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[ceph.git] / ceph / src / spdk / dpdk / drivers / net / ice / base / ice_dcb.c
1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2001-2020 Intel Corporation
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 * @persist: True if Stop/Shutdown of LLDP Agent needs to be persistent across
87 * reboots
88 * @cd: pointer to command details structure or NULL
89 *
90 * Stop or Shutdown the embedded LLDP Agent (0x0A05)
91 */
92 enum ice_status
93 ice_aq_stop_lldp(struct ice_hw *hw, bool shutdown_lldp_agent, bool persist,
94 struct ice_sq_cd *cd)
95 {
96 struct ice_aqc_lldp_stop *cmd;
97 struct ice_aq_desc desc;
98
99 cmd = &desc.params.lldp_stop;
100
101 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_stop);
102
103 if (shutdown_lldp_agent)
104 cmd->command |= ICE_AQ_LLDP_AGENT_SHUTDOWN;
105
106 if (persist)
107 cmd->command |= ICE_AQ_LLDP_AGENT_PERSIST_DIS;
108
109 return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
110 }
111
112 /**
113 * ice_aq_start_lldp
114 * @hw: pointer to the HW struct
115 * @persist: True if Start of LLDP Agent needs to be persistent across reboots
116 * @cd: pointer to command details structure or NULL
117 *
118 * Start the embedded LLDP Agent on all ports. (0x0A06)
119 */
120 enum ice_status
121 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_aq_set_lldp_mib - Set the LLDP MIB
140 * @hw: pointer to the HW struct
141 * @mib_type: Local, Remote or both Local and Remote MIBs
142 * @buf: pointer to the caller-supplied buffer to store the MIB block
143 * @buf_size: size of the buffer (in bytes)
144 * @cd: pointer to command details structure or NULL
145 *
146 * Set the LLDP MIB. (0x0A08)
147 */
148 enum ice_status
149 ice_aq_set_lldp_mib(struct ice_hw *hw, u8 mib_type, void *buf, u16 buf_size,
150 struct ice_sq_cd *cd)
151 {
152 struct ice_aqc_lldp_set_local_mib *cmd;
153 struct ice_aq_desc desc;
154
155 cmd = &desc.params.lldp_set_mib;
156
157 if (buf_size == 0 || !buf)
158 return ICE_ERR_PARAM;
159
160 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_set_local_mib);
161
162 desc.flags |= CPU_TO_LE16((u16)ICE_AQ_FLAG_RD);
163 desc.datalen = CPU_TO_LE16(buf_size);
164
165 cmd->type = mib_type;
166 cmd->length = CPU_TO_LE16(buf_size);
167
168 return ice_aq_send_cmd(hw, &desc, buf, buf_size, cd);
169 }
170
171 /**
172 * ice_get_dcbx_status
173 * @hw: pointer to the HW struct
174 *
175 * Get the DCBX status from the Firmware
176 */
177 u8 ice_get_dcbx_status(struct ice_hw *hw)
178 {
179 u32 reg;
180
181 reg = rd32(hw, PRTDCB_GENS);
182 return (u8)((reg & PRTDCB_GENS_DCBX_STATUS_M) >>
183 PRTDCB_GENS_DCBX_STATUS_S);
184 }
185
186 /**
187 * ice_parse_ieee_ets_common_tlv
188 * @buf: Data buffer to be parsed for ETS CFG/REC data
189 * @ets_cfg: Container to store parsed data
190 *
191 * Parses the common data of IEEE 802.1Qaz ETS CFG/REC TLV
192 */
193 static void
194 ice_parse_ieee_ets_common_tlv(u8 *buf, struct ice_dcb_ets_cfg *ets_cfg)
195 {
196 u8 offset = 0;
197 int i;
198
199 /* Priority Assignment Table (4 octets)
200 * Octets:| 1 | 2 | 3 | 4 |
201 * -----------------------------------------
202 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
203 * -----------------------------------------
204 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
205 * -----------------------------------------
206 */
207 for (i = 0; i < 4; i++) {
208 ets_cfg->prio_table[i * 2] =
209 ((buf[offset] & ICE_IEEE_ETS_PRIO_1_M) >>
210 ICE_IEEE_ETS_PRIO_1_S);
211 ets_cfg->prio_table[i * 2 + 1] =
212 ((buf[offset] & ICE_IEEE_ETS_PRIO_0_M) >>
213 ICE_IEEE_ETS_PRIO_0_S);
214 offset++;
215 }
216
217 /* TC Bandwidth Table (8 octets)
218 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
219 * ---------------------------------
220 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
221 * ---------------------------------
222 *
223 * TSA Assignment Table (8 octets)
224 * Octets:| 9 | 10| 11| 12| 13| 14| 15| 16|
225 * ---------------------------------
226 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
227 * ---------------------------------
228 */
229 ice_for_each_traffic_class(i) {
230 ets_cfg->tcbwtable[i] = buf[offset];
231 ets_cfg->tsatable[i] = buf[ICE_MAX_TRAFFIC_CLASS + offset++];
232 }
233 }
234
235 /**
236 * ice_parse_ieee_etscfg_tlv
237 * @tlv: IEEE 802.1Qaz ETS CFG TLV
238 * @dcbcfg: Local store to update ETS CFG data
239 *
240 * Parses IEEE 802.1Qaz ETS CFG TLV
241 */
242 static void
243 ice_parse_ieee_etscfg_tlv(struct ice_lldp_org_tlv *tlv,
244 struct ice_dcbx_cfg *dcbcfg)
245 {
246 struct ice_dcb_ets_cfg *etscfg;
247 u8 *buf = tlv->tlvinfo;
248
249 /* First Octet post subtype
250 * --------------------------
251 * |will-|CBS | Re- | Max |
252 * |ing | |served| TCs |
253 * --------------------------
254 * |1bit | 1bit|3 bits|3bits|
255 */
256 etscfg = &dcbcfg->etscfg;
257 etscfg->willing = ((buf[0] & ICE_IEEE_ETS_WILLING_M) >>
258 ICE_IEEE_ETS_WILLING_S);
259 etscfg->cbs = ((buf[0] & ICE_IEEE_ETS_CBS_M) >> ICE_IEEE_ETS_CBS_S);
260 etscfg->maxtcs = ((buf[0] & ICE_IEEE_ETS_MAXTC_M) >>
