1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2019, Intel Corporation. */
4 #include "ice_common.h"
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
19 * Requests the complete LLDP MIB (entire packet). (0x0A00)
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,
26 struct ice_aqc_lldp_get_mib *cmd;
27 struct ice_aq_desc desc;
30 cmd = &desc.params.lldp_get_mib;
32 if (buf_size == 0 || !buf)
35 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_get_mib);
37 cmd->type = mib_type & ICE_AQ_LLDP_MIB_TYPE_M;
38 cmd->type |= FIELD_PREP(ICE_AQ_LLDP_BRID_TYPE_M, bridge_type);
40 desc.datalen = cpu_to_le16(buf_size);
42 status = ice_aq_send_cmd(hw, &desc, buf, buf_size, cd);
45 *local_len = le16_to_cpu(cmd->local_len);
47 *remote_len = le16_to_cpu(cmd->remote_len);
54 * ice_aq_cfg_lldp_mib_change
55 * @hw: pointer to the HW struct
56 * @ena_update: Enable or Disable event posting
57 * @cd: pointer to command details structure or NULL
59 * Enable or Disable posting of an event on ARQ when LLDP MIB
60 * associated with the interface changes (0x0A01)
63 ice_aq_cfg_lldp_mib_change(struct ice_hw *hw, bool ena_update,
66 struct ice_aqc_lldp_set_mib_change *cmd;
67 struct ice_aq_desc desc;
69 cmd = &desc.params.lldp_set_event;
71 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_set_mib_change);
74 cmd->command |= ICE_AQ_LLDP_MIB_UPDATE_DIS;
76 cmd->command |= FIELD_PREP(ICE_AQ_LLDP_MIB_PENDING_M,
77 ICE_AQ_LLDP_MIB_PENDING_ENABLE);
79 return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
84 * @hw: pointer to the HW struct
85 * @shutdown_lldp_agent: True if LLDP Agent needs to be Shutdown
86 * False if LLDP Agent needs to be Stopped
87 * @persist: True if Stop/Shutdown of LLDP Agent needs to be persistent across
89 * @cd: pointer to command details structure or NULL
91 * Stop or Shutdown the embedded LLDP Agent (0x0A05)
94 ice_aq_stop_lldp(struct ice_hw *hw, bool shutdown_lldp_agent, bool persist,
97 struct ice_aqc_lldp_stop *cmd;
98 struct ice_aq_desc desc;
100 cmd = &desc.params.lldp_stop;
102 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_stop);
104 if (shutdown_lldp_agent)
105 cmd->command |= ICE_AQ_LLDP_AGENT_SHUTDOWN;
108 cmd->command |= ICE_AQ_LLDP_AGENT_PERSIST_DIS;
110 return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
115 * @hw: pointer to the HW struct
116 * @persist: True if Start of LLDP Agent needs to be persistent across reboots
117 * @cd: pointer to command details structure or NULL
119 * Start the embedded LLDP Agent on all ports. (0x0A06)
121 int ice_aq_start_lldp(struct ice_hw *hw, bool persist, struct ice_sq_cd *cd)
123 struct ice_aqc_lldp_start *cmd;
124 struct ice_aq_desc desc;
126 cmd = &desc.params.lldp_start;
128 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_start);
130 cmd->command = ICE_AQ_LLDP_AGENT_START;
133 cmd->command |= ICE_AQ_LLDP_AGENT_PERSIST_ENA;
135 return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
139 * ice_get_dcbx_status
140 * @hw: pointer to the HW struct
142 * Get the DCBX status from the Firmware
144 static u8 ice_get_dcbx_status(struct ice_hw *hw)
148 reg = rd32(hw, PRTDCB_GENS);
149 return FIELD_GET(PRTDCB_GENS_DCBX_STATUS_M, reg);
153 * ice_parse_ieee_ets_common_tlv
154 * @buf: Data buffer to be parsed for ETS CFG/REC data
155 * @ets_cfg: Container to store parsed data
157 * Parses the common data of IEEE 802.1Qaz ETS CFG/REC TLV
160 ice_parse_ieee_ets_common_tlv(u8 *buf, struct ice_dcb_ets_cfg *ets_cfg)
165 /* Priority Assignment Table (4 octets)
166 * Octets:| 1 | 2 | 3 | 4 |
167 * -----------------------------------------
168 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
169 * -----------------------------------------
170 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
171 * -----------------------------------------
173 for (i = 0; i < 4; i++) {
174 ets_cfg->prio_table[i * 2] =
175 FIELD_GET(ICE_IEEE_ETS_PRIO_1_M, buf[offset]);
176 ets_cfg->prio_table[i * 2 + 1] =
177 FIELD_GET(ICE_IEEE_ETS_PRIO_0_M, buf[offset]);
181 /* TC Bandwidth Table (8 octets)
182 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
183 * ---------------------------------
184 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
185 * ---------------------------------
187 * TSA Assignment Table (8 octets)
188 * Octets:| 9 | 10| 11| 12| 13| 14| 15| 16|
189 * ---------------------------------
190 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
191 * ---------------------------------
193 ice_for_each_traffic_class(i) {
194 ets_cfg->tcbwtable[i] = buf[offset];
195 ets_cfg->tsatable[i] = buf[ICE_MAX_TRAFFIC_CLASS + offset++];
200 * ice_parse_ieee_etscfg_tlv
201 * @tlv: IEEE 802.1Qaz ETS CFG TLV
202 * @dcbcfg: Local store to update ETS CFG data
204 * Parses IEEE 802.1Qaz ETS CFG TLV
207 ice_parse_ieee_etscfg_tlv(struct ice_lldp_org_tlv *tlv,
208 struct ice_dcbx_cfg *dcbcfg)
210 struct ice_dcb_ets_cfg *etscfg;
211 u8 *buf = tlv->tlvinfo;
213 /* First Octet post subtype
214 * --------------------------
215 * |will-|CBS | Re- | Max |
