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
  17 #define ECORE_DCBX_MAX_MIB_READ_TRY     (100)
  18 #define ECORE_ETH_TYPE_DEFAULT          (0)
  19
  20 #define ECORE_DCBX_INVALID_PRIORITY     0xFF
  21
  22 /* Get Traffic Class from priority traffic class table, 4 bits represent
  23  * the traffic class corresponding to the priority.
  24  */
  25 #define ECORE_DCBX_PRIO2TC(prio_tc_tbl, prio) \
  26                 ((u32)(prio_tc_tbl >> ((7 - prio) * 4)) & 0x7)
  27
  28 static bool ecore_dcbx_app_ethtype(u32 app_info_bitmap)
  29 {
  30         return (ECORE_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) ==
  31                 DCBX_APP_SF_ETHTYPE) ? true : false;
  32 }
  33
  34 static bool ecore_dcbx_app_port(u32 app_info_bitmap)
  35 {
  36         return (ECORE_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) ==
  37                 DCBX_APP_SF_PORT) ? true : false;
  38 }
  39
  40 static bool ecore_dcbx_ieee_app_port(u32 app_info_bitmap, u8 type)
  41 {
  42         u8 mfw_val = ECORE_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE);
  43
  44         /* Old MFW */
  45         if (mfw_val == DCBX_APP_SF_IEEE_RESERVED)
  46                 return ecore_dcbx_app_port(app_info_bitmap);
  47
  48         return (mfw_val == type || mfw_val == DCBX_APP_SF_IEEE_TCP_UDP_PORT) ?
  49                 true : false;
  50 }
  51
  52 static bool ecore_dcbx_default_tlv(u32 app_info_bitmap, u16 proto_id)
  53 {
  54         return (ecore_dcbx_app_ethtype(app_info_bitmap) &&
  55                 proto_id == ECORE_ETH_TYPE_DEFAULT) ? true : false;
  56 }
  57
  58 static bool ecore_dcbx_enabled(u32 dcbx_cfg_bitmap)
  59 {
  60         return (ECORE_MFW_GET_FIELD(dcbx_cfg_bitmap, DCBX_CONFIG_VERSION) ==
  61                 DCBX_CONFIG_VERSION_DISABLED) ? false : true;
  62 }
  63
  64 static bool ecore_dcbx_cee(u32 dcbx_cfg_bitmap)
  65 {
  66         return (ECORE_MFW_GET_FIELD(dcbx_cfg_bitmap, DCBX_CONFIG_VERSION) ==
  67                 DCBX_CONFIG_VERSION_CEE) ? true : false;
  68 }
  69
  70 static bool ecore_dcbx_ieee(u32 dcbx_cfg_bitmap)
  71 {
  72         return (ECORE_MFW_GET_FIELD(dcbx_cfg_bitmap, DCBX_CONFIG_VERSION) ==
  73                 DCBX_CONFIG_VERSION_IEEE) ? true : false;
  74 }
  75
  76 static bool ecore_dcbx_local(u32 dcbx_cfg_bitmap)
  77 {
  78         return (ECORE_MFW_GET_FIELD(dcbx_cfg_bitmap, DCBX_CONFIG_VERSION) ==
  79                 DCBX_CONFIG_VERSION_STATIC) ? true : false;
  80 }
  81
  82 /* @@@TBD A0 Eagle workaround */
  83 void ecore_dcbx_eagle_workaround(struct ecore_hwfn *p_hwfn,
  84                                  struct ecore_ptt *p_ptt, bool set_to_pfc)
  85 {
  86         if (!ENABLE_EAGLE_ENG1_WORKAROUND(p_hwfn))
  87                 return;
  88
  89         ecore_wr(p_hwfn, p_ptt,
  90                  YSEM_REG_FAST_MEMORY + 0x20000 /* RAM in FASTMEM */  +
  91                  YSTORM_FLOW_CONTROL_MODE_OFFSET,
  92                  set_to_pfc ? flow_ctrl_pfc : flow_ctrl_pause);
  93         ecore_wr(p_hwfn, p_ptt, NIG_REG_FLOWCTRL_MODE,
  94                  EAGLE_ENG1_WORKAROUND_NIG_FLOWCTRL_MODE);
  95 }
  96
  97 static void
  98 ecore_dcbx_dp_protocol(struct ecore_hwfn *p_hwfn,
  99                        struct ecore_dcbx_results *p_data)
 100 {
 101         struct ecore_hw_info *p_info = &p_hwfn->hw_info;
 102         enum dcbx_protocol_type id;
 103         u8 prio, tc, size, update;
 104         bool enable;
 105         const char *name;       /* @DPDK */
 106         int i;
 107
 108         size = OSAL_ARRAY_SIZE(ecore_dcbx_app_update);
 109
 110         DP_INFO(p_hwfn, "DCBX negotiated: %d\n", p_data->dcbx_enabled);
 111
 112         for (i = 0; i < size; i++) {
 113                 id = ecore_dcbx_app_update[i].id;
 114                 name = ecore_dcbx_app_update[i].name;
 115
 116                 enable = p_data->arr[id].enable;
 117                 update = p_data->arr[id].update;
 118                 tc = p_data->arr[id].tc;
 119                 prio = p_data->arr[id].priority;
 120
 121                 DP_INFO(p_hwfn,
 122                         "%s info: update %d, enable %d, prio %d, tc %d,"
 123                         " num_active_tc %d dscp_enable = %d dscp_val = %d\n",
 124                         name, update, enable, prio, tc, p_info->num_active_tc,
 125                         p_data->arr[id].dscp_enable, p_data->arr[id].dscp_val);
 126         }
 127 }
 128
 129 static void
 130 ecore_dcbx_set_pf_tcs(struct ecore_hw_info *p_info,
 131                       u8 tc, enum ecore_pci_personality personality)
 132 {
 133         /* QM reconf data */
 134         if (p_info->personality == personality)
 135                 p_info->offload_tc = tc;
 136 }
 137
 138 void
 139 ecore_dcbx_set_params(struct ecore_dcbx_results *p_data,
 140                       struct ecore_hwfn *p_hwfn,
 141                       bool enable, bool update, u8 prio, u8 tc,
 142                       enum dcbx_protocol_type type,
 143                       enum ecore_pci_personality personality)
 144 {
 145         struct ecore_dcbx_dscp_params *dscp = &p_hwfn->p_dcbx_info->get.dscp;
 146
 147         /* PF update ramrod data */
 148         p_data->arr[type].enable = enable;
 149         p_data->arr[type].priority = prio;
 150         p_data->arr[type].tc = tc;
 151         p_data->arr[type].dscp_enable = dscp->enabled;
 152         if (p_data->arr[type].dscp_enable) {
 153                 u8 i;
 154
 155                 for (i = 0; i < ECORE_DCBX_DSCP_SIZE; i++)
 156                         if (prio == dscp->dscp_pri_map[i]) {
 157                                 p_data->arr[type].dscp_val = i;
 158                                 break;
 159                         }
 160         }
 161
 162         if (enable && p_data->arr[type].dscp_enable)
 163                 p_data->arr[type].update = UPDATE_DCB_DSCP;
 164         else if (enable)
 165                 p_data->arr[type].update = UPDATE_DCB;
 166         else
 167                 p_data->arr[type].update = DONT_UPDATE_DCB_DHCP;
 168
 169         ecore_dcbx_set_pf_tcs(&p_hwfn->hw_info, tc, personality);
 170 }
 171
 172 /* Update app protocol data and hw_info fields with the TLV info */
 173 static void
 174 ecore_dcbx_update_app_info(struct ecore_dcbx_results *p_data,
