xref: /freebsd/sys/dev/ice/ice_dcb.c (revision 6be3386466ab79a84b48429ae66244f21526d3df)
1 /* SPDX-License-Identifier: BSD-3-Clause */
2 /*  Copyright (c) 2021, Intel Corporation
3  *  All rights reserved.
4  *
5  *  Redistribution and use in source and binary forms, with or without
6  *  modification, are permitted provided that the following conditions are met:
7  *
8  *   1. Redistributions of source code must retain the above copyright notice,
9  *      this list of conditions and the following disclaimer.
10  *
11  *   2. Redistributions in binary form must reproduce the above copyright
12  *      notice, this list of conditions and the following disclaimer in the
13  *      documentation and/or other materials provided with the distribution.
14  *
15  *   3. Neither the name of the Intel Corporation nor the names of its
16  *      contributors may be used to endorse or promote products derived from
17  *      this software without specific prior written permission.
18  *
19  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20  *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
23  *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  *  POSSIBILITY OF SUCH DAMAGE.
30  */
31 /*$FreeBSD$*/
32 
33 #include "ice_common.h"
34 #include "ice_sched.h"
35 #include "ice_dcb.h"
36 
37 /**
38  * ice_aq_get_lldp_mib
39  * @hw: pointer to the HW struct
40  * @bridge_type: type of bridge requested
41  * @mib_type: Local, Remote or both Local and Remote MIBs
42  * @buf: pointer to the caller-supplied buffer to store the MIB block
43  * @buf_size: size of the buffer (in bytes)
44  * @local_len: length of the returned Local LLDP MIB
45  * @remote_len: length of the returned Remote LLDP MIB
46  * @cd: pointer to command details structure or NULL
47  *
48  * Requests the complete LLDP MIB (entire packet). (0x0A00)
49  */
50 enum ice_status
51 ice_aq_get_lldp_mib(struct ice_hw *hw, u8 bridge_type, u8 mib_type, void *buf,
52 		    u16 buf_size, u16 *local_len, u16 *remote_len,
53 		    struct ice_sq_cd *cd)
54 {
55 	struct ice_aqc_lldp_get_mib *cmd;
56 	struct ice_aq_desc desc;
57 	enum ice_status status;
58 
59 	cmd = &desc.params.lldp_get_mib;
60 
61 	if (buf_size == 0 || !buf)
62 		return ICE_ERR_PARAM;
63 
64 	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_get_mib);
65 
66 	cmd->type = mib_type & ICE_AQ_LLDP_MIB_TYPE_M;
67 	cmd->type |= (bridge_type << ICE_AQ_LLDP_BRID_TYPE_S) &
68 		ICE_AQ_LLDP_BRID_TYPE_M;
69 
70 	desc.datalen = CPU_TO_LE16(buf_size);
71 
72 	status = ice_aq_send_cmd(hw, &desc, buf, buf_size, cd);
73 	if (!status) {
74 		if (local_len)
75 			*local_len = LE16_TO_CPU(cmd->local_len);
76 		if (remote_len)
77 			*remote_len = LE16_TO_CPU(cmd->remote_len);
78 	}
79 
80 	return status;
81 }
82 
83 /**
84  * ice_aq_cfg_lldp_mib_change
85  * @hw: pointer to the HW struct
86  * @ena_update: Enable or Disable event posting
87  * @cd: pointer to command details structure or NULL
88  *
89  * Enable or Disable posting of an event on ARQ when LLDP MIB
90  * associated with the interface changes (0x0A01)
91  */
92 enum ice_status
93 ice_aq_cfg_lldp_mib_change(struct ice_hw *hw, bool ena_update,
94 			   struct ice_sq_cd *cd)
95 {
96 	struct ice_aqc_lldp_set_mib_change *cmd;
97 	struct ice_aq_desc desc;
98 
99 	cmd = &desc.params.lldp_set_event;
100 
101 	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_set_mib_change);
102 
103 	if (!ena_update)
104 		cmd->command |= ICE_AQ_LLDP_MIB_UPDATE_DIS;
105 
106 	return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
107 }
108 
109 /**
110  * ice_aq_add_delete_lldp_tlv
111  * @hw: pointer to the HW struct
112  * @bridge_type: type of bridge
113  * @add_lldp_tlv: add (true) or delete (false) TLV
114  * @buf: buffer with TLV to add or delete
115  * @buf_size: length of the buffer
116  * @tlv_len: length of the TLV to be added/deleted
117  * @mib_len: length of the LLDP MIB returned in response
118  * @cd: pointer to command details structure or NULL
119  *
120  * (Add tlv)
121  * Add the specified TLV to LLDP Local MIB for the given bridge type,
122  * it is responsibility of the caller to make sure that the TLV is not
123  * already present in the LLDPDU.
124  * In return firmware will write the complete LLDP MIB with the newly
125  * added TLV in the response buffer. (0x0A02)
126  *
127  * (Delete tlv)
128  * Delete the specified TLV from LLDP Local MIB for the given bridge type.
129  * The firmware places the entire LLDP MIB in the response buffer. (0x0A04)
130  */
131 enum ice_status
132 ice_aq_add_delete_lldp_tlv(struct ice_hw *hw, u8 bridge_type, bool add_lldp_tlv,
133 			   void *buf, u16 buf_size, u16 tlv_len, u16 *mib_len,
134 			   struct ice_sq_cd *cd)
135 {
136 	struct ice_aqc_lldp_add_delete_tlv *cmd;
137 	struct ice_aq_desc desc;
138 	enum ice_status status;
139 
140 	if (tlv_len == 0)
141 		return ICE_ERR_PARAM;
142 
143 	cmd = &desc.params.lldp_add_delete_tlv;
144 
145 	if (add_lldp_tlv)
146 		ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_add_tlv);
147 	else
148 		ice_fill_dflt_direct_cmd_desc(&desc,
149 					      ice_aqc_opc_lldp_delete_tlv);
150 
151 	desc.flags |= CPU_TO_LE16((u16)(ICE_AQ_FLAG_RD));
152 
153 	cmd->type = ((bridge_type << ICE_AQ_LLDP_BRID_TYPE_S) &
154 		     ICE_AQ_LLDP_BRID_TYPE_M);
155 	cmd->len = CPU_TO_LE16(tlv_len);
156 
157 	status = ice_aq_send_cmd(hw, &desc, buf, buf_size, cd);
158 	if (!status && mib_len)
159 		*mib_len = LE16_TO_CPU(desc.datalen);
160 
161 	return status;
162 }
163 
164 /**
165  * ice_aq_update_lldp_tlv
166  * @hw: pointer to the HW struct
167  * @bridge_type: type of bridge
168  * @buf: buffer with TLV to update
169  * @buf_size: size of the buffer holding original and updated TLVs
170  * @old_len: Length of the Original TLV
171  * @new_len: Length of the Updated TLV
172  * @offset: offset of the updated TLV in the buff
173  * @mib_len: length of the returned LLDP MIB
174  * @cd: pointer to command details structure or NULL
175  *
176  * Update the specified TLV to the LLDP Local MIB for the given bridge type.
