1 /******************************************************************************
3 Copyright (c) 2013-2018, Intel Corporation
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions are met:
9 1. Redistributions of source code must retain the above copyright notice,
10 this list of conditions and the following disclaimer.
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13 notice, this list of conditions and the following disclaimer in the
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20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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32 ******************************************************************************/
35 #include "i40e_adminq.h"
36 #include "i40e_prototype.h"
40 * i40e_get_dcbx_status
41 * @hw: pointer to the hw struct
42 * @status: Embedded DCBX Engine Status
44 * Get the DCBX status from the Firmware
46 enum i40e_status_code i40e_get_dcbx_status(struct i40e_hw *hw, u16 *status)
51 return I40E_ERR_PARAM;
53 reg = rd32(hw, I40E_PRTDCB_GENS);
54 *status = (u16)((reg & I40E_PRTDCB_GENS_DCBX_STATUS_MASK) >>
55 I40E_PRTDCB_GENS_DCBX_STATUS_SHIFT);
61 * i40e_parse_ieee_etscfg_tlv
62 * @tlv: IEEE 802.1Qaz ETS CFG TLV
63 * @dcbcfg: Local store to update ETS CFG data
65 * Parses IEEE 802.1Qaz ETS CFG TLV
67 static void i40e_parse_ieee_etscfg_tlv(struct i40e_lldp_org_tlv *tlv,
68 struct i40e_dcbx_config *dcbcfg)
70 struct i40e_dcb_ets_config *etscfg;
71 u8 *buf = tlv->tlvinfo;
76 /* First Octet post subtype
77 * --------------------------
78 * |will-|CBS | Re- | Max |
79 * |ing | |served| TCs |
80 * --------------------------
81 * |1bit | 1bit|3 bits|3bits|
83 etscfg = &dcbcfg->etscfg;
84 etscfg->willing = (u8)((buf[offset] & I40E_IEEE_ETS_WILLING_MASK) >>
85 I40E_IEEE_ETS_WILLING_SHIFT);
86 etscfg->cbs = (u8)((buf[offset] & I40E_IEEE_ETS_CBS_MASK) >>
87 I40E_IEEE_ETS_CBS_SHIFT);
88 etscfg->maxtcs = (u8)((buf[offset] & I40E_IEEE_ETS_MAXTC_MASK) >>
89 I40E_IEEE_ETS_MAXTC_SHIFT);
91 /* Move offset to Priority Assignment Table */
94 /* Priority Assignment Table (4 octets)
95 * Octets:| 1 | 2 | 3 | 4 |
96 * -----------------------------------------
97 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
98 * -----------------------------------------
99 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
100 * -----------------------------------------
102 for (i = 0; i < 4; i++) {
103 priority = (u8)((buf[offset] & I40E_IEEE_ETS_PRIO_1_MASK) >>
104 I40E_IEEE_ETS_PRIO_1_SHIFT);
105 etscfg->prioritytable[i * 2] = priority;
106 priority = (u8)((buf[offset] & I40E_IEEE_ETS_PRIO_0_MASK) >>
107 I40E_IEEE_ETS_PRIO_0_SHIFT);
108 etscfg->prioritytable[i * 2 + 1] = priority;
112 /* TC Bandwidth Table (8 octets)
113 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
114 * ---------------------------------
115 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
116 * ---------------------------------
118 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
119 etscfg->tcbwtable[i] = buf[offset++];
121 /* TSA Assignment Table (8 octets)
122 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
123 * ---------------------------------
124 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
125 * ---------------------------------
127 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
128 etscfg->tsatable[i] = buf[offset++];
132 * i40e_parse_ieee_etsrec_tlv
133 * @tlv: IEEE 802.1Qaz ETS REC TLV
134 * @dcbcfg: Local store to update ETS REC data
136 * Parses IEEE 802.1Qaz ETS REC TLV
138 static void i40e_parse_ieee_etsrec_tlv(struct i40e_lldp_org_tlv *tlv,
139 struct i40e_dcbx_config *dcbcfg)
141 u8 *buf = tlv->tlvinfo;
146 /* Move offset to priority table */
149 /* Priority Assignment Table (4 octets)
150 * Octets:| 1 | 2 | 3 | 4 |
151 * -----------------------------------------
152 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
153 * -----------------------------------------
154 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
155 * -----------------------------------------
157 for (i = 0; i < 4; i++) {
158 priority = (u8)((buf[offset] & I40E_IEEE_ETS_PRIO_1_MASK) >>
159 I40E_IEEE_ETS_PRIO_1_SHIFT);
160 dcbcfg->etsrec.prioritytable[i*2] = priority;
161 priority = (u8)((buf[offset] & I40E_IEEE_ETS_PRIO_0_MASK) >>
162 I40E_IEEE_ETS_PRIO_0_SHIFT);
163 dcbcfg->etsrec.prioritytable[i*2 + 1] = priority;
167 /* TC Bandwidth Table (8 octets)
168 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
169 * ---------------------------------
170 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
171 * ---------------------------------
