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