1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2001-2018
5 #include "i40e_adminq.h"
6 #include "i40e_prototype.h"
10 * i40e_get_dcbx_status
11 * @hw: pointer to the hw struct
12 * @status: Embedded DCBX Engine Status
14 * Get the DCBX status from the Firmware
16 enum i40e_status_code i40e_get_dcbx_status(struct i40e_hw *hw, u16 *status)
21 return I40E_ERR_PARAM;
23 reg = rd32(hw, I40E_PRTDCB_GENS);
24 *status = (u16)((reg & I40E_PRTDCB_GENS_DCBX_STATUS_MASK) >>
25 I40E_PRTDCB_GENS_DCBX_STATUS_SHIFT);
31 * i40e_parse_ieee_etscfg_tlv
32 * @tlv: IEEE 802.1Qaz ETS CFG TLV
33 * @dcbcfg: Local store to update ETS CFG data
35 * Parses IEEE 802.1Qaz ETS CFG TLV
37 static void i40e_parse_ieee_etscfg_tlv(struct i40e_lldp_org_tlv *tlv,
38 struct i40e_dcbx_config *dcbcfg)
40 struct i40e_dcb_ets_config *etscfg;
41 u8 *buf = tlv->tlvinfo;
46 /* First Octet post subtype
47 * --------------------------
48 * |will-|CBS | Re- | Max |
49 * |ing | |served| TCs |
50 * --------------------------
51 * |1bit | 1bit|3 bits|3bits|
53 etscfg = &dcbcfg->etscfg;
54 etscfg->willing = (u8)((buf[offset] & I40E_IEEE_ETS_WILLING_MASK) >>
55 I40E_IEEE_ETS_WILLING_SHIFT);
56 etscfg->cbs = (u8)((buf[offset] & I40E_IEEE_ETS_CBS_MASK) >>
57 I40E_IEEE_ETS_CBS_SHIFT);
58 etscfg->maxtcs = (u8)((buf[offset] & I40E_IEEE_ETS_MAXTC_MASK) >>
59 I40E_IEEE_ETS_MAXTC_SHIFT);
61 /* Move offset to Priority Assignment Table */
64 /* Priority Assignment Table (4 octets)
65 * Octets:| 1 | 2 | 3 | 4 |
66 * -----------------------------------------
67 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
68 * -----------------------------------------
69 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
70 * -----------------------------------------
72 for (i = 0; i < 4; i++) {
73 priority = (u8)((buf[offset] & I40E_IEEE_ETS_PRIO_1_MASK) >>
74 I40E_IEEE_ETS_PRIO_1_SHIFT);
75 etscfg->prioritytable[i * 2] = priority;
76 priority = (u8)((buf[offset] & I40E_IEEE_ETS_PRIO_0_MASK) >>
77 I40E_IEEE_ETS_PRIO_0_SHIFT);
78 etscfg->prioritytable[i * 2 + 1] = priority;
82 /* TC Bandwidth Table (8 octets)
83 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
84 * ---------------------------------
85 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
86 * ---------------------------------
88 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
89 etscfg->tcbwtable[i] = buf[offset++];
91 /* TSA Assignment Table (8 octets)
92 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
93 * ---------------------------------
94 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
95 * ---------------------------------
97 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
98 etscfg->tsatable[i] = buf[offset++];
102 * i40e_parse_ieee_etsrec_tlv
103 * @tlv: IEEE 802.1Qaz ETS REC TLV
104 * @dcbcfg: Local store to update ETS REC data
106 * Parses IEEE 802.1Qaz ETS REC TLV
108 static void i40e_parse_ieee_etsrec_tlv(struct i40e_lldp_org_tlv *tlv,
109 struct i40e_dcbx_config *dcbcfg)
111 u8 *buf = tlv->tlvinfo;
116 /* Move offset to priority table */
119 /* Priority Assignment Table (4 octets)
120 * Octets:| 1 | 2 | 3 | 4 |
121 * -----------------------------------------
122 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
123 * -----------------------------------------
124 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
125 * -----------------------------------------
127 for (i = 0; i < 4; i++) {
128 priority = (u8)((buf[offset] & I40E_IEEE_ETS_PRIO_1_MASK) >>
129 I40E_IEEE_ETS_PRIO_1_SHIFT);
130 dcbcfg->etsrec.prioritytable[i*2] = priority;
131 priority = (u8)((buf[offset] & I40E_IEEE_ETS_PRIO_0_MASK) >>
132 I40E_IEEE_ETS_PRIO_0_SHIFT);
133 dcbcfg->etsrec.prioritytable[i*2 + 1] = priority;
137 /* TC Bandwidth Table (8 octets)
138 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
139 * ---------------------------------
140 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
141 * ---------------------------------
143 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
144 dcbcfg->etsrec.tcbwtable[i] = buf[offset++];
146 /* TSA Assignment Table (8 octets)
147 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
148 * ---------------------------------
149 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
150 * ---------------------------------
152 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
153 dcbcfg->etsrec.tsatable[i] = buf[offset++];
157 * i40e_parse_ieee_pfccfg_tlv
158 * @tlv: IEEE 802.1Qaz PFC CFG TLV
159 * @dcbcfg: Local store to update PFC CFG data
161 * Parses IEEE 802.1Qaz PFC CFG TLV
163 static void i40e_parse_ieee_pfccfg_tlv(struct i40e_lldp_org_tlv *tlv,
164 struct i40e_dcbx_config *dcbcfg)
166 u8 *buf = tlv->tlvinfo;
168 /* ----------------------------------------
169 * |will-|MBC | Re- | PFC | PFC Enable |
170 * |ing | |served| cap | |
171 * -----------------------------------------
172 * |1bit | 1bit|2 bits|4bits| 1 octet |
174 dcbcfg->pfc.willing = (u8)((buf[0] & I40E_IEEE_PFC_WILLING_MASK) >>
175 I40E_IEEE_PFC_WILLING_SHIFT);
176 dcbcfg->pfc.mbc = (u8)((buf[0] & I40E_IEEE_PFC_MBC_MASK) >>
177 I40E_IEEE_PFC_MBC_SHIFT);
