1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright (c) 2019, Intel Corporation. */ 3 4 #include "ice_common.h" 5 #include "ice_lib.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 static 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 static 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 static 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 static enum ice_status 602 ice_lldp_to_dcb_cfg(u8 *lldpmib, struct ice_dcbx_cfg *dcbcfg) 603 { 604 struct ice_lldp_org_tlv *tlv; 605 enum ice_status ret = 0; 606 u16 offset = 0; 607 u16 typelen; 608 u16 type; 609 u16 len; 610 611 if (!lldpmib || !dcbcfg) 612 return ICE_ERR_PARAM; 613 614 /* set to the start of LLDPDU */ 615 lldpmib += ETH_HLEN; 616 tlv = (struct ice_lldp_org_tlv *)lldpmib; 617 while (1) { 618 typelen = ntohs(tlv->typelen); 619 type = ((typelen & ICE_LLDP_TLV_TYPE_M) >> ICE_LLDP_TLV_TYPE_S); 620 len = ((typelen & ICE_LLDP_TLV_LEN_M) >> ICE_LLDP_TLV_LEN_S); 621 offset += sizeof(typelen) + len; 622 623 /* END TLV or beyond LLDPDU size */ 624 if (type == ICE_TLV_TYPE_END || offset > ICE_LLDPDU_SIZE) 625 break; 626 627 switch (type) { 628 case ICE_TLV_TYPE_ORG: 629 ice_parse_org_tlv(tlv, dcbcfg); 630 break; 631 default: 632 break; 633 } 634 635 /* Move to next TLV */ 636 tlv = (struct ice_lldp_org_tlv *) 637 ((char *)tlv + sizeof(tlv->typelen) + len); 638 } 639 640 return ret; 641 } 642 643 /** 644 * ice_aq_get_dcb_cfg 645 * @hw: pointer to the HW struct 646 * @mib_type: MIB type for the query 647 * @bridgetype: bridge type for the query (remote) 648 * @dcbcfg: store for LLDPDU data 649 * 650 * Query DCB configuration from the firmware 651 */ 652 enum ice_status 653 ice_aq_get_dcb_cfg(struct ice_hw *hw, u8 mib_type, u8 bridgetype, 654 struct ice_dcbx_cfg *dcbcfg) 655 { 656 enum ice_status ret; 657 u8 *lldpmib; 658 659 /* Allocate the LLDPDU */ 660 lldpmib = devm_kzalloc(ice_hw_to_dev(hw), ICE_LLDPDU_SIZE, GFP_KERNEL); 661 if (!lldpmib) 662 return ICE_ERR_NO_MEMORY; 663 664 ret = ice_aq_get_lldp_mib(hw, bridgetype, mib_type, (void *)lldpmib, 665 ICE_LLDPDU_SIZE, NULL, NULL, NULL); 666 667 if (!ret) 668 /* Parse LLDP MIB to get DCB configuration */ 669 ret = ice_lldp_to_dcb_cfg(lldpmib, dcbcfg); 670 671 devm_kfree(ice_hw_to_dev(hw), lldpmib); 672 673 return ret; 674 } 675 676 /** 677 * ice_aq_start_stop_dcbx - Start/Stop DCBX service in FW 678 * @hw: pointer to the HW struct 679 * @start_dcbx_agent: True if DCBX Agent needs to be started 680 * False if DCBX Agent needs to be stopped 681 * @dcbx_agent_status: FW indicates back the DCBX agent status 682 * True if DCBX Agent is active 683 * False if DCBX Agent is stopped 684 * @cd: pointer to command details structure or NULL 685 * 686 * Start/Stop the embedded dcbx Agent. In case that this wrapper function 687 * returns ICE_SUCCESS, caller will need to check if FW returns back the same 688 * value as stated in dcbx_agent_status, and react accordingly. (0x0A09) 689 */ 690 enum ice_status 691 ice_aq_start_stop_dcbx(struct ice_hw *hw, bool start_dcbx_agent, 692 bool *dcbx_agent_status, struct ice_sq_cd *cd) 693 { 694 struct ice_aqc_lldp_stop_start_specific_agent *cmd; 695 enum ice_status status; 696 struct ice_aq_desc desc; 697 u16 opcode; 698 699 cmd = &desc.params.lldp_agent_ctrl; 700 701 opcode = ice_aqc_opc_lldp_stop_start_specific_agent; 702 703 ice_fill_dflt_direct_cmd_desc(&desc, opcode); 704 705 if (start_dcbx_agent) 706 cmd->command = ICE_AQC_START_STOP_AGENT_START_DCBX; 707 708 status = ice_aq_send_cmd(hw, &desc, NULL, 0, cd); 709 710 *dcbx_agent_status = false; 711 