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 #include "qed_sriov.h"
  23 #ifdef CONFIG_DCB
  24 #include <linux/qed/qed_eth_if.h>
  25 #endif
  26
  27 #define QED_DCBX_MAX_MIB_READ_TRY       (100)
  28 #define QED_ETH_TYPE_DEFAULT            (0)
  29 #define QED_ETH_TYPE_ROCE               (0x8915)
  30 #define QED_UDP_PORT_TYPE_ROCE_V2       (0x12B7)
  31 #define QED_ETH_TYPE_FCOE               (0x8906)
  32 #define QED_TCP_PORT_ISCSI              (0xCBC)
  33
  34 #define QED_DCBX_INVALID_PRIORITY       0xFF
  35
  36 /* Get Traffic Class from priority traffic class table, 4 bits represent
  37  * the traffic class corresponding to the priority.
  38  */
  39 #define QED_DCBX_PRIO2TC(prio_tc_tbl, prio) \
  40         ((u32)(prio_tc_tbl >> ((7 - prio) * 4)) & 0x7)
  41
  42 static const struct qed_dcbx_app_metadata qed_dcbx_app_update[] = {
  43         {DCBX_PROTOCOL_ISCSI, "ISCSI", QED_PCI_DEFAULT},
  44         {DCBX_PROTOCOL_FCOE, "FCOE", QED_PCI_DEFAULT},
  45         {DCBX_PROTOCOL_ROCE, "ROCE", QED_PCI_DEFAULT},
  46         {DCBX_PROTOCOL_ROCE_V2, "ROCE_V2", QED_PCI_DEFAULT},
  47         {DCBX_PROTOCOL_ETH, "ETH", QED_PCI_ETH}
  48 };
  49
  50 static bool qed_dcbx_app_ethtype(u32 app_info_bitmap)
  51 {
  52         return !!(QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) ==
  53                   DCBX_APP_SF_ETHTYPE);
  54 }
  55
  56 static bool qed_dcbx_ieee_app_ethtype(u32 app_info_bitmap)
  57 {
  58         u8 mfw_val = QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE);
  59
  60         /* Old MFW */
  61         if (mfw_val == DCBX_APP_SF_IEEE_RESERVED)
  62                 return qed_dcbx_app_ethtype(app_info_bitmap);
  63
  64         return !!(mfw_val == DCBX_APP_SF_IEEE_ETHTYPE);
  65 }
  66
  67 static bool qed_dcbx_app_port(u32 app_info_bitmap)
  68 {
  69         return !!(QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) ==
  70                   DCBX_APP_SF_PORT);
  71 }
  72
  73 static bool qed_dcbx_ieee_app_port(u32 app_info_bitmap, u8 type)
  74 {
  75         u8 mfw_val = QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE);
  76
  77         /* Old MFW */
  78         if (mfw_val == DCBX_APP_SF_IEEE_RESERVED)
  79                 return qed_dcbx_app_port(app_info_bitmap);
  80
  81         return !!(mfw_val == type || mfw_val == DCBX_APP_SF_IEEE_TCP_UDP_PORT);
  82 }
  83
  84 static bool qed_dcbx_default_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
  85 {
  86         bool ethtype;
  87
  88         if (ieee)
  89                 ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
  90         else
  91                 ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
  92
  93         return !!(ethtype && (proto_id == QED_ETH_TYPE_DEFAULT));
  94 }
  95
  96 static bool qed_dcbx_iscsi_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
  97 {
  98         bool port;
  99
 100         if (ieee)
 101                 port = qed_dcbx_ieee_app_port(app_info_bitmap,
 102                                               DCBX_APP_SF_IEEE_TCP_PORT);
 103         else
 104                 port = qed_dcbx_app_port(app_info_bitmap);
 105
 106         return !!(port && (proto_id == QED_TCP_PORT_ISCSI));
 107 }
 108
 109 static bool qed_dcbx_fcoe_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
 110 {
 111         bool ethtype;
 112
 113         if (ieee)
 114                 ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
 115         else
 116                 ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
 117
 118         return !!(ethtype && (proto_id == QED_ETH_TYPE_FCOE));
 119 }
 120
 121 static bool qed_dcbx_roce_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
 122 {
 123         bool ethtype;
 124
 125         if (ieee)
 126                 ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
 127         else
 128                 ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
 129
 130         return !!(ethtype && (proto_id == QED_ETH_TYPE_ROCE));
 131 }
 132
 133 static bool qed_dcbx_roce_v2_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
 134 {
 135         bool port;
 136
 137         if (ieee)
 138                 port = qed_dcbx_ieee_app_port(app_info_bitmap,
 139                                               DCBX_APP_SF_IEEE_UDP_PORT);
 140         else
 141                 port = qed_dcbx_app_port(app_info_bitmap);
 142
 143         return !!(port && (proto_id == QED_UDP_PORT_TYPE_ROCE_V2));
 144 }
 145
 146 static void
 147 qed_dcbx_dp_protocol(struct qed_hwfn *p_hwfn, struct qed_dcbx_results *p_data)
 148 {
 149         enum dcbx_protocol_type id;
 150         int i;
 151
 152         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "DCBX negotiated: %d\n",
 153                    p_data->dcbx_enabled);
 154
 155         for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) {
 156                 id = qed_dcbx_app_update[i].id;
 157
 158                 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 159                            "%s info: update %d, enable %d, prio %d, tc %d, num_tc %d\n",
 160                            qed_dcbx_app_update[i].name, p_data->arr[id].update,
 161                            p_data->arr[id].enable, p_data->arr[id].priority,