 175                            struct ecore_hwfn *p_hwfn,
 176                            bool enable, bool update, u8 prio, u8 tc,
 177                            enum dcbx_protocol_type type)
 178 {
 179         enum ecore_pci_personality personality;
 180         enum dcbx_protocol_type id;
 181         const char *name;       /* @DPDK */
 182         u8 size;
 183         int i;
 184
 185         size = OSAL_ARRAY_SIZE(ecore_dcbx_app_update);
 186
 187         for (i = 0; i < size; i++) {
 188                 id = ecore_dcbx_app_update[i].id;
 189
 190                 if (type != id)
 191                         continue;
 192
 193                 personality = ecore_dcbx_app_update[i].personality;
 194                 name = ecore_dcbx_app_update[i].name;
 195
 196                 ecore_dcbx_set_params(p_data, p_hwfn, enable, update,
 197                                       prio, tc, type, personality);
 198         }
 199 }
 200
 201 static enum _ecore_status_t
 202 ecore_dcbx_get_app_priority(u8 pri_bitmap, u8 *priority)
 203 {
 204         u32 pri_mask, pri = ECORE_MAX_PFC_PRIORITIES;
 205         u32 index = ECORE_MAX_PFC_PRIORITIES - 1;
 206         enum _ecore_status_t rc = ECORE_SUCCESS;
 207
 208         /* Bitmap 1 corresponds to priority 0, return priority 0 */
 209         if (pri_bitmap == 1) {
 210                 *priority = 0;
 211                 return rc;
 212         }
 213
 214         /* Choose the highest priority */
 215         while ((pri == ECORE_MAX_PFC_PRIORITIES) && index) {
 216                 pri_mask = 1 << index;
 217                 if (pri_bitmap & pri_mask)
 218                         pri = index;
 219                 index--;
 220         }
 221
 222         if (pri < ECORE_MAX_PFC_PRIORITIES)
 223                 *priority = (u8)pri;
 224         else
 225                 rc = ECORE_INVAL;
 226
 227         return rc;
 228 }
 229
 230 static bool
 231 ecore_dcbx_get_app_protocol_type(struct ecore_hwfn *p_hwfn,
 232                                  u32 app_prio_bitmap, u16 id,
 233                                  enum dcbx_protocol_type *type, bool ieee)
 234 {
 235         bool status = false;
 236
 237         if (ecore_dcbx_default_tlv(app_prio_bitmap, id)) {
 238                 *type = DCBX_PROTOCOL_ETH;
 239                 status = true;
 240         } else {
 241                 *type = DCBX_MAX_PROTOCOL_TYPE;
 242                 DP_ERR(p_hwfn,
 243                        "No action required, App TLV id = 0x%x"
 244                        " app_prio_bitmap = 0x%x\n",
 245                        id, app_prio_bitmap);
 246         }
 247
 248         return status;
 249 }
 250
 251 /*  Parse app TLV's to update TC information in hw_info structure for
 252  * reconfiguring QM. Get protocol specific data for PF update ramrod command.
 253  */
 254 static enum _ecore_status_t
 255 ecore_dcbx_process_tlv(struct ecore_hwfn *p_hwfn,
 256                        struct ecore_dcbx_results *p_data,
 257                        struct dcbx_app_priority_entry *p_tbl, u32 pri_tc_tbl,
 258                        int count, u8 dcbx_version)
 259 {
 260         enum _ecore_status_t rc = ECORE_SUCCESS;
 261         u8 tc, priority, priority_map;
 262         enum dcbx_protocol_type type;
 263         bool enable, ieee;
 264         u16 protocol_id;
 265         int i;
 266
 267         DP_VERBOSE(p_hwfn, ECORE_MSG_DCB, "Num APP entries = %d\n", count);
 268
 269         ieee = (dcbx_version == DCBX_CONFIG_VERSION_IEEE);
 270         /* Parse APP TLV */
 271         for (i = 0; i < count; i++) {
 272                 protocol_id = ECORE_MFW_GET_FIELD(p_tbl[i].entry,
 273                                                   DCBX_APP_PROTOCOL_ID);
 274                 priority_map = ECORE_MFW_GET_FIELD(p_tbl[i].entry,
 275                                                    DCBX_APP_PRI_MAP);
 276                 rc = ecore_dcbx_get_app_priority(priority_map, &priority);
 277                 if (rc == ECORE_INVAL) {
 278                         DP_ERR(p_hwfn, "Invalid priority\n");
 279                         return rc;
 280                 }
 281
 282                 tc = ECORE_DCBX_PRIO2TC(pri_tc_tbl, priority);
 283                 if (ecore_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
 284                                                      protocol_id, &type,
 285                                                      ieee)) {
 286                         /* ETH always have the enable bit reset, as it gets
 287                          * vlan information per packet. For other protocols,
 288                          * should be set according to the dcbx_enabled
 289                          * indication, but we only got here if there was an
 290                          * app tlv for the protocol, so dcbx must be enabled.
 291                          */
 292                         enable = (type == DCBX_PROTOCOL_ETH ? false : true);
 293
 294                         ecore_dcbx_update_app_info(p_data, p_hwfn, enable, true,
 295                                                    priority, tc, type);
 296                 }
 297         }
 298         /* Update ramrod protocol data and hw_info fields
 299          * with default info when corresponding APP TLV's are not detected.
 300          * The enabled field has a different logic for ethernet as only for
 301          * ethernet dcb should disabled by default, as the information arrives
 302          * from the OS (unless an explicit app tlv was present).
 303          */
 304         tc = p_data->arr[DCBX_PROTOCOL_ETH].tc;
 305         priority = p_data->arr[DCBX_PROTOCOL_ETH].priority;
 306         for (type = 0; type < DCBX_MAX_PROTOCOL_TYPE; type++) {
 307                 if (p_data->arr[type].update)
 308                         continue;
 309
 310                 enable = (type == DCBX_PROTOCOL_ETH) ? false : !!dcbx_version;
 311                 ecore_dcbx_update_app_info(p_data, p_hwfn, enable, true,
 312                                            priority, tc, type);
 313         }
 314
 315         return ECORE_SUCCESS;
 316 }
 317
 318 /* Parse app TLV's to update TC information in hw_info structure for
 319  * reconfiguring QM. Get protocol specific data for PF update ramrod command.