177  * Firmware will place the complete LLDP MIB in response buffer with the
178  * updated TLV. (0x0A03)
179  */
180 enum ice_status
181 ice_aq_update_lldp_tlv(struct ice_hw *hw, u8 bridge_type, void *buf,
182 		       u16 buf_size, u16 old_len, u16 new_len, u16 offset,
183 		       u16 *mib_len, struct ice_sq_cd *cd)
184 {
185 	struct ice_aqc_lldp_update_tlv *cmd;
186 	struct ice_aq_desc desc;
187 	enum ice_status status;
188 
189 	cmd = &desc.params.lldp_update_tlv;
190 
191 	if (offset == 0 || old_len == 0 || new_len == 0)
192 		return ICE_ERR_PARAM;
193 
194 	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_update_tlv);
195 
196 	desc.flags |= CPU_TO_LE16((u16)(ICE_AQ_FLAG_RD));
197 
198 	cmd->type = ((bridge_type << ICE_AQ_LLDP_BRID_TYPE_S) &
199 		     ICE_AQ_LLDP_BRID_TYPE_M);
200 	cmd->old_len = CPU_TO_LE16(old_len);
201 	cmd->new_offset = CPU_TO_LE16(offset);
202 	cmd->new_len = CPU_TO_LE16(new_len);
203 
204 	status = ice_aq_send_cmd(hw, &desc, buf, buf_size, cd);
205 	if (!status && mib_len)
206 		*mib_len = LE16_TO_CPU(desc.datalen);
207 
208 	return status;
209 }
210 
211 /**
212  * ice_aq_stop_lldp
213  * @hw: pointer to the HW struct
214  * @shutdown_lldp_agent: True if LLDP Agent needs to be Shutdown
215  *			 False if LLDP Agent needs to be Stopped
216  * @persist: True if Stop/Shutdown of LLDP Agent needs to be persistent across
217  *	     reboots
218  * @cd: pointer to command details structure or NULL
219  *
220  * Stop or Shutdown the embedded LLDP Agent (0x0A05)
221  */
222 enum ice_status
223 ice_aq_stop_lldp(struct ice_hw *hw, bool shutdown_lldp_agent, bool persist,
224 		 struct ice_sq_cd *cd)
225 {
226 	struct ice_aqc_lldp_stop *cmd;
227 	struct ice_aq_desc desc;
228 
229 	cmd = &desc.params.lldp_stop;
230 
231 	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_stop);
232 
233 	if (shutdown_lldp_agent)
234 		cmd->command |= ICE_AQ_LLDP_AGENT_SHUTDOWN;
235 
236 	if (persist)
237 		cmd->command |= ICE_AQ_LLDP_AGENT_PERSIST_DIS;
238 
239 	return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
240 }
241 
242 /**
243  * ice_aq_start_lldp
244  * @hw: pointer to the HW struct
245  * @persist: True if Start of LLDP Agent needs to be persistent across reboots
246  * @cd: pointer to command details structure or NULL
247  *
248  * Start the embedded LLDP Agent on all ports. (0x0A06)
249  */
250 enum ice_status
251 ice_aq_start_lldp(struct ice_hw *hw, bool persist, struct ice_sq_cd *cd)
252 {
253 	struct ice_aqc_lldp_start *cmd;
254 	struct ice_aq_desc desc;
255 
256 	cmd = &desc.params.lldp_start;
257 
258 	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_start);
259 
260 	cmd->command = ICE_AQ_LLDP_AGENT_START;
261 
262 	if (persist)
263 		cmd->command |= ICE_AQ_LLDP_AGENT_PERSIST_ENA;
264 
265 	return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
266 }
267 
268 /**
269  * ice_get_dcbx_status
270  * @hw: pointer to the HW struct
271  *
272  * Get the DCBX status from the Firmware
273  */
274 u8 ice_get_dcbx_status(struct ice_hw *hw)
275 {
276 	u32 reg;
277 
278 	reg = rd32(hw, PRTDCB_GENS);
279 	return (u8)((reg & PRTDCB_GENS_DCBX_STATUS_M) >>
280 		    PRTDCB_GENS_DCBX_STATUS_S);
281 }
282 
283 /**
284  * ice_parse_ieee_ets_common_tlv
285  * @buf: Data buffer to be parsed for ETS CFG/REC data
286  * @ets_cfg: Container to store parsed data
287  *
288  * Parses the common data of IEEE 802.1Qaz ETS CFG/REC TLV
289  */
290 static void
291 ice_parse_ieee_ets_common_tlv(u8 *buf, struct ice_dcb_ets_cfg *ets_cfg)
292 {
293 	u8 offset = 0;
294 	int i;
295 
296 	/* Priority Assignment Table (4 octets)
297 	 * Octets:|    1    |    2    |    3    |    4    |
298 	 *        -----------------------------------------
299 	 *        |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
300 	 *        -----------------------------------------
301 	 *   Bits:|7  4|3  0|7  4|3  0|7  4|3  0|7  4|3  0|
302 	 *        -----------------------------------------
303 	 */
304 	for (i = 0; i < 4; i++) {
305 		ets_cfg->prio_table[i * 2] =
306 			((buf[offset] & ICE_IEEE_ETS_PRIO_1_M) >>
307 			 ICE_IEEE_ETS_PRIO_1_S);
308 		ets_cfg->prio_table[i * 2 + 1] =
309 			((buf[offset] & ICE_IEEE_ETS_PRIO_0_M) >>
310 			 ICE_IEEE_ETS_PRIO_0_S);
311 		offset++;
312 	}
313 
314 	/* TC Bandwidth Table (8 octets)
315 	 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
316 	 *        ---------------------------------
317 	 *        |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
318 	 *        ---------------------------------
319 	 *
320 	 * TSA Assignment Table (8 octets)
321 	 * Octets:| 9 | 10| 11| 12| 13| 14| 15| 16|
322 	 *        ---------------------------------
323 	 *        |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
324 	 *        ---------------------------------
325 	 */
326 	ice_for_each_traffic_class(i) {
327 		ets_cfg->tcbwtable[i] = buf[offset];
328 		ets_cfg->tsatable[i] = buf[ICE_MAX_TRAFFIC_CLASS + offset++];
329 	}
330 }
331 
332 /**
333  * ice_parse_ieee_etscfg_tlv
334  * @tlv: IEEE 802.1Qaz ETS CFG TLV
335  * @dcbcfg: Local store to update ETS CFG data
336  *
337  * Parses IEEE 802.1Qaz ETS CFG TLV
338  */
339 static void
340 ice_parse_ieee_etscfg_tlv(struct ice_lldp_org_tlv *tlv,
341 			  struct ice_dcbx_cfg *dcbcfg)
342 {
343 	struct ice_dcb_ets_cfg *etscfg;
344 	u8 *buf = tlv->tlvinfo;
345 
346 	/* First Octet post subtype
347 	 * --------------------------
348 	 * |will-|CBS  | Re-  | Max |
349 	 * |ing  |     |served| TCs |
350 	 * --------------------------
351 	 * |1bit | 1bit|3 bits|3bits|
352 	 */
353 	etscfg = &dcbcfg->etscfg;
354 	etscfg->willing = ((buf[0] & ICE_IEEE_ETS_WILLING_M) >>
355 			   ICE_IEEE_ETS_WILLING_S);
356 	etscfg->cbs = ((buf[0] & ICE_IEEE_ETS_CBS_M) >> ICE_IEEE_ETS_CBS_S);
357 	etscfg->maxtcs = ((buf[0] & ICE_IEEE_ETS_MAXTC_M) >>
358 			  ICE_IEEE_ETS_MAXTC_S);
359 
360 	/* Begin parsing at Priority Assignment Table (offset 1 in buf) */
361 	ice_parse_ieee_ets_common_tlv(&buf[1], etscfg);
362 }
363 
364 /**
365  * ice_parse_ieee_etsrec_tlv
366  * @tlv: IEEE 802.1Qaz ETS REC TLV
367  * @dcbcfg: Local store to update ETS REC data
368  *
369  * Parses IEEE 802.1Qaz ETS REC TLV
370  */
371 static void
372 ice_parse_ieee_etsrec_tlv(struct ice_lldp_org_tlv *tlv,
373 			  struct ice_dcbx_cfg *dcbcfg)
374 {
375 	u8 *buf = tlv->tlvinfo;
376 
377 	/* Begin parsing at Priority Assignment Table (offset 1 in buf) */
378 	ice_parse_ieee_ets_common_tlv(&buf[1], &dcbcfg->etsrec);
379 }
380 
381 /**
382  * ice_parse_ieee_pfccfg_tlv
383  * @tlv: IEEE 802.1Qaz PFC CFG TLV
384  * @dcbcfg: Local store to update PFC CFG data
385  *
386  * Parses IEEE 802.1Qaz PFC CFG TLV
387  */
388 static void
389 ice_parse_ieee_pfccfg_tlv(struct ice_lldp_org_tlv *tlv,
390 			  struct ice_dcbx_cfg *dcbcfg)
391 {
392 	u8 *buf = tlv->tlvinfo;
393 
394 	/* ----------------------------------------
395 	 * |will-|MBC  | Re-  | PFC |  PFC Enable  |
396 	 * |ing  |     |served| cap |              |
397 	 * -----------------------------------------
398 	 * |1bit | 1bit|2 bits|4bits| 1 octet      |
399 	 */
400 	dcbcfg->pfc.willing = ((buf[0] & ICE_IEEE_PFC_WILLING_M) >>
401 			       ICE_IEEE_PFC_WILLING_S);
402 	dcbcfg->pfc.mbc = ((buf[0] & ICE_IEEE_PFC_MBC_M) >> ICE_IEEE_PFC_MBC_S);
403 	dcbcfg->pfc.pfccap = ((buf[0] & ICE_IEEE_PFC_CAP_M) >>
404 			      ICE_IEEE_PFC_CAP_S);
405 	dcbcfg->pfc.pfcena = buf[1];
406 }
407 
408 /**
409  * ice_parse_ieee_app_tlv
410  * @tlv: IEEE 802.1Qaz APP TLV
411  * @dcbcfg: Local store to update APP PRIO data
412  *
413  * Parses IEEE 802.1Qaz APP PRIO TLV
414  */
415 static void
416 ice_parse_ieee_app_tlv(struct ice_lldp_org_tlv *tlv,
417 		       struct ice_dcbx_cfg *dcbcfg)
418 {
419 	u16 offset = 0;
420 	u16 typelen;
421 	int i = 0;
422 	u16 len;
423 	u8 *buf;
424 
425 	typelen = NTOHS(tlv->typelen);
426 	len = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S);
427 	buf = tlv->tlvinfo;
428 
429 	/* Removing sizeof(ouisubtype) and reserved byte from len.
430 	 * Remaining len div 3 is number of APP TLVs.
