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 bool ecore_dcbx_iwarp_tlv(struct ecore_hwfn *p_hwfn, u32 app_info_bitmap,
  76                                  u16 proto_id, bool ieee)
  77 {
  78         bool port;
  79
  80         if (!p_hwfn->p_dcbx_info->iwarp_port)
  81                 return false;
  82
  83         if (ieee)
  84                 port = ecore_dcbx_ieee_app_port(app_info_bitmap,
  85                                                 DCBX_APP_SF_IEEE_TCP_PORT);
  86         else
  87                 port = ecore_dcbx_app_port(app_info_bitmap);
  88
  89         return !!(port && (proto_id == p_hwfn->p_dcbx_info->iwarp_port));
  90 }
  91
  92 static void
  93 ecore_dcbx_dp_protocol(struct ecore_hwfn *p_hwfn,
  94                        struct ecore_dcbx_results *p_data)
  95 {
  96         enum dcbx_protocol_type id;
  97         int i;
  98
  99         DP_VERBOSE(p_hwfn, ECORE_MSG_DCB, "DCBX negotiated: %d\n",
 100                    p_data->dcbx_enabled);
 101
 102         for (i = 0; i < OSAL_ARRAY_SIZE(ecore_dcbx_app_update); i++) {
 103                 id = ecore_dcbx_app_update[i].id;
 104
 105                 DP_VERBOSE(p_hwfn, ECORE_MSG_DCB,
 106                            "%s info: update %d, enable %d, prio %d, tc %d,"
 107                            " num_active_tc %d dscp_enable = %d dscp_val = %d\n",
 108                            ecore_dcbx_app_update[i].name,
 109                            p_data->arr[id].update,
 110                            p_data->arr[id].enable, p_data->arr[id].priority,
 111                            p_data->arr[id].tc, p_hwfn->hw_info.num_active_tc,
 112                            p_data->arr[id].dscp_enable,
 113                            p_data->arr[id].dscp_val);
 114         }
 115 }
 116
 117 static void
 118 ecore_dcbx_set_params(struct ecore_dcbx_results *p_data,
 119                       struct ecore_hwfn *p_hwfn,
 120                       bool enable, u8 prio, u8 tc,
 121                       enum dcbx_protocol_type type,
 122                       enum ecore_pci_personality personality)
 123 {
 124         struct ecore_dcbx_dscp_params *dscp = &p_hwfn->p_dcbx_info->get.dscp;
 125
 126         /* PF update ramrod data */
 127         p_data->arr[type].enable = enable;
 128         p_data->arr[type].priority = prio;
 129         p_data->arr[type].tc = tc;
 130         p_data->arr[type].dscp_enable = dscp->enabled;
 131         if (p_data->arr[type].dscp_enable) {
 132                 u8 i;
 133
 134                 for (i = 0; i < ECORE_DCBX_DSCP_SIZE; i++)
 135                         if (prio == dscp->dscp_pri_map[i]) {
 136                                 p_data->arr[type].dscp_val = i;
 137                                 break;
 138                         }
 139         }
 140
 141         if (enable && p_data->arr[type].dscp_enable)
 142                 p_data->arr[type].update = UPDATE_DCB_DSCP;
 143         else if (enable)
 144                 p_data->arr[type].update = UPDATE_DCB;
 145         else
 146                 p_data->arr[type].update = DONT_UPDATE_DCB_DSCP;
 147
 148         /* QM reconf data */
 149         if (p_hwfn->hw_info.personality == personality)
 150                 p_hwfn->hw_info.offload_tc = tc;
 151 }
 152
 153 /* Update app protocol data and hw_info fields with the TLV info */
 154 static void
 155 ecore_dcbx_update_app_info(struct ecore_dcbx_results *p_data,
 156                            struct ecore_hwfn *p_hwfn,
 157                            bool enable, u8 prio, u8 tc,
 158                            enum dcbx_protocol_type type)
 159 {
 160         enum ecore_pci_personality personality;
 161         enum dcbx_protocol_type id;
 162         const char *name;       /* @DPDK */
 163         int i;
 164
 165         for (i = 0; i < OSAL_ARRAY_SIZE(ecore_dcbx_app_update); i++) {
 166                 id = ecore_dcbx_app_update[i].id;
 167
 168                 if (type != id)
 169                         continue;
 170
 171                 personality = ecore_dcbx_app_update[i].personality;
 172                 name = ecore_dcbx_app_update[i].name;
 173
 174                 ecore_dcbx_set_params(p_data, p_hwfn, enable,
 175                                       prio, tc, type, personality);
 176         }
 177 }
 178
 179 static enum _ecore_status_t
 180 ecore_dcbx_get_app_priority(u8 pri_bitmap, u8 *priority)
 181 {
 182         u32 pri_mask, pri = ECORE_MAX_PFC_PRIORITIES;
 183         u32 index = ECORE_MAX_PFC_PRIORITIES - 1;
 184         enum _ecore_status_t rc = ECORE_SUCCESS;
 185
 186         /* Bitmap 1 corresponds to priority 0, return priority 0 */
 187         if (pri_bitmap == 1) {
 188                 *priority = 0;
 189                 return rc;
 190         }
 191
 192         /* Choose the highest priority */
 193         while ((pri == ECORE_MAX_PFC_PRIORITIES) && index) {
 194                 pri_mask = 1 << index;
 195                 if (pri_bitmap & pri_mask)
 196                         pri = index;
 197                 index--;
 198         }
 199
 200         if (pri < ECORE_MAX_PFC_PRIORITIES)
 201                 *priority = (u8)pri;
 202         else
 203                 rc = ECORE_INVAL;
 204
 205         return rc;
 206 }
 207
 208 static bool
 209 ecore_dcbx_get_app_protocol_type(struct ecore_hwfn *p_hwfn,
 210                                  u32 app_prio_bitmap, u16 id,
 211                                  enum dcbx_protocol_type *type, bool ieee)
 212 {
 213         if (ecore_dcbx_default_tlv(app_prio_bitmap, id, ieee)) {
 214                 *type = DCBX_PROTOCOL_ETH;
 215         } else {
 216                 *type = DCBX_MAX_PROTOCOL_TYPE;
 217                 DP_ERR(p_hwfn,
 218                        "No action required, App TLV id = 0x%x"
 219                        " app_prio_bitmap = 0x%x\n",
 220                        id, app_prio_bitmap);
 221                 return false;
 222         }
 223
 224         return true;
 225 }
 226
 227 /*  Parse app TLV's to update TC information in hw_info structure for
 228  * reconfiguring QM. Get protocol specific data for PF update ramrod command.
