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                 DP_NOTICE(p_hwfn,
 879                           "Failed to allocate 'struct qed_dcbx_info'\n");
 880                 rc = -ENOMEM;
 881         }
 882
 883         return rc;
 884 }
 885
 886 void qed_dcbx_info_free(struct qed_hwfn *p_hwfn,
 887                         struct qed_dcbx_info *p_dcbx_info)
 888 {
 889         kfree(p_hwfn->p_dcbx_info);
 890 }
 891
 892 static void qed_dcbx_update_protocol_data(struct protocol_dcb_data *p_data,
 893                                           struct qed_dcbx_results *p_src,
 894                                           enum dcbx_protocol_type type)
 895 {
 896         p_data->dcb_enable_flag = p_src->arr[type].enable;
 897         p_data->dcb_priority = p_src->arr[type].priority;
 898         p_data->dcb_tc = p_src->arr[type].tc;
 899 }
 900
 901 /* Set pf update ramrod command params */
 902 void qed_dcbx_set_pf_update_params(struct qed_dcbx_results *p_src,
 903                                    struct pf_update_ramrod_data *p_dest)
 904 {
 905         struct protocol_dcb_data *p_dcb_data;
 906         bool update_flag = false;
 907
 908         p_dest->pf_id = p_src->pf_id;
 909
 910         update_flag = p_src->arr[DCBX_PROTOCOL_FCOE].update;
 911         p_dest->update_fcoe_dcb_data_flag = update_flag;
 912
 913         update_flag = p_src->arr[DCBX_PROTOCOL_ROCE].update;
 914         p_dest->update_roce_dcb_data_flag = update_flag;
 915         update_flag = p_src->arr[DCBX_PROTOCOL_ROCE_V2].update;
 916         p_dest->update_roce_dcb_data_flag = update_flag;
 917
 918         update_flag = p_src->arr[DCBX_PROTOCOL_ISCSI].update;
 919         p_dest->update_iscsi_dcb_data_flag = update_flag;
 920         update_flag = p_src->arr[DCBX_PROTOCOL_ETH].update;
 921         p_dest->update_eth_dcb_data_flag = update_flag;
 922
 923         p_dcb_data = &p_dest->fcoe_dcb_data;
 924         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_FCOE);
 925         p_dcb_data = &p_dest->roce_dcb_data;
 926
 927         if (p_src->arr[DCBX_PROTOCOL_ROCE].update)
 928                 qed_dcbx_update_protocol_data(p_dcb_data, p_src,
 929                                               DCBX_PROTOCOL_ROCE);
 930         if (p_src->arr[DCBX_PROTOCOL_ROCE_V2].update)
 931                 qed_dcbx_update_protocol_data(p_dcb_data, p_src,
 932                                               DCBX_PROTOCOL_ROCE_V2);
 933
 934         p_dcb_data = &p_dest->iscsi_dcb_data;
 935         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ISCSI);
 936         p_dcb_data = &p_dest->eth_dcb_data;
 937         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ETH);
 938 }
 939
 940 #ifdef CONFIG_DCB
 941 static int qed_dcbx_query_params(struct qed_hwfn *p_hwfn,
 942                                  struct qed_dcbx_get *p_get,
 943                                  enum qed_mib_read_type type)
 944 {
 945         struct qed_ptt *p_ptt;
 946         int rc;
 947
 948         p_ptt = qed_ptt_acquire(p_hwfn);
 949         if (!p_ptt)
 950                 return -EBUSY;
 951
 952         rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type);
 953         if (rc)
 954                 goto out;
 955
 956         rc = qed_dcbx_get_params(p_hwfn, p_ptt, p_get, type);
 957
 958 out:
 959         qed_ptt_release(p_hwfn, p_ptt);
 960         return rc;
 961 }
 962
 963 static void
 964 qed_dcbx_set_pfc_data(struct qed_hwfn *p_hwfn,
 965                       u32 *pfc, struct qed_dcbx_params *p_params)
 966 {
 967         u8 pfc_map = 0;
 968         int i;
 969
 970         if (p_params->pfc.willing)
 971                 *pfc |= DCBX_PFC_WILLING_MASK;
 972         else
 973                 *pfc &= ~DCBX_PFC_WILLING_MASK;
 974
 975         if (p_params->pfc.enabled)
 976                 *pfc |= DCBX_PFC_ENABLED_MASK;
 977         else
 978                 *pfc &= ~DCBX_PFC_ENABLED_MASK;
 979
 980         *pfc &= ~DCBX_PFC_CAPS_MASK;
 981         *pfc |= (u32)p_params->pfc.max_tc << DCBX_PFC_CAPS_SHIFT;
 982
 983         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
 984                 if (p_params->pfc.prio[i])
 985                         pfc_map |= BIT(i);
 986
 987         *pfc |= (pfc_map << DCBX_PFC_PRI_EN_BITMAP_SHIFT);
 988
 989         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "pfc = 0x%x\n", *pfc);
 990 }
 991
 992 static void
 993 qed_dcbx_set_ets_data(struct qed_hwfn *p_hwfn,
 994                       struct dcbx_ets_feature *p_ets,
 995                       struct qed_dcbx_params *p_params)
 996 {
 997         u8 *bw_map, *tsa_map;
 998         u32 val;
 999         int i;
1000
1001         if (p_params->ets_willing)
1002                 p_ets->flags |= DCBX_ETS_WILLING_MASK;
1003         else
1004                 p_ets->flags &= ~DCBX_ETS_WILLING_MASK;
1005
1006         if (p_params->ets_cbs)
1007                 p_ets->flags |= DCBX_ETS_CBS_MASK;
1008         else
1009                 p_ets->flags &= ~DCBX_ETS_CBS_MASK;
1010
1011         if (p_params->ets_enabled)
1012                 p_ets->flags |= DCBX_ETS_ENABLED_MASK;
1013         else
1014                 p_ets->flags &= ~DCBX_ETS_ENABLED_MASK;
1015
1016         p_ets->flags &= ~DCBX_ETS_MAX_TCS_MASK;
1017         p_ets->flags |= (u32)p_params->max_ets_tc << DCBX_ETS_MAX_TCS_SHIFT;
1018
1019         bw_map = (u8 *)&p_ets->tc_bw_tbl[0];
1020         tsa_map = (u8 *)&p_ets->tc_tsa_tbl[0];
1021         p_ets->pri_tc_tbl[0] = 0;
1022         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
1023                 bw_map[i] = p_params->ets_tc_bw_tbl[i];
1024                 tsa_map[i] = p_params->ets_tc_tsa_tbl[i];
1025                 /* Copy the priority value to the corresponding 4 bits in the
1026                  * traffic class table.
