1 /* QLogic qed NIC Driver 2 * Copyright (c) 2015 QLogic Corporation 3 * 4 * This software is available under the terms of the GNU General Public License 5 * (GPL) Version 2, available from the file COPYING in the main directory of 6 * this source tree. 7 */ 8 9 #include <linux/types.h> 10 #include <asm/byteorder.h> 11 #include <linux/bitops.h> 12 #include <linux/dcbnl.h> 13 #include <linux/errno.h> 14 #include <linux/kernel.h> 15 #include <linux/slab.h> 16 #include <linux/string.h> 17 #include "qed.h" 18 #include "qed_cxt.h" 19 #include "qed_dcbx.h" 20 #include "qed_hsi.h" 21 #include "qed_sp.h" 22 #include "qed_sriov.h" 23 #ifdef CONFIG_DCB 24 #include <linux/qed/qed_eth_if.h> 25 #endif 26 27 #define QED_DCBX_MAX_MIB_READ_TRY (100) 28 #define QED_ETH_TYPE_DEFAULT (0) 29 #define QED_ETH_TYPE_ROCE (0x8915) 30 #define QED_UDP_PORT_TYPE_ROCE_V2 (0x12B7) 31 #define QED_ETH_TYPE_FCOE (0x8906) 32 #define QED_TCP_PORT_ISCSI (0xCBC) 33 34 #define QED_DCBX_INVALID_PRIORITY 0xFF 35 36 /* Get Traffic Class from priority traffic class table, 4 bits represent 37 * the traffic class corresponding to the priority. 38 */ 39 #define QED_DCBX_PRIO2TC(prio_tc_tbl, prio) \ 40 ((u32)(prio_tc_tbl >> ((7 - prio) * 4)) & 0x7) 41 42 static const struct qed_dcbx_app_metadata qed_dcbx_app_update[] = { 43 {DCBX_PROTOCOL_ISCSI, "ISCSI", QED_PCI_DEFAULT}, 44 {DCBX_PROTOCOL_FCOE, "FCOE", QED_PCI_DEFAULT}, 45 {DCBX_PROTOCOL_ROCE, "ROCE", QED_PCI_DEFAULT}, 46 {DCBX_PROTOCOL_ROCE_V2, "ROCE_V2", QED_PCI_DEFAULT}, 47 {DCBX_PROTOCOL_ETH, "ETH", QED_PCI_ETH} 48 }; 49 50 static bool qed_dcbx_app_ethtype(u32 app_info_bitmap) 51 { 52 return !!(QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) == 53 DCBX_APP_SF_ETHTYPE); 54 } 55 56 static bool qed_dcbx_ieee_app_ethtype(u32 app_info_bitmap) 57 { 58 u8 mfw_val = QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE); 59 60 /* Old MFW */ 61 if (mfw_val == DCBX_APP_SF_IEEE_RESERVED) 62 return qed_dcbx_app_ethtype(app_info_bitmap); 63 64 return !!(mfw_val == DCBX_APP_SF_IEEE_ETHTYPE); 65 } 66 67 static bool qed_dcbx_app_port(u32 app_info_bitmap) 68 { 69 return !!(QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) == 70 DCBX_APP_SF_PORT); 71 } 72 73 static bool qed_dcbx_ieee_app_port(u32 app_info_bitmap, u8 type) 74 { 75 u8 mfw_val = QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE); 76 77 /* Old MFW */ 78 if (mfw_val == DCBX_APP_SF_IEEE_RESERVED) 79 return qed_dcbx_app_port(app_info_bitmap); 80 81 return !!(mfw_val == type || mfw_val == DCBX_APP_SF_IEEE_TCP_UDP_PORT); 82 } 83 84 static bool qed_dcbx_default_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee) 85 { 86 bool ethtype; 87 88 if (ieee) 89 ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap); 90 else 91 ethtype = qed_dcbx_app_ethtype(app_info_bitmap); 92 93 return !!(ethtype && (proto_id == QED_ETH_TYPE_DEFAULT)); 94 } 95 96 static bool qed_dcbx_iscsi_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee) 97 { 98 bool port; 99 100 if (ieee) 101 port = qed_dcbx_ieee_app_port(app_info_bitmap, 102 DCBX_APP_SF_IEEE_TCP_PORT); 103 else 104 port = qed_dcbx_app_port(app_info_bitmap); 105 106 return !!(port && (proto_id == QED_TCP_PORT_ISCSI)); 107 } 108 109 static bool qed_dcbx_fcoe_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee) 110 { 111 bool ethtype; 112 113 if (ieee) 114 ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap); 115 else 116 ethtype = qed_dcbx_app_ethtype(app_info_bitmap); 117 118 return !!(ethtype && (proto_id == QED_ETH_TYPE_FCOE)); 119 } 120 121 static bool qed_dcbx_roce_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee) 122 { 123 bool ethtype; 124 125 if (ieee) 126 ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap); 127 else 128 ethtype = qed_dcbx_app_ethtype(app_info_bitmap); 129 130 return !!(ethtype && (proto_id == QED_ETH_TYPE_ROCE)); 131 } 132 133 static bool qed_dcbx_roce_v2_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee) 134 { 135 bool port; 136 137 if (ieee) 138 port = qed_dcbx_ieee_app_port(app_info_bitmap, 139 DCBX_APP_SF_IEEE_UDP_PORT); 140 else 141 port = qed_dcbx_app_port(app_info_bitmap); 142 143 return !!(port && (proto_id == QED_UDP_PORT_TYPE_ROCE_V2)); 144 } 145 146 static void 147 qed_dcbx_dp_protocol(struct qed_hwfn *p_hwfn, struct qed_dcbx_results *p_data) 148 { 149 enum dcbx_protocol_type id; 150 int i; 151 152 DP_VERBOSE(p_hwfn, QED_MSG_DCB, "DCBX negotiated: %d\n", 153 p_data->dcbx_enabled); 154 155 for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) { 156 id = qed_dcbx_app_update[i].id; 157 158 DP_VERBOSE(p_hwfn, QED_MSG_DCB, 159 "%s info: update %d, enable %d, prio %d, tc %d, num_tc %d\n", 160 qed_dcbx_app_update[i].name, p_data->arr[id].update, 161 p_data->arr[id].enable, p_data->arr[id].priority, 162 p_data->arr[id].tc, p_hwfn->hw_info.num_tc); 163 } 164 } 165 166 static void 167 qed_dcbx_set_params(struct qed_dcbx_results *p_data, 168 struct qed_hw_info *p_info, 169 bool enable, 170 bool update, 171 u8 prio, 172 u8 tc, 173 enum dcbx_protocol_type type, 174 enum qed_pci_personality personality) 175 { 176 /* PF update ramrod data */ 177 p_data->arr[type].update = update; 178 p_data->arr[type].enable = enable; 179 p_data->arr[type].priority = prio; 180 p_data->arr[type].tc = tc; 181 182 /* QM reconf data */ 183 if (p_info->personality == personality) { 184 if (personality == QED_PCI_ETH) 185 p_info->non_offload_tc = tc; 186 else 187 p_info->offload_tc = tc; 188 } 189 } 190 191 /* Update app protocol data and hw_info fields with the TLV info */ 192 static void 193 qed_dcbx_update_app_info(struct qed_dcbx_results *p_data, 194 struct qed_hwfn *p_hwfn, 195 bool enable, 196 bool update, 197 u8 prio, u8 tc, enum dcbx_protocol_type type) 198 { 199 struct qed_hw_info *p_info = &p_hwfn->hw_info; 200 enum qed_pci_personality personality; 201 enum dcbx_protocol_type id; 202 char *name; 203 int i; 204 205 for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) { 206 id = qed_dcbx_app_update[i].id; 207 208 if (type != id) 209 continue; 210 211 personality = qed_dcbx_app_update[i].personality; 212 name = qed_dcbx_app_update[i].name; 213 214 qed_dcbx_set_params(p_data, p_info, enable, update, 215 prio, tc, type, personality); 216 } 217 } 218 219 static bool 220 qed_dcbx_get_app_protocol_type(struct qed_hwfn *p_hwfn, 221 u32 app_prio_bitmap, 222 u16 id, enum dcbx_protocol_type *type, bool ieee) 223 { 224 if (qed_dcbx_fcoe_tlv(app_prio_bitmap, id, ieee)) { 225 *type = DCBX_PROTOCOL_FCOE; 226 } else if (qed_dcbx_roce_tlv(app_prio_bitmap, id, ieee)) { 227 *type = DCBX_PROTOCOL_ROCE; 228 } else if (qed_dcbx_iscsi_tlv(app_prio_bitmap, id, ieee)) { 229 *type = DCBX_PROTOCOL_ISCSI; 230 } else if (qed_dcbx_default_tlv(app_prio_bitmap, id, ieee)) { 231 *type = DCBX_PROTOCOL_ETH; 232 } else if (qed_dcbx_roce_v2_tlv(app_prio_bitmap, id, ieee)) { 233 *type = DCBX_PROTOCOL_ROCE_V2; 234 } else { 235 *type = DCBX_MAX_PROTOCOL_TYPE; 236 DP_ERR(p_hwfn, 237 "No action required, App TLV id = 0x%x app_prio_bitmap = 0x%x\n", 238 id, app_prio_bitmap); 239 return false; 240 } 241 242 return true; 243 } 244 245 /* Parse app TLV's to update TC information in hw_info structure for 246 * reconfiguring QM. Get protocol specific data for PF update ramrod command. 247 */ 248 static int 249 qed_dcbx_process_tlv(struct qed_hwfn *p_hwfn, 250 struct qed_dcbx_results *p_data, 251 struct dcbx_app_priority_entry *p_tbl, 252 u32 pri_tc_tbl, int count, u8 dcbx_version) 253 { 254 u8 tc, priority_map; 255 enum dcbx_protocol_type type; 256 bool enable, ieee; 257 u16 protocol_id; 258 int priority; 259 int i; 260 261 DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Num APP entries = %d\n", count); 262 263 ieee = (dcbx_version == DCBX_CONFIG_VERSION_IEEE); 264 /* Parse APP TLV */ 265 for (i = 0; i < count; i++) { 266 protocol_id = QED_MFW_GET_FIELD(p_tbl[i].entry, 267 DCBX_APP_PROTOCOL_ID); 268 priority_map = QED_MFW_GET_FIELD(p_tbl[i].entry, 269 DCBX_APP_PRI_MAP); 270 priority = ffs(priority_map) - 1; 271 if (priority < 0) { 272 DP_ERR(p_hwfn, "Invalid priority\n"); 273 return -EINVAL; 274 } 275 276 tc = QED_DCBX_PRIO2TC(pri_tc_tbl, priority); 277 if (qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry, 278 protocol_id, &type, ieee)) { 279 /* ETH always have the enable bit reset, as it gets 280 * vlan information per packet. For other protocols, 281 * should be set according to the dcbx_enabled 282 * indication, but we only got here if there was an 283 * app tlv for the protocol, so dcbx must be enabled. 284 */ 285 enable = !