1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2001-2021 Intel Corporation 3 */ 4 5 #include "ice_common.h" 6 #include "ice_sched.h" 7 #include "ice_dcb.h" 8 9 /** 10 * ice_aq_get_lldp_mib 11 * @hw: pointer to the HW struct 12 * @bridge_type: type of bridge requested 13 * @mib_type: Local, Remote or both Local and Remote MIBs 14 * @buf: pointer to the caller-supplied buffer to store the MIB block 15 * @buf_size: size of the buffer (in bytes) 16 * @local_len: length of the returned Local LLDP MIB 17 * @remote_len: length of the returned Remote LLDP MIB 18 * @cd: pointer to command details structure or NULL 19 * 20 * Requests the complete LLDP MIB (entire packet). (0x0A00) 21 */ 22 enum ice_status 23 ice_aq_get_lldp_mib(struct ice_hw *hw, u8 bridge_type, u8 mib_type, void *buf, 24 u16 buf_size, u16 *local_len, u16 *remote_len, 25 struct ice_sq_cd *cd) 26 { 27 struct ice_aqc_lldp_get_mib *cmd; 28 struct ice_aq_desc desc; 29 enum ice_status status; 30 31 cmd = &desc.params.lldp_get_mib; 32 33 if (buf_size == 0 || !buf) 34 return ICE_ERR_PARAM; 35 36 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_get_mib); 37 38 cmd->type = mib_type & ICE_AQ_LLDP_MIB_TYPE_M; 39 cmd->type |= (bridge_type << ICE_AQ_LLDP_BRID_TYPE_S) & 40 ICE_AQ_LLDP_BRID_TYPE_M; 41 42 desc.datalen = CPU_TO_LE16(buf_size); 43 44 status = ice_aq_send_cmd(hw, &desc, buf, buf_size, cd); 45 if (!status) { 46 if (local_len) 47 *local_len = LE16_TO_CPU(cmd->local_len); 48 if (remote_len) 49 *remote_len = LE16_TO_CPU(cmd->remote_len); 50 } 51 52 return status; 53 } 54 55 /** 56 * ice_aq_cfg_lldp_mib_change 57 * @hw: pointer to the HW struct 58 * @ena_update: Enable or Disable event posting 59 * @cd: pointer to command details structure or NULL 60 * 61 * Enable or Disable posting of an event on ARQ when LLDP MIB 62 * associated with the interface changes (0x0A01) 63 */ 64 enum ice_status 65 ice_aq_cfg_lldp_mib_change(struct ice_hw *hw, bool ena_update, 66 struct ice_sq_cd *cd) 67 { 68 struct ice_aqc_lldp_set_mib_change *cmd; 69 struct ice_aq_desc desc; 70 71 cmd = &desc.params.lldp_set_event; 72 73 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_set_mib_change); 74 75 if (!ena_update) 76 cmd->command |= ICE_AQ_LLDP_MIB_UPDATE_DIS; 77 78 return ice_aq_send_cmd(hw, &desc, NULL, 0, cd); 79 } 80 81 /** 82 * ice_aq_stop_lldp 83 * @hw: pointer to the HW struct 84 * @shutdown_lldp_agent: True if LLDP Agent needs to be Shutdown 85 * False if LLDP Agent needs to be Stopped 86 * @persist: True if Stop/Shutdown of LLDP Agent needs to be persistent across 87 * reboots 88 * @cd: pointer to command details structure or NULL 89 * 90 * Stop or Shutdown the embedded LLDP Agent (0x0A05) 91 */ 92 enum ice_status 93 ice_aq_stop_lldp(struct ice_hw *hw, bool shutdown_lldp_agent, bool persist, 94 struct ice_sq_cd *cd) 95 { 96 struct ice_aqc_lldp_stop *cmd; 97 struct ice_aq_desc desc; 98 99 cmd = &desc.params.lldp_stop; 100 101 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_stop); 102 103 if (shutdown_lldp_agent) 104 cmd->command |= ICE_AQ_LLDP_AGENT_SHUTDOWN; 105 106 if (persist) 107 cmd->command |= ICE_AQ_LLDP_AGENT_PERSIST_DIS; 108 109 return ice_aq_send_cmd(hw, &desc, NULL, 0, cd); 110 } 111 112 /** 113 * ice_aq_start_lldp 114 * @hw: pointer to the HW struct 115 * @persist: True if Start of LLDP Agent needs to be persistent across reboots 116 * @cd: pointer to command details structure or NULL 117 * 118 * Start the embedded LLDP Agent on all ports. (0x0A06) 119 */ 120 enum ice_status 121 ice_aq_start_lldp(struct ice_hw *hw, bool persist, struct ice_sq_cd *cd) 122 { 123 struct ice_aqc_lldp_start *cmd; 124 struct ice_aq_desc desc; 125 126 cmd = &desc.params.lldp_start; 127 128 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_lldp_start); 129 130 cmd->command = ICE_AQ_LLDP_AGENT_START; 131 132 if (persist) 133 cmd->command |= ICE_AQ_LLDP_AGENT_PERSIST_ENA; 134 135 return ice_aq_send_cmd(hw, &desc, NULL, 0, cd); 136 } 137 138 /** 139 * ice_get_dcbx_status 140 * @hw: pointer to the HW struct 141 * 142 * Get the DCBX status from the Firmware 143 */ 144 u8 ice_get_dcbx_status(struct ice_hw *hw) 145 { 146 u32 reg; 147 148 reg = rd32(hw, PRTDCB_GENS); 149 return (u8)((reg & PRTDCB_GENS_DCBX_STATUS_M) >> 150 PRTDCB_GENS_DCBX_STATUS_S); 151 } 152 153 /** 154 * ice_parse_ieee_ets_common_tlv 155 * @buf: Data buffer to be parsed for ETS CFG/REC data 156 * @ets_cfg: Container to store parsed data 157 * 158 * Parses the common data of IEEE 802.1Qaz ETS CFG/REC TLV 159 */ 160 static void 161 ice_parse_ieee_ets_common_tlv(u8 *buf, struct ice_dcb_ets_cfg *ets_cfg) 162 { 163 u8 offset = 0; 164 int i; 165 166 /* Priority Assignment Table (4 octets) 167 * Octets:| 1 | 2 | 3 | 4 | 168 * ----------------------------------------- 169 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7| 170 * ----------------------------------------- 171 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0| 172 * ----------------------------------------- 173 */ 174 for (i = 0; i < 4; i++) { 175 ets_cfg->prio_table[i * 2] = 176 ((buf[offset] & ICE_IEEE_ETS_PRIO_1_M) >> 177 ICE_IEEE_ETS_PRIO_1_S); 178 ets_cfg->prio_table[i * 2 + 1] = 179 ((buf[offset] & ICE_IEEE_ETS_PRIO_0_M) >> 180 ICE_IEEE_ETS_PRIO_0_S); 181 offset++; 182 } 183 184 /* TC Bandwidth Table (8 octets) 185 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 186 * --------------------------------- 187 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7| 188 * --------------------------------- 189 * 190 * TSA Assignment Table (8 octets) 191 * Octets:| 9 | 10| 11| 12| 13| 14| 15| 16| 192 * --------------------------------- 193 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7| 194 * --------------------------------- 195 */ 196 ice_for_each_traffic_class(i) { 197 ets_cfg->tcbwtable[i] = buf[offset]; 198 ets_cfg->tsatable[i] = buf[ICE_MAX_TRAFFIC_CLASS + offset++]; 199 } 200 } 201 202 /** 203 * ice_parse_ieee_etscfg_tlv 204 * @tlv: IEEE 802.1Qaz ETS CFG TLV 205 * @dcbcfg: Local store to