1027                  */
1028                 val = (((u32)p_params->ets_pri_tc_tbl[i]) << ((7 - i) * 4));
1029                 p_ets->pri_tc_tbl[0] |= val;
1030         }
1031         for (i = 0; i < 2; i++) {
1032                 p_ets->tc_bw_tbl[i] = cpu_to_be32(p_ets->tc_bw_tbl[i]);
1033                 p_ets->tc_tsa_tbl[i] = cpu_to_be32(p_ets->tc_tsa_tbl[i]);
1034         }
1035 }
1036
1037 static void
1038 qed_dcbx_set_app_data(struct qed_hwfn *p_hwfn,
1039                       struct dcbx_app_priority_feature *p_app,
1040                       struct qed_dcbx_params *p_params, bool ieee)
1041 {
1042         u32 *entry;
1043         int i;
1044
1045         if (p_params->app_willing)
1046                 p_app->flags |= DCBX_APP_WILLING_MASK;
1047         else
1048                 p_app->flags &= ~DCBX_APP_WILLING_MASK;
1049
1050         if (p_params->app_valid)
1051                 p_app->flags |= DCBX_APP_ENABLED_MASK;
1052         else
1053                 p_app->flags &= ~DCBX_APP_ENABLED_MASK;
1054
1055         p_app->flags &= ~DCBX_APP_NUM_ENTRIES_MASK;
1056         p_app->flags |= (u32)p_params->num_app_entries <<
1057             DCBX_APP_NUM_ENTRIES_SHIFT;
1058
1059         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
1060                 entry = &p_app->app_pri_tbl[i].entry;
1061                 if (ieee) {
1062                         *entry &= ~DCBX_APP_SF_IEEE_MASK;
1063                         switch (p_params->app_entry[i].sf_ieee) {
1064                         case QED_DCBX_SF_IEEE_ETHTYPE:
1065                                 *entry |= ((u32)DCBX_APP_SF_IEEE_ETHTYPE <<
1066                                            DCBX_APP_SF_IEEE_SHIFT);
1067                                 break;
1068                         case QED_DCBX_SF_IEEE_TCP_PORT:
1069                                 *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_PORT <<
1070                                            DCBX_APP_SF_IEEE_SHIFT);
1071                                 break;
1072                         case QED_DCBX_SF_IEEE_UDP_PORT:
1073                                 *entry |= ((u32)DCBX_APP_SF_IEEE_UDP_PORT <<
1074                                            DCBX_APP_SF_IEEE_SHIFT);
1075                                 break;
1076                         case QED_DCBX_SF_IEEE_TCP_UDP_PORT:
1077                                 *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_UDP_PORT <<
1078                                            DCBX_APP_SF_IEEE_SHIFT);
1079                                 break;
1080                         }
1081                 } else {
1082                         *entry &= ~DCBX_APP_SF_MASK;
1083                         if (p_params->app_entry[i].ethtype)
1084                                 *entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
1085                                            DCBX_APP_SF_SHIFT);
1086                         else
1087                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1088                                            DCBX_APP_SF_SHIFT);
1089                 }
1090
1091                 *entry &= ~DCBX_APP_PROTOCOL_ID_MASK;
1092                 *entry |= ((u32)p_params->app_entry[i].proto_id <<
1093                            DCBX_APP_PROTOCOL_ID_SHIFT);
1094                 *entry &= ~DCBX_APP_PRI_MAP_MASK;
1095                 *entry |= ((u32)(p_params->app_entry[i].prio) <<
1096                            DCBX_APP_PRI_MAP_SHIFT);
1097         }
1098 }
1099
1100 static void
1101 qed_dcbx_set_local_params(struct qed_hwfn *p_hwfn,
1102                           struct dcbx_local_params *local_admin,
1103                           struct qed_dcbx_set *params)
1104 {
1105         bool ieee = false;
1106
1107         local_admin->flags = 0;
1108         memcpy(&local_admin->features,
1109                &p_hwfn->p_dcbx_info->operational.features,
1110                sizeof(local_admin->features));
1111
1112         if (params->enabled) {
1113                 local_admin->config = params->ver_num;
1114                 ieee = !!(params->ver_num & DCBX_CONFIG_VERSION_IEEE);
1115         } else {
1116                 local_admin->config = DCBX_CONFIG_VERSION_DISABLED;
1117         }
1118
1119         if (params->override_flags & QED_DCBX_OVERRIDE_PFC_CFG)
1120                 qed_dcbx_set_pfc_data(p_hwfn, &local_admin->features.pfc,
1121                                       &params->config.params);
1122
1123         if (params->override_flags & QED_DCBX_OVERRIDE_ETS_CFG)
1124                 qed_dcbx_set_ets_data(p_hwfn, &local_admin->features.ets,
1125                                       &params->config.params);
1126
1127         if (params->override_flags & QED_DCBX_OVERRIDE_APP_CFG)
1128                 qed_dcbx_set_app_data(p_hwfn, &local_admin->features.app,
1129                                       &params->config.params, ieee);
1130 }
1131
1132 int qed_dcbx_config_params(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
1133                            struct qed_dcbx_set *params, bool hw_commit)
1134 {
1135         struct dcbx_local_params local_admin;
1136         struct qed_dcbx_mib_meta_data data;
1137         u32 resp = 0, param = 0;
1138         int rc = 0;
1139
1140         if (!hw_commit) {
1141                 memcpy(&p_hwfn->p_dcbx_info->set, params,
1142                        sizeof(struct qed_dcbx_set));
1143                 return 0;
1144         }
1145
1146         /* clear set-parmas cache */
1147         memset(&p_hwfn->p_dcbx_info->set, 0, sizeof(p_hwfn->p_dcbx_info->set));
1148
1149         memset(&local_admin, 0, sizeof(local_admin));
1150         qed_dcbx_set_local_params(p_hwfn, &local_admin, params);
1151
1152         data.addr = p_hwfn->mcp_info->port_addr +
1153             offsetof(struct public_port, local_admin_dcbx_mib);
1154         data.local_admin = &local_admin;
1155         data.size = sizeof(struct dcbx_local_params);
1156         qed_memcpy_to(p_hwfn, p_ptt, data.addr, data.local_admin, data.size);
1157
1158         rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_SET_DCBX,
1159                          1 << DRV_MB_PARAM_LLDP_SEND_SHIFT, &resp, &param);
1160         if (rc)
1161                 DP_NOTICE(p_hwfn, "Failed to send DCBX update request\n");
1162
1163         return rc;
1164 }
1165
1166 int qed_dcbx_get_config_params(struct qed_hwfn *p_hwfn,
1167                                struct qed_dcbx_set *params)
1168 {
1169         struct qed_dcbx_get *dcbx_info;
1170         int rc;
1171
1172         if (p_hwfn->p_dcbx_info->set.config.valid) {
1173                 memcpy(params, &p_hwfn->p_dcbx_info->set,
1174                        sizeof(struct qed_dcbx_set));
1175                 return 0;
1176         }
1177
1178         dcbx_info = kmalloc(sizeof(*dcbx_info), GFP_KERNEL);