 229  */
 230 static enum _ecore_status_t
 231 ecore_dcbx_process_tlv(struct ecore_hwfn *p_hwfn,
 232                        struct ecore_dcbx_results *p_data,
 233                        struct dcbx_app_priority_entry *p_tbl, u32 pri_tc_tbl,
 234                        int count, u8 dcbx_version)
 235 {
 236         enum dcbx_protocol_type type;
 237         u8 tc, priority_map;
 238         bool enable, ieee;
 239         u16 protocol_id;
 240         u8 priority;
 241         enum _ecore_status_t rc = ECORE_SUCCESS;
 242         int i;
 243
 244         DP_VERBOSE(p_hwfn, ECORE_MSG_DCB,
 245                    "Num APP entries = %d pri_tc_tbl = 0x%x dcbx_version = %u\n",
 246                    count, pri_tc_tbl, dcbx_version);
 247
 248         ieee = (dcbx_version == DCBX_CONFIG_VERSION_IEEE);
 249         /* Parse APP TLV */
 250         for (i = 0; i < count; i++) {
 251                 protocol_id = ECORE_MFW_GET_FIELD(p_tbl[i].entry,
 252                                                   DCBX_APP_PROTOCOL_ID);
 253                 priority_map = ECORE_MFW_GET_FIELD(p_tbl[i].entry,
 254                                                    DCBX_APP_PRI_MAP);
 255                 DP_VERBOSE(p_hwfn, ECORE_MSG_DCB, "Id = 0x%x pri_map = %u\n",
 256                            protocol_id, priority_map);
 257                 rc = ecore_dcbx_get_app_priority(priority_map, &priority);
 258                 if (rc == ECORE_INVAL) {
 259                         DP_ERR(p_hwfn, "Invalid priority\n");
 260                         return ECORE_INVAL;
 261                 }
 262
 263                 tc = ECORE_DCBX_PRIO2TC(pri_tc_tbl, priority);
 264                 if (ecore_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
 265                                                      protocol_id, &type,
 266                                                      ieee)) {
 267                         /* ETH always have the enable bit reset, as it gets
 268                          * vlan information per packet. For other protocols,
 269                          * should be set according to the dcbx_enabled
 270                          * indication, but we only got here if there was an
 271                          * app tlv for the protocol, so dcbx must be enabled.
 272                          */
 273                         enable = !(type == DCBX_PROTOCOL_ETH);
 274
 275                         ecore_dcbx_update_app_info(p_data, p_hwfn, enable,
 276                                                    priority, tc, type);
 277                 }
 278         }
 279         /* Update ramrod protocol data and hw_info fields
 280          * with default info when corresponding APP TLV's are not detected.
 281          * The enabled field has a different logic for ethernet as only for
 282          * ethernet dcb should disabled by default, as the information arrives
 283          * from the OS (unless an explicit app tlv was present).
 284          */
 285         tc = p_data->arr[DCBX_PROTOCOL_ETH].tc;
 286         priority = p_data->arr[DCBX_PROTOCOL_ETH].priority;
 287         for (type = 0; type < DCBX_MAX_PROTOCOL_TYPE; type++) {
 288                 if (p_data->arr[type].update)
 289                         continue;
 290
 291                 enable = (type == DCBX_PROTOCOL_ETH) ? false : !!dcbx_version;
 292                 ecore_dcbx_update_app_info(p_data, p_hwfn, enable,
 293                                            priority, tc, type);
 294         }
 295
 296         return ECORE_SUCCESS;
 297 }
 298
 299 /* Parse app TLV's to update TC information in hw_info structure for
 300  * reconfiguring QM. Get protocol specific data for PF update ramrod command.
 301  */
 302 static enum _ecore_status_t
 303 ecore_dcbx_process_mib_info(struct ecore_hwfn *p_hwfn)
 304 {
 305         struct dcbx_app_priority_feature *p_app;
 306         enum _ecore_status_t rc = ECORE_SUCCESS;
 307         struct ecore_dcbx_results data = { 0 };
 308         struct dcbx_app_priority_entry *p_tbl;
 309         struct dcbx_ets_feature *p_ets;
 310         struct ecore_hw_info *p_info;
 311         u32 pri_tc_tbl, flags;
 312         u8 dcbx_version;
 313         int num_entries;
 314
 315         flags = p_hwfn->p_dcbx_info->operational.flags;
 316         dcbx_version = ECORE_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION);
 317
 318         p_app = &p_hwfn->p_dcbx_info->operational.features.app;
 319         p_tbl = p_app->app_pri_tbl;
 320
 321         p_ets = &p_hwfn->p_dcbx_info->operational.features.ets;
 322         pri_tc_tbl = p_ets->pri_tc_tbl[0];
 323
 324         p_info = &p_hwfn->hw_info;
 325         num_entries = ECORE_MFW_GET_FIELD(p_app->flags, DCBX_APP_NUM_ENTRIES);
 326
 327         rc = ecore_dcbx_process_tlv(p_hwfn, &data, p_tbl, pri_tc_tbl,
 328                                     num_entries, dcbx_version);
 329         if (rc != ECORE_SUCCESS)
 330                 return rc;
 331
 332         p_info->num_active_tc = ECORE_MFW_GET_FIELD(p_ets->flags,
 333                                                     DCBX_ETS_MAX_TCS);
 334         p_hwfn->qm_info.ooo_tc = ECORE_MFW_GET_FIELD(p_ets->flags, DCBX_OOO_TC);
 335         data.pf_id = p_hwfn->rel_pf_id;
 336         data.dcbx_enabled = !!dcbx_version;
 337
 338         ecore_dcbx_dp_protocol(p_hwfn, &data);
 339
 340         OSAL_MEMCPY(&p_hwfn->p_dcbx_info->results, &data,
 341                     sizeof(struct ecore_dcbx_results));
 342
 343         return ECORE_SUCCESS;
 344 }
 345
 346 static enum _ecore_status_t
 347 ecore_dcbx_copy_mib(struct ecore_hwfn *p_hwfn,
 348                     struct ecore_ptt *p_ptt,
 349                     struct ecore_dcbx_mib_meta_data *p_data,
 350                     enum ecore_mib_read_type type)
 351 {
 352         enum _ecore_status_t rc = ECORE_SUCCESS;
 353         u32 prefix_seq_num, suffix_seq_num;
 354         int read_count = 0;
 355
 356         /* The data is considered to be valid only if both sequence numbers are
 357          * the same.
 358          */
 359         do {
 360                 if (type == ECORE_DCBX_REMOTE_LLDP_MIB) {
 361                         ecore_memcpy_from(p_hwfn, p_ptt, p_data->lldp_remote,
 362                                           p_data->addr, p_data->size);
 363                         prefix_seq_num = p_data->lldp_remote->prefix_seq_num;
 364                         suffix_seq_num = p_data->lldp_remote->suffix_seq_num;
 365                 } else {
 366                         ecore_memcpy_from(p_hwfn, p_ptt, p_data->mib,
 367                                           p_data->addr, p_data->size);
 368                         prefix_seq_num = p_data->mib->prefix_seq_num;
 369                         suffix_seq_num = p_data->mib->suffix_seq_num;
 370                 }
 371                 read_count++;
 372
 373                 DP_VERBOSE(p_hwfn, ECORE_MSG_DCB,
 374                            "mib type = %d, try count = %d prefix seq num  ="
 375                            " %d suffix seq num = %d\n",
 376                            type, read_count, prefix_seq_num, suffix_seq_num);
 377         } while ((prefix_seq_num != suffix_seq_num) &&
 378                  (read_count < ECORE_DCBX_MAX_MIB_READ_TRY));
 379
 380         if (read_count >= ECORE_DCBX_MAX_MIB_READ_TRY) {
 381                 DP_ERR(p_hwfn,
 382                        "MIB read err, mib type = %d, try count ="
 383                        " %d prefix seq num = %d suffix seq num = %d\n",
 384                        type, read_count, prefix_seq_num, suffix_seq_num);
 385                 rc = ECORE_IO;
 386         }
 387
 388         return rc;
 389 }
 390
 391 static void
 392 ecore_dcbx_get_priority_info(struct ecore_hwfn *p_hwfn,
 393                              struct ecore_dcbx_app_prio *p_prio,
 394                              struct ecore_dcbx_results *p_results)
 395 {
 396         u8 val;
 397
 398         if (p_results->arr[DCBX_PROTOCOL_ETH].update &&
 399             p_results->arr[DCBX_PROTOCOL_ETH].enable)
 400                 p_prio->eth = p_results->arr[DCBX_PROTOCOL_ETH].priority;
 401
 402         DP_VERBOSE(p_hwfn, ECORE_MSG_DCB,
 403                    "Priorities: eth %d\n",
 404                    p_prio->eth);
 405 }
 406
 407 static void
 408 ecore_dcbx_get_app_data(struct ecore_hwfn *p_hwfn,
 409                         struct dcbx_app_priority_feature *p_app,
 410                         struct dcbx_app_priority_entry *p_tbl,
 411                         struct ecore_dcbx_params *p_params, bool ieee)
 412 {
 413         struct ecore_app_entry *entry;
 414         u8 pri_map;
 415         int i;
 416
 417         p_params->app_willing = ECORE_MFW_GET_FIELD(p_app->flags,
 418                                                     DCBX_APP_WILLING);
 419         p_params->app_valid = ECORE_MFW_GET_FIELD(p_app->flags,
 420                                                   DCBX_APP_ENABLED);
 421         p_params->app_error = ECORE_MFW_GET_FIELD(p_app->flags, DCBX_APP_ERROR);
 422         p_params->num_app_entries = ECORE_MFW_GET_FIELD(p_app->flags,
 423                                                         DCBX_APP_NUM_ENTRIES);
 424         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
 425                 entry = &p_params->app_entry[i];
 426                 if (ieee) {
 427                         u8 sf_ieee;
 428                         u32 val;
 429
 430                         sf_ieee = ECORE_MFW_GET_FIELD(p_tbl[i].entry,
 431                                                       DCBX_APP_SF_IEEE);
 432                         switch (sf_ieee) {
 433                         case DCBX_APP_SF_IEEE_RESERVED:
 434                                 /* Old MFW */
 435                                 val = ECORE_MFW_GET_FIELD(p_tbl[i].entry,
 436                                                             DCBX_APP_SF);
 437                                 entry->sf_ieee = val ?