216 * |ing | |served| TCs |
217 * --------------------------
218 * |1bit | 1bit|3 bits|3bits|
220 etscfg = &dcbcfg->etscfg;
221 etscfg->willing = FIELD_GET(ICE_IEEE_ETS_WILLING_M, buf[0]);
222 etscfg->cbs = FIELD_GET(ICE_IEEE_ETS_CBS_M, buf[0]);
223 etscfg->maxtcs = FIELD_GET(ICE_IEEE_ETS_MAXTC_M, buf[0]);
225 /* Begin parsing at Priority Assignment Table (offset 1 in buf) */
226 ice_parse_ieee_ets_common_tlv(&buf[1], etscfg);
230 * ice_parse_ieee_etsrec_tlv
231 * @tlv: IEEE 802.1Qaz ETS REC TLV
232 * @dcbcfg: Local store to update ETS REC data
234 * Parses IEEE 802.1Qaz ETS REC TLV
237 ice_parse_ieee_etsrec_tlv(struct ice_lldp_org_tlv *tlv,
238 struct ice_dcbx_cfg *dcbcfg)
240 u8 *buf = tlv->tlvinfo;
242 /* Begin parsing at Priority Assignment Table (offset 1 in buf) */
243 ice_parse_ieee_ets_common_tlv(&buf[1], &dcbcfg->etsrec);
247 * ice_parse_ieee_pfccfg_tlv
248 * @tlv: IEEE 802.1Qaz PFC CFG TLV
249 * @dcbcfg: Local store to update PFC CFG data
251 * Parses IEEE 802.1Qaz PFC CFG TLV
254 ice_parse_ieee_pfccfg_tlv(struct ice_lldp_org_tlv *tlv,
255 struct ice_dcbx_cfg *dcbcfg)
257 u8 *buf = tlv->tlvinfo;
259 /* ----------------------------------------
260 * |will-|MBC | Re- | PFC | PFC Enable |
261 * |ing | |served| cap | |
262 * -----------------------------------------
263 * |1bit | 1bit|2 bits|4bits| 1 octet |
265 dcbcfg->pfc.willing = FIELD_GET(ICE_IEEE_PFC_WILLING_M, buf[0]);
266 dcbcfg->pfc.mbc = FIELD_GET(ICE_IEEE_PFC_MBC_M, buf[0]);
267 dcbcfg->pfc.pfccap = FIELD_GET(ICE_IEEE_PFC_CAP_M, buf[0]);
268 dcbcfg->pfc.pfcena = buf[1];
272 * ice_parse_ieee_app_tlv
273 * @tlv: IEEE 802.1Qaz APP TLV
274 * @dcbcfg: Local store to update APP PRIO data
276 * Parses IEEE 802.1Qaz APP PRIO TLV
279 ice_parse_ieee_app_tlv(struct ice_lldp_org_tlv *tlv,
280 struct ice_dcbx_cfg *dcbcfg)
288 typelen = ntohs(tlv->typelen);
289 len = FIELD_GET(ICE_LLDP_TLV_LEN_M, typelen);
292 /* Removing sizeof(ouisubtype) and reserved byte from len.
293 * Remaining len div 3 is number of APP TLVs.
295 len -= (sizeof(tlv->ouisubtype) + 1);
297 /* Move offset to App Priority Table */
300 /* Application Priority Table (3 octets)
301 * Octets:| 1 | 2 | 3 |
302 * -----------------------------------------
303 * |Priority|Rsrvd| Sel | Protocol ID |
304 * -----------------------------------------
305 * Bits:|23 21|20 19|18 16|15 0|
306 * -----------------------------------------
308 while (offset < len) {
309 dcbcfg->app[i].priority = FIELD_GET(ICE_IEEE_APP_PRIO_M,
311 dcbcfg->app[i].selector = FIELD_GET(ICE_IEEE_APP_SEL_M,
313 dcbcfg->app[i].prot_id = (buf[offset + 1] << 0x8) |
315 /* Move to next app */
318 if (i >= ICE_DCBX_MAX_APPS)
327 * @tlv: IEEE 802.1Qaz TLV
328 * @dcbcfg: Local store to update ETS REC data
330 * Get the TLV subtype and send it to parsing function
331 * based on the subtype value
334 ice_parse_ieee_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
339 ouisubtype = ntohl(tlv->ouisubtype);
340 subtype = FIELD_GET(ICE_LLDP_TLV_SUBTYPE_M, ouisubtype);
342 case ICE_IEEE_SUBTYPE_ETS_CFG:
343 ice_parse_ieee_etscfg_tlv(tlv, dcbcfg);
345 case ICE_IEEE_SUBTYPE_ETS_REC:
346 ice_parse_ieee_etsrec_tlv(tlv, dcbcfg);
348 case ICE_IEEE_SUBTYPE_PFC_CFG:
349 ice_parse_ieee_pfccfg_tlv(tlv, dcbcfg);
351 case ICE_IEEE_SUBTYPE_APP_PRI:
352 ice_parse_ieee_app_tlv(tlv, dcbcfg);
360 * ice_parse_cee_pgcfg_tlv
361 * @tlv: CEE DCBX PG CFG TLV
362 * @dcbcfg: Local store to update ETS CFG data
364 * Parses CEE DCBX PG CFG TLV
367 ice_parse_cee_pgcfg_tlv(struct ice_cee_feat_tlv *tlv,
368 struct ice_dcbx_cfg *dcbcfg)
370 struct ice_dcb_ets_cfg *etscfg;
371 u8 *buf = tlv->tlvinfo;
375 etscfg = &dcbcfg->etscfg;
377 if (tlv->en_will_err & ICE_CEE_FEAT_TLV_WILLING_M)
381 /* Priority Group Table (4 octets)
382 * Octets:| 1 | 2 | 3 | 4 |
383 * -----------------------------------------
384 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
385 * -----------------------------------------
386 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
387 * -----------------------------------------
389 for (i = 0; i < 4; i++) {
390 etscfg->prio_table[i * 2] =
391 FIELD_GET(ICE_CEE_PGID_PRIO_1_M, buf[offset]);
392 etscfg->prio_table[i * 2 + 1] =
393 FIELD_GET(ICE_CEE_PGID_PRIO_0_M, buf[offset]);
397 /* PG Percentage Table (8 octets)
398 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
399 * ---------------------------------
400 * |pg0|pg1|pg2|pg3|pg4|pg5|pg6|pg7|
401 * ---------------------------------
403 ice_for_each_traffic_class(i) {
404 etscfg->tcbwtable[i] = buf[offset++];
406 if (etscfg->prio_table[i] == ICE_CEE_PGID_STRICT)
407 dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_STRICT;
409 dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_ETS;
412 /* Number of TCs supported (1 octet) */
413 etscfg->maxtcs = buf[offset];
417 * ice_parse_cee_pfccfg_tlv
418 * @tlv: CEE DCBX PFC CFG TLV
419 * @dcbcfg: Local store to update PFC CFG data
421 * Parses CEE DCBX PFC CFG TLV
424 ice_parse_cee_pfccfg_tlv(struct ice_cee_feat_tlv *tlv,
425 struct ice_dcbx_cfg *dcbcfg)