 320  */
 321 static enum _ecore_status_t
 322 ecore_dcbx_process_mib_info(struct ecore_hwfn *p_hwfn)
 323 {
 324         struct dcbx_app_priority_feature *p_app;
 325         enum _ecore_status_t rc = ECORE_SUCCESS;
 326         struct ecore_dcbx_results data = { 0 };
 327         struct dcbx_app_priority_entry *p_tbl;
 328         struct dcbx_ets_feature *p_ets;
 329         struct ecore_hw_info *p_info;
 330         u32 pri_tc_tbl, flags;
 331         u8 dcbx_version;
 332         int num_entries;
 333
 334         flags = p_hwfn->p_dcbx_info->operational.flags;
 335         dcbx_version = ECORE_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION);
 336
 337         p_app = &p_hwfn->p_dcbx_info->operational.features.app;
 338         p_tbl = p_app->app_pri_tbl;
 339
 340         p_ets = &p_hwfn->p_dcbx_info->operational.features.ets;
 341         pri_tc_tbl = p_ets->pri_tc_tbl[0];
 342
 343         p_info = &p_hwfn->hw_info;
 344         num_entries = ECORE_MFW_GET_FIELD(p_app->flags, DCBX_APP_NUM_ENTRIES);
 345
 346         rc = ecore_dcbx_process_tlv(p_hwfn, &data, p_tbl, pri_tc_tbl,
 347                                     num_entries, dcbx_version);
 348         if (rc != ECORE_SUCCESS)
 349                 return rc;
 350
 351         p_info->num_active_tc = ECORE_MFW_GET_FIELD(p_ets->flags,
 352                                                     DCBX_ETS_MAX_TCS);
 353         data.pf_id = p_hwfn->rel_pf_id;
 354         data.dcbx_enabled = !!dcbx_version;
 355
 356         ecore_dcbx_dp_protocol(p_hwfn, &data);
 357
 358         OSAL_MEMCPY(&p_hwfn->p_dcbx_info->results, &data,
 359                     sizeof(struct ecore_dcbx_results));
 360
 361         return ECORE_SUCCESS;
 362 }
 363
 364 static enum _ecore_status_t
 365 ecore_dcbx_copy_mib(struct ecore_hwfn *p_hwfn,
 366                     struct ecore_ptt *p_ptt,
 367                     struct ecore_dcbx_mib_meta_data *p_data,
 368                     enum ecore_mib_read_type type)
 369 {
 370         enum _ecore_status_t rc = ECORE_SUCCESS;
 371         u32 prefix_seq_num, suffix_seq_num;
 372         int read_count = 0;
 373
 374         do {
 375                 if (type == ECORE_DCBX_REMOTE_LLDP_MIB) {
 376                         ecore_memcpy_from(p_hwfn, p_ptt, p_data->lldp_remote,
 377                                           p_data->addr, p_data->size);
 378                         prefix_seq_num = p_data->lldp_remote->prefix_seq_num;
 379                         suffix_seq_num = p_data->lldp_remote->suffix_seq_num;
 380                 } else {
 381                         ecore_memcpy_from(p_hwfn, p_ptt, p_data->mib,
 382                                           p_data->addr, p_data->size);
 383                         prefix_seq_num = p_data->mib->prefix_seq_num;
 384                         suffix_seq_num = p_data->mib->suffix_seq_num;
 385                 }
 386                 read_count++;
 387
 388                 DP_VERBOSE(p_hwfn, ECORE_MSG_DCB,
 389                            "mib type = %d, try count = %d prefix seq num  ="
 390                            " %d suffix seq num = %d\n",
 391                            type, read_count, prefix_seq_num, suffix_seq_num);
 392         } while ((prefix_seq_num != suffix_seq_num) &&
 393                  (read_count < ECORE_DCBX_MAX_MIB_READ_TRY));
 394
 395         if (read_count >= ECORE_DCBX_MAX_MIB_READ_TRY) {
 396                 DP_ERR(p_hwfn,
 397                        "MIB read err, mib type = %d, try count ="
 398                        " %d prefix seq num = %d suffix seq num = %d\n",
 399                        type, read_count, prefix_seq_num, suffix_seq_num);
 400                 rc = ECORE_IO;
 401         }
 402
 403         return rc;
 404 }
 405
 406 static enum _ecore_status_t
 407 ecore_dcbx_get_priority_info(struct ecore_hwfn *p_hwfn,
 408                              struct ecore_dcbx_app_prio *p_prio,
 409                              struct ecore_dcbx_results *p_results)
 410 {
 411         enum _ecore_status_t rc = ECORE_SUCCESS;
 412
 413         if (p_results->arr[DCBX_PROTOCOL_ETH].update &&
 414             p_results->arr[DCBX_PROTOCOL_ETH].enable) {
 415                 p_prio->eth = p_results->arr[DCBX_PROTOCOL_ETH].priority;
 416                 DP_VERBOSE(p_hwfn, ECORE_MSG_DCB,
 417                            "Priority: eth %d\n", p_prio->eth);
 418         }
 419
 420         return rc;
 421 }
 422
 423 static void
 424 ecore_dcbx_get_app_data(struct ecore_hwfn *p_hwfn,
 425                         struct dcbx_app_priority_feature *p_app,
 426                         struct dcbx_app_priority_entry *p_tbl,
 427                         struct ecore_dcbx_params *p_params, bool ieee)
 428 {
 429         struct ecore_app_entry *entry;
 430         u8 pri_map;
 431         int i;
 432
 433         p_params->app_willing = ECORE_MFW_GET_FIELD(p_app->flags,
 434                                                     DCBX_APP_WILLING);
 435         p_params->app_valid = ECORE_MFW_GET_FIELD(p_app->flags,
 436                                                   DCBX_APP_ENABLED);
 437         p_params->app_error = ECORE_MFW_GET_FIELD(p_app->flags, DCBX_APP_ERROR);
 438         p_params->num_app_entries = ECORE_MFW_GET_FIELD(p_app->flags,
 439                                                         DCBX_APP_NUM_ENTRIES);
 440         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
 441                 entry = &p_params->app_entry[i];
 442                 if (ieee) {
 443                         u8 sf_ieee;
 444                         u32 val;
 445
 446                         sf_ieee = ECORE_MFW_GET_FIELD(p_tbl[i].entry,
 447                                                       DCBX_APP_SF_IEEE);
 448                         switch (sf_ieee) {
 449                         case DCBX_APP_SF_IEEE_RESERVED:
 450                                 /* Old MFW */
 451                                 val = ECORE_MFW_GET_FIELD(p_tbl[i].entry,
 452                                                             DCBX_APP_SF);
 453                                 entry->sf_ieee = val ?
 454                                         ECORE_DCBX_SF_IEEE_TCP_UDP_PORT :
 455                                         ECORE_DCBX_SF_IEEE_ETHTYPE;
 456                                 break;
 457                         case DCBX_APP_SF_IEEE_ETHTYPE:
 458                                 entry->sf_ieee = ECORE_DCBX_SF_IEEE_ETHTYPE;
 459                                 break;
 460                         case DCBX_APP_SF_IEEE_TCP_PORT:
 461                                 entry->sf_ieee = ECORE_DCBX_SF_IEEE_TCP_PORT;
 462                                 break;
 463                         case DCBX_APP_SF_IEEE_UDP_PORT:
 464                                 entry->sf_ieee = ECORE_DCBX_SF_IEEE_UDP_PORT;
 465                                 break;
 466                         case DCBX_APP_SF_IEEE_TCP_UDP_PORT:
 467                                 entry->sf_ieee =
 468                                                 ECORE_DCBX_SF_IEEE_TCP_UDP_PORT;
 469                                 break;
 470                         }
 471                 } else {
 472                         entry->ethtype = !(ECORE_MFW_GET_FIELD(p_tbl[i].entry,
 473                                                                DCBX_APP_SF));
 474                 }
 475
 476                 pri_map = ECORE_MFW_GET_FIELD(p_tbl[i].entry, DCBX_APP_PRI_MAP);
 477                 ecore_dcbx_get_app_priority(pri_map, &entry->prio);
 478                 entry->proto_id = ECORE_MFW_GET_FIELD(p_tbl[i].entry,
 479                                                       DCBX_APP_PROTOCOL_ID);
 480                 ecore_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
 481                                                  entry->proto_id,
 482                                                  &entry->proto_type, ieee);
 483         }
 484
 485         DP_VERBOSE(p_hwfn, ECORE_MSG_DCB,
 486                    "APP params: willing %d, valid %d error = %d\n",
 487                    p_params->app_willing, p_params->app_valid,
 488                    p_params->app_error);
 489 }
 490
 491 static void
 492 ecore_dcbx_get_pfc_data(struct ecore_hwfn *p_hwfn,
 493                         u32 pfc, struct ecore_dcbx_params *p_params)
 494 {
 495         u8 pfc_map;
 496
 497         p_params->pfc.willing = ECORE_MFW_GET_FIELD(pfc, DCBX_PFC_WILLING);
 498         p_params->pfc.max_tc = ECORE_MFW_GET_FIELD(pfc, DCBX_PFC_CAPS);
 499         p_params->pfc.enabled = ECORE_MFW_GET_FIELD(pfc, DCBX_PFC_ENABLED);
 500         pfc_map = ECORE_MFW_GET_FIELD(pfc, DCBX_PFC_PRI_EN_BITMAP);
 501         p_params->pfc.prio[0] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_0);
 502         p_params->pfc.prio[1] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_1);
 503         p_params->pfc.prio[2] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_2);
 504         p_params->pfc.prio[3] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_3);
 505         p_params->pfc.prio[4] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_4);
 506         p_params->pfc.prio[5] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_5);
 507         p_params->pfc.prio[6] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_6);
 508         p_params->pfc.prio[7] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_7);
 509
 510         DP_VERBOSE(p_hwfn, ECORE_MSG_DCB,
 511                    "PFC params: willing %d, pfc_bitmap %d\n",
 512                    p_params->pfc.willing, pfc_map);
 513 }
 514
 515 static void
 516 ecore_dcbx_get_ets_data(struct ecore_hwfn *p_hwfn,
 517                         struct dcbx_ets_feature *p_ets,
 518                         struct ecore_dcbx_params *p_params)
 519 {
 520         u32 bw_map[2], tsa_map[2], pri_map;
 521         int i;
 522
 523         p_params->ets_willing = ECORE_MFW_GET_FIELD(p_ets->flags,
 524                                                     DCBX_ETS_WILLING);
 525         p_params->ets_enabled = ECORE_MFW_GET_FIELD(p_ets->flags,
 526                                                     DCBX_ETS_ENABLED);
 527         p_params->ets_cbs = ECORE_MFW_GET_FIELD(p_ets->flags, DCBX_ETS_CBS);
 528         p_params->max_ets_tc = ECORE_MFW_GET_FIELD(p_ets->flags,
 529                                                    DCBX_ETS_MAX_TCS);
 530         DP_VERBOSE(p_hwfn, ECORE_MSG_DCB,
 531                    "ETS params: willing %d, ets_cbs %d pri_tc_tbl_0 %x"
 532                    " max_ets_tc %d\n",
 533                    p_params->ets_willing, p_params->ets_cbs,
 534                    p_ets->pri_tc_tbl[0], p_params->max_ets_tc);
 535
 536         /* 8 bit tsa and bw data corresponding to each of the 8 TC's are
 537          * encoded in a type u32 array of size 2.