 162                            p_data->arr[id].tc, p_hwfn->hw_info.num_tc);
 163         }
 164 }
 165
 166 static void
 167 qed_dcbx_set_params(struct qed_dcbx_results *p_data,
 168                     struct qed_hw_info *p_info,
 169                     bool enable,
 170                     bool update,
 171                     u8 prio,
 172                     u8 tc,
 173                     enum dcbx_protocol_type type,
 174                     enum qed_pci_personality personality)
 175 {
 176         /* PF update ramrod data */
 177         p_data->arr[type].update = update;
 178         p_data->arr[type].enable = enable;
 179         p_data->arr[type].priority = prio;
 180         p_data->arr[type].tc = tc;
 181
 182         /* QM reconf data */
 183         if (p_info->personality == personality) {
 184                 if (personality == QED_PCI_ETH)
 185                         p_info->non_offload_tc = tc;
 186                 else
 187                         p_info->offload_tc = tc;
 188         }
 189 }
 190
 191 /* Update app protocol data and hw_info fields with the TLV info */
 192 static void
 193 qed_dcbx_update_app_info(struct qed_dcbx_results *p_data,
 194                          struct qed_hwfn *p_hwfn,
 195                          bool enable,
 196                          bool update,
 197                          u8 prio, u8 tc, enum dcbx_protocol_type type)
 198 {
 199         struct qed_hw_info *p_info = &p_hwfn->hw_info;
 200         enum qed_pci_personality personality;
 201         enum dcbx_protocol_type id;
 202         char *name;
 203         int i;
 204
 205         for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) {
 206                 id = qed_dcbx_app_update[i].id;
 207
 208                 if (type != id)
 209                         continue;
 210
 211                 personality = qed_dcbx_app_update[i].personality;
 212                 name = qed_dcbx_app_update[i].name;
 213
 214                 qed_dcbx_set_params(p_data, p_info, enable, update,
 215                                     prio, tc, type, personality);
 216         }
 217 }
 218
 219 static bool
 220 qed_dcbx_get_app_protocol_type(struct qed_hwfn *p_hwfn,
 221                                u32 app_prio_bitmap,
 222                                u16 id, enum dcbx_protocol_type *type, bool ieee)
 223 {
 224         if (qed_dcbx_fcoe_tlv(app_prio_bitmap, id, ieee)) {
 225                 *type = DCBX_PROTOCOL_FCOE;
 226         } else if (qed_dcbx_roce_tlv(app_prio_bitmap, id, ieee)) {
 227                 *type = DCBX_PROTOCOL_ROCE;
 228         } else if (qed_dcbx_iscsi_tlv(app_prio_bitmap, id, ieee)) {
 229                 *type = DCBX_PROTOCOL_ISCSI;
 230         } else if (qed_dcbx_default_tlv(app_prio_bitmap, id, ieee)) {
 231                 *type = DCBX_PROTOCOL_ETH;
 232         } else if (qed_dcbx_roce_v2_tlv(app_prio_bitmap, id, ieee)) {
 233                 *type = DCBX_PROTOCOL_ROCE_V2;
 234         } else {
 235                 *type = DCBX_MAX_PROTOCOL_TYPE;
 236                 DP_ERR(p_hwfn,
 237                        "No action required, App TLV id = 0x%x app_prio_bitmap = 0x%x\n",
 238                        id, app_prio_bitmap);
 239                 return false;
 240         }
 241
 242         return true;
 243 }
 244
 245 /* Parse app TLV's to update TC information in hw_info structure for
 246  * reconfiguring QM. Get protocol specific data for PF update ramrod command.
 247  */
 248 static int
 249 qed_dcbx_process_tlv(struct qed_hwfn *p_hwfn,
 250                      struct qed_dcbx_results *p_data,
 251                      struct dcbx_app_priority_entry *p_tbl,
 252                      u32 pri_tc_tbl, int count, u8 dcbx_version)
 253 {
 254         u8 tc, priority_map;
 255         enum dcbx_protocol_type type;
 256         bool enable, ieee;
 257         u16 protocol_id;
 258         int priority;
 259         int i;
 260
 261         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Num APP entries = %d\n", count);
 262
 263         ieee = (dcbx_version == DCBX_CONFIG_VERSION_IEEE);
 264         /* Parse APP TLV */
 265         for (i = 0; i < count; i++) {
 266                 protocol_id = QED_MFW_GET_FIELD(p_tbl[i].entry,
 267                                                 DCBX_APP_PROTOCOL_ID);
 268                 priority_map = QED_MFW_GET_FIELD(p_tbl[i].entry,
 269                                                  DCBX_APP_PRI_MAP);
 270                 priority = ffs(priority_map) - 1;
 271                 if (priority < 0) {
 272                         DP_ERR(p_hwfn, "Invalid priority\n");
 273                         return -EINVAL;
 274                 }
 275
 276                 tc = QED_DCBX_PRIO2TC(pri_tc_tbl, priority);
 277                 if (qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
 278                                                    protocol_id, &type, ieee)) {
 279                         /* ETH always have the enable bit reset, as it gets
 280                          * vlan information per packet. For other protocols,
 281                          * should be set according to the dcbx_enabled
 282                          * indication, but we only got here if there was an
 283                          * app tlv for the protocol, so dcbx must be enabled.