(type == DCBX_PROTOCOL_ETH); 286 287 qed_dcbx_update_app_info(p_data, p_hwfn, enable, true, 288 priority, tc, type); 289 } 290 } 291 292 /* If RoCE-V2 TLV is not detected, driver need to use RoCE app 293 * data for RoCE-v2 not the default app data. 294 */ 295 if (!p_data->arr[DCBX_PROTOCOL_ROCE_V2].update && 296 p_data->arr[DCBX_PROTOCOL_ROCE].update) { 297 tc = p_data->arr[DCBX_PROTOCOL_ROCE].tc; 298 priority = p_data->arr[DCBX_PROTOCOL_ROCE].priority; 299 qed_dcbx_update_app_info(p_data, p_hwfn, true, true, 300 priority, tc, DCBX_PROTOCOL_ROCE_V2); 301 } 302 303 /* Update ramrod protocol data and hw_info fields 304 * with default info when corresponding APP TLV's are not detected. 305 * The enabled field has a different logic for ethernet as only for 306 * ethernet dcb should disabled by default, as the information arrives 307 * from the OS (unless an explicit app tlv was present). 308 */ 309 tc = p_data->arr[DCBX_PROTOCOL_ETH].tc; 310 priority = p_data->arr[DCBX_PROTOCOL_ETH].priority; 311 for (type = 0; type < DCBX_MAX_PROTOCOL_TYPE; type++) { 312 if (p_data->arr[type].update) 313 continue; 314 315 enable = !(type == DCBX_PROTOCOL_ETH); 316 qed_dcbx_update_app_info(p_data, p_hwfn, enable, true, 317 priority, tc, type); 318 } 319 320 return 0; 321 } 322 323 /* Parse app TLV's to update TC information in hw_info structure for 324 * reconfiguring QM. Get protocol specific data for PF update ramrod command. 325 */ 326 static int qed_dcbx_process_mib_info(struct qed_hwfn *p_hwfn) 327 { 328 struct dcbx_app_priority_feature *p_app; 329 struct dcbx_app_priority_entry *p_tbl; 330 struct qed_dcbx_results data = { 0 }; 331 struct dcbx_ets_feature *p_ets; 332 struct qed_hw_info *p_info; 333 u32 pri_tc_tbl, flags; 334 u8 dcbx_version; 335 int num_entries; 336 int rc = 0; 337 338 flags = p_hwfn->p_dcbx_info->operational.flags; 339 dcbx_version = QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION); 340 341 p_app = &p_hwfn->p_dcbx_info->operational.features.app; 342 p_tbl = p_app->app_pri_tbl; 343 344 p_ets = &p_hwfn->p_dcbx_info->operational.features.ets; 345 pri_tc_tbl = p_ets->pri_tc_tbl[0]; 346 347 p_info = &p_hwfn->hw_info; 348 num_entries = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_NUM_ENTRIES); 349 350 rc = qed_dcbx_process_tlv(p_hwfn, &data, p_tbl, pri_tc_tbl, 351 num_entries, dcbx_version); 352 if (rc) 353 return rc; 354 355 p_info->num_tc = QED_MFW_GET_FIELD(p_ets->flags, DCBX_ETS_MAX_TCS); 356 data.pf_id = p_hwfn->rel_pf_id; 357 data.dcbx_enabled = !!dcbx_version; 358 359 qed_dcbx_dp_protocol(p_hwfn, &data); 360 361 memcpy(&p_hwfn->p_dcbx_info->results, &data, 362 sizeof(struct qed_dcbx_results)); 363 364 return 0; 365 } 366 367 static int 368 qed_dcbx_copy_mib(struct qed_hwfn *p_hwfn, 369 struct qed_ptt *p_ptt, 370 struct qed_dcbx_mib_meta_data *p_data, 371 enum qed_mib_read_type type) 372 { 373 u32 prefix_seq_num, suffix_seq_num; 374 int read_count = 0; 375 int rc = 0; 376 377 /* The data is considered to be valid only if both sequence numbers are 378 * the same. 379 */ 380 do { 381 if (type == QED_DCBX_REMOTE_LLDP_MIB) { 382 qed_memcpy_from(p_hwfn, p_ptt, p_data->lldp_remote, 383 p_data->addr, p_data->size); 384 prefix_seq_num = p_data->lldp_remote->prefix_seq_num; 385 suffix_seq_num = p_data->lldp_remote->suffix_seq_num; 386 } else { 387 qed_memcpy_from(p_hwfn, p_ptt, p_data->mib, 388 p_data->addr, p_data->size); 389 prefix_seq_num = p_data->mib->prefix_seq_num; 390 suffix_seq_num = p_data->mib->suffix_seq_num; 391 } 392 read_count++; 393 394 DP_VERBOSE(p_hwfn, 395 QED_MSG_DCB, 396 "mib type = %d, try count = %d prefix seq num = %d suffix seq num = %d\n", 397 type, read_count, prefix_seq_num, suffix_seq_num); 398 } while ((prefix_seq_num != suffix_seq_num) && 399 (read_count < QED_DCBX_MAX_MIB_READ_TRY)); 400 401 if (read_count >= QED_DCBX_MAX_MIB_READ_TRY) { 402 DP_ERR(p_hwfn, 403 "MIB read err, mib type = %d, try count = %d prefix seq num = %d suffix seq num = %d\n", 404 type, read_count, prefix_seq_num, suffix_seq_num); 405 rc = -EIO; 406 } 407 408 return rc; 409 } 410 411 #ifdef CONFIG_DCB 412 static void 413 qed_dcbx_get_priority_info(struct qed_hwfn *p_hwfn, 414 struct qed_dcbx_app_prio *p_prio, 415 struct qed_dcbx_results *p_results) 416 { 417 u8 val; 418 419 p_prio->roce = QED_DCBX_INVALID_PRIORITY; 420 p_prio->roce_v2 = QED_DCBX_INVALID_PRIORITY; 421 p_prio->iscsi = QED_DCBX_INVALID_PRIORITY; 422 p_prio->fcoe = QED_DCBX_INVALID_PRIORITY; 423 424 if (p_results->arr[DCBX_PROTOCOL_ROCE].update && 425 p_results->arr[DCBX_PROTOCOL_ROCE].enable) 426 p_prio->roce = p_results->arr[DCBX_PROTOCOL_ROCE].priority; 427 428 if (p_results->arr[DCBX_PROTOCOL_ROCE_V2].update && 429 p_results->arr[DCBX_PROTOCOL_ROCE_V2].enable) { 430 val = p_results->arr[DCBX_PROTOCOL_ROCE_V2].priority; 431 p_prio->roce_v2 = val; 432 } 433 434 if (p_results->arr[DCBX_PROTOCOL_ISCSI].update && 435 p_results->arr[DCBX_PROTOCOL_ISCSI].enable) 436 p_prio->iscsi = p_results->arr[DCBX_PROTOCOL_ISCSI].priority; 437 438 if (p_results->arr[DCBX_PROTOCOL_FCOE].update && 439 p_results->arr[DCBX_PROTOCOL_FCOE].enable) 440 p_prio->fcoe = p_results->arr[DCBX_PROTOCOL_FCOE].priority; 441 442 if (p_results->arr[DCBX_PROTOCOL_ETH].update && 443 p_results->arr[DCBX_PROTOCOL_ETH].enable) 444 p_prio->eth = p_results->arr[DCBX_PROTOCOL_ETH].priority; 445 446 DP_VERBOSE(p_hwfn, QED_MSG_DCB, 447 "Priorities: iscsi %d, roce %d, roce v2 %d, fcoe %d, eth %d\n", 448 p_prio->iscsi, p_prio->roce, p_prio->roce_v2, p_prio->fcoe, 449 p_prio->eth); 450 } 451 452 static void 453 qed_dcbx_get_app_data(struct qed_hwfn *p_hwfn, 454 struct dcbx_app_priority_feature *p_app, 455 struct dcbx_app_priority_entry *p_tbl, 456 struct qed_dcbx_params *p_params, bool ieee) 457 { 458 struct qed_app_entry *entry; 459 u8 pri_map; 460 int i; 461 462 p_params->app_willing = QED_MFW_GET_FIELD(p_app->flags, 463 DCBX_APP_WILLING); 464 p_params->app_valid = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_ENABLED); 465 p_params->app_error = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_ERROR); 466 p_params->num_app_entries = QED_MFW_GET_FIELD(p_app->flags, 467 DCBX_APP_NUM_ENTRIES); 468 for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) { 469 entry = &p_params->app_entry[i]; 470 if (ieee) { 471 u8 sf_ieee; 472 u32 val; 473 474 sf_ieee = QED_MFW_GET_FIELD(p_tbl[i].entry, 475 DCBX_APP_SF_IEEE); 476 switch (sf_ieee) { 477 case DCBX_APP_SF_IEEE_RESERVED: 478 /* Old MFW */ 479 val = QED_MFW_GET_FIELD(p_tbl[i].entry, 480 DCBX_APP_SF); 481 entry->sf_ieee = val ? 482 QED_DCBX_SF_IEEE_TCP_UDP_PORT : 483 QED_DCBX_SF_IEEE_ETHTYPE; 484 break; 485 case DCBX_APP_SF_IEEE_ETHTYPE: 486 entry->sf_ieee = QED_DCBX_SF_IEEE_ETHTYPE; 487 break; 488 case DCBX_APP_SF_IEEE_TCP_PORT: 489 entry->sf_ieee = QED_DCBX_SF_IEEE_TCP_PORT; 490 break; 491 case DCBX_APP_SF_IEEE_UDP_PORT: 492 entry->sf_ieee = QED_DCBX_SF_IEEE_UDP_PORT; 493 break; 494 case DCBX_APP_SF_IEEE_TCP_UDP_PORT: 495 entry->sf_ieee = QED_DCBX_SF_IEEE_TCP_UDP_PORT; 496 break; 497 } 498 } else { 499 entry->ethtype = !(QED_MFW_GET_FIELD(p_tbl[i].entry, 500 DCBX_APP_SF)); 501 } 502 503 pri_map = QED_MFW_GET_FIELD(p_tbl[i].entry, DCBX_APP_PRI_MAP); 504 entry->prio = ffs(pri_map) - 1; 505 entry->proto_id = QED_MFW_GET_FIELD(p_tbl[i].entry, 506 DCBX_APP_PROTOCOL_ID); 507 qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry, 508 entry->proto_id, 509 &entry->proto_type, ieee); 510 } 511 512 DP_VERBOSE(p_hwfn, QED_MSG_DCB, 513 "APP params: willing %d, valid %d error = %d\n", 514 p_params->app_willing, p_params->app_valid, 515 p_params->app_error); 516 } 517 518 static void 519 qed_dcbx_get_pfc_data(struct qed_hwfn *p_hwfn, 520 u32 pfc, struct qed_dcbx_params *p_params) 521 { 522 u8 pfc_map; 523 524 p_params->pfc.willing = QED_MFW_GET_FIELD(pfc, DCBX_PFC_WILLING); 525 p_params->pfc.max_tc = QED_MFW_GET_FIELD(pfc, DCBX_PFC_CAPS); 526 p_params->pfc.enabled = QED_MFW_GET_FIELD(pfc, DCBX_PFC_ENABLED); 527 pfc_map = QED_MFW_GET_FIELD(pfc, DCBX_PFC_PRI_EN_BITMAP); 528 p_params->pfc.prio[0] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_0); 529 p_params->pfc.prio[1] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_1); 530 p_params->pfc.prio[2] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_2); 531 p_params->pfc.prio[3] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_3); 532 p_params->pfc.prio[4] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_4); 533 p_params->pfc.prio[5] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_5); 534 p_params->pfc.prio[6] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_6); 535 p_params->pfc.prio[7] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_7); 536 537 DP_VERBOSE(p_hwfn, QED_MSG_DCB, 538 "PFC params: willing %d, pfc_bitmap %d\n", 539 p_params->pfc.willing, pfc_map); 540 } 541 542 static void 543 qed_dcbx_get_ets_data(struct qed_hwfn *p_hwfn, 544 struct dcbx_ets_feature *p_ets, 545 struct qed_dcbx_params *p_params) 546 { 547 u32 bw_map[2], tsa_map[2], pri_map; 548 int i; 549 550 p_params->ets_willing = QED_MFW_GET_FIELD(p_ets->flags, 551 DCBX_ETS_WILLING); 552 p_params->ets_enabled = QED_MFW_GET_FIELD(p_ets->flags, 553 DCBX_ETS_ENABLED); 554 p_params->ets_cbs = QED_MFW_GET_FIELD(p_ets->flags, DCBX_ETS_CBS); 555 p_params->max_ets_tc = QED_MFW_GET_FIELD(p_ets->flags, 556 DCBX_ETS_MAX_TCS); 557 DP_VERBOSE(p_hwfn, QED_MSG_DCB, 558 "ETS params: willing %d, ets_cbs %d pri_tc_tbl_0 %x max_ets_tc %d\n", 559 p_params->ets_willing, 560 p_params->ets_cbs, 561 p_ets->pri_tc_tbl[0], p_params->max_ets_tc); 562 563 /* 8 bit tsa and bw data corresponding to each of the 8 TC's are 564 * encoded in a type u32 array of size 2. 