261 ICE_IEEE_ETS_MAXTC_S);
262
263 /* Begin parsing at Priority Assignment Table (offset 1 in buf) */
264 ice_parse_ieee_ets_common_tlv(&buf[1], etscfg);
265 }
266
267 /**
268 * ice_parse_ieee_etsrec_tlv
269 * @tlv: IEEE 802.1Qaz ETS REC TLV
270 * @dcbcfg: Local store to update ETS REC data
271 *
272 * Parses IEEE 802.1Qaz ETS REC TLV
273 */
274 static void
275 ice_parse_ieee_etsrec_tlv(struct ice_lldp_org_tlv *tlv,
276 struct ice_dcbx_cfg *dcbcfg)
277 {
278 u8 *buf = tlv->tlvinfo;
279
280 /* Begin parsing at Priority Assignment Table (offset 1 in buf) */
281 ice_parse_ieee_ets_common_tlv(&buf[1], &dcbcfg->etsrec);
282 }
283
284 /**
285 * ice_parse_ieee_pfccfg_tlv
286 * @tlv: IEEE 802.1Qaz PFC CFG TLV
287 * @dcbcfg: Local store to update PFC CFG data
288 *
289 * Parses IEEE 802.1Qaz PFC CFG TLV
290 */
291 static void
292 ice_parse_ieee_pfccfg_tlv(struct ice_lldp_org_tlv *tlv,
293 struct ice_dcbx_cfg *dcbcfg)
294 {
295 u8 *buf = tlv->tlvinfo;
296
297 /* ----------------------------------------
298 * |will-|MBC | Re- | PFC | PFC Enable |
299 * |ing | |served| cap | |
300 * -----------------------------------------
301 * |1bit | 1bit|2 bits|4bits| 1 octet |
302 */
303 dcbcfg->pfc.willing = ((buf[0] & ICE_IEEE_PFC_WILLING_M) >>
304 ICE_IEEE_PFC_WILLING_S);
305 dcbcfg->pfc.mbc = ((buf[0] & ICE_IEEE_PFC_MBC_M) >> ICE_IEEE_PFC_MBC_S);
306 dcbcfg->pfc.pfccap = ((buf[0] & ICE_IEEE_PFC_CAP_M) >>
307 ICE_IEEE_PFC_CAP_S);
308 dcbcfg->pfc.pfcena = buf[1];
309 }
310
311 /**
312 * ice_parse_ieee_app_tlv
313 * @tlv: IEEE 802.1Qaz APP TLV
314 * @dcbcfg: Local store to update APP PRIO data
315 *
316 * Parses IEEE 802.1Qaz APP PRIO TLV
317 */
318 static void
319 ice_parse_ieee_app_tlv(struct ice_lldp_org_tlv *tlv,
320 struct ice_dcbx_cfg *dcbcfg)
321 {
322 u16 offset = 0;
323 u16 typelen;
324 int i = 0;
325 u16 len;
326 u8 *buf;
327
328 typelen = NTOHS(tlv->typelen);
329 len = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S);
330 buf = tlv->tlvinfo;
331
332 /* Removing sizeof(ouisubtype) and reserved byte from len.
333 * Remaining len div 3 is number of APP TLVs.
334 */
335 len -= (sizeof(tlv->ouisubtype) + 1);
336
337 /* Move offset to App Priority Table */
338 offset++;
339
340 /* Application Priority Table (3 octets)
341 * Octets:| 1 | 2 | 3 |
342 * -----------------------------------------
343 * |Priority|Rsrvd| Sel | Protocol ID |
344 * -----------------------------------------
345 * Bits:|23 21|20 19|18 16|15 0|
346 * -----------------------------------------
347 */
348 while (offset < len) {
349 dcbcfg->app[i].priority = ((buf[offset] &
350 ICE_IEEE_APP_PRIO_M) >>
351 ICE_IEEE_APP_PRIO_S);
352 dcbcfg->app[i].selector = ((buf[offset] &
353 ICE_IEEE_APP_SEL_M) >>
354 ICE_IEEE_APP_SEL_S);
355 dcbcfg->app[i].prot_id = (buf[offset + 1] << 0x8) |
356 buf[offset + 2];
357 /* Move to next app */
358 offset += 3;
359 i++;
360 if (i >= ICE_DCBX_MAX_APPS)
361 break;
362 }
363
364 dcbcfg->numapps = i;
365 }
366
367 /**
368 * ice_parse_ieee_tlv
369 * @tlv: IEEE 802.1Qaz TLV
370 * @dcbcfg: Local store to update ETS REC data
371 *
372 * Get the TLV subtype and send it to parsing function
373 * based on the subtype value
374 */
375 static void
376 ice_parse_ieee_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
377 {
378 u32 ouisubtype;
379 u8 subtype;
380
381 ouisubtype = NTOHL(tlv->ouisubtype);
382 subtype = (u8)((ouisubtype & ICE_LLDP_TLV_SUBTYPE_M) >>
383 ICE_LLDP_TLV_SUBTYPE_S);
384 switch (subtype) {
385 case ICE_IEEE_SUBTYPE_ETS_CFG:
386 ice_parse_ieee_etscfg_tlv(tlv, dcbcfg);
387 break;
388 case ICE_IEEE_SUBTYPE_ETS_REC:
389 ice_parse_ieee_etsrec_tlv(tlv, dcbcfg);
390 break;
391 case ICE_IEEE_SUBTYPE_PFC_CFG:
392 ice_parse_ieee_pfccfg_tlv(tlv, dcbcfg);
393 break;
394 case ICE_IEEE_SUBTYPE_APP_PRI:
395 ice_parse_ieee_app_tlv(tlv, dcbcfg);
396 break;
397 default:
398 break;
399 }
400 }
401
402 /**
403 * ice_parse_cee_pgcfg_tlv
404 * @tlv: CEE DCBX PG CFG TLV
405 * @dcbcfg: Local store to update ETS CFG data
406 *
407 * Parses CEE DCBX PG CFG TLV
408 */
409 static void
410 ice_parse_cee_pgcfg_tlv(struct ice_cee_feat_tlv *tlv,
411 struct ice_dcbx_cfg *dcbcfg)
412 {
413 struct ice_dcb_ets_cfg *etscfg;
414 u8 *buf = tlv->tlvinfo;
415 u16 offset = 0;
416 int i;
417
418 etscfg = &dcbcfg->etscfg;
419
420 if (tlv->en_will_err & ICE_CEE_FEAT_TLV_WILLING_M)
421 etscfg->willing = 1;
422
423 etscfg->cbs = 0;
424 /* Priority Group Table (4 octets)
425 * Octets:| 1 | 2 | 3 | 4 |
426 * -----------------------------------------
427 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
428 * -----------------------------------------
429 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
430 * -----------------------------------------
431 */
432 for (i = 0; i < 4; i++) {
433 etscfg->prio_table[i * 2] =
434 ((buf[offset] & ICE_CEE_PGID_PRIO_1_M) >>
435 ICE_CEE_PGID_PRIO_1_S);
436 etscfg->prio_table[i * 2 + 1] =
437 ((buf[offset] & ICE_CEE_PGID_PRIO_0_M) >>
438 ICE_CEE_PGID_PRIO_0_S);
439 offset++;
440 }
441
442 /* PG Percentage Table (8 octets)