 284                          */
 285                         enable = !(type == DCBX_PROTOCOL_ETH);
 286
 287                         qed_dcbx_update_app_info(p_data, p_hwfn, enable, true,
 288                                                  priority, tc, type);
 289                 }
 290         }
 291
 292         /* If RoCE-V2 TLV is not detected, driver need to use RoCE app
 293          * data for RoCE-v2 not the default app data.
 294          */
 295         if (!p_data->arr[DCBX_PROTOCOL_ROCE_V2].update &&
 296             p_data->arr[DCBX_PROTOCOL_ROCE].update) {
 297                 tc = p_data->arr[DCBX_PROTOCOL_ROCE].tc;
 298                 priority = p_data->arr[DCBX_PROTOCOL_ROCE].priority;
 299                 qed_dcbx_update_app_info(p_data, p_hwfn, true, true,
 300                                          priority, tc, DCBX_PROTOCOL_ROCE_V2);
 301         }
 302
 303         /* Update ramrod protocol data and hw_info fields
 304          * with default info when corresponding APP TLV's are not detected.
 305          * The enabled field has a different logic for ethernet as only for
 306          * ethernet dcb should disabled by default, as the information arrives
 307          * from the OS (unless an explicit app tlv was present).
 308          */
 309         tc = p_data->arr[DCBX_PROTOCOL_ETH].tc;
 310         priority = p_data->arr[DCBX_PROTOCOL_ETH].priority;
 311         for (type = 0; type < DCBX_MAX_PROTOCOL_TYPE; type++) {
 312                 if (p_data->arr[type].update)
 313                         continue;
 314
 315                 enable = !(type == DCBX_PROTOCOL_ETH);
 316                 qed_dcbx_update_app_info(p_data, p_hwfn, enable, true,
 317                                          priority, tc, type);
 318         }
 319
 320         return 0;
 321 }
 322
 323 /* Parse app TLV's to update TC information in hw_info structure for
 324  * reconfiguring QM. Get protocol specific data for PF update ramrod command.
 325  */
 326 static int qed_dcbx_process_mib_info(struct qed_hwfn *p_hwfn)
 327 {
 328         struct dcbx_app_priority_feature *p_app;
 329         struct dcbx_app_priority_entry *p_tbl;
 330         struct qed_dcbx_results data = { 0 };
 331         struct dcbx_ets_feature *p_ets;
 332         struct qed_hw_info *p_info;
 333         u32 pri_tc_tbl, flags;
 334         u8 dcbx_version;
 335         int num_entries;
 336         int rc = 0;
 337
 338         flags = p_hwfn->p_dcbx_info->operational.flags;
 339         dcbx_version = QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION);
 340
 341         p_app = &p_hwfn->p_dcbx_info->operational.features.app;
 342         p_tbl = p_app->app_pri_tbl;
 343
 344         p_ets = &p_hwfn->p_dcbx_info->operational.features.ets;
 345         pri_tc_tbl = p_ets->pri_tc_tbl[0];
 346
 347         p_info = &p_hwfn->hw_info;
 348         num_entries = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_NUM_ENTRIES);
 349
 350         rc = qed_dcbx_process_tlv(p_hwfn, &data, p_tbl, pri_tc_tbl,
 351                                   num_entries, dcbx_version);
 352         if (rc)
 353                 return rc;
 354
 355         p_info->num_tc = QED_MFW_GET_FIELD(p_ets->flags, DCBX_ETS_MAX_TCS);
 356         data.pf_id = p_hwfn->rel_pf_id;
 357         data.dcbx_enabled = !!dcbx_version;
 358
 359         qed_dcbx_dp_protocol(p_hwfn, &data);
 360
 361         memcpy(&p_hwfn->p_dcbx_info->results, &data,
 362                sizeof(struct qed_dcbx_results));
 363
 364         return 0;
 365 }
 366
 367 static int
 368 qed_dcbx_copy_mib(struct qed_hwfn *p_hwfn,
 369                   struct qed_ptt *p_ptt,
 370                   struct qed_dcbx_mib_meta_data *p_data,
 371                   enum qed_mib_read_type type)
 372 {
 373         u32 prefix_seq_num, suffix_seq_num;
 374         int read_count = 0;
 375         int rc = 0;
 376
 377         /* The data is considered to be valid only if both sequence numbers are
 378          * the same.
