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 */
21 static int
ice_aq_get_lldp_mib(struct ice_hw * hw,u8 bridge_type,u8 mib_type,void * buf,u16 buf_size,u16 * local_len,u16 * remote_len,struct ice_sq_cd * cd)22 ice_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 |= (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 */
63 static int
ice_aq_cfg_lldp_mib_change(struct ice_hw * hw,bool ena_update,struct ice_sq_cd * cd)64 ice_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 else
77 cmd->command |= FIELD_PREP(ICE_AQ_LLDP_MIB_PENDING_M,
78 ICE_AQ_LLDP_MIB_PENDING_ENABLE);
79
80 return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
81 }
82
83 /**
84 * ice_aq_stop_lldp
85 * @hw: pointer to the HW struct
86 * @shutdown_lldp_agent: True if LLDP Agent needs to be Shutdown
87 * False if LLDP Agent needs to be Stopped
88 * @persist: True if Stop/Shutdown of LLDP Agent needs to be persistent across
89 * reboots
90 * @cd: pointer to command details structure or NULL
91 *
92 * Stop or Shutdown the embedded LLDP Agent (0x0A05)
93 */
94 int
ice_aq_stop_lldp(struct ice_hw * hw,bool shutdown_lldp_agent,bool persist,struct ice_sq_cd * cd)95 ice_aq_stop_lldp(struct ice_hw *hw, bool shutdown_lldp_agent, bool persist,
96 struct ice_sq_cd *cd)
97 {
98 struct ice_aqc_lldp_stop *cmd;
99 struct ice_aq_desc desc;
100
101 cmd = &desc.params.lldp_stop;
102
103 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_stop);
104
105 if (shutdown_lldp_agent)
106 cmd->command |= ICE_AQ_LLDP_AGENT_SHUTDOWN;
107
108 if (persist)
109 cmd->command |= ICE_AQ_LLDP_AGENT_PERSIST_DIS;
110
111 return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
112 }
113
114 /**
115 * ice_aq_start_lldp
116 * @hw: pointer to the HW struct
117 * @persist: True if Start of LLDP Agent needs to be persistent across reboots
118 * @cd: pointer to command details structure or NULL
119 *
120 * Start the embedded LLDP Agent on all ports. (0x0A06)
121 */
ice_aq_start_lldp(struct ice_hw * hw,bool persist,struct ice_sq_cd * cd)122 int ice_aq_start_lldp(struct ice_hw *hw, bool persist, struct ice_sq_cd *cd)
123 {
124 struct ice_aqc_lldp_start *cmd;
125 struct ice_aq_desc desc;
126
127 cmd = &desc.params.lldp_start;
128
129 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_start);
130
131 cmd->command = ICE_AQ_LLDP_AGENT_START;
132
133 if (persist)
134 cmd->command |= ICE_AQ_LLDP_AGENT_PERSIST_ENA;
135
136 return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
137 }
138
139 /**
140 * ice_get_dcbx_status
141 * @hw: pointer to the HW struct
142 *
143 * Get the DCBX status from the Firmware
144 */
ice_get_dcbx_status(struct ice_hw * hw)145 static u8 ice_get_dcbx_status(struct ice_hw *hw)
146 {
147 u32 reg;
148
149 reg = rd32(hw, PRTDCB_GENS);
150 return (u8)((reg & PRTDCB_GENS_DCBX_STATUS_M) >>
151 PRTDCB_GENS_DCBX_STATUS_S);
152 }
153
154 /**
155 * ice_parse_ieee_ets_common_tlv
156 * @buf: Data buffer to be parsed for ETS CFG/REC data
157 * @ets_cfg: Container to store parsed data
158 *
159 * Parses the common data of IEEE 802.1Qaz ETS CFG/REC TLV
160 */
161 static void
ice_parse_ieee_ets_common_tlv(u8 * buf,struct ice_dcb_ets_cfg * ets_cfg)162 ice_parse_ieee_ets_common_tlv(u8 *buf, struct ice_dcb_ets_cfg *ets_cfg)
163 {
164 u8 offset = 0;
165 int i;
166
167 /* Priority Assignment Table (4 octets)
168 * Octets:| 1 | 2 | 3 | 4 |
169 * -----------------------------------------
170 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
171 * -----------------------------------------
172 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
173 * -----------------------------------------
174 */
175 for (i = 0; i < 4; i++) {
176 ets_cfg->prio_table[i * 2] =
177 ((buf[offset] & ICE_IEEE_ETS_PRIO_1_M) >>
178 ICE_IEEE_ETS_PRIO_1_S);
179 ets_cfg->prio_table[i * 2 + 1] =
180 ((buf[offset] & ICE_IEEE_ETS_PRIO_0_M) >>
181 ICE_IEEE_ETS_PRIO_0_S);
182 offset++;
183 }
184
185 /* TC Bandwidth Table (8 octets)
186 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
187 * ---------------------------------
188 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
189 * ---------------------------------
190 *
191 * TSA Assignment Table (8 octets)
192 * Octets:| 9 | 10| 11| 12| 13| 14| 15| 16|
193 * ---------------------------------
194 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
195 * ---------------------------------
196 */
197 ice_for_each_traffic_class(i) {
198 ets_cfg->tcbwtable[i] = buf[offset];
199 ets_cfg->tsatable[i] = buf[ICE_MAX_TRAFFIC_CLASS + offset++];
200 }
201 }
202
203 /**
204 * ice_parse_ieee_etscfg_tlv
205 * @tlv: IEEE 802.1Qaz ETS CFG TLV
206 * @dcbcfg: Local store to update ETS CFG data
207 *
208 * Parses IEEE 802.1Qaz ETS CFG TLV
209 */
210 static void
ice_parse_ieee_etscfg_tlv(struct ice_lldp_org_tlv * tlv,struct ice_dcbx_cfg * dcbcfg)211 ice_parse_ieee_etscfg_tlv(struct ice_lldp_org_tlv *tlv,
212 struct ice_dcbx_cfg *dcbcfg)
213 {
214 struct ice_dcb_ets_cfg *etscfg;
215 u8 *buf = tlv->tlvinfo;
216
217 /* First Octet post subtype
218 * --------------------------
219 * |will-|CBS | Re- | Max |
220 * |ing | |served| TCs |
221 * --------------------------
222 * |1bit | 1bit|3 bits|3bits|
223 */
224 etscfg = &dcbcfg->etscfg;
225 etscfg->willing = ((buf[0] & ICE_IEEE_ETS_WILLING_M) >>
226 ICE_IEEE_ETS_WILLING_S);
227 etscfg->cbs = ((buf[0] & ICE_IEEE_ETS_CBS_M) >> ICE_IEEE_ETS_CBS_S);
228 etscfg->maxtcs = ((buf[0] & ICE_IEEE_ETS_MAXTC_M) >>
229 ICE_IEEE_ETS_MAXTC_S);
230
231 /* Begin parsing at Priority Assignment Table (offset 1 in buf) */
232 ice_parse_ieee_ets_common_tlv(&buf[1], etscfg);
233 }
234
235 /**
236 * ice_parse_ieee_etsrec_tlv
237 * @tlv: IEEE 802.1Qaz ETS REC TLV
238 * @dcbcfg: Local store to update ETS REC data
239 *
240 * Parses IEEE 802.1Qaz ETS REC TLV
241 */
242 static void
ice_parse_ieee_etsrec_tlv(struct ice_lldp_org_tlv * tlv,struct ice_dcbx_cfg * dcbcfg)243 ice_parse_ieee_etsrec_tlv(struct ice_lldp_org_tlv *tlv,
244 struct ice_dcbx_cfg *dcbcfg)
245 {
246 u8 *buf = tlv->tlvinfo;
247
248 /* Begin parsing at Priority Assignment Table (offset 1 in buf) */
249 ice_parse_ieee_ets_common_tlv(&buf[1], &dcbcfg->etsrec);
250 }
251
252 /**
253 * ice_parse_ieee_pfccfg_tlv
254 * @tlv: IEEE 802.1Qaz PFC CFG TLV
255 * @dcbcfg: Local store to update PFC CFG data
256 *
257 * Parses IEEE 802.1Qaz PFC CFG TLV
258 */
259 static void
ice_parse_ieee_pfccfg_tlv(struct ice_lldp_org_tlv * tlv,struct ice_dcbx_cfg * dcbcfg)260 ice_parse_ieee_pfccfg_tlv(struct ice_lldp_org_tlv *tlv,
261 struct ice_dcbx_cfg *dcbcfg)
262 {
263 u8 *buf = tlv->tlvinfo;
264
265 /* ----------------------------------------
266 * |will-|MBC | Re- | PFC | PFC Enable |
267 * |ing | |served| cap | |
268 * -----------------------------------------
269 * |1bit | 1bit|2 bits|4bits| 1 octet |
270 */
271 dcbcfg->pfc.willing = ((buf[0] & ICE_IEEE_PFC_WILLING_M) >>
272 ICE_IEEE_PFC_WILLING_S);
273 dcbcfg->pfc.mbc = ((buf[0] & ICE_IEEE_PFC_MBC_M) >> ICE_IEEE_PFC_MBC_S);
274 dcbcfg->pfc.pfccap = ((buf[0] & ICE_IEEE_PFC_CAP_M) >>
275 ICE_IEEE_PFC_CAP_S);
276 dcbcfg->pfc.pfcena = buf[1];
277 }
278
279 /**
280 * ice_parse_ieee_app_tlv
281 * @tlv: IEEE 802.1Qaz APP TLV
282 * @dcbcfg: Local store to update APP PRIO data
283 *
284 * Parses IEEE 802.1Qaz APP PRIO TLV
285 */
286 static void
ice_parse_ieee_app_tlv(struct ice_lldp_org_tlv * tlv,struct ice_dcbx_cfg * dcbcfg)287 ice_parse_ieee_app_tlv(struct ice_lldp_org_tlv *tlv,
288 struct ice_dcbx_cfg *dcbcfg)
289 {
290 u16 offset = 0;
291 u16 typelen;
292 int i = 0;
293 u16 len;
294 u8 *buf;
295
296 typelen = ntohs(tlv->typelen);
297 len = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S);
298 buf = tlv->tlvinfo;
299
300 /* Removing sizeof(ouisubtype) and reserved byte from len.