173 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
174 dcbcfg->etsrec.tcbwtable[i] = buf[offset++];
176 /* TSA Assignment Table (8 octets)
177 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
178 * ---------------------------------
179 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
180 * ---------------------------------
182 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
183 dcbcfg->etsrec.tsatable[i] = buf[offset++];
187 * i40e_parse_ieee_pfccfg_tlv
188 * @tlv: IEEE 802.1Qaz PFC CFG TLV
189 * @dcbcfg: Local store to update PFC CFG data
191 * Parses IEEE 802.1Qaz PFC CFG TLV
193 static void i40e_parse_ieee_pfccfg_tlv(struct i40e_lldp_org_tlv *tlv,
194 struct i40e_dcbx_config *dcbcfg)
196 u8 *buf = tlv->tlvinfo;
198 /* ----------------------------------------
199 * |will-|MBC | Re- | PFC | PFC Enable |
200 * |ing | |served| cap | |
201 * -----------------------------------------
202 * |1bit | 1bit|2 bits|4bits| 1 octet |
204 dcbcfg->pfc.willing = (u8)((buf[0] & I40E_IEEE_PFC_WILLING_MASK) >>
205 I40E_IEEE_PFC_WILLING_SHIFT);
206 dcbcfg->pfc.mbc = (u8)((buf[0] & I40E_IEEE_PFC_MBC_MASK) >>
207 I40E_IEEE_PFC_MBC_SHIFT);
208 dcbcfg->pfc.pfccap = (u8)((buf[0] & I40E_IEEE_PFC_CAP_MASK) >>
209 I40E_IEEE_PFC_CAP_SHIFT);
210 dcbcfg->pfc.pfcenable = buf[1];
214 * i40e_parse_ieee_app_tlv
215 * @tlv: IEEE 802.1Qaz APP TLV
216 * @dcbcfg: Local store to update APP PRIO data
218 * Parses IEEE 802.1Qaz APP PRIO TLV
220 static void i40e_parse_ieee_app_tlv(struct i40e_lldp_org_tlv *tlv,
221 struct i40e_dcbx_config *dcbcfg)
229 typelength = I40E_NTOHS(tlv->typelength);
230 length = (u16)((typelength & I40E_LLDP_TLV_LEN_MASK) >>
231 I40E_LLDP_TLV_LEN_SHIFT);
234 /* The App priority table starts 5 octets after TLV header */
235 length -= (sizeof(tlv->ouisubtype) + 1);
237 /* Move offset to App Priority Table */
240 /* Application Priority Table (3 octets)
241 * Octets:| 1 | 2 | 3 |
242 * -----------------------------------------
243 * |Priority|Rsrvd| Sel | Protocol ID |
244 * -----------------------------------------
245 * Bits:|23 21|20 19|18 16|15 0|
246 * -----------------------------------------
248 while (offset < length) {
249 dcbcfg->app[i].priority = (u8)((buf[offset] &
250 I40E_IEEE_APP_PRIO_MASK) >>
251 I40E_IEEE_APP_PRIO_SHIFT);
252 dcbcfg->app[i].selector = (u8)((buf[offset] &
253 I40E_IEEE_APP_SEL_MASK) >>
254 I40E_IEEE_APP_SEL_SHIFT);
255 dcbcfg->app[i].protocolid = (buf[offset + 1] << 0x8) |
257 /* Move to next app */
260 if (i >= I40E_DCBX_MAX_APPS)
268 * i40e_parse_ieee_etsrec_tlv
269 * @tlv: IEEE 802.1Qaz TLV
270 * @dcbcfg: Local store to update ETS REC data
272 * Get the TLV subtype and send it to parsing function
273 * based on the subtype value
275 static void i40e_parse_ieee_tlv(struct i40e_lldp_org_tlv *tlv,
276 struct i40e_dcbx_config *dcbcfg)
281 ouisubtype = I40E_NTOHL(tlv->ouisubtype);
282 subtype = (u8)((ouisubtype & I40E_LLDP_TLV_SUBTYPE_MASK) >>
283 I40E_LLDP_TLV_SUBTYPE_SHIFT);
285 case I40E_IEEE_SUBTYPE_ETS_CFG:
286 i40e_parse_ieee_etscfg_tlv(tlv, dcbcfg);
288 case I40E_IEEE_SUBTYPE_ETS_REC:
289 i40e_parse_ieee_etsrec_tlv(tlv, dcbcfg);
291 case I40E_IEEE_SUBTYPE_PFC_CFG:
292 i40e_parse_ieee_pfccfg_tlv(tlv, dcbcfg);
294 case I40E_IEEE_SUBTYPE_APP_PRI:
295 i40e_parse_ieee_app_tlv(tlv, dcbcfg);
303 * i40e_parse_cee_pgcfg_tlv
304 * @tlv: CEE DCBX PG CFG TLV
305 * @dcbcfg: Local store to update ETS CFG data
307 * Parses CEE DCBX PG CFG TLV
309 static void i40e_parse_cee_pgcfg_tlv(struct i40e_cee_feat_tlv *tlv,
310 struct i40e_dcbx_config *dcbcfg)
312 struct i40e_dcb_ets_config *etscfg;
313 u8 *buf = tlv->tlvinfo;
318 etscfg = &dcbcfg->etscfg;
320 if (tlv->en_will_err & I40E_CEE_FEAT_TLV_WILLING_MASK)
324 /* Priority Group Table (4 octets)
325 * Octets:| 1 | 2 | 3 | 4 |
326 * -----------------------------------------
327 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
328 * -----------------------------------------
329 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
330 * -----------------------------------------
332 for (i = 0; i < 4; i++) {
333 priority = (u8)((buf[offset] & I40E_CEE_PGID_PRIO_1_MASK) >>
334 I40E_CEE_PGID_PRIO_1_SHIFT);
335 etscfg->prioritytable[i * 2] = priority;
336 priority = (u8)((buf[offset] & I40E_CEE_PGID_PRIO_0_MASK) >>
337 I40E_CEE_PGID_PRIO_0_SHIFT);
338 etscfg->prioritytable[i * 2 + 1] = priority;
342 /* PG Percentage Table (8 octets)
343 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
344 * ---------------------------------
345 * |pg0|pg1|pg2|pg3|pg4|pg5|pg6|pg7|
346 * ---------------------------------
348 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