 438                                         ECORE_DCBX_SF_IEEE_TCP_UDP_PORT :
 439                                         ECORE_DCBX_SF_IEEE_ETHTYPE;
 440                                 break;
 441                         case DCBX_APP_SF_IEEE_ETHTYPE:
 442                                 entry->sf_ieee = ECORE_DCBX_SF_IEEE_ETHTYPE;
 443                                 break;
 444                         case DCBX_APP_SF_IEEE_TCP_PORT:
 445                                 entry->sf_ieee = ECORE_DCBX_SF_IEEE_TCP_PORT;
 446                                 break;
 447                         case DCBX_APP_SF_IEEE_UDP_PORT:
 448                                 entry->sf_ieee = ECORE_DCBX_SF_IEEE_UDP_PORT;
 449                                 break;
 450                         case DCBX_APP_SF_IEEE_TCP_UDP_PORT:
 451                                 entry->sf_ieee =
 452                                                 ECORE_DCBX_SF_IEEE_TCP_UDP_PORT;
 453                                 break;
 454                         }
 455                 } else {
 456                         entry->ethtype = !(ECORE_MFW_GET_FIELD(p_tbl[i].entry,
 457                                                                DCBX_APP_SF));
 458                 }
 459
 460                 pri_map = ECORE_MFW_GET_FIELD(p_tbl[i].entry, DCBX_APP_PRI_MAP);
 461                 ecore_dcbx_get_app_priority(pri_map, &entry->prio);
 462                 entry->proto_id = ECORE_MFW_GET_FIELD(p_tbl[i].entry,
 463                                                       DCBX_APP_PROTOCOL_ID);
 464                 ecore_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
 465                                                  entry->proto_id,
 466                                                  &entry->proto_type, ieee);
 467         }
 468
 469         DP_VERBOSE(p_hwfn, ECORE_MSG_DCB,
 470                    "APP params: willing %d, valid %d error = %d\n",
 471                    p_params->app_willing, p_params->app_valid,
 472                    p_params->app_error);
 473 }
 474
 475 static void
 476 ecore_dcbx_get_pfc_data(struct ecore_hwfn *p_hwfn,
 477                         u32 pfc, struct ecore_dcbx_params *p_params)
 478 {
 479         u8 pfc_map;
 480
 481         p_params->pfc.willing = ECORE_MFW_GET_FIELD(pfc, DCBX_PFC_WILLING);
 482         p_params->pfc.max_tc = ECORE_MFW_GET_FIELD(pfc, DCBX_PFC_CAPS);
 483         p_params->pfc.enabled = ECORE_MFW_GET_FIELD(pfc, DCBX_PFC_ENABLED);
 484         pfc_map = ECORE_MFW_GET_FIELD(pfc, DCBX_PFC_PRI_EN_BITMAP);
 485         p_params->pfc.prio[0] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_0);
 486         p_params->pfc.prio[1] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_1);
 487         p_params->pfc.prio[2] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_2);
 488         p_params->pfc.prio[3] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_3);
 489         p_params->pfc.prio[4] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_4);
 490         p_params->pfc.prio[5] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_5);
 491         p_params->pfc.prio[6] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_6);
 492         p_params->pfc.prio[7] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_7);
 493
 494         DP_VERBOSE(p_hwfn, ECORE_MSG_DCB,
 495                    "PFC params: willing %d, pfc_bitmap %u max_tc = %u enabled = %d\n",
 496                    p_params->pfc.willing, pfc_map, p_params->pfc.max_tc,
 497                    p_params->pfc.enabled);
 498 }
 499
 500 static void
 501 ecore_dcbx_get_ets_data(struct ecore_hwfn *p_hwfn,
 502                         struct dcbx_ets_feature *p_ets,
 503                         struct ecore_dcbx_params *p_params)
 504 {
 505         u32 bw_map[2], tsa_map[2], pri_map;
 506         int i;
 507
 508         p_params->ets_willing = ECORE_MFW_GET_FIELD(p_ets->flags,
 509                                                     DCBX_ETS_WILLING);
 510         p_params->ets_enabled = ECORE_MFW_GET_FIELD(p_ets->flags,
 511                                                     DCBX_ETS_ENABLED);
 512         p_params->ets_cbs = ECORE_MFW_GET_FIELD(p_ets->flags, DCBX_ETS_CBS);
 513         p_params->max_ets_tc = ECORE_MFW_GET_FIELD(p_ets->flags,
 514                                                    DCBX_ETS_MAX_TCS);
 515         DP_VERBOSE(p_hwfn, ECORE_MSG_DCB,
 516                    "ETS params: willing %d, enabled = %d ets_cbs %d pri_tc_tbl_0 %x max_ets_tc %d\n",
 517                    p_params->ets_willing, p_params->ets_enabled,
 518                    p_params->ets_cbs, p_ets->pri_tc_tbl[0],
 519                    p_params->max_ets_tc);
 520
 521         /* 8 bit tsa and bw data corresponding to each of the 8 TC's are
 522          * encoded in a type u32 array of size 2.