1179         if (!dcbx_info) {
1180                 DP_ERR(p_hwfn, "Failed to allocate struct qed_dcbx_info\n");
1181                 return -ENOMEM;
1182         }
1183
1184         rc = qed_dcbx_query_params(p_hwfn, dcbx_info, QED_DCBX_OPERATIONAL_MIB);
1185         if (rc) {
1186                 kfree(dcbx_info);
1187                 return rc;
1188         }
1189
1190         p_hwfn->p_dcbx_info->set.override_flags = 0;
1191         p_hwfn->p_dcbx_info->set.ver_num = DCBX_CONFIG_VERSION_DISABLED;
1192         if (dcbx_info->operational.cee)
1193                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1194         if (dcbx_info->operational.ieee)
1195                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1196
1197         p_hwfn->p_dcbx_info->set.enabled = dcbx_info->operational.enabled;
1198         memcpy(&p_hwfn->p_dcbx_info->set.config.params,
1199                &dcbx_info->operational.params,
1200                sizeof(struct qed_dcbx_admin_params));
1201         p_hwfn->p_dcbx_info->set.config.valid = true;
1202
1203         memcpy(params, &p_hwfn->p_dcbx_info->set, sizeof(struct qed_dcbx_set));
1204
1205         kfree(dcbx_info);
1206
1207         return 0;
1208 }
1209
1210 static struct qed_dcbx_get *qed_dcbnl_get_dcbx(struct qed_hwfn *hwfn,
1211                                                enum qed_mib_read_type type)
1212 {
1213         struct qed_dcbx_get *dcbx_info;
1214
1215         dcbx_info = kmalloc(sizeof(*dcbx_info), GFP_KERNEL);
1216         if (!dcbx_info) {
1217                 DP_ERR(hwfn->cdev, "Failed to allocate memory for dcbx_info\n");
1218                 return NULL;
1219         }
1220
1221         if (qed_dcbx_query_params(hwfn, dcbx_info, type)) {
1222                 kfree(dcbx_info);
1223                 return NULL;
1224         }
1225
1226         if ((type == QED_DCBX_OPERATIONAL_MIB) &&
1227             !dcbx_info->operational.enabled) {
1228                 DP_INFO(hwfn, "DCBX is not enabled/operational\n");
1229                 kfree(dcbx_info);
1230                 return NULL;
1231         }
1232
1233         return dcbx_info;
1234 }
1235
1236 static u8 qed_dcbnl_getstate(struct qed_dev *cdev)
1237 {
1238         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1239         struct qed_dcbx_get *dcbx_info;
1240         bool enabled;
1241
1242         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1243         if (!dcbx_info)
1244                 return 0;
1245
1246         enabled = dcbx_info->operational.enabled;
1247         DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", enabled);
1248         kfree(dcbx_info);
1249
1250         return enabled;
1251 }
1252
1253 static u8 qed_dcbnl_setstate(struct qed_dev *cdev, u8 state)
1254 {
1255         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1256         struct qed_dcbx_set dcbx_set;
1257         struct qed_ptt *ptt;
1258         int rc;
1259
1260         DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", state);
1261
1262         memset(&dcbx_set, 0, sizeof(dcbx_set));
1263         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1264         if (rc)
1265                 return 1;
1266
1267         dcbx_set.enabled = !!state;
1268
1269         ptt = qed_ptt_acquire(hwfn);
1270         if (!ptt)
1271                 return 1;
1272
1273         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1274
1275         qed_ptt_release(hwfn, ptt);
1276
1277         return rc ? 1 : 0;
1278 }
1279
1280 static void qed_dcbnl_getpgtccfgtx(struct qed_dev *cdev, int tc, u8 *prio_type,
1281                                    u8 *pgid, u8 *bw_pct, u8 *up_map)
1282 {
1283         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1284         struct qed_dcbx_get *dcbx_info;
1285
1286         DP_VERBOSE(hwfn, QED_MSG_DCB, "tc = %d\n", tc);
1287         *prio_type = *pgid = *bw_pct = *up_map = 0;
1288         if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
1289                 DP_INFO(hwfn, "Invalid tc %d\n", tc);
1290                 return;
1291         }
1292
1293         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1294         if (!dcbx_info)
1295                 return;
1296
1297         *pgid = dcbx_info->operational.params.ets_pri_tc_tbl[tc];
1298         kfree(dcbx_info);
1299 }
1300
1301 static void qed_dcbnl_getpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 *bw_pct)
1302 {
1303         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1304         struct qed_dcbx_get *dcbx_info;
1305
1306         *bw_pct = 0;
1307         DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d\n", pgid);
1308         if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
1309                 DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
1310                 return;
1311         }
1312
1313         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1314         if (!dcbx_info)
1315                 return;
1316
1317         *bw_pct = dcbx_info->operational.params.ets_tc_bw_tbl[pgid];
1318         DP_VERBOSE(hwfn, QED_MSG_DCB, "bw_pct = %d\n", *bw_pct);
1319         kfree(dcbx_info);
1320 }
1321
1322 static void qed_dcbnl_getpgtccfgrx(struct qed_dev *cdev, int tc, u8 *prio,
1323                                    u8 *bwg_id, u8 *bw_pct, u8 *up_map)
1324 {
1325         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1326         *prio = *bwg_id = *bw_pct = *up_map = 0;
1327 }
1328
1329 static void qed_dcbnl_getpgbwgcfgrx(struct qed_dev *cdev,
1330                                     int bwg_id, u8 *bw_pct)
1331 {
1332         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1333         *bw_pct = 0;
1334 }
1335
1336 static void qed_dcbnl_getpfccfg(struct qed_dev *cdev,
1337                                 int priority, u8 *setting)
1338 {
1339         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1340         struct qed_dcbx_get *dcbx_info;
1341
1342         DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d\n", priority);
1343         if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
1344                 DP_INFO(hwfn, "Invalid priority %d\n", priority);
1345                 return;
1346         }
1347
1348         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1349         if (!dcbx_info)
1350                 return;
1351
1352         *setting = dcbx_info->operational.params.pfc.prio[priority];
1353         DP_VERBOSE(hwfn, QED_MSG_DCB, "setting = %d\n", *setting);
1354         kfree(dcbx_info);
1355 }
1356
1357 static void qed_dcbnl_setpfccfg(struct qed_dev *cdev, int priority, u8 setting)
1358 {
1359         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1360         struct qed_dcbx_set dcbx_set;
1361         struct qed_ptt *ptt;
1362         int rc;
1363
1364         DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d setting = %d\n",