349 etscfg->tcbwtable[i] = buf[offset++];
351 /* Number of TCs supported (1 octet) */
352 etscfg->maxtcs = buf[offset];
356 * i40e_parse_cee_pfccfg_tlv
357 * @tlv: CEE DCBX PFC CFG TLV
358 * @dcbcfg: Local store to update PFC CFG data
360 * Parses CEE DCBX PFC CFG TLV
362 static void i40e_parse_cee_pfccfg_tlv(struct i40e_cee_feat_tlv *tlv,
363 struct i40e_dcbx_config *dcbcfg)
365 u8 *buf = tlv->tlvinfo;
367 if (tlv->en_will_err & I40E_CEE_FEAT_TLV_WILLING_MASK)
368 dcbcfg->pfc.willing = 1;
370 /* ------------------------
371 * | PFC Enable | PFC TCs |
372 * ------------------------
373 * | 1 octet | 1 octet |
375 dcbcfg->pfc.pfcenable = buf[0];
376 dcbcfg->pfc.pfccap = buf[1];
380 * i40e_parse_cee_app_tlv
381 * @tlv: CEE DCBX APP TLV
382 * @dcbcfg: Local store to update APP PRIO data
384 * Parses CEE DCBX APP PRIO TLV
386 static void i40e_parse_cee_app_tlv(struct i40e_cee_feat_tlv *tlv,
387 struct i40e_dcbx_config *dcbcfg)
389 u16 length, typelength, offset = 0;
390 struct i40e_cee_app_prio *app;
393 typelength = I40E_NTOHS(tlv->hdr.typelen);
394 length = (u16)((typelength & I40E_LLDP_TLV_LEN_MASK) >>
395 I40E_LLDP_TLV_LEN_SHIFT);
397 dcbcfg->numapps = length / sizeof(*app);
398 if (!dcbcfg->numapps)
400 if (dcbcfg->numapps > I40E_DCBX_MAX_APPS)
401 dcbcfg->numapps = I40E_DCBX_MAX_APPS;
403 for (i = 0; i < dcbcfg->numapps; i++) {
406 app = (struct i40e_cee_app_prio *)(tlv->tlvinfo + offset);
407 for (up = 0; up < I40E_MAX_USER_PRIORITY; up++) {
408 if (app->prio_map & BIT(up))
411 dcbcfg->app[i].priority = up;
413 /* Get Selector from lower 2 bits, and convert to IEEE */
414 selector = (app->upper_oui_sel & I40E_CEE_APP_SELECTOR_MASK);
416 case I40E_CEE_APP_SEL_ETHTYPE:
417 dcbcfg->app[i].selector = I40E_APP_SEL_ETHTYPE;
419 case I40E_CEE_APP_SEL_TCPIP:
420 dcbcfg->app[i].selector = I40E_APP_SEL_TCPIP;
423 /* Keep selector as it is for unknown types */
424 dcbcfg->app[i].selector = selector;
427 dcbcfg->app[i].protocolid = I40E_NTOHS(app->protocol);
428 /* Move to next app */
429 offset += sizeof(*app);
436 * @dcbcfg: Local store to update DCBX config data
438 * Get the TLV subtype and send it to parsing function
439 * based on the subtype value
441 static void i40e_parse_cee_tlv(struct i40e_lldp_org_tlv *tlv,
442 struct i40e_dcbx_config *dcbcfg)
444 u16 len, tlvlen, sublen, typelength;
445 struct i40e_cee_feat_tlv *sub_tlv;
446 u8 subtype, feat_tlv_count = 0;
449 ouisubtype = I40E_NTOHL(tlv->ouisubtype);
450 subtype = (u8)((ouisubtype & I40E_LLDP_TLV_SUBTYPE_MASK) >>
451 I40E_LLDP_TLV_SUBTYPE_SHIFT);
452 /* Return if not CEE DCBX */
453 if (subtype != I40E_CEE_DCBX_TYPE)
456 typelength = I40E_NTOHS(tlv->typelength);
457 tlvlen = (u16)((typelength & I40E_LLDP_TLV_LEN_MASK) >>
458 I40E_LLDP_TLV_LEN_SHIFT);
459 len = sizeof(tlv->typelength) + sizeof(ouisubtype) +
460 sizeof(struct i40e_cee_ctrl_tlv);
461 /* Return if no CEE DCBX Feature TLVs */
465 sub_tlv = (struct i40e_cee_feat_tlv *)((char *)tlv + len);
466 while (feat_tlv_count < I40E_CEE_MAX_FEAT_TYPE) {
467 typelength = I40E_NTOHS(sub_tlv->hdr.typelen);
468 sublen = (u16)((typelength &
469 I40E_LLDP_TLV_LEN_MASK) >>
470 I40E_LLDP_TLV_LEN_SHIFT);
471 subtype = (u8)((typelength & I40E_LLDP_TLV_TYPE_MASK) >>
472 I40E_LLDP_TLV_TYPE_SHIFT);
474 case I40E_CEE_SUBTYPE_PG_CFG:
475 i40e_parse_cee_pgcfg_tlv(sub_tlv, dcbcfg);
477 case I40E_CEE_SUBTYPE_PFC_CFG:
478 i40e_parse_cee_pfccfg_tlv(sub_tlv, dcbcfg);
480 case I40E_CEE_SUBTYPE_APP_PRI:
481 i40e_parse_cee_app_tlv(sub_tlv, dcbcfg);
484 return; /* Invalid Sub-type return */
487 /* Move to next sub TLV */
488 sub_tlv = (struct i40e_cee_feat_tlv *)((char *)sub_tlv +
489 sizeof(sub_tlv->hdr.typelen) +
496 * @tlv: Organization specific TLV
497 * @dcbcfg: Local store to update ETS REC data
499 * Currently only IEEE 802.1Qaz TLV is supported, all others
502 static void i40e_parse_org_tlv(struct i40e_lldp_org_tlv *tlv,
503 struct i40e_dcbx_config *dcbcfg)
508 ouisubtype = I40E_NTOHL(tlv->ouisubtype);
509 oui = (u32)((ouisubtype & I40E_LLDP_TLV_OUI_MASK) >>
510 I40E_LLDP_TLV_OUI_SHIFT);
512 case I40E_IEEE_8021QAZ_OUI:
513 i40e_parse_ieee_tlv(tlv, dcbcfg);
515 case I40E_CEE_DCBX_OUI:
516 i40e_parse_cee_tlv(tlv, dcbcfg);
524 * i40e_lldp_to_dcb_config
525 * @lldpmib: LLDPDU to be parsed
526 * @dcbcfg: store for LLDPDU data
528 * Parse DCB configuration from the LLDPDU
530 enum i40e_status_code i40e_lldp_to_dcb_config(u8 *lldpmib,
531 struct i40e_dcbx_config *dcbcfg)
533 enum i40e_status_code ret = I40E_SUCCESS;
534 struct i40e_lldp_org_tlv *tlv;
540 if (!lldpmib || !dcbcfg)
541 return I40E_ERR_PARAM;
543 /* set to the start of LLDPDU */