 538          */
 539         bw_map[0] = OSAL_BE32_TO_CPU(p_ets->tc_bw_tbl[0]);
 540         bw_map[1] = OSAL_BE32_TO_CPU(p_ets->tc_bw_tbl[1]);
 541         tsa_map[0] = OSAL_BE32_TO_CPU(p_ets->tc_tsa_tbl[0]);
 542         tsa_map[1] = OSAL_BE32_TO_CPU(p_ets->tc_tsa_tbl[1]);
 543         pri_map = OSAL_BE32_TO_CPU(p_ets->pri_tc_tbl[0]);
 544         for (i = 0; i < ECORE_MAX_PFC_PRIORITIES; i++) {
 545                 p_params->ets_tc_bw_tbl[i] = ((u8 *)bw_map)[i];
 546                 p_params->ets_tc_tsa_tbl[i] = ((u8 *)tsa_map)[i];
 547                 p_params->ets_pri_tc_tbl[i] = ECORE_DCBX_PRIO2TC(pri_map, i);
 548                 DP_VERBOSE(p_hwfn, ECORE_MSG_DCB,
 549                            "elem %d  bw_tbl %x tsa_tbl %x\n",
 550                            i, p_params->ets_tc_bw_tbl[i],
 551                            p_params->ets_tc_tsa_tbl[i]);
 552         }
 553 }
 554
 555 static enum _ecore_status_t
 556 ecore_dcbx_get_common_params(struct ecore_hwfn *p_hwfn,
 557                              struct dcbx_app_priority_feature *p_app,
 558                              struct dcbx_app_priority_entry *p_tbl,
 559                              struct dcbx_ets_feature *p_ets,
 560                              u32 pfc, struct ecore_dcbx_params *p_params,
 561                              bool ieee)
 562 {
 563         ecore_dcbx_get_app_data(p_hwfn, p_app, p_tbl, p_params, ieee);
 564         ecore_dcbx_get_ets_data(p_hwfn, p_ets, p_params);
 565         ecore_dcbx_get_pfc_data(p_hwfn, pfc, p_params);
 566
 567         return ECORE_SUCCESS;
 568 }
 569
 570 static enum _ecore_status_t
 571 ecore_dcbx_get_local_params(struct ecore_hwfn *p_hwfn,
 572                             struct ecore_ptt *p_ptt,
 573                             struct ecore_dcbx_get *params)
 574 {
 575         struct ecore_dcbx_admin_params *p_local;
 576         struct dcbx_app_priority_feature *p_app;
 577         struct dcbx_app_priority_entry *p_tbl;
 578         struct ecore_dcbx_params *p_data;
 579         struct dcbx_ets_feature *p_ets;
 580         u32 pfc;
 581
 582         p_local = &params->local;
 583         p_data = &p_local->params;
 584         p_app = &p_hwfn->p_dcbx_info->local_admin.features.app;
 585         p_tbl = p_app->app_pri_tbl;
 586         p_ets = &p_hwfn->p_dcbx_info->local_admin.features.ets;
 587         pfc = p_hwfn->p_dcbx_info->local_admin.features.pfc;
 588
 589         ecore_dcbx_get_common_params(p_hwfn, p_app, p_tbl, p_ets, pfc, p_data,
 590                                      false);
 591         p_local->valid = true;
 592
 593         return ECORE_SUCCESS;
 594 }
 595
 596 static enum _ecore_status_t
 597 ecore_dcbx_get_remote_params(struct ecore_hwfn *p_hwfn,
 598                              struct ecore_ptt *p_ptt,
 599                              struct ecore_dcbx_get *params)
 600 {
 601         struct ecore_dcbx_remote_params *p_remote;
 602         struct dcbx_app_priority_feature *p_app;
 603         struct dcbx_app_priority_entry *p_tbl;
 604         struct ecore_dcbx_params *p_data;
 605         struct dcbx_ets_feature *p_ets;
 606         u32 pfc;
 607
 608         p_remote = &params->remote;
 609         p_data = &p_remote->params;
 610         p_app = &p_hwfn->p_dcbx_info->remote.features.app;
 611         p_tbl = p_app->app_pri_tbl;
 612         p_ets = &p_hwfn->p_dcbx_info->remote.features.ets;
 613         pfc = p_hwfn->p_dcbx_info->remote.features.pfc;
 614
 615         ecore_dcbx_get_common_params(p_hwfn, p_app, p_tbl, p_ets, pfc, p_data,
 616                                      false);
 617         p_remote->valid = true;
 618
 619         return ECORE_SUCCESS;
 620 }
 621
 622 static enum _ecore_status_t
 623 ecore_dcbx_get_operational_params(struct ecore_hwfn *p_hwfn,
 624                                   struct ecore_ptt *p_ptt,
 625                                   struct ecore_dcbx_get *params)
 626 {
 627         struct ecore_dcbx_operational_params *p_operational;
 628         enum _ecore_status_t rc = ECORE_SUCCESS;
 629         struct dcbx_app_priority_feature *p_app;
 630         struct dcbx_app_priority_entry *p_tbl;
 631         struct ecore_dcbx_results *p_results;
 632         struct ecore_dcbx_params *p_data;
 633         struct dcbx_ets_feature *p_ets;
 634         bool enabled, err;
 635         u32 pfc, flags;
 636
 637         flags = p_hwfn->p_dcbx_info->operational.flags;
 638
 639         /* If DCBx version is non zero, then negotiation
 640          * was successfuly performed
 641          */
 642         p_operational = &params->operational;
 643         enabled = ecore_dcbx_enabled(flags);
 644         if (!enabled) {
 645                 p_operational->enabled = enabled;
 646                 p_operational->valid = false;
 647                 return ECORE_INVAL;
 648         }
 649
 650         p_data = &p_operational->params;
 651         p_results = &p_hwfn->p_dcbx_info->results;
 652         p_app = &p_hwfn->p_dcbx_info->operational.features.app;
 653         p_tbl = p_app->app_pri_tbl;
 654         p_ets = &p_hwfn->p_dcbx_info->operational.features.ets;
 655         pfc = p_hwfn->p_dcbx_info->operational.features.pfc;
 656
 657         p_operational->ieee = ecore_dcbx_ieee(flags);
 658         p_operational->cee = ecore_dcbx_cee(flags);
 659         p_operational->local = ecore_dcbx_local(flags);
 660
 661         DP_VERBOSE(p_hwfn, ECORE_MSG_DCB,
 662                    "Version support: ieee %d, cee %d, static %d\n",
 663                    p_operational->ieee, p_operational->cee,
 664                    p_operational->local);
 665
 666         ecore_dcbx_get_common_params(p_hwfn, p_app, p_tbl, p_ets, pfc, p_data,
 667                                      p_operational->ieee);
 668         ecore_dcbx_get_priority_info(p_hwfn, &p_operational->app_prio,
 669                                      p_results);
 670         err = ECORE_MFW_GET_FIELD(p_app->flags, DCBX_APP_ERROR);
 671         p_operational->err = err;
 672         p_operational->enabled = enabled;
 673         p_operational->valid = true;
 674
 675         return rc;
 676 }
 677
 678 static enum _ecore_status_t
 679 ecore_dcbx_get_dscp_params(struct ecore_hwfn *p_hwfn,
 680                            struct ecore_ptt *p_ptt,
 681                            struct ecore_dcbx_get *params)
 682 {
 683         struct ecore_dcbx_dscp_params *p_dscp;
 684         struct dcb_dscp_map *p_dscp_map;
 685         int i, j, entry;
 686         u32 pri_map;
 687
 688         p_dscp = &params->dscp;
 689         p_dscp_map = &p_hwfn->p_dcbx_info->dscp_map;
 690         p_dscp->enabled = ECORE_MFW_GET_FIELD(p_dscp_map->flags,
 691                                               DCB_DSCP_ENABLE);
 692         /* MFW encodes 64 dscp entries into 8 element array of u32 entries,
 693          * where each entry holds the 4bit priority map for 8 dscp entries.