update ETS CFG data 206 * 207 * Parses IEEE 802.1Qaz ETS CFG TLV 208 */ 209 static void 210 ice_parse_ieee_etscfg_tlv(struct ice_lldp_org_tlv *tlv, 211 struct ice_dcbx_cfg *dcbcfg) 212 { 213 struct ice_dcb_ets_cfg *etscfg; 214 u8 *buf = tlv->tlvinfo; 215 216 /* First Octet post subtype 217 * -------------------------- 218 * |will-|CBS | Re- | Max | 219 * |ing | |served| TCs | 220 * -------------------------- 221 * |1bit | 1bit|3 bits|3bits| 222 */ 223 etscfg = &dcbcfg->etscfg; 224 etscfg->willing = ((buf[0] & ICE_IEEE_ETS_WILLING_M) >> 225 ICE_IEEE_ETS_WILLING_S); 226 etscfg->cbs = ((buf[0] & ICE_IEEE_ETS_CBS_M) >> ICE_IEEE_ETS_CBS_S); 227 etscfg->maxtcs = ((buf[0] & ICE_IEEE_ETS_MAXTC_M) >> 228 ICE_IEEE_ETS_MAXTC_S); 229 230 /* Begin parsing at Priority Assignment Table (offset 1 in buf) */ 231 ice_parse_ieee_ets_common_tlv(&buf[1], etscfg); 232 } 233 234 /** 235 * ice_parse_ieee_etsrec_tlv 236 * @tlv: IEEE 802.1Qaz ETS REC TLV 237 * @dcbcfg: Local store to update ETS REC data 238 * 239 * Parses IEEE 802.1Qaz ETS REC TLV 240 */ 241 static void 242 ice_parse_ieee_etsrec_tlv(struct ice_lldp_org_tlv *tlv, 243 struct ice_dcbx_cfg *dcbcfg) 244 { 245 u8 *buf = tlv->tlvinfo; 246 247 /* Begin parsing at Priority Assignment Table (offset 1 in buf) */ 248 ice_parse_ieee_ets_common_tlv(&buf[1], &dcbcfg->etsrec); 249 } 250 251 /** 252 * ice_parse_ieee_pfccfg_tlv 253 * @tlv: IEEE 802.1Qaz PFC CFG TLV 254 * @dcbcfg: Local store to update PFC CFG data 255 * 256 * Parses IEEE 802.1Qaz PFC CFG TLV 257 */ 258 static void 259 ice_parse_ieee_pfccfg_tlv(struct ice_lldp_org_tlv *tlv, 260 struct ice_dcbx_cfg *dcbcfg) 261 { 262 u8 *buf = tlv->tlvinfo; 263 264 /* ---------------------------------------- 265 * |will-|MBC | Re- | PFC | PFC Enable | 266 * |ing | |served| cap | | 267 * ----------------------------------------- 268 * |1bit | 1bit|2 bits|4bits| 1 octet | 269 */ 270 dcbcfg->pfc.willing = ((buf[0] & ICE_IEEE_PFC_WILLING_M) >> 271 ICE_IEEE_PFC_WILLING_S); 272 dcbcfg->pfc.mbc = ((buf[0] & ICE_IEEE_PFC_MBC_M) >> ICE_IEEE_PFC_MBC_S); 273 dcbcfg->pfc.pfccap = ((buf[0] & ICE_IEEE_PFC_CAP_M) >> 274 ICE_IEEE_PFC_CAP_S); 275 dcbcfg->pfc.pfcena = buf[1]; 276 } 277 278 /** 279 * ice_parse_ieee_app_tlv 280 * @tlv: IEEE 802.1Qaz APP TLV 281 * @dcbcfg: Local store to update APP PRIO data 282 * 283 * Parses IEEE 802.1Qaz APP PRIO TLV 284 */ 285 static void 286 ice_parse_ieee_app_tlv(struct ice_lldp_org_tlv *tlv, 287 struct ice_dcbx_cfg *dcbcfg) 288 { 289 u16 offset = 0; 290 u16 typelen; 291 int i = 0; 292 u16 len; 293 u8 *buf; 294 295 typelen = NTOHS(tlv->typelen); 296 len = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S); 297 buf = tlv->tlvinfo; 298 299 /* Removing sizeof(ouisubtype) and reserved byte from len. 300 * Remaining len div 3 is number of APP TLVs. 301 */ 302 len -= (sizeof(tlv->ouisubtype) + 1); 303 304 /* Move offset to App Priority Table */ 305 offset++; 306 307 /* Application Priority Table (3 octets) 308 * Octets:| 1 | 2 | 3 | 309 * ----------------------------------------- 310 * |Priority|Rsrvd| Sel | Protocol ID | 311 * ----------------------------------------- 312 * Bits:|23 21|20 19|18 16|15 0| 313 * ----------------------------------------- 314 */ 315 while (offset < len) { 316 dcbcfg->app[i].priority = ((buf[offset] & 317 ICE_IEEE_APP_PRIO_M) >> 318 ICE_IEEE_APP_PRIO_S); 319 dcbcfg->app[i].selector = ((buf[offset] & 320 ICE_IEEE_APP_SEL_M) >> 321 ICE_IEEE_APP_SEL_S); 322 dcbcfg->app[i].prot_id = (buf[offset + 1] << 0x8) | 323 buf[offset + 2]; 324 /* Move to next app */ 325 offset += 3; 326 i++; 327 if (i >= ICE_DCBX_MAX_APPS) 328 break; 329 } 330 331 dcbcfg->numapps = i; 332 } 333 334 /** 335 * ice_parse_ieee_tlv 336 * @tlv: IEEE 802.1Qaz TLV 337 * @dcbcfg: Local store to update ETS REC data 338 * 339 * Get the TLV subtype and send it to parsing function 340 * based on the subtype value 341 */ 342 static void 343 ice_parse_ieee_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) 344 { 345 u32 ouisubtype; 346 u8 subtype; 347 348 ouisubtype = NTOHL(tlv->ouisubtype); 349 subtype = (u8)((ouisubtype & ICE_LLDP_TLV_SUBTYPE_M) >> 350 ICE_LLDP_TLV_SUBTYPE_S); 351 switch (subtype) { 352 case ICE_IEEE_SUBTYPE_ETS_CFG: 353 ice_parse_ieee_etscfg_tlv(tlv, dcbcfg); 354 break; 355 case ICE_IEEE_SUBTYPE_ETS_REC: 356 ice_parse_ieee_etsrec_tlv(tlv, dcbcfg); 357 break; 358 case ICE_IEEE_SUBTYPE_PFC_CFG: 359 ice_parse_ieee_pfccfg_tlv(tlv, dcbcfg); 360 break; 361 case ICE_IEEE_SUBTYPE_APP_PRI: 362 ice_parse_ieee_app_tlv(tlv, dcbcfg); 363 break; 364 default: 365 break; 366 } 367 } 368 369 /** 370 * ice_parse_cee_pgcfg_tlv 371 * @tlv: CEE DCBX PG CFG TLV 372 * @dcbcfg: Local store to update ETS CFG data 373 * 374 * Parses CEE DCBX PG CFG TLV 375 */ 376 static void 377 ice_parse_cee_pgcfg_tlv(struct ice_cee_feat_tlv *tlv, 378 struct ice_dcbx_cfg *dcbcfg) 379 { 380 struct ice_dcb_ets_cfg *etscfg; 381 u8 *buf = tlv->tlvinfo; 382 u16 offset = 0; 383 int i; 384 385 etscfg = &dcbcfg->etscfg; 386 387 if (tlv->en_will_err & ICE_CEE_FEAT_TLV_WILLING_M) 388 etscfg->willing = 1; 389 390 etscfg->cbs = 0; 391 /* Priority Group Table (4 octets) 392 * Octets:| 1 | 2 | 3 | 4 | 393 * ----------------------------------------- 394 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7| 395 * ----------------------------------------- 396 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0| 397 * ----------------------------------------- 398 */ 399 for (i = 0; i < 4; i++) { 400 etscfg->prio_table[i * 2] = 401 ((buf[offset] & ICE_CEE_PGID_PRIO_1_M) >> 402 ICE_CEE_PGID_PRIO_1_S); 403 etscfg->prio_table[i * 2 + 1] = 404 ((buf[offset] & ICE_CEE_PGID_PRIO_0_M) >> 405 ICE_CEE_PGID_PRIO_0_S); 406 offset++; 407 } 408 409 /* PG Percentage Table (8 octets) 410 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 411 * --------------------------------- 412 * |pg0|pg1|pg2|pg3|pg4|pg5|pg6|pg7| 413 * --------------------------------- 414 */ 415 ice_for_each_traffic_class(i) { 416 etscfg->tcbwtable[i] = buf[offset++]; 417 418 