565 */ 566 bw_map[0] = be32_to_cpu(p_ets->tc_bw_tbl[0]); 567 bw_map[1] = be32_to_cpu(p_ets->tc_bw_tbl[1]); 568 tsa_map[0] = be32_to_cpu(p_ets->tc_tsa_tbl[0]); 569 tsa_map[1] = be32_to_cpu(p_ets->tc_tsa_tbl[1]); 570 pri_map = p_ets->pri_tc_tbl[0]; 571 for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) { 572 p_params->ets_tc_bw_tbl[i] = ((u8 *)bw_map)[i]; 573 p_params->ets_tc_tsa_tbl[i] = ((u8 *)tsa_map)[i]; 574 p_params->ets_pri_tc_tbl[i] = QED_DCBX_PRIO2TC(pri_map, i); 575 DP_VERBOSE(p_hwfn, QED_MSG_DCB, 576 "elem %d bw_tbl %x tsa_tbl %x\n", 577 i, p_params->ets_tc_bw_tbl[i], 578 p_params->ets_tc_tsa_tbl[i]); 579 } 580 } 581 582 static void 583 qed_dcbx_get_common_params(struct qed_hwfn *p_hwfn, 584 struct dcbx_app_priority_feature *p_app, 585 struct dcbx_app_priority_entry *p_tbl, 586 struct dcbx_ets_feature *p_ets, 587 u32 pfc, struct qed_dcbx_params *p_params, bool ieee) 588 { 589 qed_dcbx_get_app_data(p_hwfn, p_app, p_tbl, p_params, ieee); 590 qed_dcbx_get_ets_data(p_hwfn, p_ets, p_params); 591 qed_dcbx_get_pfc_data(p_hwfn, pfc, p_params); 592 } 593 594 static void 595 qed_dcbx_get_local_params(struct qed_hwfn *p_hwfn, 596 struct qed_ptt *p_ptt, struct qed_dcbx_get *params) 597 { 598 struct dcbx_features *p_feat; 599 600 p_feat = &p_hwfn->p_dcbx_info->local_admin.features; 601 qed_dcbx_get_common_params(p_hwfn, &p_feat->app, 602 p_feat->app.app_pri_tbl, &p_feat->ets, 603 p_feat->pfc, ¶ms->local.params, false); 604 params->local.valid = true; 605 } 606 607 static void 608 qed_dcbx_get_remote_params(struct qed_hwfn *p_hwfn, 609 struct qed_ptt *p_ptt, struct qed_dcbx_get *params) 610 { 611 struct dcbx_features *p_feat; 612 613 p_feat = &p_hwfn->p_dcbx_info->remote.features; 614 qed_dcbx_get_common_params(p_hwfn, &p_feat->app, 615 p_feat->app.app_pri_tbl, &p_feat->ets, 616 p_feat->pfc, ¶ms->remote.params, false); 617 params->remote.valid = true; 618 } 619 620 static void 621 qed_dcbx_get_operational_params(struct qed_hwfn *p_hwfn, 622 struct qed_ptt *p_ptt, 623 struct qed_dcbx_get *params) 624 { 625 struct qed_dcbx_operational_params *p_operational; 626 struct qed_dcbx_results *p_results; 627 struct dcbx_features *p_feat; 628 bool enabled, err; 629 u32 flags; 630 bool val; 631 632 flags = p_hwfn->p_dcbx_info->operational.flags; 633 634 /* If DCBx version is non zero, then negotiation 635 * was successfuly performed 636 */ 637 p_operational = ¶ms->operational; 638 enabled = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) != 639 DCBX_CONFIG_VERSION_DISABLED); 640 if (!enabled) { 641 p_operational->enabled = enabled; 642 p_operational->valid = false; 643 return; 644 } 645 646 p_feat = &p_hwfn->p_dcbx_info->operational.features; 647 p_results = &p_hwfn->p_dcbx_info->results; 648 649 val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) == 650 DCBX_CONFIG_VERSION_IEEE); 651 p_operational->ieee = val; 652 val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) == 653 DCBX_CONFIG_VERSION_CEE); 654 p_operational->cee = val; 655 656 DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Version support: ieee %d, cee %d\n", 657 p_operational->ieee, p_operational->cee); 658 659 qed_dcbx_get_common_params(p_hwfn, &p_feat->app, 660 p_feat->app.app_pri_tbl, &p_feat->ets, 661 p_feat->pfc, ¶ms->operational.params, 662 p_operational->ieee); 663 qed_dcbx_get_priority_info(p_hwfn, &p_operational->app_prio, p_results); 664 err = QED_MFW_GET_FIELD(p_feat->app.flags, DCBX_APP_ERROR); 665 p_operational->err = err; 666 p_operational->enabled = enabled; 667 p_operational->valid = true; 668 } 669 670 static void 671 qed_dcbx_get_local_lldp_params(struct qed_hwfn *p_hwfn, 672 struct qed_ptt *p_ptt, 673 struct qed_dcbx_get *params) 674 { 675 struct lldp_config_params_s *p_local; 676 677 p_local = &p_hwfn->p_dcbx_info->lldp_local[LLDP_NEAREST_BRIDGE]; 678 679 memcpy(params->lldp_local.local_chassis_id, p_local->local_chassis_id, 680 ARRAY_SIZE(p_local->local_chassis_id)); 681 memcpy(params->lldp_local.local_port_id, p_local->local_port_id, 682 ARRAY_SIZE(p_local->local_port_id)); 683 } 684 685 static void 686 qed_dcbx_get_remote_lldp_params(struct qed_hwfn *p_hwfn, 687 struct qed_ptt *p_ptt, 688 struct qed_dcbx_get *params) 689 { 690 struct lldp_status_params_s *p_remote; 691 692 p_remote = &p_hwfn->p_dcbx_info->lldp_remote[LLDP_NEAREST_BRIDGE]; 693 694 memcpy(params->lldp_remote.peer_chassis_id, p_remote->peer_chassis_id, 695 ARRAY_SIZE(p_remote->peer_chassis_id)); 696 memcpy(params->lldp_remote.peer_port_id, p_remote->peer_port_id, 697 ARRAY_SIZE(p_remote->peer_port_id)); 698 } 699 700 static int 701 qed_dcbx_get_params(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, 702 struct qed_dcbx_get *p_params, 703 enum qed_mib_read_type type) 704 { 705 switch (type) { 706 case QED_DCBX_REMOTE_MIB: 707 qed_dcbx_get_remote_params(p_hwfn, p_ptt, p_params); 708 break; 709 case QED_DCBX_LOCAL_MIB: 710 qed_dcbx_get_local_params(p_hwfn, p_ptt, p_params); 711 break; 712 case QED_DCBX_OPERATIONAL_MIB: 713 qed_dcbx_get_operational_params(p_hwfn, p_ptt, p_params); 714 break; 715 case QED_DCBX_REMOTE_LLDP_MIB: 716 qed_dcbx_get_remote_lldp_params(p_hwfn, p_ptt, p_params); 717 break; 718 case QED_DCBX_LOCAL_LLDP_MIB: 719 qed_dcbx_get_local_lldp_params(p_hwfn, p_ptt, p_params); 720 break; 721 default: 722 DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type); 723 return -EINVAL; 724 } 725 726 return 0; 727 } 728 #endif 729 730 static int 731 qed_dcbx_read_local_lldp_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) 732 { 733 struct qed_dcbx_mib_meta_data data; 734 int rc = 0; 735 736 memset(&data, 0, sizeof(data)); 737 data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port, 738 lldp_config_params); 739 data.lldp_local = p_hwfn->p_dcbx_info->lldp_local; 740 data.size = sizeof(struct lldp_config_params_s); 741 qed_memcpy_from(p_hwfn, p_ptt, data.lldp_local, data.addr, data.size); 742 743 return rc; 744 } 745 746 static int 747 qed_dcbx_read_remote_lldp_mib(struct qed_hwfn *p_hwfn, 748 struct qed_ptt *p_ptt, 749 enum qed_mib_read_type type) 750 { 751 struct qed_dcbx_mib_meta_data data; 752 int rc = 0; 753 754 memset(&data, 0, sizeof(data)); 755 data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port, 756 lldp_status_params); 757 data.lldp_remote = p_hwfn->p_dcbx_info->lldp_remote; 758 data.size = sizeof(struct lldp_status_params_s); 759 rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type); 760 761 return rc; 762 } 763 764 static int 765 qed_dcbx_read_operational_mib(struct qed_hwfn *p_hwfn, 766 struct qed_ptt *p_ptt, 767 enum qed_mib_read_type type) 768 { 769 struct qed_dcbx_mib_meta_data data; 770 int rc = 0; 771 772 memset(&data, 0, sizeof(data)); 773 data.addr = p_hwfn->mcp_info->port_addr + 774 offsetof(struct public_port, operational_dcbx_mib); 775 data.mib = &p_hwfn->p_dcbx_info->operational; 776 data.size = sizeof(struct dcbx_mib); 777 rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type); 778 779 return rc; 780 } 781 782 static int 783 qed_dcbx_read_remote_mib(struct qed_hwfn *p_hwfn, 784 struct qed_ptt *p_ptt, enum qed_mib_read_type type) 785 { 786 struct qed_dcbx_mib_meta_data data; 787 int rc = 0; 788 789 memset(&data, 0, sizeof(data)); 790 data.addr = p_hwfn->mcp_info->port_addr + 791 offsetof(struct public_port, remote_dcbx_mib); 792 data.mib = &p_hwfn->p_dcbx_info->remote; 793 data.size = sizeof(struct dcbx_mib); 794 rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type); 795 796 return rc; 797 } 798 799 static int 800 qed_dcbx_read_local_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) 801 { 802 struct qed_dcbx_mib_meta_data data; 803 int rc = 0; 804 805 memset(&data, 0, sizeof(data)); 806 data.addr = p_hwfn->mcp_info->port_addr + 807 offsetof(struct public_port, local_admin_dcbx_mib); 808 data.local_admin = &p_hwfn->p_dcbx_info->local_admin; 809 data.size = sizeof(struct dcbx_local_params); 810 qed_memcpy_from(p_hwfn, p_ptt, data.local_admin, data.addr, data.size); 811 812 return rc; 813 } 814 815 static int qed_dcbx_read_mib(struct qed_hwfn *p_hwfn, 816 struct qed_ptt *p_ptt, enum qed_mib_read_type type) 817 { 818 int rc = -EINVAL; 819 820 switch (type) { 821 case QED_DCBX_OPERATIONAL_MIB: 822 rc = qed_dcbx_read_operational_mib(p_hwfn, p_ptt, type); 823 break; 824 case QED_DCBX_REMOTE_MIB: 825 rc = qed_dcbx_read_remote_mib(p_hwfn, p_ptt, type); 826 break; 827 case QED_DCBX_LOCAL_MIB: 828 rc = qed_dcbx_read_local_mib(p_hwfn, p_ptt); 829 break; 830 case QED_DCBX_REMOTE_LLDP_MIB: 831 rc = qed_dcbx_read_remote_lldp_mib(p_hwfn, p_ptt, type); 832 break; 833 case QED_DCBX_LOCAL_LLDP_MIB: 834 rc = qed_dcbx_read_local_lldp_mib(p_hwfn, p_ptt); 835 break; 836 default: 837 DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type); 838 } 839 840 return rc; 841 } 842 843 /* Read updated MIB. 844 * Reconfigure QM and invoke PF update ramrod command if operational MIB 845 * change is detected. 