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