 379          */
 380         do {
 381                 if (type == QED_DCBX_REMOTE_LLDP_MIB) {
 382                         qed_memcpy_from(p_hwfn, p_ptt, p_data->lldp_remote,
 383                                         p_data->addr, p_data->size);
 384                         prefix_seq_num = p_data->lldp_remote->prefix_seq_num;
 385                         suffix_seq_num = p_data->lldp_remote->suffix_seq_num;
 386                 } else {
 387                         qed_memcpy_from(p_hwfn, p_ptt, p_data->mib,
 388                                         p_data->addr, p_data->size);
 389                         prefix_seq_num = p_data->mib->prefix_seq_num;
 390                         suffix_seq_num = p_data->mib->suffix_seq_num;
 391                 }
 392                 read_count++;
 393
 394                 DP_VERBOSE(p_hwfn,
 395                            QED_MSG_DCB,
 396                            "mib type = %d, try count = %d prefix seq num  = %d suffix seq num = %d\n",
 397                            type, read_count, prefix_seq_num, suffix_seq_num);
 398         } while ((prefix_seq_num != suffix_seq_num) &&
 399                  (read_count < QED_DCBX_MAX_MIB_READ_TRY));
 400
 401         if (read_count >= QED_DCBX_MAX_MIB_READ_TRY) {
 402                 DP_ERR(p_hwfn,
 403                        "MIB read err, mib type = %d, try count = %d prefix seq num = %d suffix seq num = %d\n",
 404                        type, read_count, prefix_seq_num, suffix_seq_num);
 405                 rc = -EIO;
 406         }
 407
 408         return rc;
 409 }
 410
 411 #ifdef CONFIG_DCB
 412 static void
 413 qed_dcbx_get_priority_info(struct qed_hwfn *p_hwfn,
 414                            struct qed_dcbx_app_prio *p_prio,
 415                            struct qed_dcbx_results *p_results)
 416 {
 417         u8 val;
 418
 419         p_prio->roce = QED_DCBX_INVALID_PRIORITY;
 420         p_prio->roce_v2 = QED_DCBX_INVALID_PRIORITY;
 421         p_prio->iscsi = QED_DCBX_INVALID_PRIORITY;
 422         p_prio->fcoe = QED_DCBX_INVALID_PRIORITY;
 423
 424         if (p_results->arr[DCBX_PROTOCOL_ROCE].update &&
 425             p_results->arr[DCBX_PROTOCOL_ROCE].enable)
 426                 p_prio->roce = p_results->arr[DCBX_PROTOCOL_ROCE].priority;
 427
 428         if (p_results->arr[DCBX_PROTOCOL_ROCE_V2].update &&
 429             p_results->arr[DCBX_PROTOCOL_ROCE_V2].enable) {
 430                 val = p_results->arr[DCBX_PROTOCOL_ROCE_V2].priority;
 431                 p_prio->roce_v2 = val;
 432         }
 433
 434         if (p_results->arr[DCBX_PROTOCOL_ISCSI].update &&
 435             p_results->arr[DCBX_PROTOCOL_ISCSI].enable)
 436                 p_prio->iscsi = p_results->arr[DCBX_PROTOCOL_ISCSI].priority;
 437
 438         if (p_results->arr[DCBX_PROTOCOL_FCOE].update &&
 439             p_results->arr[DCBX_PROTOCOL_FCOE].enable)
 440                 p_prio->fcoe = p_results->arr[DCBX_PROTOCOL_FCOE].priority;
 441
 442         if (p_results->arr[DCBX_PROTOCOL_ETH].update &&
 443             p_results->arr[DCBX_PROTOCOL_ETH].enable)
 444                 p_prio->eth = p_results->arr[DCBX_PROTOCOL_ETH].priority;
 445
 446         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 447                    "Priorities: iscsi %d, roce %d, roce v2 %d, fcoe %d, eth %d\n",
 448                    p_prio->iscsi, p_prio->roce, p_prio->roce_v2, p_prio->fcoe,
 449                    p_prio->eth);
 450 }
 451
 452 static void
 453 qed_dcbx_get_app_data(struct qed_hwfn *p_hwfn,
 454                       struct dcbx_app_priority_feature *p_app,
 455                       struct dcbx_app_priority_entry *p_tbl,
 456                       struct qed_dcbx_params *p_params, bool ieee)
 457 {
 458         struct qed_app_entry *entry;
 459         u8 pri_map;
 460         int i;
 461
 462         p_params->app_willing = QED_MFW_GET_FIELD(p_app->flags,
 463                                                   DCBX_APP_WILLING);
 464         p_params->app_valid = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_ENABLED);
 465         p_params->app_error = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_ERROR);
 466         p_params->num_app_entries = QED_MFW_GET_FIELD(p_app->flags,
 467                                                       DCBX_APP_NUM_ENTRIES);
 468         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
 469                 entry = &p_params->app_entry[i];
 470                 if (ieee) {
 471                         u8 sf_ieee;
 472                         u32 val;
 473
 474                         sf_ieee = QED_MFW_GET_FIELD(p_tbl[i].entry,
 475                                                     DCBX_APP_SF_IEEE);
 476                         switch (sf_ieee) {
 477                         case DCBX_APP_SF_IEEE_RESERVED:
 478                                 /* Old MFW */
 479                                 val = QED_MFW_GET_FIELD(p_tbl[i].entry,
 480                                                         DCBX_APP_SF);
 481                                 entry->sf_ieee = val ?