443 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
444 * ---------------------------------
445 * |pg0|pg1|pg2|pg3|pg4|pg5|pg6|pg7|
446 * ---------------------------------
447 */
448 ice_for_each_traffic_class(i) {
449 etscfg->tcbwtable[i] = buf[offset++];
450
451 if (etscfg->prio_table[i] == ICE_CEE_PGID_STRICT)
452 dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_STRICT;
453 else
454 dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_ETS;
455 }
456
457 /* Number of TCs supported (1 octet) */
458 etscfg->maxtcs = buf[offset];
459 }
460
461 /**
462 * ice_parse_cee_pfccfg_tlv
463 * @tlv: CEE DCBX PFC CFG TLV
464 * @dcbcfg: Local store to update PFC CFG data
465 *
466 * Parses CEE DCBX PFC CFG TLV
467 */
468 static void
469 ice_parse_cee_pfccfg_tlv(struct ice_cee_feat_tlv *tlv,
470 struct ice_dcbx_cfg *dcbcfg)
471 {
472 u8 *buf = tlv->tlvinfo;
473
474 if (tlv->en_will_err & ICE_CEE_FEAT_TLV_WILLING_M)
475 dcbcfg->pfc.willing = 1;
476
477 /* ------------------------
478 * | PFC Enable | PFC TCs |
479 * ------------------------
480 * | 1 octet | 1 octet |
481 */
482 dcbcfg->pfc.pfcena = buf[0];
483 dcbcfg->pfc.pfccap = buf[1];
484 }
485
486 /**
487 * ice_parse_cee_app_tlv
488 * @tlv: CEE DCBX APP TLV
489 * @dcbcfg: Local store to update APP PRIO data
490 *
491 * Parses CEE DCBX APP PRIO TLV
492 */
493 static void
494 ice_parse_cee_app_tlv(struct ice_cee_feat_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
495 {
496 u16 len, typelen, offset = 0;
497 struct ice_cee_app_prio *app;
498 u8 i;
499
500 typelen = NTOHS(tlv->hdr.typelen);
501 len = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S);
502
503 dcbcfg->numapps = len / sizeof(*app);
504 if (!dcbcfg->numapps)
505 return;
506 if (dcbcfg->numapps > ICE_DCBX_MAX_APPS)
507 dcbcfg->numapps = ICE_DCBX_MAX_APPS;
508
509 for (i = 0; i < dcbcfg->numapps; i++) {
510 u8 up, selector;
511
512 app = (struct ice_cee_app_prio *)(tlv->tlvinfo + offset);
513 for (up = 0; up < ICE_MAX_USER_PRIORITY; up++)
514 if (app->prio_map & BIT(up))
515 break;
516
517 dcbcfg->app[i].priority = up;
518
519 /* Get Selector from lower 2 bits, and convert to IEEE */
520 selector = (app->upper_oui_sel & ICE_CEE_APP_SELECTOR_M);
521 switch (selector) {
522 case ICE_CEE_APP_SEL_ETHTYPE:
523 dcbcfg->app[i].selector = ICE_APP_SEL_ETHTYPE;
524 break;
525 case ICE_CEE_APP_SEL_TCPIP:
526 dcbcfg->app[i].selector = ICE_APP_SEL_TCPIP;
527 break;
528 default:
529 /* Keep selector as it is for unknown types */
530 dcbcfg->app[i].selector = selector;
531 }
532
533 dcbcfg->app[i].prot_id = NTOHS(app->protocol);
534 /* Move to next app */
535 offset += sizeof(*app);
536 }
537 }
538
539 /**
540 * ice_parse_cee_tlv
541 * @tlv: CEE DCBX TLV
542 * @dcbcfg: Local store to update DCBX config data
543 *
544 * Get the TLV subtype and send it to parsing function
545 * based on the subtype value
546 */
547 static void
548 ice_parse_cee_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
549 {
550 struct ice_cee_feat_tlv *sub_tlv;
551 u8 subtype, feat_tlv_count = 0;
552 u16 len, tlvlen, typelen;
553 u32 ouisubtype;
554
555 ouisubtype = NTOHL(tlv->ouisubtype);
556 subtype = (u8)((ouisubtype & ICE_LLDP_TLV_SUBTYPE_M) >>
557 ICE_LLDP_TLV_SUBTYPE_S);
558 /* Return if not CEE DCBX */
559 if (subtype != ICE_CEE_DCBX_TYPE)
560 return;
561
562 typelen = NTOHS(tlv->typelen);
563 tlvlen = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S);
564 len = sizeof(tlv->typelen) + sizeof(ouisubtype) +
565 sizeof(struct ice_cee_ctrl_tlv);
566 /* Return if no CEE DCBX Feature TLVs */
567 if (tlvlen <= len)
568 return;
569
570 sub_tlv = (struct ice_cee_feat_tlv *)((char *)tlv + len);
571 while (feat_tlv_count < ICE_CEE_MAX_FEAT_TYPE) {
572 u16 sublen;
573
574 typelen = NTOHS(sub_tlv->hdr.typelen);
575 sublen = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S);
576 subtype = (u8)((typelen & ICE_LLDP_TLV_TYPE_M) >>
577 ICE_LLDP_TLV_TYPE_S);
578 switch (subtype) {
579 case ICE_CEE_SUBTYPE_PG_CFG:
580 ice_parse_cee_pgcfg_tlv(sub_tlv, dcbcfg);
581 break;
582 case ICE_CEE_SUBTYPE_PFC_CFG:
583 ice_parse_cee_pfccfg_tlv(sub_tlv, dcbcfg);
584 break;
585 case ICE_CEE_SUBTYPE_APP_PRI:
586 ice_parse_cee_app_tlv(sub_tlv, dcbcfg);
587 break;
588 default:
589 return; /* Invalid Sub-type return */
590 }
591 feat_tlv_count++;
592 /* Move to next sub TLV */
593 sub_tlv = (struct ice_cee_feat_tlv *)
594 ((char *)sub_tlv + sizeof(sub_tlv->hdr.typelen) +
595 sublen);
596 }
597 }
598
599 /**
600 * ice_parse_org_tlv
601 * @tlv: Organization specific TLV
602 * @dcbcfg: Local store to update ETS REC data
603 *
604 * Currently only IEEE 802.1Qaz TLV is supported, all others
605 * will be returned
606 */
607 static void
608 ice_parse_org_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
609 {
610 u32 ouisubtype;
611 u32 oui;
612
613 ouisubtype = NTOHL(tlv->ouisubtype);
614 oui = ((ouisubtype & ICE_LLDP_TLV_OUI_M) >> ICE_LLDP_TLV_OUI_S);
615 switch (oui) {
616 case ICE_IEEE_8021QAZ_OUI:
617 ice_parse_ieee_tlv(tlv, dcbcfg);
618 break;
619 case ICE_CEE_DCBX_OUI:
620 ice_parse_cee_tlv(tlv, dcbcfg);