427 u8 *buf = tlv->tlvinfo;
429 if (tlv->en_will_err & ICE_CEE_FEAT_TLV_WILLING_M)
430 dcbcfg->pfc.willing = 1;
432 /* ------------------------
433 * | PFC Enable | PFC TCs |
434 * ------------------------
435 * | 1 octet | 1 octet |
437 dcbcfg->pfc.pfcena = buf[0];
438 dcbcfg->pfc.pfccap = buf[1];
442 * ice_parse_cee_app_tlv
443 * @tlv: CEE DCBX APP TLV
444 * @dcbcfg: Local store to update APP PRIO data
446 * Parses CEE DCBX APP PRIO TLV
449 ice_parse_cee_app_tlv(struct ice_cee_feat_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
451 u16 len, typelen, offset = 0;
452 struct ice_cee_app_prio *app;
455 typelen = ntohs(tlv->hdr.typelen);
456 len = FIELD_GET(ICE_LLDP_TLV_LEN_M, typelen);
458 dcbcfg->numapps = len / sizeof(*app);
459 if (!dcbcfg->numapps)
461 if (dcbcfg->numapps > ICE_DCBX_MAX_APPS)
462 dcbcfg->numapps = ICE_DCBX_MAX_APPS;
464 for (i = 0; i < dcbcfg->numapps; i++) {
467 app = (struct ice_cee_app_prio *)(tlv->tlvinfo + offset);
468 for (up = 0; up < ICE_MAX_USER_PRIORITY; up++)
469 if (app->prio_map & BIT(up))
472 dcbcfg->app[i].priority = up;
474 /* Get Selector from lower 2 bits, and convert to IEEE */
475 selector = (app->upper_oui_sel & ICE_CEE_APP_SELECTOR_M);
477 case ICE_CEE_APP_SEL_ETHTYPE:
478 dcbcfg->app[i].selector = ICE_APP_SEL_ETHTYPE;
480 case ICE_CEE_APP_SEL_TCPIP:
481 dcbcfg->app[i].selector = ICE_APP_SEL_TCPIP;
484 /* Keep selector as it is for unknown types */
485 dcbcfg->app[i].selector = selector;
488 dcbcfg->app[i].prot_id = ntohs(app->protocol);
489 /* Move to next app */
490 offset += sizeof(*app);
497 * @dcbcfg: Local store to update DCBX config data
499 * Get the TLV subtype and send it to parsing function
500 * based on the subtype value
503 ice_parse_cee_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
505 struct ice_cee_feat_tlv *sub_tlv;
506 u8 subtype, feat_tlv_count = 0;
507 u16 len, tlvlen, typelen;
510 ouisubtype = ntohl(tlv->ouisubtype);
511 subtype = FIELD_GET(ICE_LLDP_TLV_SUBTYPE_M, ouisubtype);
512 /* Return if not CEE DCBX */
513 if (subtype != ICE_CEE_DCBX_TYPE)
516 typelen = ntohs(tlv->typelen);
517 tlvlen = FIELD_GET(ICE_LLDP_TLV_LEN_M, typelen);
518 len = sizeof(tlv->typelen) + sizeof(ouisubtype) +
519 sizeof(struct ice_cee_ctrl_tlv);
520 /* Return if no CEE DCBX Feature TLVs */
524 sub_tlv = (struct ice_cee_feat_tlv *)((char *)tlv + len);
525 while (feat_tlv_count < ICE_CEE_MAX_FEAT_TYPE) {
528 typelen = ntohs(sub_tlv->hdr.typelen);
529 sublen = FIELD_GET(ICE_LLDP_TLV_LEN_M, typelen);
530 subtype = FIELD_GET(ICE_LLDP_TLV_TYPE_M, typelen);
532 case ICE_CEE_SUBTYPE_PG_CFG:
533 ice_parse_cee_pgcfg_tlv(sub_tlv, dcbcfg);
535 case ICE_CEE_SUBTYPE_PFC_CFG:
536 ice_parse_cee_pfccfg_tlv(sub_tlv, dcbcfg);
538 case ICE_CEE_SUBTYPE_APP_PRI:
539 ice_parse_cee_app_tlv(sub_tlv, dcbcfg);
542 return; /* Invalid Sub-type return */
545 /* Move to next sub TLV */
546 sub_tlv = (struct ice_cee_feat_tlv *)
547 ((char *)sub_tlv + sizeof(sub_tlv->hdr.typelen) +
554 * @tlv: Organization specific TLV
555 * @dcbcfg: Local store to update ETS REC data
557 * Currently IEEE 802.1Qaz and CEE DCBX TLV are supported, others
561 ice_parse_org_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
566 ouisubtype = ntohl(tlv->ouisubtype);
567 oui = FIELD_GET(ICE_LLDP_TLV_OUI_M, ouisubtype);
569 case ICE_IEEE_8021QAZ_OUI:
570 ice_parse_ieee_tlv(tlv, dcbcfg);
572 case ICE_CEE_DCBX_OUI:
573 ice_parse_cee_tlv(tlv, dcbcfg);
576 break; /* Other OUIs not supported */
581 * ice_lldp_to_dcb_cfg
582 * @lldpmib: LLDPDU to be parsed
583 * @dcbcfg: store for LLDPDU data
585 * Parse DCB configuration from the LLDPDU
587 static int ice_lldp_to_dcb_cfg(u8 *lldpmib, struct ice_dcbx_cfg *dcbcfg)
589 struct ice_lldp_org_tlv *tlv;
596 if (!lldpmib || !dcbcfg)
599 /* set to the start of LLDPDU */
601 tlv = (struct ice_lldp_org_tlv *)lldpmib;
603 typelen = ntohs(tlv->typelen);
604 type = FIELD_GET(ICE_LLDP_TLV_TYPE_M, typelen);
605 len = FIELD_GET(ICE_LLDP_TLV_LEN_M, typelen);
606 offset += sizeof(typelen) + len;
608 /* END TLV or beyond LLDPDU size */
609 if (type == ICE_TLV_TYPE_END || offset > ICE_LLDPDU_SIZE)
613 case ICE_TLV_TYPE_ORG:
614 ice_parse_org_tlv(tlv, dcbcfg);
620 /* Move to next TLV */
621 tlv = (struct ice_lldp_org_tlv *)
622 ((char *)tlv + sizeof(tlv->typelen) + len);
630 * @hw: pointer to the HW struct
631 * @mib_type: MIB type for the query
632 * @bridgetype: bridge type for the query (remote)
633 * @dcbcfg: store for LLDPDU data
635 * Query DCB configuration from the firmware
638 ice_aq_get_dcb_cfg(struct ice_hw *hw, u8 mib_type, u8 bridgetype,
639 struct ice_dcbx_cfg *dcbcfg)
644 /* Allocate the LLDPDU */
645 lldpmib = devm_kzalloc(ice_hw_to_dev(hw), ICE_LLDPDU_SIZE, GFP_KERNEL);
649 ret = ice_aq_get_lldp_mib(hw, bridgetype, mib_type, (void *)lldpmib,
650 ICE_LLDPDU_SIZE, NULL, NULL, NULL);
653 /* Parse LLDP MIB to get DCB configuration */
654 ret = ice_lldp_to_dcb_cfg(lldpmib, dcbcfg);
656 devm_kfree(ice_hw_to_dev(hw), lldpmib);
662 * ice_aq_start_stop_dcbx - Start/Stop DCBX service in FW