 694          */
 695         for (i = 0, entry = 0; i < ECORE_DCBX_DSCP_SIZE / 8; i++) {
 696                 pri_map = OSAL_BE32_TO_CPU(p_dscp_map->dscp_pri_map[i]);
 697                 DP_VERBOSE(p_hwfn, ECORE_MSG_DCB, "elem %d pri_map 0x%x\n",
 698                            entry, pri_map);
 699                 for (j = 0; j < ECORE_DCBX_DSCP_SIZE / 8; j++, entry++)
 700                         p_dscp->dscp_pri_map[entry] = (u32)(pri_map >>
 701                                                            (j * 4)) & 0xf;
 702         }
 703
 704         return ECORE_SUCCESS;
 705 }
 706
 707 static enum _ecore_status_t
 708 ecore_dcbx_get_local_lldp_params(struct ecore_hwfn *p_hwfn,
 709                                  struct ecore_ptt *p_ptt,
 710                                  struct ecore_dcbx_get *params)
 711 {
 712         struct ecore_dcbx_lldp_local *p_local;
 713         osal_size_t size;
 714         u32 *dest;
 715
 716         p_local = &params->lldp_local;
 717
 718         size = OSAL_ARRAY_SIZE(p_local->local_chassis_id);
 719         dest = p_hwfn->p_dcbx_info->get.lldp_local.local_chassis_id;
 720         OSAL_MEMCPY(dest, p_local->local_chassis_id, size);
 721
 722         size = OSAL_ARRAY_SIZE(p_local->local_port_id);
 723         dest = p_hwfn->p_dcbx_info->get.lldp_local.local_port_id;
 724         OSAL_MEMCPY(dest, p_local->local_port_id, size);
 725
 726         return ECORE_SUCCESS;
 727 }
 728
 729 static enum _ecore_status_t
 730 ecore_dcbx_get_remote_lldp_params(struct ecore_hwfn *p_hwfn,
 731                                   struct ecore_ptt *p_ptt,
 732                                   struct ecore_dcbx_get *params)
 733 {
 734         struct ecore_dcbx_lldp_remote *p_remote;
 735         osal_size_t size;
 736         u32 *dest;
 737
 738         p_remote = &params->lldp_remote;
 739
 740         size = OSAL_ARRAY_SIZE(p_remote->peer_chassis_id);
 741         dest = p_hwfn->p_dcbx_info->get.lldp_remote.peer_chassis_id;
 742         OSAL_MEMCPY(dest, p_remote->peer_chassis_id, size);
 743
 744         size = OSAL_ARRAY_SIZE(p_remote->peer_port_id);
 745         dest = p_hwfn->p_dcbx_info->get.lldp_remote.peer_port_id;
 746         OSAL_MEMCPY(dest, p_remote->peer_port_id, size);
 747
 748         return ECORE_SUCCESS;
 749 }
 750
 751 static enum _ecore_status_t
 752 ecore_dcbx_get_params(struct ecore_hwfn *p_hwfn,
 753                       struct ecore_ptt *p_ptt, enum ecore_mib_read_type type)
 754 {
 755         enum _ecore_status_t rc = ECORE_SUCCESS;
 756         struct ecore_dcbx_get *p_params;
 757
 758         p_params = &p_hwfn->p_dcbx_info->get;
 759
 760         switch (type) {
 761         case ECORE_DCBX_REMOTE_MIB:
 762                 ecore_dcbx_get_remote_params(p_hwfn, p_ptt, p_params);
 763                 break;
 764         case ECORE_DCBX_LOCAL_MIB:
 765                 ecore_dcbx_get_local_params(p_hwfn, p_ptt, p_params);
 766                 break;
 767         case ECORE_DCBX_OPERATIONAL_MIB:
 768                 ecore_dcbx_get_operational_params(p_hwfn, p_ptt, p_params);
 769                 break;
 770         case ECORE_DCBX_REMOTE_LLDP_MIB:
 771                 rc = ecore_dcbx_get_remote_lldp_params(p_hwfn, p_ptt, p_params);
 772                 break;
 773         case ECORE_DCBX_LOCAL_LLDP_MIB:
 774                 rc = ecore_dcbx_get_local_lldp_params(p_hwfn, p_ptt, p_params);
 775                 break;
 776         default:
 777                 DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
 778                 return ECORE_INVAL;
 779         }
 780
 781         return rc;
 782 }
 783
 784 static enum _ecore_status_t
 785 ecore_dcbx_read_local_lldp_mib(struct ecore_hwfn *p_hwfn,
 786                                struct ecore_ptt *p_ptt)
 787 {
 788         enum _ecore_status_t rc = ECORE_SUCCESS;
 789         struct ecore_dcbx_mib_meta_data data;
 790
 791         data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
 792                                                            lldp_config_params);
 793         data.lldp_local = p_hwfn->p_dcbx_info->lldp_local;
 794         data.size = sizeof(struct lldp_config_params_s);
 795         ecore_memcpy_from(p_hwfn, p_ptt, data.lldp_local, data.addr, data.size);
 796
 797         return rc;
 798 }
 799
 800 static enum _ecore_status_t
 801 ecore_dcbx_read_remote_lldp_mib(struct ecore_hwfn *p_hwfn,
 802                                 struct ecore_ptt *p_ptt,
 803                                 enum ecore_mib_read_type type)
 804 {
 805         enum _ecore_status_t rc = ECORE_SUCCESS;
 806         struct ecore_dcbx_mib_meta_data data;
 807
 808         OSAL_MEM_ZERO(&data, sizeof(data));
 809         data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
 810                                                            lldp_status_params);
 811         data.lldp_remote = p_hwfn->p_dcbx_info->lldp_remote;
 812         data.size = sizeof(struct lldp_status_params_s);
 813         rc = ecore_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 814
 815         return rc;
 816 }
 817
 818 static enum _ecore_status_t
 819 ecore_dcbx_read_operational_mib(struct ecore_hwfn *p_hwfn,
 820                                 struct ecore_ptt *p_ptt,
 821                                 enum ecore_mib_read_type type)
 822 {
 823         struct ecore_dcbx_mib_meta_data data;
 824         enum _ecore_status_t rc = ECORE_SUCCESS;
 825
 826         OSAL_MEM_ZERO(&data, sizeof(data));
 827         data.addr = p_hwfn->mcp_info->port_addr +
 828             offsetof(struct public_port, operational_dcbx_mib);
 829         data.mib = &p_hwfn->p_dcbx_info->operational;
 830         data.size = sizeof(struct dcbx_mib);
 831         rc = ecore_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 832
 833         return rc;
 834 }
 835
 836 static enum _ecore_status_t
 837 ecore_dcbx_read_remote_mib(struct ecore_hwfn *p_hwfn,
 838                            struct ecore_ptt *p_ptt,
 839                            enum ecore_mib_read_type type)
 840 {
 841         struct ecore_dcbx_mib_meta_data data;
 842         enum _ecore_status_t rc = ECORE_SUCCESS;
 843
 844         OSAL_MEM_ZERO(&data, sizeof(data));
 845         data.addr = p_hwfn->mcp_info->port_addr +
 846             offsetof(struct public_port, remote_dcbx_mib);
 847         data.mib = &p_hwfn->p_dcbx_info->remote;
 848         data.size = sizeof(struct dcbx_mib);
 849         rc = ecore_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 850
 851         return rc;
 852 }
 853
 854 static enum _ecore_status_t
 855 ecore_dcbx_read_local_mib(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt)
 856 {
 857         struct ecore_dcbx_mib_meta_data data;
 858         enum _ecore_status_t rc = ECORE_SUCCESS;
 859
 860         data.addr = p_hwfn->mcp_info->port_addr +