178 dcbcfg->pfc.pfccap = (u8)((buf[0] & I40E_IEEE_PFC_CAP_MASK) >>
179 I40E_IEEE_PFC_CAP_SHIFT);
180 dcbcfg->pfc.pfcenable = buf[1];
184 * i40e_parse_ieee_app_tlv
185 * @tlv: IEEE 802.1Qaz APP TLV
186 * @dcbcfg: Local store to update APP PRIO data
188 * Parses IEEE 802.1Qaz APP PRIO TLV
190 static void i40e_parse_ieee_app_tlv(struct i40e_lldp_org_tlv *tlv,
191 struct i40e_dcbx_config *dcbcfg)
199 typelength = I40E_NTOHS(tlv->typelength);
200 length = (u16)((typelength & I40E_LLDP_TLV_LEN_MASK) >>
201 I40E_LLDP_TLV_LEN_SHIFT);
204 /* The App priority table starts 5 octets after TLV header */
205 length -= (sizeof(tlv->ouisubtype) + 1);
207 /* Move offset to App Priority Table */
210 /* Application Priority Table (3 octets)
211 * Octets:| 1 | 2 | 3 |
212 * -----------------------------------------
213 * |Priority|Rsrvd| Sel | Protocol ID |
214 * -----------------------------------------
215 * Bits:|23 21|20 19|18 16|15 0|
216 * -----------------------------------------
218 while (offset < length) {
219 dcbcfg->app[i].priority = (u8)((buf[offset] &
220 I40E_IEEE_APP_PRIO_MASK) >>
221 I40E_IEEE_APP_PRIO_SHIFT);
222 dcbcfg->app[i].selector = (u8)((buf[offset] &
223 I40E_IEEE_APP_SEL_MASK) >>
224 I40E_IEEE_APP_SEL_SHIFT);
225 dcbcfg->app[i].protocolid = (buf[offset + 1] << 0x8) |
227 /* Move to next app */
230 if (i >= I40E_DCBX_MAX_APPS)
238 * i40e_parse_ieee_etsrec_tlv
239 * @tlv: IEEE 802.1Qaz TLV
240 * @dcbcfg: Local store to update ETS REC data
242 * Get the TLV subtype and send it to parsing function
243 * based on the subtype value
245 static void i40e_parse_ieee_tlv(struct i40e_lldp_org_tlv *tlv,
246 struct i40e_dcbx_config *dcbcfg)
251 ouisubtype = I40E_NTOHL(tlv->ouisubtype);
252 subtype = (u8)((ouisubtype & I40E_LLDP_TLV_SUBTYPE_MASK) >>
253 I40E_LLDP_TLV_SUBTYPE_SHIFT);
255 case I40E_IEEE_SUBTYPE_ETS_CFG:
256 i40e_parse_ieee_etscfg_tlv(tlv, dcbcfg);
258 case I40E_IEEE_SUBTYPE_ETS_REC:
259 i40e_parse_ieee_etsrec_tlv(tlv, dcbcfg);
261 case I40E_IEEE_SUBTYPE_PFC_CFG:
262 i40e_parse_ieee_pfccfg_tlv(tlv, dcbcfg);
264 case I40E_IEEE_SUBTYPE_APP_PRI:
265 i40e_parse_ieee_app_tlv(tlv, dcbcfg);
273 * i40e_parse_cee_pgcfg_tlv
274 * @tlv: CEE DCBX PG CFG TLV
275 * @dcbcfg: Local store to update ETS CFG data
277 * Parses CEE DCBX PG CFG TLV
279 static void i40e_parse_cee_pgcfg_tlv(struct i40e_cee_feat_tlv *tlv,
280 struct i40e_dcbx_config *dcbcfg)
282 struct i40e_dcb_ets_config *etscfg;
283 u8 *buf = tlv->tlvinfo;
288 etscfg = &dcbcfg->etscfg;
290 if (tlv->en_will_err & I40E_CEE_FEAT_TLV_WILLING_MASK)
294 /* Priority Group Table (4 octets)
295 * Octets:| 1 | 2 | 3 | 4 |
296 * -----------------------------------------
297 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
298 * -----------------------------------------
299 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
300 * -----------------------------------------
302 for (i = 0; i < 4; i++) {
303 priority = (u8)((buf[offset] & I40E_CEE_PGID_PRIO_1_MASK) >>
304 I40E_CEE_PGID_PRIO_1_SHIFT);
305 etscfg->prioritytable[i * 2] = priority;
306 priority = (u8)((buf[offset] & I40E_CEE_PGID_PRIO_0_MASK) >>
307 I40E_CEE_PGID_PRIO_0_SHIFT);
308 etscfg->prioritytable[i * 2 + 1] = priority;
312 /* PG Percentage Table (8 octets)
313 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
314 * ---------------------------------
315 * |pg0|pg1|pg2|pg3|pg4|pg5|pg6|pg7|
316 * ---------------------------------
318 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
319 etscfg->tcbwtable[i] = buf[offset++];
321 /* Number of TCs supported (1 octet) */
322 etscfg->maxtcs = buf[offset];
326 * i40e_parse_cee_pfccfg_tlv
327 * @tlv: CEE DCBX PFC CFG TLV
328 * @dcbcfg: Local store to update PFC CFG data
330 * Parses CEE DCBX PFC CFG TLV
332 static void i40e_parse_cee_pfccfg_tlv(struct i40e_cee_feat_tlv *tlv,
333 struct i40e_dcbx_config *dcbcfg)
335 u8 *buf = tlv->tlvinfo;
337 if (tlv->en_will_err & I40E_CEE_FEAT_TLV_WILLING_MASK)
338 dcbcfg->pfc.willing = 1;
340 /* ------------------------
341 * | PFC Enable | PFC TCs |
342 * ------------------------
343 * | 1 octet | 1 octet |
345 dcbcfg->pfc.pfcenable = buf[0];
346 dcbcfg->pfc.pfccap = buf[1];
350 * i40e_parse_cee_app_tlv
351 * @tlv: CEE DCBX APP TLV
352 * @dcbcfg: Local store to update APP PRIO data
354 * Parses CEE DCBX APP PRIO TLV
356 static void i40e_parse_cee_app_tlv(struct i40e_cee_feat_tlv *tlv,
357 struct i40e_dcbx_config *dcbcfg)
359 u16 length, typelength, offset = 0;
360 struct i40e_cee_app_prio *app;
363 typelength = I40E_NTOHS(tlv->hdr.typelen);
364 length = (u16)((typelength & I40E_LLDP_TLV_LEN_MASK) >>
365 I40E_LLDP_TLV_LEN_SHIFT);
367 dcbcfg->numapps = length / sizeof(*app);
368 if (!dcbcfg->numapps)
370 if (dcbcfg->numapps > I40E_DCBX_MAX_APPS)
371 dcbcfg->numapps = I40E_DCBX_MAX_APPS;
373 for (i = 0; i < dcbcfg->numapps; i++) {
376 app = (struct i40e_cee_app_prio *)(tlv->tlvinfo + offset);
377 for (up = 0; up < I40E_MAX_USER_PRIORITY; up++) {
378 if (app->prio_map & BIT(up))
381 dcbcfg->app[i].priority = up;
383 /* Get Selector from lower 2 bits, and convert to IEEE */