663 * @hw: pointer to the HW struct
664 * @start_dcbx_agent: True if DCBX Agent needs to be started
665 * False if DCBX Agent needs to be stopped
666 * @dcbx_agent_status: FW indicates back the DCBX agent status
667 * True if DCBX Agent is active
668 * False if DCBX Agent is stopped
669 * @cd: pointer to command details structure or NULL
671 * Start/Stop the embedded dcbx Agent. In case that this wrapper function
672 * returns 0, caller will need to check if FW returns back the same
673 * value as stated in dcbx_agent_status, and react accordingly. (0x0A09)
676 ice_aq_start_stop_dcbx(struct ice_hw *hw, bool start_dcbx_agent,
677 bool *dcbx_agent_status, struct ice_sq_cd *cd)
679 struct ice_aqc_lldp_stop_start_specific_agent *cmd;
680 struct ice_aq_desc desc;
684 cmd = &desc.params.lldp_agent_ctrl;
686 opcode = ice_aqc_opc_lldp_stop_start_specific_agent;
688 ice_fill_dflt_direct_cmd_desc(&desc, opcode);
690 if (start_dcbx_agent)
691 cmd->command = ICE_AQC_START_STOP_AGENT_START_DCBX;
693 status = ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
695 *dcbx_agent_status = false;
698 cmd->command == ICE_AQC_START_STOP_AGENT_START_DCBX)
699 *dcbx_agent_status = true;
705 * ice_aq_get_cee_dcb_cfg
706 * @hw: pointer to the HW struct
707 * @buff: response buffer that stores CEE operational configuration
708 * @cd: pointer to command details structure or NULL
710 * Get CEE DCBX mode operational configuration from firmware (0x0A07)
713 ice_aq_get_cee_dcb_cfg(struct ice_hw *hw,
714 struct ice_aqc_get_cee_dcb_cfg_resp *buff,
715 struct ice_sq_cd *cd)
717 struct ice_aq_desc desc;
719 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_cee_dcb_cfg);
721 return ice_aq_send_cmd(hw, &desc, (void *)buff, sizeof(*buff), cd);
725 * ice_aq_set_pfc_mode - Set PFC mode
726 * @hw: pointer to the HW struct
727 * @pfc_mode: value of PFC mode to set
728 * @cd: pointer to command details structure or NULL
730 * This AQ call configures the PFC mode to DSCP-based PFC mode or
731 * VLAN-based PFC (0x0303)
733 int ice_aq_set_pfc_mode(struct ice_hw *hw, u8 pfc_mode, struct ice_sq_cd *cd)
735 struct ice_aqc_set_query_pfc_mode *cmd;
736 struct ice_aq_desc desc;
739 if (pfc_mode > ICE_AQC_PFC_DSCP_BASED_PFC)
742 cmd = &desc.params.set_query_pfc_mode;
744 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_set_pfc_mode);
746 cmd->pfc_mode = pfc_mode;
748 status = ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
752 /* FW will write the PFC mode set back into cmd->pfc_mode, but if DCB is
753 * disabled, FW will write back 0 to cmd->pfc_mode. After the AQ has
754 * been executed, check if cmd->pfc_mode is what was requested. If not,
757 if (cmd->pfc_mode != pfc_mode)
765 * @cee_cfg: pointer to CEE configuration struct
766 * @pi: port information structure
768 * Convert CEE configuration from firmware to DCB configuration
771 ice_cee_to_dcb_cfg(struct ice_aqc_get_cee_dcb_cfg_resp *cee_cfg,
772 struct ice_port_info *pi)
774 u32 status, tlv_status = le32_to_cpu(cee_cfg->tlv_status);
775 u32 ice_aqc_cee_status_mask, ice_aqc_cee_status_shift, j;
776 u8 i, err, sync, oper, app_index, ice_app_sel_type;
777 u16 app_prio = le16_to_cpu(cee_cfg->oper_app_prio);
778 u16 ice_aqc_cee_app_mask, ice_aqc_cee_app_shift;
779 struct ice_dcbx_cfg *cmp_dcbcfg, *dcbcfg;
780 u16 ice_app_prot_id_type;
782 dcbcfg = &pi->qos_cfg.local_dcbx_cfg;
783 dcbcfg->dcbx_mode = ICE_DCBX_MODE_CEE;
784 dcbcfg->tlv_status = tlv_status;
787 dcbcfg->etscfg.maxtcs = cee_cfg->oper_num_tc;
789 /* Note that the FW creates the oper_prio_tc nibbles reversed
790 * from those in the CEE Priority Group sub-TLV.
792 for (i = 0; i < ICE_MAX_TRAFFIC_CLASS / 2; i++) {
793 dcbcfg->etscfg.prio_table[i * 2] =
794 FIELD_GET(ICE_CEE_PGID_PRIO_0_M,
795 cee_cfg->oper_prio_tc[i]);
796 dcbcfg->etscfg.prio_table[i * 2 + 1] =
797 FIELD_GET(ICE_CEE_PGID_PRIO_1_M,
798 cee_cfg->oper_prio_tc[i]);
801 ice_for_each_traffic_class(i) {
802 dcbcfg->etscfg.tcbwtable[i] = cee_cfg->oper_tc_bw[i];
804 if (dcbcfg->etscfg.prio_table[i] == ICE_CEE_PGID_STRICT) {
805 /* Map it to next empty TC */
806 dcbcfg->etscfg.prio_table[i] = cee_cfg->oper_num_tc - 1;
807 dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_STRICT;
809 dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_ETS;
814 dcbcfg->pfc.pfcena = cee_cfg->oper_pfc_en;
815 dcbcfg->pfc.pfccap = ICE_MAX_TRAFFIC_CLASS;
817 /* CEE APP TLV data */
818 if (dcbcfg->app_mode == ICE_DCBX_APPS_NON_WILLING)
819 cmp_dcbcfg = &pi->qos_cfg.desired_dcbx_cfg;
821 cmp_dcbcfg = &pi->qos_cfg.remote_dcbx_cfg;
824 for (i = 0; i < 3; i++) {
827 ice_aqc_cee_status_mask = ICE_AQC_CEE_FCOE_STATUS_M;
828 ice_aqc_cee_status_shift = ICE_AQC_CEE_FCOE_STATUS_S;
829 ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_FCOE_M;
830 ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_FCOE_S;
831 ice_app_sel_type = ICE_APP_SEL_ETHTYPE;
832 ice_app_prot_id_type = ETH_P_FCOE;
835 ice_aqc_cee_status_mask = ICE_AQC_CEE_ISCSI_STATUS_M;
836 ice_aqc_cee_status_shift = ICE_AQC_CEE_ISCSI_STATUS_S;