if (etscfg->prio_table[i] == ICE_CEE_PGID_STRICT) 419 dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_STRICT; 420 else 421 dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_ETS; 422 } 423 424 /* Number of TCs supported (1 octet) */ 425 etscfg->maxtcs = buf[offset]; 426 } 427 428 /** 429 * ice_parse_cee_pfccfg_tlv 430 * @tlv: CEE DCBX PFC CFG TLV 431 * @dcbcfg: Local store to update PFC CFG data 432 * 433 * Parses CEE DCBX PFC CFG TLV 434 */ 435 static void 436 ice_parse_cee_pfccfg_tlv(struct ice_cee_feat_tlv *tlv, 437 struct ice_dcbx_cfg *dcbcfg) 438 { 439 u8 *buf = tlv->tlvinfo; 440 441 if (tlv->en_will_err & ICE_CEE_FEAT_TLV_WILLING_M) 442 dcbcfg->pfc.willing = 1; 443 444 /* ------------------------ 445 * | PFC Enable | PFC TCs | 446 * ------------------------ 447 * | 1 octet | 1 octet | 448 */ 449 dcbcfg->pfc.pfcena = buf[0]; 450 dcbcfg->pfc.pfccap = buf[1]; 451 } 452 453 /** 454 * ice_parse_cee_app_tlv 455 * @tlv: CEE DCBX APP TLV 456 * @dcbcfg: Local store to update APP PRIO data 457 * 458 * Parses CEE DCBX APP PRIO TLV 459 */ 460 static void 461 ice_parse_cee_app_tlv(struct ice_cee_feat_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) 462 { 463 u16 len, typelen, offset = 0; 464 struct ice_cee_app_prio *app; 465 u8 i; 466 467 typelen = NTOHS(tlv->hdr.typelen); 468 len = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S); 469 470 dcbcfg->numapps = len / sizeof(*app); 471 if (!dcbcfg->numapps) 472 return; 473 if (dcbcfg->numapps > ICE_DCBX_MAX_APPS) 474 dcbcfg->numapps = ICE_DCBX_MAX_APPS; 475 476 for (i = 0; i < dcbcfg->numapps; i++) { 477 u8 up, selector; 478 479 app = (struct ice_cee_app_prio *)(tlv->tlvinfo + offset); 480 for (up = 0; up < ICE_MAX_USER_PRIORITY; up++) 481 if (app->prio_map & BIT(up)) 482 break; 483 484 dcbcfg->app[i].priority = up; 485 486 /* Get Selector from lower 2 bits, and convert to IEEE */ 487 selector = (app->upper_oui_sel & ICE_CEE_APP_SELECTOR_M); 488 switch (selector) { 489 case ICE_CEE_APP_SEL_ETHTYPE: 490 dcbcfg->app[i].selector = ICE_APP_SEL_ETHTYPE; 491 break; 492 case ICE_CEE_APP_SEL_TCPIP: 493 dcbcfg->app[i].selector = ICE_APP_SEL_TCPIP; 494 break; 495 default: 496 /* Keep selector as it is for unknown types */ 497 dcbcfg->app[i].selector = selector; 498 } 499 500 dcbcfg->app[i].prot_id = NTOHS(app->protocol); 501 /* Move to next app */ 502 offset += sizeof(*app); 503 } 504 } 505 506 /** 507 * ice_parse_cee_tlv 508 * @tlv: CEE DCBX TLV 509 * @dcbcfg: Local store to update DCBX config data 510 * 511 * Get the TLV subtype and send it to parsing function 512 * based on the subtype value 513 */ 514 static void 515 ice_parse_cee_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) 516 { 517 struct ice_cee_feat_tlv *sub_tlv; 518 u8 subtype, feat_tlv_count = 0; 519 u16 len, tlvlen, typelen; 520 u32 ouisubtype; 521 522 ouisubtype = NTOHL(tlv->ouisubtype); 523 subtype = (u8)((ouisubtype & ICE_LLDP_TLV_SUBTYPE_M) >> 524 ICE_LLDP_TLV_SUBTYPE_S); 525 /* Return if not CEE DCBX */ 526 if (subtype != ICE_CEE_DCBX_TYPE) 527 return; 528 529 typelen = NTOHS(tlv->typelen); 530 tlvlen = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S); 531 len = sizeof(tlv->typelen) + sizeof(ouisubtype) + 532 sizeof(struct ice_cee_ctrl_tlv); 533 /* Return if no CEE DCBX Feature TLVs */ 534 if (tlvlen <= len) 535 return; 536 537 sub_tlv = (struct ice_cee_feat_tlv *)((char *)tlv + len); 538 while (feat_tlv_count < ICE_CEE_MAX_FEAT_TYPE) { 539 u16 sublen; 540 541 typelen = NTOHS(sub_tlv->hdr.typelen); 542 sublen = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S); 543 subtype = (u8)((typelen & ICE_LLDP_TLV_TYPE_M) >> 544 ICE_LLDP_TLV_TYPE_S); 545 switch (subtype) { 546 case ICE_CEE_SUBTYPE_PG_CFG: 547 ice_parse_cee_pgcfg_tlv(sub_tlv, dcbcfg); 548 break; 549 case ICE_CEE_SUBTYPE_PFC_CFG: 550 ice_parse_cee_pfccfg_tlv(sub_tlv, dcbcfg); 551 break; 552 case ICE_CEE_SUBTYPE_APP_PRI: 553 ice_parse_cee_app_tlv(sub_tlv, dcbcfg); 554 break; 555 default: 556 return; /* Invalid Sub-type return */ 557 } 558 feat_tlv_count++; 559 /* Move to next sub TLV */ 560 sub_tlv = (struct ice_cee_feat_tlv *) 561 ((char *)sub_tlv + sizeof(sub_tlv->hdr.typelen) + 562 sublen); 563 } 564 } 565 566 /** 567 * ice_parse_org_tlv 568 * @tlv: Organization specific TLV 569 * @dcbcfg: Local store to update ETS REC data 570 * 571 * Currently only IEEE 802.1Qaz TLV is supported, all others 572 * will be returned 573 */ 574 static void 575 ice_parse_org_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) 576 { 577 u32 ouisubtype; 578 u32 oui; 579 580 ouisubtype = NTOHL(tlv->ouisubtype); 581 oui = ((ouisubtype & ICE_LLDP_TLV_OUI_M) >> ICE_LLDP_TLV_OUI_S); 582 switch (oui) { 583 case ICE_IEEE_8021QAZ_OUI: 584 ice_parse_ieee_tlv(tlv, dcbcfg); 585 break; 586 case ICE_CEE_DCBX_OUI: 587 ice_parse_cee_tlv(tlv, dcbcfg); 588 break; 589 default: 590 break; 591 } 592 } 593 594 /** 595 * ice_lldp_to_dcb_cfg 596 * @lldpmib: LLDPDU to be parsed 597 * @dcbcfg: store for LLDPDU data 598 * 599 * Parse DCB configuration from the LLDPDU 600 */ 601 enum ice_status ice_lldp_to_dcb_cfg(u8 *lldpmib, struct ice_dcbx_cfg *dcbcfg) 602 { 603 struct ice_lldp_org_tlv *tlv; 604 enum ice_status ret = ICE_SUCCESS; 605 u16 offset = 0; 606 u16 typelen; 607 u16 type; 608 u16 len; 609 610 if (!lldpmib || !dcbcfg) 611 return ICE_ERR_PARAM; 612 613 /* set to the start of LLDPDU */ 614 lldpmib += ETH_HEADER_LEN; 615 tlv = (struct ice_lldp_org_tlv *)lldpmib; 616 while (1) { 617 typelen = NTOHS(tlv->typelen); 618 type = ((typelen & ICE_LLDP_TLV_TYPE_M) >> ICE_LLDP_TLV_TYPE_S); 619 len = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S); 620 offset += sizeof(typelen) + len; 621 622 /* END TLV or beyond LLDPDU size */ 623 if (type == ICE_TLV_TYPE_END || offset > ICE_LLDPDU_SIZE) 624 break; 625 626 switch (type) { 627 case ICE_TLV_TYPE_ORG: 628 ice_parse_org_tlv(tlv, dcbcfg); 629 break; 630 default: 631 break; 632 } 633 634 /* Move to next TLV */ 635 tlv = (struct ice_lldp_org_tlv *) 636 ((char *)tlv + sizeof(tlv->typelen) + len); 