384 selector = (app->upper_oui_sel & I40E_CEE_APP_SELECTOR_MASK);
386 case I40E_CEE_APP_SEL_ETHTYPE:
387 dcbcfg->app[i].selector = I40E_APP_SEL_ETHTYPE;
389 case I40E_CEE_APP_SEL_TCPIP:
390 dcbcfg->app[i].selector = I40E_APP_SEL_TCPIP;
393 /* Keep selector as it is for unknown types */
394 dcbcfg->app[i].selector = selector;
397 dcbcfg->app[i].protocolid = I40E_NTOHS(app->protocol);
398 /* Move to next app */
399 offset += sizeof(*app);
406 * @dcbcfg: Local store to update DCBX config data
408 * Get the TLV subtype and send it to parsing function
409 * based on the subtype value
411 static void i40e_parse_cee_tlv(struct i40e_lldp_org_tlv *tlv,
412 struct i40e_dcbx_config *dcbcfg)
414 u16 len, tlvlen, sublen, typelength;
415 struct i40e_cee_feat_tlv *sub_tlv;
416 u8 subtype, feat_tlv_count = 0;
419 ouisubtype = I40E_NTOHL(tlv->ouisubtype);
420 subtype = (u8)((ouisubtype & I40E_LLDP_TLV_SUBTYPE_MASK) >>
421 I40E_LLDP_TLV_SUBTYPE_SHIFT);
422 /* Return if not CEE DCBX */
423 if (subtype != I40E_CEE_DCBX_TYPE)
426 typelength = I40E_NTOHS(tlv->typelength);
427 tlvlen = (u16)((typelength & I40E_LLDP_TLV_LEN_MASK) >>
428 I40E_LLDP_TLV_LEN_SHIFT);
429 len = sizeof(tlv->typelength) + sizeof(ouisubtype) +
430 sizeof(struct i40e_cee_ctrl_tlv);
431 /* Return if no CEE DCBX Feature TLVs */
435 sub_tlv = (struct i40e_cee_feat_tlv *)((char *)tlv + len);
436 while (feat_tlv_count < I40E_CEE_MAX_FEAT_TYPE) {
437 typelength = I40E_NTOHS(sub_tlv->hdr.typelen);
438 sublen = (u16)((typelength &
439 I40E_LLDP_TLV_LEN_MASK) >>
440 I40E_LLDP_TLV_LEN_SHIFT);
441 subtype = (u8)((typelength & I40E_LLDP_TLV_TYPE_MASK) >>
442 I40E_LLDP_TLV_TYPE_SHIFT);
444 case I40E_CEE_SUBTYPE_PG_CFG:
445 i40e_parse_cee_pgcfg_tlv(sub_tlv, dcbcfg);
447 case I40E_CEE_SUBTYPE_PFC_CFG:
448 i40e_parse_cee_pfccfg_tlv(sub_tlv, dcbcfg);
450 case I40E_CEE_SUBTYPE_APP_PRI:
451 i40e_parse_cee_app_tlv(sub_tlv, dcbcfg);
454 return; /* Invalid Sub-type return */
457 /* Move to next sub TLV */
458 sub_tlv = (struct i40e_cee_feat_tlv *)((char *)sub_tlv +
459 sizeof(sub_tlv->hdr.typelen) +
466 * @tlv: Organization specific TLV
467 * @dcbcfg: Local store to update ETS REC data
469 * Currently only IEEE 802.1Qaz TLV is supported, all others
472 static void i40e_parse_org_tlv(struct i40e_lldp_org_tlv *tlv,
473 struct i40e_dcbx_config *dcbcfg)
478 ouisubtype = I40E_NTOHL(tlv->ouisubtype);
479 oui = (u32)((ouisubtype & I40E_LLDP_TLV_OUI_MASK) >>
480 I40E_LLDP_TLV_OUI_SHIFT);
482 case I40E_IEEE_8021QAZ_OUI:
483 i40e_parse_ieee_tlv(tlv, dcbcfg);
485 case I40E_CEE_DCBX_OUI:
486 i40e_parse_cee_tlv(tlv, dcbcfg);
494 * i40e_lldp_to_dcb_config
495 * @lldpmib: LLDPDU to be parsed
496 * @dcbcfg: store for LLDPDU data
498 * Parse DCB configuration from the LLDPDU
500 enum i40e_status_code i40e_lldp_to_dcb_config(u8 *lldpmib,
501 struct i40e_dcbx_config *dcbcfg)
503 enum i40e_status_code ret = I40E_SUCCESS;
504 struct i40e_lldp_org_tlv *tlv;
510 if (!lldpmib || !dcbcfg)
511 return I40E_ERR_PARAM;
513 /* set to the start of LLDPDU */
514 lldpmib += I40E_LLDP_MIB_HLEN;
515 tlv = (struct i40e_lldp_org_tlv *)lldpmib;
517 typelength = I40E_NTOHS(tlv->typelength);
518 type = (u16)((typelength & I40E_LLDP_TLV_TYPE_MASK) >>
519 I40E_LLDP_TLV_TYPE_SHIFT);
520 length = (u16)((typelength & I40E_LLDP_TLV_LEN_MASK) >>
521 I40E_LLDP_TLV_LEN_SHIFT);
522 offset += sizeof(typelength) + length;
524 /* END TLV or beyond LLDPDU size */
525 if ((type == I40E_TLV_TYPE_END) || (offset > I40E_LLDPDU_SIZE))
529 case I40E_TLV_TYPE_ORG:
530 i40e_parse_org_tlv(tlv, dcbcfg);
536 /* Move to next TLV */
537 tlv = (struct i40e_lldp_org_tlv *)((char *)tlv +
538 sizeof(tlv->typelength) +
546 * i40e_aq_get_dcb_config
547 * @hw: pointer to the hw struct
548 * @mib_type: mib type for the query
549 * @bridgetype: bridge type for the query (remote)
550 * @dcbcfg: store for LLDPDU data
552 * Query DCB configuration from the Firmware
554 enum i40e_status_code i40e_aq_get_dcb_config(struct i40e_hw *hw, u8 mib_type,
556 struct i40e_dcbx_config *dcbcfg)
558 enum i40e_status_code ret = I40E_SUCCESS;
559 struct i40e_virt_mem mem;
562 /* Allocate the LLDPDU */
563 ret = i40e_allocate_virt_mem(hw, &mem, I40E_LLDPDU_SIZE);
567 lldpmib = (u8 *)mem.va;
568 ret = i40e_aq_get_lldp_mib(hw, bridgetype, mib_type,
569 (void *)lldpmib, I40E_LLDPDU_SIZE,
574 /* Parse LLDP MIB to get dcb configuration */
575 ret = i40e_lldp_to_dcb_config(lldpmib, dcbcfg);
578 i40e_free_virt_mem(hw, &mem);
583 * i40e_cee_to_dcb_v1_config
584 * @cee_cfg: pointer to CEE v1 response configuration struct
585 * @dcbcfg: DCB configuration struct
587 * Convert CEE v1 configuration from firmware to DCB configuration
589 static void i40e_cee_to_dcb_v1_config(
590 struct i40e_aqc_get_cee_dcb_cfg_v1_resp *cee_cfg,
591 struct i40e_dcbx_config *dcbcfg)
593 u16 status, tlv_status = LE16_TO_CPU(cee_cfg->tlv_status);
594 u16 app_prio = LE16_TO_CPU(cee_cfg->oper_app_prio);
597 /* CEE PG data to ETS config */
598 dcbcfg->etscfg.maxtcs = cee_cfg->oper_num_tc;
600 /* Note that the FW creates the oper_prio_tc nibbles reversed
601 * from those in the CEE Priority Group sub-TLV.