 523          */
 524         bw_map[0] = OSAL_BE32_TO_CPU(p_ets->tc_bw_tbl[0]);
 525         bw_map[1] = OSAL_BE32_TO_CPU(p_ets->tc_bw_tbl[1]);
 526         tsa_map[0] = OSAL_BE32_TO_CPU(p_ets->tc_tsa_tbl[0]);
 527         tsa_map[1] = OSAL_BE32_TO_CPU(p_ets->tc_tsa_tbl[1]);
 528         pri_map = p_ets->pri_tc_tbl[0];
 529         for (i = 0; i < ECORE_MAX_PFC_PRIORITIES; i++) {
 530                 p_params->ets_tc_bw_tbl[i] = ((u8 *)bw_map)[i];
 531                 p_params->ets_tc_tsa_tbl[i] = ((u8 *)tsa_map)[i];
 532                 p_params->ets_pri_tc_tbl[i] = ECORE_DCBX_PRIO2TC(pri_map, i);
 533                 DP_VERBOSE(p_hwfn, ECORE_MSG_DCB,
 534                            "elem %d  bw_tbl %x tsa_tbl %x\n",
 535                            i, p_params->ets_tc_bw_tbl[i],
 536                            p_params->ets_tc_tsa_tbl[i]);
 537         }
 538 }
 539
 540 static void
 541 ecore_dcbx_get_common_params(struct ecore_hwfn *p_hwfn,
 542                              struct dcbx_app_priority_feature *p_app,
 543                              struct dcbx_app_priority_entry *p_tbl,
 544                              struct dcbx_ets_feature *p_ets,
 545                              u32 pfc, struct ecore_dcbx_params *p_params,
 546                              bool ieee)
 547 {
 548         ecore_dcbx_get_app_data(p_hwfn, p_app, p_tbl, p_params, ieee);
 549         ecore_dcbx_get_ets_data(p_hwfn, p_ets, p_params);
 550         ecore_dcbx_get_pfc_data(p_hwfn, pfc, p_params);
 551 }
 552
 553 static void
 554 ecore_dcbx_get_local_params(struct ecore_hwfn *p_hwfn,
 555                             struct ecore_ptt *p_ptt,
 556                             struct ecore_dcbx_get *params)
 557 {
 558         struct dcbx_features *p_feat;
 559
 560         p_feat = &p_hwfn->p_dcbx_info->local_admin.features;
 561         ecore_dcbx_get_common_params(p_hwfn, &p_feat->app,
 562                                      p_feat->app.app_pri_tbl, &p_feat->ets,
 563                                      p_feat->pfc, &params->local.params, false);
 564         params->local.valid = true;
 565 }
 566
 567 static void
 568 ecore_dcbx_get_remote_params(struct ecore_hwfn *p_hwfn,
 569                              struct ecore_ptt *p_ptt,
 570                              struct ecore_dcbx_get *params)
 571 {
 572         struct dcbx_features *p_feat;
 573
 574         p_feat = &p_hwfn->p_dcbx_info->remote.features;
 575         ecore_dcbx_get_common_params(p_hwfn, &p_feat->app,
 576                                      p_feat->app.app_pri_tbl, &p_feat->ets,
 577                                      p_feat->pfc, &params->remote.params,
 578                                      false);
 579         params->remote.valid = true;
 580 }
 581
 582 static enum _ecore_status_t
 583 ecore_dcbx_get_operational_params(struct ecore_hwfn *p_hwfn,
 584                                   struct ecore_ptt *p_ptt,
 585                                   struct ecore_dcbx_get *params)
 586 {
 587         struct ecore_dcbx_operational_params *p_operational;
 588         struct ecore_dcbx_results *p_results;
 589         struct dcbx_features *p_feat;
 590         bool enabled, err;
 591         u32 flags;
 592         bool val;
 593
 594         flags = p_hwfn->p_dcbx_info->operational.flags;
 595
 596         /* If DCBx version is non zero, then negotiation
 597          * was successfuly performed
 598          */
 599         p_operational = &params->operational;
 600         enabled = !!(ECORE_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) !=
 601                      DCBX_CONFIG_VERSION_DISABLED);
 602         if (!enabled) {
 603                 p_operational->enabled = enabled;
 604                 p_operational->valid = false;
 605                 DP_VERBOSE(p_hwfn, ECORE_MSG_DCB, "Dcbx is disabled\n");
 606                 return ECORE_INVAL;
 607         }
 608
 609         p_feat = &p_hwfn->p_dcbx_info->operational.features;
 610         p_results = &p_hwfn->p_dcbx_info->results;
 611
 612         val = !!(ECORE_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
 613                  DCBX_CONFIG_VERSION_IEEE);
 614         p_operational->ieee = val;
 615
 616         val = !!(ECORE_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
 617                  DCBX_CONFIG_VERSION_CEE);
 618         p_operational->cee = val;
 619
 620         val = !!(ECORE_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
 621                  DCBX_CONFIG_VERSION_STATIC);
 622         p_operational->local = val;
 623
 624         DP_VERBOSE(p_hwfn, ECORE_MSG_DCB,
 625                    "Version support: ieee %d, cee %d, static %d\n",
 626                    p_operational->ieee, p_operational->cee,
 627                    p_operational->local);
 628
 629         ecore_dcbx_get_common_params(p_hwfn, &p_feat->app,
 630                                      p_feat->app.app_pri_tbl, &p_feat->ets,
 631                                      p_feat->pfc, &params->operational.params,
 632                                      p_operational->ieee);
 633         ecore_dcbx_get_priority_info(p_hwfn, &p_operational->app_prio,
 634                                      p_results);
 635         err = ECORE_MFW_GET_FIELD(p_feat->app.flags, DCBX_APP_ERROR);
 636         p_operational->err = err;
 637         p_operational->enabled = enabled;
 638         p_operational->valid = true;
 639
 640         return ECORE_SUCCESS;
 641 }
 642
 643 static void
 644 ecore_dcbx_get_dscp_params(struct ecore_hwfn *p_hwfn,
 645                            struct ecore_ptt *p_ptt,
 646                            struct ecore_dcbx_get *params)
 647 {
 648         struct ecore_dcbx_dscp_params *p_dscp;
 649         struct dcb_dscp_map *p_dscp_map;
 650         int i, j, entry;
 651         u32 pri_map;
 652
 653         p_dscp = &params->dscp;
 654         p_dscp_map = &p_hwfn->p_dcbx_info->dscp_map;
 655         p_dscp->enabled = ECORE_MFW_GET_FIELD(p_dscp_map->flags,
 656                                               DCB_DSCP_ENABLE);
 657         /* MFW encodes 64 dscp entries into 8 element array of u32 entries,
 658          * where each entry holds the 4bit priority map for 8 dscp entries.