301 * Remaining len div 3 is number of APP TLVs.
302 */
303 len -= (sizeof(tlv->ouisubtype) + 1);
304
305 /* Move offset to App Priority Table */
306 offset++;
307
308 /* Application Priority Table (3 octets)
309 * Octets:| 1 | 2 | 3 |
310 * -----------------------------------------
311 * |Priority|Rsrvd| Sel | Protocol ID |
312 * -----------------------------------------
313 * Bits:|23 21|20 19|18 16|15 0|
314 * -----------------------------------------
315 */
316 while (offset < len) {
317 dcbcfg->app[i].priority = ((buf[offset] &
318 ICE_IEEE_APP_PRIO_M) >>
319 ICE_IEEE_APP_PRIO_S);
320 dcbcfg->app[i].selector = ((buf[offset] &
321 ICE_IEEE_APP_SEL_M) >>
322 ICE_IEEE_APP_SEL_S);
323 dcbcfg->app[i].prot_id = (buf[offset + 1] << 0x8) |
324 buf[offset + 2];
325 /* Move to next app */
326 offset += 3;
327 i++;
328 if (i >= ICE_DCBX_MAX_APPS)
329 break;
330 }
331
332 dcbcfg->numapps = i;
333 }
334
335 /**
336 * ice_parse_ieee_tlv
337 * @tlv: IEEE 802.1Qaz TLV
338 * @dcbcfg: Local store to update ETS REC data
339 *
340 * Get the TLV subtype and send it to parsing function
341 * based on the subtype value
342 */
343 static void
ice_parse_ieee_tlv(struct ice_lldp_org_tlv * tlv,struct ice_dcbx_cfg * dcbcfg)344 ice_parse_ieee_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
345 {
346 u32 ouisubtype;
347 u8 subtype;
348
349 ouisubtype = ntohl(tlv->ouisubtype);
350 subtype = (u8)((ouisubtype & ICE_LLDP_TLV_SUBTYPE_M) >>
351 ICE_LLDP_TLV_SUBTYPE_S);
352 switch (subtype) {
353 case ICE_IEEE_SUBTYPE_ETS_CFG:
354 ice_parse_ieee_etscfg_tlv(tlv, dcbcfg);
355 break;
356 case ICE_IEEE_SUBTYPE_ETS_REC:
357 ice_parse_ieee_etsrec_tlv(tlv, dcbcfg);
358 break;
359 case ICE_IEEE_SUBTYPE_PFC_CFG:
360 ice_parse_ieee_pfccfg_tlv(tlv, dcbcfg);
361 break;
362 case ICE_IEEE_SUBTYPE_APP_PRI:
363 ice_parse_ieee_app_tlv(tlv, dcbcfg);
364 break;
365 default:
366 break;
367 }
368 }
369
370 /**
371 * ice_parse_cee_pgcfg_tlv
372 * @tlv: CEE DCBX PG CFG TLV
373 * @dcbcfg: Local store to update ETS CFG data
374 *
375 * Parses CEE DCBX PG CFG TLV
376 */
377 static void
ice_parse_cee_pgcfg_tlv(struct ice_cee_feat_tlv * tlv,struct ice_dcbx_cfg * dcbcfg)378 ice_parse_cee_pgcfg_tlv(struct ice_cee_feat_tlv *tlv,
379 struct ice_dcbx_cfg *dcbcfg)
380 {
381 struct ice_dcb_ets_cfg *etscfg;
382 u8 *buf = tlv->tlvinfo;
383 u16 offset = 0;
384 int i;
385
386 etscfg = &dcbcfg->etscfg;
387
388 if (tlv->en_will_err & ICE_CEE_FEAT_TLV_WILLING_M)
389 etscfg->willing = 1;
390
391 etscfg->cbs = 0;
392 /* Priority Group Table (4 octets)
393 * Octets:| 1 | 2 | 3 | 4 |
394 * -----------------------------------------
395 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
396 * -----------------------------------------
397 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
398 * -----------------------------------------
399 */
400 for (i = 0; i < 4; i++) {
401 etscfg->prio_table[i * 2] =
402 ((buf[offset] & ICE_CEE_PGID_PRIO_1_M) >>
403 ICE_CEE_PGID_PRIO_1_S);
404 etscfg->prio_table[i * 2 + 1] =
405 ((buf[offset] & ICE_CEE_PGID_PRIO_0_M) >>
406 ICE_CEE_PGID_PRIO_0_S);
407 offset++;
408 }
409
410 /* PG Percentage Table (8 octets)
411 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
412 * ---------------------------------
413 * |pg0|pg1|pg2|pg3|pg4|pg5|pg6|pg7|
414 * ---------------------------------
415 */
416 ice_for_each_traffic_class(i) {
417 etscfg->tcbwtable[i] = buf[offset++];
418
419 if (etscfg->prio_table[i] == ICE_CEE_PGID_STRICT)
420 dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_STRICT;
421 else
422 dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_ETS;
423 }
424
425 /* Number of TCs supported (1 octet) */
426 etscfg->maxtcs = buf[offset];
427 }
428
429 /**
430 * ice_parse_cee_pfccfg_tlv
431 * @tlv: CEE DCBX PFC CFG TLV
432 * @dcbcfg: Local store to update PFC CFG data
433 *
434 * Parses CEE DCBX PFC CFG TLV
435 */
436 static void
ice_parse_cee_pfccfg_tlv(struct ice_cee_feat_tlv * tlv,struct ice_dcbx_cfg * dcbcfg)437 ice_parse_cee_pfccfg_tlv(struct ice_cee_feat_tlv *tlv,
438 struct ice_dcbx_cfg *dcbcfg)
439 {
440 u8 *buf = tlv->tlvinfo;
441
442 if (tlv->en_will_err & ICE_CEE_FEAT_TLV_WILLING_M)
443 dcbcfg->pfc.willing = 1;
444
445 /* ------------------------
446 * | PFC Enable | PFC TCs |
447 * ------------------------
448 * | 1 octet | 1 octet |
449 */
450 dcbcfg->pfc.pfcena = buf[0];
451 dcbcfg->pfc.pfccap = buf[1];
452 }
453
454 /**
455 * ice_parse_cee_app_tlv
456 * @tlv: CEE DCBX APP TLV
457 * @dcbcfg: Local store to update APP PRIO data
458 *
459 * Parses CEE DCBX APP PRIO TLV
460 */
461 static void
ice_parse_cee_app_tlv(struct ice_cee_feat_tlv * tlv,struct ice_dcbx_cfg * dcbcfg)462 ice_parse_cee_app_tlv(struct ice_cee_feat_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
463 {
464 u16 len, typelen, offset = 0;
465 struct ice_cee_app_prio *app;
466 u8 i;
467
468 typelen = ntohs(tlv->hdr.typelen);
469 len = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S);
470
471 dcbcfg->numapps = len / sizeof(*app);
472 if (!dcbcfg->numapps)
473 return;
474 if (dcbcfg->numapps > ICE_DCBX_MAX_APPS)
475 dcbcfg->numapps = ICE_DCBX_MAX_APPS;
476
477 for (i = 0; i < dcbcfg->numapps; i++) {
478 u8 up, selector;
479
480 app = (struct ice_cee_app_prio *)(tlv->tlvinfo + offset);
481 for (up = 0; up < ICE_MAX_USER_PRIORITY; up++)
482 if (app->prio_map & BIT(up))
483 break;
484
485 dcbcfg->app[i].priority = up;
486
487 /* Get Selector from lower 2 bits, and convert to IEEE */
488 selector = (app->upper_oui_sel & ICE_CEE_APP_SELECTOR_M);
489 switch (selector) {
490 case ICE_CEE_APP_SEL_ETHTYPE:
491 dcbcfg->app[i].selector = ICE_APP_SEL_ETHTYPE;
492 break;
493 case ICE_CEE_APP_SEL_TCPIP:
494 dcbcfg->app[i].selector = ICE_APP_SEL_TCPIP;
495 break;
496 default:
497 /* Keep selector as it is for unknown types */
498 dcbcfg->app[i].selector = selector;
499 }
500
501 dcbcfg->app[i].prot_id = ntohs(app->protocol);
502 /* Move to next app */
503 offset += sizeof(*app);
504 }
505 }
506
507 /**
508 * ice_parse_cee_tlv
509 * @tlv: CEE DCBX TLV
510 * @dcbcfg: Local store to update DCBX config data