603 for (i = 0; i < 4; i++) {
604 tc = (u8)((cee_cfg->oper_prio_tc[i] &
605 I40E_CEE_PGID_PRIO_0_MASK) >>
606 I40E_CEE_PGID_PRIO_0_SHIFT);
607 dcbcfg->etscfg.prioritytable[i*2] = tc;
608 tc = (u8)((cee_cfg->oper_prio_tc[i] &
609 I40E_CEE_PGID_PRIO_1_MASK) >>
610 I40E_CEE_PGID_PRIO_1_SHIFT);
611 dcbcfg->etscfg.prioritytable[i*2 + 1] = tc;
614 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
615 dcbcfg->etscfg.tcbwtable[i] = cee_cfg->oper_tc_bw[i];
617 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
618 if (dcbcfg->etscfg.prioritytable[i] == I40E_CEE_PGID_STRICT) {
619 /* Map it to next empty TC */
620 dcbcfg->etscfg.prioritytable[i] =
621 cee_cfg->oper_num_tc - 1;
622 dcbcfg->etscfg.tsatable[i] = I40E_IEEE_TSA_STRICT;
624 dcbcfg->etscfg.tsatable[i] = I40E_IEEE_TSA_ETS;
628 /* CEE PFC data to ETS config */
629 dcbcfg->pfc.pfcenable = cee_cfg->oper_pfc_en;
630 dcbcfg->pfc.pfccap = I40E_MAX_TRAFFIC_CLASS;
632 status = (tlv_status & I40E_AQC_CEE_APP_STATUS_MASK) >>
633 I40E_AQC_CEE_APP_STATUS_SHIFT;
634 err = (status & I40E_TLV_STATUS_ERR) ? 1 : 0;
635 /* Add APPs if Error is False */
637 /* CEE operating configuration supports FCoE/iSCSI/FIP only */
638 dcbcfg->numapps = I40E_CEE_OPER_MAX_APPS;
641 dcbcfg->app[0].priority =
642 (app_prio & I40E_AQC_CEE_APP_FCOE_MASK) >>
643 I40E_AQC_CEE_APP_FCOE_SHIFT;
644 dcbcfg->app[0].selector = I40E_APP_SEL_ETHTYPE;
645 dcbcfg->app[0].protocolid = I40E_APP_PROTOID_FCOE;
648 dcbcfg->app[1].priority =
649 (app_prio & I40E_AQC_CEE_APP_ISCSI_MASK) >>
650 I40E_AQC_CEE_APP_ISCSI_SHIFT;
651 dcbcfg->app[1].selector = I40E_APP_SEL_TCPIP;
652 dcbcfg->app[1].protocolid = I40E_APP_PROTOID_ISCSI;
655 dcbcfg->app[2].priority =
656 (app_prio & I40E_AQC_CEE_APP_FIP_MASK) >>
657 I40E_AQC_CEE_APP_FIP_SHIFT;
658 dcbcfg->app[2].selector = I40E_APP_SEL_ETHTYPE;
659 dcbcfg->app[2].protocolid = I40E_APP_PROTOID_FIP;
664 * i40e_cee_to_dcb_config
665 * @cee_cfg: pointer to CEE configuration struct
666 * @dcbcfg: DCB configuration struct
668 * Convert CEE configuration from firmware to DCB configuration
670 static void i40e_cee_to_dcb_config(
671 struct i40e_aqc_get_cee_dcb_cfg_resp *cee_cfg,
672 struct i40e_dcbx_config *dcbcfg)
674 u32 status, tlv_status = LE32_TO_CPU(cee_cfg->tlv_status);
675 u16 app_prio = LE16_TO_CPU(cee_cfg->oper_app_prio);
676 u8 i, tc, err, sync, oper;
678 /* CEE PG data to ETS config */
679 dcbcfg->etscfg.maxtcs = cee_cfg->oper_num_tc;
681 /* Note that the FW creates the oper_prio_tc nibbles reversed
682 * from those in the CEE Priority Group sub-TLV.