 861             offsetof(struct public_port, local_admin_dcbx_mib);
 862         data.local_admin = &p_hwfn->p_dcbx_info->local_admin;
 863         data.size = sizeof(struct dcbx_local_params);
 864         ecore_memcpy_from(p_hwfn, p_ptt, data.local_admin,
 865                           data.addr, data.size);
 866
 867         return rc;
 868 }
 869
 870 static void
 871 ecore_dcbx_read_dscp_mib(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt)
 872 {
 873         struct ecore_dcbx_mib_meta_data data;
 874
 875         data.addr = p_hwfn->mcp_info->port_addr +
 876                         offsetof(struct public_port, dcb_dscp_map);
 877         data.dscp_map = &p_hwfn->p_dcbx_info->dscp_map;
 878         data.size = sizeof(struct dcb_dscp_map);
 879         ecore_memcpy_from(p_hwfn, p_ptt, data.dscp_map, data.addr, data.size);
 880 }
 881
 882 static enum _ecore_status_t ecore_dcbx_read_mib(struct ecore_hwfn *p_hwfn,
 883                                                 struct ecore_ptt *p_ptt,
 884                                                 enum ecore_mib_read_type type)
 885 {
 886         enum _ecore_status_t rc = ECORE_SUCCESS;
 887
 888         switch (type) {
 889         case ECORE_DCBX_OPERATIONAL_MIB:
 890                 ecore_dcbx_read_dscp_mib(p_hwfn, p_ptt);
 891                 rc = ecore_dcbx_read_operational_mib(p_hwfn, p_ptt, type);
 892                 break;
 893         case ECORE_DCBX_REMOTE_MIB:
 894                 rc = ecore_dcbx_read_remote_mib(p_hwfn, p_ptt, type);
 895                 break;
 896         case ECORE_DCBX_LOCAL_MIB:
 897                 rc = ecore_dcbx_read_local_mib(p_hwfn, p_ptt);
 898                 break;
 899         case ECORE_DCBX_REMOTE_LLDP_MIB:
 900                 rc = ecore_dcbx_read_remote_lldp_mib(p_hwfn, p_ptt, type);
 901                 break;
 902         case ECORE_DCBX_LOCAL_LLDP_MIB:
 903                 rc = ecore_dcbx_read_local_lldp_mib(p_hwfn, p_ptt);
 904                 break;
 905         default:
 906                 DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
 907                 return ECORE_INVAL;
 908         }
 909
 910         return rc;
 911 }
 912
 913 /*
 914  * Read updated MIB.
 915  * Reconfigure QM and invoke PF update ramrod command if operational MIB
 916  * change is detected.
 917  */
 918 enum _ecore_status_t
 919 ecore_dcbx_mib_update_event(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt,
 920                             enum ecore_mib_read_type type)
 921 {
 922         enum _ecore_status_t rc = ECORE_SUCCESS;
 923
 924         rc = ecore_dcbx_read_mib(p_hwfn, p_ptt, type);
 925         if (rc)
 926                 return rc;
 927
 928         if (type == ECORE_DCBX_OPERATIONAL_MIB) {
 929                 ecore_dcbx_get_dscp_params(p_hwfn, p_ptt,
 930                                            &p_hwfn->p_dcbx_info->get);
 931
 932                 rc = ecore_dcbx_process_mib_info(p_hwfn);
 933                 if (!rc) {
 934                         bool enabled;
 935
 936                         /* reconfigure tcs of QM queues according
 937                          * to negotiation results
 938                          */
 939                         ecore_qm_reconf(p_hwfn, p_ptt);
 940
 941                         /* update storm FW with negotiation results */
 942                         ecore_sp_pf_update(p_hwfn);
 943
 944                         /* set eagle enigne 1 flow control workaround
 945                          * according to negotiation results
 946                          */
 947                         enabled = p_hwfn->p_dcbx_info->results.dcbx_enabled;
 948                         ecore_dcbx_eagle_workaround(p_hwfn, p_ptt, enabled);
 949                 }
 950         }
 951         ecore_dcbx_get_params(p_hwfn, p_ptt, type);
 952
 953         /* Update the DSCP to TC mapping bit if required */
 954         if ((type == ECORE_DCBX_OPERATIONAL_MIB) &&
 955             p_hwfn->p_dcbx_info->dscp_nig_update) {
 956                 ecore_wr(p_hwfn, p_ptt, NIG_REG_DSCP_TO_TC_MAP_ENABLE, 0x1);
 957                 p_hwfn->p_dcbx_info->dscp_nig_update = false;
 958         }
 959
 960         OSAL_DCBX_AEN(p_hwfn, type);
 961
 962         return rc;
 963 }
 964
 965 enum _ecore_status_t ecore_dcbx_info_alloc(struct ecore_hwfn *p_hwfn)
 966 {
 967         enum _ecore_status_t rc = ECORE_SUCCESS;
 968
 969         p_hwfn->p_dcbx_info = OSAL_ZALLOC(p_hwfn->p_dev, GFP_KERNEL,
 970                                           sizeof(struct ecore_dcbx_info));
 971         if (!p_hwfn->p_dcbx_info) {
 972                 DP_NOTICE(p_hwfn, true,
 973                           "Failed to allocate `struct ecore_dcbx_info'");
 974                 rc = ECORE_NOMEM;
 975         }
 976
 977         return rc;
 978 }
 979
 980 void ecore_dcbx_info_free(struct ecore_hwfn *p_hwfn,
 981                           struct ecore_dcbx_info *p_dcbx_info)
 982 {
 983         OSAL_FREE(p_hwfn->p_dev, p_hwfn->p_dcbx_info);
 984 }
 985
 986 static void ecore_dcbx_update_protocol_data(struct protocol_dcb_data *p_data,
 987                                             struct ecore_dcbx_results *p_src,
 988                                             enum dcbx_protocol_type type)
 989 {
 990         p_data->dcb_enable_flag = p_src->arr[type].enable;
 991         p_data->dcb_priority = p_src->arr[type].priority;
 992         p_data->dcb_tc = p_src->arr[type].tc;
 993         p_data->dscp_enable_flag = p_src->arr[type].dscp_enable;
 994         p_data->dscp_val = p_src->arr[type].dscp_val;
 995 }
 996
 997 /* Set pf update ramrod command params */
 998 void ecore_dcbx_set_pf_update_params(struct ecore_dcbx_results *p_src,
 999                                      struct pf_update_ramrod_data *p_dest)
1000 {
1001         struct protocol_dcb_data *p_dcb_data;
1002         bool update_flag = false;
1003
1004         p_dest->pf_id = p_src->pf_id;
1005
1006         update_flag = p_src->arr[DCBX_PROTOCOL_ETH].update;
1007         p_dest->update_eth_dcb_data_flag = update_flag;
1008
1009         p_dcb_data = &p_dest->eth_dcb_data;
1010         ecore_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ETH);
1011 }
1012
1013 static
1014 enum _ecore_status_t ecore_dcbx_query(struct ecore_hwfn *p_hwfn,
1015                                       enum ecore_mib_read_type type)
1016 {
1017         struct ecore_ptt *p_ptt;
1018         enum _ecore_status_t rc;
1019
1020         p_ptt = ecore_ptt_acquire(p_hwfn);
1021         if (!p_ptt) {
1022                 rc = ECORE_TIMEOUT;
1023                 DP_ERR(p_hwfn, "rc = %d\n", rc);
1024                 return rc;
1025         }
1026
1027         rc = ecore_dcbx_read_mib(p_hwfn, p_ptt, type);
1028         if (rc != ECORE_SUCCESS)
1029                 goto out;
1030
1031         rc = ecore_dcbx_get_params(p_hwfn, p_ptt, type);