544 lldpmib += I40E_LLDP_MIB_HLEN;
545 tlv = (struct i40e_lldp_org_tlv *)lldpmib;
547 typelength = I40E_NTOHS(tlv->typelength);
548 type = (u16)((typelength & I40E_LLDP_TLV_TYPE_MASK) >>
549 I40E_LLDP_TLV_TYPE_SHIFT);
550 length = (u16)((typelength & I40E_LLDP_TLV_LEN_MASK) >>
551 I40E_LLDP_TLV_LEN_SHIFT);
552 offset += sizeof(typelength) + length;
554 /* END TLV or beyond LLDPDU size */
555 if ((type == I40E_TLV_TYPE_END) || (offset > I40E_LLDPDU_SIZE))
559 case I40E_TLV_TYPE_ORG:
560 i40e_parse_org_tlv(tlv, dcbcfg);
566 /* Move to next TLV */
567 tlv = (struct i40e_lldp_org_tlv *)((char *)tlv +
568 sizeof(tlv->typelength) +
576 * i40e_aq_get_dcb_config
577 * @hw: pointer to the hw struct
578 * @mib_type: mib type for the query
579 * @bridgetype: bridge type for the query (remote)
580 * @dcbcfg: store for LLDPDU data
582 * Query DCB configuration from the Firmware
584 enum i40e_status_code i40e_aq_get_dcb_config(struct i40e_hw *hw, u8 mib_type,
586 struct i40e_dcbx_config *dcbcfg)
588 enum i40e_status_code ret = I40E_SUCCESS;
589 struct i40e_virt_mem mem;
592 /* Allocate the LLDPDU */
593 ret = i40e_allocate_virt_mem(hw, &mem, I40E_LLDPDU_SIZE);
597 lldpmib = (u8 *)mem.va;
598 ret = i40e_aq_get_lldp_mib(hw, bridgetype, mib_type,
599 (void *)lldpmib, I40E_LLDPDU_SIZE,
604 /* Parse LLDP MIB to get dcb configuration */
605 ret = i40e_lldp_to_dcb_config(lldpmib, dcbcfg);
608 i40e_free_virt_mem(hw, &mem);
613 * i40e_cee_to_dcb_v1_config
614 * @cee_cfg: pointer to CEE v1 response configuration struct
615 * @dcbcfg: DCB configuration struct
617 * Convert CEE v1 configuration from firmware to DCB configuration
619 static void i40e_cee_to_dcb_v1_config(
620 struct i40e_aqc_get_cee_dcb_cfg_v1_resp *cee_cfg,
621 struct i40e_dcbx_config *dcbcfg)
623 u16 status, tlv_status = LE16_TO_CPU(cee_cfg->tlv_status);
624 u16 app_prio = LE16_TO_CPU(cee_cfg->oper_app_prio);
627 /* CEE PG data to ETS config */
628 dcbcfg->etscfg.maxtcs = cee_cfg->oper_num_tc;
630 /* Note that the FW creates the oper_prio_tc nibbles reversed
631 * from those in the CEE Priority Group sub-TLV.
633 for (i = 0; i < 4; i++) {
634 tc = (u8)((cee_cfg->oper_prio_tc[i] &
635 I40E_CEE_PGID_PRIO_0_MASK) >>
636 I40E_CEE_PGID_PRIO_0_SHIFT);
637 dcbcfg->etscfg.prioritytable[i*2] = tc;
638 tc = (u8)((cee_cfg->oper_prio_tc[i] &
639 I40E_CEE_PGID_PRIO_1_MASK) >>
640 I40E_CEE_PGID_PRIO_1_SHIFT);
641 dcbcfg->etscfg.prioritytable[i*2 + 1] = tc;
644 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
645 dcbcfg->etscfg.tcbwtable[i] = cee_cfg->oper_tc_bw[i];
647 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
648 if (dcbcfg->etscfg.prioritytable[i] == I40E_CEE_PGID_STRICT) {
649 /* Map it to next empty TC */
650 dcbcfg->etscfg.prioritytable[i] =
651 cee_cfg->oper_num_tc - 1;
652 dcbcfg->etscfg.tsatable[i] = I40E_IEEE_TSA_STRICT;
654 dcbcfg->etscfg.tsatable[i] = I40E_IEEE_TSA_ETS;
658 /* CEE PFC data to ETS config */
659 dcbcfg->pfc.pfcenable = cee_cfg->oper_pfc_en;
660 dcbcfg->pfc.pfccap = I40E_MAX_TRAFFIC_CLASS;
662 status = (tlv_status & I40E_AQC_CEE_APP_STATUS_MASK) >>
663 I40E_AQC_CEE_APP_STATUS_SHIFT;
664 err = (status & I40E_TLV_STATUS_ERR) ? 1 : 0;
665 /* Add APPs if Error is False */
667 /* CEE operating configuration supports FCoE/iSCSI/FIP only */
668 dcbcfg->numapps = I40E_CEE_OPER_MAX_APPS;
671 dcbcfg->app[0].priority =
672 (app_prio & I40E_AQC_CEE_APP_FCOE_MASK) >>
673 I40E_AQC_CEE_APP_FCOE_SHIFT;
674 dcbcfg->app[0].selector = I40E_APP_SEL_ETHTYPE;
675 dcbcfg->app[0].protocolid = I40E_APP_PROTOID_FCOE;
678 dcbcfg->app[1].priority =
679 (app_prio & I40E_AQC_CEE_APP_ISCSI_MASK) >>
680 I40E_AQC_CEE_APP_ISCSI_SHIFT;
681 dcbcfg->app[1].selector = I40E_APP_SEL_TCPIP;
682 dcbcfg->app[1].protocolid = I40E_APP_PROTOID_ISCSI;
685 dcbcfg->app[2].priority =
686 (app_prio & I40E_AQC_CEE_APP_FIP_MASK) >>
687 I40E_AQC_CEE_APP_FIP_SHIFT;
688 dcbcfg->app[2].selector = I40E_APP_SEL_ETHTYPE;
689 dcbcfg->app[2].protocolid = I40E_APP_PROTOID_FIP;
694 * i40e_cee_to_dcb_config
695 * @cee_cfg: pointer to CEE configuration struct
696 * @dcbcfg: DCB configuration struct
698 * Convert CEE configuration from firmware to DCB configuration
700 static void i40e_cee_to_dcb_config(
701 struct i40e_aqc_get_cee_dcb_cfg_resp *cee_cfg,
702 struct i40e_dcbx_config *dcbcfg)
704 u32 status, tlv_status = LE32_TO_CPU(cee_cfg->tlv_status);
705 u16 app_prio = LE16_TO_CPU(cee_cfg->oper_app_prio);
706 u8 i, tc, err, sync, oper;
708 /* CEE PG data to ETS config */
709 dcbcfg->etscfg.maxtcs = cee_cfg->oper_num_tc;
711 /* Note that the FW creates the oper_prio_tc nibbles reversed
712 * from those in the CEE Priority Group sub-TLV.