511 *
512 * Get the TLV subtype and send it to parsing function
513 * based on the subtype value
514 */
515 static void
ice_parse_cee_tlv(struct ice_lldp_org_tlv * tlv,struct ice_dcbx_cfg * dcbcfg)516 ice_parse_cee_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
517 {
518 struct ice_cee_feat_tlv *sub_tlv;
519 u8 subtype, feat_tlv_count = 0;
520 u16 len, tlvlen, typelen;
521 u32 ouisubtype;
522
523 ouisubtype = ntohl(tlv->ouisubtype);
524 subtype = (u8)((ouisubtype & ICE_LLDP_TLV_SUBTYPE_M) >>
525 ICE_LLDP_TLV_SUBTYPE_S);
526 /* Return if not CEE DCBX */
527 if (subtype != ICE_CEE_DCBX_TYPE)
528 return;
529
530 typelen = ntohs(tlv->typelen);
531 tlvlen = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S);
532 len = sizeof(tlv->typelen) + sizeof(ouisubtype) +
533 sizeof(struct ice_cee_ctrl_tlv);
534 /* Return if no CEE DCBX Feature TLVs */
535 if (tlvlen <= len)
536 return;
537
538 sub_tlv = (struct ice_cee_feat_tlv *)((char *)tlv + len);
539 while (feat_tlv_count < ICE_CEE_MAX_FEAT_TYPE) {
540 u16 sublen;
541
542 typelen = ntohs(sub_tlv->hdr.typelen);
543 sublen = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S);
544 subtype = (u8)((typelen & ICE_LLDP_TLV_TYPE_M) >>
545 ICE_LLDP_TLV_TYPE_S);
546 switch (subtype) {
547 case ICE_CEE_SUBTYPE_PG_CFG:
548 ice_parse_cee_pgcfg_tlv(sub_tlv, dcbcfg);
549 break;
550 case ICE_CEE_SUBTYPE_PFC_CFG:
551 ice_parse_cee_pfccfg_tlv(sub_tlv, dcbcfg);
552 break;
553 case ICE_CEE_SUBTYPE_APP_PRI:
554 ice_parse_cee_app_tlv(sub_tlv, dcbcfg);
555 break;
556 default:
557 return; /* Invalid Sub-type return */
558 }
559 feat_tlv_count++;
560 /* Move to next sub TLV */
561 sub_tlv = (struct ice_cee_feat_tlv *)
562 ((char *)sub_tlv + sizeof(sub_tlv->hdr.typelen) +
563 sublen);
564 }
565 }
566
567 /**
568 * ice_parse_org_tlv
569 * @tlv: Organization specific TLV
570 * @dcbcfg: Local store to update ETS REC data
571 *
572 * Currently IEEE 802.1Qaz and CEE DCBX TLV are supported, others
573 * will be returned
574 */
575 static void
ice_parse_org_tlv(struct ice_lldp_org_tlv * tlv,struct ice_dcbx_cfg * dcbcfg)576 ice_parse_org_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
577 {
578 u32 ouisubtype;
579 u32 oui;
580
581 ouisubtype = ntohl(tlv->ouisubtype);
582 oui = ((ouisubtype & ICE_LLDP_TLV_OUI_M) >> ICE_LLDP_TLV_OUI_S);
583 switch (oui) {
584 case ICE_IEEE_8021QAZ_OUI:
585 ice_parse_ieee_tlv(tlv, dcbcfg);
586 break;
587 case ICE_CEE_DCBX_OUI:
588 ice_parse_cee_tlv(tlv, dcbcfg);
589 break;
590 default:
591 break; /* Other OUIs not supported */
592 }
593 }
594
595 /**
596 * ice_lldp_to_dcb_cfg
597 * @lldpmib: LLDPDU to be parsed
598 * @dcbcfg: store for LLDPDU data
599 *
600 * Parse DCB configuration from the LLDPDU
601 */
ice_lldp_to_dcb_cfg(u8 * lldpmib,struct ice_dcbx_cfg * dcbcfg)602 static int ice_lldp_to_dcb_cfg(u8 *lldpmib, struct ice_dcbx_cfg *dcbcfg)
603 {
604 struct ice_lldp_org_tlv *tlv;
605 u16 offset = 0;
606 int ret = 0;
607 u16 typelen;
608 u16 type;
609 u16 len;
610
611 if (!lldpmib || !dcbcfg)
612 return -EINVAL;
613
614 /* set to the start of LLDPDU */
615 lldpmib += ETH_HLEN;
616 tlv = (struct ice_lldp_org_tlv *)lldpmib;
617 while (1) {
618 typelen = ntohs(tlv->typelen);
619 type = ((typelen & ICE_LLDP_TLV_TYPE_M) >> ICE_LLDP_TLV_TYPE_S);
620 len = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S);
621 offset += sizeof(typelen) + len;
622
623 /* END TLV or beyond LLDPDU size */
624 if (type == ICE_TLV_TYPE_END || offset > ICE_LLDPDU_SIZE)
625 break;
626
627 switch (type) {
628 case ICE_TLV_TYPE_ORG:
629 ice_parse_org_tlv(tlv, dcbcfg);
630 break;
631 default:
632 break;
633 }
634
635 /* Move to next TLV */
636 tlv = (struct ice_lldp_org_tlv *)
637 ((char *)tlv + sizeof(tlv->typelen) + len);
638 }
639
640 return ret;
641 }
642
643 /**
644 * ice_aq_get_dcb_cfg
645 * @hw: pointer to the HW struct
646 * @mib_type: MIB type for the query
647 * @bridgetype: bridge type for the query (remote)
648 * @dcbcfg: store for LLDPDU data
649 *
650 * Query DCB configuration from the firmware
651 */
652 int
ice_aq_get_dcb_cfg(struct ice_hw * hw,u8 mib_type,u8 bridgetype,struct ice_dcbx_cfg * dcbcfg)653 ice_aq_get_dcb_cfg(struct ice_hw *hw, u8 mib_type, u8 bridgetype,
654 struct ice_dcbx_cfg *dcbcfg)
655 {
656 u8 *lldpmib;
657 int ret;
658
659 /* Allocate the LLDPDU */
660 lldpmib = devm_kzalloc(ice_hw_to_dev(hw), ICE_LLDPDU_SIZE, GFP_KERNEL);
661 if (!lldpmib)
662 return -ENOMEM;
663
664 ret = ice_aq_get_lldp_mib(hw, bridgetype, mib_type, (void *)lldpmib,
665 ICE_LLDPDU_SIZE, NULL, NULL, NULL);
666
667 if (!ret)
668 /* Parse LLDP MIB to get DCB configuration */
669 ret = ice_lldp_to_dcb_cfg(lldpmib, dcbcfg);
670
671 devm_kfree(ice_hw_to_dev(hw), lldpmib);
672
673 return ret;
674 }
675
676 /**
677 * ice_aq_start_stop_dcbx - Start/Stop DCBX service in FW
678 * @hw: pointer to the HW struct
679 * @start_dcbx_agent: True if DCBX Agent needs to be started
680 * False if DCBX Agent needs to be stopped
681 * @dcbx_agent_status: FW indicates back the DCBX agent status
682 * True if DCBX Agent is active
683 * False if DCBX Agent is stopped
684 * @cd: pointer to command details structure or NULL
685 *
686 * Start/Stop the embedded dcbx Agent. In case that this wrapper function
687 * returns 0, caller will need to check if FW returns back the same
688 * value as stated in dcbx_agent_status, and react accordingly. (0x0A09)
689 */
690 int
ice_aq_start_stop_dcbx(struct ice_hw * hw,bool start_dcbx_agent,bool * dcbx_agent_status,struct ice_sq_cd * cd)691 ice_aq_start_stop_dcbx(struct ice_hw *hw, bool start_dcbx_agent,
692 bool *dcbx_agent_status, struct ice_sq_cd *cd)
693 {
694 struct ice_aqc_lldp_stop_start_specific_agent *cmd;
695 struct ice_aq_desc desc;
696 u16 opcode;
697 int status;
698
699 cmd = &desc.params.lldp_agent_ctrl;
700
701 opcode = ice_aqc_opc_lldp_stop_start_specific_agent;
702
703 ice_fill_dflt_direct_cmd_desc(&desc, opcode);
704
705 if (start_dcbx_agent)
706 cmd->command = ICE_AQC_START_STOP_AGENT_START_DCBX;
707
708 status = ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
709