431 	 */
432 	len -= (sizeof(tlv->ouisubtype) + 1);
433 
434 	/* Move offset to App Priority Table */
435 	offset++;
436 
437 	/* Application Priority Table (3 octets)
438 	 * Octets:|         1          |    2    |    3    |
439 	 *        -----------------------------------------
440 	 *        |Priority|Rsrvd| Sel |    Protocol ID    |
441 	 *        -----------------------------------------
442 	 *   Bits:|23    21|20 19|18 16|15                0|
443 	 *        -----------------------------------------
444 	 */
445 	while (offset < len) {
446 		dcbcfg->app[i].priority = ((buf[offset] &
447 					    ICE_IEEE_APP_PRIO_M) >>
448 					   ICE_IEEE_APP_PRIO_S);
449 		dcbcfg->app[i].selector = ((buf[offset] &
450 					    ICE_IEEE_APP_SEL_M) >>
451 					   ICE_IEEE_APP_SEL_S);
452 		dcbcfg->app[i].prot_id = (buf[offset + 1] << 0x8) |
453 			buf[offset + 2];
454 		/* Move to next app */
455 		offset += 3;
456 		i++;
457 		if (i >= ICE_DCBX_MAX_APPS)
458 			break;
459 	}
460 
461 	dcbcfg->numapps = i;
462 }
463 
464 /**
465  * ice_parse_ieee_tlv
466  * @tlv: IEEE 802.1Qaz TLV
467  * @dcbcfg: Local store to update ETS REC data
468  *
469  * Get the TLV subtype and send it to parsing function
470  * based on the subtype value
471  */
472 static void
473 ice_parse_ieee_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
474 {
475 	u32 ouisubtype;
476 	u8 subtype;
477 
478 	ouisubtype = NTOHL(tlv->ouisubtype);
479 	subtype = (u8)((ouisubtype & ICE_LLDP_TLV_SUBTYPE_M) >>
480 		       ICE_LLDP_TLV_SUBTYPE_S);
481 	switch (subtype) {
482 	case ICE_IEEE_SUBTYPE_ETS_CFG:
483 		ice_parse_ieee_etscfg_tlv(tlv, dcbcfg);
484 		break;
485 	case ICE_IEEE_SUBTYPE_ETS_REC:
486 		ice_parse_ieee_etsrec_tlv(tlv, dcbcfg);
487 		break;
488 	case ICE_IEEE_SUBTYPE_PFC_CFG:
489 		ice_parse_ieee_pfccfg_tlv(tlv, dcbcfg);
490 		break;
491 	case ICE_IEEE_SUBTYPE_APP_PRI:
492 		ice_parse_ieee_app_tlv(tlv, dcbcfg);
493 		break;
494 	default:
495 		break;
496 	}
497 }
498 
499 /**
500  * ice_parse_cee_pgcfg_tlv
501  * @tlv: CEE DCBX PG CFG TLV
502  * @dcbcfg: Local store to update ETS CFG data
503  *
504  * Parses CEE DCBX PG CFG TLV
505  */
506 static void
507 ice_parse_cee_pgcfg_tlv(struct ice_cee_feat_tlv *tlv,
508 			struct ice_dcbx_cfg *dcbcfg)
509 {
510 	struct ice_dcb_ets_cfg *etscfg;
511 	u8 *buf = tlv->tlvinfo;
512 	u16 offset = 0;
513 	int i;
514 
515 	etscfg = &dcbcfg->etscfg;
516 
517 	if (tlv->en_will_err & ICE_CEE_FEAT_TLV_WILLING_M)
518 		etscfg->willing = 1;
519 
520 	etscfg->cbs = 0;
521 	/* Priority Group Table (4 octets)
522 	 * Octets:|    1    |    2    |    3    |    4    |
523 	 *        -----------------------------------------
524 	 *        |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
525 	 *        -----------------------------------------
526 	 *   Bits:|7  4|3  0|7  4|3  0|7  4|3  0|7  4|3  0|
527 	 *        -----------------------------------------
528 	 */
529 	for (i = 0; i < 4; i++) {
530 		etscfg->prio_table[i * 2] =
531 			((buf[offset] & ICE_CEE_PGID_PRIO_1_M) >>
532 			 ICE_CEE_PGID_PRIO_1_S);
533 		etscfg->prio_table[i * 2 + 1] =
534 			((buf[offset] & ICE_CEE_PGID_PRIO_0_M) >>
535 			 ICE_CEE_PGID_PRIO_0_S);
536 		offset++;
537 	}
538 
539 	/* PG Percentage Table (8 octets)
540 	 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
541 	 *        ---------------------------------
542 	 *        |pg0|pg1|pg2|pg3|pg4|pg5|pg6|pg7|
543 	 *        ---------------------------------
544 	 */
545 	ice_for_each_traffic_class(i) {
546 		etscfg->tcbwtable[i] = buf[offset++];
547 
548 		if (etscfg->prio_table[i] == ICE_CEE_PGID_STRICT)
549 			dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_STRICT;
550 		else
551 			dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_ETS;
552 	}
553 
554 	/* Number of TCs supported (1 octet) */
555 	etscfg->maxtcs = buf[offset];
556 }
557 
558 /**
559  * ice_parse_cee_pfccfg_tlv
560  * @tlv: CEE DCBX PFC CFG TLV
561  * @dcbcfg: Local store to update PFC CFG data
562  *
563  * Parses CEE DCBX PFC CFG TLV
564  */
565 static void
566 ice_parse_cee_pfccfg_tlv(struct ice_cee_feat_tlv *tlv,
567 			 struct ice_dcbx_cfg *dcbcfg)
568 {
569 	u8 *buf = tlv->tlvinfo;
570 
571 	if (tlv->en_will_err & ICE_CEE_FEAT_TLV_WILLING_M)
572 		dcbcfg->pfc.willing = 1;
573 
574 	/* ------------------------
575 	 * | PFC Enable | PFC TCs |
576 	 * ------------------------
577 	 * | 1 octet    | 1 octet |
578 	 */
579 	dcbcfg->pfc.pfcena = buf[0];
580 	dcbcfg->pfc.pfccap = buf[1];
581 }
582 
583 /**
584  * ice_parse_cee_app_tlv
585  * @tlv: CEE DCBX APP TLV
586  * @dcbcfg: Local store to update APP PRIO data
587  *
588  * Parses CEE DCBX APP PRIO TLV
589  */
590 static void
591 ice_parse_cee_app_tlv(struct ice_cee_feat_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
592 {
593 	u16 len, typelen, offset = 0;
594 	struct ice_cee_app_prio *app;
595 	u8 i;
596 
597 	typelen = NTOHS(tlv->hdr.typelen);
598 	len = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S);
599 
600 	dcbcfg->numapps = len / sizeof(*app);
601 	if (!dcbcfg->numapps)
602 		return;
603 	if (dcbcfg->numapps > ICE_DCBX_MAX_APPS)
604 		dcbcfg->numapps = ICE_DCBX_MAX_APPS;
605 
606 	for (i = 0; i < dcbcfg->numapps; i++) {
607 		u8 up, selector;
608 
609 		app = (struct ice_cee_app_prio *)(tlv->tlvinfo + offset);
610 		for (up = 0; up < ICE_MAX_USER_PRIORITY; up++)
611 			if (app->prio_map & BIT(up))
612 				break;
613 
614 		dcbcfg->app[i].priority = up;
615 
616 		/* Get Selector from lower 2 bits, and convert to IEEE */
617 		selector = (app->upper_oui_sel & ICE_CEE_APP_SELECTOR_M);
618 		switch (selector) {
619 		case ICE_CEE_APP_SEL_ETHTYPE:
620 			dcbcfg->app[i].selector = ICE_APP_SEL_ETHTYPE;
621 			break;
622 		case ICE_CEE_APP_SEL_TCPIP:
623 			dcbcfg->app[i].selector = ICE_APP_SEL_TCPIP;
624 			break;
625 		default:
626 			/* Keep selector as it is for unknown types */
627 			dcbcfg->app[i].selector = selector;
628 		}
629 
630 		dcbcfg->app[i].prot_id = NTOHS(app->protocol);
631 		/* Move to next app */
632 		offset += sizeof(*app);
633 	}
634 }
635 
636 /**
637  * ice_parse_cee_tlv
638  * @tlv: CEE DCBX TLV
639  * @dcbcfg: Local store to update DCBX config data
640  *
641  * Get the TLV subtype and send it to parsing function
642  * based on the subtype value
643  */
644 static void
645 ice_parse_cee_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
646 {
647 	struct ice_cee_feat_tlv *sub_tlv;
648 	u8 subtype, feat_tlv_count = 0;
649 	u16 len, tlvlen, typelen;
650 	u32 ouisubtype;
651 
652 	ouisubtype = NTOHL(tlv->ouisubtype);
653 	subtype = (u8)((ouisubtype & ICE_LLDP_TLV_SUBTYPE_M) >>
654 		       ICE_LLDP_TLV_SUBTYPE_S);
655 	/* Return if not CEE DCBX */
656 	if (subtype != ICE_CEE_DCBX_TYPE)
657 		return;
658 
659 	typelen = NTOHS(tlv->typelen);
660 	tlvlen = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S);
661 	len = sizeof(tlv->typelen) + sizeof(ouisubtype) +
662 		sizeof(struct ice_cee_ctrl_tlv);
663 	/* Return if no CEE DCBX Feature TLVs */
664 	if (tlvlen <= len)
665 		return;
666 
667 	sub_tlv = (struct ice_cee_feat_tlv *)((char *)tlv + len);
668 	while (feat_tlv_count < ICE_CEE_MAX_FEAT_TYPE) {
669 		u16 sublen;
670 
671 		typelen = NTOHS(sub_tlv->hdr.typelen);
672 		sublen = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S);
673 		subtype = (u8)((typelen & ICE_LLDP_TLV_TYPE_M) >>
674 			       ICE_LLDP_TLV_TYPE_S);
675 		switch (subtype) {
676 		case ICE_CEE_SUBTYPE_PG_CFG:
677 			ice_parse_cee_pgcfg_tlv(sub_tlv, dcbcfg);
678 			break;
679 		case ICE_CEE_SUBTYPE_PFC_CFG:
680 			ice_parse_cee_pfccfg_tlv(sub_tlv, dcbcfg);
681 			break;
682 		case ICE_CEE_SUBTYPE_APP_PRI:
683 			ice_parse_cee_app_tlv(sub_tlv, dcbcfg);
684 			break;
685 		default:
686 			return;	/* Invalid Sub-type return */
687 		}
688 		feat_tlv_count++;
689 		/* Move to next sub TLV */
690 		sub_tlv = (struct ice_cee_feat_tlv *)
691 			  ((char *)sub_tlv + sizeof(sub_tlv->hdr.typelen) +
692 			   sublen);
693 	}
694 }
695 
696 /**
697  * ice_parse_org_tlv
698  * @tlv: Organization specific TLV
699  * @dcbcfg: Local store to update ETS REC data
700  *
701  * Currently only IEEE 802.1Qaz TLV is supported, all others
702  * will be returned
703  */
704 static void
705 ice_parse_org_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
706 {
707 	u32 ouisubtype;
708 	u32 oui;
709 
710 	ouisubtype = NTOHL(tlv->ouisubtype);
711 	oui = ((ouisubtype & ICE_LLDP_TLV_OUI_M) >> ICE_LLDP_TLV_OUI_S);
712 	switch (oui) {
713 	case ICE_IEEE_8021QAZ_OUI:
714 		ice_parse_ieee_tlv(tlv, dcbcfg);
715 		break;
716 	case ICE_CEE_DCBX_OUI:
717 		ice_parse_cee_tlv(tlv, dcbcfg);
718 		break;
719 	default:
720 		break;
721 	}
722 }
723 
724 /**
725  * ice_lldp_to_dcb_cfg
726  * @lldpmib: LLDPDU to be parsed
727  * @dcbcfg: store for LLDPDU data
728  *
729  * Parse DCB configuration from the LLDPDU
730  */
731 enum ice_status ice_lldp_to_dcb_cfg(u8 *lldpmib, struct ice_dcbx_cfg *dcbcfg)
732 {
733 	struct ice_lldp_org_tlv *tlv;
734 	enum ice_status ret = ICE_SUCCESS;
735 	u16 offset = 0;
736 	u16 typelen;
737 	u16 type;
738 	u16 len;
739 
740 	if (!lldpmib || !dcbcfg)
741 		return ICE_ERR_PARAM;
742 
743 	/* set to the start of LLDPDU */
744 	lldpmib += ETH_HEADER_LEN;
745 	tlv = (struct ice_lldp_org_tlv *)lldpmib;
746 	while (1) {
747 		typelen = NTOHS(tlv->typelen);
748 		type = ((typelen & ICE_LLDP_TLV_TYPE_M) >> ICE_LLDP_TLV_TYPE_S);
749 		len = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S);
750 		offset += sizeof(typelen) + len;
751 
752 		/* END TLV or beyond LLDPDU size */
753 		if (type == ICE_TLV_TYPE_END || offset > ICE_LLDPDU_SIZE)
754 			break;
755 
756 		switch (type) {
757 		case ICE_TLV_TYPE_ORG:
758 			ice_parse_org_tlv(tlv, dcbcfg);
759 			break;
760 		default:
761 			break;
762 		}
763 
764 		/* Move to next TLV */
765 		tlv = (struct ice_lldp_org_tlv *)
766 		      ((char *)tlv + sizeof(tlv->typelen) + len);
767 	}
768 
769 	return ret;
770 }
771 
772 /**
773  * ice_aq_get_dcb_cfg
774  * @hw: pointer to the HW struct
775  * @mib_type: MIB type for the query
776  * @bridgetype: bridge type for the query (remote)
777  * @dcbcfg: store for LLDPDU data
778  *
779  * Query DCB configuration from the firmware
780  */
781 enum ice_status
782 ice_aq_get_dcb_cfg(struct ice_hw *hw, u8 mib_type, u8 bridgetype,
783 		   struct ice_dcbx_cfg *dcbcfg)
784 {
785 	enum ice_status ret;
786 	u8 *lldpmib;
787 
788 	/* Allocate the LLDPDU */
789 	lldpmib = (u8 *)ice_malloc(hw, ICE_LLDPDU_SIZE);
790 	if (!lldpmib)
791 		return ICE_ERR_NO_MEMORY;
792 
793 	ret = ice_aq_get_lldp_mib(hw, bridgetype, mib_type, (void *)lldpmib,
794 				  ICE_LLDPDU_SIZE, NULL, NULL, NULL);
795 
796 	if (ret == ICE_SUCCESS)
797 		/* Parse LLDP MIB to get DCB configuration */
798 		ret = ice_lldp_to_dcb_cfg(lldpmib, dcbcfg);
799 
800 	ice_free(hw, lldpmib);
801 
802 	return ret;
803 }
804 
805 /**
806  * ice_aq_dcb_ignore_pfc - Ignore PFC for given TCs
807  * @hw: pointer to the HW struct
808  * @tcmap: TC map for request/release any ignore PFC condition
809  * @request: request (true) or release (false) ignore PFC condition
810  * @tcmap_ret: return TCs for which PFC is currently ignored
811  * @cd: pointer to command details structure or NULL
812  *
813  * This sends out request/release to ignore PFC condition for a TC.