 659          */
 660         for (i = 0, entry = 0; i < ECORE_DCBX_DSCP_SIZE / 8; i++) {
 661                 pri_map = OSAL_BE32_TO_CPU(p_dscp_map->dscp_pri_map[i]);
 662                 DP_VERBOSE(p_hwfn, ECORE_MSG_DCB, "elem %d pri_map 0x%x\n",
 663                            entry, pri_map);
 664                 for (j = 0; j < ECORE_DCBX_DSCP_SIZE / 8; j++, entry++)
 665                         p_dscp->dscp_pri_map[entry] = (u32)(pri_map >>
 666                                                            (j * 4)) & 0xf;
 667         }
 668 }
 669
 670 static void
 671 ecore_dcbx_get_local_lldp_params(struct ecore_hwfn *p_hwfn,
 672                                  struct ecore_ptt *p_ptt,
 673                                  struct ecore_dcbx_get *params)
 674 {
 675         struct lldp_config_params_s *p_local;
 676
 677         p_local = &p_hwfn->p_dcbx_info->lldp_local[LLDP_NEAREST_BRIDGE];
 678
 679         OSAL_MEMCPY(params->lldp_local.local_chassis_id,
 680                     p_local->local_chassis_id,
 681                     OSAL_ARRAY_SIZE(p_local->local_chassis_id));
 682         OSAL_MEMCPY(params->lldp_local.local_port_id, p_local->local_port_id,
 683                     OSAL_ARRAY_SIZE(p_local->local_port_id));
 684 }
 685
 686 static void
 687 ecore_dcbx_get_remote_lldp_params(struct ecore_hwfn *p_hwfn,
 688                                   struct ecore_ptt *p_ptt,
 689                                   struct ecore_dcbx_get *params)
 690 {
 691         struct lldp_status_params_s *p_remote;
 692
 693         p_remote = &p_hwfn->p_dcbx_info->lldp_remote[LLDP_NEAREST_BRIDGE];
 694
 695         OSAL_MEMCPY(params->lldp_remote.peer_chassis_id,
 696                     p_remote->peer_chassis_id,
 697                     OSAL_ARRAY_SIZE(p_remote->peer_chassis_id));
 698         OSAL_MEMCPY(params->lldp_remote.peer_port_id, p_remote->peer_port_id,
 699                     OSAL_ARRAY_SIZE(p_remote->peer_port_id));
 700 }
 701
 702 static enum _ecore_status_t
 703 ecore_dcbx_get_params(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt,
 704                       struct ecore_dcbx_get *p_params,
 705                       enum ecore_mib_read_type type)
 706 {
 707         enum _ecore_status_t rc = ECORE_SUCCESS;
 708
 709         switch (type) {
 710         case ECORE_DCBX_REMOTE_MIB:
 711                 ecore_dcbx_get_remote_params(p_hwfn, p_ptt, p_params);
 712                 break;
 713         case ECORE_DCBX_LOCAL_MIB:
 714                 ecore_dcbx_get_local_params(p_hwfn, p_ptt, p_params);
 715                 break;
 716         case ECORE_DCBX_OPERATIONAL_MIB:
 717                 ecore_dcbx_get_operational_params(p_hwfn, p_ptt, p_params);
 718                 break;
 719         case ECORE_DCBX_REMOTE_LLDP_MIB:
 720                 ecore_dcbx_get_remote_lldp_params(p_hwfn, p_ptt, p_params);
 721                 break;
 722         case ECORE_DCBX_LOCAL_LLDP_MIB:
 723                 ecore_dcbx_get_local_lldp_params(p_hwfn, p_ptt, p_params);
 724                 break;
 725         default:
 726                 DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
 727                 return ECORE_INVAL;
 728         }
 729
 730         return rc;
 731 }
 732
 733 static enum _ecore_status_t
 734 ecore_dcbx_read_local_lldp_mib(struct ecore_hwfn *p_hwfn,
 735                                struct ecore_ptt *p_ptt)
 736 {
 737         struct ecore_dcbx_mib_meta_data data;
 738         enum _ecore_status_t rc = ECORE_SUCCESS;
 739
 740         OSAL_MEM_ZERO(&data, sizeof(data));
 741         data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
 742                                                            lldp_config_params);
 743         data.lldp_local = p_hwfn->p_dcbx_info->lldp_local;
 744         data.size = sizeof(struct lldp_config_params_s);
 745         ecore_memcpy_from(p_hwfn, p_ptt, data.lldp_local, data.addr, data.size);
 746
 747         return rc;
 748 }
 749
 750 static enum _ecore_status_t
 751 ecore_dcbx_read_remote_lldp_mib(struct ecore_hwfn *p_hwfn,
 752                                 struct ecore_ptt *p_ptt,
 753                                 enum ecore_mib_read_type type)
 754 {
 755         struct ecore_dcbx_mib_meta_data data;
 756         enum _ecore_status_t rc = ECORE_SUCCESS;
 757
 758         OSAL_MEM_ZERO(&data, sizeof(data));
 759         data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
 760                                                            lldp_status_params);
 761         data.lldp_remote = p_hwfn->p_dcbx_info->lldp_remote;
 762         data.size = sizeof(struct lldp_status_params_s);
 763         rc = ecore_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 764
 765         return rc;
 766 }
 767
 768 static enum _ecore_status_t
 769 ecore_dcbx_read_operational_mib(struct ecore_hwfn *p_hwfn,
 770                                 struct ecore_ptt *p_ptt,
 771                                 enum ecore_mib_read_type type)
 772 {
 773         struct ecore_dcbx_mib_meta_data data;
 774         enum _ecore_status_t rc = ECORE_SUCCESS;
 775
 776         OSAL_MEM_ZERO(&data, sizeof(data));
 777         data.addr = p_hwfn->mcp_info->port_addr +
 778             offsetof(struct public_port, operational_dcbx_mib);
 779         data.mib = &p_hwfn->p_dcbx_info->operational;
 780         data.size = sizeof(struct dcbx_mib);
 781         rc = ecore_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 782
 783         return rc;
 784 }
 785
 786 static enum _ecore_status_t
 787 ecore_dcbx_read_remote_mib(struct ecore_hwfn *p_hwfn,
 788                            struct ecore_ptt *p_ptt,
 789                            enum ecore_mib_read_type type)
 790 {
 791         struct ecore_dcbx_mib_meta_data data;
 792         enum _ecore_status_t rc = ECORE_SUCCESS;
 793
 794         OSAL_MEM_ZERO(&data, sizeof(data));
 795         data.addr = p_hwfn->mcp_info->port_addr +
 796             offsetof(struct public_port, remote_dcbx_mib);
 797         data.mib = &p_hwfn->p_dcbx_info->remote;
 798         data.size = sizeof(struct dcbx_mib);
 799         rc = ecore_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 800
 801         return rc;
 802 }
 803
 804 static enum _ecore_status_t
 805 ecore_dcbx_read_local_mib(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt)
 806 {
 807         struct ecore_dcbx_mib_meta_data data;
 808         enum _ecore_status_t rc = ECORE_SUCCESS;
 809
 810         OSAL_MEM_ZERO(&data, sizeof(data));
 811         data.addr = p_hwfn->mcp_info->port_addr +
 812             offsetof(struct public_port, local_admin_dcbx_mib);
 813         data.local_admin = &p_hwfn->p_dcbx_info->local_admin;
 814         data.size = sizeof(struct dcbx_local_params);
 815         ecore_memcpy_from(p_hwfn, p_ptt, data.local_admin,
 816                           data.addr, data.size);
 817
 818         return rc;
 819 }
 820
 821 static void
 822 ecore_dcbx_read_dscp_mib(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt)
 823 {
 824         struct ecore_dcbx_mib_meta_data data;
 825
 826         data.addr = p_hwfn->mcp_info->port_addr +
 827                         offsetof(struct public_port, dcb_dscp_map);
 828         data.dscp_map = &p_hwfn->p_dcbx_info->dscp_map;
 829         data.size = sizeof(struct dcb_dscp_map);
 830         ecore_memcpy_from(p_hwfn, p_ptt, data.dscp_map, data.addr, data.size);
 831 }
 832
 833 static enum _ecore_status_t ecore_dcbx_read_mib(struct ecore_hwfn *p_hwfn,
 834                                                 struct ecore_ptt *p_ptt,
 835                                                 enum ecore_mib_read_type type)
 836 {
 837         enum _ecore_status_t rc = ECORE_INVAL;
 838
 839         switch (type) {
 840         case ECORE_DCBX_OPERATIONAL_MIB:
 841                 ecore_dcbx_read_dscp_mib(p_hwfn, p_ptt);
 842                 rc = ecore_dcbx_read_operational_mib(p_hwfn, p_ptt, type);
 843                 break;
 844         case ECORE_DCBX_REMOTE_MIB:
 845                 rc = ecore_dcbx_read_remote_mib(p_hwfn, p_ptt, type);
 846                 break;
 847         case ECORE_DCBX_LOCAL_MIB:
 848                 rc = ecore_dcbx_read_local_mib(p_hwfn, p_ptt);
 849                 break;
 850         case ECORE_DCBX_REMOTE_LLDP_MIB:
 851                 rc = ecore_dcbx_read_remote_lldp_mib(p_hwfn, p_ptt, type);
 852                 break;
 853         case ECORE_DCBX_LOCAL_LLDP_MIB:
 854                 rc = ecore_dcbx_read_local_lldp_mib(p_hwfn, p_ptt);
 855                 break;
 856         default:
 857                 DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
 858         }
 859
 860         return rc;
 861 }
 862
 863 /*
 864  * Read updated MIB.