837 ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_ISCSI_M;
838 ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_ISCSI_S;
839 ice_app_sel_type = ICE_APP_SEL_TCPIP;
840 ice_app_prot_id_type = ISCSI_LISTEN_PORT;
842 for (j = 0; j < cmp_dcbcfg->numapps; j++) {
843 u16 prot_id = cmp_dcbcfg->app[j].prot_id;
844 u8 sel = cmp_dcbcfg->app[j].selector;
846 if (sel == ICE_APP_SEL_TCPIP &&
847 (prot_id == ISCSI_LISTEN_PORT ||
848 prot_id == ICE_APP_PROT_ID_ISCSI_860)) {
849 ice_app_prot_id_type = prot_id;
855 ice_aqc_cee_status_mask = ICE_AQC_CEE_FIP_STATUS_M;
856 ice_aqc_cee_status_shift = ICE_AQC_CEE_FIP_STATUS_S;
857 ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_FIP_M;
858 ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_FIP_S;
859 ice_app_sel_type = ICE_APP_SEL_ETHTYPE;
860 ice_app_prot_id_type = ETH_P_FIP;
863 status = (tlv_status & ice_aqc_cee_status_mask) >>
864 ice_aqc_cee_status_shift;
865 err = (status & ICE_TLV_STATUS_ERR) ? 1 : 0;
866 sync = (status & ICE_TLV_STATUS_SYNC) ? 1 : 0;
867 oper = (status & ICE_TLV_STATUS_OPER) ? 1 : 0;
868 /* Add FCoE/iSCSI/FIP APP if Error is False and
871 if (!err && sync && oper) {
872 dcbcfg->app[app_index].priority =
873 (app_prio & ice_aqc_cee_app_mask) >>
874 ice_aqc_cee_app_shift;
875 dcbcfg->app[app_index].selector = ice_app_sel_type;
876 dcbcfg->app[app_index].prot_id = ice_app_prot_id_type;
881 dcbcfg->numapps = app_index;
885 * ice_get_ieee_or_cee_dcb_cfg
886 * @pi: port information structure
887 * @dcbx_mode: mode of DCBX (IEEE or CEE)
889 * Get IEEE or CEE mode DCB configuration from the Firmware
891 static int ice_get_ieee_or_cee_dcb_cfg(struct ice_port_info *pi, u8 dcbx_mode)
893 struct ice_dcbx_cfg *dcbx_cfg = NULL;
899 if (dcbx_mode == ICE_DCBX_MODE_IEEE)
900 dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg;
901 else if (dcbx_mode == ICE_DCBX_MODE_CEE)
902 dcbx_cfg = &pi->qos_cfg.desired_dcbx_cfg;
904 /* Get Local DCB Config in case of ICE_DCBX_MODE_IEEE
905 * or get CEE DCB Desired Config in case of ICE_DCBX_MODE_CEE
907 ret = ice_aq_get_dcb_cfg(pi->hw, ICE_AQ_LLDP_MIB_LOCAL,
908 ICE_AQ_LLDP_BRID_TYPE_NEAREST_BRID, dcbx_cfg);
912 /* Get Remote DCB Config */
913 dcbx_cfg = &pi->qos_cfg.remote_dcbx_cfg;
914 ret = ice_aq_get_dcb_cfg(pi->hw, ICE_AQ_LLDP_MIB_REMOTE,
915 ICE_AQ_LLDP_BRID_TYPE_NEAREST_BRID, dcbx_cfg);
916 /* Don't treat ENOENT as an error for Remote MIBs */
917 if (pi->hw->adminq.sq_last_status == ICE_AQ_RC_ENOENT)
926 * @pi: port information structure
928 * Get DCB configuration from the Firmware
930 int ice_get_dcb_cfg(struct ice_port_info *pi)
932 struct ice_aqc_get_cee_dcb_cfg_resp cee_cfg;
933 struct ice_dcbx_cfg *dcbx_cfg;
939 ret = ice_aq_get_cee_dcb_cfg(pi->hw, &cee_cfg, NULL);
942 ret = ice_get_ieee_or_cee_dcb_cfg(pi, ICE_DCBX_MODE_CEE);
943 ice_cee_to_dcb_cfg(&cee_cfg, pi);
944 } else if (pi->hw->adminq.sq_last_status == ICE_AQ_RC_ENOENT) {
945 /* CEE mode not enabled try querying IEEE data */
946 dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg;
947 dcbx_cfg->dcbx_mode = ICE_DCBX_MODE_IEEE;
948 ret = ice_get_ieee_or_cee_dcb_cfg(pi, ICE_DCBX_MODE_IEEE);
955 * ice_get_dcb_cfg_from_mib_change
956 * @pi: port information structure
957 * @event: pointer to the admin queue receive event
959 * Set DCB configuration from received MIB Change event
961 void ice_get_dcb_cfg_from_mib_change(struct ice_port_info *pi,
962 struct ice_rq_event_info *event)
964 struct ice_dcbx_cfg *dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg;
965 struct ice_aqc_lldp_get_mib *mib;
966 u8 change_type, dcbx_mode;
968 mib = (struct ice_aqc_lldp_get_mib *)&event->desc.params.raw;
970 change_type = FIELD_GET(ICE_AQ_LLDP_MIB_TYPE_M, mib->type);
971 if (change_type == ICE_AQ_LLDP_MIB_REMOTE)
972 dcbx_cfg = &pi->qos_cfg.remote_dcbx_cfg;
974 dcbx_mode = FIELD_GET(ICE_AQ_LLDP_DCBX_M, mib->type);
977 case ICE_AQ_LLDP_DCBX_IEEE:
978 dcbx_cfg->dcbx_mode = ICE_DCBX_MODE_IEEE;
979 ice_lldp_to_dcb_cfg(event->msg_buf, dcbx_cfg);
982 case ICE_AQ_LLDP_DCBX_CEE:
983 pi->qos_cfg.desired_dcbx_cfg = pi->qos_cfg.local_dcbx_cfg;
984 ice_cee_to_dcb_cfg((struct ice_aqc_get_cee_dcb_cfg_resp *)
992 * @hw: pointer to the HW struct
993 * @enable_mib_change: enable MIB change event
995 * Update DCB configuration from the Firmware
997 int ice_init_dcb(struct ice_hw *hw, bool enable_mib_change)
999 struct ice_qos_cfg *qos_cfg = &hw->port_info->qos_cfg;
1002 if (!hw->func_caps.common_cap.dcb)
1005 qos_cfg->is_sw_lldp = true;
1007 /* Get DCBX status */
1008 qos_cfg->dcbx_status = ice_get_dcbx_status(hw);
1010 if (qos_cfg->dcbx_status == ICE_DCBX_STATUS_DONE ||
1011 qos_cfg->dcbx_status == ICE_DCBX_STATUS_IN_PROGRESS ||
1012 qos_cfg->dcbx_status == ICE_DCBX_STATUS_NOT_STARTED) {
1013 /* Get current DCBX configuration */
1014 ret = ice_get_dcb_cfg(hw->port_info);
1017 qos_cfg->is_sw_lldp = false;
1018 } else if (qos_cfg->dcbx_status == ICE_DCBX_STATUS_DIS) {
1022 /* Configure the LLDP MIB change event */
1023 if (enable_mib_change) {