712 if (!status && 713 cmd->command == ICE_AQC_START_STOP_AGENT_START_DCBX) 714 *dcbx_agent_status = true; 715 716 return status; 717 } 718 719 /** 720 * ice_aq_get_cee_dcb_cfg 721 * @hw: pointer to the HW struct 722 * @buff: response buffer that stores CEE operational configuration 723 * @cd: pointer to command details structure or NULL 724 * 725 * Get CEE DCBX mode operational configuration from firmware (0x0A07) 726 */ 727 static enum ice_status 728 ice_aq_get_cee_dcb_cfg(struct ice_hw *hw, 729 struct ice_aqc_get_cee_dcb_cfg_resp *buff, 730 struct ice_sq_cd *cd) 731 { 732 struct ice_aq_desc desc; 733 734 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_cee_dcb_cfg); 735 736 return ice_aq_send_cmd(hw, &desc, (void *)buff, sizeof(*buff), cd); 737 } 738 739 /** 740 * ice_aq_set_pfc_mode - Set PFC mode 741 * @hw: pointer to the HW struct 742 * @pfc_mode: value of PFC mode to set 743 * @cd: pointer to command details structure or NULL 744 * 745 * This AQ call configures the PFC mode to DSCP-based PFC mode or 746 * VLAN-based PFC (0x0303) 747 */ 748 int 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 -EINVAL; 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 ice_status_to_errno(status); 766 767 /* FW will write the PFC mode set back into cmd->pfc_mode, but if DCB is 768 * disabled, FW will write back 0 to cmd->pfc_mode. After the AQ has 769 * been executed, check if cmd->pfc_mode is what was requested. If not, 770 * return an error. 771 */ 772 if (cmd->pfc_mode != pfc_mode) 773 return -EOPNOTSUPP; 774 775 return 0; 776 } 777 778 /** 779 * ice_cee_to_dcb_cfg 780 * @cee_cfg: pointer to CEE configuration struct 781 * @pi: port information structure 782 * 783 * Convert CEE configuration from firmware to DCB configuration 784 */ 785 static void 786 ice_cee_to_dcb_cfg(struct ice_aqc_get_cee_dcb_cfg_resp *cee_cfg, 787 struct ice_port_info *pi) 788 { 789 u32 status, tlv_status = le32_to_cpu(cee_cfg->tlv_status); 790 u32 ice_aqc_cee_status_mask, ice_aqc_cee_status_shift, j; 791 u8 i, err, sync, oper, app_index, ice_app_sel_type; 792 u16 app_prio = le16_to_cpu(cee_cfg->oper_app_prio); 793 u16 ice_aqc_cee_app_mask, ice_aqc_cee_app_shift; 794 struct ice_dcbx_cfg *cmp_dcbcfg, *dcbcfg; 795 u16 ice_app_prot_id_type; 796 797 dcbcfg = &pi->qos_cfg.local_dcbx_cfg; 798 dcbcfg->dcbx_mode = ICE_DCBX_MODE_CEE; 799 dcbcfg->tlv_status = tlv_status; 800 801 /* CEE PG data */ 802 dcbcfg->etscfg.maxtcs = cee_cfg->oper_num_tc; 803 804 /* Note that the FW creates the oper_prio_tc nibbles reversed 805 * from those in the CEE Priority Group sub-TLV. 806 */ 807 for (i = 0; i < ICE_MAX_TRAFFIC_CLASS / 2; i++) { 808 dcbcfg->etscfg.prio_table[i * 2] = 809 ((cee_cfg->oper_prio_tc[i] & ICE_CEE_PGID_PRIO_0_M) >> 810 ICE_CEE_PGID_PRIO_0_S); 811 dcbcfg->etscfg.prio_table[i * 2 + 1] = 812 ((cee_cfg->oper_prio_tc[i] & ICE_CEE_PGID_PRIO_1_M) >> 813 ICE_CEE_PGID_PRIO_1_S); 814 } 815 816 ice_for_each_traffic_class(i) { 817 dcbcfg->etscfg.tcbwtable[i] = cee_cfg->oper_tc_bw[i]; 818 819 if (dcbcfg->etscfg.prio_table[i] == ICE_CEE_PGID_STRICT) { 820 /* Map it to next empty TC */ 821 dcbcfg->etscfg.prio_table[i] = cee_cfg->oper_num_tc - 1; 822 dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_STRICT; 823 } else { 824 dcbcfg->etscfg.tsatable[i] = ICE_IEEE_TSA_ETS; 825 } 826 } 827 828 /* CEE PFC data */ 829 dcbcfg->pfc.pfcena = cee_cfg->oper_pfc_en; 830 dcbcfg->pfc.pfccap = ICE_MAX_TRAFFIC_CLASS; 831 832 /* CEE APP TLV data */ 833 if (dcbcfg->app_mode == ICE_DCBX_APPS_NON_WILLING) 834 cmp_dcbcfg = &pi->qos_cfg.desired_dcbx_cfg; 835 