drivers/net/qede/base/ecore_dcbx.c

   1 /*
   2  * Copyright (c) 2016 QLogic Corporation.
   3  * All rights reserved.
   4  * www.qlogic.com
   5  *
   6  * See LICENSE.qede_pmd for copyright and licensing details.
   7  */
   8
   9 #include "bcm_osal.h"
  10 #include "ecore.h"
  11 #include "ecore_sp_commands.h"
  12 #include "ecore_dcbx.h"
  13 #include "ecore_cxt.h"
  14 #include "ecore_gtt_reg_addr.h"
  15 #include "ecore_iro.h"
  16 #include "ecore_iov_api.h"
  17
  18 #define ECORE_DCBX_MAX_MIB_READ_TRY     (100)
  19 #define ECORE_ETH_TYPE_DEFAULT          (0)
  20
  21 #define ECORE_DCBX_INVALID_PRIORITY     0xFF
  22
  23 /* Get Traffic Class from priority traffic class table, 4 bits represent
  24  * the traffic class corresponding to the priority.
  25  */
  26 #define ECORE_DCBX_PRIO2TC(prio_tc_tbl, prio) \
  27                 ((u32)(prio_tc_tbl >> ((7 - prio) * 4)) & 0x7)
  28
  29 static bool ecore_dcbx_app_ethtype(u32 app_info_bitmap)
  30 {
  31         return !!(ECORE_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) ==
  32                   DCBX_APP_SF_ETHTYPE);
  33 }
  34
  35 static bool ecore_dcbx_ieee_app_ethtype(u32 app_info_bitmap)
  36 {
  37         u8 mfw_val = ECORE_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE);
  38
  39         /* Old MFW */
  40         if (mfw_val == DCBX_APP_SF_IEEE_RESERVED)
  41                 return ecore_dcbx_app_ethtype(app_info_bitmap);
  42
  43         return !!(mfw_val == DCBX_APP_SF_IEEE_ETHTYPE);
  44 }
  45
  46 static bool ecore_dcbx_app_port(u32 app_info_bitmap)
  47 {
  48         return !!(ECORE_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) ==
  49                   DCBX_APP_SF_PORT);
  50 }
  51
  52 static bool ecore_dcbx_ieee_app_port(u32 app_info_bitmap, u8 type)
  53 {
  54         u8 mfw_val = ECORE_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE);
  55
  56         /* Old MFW */
  57         if (mfw_val == DCBX_APP_SF_IEEE_RESERVED)
  58                 return ecore_dcbx_app_port(app_info_bitmap);
  59
  60         return !!(mfw_val == type || mfw_val == DCBX_APP_SF_IEEE_TCP_UDP_PORT);
  61 }
  62
  63 static bool ecore_dcbx_default_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
  64 {
  65         bool ethtype;
  66
  67         if (ieee)
  68                 ethtype = ecore_dcbx_ieee_app_ethtype(app_info_bitmap);
  69         else
  70                 ethtype = ecore_dcbx_app_ethtype(app_info_bitmap);
  71
  72         return !!(ethtype && (proto_id == ECORE_ETH_TYPE_DEFAULT));
  73 }
  74
  75 static void
  76 ecore_dcbx_dp_protocol(struct ecore_hwfn *p_hwfn,
  77                        struct ecore_dcbx_results *p_data)
  78 {
  79         enum dcbx_protocol_type id;
  80         int i;
  81
  82         DP_VERBOSE(p_hwfn, ECORE_MSG_DCB, "DCBX negotiated: %d\n",
  83                    p_data->dcbx_enabled);
  84
  85         for (i = 0; i < OSAL_ARRAY_SIZE(ecore_dcbx_app_update); i++) {
  86                 id = ecore_dcbx_app_update[i].id;
  87
  88                 DP_VERBOSE(p_hwfn, ECORE_MSG_DCB,
  89                            "%s info: update %d, enable %d, prio %d, tc %d,"
  90                            " num_active_tc %d dscp_enable = %d dscp_val = %d\n",
  91                            ecore_dcbx_app_update[i].name,
  92                            p_data->arr[id].update,
  93                            p_data->arr[id].enable, p_data->arr[id].priority,
  94                            p_data->arr[id].tc, p_hwfn->hw_info.num_active_tc,
  95                            p_data->arr[id].dscp_enable,
  96                            p_data->arr[id].dscp_val);
  97         }
  98 }
  99
 100 void
 101 ecore_dcbx_set_params(struct ecore_dcbx_results *p_data,
 102                       struct ecore_hwfn *p_hwfn,
 103                       bool enable, u8 prio, u8 tc,
 104                       enum dcbx_protocol_type type,
 105                       enum ecore_pci_personality personality)
 106 {
 107         struct ecore_dcbx_dscp_params *dscp = &p_hwfn->p_dcbx_info->get.dscp;
 108
 109         /* PF update ramrod data */
 110         p_data->arr[type].enable = enable;
 111         p_data->arr[type].priority = prio;
 112         p_data->arr[type].tc = tc;
 113         p_data->arr[type].dscp_enable = dscp->enabled;
 114         if (p_data->arr[type].dscp_enable) {
 115                 u8 i;
 116
 117                 for (i = 0; i < ECORE_DCBX_DSCP_SIZE; i++)
 118                         if (prio == dscp->dscp_pri_map[i]) {
 119                                 p_data->arr[type].dscp_val = i;
 120                                 break;
 121                         }
 122         }
 123
 124         if (enable && p_data->arr[type].dscp_enable)
 125                 p_data->arr[type].update = UPDATE_DCB_DSCP;
 126         else if (enable)
 127                 p_data->arr[type].update = UPDATE_DCB;
 128         else
 129                 p_data->arr[type].update = DONT_UPDATE_DCB_DSCP;
 130
 131         /* QM reconf data */
 132         if (p_hwfn->hw_info.personality == personality)
 133                 p_hwfn->hw_info.offload_tc = tc;
 134 }
 135
 136 /* Update app protocol data and hw_info fields with the TLV info */
 137 static void
 138 ecore_dcbx_update_app_info(struct ecore_dcbx_results *p_data,
 139                            struct ecore_hwfn *p_hwfn,
 140                            bool enable, u8 prio, u8 tc,
 141                            enum dcbx_protocol_type type)
 142 {
 143         enum ecore_pci_personality personality;
 144         enum dcbx_protocol_type id;
 145         const char *name;       /* @DPDK */
 146         int i;
 147
 148         for (i = 0; i < OSAL_ARRAY_SIZE(ecore_dcbx_app_update); i++) {
 149                 id = ecore_dcbx_app_update[i].id;
 150
 151                 if (type != id)
 152                         continue;
 153
 154                 personality = ecore_dcbx_app_update[i].personality;
 155                 name = ecore_dcbx_app_update[i].name;
 156
 157                 ecore_dcbx_set_params(p_data, p_hwfn, enable,
 158                                       prio, tc, type, personality);
 159         }
 160 }
 161
 162 static enum _ecore_status_t
 163 ecore_dcbx_get_app_priority(u8 pri_bitmap, u8 *priority)
 164 {
 165         u32 pri_mask, pri = ECORE_MAX_PFC_PRIORITIES;
 166         u32 index = ECORE_MAX_PFC_PRIORITIES - 1;
 167         enum _ecore_status_t rc = ECORE_SUCCESS;
 168
 169         /* Bitmap 1 corresponds to priority 0, return priority 0 */
 170         if (pri_bitmap == 1) {
 171                 *priority = 0;
 172                 return rc;
 173         }
 174
 175         /* Choose the highest priority */
 176         while ((pri == ECORE_MAX_PFC_PRIORITIES) && index) {
 177                 pri_mask = 1 << index;
 178                 if (pri_bitmap & pri_mask)
 179                         pri = index;
 180                 index--;
 181         }
 182
 183         if (pri < ECORE_MAX_PFC_PRIORITIES)
 184                 *priority = (u8)pri;
 185         else
 186                 rc = ECORE_INVAL;
 187
 188         return rc;
 189 }
 190
 191 static bool
 192 ecore_dcbx_get_app_protocol_type(struct ecore_hwfn *p_hwfn,
 193                                  u32 app_prio_bitmap, u16 id,
 194                                  enum dcbx_protocol_type *type, bool ieee)
 195 {
 196         if (ecore_dcbx_default_tlv(app_prio_bitmap, id, ieee)) {
 197                 *type = DCBX_PROTOCOL_ETH;
 198         } else {
 199                 *type = DCBX_MAX_PROTOCOL_TYPE;
 200                 DP_ERR(p_hwfn,
 201                        "No action required, App TLV id = 0x%x"
 202                        " app_prio_bitmap = 0x%x\n",
 203                        id, app_prio_bitmap);
 204                 return false;
 205         }
 206
 207         return true;
 208 }
 209
 210 /*  Parse app TLV's to update TC information in hw_info structure for
 211  * reconfiguring QM. Get protocol specific data for PF update ramrod command.