684 for (i = 0; i < 4; i++) {
685 tc = (u8)((cee_cfg->oper_prio_tc[i] &
686 I40E_CEE_PGID_PRIO_0_MASK) >>
687 I40E_CEE_PGID_PRIO_0_SHIFT);
688 dcbcfg->etscfg.prioritytable[i*2] = tc;
689 tc = (u8)((cee_cfg->oper_prio_tc[i] &
690 I40E_CEE_PGID_PRIO_1_MASK) >>
691 I40E_CEE_PGID_PRIO_1_SHIFT);
692 dcbcfg->etscfg.prioritytable[i*2 + 1] = tc;
695 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
696 dcbcfg->etscfg.tcbwtable[i] = cee_cfg->oper_tc_bw[i];
698 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
699 if (dcbcfg->etscfg.prioritytable[i] == I40E_CEE_PGID_STRICT) {
700 /* Map it to next empty TC */
701 dcbcfg->etscfg.prioritytable[i] =
702 cee_cfg->oper_num_tc - 1;
703 dcbcfg->etscfg.tsatable[i] = I40E_IEEE_TSA_STRICT;
705 dcbcfg->etscfg.tsatable[i] = I40E_IEEE_TSA_ETS;
709 /* CEE PFC data to ETS config */
710 dcbcfg->pfc.pfcenable = cee_cfg->oper_pfc_en;
711 dcbcfg->pfc.pfccap = I40E_MAX_TRAFFIC_CLASS;
714 status = (tlv_status & I40E_AQC_CEE_FCOE_STATUS_MASK) >>
715 I40E_AQC_CEE_FCOE_STATUS_SHIFT;
716 err = (status & I40E_TLV_STATUS_ERR) ? 1 : 0;
717 sync = (status & I40E_TLV_STATUS_SYNC) ? 1 : 0;
718 oper = (status & I40E_TLV_STATUS_OPER) ? 1 : 0;
719 /* Add FCoE APP if Error is False and Oper/Sync is True */
720 if (!err && sync && oper) {
722 dcbcfg->app[i].priority =
723 (app_prio & I40E_AQC_CEE_APP_FCOE_MASK) >>
724 I40E_AQC_CEE_APP_FCOE_SHIFT;
725 dcbcfg->app[i].selector = I40E_APP_SEL_ETHTYPE;
726 dcbcfg->app[i].protocolid = I40E_APP_PROTOID_FCOE;
730 status = (tlv_status & I40E_AQC_CEE_ISCSI_STATUS_MASK) >>
731 I40E_AQC_CEE_ISCSI_STATUS_SHIFT;
732 err = (status & I40E_TLV_STATUS_ERR) ? 1 : 0;
733 sync = (status & I40E_TLV_STATUS_SYNC) ? 1 : 0;
734 oper = (status & I40E_TLV_STATUS_OPER) ? 1 : 0;
735 /* Add iSCSI APP if Error is False and Oper/Sync is True */
736 if (!err && sync && oper) {
738 dcbcfg->app[i].priority =
739 (app_prio & I40E_AQC_CEE_APP_ISCSI_MASK) >>
740 I40E_AQC_CEE_APP_ISCSI_SHIFT;
741 dcbcfg->app[i].selector = I40E_APP_SEL_TCPIP;
742 dcbcfg->app[i].protocolid = I40E_APP_PROTOID_ISCSI;
746 status = (tlv_status & I40E_AQC_CEE_FIP_STATUS_MASK) >>
747 I40E_AQC_CEE_FIP_STATUS_SHIFT;
748 err = (status & I40E_TLV_STATUS_ERR) ? 1 : 0;
749 sync = (status & I40E_TLV_STATUS_SYNC) ? 1 : 0;
750 oper = (status & I40E_TLV_STATUS_OPER) ? 1 : 0;
751 /* Add FIP APP if Error is False and Oper/Sync is True */
752 if (!err && sync && oper) {
754 dcbcfg->app[i].priority =
755 (app_prio & I40E_AQC_CEE_APP_FIP_MASK) >>
756 I40E_AQC_CEE_APP_FIP_SHIFT;
757 dcbcfg->app[i].selector = I40E_APP_SEL_ETHTYPE;
758 dcbcfg->app[i].protocolid = I40E_APP_PROTOID_FIP;
765 * i40e_get_ieee_dcb_config
766 * @hw: pointer to the hw struct
768 * Get IEEE mode DCB configuration from the Firmware
770 STATIC enum i40e_status_code i40e_get_ieee_dcb_config(struct i40e_hw *hw)
772 enum i40e_status_code ret = I40E_SUCCESS;
775 hw->local_dcbx_config.dcbx_mode = I40E_DCBX_MODE_IEEE;
776 /* Get Local DCB Config */
777 ret = i40e_aq_get_dcb_config(hw, I40E_AQ_LLDP_MIB_LOCAL, 0,
778 &hw->local_dcbx_config);
782 /* Get Remote DCB Config */
783 ret = i40e_aq_get_dcb_config(hw, I40E_AQ_LLDP_MIB_REMOTE,
784 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
785 &hw->remote_dcbx_config);
786 /* Don't treat ENOENT as an error for Remote MIBs */
787 if (hw->aq.asq_last_status == I40E_AQ_RC_ENOENT)
795 * i40e_get_dcb_config
796 * @hw: pointer to the hw struct
798 * Get DCB configuration from the Firmware
800 enum i40e_status_code i40e_get_dcb_config(struct i40e_hw *hw)
802 enum i40e_status_code ret = I40E_SUCCESS;
803 struct i40e_aqc_get_cee_dcb_cfg_resp cee_cfg;
804 struct i40e_aqc_get_cee_dcb_cfg_v1_resp cee_v1_cfg;
806 /* If Firmware version < v4.33 on X710/XL710, IEEE only */
807 if ((hw->mac.type == I40E_MAC_XL710) &&
808 (((hw->aq.fw_maj_ver == 4) && (hw->aq.fw_min_ver < 33)) ||
809 (hw->aq.fw_maj_ver < 4)))
810 return i40e_get_ieee_dcb_config(hw);
812 /* If Firmware version == v4.33 on X710/XL710, use old CEE struct */
813 if ((hw->mac.type == I40E_MAC_XL710) &&
814 ((hw->aq.fw_maj_ver == 4) && (hw->aq.fw_min_ver == 33))) {
815 ret = i40e_aq_get_cee_dcb_config(hw, &cee_v1_cfg,
816 sizeof(cee_v1_cfg), NULL);
817 if (ret == I40E_SUCCESS) {
819 hw->local_dcbx_config.dcbx_mode = I40E_DCBX_MODE_CEE;
820 hw->local_dcbx_config.tlv_status =
821 LE16_TO_CPU(cee_v1_cfg.tlv_status);
822 i40e_cee_to_dcb_v1_config(&cee_v1_cfg,
823 &hw->local_dcbx_config);
826 ret = i40e_aq_get_cee_dcb_config(hw, &cee_cfg,
827 sizeof(cee_cfg), NULL);
828 if (ret == I40E_SUCCESS) {
830 hw->local_dcbx_config.dcbx_mode = I40E_DCBX_MODE_CEE;
831 hw->local_dcbx_config.tlv_status =
832 LE32_TO_CPU(cee_cfg.tlv_status);
833 i40e_cee_to_dcb_config(&cee_cfg,