710 *dcbx_agent_status = false;
711
712 if (!status &&
713 cmd->command == ICE_AQC_START_STOP_AGENT_START_DCBX)
714 *dcbx_agent_status = true;
715
716 return status;
717 }
718
719 /**
720 * ice_aq_get_cee_dcb_cfg
721 * @hw: pointer to the HW struct
722 * @buff: response buffer that stores CEE operational configuration
723 * @cd: pointer to command details structure or NULL
724 *
725 * Get CEE DCBX mode operational configuration from firmware (0x0A07)
726 */
727 static int
ice_aq_get_cee_dcb_cfg(struct ice_hw * hw,struct ice_aqc_get_cee_dcb_cfg_resp * buff,struct ice_sq_cd * cd)728 ice_aq_get_cee_dcb_cfg(struct ice_hw *hw,
729 struct ice_aqc_get_cee_dcb_cfg_resp *buff,
730 struct ice_sq_cd *cd)
731 {
732 struct ice_aq_desc desc;
733
734 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_cee_dcb_cfg);
735
736 return ice_aq_send_cmd(hw, &desc, (void *)buff, sizeof(*buff), cd);
737 }
738
739 /**
740 * ice_aq_set_pfc_mode - Set PFC mode
741 * @hw: pointer to the HW struct
742 * @pfc_mode: value of PFC mode to set
743 * @cd: pointer to command details structure or NULL
744 *
745 * This AQ call configures the PFC mode to DSCP-based PFC mode or
746 * VLAN-based PFC (0x0303)
747 */
ice_aq_set_pfc_mode(struct ice_hw * hw,u8 pfc_mode,struct ice_sq_cd * cd)748 int ice_aq_set_pfc_mode(struct ice_hw *hw, u8 pfc_mode, struct ice_sq_cd *cd)
749 {
750 struct ice_aqc_set_query_pfc_mode *cmd;
751 struct ice_aq_desc desc;
752 int status;
753
754 if (pfc_mode > ICE_AQC_PFC_DSCP_BASED_PFC)
755 return -EINVAL;
756
757 cmd = &desc.params.set_query_pfc_mode;
758
759 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_set_pfc_mode);
760
761 cmd->pfc_mode = pfc_mode;
762
763 status = ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
764 if (status)
765 return status;
766
767 /* FW will write the PFC mode set back into cmd->pfc_mode, but if DCB is
768 * disabled, FW will write back 0 to cmd->pfc_mode. After the AQ has
769 * been executed, check if cmd->pfc_mode is what was requested. If not,
770 * return an error.
771 */
772 if (cmd->pfc_mode != pfc_mode)
773 return -EOPNOTSUPP;
774
775 return 0;
776 }
777
778 /**
779 * ice_cee_to_dcb_cfg
780 * @cee_cfg: pointer to CEE configuration struct
781 * @pi: port information structure
782 *
783 * Convert CEE configuration from firmware to DCB configuration
784 */
785 static void
ice_cee_to_dcb_cfg(struct ice_aqc_get_cee_dcb_cfg_resp * cee_cfg,struct ice_port_info * pi)786 ice_cee_to_dcb_cfg(struct ice_aqc_get_cee_dcb_cfg_resp *cee_cfg,
787 struct ice_port_info *pi)
788 {
789 u32 status, tlv_status = le32_to_cpu(cee_cfg->tlv_status);
790 u32 ice_aqc_cee_status_mask, ice_aqc_cee_status_shift, j;
791 u8 i, err, sync, oper, app_index, ice_app_sel_type;
792 u16 app_prio = le16_to_cpu(cee_cfg->oper_app_prio);
793 u16 ice_aqc_cee_app_mask, ice_aqc_cee_app_shift;
794 struct ice_dcbx_cfg *cmp_dcbcfg, *dcbcfg;
795 u16 ice_app_prot_id_type;
796
797 dcbcfg = &pi->qos_cfg.local_dcbx_cfg;
798 dcbcfg->dcbx_mode = ICE_DCBX_MODE_CEE;
799 dcbcfg->tlv_status = tlv_status;
800
801 /* CEE PG data */
802 dcbcfg->etscfg.maxtcs = cee_cfg->oper_num_tc;
803
804 /* Note that the FW creates the oper_prio_tc nibbles reversed
805 * from those in the CEE Priority Group sub-TLV.
806 */
807 for (i = 0; i < ICE_MAX_TRAFFIC_CLASS / 2; i++) {
808 dcbcfg->etscfg.prio_table[i * 2] =
809 ((cee_cfg->oper_prio_tc[i] & ICE_CEE_PGID_PRIO_0_M) >>
810 ICE_CEE_PGID_PRIO_0_S);
811 dcbcfg->etscfg.prio_table[i * 2 + 1] =
812 ((cee_cfg->oper_prio_tc[i] & ICE_CEE_PGID_PRIO_1_M) >>
813 ICE_CEE_PGID_PRIO_1_S);
814 }
815
816 ice_for_each_traffic_class(i) {
817 dcbcfg->etscfg.tcbwtable[i] = cee_cfg->oper_tc_bw[i];
818
819 if (dcbcfg->etscfg.prio_table[i] == ICE_CEE_PGID_STRICT) {
820 /* Map it to next empty TC */
821 dcbcfg->etscfg.prio_table[i] = cee_cfg->oper_num_tc - 1;
822 dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_STRICT;
823 } else {
824 dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_ETS;
825 }
826 }
827
828 /* CEE PFC data */
829 dcbcfg->pfc.pfcena = cee_cfg->oper_pfc_en;
830 dcbcfg->pfc.pfccap = ICE_MAX_TRAFFIC_CLASS;
831
832 /* CEE APP TLV data */
833 if (dcbcfg->app_mode == ICE_DCBX_APPS_NON_WILLING)
834 cmp_dcbcfg = &pi->qos_cfg.desired_dcbx_cfg;
835 else
836 cmp_dcbcfg = &pi->qos_cfg.remote_dcbx_cfg;
837
838 app_index = 0;
839 for (i = 0; i < 3; i++) {
840 if (i == 0) {
841 /* FCoE APP */
842 ice_aqc_cee_status_mask = ICE_AQC_CEE_FCOE_STATUS_M;
843 ice_aqc_cee_status_shift = ICE_AQC_CEE_FCOE_STATUS_S;
844 ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_FCOE_M;
845 ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_FCOE_S;
846 ice_app_sel_type = ICE_APP_SEL_ETHTYPE;
847 ice_app_prot_id_type = ETH_P_FCOE;
848 } else if (i == 1) {
849 /* iSCSI APP */
850 ice_aqc_cee_status_mask = ICE_AQC_CEE_ISCSI_STATUS_M;
851 ice_aqc_cee_status_shift = ICE_AQC_CEE_ISCSI_STATUS_S;
852 ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_ISCSI_M;
853 ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_ISCSI_S;
854 ice_app_sel_type = ICE_APP_SEL_TCPIP;
855 ice_app_prot_id_type = ISCSI_LISTEN_PORT;
856
857 for (j = 0; j < cmp_dcbcfg->numapps; j++) {
858 u16 prot_id = cmp_dcbcfg->app[j].prot_id;
859 u8 sel = cmp_dcbcfg->app[j].selector;
860
861 if (sel == ICE_APP_SEL_TCPIP &&
862 (prot_id == ISCSI_LISTEN_PORT ||
863 prot_id == ICE_APP_PROT_ID_ISCSI_860)) {
864 ice_app_prot_id_type = prot_id;
865 break;
866 }
867 }
868 } else {
869 /* FIP APP */
870 ice_aqc_cee_status_mask = ICE_AQC_CEE_FIP_STATUS_M;
871 ice_aqc_cee_status_shift = ICE_AQC_CEE_FIP_STATUS_S;
872 ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_FIP_M;
873 ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_FIP_S;
874 ice_app_sel_type = ICE_APP_SEL_ETHTYPE;
875 ice_app_prot_id_type = ETH_P_FIP;
876 }
877
878 status = (tlv_status & ice_aqc_cee_status_mask) >>
879 ice_aqc_cee_status_shift;
880 err = (status & ICE_TLV_STATUS_ERR) ? 1 : 0;
881 sync = (status & ICE_TLV_STATUS_SYNC) ? 1 : 0;
882 oper = (status & ICE_TLV_STATUS_OPER) ? 1 : 0;
883 /* Add FCoE/iSCSI/FIP APP if Error is False and