714 for (i = 0; i < 4; i++) {
715 tc = (u8)((cee_cfg->oper_prio_tc[i] &
716 I40E_CEE_PGID_PRIO_0_MASK) >>
717 I40E_CEE_PGID_PRIO_0_SHIFT);
718 dcbcfg->etscfg.prioritytable[i*2] = tc;
719 tc = (u8)((cee_cfg->oper_prio_tc[i] &
720 I40E_CEE_PGID_PRIO_1_MASK) >>
721 I40E_CEE_PGID_PRIO_1_SHIFT);
722 dcbcfg->etscfg.prioritytable[i*2 + 1] = tc;
725 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
726 dcbcfg->etscfg.tcbwtable[i] = cee_cfg->oper_tc_bw[i];
728 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
729 if (dcbcfg->etscfg.prioritytable[i] == I40E_CEE_PGID_STRICT) {
730 /* Map it to next empty TC */
731 dcbcfg->etscfg.prioritytable[i] =
732 cee_cfg->oper_num_tc - 1;
733 dcbcfg->etscfg.tsatable[i] = I40E_IEEE_TSA_STRICT;
735 dcbcfg->etscfg.tsatable[i] = I40E_IEEE_TSA_ETS;
739 /* CEE PFC data to ETS config */
740 dcbcfg->pfc.pfcenable = cee_cfg->oper_pfc_en;
741 dcbcfg->pfc.pfccap = I40E_MAX_TRAFFIC_CLASS;
744 status = (tlv_status & I40E_AQC_CEE_FCOE_STATUS_MASK) >>
745 I40E_AQC_CEE_FCOE_STATUS_SHIFT;
746 err = (status & I40E_TLV_STATUS_ERR) ? 1 : 0;
747 sync = (status & I40E_TLV_STATUS_SYNC) ? 1 : 0;
748 oper = (status & I40E_TLV_STATUS_OPER) ? 1 : 0;
749 /* Add FCoE APP if Error is False and Oper/Sync is True */
750 if (!err && sync && oper) {
752 dcbcfg->app[i].priority =
753 (app_prio & I40E_AQC_CEE_APP_FCOE_MASK) >>
754 I40E_AQC_CEE_APP_FCOE_SHIFT;
755 dcbcfg->app[i].selector = I40E_APP_SEL_ETHTYPE;
756 dcbcfg->app[i].protocolid = I40E_APP_PROTOID_FCOE;
760 status = (tlv_status & I40E_AQC_CEE_ISCSI_STATUS_MASK) >>
761 I40E_AQC_CEE_ISCSI_STATUS_SHIFT;
762 err = (status & I40E_TLV_STATUS_ERR) ? 1 : 0;
763 sync = (status & I40E_TLV_STATUS_SYNC) ? 1 : 0;
764 oper = (status & I40E_TLV_STATUS_OPER) ? 1 : 0;
765 /* Add iSCSI APP if Error is False and Oper/Sync is True */
766 if (!err && sync && oper) {
768 dcbcfg->app[i].priority =
769 (app_prio & I40E_AQC_CEE_APP_ISCSI_MASK) >>
770 I40E_AQC_CEE_APP_ISCSI_SHIFT;
771 dcbcfg->app[i].selector = I40E_APP_SEL_TCPIP;
772 dcbcfg->app[i].protocolid = I40E_APP_PROTOID_ISCSI;
776 status = (tlv_status & I40E_AQC_CEE_FIP_STATUS_MASK) >>
777 I40E_AQC_CEE_FIP_STATUS_SHIFT;
778 err = (status & I40E_TLV_STATUS_ERR) ? 1 : 0;
779 sync = (status & I40E_TLV_STATUS_SYNC) ? 1 : 0;
780 oper = (status & I40E_TLV_STATUS_OPER) ? 1 : 0;
781 /* Add FIP APP if Error is False and Oper/Sync is True */
782 if (!err && sync && oper) {
784 dcbcfg->app[i].priority =
785 (app_prio & I40E_AQC_CEE_APP_FIP_MASK) >>
786 I40E_AQC_CEE_APP_FIP_SHIFT;
787 dcbcfg->app[i].selector = I40E_APP_SEL_ETHTYPE;
788 dcbcfg->app[i].protocolid = I40E_APP_PROTOID_FIP;
795 * i40e_get_ieee_dcb_config
796 * @hw: pointer to the hw struct
798 * Get IEEE mode DCB configuration from the Firmware
800 static enum i40e_status_code i40e_get_ieee_dcb_config(struct i40e_hw *hw)
802 enum i40e_status_code ret = I40E_SUCCESS;
805 hw->local_dcbx_config.dcbx_mode = I40E_DCBX_MODE_IEEE;
806 /* Get Local DCB Config */
807 ret = i40e_aq_get_dcb_config(hw, I40E_AQ_LLDP_MIB_LOCAL, 0,
808 &hw->local_dcbx_config);
812 /* Get Remote DCB Config */
813 ret = i40e_aq_get_dcb_config(hw, I40E_AQ_LLDP_MIB_REMOTE,
814 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
815 &hw->remote_dcbx_config);
816 /* Don't treat ENOENT as an error for Remote MIBs */
817 if (hw->aq.asq_last_status == I40E_AQ_RC_ENOENT)
825 * i40e_get_dcb_config
826 * @hw: pointer to the hw struct
828 * Get DCB configuration from the Firmware
830 enum i40e_status_code i40e_get_dcb_config(struct i40e_hw *hw)
832 enum i40e_status_code ret = I40E_SUCCESS;
833 struct i40e_aqc_get_cee_dcb_cfg_resp cee_cfg;
834 struct i40e_aqc_get_cee_dcb_cfg_v1_resp cee_v1_cfg;
836 /* If Firmware version < v4.33 on X710/XL710, IEEE only */
837 if ((hw->mac.type == I40E_MAC_XL710) &&
838 (((hw->aq.fw_maj_ver == 4) && (hw->aq.fw_min_ver < 33)) ||
839 (hw->aq.fw_maj_ver < 4)))
840 return i40e_get_ieee_dcb_config(hw);
842 /* If Firmware version == v4.33 on X710/XL710, use old CEE struct */
843 if ((hw->mac.type == I40E_MAC_XL710) &&
844 ((hw->aq.fw_maj_ver == 4) && (hw->aq.fw_min_ver == 33))) {
845 ret = i40e_aq_get_cee_dcb_config(hw, &cee_v1_cfg,
846 sizeof(cee_v1_cfg), NULL);
847 if (ret == I40E_SUCCESS) {
849 hw->local_dcbx_config.dcbx_mode = I40E_DCBX_MODE_CEE;
850 hw->local_dcbx_config.tlv_status =
851 LE16_TO_CPU(cee_v1_cfg.tlv_status);
852 i40e_cee_to_dcb_v1_config(&cee_v1_cfg,
853 &hw->local_dcbx_config);
856 ret = i40e_aq_get_cee_dcb_config(hw, &cee_cfg,
857 sizeof(cee_cfg), NULL);
858 if (ret == I40E_SUCCESS) {
860 hw->local_dcbx_config.dcbx_mode = I40E_DCBX_MODE_CEE;
861 hw->local_dcbx_config.tlv_status =
862 LE32_TO_CPU(cee_cfg.tlv_status);