846 */ 847 int 848 qed_dcbx_mib_update_event(struct qed_hwfn *p_hwfn, 849 struct qed_ptt *p_ptt, enum qed_mib_read_type type) 850 { 851 int rc = 0; 852 853 rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type); 854 if (rc) 855 return rc; 856 857 if (type == QED_DCBX_OPERATIONAL_MIB) { 858 rc = qed_dcbx_process_mib_info(p_hwfn); 859 if (!rc) { 860 /* reconfigure tcs of QM queues according 861 * to negotiation results 862 */ 863 qed_qm_reconf(p_hwfn, p_ptt); 864 865 /* update storm FW with negotiation results */ 866 qed_sp_pf_update(p_hwfn); 867 } 868 } 869 870 return rc; 871 } 872 873 int qed_dcbx_info_alloc(struct qed_hwfn *p_hwfn) 874 { 875 int rc = 0; 876 877 p_hwfn->p_dcbx_info = kzalloc(sizeof(*p_hwfn->p_dcbx_info), GFP_KERNEL); 878 if (!p_hwfn->p_dcbx_info) 879 rc = -ENOMEM; 880 881 return rc; 882 } 883 884 void qed_dcbx_info_free(struct qed_hwfn *p_hwfn, 885 struct qed_dcbx_info *p_dcbx_info) 886 { 887 kfree(p_hwfn->p_dcbx_info); 888 } 889 890 static void qed_dcbx_update_protocol_data(struct protocol_dcb_data *p_data, 891 struct qed_dcbx_results *p_src, 892 enum dcbx_protocol_type type) 893 { 894 p_data->dcb_enable_flag = p_src->arr[type].enable; 895 p_data->dcb_priority = p_src->arr[type].priority; 896 p_data->dcb_tc = p_src->arr[type].tc; 897 } 898 899 /* Set pf update ramrod command params */ 900 void qed_dcbx_set_pf_update_params(struct qed_dcbx_results *p_src, 901 struct pf_update_ramrod_data *p_dest) 902 { 903 struct protocol_dcb_data *p_dcb_data; 904 bool update_flag = false; 905 906 p_dest->pf_id = p_src->pf_id; 907 908 update_flag = p_src->arr[DCBX_PROTOCOL_FCOE].update; 909 p_dest->update_fcoe_dcb_data_flag = update_flag; 910 911 update_flag = p_src->arr[DCBX_PROTOCOL_ROCE].update; 912 p_dest->update_roce_dcb_data_flag = update_flag; 913 update_flag = p_src->arr[DCBX_PROTOCOL_ROCE_V2].update; 914 p_dest->update_roce_dcb_data_flag = update_flag; 915 916 update_flag = p_src->arr[DCBX_PROTOCOL_ISCSI].update; 917 p_dest->update_iscsi_dcb_data_flag = update_flag; 918 update_flag = p_src->arr[DCBX_PROTOCOL_ETH].update; 919 p_dest->update_eth_dcb_data_flag = update_flag; 920 921 p_dcb_data = &p_dest->fcoe_dcb_data; 922 qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_FCOE); 923 p_dcb_data = &p_dest->roce_dcb_data; 924 925 if (p_src->arr[DCBX_PROTOCOL_ROCE].update) 926 qed_dcbx_update_protocol_data(p_dcb_data, p_src, 927 DCBX_PROTOCOL_ROCE); 928 if (p_src->arr[DCBX_PROTOCOL_ROCE_V2].update) 929 qed_dcbx_update_protocol_data(p_dcb_data, p_src, 930 DCBX_PROTOCOL_ROCE_V2); 931 932 p_dcb_data = &p_dest->iscsi_dcb_data; 933 qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ISCSI); 934 p_dcb_data = &p_dest->eth_dcb_data; 935 qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ETH); 936 } 937 938 #ifdef CONFIG_DCB 939 static int qed_dcbx_query_params(struct qed_hwfn *p_hwfn, 940 struct qed_dcbx_get *p_get, 941 enum qed_mib_read_type type) 942 { 943 struct qed_ptt *p_ptt; 944 int rc; 945 946 if (IS_VF(p_hwfn->cdev)) 947 return -EINVAL; 948 949 p_ptt = qed_ptt_acquire(p_hwfn); 950 if (!p_ptt) 951 return -EBUSY; 952 953 rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type); 954 if (rc) 955 goto out; 956 957 rc = qed_dcbx_get_params(p_hwfn, p_ptt, p_get, type); 958 959 out: 960 qed_ptt_release(p_hwfn, p_ptt); 961 return rc; 962 } 963 964 static void 965 qed_dcbx_set_pfc_data(struct qed_hwfn *p_hwfn, 966 u32 *pfc, struct qed_dcbx_params *p_params) 967 { 968 u8 pfc_map = 0; 969 int i; 970 971 if (p_params->pfc.willing) 972 *pfc |= DCBX_PFC_WILLING_MASK; 973 else 974 *pfc &= ~DCBX_PFC_WILLING_MASK; 975 976 if (p_params->pfc.enabled) 977 *pfc |= DCBX_PFC_ENABLED_MASK; 978 else 979 *pfc &= ~DCBX_PFC_ENABLED_MASK; 980 981 *pfc &= ~DCBX_PFC_CAPS_MASK; 982 *pfc |= (u32)p_params->pfc.max_tc << DCBX_PFC_CAPS_SHIFT; 983 984 for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) 985 if (p_params->pfc.prio[i]) 986 pfc_map |= BIT(i); 987 988 *pfc &= ~DCBX_PFC_PRI_EN_BITMAP_MASK; 989 *pfc |= (pfc_map << DCBX_PFC_PRI_EN_BITMAP_SHIFT); 990 991 DP_VERBOSE(p_hwfn, QED_MSG_DCB, "pfc = 0x%x\n", *pfc); 992 } 993 994 static void 995 qed_dcbx_set_ets_data(struct qed_hwfn *p_hwfn, 996 struct dcbx_ets_feature *p_ets, 997 struct qed_dcbx_params *p_params) 998 { 999 u8 *bw_map, *tsa_map; 1000 u32 val; 1001 int i; 1002 1003 if (p_params->ets_willing) 1004 p_ets->flags |= DCBX_ETS_WILLING_MASK; 1005 else 1006 p_ets->flags &= ~DCBX_ETS_WILLING_MASK; 1007 1008 if (p_params->ets_cbs) 1009 p_ets->flags |= DCBX_ETS_CBS_MASK; 1010 else 1011 p_ets->flags &= ~DCBX_ETS_CBS_MASK; 1012 1013 if (p_params->ets_enabled) 1014 p_ets->flags |= DCBX_ETS_ENABLED_MASK; 1015 else 1016 p_ets->flags &= ~DCBX_ETS_ENABLED_MASK; 1017 1018 p_ets->flags &= ~DCBX_ETS_MAX_TCS_MASK; 1019 p_ets->flags |= (u32)p_params->max_ets_tc << DCBX_ETS_MAX_TCS_SHIFT; 1020 1021 bw_map = (u8 *)&p_ets->tc_bw_tbl[0]; 1022 tsa_map = (u8 *)&p_ets->tc_tsa_tbl[0]; 1023 p_ets->pri_tc_tbl[0] = 0; 1024 for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) { 1025 bw_map[i] = p_params->ets_tc_bw_tbl[i]; 1026 tsa_map[i] = p_params->ets_tc_tsa_tbl[i]; 1027 /* Copy the priority value to the corresponding 4 bits in the 1028 * traffic class table. 1029 */ 1030 val = (((u32)p_params->ets_pri_tc_tbl[i]) << ((7 - i) * 4)); 1031 p_ets->pri_tc_tbl[0] |= val; 1032 } 1033 for (i = 0; i < 2; i++) { 1034 p_ets->tc_bw_tbl[i] = cpu_to_be32(p_ets->tc_bw_tbl[i]); 1035 p_ets->tc_tsa_tbl[i] = cpu_to_be32(p_ets->tc_tsa_tbl[i]); 1036 } 1037 } 1038 1039 static void 1040 qed_dcbx_set_app_data(struct qed_hwfn *p_hwfn, 1041 struct dcbx_app_priority_feature *p_app, 1042 struct qed_dcbx_params *p_params, bool ieee) 1043 { 1044 u32 *entry; 1045 int i; 1046 1047 if (p_params->app_willing) 1048 p_app->flags |= DCBX_APP_WILLING_MASK; 1049 else 1050 p_app->flags &= ~DCBX_APP_WILLING_MASK; 1051 1052 if (p_params->app_valid) 1053 p_app->flags |= DCBX_APP_ENABLED_MASK; 1054 else 1055 p_app->flags &= ~DCBX_APP_ENABLED_MASK; 1056 1057 p_app->flags &= ~DCBX_APP_NUM_ENTRIES_MASK; 1058 p_app->flags |= (u32)p_params->num_app_entries << 1059 DCBX_APP_NUM_ENTRIES_SHIFT; 1060 1061 for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) { 1062 entry = &p_app->app_pri_tbl[i].entry; 1063 *entry = 0; 1064 if (ieee) { 1065 *entry &= ~(DCBX_APP_SF_IEEE_MASK | DCBX_APP_SF_MASK); 1066 switch (p_params->app_entry[i].sf_ieee) { 1067 case QED_DCBX_SF_IEEE_ETHTYPE: 1068 *entry |= ((u32)DCBX_APP_SF_IEEE_ETHTYPE << 1069 DCBX_APP_SF_IEEE_SHIFT); 1070 *entry |= ((u32)DCBX_APP_SF_ETHTYPE << 1071 DCBX_APP_SF_SHIFT); 1072 break; 1073 case QED_DCBX_SF_IEEE_TCP_PORT: 1074 *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_PORT << 1075 DCBX_APP_SF_IEEE_SHIFT); 1076 *entry |= ((u32)DCBX_APP_SF_PORT << 1077 DCBX_APP_SF_SHIFT); 1078 break; 1079 case QED_DCBX_SF_IEEE_UDP_PORT: 1080 *entry |= ((u32)DCBX_APP_SF_IEEE_UDP_PORT << 1081 DCBX_APP_SF_IEEE_SHIFT); 1082 *entry |= ((u32)DCBX_APP_SF_PORT << 1083 DCBX_APP_SF_SHIFT); 1084 break; 1085 case QED_DCBX_SF_IEEE_TCP_UDP_PORT: 1086 *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_UDP_PORT << 1087 DCBX_APP_SF_IEEE_SHIFT); 1088 *entry |= ((u32)DCBX_APP_SF_PORT << 1089 DCBX_APP_SF_SHIFT); 1090 break; 1091 } 1092 } else { 1093 *entry &= ~DCBX_APP_SF_MASK; 1094 if (p_params->app_entry[i].ethtype) 1095 *entry |= ((u32)DCBX_APP_SF_ETHTYPE << 1096 DCBX_APP_SF_SHIFT); 1097 else 1098 *entry |= ((u32)DCBX_APP_SF_PORT << 1099 DCBX_APP_SF_SHIFT); 1100 } 1101 1102 *entry &= ~DCBX_APP_PROTOCOL_ID_MASK; 1103 *entry |= ((u32)p_params->app_entry[i].proto_id << 1104 DCBX_APP_PROTOCOL_ID_SHIFT); 1105 *entry &= ~DCBX_APP_PRI_MAP_MASK; 1106 *entry |= ((u32)(p_params->app_entry[i].prio) << 1107 DCBX_APP_PRI_MAP_SHIFT); 1108 } 1109 } 1110 1111 static void 1112 qed_dcbx_set_local_params(struct qed_hwfn *p_hwfn, 1113 struct dcbx_local_params *local_admin, 1114 struct qed_dcbx_set *params) 1115 { 1116 bool ieee = false; 1117 1118 local_admin->flags = 0; 1119 memcpy(&local_admin->features, 1120 &p_hwfn->p_dcbx_info->operational.features, 1121 sizeof(local_admin->features)); 1122 1123 if (params->enabled) { 1124 local_admin->config = params->ver_num; 1125 ieee = !!