834 &hw->local_dcbx_config);
838 /* CEE mode not enabled try querying IEEE data */
839 if (hw->aq.asq_last_status == I40E_AQ_RC_ENOENT)
840 return i40e_get_ieee_dcb_config(hw);
842 if (ret != I40E_SUCCESS)
845 /* Get CEE DCB Desired Config */
846 ret = i40e_aq_get_dcb_config(hw, I40E_AQ_LLDP_MIB_LOCAL, 0,
847 &hw->desired_dcbx_config);
851 /* Get Remote DCB Config */
852 ret = i40e_aq_get_dcb_config(hw, I40E_AQ_LLDP_MIB_REMOTE,
853 I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
854 &hw->remote_dcbx_config);
855 /* Don't treat ENOENT as an error for Remote MIBs */
856 if (hw->aq.asq_last_status == I40E_AQ_RC_ENOENT)
865 * @hw: pointer to the hw struct
866 * @enable_mib_change: enable mib change event
868 * Update DCB configuration from the Firmware
870 enum i40e_status_code i40e_init_dcb(struct i40e_hw *hw, bool enable_mib_change)
872 enum i40e_status_code ret = I40E_SUCCESS;
873 struct i40e_lldp_variables lldp_cfg;
876 if (!hw->func_caps.dcb)
877 return I40E_NOT_SUPPORTED;
879 /* Read LLDP NVM area */
880 ret = i40e_read_lldp_cfg(hw, &lldp_cfg);
882 return I40E_ERR_NOT_READY;
884 /* Get the LLDP AdminStatus for the current port */
885 adminstatus = lldp_cfg.adminstatus >> (hw->port * 4);
888 /* LLDP agent disabled */
890 hw->dcbx_status = I40E_DCBX_STATUS_DISABLED;
891 return I40E_ERR_NOT_READY;
894 /* Get DCBX status */
895 ret = i40e_get_dcbx_status(hw, &hw->dcbx_status);
899 /* Check the DCBX Status */
900 if (hw->dcbx_status == I40E_DCBX_STATUS_DONE ||
901 hw->dcbx_status == I40E_DCBX_STATUS_IN_PROGRESS) {
902 /* Get current DCBX configuration */
903 ret = i40e_get_dcb_config(hw);
906 } else if (hw->dcbx_status == I40E_DCBX_STATUS_DISABLED) {
907 return I40E_ERR_NOT_READY;
910 /* Configure the LLDP MIB change event */
911 if (enable_mib_change)
912 ret = i40e_aq_cfg_lldp_mib_change_event(hw, true, NULL);
918 * i40e_add_ieee_ets_tlv - Prepare ETS TLV in IEEE format
919 * @tlv: Fill the ETS config data in IEEE format
920 * @dcbcfg: Local store which holds the DCB Config
922 * Prepare IEEE 802.1Qaz ETS CFG TLV
924 static void i40e_add_ieee_ets_tlv(struct i40e_lldp_org_tlv *tlv,
925 struct i40e_dcbx_config *dcbcfg)
927 u8 priority0, priority1, maxtcwilling = 0;
928 struct i40e_dcb_ets_config *etscfg;
929 u16 offset = 0, typelength, i;
930 u8 *buf = tlv->tlvinfo;
933 typelength = (u16)((I40E_TLV_TYPE_ORG << I40E_LLDP_TLV_TYPE_SHIFT) |
934 I40E_IEEE_ETS_TLV_LENGTH);
935 tlv->typelength = I40E_HTONS(typelength);
937 ouisubtype = (u32)((I40E_IEEE_8021QAZ_OUI << I40E_LLDP_TLV_OUI_SHIFT) |
938 I40E_IEEE_SUBTYPE_ETS_CFG);
939 tlv->ouisubtype = I40E_HTONL(ouisubtype);
941 /* First Octet post subtype
942 * --------------------------
943 * |will-|CBS | Re- | Max |
944 * |ing | |served| TCs |
945 * --------------------------
946 * |1bit | 1bit|3 bits|3bits|
948 etscfg = &dcbcfg->etscfg;
950 maxtcwilling = BIT(I40E_IEEE_ETS_WILLING_SHIFT);
951 maxtcwilling |= etscfg->maxtcs & I40E_IEEE_ETS_MAXTC_MASK;
952 buf[offset] = maxtcwilling;
954 /* Move offset to Priority Assignment Table */
957 /* Priority Assignment Table (4 octets)
958 * Octets:| 1 | 2 | 3 | 4 |
959 * -----------------------------------------
960 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
961 * -----------------------------------------
962 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
963 * -----------------------------------------
965 for (i = 0; i < 4; i++) {
966 priority0 = etscfg->prioritytable[i * 2] & 0xF;
967 priority1 = etscfg->prioritytable[i * 2 + 1] & 0xF;
968 buf[offset] = (priority0 << I40E_IEEE_ETS_PRIO_1_SHIFT) |
973 /* TC Bandwidth Table (8 octets)
974 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
975 * ---------------------------------
976 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
977 * ---------------------------------
979 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
980 buf[offset++] = etscfg->tcbwtable[i];
982 /* TSA Assignment Table (8 octets)
983 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
984 * ---------------------------------
985 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
986 * ---------------------------------
988 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
989 buf[offset++] = etscfg->tsatable[i];
993 * i40e_add_ieee_etsrec_tlv - Prepare ETS Recommended TLV in IEEE format
994 * @tlv: Fill ETS Recommended TLV in IEEE format
995 * @dcbcfg: Local store which holds the DCB Config
997 * Prepare IEEE 802.1Qaz ETS REC TLV
999 static void i40e_add_ieee_etsrec_tlv(struct i40e_lldp_org_tlv *tlv,
1000 struct i40e_dcbx_config *dcbcfg)
1002 struct i40e_dcb_ets_config *etsrec;
1003 u16 offset = 0, typelength, i;
1004 u8 priority0, priority1;
1005 u8 *buf = tlv->tlvinfo;