884 * Oper/Sync is True
885 */
886 if (!err && sync && oper) {
887 dcbcfg->app[app_index].priority =
888 (app_prio & ice_aqc_cee_app_mask) >>
889 ice_aqc_cee_app_shift;
890 dcbcfg->app[app_index].selector = ice_app_sel_type;
891 dcbcfg->app[app_index].prot_id = ice_app_prot_id_type;
892 app_index++;
893 }
894 }
895
896 dcbcfg->numapps = app_index;
897 }
898
899 /**
900 * ice_get_ieee_or_cee_dcb_cfg
901 * @pi: port information structure
902 * @dcbx_mode: mode of DCBX (IEEE or CEE)
903 *
904 * Get IEEE or CEE mode DCB configuration from the Firmware
905 */
ice_get_ieee_or_cee_dcb_cfg(struct ice_port_info * pi,u8 dcbx_mode)906 static int ice_get_ieee_or_cee_dcb_cfg(struct ice_port_info *pi, u8 dcbx_mode)
907 {
908 struct ice_dcbx_cfg *dcbx_cfg = NULL;
909 int ret;
910
911 if (!pi)
912 return -EINVAL;
913
914 if (dcbx_mode == ICE_DCBX_MODE_IEEE)
915 dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg;
916 else if (dcbx_mode == ICE_DCBX_MODE_CEE)
917 dcbx_cfg = &pi->qos_cfg.desired_dcbx_cfg;
918
919 /* Get Local DCB Config in case of ICE_DCBX_MODE_IEEE
920 * or get CEE DCB Desired Config in case of ICE_DCBX_MODE_CEE
921 */
922 ret = ice_aq_get_dcb_cfg(pi->hw, ICE_AQ_LLDP_MIB_LOCAL,
923 ICE_AQ_LLDP_BRID_TYPE_NEAREST_BRID, dcbx_cfg);
924 if (ret)
925 goto out;
926
927 /* Get Remote DCB Config */
928 dcbx_cfg = &pi->qos_cfg.remote_dcbx_cfg;
929 ret = ice_aq_get_dcb_cfg(pi->hw, ICE_AQ_LLDP_MIB_REMOTE,
930 ICE_AQ_LLDP_BRID_TYPE_NEAREST_BRID, dcbx_cfg);
931 /* Don't treat ENOENT as an error for Remote MIBs */
932 if (pi->hw->adminq.sq_last_status == ICE_AQ_RC_ENOENT)
933 ret = 0;
934
935 out:
936 return ret;
937 }
938
939 /**
940 * ice_get_dcb_cfg
941 * @pi: port information structure
942 *
943 * Get DCB configuration from the Firmware
944 */
ice_get_dcb_cfg(struct ice_port_info * pi)945 int ice_get_dcb_cfg(struct ice_port_info *pi)
946 {
947 struct ice_aqc_get_cee_dcb_cfg_resp cee_cfg;
948 struct ice_dcbx_cfg *dcbx_cfg;
949 int ret;
950
951 if (!pi)
952 return -EINVAL;
953
954 ret = ice_aq_get_cee_dcb_cfg(pi->hw, &cee_cfg, NULL);
955 if (!ret) {
956 /* CEE mode */
957 ret = ice_get_ieee_or_cee_dcb_cfg(pi, ICE_DCBX_MODE_CEE);
958 ice_cee_to_dcb_cfg(&cee_cfg, pi);
959 } else if (pi->hw->adminq.sq_last_status == ICE_AQ_RC_ENOENT) {
960 /* CEE mode not enabled try querying IEEE data */
961 dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg;
962 dcbx_cfg->dcbx_mode = ICE_DCBX_MODE_IEEE;
963 ret = ice_get_ieee_or_cee_dcb_cfg(pi, ICE_DCBX_MODE_IEEE);
964 }
965
966 return ret;
967 }
968
969 /**
970 * ice_get_dcb_cfg_from_mib_change
971 * @pi: port information structure
972 * @event: pointer to the admin queue receive event
973 *
974 * Set DCB configuration from received MIB Change event
975 */
ice_get_dcb_cfg_from_mib_change(struct ice_port_info * pi,struct ice_rq_event_info * event)976 void ice_get_dcb_cfg_from_mib_change(struct ice_port_info *pi,
977 struct ice_rq_event_info *event)
978 {
979 struct ice_dcbx_cfg *dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg;
980 struct ice_aqc_lldp_get_mib *mib;
981 u8 change_type, dcbx_mode;
982
983 mib = (struct ice_aqc_lldp_get_mib *)&event->desc.params.raw;
984
985 change_type = FIELD_GET(ICE_AQ_LLDP_MIB_TYPE_M, mib->type);
986 if (change_type == ICE_AQ_LLDP_MIB_REMOTE)
987 dcbx_cfg = &pi->qos_cfg.remote_dcbx_cfg;
988
989 dcbx_mode = FIELD_GET(ICE_AQ_LLDP_DCBX_M, mib->type);
990
991 switch (dcbx_mode) {
992 case ICE_AQ_LLDP_DCBX_IEEE:
993 dcbx_cfg->dcbx_mode = ICE_DCBX_MODE_IEEE;
994 ice_lldp_to_dcb_cfg(event->msg_buf, dcbx_cfg);
995 break;
996
997 case ICE_AQ_LLDP_DCBX_CEE:
998 pi->qos_cfg.desired_dcbx_cfg = pi->qos_cfg.local_dcbx_cfg;
999 ice_cee_to_dcb_cfg((struct ice_aqc_get_cee_dcb_cfg_resp *)
1000 event->msg_buf, pi);
1001 break;
1002 }
1003 }
1004
1005 /**
1006 * ice_init_dcb
1007 * @hw: pointer to the HW struct
1008 * @enable_mib_change: enable MIB change event
1009 *
1010 * Update DCB configuration from the Firmware
1011 */
ice_init_dcb(struct ice_hw * hw,bool enable_mib_change)1012 int ice_init_dcb(struct ice_hw *hw, bool enable_mib_change)
1013 {
1014 struct ice_qos_cfg *qos_cfg = &hw->port_info->qos_cfg;
1015 int ret = 0;
1016
1017 if (!hw->func_caps.common_cap.dcb)
1018 return -EOPNOTSUPP;
1019
1020 qos_cfg->is_sw_lldp = true;
1021
1022 /* Get DCBX status */
1023 qos_cfg->dcbx_status = ice_get_dcbx_status(hw);
1024
1025 if (qos_cfg->dcbx_status == ICE_DCBX_STATUS_DONE ||
1026 qos_cfg->dcbx_status == ICE_DCBX_STATUS_IN_PROGRESS ||
1027 qos_cfg->dcbx_status == ICE_DCBX_STATUS_NOT_STARTED) {
1028 /* Get current DCBX configuration */
1029 ret = ice_get_dcb_cfg(hw->port_info);
1030 if (ret)
1031 return ret;
1032 qos_cfg->is_sw_lldp = false;
1033 } else if (qos_cfg->dcbx_status == ICE_DCBX_STATUS_DIS) {
1034 return -EBUSY;
1035 }
1036
1037 /* Configure the LLDP MIB change event */
1038 if (enable_mib_change) {
1039 ret = ice_aq_cfg_lldp_mib_change(hw, true, NULL);
1040 if (ret)
1041 qos_cfg->is_sw_lldp = true;
1042 }
1043
1044 return ret;
1045 }
1046
1047 /**
1048 * ice_cfg_lldp_mib_change
1049 * @hw: pointer to the HW struct
1050 * @ena_mib: enable/disable MIB change event
1051 *
1052 * Configure (disable/enable) MIB
1053 */
ice_cfg_lldp_mib_change(struct ice_hw * hw,bool ena_mib)1054 int ice_cfg_lldp_mib_change(struct ice_hw *hw, bool ena_mib)
1055 {
1056 struct ice_qos_cfg *qos_cfg = &hw->port_info->qos_cfg;
1057 int ret;
1058
1059 if (!hw->func_caps.common_cap.dcb)
1060 return -EOPNOTSUPP;
1061
1062 /* Get DCBX status */
1063 qos_cfg->dcbx_status = ice_get_dcbx_status(hw);
1064
1065 if (qos_cfg->dcbx_status == ICE_DCBX_STATUS_DIS)
1066 return -EBUSY;
1067
1068 ret = ice_aq_cfg_lldp_mib_change(hw, ena_mib, NULL);
1069 if (!ret)
1070 qos_cfg->is_sw_lldp = !ena_mib;
1071
1072 return ret;
1073 }
1074
1075 /**
1076 * ice_add_ieee_ets_common_tlv
1077 * @buf: Data buffer to be populated with ice_dcb_ets_cfg data
1078 * @ets_cfg: Container for ice_dcb_ets_cfg data
1079 *
1080 * Populate the TLV buffer with ice_dcb_ets_cfg data
1081 */
1082 static void