637 } 638 639 return ret; 640 } 641 642 /** 643 * ice_aq_get_dcb_cfg 644 * @hw: pointer to the HW struct 645 * @mib_type: MIB type for the query 646 * @bridgetype: bridge type for the query (remote) 647 * @dcbcfg: store for LLDPDU data 648 * 649 * Query DCB configuration from the firmware 650 */ 651 enum ice_status 652 ice_aq_get_dcb_cfg(struct ice_hw *hw, u8 mib_type, u8 bridgetype, 653 struct ice_dcbx_cfg *dcbcfg) 654 { 655 enum ice_status ret; 656 u8 *lldpmib; 657 658 /* Allocate the LLDPDU */ 659 lldpmib = (u8 *)ice_malloc(hw, ICE_LLDPDU_SIZE); 660 if (!lldpmib) 661 return ICE_ERR_NO_MEMORY; 662 663 ret = ice_aq_get_lldp_mib(hw, bridgetype, mib_type, (void *)lldpmib, 664 ICE_LLDPDU_SIZE, NULL, NULL, NULL); 665 666 if (ret == ICE_SUCCESS) 667 /* Parse LLDP MIB to get DCB configuration */ 668 ret = ice_lldp_to_dcb_cfg(lldpmib, dcbcfg); 669 670 ice_free(hw, lldpmib); 671 672 return ret; 673 } 674 675 /** 676 * ice_aq_start_stop_dcbx - Start/Stop DCBX service in FW 677 * @hw: pointer to the HW struct 678 * @start_dcbx_agent: True if DCBX Agent needs to be started 679 * False if DCBX Agent needs to be stopped 680 * @dcbx_agent_status: FW indicates back the DCBX agent status 681 * True if DCBX Agent is active 682 * False if DCBX Agent is stopped 683 * @cd: pointer to command details structure or NULL 684 * 685 * Start/Stop the embedded dcbx Agent. In case that this wrapper function 686 * returns ICE_SUCCESS, caller will need to check if FW returns back the same 687 * value as stated in dcbx_agent_status, and react accordingly. (0x0A09) 688 */ 689 enum ice_status 690 ice_aq_start_stop_dcbx(struct ice_hw *hw, bool start_dcbx_agent, 691 bool *dcbx_agent_status, struct ice_sq_cd *cd) 692 { 693 struct ice_aqc_lldp_stop_start_specific_agent *cmd; 694 enum ice_status status; 695 struct ice_aq_desc desc; 696 u16 opcode; 697 698 cmd = &desc.params.lldp_agent_ctrl; 699 700 opcode = ice_aqc_opc_lldp_stop_start_specific_agent; 701 702 ice_fill_dflt_direct_cmd_desc(&desc, opcode); 703 704 if (start_dcbx_agent) 705 cmd->command = ICE_AQC_START_STOP_AGENT_START_DCBX; 706 707 status = ice_aq_send_cmd(hw, &desc, NULL, 0, cd); 708 709 *dcbx_agent_status = false; 710 711 if (status == ICE_SUCCESS && 712 cmd->command == ICE_AQC_START_STOP_AGENT_START_DCBX) 713 *dcbx_agent_status = true; 714 715 return status; 716 } 717 718 /** 719 * ice_aq_get_cee_dcb_cfg 720 * @hw: pointer to the HW struct 721 * @buff: response buffer that stores CEE operational configuration 722 * @cd: pointer to command details structure or NULL 723 * 724 * Get CEE DCBX mode operational configuration from firmware (0x0A07) 725 */ 726 enum ice_status 727 ice_aq_get_cee_dcb_cfg(struct ice_hw *hw, 728 struct ice_aqc_get_cee_dcb_cfg_resp *buff, 729 struct ice_sq_cd *cd) 730 { 731 struct ice_aq_desc desc; 732 733 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_cee_dcb_cfg); 734 735 return ice_aq_send_cmd(hw, &desc, (void *)buff, sizeof(*buff), cd); 736 } 737 738 /** 739 * ice_aq_set_pfc_mode - Set PFC mode 740 * @hw: pointer to the HW struct 741 * @pfc_mode: value of PFC mode to set 742 * @cd: pointer to command details structure or NULL 743 * 744 * This AQ call configures the PFC mdoe to DSCP-based PFC mode or VLAN 745 * -based PFC (0x0303) 746 */ 747 enum ice_status 748 ice_aq_set_pfc_mode(struct ice_hw *hw, u8 pfc_mode, struct ice_sq_cd *cd) 749 { 750 struct ice_aqc_set_query_pfc_mode *cmd; 751 struct ice_aq_desc desc; 752 enum ice_status status; 753 754 if (pfc_mode > ICE_AQC_PFC_DSCP_BASED_PFC) 755 return ICE_ERR_PARAM; 756 757 cmd = &desc.params.set_query_pfc_mode; 758 759 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_set_pfc_mode); 760 761 cmd->pfc_mode = pfc_mode; 762 763 status = ice_aq_send_cmd(hw, &desc, NULL, 0, cd); 764 if (status) 765 return status; 766 767 /* The spec isn't clear about whether the FW will return an error code 768 * if the PFC mode requested by the driver was not set. The spec just 769 * says that the FW will write the PFC mode set back into cmd->pfc_mode, 770 * so after the AQ has been executed, check if cmd->pfc_mode is what was 771 * requested. 772 */ 773 if (cmd->pfc_mode != pfc_mode) 774 return ICE_ERR_NOT_SUPPORTED; 775 776 return ICE_SUCCESS; 777 } 778 779 /** 780 * ice_cee_to_dcb_cfg 781 * @cee_cfg: pointer to CEE configuration struct 782 * @pi: port information structure 783 * 784 * Convert CEE configuration from firmware to DCB configuration 785 */ 786 static void 787 ice_cee_to_dcb_cfg(struct ice_aqc_get_cee_dcb_cfg_resp *cee_cfg, 788 struct ice_port_info *pi) 789 { 790 u32 status, tlv_status = LE32_TO_CPU(cee_cfg->tlv_status); 791 u32 ice_aqc_cee_status_mask, ice_aqc_cee_status_shift; 792 u8 i, j, err, sync, oper, app_index, ice_app_sel_type; 793 u16 app_prio = LE16_TO_CPU(cee_cfg->oper_app_prio); 794 u16 ice_aqc_cee_app_mask, ice_aqc_cee_app_shift; 795 struct ice_dcbx_cfg *cmp_dcbcfg, *dcbcfg; 796 u16 ice_app_prot_id_type; 797 798 dcbcfg = &pi->qos_cfg.local_dcbx_cfg; 799 dcbcfg->dcbx_mode = ICE_DCBX_MODE_CEE; 800 dcbcfg->tlv_status = tlv_status; 801 802 /* CEE PG data */ 803 dcbcfg->etscfg.maxtcs = cee_cfg->oper_num_tc; 804 805 /* Note that the FW creates the oper_prio_tc nibbles reversed 806 * from those in the CEE Priority Group sub-TLV. 807 */ 808 for (i = 0; i < ICE_MAX_TRAFFIC_CLASS / 2; i++) { 809 dcbcfg->etscfg.prio_table[i * 2] = 810 ((cee_cfg->oper_prio_tc[i] & ICE_CEE_PGID_PRIO_0_M) >> 811 ICE_CEE_PGID_PRIO_0_S); 812 dcbcfg->etscfg.prio_table[i * 2 + 1] = 813 ((cee_cfg->oper_prio_tc[i] & ICE_CEE_PGID_PRIO_1_M) >> 814 ICE_CEE_PGID_PRIO_1_S); 815 } 816 817 ice_for_each_traffic_class(i) { 818 dcbcfg->etscfg.tcbwtable[i] = cee_cfg->oper_tc_bw[i]; 819 820 if (dcbcfg->etscfg.prio_table[i] == ICE_CEE_PGID_STRICT) { 821 /* Map it to next empty TC */ 822 dcbcfg->etscfg.prio_table[i] = cee_cfg->oper_num_tc - 1; 823 dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_STRICT; 824 } else { 825 dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_ETS; 826 } 827 } 