1008 typelength = (u16)((I40E_TLV_TYPE_ORG << I40E_LLDP_TLV_TYPE_SHIFT) |
1009 I40E_IEEE_ETS_TLV_LENGTH);
1010 tlv->typelength = I40E_HTONS(typelength);
1012 ouisubtype = (u32)((I40E_IEEE_8021QAZ_OUI << I40E_LLDP_TLV_OUI_SHIFT) |
1013 I40E_IEEE_SUBTYPE_ETS_REC);
1014 tlv->ouisubtype = I40E_HTONL(ouisubtype);
1016 etsrec = &dcbcfg->etsrec;
1017 /* First Octet is reserved */
1018 /* Move offset to Priority Assignment Table */
1021 /* Priority Assignment Table (4 octets)
1022 * Octets:| 1 | 2 | 3 | 4 |
1023 * -----------------------------------------
1024 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7|
1025 * -----------------------------------------
1026 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0|
1027 * -----------------------------------------
1029 for (i = 0; i < 4; i++) {
1030 priority0 = etsrec->prioritytable[i * 2] & 0xF;
1031 priority1 = etsrec->prioritytable[i * 2 + 1] & 0xF;
1032 buf[offset] = (priority0 << I40E_IEEE_ETS_PRIO_1_SHIFT) |
1037 /* TC Bandwidth Table (8 octets)
1038 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
1039 * ---------------------------------
1040 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
1041 * ---------------------------------
1043 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
1044 buf[offset++] = etsrec->tcbwtable[i];
1046 /* TSA Assignment Table (8 octets)
1047 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
1048 * ---------------------------------
1049 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7|
1050 * ---------------------------------
1052 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
1053 buf[offset++] = etsrec->tsatable[i];
1057 * i40e_add_ieee_pfc_tlv - Prepare PFC TLV in IEEE format
1058 * @tlv: Fill PFC TLV in IEEE format
1059 * @dcbcfg: Local store to get PFC CFG data
1061 * Prepare IEEE 802.1Qaz PFC CFG TLV
1063 static void i40e_add_ieee_pfc_tlv(struct i40e_lldp_org_tlv *tlv,
1064 struct i40e_dcbx_config *dcbcfg)
1066 u8 *buf = tlv->tlvinfo;
1070 typelength = (u16)((I40E_TLV_TYPE_ORG << I40E_LLDP_TLV_TYPE_SHIFT) |
1071 I40E_IEEE_PFC_TLV_LENGTH);
1072 tlv->typelength = I40E_HTONS(typelength);
1074 ouisubtype = (u32)((I40E_IEEE_8021QAZ_OUI << I40E_LLDP_TLV_OUI_SHIFT) |
1075 I40E_IEEE_SUBTYPE_PFC_CFG);
1076 tlv->ouisubtype = I40E_HTONL(ouisubtype);
1078 /* ----------------------------------------
1079 * |will-|MBC | Re- | PFC | PFC Enable |
1080 * |ing | |served| cap | |
1081 * -----------------------------------------
1082 * |1bit | 1bit|2 bits|4bits| 1 octet |
1084 if (dcbcfg->pfc.willing)
1085 buf[0] = BIT(I40E_IEEE_PFC_WILLING_SHIFT);
1087 if (dcbcfg->pfc.mbc)
1088 buf[0] |= BIT(I40E_IEEE_PFC_MBC_SHIFT);
1090 buf[0] |= dcbcfg->pfc.pfccap & 0xF;
1091 buf[1] = dcbcfg->pfc.pfcenable;
1095 * i40e_add_ieee_app_pri_tlv - Prepare APP TLV in IEEE format
1096 * @tlv: Fill APP TLV in IEEE format
1097 * @dcbcfg: Local store to get APP CFG data
1099 * Prepare IEEE 802.1Qaz APP CFG TLV
1101 static void i40e_add_ieee_app_pri_tlv(struct i40e_lldp_org_tlv *tlv,
1102 struct i40e_dcbx_config *dcbcfg)
1104 u16 typelength, length, offset = 0;
1105 u8 priority, selector, i = 0;
1106 u8 *buf = tlv->tlvinfo;
1109 /* No APP TLVs then just return */
1110 if (dcbcfg->numapps == 0)
1112 ouisubtype = (u32)((I40E_IEEE_8021QAZ_OUI << I40E_LLDP_TLV_OUI_SHIFT) |
1113 I40E_IEEE_SUBTYPE_APP_PRI);
1114 tlv->ouisubtype = I40E_HTONL(ouisubtype);
1116 /* Move offset to App Priority Table */
1118 /* Application Priority Table (3 octets)
1119 * Octets:| 1 | 2 | 3 |
1120 * -----------------------------------------
1121 * |Priority|Rsrvd| Sel | Protocol ID |
1122 * -----------------------------------------
1123 * Bits:|23 21|20 19|18 16|15 0|
1124 * -----------------------------------------
1126 while (i < dcbcfg->numapps) {
1127 priority = dcbcfg->app[i].priority & 0x7;
1128 selector = dcbcfg->app[i].selector & 0x7;
1129 buf[offset] = (priority << I40E_IEEE_APP_PRIO_SHIFT) | selector;
1130 buf[offset + 1] = (dcbcfg->app[i].protocolid >> 0x8) & 0xFF;
1131 buf[offset + 2] = dcbcfg->app[i].protocolid & 0xFF;
1132 /* Move to next app */
1135 if (i >= I40E_DCBX_MAX_APPS)
1138 /* length includes size of ouisubtype + 1 reserved + 3*numapps */
1139 length = sizeof(tlv->ouisubtype) + 1 + (i*3);
1140 typelength = (u16)((I40E_TLV_TYPE_ORG << I40E_LLDP_TLV_TYPE_SHIFT) |
1142 tlv->typelength = I40E_HTONS(typelength);
1146 * i40e_add_dcb_tlv - Add all IEEE TLVs
1147 * @tlv: pointer to org tlv
1149 * add tlv information
1151 static void i40e_add_dcb_tlv(struct i40e_lldp_org_tlv *tlv,
1152 struct i40e_dcbx_config *dcbcfg,
1156 case I40E_IEEE_TLV_ID_ETS_CFG:
1157 i40e_add_ieee_ets_tlv(tlv, dcbcfg);
1159 case I40E_IEEE_TLV_ID_ETS_REC:
1160 i40e_add_ieee_etsrec_tlv(tlv, dcbcfg);