 212  */
 213 static enum _ecore_status_t
 214 ecore_dcbx_process_tlv(struct ecore_hwfn *p_hwfn,
 215                        struct ecore_dcbx_results *p_data,
 216                        struct dcbx_app_priority_entry *p_tbl, u32 pri_tc_tbl,
 217                        int count, u8 dcbx_version)
 218 {
 219         enum dcbx_protocol_type type;
 220         u8 tc, priority_map;
 221         bool enable, ieee;
 222         u16 protocol_id;
 223         u8 priority;
 224         enum _ecore_status_t rc = ECORE_SUCCESS;
 225         int i;
 226
 227         DP_VERBOSE(p_hwfn, ECORE_MSG_DCB,
 228                    "Num APP entries = %d pri_tc_tbl = 0x%x dcbx_version = %u\n",
 229                    count, pri_tc_tbl, dcbx_version);
 230
 231         ieee = (dcbx_version == DCBX_CONFIG_VERSION_IEEE);
 232         /* Parse APP TLV */
 233         for (i = 0; i < count; i++) {
 234                 protocol_id = ECORE_MFW_GET_FIELD(p_tbl[i].entry,
 235                                                   DCBX_APP_PROTOCOL_ID);
 236                 priority_map = ECORE_MFW_GET_FIELD(p_tbl[i].entry,
 237                                                    DCBX_APP_PRI_MAP);
 238                 DP_VERBOSE(p_hwfn, ECORE_MSG_DCB, "Id = 0x%x pri_map = %u\n",
 239                            protocol_id, priority_map);
 240                 rc = ecore_dcbx_get_app_priority(priority_map, &priority);
 241                 if (rc == ECORE_INVAL) {
 242                         DP_ERR(p_hwfn, "Invalid priority\n");
 243                         return ECORE_INVAL;
 244                 }
 245
 246                 tc = ECORE_DCBX_PRIO2TC(pri_tc_tbl, priority);
 247                 if (ecore_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
 248                                                      protocol_id, &type,
 249                                                      ieee)) {
 250                         /* ETH always have the enable bit reset, as it gets
 251                          * vlan information per packet. For other protocols,
 252                          * should be set according to the dcbx_enabled
 253                          * indication, but we only got here if there was an
 254                          * app tlv for the protocol, so dcbx must be enabled.
 255                          */
 256                         enable = !(type == DCBX_PROTOCOL_ETH);
 257
 258                         ecore_dcbx_update_app_info(p_data, p_hwfn, enable,
 259                                                    priority, tc, type);
 260                 }
 261         }
 262         /* Update ramrod protocol data and hw_info fields
 263          * with default info when corresponding APP TLV's are not detected.
 264          * The enabled field has a different logic for ethernet as only for
 265          * ethernet dcb should disabled by default, as the information arrives
 266          * from the OS (unless an explicit app tlv was present).
 267          */
 268         tc = p_data->arr[DCBX_PROTOCOL_ETH].tc;
 269         priority = p_data->arr[DCBX_PROTOCOL_ETH].priority;
 270         for (type = 0; type < DCBX_MAX_PROTOCOL_TYPE; type++) {
 271                 if (p_data->arr[type].update)
 272                         continue;
 273
 274                 enable = (type == DCBX_PROTOCOL_ETH) ? false : !!dcbx_version;
 275                 ecore_dcbx_update_app_info(p_data, p_hwfn, enable,
 276                                            priority, tc, type);
 277         }
 278
 279         return ECORE_SUCCESS;
 280 }
 281
 282 /* Parse app TLV's to update TC information in hw_info structure for
 283  * reconfiguring QM. Get protocol specific data for PF update ramrod command.
 284  */
 285 static enum _ecore_status_t
 286 ecore_dcbx_process_mib_info(struct ecore_hwfn *p_hwfn)
 287 {
 288         struct dcbx_app_priority_feature *p_app;
 289         enum _ecore_status_t rc = ECORE_SUCCESS;
 290         struct ecore_dcbx_results data = { 0 };
 291         struct dcbx_app_priority_entry *p_tbl;
 292         struct dcbx_ets_feature *p_ets;
 293         struct ecore_hw_info *p_info;
 294         u32 pri_tc_tbl, flags;
 295         u8 dcbx_version;
 296         int num_entries;
 297
 298         flags = p_hwfn->p_dcbx_info->operational.flags;
 299         dcbx_version = ECORE_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION);
 300
 301         p_app = &p_hwfn->p_dcbx_info->operational.features.app;
 302         p_tbl = p_app->app_pri_tbl;
 303
 304         p_ets = &p_hwfn->p_dcbx_info->operational.features.ets;
 305         pri_tc_tbl = p_ets->pri_tc_tbl[0];
 306
 307         p_info = &p_hwfn->hw_info;
 308         num_entries = ECORE_MFW_GET_FIELD(p_app->flags, DCBX_APP_NUM_ENTRIES);
 309
 310         rc = ecore_dcbx_process_tlv(p_hwfn, &data, p_tbl, pri_tc_tbl,
 311                                     num_entries, dcbx_version);
 312         if (rc != ECORE_SUCCESS)
 313                 return rc;
 314
 315         p_info->num_active_tc = ECORE_MFW_GET_FIELD(p_ets->flags,
 316                                                     DCBX_ETS_MAX_TCS);
 317         p_hwfn->qm_info.ooo_tc = ECORE_MFW_GET_FIELD(p_ets->flags, DCBX_OOO_TC);
 318         data.pf_id = p_hwfn->rel_pf_id;
 319         data.dcbx_enabled = !!dcbx_version;
 320
 321         ecore_dcbx_dp_protocol(p_hwfn, &data);
 322
 323         OSAL_MEMCPY(&p_hwfn->p_dcbx_info->results, &data,
 324                     sizeof(struct ecore_dcbx_results));
 325
 326         return ECORE_SUCCESS;
 327 }
 328
 329 static enum _ecore_status_t
 330 ecore_dcbx_copy_mib(struct ecore_hwfn *p_hwfn,
 331                     struct ecore_ptt *p_ptt,
 332                     struct ecore_dcbx_mib_meta_data *p_data,
 333                     enum ecore_mib_read_type type)
 334 {
 335         enum _ecore_status_t rc = ECORE_SUCCESS;
 336         u32 prefix_seq_num, suffix_seq_num;
 337         int read_count = 0;
 338
 339         /* The data is considered to be valid only if both sequence numbers are
 340          * the same.