 865  * Reconfigure QM and invoke PF update ramrod command if operational MIB
 866  * change is detected.
 867  */
 868 enum _ecore_status_t
 869 ecore_dcbx_mib_update_event(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt,
 870                             enum ecore_mib_read_type type)
 871 {
 872         enum _ecore_status_t rc = ECORE_SUCCESS;
 873
 874         rc = ecore_dcbx_read_mib(p_hwfn, p_ptt, type);
 875         if (rc)
 876                 return rc;
 877
 878         if (type == ECORE_DCBX_OPERATIONAL_MIB) {
 879                 ecore_dcbx_get_dscp_params(p_hwfn, p_ptt,
 880                                            &p_hwfn->p_dcbx_info->get);
 881
 882                 rc = ecore_dcbx_process_mib_info(p_hwfn);
 883                 if (!rc) {
 884                         bool enabled;
 885
 886                         /* reconfigure tcs of QM queues according
 887                          * to negotiation results
 888                          */
 889                         ecore_qm_reconf(p_hwfn, p_ptt);
 890
 891                         /* update storm FW with negotiation results */
 892                         ecore_sp_pf_update(p_hwfn);
 893
 894                         /* set eagle enigne 1 flow control workaround
 895                          * according to negotiation results
 896                          */
 897                         enabled = p_hwfn->p_dcbx_info->results.dcbx_enabled;
 898                 }
 899         }
 900         ecore_dcbx_get_params(p_hwfn, p_ptt, &p_hwfn->p_dcbx_info->get, type);
 901
 902         /* Update the DSCP to TC mapping bit if required */
 903         if ((type == ECORE_DCBX_OPERATIONAL_MIB) &&
 904             p_hwfn->p_dcbx_info->dscp_nig_update) {
 905                 ecore_wr(p_hwfn, p_ptt, NIG_REG_DSCP_TO_TC_MAP_ENABLE, 0x1);
 906                 p_hwfn->p_dcbx_info->dscp_nig_update = false;
 907         }
 908
 909         OSAL_DCBX_AEN(p_hwfn, type);
 910
 911         return rc;
 912 }
 913
 914 enum _ecore_status_t ecore_dcbx_info_alloc(struct ecore_hwfn *p_hwfn)
 915 {
 916         p_hwfn->p_dcbx_info = OSAL_ZALLOC(p_hwfn->p_dev, GFP_KERNEL,
 917                                           sizeof(*p_hwfn->p_dcbx_info));
 918         if (!p_hwfn->p_dcbx_info) {
 919                 DP_NOTICE(p_hwfn, true,
 920                           "Failed to allocate `struct ecore_dcbx_info'");
 921                 return ECORE_NOMEM;
 922         }
 923
 924         p_hwfn->p_dcbx_info->iwarp_port =
 925                 p_hwfn->pf_params.rdma_pf_params.iwarp_port;
 926
 927         return ECORE_SUCCESS;
 928 }
 929
 930 void ecore_dcbx_info_free(struct ecore_hwfn *p_hwfn,
 931                           struct ecore_dcbx_info *p_dcbx_info)
 932 {
 933         OSAL_FREE(p_hwfn->p_dev, p_hwfn->p_dcbx_info);
 934 }
 935
 936 static void ecore_dcbx_update_protocol_data(struct protocol_dcb_data *p_data,
 937                                             struct ecore_dcbx_results *p_src,
 938                                             enum dcbx_protocol_type type)
 939 {
 940         p_data->dcb_enable_flag = p_src->arr[type].enable;
 941         p_data->dcb_priority = p_src->arr[type].priority;
 942         p_data->dcb_tc = p_src->arr[type].tc;
 943         p_data->dscp_enable_flag = p_src->arr[type].dscp_enable;
 944         p_data->dscp_val = p_src->arr[type].dscp_val;
 945 }
 946
 947 /* Set pf update ramrod command params */
 948 void ecore_dcbx_set_pf_update_params(struct ecore_dcbx_results *p_src,
 949                                      struct pf_update_ramrod_data *p_dest)
 950 {
 951         struct protocol_dcb_data *p_dcb_data;
 952         u8 update_flag;
 953
 954         p_dest->pf_id = p_src->pf_id;
 955
 956         update_flag = p_src->arr[DCBX_PROTOCOL_ETH].update;
 957         p_dest->update_eth_dcb_data_mode = update_flag;
 958         update_flag = p_src->arr[DCBX_PROTOCOL_IWARP].update;
 959         p_dest->update_iwarp_dcb_data_mode = update_flag;
 960
 961         p_dcb_data = &p_dest->eth_dcb_data;
 962         ecore_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ETH);
 963         p_dcb_data = &p_dest->iwarp_dcb_data;
 964         ecore_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_IWARP);
 965 }
 966
 967 enum _ecore_status_t ecore_dcbx_query_params(struct ecore_hwfn *p_hwfn,
 968                                              struct ecore_dcbx_get *p_get,
 969                                              enum ecore_mib_read_type type)
 970 {
 971         struct ecore_ptt *p_ptt;
 972         enum _ecore_status_t rc;
 973
 974         if (IS_VF(p_hwfn->p_dev))
 975                 return ECORE_INVAL;
 976
 977         p_ptt = ecore_ptt_acquire(p_hwfn);
 978         if (!p_ptt) {
 979                 rc = ECORE_TIMEOUT;
 980                 DP_ERR(p_hwfn, "rc = %d\n", rc);
 981                 return rc;
 982         }
 983
 984         rc = ecore_dcbx_read_mib(p_hwfn, p_ptt, type);
 985         if (rc != ECORE_SUCCESS)
 986                 goto out;
 987
 988         rc = ecore_dcbx_get_params(p_hwfn, p_ptt, p_get, type);
 989
 990 out:
 991         ecore_ptt_release(p_hwfn, p_ptt);
 992         return rc;
 993 }
 994
 995 static void
 996 ecore_dcbx_set_pfc_data(struct ecore_hwfn *p_hwfn,
 997                         u32 *pfc, struct ecore_dcbx_params *p_params)
 998 {
 999         u8 pfc_map = 0;
1000         int i;
1001
1002         if (p_params->pfc.willing)
1003                 *pfc |= DCBX_PFC_WILLING_MASK;
1004         else
1005                 *pfc &= ~DCBX_PFC_WILLING_MASK;
1006
1007         if (p_params->pfc.enabled)
1008                 *pfc |= DCBX_PFC_ENABLED_MASK;
1009         else
1010                 *pfc &= ~DCBX_PFC_ENABLED_MASK;
1011
1012         *pfc &= ~DCBX_PFC_CAPS_MASK;
1013         *pfc |= (u32)p_params->pfc.max_tc << DCBX_PFC_CAPS_SHIFT;
1014
1015         for (i = 0; i < ECORE_MAX_PFC_PRIORITIES; i++)
1016                 if (p_params->pfc.prio[i])
1017                         pfc_map |= (1 << i);
1018         *pfc &= ~DCBX_PFC_PRI_EN_BITMAP_MASK;
1019         *pfc |= (pfc_map << DCBX_PFC_PRI_EN_BITMAP_SHIFT);
1020
1021         DP_VERBOSE(p_hwfn, ECORE_MSG_DCB, "pfc = 0x%x\n", *pfc);
1022 }
1023
1024 static void
1025 ecore_dcbx_set_ets_data(struct ecore_hwfn *p_hwfn,
1026                         struct dcbx_ets_feature *p_ets,
1027                         struct ecore_dcbx_params *p_params)
1028 {
1029         u8 *bw_map, *tsa_map;
1030         u32 val;
1031         int i;
1032
1033         if (p_params->ets_willing)
1034                 p_ets->flags |= DCBX_ETS_WILLING_MASK;
1035         else
1036                 p_ets->flags &= ~DCBX_ETS_WILLING_MASK;
1037
1038         if (p_params->ets_cbs)
1039                 p_ets->flags |= DCBX_ETS_CBS_MASK;
1040         else
1041                 p_ets->flags &= ~DCBX_ETS_CBS_MASK;
1042
1043         if (p_params->ets_enabled)
1044                 p_ets->flags |= DCBX_ETS_ENABLED_MASK;
1045         else
1046                 p_ets->flags &= ~DCBX_ETS_ENABLED_MASK;
1047
1048         p_ets->flags &= ~DCBX_ETS_MAX_TCS_MASK;
1049         p_ets->flags |= (u32)p_params->max_ets_tc << DCBX_ETS_MAX_TCS_SHIFT;
1050
1051         bw_map = (u8 *)&p_ets->tc_bw_tbl[0];
1052         tsa_map = (u8 *)&p_ets->tc_tsa_tbl[0];
1053         p_ets->pri_tc_tbl[0] = 0;
1054         for (i = 0; i < ECORE_MAX_PFC_PRIORITIES; i++) {
1055                 bw_map[i] = p_params->ets_tc_bw_tbl[i];
1056                 tsa_map[i] = p_params->ets_tc_tsa_tbl[i];
1057                 /* Copy the priority value to the corresponding 4 bits in the
1058                  * traffic class table.