828 829 /* CEE PFC data */ 830 dcbcfg->pfc.pfcena = cee_cfg->oper_pfc_en; 831 dcbcfg->pfc.pfccap = ICE_MAX_TRAFFIC_CLASS; 832 833 /* CEE APP TLV data */ 834 if (dcbcfg->app_mode == ICE_DCBX_APPS_NON_WILLING) 835 cmp_dcbcfg = &pi->qos_cfg.desired_dcbx_cfg; 836 else 837 cmp_dcbcfg = &pi->qos_cfg.remote_dcbx_cfg; 838 839 app_index = 0; 840 for (i = 0; i < 3; i++) { 841 if (i == 0) { 842 /* FCoE APP */ 843 ice_aqc_cee_status_mask = ICE_AQC_CEE_FCOE_STATUS_M; 844 ice_aqc_cee_status_shift = ICE_AQC_CEE_FCOE_STATUS_S; 845 ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_FCOE_M; 846 ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_FCOE_S; 847 ice_app_sel_type = ICE_APP_SEL_ETHTYPE; 848 ice_app_prot_id_type = ICE_APP_PROT_ID_FCOE; 849 } else if (i == 1) { 850 /* iSCSI APP */ 851 ice_aqc_cee_status_mask = ICE_AQC_CEE_ISCSI_STATUS_M; 852 ice_aqc_cee_status_shift = ICE_AQC_CEE_ISCSI_STATUS_S; 853 ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_ISCSI_M; 854 ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_ISCSI_S; 855 ice_app_sel_type = ICE_APP_SEL_TCPIP; 856 ice_app_prot_id_type = ICE_APP_PROT_ID_ISCSI; 857 858 for (j = 0; j < cmp_dcbcfg->numapps; j++) { 859 u16 prot_id = cmp_dcbcfg->app[j].prot_id; 860 u8 sel = cmp_dcbcfg->app[j].selector; 861 862 if (sel == ICE_APP_SEL_TCPIP && 863 (prot_id == ICE_APP_PROT_ID_ISCSI || 864 prot_id == ICE_APP_PROT_ID_ISCSI_860)) { 865 ice_app_prot_id_type = prot_id; 866 break; 867 } 868 } 869 } else { 870 /* FIP APP */ 871 ice_aqc_cee_status_mask = ICE_AQC_CEE_FIP_STATUS_M; 872 ice_aqc_cee_status_shift = ICE_AQC_CEE_FIP_STATUS_S; 873 ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_FIP_M; 874 ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_FIP_S; 875 ice_app_sel_type = ICE_APP_SEL_ETHTYPE; 876 ice_app_prot_id_type = ICE_APP_PROT_ID_FIP; 877 } 878 879 status = (tlv_status & ice_aqc_cee_status_mask) >> 880 ice_aqc_cee_status_shift; 881 err = (status & ICE_TLV_STATUS_ERR) ? 1 : 0; 882 sync = (status & ICE_TLV_STATUS_SYNC) ? 1 : 0; 883 oper = (status & ICE_TLV_STATUS_OPER) ? 1 : 0; 884 /* Add FCoE/iSCSI/FIP APP if Error is False and 885 * Oper/Sync is True 886 */ 887 if (!err && sync && oper) { 888 dcbcfg->app[app_index].priority = 889 (app_prio & ice_aqc_cee_app_mask) >> 890 ice_aqc_cee_app_shift; 891 dcbcfg->app[app_index].selector = ice_app_sel_type; 892 dcbcfg->app[app_index].prot_id = ice_app_prot_id_type; 893 app_index++; 894 } 895 } 896 897 dcbcfg->numapps = app_index; 898 } 899 900 /** 901 * ice_get_ieee_or_cee_dcb_cfg 902 * @pi: port information structure 903 * @dcbx_mode: mode of DCBX (IEEE or CEE) 904 * 905 * Get IEEE or CEE mode DCB configuration from the Firmware 906 */ 907 STATIC enum ice_status 908 ice_get_ieee_or_cee_dcb_cfg(struct ice_port_info *pi, u8 dcbx_mode) 909 { 910 struct ice_dcbx_cfg *dcbx_cfg = NULL; 911 enum ice_status ret; 912 913 if (!pi) 914 return ICE_ERR_PARAM; 915 916 if (dcbx_mode == ICE_DCBX_MODE_IEEE) 917 dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg; 918 else if (dcbx_mode == ICE_DCBX_MODE_CEE) 919 dcbx_cfg = &pi->qos_cfg.desired_dcbx_cfg; 920 921 /* Get Local DCB Config in case of ICE_DCBX_MODE_IEEE 922 * or get CEE DCB Desired Config in case of ICE_DCBX_MODE_CEE 923 */ 924 ret = ice_aq_get_dcb_cfg(pi->hw, ICE_AQ_LLDP_MIB_LOCAL, 925 ICE_AQ_LLDP_BRID_TYPE_NEAREST_BRID, dcbx_cfg); 926 if (ret) 927 goto out; 928 929 /* Get Remote DCB Config */ 930 dcbx_cfg = &pi->qos_cfg.remote_dcbx_cfg; 931 ret = ice_aq_get_dcb_cfg(pi->hw, ICE_AQ_LLDP_MIB_REMOTE, 932 ICE_AQ_LLDP_BRID_TYPE_NEAREST_BRID, dcbx_cfg); 933 /* Don't treat ENOENT as an error for Remote MIBs */ 934 if (pi->hw->adminq.sq_last_status == ICE_AQ_RC_ENOENT) 935 ret = ICE_SUCCESS; 936 937 out: 938 return ret; 939 } 940 941 /** 942 * ice_get_dcb_cfg 943 * @pi: port information structure 944 * 945 * Get DCB configuration from the Firmware 946 */ 947 enum ice_status ice_get_dcb_cfg(struct ice_port_info *pi) 948 { 949 struct ice_aqc_get_cee_dcb_cfg_resp cee_cfg; 950 struct ice_dcbx_cfg *dcbx_cfg; 951 enum ice_status ret; 952 953 if (!pi) 954 return ICE_ERR_PARAM; 955 956 ret = ice_aq_get_cee_dcb_cfg(pi->hw, &cee_cfg, NULL); 957 if (ret == ICE_SUCCESS) { 958 /* CEE mode */ 959 ret = ice_get_ieee_or_cee_dcb_cfg(pi, ICE_DCBX_MODE_CEE); 960 ice_cee_to_dcb_cfg(&cee_cfg, pi); 961 } else if (pi->hw->adminq.sq_last_status == ICE_AQ_RC_ENOENT) { 962 /* CEE mode not enabled try querying IEEE data */ 963 dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg; 964 dcbx_cfg->dcbx_mode = ICE_DCBX_MODE_IEEE; 965 ret = ice_get_ieee_or_cee_dcb_cfg(pi, ICE_DCBX_MODE_IEEE); 966 } 967 968 return ret; 969 } 970 971 /** 972 * ice_init_dcb 973 * @hw: pointer to the HW struct 974 * @enable_mib_change: enable MIB change event 975 * 976 * Update DCB configuration from the Firmware 977 */ 978 enum ice_status ice_init_dcb(struct ice_hw *hw, bool enable_mib_change) 979 { 980 struct ice_qos_cfg *qos_cfg = &hw->port_info->qos_cfg; 981 enum ice_status ret = ICE_SUCCESS; 982 983 if (!hw->func_caps.common_cap.dcb) 984 return ICE_ERR_NOT_SUPPORTED; 985 986 qos_cfg->is_sw_lldp = true; 987 988 /* Get DCBX status */ 989 qos_cfg->dcbx_status = ice_get_dcbx_status(hw); 990 991 if (qos_cfg->dcbx_status == ICE_DCBX_STATUS_DONE || 992 qos_cfg->dcbx_status == ICE_DCBX_STATUS_IN_PROGRESS || 993 qos_cfg->dcbx_status == ICE_DCBX_STATUS_NOT_STARTED) { 994 /* Get current DCBX configuration */ 995 ret = ice_get_dcb_cfg(hw->port_info); 996 if (ret) 997 return ret; 998 qos_cfg->is_sw_lldp = false; 999 } else if (qos_cfg->dcbx_status == ICE_DCBX_STATUS_DIS) { 1000 return ICE_ERR_NOT_READY; 1001 } 1002 1003 /* Configure the LLDP MIB change event */ 1004 if (enable_mib_change) { 1005 ret = ice_aq_cfg_lldp_mib_change(hw, true, NULL); 1006 if (ret) 1007 qos_cfg->is_sw_lldp = true; 1008 } 1009 1010 return ret; 1011 } 1012 1013 /** 1014 * ice_cfg_lldp_mib_change 1015 * @hw: pointer to the HW struct 1016 * @ena_mib: enable/disable MIB change event 1017 * 1018 * Configure (disable/enable) MIB 