(params->ver_num & DCBX_CONFIG_VERSION_IEEE); 1126 } else { 1127 local_admin->config = DCBX_CONFIG_VERSION_DISABLED; 1128 } 1129 1130 if (params->override_flags & QED_DCBX_OVERRIDE_PFC_CFG) 1131 qed_dcbx_set_pfc_data(p_hwfn, &local_admin->features.pfc, 1132 ¶ms->config.params); 1133 1134 if (params->override_flags & QED_DCBX_OVERRIDE_ETS_CFG) 1135 qed_dcbx_set_ets_data(p_hwfn, &local_admin->features.ets, 1136 ¶ms->config.params); 1137 1138 if (params->override_flags & QED_DCBX_OVERRIDE_APP_CFG) 1139 qed_dcbx_set_app_data(p_hwfn, &local_admin->features.app, 1140 ¶ms->config.params, ieee); 1141 } 1142 1143 int qed_dcbx_config_params(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, 1144 struct qed_dcbx_set *params, bool hw_commit) 1145 { 1146 struct dcbx_local_params local_admin; 1147 struct qed_dcbx_mib_meta_data data; 1148 u32 resp = 0, param = 0; 1149 int rc = 0; 1150 1151 if (!hw_commit) { 1152 memcpy(&p_hwfn->p_dcbx_info->set, params, 1153 sizeof(struct qed_dcbx_set)); 1154 return 0; 1155 } 1156 1157 /* clear set-parmas cache */ 1158 memset(&p_hwfn->p_dcbx_info->set, 0, sizeof(p_hwfn->p_dcbx_info->set)); 1159 1160 memset(&local_admin, 0, sizeof(local_admin)); 1161 qed_dcbx_set_local_params(p_hwfn, &local_admin, params); 1162 1163 data.addr = p_hwfn->mcp_info->port_addr + 1164 offsetof(struct public_port, local_admin_dcbx_mib); 1165 data.local_admin = &local_admin; 1166 data.size = sizeof(struct dcbx_local_params); 1167 qed_memcpy_to(p_hwfn, p_ptt, data.addr, data.local_admin, data.size); 1168 1169 rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_SET_DCBX, 1170 1 << DRV_MB_PARAM_LLDP_SEND_SHIFT, &resp, ¶m); 1171 if (rc) 1172 DP_NOTICE(p_hwfn, "Failed to send DCBX update request\n"); 1173 1174 return rc; 1175 } 1176 1177 int qed_dcbx_get_config_params(struct qed_hwfn *p_hwfn, 1178 struct qed_dcbx_set *params) 1179 { 1180 struct qed_dcbx_get *dcbx_info; 1181 int rc; 1182 1183 if (p_hwfn->p_dcbx_info->set.config.valid) { 1184 memcpy(params, &p_hwfn->p_dcbx_info->set, 1185 sizeof(struct qed_dcbx_set)); 1186 return 0; 1187 } 1188 1189 dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_KERNEL); 1190 if (!dcbx_info) 1191 return -ENOMEM; 1192 1193 memset(dcbx_info, 0, sizeof(*dcbx_info)); 1194 rc = qed_dcbx_query_params(p_hwfn, dcbx_info, QED_DCBX_OPERATIONAL_MIB); 1195 if (rc) { 1196 kfree(dcbx_info); 1197 return rc; 1198 } 1199 1200 p_hwfn->p_dcbx_info->set.override_flags = 0; 1201 p_hwfn->p_dcbx_info->set.ver_num = DCBX_CONFIG_VERSION_DISABLED; 1202 if (dcbx_info->operational.cee) 1203 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_CEE; 1204 if (dcbx_info->operational.ieee) 1205 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_IEEE; 1206 1207 p_hwfn->p_dcbx_info->set.enabled = dcbx_info->operational.enabled; 1208 memcpy(&p_hwfn->p_dcbx_info->set.config.params, 1209 &dcbx_info->operational.params, 1210 sizeof(struct qed_dcbx_admin_params)); 1211 p_hwfn->p_dcbx_info->set.config.valid = true; 1212 1213 memcpy(params, &p_hwfn->p_dcbx_info->set, sizeof(struct qed_dcbx_set)); 1214 1215 kfree(dcbx_info); 1216 1217 return 0; 1218 } 1219 1220 static struct qed_dcbx_get *qed_dcbnl_get_dcbx(struct qed_hwfn *hwfn, 1221 enum qed_mib_read_type type) 1222 { 1223 struct qed_dcbx_get *dcbx_info; 1224 1225 dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_KERNEL); 1226 if (!dcbx_info) 1227 return NULL; 1228 1229 memset(dcbx_info, 0, sizeof(*dcbx_info)); 1230 if (qed_dcbx_query_params(hwfn, dcbx_info, type)) { 1231 kfree(dcbx_info); 1232 return NULL; 1233 } 1234 1235 if ((type == QED_DCBX_OPERATIONAL_MIB) && 1236 !dcbx_info->operational.enabled) { 1237 DP_INFO(hwfn, "DCBX is not enabled/operational\n"); 1238 kfree(dcbx_info); 1239 return NULL; 1240 } 1241 1242 return dcbx_info; 1243 } 1244 1245 static u8 qed_dcbnl_getstate(struct qed_dev *cdev) 1246 { 1247 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 1248 struct qed_dcbx_get *dcbx_info; 1249 bool enabled; 1250 1251 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); 1252 if (!dcbx_info) 1253 return 0; 1254 1255 enabled = dcbx_info->operational.enabled; 1256 DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", enabled); 1257 kfree(dcbx_info); 1258 1259 return enabled; 1260 } 1261 1262 static u8 qed_dcbnl_setstate(struct qed_dev *cdev, u8 state) 1263 { 1264 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 1265 struct qed_dcbx_set dcbx_set; 1266 struct qed_ptt *ptt; 1267 int rc; 1268 1269 DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", state); 1270 1271 memset(&dcbx_set, 0, sizeof(dcbx_set)); 1272 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set); 1273 if (rc) 1274 return 1; 1275 1276 dcbx_set.enabled = !!state; 1277 1278 ptt = qed_ptt_acquire(hwfn); 1279 if (!ptt) 1280 return 1; 1281 1282 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0); 1283 1284 qed_ptt_release(hwfn, ptt); 1285 1286 return rc ? 1 : 0; 1287 } 1288 1289 static void qed_dcbnl_getpgtccfgtx(struct qed_dev *cdev, int tc, u8 *prio_type, 1290 u8 *pgid, u8 *bw_pct, u8 *up_map) 1291 { 1292 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 1293 struct qed_dcbx_get *dcbx_info; 1294 1295 DP_VERBOSE(hwfn, QED_MSG_DCB, "tc = %d\n", tc); 1296 *prio_type = *pgid = *bw_pct = *up_map = 0; 1297 if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) { 1298 DP_INFO(hwfn, "Invalid tc %d\n", tc); 1299 return; 1300 } 1301 1302 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); 1303 if (!dcbx_info) 1304 return; 1305 1306 *pgid = dcbx_info->operational.params.ets_pri_tc_tbl[tc]; 1307 kfree(dcbx_info); 1308 } 1309 1310 static void qed_dcbnl_getpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 *bw_pct) 1311 { 1312 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 1313 struct qed_dcbx_get *dcbx_info; 1314 1315 *bw_pct = 0; 1316 DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d\n", pgid); 1317 if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) { 1318 DP_INFO(hwfn, "Invalid pgid %d\n", pgid); 1319 return; 1320 } 1321 1322 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); 1323 if (!dcbx_info) 1324 return; 1325 1326 *bw_pct = dcbx_info->operational.params.ets_tc_bw_tbl[pgid]; 1327 DP_VERBOSE(hwfn, QED_MSG_DCB, "bw_pct = %d\n", *bw_pct); 1328 kfree(dcbx_info); 1329 } 1330 1331 static void qed_dcbnl_getpgtccfgrx(struct qed_dev *cdev, int tc, u8 *prio, 1332 u8 *bwg_id, u8 *bw_pct, u8 *up_map) 1333 { 1334 DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n"); 1335 *prio = *bwg_id = *bw_pct = *up_map = 0; 1336 } 1337 1338 static void qed_dcbnl_getpgbwgcfgrx(struct qed_dev *cdev, 1339 int bwg_id, u8 *bw_pct) 1340 { 1341 DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n"); 1342 *bw_pct = 0; 1343 } 1344 1345 static void qed_dcbnl_getpfccfg(struct qed_dev *cdev, 1346 int priority, u8 *setting) 1347 { 1348 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 1349 struct qed_dcbx_get *dcbx_info; 1350 1351 DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d\n", priority); 1352 if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) { 1353 DP_INFO(hwfn, "Invalid priority %d\n", priority); 1354 return; 1355 } 1356 1357 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); 1358 if (!dcbx_info) 1359 return; 1360 1361 *setting = dcbx_info->operational.params.pfc.prio[priority]; 1362 DP_VERBOSE(hwfn, QED_MSG_DCB, "setting = %d\n", *setting); 1363 kfree(dcbx_info); 1364 } 1365 1366 static void qed_dcbnl_setpfccfg(struct qed_dev *cdev, int priority, u8 setting) 1367 { 1368 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 1369 struct qed_dcbx_set dcbx_set; 1370 struct qed_ptt *ptt; 1371 int rc; 1372 1373 DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d setting = %d\n", 1374 priority, setting); 1375 if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) { 1376 DP_INFO(hwfn, "Invalid priority %d\n", priority); 1377 return; 1378 } 1379 1380 memset(&dcbx_set, 0, sizeof(dcbx_set)); 1381 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set); 1382 if (rc) 1383 return; 1384 1385 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG; 1386 dcbx_set.config.params.pfc.prio[priority] = !!setting; 1387 1388 ptt = qed_ptt_acquire(hwfn); 1389 if (!ptt) 1390 return; 1391 1392 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0); 1393 1394 qed_ptt_release(hwfn, ptt); 1395 } 1396 1397 static u8 qed_dcbnl_getcap(struct qed_dev *cdev, int capid, u8 *cap) 1398 { 1399 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 1400 struct qed_dcbx_get *dcbx_info; 1401 int rc = 0; 1402 1403 DP_VERBOSE(hwfn, QED_MSG_DCB, "capid = %d\n", capid); 1404 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); 