 341          */
 342         do {
 343                 if (type == ECORE_DCBX_REMOTE_LLDP_MIB) {
 344                         ecore_memcpy_from(p_hwfn, p_ptt, p_data->lldp_remote,
 345                                           p_data->addr, p_data->size);
 346                         prefix_seq_num = p_data->lldp_remote->prefix_seq_num;
 347                         suffix_seq_num = p_data->lldp_remote->suffix_seq_num;
 348                 } else {
 349                         ecore_memcpy_from(p_hwfn, p_ptt, p_data->mib,
 350                                           p_data->addr, p_data->size);
 351                         prefix_seq_num = p_data->mib->prefix_seq_num;
 352                         suffix_seq_num = p_data->mib->suffix_seq_num;
 353                 }
 354                 read_count++;
 355
 356                 DP_VERBOSE(p_hwfn, ECORE_MSG_DCB,
 357                            "mib type = %d, try count = %d prefix seq num  ="
 358                            " %d suffix seq num = %d\n",
 359                            type, read_count, prefix_seq_num, suffix_seq_num);
 360         } while ((prefix_seq_num != suffix_seq_num) &&
 361                  (read_count < ECORE_DCBX_MAX_MIB_READ_TRY));
 362
 363         if (read_count >= ECORE_DCBX_MAX_MIB_READ_TRY) {
 364                 DP_ERR(p_hwfn,
 365                        "MIB read err, mib type = %d, try count ="
 366                        " %d prefix seq num = %d suffix seq num = %d\n",
 367                        type, read_count, prefix_seq_num, suffix_seq_num);
 368                 rc = ECORE_IO;
 369         }
 370
 371         return rc;
 372 }
 373
 374 static void
 375 ecore_dcbx_get_priority_info(struct ecore_hwfn *p_hwfn,
 376                              struct ecore_dcbx_app_prio *p_prio,
 377                              struct ecore_dcbx_results *p_results)
 378 {
 379         u8 val;
 380
 381         if (p_results->arr[DCBX_PROTOCOL_ETH].update &&
 382             p_results->arr[DCBX_PROTOCOL_ETH].enable)
 383                 p_prio->eth = p_results->arr[DCBX_PROTOCOL_ETH].priority;
 384
 385         DP_VERBOSE(p_hwfn, ECORE_MSG_DCB,
 386                    "Priorities: eth %d\n",
 387                    p_prio->eth);
 388 }
 389
 390 static void
 391 ecore_dcbx_get_app_data(struct ecore_hwfn *p_hwfn,
 392                         struct dcbx_app_priority_feature *p_app,
 393                         struct dcbx_app_priority_entry *p_tbl,
 394                         struct ecore_dcbx_params *p_params, bool ieee)
 395 {
 396         struct ecore_app_entry *entry;
 397         u8 pri_map;
 398         int i;
 399
 400         p_params->app_willing = ECORE_MFW_GET_FIELD(p_app->flags,
 401                                                     DCBX_APP_WILLING);
 402         p_params->app_valid = ECORE_MFW_GET_FIELD(p_app->flags,
 403                                                   DCBX_APP_ENABLED);
 404         p_params->app_error = ECORE_MFW_GET_FIELD(p_app->flags, DCBX_APP_ERROR);
 405         p_params->num_app_entries = ECORE_MFW_GET_FIELD(p_app->flags,
 406                                                         DCBX_APP_NUM_ENTRIES);
 407         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
 408                 entry = &p_params->app_entry[i];
 409                 if (ieee) {
 410                         u8 sf_ieee;
 411                         u32 val;
 412
 413                         sf_ieee = ECORE_MFW_GET_FIELD(p_tbl[i].entry,
 414                                                       DCBX_APP_SF_IEEE);
 415                         switch (sf_ieee) {
 416                         case DCBX_APP_SF_IEEE_RESERVED:
 417                                 /* Old MFW */
 418                                 val = ECORE_MFW_GET_FIELD(p_tbl[i].entry,
 419                                                             DCBX_APP_SF);
 420                                 entry->sf_ieee = val ?
 421                                         ECORE_DCBX_SF_IEEE_TCP_UDP_PORT :
 422                                         ECORE_DCBX_SF_IEEE_ETHTYPE;
 423                                 break;
 424                         case DCBX_APP_SF_IEEE_ETHTYPE:
 425                                 entry->sf_ieee = ECORE_DCBX_SF_IEEE_ETHTYPE;
 426                                 break;
 427                         case DCBX_APP_SF_IEEE_TCP_PORT:
 428                                 entry->sf_ieee = ECORE_DCBX_SF_IEEE_TCP_PORT;
 429                                 break;
 430                         case DCBX_APP_SF_IEEE_UDP_PORT:
 431                                 entry->sf_ieee = ECORE_DCBX_SF_IEEE_UDP_PORT;
 432                                 break;
 433                         case DCBX_APP_SF_IEEE_TCP_UDP_PORT:
 434                                 entry->sf_ieee =
 435                                                 ECORE_DCBX_SF_IEEE_TCP_UDP_PORT;
 436                                 break;
 437                         }
 438                 } else {
 439                         entry->ethtype = !(ECORE_MFW_GET_FIELD(p_tbl[i].entry,
 440                                                                DCBX_APP_SF));
 441                 }
 442
 443                 pri_map = ECORE_MFW_GET_FIELD(p_tbl[i].entry, DCBX_APP_PRI_MAP);
 444                 ecore_dcbx_get_app_priority(pri_map, &entry->prio);
 445                 entry->proto_id = ECORE_MFW_GET_FIELD(p_tbl[i].entry,
 446                                                       DCBX_APP_PROTOCOL_ID);
 447                 ecore_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
 448                                                  entry->proto_id,
 449                                                  &entry->proto_type, ieee);
 450         }
 451
 452         DP_VERBOSE(p_hwfn, ECORE_MSG_DCB,
 453                    "APP params: willing %d, valid %d error = %d\n",
 454                    p_params->app_willing, p_params->app_valid,
 455                    p_params->app_error);
 456 }
 457
 458 static void
 459 ecore_dcbx_get_pfc_data(struct ecore_hwfn *p_hwfn,
 460                         u32 pfc, struct ecore_dcbx_params *p_params)
 461 {
 462         u8 pfc_map;
 463
 464         p_params->pfc.willing = ECORE_MFW_GET_FIELD(pfc, DCBX_PFC_WILLING);
 465         p_params->pfc.max_tc = ECORE_MFW_GET_FIELD(pfc, DCBX_PFC_CAPS);
 466         p_params->pfc.enabled = ECORE_MFW_GET_FIELD(pfc, DCBX_PFC_ENABLED);
 467         pfc_map = ECORE_MFW_GET_FIELD(pfc, DCBX_PFC_PRI_EN_BITMAP);
 468         p_params->pfc.prio[0] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_0);
 469         p_params->pfc.prio[1] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_1);
 470         p_params->pfc.prio[2] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_2);
 471         p_params->pfc.prio[3] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_3);
 472         p_params->pfc.prio[4] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_4);
 473         p_params->pfc.prio[5] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_5);
 474         p_params->pfc.prio[6] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_6);
 475         p_params->pfc.prio[7] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_7);
 476
 477         DP_VERBOSE(p_hwfn, ECORE_MSG_DCB,
 478                    "PFC params: willing %d, pfc_bitmap %u max_tc = %u enabled = %d\n",
 479                    p_params->pfc.willing, pfc_map, p_params->pfc.max_tc,
 480                    p_params->pfc.enabled);
 481 }
 482
 483 static void
 484 ecore_dcbx_get_ets_data(struct ecore_hwfn *p_hwfn,
 485                         struct dcbx_ets_feature *p_ets,
 486                         struct ecore_dcbx_params *p_params)
 487 {
 488         u32 bw_map[2], tsa_map[2], pri_map;
 489         int i;
 490
 491         p_params->ets_willing = ECORE_MFW_GET_FIELD(p_ets->flags,
 492                                                     DCBX_ETS_WILLING);
 493         p_params->ets_enabled = ECORE_MFW_GET_FIELD(p_ets->flags,
 494                                                     DCBX_ETS_ENABLED);
 495         p_params->ets_cbs = ECORE_MFW_GET_FIELD(p_ets->flags, DCBX_ETS_CBS);
 496         p_params->max_ets_tc = ECORE_MFW_GET_FIELD(p_ets->flags,
 497                                                    DCBX_ETS_MAX_TCS);
 498         DP_VERBOSE(p_hwfn, ECORE_MSG_DCB,
 499                    "ETS params: willing %d, enabled = %d ets_cbs %d pri_tc_tbl_0 %x max_ets_tc %d\n",
 500                    p_params->ets_willing, p_params->ets_enabled,
 501                    p_params->ets_cbs, p_ets->pri_tc_tbl[0],
 502                    p_params->max_ets_tc);
 503
 504         /* 8 bit tsa and bw data corresponding to each of the 8 TC's are
 505          * encoded in a type u32 array of size 2.
