drivers/net/ethernet/qlogic/qed/qed_dcbx.c

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