1365                    priority, setting);
1366         if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
1367                 DP_INFO(hwfn, "Invalid priority %d\n", priority);
1368                 return;
1369         }
1370
1371         memset(&dcbx_set, 0, sizeof(dcbx_set));
1372         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1373         if (rc)
1374                 return;
1375
1376         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1377         dcbx_set.config.params.pfc.prio[priority] = !!setting;
1378
1379         ptt = qed_ptt_acquire(hwfn);
1380         if (!ptt)
1381                 return;
1382
1383         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1384
1385         qed_ptt_release(hwfn, ptt);
1386 }
1387
1388 static u8 qed_dcbnl_getcap(struct qed_dev *cdev, int capid, u8 *cap)
1389 {
1390         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1391         struct qed_dcbx_get *dcbx_info;
1392         int rc = 0;
1393
1394         DP_VERBOSE(hwfn, QED_MSG_DCB, "capid = %d\n", capid);
1395         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1396         if (!dcbx_info)
1397                 return 1;
1398
1399         switch (capid) {
1400         case DCB_CAP_ATTR_PG:
1401         case DCB_CAP_ATTR_PFC:
1402         case DCB_CAP_ATTR_UP2TC:
1403         case DCB_CAP_ATTR_GSP:
1404                 *cap = true;
1405                 break;
1406         case DCB_CAP_ATTR_PG_TCS:
1407         case DCB_CAP_ATTR_PFC_TCS:
1408                 *cap = 0x80;
1409                 break;
1410         case DCB_CAP_ATTR_DCBX:
1411                 *cap = (DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_CEE |
1412                         DCB_CAP_DCBX_VER_IEEE);
1413                 break;
1414         default:
1415                 *cap = false;
1416                 rc = 1;
1417         }
1418
1419         DP_VERBOSE(hwfn, QED_MSG_DCB, "id = %d caps = %d\n", capid, *cap);
1420         kfree(dcbx_info);
1421
1422         return rc;
1423 }
1424
1425 static int qed_dcbnl_getnumtcs(struct qed_dev *cdev, int tcid, u8 *num)
1426 {
1427         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1428         struct qed_dcbx_get *dcbx_info;
1429         int rc = 0;
1430
1431         DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d\n", tcid);
1432         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1433         if (!dcbx_info)
1434                 return -EINVAL;
1435
1436         switch (tcid) {
1437         case DCB_NUMTCS_ATTR_PG:
1438                 *num = dcbx_info->operational.params.max_ets_tc;
1439                 break;
1440         case DCB_NUMTCS_ATTR_PFC:
1441                 *num = dcbx_info->operational.params.pfc.max_tc;
1442                 break;
1443         default:
1444                 rc = -EINVAL;
1445         }
1446
1447         kfree(dcbx_info);
1448         DP_VERBOSE(hwfn, QED_MSG_DCB, "numtcs = %d\n", *num);
1449
1450         return rc;
1451 }
1452
1453 static u8 qed_dcbnl_getpfcstate(struct qed_dev *cdev)
1454 {
1455         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1456         struct qed_dcbx_get *dcbx_info;
1457         bool enabled;
1458
1459         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1460         if (!dcbx_info)
1461                 return 0;
1462
1463         enabled = dcbx_info->operational.params.pfc.enabled;
1464         DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d\n", enabled);
1465         kfree(dcbx_info);
1466
1467         return enabled;
1468 }
1469
1470 static u8 qed_dcbnl_getdcbx(struct qed_dev *cdev)
1471 {
1472         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1473         struct qed_dcbx_get *dcbx_info;
1474         u8 mode = 0;
1475
1476         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1477         if (!dcbx_info)
1478                 return 0;
1479
1480         if (dcbx_info->operational.enabled)
1481                 mode |= DCB_CAP_DCBX_LLD_MANAGED;
1482         if (dcbx_info->operational.ieee)
1483                 mode |= DCB_CAP_DCBX_VER_IEEE;
1484         if (dcbx_info->operational.cee)
1485                 mode |= DCB_CAP_DCBX_VER_CEE;
1486
1487         DP_VERBOSE(hwfn, QED_MSG_DCB, "dcb mode = %d\n", mode);
1488         kfree(dcbx_info);
1489
1490         return mode;
1491 }
1492
1493 static void qed_dcbnl_setpgtccfgtx(struct qed_dev *cdev,
1494                                    int tc,
1495                                    u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
1496 {
1497         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1498         struct qed_dcbx_set dcbx_set;
1499         struct qed_ptt *ptt;
1500         int rc;
1501
1502         DP_VERBOSE(hwfn, QED_MSG_DCB,
1503                    "tc = %d pri_type = %d pgid = %d bw_pct = %d up_map = %d\n",
1504                    tc, pri_type, pgid, bw_pct, up_map);
1505
1506         if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
1507                 DP_INFO(hwfn, "Invalid tc %d\n", tc);
1508                 return;
1509         }
1510
1511         memset(&dcbx_set, 0, sizeof(dcbx_set));
1512         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1513         if (rc)
1514                 return;
1515
1516         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1517         dcbx_set.config.params.ets_pri_tc_tbl[tc] = pgid;
1518
1519         ptt = qed_ptt_acquire(hwfn);
1520         if (!ptt)
1521                 return;
1522
1523         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1524
1525         qed_ptt_release(hwfn, ptt);
1526 }
1527
1528 static void qed_dcbnl_setpgtccfgrx(struct qed_dev *cdev, int prio,
1529                                    u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
1530 {
1531         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1532 }
1533
1534 static void qed_dcbnl_setpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 bw_pct)
1535 {
1536         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1537         struct qed_dcbx_set dcbx_set;
1538         struct qed_ptt *ptt;
1539         int rc;
1540
1541         DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d bw_pct = %d\n", pgid, bw_pct);
1542         if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
1543                 DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
1544                 return;
1545         }
1546
1547         memset(&dcbx_set, 0, sizeof(dcbx_set));
1548         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1549         if (rc)
1550                 return;
1551
1552         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1553         dcbx_set.config.params.ets_tc_bw_tbl[pgid] = bw_pct;
1554
1555         ptt = qed_ptt_acquire(hwfn);
1556         if (!ptt)
1557                 return;
1558