 506          */
 507         bw_map[0] = OSAL_BE32_TO_CPU(p_ets->tc_bw_tbl[0]);
 508         bw_map[1] = OSAL_BE32_TO_CPU(p_ets->tc_bw_tbl[1]);
 509         tsa_map[0] = OSAL_BE32_TO_CPU(p_ets->tc_tsa_tbl[0]);
 510         tsa_map[1] = OSAL_BE32_TO_CPU(p_ets->tc_tsa_tbl[1]);
 511         pri_map = p_ets->pri_tc_tbl[0];
 512         for (i = 0; i < ECORE_MAX_PFC_PRIORITIES; i++) {
 513                 p_params->ets_tc_bw_tbl[i] = ((u8 *)bw_map)[i];
 514                 p_params->ets_tc_tsa_tbl[i] = ((u8 *)tsa_map)[i];
 515                 p_params->ets_pri_tc_tbl[i] = ECORE_DCBX_PRIO2TC(pri_map, i);
 516                 DP_VERBOSE(p_hwfn, ECORE_MSG_DCB,
 517                            "elem %d  bw_tbl %x tsa_tbl %x\n",
 518                            i, p_params->ets_tc_bw_tbl[i],
 519                            p_params->ets_tc_tsa_tbl[i]);
 520         }
 521 }
 522
 523 static void
 524 ecore_dcbx_get_common_params(struct ecore_hwfn *p_hwfn,
 525                              struct dcbx_app_priority_feature *p_app,
 526                              struct dcbx_app_priority_entry *p_tbl,
 527                              struct dcbx_ets_feature *p_ets,
 528                              u32 pfc, struct ecore_dcbx_params *p_params,
 529                              bool ieee)
 530 {
 531         ecore_dcbx_get_app_data(p_hwfn, p_app, p_tbl, p_params, ieee);
 532         ecore_dcbx_get_ets_data(p_hwfn, p_ets, p_params);
 533         ecore_dcbx_get_pfc_data(p_hwfn, pfc, p_params);
 534 }
 535
 536 static void
 537 ecore_dcbx_get_local_params(struct ecore_hwfn *p_hwfn,
 538                             struct ecore_ptt *p_ptt,
 539                             struct ecore_dcbx_get *params)
 540 {
 541         struct dcbx_features *p_feat;
 542
 543         p_feat = &p_hwfn->p_dcbx_info->local_admin.features;
 544         ecore_dcbx_get_common_params(p_hwfn, &p_feat->app,
 545                                      p_feat->app.app_pri_tbl, &p_feat->ets,
 546                                      p_feat->pfc, &params->local.params, false);
 547         params->local.valid = true;
 548 }
 549
 550 static void
 551 ecore_dcbx_get_remote_params(struct ecore_hwfn *p_hwfn,
 552                              struct ecore_ptt *p_ptt,
 553                              struct ecore_dcbx_get *params)
 554 {
 555         struct dcbx_features *p_feat;
 556
 557         p_feat = &p_hwfn->p_dcbx_info->remote.features;
 558         ecore_dcbx_get_common_params(p_hwfn, &p_feat->app,
 559                                      p_feat->app.app_pri_tbl, &p_feat->ets,
 560                                      p_feat->pfc, &params->remote.params,
 561                                      false);
 562         params->remote.valid = true;
 563 }
 564
 565 static enum _ecore_status_t
 566 ecore_dcbx_get_operational_params(struct ecore_hwfn *p_hwfn,
 567                                   struct ecore_ptt *p_ptt,
 568                                   struct ecore_dcbx_get *params)
 569 {
 570         struct ecore_dcbx_operational_params *p_operational;
 571         struct ecore_dcbx_results *p_results;
 572         struct dcbx_features *p_feat;
 573         bool enabled, err;
 574         u32 flags;
 575         bool val;
 576
 577         flags = p_hwfn->p_dcbx_info->operational.flags;
 578
 579         /* If DCBx version is non zero, then negotiation
 580          * was successfuly performed
 581          */
 582         p_operational = &params->operational;
 583         enabled = !!(ECORE_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) !=
 584                      DCBX_CONFIG_VERSION_DISABLED);
 585         if (!enabled) {
 586                 p_operational->enabled = enabled;
 587                 p_operational->valid = false;
 588                 DP_VERBOSE(p_hwfn, ECORE_MSG_DCB, "Dcbx is disabled\n");
 589                 return ECORE_INVAL;
 590         }
 591
 592         p_feat = &p_hwfn->p_dcbx_info->operational.features;
 593         p_results = &p_hwfn->p_dcbx_info->results;
 594
 595         val = !!(ECORE_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
 596                  DCBX_CONFIG_VERSION_IEEE);
 597         p_operational->ieee = val;
 598
 599         val = !!(ECORE_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
 600                  DCBX_CONFIG_VERSION_CEE);
 601         p_operational->cee = val;
 602
 603         val = !!(ECORE_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
 604                  DCBX_CONFIG_VERSION_STATIC);
 605         p_operational->local = val;
 606
 607         DP_VERBOSE(p_hwfn, ECORE_MSG_DCB,
 608                    "Version support: ieee %d, cee %d, static %d\n",
 609                    p_operational->ieee, p_operational->cee,
 610                    p_operational->local);
 611
 612         ecore_dcbx_get_common_params(p_hwfn, &p_feat->app,
 613                                      p_feat->app.app_pri_tbl, &p_feat->ets,
 614                                      p_feat->pfc, &params->operational.params,
 615                                      p_operational->ieee);
 616         ecore_dcbx_get_priority_info(p_hwfn, &p_operational->app_prio,
 617                                      p_results);
 618         err = ECORE_MFW_GET_FIELD(p_feat->app.flags, DCBX_APP_ERROR);
 619         p_operational->err = err;
 620         p_operational->enabled = enabled;
 621         p_operational->valid = true;
 622
 623         return ECORE_SUCCESS;
 624 }
 625
 626 static void
 627 ecore_dcbx_get_dscp_params(struct ecore_hwfn *p_hwfn,
 628                            struct ecore_ptt *p_ptt,
 629                            struct ecore_dcbx_get *params)
 630 {
 631         struct ecore_dcbx_dscp_params *p_dscp;
 632         struct dcb_dscp_map *p_dscp_map;
 633         int i, j, entry;
 634         u32 pri_map;
 635
 636         p_dscp = &params->dscp;
 637         p_dscp_map = &p_hwfn->p_dcbx_info->dscp_map;
 638         p_dscp->enabled = ECORE_MFW_GET_FIELD(p_dscp_map->flags,
 639                                               DCB_DSCP_ENABLE);
 640         /* MFW encodes 64 dscp entries into 8 element array of u32 entries,
 641          * where each entry holds the 4bit priority map for 8 dscp entries.