621 break;
622 default:
623 break;
624 }
625 }
626
627 /**
628 * ice_lldp_to_dcb_cfg
629 * @lldpmib: LLDPDU to be parsed
630 * @dcbcfg: store for LLDPDU data
631 *
632 * Parse DCB configuration from the LLDPDU
633 */
634 enum ice_status
635 ice_lldp_to_dcb_cfg(u8 *lldpmib, struct ice_dcbx_cfg *dcbcfg)
636 {
637 struct ice_lldp_org_tlv *tlv;
638 enum ice_status ret = ICE_SUCCESS;
639 u16 offset = 0;
640 u16 typelen;
641 u16 type;
642 u16 len;
643
644 if (!lldpmib || !dcbcfg)
645 return ICE_ERR_PARAM;
646
647 /* set to the start of LLDPDU */
648 lldpmib += ETH_HEADER_LEN;
649 tlv = (struct ice_lldp_org_tlv *)lldpmib;
650 while (1) {
651 typelen = NTOHS(tlv->typelen);
652 type = ((typelen & ICE_LLDP_TLV_TYPE_M) >> ICE_LLDP_TLV_TYPE_S);
653 len = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S);
654 offset += sizeof(typelen) + len;
655
656 /* END TLV or beyond LLDPDU size */
657 if (type == ICE_TLV_TYPE_END || offset > ICE_LLDPDU_SIZE)
658 break;
659
660 switch (type) {
661 case ICE_TLV_TYPE_ORG:
662 ice_parse_org_tlv(tlv, dcbcfg);
663 break;
664 default:
665 break;
666 }
667
668 /* Move to next TLV */
669 tlv = (struct ice_lldp_org_tlv *)
670 ((char *)tlv + sizeof(tlv->typelen) + len);
671 }
672
673 return ret;
674 }
675
676 /**
677 * ice_aq_get_dcb_cfg
678 * @hw: pointer to the HW struct
679 * @mib_type: MIB type for the query
680 * @bridgetype: bridge type for the query (remote)
681 * @dcbcfg: store for LLDPDU data
682 *
683 * Query DCB configuration from the firmware
684 */
685 enum ice_status
686 ice_aq_get_dcb_cfg(struct ice_hw *hw, u8 mib_type, u8 bridgetype,
687 struct ice_dcbx_cfg *dcbcfg)
688 {
689 enum ice_status ret;
690 u8 *lldpmib;
691
692 /* Allocate the LLDPDU */
693 lldpmib = (u8 *)ice_malloc(hw, ICE_LLDPDU_SIZE);
694 if (!lldpmib)
695 return ICE_ERR_NO_MEMORY;
696
697 ret = ice_aq_get_lldp_mib(hw, bridgetype, mib_type, (void *)lldpmib,
698 ICE_LLDPDU_SIZE, NULL, NULL, NULL);
699
700 if (ret == ICE_SUCCESS)
701 /* Parse LLDP MIB to get DCB configuration */
702 ret = ice_lldp_to_dcb_cfg(lldpmib, dcbcfg);
703
704 ice_free(hw, lldpmib);
705
706 return ret;
707 }
708
709 /**
710 * ice_aq_start_stop_dcbx - Start/Stop DCBX service in FW
711 * @hw: pointer to the HW struct
712 * @start_dcbx_agent: True if DCBX Agent needs to be started
713 * False if DCBX Agent needs to be stopped
714 * @dcbx_agent_status: FW indicates back the DCBX agent status
715 * True if DCBX Agent is active
716 * False if DCBX Agent is stopped
717 * @cd: pointer to command details structure or NULL
718 *
719 * Start/Stop the embedded dcbx Agent. In case that this wrapper function
720 * returns ICE_SUCCESS, caller will need to check if FW returns back the same
721 * value as stated in dcbx_agent_status, and react accordingly. (0x0A09)
722 */
723 enum ice_status
724 ice_aq_start_stop_dcbx(struct ice_hw *hw, bool start_dcbx_agent,
725 bool *dcbx_agent_status, struct ice_sq_cd *cd)
726 {
727 struct ice_aqc_lldp_stop_start_specific_agent *cmd;
728 enum ice_status status;
729 struct ice_aq_desc desc;
730 u16 opcode;
731
732 cmd = &desc.params.lldp_agent_ctrl;
733
734 opcode = ice_aqc_opc_lldp_stop_start_specific_agent;
735
736 ice_fill_dflt_direct_cmd_desc(&desc, opcode);
737
738 if (start_dcbx_agent)
739 cmd->command = ICE_AQC_START_STOP_AGENT_START_DCBX;
740
741 status = ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
742
743 *dcbx_agent_status = false;
744
745 if (status == ICE_SUCCESS &&
746 cmd->command == ICE_AQC_START_STOP_AGENT_START_DCBX)
747 *dcbx_agent_status = true;
748
749 return status;
750 }
751
752 /**
753 * ice_aq_get_cee_dcb_cfg
754 * @hw: pointer to the HW struct
755 * @buff: response buffer that stores CEE operational configuration
756 * @cd: pointer to command details structure or NULL
757 *
758 * Get CEE DCBX mode operational configuration from firmware (0x0A07)
759 */
760 enum ice_status
761 ice_aq_get_cee_dcb_cfg(struct ice_hw *hw,
762 struct ice_aqc_get_cee_dcb_cfg_resp *buff,
763 struct ice_sq_cd *cd)
764 {
765 struct ice_aq_desc desc;
766
767 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_cee_dcb_cfg);
768
769 return ice_aq_send_cmd(hw, &desc, (void *)buff, sizeof(*buff), cd);
770 }
771
772 /**
773 * ice_cee_to_dcb_cfg
774 * @cee_cfg: pointer to CEE configuration struct
775 * @dcbcfg: DCB configuration struct
776 *
777 * Convert CEE configuration from firmware to DCB configuration
778 */
779 static void
780 ice_cee_to_dcb_cfg(struct ice_aqc_get_cee_dcb_cfg_resp *cee_cfg,
781 struct ice_dcbx_cfg *dcbcfg)
782 {
783 u32 status, tlv_status = LE32_TO_CPU(cee_cfg->tlv_status);
784 u32 ice_aqc_cee_status_mask, ice_aqc_cee_status_shift;
785 u16 app_prio = LE16_TO_CPU(cee_cfg->oper_app_prio);
786 u8 i, err, sync, oper, app_index, ice_app_sel_type;
787 u16 ice_aqc_cee_app_mask, ice_aqc_cee_app_shift;
788 u16 ice_app_prot_id_type;
789
790 /* CEE PG data to ETS config */
791 dcbcfg->etscfg.maxtcs = cee_cfg->oper_num_tc;
792
793 /* Note that the FW creates the oper_prio_tc nibbles reversed
794 * from those in the CEE Priority Group sub-TLV.