ice_add_ieee_ets_common_tlv(u8 * buf,struct ice_dcb_ets_cfg * ets_cfg)1083 ice_add_ieee_ets_common_tlv(u8 *buf, struct ice_dcb_ets_cfg *ets_cfg)
1084 {
1085 u8 priority0, priority1;
1086 u8 offset = 0;
1087 int i;
1088
1089 /* Priority Assignment Table (4 octets)
1090 * Octets:| 1 | 2 | 3 | 4 |
1091 * -----------------------------------------
1092 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
1093 * -----------------------------------------
1094 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
1095 * -----------------------------------------
1096 */
1097 for (i = 0; i < ICE_MAX_TRAFFIC_CLASS / 2; i++) {
1098 priority0 = ets_cfg->prio_table[i * 2] & 0xF;
1099 priority1 = ets_cfg->prio_table[i * 2 + 1] & 0xF;
1100 buf[offset] = (priority0 << ICE_IEEE_ETS_PRIO_1_S) | priority1;
1101 offset++;
1102 }
1103
1104 /* TC Bandwidth Table (8 octets)
1105 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
1106 * ---------------------------------
1107 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
1108 * ---------------------------------
1109 *
1110 * TSA Assignment Table (8 octets)
1111 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
1112 * ---------------------------------
1113 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
1114 * ---------------------------------
1115 */
1116 ice_for_each_traffic_class(i) {
1117 buf[offset] = ets_cfg->tcbwtable[i];
1118 buf[ICE_MAX_TRAFFIC_CLASS + offset] = ets_cfg->tsatable[i];
1119 offset++;
1120 }
1121 }
1122
1123 /**
1124 * ice_add_ieee_ets_tlv - Prepare ETS TLV in IEEE format
1125 * @tlv: Fill the ETS config data in IEEE format
1126 * @dcbcfg: Local store which holds the DCB Config
1127 *
1128 * Prepare IEEE 802.1Qaz ETS CFG TLV
1129 */
1130 static void
ice_add_ieee_ets_tlv(struct ice_lldp_org_tlv * tlv,struct ice_dcbx_cfg * dcbcfg)1131 ice_add_ieee_ets_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
1132 {
1133 struct ice_dcb_ets_cfg *etscfg;
1134 u8 *buf = tlv->tlvinfo;
1135 u8 maxtcwilling = 0;
1136 u32 ouisubtype;
1137 u16 typelen;
1138
1139 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1140 ICE_IEEE_ETS_TLV_LEN);
1141 tlv->typelen = htons(typelen);
1142
1143 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
1144 ICE_IEEE_SUBTYPE_ETS_CFG);
1145 tlv->ouisubtype = htonl(ouisubtype);
1146
1147 /* First Octet post subtype
1148 * --------------------------
1149 * |will-|CBS | Re- | Max |
1150 * |ing | |served| TCs |
1151 * --------------------------
1152 * |1bit | 1bit|3 bits|3bits|
1153 */
1154 etscfg = &dcbcfg->etscfg;
1155 if (etscfg->willing)
1156 maxtcwilling = BIT(ICE_IEEE_ETS_WILLING_S);
1157 maxtcwilling |= etscfg->maxtcs & ICE_IEEE_ETS_MAXTC_M;
1158 buf[0] = maxtcwilling;
1159
1160 /* Begin adding at Priority Assignment Table (offset 1 in buf) */
1161 ice_add_ieee_ets_common_tlv(&buf[1], etscfg);
1162 }
1163
1164 /**
1165 * ice_add_ieee_etsrec_tlv - Prepare ETS Recommended TLV in IEEE format
1166 * @tlv: Fill ETS Recommended TLV in IEEE format
1167 * @dcbcfg: Local store which holds the DCB Config
1168 *
1169 * Prepare IEEE 802.1Qaz ETS REC TLV
1170 */
1171 static void
ice_add_ieee_etsrec_tlv(struct ice_lldp_org_tlv * tlv,struct ice_dcbx_cfg * dcbcfg)1172 ice_add_ieee_etsrec_tlv(struct ice_lldp_org_tlv *tlv,
1173 struct ice_dcbx_cfg *dcbcfg)
1174 {
1175 struct ice_dcb_ets_cfg *etsrec;
1176 u8 *buf = tlv->tlvinfo;
1177 u32 ouisubtype;
1178 u16 typelen;
1179
1180 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1181 ICE_IEEE_ETS_TLV_LEN);
1182 tlv->typelen = htons(typelen);
1183
1184 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
1185 ICE_IEEE_SUBTYPE_ETS_REC);
1186 tlv->ouisubtype = htonl(ouisubtype);
1187
1188 etsrec = &dcbcfg->etsrec;
1189
1190 /* First Octet is reserved */
1191 /* Begin adding at Priority Assignment Table (offset 1 in buf) */
1192 ice_add_ieee_ets_common_tlv(&buf[1], etsrec);
1193 }
1194
1195 /**
1196 * ice_add_ieee_pfc_tlv - Prepare PFC TLV in IEEE format
1197 * @tlv: Fill PFC TLV in IEEE format
1198 * @dcbcfg: Local store which holds the PFC CFG data
1199 *
1200 * Prepare IEEE 802.1Qaz PFC CFG TLV
1201 */
1202 static void
ice_add_ieee_pfc_tlv(struct ice_lldp_org_tlv * tlv,struct ice_dcbx_cfg * dcbcfg)1203 ice_add_ieee_pfc_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
1204 {
1205 u8 *buf = tlv->tlvinfo;
1206 u32 ouisubtype;
1207 u16 typelen;
1208
1209 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1210 ICE_IEEE_PFC_TLV_LEN);
1211 tlv->typelen = htons(typelen);
1212
1213 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
1214 ICE_IEEE_SUBTYPE_PFC_CFG);
1215 tlv->ouisubtype = htonl(ouisubtype);
1216
1217 /* ----------------------------------------
1218 * |will-|MBC | Re- | PFC | PFC Enable |
1219 * |ing | |served| cap | |
1220 * -----------------------------------------
1221 * |1bit | 1bit|2 bits|4bits| 1 octet |
1222 */
1223 if (dcbcfg->pfc.willing)
1224 buf[0] = BIT(ICE_IEEE_PFC_WILLING_S);
1225
1226 if (dcbcfg->pfc.mbc)
1227 buf[0] |= BIT(ICE_IEEE_PFC_MBC_S);
1228
1229 buf[0] |= dcbcfg->pfc.pfccap & 0xF;
1230 buf[1] = dcbcfg->pfc.pfcena;
1231 }
1232
1233 /**
1234 * ice_add_ieee_app_pri_tlv - Prepare APP TLV in IEEE format
1235 * @tlv: Fill APP TLV in IEEE format
1236 * @dcbcfg: Local store which holds the APP CFG data
1237 *
1238 * Prepare IEEE 802.1Qaz APP CFG TLV
1239 */
1240 static void
ice_add_ieee_app_pri_tlv(struct ice_lldp_org_tlv * tlv,struct ice_dcbx_cfg * dcbcfg)1241 ice_add_ieee_app_pri_tlv(struct ice_lldp_org_tlv *tlv,
1242 struct ice_dcbx_cfg *dcbcfg)
1243 {
1244 u16 typelen, len, offset = 0;
1245 u8 priority, selector, i = 0;
1246 u8 *buf = tlv->tlvinfo;
1247 u32 ouisubtype;
1248
1249 /* No APP TLVs then just return */
1250 if (dcbcfg->numapps == 0)
1251 return;
1252 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
1253 ICE_IEEE_SUBTYPE_APP_PRI);
1254 tlv->ouisubtype = htonl(ouisubtype);
1255
1256 /* Move offset to App Priority Table */
1257 offset++;
1258 /* Application Priority Table (3 octets)
1259 * Octets:| 1 | 2 | 3 |
1260 * -----------------------------------------
1261 * |Priority|Rsrvd| Sel | Protocol ID |