1162 case I40E_IEEE_TLV_ID_PFC_CFG:
1163 i40e_add_ieee_pfc_tlv(tlv, dcbcfg);
1165 case I40E_IEEE_TLV_ID_APP_PRI:
1166 i40e_add_ieee_app_pri_tlv(tlv, dcbcfg);
1174 * i40e_set_dcb_config - Set the local LLDP MIB to FW
1175 * @hw: pointer to the hw struct
1177 * Set DCB configuration to the Firmware
1179 enum i40e_status_code i40e_set_dcb_config(struct i40e_hw *hw)
1181 enum i40e_status_code ret = I40E_SUCCESS;
1182 struct i40e_dcbx_config *dcbcfg;
1183 struct i40e_virt_mem mem;
1184 u8 mib_type, *lldpmib;
1187 /* update the hw local config */
1188 dcbcfg = &hw->local_dcbx_config;
1189 /* Allocate the LLDPDU */
1190 ret = i40e_allocate_virt_mem(hw, &mem, I40E_LLDPDU_SIZE);
1194 mib_type = SET_LOCAL_MIB_AC_TYPE_LOCAL_MIB;
1195 if (dcbcfg->app_mode == I40E_DCBX_APPS_NON_WILLING) {
1196 mib_type |= SET_LOCAL_MIB_AC_TYPE_NON_WILLING_APPS <<
1197 SET_LOCAL_MIB_AC_TYPE_NON_WILLING_APPS_SHIFT;
1199 lldpmib = (u8 *)mem.va;
1200 ret = i40e_dcb_config_to_lldp(lldpmib, &miblen, dcbcfg);
1201 ret = i40e_aq_set_lldp_mib(hw, mib_type, (void *)lldpmib, miblen, NULL);
1203 i40e_free_virt_mem(hw, &mem);
1208 * i40e_dcb_config_to_lldp - Convert Dcbconfig to MIB format
1209 * @hw: pointer to the hw struct
1210 * @dcbcfg: store for LLDPDU data
1212 * send DCB configuration to FW
1214 enum i40e_status_code i40e_dcb_config_to_lldp(u8 *lldpmib, u16 *miblen,
1215 struct i40e_dcbx_config *dcbcfg)
1217 u16 length, offset = 0, tlvid = I40E_TLV_ID_START;
1218 enum i40e_status_code ret = I40E_SUCCESS;
1219 struct i40e_lldp_org_tlv *tlv;
1222 tlv = (struct i40e_lldp_org_tlv *)lldpmib;
1224 i40e_add_dcb_tlv(tlv, dcbcfg, tlvid++);
1225 typelength = I40E_NTOHS(tlv->typelength);
1226 length = (u16)((typelength & I40E_LLDP_TLV_LEN_MASK) >>
1227 I40E_LLDP_TLV_LEN_SHIFT);
1229 offset += length + 2;
1230 /* END TLV or beyond LLDPDU size */
1231 if ((tlvid >= I40E_TLV_ID_END_OF_LLDPPDU) ||
1232 (offset > I40E_LLDPDU_SIZE))
1234 /* Move to next TLV */
1236 tlv = (struct i40e_lldp_org_tlv *)((char *)tlv +
1237 sizeof(tlv->typelength) + length);
1245 * _i40e_read_lldp_cfg - generic read of LLDP Configuration data from NVM
1246 * @hw: pointer to the HW structure
1247 * @lldp_cfg: pointer to hold lldp configuration variables
1248 * @module: address of the module pointer
1249 * @word_offset: offset of LLDP configuration
1251 * Reads the LLDP configuration data from NVM using passed addresses
1253 static enum i40e_status_code _i40e_read_lldp_cfg(struct i40e_hw *hw,
1254 struct i40e_lldp_variables *lldp_cfg,
1255 u8 module, u32 word_offset)
1257 u32 address, offset = (2 * word_offset);
1258 enum i40e_status_code ret;
1262 ret = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1263 if (ret != I40E_SUCCESS)
1266 ret = i40e_aq_read_nvm(hw, 0x0, module * 2, sizeof(raw_mem), &raw_mem,
1268 i40e_release_nvm(hw);
1269 if (ret != I40E_SUCCESS)
1272 mem = LE16_TO_CPU(raw_mem);
1273 /* Check if this pointer needs to be read in word size or 4K sector
1276 if (mem & I40E_PTR_TYPE)
1277 address = (0x7FFF & mem) * 4096;
1279 address = (0x7FFF & mem) * 2;
1281 ret = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1282 if (ret != I40E_SUCCESS)
1285 ret = i40e_aq_read_nvm(hw, module, offset, sizeof(raw_mem), &raw_mem,
1287 i40e_release_nvm(hw);
1288 if (ret != I40E_SUCCESS)
1291 mem = LE16_TO_CPU(raw_mem);
1292 offset = mem + word_offset;
1295 ret = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1296 if (ret != I40E_SUCCESS)
1299 ret = i40e_aq_read_nvm(hw, 0, address + offset,
1300 sizeof(struct i40e_lldp_variables), lldp_cfg,
1302 i40e_release_nvm(hw);
1309 * i40e_read_lldp_cfg - read LLDP Configuration data from NVM
1310 * @hw: pointer to the HW structure
1311 * @lldp_cfg: pointer to hold lldp configuration variables
1313 * Reads the LLDP configuration data from NVM
1315 enum i40e_status_code i40e_read_lldp_cfg(struct i40e_hw *hw,
1316 struct i40e_lldp_variables *lldp_cfg)
1318 enum i40e_status_code ret = I40E_SUCCESS;
1322 return I40E_ERR_PARAM;
1324 ret = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1325 if (ret != I40E_SUCCESS)
1328 ret = i40e_aq_read_nvm(hw, I40E_SR_NVM_CONTROL_WORD, 0, sizeof(mem),
1330 i40e_release_nvm(hw);
1331 if (ret != I40E_SUCCESS)
1334 /* Read a bit that holds information whether we are running flat or
1335 * structured NVM image. Flat image has LLDP configuration in shadow
1336 * ram, so there is a need to pass different addresses for both cases.
1338 if (mem & I40E_SR_NVM_MAP_STRUCTURE_TYPE) {
1340 ret = _i40e_read_lldp_cfg(hw, lldp_cfg, I40E_SR_EMP_MODULE_PTR,
1341 I40E_SR_LLDP_CFG_PTR);
1343 /* Good old structured NVM image */
1344 ret = _i40e_read_lldp_cfg(hw, lldp_cfg, I40E_EMP_MODULE_PTR,
1345 I40E_NVM_LLDP_CFG_PTR);