1024 ret = ice_aq_cfg_lldp_mib_change(hw, true, NULL);
1026 qos_cfg->is_sw_lldp = true;
1033 * ice_cfg_lldp_mib_change
1034 * @hw: pointer to the HW struct
1035 * @ena_mib: enable/disable MIB change event
1037 * Configure (disable/enable) MIB
1039 int ice_cfg_lldp_mib_change(struct ice_hw *hw, bool ena_mib)
1041 struct ice_qos_cfg *qos_cfg = &hw->port_info->qos_cfg;
1044 if (!hw->func_caps.common_cap.dcb)
1047 /* Get DCBX status */
1048 qos_cfg->dcbx_status = ice_get_dcbx_status(hw);
1050 if (qos_cfg->dcbx_status == ICE_DCBX_STATUS_DIS)
1053 ret = ice_aq_cfg_lldp_mib_change(hw, ena_mib, NULL);
1055 qos_cfg->is_sw_lldp = !ena_mib;
1061 * ice_add_ieee_ets_common_tlv
1062 * @buf: Data buffer to be populated with ice_dcb_ets_cfg data
1063 * @ets_cfg: Container for ice_dcb_ets_cfg data
1065 * Populate the TLV buffer with ice_dcb_ets_cfg data
1068 ice_add_ieee_ets_common_tlv(u8 *buf, struct ice_dcb_ets_cfg *ets_cfg)
1070 u8 priority0, priority1;
1074 /* Priority Assignment Table (4 octets)
1075 * Octets:| 1 | 2 | 3 | 4 |
1076 * -----------------------------------------
1077 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
1078 * -----------------------------------------
1079 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
1080 * -----------------------------------------
1082 for (i = 0; i < ICE_MAX_TRAFFIC_CLASS / 2; i++) {
1083 priority0 = ets_cfg->prio_table[i * 2] & 0xF;
1084 priority1 = ets_cfg->prio_table[i * 2 + 1] & 0xF;
1085 buf[offset] = (priority0 << ICE_IEEE_ETS_PRIO_1_S) | priority1;
1089 /* TC Bandwidth Table (8 octets)
1090 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
1091 * ---------------------------------
1092 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
1093 * ---------------------------------
1095 * TSA Assignment Table (8 octets)
1096 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
1097 * ---------------------------------
1098 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
1099 * ---------------------------------
1101 ice_for_each_traffic_class(i) {
1102 buf[offset] = ets_cfg->tcbwtable[i];
1103 buf[ICE_MAX_TRAFFIC_CLASS + offset] = ets_cfg->tsatable[i];
1109 * ice_add_ieee_ets_tlv - Prepare ETS TLV in IEEE format
1110 * @tlv: Fill the ETS config data in IEEE format
1111 * @dcbcfg: Local store which holds the DCB Config
1113 * Prepare IEEE 802.1Qaz ETS CFG TLV
1116 ice_add_ieee_ets_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
1118 struct ice_dcb_ets_cfg *etscfg;
1119 u8 *buf = tlv->tlvinfo;
1120 u8 maxtcwilling = 0;
1124 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1125 ICE_IEEE_ETS_TLV_LEN);
1126 tlv->typelen = htons(typelen);
1128 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
1129 ICE_IEEE_SUBTYPE_ETS_CFG);
1130 tlv->ouisubtype = htonl(ouisubtype);
1132 /* First Octet post subtype
1133 * --------------------------
1134 * |will-|CBS | Re- | Max |
1135 * |ing | |served| TCs |
1136 * --------------------------
1137 * |1bit | 1bit|3 bits|3bits|
1139 etscfg = &dcbcfg->etscfg;
1140 if (etscfg->willing)
1141 maxtcwilling = BIT(ICE_IEEE_ETS_WILLING_S);
1142 maxtcwilling |= etscfg->maxtcs & ICE_IEEE_ETS_MAXTC_M;
1143 buf[0] = maxtcwilling;
1145 /* Begin adding at Priority Assignment Table (offset 1 in buf) */
1146 ice_add_ieee_ets_common_tlv(&buf[1], etscfg);
1150 * ice_add_ieee_etsrec_tlv - Prepare ETS Recommended TLV in IEEE format
1151 * @tlv: Fill ETS Recommended TLV in IEEE format
1152 * @dcbcfg: Local store which holds the DCB Config
1154 * Prepare IEEE 802.1Qaz ETS REC TLV
1157 ice_add_ieee_etsrec_tlv(struct ice_lldp_org_tlv *tlv,
1158 struct ice_dcbx_cfg *dcbcfg)
1160 struct ice_dcb_ets_cfg *etsrec;
1161 u8 *buf = tlv->tlvinfo;
1165 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1166 ICE_IEEE_ETS_TLV_LEN);
1167 tlv->typelen = htons(typelen);
1169 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
1170 ICE_IEEE_SUBTYPE_ETS_REC);
1171 tlv->ouisubtype = htonl(ouisubtype);
1173 etsrec = &dcbcfg->etsrec;
1175 /* First Octet is reserved */
1176 /* Begin adding at Priority Assignment Table (offset 1 in buf) */
1177 ice_add_ieee_ets_common_tlv(&buf[1], etsrec);
1181 * ice_add_ieee_pfc_tlv - Prepare PFC TLV in IEEE format
1182 * @tlv: Fill PFC TLV in IEEE format
1183 * @dcbcfg: Local store which holds the PFC CFG data
1185 * Prepare IEEE 802.1Qaz PFC CFG TLV
1188 ice_add_ieee_pfc_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
1190 u8 *buf = tlv->tlvinfo;
1194 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1195 ICE_IEEE_PFC_TLV_LEN);
1196 tlv->typelen = htons(typelen);
1198 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
1199 ICE_IEEE_SUBTYPE_PFC_CFG);
1200 tlv->ouisubtype = htonl(ouisubtype);
1202 /* ----------------------------------------
1203 * |will-|MBC | Re- | PFC | PFC Enable |
1204 * |ing | |served| cap | |
1205 * -----------------------------------------
1206 * |1bit | 1bit|2 bits|4bits| 1 octet |
1208 if (dcbcfg->pfc.willing)
1209 buf[0] = BIT(ICE_IEEE_PFC_WILLING_S);
1211 if (dcbcfg->pfc.mbc)
1212 buf[0] |= BIT(ICE_IEEE_PFC_MBC_S);