else 836 cmp_dcbcfg = &pi->qos_cfg.remote_dcbx_cfg; 837 838 app_index = 0; 839 for (i = 0; i < 3; i++) { 840 if (i == 0) { 841 /* FCoE APP */ 842 ice_aqc_cee_status_mask = ICE_AQC_CEE_FCOE_STATUS_M; 843 ice_aqc_cee_status_shift = ICE_AQC_CEE_FCOE_STATUS_S; 844 ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_FCOE_M; 845 ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_FCOE_S; 846 ice_app_sel_type = ICE_APP_SEL_ETHTYPE; 847 ice_app_prot_id_type = ETH_P_FCOE; 848 } else if (i == 1) { 849 /* iSCSI APP */ 850 ice_aqc_cee_status_mask = ICE_AQC_CEE_ISCSI_STATUS_M; 851 ice_aqc_cee_status_shift = ICE_AQC_CEE_ISCSI_STATUS_S; 852 ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_ISCSI_M; 853 ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_ISCSI_S; 854 ice_app_sel_type = ICE_APP_SEL_TCPIP; 855 ice_app_prot_id_type = ISCSI_LISTEN_PORT; 856 857 for (j = 0; j < cmp_dcbcfg->numapps; j++) { 858 u16 prot_id = cmp_dcbcfg->app[j].prot_id; 859 u8 sel = cmp_dcbcfg->app[j].selector; 860 861 if (sel == ICE_APP_SEL_TCPIP && 862 (prot_id == ISCSI_LISTEN_PORT || 863 prot_id == ICE_APP_PROT_ID_ISCSI_860)) { 864 ice_app_prot_id_type = prot_id; 865 break; 866 } 867 } 868 } else { 869 /* FIP APP */ 870 ice_aqc_cee_status_mask = ICE_AQC_CEE_FIP_STATUS_M; 871 ice_aqc_cee_status_shift = ICE_AQC_CEE_FIP_STATUS_S; 872 ice_aqc_cee_app_mask = ICE_AQC_CEE_APP_FIP_M; 873 ice_aqc_cee_app_shift = ICE_AQC_CEE_APP_FIP_S; 874 ice_app_sel_type = ICE_APP_SEL_ETHTYPE; 875 ice_app_prot_id_type = ETH_P_FIP; 876 } 877 878 status = (tlv_status & ice_aqc_cee_status_mask) >> 879 ice_aqc_cee_status_shift; 880 err = (status & ICE_TLV_STATUS_ERR) ? 1 : 0; 881 sync = (status & ICE_TLV_STATUS_SYNC) ? 1 : 0; 882 oper = (status & ICE_TLV_STATUS_OPER) ? 1 : 0; 883 /* Add FCoE/iSCSI/FIP APP if Error is False and 884 * Oper/Sync is True 885 */ 886 if (!err && sync && oper) { 887 dcbcfg->app[app_index].priority = 888 (app_prio & ice_aqc_cee_app_mask) >> 889 ice_aqc_cee_app_shift; 890 dcbcfg->app[app_index].selector = ice_app_sel_type; 891 dcbcfg->app[app_index].prot_id = ice_app_prot_id_type; 892 app_index++; 893 } 894 } 895 896 dcbcfg->numapps = app_index; 897 } 898 899 /** 900 * ice_get_ieee_or_cee_dcb_cfg 901 * @pi: port information structure 902 * @dcbx_mode: mode of DCBX (IEEE or CEE) 903 * 904 * Get IEEE or CEE mode DCB configuration from the Firmware 905 */ 906 static enum ice_status 907 ice_get_ieee_or_cee_dcb_cfg(struct ice_port_info *pi, u8 dcbx_mode) 908 { 909 struct ice_dcbx_cfg *dcbx_cfg = NULL; 910 enum ice_status ret; 911 912 if (!pi) 913 return ICE_ERR_PARAM; 914 915 if (dcbx_mode == ICE_DCBX_MODE_IEEE) 916 dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg; 917 else if (dcbx_mode == ICE_DCBX_MODE_CEE) 918 dcbx_cfg = &pi->qos_cfg.desired_dcbx_cfg; 919 920 /* Get Local DCB Config in case of ICE_DCBX_MODE_IEEE 921 * or get CEE DCB Desired Config in case of ICE_DCBX_MODE_CEE 922 */ 923 ret = ice_aq_get_dcb_cfg(pi->hw, ICE_AQ_LLDP_MIB_LOCAL, 924 ICE_AQ_LLDP_BRID_TYPE_NEAREST_BRID, dcbx_cfg); 925 if (ret) 926 goto out; 927 928 /* Get Remote DCB Config */ 929 dcbx_cfg = &pi->qos_cfg.remote_dcbx_cfg; 930 ret = ice_aq_get_dcb_cfg(pi->hw, ICE_AQ_LLDP_MIB_REMOTE, 931 ICE_AQ_LLDP_BRID_TYPE_NEAREST_BRID, dcbx_cfg); 932 /* Don't treat ENOENT as an error for Remote MIBs */ 933 if (pi->hw->adminq.sq_last_status == ICE_AQ_RC_ENOENT) 934 ret = 0; 935 936 out: 937 return ret; 938 } 939 940 /** 941 * ice_get_dcb_cfg 942 * @pi: port information structure 943 * 944 * Get DCB configuration from the Firmware 945 */ 946 enum ice_status