 482                                     QED_DCBX_SF_IEEE_TCP_UDP_PORT :
 483                                     QED_DCBX_SF_IEEE_ETHTYPE;
 484                                 break;
 485                         case DCBX_APP_SF_IEEE_ETHTYPE:
 486                                 entry->sf_ieee = QED_DCBX_SF_IEEE_ETHTYPE;
 487                                 break;
 488                         case DCBX_APP_SF_IEEE_TCP_PORT:
 489                                 entry->sf_ieee = QED_DCBX_SF_IEEE_TCP_PORT;
 490                                 break;
 491                         case DCBX_APP_SF_IEEE_UDP_PORT:
 492                                 entry->sf_ieee = QED_DCBX_SF_IEEE_UDP_PORT;
 493                                 break;
 494                         case DCBX_APP_SF_IEEE_TCP_UDP_PORT:
 495                                 entry->sf_ieee = QED_DCBX_SF_IEEE_TCP_UDP_PORT;
 496                                 break;
 497                         }
 498                 } else {
 499                         entry->ethtype = !(QED_MFW_GET_FIELD(p_tbl[i].entry,
 500                                                              DCBX_APP_SF));
 501                 }
 502
 503                 pri_map = QED_MFW_GET_FIELD(p_tbl[i].entry, DCBX_APP_PRI_MAP);
 504                 entry->prio = ffs(pri_map) - 1;
 505                 entry->proto_id = QED_MFW_GET_FIELD(p_tbl[i].entry,
 506                                                     DCBX_APP_PROTOCOL_ID);
 507                 qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
 508                                                entry->proto_id,
 509                                                &entry->proto_type, ieee);
 510         }
 511
 512         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 513                    "APP params: willing %d, valid %d error = %d\n",
 514                    p_params->app_willing, p_params->app_valid,
 515                    p_params->app_error);
 516 }
 517
 518 static void
 519 qed_dcbx_get_pfc_data(struct qed_hwfn *p_hwfn,
 520                       u32 pfc, struct qed_dcbx_params *p_params)
 521 {
 522         u8 pfc_map;
 523
 524         p_params->pfc.willing = QED_MFW_GET_FIELD(pfc, DCBX_PFC_WILLING);
 525         p_params->pfc.max_tc = QED_MFW_GET_FIELD(pfc, DCBX_PFC_CAPS);
 526         p_params->pfc.enabled = QED_MFW_GET_FIELD(pfc, DCBX_PFC_ENABLED);
 527         pfc_map = QED_MFW_GET_FIELD(pfc, DCBX_PFC_PRI_EN_BITMAP);
 528         p_params->pfc.prio[0] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_0);
 529         p_params->pfc.prio[1] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_1);
 530         p_params->pfc.prio[2] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_2);
 531         p_params->pfc.prio[3] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_3);
 532         p_params->pfc.prio[4] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_4);
 533         p_params->pfc.prio[5] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_5);
 534         p_params->pfc.prio[6] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_6);
 535         p_params->pfc.prio[7] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_7);
 536
 537         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 538                    "PFC params: willing %d, pfc_bitmap %d\n",
 539                    p_params->pfc.willing, pfc_map);
 540 }
 541
 542 static void
 543 qed_dcbx_get_ets_data(struct qed_hwfn *p_hwfn,
 544                       struct dcbx_ets_feature *p_ets,
 545                       struct qed_dcbx_params *p_params)
 546 {
 547         u32 bw_map[2], tsa_map[2], pri_map;
 548         int i;
 549
 550         p_params->ets_willing = QED_MFW_GET_FIELD(p_ets->flags,
 551                                                   DCBX_ETS_WILLING);
 552         p_params->ets_enabled = QED_MFW_GET_FIELD(p_ets->flags,
 553                                                   DCBX_ETS_ENABLED);
 554         p_params->ets_cbs = QED_MFW_GET_FIELD(p_ets->flags, DCBX_ETS_CBS);
 555         p_params->max_ets_tc = QED_MFW_GET_FIELD(p_ets->flags,
 556                                                  DCBX_ETS_MAX_TCS);
 557         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 558                    "ETS params: willing %d, ets_cbs %d pri_tc_tbl_0 %x max_ets_tc %d\n",
 559                    p_params->ets_willing,
 560                    p_params->ets_cbs,
 561                    p_ets->pri_tc_tbl[0], p_params->max_ets_tc);
 562
 563         /* 8 bit tsa and bw data corresponding to each of the 8 TC's are
 564          * encoded in a type u32 array of size 2.