1032
1033 out:
1034         ecore_ptt_release(p_hwfn, p_ptt);
1035         return rc;
1036 }
1037
1038 enum _ecore_status_t ecore_dcbx_query_params(struct ecore_hwfn *p_hwfn,
1039                                              struct ecore_dcbx_get *p_get,
1040                                              enum ecore_mib_read_type type)
1041 {
1042         enum _ecore_status_t rc;
1043
1044         rc = ecore_dcbx_query(p_hwfn, type);
1045         if (rc)
1046                 return rc;
1047
1048         if (p_get != OSAL_NULL)
1049                 OSAL_MEMCPY(p_get, &p_hwfn->p_dcbx_info->get,
1050                             sizeof(struct ecore_dcbx_get));
1051
1052         return rc;
1053 }
1054
1055 static void
1056 ecore_dcbx_set_pfc_data(struct ecore_hwfn *p_hwfn,
1057                         u32 *pfc, struct ecore_dcbx_params *p_params)
1058 {
1059         u8 pfc_map = 0;
1060         int i;
1061
1062         if (p_params->pfc.willing)
1063                 *pfc |= DCBX_PFC_WILLING_MASK;
1064         else
1065                 *pfc &= ~DCBX_PFC_WILLING_MASK;
1066
1067         if (p_params->pfc.enabled)
1068                 *pfc |= DCBX_PFC_ENABLED_MASK;
1069         else
1070                 *pfc &= ~DCBX_PFC_ENABLED_MASK;
1071
1072         *pfc &= ~DCBX_PFC_CAPS_MASK;
1073         *pfc |= (u32)p_params->pfc.max_tc << DCBX_PFC_CAPS_SHIFT;
1074
1075         for (i = 0; i < ECORE_MAX_PFC_PRIORITIES; i++)
1076                 if (p_params->pfc.prio[i])
1077                         pfc_map |= (0x1 << i);
1078
1079         *pfc |= (pfc_map << DCBX_PFC_PRI_EN_BITMAP_SHIFT);
1080
1081         DP_VERBOSE(p_hwfn, ECORE_MSG_DCB, "pfc = 0x%x\n", *pfc);
1082 }
1083
1084 static void
1085 ecore_dcbx_set_ets_data(struct ecore_hwfn *p_hwfn,
1086                         struct dcbx_ets_feature *p_ets,
1087                         struct ecore_dcbx_params *p_params)
1088 {
1089         u8 *bw_map, *tsa_map;
1090         int i;
1091
1092         if (p_params->ets_willing)
1093                 p_ets->flags |= DCBX_ETS_WILLING_MASK;
1094         else
1095                 p_ets->flags &= ~DCBX_ETS_WILLING_MASK;
1096
1097         if (p_params->ets_cbs)
1098                 p_ets->flags |= DCBX_ETS_CBS_MASK;
1099         else
1100                 p_ets->flags &= ~DCBX_ETS_CBS_MASK;
1101
1102         if (p_params->ets_enabled)
1103                 p_ets->flags |= DCBX_ETS_ENABLED_MASK;
1104         else
1105                 p_ets->flags &= ~DCBX_ETS_ENABLED_MASK;
1106
1107         p_ets->flags &= ~DCBX_ETS_MAX_TCS_MASK;
1108         p_ets->flags |= (u32)p_params->max_ets_tc << DCBX_ETS_MAX_TCS_SHIFT;
1109
1110         bw_map = (u8 *)&p_ets->tc_bw_tbl[0];
1111         tsa_map = (u8 *)&p_ets->tc_tsa_tbl[0];
1112         p_ets->pri_tc_tbl[0] = 0;
1113         for (i = 0; i < ECORE_MAX_PFC_PRIORITIES; i++) {
1114                 bw_map[i] = p_params->ets_tc_bw_tbl[i];
1115                 tsa_map[i] = p_params->ets_tc_tsa_tbl[i];
1116                 p_ets->pri_tc_tbl[0] |= (((u32)p_params->ets_pri_tc_tbl[i]) <<
1117                                          ((7 - i) * 4));
1118         }
1119         p_ets->pri_tc_tbl[0] = OSAL_CPU_TO_BE32(p_ets->pri_tc_tbl[0]);
1120         for (i = 0; i < 2; i++) {
1121                 p_ets->tc_bw_tbl[i] = OSAL_CPU_TO_BE32(p_ets->tc_bw_tbl[i]);
1122                 p_ets->tc_tsa_tbl[i] = OSAL_CPU_TO_BE32(p_ets->tc_tsa_tbl[i]);
1123         }
1124 }
1125
1126 static void
1127 ecore_dcbx_set_app_data(struct ecore_hwfn *p_hwfn,
1128                         struct dcbx_app_priority_feature *p_app,
1129                         struct ecore_dcbx_params *p_params, bool ieee)
1130 {
1131         u32 *entry;
1132         int i;
1133
1134         if (p_params->app_willing)
1135                 p_app->flags |= DCBX_APP_WILLING_MASK;
1136         else
1137                 p_app->flags &= ~DCBX_APP_WILLING_MASK;
1138
1139         if (p_params->app_valid)
1140                 p_app->flags |= DCBX_APP_ENABLED_MASK;
1141         else
1142                 p_app->flags &= ~DCBX_APP_ENABLED_MASK;
1143
1144         p_app->flags &= ~DCBX_APP_NUM_ENTRIES_MASK;
1145         p_app->flags |= (u32)p_params->num_app_entries <<
1146                                         DCBX_APP_NUM_ENTRIES_SHIFT;
1147
1148         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
1149                 entry = &p_app->app_pri_tbl[i].entry;
1150                 if (ieee) {
1151                         *entry &= ~DCBX_APP_SF_IEEE_MASK;
1152                         switch (p_params->app_entry[i].sf_ieee) {
1153                         case ECORE_DCBX_SF_IEEE_ETHTYPE:
1154                                 *entry  |= ((u32)DCBX_APP_SF_IEEE_ETHTYPE <<
1155                                             DCBX_APP_SF_IEEE_SHIFT);
1156                                 break;
1157                         case ECORE_DCBX_SF_IEEE_TCP_PORT:
1158                                 *entry  |= ((u32)DCBX_APP_SF_IEEE_TCP_PORT <<
1159                                             DCBX_APP_SF_IEEE_SHIFT);
1160                                 break;
1161                         case ECORE_DCBX_SF_IEEE_UDP_PORT:
1162                                 *entry  |= ((u32)DCBX_APP_SF_IEEE_UDP_PORT <<
1163                                             DCBX_APP_SF_IEEE_SHIFT);
1164                                 break;
1165                         case ECORE_DCBX_SF_IEEE_TCP_UDP_PORT:
1166                                 *entry  |= (u32)DCBX_APP_SF_IEEE_TCP_UDP_PORT <<
1167                                             DCBX_APP_SF_IEEE_SHIFT;
1168                                 break;
1169                         }
1170                 } else {
1171                         *entry &= ~DCBX_APP_SF_MASK;
1172                         if (p_params->app_entry[i].ethtype)
1173                                 *entry  |= ((u32)DCBX_APP_SF_ETHTYPE <<
1174                                             DCBX_APP_SF_SHIFT);
1175                         else
1176                                 *entry  |= ((u32)DCBX_APP_SF_PORT <<
1177                                             DCBX_APP_SF_SHIFT);
1178                 }
1179                 *entry &= ~DCBX_APP_PROTOCOL_ID_MASK;
1180                 *entry |= ((u32)p_params->app_entry[i].proto_id <<
1181                                 DCBX_APP_PROTOCOL_ID_SHIFT);
1182                 *entry &= ~DCBX_APP_PRI_MAP_MASK;
1183                 *entry |= ((u32)(p_params->app_entry[i].prio) <<
1184                                 DCBX_APP_PRI_MAP_SHIFT);
1185         }
1186 }
1187
1188 static enum _ecore_status_t
1189 ecore_dcbx_set_local_params(struct ecore_hwfn *p_hwfn,
1190                             struct dcbx_local_params *local_admin,
1191                             struct ecore_dcbx_set *params)
1192 {
1193         bool ieee = false;
1194
1195         local_admin->flags = 0;