814  * It will return the TCs for which PFC is currently ignored. (0x0301)
815  */
816 enum ice_status
817 ice_aq_dcb_ignore_pfc(struct ice_hw *hw, u8 tcmap, bool request, u8 *tcmap_ret,
818 		      struct ice_sq_cd *cd)
819 {
820 	struct ice_aqc_pfc_ignore *cmd;
821 	struct ice_aq_desc desc;
822 	enum ice_status status;
823 
824 	cmd = &desc.params.pfc_ignore;
825 
826 	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_pfc_ignore);
827 
828 	if (request)
829 		cmd->cmd_flags = ICE_AQC_PFC_IGNORE_SET;
830 
831 	cmd->tc_bitmap = tcmap;
832 
833 	status = ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
834 
835 	if (!status && tcmap_ret)
836 		*tcmap_ret = cmd->tc_bitmap;
837 
838 	return status;
839 }
840 
841 /**
842  * ice_aq_start_stop_dcbx - Start/Stop DCBX service in FW
843  * @hw: pointer to the HW struct
844  * @start_dcbx_agent: True if DCBX Agent needs to be started
845  *		      False if DCBX Agent needs to be stopped
846  * @dcbx_agent_status: FW indicates back the DCBX agent status
847  *		       True if DCBX Agent is active
848  *		       False if DCBX Agent is stopped
849  * @cd: pointer to command details structure or NULL
850  *
851  * Start/Stop the embedded dcbx Agent. In case that this wrapper function
852  * returns ICE_SUCCESS, caller will need to check if FW returns back the same
853  * value as stated in dcbx_agent_status, and react accordingly. (0x0A09)
854  */
855 enum ice_status
856 ice_aq_start_stop_dcbx(struct ice_hw *hw, bool start_dcbx_agent,
857 		       bool *dcbx_agent_status, struct ice_sq_cd *cd)
858 {
859 	struct ice_aqc_lldp_stop_start_specific_agent *cmd;
860 	enum ice_status status;
861 	struct ice_aq_desc desc;
862 	u16 opcode;
863 
864 	cmd = &desc.params.lldp_agent_ctrl;
865 
866 	opcode = ice_aqc_opc_lldp_stop_start_specific_agent;
867 
868 	ice_fill_dflt_direct_cmd_desc(&desc, opcode);
869 
870 	if (start_dcbx_agent)
871 		cmd->command = ICE_AQC_START_STOP_AGENT_START_DCBX;
872 
873 	status = ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
874 
875 	*dcbx_agent_status = false;
876 
877 	if (status == ICE_SUCCESS &&
878 	    cmd->command == ICE_AQC_START_STOP_AGENT_START_DCBX)
879 		*dcbx_agent_status = true;
880 
881 	return status;
882 }
883 
884 /**
885  * ice_aq_get_cee_dcb_cfg
886  * @hw: pointer to the HW struct
887  * @buff: response buffer that stores CEE operational configuration
888  * @cd: pointer to command details structure or NULL
889  *
890  * Get CEE DCBX mode operational configuration from firmware (0x0A07)
891  */
892 enum ice_status
893 ice_aq_get_cee_dcb_cfg(struct ice_hw *hw,
894 		       struct ice_aqc_get_cee_dcb_cfg_resp *buff,
895 		       struct ice_sq_cd *cd)
896 {
897 	struct ice_aq_desc desc;
898 
899 	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_cee_dcb_cfg);
900 
901 	return ice_aq_send_cmd(hw, &desc, (void *)buff, sizeof(*buff), cd);
902 }
903 
904 /**
905  * ice_aq_query_pfc_mode - Query PFC mode
906  * @hw: pointer to the HW struct
907  * @pfcmode_ret: Return PFC mode
908  * @cd: pointer to command details structure or NULL
909  *
910  * This will return an indication if DSCP-based PFC or VLAN-based PFC
911  * is enabled. (0x0302)
912  */
913 enum ice_status
914 ice_aq_query_pfc_mode(struct ice_hw *hw, u8 *pfcmode_ret, struct ice_sq_cd *cd)
915 {
916 	struct ice_aqc_set_query_pfc_mode *cmd;
917 	struct ice_aq_desc desc;
918 	enum ice_status status;
919 
920 	cmd = &desc.params.set_query_pfc_mode;
921 
922 	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_query_pfc_mode);
923 
924 	status = ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
925 
926 	if (!status)
927 		*pfcmode_ret = cmd->pfc_mode;
928 
929 	return status;
930 }
931 
932 /**
933  * ice_aq_set_pfc_mode - Set PFC mode
934  * @hw: pointer to the HW struct
935  * @pfcmode_set: set-value of PFC mode
936  * @pfcmode_ret: return value of PFC mode, written by FW
937  * @cd: pointer to command details structure or NULL
938  *
939  * This AQ call configures the PFC mdoe to DSCP-based PFC mode or VLAN
940  * -based PFC (0x0303)
941  */
942 enum ice_status
943 ice_aq_set_pfc_mode(struct ice_hw *hw, u8 pfcmode_set, u8 *pfcmode_ret,
944 		    struct ice_sq_cd *cd)
945 {
946 	struct ice_aqc_set_query_pfc_mode *cmd;
947 	struct ice_aq_desc desc;
948 	enum ice_status status;
949 
950 	if (pfcmode_set > ICE_AQC_PFC_DSCP_BASED_PFC)
951 		return ICE_ERR_PARAM;
952 
953 	cmd = &desc.params.set_query_pfc_mode;
954 
955 	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_set_pfc_mode);
956 
957 	cmd->pfc_mode = pfcmode_set;
958 
959 	status = ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
960 
961 	if (!status)
962 		*pfcmode_ret = cmd->pfc_mode;
963 
964 	return status;
965 }
966 
967 /**
968  * ice_aq_set_dcb_parameters - Set DCB parameters
969  * @hw: pointer to the HW struct
970  * @dcb_enable: True if DCB configuration needs to be applied
971  * @cd: pointer to command details structure or NULL
972  *
973  * This AQ command will tell FW if it will apply or not apply the default DCB
974  * configuration when link up (0x0306).
975  */
976 enum ice_status
977 ice_aq_set_dcb_parameters(struct ice_hw *hw, bool dcb_enable,
978 			  struct ice_sq_cd *cd)
979 {
980 	struct ice_aqc_set_dcb_params *cmd;
981 	struct ice_aq_desc desc;
982 
983 	cmd = &desc.params.set_dcb_params;
984 
985 	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_set_dcb_params);
986 
987 	cmd->valid_flags = ICE_AQC_LINK_UP_DCB_CFG_VALID;
988 	if (dcb_enable)
989 		cmd->cmd_flags = ICE_AQC_LINK_UP_DCB_CFG;
990 
991 	return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
992 }
993 
994 /**
995  * ice_cee_to_dcb_cfg
996  * @cee_cfg: pointer to CEE configuration struct
997  * @pi: port information structure
998  *
999  * Convert CEE configuration from firmware to DCB configuration
1000  */
1001 static void
1002 ice_cee_to_dcb_cfg(struct ice_aqc_get_cee_dcb_cfg_resp *cee_cfg,
1003 		   struct ice_port_info *pi)
1004 {
1005 	u32 status, tlv_status = LE32_TO_CPU(cee_cfg->tlv_status);
1006 	u32 ice_aqc_cee_status_mask, ice_aqc_cee_status_shift;
1007 	u8 i, j, err, sync, oper, app_index, ice_app_sel_type;
1008 	u16 app_prio = LE16_TO_CPU(cee_cfg->oper_app_prio);
1009 	u16 ice_aqc_cee_app_mask, ice_aqc_cee_app_shift;
1010 	struct ice_dcbx_cfg *cmp_dcbcfg, *dcbcfg;
1011 	u16 ice_app_prot_id_type;
1012 
1013 	dcbcfg = &pi->qos_cfg.local_dcbx_cfg;
1014 	dcbcfg->dcbx_mode = ICE_DCBX_MODE_CEE;
1015 	dcbcfg->tlv_status = tlv_status;
1016 
1017 	/* CEE PG data */
1018 	dcbcfg->etscfg.maxtcs = cee_cfg->oper_num_tc;
1019 
1020 	/* Note that the FW creates the oper_prio_tc nibbles reversed
1021 	 * from those in the CEE Priority Group sub-TLV.
1022 	 */
1023 	for (i = 0; i < ICE_MAX_TRAFFIC_CLASS / 2; i++) {
1024 		dcbcfg->etscfg.prio_table[i * 2] =
1025 			((cee_cfg->oper_prio_tc[i] & ICE_CEE_PGID_PRIO_0_M) >>
1026 			 ICE_CEE_PGID_PRIO_0_S);
1027 		dcbcfg->etscfg.prio_table[i * 2 + 1] =
1028 			((cee_cfg->oper_prio_tc[i] & ICE_CEE_PGID_PRIO_1_M) >>
1029 			 ICE_CEE_PGID_PRIO_1_S);
1030 	}
1031 
1032 	ice_for_each_traffic_class(i) {
1033 		dcbcfg->etscfg.tcbwtable[i] = cee_cfg->oper_tc_bw[i];