1559         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1560
1561         qed_ptt_release(hwfn, ptt);
1562 }
1563
1564 static void qed_dcbnl_setpgbwgcfgrx(struct qed_dev *cdev, int pgid, u8 bw_pct)
1565 {
1566         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1567 }
1568
1569 static u8 qed_dcbnl_setall(struct qed_dev *cdev)
1570 {
1571         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1572         struct qed_dcbx_set dcbx_set;
1573         struct qed_ptt *ptt;
1574         int rc;
1575
1576         memset(&dcbx_set, 0, sizeof(dcbx_set));
1577         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1578         if (rc)
1579                 return 1;
1580
1581         ptt = qed_ptt_acquire(hwfn);
1582         if (!ptt)
1583                 return 1;
1584
1585         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 1);
1586
1587         qed_ptt_release(hwfn, ptt);
1588
1589         return rc;
1590 }
1591
1592 static int qed_dcbnl_setnumtcs(struct qed_dev *cdev, int tcid, u8 num)
1593 {
1594         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1595         struct qed_dcbx_set dcbx_set;
1596         struct qed_ptt *ptt;
1597         int rc;
1598
1599         DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d num = %d\n", tcid, num);
1600         memset(&dcbx_set, 0, sizeof(dcbx_set));
1601         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1602         if (rc)
1603                 return 1;
1604
1605         switch (tcid) {
1606         case DCB_NUMTCS_ATTR_PG:
1607                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1608                 dcbx_set.config.params.max_ets_tc = num;
1609                 break;
1610         case DCB_NUMTCS_ATTR_PFC:
1611                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1612                 dcbx_set.config.params.pfc.max_tc = num;
1613                 break;
1614         default:
1615                 DP_INFO(hwfn, "Invalid tcid %d\n", tcid);
1616                 return -EINVAL;
1617         }
1618
1619         ptt = qed_ptt_acquire(hwfn);
1620         if (!ptt)
1621                 return -EINVAL;
1622
1623         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1624
1625         qed_ptt_release(hwfn, ptt);
1626
1627         return 0;
1628 }
1629
1630 static void qed_dcbnl_setpfcstate(struct qed_dev *cdev, u8 state)
1631 {
1632         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1633         struct qed_dcbx_set dcbx_set;
1634         struct qed_ptt *ptt;
1635         int rc;
1636
1637         DP_VERBOSE(hwfn, QED_MSG_DCB, "new state = %d\n", state);
1638
1639         memset(&dcbx_set, 0, sizeof(dcbx_set));
1640         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1641         if (rc)
1642                 return;
1643
1644         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1645         dcbx_set.config.params.pfc.enabled = !!state;
1646
1647         ptt = qed_ptt_acquire(hwfn);
1648         if (!ptt)
1649                 return;
1650
1651         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1652
1653         qed_ptt_release(hwfn, ptt);
1654 }
1655
1656 static int qed_dcbnl_getapp(struct qed_dev *cdev, u8 idtype, u16 idval)
1657 {
1658         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1659         struct qed_dcbx_get *dcbx_info;
1660         struct qed_app_entry *entry;
1661         bool ethtype;
1662         u8 prio = 0;
1663         int i;
1664
1665         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1666         if (!dcbx_info)
1667                 return -EINVAL;
1668
1669         ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
1670         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
1671                 entry = &dcbx_info->operational.params.app_entry[i];
1672                 if ((entry->ethtype == ethtype) && (entry->proto_id == idval)) {
1673                         prio = entry->prio;
1674                         break;
1675                 }
1676         }
1677
1678         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
1679                 DP_ERR(cdev, "App entry (%d, %d) not found\n", idtype, idval);
1680                 kfree(dcbx_info);
1681                 return -EINVAL;
1682         }
1683
1684         kfree(dcbx_info);
1685
1686         return prio;
1687 }
1688
1689 static int qed_dcbnl_setapp(struct qed_dev *cdev,
1690                             u8 idtype, u16 idval, u8 pri_map)
1691 {
1692         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1693         struct qed_dcbx_set dcbx_set;
1694         struct qed_app_entry *entry;
1695         struct qed_ptt *ptt;
1696         bool ethtype;
1697         int rc, i;
1698
1699         memset(&dcbx_set, 0, sizeof(dcbx_set));
1700         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1701         if (rc)
1702                 return -EINVAL;
1703
1704         ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
1705         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
1706                 entry = &dcbx_set.config.params.app_entry[i];
1707                 if ((entry->ethtype == ethtype) && (entry->proto_id == idval))
1708                         break;
1709                 /* First empty slot */
1710                 if (!entry->proto_id) {
1711                         dcbx_set.config.params.num_app_entries++;
1712                         break;
1713                 }
1714         }
1715
1716         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
1717                 DP_ERR(cdev, "App table is full\n");
1718                 return -EBUSY;
1719         }
1720
1721         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
1722         dcbx_set.config.params.app_entry[i].ethtype = ethtype;
1723         dcbx_set.config.params.app_entry[i].proto_id = idval;
1724         dcbx_set.config.params.app_entry[i].prio = pri_map;
1725
1726         ptt = qed_ptt_acquire(hwfn);
1727         if (!ptt)
1728                 return -EBUSY;
1729
1730         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1731
1732         qed_ptt_release(hwfn, ptt);
1733
1734         return rc;
1735 }
1736
1737 static u8 qed_dcbnl_setdcbx(struct qed_dev *cdev, u8 mode)
1738 {
1739         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1740         struct qed_dcbx_set dcbx_set;
1741         struct qed_ptt *ptt;
1742         int rc;
1743
1744         DP_VERBOSE(hwfn, QED_MSG_DCB, "new mode = %x\n", mode);
1745
1746         if (!(mode & DCB_CAP_DCBX_VER_IEEE) && !(mode & DCB_CAP_DCBX_VER_CEE)) {
1747                 DP_INFO(hwfn, "Allowed mode is cee, ieee or both\n");
1748                 return 1;
1749         }
1750
1751         memset(&dcbx_set, 0, sizeof(dcbx_set));
1752         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1753         if (rc)
1754                 return 1;