ice_get_dcb_cfg(struct ice_port_info *pi) 947 { 948 struct ice_aqc_get_cee_dcb_cfg_resp cee_cfg; 949 struct ice_dcbx_cfg *dcbx_cfg; 950 enum ice_status ret; 951 952 if (!pi) 953 return ICE_ERR_PARAM; 954 955 ret = ice_aq_get_cee_dcb_cfg(pi->hw, &cee_cfg, NULL); 956 if (!ret) { 957 /* CEE mode */ 958 ret = ice_get_ieee_or_cee_dcb_cfg(pi, ICE_DCBX_MODE_CEE); 959 ice_cee_to_dcb_cfg(&cee_cfg, pi); 960 } else if (pi->hw->adminq.sq_last_status == ICE_AQ_RC_ENOENT) { 961 /* CEE mode not enabled try querying IEEE data */ 962 dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg; 963 dcbx_cfg->dcbx_mode = ICE_DCBX_MODE_IEEE; 964 ret = ice_get_ieee_or_cee_dcb_cfg(pi, ICE_DCBX_MODE_IEEE); 965 } 966 967 return ret; 968 } 969 970 /** 971 * ice_init_dcb 972 * @hw: pointer to the HW struct 973 * @enable_mib_change: enable MIB change event 974 * 975 * Update DCB configuration from the Firmware 976 */ 977 enum ice_status ice_init_dcb(struct ice_hw *hw, bool enable_mib_change) 978 { 979 struct ice_qos_cfg *qos_cfg = &hw->port_info->qos_cfg; 980 enum ice_status ret = 0; 981 982 if (!hw->func_caps.common_cap.dcb) 983 return ICE_ERR_NOT_SUPPORTED; 984 985 qos_cfg->is_sw_lldp = true; 986 987 /* Get DCBX status */ 988 qos_cfg->dcbx_status = ice_get_dcbx_status(hw); 989 990 if (qos_cfg->dcbx_status == ICE_DCBX_STATUS_DONE || 991 qos_cfg->dcbx_status == ICE_DCBX_STATUS_IN_PROGRESS || 992 qos_cfg->dcbx_status == ICE_DCBX_STATUS_NOT_STARTED) { 993 /* Get current DCBX configuration */ 994 ret = ice_get_dcb_cfg(hw->port_info); 995 if (ret) 996 return ret; 997 qos_cfg->is_sw_lldp = false; 998 } else if (qos_cfg->dcbx_status == ICE_DCBX_STATUS_DIS) { 999 return ICE_ERR_NOT_READY; 1000 } 1001 1002 /* Configure the LLDP MIB change event */ 1003 if (enable_mib_change) { 1004 ret = ice_aq_cfg_lldp_mib_change(hw, true, NULL); 1005 if (ret) 1006 qos_cfg->is_sw_lldp = true; 1007 } 1008 1009 return ret; 1010 } 1011 1012 /** 1013 * ice_cfg_lldp_mib_change 1014 * @hw: pointer to the HW struct 1015 * @ena_mib: enable/disable MIB change event 1016 * 1017 * Configure (disable/enable) MIB 1018 */ 1019 enum ice_status ice_cfg_lldp_mib_change(struct ice_hw *hw, bool ena_mib) 1020 { 1021 struct ice_qos_cfg *qos_cfg = &hw->port_info->qos_cfg; 1022 enum ice_status ret; 1023 1024 if (!hw->func_caps.common_cap.dcb) 1025 return ICE_ERR_NOT_SUPPORTED; 1026 1027 /* Get DCBX status */ 1028 qos_cfg->dcbx_status = ice_get_dcbx_status(hw); 1029 1030 if (qos_cfg->dcbx_status == ICE_DCBX_STATUS_DIS) 1031 return ICE_ERR_NOT_READY; 1032 1033 ret = ice_aq_cfg_lldp_mib_change(hw, ena_mib, NULL); 1034 if (!ret) 1035 qos_cfg->is_sw_lldp = !ena_mib; 1036 1037 return ret; 1038 } 1039 1040 /** 1041 * ice_add_ieee_ets_common_tlv 1042 * @buf: Data buffer to be populated with ice_dcb_ets_cfg data 1043 * @ets_cfg: Container for ice_dcb_ets_cfg data 1044 * 1045 * Populate the TLV buffer with ice_dcb_ets_cfg data 1046 */ 1047 static void 1048 ice_add_ieee_ets_common_tlv(u8 *buf, struct ice_dcb_ets_cfg *ets_cfg) 1049 { 1050 u8 priority0, priority1; 1051 u8 offset = 0; 1052 int i; 1053 1054 /* Priority Assignment Table (4 octets) 1055 * Octets:| 1 | 2 | 3 | 4 | 1056 * ----------------------------------------- 1057 * |pri0|pri1|pri2|pri3|pri4|pri5|pri6|pri7| 1058 * ----------------------------------------- 1059 * Bits:|7 4|3 0|7 4|3 0|7 4|3 0|7 4|3 0| 1060 * ----------------------------------------- 1061 */ 1062 for (i = 0; i < ICE_MAX_TRAFFIC_CLASS / 2; i++) { 1063 priority0 = ets_cfg->prio_table[i * 2] & 0xF; 1064 priority1 = ets_cfg->prio_table[i * 2 + 1] & 0xF; 1065 buf[offset] = (priority0 << ICE_IEEE_ETS_PRIO_1_S) | priority1; 1066 offset++; 1067 } 1068 1069 /* TC Bandwidth Table (8 octets) 1070 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 1071 * --------------------------------- 1072 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7| 1073 * --------------------------------- 1074 * 1075 * TSA Assignment Table (8 octets) 1076 * Octets:| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 1077 * --------------------------------- 1078 * |tc0|tc1|tc2|tc3|tc4|tc5|tc6|tc7| 1079 * --------------------------------- 1080 */ 1081 ice_for_each_traffic_class(i) { 1082 buf[offset] = ets_cfg->tcbwtable[i]; 1083 buf[ICE_MAX_TRAFFIC_CLASS + offset] = ets_cfg->tsatable[i]; 1084 offset++; 1085 } 1086 } 1087 1088 /** 1089 * ice_add_ieee_ets_tlv - Prepare ETS TLV in IEEE format 1090 * @tlv: Fill the ETS config data in IEEE format 1091 * @dcbcfg: Local store which holds the DCB Config 1092 * 1093 * Prepare IEEE 802.1Qaz ETS CFG TLV 1094 */ 1095 static void 1096 ice_add_ieee_ets_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) 1097 { 1098 struct ice_dcb_ets_cfg *etscfg; 1099 u8 *buf = tlv->tlvinfo; 1100 u8 maxtcwilling = 0; 1101 u32 ouisubtype; 1102 u16 typelen; 1103 1104 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | 1105 ICE_IEEE_ETS_TLV_LEN); 1106 tlv->typelen = htons(typelen); 1107 1108 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) | 1109 ICE_IEEE_SUBTYPE_ETS_CFG); 1110 tlv->ouisubtype = htonl(ouisubtype); 1111 1112 /* First Octet post subtype 1113 * -------------------------- 1114 * |will-|CBS | Re- | Max | 1115 * |ing | |served| TCs | 1116 * -------------------------- 1117 * |1bit | 1bit|3 bits|3bits| 1118 */ 1119 etscfg = &dcbcfg->etscfg; 1120 if (etscfg->willing) 1121 maxtcwilling = BIT(ICE_IEEE_ETS_WILLING_S); 1122 maxtcwilling |= etscfg->maxtcs & ICE_IEEE_ETS_MAXTC_M; 1123 buf[0] = maxtcwilling; 1124 1125 /* Begin adding at Priority Assignment Table (offset 1 in buf) */ 1126 ice_add_ieee_ets_common_tlv(&buf[1], etscfg); 1127 } 1128 1129 /** 1130 * ice_add_ieee_etsrec_tlv - Prepare ETS Recommended TLV in IEEE format 1131 * @tlv: Fill ETS Recommended TLV in IEEE format 1132 * @dcbcfg: Local store which holds the DCB Config 1133 * 1134 * Prepare IEEE 802.1Qaz ETS REC TLV 1135 */ 1136 static void 1137 ice_add_ieee_etsrec_tlv(struct ice_lldp_org_tlv *tlv, 1138 struct ice_dcbx_cfg *dcbcfg) 1139 { 1140 struct ice_dcb_ets_cfg *etsrec; 1141 u8 *buf = tlv->tlvinfo; 1142 u32 ouisubtype; 1143 u16 typelen; 1144 1145 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | 1146 ICE_IEEE_ETS_TLV_LEN); 1147 tlv->typelen = htons(typelen); 1148 1149 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) | 1150 ICE_IEEE_SUBTYPE_ETS_REC); 1151 tlv->ouisubtype = htonl(ouisubtype); 1152 1153 etsrec = &dcbcfg->etsrec; 1154 1155 /* First Octet is reserved */ 1156 /* Begin adding at Priority Assignment Table (offset 1 in buf) */ 1157 ice_add_ieee_ets_common_tlv(&buf[1], etsrec); 1158 } 1159 1160 /** 1161 * ice_add_ieee_pfc_tlv - Prepare PFC TLV in IEEE format 1162 * @tlv: Fill PFC TLV in IEEE format 1163 * @dcbcfg: Local store which holds the PFC CFG data 1164 * 1165 * Prepare IEEE 802.1Qaz PFC CFG TLV 1166 */ 1167 static void 1168 ice_add_ieee_pfc_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) 1169 { 1170 u8 *buf = tlv->tlvinfo; 1171 u32 ouisubtype; 1172 u16 typelen; 1173 1174 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | 1175 ICE_IEEE_PFC_TLV_LEN); 1176 tlv->typelen = htons(typelen); 1177 1178 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) | 1179 