1405 if (!dcbx_info) 1406 return 1; 1407 1408 switch (capid) { 1409 case DCB_CAP_ATTR_PG: 1410 case DCB_CAP_ATTR_PFC: 1411 case DCB_CAP_ATTR_UP2TC: 1412 case DCB_CAP_ATTR_GSP: 1413 *cap = true; 1414 break; 1415 case DCB_CAP_ATTR_PG_TCS: 1416 case DCB_CAP_ATTR_PFC_TCS: 1417 *cap = 0x80; 1418 break; 1419 case DCB_CAP_ATTR_DCBX: 1420 *cap = (DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_CEE | 1421 DCB_CAP_DCBX_VER_IEEE); 1422 break; 1423 default: 1424 *cap = false; 1425 rc = 1; 1426 } 1427 1428 DP_VERBOSE(hwfn, QED_MSG_DCB, "id = %d caps = %d\n", capid, *cap); 1429 kfree(dcbx_info); 1430 1431 return rc; 1432 } 1433 1434 static int qed_dcbnl_getnumtcs(struct qed_dev *cdev, int tcid, u8 *num) 1435 { 1436 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 1437 struct qed_dcbx_get *dcbx_info; 1438 int rc = 0; 1439 1440 DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d\n", tcid); 1441 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); 1442 if (!dcbx_info) 1443 return -EINVAL; 1444 1445 switch (tcid) { 1446 case DCB_NUMTCS_ATTR_PG: 1447 *num = dcbx_info->operational.params.max_ets_tc; 1448 break; 1449 case DCB_NUMTCS_ATTR_PFC: 1450 *num = dcbx_info->operational.params.pfc.max_tc; 1451 break; 1452 default: 1453 rc = -EINVAL; 1454 } 1455 1456 kfree(dcbx_info); 1457 DP_VERBOSE(hwfn, QED_MSG_DCB, "numtcs = %d\n", *num); 1458 1459 return rc; 1460 } 1461 1462 static u8 qed_dcbnl_getpfcstate(struct qed_dev *cdev) 1463 { 1464 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 1465 struct qed_dcbx_get *dcbx_info; 1466 bool enabled; 1467 1468 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); 1469 if (!dcbx_info) 1470 return 0; 1471 1472 enabled = dcbx_info->operational.params.pfc.enabled; 1473 DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d\n", enabled); 1474 kfree(dcbx_info); 1475 1476 return enabled; 1477 } 1478 1479 static u8 qed_dcbnl_getdcbx(struct qed_dev *cdev) 1480 { 1481 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 1482 struct qed_dcbx_get *dcbx_info; 1483 u8 mode = 0; 1484 1485 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); 1486 if (!dcbx_info) 1487 return 0; 1488 1489 if (dcbx_info->operational.enabled) 1490 mode |= DCB_CAP_DCBX_LLD_MANAGED; 1491 if (dcbx_info->operational.ieee) 1492 mode |= DCB_CAP_DCBX_VER_IEEE; 1493 if (dcbx_info->operational.cee) 1494 mode |= DCB_CAP_DCBX_VER_CEE; 1495 1496 DP_VERBOSE(hwfn, QED_MSG_DCB, "dcb mode = %d\n", mode); 1497 kfree(dcbx_info); 1498 1499 return mode; 1500 } 1501 1502 static void qed_dcbnl_setpgtccfgtx(struct qed_dev *cdev, 1503 int tc, 1504 u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map) 1505 { 1506 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 1507 struct qed_dcbx_set dcbx_set; 1508 struct qed_ptt *ptt; 1509 int rc; 1510 1511 DP_VERBOSE(hwfn, QED_MSG_DCB, 1512 "tc = %d pri_type = %d pgid = %d bw_pct = %d up_map = %d\n", 1513 tc, pri_type, pgid, bw_pct, up_map); 1514 1515 if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) { 1516 DP_INFO(hwfn, "Invalid tc %d\n", tc); 1517 return; 1518 } 1519 1520 memset(&dcbx_set, 0, sizeof(dcbx_set)); 1521 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set); 1522 if (rc) 1523 return; 1524 1525 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG; 1526 dcbx_set.config.params.ets_pri_tc_tbl[tc] = pgid; 1527 1528 ptt = qed_ptt_acquire(hwfn); 1529 if (!ptt) 1530 return; 1531 1532 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0); 1533 1534 qed_ptt_release(hwfn, ptt); 1535 } 1536 1537 static void qed_dcbnl_setpgtccfgrx(struct qed_dev *cdev, int prio, 1538 u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map) 1539 { 1540 DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n"); 1541 } 1542 1543 static void qed_dcbnl_setpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 bw_pct) 1544 { 1545 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 1546 struct qed_dcbx_set dcbx_set; 1547 struct qed_ptt *ptt; 1548 int rc; 1549 1550 DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d bw_pct = %d\n", pgid, bw_pct); 1551 if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) { 1552 DP_INFO(hwfn, "Invalid pgid %d\n", pgid); 1553 return; 1554 } 1555 1556 memset(&dcbx_set, 0, sizeof(dcbx_set)); 1557 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set); 1558 if (rc) 1559 return; 1560 1561 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG; 1562 dcbx_set.config.params.ets_tc_bw_tbl[pgid] = bw_pct; 1563 1564 ptt = qed_ptt_acquire(hwfn); 1565 if (!ptt) 1566 return; 1567 1568 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0); 1569 1570 qed_ptt_release(hwfn, ptt); 1571 } 1572 1573 static void qed_dcbnl_setpgbwgcfgrx(struct qed_dev *cdev, int pgid, u8 bw_pct) 1574 { 1575 DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n"); 1576 } 1577 1578 static u8 qed_dcbnl_setall(struct qed_dev *cdev) 1579 { 1580 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 1581 struct qed_dcbx_set dcbx_set; 1582 struct qed_ptt *ptt; 1583 int rc; 1584 1585 memset(&dcbx_set, 0, sizeof(dcbx_set)); 1586 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set); 1587 if (rc) 1588 return 1; 1589 1590 ptt = qed_ptt_acquire(hwfn); 1591 if (!ptt) 1592 return 1; 1593 1594 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 1); 1595 1596 qed_ptt_release(hwfn, ptt); 1597 1598 return rc; 1599 } 1600 1601 static int qed_dcbnl_setnumtcs(struct qed_dev *cdev, int tcid, u8 num) 1602 { 1603 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 1604 struct qed_dcbx_set dcbx_set; 1605 struct qed_ptt *ptt; 1606 int rc; 1607 1608 DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d num = %d\n", tcid, num); 1609 memset(&dcbx_set, 0, sizeof(dcbx_set)); 1610 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set); 1611 if (rc) 1612 return 1; 1613 1614 switch (tcid) { 1615 case DCB_NUMTCS_ATTR_PG: 1616 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG; 1617 dcbx_set.config.params.max_ets_tc = num; 1618 break; 1619 case DCB_NUMTCS_ATTR_PFC: 1620 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG; 1621 dcbx_set.config.params.pfc.max_tc = num; 1622 break; 1623 default: 1624 DP_INFO(hwfn, "Invalid tcid %d\n", tcid); 1625 return -EINVAL; 1626 } 1627 1628 ptt = qed_ptt_acquire(hwfn); 1629 if (!ptt) 1630 return -EINVAL; 1631 1632 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0); 1633 1634 qed_ptt_release(hwfn, ptt); 1635 1636 return 0; 1637 } 1638 1639 static void qed_dcbnl_setpfcstate(struct qed_dev *cdev, u8 state) 1640 { 1641 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 1642 struct qed_dcbx_set dcbx_set; 1643 struct qed_ptt *ptt; 1644 int rc; 1645 1646 DP_VERBOSE(hwfn, QED_MSG_DCB, "new state = %d\n", state); 1647 1648 memset(&dcbx_set, 0, sizeof(dcbx_set)); 1649 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set); 1650 if (rc) 1651 return; 1652 1653 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG; 1654 dcbx_set.config.params.pfc.enabled = !!state; 1655 1656 ptt = qed_ptt_acquire(hwfn); 1657 if (!ptt) 1658 return; 1659 1660 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0); 1661 1662 qed_ptt_release(hwfn, ptt); 1663 } 1664 1665 static int qed_dcbnl_getapp(struct qed_dev *cdev, u8 idtype, u16 idval) 1666 { 1667 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 1668 struct qed_dcbx_get *dcbx_info; 1669 struct qed_app_entry *entry; 1670 bool ethtype; 1671 u8 prio = 0; 1672 int i; 1673 1674 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); 1675 if (!dcbx_info) 1676 return -EINVAL; 1677 1678 ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE); 1679 for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) { 1680 entry = &dcbx_info->operational.params.app_entry[i]; 1681 if ((entry->ethtype == ethtype) && (entry->proto_id == idval)) { 1682 prio = entry->prio; 1683 break; 1684 } 1685 } 1686 1687 if (i == QED_DCBX_MAX_APP_PROTOCOL) { 1688 DP_ERR(cdev, "App entry (%d, %d) not found\n", idtype, idval); 1689 kfree(dcbx_info); 1690 return -EINVAL; 1691 } 1692 1693 kfree(dcbx_info); 1694 1695 return prio; 1696 } 1697 1698 static int qed_dcbnl_setapp(struct qed_dev *cdev, 1699 u8 idtype, u16 idval, u8 pri_map) 1700 { 1701 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 1702 struct qed_dcbx_set dcbx_set; 1703 struct qed_app_entry *entry; 1704 struct qed_ptt *ptt; 1705 bool ethtype; 1706 int rc, i; 1707 1708 memset(&dcbx_set, 0, sizeof(dcbx_set)); 1709 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set); 1710 if (rc) 1711 return -EINVAL; 1712 1713 ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE); 1714 for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) { 1715 entry = &dcbx_set.config.params.app_entry[i]; 1716 if ((entry->ethtype == ethtype) && (entry->proto_id == idval)) 1717 break; 1718 /* First empty slot */ 1719 if (!entry->proto_id) { 1720 dcbx_set.config.params.num_app_entries++; 1721 break; 1722 } 1723 } 1724 1725 if (i == QED_DCBX_MAX_APP_PROTOCOL) { 1726 DP_ERR(cdev, "App table is full\n"); 1727 return -EBUSY; 1728 } 1729 1730 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG; 1731 dcbx_set.config.params.app_entry[i].ethtype = ethtype; 1732 dcbx_set.config.params.app_entry[i].proto_id = idval; 1733 dcbx_set.config.params.app_entry[i].prio = pri_map; 1734 1735 ptt = qed_ptt_acquire(hwfn); 1736 if (!ptt) 1737 return -EBUSY; 1738 1739 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0); 1740 1741 qed_ptt_release(hwfn, ptt); 1742 1743 return rc; 1744 } 1745 1746 static u8 qed_dcbnl_setdcbx(struct qed_dev *cdev, u8 mode) 1747 { 1748 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 1749 struct qed_dcbx_set dcbx_set; 1750 struct qed_ptt *ptt; 1751 int rc; 1752 1753 DP_VERBOSE(hwfn, QED_MSG_DCB, "new mode = %x\n", mode); 1754 1755 if (!