1034 
1035 		if (dcbcfg->etscfg.prio_table[i] == ICE_CEE_PGID_STRICT) {
1036 			/* Map it to next empty TC */
1037 			dcbcfg->etscfg.prio_table[i] = cee_cfg->oper_num_tc - 1;
1038 			dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_STRICT;
1039 		} else {
1040 			dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_ETS;
1041 		}
1042 	}
1043 
1044 	/* CEE PFC data */
1045 	dcbcfg->pfc.pfcena = cee_cfg->oper_pfc_en;
1046 	dcbcfg->pfc.pfccap = ICE_MAX_TRAFFIC_CLASS;
1047 
1048 	/* CEE APP TLV data */
1049 	if (dcbcfg->app_mode == ICE_DCBX_APPS_NON_WILLING)
1050 		cmp_dcbcfg = &pi->qos_cfg.desired_dcbx_cfg;
1051 	else
1052 		cmp_dcbcfg = &pi->qos_cfg.remote_dcbx_cfg;
1053 
1054 	app_index = 0;
1055 	for (i = 0; i < 3; i++) {
1056 		if (i == 0) {
1057 			/* FCoE APP */
1058 			ice_aqc_cee_status_mask = ICE_AQC_CEE_FCOE_STATUS_M;
1059 			ice_aqc_cee_status_shift = ICE_AQC_CEE_FCOE_STATUS_S;
1060 			ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_FCOE_M;
1061 			ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_FCOE_S;
1062 			ice_app_sel_type = ICE_APP_SEL_ETHTYPE;
1063 			ice_app_prot_id_type = ICE_APP_PROT_ID_FCOE;
1064 		} else if (i == 1) {
1065 			/* iSCSI APP */
1066 			ice_aqc_cee_status_mask = ICE_AQC_CEE_ISCSI_STATUS_M;
1067 			ice_aqc_cee_status_shift = ICE_AQC_CEE_ISCSI_STATUS_S;
1068 			ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_ISCSI_M;
1069 			ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_ISCSI_S;
1070 			ice_app_sel_type = ICE_APP_SEL_TCPIP;
1071 			ice_app_prot_id_type = ICE_APP_PROT_ID_ISCSI;
1072 
1073 			for (j = 0; j < cmp_dcbcfg->numapps; j++) {
1074 				u16 prot_id = cmp_dcbcfg->app[j].prot_id;
1075 				u8 sel = cmp_dcbcfg->app[j].selector;
1076 
1077 				if  (sel == ICE_APP_SEL_TCPIP &&
1078 				     (prot_id == ICE_APP_PROT_ID_ISCSI ||
1079 				      prot_id == ICE_APP_PROT_ID_ISCSI_860)) {
1080 					ice_app_prot_id_type = prot_id;
1081 					break;
1082 				}
1083 			}
1084 		} else {
1085 			/* FIP APP */
1086 			ice_aqc_cee_status_mask = ICE_AQC_CEE_FIP_STATUS_M;
1087 			ice_aqc_cee_status_shift = ICE_AQC_CEE_FIP_STATUS_S;
1088 			ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_FIP_M;
1089 			ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_FIP_S;
1090 			ice_app_sel_type = ICE_APP_SEL_ETHTYPE;
1091 			ice_app_prot_id_type = ICE_APP_PROT_ID_FIP;
1092 		}
1093 
1094 		status = (tlv_status & ice_aqc_cee_status_mask) >>
1095 			 ice_aqc_cee_status_shift;
1096 		err = (status & ICE_TLV_STATUS_ERR) ? 1 : 0;
1097 		sync = (status & ICE_TLV_STATUS_SYNC) ? 1 : 0;
1098 		oper = (status & ICE_TLV_STATUS_OPER) ? 1 : 0;
1099 		/* Add FCoE/iSCSI/FIP APP if Error is False and
1100 		 * Oper/Sync is True
1101 		 */
1102 		if (!err && sync && oper) {
1103 			dcbcfg->app[app_index].priority =
1104 				(app_prio & ice_aqc_cee_app_mask) >>
1105 				ice_aqc_cee_app_shift;
1106 			dcbcfg->app[app_index].selector = ice_app_sel_type;
1107 			dcbcfg->app[app_index].prot_id = ice_app_prot_id_type;
1108 			app_index++;
1109 		}
1110 	}
1111 
1112 	dcbcfg->numapps = app_index;
1113 }
1114 
1115 /**
1116  * ice_get_ieee_dcb_cfg
1117  * @pi: port information structure
1118  * @dcbx_mode: mode of DCBX (IEEE or CEE)
1119  *
1120  * Get IEEE or CEE mode DCB configuration from the Firmware
1121  */
1122 STATIC enum ice_status
1123 ice_get_ieee_or_cee_dcb_cfg(struct ice_port_info *pi, u8 dcbx_mode)
1124 {
1125 	struct ice_dcbx_cfg *dcbx_cfg = NULL;
1126 	enum ice_status ret;
1127 
1128 	if (!pi)
1129 		return ICE_ERR_PARAM;
1130 
1131 	if (dcbx_mode == ICE_DCBX_MODE_IEEE)
1132 		dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg;
1133 	else if (dcbx_mode == ICE_DCBX_MODE_CEE)
1134 		dcbx_cfg = &pi->qos_cfg.desired_dcbx_cfg;
1135 
1136 	/* Get Local DCB Config in case of ICE_DCBX_MODE_IEEE
1137 	 * or get CEE DCB Desired Config in case of ICE_DCBX_MODE_CEE
1138 	 */
1139 	ret = ice_aq_get_dcb_cfg(pi->hw, ICE_AQ_LLDP_MIB_LOCAL,
1140 				 ICE_AQ_LLDP_BRID_TYPE_NEAREST_BRID, dcbx_cfg);
1141 	if (ret)
1142 		goto out;
1143 
1144 	/* Get Remote DCB Config */
1145 	dcbx_cfg = &pi->qos_cfg.remote_dcbx_cfg;
1146 	ret = ice_aq_get_dcb_cfg(pi->hw, ICE_AQ_LLDP_MIB_REMOTE,
1147 				 ICE_AQ_LLDP_BRID_TYPE_NEAREST_BRID, dcbx_cfg);
1148 	/* Don't treat ENOENT as an error for Remote MIBs */
1149 	if (pi->hw->adminq.sq_last_status == ICE_AQ_RC_ENOENT)
1150 		ret = ICE_SUCCESS;
1151 
1152 out:
1153 	return ret;
1154 }
1155 
1156 /**
1157  * ice_get_dcb_cfg
1158  * @pi: port information structure
1159  *
1160  * Get DCB configuration from the Firmware
1161  */
1162 enum ice_status ice_get_dcb_cfg(struct ice_port_info *pi)
1163 {
1164 	struct ice_aqc_get_cee_dcb_cfg_resp cee_cfg;
1165 	struct ice_dcbx_cfg *dcbx_cfg;
1166 	enum ice_status ret;
1167 
1168 	if (!pi)
1169 		return ICE_ERR_PARAM;
1170 
1171 	ret = ice_aq_get_cee_dcb_cfg(pi->hw, &cee_cfg, NULL);
1172 	if (ret == ICE_SUCCESS) {
1173 		/* CEE mode */
1174 		ret = ice_get_ieee_or_cee_dcb_cfg(pi, ICE_DCBX_MODE_CEE);
1175 		ice_cee_to_dcb_cfg(&cee_cfg, pi);
1176 	} else if (pi->hw->adminq.sq_last_status == ICE_AQ_RC_ENOENT) {
1177 		/* CEE mode not enabled try querying IEEE data */
1178 		dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg;
1179 		dcbx_cfg->dcbx_mode = ICE_DCBX_MODE_IEEE;
1180 		ret = ice_get_ieee_or_cee_dcb_cfg(pi, ICE_DCBX_MODE_IEEE);
1181 	}
1182 
1183 	return ret;
1184 }
1185 
1186 /**
1187  * ice_init_dcb
1188  * @hw: pointer to the HW struct
1189  * @enable_mib_change: enable MIB change event
1190  *
1191  * Update DCB configuration from the Firmware
1192  */
1193 enum ice_status ice_init_dcb(struct ice_hw *hw, bool enable_mib_change)
1194 {
1195 	struct ice_qos_cfg *qos_cfg = &hw->port_info->qos_cfg;
1196 	enum ice_status ret = ICE_SUCCESS;
1197 
1198 	if (!hw->func_caps.common_cap.dcb)
1199 		return ICE_ERR_NOT_SUPPORTED;
1200 
1201 	qos_cfg->is_sw_lldp = true;
1202 
1203 	/* Get DCBX status */
1204 	qos_cfg->dcbx_status = ice_get_dcbx_status(hw);
1205 
1206 	if (qos_cfg->dcbx_status == ICE_DCBX_STATUS_DONE ||
1207 	    qos_cfg->dcbx_status == ICE_DCBX_STATUS_IN_PROGRESS ||
1208 	    qos_cfg->dcbx_status == ICE_DCBX_STATUS_NOT_STARTED) {
1209 		/* Get current DCBX configuration */
1210 		ret = ice_get_dcb_cfg(hw->port_info);
1211 		if (ret)
1212 			return ret;
1213 		qos_cfg->is_sw_lldp = false;
1214 	} else if (qos_cfg->dcbx_status == ICE_DCBX_STATUS_DIS) {
1215 		return ICE_ERR_NOT_READY;
1216 	}
1217 
1218 	/* Configure the LLDP MIB change event */
1219 	if (enable_mib_change) {
1220 		ret = ice_aq_cfg_lldp_mib_change(hw, true, NULL);
1221 		if (ret)
1222 			qos_cfg->is_sw_lldp = true;
1223 	}
1224 
1225 	return ret;
1226 }
1227 
1228 /**
1229  * ice_cfg_lldp_mib_change
1230  * @hw: pointer to the HW struct
1231  * @ena_mib: enable/disable MIB change event
1232  *
1233  * Configure (disable/enable) MIB
1234  */
1235 enum ice_status ice_cfg_lldp_mib_change(struct ice_hw *hw, bool ena_mib)
1236 {
1237 	struct ice_qos_cfg *qos_cfg = &hw->port_info->qos_cfg;
1238 	enum ice_status ret;
1239 
1240 	if (!hw->func_caps.common_cap.dcb)
1241 		return ICE_ERR_NOT_SUPPORTED;