1214 buf[0] |= dcbcfg->pfc.pfccap & 0xF;
1215 buf[1] = dcbcfg->pfc.pfcena;
1219 * ice_add_ieee_app_pri_tlv - Prepare APP TLV in IEEE format
1220 * @tlv: Fill APP TLV in IEEE format
1221 * @dcbcfg: Local store which holds the APP CFG data
1223 * Prepare IEEE 802.1Qaz APP CFG TLV
1226 ice_add_ieee_app_pri_tlv(struct ice_lldp_org_tlv *tlv,
1227 struct ice_dcbx_cfg *dcbcfg)
1229 u16 typelen, len, offset = 0;
1230 u8 priority, selector, i = 0;
1231 u8 *buf = tlv->tlvinfo;
1234 /* No APP TLVs then just return */
1235 if (dcbcfg->numapps == 0)
1237 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) |
1238 ICE_IEEE_SUBTYPE_APP_PRI);
1239 tlv->ouisubtype = htonl(ouisubtype);
1241 /* Move offset to App Priority Table */
1243 /* Application Priority Table (3 octets)
1244 * Octets:| 1 | 2 | 3 |
1245 * -----------------------------------------
1246 * |Priority|Rsrvd| Sel | Protocol ID |
1247 * -----------------------------------------
1248 * Bits:|23 21|20 19|18 16|15 0|
1249 * -----------------------------------------
1251 while (i < dcbcfg->numapps) {
1252 priority = dcbcfg->app[i].priority & 0x7;
1253 selector = dcbcfg->app[i].selector & 0x7;
1254 buf[offset] = (priority << ICE_IEEE_APP_PRIO_S) | selector;
1255 buf[offset + 1] = (dcbcfg->app[i].prot_id >> 0x8) & 0xFF;
1256 buf[offset + 2] = dcbcfg->app[i].prot_id & 0xFF;
1257 /* Move to next app */
1260 if (i >= ICE_DCBX_MAX_APPS)
1263 /* len includes size of ouisubtype + 1 reserved + 3*numapps */
1264 len = sizeof(tlv->ouisubtype) + 1 + (i * 3);
1265 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | (len & 0x1FF));
1266 tlv->typelen = htons(typelen);
1270 * ice_add_dscp_up_tlv - Prepare DSCP to UP TLV
1271 * @tlv: location to build the TLV data
1272 * @dcbcfg: location of data to convert to TLV
1275 ice_add_dscp_up_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
1277 u8 *buf = tlv->tlvinfo;
1282 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1283 ICE_DSCP_UP_TLV_LEN);
1284 tlv->typelen = htons(typelen);
1286 ouisubtype = (u32)((ICE_DSCP_OUI << ICE_LLDP_TLV_OUI_S) |
1287 ICE_DSCP_SUBTYPE_DSCP2UP);
1288 tlv->ouisubtype = htonl(ouisubtype);
1290 /* bytes 0 - 63 - IPv4 DSCP2UP LUT */
1291 for (i = 0; i < ICE_DSCP_NUM_VAL; i++) {
1293 buf[i] = dcbcfg->dscp_map[i];
1295 buf[i + ICE_DSCP_IPV6_OFFSET] = dcbcfg->dscp_map[i];
1298 /* byte 64 - IPv4 untagged traffic */
1301 /* byte 144 - IPv6 untagged traffic */
1302 buf[i + ICE_DSCP_IPV6_OFFSET] = 0;
1305 #define ICE_BYTES_PER_TC 8
1307 * ice_add_dscp_enf_tlv - Prepare DSCP Enforcement TLV
1308 * @tlv: location to build the TLV data
1311 ice_add_dscp_enf_tlv(struct ice_lldp_org_tlv *tlv)
1313 u8 *buf = tlv->tlvinfo;
1317 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1318 ICE_DSCP_ENF_TLV_LEN);
1319 tlv->typelen = htons(typelen);
1321 ouisubtype = (u32)((ICE_DSCP_OUI << ICE_LLDP_TLV_OUI_S) |
1322 ICE_DSCP_SUBTYPE_ENFORCE);
1323 tlv->ouisubtype = htonl(ouisubtype);
1325 /* Allow all DSCP values to be valid for all TC's (IPv4 and IPv6) */
1326 memset(buf, 0, 2 * (ICE_MAX_TRAFFIC_CLASS * ICE_BYTES_PER_TC));
1330 * ice_add_dscp_tc_bw_tlv - Prepare DSCP BW for TC TLV
1331 * @tlv: location to build the TLV data
1332 * @dcbcfg: location of the data to convert to TLV
1335 ice_add_dscp_tc_bw_tlv(struct ice_lldp_org_tlv *tlv,
1336 struct ice_dcbx_cfg *dcbcfg)
1338 struct ice_dcb_ets_cfg *etscfg;
1339 u8 *buf = tlv->tlvinfo;
1345 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1346 ICE_DSCP_TC_BW_TLV_LEN);
1347 tlv->typelen = htons(typelen);
1349 ouisubtype = (u32)((ICE_DSCP_OUI << ICE_LLDP_TLV_OUI_S) |
1350 ICE_DSCP_SUBTYPE_TCBW);
1351 tlv->ouisubtype = htonl(ouisubtype);
1353 /* First Octect after subtype
1354 * ----------------------------
1355 * | RSV | CBS | RSV | Max TCs |
1356 * | 1b | 1b | 3b | 3b |
1357 * ----------------------------
1359 etscfg = &dcbcfg->etscfg;
1360 buf[0] = etscfg->maxtcs & ICE_IEEE_ETS_MAXTC_M;
1362 /* bytes 1 - 4 reserved */
1366 * bytes 0 - 7 for TC 0 - 7
1368 * TSA Assignment table
1369 * bytes 8 - 15 for TC 0 - 7
1371 for (i = 0; i < ICE_MAX_TRAFFIC_CLASS; i++) {
1372 buf[offset] = etscfg->tcbwtable[i];
1373 buf[offset + ICE_MAX_TRAFFIC_CLASS] = etscfg->tsatable[i];
1379 * ice_add_dscp_pfc_tlv - Prepare DSCP PFC TLV
1380 * @tlv: Fill PFC TLV in IEEE format
1381 * @dcbcfg: Local store which holds the PFC CFG data
1384 ice_add_dscp_pfc_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg)
1386 u8 *buf = tlv->tlvinfo;
1390 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) |
1391 ICE_DSCP_PFC_TLV_LEN);
1392 tlv->typelen = htons(typelen);
1394 ouisubtype = (u32)((ICE_DSCP_OUI << ICE_LLDP_TLV_OUI_S) |
1395 ICE_DSCP_SUBTYPE_PFC);
1396 tlv->ouisubtype = htonl(ouisubtype);
1398 buf[0] = dcbcfg->pfc.pfccap & 0xF;
1399 buf[1] = dcbcfg->pfc.pfcena;
1403 * ice_add_dcb_tlv - Add all IEEE or DSCP TLVs
1404 * @tlv: Fill TLV data in IEEE format
1405 * @dcbcfg: Local store which holds the DCB Config
1406 * @tlvid: Type of IEEE TLV
1408 * Add tlv information