(mode & DCB_CAP_DCBX_VER_IEEE) && !(mode & DCB_CAP_DCBX_VER_CEE)) { 1756 DP_INFO(hwfn, "Allowed mode is cee, ieee or both\n"); 1757 return 1; 1758 } 1759 1760 memset(&dcbx_set, 0, sizeof(dcbx_set)); 1761 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set); 1762 if (rc) 1763 return 1; 1764 1765 dcbx_set.ver_num = 0; 1766 if (mode & DCB_CAP_DCBX_VER_CEE) { 1767 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_CEE; 1768 dcbx_set.enabled = true; 1769 } 1770 1771 if (mode & DCB_CAP_DCBX_VER_IEEE) { 1772 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_IEEE; 1773 dcbx_set.enabled = true; 1774 } 1775 1776 ptt = qed_ptt_acquire(hwfn); 1777 if (!ptt) 1778 return 1; 1779 1780 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0); 1781 1782 qed_ptt_release(hwfn, ptt); 1783 1784 return 0; 1785 } 1786 1787 static u8 qed_dcbnl_getfeatcfg(struct qed_dev *cdev, int featid, u8 *flags) 1788 { 1789 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 1790 struct qed_dcbx_get *dcbx_info; 1791 1792 DP_VERBOSE(hwfn, QED_MSG_DCB, "Feature id = %d\n", featid); 1793 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); 1794 if (!dcbx_info) 1795 return 1; 1796 1797 *flags = 0; 1798 switch (featid) { 1799 case DCB_FEATCFG_ATTR_PG: 1800 if (dcbx_info->operational.params.ets_enabled) 1801 *flags = DCB_FEATCFG_ENABLE; 1802 else 1803 *flags = DCB_FEATCFG_ERROR; 1804 break; 1805 case DCB_FEATCFG_ATTR_PFC: 1806 if (dcbx_info->operational.params.pfc.enabled) 1807 *flags = DCB_FEATCFG_ENABLE; 1808 else 1809 *flags = DCB_FEATCFG_ERROR; 1810 break; 1811 case DCB_FEATCFG_ATTR_APP: 1812 if (dcbx_info->operational.params.app_valid) 1813 *flags = DCB_FEATCFG_ENABLE; 1814 else 1815 *flags = DCB_FEATCFG_ERROR; 1816 break; 1817 default: 1818 DP_INFO(hwfn, "Invalid feature-ID %d\n", featid); 1819 kfree(dcbx_info); 1820 return 1; 1821 } 1822 1823 DP_VERBOSE(hwfn, QED_MSG_DCB, "flags = %d\n", *flags); 1824 kfree(dcbx_info); 1825 1826 return 0; 1827 } 1828 1829 static u8 qed_dcbnl_setfeatcfg(struct qed_dev *cdev, int featid, u8 flags) 1830 { 1831 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 1832 struct qed_dcbx_set dcbx_set; 1833 bool enabled, willing; 1834 struct qed_ptt *ptt; 1835 int rc; 1836 1837 DP_VERBOSE(hwfn, QED_MSG_DCB, "featid = %d flags = %d\n", 1838 featid, flags); 1839 memset(&dcbx_set, 0, sizeof(dcbx_set)); 1840 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set); 1841 if (rc) 1842 return 1; 1843 1844 enabled = !!(flags & DCB_FEATCFG_ENABLE); 1845 willing = !!(flags & DCB_FEATCFG_WILLING); 1846 switch (featid) { 1847 case DCB_FEATCFG_ATTR_PG: 1848 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG; 1849 dcbx_set.config.params.ets_enabled = enabled; 1850 dcbx_set.config.params.ets_willing = willing; 1851 break; 1852 case DCB_FEATCFG_ATTR_PFC: 1853 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG; 1854 dcbx_set.config.params.pfc.enabled = enabled; 1855 dcbx_set.config.params.pfc.willing = willing; 1856 break; 1857 case DCB_FEATCFG_ATTR_APP: 1858 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG; 1859 dcbx_set.config.params.app_willing = willing; 1860 break; 1861 default: 1862 DP_INFO(hwfn, "Invalid feature-ID %d\n", featid); 1863 return 1; 1864 } 1865 1866 ptt = qed_ptt_acquire(hwfn); 1867 if (!ptt) 1868 return 1; 1869 1870 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0); 1871 1872 qed_ptt_release(hwfn, ptt); 1873 1874 return 0; 1875 } 1876 1877 static int qed_dcbnl_peer_getappinfo(struct qed_dev *cdev, 1878 struct dcb_peer_app_info *info, 1879 u16 *app_count) 1880 { 1881 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 1882 struct qed_dcbx_get *dcbx_info; 1883 1884 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB); 1885 if (!dcbx_info) 1886 return -EINVAL; 1887 1888 info->willing = dcbx_info->remote.params.app_willing; 1889 info->error = dcbx_info->remote.params.app_error; 1890 *app_count = dcbx_info->remote.params.num_app_entries; 1891 kfree(dcbx_info); 1892 1893 return 0; 1894 } 1895 1896 static int qed_dcbnl_peer_getapptable(struct qed_dev *cdev, 1897 struct dcb_app *table) 1898 { 1899 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 1900 struct qed_dcbx_get *dcbx_info; 1901 int i; 1902 1903 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB); 1904 if (!dcbx_info) 1905 return -EINVAL; 1906 1907 for (i = 0; i < dcbx_info->remote.params.num_app_entries; i++) { 1908 if (dcbx_info->remote.params.app_entry[i].ethtype) 1909 table[i].selector = DCB_APP_IDTYPE_ETHTYPE; 1910 else 1911 table[i].selector = DCB_APP_IDTYPE_PORTNUM; 1912 table[i].priority = dcbx_info->remote.params.app_entry[i].prio; 1913 table[i].protocol = 1914 dcbx_info->remote.params.app_entry[i].proto_id; 1915 } 1916 1917 kfree(dcbx_info); 1918 1919 return 0; 1920 } 1921 1922 static int qed_dcbnl_cee_peer_getpfc(struct qed_dev *cdev, struct cee_pfc *pfc) 1923 { 1924 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 1925 struct qed_dcbx_get *dcbx_info; 1926 int i; 1927 1928 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB); 1929 if (!dcbx_info) 1930 return -EINVAL; 1931 1932 for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) 1933 if (dcbx_info->remote.params.pfc.prio[i]) 1934 pfc->pfc_en |= BIT(i); 1935 1936 pfc->tcs_supported = dcbx_info->remote.params.pfc.max_tc; 1937 DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d tcs_supported = %d\n", 1938 pfc->pfc_en, pfc->tcs_supported); 1939 kfree(dcbx_info); 1940 1941 return 0; 1942 } 1943 1944 static int qed_dcbnl_cee_peer_getpg(struct qed_dev *cdev, struct cee_pg *pg) 1945 { 1946 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 1947 struct qed_dcbx_get *dcbx_info; 1948 int i; 1949 1950 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB); 1951 if (!dcbx_info) 1952 return -EINVAL; 1953 1954 pg->willing = dcbx_info->remote.params.ets_willing; 1955 for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) { 1956 pg->pg_bw[i] = dcbx_info->remote.params.ets_tc_bw_tbl[i]; 1957 pg->prio_pg[i] = dcbx_info->remote.params.ets_pri_tc_tbl[i]; 1958 } 1959 1960 DP_VERBOSE(hwfn, QED_MSG_DCB, "willing = %d", pg->willing); 1961 kfree(dcbx_info); 1962 1963 return 0; 1964 } 1965 1966 static int qed_dcbnl_get_ieee_pfc(struct qed_dev *cdev, 1967 struct ieee_pfc *pfc, bool remote) 1968 { 1969 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 1970 struct qed_dcbx_params *params; 1971 struct qed_dcbx_get *dcbx_info; 1972 int rc, i; 1973 1974 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); 1975 if (!dcbx_info) 1976 return -EINVAL; 1977 1978 if (!dcbx_info->operational.ieee) { 1979 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n"); 1980 kfree(dcbx_info); 1981 return -EINVAL; 1982 } 1983 1984 if (remote) { 1985 memset(dcbx_info, 0, sizeof(*dcbx_info)); 1986 rc = qed_dcbx_query_params(hwfn, dcbx_info, 1987 QED_DCBX_REMOTE_MIB); 1988 if (rc) { 1989 kfree(dcbx_info); 1990 return -EINVAL; 1991 } 1992 1993 params = &dcbx_info->remote.params; 1994 } else { 1995 params = &dcbx_info->operational.params; 1996 } 1997 1998 pfc->pfc_cap = params->pfc.max_tc; 1999 pfc->pfc_en = 0; 2000 for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) 2001 if (params->pfc.prio[i]) 2002 pfc->pfc_en |= BIT(i); 2003 2004 kfree(dcbx_info); 2005 2006 return 0; 2007 } 2008 2009 static int qed_dcbnl_ieee_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc) 2010 { 2011 return qed_dcbnl_get_ieee_pfc(cdev, pfc, false); 2012 } 2013 2014 static int qed_dcbnl_ieee_setpfc(struct qed_dev *cdev, struct ieee_pfc *pfc) 2015 { 2016 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 2017 struct qed_dcbx_get *dcbx_info; 2018 struct qed_dcbx_set dcbx_set; 2019 struct qed_ptt *ptt; 2020 int rc, i; 2021 2022 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); 2023 if (!dcbx_info) 2024 return -EINVAL; 2025 2026 if (!dcbx_info->operational.ieee) { 2027 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n"); 2028 kfree(dcbx_info); 2029 return -EINVAL; 2030 } 2031 2032 kfree(dcbx_info); 2033 2034 memset(&dcbx_set, 0, sizeof(dcbx_set)); 2035 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set); 2036 if (rc) 2037 return -EINVAL; 2038 2039 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG; 2040 for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) 2041 dcbx_set.config.params.pfc.prio[i] = !!