1242 
1243 	/* Get DCBX status */
1244 	qos_cfg->dcbx_status = ice_get_dcbx_status(hw);
1245 
1246 	if (qos_cfg->dcbx_status == ICE_DCBX_STATUS_DIS)
1247 		return ICE_ERR_NOT_READY;
1248 
1249 	ret = ice_aq_cfg_lldp_mib_change(hw, ena_mib, NULL);
1250 	if (!ret)
1251 		qos_cfg->is_sw_lldp = !ena_mib;
1252 
1253 	return ret;
1254 }
1255 
1256 /**
1257  * ice_add_ieee_ets_common_tlv
1258  * @buf: Data buffer to be populated with ice_dcb_ets_cfg data
1259  * @ets_cfg: Container for ice_dcb_ets_cfg data
1260  *
1261  * Populate the TLV buffer with ice_dcb_ets_cfg data
1262  */
1263 static void
1264 ice_add_ieee_ets_common_tlv(u8 *buf, struct ice_dcb_ets_cfg *ets_cfg)
1265 {
1266 	u8 priority0, priority1;
1267 	u8 offset = 0;
1268 	int i;
1269 
1270 	/* Priority Assignment Table (4 octets)
1271 	 * Octets:|    1    |    2    |    3    |    4    |
1272 	 *        -----------------------------------------
1273 	 *        |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
1274 	 *        -----------------------------------------
1275 	 *   Bits:|7  4|3  0|7  4|3  0|7  4|3  0|7  4|3  0|
1276 	 *        -----------------------------------------
1277 	 */
1278 	for (i = 0; i < ICE_MAX_TRAFFIC_CLASS / 2; i++) {
1279 		priority0 = ets_cfg->prio_table[i * 2] & 0xF;
1280 		priority1 = ets_cfg->prio_table[i * 2 + 1] & 0xF;
1281 		buf[offset] = (priority0 << ICE_IEEE_ETS_PRIO_1_S) | priority1;
1282 		offset++;
1283 	}
1284 
1285 	/* TC Bandwidth Table (8 octets)
1286 	 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
1287 	 *        ---------------------------------
1288 	 *        |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
1289 	 *        ---------------------------------
1290 	 *
1291 	 * TSA Assignment Table (8 octets)
1292 	 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
1293 	 *        ---------------------------------
1294 	 *        |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
1295 	 *        ---------------------------------
1296 	 */
1297 	ice_for_each_traffic_class(i) {
1298 		buf[offset] = ets_cfg->tcbwtable[i];
1299 		buf[ICE_MAX_TRAFFIC_CLASS + offset] = ets_cfg->tsatable[i];
1300 		offset++;
1301 	}
1302 }
1303 
1304 /**
1305  * ice_add_ieee_ets_tlv - Prepare ETS TLV in IEEE format
1306  * @tlv: Fill the ETS config data in IEEE format
1307  * @dcbcfg: Local store which holds the DCB Config
1308  *
1309  * Prepare IEEE 802.1Qaz ETS CFG TLV
1310  */
1311 static void
1312 ice_add_ieee_ets_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
1313 {
1314 	struct ice_dcb_ets_cfg *etscfg;
1315 	u8 *buf = tlv->tlvinfo;
1316 	u8 maxtcwilling = 0;
1317 	u32 ouisubtype;
1318 	u16 typelen;
1319 
1320 	typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1321 		   ICE_IEEE_ETS_TLV_LEN);
1322 	tlv->typelen = HTONS(typelen);
1323 
1324 	ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
1325 		      ICE_IEEE_SUBTYPE_ETS_CFG);
1326 	tlv->ouisubtype = HTONL(ouisubtype);
1327 
1328 	/* First Octet post subtype
1329 	 * --------------------------
1330 	 * |will-|CBS  | Re-  | Max |
1331 	 * |ing  |     |served| TCs |
1332 	 * --------------------------
1333 	 * |1bit | 1bit|3 bits|3bits|
1334 	 */
1335 	etscfg = &dcbcfg->etscfg;
1336 	if (etscfg->willing)
1337 		maxtcwilling = BIT(ICE_IEEE_ETS_WILLING_S);
1338 	maxtcwilling |= etscfg->maxtcs & ICE_IEEE_ETS_MAXTC_M;
1339 	buf[0] = maxtcwilling;
1340 
1341 	/* Begin adding at Priority Assignment Table (offset 1 in buf) */
1342 	ice_add_ieee_ets_common_tlv(&buf[1], etscfg);
1343 }
1344 
1345 /**
1346  * ice_add_ieee_etsrec_tlv - Prepare ETS Recommended TLV in IEEE format
1347  * @tlv: Fill ETS Recommended TLV in IEEE format
1348  * @dcbcfg: Local store which holds the DCB Config
1349  *
1350  * Prepare IEEE 802.1Qaz ETS REC TLV
1351  */
1352 static void
1353 ice_add_ieee_etsrec_tlv(struct ice_lldp_org_tlv *tlv,
1354 			struct ice_dcbx_cfg *dcbcfg)
1355 {
1356 	struct ice_dcb_ets_cfg *etsrec;
1357 	u8 *buf = tlv->tlvinfo;
1358 	u32 ouisubtype;
1359 	u16 typelen;
1360 
1361 	typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1362 		   ICE_IEEE_ETS_TLV_LEN);
1363 	tlv->typelen = HTONS(typelen);
1364 
1365 	ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
1366 		      ICE_IEEE_SUBTYPE_ETS_REC);
1367 	tlv->ouisubtype = HTONL(ouisubtype);
1368 
1369 	etsrec = &dcbcfg->etsrec;
1370 
1371 	/* First Octet is reserved */
1372 	/* Begin adding at Priority Assignment Table (offset 1 in buf) */
1373 	ice_add_ieee_ets_common_tlv(&buf[1], etsrec);
1374 }
1375 
1376 /**
1377  * ice_add_ieee_pfc_tlv - Prepare PFC TLV in IEEE format
1378  * @tlv: Fill PFC TLV in IEEE format
1379  * @dcbcfg: Local store which holds the PFC CFG data
1380  *
1381  * Prepare IEEE 802.1Qaz PFC CFG TLV
1382  */
1383 static void
1384 ice_add_ieee_pfc_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
1385 {
1386 	u8 *buf = tlv->tlvinfo;
1387 	u32 ouisubtype;
1388 	u16 typelen;
1389 
1390 	typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1391 		   ICE_IEEE_PFC_TLV_LEN);
1392 	tlv->typelen = HTONS(typelen);
1393 
1394 	ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
1395 		      ICE_IEEE_SUBTYPE_PFC_CFG);
1396 	tlv->ouisubtype = HTONL(ouisubtype);
1397 
1398 	/* ----------------------------------------
1399 	 * |will-|MBC  | Re-  | PFC |  PFC Enable  |
1400 	 * |ing  |     |served| cap |              |
1401 	 * -----------------------------------------
1402 	 * |1bit | 1bit|2 bits|4bits| 1 octet      |
1403 	 */
1404 	if (dcbcfg->pfc.willing)
1405 		buf[0] = BIT(ICE_IEEE_PFC_WILLING_S);
1406 
1407 	if (dcbcfg->pfc.mbc)
1408 		buf[0] |= BIT(ICE_IEEE_PFC_MBC_S);
1409 
1410 	buf[0] |= dcbcfg->pfc.pfccap & 0xF;
1411 	buf[1] = dcbcfg->pfc.pfcena;
1412 }
1413 
1414 /**
1415  * ice_add_ieee_app_pri_tlv -  Prepare APP TLV in IEEE format
1416  * @tlv: Fill APP TLV in IEEE format
1417  * @dcbcfg: Local store which holds the APP CFG data
1418  *
1419  * Prepare IEEE 802.1Qaz APP CFG TLV
1420  */
1421 static void
1422 ice_add_ieee_app_pri_tlv(struct ice_lldp_org_tlv *tlv,
1423 			 struct ice_dcbx_cfg *dcbcfg)
1424 {
1425 	u16 typelen, len, offset = 0;
1426 	u8 priority, selector, i = 0;
1427 	u8 *buf = tlv->tlvinfo;
1428 	u32 ouisubtype;
1429 
1430 	/* No APP TLVs then just return */
1431 	if (dcbcfg->numapps == 0)
1432 		return;
1433 	ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
1434 		      ICE_IEEE_SUBTYPE_APP_PRI);
1435 	tlv->ouisubtype = HTONL(ouisubtype);
1436 
1437 	/* Move offset to App Priority Table */
1438 	offset++;
1439 	/* Application Priority Table (3 octets)
1440 	 * Octets:|         1          |    2    |    3    |
1441 	 *        -----------------------------------------
1442 	 *        |Priority|Rsrvd| Sel |    Protocol ID    |
1443 	 *        -----------------------------------------
1444 	 *   Bits:|23    21|20 19|18 16|15                0|
1445 	 *        -----------------------------------------
1446 	 */
1447 	while (i < dcbcfg->numapps) {
1448 		priority = dcbcfg->app[i].priority & 0x7;
1449 		selector = dcbcfg->app[i].selector & 0x7;
1450 		buf[offset] = (priority << ICE_IEEE_APP_PRIO_S) | selector;