 565          */
 566         bw_map[0] = be32_to_cpu(p_ets->tc_bw_tbl[0]);
 567         bw_map[1] = be32_to_cpu(p_ets->tc_bw_tbl[1]);
 568         tsa_map[0] = be32_to_cpu(p_ets->tc_tsa_tbl[0]);
 569         tsa_map[1] = be32_to_cpu(p_ets->tc_tsa_tbl[1]);
 570         pri_map = p_ets->pri_tc_tbl[0];
 571         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
 572                 p_params->ets_tc_bw_tbl[i] = ((u8 *)bw_map)[i];
 573                 p_params->ets_tc_tsa_tbl[i] = ((u8 *)tsa_map)[i];
 574                 p_params->ets_pri_tc_tbl[i] = QED_DCBX_PRIO2TC(pri_map, i);
 575                 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 576                            "elem %d  bw_tbl %x tsa_tbl %x\n",
 577                            i, p_params->ets_tc_bw_tbl[i],
 578                            p_params->ets_tc_tsa_tbl[i]);
 579         }
 580 }
 581
 582 static void
 583 qed_dcbx_get_common_params(struct qed_hwfn *p_hwfn,
 584                            struct dcbx_app_priority_feature *p_app,
 585                            struct dcbx_app_priority_entry *p_tbl,
 586                            struct dcbx_ets_feature *p_ets,
 587                            u32 pfc, struct qed_dcbx_params *p_params, bool ieee)
 588 {
 589         qed_dcbx_get_app_data(p_hwfn, p_app, p_tbl, p_params, ieee);
 590         qed_dcbx_get_ets_data(p_hwfn, p_ets, p_params);
 591         qed_dcbx_get_pfc_data(p_hwfn, pfc, p_params);
 592 }
 593
 594 static void
 595 qed_dcbx_get_local_params(struct qed_hwfn *p_hwfn,
 596                           struct qed_ptt *p_ptt, struct qed_dcbx_get *params)
 597 {
 598         struct dcbx_features *p_feat;
 599
 600         p_feat = &p_hwfn->p_dcbx_info->local_admin.features;
 601         qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
 602                                    p_feat->app.app_pri_tbl, &p_feat->ets,
 603                                    p_feat->pfc, &params->local.params, false);
 604         params->local.valid = true;
 605 }
 606
 607 static void
 608 qed_dcbx_get_remote_params(struct qed_hwfn *p_hwfn,
 609                            struct qed_ptt *p_ptt, struct qed_dcbx_get *params)
 610 {
 611         struct dcbx_features *p_feat;
 612
 613         p_feat = &p_hwfn->p_dcbx_info->remote.features;
 614         qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
 615                                    p_feat->app.app_pri_tbl, &p_feat->ets,
 616                                    p_feat->pfc, &params->remote.params, false);
 617         params->remote.valid = true;
 618 }
 619
 620 static void
 621 qed_dcbx_get_operational_params(struct qed_hwfn *p_hwfn,
 622                                 struct qed_ptt *p_ptt,
 623                                 struct qed_dcbx_get *params)
 624 {
 625         struct qed_dcbx_operational_params *p_operational;
 626         struct qed_dcbx_results *p_results;
 627         struct dcbx_features *p_feat;
 628         bool enabled, err;
 629         u32 flags;
 630         bool val;
 631
 632         flags = p_hwfn->p_dcbx_info->operational.flags;
 633
 634         /* If DCBx version is non zero, then negotiation
 635          * was successfuly performed
 636          */
 637         p_operational = &params->operational;
 638         enabled = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) !=
 639                      DCBX_CONFIG_VERSION_DISABLED);
 640         if (!enabled) {
 641                 p_operational->enabled = enabled;
 642                 p_operational->valid = false;
 643                 return;
 644         }
 645
 646         p_feat = &p_hwfn->p_dcbx_info->operational.features;
 647         p_results = &p_hwfn->p_dcbx_info->results;
 648
 649         val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
 650                  DCBX_CONFIG_VERSION_IEEE);
 651         p_operational->ieee = val;
 652         val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
 653                  DCBX_CONFIG_VERSION_CEE);
 654         p_operational->cee = val;
 655
 656         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Version support: ieee %d, cee %d\n",
 657                    p_operational->ieee, p_operational->cee);
 658
 659         qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
 660                                    p_feat->app.app_pri_tbl, &p_feat->ets,
 661                                    p_feat->pfc, &params->operational.params,
 662                                    p_operational->ieee);
 663         qed_dcbx_get_priority_info(p_hwfn, &p_operational->app_prio, p_results);
 664         err = QED_MFW_GET_FIELD(p_feat->app.flags, DCBX_APP_ERROR);
 665         p_operational->err = err;
 666         p_operational->enabled = enabled;
 667         p_operational->valid = true;
 668 }
 669
 670 static void