795 */
796 for (i = 0; i < ICE_MAX_TRAFFIC_CLASS / 2; i++) {
797 dcbcfg->etscfg.prio_table[i * 2] =
798 ((cee_cfg->oper_prio_tc[i] & ICE_CEE_PGID_PRIO_0_M) >>
799 ICE_CEE_PGID_PRIO_0_S);
800 dcbcfg->etscfg.prio_table[i * 2 + 1] =
801 ((cee_cfg->oper_prio_tc[i] & ICE_CEE_PGID_PRIO_1_M) >>
802 ICE_CEE_PGID_PRIO_1_S);
803 }
804
805 ice_for_each_traffic_class(i) {
806 dcbcfg->etscfg.tcbwtable[i] = cee_cfg->oper_tc_bw[i];
807
808 if (dcbcfg->etscfg.prio_table[i] == ICE_CEE_PGID_STRICT) {
809 /* Map it to next empty TC */
810 dcbcfg->etscfg.prio_table[i] = cee_cfg->oper_num_tc - 1;
811 dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_STRICT;
812 } else {
813 dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_ETS;
814 }
815 }
816
817 /* CEE PFC data to ETS config */
818 dcbcfg->pfc.pfcena = cee_cfg->oper_pfc_en;
819 dcbcfg->pfc.pfccap = ICE_MAX_TRAFFIC_CLASS;
820
821 app_index = 0;
822 for (i = 0; i < 3; i++) {
823 if (i == 0) {
824 /* FCoE APP */
825 ice_aqc_cee_status_mask = ICE_AQC_CEE_FCOE_STATUS_M;
826 ice_aqc_cee_status_shift = ICE_AQC_CEE_FCOE_STATUS_S;
827 ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_FCOE_M;
828 ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_FCOE_S;
829 ice_app_sel_type = ICE_APP_SEL_ETHTYPE;
830 ice_app_prot_id_type = ICE_APP_PROT_ID_FCOE;
831 } else if (i == 1) {
832 /* iSCSI APP */
833 ice_aqc_cee_status_mask = ICE_AQC_CEE_ISCSI_STATUS_M;
834 ice_aqc_cee_status_shift = ICE_AQC_CEE_ISCSI_STATUS_S;
835 ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_ISCSI_M;
836 ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_ISCSI_S;
837 ice_app_sel_type = ICE_APP_SEL_TCPIP;
838 ice_app_prot_id_type = ICE_APP_PROT_ID_ISCSI;
839 } else {
840 /* FIP APP */
841 ice_aqc_cee_status_mask = ICE_AQC_CEE_FIP_STATUS_M;
842 ice_aqc_cee_status_shift = ICE_AQC_CEE_FIP_STATUS_S;
843 ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_FIP_M;
844 ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_FIP_S;
845 ice_app_sel_type = ICE_APP_SEL_ETHTYPE;
846 ice_app_prot_id_type = ICE_APP_PROT_ID_FIP;
847 }
848
849 status = (tlv_status & ice_aqc_cee_status_mask) >>
850 ice_aqc_cee_status_shift;
851 err = (status & ICE_TLV_STATUS_ERR) ? 1 : 0;
852 sync = (status & ICE_TLV_STATUS_SYNC) ? 1 : 0;
853 oper = (status & ICE_TLV_STATUS_OPER) ? 1 : 0;
854 /* Add FCoE/iSCSI/FIP APP if Error is False and
855 * Oper/Sync is True
856 */
857 if (!err && sync && oper) {
858 dcbcfg->app[app_index].priority =
859 (app_prio & ice_aqc_cee_app_mask) >>
860 ice_aqc_cee_app_shift;
861 dcbcfg->app[app_index].selector = ice_app_sel_type;
862 dcbcfg->app[app_index].prot_id = ice_app_prot_id_type;
863 app_index++;
864 }
865 }
866
867 dcbcfg->numapps = app_index;
868 }
869
870 /**
871 * ice_get_ieee_dcb_cfg
872 * @pi: port information structure
873 * @dcbx_mode: mode of DCBX (IEEE or CEE)
874 *
875 * Get IEEE or CEE mode DCB configuration from the Firmware
876 */
877 STATIC enum ice_status
878 ice_get_ieee_or_cee_dcb_cfg(struct ice_port_info *pi, u8 dcbx_mode)
879 {
880 struct ice_dcbx_cfg *dcbx_cfg = NULL;
881 enum ice_status ret;
882
883 if (!pi)
884 return ICE_ERR_PARAM;
885
886 if (dcbx_mode == ICE_DCBX_MODE_IEEE)
887 dcbx_cfg = &pi->local_dcbx_cfg;
888 else if (dcbx_mode == ICE_DCBX_MODE_CEE)
889 dcbx_cfg = &pi->desired_dcbx_cfg;
890
891 /* Get Local DCB Config in case of ICE_DCBX_MODE_IEEE
892 * or get CEE DCB Desired Config in case of ICE_DCBX_MODE_CEE
893 */
894 ret = ice_aq_get_dcb_cfg(pi->hw, ICE_AQ_LLDP_MIB_LOCAL,
895 ICE_AQ_LLDP_BRID_TYPE_NEAREST_BRID, dcbx_cfg);
896 if (ret)
897 goto out;
898
899 /* Get Remote DCB Config */
900 dcbx_cfg = &pi->remote_dcbx_cfg;
901 ret = ice_aq_get_dcb_cfg(pi->hw, ICE_AQ_LLDP_MIB_REMOTE,
902 ICE_AQ_LLDP_BRID_TYPE_NEAREST_BRID, dcbx_cfg);
903 /* Don't treat ENOENT as an error for Remote MIBs */
904 if (pi->hw->adminq.sq_last_status == ICE_AQ_RC_ENOENT)
905 ret = ICE_SUCCESS;
906
907 out:
908 return ret;
909 }
910
911 /**
912 * ice_get_dcb_cfg
913 * @pi: port information structure
914 *
915 * Get DCB configuration from the Firmware
916 */
917 enum ice_status ice_get_dcb_cfg(struct ice_port_info *pi)
918 {
919 struct ice_aqc_get_cee_dcb_cfg_resp cee_cfg;
920 struct ice_dcbx_cfg *dcbx_cfg;
921 enum ice_status ret;
922
923 if (!pi)
924 return ICE_ERR_PARAM;
925
926 ret = ice_aq_get_cee_dcb_cfg(pi->hw, &cee_cfg, NULL);
927 if (ret == ICE_SUCCESS) {
928 /* CEE mode */
929 dcbx_cfg = &pi->local_dcbx_cfg;
930 dcbx_cfg->dcbx_mode = ICE_DCBX_MODE_CEE;
931 dcbx_cfg->tlv_status = LE32_TO_CPU(cee_cfg.tlv_status);
932 ice_cee_to_dcb_cfg(&cee_cfg, dcbx_cfg);
933 ret = ice_get_ieee_or_cee_dcb_cfg(pi, ICE_DCBX_MODE_CEE);
934 } else if (pi->hw->adminq.sq_last_status == ICE_AQ_RC_ENOENT) {
935 /* CEE mode not enabled try querying IEEE data */
936 dcbx_cfg = &pi->local_dcbx_cfg;
937 dcbx_cfg->dcbx_mode = ICE_DCBX_MODE_IEEE;
938 ret = ice_get_ieee_or_cee_dcb_cfg(pi, ICE_DCBX_MODE_IEEE);
939 }
940
941 return ret;
942 }
943
944 /**
945 * ice_init_dcb