(pfc->pfc_en & BIT(i)); 2042 2043 ptt = qed_ptt_acquire(hwfn); 2044 if (!ptt) 2045 return -EINVAL; 2046 2047 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0); 2048 2049 qed_ptt_release(hwfn, ptt); 2050 2051 return rc; 2052 } 2053 2054 static int qed_dcbnl_get_ieee_ets(struct qed_dev *cdev, 2055 struct ieee_ets *ets, bool remote) 2056 { 2057 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 2058 struct qed_dcbx_get *dcbx_info; 2059 struct qed_dcbx_params *params; 2060 int rc; 2061 2062 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); 2063 if (!dcbx_info) 2064 return -EINVAL; 2065 2066 if (!dcbx_info->operational.ieee) { 2067 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n"); 2068 kfree(dcbx_info); 2069 return -EINVAL; 2070 } 2071 2072 if (remote) { 2073 memset(dcbx_info, 0, sizeof(*dcbx_info)); 2074 rc = qed_dcbx_query_params(hwfn, dcbx_info, 2075 QED_DCBX_REMOTE_MIB); 2076 if (rc) { 2077 kfree(dcbx_info); 2078 return -EINVAL; 2079 } 2080 2081 params = &dcbx_info->remote.params; 2082 } else { 2083 params = &dcbx_info->operational.params; 2084 } 2085 2086 ets->ets_cap = params->max_ets_tc; 2087 ets->willing = params->ets_willing; 2088 ets->cbs = params->ets_cbs; 2089 memcpy(ets->tc_tx_bw, params->ets_tc_bw_tbl, sizeof(ets->tc_tx_bw)); 2090 memcpy(ets->tc_tsa, params->ets_tc_tsa_tbl, sizeof(ets->tc_tsa)); 2091 memcpy(ets->prio_tc, params->ets_pri_tc_tbl, sizeof(ets->prio_tc)); 2092 kfree(dcbx_info); 2093 2094 return 0; 2095 } 2096 2097 static int qed_dcbnl_ieee_getets(struct qed_dev *cdev, struct ieee_ets *ets) 2098 { 2099 return qed_dcbnl_get_ieee_ets(cdev, ets, false); 2100 } 2101 2102 static int qed_dcbnl_ieee_setets(struct qed_dev *cdev, struct ieee_ets *ets) 2103 { 2104 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 2105 struct qed_dcbx_get *dcbx_info; 2106 struct qed_dcbx_set dcbx_set; 2107 struct qed_ptt *ptt; 2108 int rc; 2109 2110 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); 2111 if (!dcbx_info) 2112 return -EINVAL; 2113 2114 if (!dcbx_info->operational.ieee) { 2115 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n"); 2116 kfree(dcbx_info); 2117 return -EINVAL; 2118 } 2119 2120 kfree(dcbx_info); 2121 2122 memset(&dcbx_set, 0, sizeof(dcbx_set)); 2123 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set); 2124 if (rc) 2125 return -EINVAL; 2126 2127 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG; 2128 dcbx_set.config.params.max_ets_tc = ets->ets_cap; 2129 dcbx_set.config.params.ets_willing = ets->willing; 2130 dcbx_set.config.params.ets_cbs = ets->cbs; 2131 memcpy(dcbx_set.config.params.ets_tc_bw_tbl, ets->tc_tx_bw, 2132 sizeof(ets->tc_tx_bw)); 2133 memcpy(dcbx_set.config.params.ets_tc_tsa_tbl, ets->tc_tsa, 2134 sizeof(ets->tc_tsa)); 2135 memcpy(dcbx_set.config.params.ets_pri_tc_tbl, ets->prio_tc, 2136 sizeof(ets->prio_tc)); 2137 2138 ptt = qed_ptt_acquire(hwfn); 2139 if (!ptt) 2140 return -EINVAL; 2141 2142 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0); 2143 2144 qed_ptt_release(hwfn, ptt); 2145 2146 return rc; 2147 } 2148 2149 static int 2150 qed_dcbnl_ieee_peer_getets(struct qed_dev *cdev, struct ieee_ets *ets) 2151 { 2152 return qed_dcbnl_get_ieee_ets(cdev, ets, true); 2153 } 2154 2155 static int 2156 qed_dcbnl_ieee_peer_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc) 2157 { 2158 return qed_dcbnl_get_ieee_pfc(cdev, pfc, true); 2159 } 2160 2161 static int qed_dcbnl_ieee_getapp(struct qed_dev *cdev, struct dcb_app *app) 2162 { 2163 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 2164 struct qed_dcbx_get *dcbx_info; 2165 struct qed_app_entry *entry; 2166 bool ethtype; 2167 u8 prio = 0; 2168 int i; 2169 2170 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); 2171 if (!dcbx_info) 2172 return -EINVAL; 2173 2174 if (!dcbx_info->operational.ieee) { 2175 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n"); 2176 kfree(dcbx_info); 2177 return -EINVAL; 2178 } 2179 2180 /* ieee defines the selector field value for ethertype to be 1 */ 2181 ethtype = !!((app->selector - 1) == DCB_APP_IDTYPE_ETHTYPE); 2182 for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) { 2183 entry = &dcbx_info->operational.params.app_entry[i]; 2184 if ((entry->ethtype == ethtype) && 2185 (entry->proto_id == app->protocol)) { 2186 prio = entry->prio; 2187 break; 2188 } 2189 } 2190 2191 if (i == QED_DCBX_MAX_APP_PROTOCOL) { 2192 DP_ERR(cdev, "App entry (%d, %d) not found\n", app->selector, 2193 app->protocol); 2194 kfree(dcbx_info); 2195 return -EINVAL; 2196 } 2197 2198 app->priority = ffs(prio) - 1; 2199 2200 kfree(dcbx_info); 2201 2202 return 0; 2203 } 2204 2205 static int qed_dcbnl_ieee_setapp(struct qed_dev *cdev, struct dcb_app *app) 2206 { 2207 struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); 2208 struct qed_dcbx_get *dcbx_info; 2209 struct qed_dcbx_set dcbx_set; 2210 struct qed_app_entry *entry; 2211 struct qed_ptt *ptt; 2212 bool ethtype; 2213 int rc, i; 2214 2215 if (app->priority < 0 || app->priority >= QED_MAX_PFC_PRIORITIES) { 2216 DP_INFO(hwfn, "Invalid priority %d\n", app->priority); 2217 return -EINVAL; 2218 } 2219 2220 dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB); 2221 if (!dcbx_info) 2222 return -EINVAL; 2223 2224 if (!dcbx_info->operational.ieee) { 2225 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n"); 2226 kfree(dcbx_info); 2227 return -EINVAL; 2228 } 2229 2230 kfree(dcbx_info); 2231 2232 memset(&dcbx_set, 0, sizeof(dcbx_set)); 2233 rc = qed_dcbx_get_config_params(hwfn, &dcbx_set); 2234 if (rc) 2235 return -EINVAL; 2236 2237 /* ieee defines the selector field value for ethertype to be 1 */ 2238 ethtype = !!((app->selector - 1) == DCB_APP_IDTYPE_ETHTYPE); 2239 for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) { 2240 entry = &dcbx_set.config.params.app_entry[i]; 2241 if ((entry->ethtype == ethtype) && 2242 (entry->proto_id == app->protocol)) 2243 break; 2244 /* First empty slot */ 2245 if (!entry->proto_id) { 2246 dcbx_set.config.params.num_app_entries++; 2247 break; 2248 } 2249 } 2250 2251 if (i == QED_DCBX_MAX_APP_PROTOCOL) { 2252 DP_ERR(cdev, "App table is full\n"); 2253 return -EBUSY; 2254 } 2255 2256 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG; 2257 dcbx_set.config.params.app_entry[i].ethtype = ethtype; 2258 dcbx_set.config.params.app_entry[i].proto_id = app->protocol; 2259 dcbx_set.config.params.app_entry[i].prio = BIT(app->priority); 2260 2261 ptt = qed_ptt_acquire(hwfn); 2262 if (!ptt) 2263 return -EBUSY; 2264 2265 rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0); 2266 2267 qed_ptt_release(hwfn, ptt); 2268 2269 return rc; 2270 } 2271 2272 const struct qed_eth_dcbnl_ops qed_dcbnl_ops_pass = { 2273 .getstate = qed_dcbnl_getstate, 2274 .setstate = qed_dcbnl_setstate, 2275 .getpgtccfgtx = qed_dcbnl_getpgtccfgtx, 2276 .getpgbwgcfgtx = qed_dcbnl_getpgbwgcfgtx, 2277 .getpgtccfgrx = qed_dcbnl_getpgtccfgrx, 2278 .getpgbwgcfgrx = qed_dcbnl_getpgbwgcfgrx, 2279 .getpfccfg = qed_dcbnl_getpfccfg, 2280 .setpfccfg = qed_dcbnl_setpfccfg, 2281 .getcap = qed_dcbnl_getcap, 2282 .getnumtcs = qed_dcbnl_getnumtcs, 2283 .getpfcstate = qed_dcbnl_getpfcstate, 2284 .getdcbx = qed_dcbnl_getdcbx, 2285 .setpgtccfgtx = qed_dcbnl_setpgtccfgtx, 2286 .setpgtccfgrx = qed_dcbnl_setpgtccfgrx, 2287 .setpgbwgcfgtx = qed_dcbnl_setpgbwgcfgtx, 2288 .setpgbwgcfgrx = qed_dcbnl_setpgbwgcfgrx, 2289 .setall = qed_dcbnl_setall, 2290 .setnumtcs = qed_dcbnl_setnumtcs, 2291 .setpfcstate = qed_dcbnl_setpfcstate, 2292 .setapp = qed_dcbnl_setapp, 2293 .setdcbx = qed_dcbnl_setdcbx, 2294 .setfeatcfg = qed_dcbnl_setfeatcfg, 2295 .getfeatcfg = qed_dcbnl_getfeatcfg, 2296 .getapp = qed_dcbnl_getapp, 2297 .peer_getappinfo = qed_dcbnl_peer_getappinfo, 2298 .peer_getapptable = qed_dcbnl_peer_getapptable, 2299 .cee_peer_getpfc = qed_dcbnl_cee_peer_getpfc, 2300 .cee_peer_getpg = qed_dcbnl_cee_peer_getpg, 2301 .ieee_getpfc = qed_dcbnl_ieee_getpfc, 2302 .ieee_setpfc = qed_dcbnl_ieee_setpfc, 2303 .ieee_getets = qed_dcbnl_ieee_getets, 2304 .ieee_setets = qed_dcbnl_ieee_setets, 2305 .ieee_peer_getpfc = qed_dcbnl_ieee_peer_getpfc, 2306 .ieee_peer_getets = qed_dcbnl_ieee_peer_getets, 2307 .ieee_getapp = qed_dcbnl_ieee_getapp, 2308 .ieee_setapp = qed_dcbnl_ieee_setapp, 2309 }; 2310 2311 #endif 2312