 671 qed_dcbx_get_local_lldp_params(struct qed_hwfn *p_hwfn,
 672                                struct qed_ptt *p_ptt,
 673                                struct qed_dcbx_get *params)
 674 {
 675         struct lldp_config_params_s *p_local;
 676
 677         p_local = &p_hwfn->p_dcbx_info->lldp_local[LLDP_NEAREST_BRIDGE];
 678
 679         memcpy(params->lldp_local.local_chassis_id, p_local->local_chassis_id,
 680                ARRAY_SIZE(p_local->local_chassis_id));
 681         memcpy(params->lldp_local.local_port_id, p_local->local_port_id,
 682                ARRAY_SIZE(p_local->local_port_id));
 683 }
 684
 685 static void
 686 qed_dcbx_get_remote_lldp_params(struct qed_hwfn *p_hwfn,
 687                                 struct qed_ptt *p_ptt,
 688                                 struct qed_dcbx_get *params)
 689 {
 690         struct lldp_status_params_s *p_remote;
 691
 692         p_remote = &p_hwfn->p_dcbx_info->lldp_remote[LLDP_NEAREST_BRIDGE];
 693
 694         memcpy(params->lldp_remote.peer_chassis_id, p_remote->peer_chassis_id,
 695                ARRAY_SIZE(p_remote->peer_chassis_id));
 696         memcpy(params->lldp_remote.peer_port_id, p_remote->peer_port_id,
 697                ARRAY_SIZE(p_remote->peer_port_id));
 698 }
 699
 700 static int
 701 qed_dcbx_get_params(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
 702                     struct qed_dcbx_get *p_params,
 703                     enum qed_mib_read_type type)
 704 {
 705         switch (type) {
 706         case QED_DCBX_REMOTE_MIB:
 707                 qed_dcbx_get_remote_params(p_hwfn, p_ptt, p_params);
 708                 break;
 709         case QED_DCBX_LOCAL_MIB:
 710                 qed_dcbx_get_local_params(p_hwfn, p_ptt, p_params);
 711                 break;
 712         case QED_DCBX_OPERATIONAL_MIB:
 713                 qed_dcbx_get_operational_params(p_hwfn, p_ptt, p_params);
 714                 break;
 715         case QED_DCBX_REMOTE_LLDP_MIB:
 716                 qed_dcbx_get_remote_lldp_params(p_hwfn, p_ptt, p_params);
 717                 break;
 718         case QED_DCBX_LOCAL_LLDP_MIB:
 719                 qed_dcbx_get_local_lldp_params(p_hwfn, p_ptt, p_params);
 720                 break;
 721         default:
 722                 DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
 723                 return -EINVAL;
 724         }
 725
 726         return 0;
 727 }
 728 #endif
 729
 730 static int
 731 qed_dcbx_read_local_lldp_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 732 {
 733         struct qed_dcbx_mib_meta_data data;
 734         int rc = 0;
 735
 736         memset(&data, 0, sizeof(data));
 737         data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
 738                                                            lldp_config_params);
 739         data.lldp_local = p_hwfn->p_dcbx_info->lldp_local;
 740         data.size = sizeof(struct lldp_config_params_s);
 741         qed_memcpy_from(p_hwfn, p_ptt, data.lldp_local, data.addr, data.size);
 742
 743         return rc;
 744 }
 745
 746 static int
 747 qed_dcbx_read_remote_lldp_mib(struct qed_hwfn *p_hwfn,
 748                               struct qed_ptt *p_ptt,
 749                               enum qed_mib_read_type type)
 750 {
 751         struct qed_dcbx_mib_meta_data data;
 752         int rc = 0;
 753
 754         memset(&data, 0, sizeof(data));
 755         data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
 756                                                            lldp_status_params);
 757         data.lldp_remote = p_hwfn->p_dcbx_info->lldp_remote;
 758         data.size = sizeof(struct lldp_status_params_s);
 759         rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 760
 761         return rc;
 762 }
 763
 764 static int
 765 qed_dcbx_read_operational_mib(struct qed_hwfn *p_hwfn,
 766                               struct qed_ptt *p_ptt,
 767                               enum qed_mib_read_type type)
 768 {
 769         struct qed_dcbx_mib_meta_data data;
 770         int rc = 0;
 771
 772         memset(&data, 0, sizeof(data));
 773         data.addr = p_hwfn->mcp_info->port_addr +
 774                     offsetof(struct public_port, operational_dcbx_mib);
 775         data.mib = &p_hwfn->p_dcbx_info->operational;
 776         data.size = sizeof(struct dcbx_mib);
 777         rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 778
 779         return rc;
 780 }
 781
 782 static int
 783 qed_dcbx_read_remote_mib(struct qed_hwfn *p_hwfn,
 784                          struct qed_ptt *p_ptt, enum qed_mib_read_type type)
 785 {
 786         struct qed_dcbx_mib_meta_data data;
 787         int rc = 0;
 788
 789         memset(&data, 0, sizeof(data));
 790         data.addr = p_hwfn->mcp_info->port_addr +
 791                     offsetof(struct public_port, remote_dcbx_mib);