1755
1756         dcbx_set.ver_num = 0;
1757         if (mode & DCB_CAP_DCBX_VER_CEE) {
1758                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1759                 dcbx_set.enabled = true;
1760         }
1761
1762         if (mode & DCB_CAP_DCBX_VER_IEEE) {
1763                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1764                 dcbx_set.enabled = true;
1765         }
1766
1767         ptt = qed_ptt_acquire(hwfn);
1768         if (!ptt)
1769                 return 1;
1770
1771         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1772
1773         qed_ptt_release(hwfn, ptt);
1774
1775         return 0;
1776 }
1777
1778 static u8 qed_dcbnl_getfeatcfg(struct qed_dev *cdev, int featid, u8 *flags)
1779 {
1780         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1781         struct qed_dcbx_get *dcbx_info;
1782
1783         DP_VERBOSE(hwfn, QED_MSG_DCB, "Feature id  = %d\n", featid);
1784         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1785         if (!dcbx_info)
1786                 return 1;
1787
1788         *flags = 0;
1789         switch (featid) {
1790         case DCB_FEATCFG_ATTR_PG:
1791                 if (dcbx_info->operational.params.ets_enabled)
1792                         *flags = DCB_FEATCFG_ENABLE;
1793                 else
1794                         *flags = DCB_FEATCFG_ERROR;
1795                 break;
1796         case DCB_FEATCFG_ATTR_PFC:
1797                 if (dcbx_info->operational.params.pfc.enabled)
1798                         *flags = DCB_FEATCFG_ENABLE;
1799                 else
1800                         *flags = DCB_FEATCFG_ERROR;
1801                 break;
1802         case DCB_FEATCFG_ATTR_APP:
1803                 if (dcbx_info->operational.params.app_valid)
1804                         *flags = DCB_FEATCFG_ENABLE;
1805                 else
1806                         *flags = DCB_FEATCFG_ERROR;
1807                 break;
1808         default:
1809                 DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
1810                 kfree(dcbx_info);
1811                 return 1;
1812         }
1813
1814         DP_VERBOSE(hwfn, QED_MSG_DCB, "flags = %d\n", *flags);
1815         kfree(dcbx_info);
1816
1817         return 0;
1818 }
1819
1820 static u8 qed_dcbnl_setfeatcfg(struct qed_dev *cdev, int featid, u8 flags)
1821 {
1822         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1823         struct qed_dcbx_set dcbx_set;
1824         bool enabled, willing;
1825         struct qed_ptt *ptt;
1826         int rc;
1827
1828         DP_VERBOSE(hwfn, QED_MSG_DCB, "featid = %d flags = %d\n",
1829                    featid, flags);
1830         memset(&dcbx_set, 0, sizeof(dcbx_set));
1831         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1832         if (rc)
1833                 return 1;
1834
1835         enabled = !!(flags & DCB_FEATCFG_ENABLE);
1836         willing = !!(flags & DCB_FEATCFG_WILLING);
1837         switch (featid) {
1838         case DCB_FEATCFG_ATTR_PG:
1839                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1840                 dcbx_set.config.params.ets_enabled = enabled;
1841                 dcbx_set.config.params.ets_willing = willing;
1842                 break;
1843         case DCB_FEATCFG_ATTR_PFC:
1844                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1845                 dcbx_set.config.params.pfc.enabled = enabled;
1846                 dcbx_set.config.params.pfc.willing = willing;
1847                 break;
1848         case DCB_FEATCFG_ATTR_APP:
1849                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
1850                 dcbx_set.config.params.app_willing = willing;
1851                 break;
1852         default:
1853                 DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
1854                 return 1;
1855         }
1856
1857         ptt = qed_ptt_acquire(hwfn);
1858         if (!ptt)
1859                 return 1;
1860
1861         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1862
1863         qed_ptt_release(hwfn, ptt);
1864
1865         return 0;
1866 }
1867
1868 static int qed_dcbnl_peer_getappinfo(struct qed_dev *cdev,
1869                                      struct dcb_peer_app_info *info,
1870                                      u16 *app_count)
1871 {
1872         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1873         struct qed_dcbx_get *dcbx_info;
1874
1875         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1876         if (!dcbx_info)
1877                 return -EINVAL;
1878
1879         info->willing = dcbx_info->remote.params.app_willing;
1880         info->error = dcbx_info->remote.params.app_error;
1881         *app_count = dcbx_info->remote.params.num_app_entries;
1882         kfree(dcbx_info);
1883
1884         return 0;
1885 }
1886
1887 static int qed_dcbnl_peer_getapptable(struct qed_dev *cdev,
1888                                       struct dcb_app *table)
1889 {
1890         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1891         struct qed_dcbx_get *dcbx_info;
1892         int i;
1893
1894         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1895         if (!dcbx_info)
1896                 return -EINVAL;
1897
1898         for (i = 0; i < dcbx_info->remote.params.num_app_entries; i++) {
1899                 if (dcbx_info->remote.params.app_entry[i].ethtype)
1900                         table[i].selector = DCB_APP_IDTYPE_ETHTYPE;
1901                 else
1902                         table[i].selector = DCB_APP_IDTYPE_PORTNUM;
1903                 table[i].priority = dcbx_info->remote.params.app_entry[i].prio;
1904                 table[i].protocol =
1905                     dcbx_info->remote.params.app_entry[i].proto_id;
1906         }
1907
1908         kfree(dcbx_info);
1909
1910         return 0;
1911 }
1912
1913 static int qed_dcbnl_cee_peer_getpfc(struct qed_dev *cdev, struct cee_pfc *pfc)
1914 {
1915         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1916         struct qed_dcbx_get *dcbx_info;
1917         int i;
1918
1919         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1920         if (!dcbx_info)
1921                 return -EINVAL;
1922
1923         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
1924                 if (dcbx_info->remote.params.pfc.prio[i])
1925                         pfc->pfc_en |= BIT(i);
1926
1927         pfc->tcs_supported = dcbx_info->remote.params.pfc.max_tc;
1928         DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d tcs_supported = %d\n",
1929                    pfc->pfc_en, pfc->tcs_supported);
1930         kfree(dcbx_info);
1931
1932         return 0;
1933 }
1934
1935 static int qed_dcbnl_cee_peer_getpg(struct qed_dev *cdev, struct cee_pg *pg)
1936 {