ICE_IEEE_SUBTYPE_PFC_CFG); 1180 tlv->ouisubtype = htonl(ouisubtype); 1181 1182 /* ---------------------------------------- 1183 * |will-|MBC | Re- | PFC | PFC Enable | 1184 * |ing | |served| cap | | 1185 * ----------------------------------------- 1186 * |1bit | 1bit|2 bits|4bits| 1 octet | 1187 */ 1188 if (dcbcfg->pfc.willing) 1189 buf[0] = BIT(ICE_IEEE_PFC_WILLING_S); 1190 1191 if (dcbcfg->pfc.mbc) 1192 buf[0] |= BIT(ICE_IEEE_PFC_MBC_S); 1193 1194 buf[0] |= dcbcfg->pfc.pfccap & 0xF; 1195 buf[1] = dcbcfg->pfc.pfcena; 1196 } 1197 1198 /** 1199 * ice_add_ieee_app_pri_tlv - Prepare APP TLV in IEEE format 1200 * @tlv: Fill APP TLV in IEEE format 1201 * @dcbcfg: Local store which holds the APP CFG data 1202 * 1203 * Prepare IEEE 802.1Qaz APP CFG TLV 1204 */ 1205 static void 1206 ice_add_ieee_app_pri_tlv(struct ice_lldp_org_tlv *tlv, 1207 struct ice_dcbx_cfg *dcbcfg) 1208 { 1209 u16 typelen, len, offset = 0; 1210 u8 priority, selector, i = 0; 1211 u8 *buf = tlv->tlvinfo; 1212 u32 ouisubtype; 1213 1214 /* No APP TLVs then just return */ 1215 if (dcbcfg->numapps == 0) 1216 return; 1217 ouisubtype = ((ICE_IEEE_8021QAZ_OUI << ICE_LLDP_TLV_OUI_S) | 1218 ICE_IEEE_SUBTYPE_APP_PRI); 1219 tlv->ouisubtype = htonl(ouisubtype); 1220 1221 /* Move offset to App Priority Table */ 1222 offset++; 1223 /* Application Priority Table (3 octets) 1224 * Octets:| 1 | 2 | 3 | 1225 * ----------------------------------------- 1226 * |Priority|Rsrvd| Sel | Protocol ID | 1227 * ----------------------------------------- 1228 * Bits:|23 21|20 19|18 16|15 0| 1229 * ----------------------------------------- 1230 */ 1231 while (i < dcbcfg->numapps) { 1232 priority = dcbcfg->app[i].priority & 0x7; 1233 selector = dcbcfg->app[i].selector & 0x7; 1234 buf[offset] = (priority << ICE_IEEE_APP_PRIO_S) | selector; 1235 buf[offset + 1] = (dcbcfg->app[i].prot_id >> 0x8) & 0xFF; 1236 buf[offset + 2] = dcbcfg->app[i].prot_id & 0xFF; 1237 /* Move to next app */ 1238 offset += 3; 1239 i++; 1240 if (i >= ICE_DCBX_MAX_APPS) 1241 break; 1242 } 1243 /* len includes size of ouisubtype + 1 reserved + 3*numapps */ 1244 len = sizeof(tlv->ouisubtype) + 1 + (i * 3); 1245 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | (len & 0x1FF)); 1246 tlv->typelen = htons(typelen); 1247 } 1248 1249 /** 1250 * ice_add_dscp_up_tlv - Prepare DSCP to UP TLV 1251 * @tlv: location to build the TLV data 1252 * @dcbcfg: location of data to convert to TLV 1253 */ 1254 static void 1255 ice_add_dscp_up_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) 1256 { 1257 u8 *buf = tlv->tlvinfo; 1258 u32 ouisubtype; 1259 u16 typelen; 1260 int i; 1261 1262 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | 1263 ICE_DSCP_UP_TLV_LEN); 1264 tlv->typelen = htons(typelen); 1265 1266 ouisubtype = (u32)((ICE_DSCP_OUI << ICE_LLDP_TLV_OUI_S) | 1267 ICE_DSCP_SUBTYPE_DSCP2UP); 1268 tlv->ouisubtype = htonl(ouisubtype); 1269 1270 /* bytes 0 - 63 - IPv4 DSCP2UP LUT */ 1271 for (i = 0; i < ICE_DSCP_NUM_VAL; i++) { 1272 /* IPv4 mapping */ 1273 buf[i] = dcbcfg->dscp_map[i]; 1274 /* IPv6 mapping */ 1275 buf[i + ICE_DSCP_IPV6_OFFSET] = dcbcfg->dscp_map[i]; 1276 } 1277 1278 /* byte 64 - IPv4 untagged traffic */ 1279 buf[i] = 0; 1280 1281 /* byte 144 - IPv6 untagged traffic */ 1282 buf[i + ICE_DSCP_IPV6_OFFSET] = 0; 1283 } 1284 1285 #define ICE_BYTES_PER_TC 8 1286 /** 1287 * ice_add_dscp_enf_tlv - Prepare DSCP Enforcement TLV 1288 * @tlv: location to build the TLV data 1289 */ 1290 static void 1291 ice_add_dscp_enf_tlv(struct ice_lldp_org_tlv *tlv) 1292 { 1293 u8 *buf = tlv->tlvinfo; 1294 u32 ouisubtype; 