1019 */ 1020 enum ice_status ice_cfg_lldp_mib_change(struct ice_hw *hw, bool ena_mib) 1021 { 1022 struct ice_qos_cfg *qos_cfg = &hw->port_info->qos_cfg; 1023 enum ice_status ret; 1024 1025 if (!hw->func_caps.common_cap.dcb) 1026 return ICE_ERR_NOT_SUPPORTED; 1027 1028 /* Get DCBX status */ 1029 qos_cfg->dcbx_status = ice_get_dcbx_status(hw); 1030 1031 if (qos_cfg->dcbx_status == ICE_DCBX_STATUS_DIS) 1032 return ICE_ERR_NOT_READY; 1033 1034 ret = ice_aq_cfg_lldp_mib_change(hw, ena_mib, NULL); 1035 if (!ret) 1036 qos_cfg->is_sw_lldp = !ena_mib; 1037 1038 return ret; 1039 } 1040 1041 /** 1042 * ice_add_ieee_ets_common_tlv 1043 * @buf: Data buffer to be populated with ice_dcb_ets_cfg data 1044 * @ets_cfg: Container for ice_dcb_ets_cfg data 1045 * 1046 * Populate the TLV buffer with ice_dcb_ets_cfg data 1047 */ 1048 static void 1049 ice_add_ieee_ets_common_tlv(u8 *buf, struct ice_dcb_ets_cfg *ets_cfg) 1050 { 1051 u8 priority0, priority1; 1052 u8 offset = 0; 1053 int i; 1054 1055 /* Priority Assignment Table (4 octets) 1056 * Octets:| 1 | 2 | 3 | 4 | 1057 * ----------------------------------------- 1058 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7| 1059 * ----------------------------------------- 1060 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0| 1061 * ----------------------------------------- 1062 */ 1063 for (i = 0; i < ICE_MAX_TRAFFIC_CLASS / 2; i++) { 1064 priority0 = ets_cfg->prio_table[i * 2] & 0xF; 1065 priority1 = ets_cfg->prio_table[i * 2 + 1] & 0xF; 1066 buf[offset] = (priority0 << ICE_IEEE_ETS_PRIO_1_S) | priority1; 1067 offset++; 1068 } 1069 1070 /* TC Bandwidth Table (8 octets) 1071 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 1072 * --------------------------------- 1073 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7| 1074 * --------------------------------- 1075 * 1076 * TSA Assignment Table (8 octets) 1077 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 1078 * --------------------------------- 1079 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7| 1080 * --------------------------------- 1081 */ 1082 ice_for_each_traffic_class(i) { 1083 buf[offset] = ets_cfg->tcbwtable[i]; 1084 buf[ICE_MAX_TRAFFIC_CLASS + offset] = ets_cfg->tsatable[i]; 1085 offset++; 1086 } 1087 } 1088 1089 /** 1090 * ice_add_ieee_ets_tlv - Prepare ETS TLV in IEEE format 1091 * @tlv: Fill the ETS config data in IEEE format 1092 * @dcbcfg: Local store which holds the DCB Config 1093 * 1094 * Prepare IEEE 802.1Qaz ETS CFG TLV 1095 */ 1096 static void 1097 ice_add_ieee_ets_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) 1098 { 1099 struct ice_dcb_ets_cfg *etscfg; 1100 u8 *buf = tlv->tlvinfo; 1101 u8 maxtcwilling = 0; 1102 u32 ouisubtype; 1103 u16 typelen; 1104 1105 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | 1106 ICE_IEEE_ETS_TLV_LEN); 1107 tlv->typelen = HTONS(typelen); 1108 1109 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) | 1110 ICE_IEEE_SUBTYPE_ETS_CFG); 1111 tlv->ouisubtype = HTONL(ouisubtype); 1112 1113 /* First Octet post subtype 1114 * -------------------------- 1115 * |will-|CBS | Re- | Max | 1116 * |ing | |served| TCs | 1117 * -------------------------- 1118 * |1bit | 1bit|3 bits|3bits| 1119 */ 1120 etscfg = &dcbcfg->etscfg; 1121 if (etscfg->willing) 1122 maxtcwilling = BIT(ICE_IEEE_ETS_WILLING_S); 1123 maxtcwilling |= etscfg->maxtcs & ICE_IEEE_ETS_MAXTC_M; 1124 buf[0] = maxtcwilling; 1125 1126 /* Begin adding at Priority Assignment Table (offset 1 in buf) */ 1127 ice_add_ieee_ets_common_tlv(&buf[1], etscfg); 1128 } 1129 1130 /** 1131 * ice_add_ieee_etsrec_tlv - Prepare ETS Recommended TLV in IEEE format 1132 * @tlv: Fill ETS Recommended TLV in IEEE format 1133 * @dcbcfg: Local store which holds the DCB Config 1134 * 1135 * Prepare IEEE 802.1Qaz ETS REC TLV 1136 */ 1137 static void 1138 ice_add_ieee_etsrec_tlv(struct ice_lldp_org_tlv *tlv, 1139 struct ice_dcbx_cfg *dcbcfg) 1140 { 1141 struct ice_dcb_ets_cfg *etsrec; 1142 u8 *buf = tlv->tlvinfo; 1143 u32 ouisubtype; 1144 u16 typelen; 1145 1146 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | 1147 ICE_IEEE_ETS_TLV_LEN); 1148 tlv->typelen = HTONS(typelen); 1149 1150 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) | 1151 ICE_IEEE_SUBTYPE_ETS_REC); 1152 tlv->ouisubtype = HTONL(ouisubtype); 1153 1154 etsrec = &dcbcfg->etsrec; 1155 1156 /* First Octet is reserved */ 1157 /* Begin adding at Priority Assignment Table (offset 1 in buf) */ 1158 ice_add_ieee_ets_common_tlv(&buf[1], etsrec); 1159 } 1160 1161 /** 1162 * ice_add_ieee_pfc_tlv - Prepare PFC TLV in IEEE format 1163 * @tlv: Fill PFC TLV in IEEE format 1164 * @dcbcfg: Local store which holds the PFC CFG data 1165 * 1166 * Prepare IEEE 802.1Qaz PFC CFG TLV 1167 */ 1168 static void 1169 ice_add_ieee_pfc_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) 1170 { 1171 u8 *buf = tlv->tlvinfo; 1172 u32 ouisubtype; 1173 u16 typelen; 1174 1175 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | 1176 ICE_IEEE_PFC_TLV_LEN); 1177 tlv->typelen = HTONS(typelen); 1178 1179 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) | 1180 ICE_IEEE_SUBTYPE_PFC_CFG); 1181 tlv->ouisubtype = HTONL(ouisubtype); 1182 1183 /* ---------------------------------------- 1184 * |will-|MBC | Re- | PFC | PFC Enable | 1185 * |ing | |served| cap | | 1186 * ----------------------------------------- 1187 * |1bit | 1bit|2 bits|4bits| 1 octet | 1188 */ 1189 if (dcbcfg->pfc.willing) 1190 buf[0] = BIT(ICE_IEEE_PFC_WILLING_S); 1191 1192 if (dcbcfg->pfc.mbc) 1193 buf[0] |= BIT(ICE_IEEE_PFC_MBC_S); 1194 1195 buf[0] |= dcbcfg->pfc.pfccap & 0xF; 1196 buf[1] = dcbcfg->pfc.pfcena; 1197 } 1198 1199 /** 1200 * ice_add_ieee_app_pri_tlv - Prepare APP TLV in IEEE format 1201 * @tlv: Fill APP TLV in IEEE format 1202 * @dcbcfg: Local store which holds the APP CFG data 1203 * 1204 * Prepare IEEE 802.1Qaz APP CFG TLV 1205 */ 1206 static void 1207 ice_add_ieee_app_pri_tlv(struct ice_lldp_org_tlv *tlv, 1208 struct ice_dcbx_cfg *dcbcfg) 1209 { 1210 u16 