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
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
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
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  */
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  */
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
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
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
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
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
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
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
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
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
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
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
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  */
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
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
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
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  */
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
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  */
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  */
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  */
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  */
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  */
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
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
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
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
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
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
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
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
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
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
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
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  */
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
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
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
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