1295 u16 typelen; 1296 1297 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | 1298 ICE_DSCP_ENF_TLV_LEN); 1299 tlv->typelen = htons(typelen); 1300 1301 ouisubtype = (u32)((ICE_DSCP_OUI << ICE_LLDP_TLV_OUI_S) | 1302 ICE_DSCP_SUBTYPE_ENFORCE); 1303 tlv->ouisubtype = htonl(ouisubtype); 1304 1305 /* Allow all DSCP values to be valid for all TC's (IPv4 and IPv6) */ 1306 memset(buf, 0, 2 * (ICE_MAX_TRAFFIC_CLASS * ICE_BYTES_PER_TC)); 1307 } 1308 1309 /** 1310 * ice_add_dscp_tc_bw_tlv - Prepare DSCP BW for TC TLV 1311 * @tlv: location to build the TLV data 1312 * @dcbcfg: location of the data to convert to TLV 1313 */ 1314 static void 1315 ice_add_dscp_tc_bw_tlv(struct ice_lldp_org_tlv *tlv, 1316 struct ice_dcbx_cfg *dcbcfg) 1317 { 1318 struct ice_dcb_ets_cfg *etscfg; 1319 u8 *buf = tlv->tlvinfo; 1320 u32 ouisubtype; 1321 u8 offset = 0; 1322 u16 typelen; 1323 int i; 1324 1325 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | 1326 ICE_DSCP_TC_BW_TLV_LEN); 1327 tlv->typelen = htons(typelen); 1328 1329 ouisubtype = (u32)((ICE_DSCP_OUI << ICE_LLDP_TLV_OUI_S) | 1330 ICE_DSCP_SUBTYPE_TCBW); 1331 tlv->ouisubtype = htonl(ouisubtype); 1332 1333 /* First Octect after subtype 1334 * ---------------------------- 1335 * | RSV | CBS | RSV | Max TCs | 1336 * | 1b | 1b | 3b | 3b | 1337 * ---------------------------- 1338 */ 1339 etscfg = &dcbcfg->etscfg; 1340 buf[0] = etscfg->maxtcs & ICE_IEEE_ETS_MAXTC_M; 1341 1342 /* bytes 1 - 4 reserved */ 1343 offset = 5; 1344 1345 /* TC BW table 1346 * bytes 0 - 7 for TC 0 - 7 1347 * 1348 * TSA Assignment table 1349 * bytes 8 - 15 for TC 0 - 7 1350 */ 1351 for (i = 0; i < ICE_MAX_TRAFFIC_CLASS; i++) { 1352 buf[offset] = etscfg->tcbwtable[i]; 1353 buf[offset + ICE_MAX_TRAFFIC_CLASS] = etscfg->tsatable[i]; 1354 offset++; 1355 } 1356 } 1357 1358 /** 1359 * ice_add_dscp_pfc_tlv - Prepare DSCP PFC TLV 1360 * @tlv: Fill PFC TLV in IEEE format 1361 * @dcbcfg: Local store which holds the PFC CFG data 1362 */ 1363 static void 1364 ice_add_dscp_pfc_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg) 1365 { 1366 u8 *buf = tlv->tlvinfo; 1367 u32 ouisubtype; 1368 u16 typelen; 1369 1370 typelen = ((ICE_TLV_TYPE_ORG << ICE_LLDP_TLV_TYPE_S) | 1371 ICE_DSCP_PFC_TLV_LEN); 1372 tlv->typelen = htons(typelen); 1373 1374 ouisubtype = (u32)((ICE_DSCP_OUI << ICE_LLDP_TLV_OUI_S) | 1375 ICE_DSCP_SUBTYPE_PFC); 1376 tlv->ouisubtype = htonl(ouisubtype); 1377 1378 buf[0] = dcbcfg->pfc.pfccap & 0xF; 1379 buf[1] = dcbcfg->pfc.pfcena & 0xF; 1380 } 1381 1382 /** 1383 * ice_add_dcb_tlv - Add all IEEE or DSCP TLVs 1384 * @tlv: Fill TLV data in IEEE format 1385 * @dcbcfg: Local store which holds the DCB Config 1386 * @tlvid: Type of IEEE TLV 1387 * 1388 * Add tlv information 1389 */ 1390 static void 1391 ice_add_dcb_tlv(struct ice_lldp_org_tlv *tlv, struct ice_dcbx_cfg *dcbcfg, 1392 u16 tlvid) 1393 { 1394 if (dcbcfg->pfc_mode == ICE_QOS_MODE_VLAN) { 1395 switch (tlvid) { 1396 case ICE_IEEE_TLV_ID_ETS_CFG: 1397 ice_add_ieee_ets_tlv(tlv, dcbcfg); 1398 break; 1399 case ICE_IEEE_TLV_ID_ETS_REC: 1400 ice_add_ieee_etsrec_tlv(tlv, dcbcfg); 1401 break; 1402 case ICE_IEEE_TLV_ID_PFC_CFG: 1403 ice_add_ieee_pfc_tlv(tlv, dcbcfg); 1404 break; 1405 case ICE_IEEE_TLV_ID_APP_PRI: 1406 ice_add_ieee_app_pri_tlv(tlv, dcbcfg); 1407 break; 1408 default: 1409 break; 1410 } 1411 } else { 1412 /* pfc_mode == ICE_QOS_MODE_DSCP */ 1413 switch (tlvid) { 1414 case ICE_TLV_ID_DSCP_UP: 1415 ice_add_dscp_up_tlv(tlv, dcbcfg); 1416 break; 1417 case ICE_TLV_ID_DSCP_ENF: 1418 ice_add_dscp_enf_tlv(tlv); 1419 break; 1420 case ICE_TLV_ID_DSCP_TC_BW: 