typelen, len, offset = 0; 1211 u8 priority, selector, i = 0; 1212 u8 *buf = tlv->tlvinfo; 1213 u32 ouisubtype; 1214 1215 /* No APP TLVs then just return */ 1216 if (dcbcfg->numapps == 0) 1217 return; 1218 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) | 1219 ICE_IEEE_SUBTYPE_APP_PRI); 1220 tlv->ouisubtype = HTONL(ouisubtype); 1221 1222 /* Move offset to App Priority Table */ 1223 offset++; 1224 /* Application Priority Table (3 octets) 1225 * Octets:| 1 | 2 | 3 | 1226 * ----------------------------------------- 1227 * |Priority|Rsrvd| Sel | Protocol ID | 1228 * ----------------------------------------- 1229 * Bits:|23 21|20 19|18 16|15 0| 1230 * ----------------------------------------- 1231 */ 1232 while (i < dcbcfg->numapps) { 1233 priority = dcbcfg->app[i].priority & 0x7; 1234 selector = dcbcfg->app[i].selector & 0x7; 1235 buf[offset] = (priority << ICE_IEEE_APP_PRIO_S) | selector; 1236 buf[offset + 1] = (dcbcfg->app[i].prot_id >> 0x8) & 0xFF; 1237 buf[offset + 2] = dcbcfg->app[i].prot_id & 0xFF; 1238 /* Move to next app */ 1239 offset += 3; 1240 i++; 1241 if (i >= ICE_DCBX_MAX_APPS) 1242 break; 1243 } 1244 /* len includes size of ouisubtype + 1 reserved + 3*numapps */ 1245 len = sizeof(tlv->ouisubtype) + 1 + (i * 3); 1246 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | (len & 0x1FF)); 1247 tlv->typelen = HTONS(typelen); 1248 } 1249 1250 /** 1251 * ice_add_dscp_up_tlv - Prepare DSCP to UP TLV 1252 * @tlv: location to build the TLV data 1253 * @dcbcfg: location of data to convert to TLV 1254 */ 1255 static void 1256 ice_add_dscp_up_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) 1257 { 1258 u8 *buf = tlv->tlvinfo; 1259 u32 ouisubtype; 1260 u16 typelen; 1261 int i; 1262 1263 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | 1264 ICE_DSCP_UP_TLV_LEN); 1265 tlv->typelen = HTONS(typelen); 1266 1267 ouisubtype = (u32)((ICE_DSCP_OUI << ICE_LLDP_TLV_OUI_S) | 1268 ICE_DSCP_SUBTYPE_DSCP2UP); 1269 tlv->ouisubtype = HTONL(ouisubtype); 1270 1271 /* bytes 0 - 63 - IPv4 DSCP2UP LUT */ 1272 for (i = 0; i < ICE_DSCP_NUM_VAL; i++) { 1273 /* IPv4 mapping */ 1274 buf[i] = dcbcfg->dscp_map[i]; 1275 /* IPv6 mapping */ 1276 buf[i + ICE_DSCP_IPV6_OFFSET] = dcbcfg->dscp_map[i]; 1277 } 1278 1279 /* byte 64 - IPv4 untagged traffic */ 1280 buf[i] = 0; 1281 1282 /* byte 144 - IPv6 untagged traffic */ 1283 buf[i + ICE_DSCP_IPV6_OFFSET] = 0; 1284 } 1285 1286 #define ICE_BYTES_PER_TC 8 1287 /** 1288 * ice_add_dscp_enf_tlv - Prepare DSCP Enforcement TLV 1289 * @tlv: location to build the TLV data 1290 */ 1291 static void 1292 ice_add_dscp_enf_tlv(struct ice_lldp_org_tlv *tlv) 1293 { 1294 u8 *buf = tlv->tlvinfo; 1295 u32 ouisubtype; 1296 u16 typelen; 1297 1298 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | 1299 ICE_DSCP_ENF_TLV_LEN); 1300 tlv->typelen = HTONS(typelen); 1301 1302 ouisubtype = (u32)((ICE_DSCP_OUI << ICE_LLDP_TLV_OUI_S) | 1303 ICE_DSCP_SUBTYPE_ENFORCE); 1304 tlv->ouisubtype = HTONL(ouisubtype); 1305 1306 /* Allow all DSCP values to be valid for all TC's (IPv4 and IPv6) */ 1307 memset(buf, 0, 2 * (ICE_MAX_TRAFFIC_CLASS * ICE_BYTES_PER_TC)); 1308 } 1309 1310 /** 1311 * ice_add_dscp_tc_bw_tlv - Prepare DSCP BW for TC TLV 1312 * @tlv: location to build the TLV data 1313 * @dcbcfg: location of the data to convert to TLV 1314 */ 1315 static void 1316 ice_add_dscp_tc_bw_tlv(struct ice_lldp_org_tlv *tlv, 1317 struct ice_dcbx_cfg *dcbcfg) 1318 { 1319 struct ice_dcb_ets_cfg *etscfg; 1320 u8 *buf = tlv->tlvinfo; 1321 u32 ouisubtype; 1322 u8 offset = 0; 1323 u16 typelen; 1324 int i; 1325 1326 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | 1327 ICE_DSCP_TC_BW_TLV_LEN); 1328 tlv->typelen = HTONS(typelen); 1329 1330 ouisubtype = (u32)((ICE_DSCP_OUI << ICE_LLDP_TLV_OUI_S) | 1331 ICE_DSCP_SUBTYPE_TCBW); 1332 tlv->ouisubtype = HTONL(ouisubtype); 1333 1334 /* First Octet after subtype 1335 * ---------------------------- 1336 * | RSV | CBS | RSV | Max TCs | 1337 * | 1b | 1b | 3b | 3b | 1338 * ---------------------------- 1339 */ 1340 etscfg = &dcbcfg->etscfg; 1341 buf[0] = etscfg->maxtcs & ICE_IEEE_ETS_MAXTC_M; 1342 1343 /* bytes 1 - 4 reserved */ 1344 offset = 5; 1345 1346 /* TC BW table 1347 * bytes 0 - 7 for TC 0 - 7 1348 * 1349 * TSA Assignment table 1350 * bytes 8 - 15 for TC 0 - 7 1351 */ 1352 for (i = 0; i < ICE_MAX_TRAFFIC_CLASS; i++) { 1353 buf[offset] = etscfg->tcbwtable[i]; 1354 buf[offset + ICE_MAX_TRAFFIC_CLASS] = etscfg->tsatable[i]; 1355 offset++; 1356 } 1357 } 1358 1359 /** 1360 * ice_add_dscp_pfc_tlv - Prepare DSCP PFC TLV 1361 * @tlv: Fill PFC TLV in IEEE format 1362 * @dcbcfg: Local store which holds the PFC CFG data 1363 */ 1364 static void 1365 ice_add_dscp_pfc_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) 1366 { 1367 u8 *buf = tlv->tlvinfo; 1368 u32 ouisubtype; 1369 u16 typelen; 1370 1371 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | 1372 ICE_DSCP_PFC_TLV_LEN); 1373 tlv->typelen = HTONS(typelen); 1374 1375 ouisubtype = (u32)((ICE_DSCP_OUI << ICE_LLDP_TLV_OUI_S) | 1376 ICE_DSCP_SUBTYPE_PFC); 1377 tlv->ouisubtype = HTONL(ouisubtype); 1378 1379 buf[0] = dcbcfg->pfc.pfccap & 0xF; 1380 buf[1] = dcbcfg->pfc.pfcena & 0xF; 1381 } 1382 1383 /** 1384 * ice_add_dcb_tlv - Add all IEEE or DSCP TLVs 1385 * @tlv: Fill TLV data in IEEE format 1386 * @dcbcfg: Local store which holds the DCB Config 1387 * @tlvid: Type of IEEE TLV 1388 * 1389 * Add tlv information 1390 */ 1391 static void 1392 ice_add_dcb_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg, 1393 u16 tlvid) 1394 { 1395 if (dcbcfg->pfc_mode == ICE_QOS_MODE_VLAN) { 1396 switch (tlvid) { 1397 case ICE_IEEE_TLV_ID_ETS_CFG: 1398 ice_add_ieee_ets_tlv(tlv, dcbcfg); 1399 break; 1400 case ICE_IEEE_TLV_ID_ETS_REC: 1401 ice_add_ieee_etsrec_tlv(tlv, dcbcfg); 1402 break; 1403 case ICE_IEEE_TLV_ID_PFC_CFG: 1404 ice_add_ieee_pfc_tlv(tlv, dcbcfg); 1405 break; 1406 case ICE_IEEE_TLV_ID_APP_PRI: 1407 ice_add_ieee_app_pri_tlv(tlv, dcbcfg); 1408 break; 1409 default: 1410 break; 1411 } 1412 } else { 1413 /* pfc_mode == ICE_QOS_MODE_DSCP */ 1414 switch (tlvid) { 1415 case ICE_TLV_ID_DSCP_UP: 1416 ice_add_dscp_up_tlv(tlv, dcbcfg); 1417 break; 1418 case ICE_TLV_ID_DSCP_ENF: 1419 ice_add_dscp_enf_tlv(tlv); 1420 break; 1421 case ICE_TLV_ID_DSCP_TC_BW: 1422 ice_add_dscp_tc_bw_tlv(tlv, dcbcfg); 1423 break; 1424 case ICE_TLV_ID_DSCP_TO_PFC: 1425 ice_add_dscp_pfc_tlv(tlv, dcbcfg); 1426 break; 1427 default: 1428 break; 1429 } 1430 } 1431 } 1432 1433 /** 1434 * ice_dcb_cfg_to_lldp - Convert DCB configuration to MIB format 1435 * @lldpmib: pointer to the HW struct 1436 * @miblen: length of LLDP MIB 1437 * @dcbcfg: Local store which holds the DCB Config 1438 * 1439 * Convert the DCB configuration to MIB format 1440 */ 1441 void ice_dcb_cfg_to_lldp(u8 *lldpmib, u16 *miblen, struct ice_dcbx_cfg *dcbcfg) 1442 { 1443 u16 len, offset = 0, tlvid = ICE_TLV_ID_START; 1444 struct ice_lldp_org_tlv *tlv; 1445 u16 typelen; 1446 1447 tlv = (struct ice_lldp_org_tlv *)lldpmib; 1448 while (1) { 1449 ice_add_dcb_tlv(tlv, dcbcfg, tlvid++); 1450 typelen = NTOHS(tlv->typelen); 1451 len = (typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S; 1452 if (len) 1453 offset += len + 2; 1454 /* END TLV or beyond LLDPDU size */ 1455 if (tlvid >= ICE_TLV_ID_END_OF_LLDPPDU || 1456 offset > ICE_LLDPDU_SIZE) 1457 break; 1458 /* Move to next TLV */ 1459 if (len) 1460 tlv = (struct ice_lldp_org_tlv *) 1461 ((char *)tlv + sizeof(tlv->typelen) + len); 1462 } 1463 *miblen = offset; 1464 } 1465 1466 /** 1467 * ice_set_dcb_cfg - Set the local LLDP MIB to FW 1468 * @pi: port information structure 1469 * 1470 * Set DCB configuration to the Firmware 1471 */ 1472 enum ice_status ice_set_dcb_cfg(struct ice_port_info *pi) 1473 { 1474 u8 mib_type, *lldpmib = NULL; 1475 struct ice_dcbx_cfg *dcbcfg; 1476 enum ice_status ret; 1477 struct ice_hw *hw; 1478 u16 miblen; 1479 1480 if (!pi) 1481 return ICE_ERR_PARAM; 1482 1483 hw = pi->hw; 1484 1485 /* update the HW local config */ 1486 dcbcfg = &pi->qos_cfg.local_dcbx_cfg; 1487 /* Allocate the LLDPDU */ 1488 lldpmib = (u8 *)ice_malloc(hw, ICE_LLDPDU_SIZE); 1489 if (!lldpmib) 1490 return ICE_ERR_NO_MEMORY; 1491 1492 mib_type = SET_LOCAL_MIB_TYPE_LOCAL_MIB; 1493 if (dcbcfg->app_mode == ICE_DCBX_APPS_NON_WILLING) 1494 mib_type |= SET_LOCAL_MIB_TYPE_CEE_NON_WILLING; 1495 1496 ice_dcb_cfg_to_lldp(lldpmib, &miblen, dcbcfg); 1497 ret = ice_aq_set_lldp_mib(hw, mib_type, (void *)lldpmib, miblen, 1498 NULL); 1499 1500 ice_free(hw, lldpmib); 1501 1502 return ret; 1503 } 1504 1505 /** 1506 * ice_aq_query_port_ets - query port ETS configuration 1507 * @pi: port information structure 1508 * @buf: pointer to buffer 1509 * @buf_size: buffer size in bytes 1510 * @cd: pointer to command details structure or NULL 1511 * 1512 * query current port ETS configuration 1513 */ 1514 enum ice_status 1515 ice_aq_query_port_ets(struct ice_port_info *pi, 1516 struct ice_aqc_port_ets_elem *buf, u16 buf_size, 1517 struct ice_sq_cd *cd) 1518 { 1519 struct ice_aqc_query_port_ets *cmd; 1520 struct ice_aq_desc desc; 1521 enum ice_status status; 1522 1523 if (!pi) 1524 return ICE_ERR_PARAM; 1525 cmd = &desc.params.port_ets; 1526 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_query_port_ets); 1527 if (pi->root) 1528 cmd->port_teid = pi->root->info.node_teid; 1529 1530 status = ice_aq_send_cmd(pi->hw, &desc, buf, buf_size, cd); 1531 return status; 1532 } 1533 1534 /** 1535 * ice_update_port_tc_tree_cfg - update TC tree configuration 1536 * @pi: port information structure 1537 * @buf: pointer to buffer 1538 * 1539 * update the SW DB with the new TC changes 1540 */ 1541 enum ice_status 1542 ice_update_port_tc_tree_cfg(struct ice_port_info *pi, 1543 struct ice_aqc_port_ets_elem *buf) 1544 { 1545 struct ice_sched_node *node, *tc_node; 1546 struct ice_aqc_txsched_elem_data elem; 1547 enum ice_status status = ICE_SUCCESS; 1548 u32 teid1, teid2; 1549 u8 i, j; 1550 1551 if (!pi) 1552 return ICE_ERR_PARAM; 1553 /* suspend the missing TC nodes */ 1554 for (i = 0; i < pi->root->num_children; i++) { 1555 teid1 = LE32_TO_CPU(pi->root->children[i]->info.node_teid); 1556 ice_for_each_traffic_class(j) { 1557 teid2 = LE32_TO_CPU(buf->tc_node_teid[j]); 1558 if (teid1 == teid2) 1559 break; 1560 } 1561 if (j < ICE_MAX_TRAFFIC_CLASS) 1562 continue; 1563 /* TC is missing */ 1564 pi->root->children[i]->in_use = false; 1565 } 1566 /* add the new TC nodes */ 1567 ice_for_each_traffic_class(j) { 1568 teid2 = LE32_TO_CPU(buf->tc_node_teid[j]); 1569 if (teid2 == ICE_INVAL_TEID) 1570 continue; 1571 /* Is it already present in the tree ? */ 1572 for (i = 0; i < pi->root->num_children; i++) { 1573 tc_node = pi->root->children[i]; 1574 if (!tc_node) 1575 continue; 1576 teid1 = LE32_TO_CPU(tc_node->info.node_teid); 1577 if (teid1 == teid2) { 1578 tc_node->tc_num = j; 1579 tc_node->in_use = true; 1580 break; 1581 } 1582 } 1583 if (i < pi->root->num_children) 1584 continue; 1585 /* new TC */ 1586 status = ice_sched_query_elem(pi->hw, teid2, &elem); 1587 if (!status) 1588 status = ice_sched_add_node(pi, 1, &elem); 1589 if (status) 1590 break; 1591 /* update the TC number */ 1592 node = ice_sched_find_node_by_teid(pi->root, teid2); 1593 if (node) 1594 node->tc_num = j; 1595 } 1596 return status; 1597 } 1598 1599 /** 1600 * ice_query_port_ets - query port ETS configuration 1601 * @pi: port information structure 1602 * @buf: pointer to buffer 1603 * @buf_size: buffer size in bytes 1604 * @cd: pointer to command details structure or NULL 1605 * 1606 * query current port ETS configuration and update the 1607 * SW DB with the TC changes 1608 */ 1609 enum ice_status 1610 ice_query_port_ets(struct ice_port_info *pi, 1611 struct ice_aqc_port_ets_elem *buf, u16 buf_size, 1612 struct ice_sq_cd *cd) 1613 { 1614 enum ice_status status; 1615 1616 ice_acquire_lock(&pi->sched_lock); 1617 status = ice_aq_query_port_ets(pi, buf, buf_size, cd); 1618 if (!status) 1619 status = ice_update_port_tc_tree_cfg(pi, buf); 1620 ice_release_lock(&pi->sched_lock); 1621 return status; 1622 } 1623