1059                  */
1060                 val = (((u32)p_params->ets_pri_tc_tbl[i]) << ((7 - i) * 4));
1061                 p_ets->pri_tc_tbl[0] |= val;
1062         }
1063         for (i = 0; i < 2; i++) {
1064                 p_ets->tc_bw_tbl[i] = OSAL_CPU_TO_BE32(p_ets->tc_bw_tbl[i]);
1065                 p_ets->tc_tsa_tbl[i] = OSAL_CPU_TO_BE32(p_ets->tc_tsa_tbl[i]);
1066         }
1067
1068         DP_VERBOSE(p_hwfn, ECORE_MSG_DCB,
1069                    "flags = 0x%x pri_tc = 0x%x tc_bwl[] = {0x%x, 0x%x} tc_tsa = {0x%x, 0x%x}\n",
1070                    p_ets->flags, p_ets->pri_tc_tbl[0], p_ets->tc_bw_tbl[0],
1071                    p_ets->tc_bw_tbl[1], p_ets->tc_tsa_tbl[0],
1072                    p_ets->tc_tsa_tbl[1]);
1073 }
1074
1075 static void
1076 ecore_dcbx_set_app_data(struct ecore_hwfn *p_hwfn,
1077                         struct dcbx_app_priority_feature *p_app,
1078                         struct ecore_dcbx_params *p_params, bool ieee)
1079 {
1080         u32 *entry;
1081         int i;
1082
1083         if (p_params->app_willing)
1084                 p_app->flags |= DCBX_APP_WILLING_MASK;
1085         else
1086                 p_app->flags &= ~DCBX_APP_WILLING_MASK;
1087
1088         if (p_params->app_valid)
1089                 p_app->flags |= DCBX_APP_ENABLED_MASK;
1090         else
1091                 p_app->flags &= ~DCBX_APP_ENABLED_MASK;
1092
1093         p_app->flags &= ~DCBX_APP_NUM_ENTRIES_MASK;
1094         p_app->flags |= (u32)p_params->num_app_entries <<
1095                                         DCBX_APP_NUM_ENTRIES_SHIFT;
1096
1097         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
1098                 entry = &p_app->app_pri_tbl[i].entry;
1099                 *entry = 0;
1100                 if (ieee) {
1101                         *entry &= ~(DCBX_APP_SF_IEEE_MASK | DCBX_APP_SF_MASK);
1102                         switch (p_params->app_entry[i].sf_ieee) {
1103                         case ECORE_DCBX_SF_IEEE_ETHTYPE:
1104                                 *entry  |= ((u32)DCBX_APP_SF_IEEE_ETHTYPE <<
1105                                             DCBX_APP_SF_IEEE_SHIFT);
1106                                 *entry  |= ((u32)DCBX_APP_SF_ETHTYPE <<
1107                                             DCBX_APP_SF_SHIFT);
1108                                 break;
1109                         case ECORE_DCBX_SF_IEEE_TCP_PORT:
1110                                 *entry  |= ((u32)DCBX_APP_SF_IEEE_TCP_PORT <<
1111                                             DCBX_APP_SF_IEEE_SHIFT);
1112                                 *entry  |= ((u32)DCBX_APP_SF_PORT <<
1113                                             DCBX_APP_SF_SHIFT);
1114                                 break;
1115                         case ECORE_DCBX_SF_IEEE_UDP_PORT:
1116                                 *entry  |= ((u32)DCBX_APP_SF_IEEE_UDP_PORT <<
1117                                             DCBX_APP_SF_IEEE_SHIFT);
1118                                 *entry  |= ((u32)DCBX_APP_SF_PORT <<
1119                                             DCBX_APP_SF_SHIFT);
1120                                 break;
1121                         case ECORE_DCBX_SF_IEEE_TCP_UDP_PORT:
1122                                 *entry  |= (u32)DCBX_APP_SF_IEEE_TCP_UDP_PORT <<
1123                                             DCBX_APP_SF_IEEE_SHIFT;
1124                                 *entry  |= ((u32)DCBX_APP_SF_PORT <<
1125                                             DCBX_APP_SF_SHIFT);
1126                                 break;
1127                         }
1128                 } else {
1129                         *entry &= ~DCBX_APP_SF_MASK;
1130                         if (p_params->app_entry[i].ethtype)
1131                                 *entry  |= ((u32)DCBX_APP_SF_ETHTYPE <<
1132                                             DCBX_APP_SF_SHIFT);
1133                         else
1134                                 *entry  |= ((u32)DCBX_APP_SF_PORT <<
1135                                             DCBX_APP_SF_SHIFT);
1136                 }
1137                 *entry &= ~DCBX_APP_PROTOCOL_ID_MASK;
1138                 *entry |= ((u32)p_params->app_entry[i].proto_id <<
1139                                 DCBX_APP_PROTOCOL_ID_SHIFT);
1140                 *entry &= ~DCBX_APP_PRI_MAP_MASK;
1141                 *entry |= ((u32)(p_params->app_entry[i].prio) <<
1142                                 DCBX_APP_PRI_MAP_SHIFT);
1143         }
1144
1145         DP_VERBOSE(p_hwfn, ECORE_MSG_DCB, "flags = 0x%x\n", p_app->flags);
1146 }
1147
1148 static enum _ecore_status_t
1149 ecore_dcbx_set_local_params(struct ecore_hwfn *p_hwfn,
1150                             struct dcbx_local_params *local_admin,
1151                             struct ecore_dcbx_set *params)
1152 {
1153         bool ieee = false;
1154
1155         local_admin->flags = 0;
1156         OSAL_MEMCPY(&local_admin->features,
1157                     &p_hwfn->p_dcbx_info->operational.features,
1158                     sizeof(local_admin->features));
1159
1160         if (params->enabled) {
1161                 local_admin->config = params->ver_num;
1162                 ieee = !!(params->ver_num & DCBX_CONFIG_VERSION_IEEE);
1163         } else {
1164                 local_admin->config = DCBX_CONFIG_VERSION_DISABLED;
1165         }
1166
1167         if (params->override_flags & ECORE_DCBX_OVERRIDE_PFC_CFG)
1168                 ecore_dcbx_set_pfc_data(p_hwfn, &local_admin->features.pfc,
1169                                         &params->config.params);
1170
1171         if (params->override_flags & ECORE_DCBX_OVERRIDE_ETS_CFG)
1172                 ecore_dcbx_set_ets_data(p_hwfn, &local_admin->features.ets,
1173                                         &params->config.params);
1174
1175         if (params->override_flags & ECORE_DCBX_OVERRIDE_APP_CFG)