1421 ice_add_dscp_tc_bw_tlv(tlv, dcbcfg); 1422 break; 1423 case ICE_TLV_ID_DSCP_TO_PFC: 1424 ice_add_dscp_pfc_tlv(tlv, dcbcfg); 1425 break; 1426 default: 1427 break; 1428 } 1429 } 1430 } 1431 1432 /** 1433 * ice_dcb_cfg_to_lldp - Convert DCB configuration to MIB format 1434 * @lldpmib: pointer to the HW struct 1435 * @miblen: length of LLDP MIB 1436 * @dcbcfg: Local store which holds the DCB Config 1437 * 1438 * Convert the DCB configuration to MIB format 1439 */ 1440 static void 1441 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 = devm_kzalloc(ice_hw_to_dev(hw), ICE_LLDPDU_SIZE, GFP_KERNEL); 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 devm_kfree(ice_hw_to_dev(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 static 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 cmd->port_teid = pi->root->info.node_teid; 1528 1529 status = ice_aq_send_cmd(pi->hw, &desc, buf, buf_size, cd); 1530 return status; 1531 } 1532 1533 /** 1534 * ice_update_port_tc_tree_cfg - update TC tree configuration 1535 * @pi: port information structure 1536 * @buf: pointer to buffer 1537 * 1538 * update the SW DB with the new TC changes 1539 */ 1540 static enum ice_status 1541 ice_update_port_tc_tree_cfg(struct ice_port_info *pi, 1542 struct ice_aqc_port_ets_elem *buf) 1543 { 1544 struct ice_sched_node *node, *tc_node; 1545 struct ice_aqc_txsched_elem_data elem; 1546 enum ice_status status = 0; 1547 u32 teid1, teid2; 1548 u8 i, j; 1549 1550 if (!pi) 1551 return ICE_ERR_PARAM; 1552 /* suspend the missing TC nodes */ 1553 for (i = 0; i < pi->root->num_children; i++) { 1554 teid1 = le32_to_cpu(pi->root->children[i]->info.node_teid); 1555 ice_for_each_traffic_class(j) { 1556 teid2 = le32_to_cpu(buf->tc_node_teid[j]); 1557 if (teid1 == teid2) 1558 break; 1559 } 1560 if (j < ICE_MAX_TRAFFIC_CLASS) 1561 continue; 1562 /* TC is missing */ 1563 pi->root->children[i]->in_use = false; 1564 } 1565 /* add the new TC nodes */ 1566 ice_for_each_traffic_class(j) { 1567 teid2 = le32_to_cpu(buf->tc_node_teid[j]); 1568 if (teid2 == ICE_INVAL_TEID) 1569 continue; 1570 /* Is it already present in the tree ? */ 1571 for (i = 0; i < pi->root->num_children; i++) { 1572 tc_node = pi->root->children[i]; 1573 if (!tc_node) 1574 continue; 1575 teid1 = le32_to_cpu(tc_node->info.node_teid); 1576 if (teid1 == teid2) { 1577 tc_node->tc_num = j; 1578 tc_node->in_use = true; 1579 break; 1580 } 1581 } 1582 if (i < pi->root->num_children) 1583 continue; 1584 /* new TC */ 1585 status = ice_sched_query_elem(pi->hw, teid2, &elem); 1586 if (!status) 1587 status = ice_sched_add_node(pi, 1, &elem); 1588 if (status) 1589 break; 1590 /* update the TC number */ 1591 node = ice_sched_find_node_by_teid(pi->root, teid2); 1592 if (node) 1593 node->tc_num = j; 1594 } 1595 return status; 1596 } 1597 1598 /** 1599 * ice_query_port_ets - query port ETS configuration 1600 * @pi: port information structure 1601 * @buf: pointer to buffer 1602 * @buf_size: buffer size in bytes 1603 * @cd: pointer to command details structure or NULL 1604 * 1605 * query current port ETS configuration and update the 1606 * SW DB with the TC changes 1607 */ 1608 enum ice_status 1609 ice_query_port_ets(struct ice_port_info *pi, 1610 struct ice_aqc_port_ets_elem *buf, u16 buf_size, 1611 struct ice_sq_cd *cd) 1612 { 1613 enum ice_status status; 1614 1615 mutex_lock(&pi->sched_lock); 1616 status = ice_aq_query_port_ets(pi, buf, buf_size, cd); 1617 if (!status) 1618 status = ice_update_port_tc_tree_cfg(pi, buf); 1619 mutex_unlock(&pi->sched_lock); 1620 return status; 1621 } 1622