1937         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1938         struct qed_dcbx_get *dcbx_info;
1939         int i;
1940
1941         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1942         if (!dcbx_info)
1943                 return -EINVAL;
1944
1945         pg->willing = dcbx_info->remote.params.ets_willing;
1946         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
1947                 pg->pg_bw[i] = dcbx_info->remote.params.ets_tc_bw_tbl[i];
1948                 pg->prio_pg[i] = dcbx_info->remote.params.ets_pri_tc_tbl[i];
1949         }
1950
1951         DP_VERBOSE(hwfn, QED_MSG_DCB, "willing = %d", pg->willing);
1952         kfree(dcbx_info);
1953
1954         return 0;
1955 }
1956
1957 static int qed_dcbnl_get_ieee_pfc(struct qed_dev *cdev,
1958                                   struct ieee_pfc *pfc, bool remote)
1959 {
1960         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1961         struct qed_dcbx_params *params;
1962         struct qed_dcbx_get *dcbx_info;
1963         int rc, i;
1964
1965         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1966         if (!dcbx_info)
1967                 return -EINVAL;
1968
1969         if (!dcbx_info->operational.ieee) {
1970                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
1971                 return -EINVAL;
1972         }
1973
1974         if (remote) {
1975                 memset(dcbx_info, 0, sizeof(*dcbx_info));
1976                 rc = qed_dcbx_query_params(hwfn, dcbx_info,
1977                                            QED_DCBX_REMOTE_MIB);
1978                 if (rc) {
1979                         kfree(dcbx_info);
1980                         return -EINVAL;
1981                 }
1982
1983                 params = &dcbx_info->remote.params;
1984         } else {
1985                 params = &dcbx_info->operational.params;
1986         }
1987
1988         pfc->pfc_cap = params->pfc.max_tc;
1989         pfc->pfc_en = 0;
1990         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
1991                 if (params->pfc.prio[i])
1992                         pfc->pfc_en |= BIT(i);
1993
1994         kfree(dcbx_info);
1995
1996         return 0;
1997 }
1998
1999 static int qed_dcbnl_ieee_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2000 {
2001         return qed_dcbnl_get_ieee_pfc(cdev, pfc, false);
2002 }
2003
2004 static int qed_dcbnl_ieee_setpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2005 {
2006         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2007         struct qed_dcbx_get *dcbx_info;
2008         struct qed_dcbx_set dcbx_set;
2009         struct qed_ptt *ptt;
2010         int rc, i;
2011
2012         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2013         if (!dcbx_info)
2014                 return -EINVAL;
2015
2016         if (!dcbx_info->operational.ieee) {
2017                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2018                 kfree(dcbx_info);
2019                 return -EINVAL;
2020         }
2021
2022         kfree(dcbx_info);
2023
2024         memset(&dcbx_set, 0, sizeof(dcbx_set));
2025         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2026         if (rc)
2027                 return -EINVAL;
2028
2029         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
2030         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2031                 dcbx_set.config.params.pfc.prio[i] = !!(pfc->pfc_en & BIT(i));
2032
2033         ptt = qed_ptt_acquire(hwfn);
2034         if (!ptt)
2035                 return -EINVAL;
2036
2037         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2038
2039         qed_ptt_release(hwfn, ptt);
2040
2041         return rc;
2042 }
2043
2044 static int qed_dcbnl_get_ieee_ets(struct qed_dev *cdev,
2045                                   struct ieee_ets *ets, bool remote)
2046 {
2047         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2048         struct qed_dcbx_get *dcbx_info;
2049         struct qed_dcbx_params *params;
2050         int rc;
2051
2052         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2053         if (!dcbx_info)
2054                 return -EINVAL;
2055
2056         if (!dcbx_info->operational.ieee) {
2057                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2058                 kfree(dcbx_info);
2059                 return -EINVAL;
2060         }
2061
2062         if (remote) {
2063                 memset(dcbx_info, 0, sizeof(*dcbx_info));
2064                 rc = qed_dcbx_query_params(hwfn, dcbx_info,
2065                                            QED_DCBX_REMOTE_MIB);
2066                 if (rc) {
2067                         kfree(dcbx_info);
2068                         return -EINVAL;
2069                 }
2070
2071                 params = &dcbx_info->remote.params;
2072         } else {
2073                 params = &dcbx_info->operational.params;
2074         }
2075
2076         ets->ets_cap = params->max_ets_tc;
2077         ets->willing = params->ets_willing;
2078         ets->cbs = params->ets_cbs;
2079         memcpy(ets->tc_tx_bw, params->ets_tc_bw_tbl, sizeof(ets->tc_tx_bw));
2080         memcpy(ets->tc_tsa, params->ets_tc_tsa_tbl, sizeof(ets->tc_tsa));
2081         memcpy(ets->prio_tc, params->ets_pri_tc_tbl, sizeof(ets->prio_tc));
2082         kfree(dcbx_info);
2083
2084         return 0;
2085 }
2086
2087 static int qed_dcbnl_ieee_getets(struct qed_dev *cdev, struct ieee_ets *ets)
2088 {
2089         return qed_dcbnl_get_ieee_ets(cdev, ets, false);
2090 }
2091
2092 static int qed_dcbnl_ieee_setets(struct qed_dev *cdev, struct ieee_ets *ets)
2093 {
2094         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2095         struct qed_dcbx_get *dcbx_info;
2096         struct qed_dcbx_set dcbx_set;
2097         struct qed_ptt *ptt;
2098         int rc;
2099
2100         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2101         if (!dcbx_info)
2102                 return -EINVAL;
2103
2104         if (!dcbx_info->operational.ieee) {
2105                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2106                 kfree(dcbx_info);
2107                 return -EINVAL;
2108         }
2109
2110         kfree(dcbx_info);
2111
2112         memset(&dcbx_set, 0, sizeof(dcbx_set));
2113         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2114         if (rc)
2115                 return -EINVAL;
2116
2117         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
2118         dcbx_set.config.params.max_ets_tc = ets->ets_cap;
2119         dcbx_set.config.params.ets_willing = ets->willing;
2120         dcbx_set.config.params.ets_cbs = ets->cbs;
2121         memcpy(dcbx_set.config.params.ets_tc_bw_tbl, ets->tc_tx_bw,
2122                sizeof(ets->tc_tx_bw));
2123         memcpy(dcbx_set.config.params.ets_tc_tsa_tbl, ets->tc_tsa,