863 i40e_cee_to_dcb_config(&cee_cfg,
864 &hw->local_dcbx_config);
868 /* CEE mode not enabled try querying IEEE data */
869 if (hw->aq.asq_last_status == I40E_AQ_RC_ENOENT)
870 return i40e_get_ieee_dcb_config(hw);
872 if (ret != I40E_SUCCESS)
875 /* Get CEE DCB Desired Config */
876 ret = i40e_aq_get_dcb_config(hw, I40E_AQ_LLDP_MIB_LOCAL, 0,
877 &hw->desired_dcbx_config);
881 /* Get Remote DCB Config */
882 ret = i40e_aq_get_dcb_config(hw, I40E_AQ_LLDP_MIB_REMOTE,
883 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
884 &hw->remote_dcbx_config);
885 /* Don't treat ENOENT as an error for Remote MIBs */
886 if (hw->aq.asq_last_status == I40E_AQ_RC_ENOENT)
895 * @hw: pointer to the hw struct
897 * Update DCB configuration from the Firmware
899 enum i40e_status_code i40e_init_dcb(struct i40e_hw *hw)
901 enum i40e_status_code ret = I40E_SUCCESS;
902 struct i40e_lldp_variables lldp_cfg;
905 if (!hw->func_caps.dcb)
908 /* Read LLDP NVM area */
909 ret = i40e_read_lldp_cfg(hw, &lldp_cfg);
913 /* Get the LLDP AdminStatus for the current port */
914 adminstatus = lldp_cfg.adminstatus >> (hw->port * 4);
917 /* LLDP agent disabled */
919 hw->dcbx_status = I40E_DCBX_STATUS_DISABLED;
923 /* Get DCBX status */
924 ret = i40e_get_dcbx_status(hw, &hw->dcbx_status);
928 /* Check the DCBX Status */
929 switch (hw->dcbx_status) {
930 case I40E_DCBX_STATUS_DONE:
931 case I40E_DCBX_STATUS_IN_PROGRESS:
932 /* Get current DCBX configuration */
933 ret = i40e_get_dcb_config(hw);
937 case I40E_DCBX_STATUS_DISABLED:
939 case I40E_DCBX_STATUS_NOT_STARTED:
940 case I40E_DCBX_STATUS_MULTIPLE_PEERS:
945 /* Configure the LLDP MIB change event */
946 ret = i40e_aq_cfg_lldp_mib_change_event(hw, TRUE, NULL);
954 * i40e_add_ieee_ets_tlv - Prepare ETS TLV in IEEE format
955 * @tlv: Fill the ETS config data in IEEE format
956 * @dcbcfg: Local store which holds the DCB Config
958 * Prepare IEEE 802.1Qaz ETS CFG TLV
960 static void i40e_add_ieee_ets_tlv(struct i40e_lldp_org_tlv *tlv,
961 struct i40e_dcbx_config *dcbcfg)
963 u8 priority0, priority1, maxtcwilling = 0;
964 struct i40e_dcb_ets_config *etscfg;
965 u16 offset = 0, typelength, i;
966 u8 *buf = tlv->tlvinfo;
969 typelength = (u16)((I40E_TLV_TYPE_ORG << I40E_LLDP_TLV_TYPE_SHIFT) |
970 I40E_IEEE_ETS_TLV_LENGTH);
971 tlv->typelength = I40E_HTONS(typelength);
973 ouisubtype = (u32)((I40E_IEEE_8021QAZ_OUI << I40E_LLDP_TLV_OUI_SHIFT) |
974 I40E_IEEE_SUBTYPE_ETS_CFG);
975 tlv->ouisubtype = I40E_HTONL(ouisubtype);
977 /* First Octet post subtype
978 * --------------------------
979 * |will-|CBS | Re- | Max |
980 * |ing | |served| TCs |
981 * --------------------------
982 * |1bit | 1bit|3 bits|3bits|
984 etscfg = &dcbcfg->etscfg;
986 maxtcwilling = BIT(I40E_IEEE_ETS_WILLING_SHIFT);
987 maxtcwilling |= etscfg->maxtcs & I40E_IEEE_ETS_MAXTC_MASK;
988 buf[offset] = maxtcwilling;
990 /* Move offset to Priority Assignment Table */
993 /* Priority Assignment Table (4 octets)
994 * Octets:| 1 | 2 | 3 | 4 |
995 * -----------------------------------------
996 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
997 * -----------------------------------------
998 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
999 * -----------------------------------------
1001 for (i = 0; i < 4; i++) {
1002 priority0 = etscfg->prioritytable[i * 2] & 0xF;
1003 priority1 = etscfg->prioritytable[i * 2 + 1] & 0xF;
1004 buf[offset] = (priority0 << I40E_IEEE_ETS_PRIO_1_SHIFT) |
1009 /* TC Bandwidth Table (8 octets)
1010 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
1011 * ---------------------------------
1012 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
1013 * ---------------------------------
1015 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
1016 buf[offset++] = etscfg->tcbwtable[i];
1018 /* TSA Assignment Table (8 octets)
1019 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
1020 * ---------------------------------
1021 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
1022 * ---------------------------------
1024 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
1025 buf[offset++] = etscfg->tsatable[i];
1029 * i40e_add_ieee_etsrec_tlv - Prepare ETS Recommended TLV in IEEE format
1030 * @tlv: Fill ETS Recommended TLV in IEEE format
1031 * @dcbcfg: Local store which holds the DCB Config
1033 * Prepare IEEE 802.1Qaz ETS REC TLV
1035 static void i40e_add_ieee_etsrec_tlv(struct i40e_lldp_org_tlv *tlv,
1036 struct i40e_dcbx_config *dcbcfg)
1038 struct i40e_dcb_ets_config *etsrec;
1039 u16 offset = 0, typelength, i;
1040 u8 priority0, priority1;
1041 u8 *buf = tlv->tlvinfo;
1044 typelength = (u16)((I40E_TLV_TYPE_ORG << I40E_LLDP_TLV_TYPE_SHIFT) |