1196         OSAL_MEMCPY(&local_admin->features,
1197                     &p_hwfn->p_dcbx_info->operational.features,
1198                     sizeof(struct dcbx_features));
1199
1200         if (params->enabled) {
1201                 local_admin->config = params->ver_num;
1202                 ieee = !!(params->ver_num & DCBX_CONFIG_VERSION_IEEE);
1203         } else {
1204                 local_admin->config = DCBX_CONFIG_VERSION_DISABLED;
1205         }
1206
1207         if (params->override_flags & ECORE_DCBX_OVERRIDE_PFC_CFG)
1208                 ecore_dcbx_set_pfc_data(p_hwfn, &local_admin->features.pfc,
1209                                         &params->config.params);
1210
1211         if (params->override_flags & ECORE_DCBX_OVERRIDE_ETS_CFG)
1212                 ecore_dcbx_set_ets_data(p_hwfn, &local_admin->features.ets,
1213                                         &params->config.params);
1214
1215         if (params->override_flags & ECORE_DCBX_OVERRIDE_APP_CFG)
1216                 ecore_dcbx_set_app_data(p_hwfn, &local_admin->features.app,
1217                                         &params->config.params, ieee);
1218
1219         return ECORE_SUCCESS;
1220 }
1221
1222 static enum _ecore_status_t
1223 ecore_dcbx_set_dscp_params(struct ecore_hwfn *p_hwfn,
1224                            struct dcb_dscp_map *p_dscp_map,
1225                            struct ecore_dcbx_set *p_params)
1226 {
1227         int entry, i, j;
1228         u32 val;
1229
1230         OSAL_MEMCPY(p_dscp_map, &p_hwfn->p_dcbx_info->dscp_map,
1231                     sizeof(*p_dscp_map));
1232
1233         if (p_params->dscp.enabled)
1234                 p_dscp_map->flags |= DCB_DSCP_ENABLE_MASK;
1235         else
1236                 p_dscp_map->flags &= ~DCB_DSCP_ENABLE_MASK;
1237
1238         for (i = 0, entry = 0; i < 8; i++) {
1239                 val = 0;
1240                 for (j = 0; j < 8; j++, entry++)
1241                         val |= (((u32)p_params->dscp.dscp_pri_map[entry]) <<
1242                                 (j * 4));
1243
1244                 p_dscp_map->dscp_pri_map[i] = OSAL_CPU_TO_BE32(val);
1245         }
1246
1247         p_hwfn->p_dcbx_info->dscp_nig_update = true;
1248
1249         return ECORE_SUCCESS;
1250 }
1251
1252 enum _ecore_status_t ecore_dcbx_config_params(struct ecore_hwfn *p_hwfn,
1253                                               struct ecore_ptt *p_ptt,
1254                                               struct ecore_dcbx_set *params,
1255                                               bool hw_commit)
1256 {
1257         enum _ecore_status_t rc = ECORE_SUCCESS;
1258         struct ecore_dcbx_mib_meta_data data;
1259         struct dcbx_local_params local_admin;
1260         struct dcb_dscp_map dscp_map;
1261         u32 resp = 0, param = 0;
1262
1263         if (!hw_commit) {
1264                 OSAL_MEMCPY(&p_hwfn->p_dcbx_info->set, params,
1265                             sizeof(struct ecore_dcbx_set));
1266                 return ECORE_SUCCESS;
1267         }
1268
1269         /* clear set-parmas cache */
1270         OSAL_MEMSET(&p_hwfn->p_dcbx_info->set, 0,
1271                     sizeof(struct ecore_dcbx_set));
1272
1273         OSAL_MEMSET(&local_admin, 0, sizeof(local_admin));
1274         ecore_dcbx_set_local_params(p_hwfn, &local_admin, params);
1275
1276         data.addr = p_hwfn->mcp_info->port_addr +
1277                         offsetof(struct public_port, local_admin_dcbx_mib);
1278         data.local_admin = &local_admin;
1279         data.size = sizeof(struct dcbx_local_params);
1280         ecore_memcpy_to(p_hwfn, p_ptt, data.addr, data.local_admin, data.size);
1281
1282         if (params->override_flags & ECORE_DCBX_OVERRIDE_DSCP_CFG) {
1283                 OSAL_MEMSET(&dscp_map, 0, sizeof(dscp_map));
1284                 ecore_dcbx_set_dscp_params(p_hwfn, &dscp_map, params);
1285
1286                 data.addr = p_hwfn->mcp_info->port_addr +
1287                                 offsetof(struct public_port, dcb_dscp_map);
1288                 data.dscp_map = &dscp_map;
1289                 data.size = sizeof(struct dcb_dscp_map);
1290                 ecore_memcpy_to(p_hwfn, p_ptt, data.addr, data.dscp_map,
1291                                 data.size);
1292         }
1293
1294         rc = ecore_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_SET_DCBX,
1295                            1 << DRV_MB_PARAM_LLDP_SEND_SHIFT, &resp, &param);
1296         if (rc != ECORE_SUCCESS) {
1297                 DP_NOTICE(p_hwfn, false,
1298                           "Failed to send DCBX update request\n");
1299                 return rc;
1300         }
1301
1302         return rc;
1303 }
1304
1305 enum _ecore_status_t ecore_dcbx_get_config_params(struct ecore_hwfn *p_hwfn,
1306                                                   struct ecore_dcbx_set *params)
1307 {
1308         struct ecore_dcbx_get *dcbx_info;
1309         int rc;
1310
1311         if (p_hwfn->p_dcbx_info->set.config.valid) {
1312                 OSAL_MEMCPY(params, &p_hwfn->p_dcbx_info->set,
1313                             sizeof(struct ecore_dcbx_set));
1314                 return ECORE_SUCCESS;
1315         }
1316
1317         dcbx_info = OSAL_ALLOC(p_hwfn->p_dev, GFP_KERNEL,
1318                                sizeof(struct ecore_dcbx_get));
1319         if (!dcbx_info) {
1320                 DP_ERR(p_hwfn, "Failed to allocate struct ecore_dcbx_info\n");
1321                 return ECORE_NOMEM;
1322         }
1323
1324         rc = ecore_dcbx_query_params(p_hwfn, dcbx_info,
1325                                      ECORE_DCBX_OPERATIONAL_MIB);
1326         if (rc) {
1327                 OSAL_FREE(p_hwfn->p_dev, dcbx_info);
1328                 return rc;
1329         }
1330         p_hwfn->p_dcbx_info->set.override_flags = 0;
1331
1332         p_hwfn->p_dcbx_info->set.ver_num = DCBX_CONFIG_VERSION_DISABLED;
1333         if (dcbx_info->operational.cee)
1334                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1335         if (dcbx_info->operational.ieee)
1336                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1337         if (dcbx_info->operational.local)
1338                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_STATIC;
1339
1340         p_hwfn->p_dcbx_info->set.enabled = dcbx_info->operational.enabled;
1341         OSAL_MEMCPY(&p_hwfn->p_dcbx_info->set.config.params,
1342                     &dcbx_info->operational.params,
1343                     sizeof(struct ecore_dcbx_admin_params));
1344         p_hwfn->p_dcbx_info->set.config.valid = true;
1345
1346         OSAL_MEMCPY(params, &p_hwfn->p_dcbx_info->set,
1347                     sizeof(struct ecore_dcbx_set));
1348
1349         OSAL_FREE(p_hwfn->p_dev, dcbx_info);
1350
1351         return ECORE_SUCCESS;
1352 }