2124                sizeof(ets->tc_tsa));
2125         memcpy(dcbx_set.config.params.ets_pri_tc_tbl, ets->prio_tc,
2126                sizeof(ets->prio_tc));
2127
2128         ptt = qed_ptt_acquire(hwfn);
2129         if (!ptt)
2130                 return -EINVAL;
2131
2132         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2133
2134         qed_ptt_release(hwfn, ptt);
2135
2136         return rc;
2137 }
2138
2139 int qed_dcbnl_ieee_peer_getets(struct qed_dev *cdev, struct ieee_ets *ets)
2140 {
2141         return qed_dcbnl_get_ieee_ets(cdev, ets, true);
2142 }
2143
2144 int qed_dcbnl_ieee_peer_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2145 {
2146         return qed_dcbnl_get_ieee_pfc(cdev, pfc, true);
2147 }
2148
2149 int qed_dcbnl_ieee_getapp(struct qed_dev *cdev, struct dcb_app *app)
2150 {
2151         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2152         struct qed_dcbx_get *dcbx_info;
2153         struct qed_app_entry *entry;
2154         bool ethtype;
2155         u8 prio = 0;
2156         int i;
2157
2158         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2159         if (!dcbx_info)
2160                 return -EINVAL;
2161
2162         if (!dcbx_info->operational.ieee) {
2163                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2164                 kfree(dcbx_info);
2165                 return -EINVAL;
2166         }
2167
2168         /* ieee defines the selector field value for ethertype to be 1 */
2169         ethtype = !!((app->selector - 1) == DCB_APP_IDTYPE_ETHTYPE);
2170         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
2171                 entry = &dcbx_info->operational.params.app_entry[i];
2172                 if ((entry->ethtype == ethtype) &&
2173                     (entry->proto_id == app->protocol)) {
2174                         prio = entry->prio;
2175                         break;
2176                 }
2177         }
2178
2179         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
2180                 DP_ERR(cdev, "App entry (%d, %d) not found\n", app->selector,
2181                        app->protocol);
2182                 kfree(dcbx_info);
2183                 return -EINVAL;
2184         }
2185
2186         app->priority = ffs(prio) - 1;
2187
2188         kfree(dcbx_info);
2189
2190         return 0;
2191 }
2192
2193 int qed_dcbnl_ieee_setapp(struct qed_dev *cdev, struct dcb_app *app)
2194 {
2195         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2196         struct qed_dcbx_get *dcbx_info;
2197         struct qed_dcbx_set dcbx_set;
2198         struct qed_app_entry *entry;
2199         struct qed_ptt *ptt;
2200         bool ethtype;
2201         int rc, i;
2202
2203         if (app->priority < 0 || app->priority >= QED_MAX_PFC_PRIORITIES) {
2204                 DP_INFO(hwfn, "Invalid priority %d\n", app->priority);
2205                 return -EINVAL;
2206         }
2207
2208         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2209         if (!dcbx_info)
2210                 return -EINVAL;
2211
2212         if (!dcbx_info->operational.ieee) {
2213                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2214                 kfree(dcbx_info);
2215                 return -EINVAL;
2216         }
2217
2218         kfree(dcbx_info);
2219
2220         memset(&dcbx_set, 0, sizeof(dcbx_set));
2221         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2222         if (rc)
2223                 return -EINVAL;
2224
2225         /* ieee defines the selector field value for ethertype to be 1 */
2226         ethtype = !!((app->selector - 1) == DCB_APP_IDTYPE_ETHTYPE);
2227         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
2228                 entry = &dcbx_set.config.params.app_entry[i];
2229                 if ((entry->ethtype == ethtype) &&
2230                     (entry->proto_id == app->protocol))
2231                         break;
2232                 /* First empty slot */
2233                 if (!entry->proto_id) {
2234                         dcbx_set.config.params.num_app_entries++;
2235                         break;
2236                 }
2237         }
2238
2239         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
2240                 DP_ERR(cdev, "App table is full\n");
2241                 return -EBUSY;
2242         }
2243
2244         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
2245         dcbx_set.config.params.app_entry[i].ethtype = ethtype;
2246         dcbx_set.config.params.app_entry[i].proto_id = app->protocol;
2247         dcbx_set.config.params.app_entry[i].prio = BIT(app->priority);
2248
2249         ptt = qed_ptt_acquire(hwfn);
2250         if (!ptt)
2251                 return -EBUSY;
2252
2253         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2254
2255         qed_ptt_release(hwfn, ptt);
2256
2257         return rc;
2258 }
2259
2260 const struct qed_eth_dcbnl_ops qed_dcbnl_ops_pass = {
2261         .getstate = qed_dcbnl_getstate,
2262         .setstate = qed_dcbnl_setstate,
2263         .getpgtccfgtx = qed_dcbnl_getpgtccfgtx,
2264         .getpgbwgcfgtx = qed_dcbnl_getpgbwgcfgtx,
2265         .getpgtccfgrx = qed_dcbnl_getpgtccfgrx,
2266         .getpgbwgcfgrx = qed_dcbnl_getpgbwgcfgrx,
2267         .getpfccfg = qed_dcbnl_getpfccfg,
2268         .setpfccfg = qed_dcbnl_setpfccfg,
2269         .getcap = qed_dcbnl_getcap,
2270         .getnumtcs = qed_dcbnl_getnumtcs,
2271         .getpfcstate = qed_dcbnl_getpfcstate,
2272         .getdcbx = qed_dcbnl_getdcbx,
2273         .setpgtccfgtx = qed_dcbnl_setpgtccfgtx,
2274         .setpgtccfgrx = qed_dcbnl_setpgtccfgrx,
2275         .setpgbwgcfgtx = qed_dcbnl_setpgbwgcfgtx,
2276         .setpgbwgcfgrx = qed_dcbnl_setpgbwgcfgrx,
2277         .setall = qed_dcbnl_setall,
2278         .setnumtcs = qed_dcbnl_setnumtcs,
2279         .setpfcstate = qed_dcbnl_setpfcstate,
2280         .setapp = qed_dcbnl_setapp,
2281         .setdcbx = qed_dcbnl_setdcbx,
2282         .setfeatcfg = qed_dcbnl_setfeatcfg,
2283         .getfeatcfg = qed_dcbnl_getfeatcfg,
2284         .getapp = qed_dcbnl_getapp,
2285         .peer_getappinfo = qed_dcbnl_peer_getappinfo,
2286         .peer_getapptable = qed_dcbnl_peer_getapptable,
2287         .cee_peer_getpfc = qed_dcbnl_cee_peer_getpfc,
2288         .cee_peer_getpg = qed_dcbnl_cee_peer_getpg,
2289         .ieee_getpfc = qed_dcbnl_ieee_getpfc,
2290         .ieee_setpfc = qed_dcbnl_ieee_setpfc,
2291         .ieee_getets = qed_dcbnl_ieee_getets,
2292         .ieee_setets = qed_dcbnl_ieee_setets,
2293         .ieee_peer_getpfc = qed_dcbnl_ieee_peer_getpfc,
2294         .ieee_peer_getets = qed_dcbnl_ieee_peer_getets,
2295         .ieee_getapp = qed_dcbnl_ieee_getapp,
2296         .ieee_setapp = qed_dcbnl_ieee_setapp,
2297 };
2298
2299 #endif