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