 642          */
 643         for (i = 0, entry = 0; i < ECORE_DCBX_DSCP_SIZE / 8; i++) {
 644                 pri_map = OSAL_BE32_TO_CPU(p_dscp_map->dscp_pri_map[i]);
 645                 DP_VERBOSE(p_hwfn, ECORE_MSG_DCB, "elem %d pri_map 0x%x\n",
 646                            entry, pri_map);
 647                 for (j = 0; j < ECORE_DCBX_DSCP_SIZE / 8; j++, entry++)
 648                         p_dscp->dscp_pri_map[entry] = (u32)(pri_map >>
 649                                                            (j * 4)) & 0xf;
 650         }
 651 }
 652
 653 static void
 654 ecore_dcbx_get_local_lldp_params(struct ecore_hwfn *p_hwfn,
 655                                  struct ecore_ptt *p_ptt,
 656                                  struct ecore_dcbx_get *params)
 657 {
 658         struct lldp_config_params_s *p_local;
 659
 660         p_local = &p_hwfn->p_dcbx_info->lldp_local[LLDP_NEAREST_BRIDGE];
 661
 662         OSAL_MEMCPY(params->lldp_local.local_chassis_id,
 663                     p_local->local_chassis_id,
 664                     OSAL_ARRAY_SIZE(p_local->local_chassis_id));
 665         OSAL_MEMCPY(params->lldp_local.local_port_id, p_local->local_port_id,
 666                     OSAL_ARRAY_SIZE(p_local->local_port_id));
 667 }
 668
 669 static void
 670 ecore_dcbx_get_remote_lldp_params(struct ecore_hwfn *p_hwfn,
 671                                   struct ecore_ptt *p_ptt,
 672                                   struct ecore_dcbx_get *params)
 673 {
 674         struct lldp_status_params_s *p_remote;
 675
 676         p_remote = &p_hwfn->p_dcbx_info->lldp_remote[LLDP_NEAREST_BRIDGE];
 677
 678         OSAL_MEMCPY(params->lldp_remote.peer_chassis_id,
 679                     p_remote->peer_chassis_id,
 680                     OSAL_ARRAY_SIZE(p_remote->peer_chassis_id));
 681         OSAL_MEMCPY(params->lldp_remote.peer_port_id, p_remote->peer_port_id,
 682                     OSAL_ARRAY_SIZE(p_remote->peer_port_id));
 683 }
 684
 685 static enum _ecore_status_t
 686 ecore_dcbx_get_params(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt,
 687                       struct ecore_dcbx_get *p_params,
 688                       enum ecore_mib_read_type type)
 689 {
 690         enum _ecore_status_t rc = ECORE_SUCCESS;
 691
 692         switch (type) {
 693         case ECORE_DCBX_REMOTE_MIB:
 694                 ecore_dcbx_get_remote_params(p_hwfn, p_ptt, p_params);
 695                 break;
 696         case ECORE_DCBX_LOCAL_MIB:
 697                 ecore_dcbx_get_local_params(p_hwfn, p_ptt, p_params);
 698                 break;
 699         case ECORE_DCBX_OPERATIONAL_MIB:
 700                 ecore_dcbx_get_operational_params(p_hwfn, p_ptt, p_params);
 701                 break;
 702         case ECORE_DCBX_REMOTE_LLDP_MIB:
 703                 ecore_dcbx_get_remote_lldp_params(p_hwfn, p_ptt, p_params);
 704                 break;
 705         case ECORE_DCBX_LOCAL_LLDP_MIB:
 706                 ecore_dcbx_get_local_lldp_params(p_hwfn, p_ptt, p_params);
 707                 break;
 708         default:
 709                 DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
 710                 return ECORE_INVAL;
 711         }
 712
 713         return rc;
 714 }
 715
 716 static enum _ecore_status_t
 717 ecore_dcbx_read_local_lldp_mib(struct ecore_hwfn *p_hwfn,
 718                                struct ecore_ptt *p_ptt)
 719 {
 720         struct ecore_dcbx_mib_meta_data data;
 721         enum _ecore_status_t rc = ECORE_SUCCESS;
 722
 723         OSAL_MEM_ZERO(&data, sizeof(data));
 724         data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
 725                                                            lldp_config_params);
 726         data.lldp_local = p_hwfn->p_dcbx_info->lldp_local;
 727         data.size = sizeof(struct lldp_config_params_s);
 728         ecore_memcpy_from(p_hwfn, p_ptt, data.lldp_local, data.addr, data.size);
 729
 730         return rc;
 731 }
 732
 733 static enum _ecore_status_t
 734 ecore_dcbx_read_remote_lldp_mib(struct ecore_hwfn *p_hwfn,
 735                                 struct ecore_ptt *p_ptt,
 736                                 enum ecore_mib_read_type type)
 737 {
 738         struct ecore_dcbx_mib_meta_data data;
 739         enum _ecore_status_t rc = ECORE_SUCCESS;
 740
 741         OSAL_MEM_ZERO(&data, sizeof(data));
 742         data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
 743                                                            lldp_status_params);
 744         data.lldp_remote = p_hwfn->p_dcbx_info->lldp_remote;
 745         data.size = sizeof(struct lldp_status_params_s);
 746         rc = ecore_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 747
 748         return rc;
 749 }
 750
 751 static enum _ecore_status_t
 752 ecore_dcbx_read_operational_mib(struct ecore_hwfn *p_hwfn,
 753                                 struct ecore_ptt *p_ptt,
 754                                 enum ecore_mib_read_type type)
 755 {
 756         struct ecore_dcbx_mib_meta_data data;
 757         enum _ecore_status_t rc = ECORE_SUCCESS;
 758
 759         OSAL_MEM_ZERO(&data, sizeof(data));
 760         data.addr = p_hwfn->mcp_info->port_addr +
 761             offsetof(struct public_port, operational_dcbx_mib);
 762         data.mib = &p_hwfn->p_dcbx_info->operational;
 763         data.size = sizeof(struct dcbx_mib);
 764         rc = ecore_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 765
 766         return rc;
 767 }
 768
 769 static enum _ecore_status_t
 770 ecore_dcbx_read_remote_mib(struct ecore_hwfn *p_hwfn,
 771                            struct ecore_ptt *p_ptt,
 772                            enum ecore_mib_read_type type)
 773 {
 774         struct ecore_dcbx_mib_meta_data data;
 775         enum _ecore_status_t rc = ECORE_SUCCESS;
 776
 777         OSAL_MEM_ZERO(&data, sizeof(data));
 778         data.addr = p_hwfn->mcp_info->port_addr +
 779             offsetof(struct public_port, remote_dcbx_mib);
 780         data.mib = &p_hwfn->p_dcbx_info->remote;
 781         data.size = sizeof(struct dcbx_mib);
 782         rc = ecore_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 783
 784         return rc;
 785 }
 786
 787 static enum _ecore_status_t
 788 ecore_dcbx_read_local_mib(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt)
 789 {
 790         struct ecore_dcbx_mib_meta_data data;
 791         enum _ecore_status_t rc = ECORE_SUCCESS;
 792
 793         OSAL_MEM_ZERO(&data, sizeof(data));
 794         data.addr = p_hwfn->mcp_info->port_addr +
 795             offsetof(struct public_port, local_admin_dcbx_mib);
 796         data.local_admin = &p_hwfn->p_dcbx_info->local_admin;
 797         data.size = sizeof(struct dcbx_local_params);
 798         ecore_memcpy_from(p_hwfn, p_ptt, data.local_admin,
 799                           data.addr, data.size);
 800
 801         return rc;
 802 }
 803
 804 static void
 805 ecore_dcbx_read_dscp_mib(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt)
 806 {
 807         struct ecore_dcbx_mib_meta_data data;
 808
 809         data.addr = p_hwfn->mcp_info->port_addr +
 810                         offsetof(struct public_port, dcb_dscp_map);
 811         data.dscp_map = &p_hwfn->p_dcbx_info->dscp_map;
 812         data.size = sizeof(struct dcb_dscp_map);
 813         ecore_memcpy_from(p_hwfn, p_ptt, data.dscp_map, data.addr, data.size);
 814 }
 815
 816 static enum _ecore_status_t ecore_dcbx_read_mib(struct ecore_hwfn *p_hwfn,
 817                                                 struct ecore_ptt *p_ptt,
 818                                                 enum ecore_mib_read_type type)
 819 {
 820         enum _ecore_status_t rc = ECORE_INVAL;
 821
 822         switch (type) {
 823         case ECORE_DCBX_OPERATIONAL_MIB:
 824                 ecore_dcbx_read_dscp_mib(p_hwfn, p_ptt);
 825                 rc = ecore_dcbx_read_operational_mib(p_hwfn, p_ptt, type);
 826                 break;
 827         case ECORE_DCBX_REMOTE_MIB:
 828                 rc = ecore_dcbx_read_remote_mib(p_hwfn, p_ptt, type);
 829                 break;
 830         case ECORE_DCBX_LOCAL_MIB:
 831                 rc = ecore_dcbx_read_local_mib(p_hwfn, p_ptt);
 832                 break;
 833         case ECORE_DCBX_REMOTE_LLDP_MIB:
 834                 rc = ecore_dcbx_read_remote_lldp_mib(p_hwfn, p_ptt, type);
 835                 break;
 836         case ECORE_DCBX_LOCAL_LLDP_MIB:
 837                 rc = ecore_dcbx_read_local_lldp_mib(p_hwfn, p_ptt);
 838                 break;
 839         default:
 840                 DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
 841         }
 842
 843         return rc;
 844 }
 845
 846 /*
 847  * Read updated MIB.