946 * @hw: pointer to the HW struct
947 * @enable_mib_change: enable MIB change event
948 *
949 * Update DCB configuration from the Firmware
950 */
951 enum ice_status ice_init_dcb(struct ice_hw *hw, bool enable_mib_change)
952 {
953 struct ice_port_info *pi = hw->port_info;
954 enum ice_status ret = ICE_SUCCESS;
955
956 if (!hw->func_caps.common_cap.dcb)
957 return ICE_ERR_NOT_SUPPORTED;
958
959 pi->is_sw_lldp = true;
960
961 /* Get DCBX status */
962 pi->dcbx_status = ice_get_dcbx_status(hw);
963
964 if (pi->dcbx_status == ICE_DCBX_STATUS_DONE ||
965 pi->dcbx_status == ICE_DCBX_STATUS_IN_PROGRESS ||
966 pi->dcbx_status == ICE_DCBX_STATUS_NOT_STARTED) {
967 /* Get current DCBX configuration */
968 ret = ice_get_dcb_cfg(pi);
969 if (ret)
970 return ret;
971 pi->is_sw_lldp = false;
972 } else if (pi->dcbx_status == ICE_DCBX_STATUS_DIS) {
973 return ICE_ERR_NOT_READY;
974 }
975
976 /* Configure the LLDP MIB change event */
977 if (enable_mib_change) {
978 ret = ice_aq_cfg_lldp_mib_change(hw, true, NULL);
979 if (ret)
980 pi->is_sw_lldp = true;
981 }
982
983 return ret;
984 }
985
986 /**
987 * ice_cfg_lldp_mib_change
988 * @hw: pointer to the HW struct
989 * @ena_mib: enable/disable MIB change event
990 *
991 * Configure (disable/enable) MIB
992 */
993 enum ice_status ice_cfg_lldp_mib_change(struct ice_hw *hw, bool ena_mib)
994 {
995 struct ice_port_info *pi = hw->port_info;
996 enum ice_status ret;
997
998 if (!hw->func_caps.common_cap.dcb)
999 return ICE_ERR_NOT_SUPPORTED;
1000
1001 /* Get DCBX status */
1002 pi->dcbx_status = ice_get_dcbx_status(hw);
1003
1004 if (pi->dcbx_status == ICE_DCBX_STATUS_DIS)
1005 return ICE_ERR_NOT_READY;
1006
1007 ret = ice_aq_cfg_lldp_mib_change(hw, ena_mib, NULL);
1008 if (!ret)
1009 pi->is_sw_lldp = !ena_mib;
1010
1011 return ret;
1012 }
1013
1014 /**
1015 * ice_add_ieee_ets_common_tlv
1016 * @buf: Data buffer to be populated with ice_dcb_ets_cfg data
1017 * @ets_cfg: Container for ice_dcb_ets_cfg data
1018 *
1019 * Populate the TLV buffer with ice_dcb_ets_cfg data
1020 */
1021 static void
1022 ice_add_ieee_ets_common_tlv(u8 *buf, struct ice_dcb_ets_cfg *ets_cfg)
1023 {
1024 u8 priority0, priority1;
1025 u8 offset = 0;
1026 int i;
1027
1028 /* Priority Assignment Table (4 octets)
1029 * Octets:| 1 | 2 | 3 | 4 |
1030 * -----------------------------------------
1031 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
1032 * -----------------------------------------
1033 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
1034 * -----------------------------------------
1035 */
1036 for (i = 0; i < ICE_MAX_TRAFFIC_CLASS / 2; i++) {
1037 priority0 = ets_cfg->prio_table[i * 2] & 0xF;
1038 priority1 = ets_cfg->prio_table[i * 2 + 1] & 0xF;
1039 buf[offset] = (priority0 << ICE_IEEE_ETS_PRIO_1_S) | priority1;
1040 offset++;
1041 }
1042
1043 /* TC Bandwidth Table (8 octets)
1044 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
1045 * ---------------------------------
1046 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
1047 * ---------------------------------
1048 *
1049 * TSA Assignment Table (8 octets)
1050 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
1051 * ---------------------------------
1052 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
1053 * ---------------------------------
1054 */
1055 ice_for_each_traffic_class(i) {
1056 buf[offset] = ets_cfg->tcbwtable[i];
1057 buf[ICE_MAX_TRAFFIC_CLASS + offset] = ets_cfg->tsatable[i];
1058 offset++;
1059 }
1060 }
1061
1062 /**
1063 * ice_add_ieee_ets_tlv - Prepare ETS TLV in IEEE format
1064 * @tlv: Fill the ETS config data in IEEE format
1065 * @dcbcfg: Local store which holds the DCB Config
1066 *
1067 * Prepare IEEE 802.1Qaz ETS CFG TLV
1068 */
1069 static void
1070 ice_add_ieee_ets_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
1071 {
1072 struct ice_dcb_ets_cfg *etscfg;
1073 u8 *buf = tlv->tlvinfo;
1074 u8 maxtcwilling = 0;
1075 u32 ouisubtype;
1076 u16 typelen;
1077
1078 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1079 ICE_IEEE_ETS_TLV_LEN);
1080 tlv->typelen = HTONS(typelen);
1081
1082 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
1083 ICE_IEEE_SUBTYPE_ETS_CFG);
1084 tlv->ouisubtype = HTONL(ouisubtype);
1085
1086 /* First Octet post subtype
1087 * --------------------------
1088 * |will-|CBS | Re- | Max |
1089 * |ing | |served| TCs |
1090 * --------------------------
1091 * |1bit | 1bit|3 bits|3bits|
1092 */
1093 etscfg = &dcbcfg->etscfg;
1094 if (etscfg->willing)
1095 maxtcwilling = BIT(ICE_IEEE_ETS_WILLING_S);
1096 maxtcwilling |= etscfg->maxtcs & ICE_IEEE_ETS_MAXTC_M;
1097 buf[0] = maxtcwilling;
1098
1099 /* Begin adding at Priority Assignment Table (offset 1 in buf) */
1100 ice_add_ieee_ets_common_tlv(&buf[1], etscfg);
1101 }
1102
1103 /**
1104 * ice_add_ieee_etsrec_tlv - Prepare ETS Recommended TLV in IEEE format
1105 * @tlv: Fill ETS Recommended TLV in IEEE format
1106 * @dcbcfg: Local store which holds the DCB Config