1262 * -----------------------------------------
1263 * Bits:|23 21|20 19|18 16|15 0|
1264 * -----------------------------------------
1265 */
1266 while (i < dcbcfg->numapps) {
1267 priority = dcbcfg->app[i].priority & 0x7;
1268 selector = dcbcfg->app[i].selector & 0x7;
1269 buf[offset] = (priority << ICE_IEEE_APP_PRIO_S) | selector;
1270 buf[offset + 1] = (dcbcfg->app[i].prot_id >> 0x8) & 0xFF;
1271 buf[offset + 2] = dcbcfg->app[i].prot_id & 0xFF;
1272 /* Move to next app */
1273 offset += 3;
1274 i++;
1275 if (i >= ICE_DCBX_MAX_APPS)
1276 break;
1277 }
1278 /* len includes size of ouisubtype + 1 reserved + 3*numapps */
1279 len = sizeof(tlv->ouisubtype) + 1 + (i * 3);
1280 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | (len & 0x1FF));
1281 tlv->typelen = htons(typelen);
1282 }
1283
1284 /**
1285 * ice_add_dscp_up_tlv - Prepare DSCP to UP TLV
1286 * @tlv: location to build the TLV data
1287 * @dcbcfg: location of data to convert to TLV
1288 */
1289 static void
ice_add_dscp_up_tlv(struct ice_lldp_org_tlv * tlv,struct ice_dcbx_cfg * dcbcfg)1290 ice_add_dscp_up_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
1291 {
1292 u8 *buf = tlv->tlvinfo;
1293 u32 ouisubtype;
1294 u16 typelen;
1295 int i;
1296
1297 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1298 ICE_DSCP_UP_TLV_LEN);
1299 tlv->typelen = htons(typelen);
1300
1301 ouisubtype = (u32)((ICE_DSCP_OUI << ICE_LLDP_TLV_OUI_S) |
1302 ICE_DSCP_SUBTYPE_DSCP2UP);
1303 tlv->ouisubtype = htonl(ouisubtype);
1304
1305 /* bytes 0 - 63 - IPv4 DSCP2UP LUT */
1306 for (i = 0; i < ICE_DSCP_NUM_VAL; i++) {
1307 /* IPv4 mapping */
1308 buf[i] = dcbcfg->dscp_map[i];
1309 /* IPv6 mapping */
1310 buf[i + ICE_DSCP_IPV6_OFFSET] = dcbcfg->dscp_map[i];
1311 }
1312
1313 /* byte 64 - IPv4 untagged traffic */
1314 buf[i] = 0;
1315
1316 /* byte 144 - IPv6 untagged traffic */
1317 buf[i + ICE_DSCP_IPV6_OFFSET] = 0;
1318 }
1319
1320 #define ICE_BYTES_PER_TC 8
1321 /**
1322 * ice_add_dscp_enf_tlv - Prepare DSCP Enforcement TLV
1323 * @tlv: location to build the TLV data
1324 */
1325 static void
ice_add_dscp_enf_tlv(struct ice_lldp_org_tlv * tlv)1326 ice_add_dscp_enf_tlv(struct ice_lldp_org_tlv *tlv)
1327 {
1328 u8 *buf = tlv->tlvinfo;
1329 u32 ouisubtype;
1330 u16 typelen;
1331
1332 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1333 ICE_DSCP_ENF_TLV_LEN);
1334 tlv->typelen = htons(typelen);
1335
1336 ouisubtype = (u32)((ICE_DSCP_OUI << ICE_LLDP_TLV_OUI_S) |
1337 ICE_DSCP_SUBTYPE_ENFORCE);
1338 tlv->ouisubtype = htonl(ouisubtype);
1339
1340 /* Allow all DSCP values to be valid for all TC's (IPv4 and IPv6) */
1341 memset(buf, 0, 2 * (ICE_MAX_TRAFFIC_CLASS * ICE_BYTES_PER_TC));
1342 }
1343
1344 /**
1345 * ice_add_dscp_tc_bw_tlv - Prepare DSCP BW for TC TLV
1346 * @tlv: location to build the TLV data
1347 * @dcbcfg: location of the data to convert to TLV
1348 */
1349 static void
ice_add_dscp_tc_bw_tlv(struct ice_lldp_org_tlv * tlv,struct ice_dcbx_cfg * dcbcfg)1350 ice_add_dscp_tc_bw_tlv(struct ice_lldp_org_tlv *tlv,
1351 struct ice_dcbx_cfg *dcbcfg)
1352 {
1353 struct ice_dcb_ets_cfg *etscfg;
1354 u8 *buf = tlv->tlvinfo;
1355 u32 ouisubtype;
1356 u8 offset = 0;
1357 u16 typelen;
1358 int i;
1359
1360 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1361 ICE_DSCP_TC_BW_TLV_LEN);
1362 tlv->typelen = htons(typelen);
1363
1364 ouisubtype = (u32)((ICE_DSCP_OUI << ICE_LLDP_TLV_OUI_S) |
1365 ICE_DSCP_SUBTYPE_TCBW);
1366 tlv->ouisubtype = htonl(ouisubtype);
1367
1368 /* First Octect after subtype
1369 * ----------------------------
1370 * | RSV | CBS | RSV | Max TCs |
1371 * | 1b | 1b | 3b | 3b |
1372 * ----------------------------
1373 */
1374 etscfg = &dcbcfg->etscfg;
1375 buf[0] = etscfg->maxtcs & ICE_IEEE_ETS_MAXTC_M;
1376
1377 /* bytes 1 - 4 reserved */
1378 offset = 5;
1379
1380 /* TC BW table
1381 * bytes 0 - 7 for TC 0 - 7
1382 *
1383 * TSA Assignment table
1384 * bytes 8 - 15 for TC 0 - 7
1385 */
1386 for (i = 0; i < ICE_MAX_TRAFFIC_CLASS; i++) {
1387 buf[offset] = etscfg->tcbwtable[i];
1388 buf[offset + ICE_MAX_TRAFFIC_CLASS] = etscfg->tsatable[i];
1389 offset++;
1390 }
1391 }
1392
1393 /**
1394 * ice_add_dscp_pfc_tlv - Prepare DSCP PFC TLV
1395 * @tlv: Fill PFC TLV in IEEE format
1396 * @dcbcfg: Local store which holds the PFC CFG data
1397 */
1398 static void
ice_add_dscp_pfc_tlv(struct ice_lldp_org_tlv * tlv,struct ice_dcbx_cfg * dcbcfg)1399 ice_add_dscp_pfc_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
1400 {
1401 u8 *buf = tlv->tlvinfo;
1402 u32 ouisubtype;
1403 u16 typelen;
1404
1405 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1406 ICE_DSCP_PFC_TLV_LEN);
1407 tlv->typelen = htons(typelen);
1408
1409 ouisubtype = (u32)((ICE_DSCP_OUI << ICE_LLDP_TLV_OUI_S) |
1410 ICE_DSCP_SUBTYPE_PFC);
1411 tlv->ouisubtype = htonl(ouisubtype);
1412
1413 buf[0] = dcbcfg->pfc.pfccap & 0xF;
1414 buf[1] = dcbcfg->pfc.pfcena;
1415 }
1416
1417 /**
1418 * ice_add_dcb_tlv - Add all IEEE or DSCP TLVs
1419 * @tlv: Fill TLV data in IEEE format
1420 * @dcbcfg: Local store which holds the DCB Config
1421 * @tlvid: Type of IEEE TLV
1422 *
1423 * Add tlv information
1424 */
1425 static void
ice_add_dcb_tlv(struct ice_lldp_org_tlv * tlv,struct ice_dcbx_cfg * dcbcfg,u16 tlvid)1426 ice_add_dcb_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg,
1427 u16 tlvid)
1428 {
1429 if (dcbcfg->pfc_mode == ICE_QOS_MODE_VLAN) {
1430 switch (tlvid) {
1431 case ICE_IEEE_TLV_ID_ETS_CFG:
1432 ice_add_ieee_ets_tlv(tlv, dcbcfg);
1433 break;
1434 case ICE_IEEE_TLV_ID_ETS_REC:
1435 ice_add_ieee_etsrec_tlv(tlv, dcbcfg);
1436 break;
1437 case ICE_IEEE_TLV_ID_PFC_CFG:
1438 ice_add_ieee_pfc_tlv(tlv, dcbcfg);
1439 break;
1440 case ICE_IEEE_TLV_ID_APP_PRI:
1441 ice_add_ieee_app_pri_tlv(tlv, dcbcfg);
1442 break;
1443 default:
1444 break;
1445 }
1446 } else {
1447 /* pfc_mode == ICE_QOS_MODE_DSCP */
1448 switch (tlvid) {
1449 case ICE_TLV_ID_DSCP_UP:
1450 ice_add_dscp_up_tlv(tlv, dcbcfg);
1451 break;
1452 case ICE_TLV_ID_DSCP_ENF:
1453 ice_add_dscp_enf_tlv(tlv);
1454 break;
1455 case ICE_TLV_ID_DSCP_TC_BW:
1456 ice_add_dscp_tc_bw_tlv(tlv, dcbcfg);