 848  * Reconfigure QM and invoke PF update ramrod command if operational MIB
 849  * change is detected.
 850  */
 851 enum _ecore_status_t
 852 ecore_dcbx_mib_update_event(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt,
 853                             enum ecore_mib_read_type type)
 854 {
 855         enum _ecore_status_t rc = ECORE_SUCCESS;
 856
 857         rc = ecore_dcbx_read_mib(p_hwfn, p_ptt, type);
 858         if (rc)
 859                 return rc;
 860
 861         if (type == ECORE_DCBX_OPERATIONAL_MIB) {
 862                 ecore_dcbx_get_dscp_params(p_hwfn, p_ptt,
 863                                            &p_hwfn->p_dcbx_info->get);
 864
 865                 rc = ecore_dcbx_process_mib_info(p_hwfn);
 866                 if (!rc) {
 867                         bool enabled;
 868
 869                         /* reconfigure tcs of QM queues according
 870                          * to negotiation results
 871                          */
 872                         ecore_qm_reconf(p_hwfn, p_ptt);
 873
 874                         /* update storm FW with negotiation results */
 875                         ecore_sp_pf_update(p_hwfn);
 876
 877                         /* set eagle enigne 1 flow control workaround
 878                          * according to negotiation results
 879                          */
 880                         enabled = p_hwfn->p_dcbx_info->results.dcbx_enabled;
 881                 }
 882         }
 883         ecore_dcbx_get_params(p_hwfn, p_ptt, &p_hwfn->p_dcbx_info->get, type);
 884
 885         /* Update the DSCP to TC mapping bit if required */
 886         if ((type == ECORE_DCBX_OPERATIONAL_MIB) &&
 887             p_hwfn->p_dcbx_info->dscp_nig_update) {
 888                 ecore_wr(p_hwfn, p_ptt, NIG_REG_DSCP_TO_TC_MAP_ENABLE, 0x1);
 889                 p_hwfn->p_dcbx_info->dscp_nig_update = false;
 890         }
 891
 892         OSAL_DCBX_AEN(p_hwfn, type);
 893
 894         return rc;
 895 }
 896
 897 enum _ecore_status_t ecore_dcbx_info_alloc(struct ecore_hwfn *p_hwfn)
 898 {
 899         enum _ecore_status_t rc = ECORE_SUCCESS;
 900
 901         p_hwfn->p_dcbx_info = OSAL_ZALLOC(p_hwfn->p_dev, GFP_KERNEL,
 902                                           sizeof(*p_hwfn->p_dcbx_info));
 903         if (!p_hwfn->p_dcbx_info) {
 904                 DP_NOTICE(p_hwfn, true,
 905                           "Failed to allocate `struct ecore_dcbx_info'");
 906                 rc = ECORE_NOMEM;
 907         }
 908
 909         return rc;
 910 }
 911
 912 void ecore_dcbx_info_free(struct ecore_hwfn *p_hwfn,
 913                           struct ecore_dcbx_info *p_dcbx_info)
 914 {
 915         OSAL_FREE(p_hwfn->p_dev, p_hwfn->p_dcbx_info);
 916 }
 917
 918 static void ecore_dcbx_update_protocol_data(struct protocol_dcb_data *p_data,
 919                                             struct ecore_dcbx_results *p_src,
 920                                             enum dcbx_protocol_type type)
 921 {
 922         p_data->dcb_enable_flag = p_src->arr[type].enable;
 923         p_data->dcb_priority = p_src->arr[type].priority;
 924         p_data->dcb_tc = p_src->arr[type].tc;
 925         p_data->dscp_enable_flag = p_src->arr[type].dscp_enable;
 926         p_data->dscp_val = p_src->arr[type].dscp_val;
 927 }
 928
 929 /* Set pf update ramrod command params */
 930 void ecore_dcbx_set_pf_update_params(struct ecore_dcbx_results *p_src,
 931                                      struct pf_update_ramrod_data *p_dest)
 932 {
 933         struct protocol_dcb_data *p_dcb_data;
 934         u8 update_flag;
 935
 936         p_dest->pf_id = p_src->pf_id;
 937
 938         update_flag = p_src->arr[DCBX_PROTOCOL_ETH].update;
 939         p_dest->update_eth_dcb_data_mode = update_flag;
 940
 941         p_dcb_data = &p_dest->eth_dcb_data;
 942         ecore_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ETH);
 943 }
 944
 945 enum _ecore_status_t ecore_dcbx_query_params(struct ecore_hwfn *p_hwfn,
 946                                              struct ecore_dcbx_get *p_get,
 947                                              enum ecore_mib_read_type type)
 948 {
 949         struct ecore_ptt *p_ptt;
 950         enum _ecore_status_t rc;
 951
 952         if (IS_VF(p_hwfn->p_dev))
 953                 return ECORE_INVAL;
 954
 955         p_ptt = ecore_ptt_acquire(p_hwfn);
 956         if (!p_ptt) {
 957                 rc = ECORE_TIMEOUT;
 958                 DP_ERR(p_hwfn, "rc = %d\n", rc);
 959                 return rc;
 960         }
 961
 962         rc = ecore_dcbx_read_mib(p_hwfn, p_ptt, type);
 963         if (rc != ECORE_SUCCESS)
 964                 goto out;
 965
 966         rc = ecore_dcbx_get_params(p_hwfn, p_ptt, p_get, type);
 967
 968 out:
 969         ecore_ptt_release(p_hwfn, p_ptt);
 970         return rc;
 971 }
 972
 973 static void
 974 ecore_dcbx_set_pfc_data(struct ecore_hwfn *p_hwfn,
 975                         u32 *pfc, struct ecore_dcbx_params *p_params)
 976 {
 977         u8 pfc_map = 0;
 978         int i;
 979
 980         if (p_params->pfc.willing)
 981                 *pfc |= DCBX_PFC_WILLING_MASK;
 982         else
 983                 *pfc &= ~DCBX_PFC_WILLING_MASK;
 984
 985         if (p_params->pfc.enabled)
 986                 *pfc |= DCBX_PFC_ENABLED_MASK;
 987         else
 988                 *pfc &= ~DCBX_PFC_ENABLED_MASK;
 989
 990         *pfc &= ~DCBX_PFC_CAPS_MASK;
 991         *pfc |= (u32)p_params->pfc.max_tc << DCBX_PFC_CAPS_SHIFT;
 992
 993         for (i = 0; i < ECORE_MAX_PFC_PRIORITIES; i++)
 994                 if (p_params->pfc.prio[i])
 995                         pfc_map |= (1 << i);
 996         *pfc &= ~DCBX_PFC_PRI_EN_BITMAP_MASK;
 997         *pfc |= (pfc_map << DCBX_PFC_PRI_EN_BITMAP_SHIFT);
 998
 999         DP_VERBOSE(p_hwfn, ECORE_MSG_DCB, "pfc = 0x%x\n", *pfc);
1000 }
1001
1002 static void
1003 ecore_dcbx_set_ets_data(struct ecore_hwfn *p_hwfn,
1004                         struct dcbx_ets_feature *p_ets,
1005                         struct ecore_dcbx_params *p_params)
1006 {
1007         u8 *bw_map, *tsa_map;
1008         u32 val;
1009         int i;
1010
1011         if (p_params->ets_willing)
1012                 p_ets->flags |= DCBX_ETS_WILLING_MASK;
1013         else
1014                 p_ets->flags &= ~DCBX_ETS_WILLING_MASK;
1015
1016         if (p_params->ets_cbs)