1411 ice_add_dcb_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg,
1414 if (dcbcfg->pfc_mode == ICE_QOS_MODE_VLAN) {
1416 case ICE_IEEE_TLV_ID_ETS_CFG:
1417 ice_add_ieee_ets_tlv(tlv, dcbcfg);
1419 case ICE_IEEE_TLV_ID_ETS_REC:
1420 ice_add_ieee_etsrec_tlv(tlv, dcbcfg);
1422 case ICE_IEEE_TLV_ID_PFC_CFG:
1423 ice_add_ieee_pfc_tlv(tlv, dcbcfg);
1425 case ICE_IEEE_TLV_ID_APP_PRI:
1426 ice_add_ieee_app_pri_tlv(tlv, dcbcfg);
1432 /* pfc_mode == ICE_QOS_MODE_DSCP */
1434 case ICE_TLV_ID_DSCP_UP:
1435 ice_add_dscp_up_tlv(tlv, dcbcfg);
1437 case ICE_TLV_ID_DSCP_ENF:
1438 ice_add_dscp_enf_tlv(tlv);
1440 case ICE_TLV_ID_DSCP_TC_BW:
1441 ice_add_dscp_tc_bw_tlv(tlv, dcbcfg);
1443 case ICE_TLV_ID_DSCP_TO_PFC:
1444 ice_add_dscp_pfc_tlv(tlv, dcbcfg);
1453 * ice_dcb_cfg_to_lldp - Convert DCB configuration to MIB format
1454 * @lldpmib: pointer to the HW struct
1455 * @miblen: length of LLDP MIB
1456 * @dcbcfg: Local store which holds the DCB Config
1458 * Convert the DCB configuration to MIB format
1461 ice_dcb_cfg_to_lldp(u8 *lldpmib, u16 *miblen, struct ice_dcbx_cfg *dcbcfg)
1463 u16 len, offset = 0, tlvid = ICE_TLV_ID_START;
1464 struct ice_lldp_org_tlv *tlv;
1467 tlv = (struct ice_lldp_org_tlv *)lldpmib;
1469 ice_add_dcb_tlv(tlv, dcbcfg, tlvid++);
1470 typelen = ntohs(tlv->typelen);
1471 len = FIELD_GET(ICE_LLDP_TLV_LEN_M, typelen);
1474 /* END TLV or beyond LLDPDU size */
1475 if (tlvid >= ICE_TLV_ID_END_OF_LLDPPDU ||
1476 offset > ICE_LLDPDU_SIZE)
1478 /* Move to next TLV */
1480 tlv = (struct ice_lldp_org_tlv *)
1481 ((char *)tlv + sizeof(tlv->typelen) + len);
1487 * ice_set_dcb_cfg - Set the local LLDP MIB to FW
1488 * @pi: port information structure
1490 * Set DCB configuration to the Firmware
1492 int ice_set_dcb_cfg(struct ice_port_info *pi)
1494 u8 mib_type, *lldpmib = NULL;
1495 struct ice_dcbx_cfg *dcbcfg;
1505 /* update the HW local config */
1506 dcbcfg = &pi->qos_cfg.local_dcbx_cfg;
1507 /* Allocate the LLDPDU */
1508 lldpmib = devm_kzalloc(ice_hw_to_dev(hw), ICE_LLDPDU_SIZE, GFP_KERNEL);
1512 mib_type = SET_LOCAL_MIB_TYPE_LOCAL_MIB;
1513 if (dcbcfg->app_mode == ICE_DCBX_APPS_NON_WILLING)
1514 mib_type |= SET_LOCAL_MIB_TYPE_CEE_NON_WILLING;
1516 ice_dcb_cfg_to_lldp(lldpmib, &miblen, dcbcfg);
1517 ret = ice_aq_set_lldp_mib(hw, mib_type, (void *)lldpmib, miblen,
1520 devm_kfree(ice_hw_to_dev(hw), lldpmib);
1526 * ice_aq_query_port_ets - query port ETS configuration
1527 * @pi: port information structure
1528 * @buf: pointer to buffer
1529 * @buf_size: buffer size in bytes
1530 * @cd: pointer to command details structure or NULL
1532 * query current port ETS configuration
1535 ice_aq_query_port_ets(struct ice_port_info *pi,
1536 struct ice_aqc_port_ets_elem *buf, u16 buf_size,
1537 struct ice_sq_cd *cd)
1539 struct ice_aqc_query_port_ets *cmd;
1540 struct ice_aq_desc desc;
1545 cmd = &desc.params.port_ets;
1546 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_query_port_ets);
1547 cmd->port_teid = pi->root->info.node_teid;
1549 status = ice_aq_send_cmd(pi->hw, &desc, buf, buf_size, cd);
1554 * ice_update_port_tc_tree_cfg - update TC tree configuration
1555 * @pi: port information structure
1556 * @buf: pointer to buffer
1558 * update the SW DB with the new TC changes
1561 ice_update_port_tc_tree_cfg(struct ice_port_info *pi,
1562 struct ice_aqc_port_ets_elem *buf)
1564 struct ice_sched_node *node, *tc_node;
1565 struct ice_aqc_txsched_elem_data elem;
1572 /* suspend the missing TC nodes */
1573 for (i = 0; i < pi->root->num_children; i++) {
1574 teid1 = le32_to_cpu(pi->root->children[i]->info.node_teid);
1575 ice_for_each_traffic_class(j) {
1576 teid2 = le32_to_cpu(buf->tc_node_teid[j]);
1580 if (j < ICE_MAX_TRAFFIC_CLASS)
1583 pi->root->children[i]->in_use = false;
1585 /* add the new TC nodes */
1586 ice_for_each_traffic_class(j) {
1587 teid2 = le32_to_cpu(buf->tc_node_teid[j]);
1588 if (teid2 == ICE_INVAL_TEID)
1590 /* Is it already present in the tree ? */
1591 for (i = 0; i < pi->root->num_children; i++) {
1592 tc_node = pi->root->children[i];
1595 teid1 = le32_to_cpu(tc_node->info.node_teid);
1596 if (teid1 == teid2) {
1597 tc_node->tc_num = j;
1598 tc_node->in_use = true;
1602 if (i < pi->root->num_children)
1605 status = ice_sched_query_elem(pi->hw, teid2, &elem);
1607 status = ice_sched_add_node(pi, 1, &elem, NULL);
1610 /* update the TC number */
1611 node = ice_sched_find_node_by_teid(pi->root, teid2);
1619 * ice_query_port_ets - query port ETS configuration
1620 * @pi: port information structure
1621 * @buf: pointer to buffer
1622 * @buf_size: buffer size in bytes
1623 * @cd: pointer to command details structure or NULL
1625 * query current port ETS configuration and update the
1626 * SW DB with the TC changes
1629 ice_query_port_ets(struct ice_port_info *pi,
1630 struct ice_aqc_port_ets_elem *buf, u16 buf_size,
1631 struct ice_sq_cd *cd)
1635 mutex_lock(&pi->sched_lock);
1636 status = ice_aq_query_port_ets(pi, buf, buf_size, cd);
1638 status = ice_update_port_tc_tree_cfg(pi, buf);
1639 mutex_unlock(&pi->sched_lock);