1107 *
1108 * Prepare IEEE 802.1Qaz ETS REC TLV
1109 */
1110 static void
1111 ice_add_ieee_etsrec_tlv(struct ice_lldp_org_tlv *tlv,
1112 struct ice_dcbx_cfg *dcbcfg)
1113 {
1114 struct ice_dcb_ets_cfg *etsrec;
1115 u8 *buf = tlv->tlvinfo;
1116 u32 ouisubtype;
1117 u16 typelen;
1118
1119 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1120 ICE_IEEE_ETS_TLV_LEN);
1121 tlv->typelen = HTONS(typelen);
1122
1123 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
1124 ICE_IEEE_SUBTYPE_ETS_REC);
1125 tlv->ouisubtype = HTONL(ouisubtype);
1126
1127 etsrec = &dcbcfg->etsrec;
1128
1129 /* First Octet is reserved */
1130 /* Begin adding at Priority Assignment Table (offset 1 in buf) */
1131 ice_add_ieee_ets_common_tlv(&buf[1], etsrec);
1132 }
1133
1134 /**
1135 * ice_add_ieee_pfc_tlv - Prepare PFC TLV in IEEE format
1136 * @tlv: Fill PFC TLV in IEEE format
1137 * @dcbcfg: Local store which holds the PFC CFG data
1138 *
1139 * Prepare IEEE 802.1Qaz PFC CFG TLV
1140 */
1141 static void
1142 ice_add_ieee_pfc_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
1143 {
1144 u8 *buf = tlv->tlvinfo;
1145 u32 ouisubtype;
1146 u16 typelen;
1147
1148 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1149 ICE_IEEE_PFC_TLV_LEN);
1150 tlv->typelen = HTONS(typelen);
1151
1152 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
1153 ICE_IEEE_SUBTYPE_PFC_CFG);
1154 tlv->ouisubtype = HTONL(ouisubtype);
1155
1156 /* ----------------------------------------
1157 * |will-|MBC | Re- | PFC | PFC Enable |
1158 * |ing | |served| cap | |
1159 * -----------------------------------------
1160 * |1bit | 1bit|2 bits|4bits| 1 octet |
1161 */
1162 if (dcbcfg->pfc.willing)
1163 buf[0] = BIT(ICE_IEEE_PFC_WILLING_S);
1164
1165 if (dcbcfg->pfc.mbc)
1166 buf[0] |= BIT(ICE_IEEE_PFC_MBC_S);
1167
1168 buf[0] |= dcbcfg->pfc.pfccap & 0xF;
1169 buf[1] = dcbcfg->pfc.pfcena;
1170 }
1171
1172 /**
1173 * ice_add_ieee_app_pri_tlv - Prepare APP TLV in IEEE format
1174 * @tlv: Fill APP TLV in IEEE format
1175 * @dcbcfg: Local store which holds the APP CFG data
1176 *
1177 * Prepare IEEE 802.1Qaz APP CFG TLV
1178 */
1179 static void
1180 ice_add_ieee_app_pri_tlv(struct ice_lldp_org_tlv *tlv,
1181 struct ice_dcbx_cfg *dcbcfg)
1182 {
1183 u16 typelen, len, offset = 0;
1184 u8 priority, selector, i = 0;
1185 u8 *buf = tlv->tlvinfo;
1186 u32 ouisubtype;
1187
1188 /* No APP TLVs then just return */
1189 if (dcbcfg->numapps == 0)
1190 return;
1191 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
1192 ICE_IEEE_SUBTYPE_APP_PRI);
1193 tlv->ouisubtype = HTONL(ouisubtype);
1194
1195 /* Move offset to App Priority Table */
1196 offset++;
1197 /* Application Priority Table (3 octets)
1198 * Octets:| 1 | 2 | 3 |
1199 * -----------------------------------------
1200 * |Priority|Rsrvd| Sel | Protocol ID |
1201 * -----------------------------------------
1202 * Bits:|23 21|20 19|18 16|15 0|
1203 * -----------------------------------------
1204 */
1205 while (i < dcbcfg->numapps) {
1206 priority = dcbcfg->app[i].priority & 0x7;
1207 selector = dcbcfg->app[i].selector & 0x7;
1208 buf[offset] = (priority << ICE_IEEE_APP_PRIO_S) | selector;
1209 buf[offset + 1] = (dcbcfg->app[i].prot_id >> 0x8) & 0xFF;
1210 buf[offset + 2] = dcbcfg->app[i].prot_id & 0xFF;
1211 /* Move to next app */
1212 offset += 3;
1213 i++;
1214 if (i >= ICE_DCBX_MAX_APPS)
1215 break;
1216 }
1217 /* len includes size of ouisubtype + 1 reserved + 3*numapps */
1218 len = sizeof(tlv->ouisubtype) + 1 + (i * 3);
1219 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | (len & 0x1FF));
1220 tlv->typelen = HTONS(typelen);
1221 }
1222
1223 /**
1224 * ice_add_dcb_tlv - Add all IEEE TLVs
1225 * @tlv: Fill TLV data in IEEE format
1226 * @dcbcfg: Local store which holds the DCB Config
1227 * @tlvid: Type of IEEE TLV
1228 *
1229 * Add tlv information
1230 */
1231 static void
1232 ice_add_dcb_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg,
1233 u16 tlvid)
1234 {
1235 switch (tlvid) {
1236 case ICE_IEEE_TLV_ID_ETS_CFG:
1237 ice_add_ieee_ets_tlv(tlv, dcbcfg);
1238 break;
1239 case ICE_IEEE_TLV_ID_ETS_REC:
1240 ice_add_ieee_etsrec_tlv(tlv, dcbcfg);
1241 break;
1242 case ICE_IEEE_TLV_ID_PFC_CFG:
1243 ice_add_ieee_pfc_tlv(tlv, dcbcfg);
1244 break;
1245 case ICE_IEEE_TLV_ID_APP_PRI:
1246 ice_add_ieee_app_pri_tlv(tlv, dcbcfg);
1247 break;
1248 default:
1249 break;
1250 }
1251 }
1252
1253 /**
1254 * ice_dcb_cfg_to_lldp - Convert DCB configuration to MIB format
1255 * @lldpmib: pointer to the HW struct
1256 * @miblen: length of LLDP MIB
1257 * @dcbcfg: Local store which holds the DCB Config
1258 *
1259 * Convert the DCB configuration to MIB format
1260 */
1261 void ice_dcb_cfg_to_lldp(u8 *lldpmib, u16 *miblen, struct ice_dcbx_cfg *dcbcfg)
1262 {
1263 u16 len, offset = 0, tlvid = ICE_TLV_ID_START;
1264 struct ice_lldp_org_tlv *tlv;
1265 u16 typelen;
1266
1267 tlv = (struct ice_lldp_org_tlv *)lldpmib;
1268 while (1) {
1269 ice_add_dcb_tlv(tlv, dcbcfg, tlvid++);