1017                 p_ets->flags |= DCBX_ETS_CBS_MASK;
1018         else
1019                 p_ets->flags &= ~DCBX_ETS_CBS_MASK;
1020
1021         if (p_params->ets_enabled)
1022                 p_ets->flags |= DCBX_ETS_ENABLED_MASK;
1023         else
1024                 p_ets->flags &= ~DCBX_ETS_ENABLED_MASK;
1025
1026         p_ets->flags &= ~DCBX_ETS_MAX_TCS_MASK;
1027         p_ets->flags |= (u32)p_params->max_ets_tc << DCBX_ETS_MAX_TCS_SHIFT;
1028
1029         bw_map = (u8 *)&p_ets->tc_bw_tbl[0];
1030         tsa_map = (u8 *)&p_ets->tc_tsa_tbl[0];
1031         p_ets->pri_tc_tbl[0] = 0;
1032         for (i = 0; i < ECORE_MAX_PFC_PRIORITIES; i++) {
1033                 bw_map[i] = p_params->ets_tc_bw_tbl[i];
1034                 tsa_map[i] = p_params->ets_tc_tsa_tbl[i];
1035                 /* Copy the priority value to the corresponding 4 bits in the
1036                  * traffic class table.
1037                  */
1038                 val = (((u32)p_params->ets_pri_tc_tbl[i]) << ((7 - i) * 4));
1039                 p_ets->pri_tc_tbl[0] |= val;
1040         }
1041         for (i = 0; i < 2; i++) {
1042                 p_ets->tc_bw_tbl[i] = OSAL_CPU_TO_BE32(p_ets->tc_bw_tbl[i]);
1043                 p_ets->tc_tsa_tbl[i] = OSAL_CPU_TO_BE32(p_ets->tc_tsa_tbl[i]);
1044         }
1045
1046         DP_VERBOSE(p_hwfn, ECORE_MSG_DCB,
1047                    "flags = 0x%x pri_tc = 0x%x tc_bwl[] = {0x%x, 0x%x} tc_tsa = {0x%x, 0x%x}\n",
1048                    p_ets->flags, p_ets->pri_tc_tbl[0], p_ets->tc_bw_tbl[0],
1049                    p_ets->tc_bw_tbl[1], p_ets->tc_tsa_tbl[0],
1050                    p_ets->tc_tsa_tbl[1]);
1051 }
1052
1053 static void
1054 ecore_dcbx_set_app_data(struct ecore_hwfn *p_hwfn,
1055                         struct dcbx_app_priority_feature *p_app,
1056                         struct ecore_dcbx_params *p_params, bool ieee)
1057 {
1058         u32 *entry;
1059         int i;
1060
1061         if (p_params->app_willing)
1062                 p_app->flags |= DCBX_APP_WILLING_MASK;
1063         else
1064                 p_app->flags &= ~DCBX_APP_WILLING_MASK;
1065
1066         if (p_params->app_valid)
1067                 p_app->flags |= DCBX_APP_ENABLED_MASK;
1068         else
1069                 p_app->flags &= ~DCBX_APP_ENABLED_MASK;
1070
1071         p_app->flags &= ~DCBX_APP_NUM_ENTRIES_MASK;
1072         p_app->flags |= (u32)p_params->num_app_entries <<
1073                                         DCBX_APP_NUM_ENTRIES_SHIFT;
1074
1075         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
1076                 entry = &p_app->app_pri_tbl[i].entry;
1077                 *entry = 0;
1078                 if (ieee) {
1079                         *entry &= ~(DCBX_APP_SF_IEEE_MASK | DCBX_APP_SF_MASK);
1080                         switch (p_params->app_entry[i].sf_ieee) {
1081                         case ECORE_DCBX_SF_IEEE_ETHTYPE:
1082                                 *entry  |= ((u32)DCBX_APP_SF_IEEE_ETHTYPE <<
1083                                             DCBX_APP_SF_IEEE_SHIFT);
1084                                 *entry  |= ((u32)DCBX_APP_SF_ETHTYPE <<
1085                                             DCBX_APP_SF_SHIFT);
1086                                 break;
1087                         case ECORE_DCBX_SF_IEEE_TCP_PORT:
1088                                 *entry  |= ((u32)DCBX_APP_SF_IEEE_TCP_PORT <<
1089                                             DCBX_APP_SF_IEEE_SHIFT);
1090                                 *entry  |= ((u32)DCBX_APP_SF_PORT <<
1091                                             DCBX_APP_SF_SHIFT);
1092                                 break;
1093                         case ECORE_DCBX_SF_IEEE_UDP_PORT:
1094                                 *entry  |= ((u32)DCBX_APP_SF_IEEE_UDP_PORT <<
1095                                             DCBX_APP_SF_IEEE_SHIFT);
1096                                 *entry  |= ((u32)DCBX_APP_SF_PORT <<
1097                                             DCBX_APP_SF_SHIFT);
1098                                 break;
1099                         case ECORE_DCBX_SF_IEEE_TCP_UDP_PORT:
1100                                 *entry  |= (u32)DCBX_APP_SF_IEEE_TCP_UDP_PORT <<
1101                                             DCBX_APP_SF_IEEE_SHIFT;
1102                                 *entry  |= ((u32)DCBX_APP_SF_PORT <<
1103                                             DCBX_APP_SF_SHIFT);
1104                                 break;
1105                         }
1106                 } else {
1107                         *entry &= ~DCBX_APP_SF_MASK;
1108                         if (p_params->app_entry[i].ethtype)
1109                                 *entry  |= ((u32)DCBX_APP_SF_ETHTYPE <<
1110                                             DCBX_APP_SF_SHIFT);
1111                         else
1112                                 *entry  |= ((u32)DCBX_APP_SF_PORT <<
1113                                             DCBX_APP_SF_SHIFT);
1114                 }
1115                 *entry &= ~DCBX_APP_PROTOCOL_ID_MASK;
1116                 *entry |= ((u32)p_params->app_entry[i].proto_id <<
1117                                 DCBX_APP_PROTOCOL_ID_SHIFT);
1118                 *entry &= ~DCBX_APP_PRI_MAP_MASK;
1119                 *entry |= ((u32)(p_params->app_entry[i].prio) <<
1120                                 DCBX_APP_PRI_MAP_SHIFT);
1121         }
1122
1123         DP_VERBOSE(p_hwfn, ECORE_MSG_DCB, "flags = 0x%x\n", p_app->flags);
1124 }
1125
1126 static enum _ecore_status_t
1127 ecore_dcbx_set_local_params(struct ecore_hwfn *p_hwfn,
1128                             struct dcbx_local_params *local_admin,
1129                             struct ecore_dcbx_set *params)
1130 {
1131         bool ieee = false;
1132
1133         local_admin->flags = 0;
1134         OSAL_MEMCPY(&local_admin->features,
1135                     &p_hwfn->p_dcbx_info->operational.features,
1136                     sizeof(local_admin->features));
1137
1138         if (params->enabled) {
1139                 local_admin->config = params->ver_num;
1140                 ieee = !!(params->ver_num & DCBX_CONFIG_VERSION_IEEE);
1141         } else {
1142                 local_admin->config = DCBX_CONFIG_VERSION_DISABLED;
1143         }
1144
1145         if (params->override_flags & ECORE_DCBX_OVERRIDE_PFC_CFG)