1451 		buf[offset + 1] = (dcbcfg->app[i].prot_id >> 0x8) & 0xFF;
1452 		buf[offset + 2] = dcbcfg->app[i].prot_id & 0xFF;
1453 		/* Move to next app */
1454 		offset += 3;
1455 		i++;
1456 		if (i >= ICE_DCBX_MAX_APPS)
1457 			break;
1458 	}
1459 	/* len includes size of ouisubtype + 1 reserved + 3*numapps */
1460 	len = sizeof(tlv->ouisubtype) + 1 + (i * 3);
1461 	typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | (len & 0x1FF));
1462 	tlv->typelen = HTONS(typelen);
1463 }
1464 
1465 /**
1466  * ice_add_dcb_tlv - Add all IEEE TLVs
1467  * @tlv: Fill TLV data in IEEE format
1468  * @dcbcfg: Local store which holds the DCB Config
1469  * @tlvid: Type of IEEE TLV
1470  *
1471  * Add tlv information
1472  */
1473 static void
1474 ice_add_dcb_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg,
1475 		u16 tlvid)
1476 {
1477 	switch (tlvid) {
1478 	case ICE_IEEE_TLV_ID_ETS_CFG:
1479 		ice_add_ieee_ets_tlv(tlv, dcbcfg);
1480 		break;
1481 	case ICE_IEEE_TLV_ID_ETS_REC:
1482 		ice_add_ieee_etsrec_tlv(tlv, dcbcfg);
1483 		break;
1484 	case ICE_IEEE_TLV_ID_PFC_CFG:
1485 		ice_add_ieee_pfc_tlv(tlv, dcbcfg);
1486 		break;
1487 	case ICE_IEEE_TLV_ID_APP_PRI:
1488 		ice_add_ieee_app_pri_tlv(tlv, dcbcfg);
1489 		break;
1490 	default:
1491 		break;
1492 	}
1493 }
1494 
1495 /**
1496  * ice_dcb_cfg_to_lldp - Convert DCB configuration to MIB format
1497  * @lldpmib: pointer to the HW struct
1498  * @miblen: length of LLDP MIB
1499  * @dcbcfg: Local store which holds the DCB Config
1500  *
1501  * Convert the DCB configuration to MIB format
1502  */
1503 void ice_dcb_cfg_to_lldp(u8 *lldpmib, u16 *miblen, struct ice_dcbx_cfg *dcbcfg)
1504 {
1505 	u16 len, offset = 0, tlvid = ICE_TLV_ID_START;
1506 	struct ice_lldp_org_tlv *tlv;
1507 	u16 typelen;
1508 
1509 	tlv = (struct ice_lldp_org_tlv *)lldpmib;
1510 	while (1) {
1511 		ice_add_dcb_tlv(tlv, dcbcfg, tlvid++);
1512 		typelen = NTOHS(tlv->typelen);
1513 		len = (typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S;
1514 		if (len)
1515 			offset += len + 2;
1516 		/* END TLV or beyond LLDPDU size */
1517 		if (tlvid >= ICE_TLV_ID_END_OF_LLDPPDU ||
1518 		    offset > ICE_LLDPDU_SIZE)
1519 			break;
1520 		/* Move to next TLV */
1521 		if (len)
1522 			tlv = (struct ice_lldp_org_tlv *)
1523 				((char *)tlv + sizeof(tlv->typelen) + len);
1524 	}
1525 	*miblen = offset;
1526 }
1527 
1528 /**
1529  * ice_set_dcb_cfg - Set the local LLDP MIB to FW
1530  * @pi: port information structure
1531  *
1532  * Set DCB configuration to the Firmware
1533  */
1534 enum ice_status ice_set_dcb_cfg(struct ice_port_info *pi)
1535 {
1536 	u8 mib_type, *lldpmib = NULL;
1537 	struct ice_dcbx_cfg *dcbcfg;
1538 	enum ice_status ret;
1539 	struct ice_hw *hw;
1540 	u16 miblen;
1541 
1542 	if (!pi)
1543 		return ICE_ERR_PARAM;
1544 
1545 	hw = pi->hw;
1546 
1547 	/* update the HW local config */
1548 	dcbcfg = &pi->qos_cfg.local_dcbx_cfg;
1549 	/* Allocate the LLDPDU */
1550 	lldpmib = (u8 *)ice_malloc(hw, ICE_LLDPDU_SIZE);
1551 	if (!lldpmib)
1552 		return ICE_ERR_NO_MEMORY;
1553 
1554 	mib_type = SET_LOCAL_MIB_TYPE_LOCAL_MIB;
1555 	if (dcbcfg->app_mode == ICE_DCBX_APPS_NON_WILLING)
1556 		mib_type |= SET_LOCAL_MIB_TYPE_CEE_NON_WILLING;
1557 
1558 	ice_dcb_cfg_to_lldp(lldpmib, &miblen, dcbcfg);
1559 	ret = ice_aq_set_lldp_mib(hw, mib_type, (void *)lldpmib, miblen,
1560 				  NULL);
1561 
1562 	ice_free(hw, lldpmib);
1563 
1564 	return ret;
1565 }
1566 
1567 /**
1568  * ice_aq_query_port_ets - query port ETS configuration
1569  * @pi: port information structure
1570  * @buf: pointer to buffer
1571  * @buf_size: buffer size in bytes
1572  * @cd: pointer to command details structure or NULL
1573  *
1574  * query current port ETS configuration
1575  */
1576 enum ice_status
1577 ice_aq_query_port_ets(struct ice_port_info *pi,
1578 		      struct ice_aqc_port_ets_elem *buf, u16 buf_size,
1579 		      struct ice_sq_cd *cd)
1580 {
1581 	struct ice_aqc_query_port_ets *cmd;
1582 	struct ice_aq_desc desc;
1583 	enum ice_status status;
1584 
1585 	if (!pi)
1586 		return ICE_ERR_PARAM;
1587 	cmd = &desc.params.port_ets;
1588 	ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_query_port_ets);
1589 	cmd->port_teid = pi->root->info.node_teid;
1590 
1591 	status = ice_aq_send_cmd(pi->hw, &desc, buf, buf_size, cd);
1592 	return status;
1593 }
1594 
1595 /**
1596  * ice_update_port_tc_tree_cfg - update TC tree configuration
1597  * @pi: port information structure
1598  * @buf: pointer to buffer
1599  *
1600  * update the SW DB with the new TC changes
1601  */
1602 enum ice_status
1603 ice_update_port_tc_tree_cfg(struct ice_port_info *pi,
1604 			    struct ice_aqc_port_ets_elem *buf)
1605 {
1606 	struct ice_sched_node *node, *tc_node;
1607 	struct ice_aqc_txsched_elem_data elem;
1608 	enum ice_status status = ICE_SUCCESS;
1609 	u32 teid1, teid2;
1610 	u8 i, j;
1611 
1612 	if (!pi)
1613 		return ICE_ERR_PARAM;
1614 	/* suspend the missing TC nodes */
1615 	for (i = 0; i < pi->root->num_children; i++) {
1616 		teid1 = LE32_TO_CPU(pi->root->children[i]->info.node_teid);
1617 		ice_for_each_traffic_class(j) {
1618 			teid2 = LE32_TO_CPU(buf->tc_node_teid[j]);
1619 			if (teid1 == teid2)
1620 				break;
1621 		}
1622 		if (j < ICE_MAX_TRAFFIC_CLASS)
1623 			continue;
1624 		/* TC is missing */
1625 		pi->root->children[i]->in_use = false;
1626 	}
1627 	/* add the new TC nodes */
1628 	ice_for_each_traffic_class(j) {
1629 		teid2 = LE32_TO_CPU(buf->tc_node_teid[j]);
1630 		if (teid2 == ICE_INVAL_TEID)
1631 			continue;
1632 		/* Is it already present in the tree ? */
1633 		for (i = 0; i < pi->root->num_children; i++) {
1634 			tc_node = pi->root->children[i];
1635 			if (!tc_node)
1636 				continue;
1637 			teid1 = LE32_TO_CPU(tc_node->info.node_teid);
1638 			if (teid1 == teid2) {
1639 				tc_node->tc_num = j;
1640 				tc_node->in_use = true;
1641 				break;
1642 			}
1643 		}
1644 		if (i < pi->root->num_children)
1645 			continue;
1646 		/* new TC */
1647 		status = ice_sched_query_elem(pi->hw, teid2, &elem);
1648 		if (!status)
1649 			status = ice_sched_add_node(pi, 1, &elem);
1650 		if (status)
1651 			break;
1652 		/* update the TC number */
1653 		node = ice_sched_find_node_by_teid(pi->root, teid2);
1654 		if (node)
1655 			node->tc_num = j;
1656 	}
1657 	return status;
1658 }
1659 
1660 /**
1661  * ice_query_port_ets - query port ETS configuration
1662  * @pi: port information structure
1663  * @buf: pointer to buffer
1664  * @buf_size: buffer size in bytes
1665  * @cd: pointer to command details structure or NULL
1666  *
1667  * query current port ETS configuration and update the
1668  * SW DB with the TC changes
1669  */
1670 enum ice_status
1671 ice_query_port_ets(struct ice_port_info *pi,
1672 		   struct ice_aqc_port_ets_elem *buf, u16 buf_size,
1673 		   struct ice_sq_cd *cd)
1674 {
1675 	enum ice_status status;
1676 
1677 	ice_acquire_lock(&pi->sched_lock);
1678 	status = ice_aq_query_port_ets(pi, buf, buf_size, cd);
1679 	if (!status)
1680 		status = ice_update_port_tc_tree_cfg(pi, buf);
1681 	ice_release_lock(&pi->sched_lock);
1682 	return status;
1683 }
1684