1045 I40E_IEEE_ETS_TLV_LENGTH);
1046 tlv->typelength = I40E_HTONS(typelength);
1048 ouisubtype = (u32)((I40E_IEEE_8021QAZ_OUI << I40E_LLDP_TLV_OUI_SHIFT) |
1049 I40E_IEEE_SUBTYPE_ETS_REC);
1050 tlv->ouisubtype = I40E_HTONL(ouisubtype);
1052 etsrec = &dcbcfg->etsrec;
1053 /* First Octet is reserved */
1054 /* Move offset to Priority Assignment Table */
1057 /* Priority Assignment Table (4 octets)
1058 * Octets:| 1 | 2 | 3 | 4 |
1059 * -----------------------------------------
1060 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
1061 * -----------------------------------------
1062 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
1063 * -----------------------------------------
1065 for (i = 0; i < 4; i++) {
1066 priority0 = etsrec->prioritytable[i * 2] & 0xF;
1067 priority1 = etsrec->prioritytable[i * 2 + 1] & 0xF;
1068 buf[offset] = (priority0 << I40E_IEEE_ETS_PRIO_1_SHIFT) |
1073 /* TC Bandwidth Table (8 octets)
1074 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
1075 * ---------------------------------
1076 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
1077 * ---------------------------------
1079 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
1080 buf[offset++] = etsrec->tcbwtable[i];
1082 /* TSA Assignment Table (8 octets)
1083 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
1084 * ---------------------------------
1085 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
1086 * ---------------------------------
1088 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
1089 buf[offset++] = etsrec->tsatable[i];
1093 * i40e_add_ieee_pfc_tlv - Prepare PFC TLV in IEEE format
1094 * @tlv: Fill PFC TLV in IEEE format
1095 * @dcbcfg: Local store to get PFC CFG data
1097 * Prepare IEEE 802.1Qaz PFC CFG TLV
1099 static void i40e_add_ieee_pfc_tlv(struct i40e_lldp_org_tlv *tlv,
1100 struct i40e_dcbx_config *dcbcfg)
1102 u8 *buf = tlv->tlvinfo;
1106 typelength = (u16)((I40E_TLV_TYPE_ORG << I40E_LLDP_TLV_TYPE_SHIFT) |
1107 I40E_IEEE_PFC_TLV_LENGTH);
1108 tlv->typelength = I40E_HTONS(typelength);
1110 ouisubtype = (u32)((I40E_IEEE_8021QAZ_OUI << I40E_LLDP_TLV_OUI_SHIFT) |
1111 I40E_IEEE_SUBTYPE_PFC_CFG);
1112 tlv->ouisubtype = I40E_HTONL(ouisubtype);
1114 /* ----------------------------------------
1115 * |will-|MBC | Re- | PFC | PFC Enable |
1116 * |ing | |served| cap | |
1117 * -----------------------------------------
1118 * |1bit | 1bit|2 bits|4bits| 1 octet |
1120 if (dcbcfg->pfc.willing)
1121 buf[0] = BIT(I40E_IEEE_PFC_WILLING_SHIFT);
1123 if (dcbcfg->pfc.mbc)
1124 buf[0] |= BIT(I40E_IEEE_PFC_MBC_SHIFT);
1126 buf[0] |= dcbcfg->pfc.pfccap & 0xF;
1127 buf[1] = dcbcfg->pfc.pfcenable;
1131 * i40e_add_ieee_app_pri_tlv - Prepare APP TLV in IEEE format
1132 * @tlv: Fill APP TLV in IEEE format
1133 * @dcbcfg: Local store to get APP CFG data
1135 * Prepare IEEE 802.1Qaz APP CFG TLV
1137 static void i40e_add_ieee_app_pri_tlv(struct i40e_lldp_org_tlv *tlv,
1138 struct i40e_dcbx_config *dcbcfg)
1140 u16 typelength, length, offset = 0;
1141 u8 priority, selector, i = 0;
1142 u8 *buf = tlv->tlvinfo;
1145 /* No APP TLVs then just return */
1146 if (dcbcfg->numapps == 0)
1148 ouisubtype = (u32)((I40E_IEEE_8021QAZ_OUI << I40E_LLDP_TLV_OUI_SHIFT) |
1149 I40E_IEEE_SUBTYPE_APP_PRI);
1150 tlv->ouisubtype = I40E_HTONL(ouisubtype);
1152 /* Move offset to App Priority Table */
1154 /* Application Priority Table (3 octets)
1155 * Octets:| 1 | 2 | 3 |
1156 * -----------------------------------------
1157 * |Priority|Rsrvd| Sel | Protocol ID |
1158 * -----------------------------------------
1159 * Bits:|23 21|20 19|18 16|15 0|
1160 * -----------------------------------------
1162 while (i < dcbcfg->numapps) {
1163 priority = dcbcfg->app[i].priority & 0x7;
1164 selector = dcbcfg->app[i].selector & 0x7;
1165 buf[offset] = (priority << I40E_IEEE_APP_PRIO_SHIFT) | selector;
1166 buf[offset + 1] = (dcbcfg->app[i].protocolid >> 0x8) & 0xFF;
1167 buf[offset + 2] = dcbcfg->app[i].protocolid & 0xFF;
1168 /* Move to next app */
1171 if (i >= I40E_DCBX_MAX_APPS)
1174 /* length includes size of ouisubtype + 1 reserved + 3*numapps */
1175 length = sizeof(tlv->ouisubtype) + 1 + (i*3);
1176 typelength = (u16)((I40E_TLV_TYPE_ORG << I40E_LLDP_TLV_TYPE_SHIFT) |
1178 tlv->typelength = I40E_HTONS(typelength);
1182 * i40e_add_dcb_tlv - Add all IEEE TLVs
1183 * @tlv: pointer to org tlv
1185 * add tlv information
1187 static void i40e_add_dcb_tlv(struct i40e_lldp_org_tlv *tlv,
1188 struct i40e_dcbx_config *dcbcfg,
1192 case I40E_IEEE_TLV_ID_ETS_CFG:
1193 i40e_add_ieee_ets_tlv(tlv, dcbcfg);
1195 case I40E_IEEE_TLV_ID_ETS_REC:
1196 i40e_add_ieee_etsrec_tlv(tlv, dcbcfg);
1198 case I40E_IEEE_TLV_ID_PFC_CFG:
1199 i40e_add_ieee_pfc_tlv(tlv, dcbcfg);
1201 case I40E_IEEE_TLV_ID_APP_PRI:
1202 i40e_add_ieee_app_pri_tlv(tlv, dcbcfg);
1210 * i40e_set_dcb_config - Set the local LLDP MIB to FW
1211 * @hw: pointer to the hw struct
1213 * Set DCB configuration to the Firmware
1215 enum i40e_status_code i40e_set_dcb_config(struct i40e_hw *hw)
1217 enum i40e_status_code ret = I40E_SUCCESS;
1218 struct i40e_dcbx_config *dcbcfg;
1219 struct i40e_virt_mem mem;
1220 u8 mib_type, *lldpmib;
1223 /* update the hw local config */
1224 dcbcfg = &hw->local_dcbx_config;
1225 /* Allocate the LLDPDU */
1226 ret = i40e_allocate_virt_mem(hw, &mem, I40E_LLDPDU_SIZE);
1230 mib_type = SET_LOCAL_MIB_AC_TYPE_LOCAL_MIB;
1231 if (dcbcfg->app_mode == I40E_DCBX_APPS_NON_WILLING) {
1232 mib_type |= SET_LOCAL_MIB_AC_TYPE_NON_WILLING_APPS <<
1233 SET_LOCAL_MIB_AC_TYPE_NON_WILLING_APPS_SHIFT;
1235 lldpmib = (u8 *)mem.va;
1236 ret = i40e_dcb_config_to_lldp(lldpmib, &miblen, dcbcfg);
1237 ret = i40e_aq_set_lldp_mib(hw, mib_type, (void *)lldpmib, miblen, NULL);
1239 i40e_free_virt_mem(hw, &mem);
1244 * i40e_dcb_config_to_lldp - Convert Dcbconfig to MIB format
1245 * @hw: pointer to the hw struct
1246 * @dcbcfg: store for LLDPDU data
1248 * send DCB configuration to FW
1250 enum i40e_status_code i40e_dcb_config_to_lldp(u8 *lldpmib, u16 *miblen,
1251 struct i40e_dcbx_config *dcbcfg)
1253 u16 length, offset = 0, tlvid = I40E_TLV_ID_START;
1254 enum i40e_status_code ret = I40E_SUCCESS;
1255 struct i40e_lldp_org_tlv *tlv;
1258 tlv = (struct i40e_lldp_org_tlv *)lldpmib;
1260 i40e_add_dcb_tlv(tlv, dcbcfg, tlvid++);
1261 typelength = I40E_NTOHS(tlv->typelength);
1262 length = (u16)((typelength & I40E_LLDP_TLV_LEN_MASK) >>
1263 I40E_LLDP_TLV_LEN_SHIFT);
1265 offset += length + 2;
1266 /* END TLV or beyond LLDPDU size */
1267 if ((tlvid >= I40E_TLV_ID_END_OF_LLDPPDU) ||
1268 (offset > I40E_LLDPDU_SIZE))
1270 /* Move to next TLV */
1272 tlv = (struct i40e_lldp_org_tlv *)((char *)tlv +
1273 sizeof(tlv->typelength) + length);
1281 * _i40e_read_lldp_cfg - generic read of LLDP Configuration data from NVM
1282 * @hw: pointer to the HW structure
1283 * @lldp_cfg: pointer to hold lldp configuration variables
1284 * @module: address of the module pointer
1285 * @word_offset: offset of LLDP configuration
1287 * Reads the LLDP configuration data from NVM using passed addresses
1289 static enum i40e_status_code _i40e_read_lldp_cfg(struct i40e_hw *hw,
1290 struct i40e_lldp_variables *lldp_cfg,
1291 u8 module, u32 word_offset)
1293 u32 address, offset = (2 * word_offset);
1294 enum i40e_status_code ret;
1298 ret = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1299 if (ret != I40E_SUCCESS)
1302 ret = i40e_aq_read_nvm(hw, 0x0, module * 2, sizeof(raw_mem), &raw_mem,
1304 i40e_release_nvm(hw);
1305 if (ret != I40E_SUCCESS)
1308 mem = LE16_TO_CPU(raw_mem);
1309 /* Check if this pointer needs to be read in word size or 4K sector
1312 if (mem & I40E_PTR_TYPE)
1313 address = (0x7FFF & mem) * 4096;
1315 address = (0x7FFF & mem) * 2;
1317 ret = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1318 if (ret != I40E_SUCCESS)
1321 ret = i40e_aq_read_nvm(hw, module, offset, sizeof(raw_mem), &raw_mem,
1323 i40e_release_nvm(hw);
1324 if (ret != I40E_SUCCESS)
1327 mem = LE16_TO_CPU(raw_mem);
1328 offset = mem + word_offset;
1331 ret = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1332 if (ret != I40E_SUCCESS)
1335 ret = i40e_aq_read_nvm(hw, 0, address + offset,
1336 sizeof(struct i40e_lldp_variables), lldp_cfg,
1338 i40e_release_nvm(hw);
1345 * i40e_read_lldp_cfg - read LLDP Configuration data from NVM
1346 * @hw: pointer to the HW structure
1347 * @lldp_cfg: pointer to hold lldp configuration variables
1349 * Reads the LLDP configuration data from NVM
1351 enum i40e_status_code i40e_read_lldp_cfg(struct i40e_hw *hw,
1352 struct i40e_lldp_variables *lldp_cfg)
1354 enum i40e_status_code ret = I40E_SUCCESS;
1358 return I40E_ERR_PARAM;
1360 ret = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1361 if (ret != I40E_SUCCESS)
1364 ret = i40e_aq_read_nvm(hw, I40E_SR_NVM_CONTROL_WORD, 0, sizeof(mem),
1366 i40e_release_nvm(hw);
1367 if (ret != I40E_SUCCESS)
1370 /* Read a bit that holds information whether we are running flat or
1371 * structured NVM image. Flat image has LLDP configuration in shadow
1372 * ram, so there is a need to pass different addresses for both cases.
1374 if (mem & I40E_SR_NVM_MAP_STRUCTURE_TYPE) {
1376 ret = _i40e_read_lldp_cfg(hw, lldp_cfg, I40E_SR_EMP_MODULE_PTR,
1377 I40E_SR_LLDP_CFG_PTR);
1379 /* Good old structured NVM image */
1380 ret = _i40e_read_lldp_cfg(hw, lldp_cfg, I40E_EMP_MODULE_PTR,
1381 I40E_NVM_LLDP_CFG_PTR);