1146                 ecore_dcbx_set_pfc_data(p_hwfn, &local_admin->features.pfc,
1147                                         &params->config.params);
1148
1149         if (params->override_flags & ECORE_DCBX_OVERRIDE_ETS_CFG)
1150                 ecore_dcbx_set_ets_data(p_hwfn, &local_admin->features.ets,
1151                                         &params->config.params);
1152
1153         if (params->override_flags & ECORE_DCBX_OVERRIDE_APP_CFG)
1154                 ecore_dcbx_set_app_data(p_hwfn, &local_admin->features.app,
1155                                         &params->config.params, ieee);
1156
1157         return ECORE_SUCCESS;
1158 }
1159
1160 static enum _ecore_status_t
1161 ecore_dcbx_set_dscp_params(struct ecore_hwfn *p_hwfn,
1162                            struct dcb_dscp_map *p_dscp_map,
1163                            struct ecore_dcbx_set *p_params)
1164 {
1165         int entry, i, j;
1166         u32 val;
1167
1168         OSAL_MEMCPY(p_dscp_map, &p_hwfn->p_dcbx_info->dscp_map,
1169                     sizeof(*p_dscp_map));
1170
1171         p_dscp_map->flags &= ~DCB_DSCP_ENABLE_MASK;
1172         if (p_params->dscp.enabled)
1173                 p_dscp_map->flags |= DCB_DSCP_ENABLE_MASK;
1174
1175         for (i = 0, entry = 0; i < 8; i++) {
1176                 val = 0;
1177                 for (j = 0; j < 8; j++, entry++)
1178                         val |= (((u32)p_params->dscp.dscp_pri_map[entry]) <<
1179                                 (j * 4));
1180
1181                 p_dscp_map->dscp_pri_map[i] = OSAL_CPU_TO_BE32(val);
1182         }
1183
1184         p_hwfn->p_dcbx_info->dscp_nig_update = true;
1185
1186         DP_VERBOSE(p_hwfn, ECORE_MSG_DCB, "flags = 0x%x\n", p_dscp_map->flags);
1187
1188         return ECORE_SUCCESS;
1189 }
1190
1191 enum _ecore_status_t ecore_dcbx_config_params(struct ecore_hwfn *p_hwfn,
1192                                               struct ecore_ptt *p_ptt,
1193                                               struct ecore_dcbx_set *params,
1194                                               bool hw_commit)
1195 {
1196         struct dcbx_local_params local_admin;
1197         struct ecore_dcbx_mib_meta_data data;
1198         struct dcb_dscp_map dscp_map;
1199         u32 resp = 0, param = 0;
1200         enum _ecore_status_t rc = ECORE_SUCCESS;
1201
1202         if (!hw_commit) {
1203                 OSAL_MEMCPY(&p_hwfn->p_dcbx_info->set, params,
1204                             sizeof(p_hwfn->p_dcbx_info->set));
1205                 return ECORE_SUCCESS;
1206         }
1207
1208         /* clear set-parmas cache */
1209         OSAL_MEMSET(&p_hwfn->p_dcbx_info->set, 0,
1210                     sizeof(struct ecore_dcbx_set));
1211
1212         OSAL_MEMSET(&local_admin, 0, sizeof(local_admin));
1213         ecore_dcbx_set_local_params(p_hwfn, &local_admin, params);
1214
1215         data.addr = p_hwfn->mcp_info->port_addr +
1216                         offsetof(struct public_port, local_admin_dcbx_mib);
1217         data.local_admin = &local_admin;
1218         data.size = sizeof(struct dcbx_local_params);
1219         ecore_memcpy_to(p_hwfn, p_ptt, data.addr, data.local_admin, data.size);
1220
1221         if (params->override_flags & ECORE_DCBX_OVERRIDE_DSCP_CFG) {
1222                 OSAL_MEMSET(&dscp_map, 0, sizeof(dscp_map));
1223                 ecore_dcbx_set_dscp_params(p_hwfn, &dscp_map, params);
1224
1225                 data.addr = p_hwfn->mcp_info->port_addr +
1226                                 offsetof(struct public_port, dcb_dscp_map);
1227                 data.dscp_map = &dscp_map;
1228                 data.size = sizeof(struct dcb_dscp_map);
1229                 ecore_memcpy_to(p_hwfn, p_ptt, data.addr, data.dscp_map,
1230                                 data.size);
1231         }
1232
1233         rc = ecore_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_SET_DCBX,
1234                            1 << DRV_MB_PARAM_LLDP_SEND_SHIFT, &resp, &param);
1235         if (rc != ECORE_SUCCESS) {
1236                 DP_NOTICE(p_hwfn, false,
1237                           "Failed to send DCBX update request\n");
1238                 return rc;
1239         }
1240
1241         return rc;
1242 }
1243
1244 enum _ecore_status_t ecore_dcbx_get_config_params(struct ecore_hwfn *p_hwfn,
1245                                                   struct ecore_dcbx_set *params)
1246 {
1247         struct ecore_dcbx_get *dcbx_info;
1248         int rc;
1249
1250         if (p_hwfn->p_dcbx_info->set.config.valid) {
1251                 OSAL_MEMCPY(params, &p_hwfn->p_dcbx_info->set,
1252                             sizeof(struct ecore_dcbx_set));
1253                 return ECORE_SUCCESS;
1254         }
1255
1256         dcbx_info = OSAL_ALLOC(p_hwfn->p_dev, GFP_KERNEL,
1257                                sizeof(*dcbx_info));
1258         if (!dcbx_info) {
1259                 DP_ERR(p_hwfn, "Failed to allocate struct ecore_dcbx_info\n");
1260                 return ECORE_NOMEM;
1261         }
1262
1263         OSAL_MEMSET(dcbx_info, 0, sizeof(*dcbx_info));
1264         rc = ecore_dcbx_query_params(p_hwfn, dcbx_info,
1265                                      ECORE_DCBX_OPERATIONAL_MIB);
1266         if (rc) {
1267                 OSAL_FREE(p_hwfn->p_dev, dcbx_info);
1268                 return rc;
1269         }
1270         p_hwfn->p_dcbx_info->set.override_flags = 0;
1271
1272         p_hwfn->p_dcbx_info->set.ver_num = DCBX_CONFIG_VERSION_DISABLED;
1273         if (dcbx_info->operational.cee)
1274                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1275         if (dcbx_info->operational.ieee)
1276                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1277         if (dcbx_info->operational.local)
1278                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_STATIC;
1279
1280         p_hwfn->p_dcbx_info->set.enabled = dcbx_info->operational.enabled;
1281         OSAL_MEMCPY(&p_hwfn->p_dcbx_info->set.config.params,
1282                     &dcbx_info->operational.params,
1283                     sizeof(struct ecore_dcbx_admin_params));
1284         p_hwfn->p_dcbx_info->set.config.valid = true;
1285
1286         OSAL_MEMCPY(params, &p_hwfn->p_dcbx_info->set,
1287                     sizeof(struct ecore_dcbx_set));
1288
1289         OSAL_FREE(p_hwfn->p_dev, dcbx_info);
1290
1291         return ECORE_SUCCESS;
1292 }