1270 typelen = NTOHS(tlv->typelen);
1271 len = (typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S;
1272 if (len)
1273 offset += len + 2;
1274 /* END TLV or beyond LLDPDU size */
1275 if (tlvid >= ICE_TLV_ID_END_OF_LLDPPDU ||
1276 offset > ICE_LLDPDU_SIZE)
1277 break;
1278 /* Move to next TLV */
1279 if (len)
1280 tlv = (struct ice_lldp_org_tlv *)
1281 ((char *)tlv + sizeof(tlv->typelen) + len);
1282 }
1283 *miblen = offset;
1284 }
1285
1286 /**
1287 * ice_set_dcb_cfg - Set the local LLDP MIB to FW
1288 * @pi: port information structure
1289 *
1290 * Set DCB configuration to the Firmware
1291 */
1292 enum ice_status ice_set_dcb_cfg(struct ice_port_info *pi)
1293 {
1294 u8 mib_type, *lldpmib = NULL;
1295 struct ice_dcbx_cfg *dcbcfg;
1296 enum ice_status ret;
1297 struct ice_hw *hw;
1298 u16 miblen;
1299
1300 if (!pi)
1301 return ICE_ERR_PARAM;
1302
1303 hw = pi->hw;
1304
1305 /* update the HW local config */
1306 dcbcfg = &pi->local_dcbx_cfg;
1307 /* Allocate the LLDPDU */
1308 lldpmib = (u8 *)ice_malloc(hw, ICE_LLDPDU_SIZE);
1309 if (!lldpmib)
1310 return ICE_ERR_NO_MEMORY;
1311
1312 mib_type = SET_LOCAL_MIB_TYPE_LOCAL_MIB;
1313 if (dcbcfg->app_mode == ICE_DCBX_APPS_NON_WILLING)
1314 mib_type |= SET_LOCAL_MIB_TYPE_CEE_NON_WILLING;
1315
1316 ice_dcb_cfg_to_lldp(lldpmib, &miblen, dcbcfg);
1317 ret = ice_aq_set_lldp_mib(hw, mib_type, (void *)lldpmib, miblen,
1318 NULL);
1319
1320 ice_free(hw, lldpmib);
1321
1322 return ret;
1323 }
1324
1325 /**
1326 * ice_aq_query_port_ets - query port ETS configuration
1327 * @pi: port information structure
1328 * @buf: pointer to buffer
1329 * @buf_size: buffer size in bytes
1330 * @cd: pointer to command details structure or NULL
1331 *
1332 * query current port ETS configuration
1333 */
1334 enum ice_status
1335 ice_aq_query_port_ets(struct ice_port_info *pi,
1336 struct ice_aqc_port_ets_elem *buf, u16 buf_size,
1337 struct ice_sq_cd *cd)
1338 {
1339 struct ice_aqc_query_port_ets *cmd;
1340 struct ice_aq_desc desc;
1341 enum ice_status status;
1342
1343 if (!pi)
1344 return ICE_ERR_PARAM;
1345 cmd = &desc.params.port_ets;
1346 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_query_port_ets);
1347 cmd->port_teid = pi->root->info.node_teid;
1348
1349 status = ice_aq_send_cmd(pi->hw, &desc, buf, buf_size, cd);
1350 return status;
1351 }
1352
1353 /**
1354 * ice_update_port_tc_tree_cfg - update TC tree configuration
1355 * @pi: port information structure
1356 * @buf: pointer to buffer
1357 *
1358 * update the SW DB with the new TC changes
1359 */
1360 enum ice_status
1361 ice_update_port_tc_tree_cfg(struct ice_port_info *pi,
1362 struct ice_aqc_port_ets_elem *buf)
1363 {
1364 struct ice_sched_node *node, *tc_node;
1365 struct ice_aqc_get_elem elem;
1366 enum ice_status status = ICE_SUCCESS;
1367 u32 teid1, teid2;
1368 u8 i, j;
1369
1370 if (!pi)
1371 return ICE_ERR_PARAM;
1372 /* suspend the missing TC nodes */
1373 for (i = 0; i < pi->root->num_children; i++) {
1374 teid1 = LE32_TO_CPU(pi->root->children[i]->info.node_teid);
1375 ice_for_each_traffic_class(j) {
1376 teid2 = LE32_TO_CPU(buf->tc_node_teid[j]);
1377 if (teid1 == teid2)
1378 break;
1379 }
1380 if (j < ICE_MAX_TRAFFIC_CLASS)
1381 continue;
1382 /* TC is missing */
1383 pi->root->children[i]->in_use = false;
1384 }
1385 /* add the new TC nodes */
1386 ice_for_each_traffic_class(j) {
1387 teid2 = LE32_TO_CPU(buf->tc_node_teid[j]);
1388 if (teid2 == ICE_INVAL_TEID)
1389 continue;
1390 /* Is it already present in the tree ? */
1391 for (i = 0; i < pi->root->num_children; i++) {
1392 tc_node = pi->root->children[i];
1393 if (!tc_node)
1394 continue;
1395 teid1 = LE32_TO_CPU(tc_node->info.node_teid);
1396 if (teid1 == teid2) {
1397 tc_node->tc_num = j;
1398 tc_node->in_use = true;
1399 break;
1400 }
1401 }
1402 if (i < pi->root->num_children)
1403 continue;
1404 /* new TC */
1405 status = ice_sched_query_elem(pi->hw, teid2, &elem);
1406 if (!status)
1407 status = ice_sched_add_node(pi, 1, &elem.generic[0]);
1408 if (status)
1409 break;
1410 /* update the TC number */
1411 node = ice_sched_find_node_by_teid(pi->root, teid2);
1412 if (node)
1413 node->tc_num = j;
1414 }
1415 return status;
1416 }
1417
1418 /**
1419 * ice_query_port_ets - query port ETS configuration
1420 * @pi: port information structure
1421 * @buf: pointer to buffer
1422 * @buf_size: buffer size in bytes
1423 * @cd: pointer to command details structure or NULL
1424 *
1425 * query current port ETS configuration and update the
1426 * SW DB with the TC changes
1427 */
1428 enum ice_status
1429 ice_query_port_ets(struct ice_port_info *pi,
1430 struct ice_aqc_port_ets_elem *buf, u16 buf_size,
1431 struct ice_sq_cd *cd)
1432 {
1433 enum ice_status status;
1434
1435 ice_acquire_lock(&pi->sched_lock);
1436 status = ice_aq_query_port_ets(pi, buf, buf_size, cd);
1437 if (!status)
1438 status = ice_update_port_tc_tree_cfg(pi, buf);
1439 ice_release_lock(&pi->sched_lock);
1440 return status;
1441 }
Ceph