1457 break;
1458 case ICE_TLV_ID_DSCP_TO_PFC:
1459 ice_add_dscp_pfc_tlv(tlv, dcbcfg);
1460 break;
1461 default:
1462 break;
1463 }
1464 }
1465 }
1466
1467 /**
1468 * ice_dcb_cfg_to_lldp - Convert DCB configuration to MIB format
1469 * @lldpmib: pointer to the HW struct
1470 * @miblen: length of LLDP MIB
1471 * @dcbcfg: Local store which holds the DCB Config
1472 *
1473 * Convert the DCB configuration to MIB format
1474 */
1475 static void
ice_dcb_cfg_to_lldp(u8 * lldpmib,u16 * miblen,struct ice_dcbx_cfg * dcbcfg)1476 ice_dcb_cfg_to_lldp(u8 *lldpmib, u16 *miblen, struct ice_dcbx_cfg *dcbcfg)
1477 {
1478 u16 len, offset = 0, tlvid = ICE_TLV_ID_START;
1479 struct ice_lldp_org_tlv *tlv;
1480 u16 typelen;
1481
1482 tlv = (struct ice_lldp_org_tlv *)lldpmib;
1483 while (1) {
1484 ice_add_dcb_tlv(tlv, dcbcfg, tlvid++);
1485 typelen = ntohs(tlv->typelen);
1486 len = (typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S;
1487 if (len)
1488 offset += len + 2;
1489 /* END TLV or beyond LLDPDU size */
1490 if (tlvid >= ICE_TLV_ID_END_OF_LLDPPDU ||
1491 offset > ICE_LLDPDU_SIZE)
1492 break;
1493 /* Move to next TLV */
1494 if (len)
1495 tlv = (struct ice_lldp_org_tlv *)
1496 ((char *)tlv + sizeof(tlv->typelen) + len);
1497 }
1498 *miblen = offset;
1499 }
1500
1501 /**
1502 * ice_set_dcb_cfg - Set the local LLDP MIB to FW
1503 * @pi: port information structure
1504 *
1505 * Set DCB configuration to the Firmware
1506 */
ice_set_dcb_cfg(struct ice_port_info * pi)1507 int ice_set_dcb_cfg(struct ice_port_info *pi)
1508 {
1509 u8 mib_type, *lldpmib = NULL;
1510 struct ice_dcbx_cfg *dcbcfg;
1511 struct ice_hw *hw;
1512 u16 miblen;
1513 int ret;
1514
1515 if (!pi)
1516 return -EINVAL;
1517
1518 hw = pi->hw;
1519
1520 /* update the HW local config */
1521 dcbcfg = &pi->qos_cfg.local_dcbx_cfg;
1522 /* Allocate the LLDPDU */
1523 lldpmib = devm_kzalloc(ice_hw_to_dev(hw), ICE_LLDPDU_SIZE, GFP_KERNEL);
1524 if (!lldpmib)
1525 return -ENOMEM;
1526
1527 mib_type = SET_LOCAL_MIB_TYPE_LOCAL_MIB;
1528 if (dcbcfg->app_mode == ICE_DCBX_APPS_NON_WILLING)
1529 mib_type |= SET_LOCAL_MIB_TYPE_CEE_NON_WILLING;
1530
1531 ice_dcb_cfg_to_lldp(lldpmib, &miblen, dcbcfg);
1532 ret = ice_aq_set_lldp_mib(hw, mib_type, (void *)lldpmib, miblen,
1533 NULL);
1534
1535 devm_kfree(ice_hw_to_dev(hw), lldpmib);
1536
1537 return ret;
1538 }
1539
1540 /**
1541 * ice_aq_query_port_ets - query port ETS configuration
1542 * @pi: port information structure
1543 * @buf: pointer to buffer
1544 * @buf_size: buffer size in bytes
1545 * @cd: pointer to command details structure or NULL
1546 *
1547 * query current port ETS configuration
1548 */
1549 static int
ice_aq_query_port_ets(struct ice_port_info * pi,struct ice_aqc_port_ets_elem * buf,u16 buf_size,struct ice_sq_cd * cd)1550 ice_aq_query_port_ets(struct ice_port_info *pi,
1551 struct ice_aqc_port_ets_elem *buf, u16 buf_size,
1552 struct ice_sq_cd *cd)
1553 {
1554 struct ice_aqc_query_port_ets *cmd;
1555 struct ice_aq_desc desc;
1556 int status;
1557
1558 if (!pi)
1559 return -EINVAL;
1560 cmd = &desc.params.port_ets;
1561 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_query_port_ets);
1562 cmd->port_teid = pi->root->info.node_teid;
1563
1564 status = ice_aq_send_cmd(pi->hw, &desc, buf, buf_size, cd);
1565 return status;
1566 }
1567
1568 /**
1569 * ice_update_port_tc_tree_cfg - update TC tree configuration
1570 * @pi: port information structure
1571 * @buf: pointer to buffer
1572 *
1573 * update the SW DB with the new TC changes
1574 */
1575 static int
ice_update_port_tc_tree_cfg(struct ice_port_info * pi,struct ice_aqc_port_ets_elem * buf)1576 ice_update_port_tc_tree_cfg(struct ice_port_info *pi,
1577 struct ice_aqc_port_ets_elem *buf)
1578 {
1579 struct ice_sched_node *node, *tc_node;
1580 struct ice_aqc_txsched_elem_data elem;
1581 u32 teid1, teid2;
1582 int status = 0;
1583 u8 i, j;
1584
1585 if (!pi)
1586 return -EINVAL;
1587 /* suspend the missing TC nodes */
1588 for (i = 0; i < pi->root->num_children; i++) {
1589 teid1 = le32_to_cpu(pi->root->children[i]->info.node_teid);
1590 ice_for_each_traffic_class(j) {
1591 teid2 = le32_to_cpu(buf->tc_node_teid[j]);
1592 if (teid1 == teid2)
1593 break;
1594 }
1595 if (j < ICE_MAX_TRAFFIC_CLASS)
1596 continue;
1597 /* TC is missing */
1598 pi->root->children[i]->in_use = false;
1599 }
1600 /* add the new TC nodes */
1601 ice_for_each_traffic_class(j) {
1602 teid2 = le32_to_cpu(buf->tc_node_teid[j]);
1603 if (teid2 == ICE_INVAL_TEID)
1604 continue;
1605 /* Is it already present in the tree ? */
1606 for (i = 0; i < pi->root->num_children; i++) {
1607 tc_node = pi->root->children[i];
1608 if (!tc_node)
1609 continue;
1610 teid1 = le32_to_cpu(tc_node->info.node_teid);
1611 if (teid1 == teid2) {
1612 tc_node->tc_num = j;
1613 tc_node->in_use = true;
1614 break;
1615 }
1616 }
1617 if (i < pi->root->num_children)
1618 continue;
1619 /* new TC */
1620 status = ice_sched_query_elem(pi->hw, teid2, &elem);
1621 if (!status)
1622 status = ice_sched_add_node(pi, 1, &elem, NULL);
1623 if (status)
1624 break;
1625 /* update the TC number */
1626 node = ice_sched_find_node_by_teid(pi->root, teid2);
1627 if (node)
1628 node->tc_num = j;
1629 }
1630 return status;
1631 }
1632
1633 /**
1634 * ice_query_port_ets - query port ETS configuration
1635 * @pi: port information structure
1636 * @buf: pointer to buffer
1637 * @buf_size: buffer size in bytes
1638 * @cd: pointer to command details structure or NULL
1639 *
1640 * query current port ETS configuration and update the
1641 * SW DB with the TC changes
1642 */
1643 int
ice_query_port_ets(struct ice_port_info * pi,struct ice_aqc_port_ets_elem * buf,u16 buf_size,struct ice_sq_cd * cd)1644 ice_query_port_ets(struct ice_port_info *pi,
1645 struct ice_aqc_port_ets_elem *buf, u16 buf_size,
1646 struct ice_sq_cd *cd)
1647 {
1648 int status;
1649
1650 mutex_lock(&pi->sched_lock);
1651 status = ice_aq_query_port_ets(pi, buf, buf_size, cd);
1652 if (!status)
1653 status = ice_update_port_tc_tree_cfg(pi, buf);
1654 mutex_unlock(&pi->sched_lock);
1655 return status;
1656 }
1657