1176                 ecore_dcbx_set_app_data(p_hwfn, &local_admin->features.app,
1177                                         &params->config.params, ieee);
1178
1179         return ECORE_SUCCESS;
1180 }
1181
1182 static enum _ecore_status_t
1183 ecore_dcbx_set_dscp_params(struct ecore_hwfn *p_hwfn,
1184                            struct dcb_dscp_map *p_dscp_map,
1185                            struct ecore_dcbx_set *p_params)
1186 {
1187         int entry, i, j;
1188         u32 val;
1189
1190         OSAL_MEMCPY(p_dscp_map, &p_hwfn->p_dcbx_info->dscp_map,
1191                     sizeof(*p_dscp_map));
1192
1193         p_dscp_map->flags &= ~DCB_DSCP_ENABLE_MASK;
1194         if (p_params->dscp.enabled)
1195                 p_dscp_map->flags |= DCB_DSCP_ENABLE_MASK;
1196
1197         for (i = 0, entry = 0; i < 8; i++) {
1198                 val = 0;
1199                 for (j = 0; j < 8; j++, entry++)
1200                         val |= (((u32)p_params->dscp.dscp_pri_map[entry]) <<
1201                                 (j * 4));
1202
1203                 p_dscp_map->dscp_pri_map[i] = OSAL_CPU_TO_BE32(val);
1204         }
1205
1206         p_hwfn->p_dcbx_info->dscp_nig_update = true;
1207
1208         DP_VERBOSE(p_hwfn, ECORE_MSG_DCB, "flags = 0x%x\n", p_dscp_map->flags);
1209
1210         return ECORE_SUCCESS;
1211 }
1212
1213 enum _ecore_status_t ecore_dcbx_config_params(struct ecore_hwfn *p_hwfn,
1214                                               struct ecore_ptt *p_ptt,
1215                                               struct ecore_dcbx_set *params,
1216                                               bool hw_commit)
1217 {
1218         struct dcbx_local_params local_admin;
1219         struct ecore_dcbx_mib_meta_data data;
1220         struct dcb_dscp_map dscp_map;
1221         u32 resp = 0, param = 0;
1222         enum _ecore_status_t rc = ECORE_SUCCESS;
1223
1224         if (!hw_commit) {
1225                 OSAL_MEMCPY(&p_hwfn->p_dcbx_info->set, params,
1226                             sizeof(p_hwfn->p_dcbx_info->set));
1227                 return ECORE_SUCCESS;
1228         }
1229
1230         /* clear set-parmas cache */
1231         OSAL_MEMSET(&p_hwfn->p_dcbx_info->set, 0,
1232                     sizeof(struct ecore_dcbx_set));
1233
1234         OSAL_MEMSET(&local_admin, 0, sizeof(local_admin));
1235         ecore_dcbx_set_local_params(p_hwfn, &local_admin, params);
1236
1237         data.addr = p_hwfn->mcp_info->port_addr +
1238                         offsetof(struct public_port, local_admin_dcbx_mib);
1239         data.local_admin = &local_admin;
1240         data.size = sizeof(struct dcbx_local_params);
1241         ecore_memcpy_to(p_hwfn, p_ptt, data.addr, data.local_admin, data.size);
1242
1243         if (params->override_flags & ECORE_DCBX_OVERRIDE_DSCP_CFG) {
1244                 OSAL_MEMSET(&dscp_map, 0, sizeof(dscp_map));
1245                 ecore_dcbx_set_dscp_params(p_hwfn, &dscp_map, params);
1246
1247                 data.addr = p_hwfn->mcp_info->port_addr +
1248                                 offsetof(struct public_port, dcb_dscp_map);
1249                 data.dscp_map = &dscp_map;
1250                 data.size = sizeof(struct dcb_dscp_map);
1251                 ecore_memcpy_to(p_hwfn, p_ptt, data.addr, data.dscp_map,
1252                                 data.size);
1253         }
1254
1255         rc = ecore_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_SET_DCBX,
1256                            1 << DRV_MB_PARAM_LLDP_SEND_SHIFT, &resp, &param);
1257         if (rc != ECORE_SUCCESS) {
1258                 DP_NOTICE(p_hwfn, false,
1259                           "Failed to send DCBX update request\n");
1260                 return rc;
1261         }
1262
1263         return rc;
1264 }
1265
1266 enum _ecore_status_t ecore_dcbx_get_config_params(struct ecore_hwfn *p_hwfn,
1267                                                   struct ecore_dcbx_set *params)
1268 {
1269         struct ecore_dcbx_get *dcbx_info;
1270         int rc;
1271
1272         if (p_hwfn->p_dcbx_info->set.config.valid) {
1273                 OSAL_MEMCPY(params, &p_hwfn->p_dcbx_info->set,
1274                             sizeof(struct ecore_dcbx_set));
1275                 return ECORE_SUCCESS;
1276         }
1277
1278         dcbx_info = OSAL_ALLOC(p_hwfn->p_dev, GFP_KERNEL,
1279                                sizeof(*dcbx_info));
1280         if (!dcbx_info) {
1281                 DP_ERR(p_hwfn, "Failed to allocate struct ecore_dcbx_info\n");
1282                 return ECORE_NOMEM;
1283         }
1284
1285         OSAL_MEMSET(dcbx_info, 0, sizeof(*dcbx_info));
1286         rc = ecore_dcbx_query_params(p_hwfn, dcbx_info,
1287                                      ECORE_DCBX_OPERATIONAL_MIB);
1288         if (rc) {
1289                 OSAL_FREE(p_hwfn->p_dev, dcbx_info);
1290                 return rc;
1291         }
1292         p_hwfn->p_dcbx_info->set.override_flags = 0;
1293
1294         p_hwfn->p_dcbx_info->set.ver_num = DCBX_CONFIG_VERSION_DISABLED;
1295         if (dcbx_info->operational.cee)
1296                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1297         if (dcbx_info->operational.ieee)
1298                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1299         if (dcbx_info->operational.local)
1300                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_STATIC;
1301
1302         p_hwfn->p_dcbx_info->set.enabled = dcbx_info->operational.enabled;
1303         OSAL_MEMCPY(&p_hwfn->p_dcbx_info->set.config.params,
1304                     &dcbx_info->operational.params,
1305                     sizeof(struct ecore_dcbx_admin_params));
1306         p_hwfn->p_dcbx_info->set.config.valid = true;
1307
1308         OSAL_MEMCPY(params, &p_hwfn->p_dcbx_info->set,
1309                     sizeof(struct ecore_dcbx_set));
1310
1311         OSAL_FREE(p_hwfn->p_dev, dcbx_info);
1312
1313         return ECORE_SUCCESS;
1314 }