 792         data.mib = &p_hwfn->p_dcbx_info->remote;
 793         data.size = sizeof(struct dcbx_mib);
 794         rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 795
 796         return rc;
 797 }
 798
 799 static int
 800 qed_dcbx_read_local_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 801 {
 802         struct qed_dcbx_mib_meta_data data;
 803         int rc = 0;
 804
 805         memset(&data, 0, sizeof(data));
 806         data.addr = p_hwfn->mcp_info->port_addr +
 807                     offsetof(struct public_port, local_admin_dcbx_mib);
 808         data.local_admin = &p_hwfn->p_dcbx_info->local_admin;
 809         data.size = sizeof(struct dcbx_local_params);
 810         qed_memcpy_from(p_hwfn, p_ptt, data.local_admin, data.addr, data.size);
 811
 812         return rc;
 813 }
 814
 815 static int qed_dcbx_read_mib(struct qed_hwfn *p_hwfn,
 816                              struct qed_ptt *p_ptt, enum qed_mib_read_type type)
 817 {
 818         int rc = -EINVAL;
 819
 820         switch (type) {
 821         case QED_DCBX_OPERATIONAL_MIB:
 822                 rc = qed_dcbx_read_operational_mib(p_hwfn, p_ptt, type);
 823                 break;
 824         case QED_DCBX_REMOTE_MIB:
 825                 rc = qed_dcbx_read_remote_mib(p_hwfn, p_ptt, type);
 826                 break;
 827         case QED_DCBX_LOCAL_MIB:
 828                 rc = qed_dcbx_read_local_mib(p_hwfn, p_ptt);
 829                 break;
 830         case QED_DCBX_REMOTE_LLDP_MIB:
 831                 rc = qed_dcbx_read_remote_lldp_mib(p_hwfn, p_ptt, type);
 832                 break;
 833         case QED_DCBX_LOCAL_LLDP_MIB:
 834                 rc = qed_dcbx_read_local_lldp_mib(p_hwfn, p_ptt);
 835                 break;
 836         default:
 837                 DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
 838         }
 839
 840         return rc;
 841 }
 842
 843 /* Read updated MIB.
 844  * Reconfigure QM and invoke PF update ramrod command if operational MIB
 845  * change is detected.
 846  */
 847 int
 848 qed_dcbx_mib_update_event(struct qed_hwfn *p_hwfn,
 849                           struct qed_ptt *p_ptt, enum qed_mib_read_type type)
 850 {
 851         int rc = 0;
 852
 853         rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type);
 854         if (rc)
 855                 return rc;
 856
 857         if (type == QED_DCBX_OPERATIONAL_MIB) {
 858                 rc = qed_dcbx_process_mib_info(p_hwfn);
 859                 if (!rc) {
 860                         /* reconfigure tcs of QM queues according
 861                          * to negotiation results
 862                          */
 863                         qed_qm_reconf(p_hwfn, p_ptt);
 864
 865                         /* update storm FW with negotiation results */
 866                         qed_sp_pf_update(p_hwfn);
 867                 }
 868         }
 869
 870         return rc;
 871 }
 872
 873 int qed_dcbx_info_alloc(struct qed_hwfn *p_hwfn)
 874 {
 875         int rc = 0;
 876
 877         p_hwfn->p_dcbx_info = kzalloc(sizeof(*p_hwfn->p_dcbx_info), GFP_KERNEL);
 878         if (!p_hwfn->p_dcbx_info) {
 879                 DP_NOTICE(p_hwfn,
 880                           "Failed to allocate 'struct qed_dcbx_info'\n");
 881                 rc = -ENOMEM;
 882         }
 883
 884         return rc;
 885 }
 886
 887 void qed_dcbx_info_free(struct qed_hwfn *p_hwfn,
 888                         struct qed_dcbx_info *p_dcbx_info)
 889 {
 890         kfree(p_hwfn->p_dcbx_info);
 891 }
 892
 893 static void qed_dcbx_update_protocol_data(struct protocol_dcb_data *p_data,
 894                                           struct qed_dcbx_results *p_src,
 895                                           enum dcbx_protocol_type type)
 896 {
 897         p_data->dcb_enable_flag = p_src->arr[type].enable;
 898         p_data->dcb_priority = p_src->arr[type].priority;
 899         p_data->dcb_tc = p_src->arr[type].tc;
 900 }
 901
 902 /* Set pf update ramrod command params */
 903 void qed_dcbx_set_pf_update_params(struct qed_dcbx_results *p_src,
 904                                    struct pf_update_ramrod_data *p_dest)
 905 {
 906         struct protocol_dcb_data *p_dcb_data;
 907         bool update_flag = false;
 908
 909         p_dest->pf_id = p_src->pf_id;
 910
 911         update_flag = p_src->arr[DCBX_PROTOCOL_FCOE].update;
 912         p_dest->update_fcoe_dcb_data_flag = update_flag;
 913
 914         update_flag = p_src->arr[DCBX_PROTOCOL_ROCE].update;
 915         p_dest->update_roce_dcb_data_flag = update_flag;
 916         update_flag = p_src->arr[DCBX_PROTOCOL_ROCE_V2].update;
 917         p_dest->update_roce_dcb_data_flag = update_flag;
 918
 919         update_flag = p_src->arr[DCBX_PROTOCOL_ISCSI].update;
 920         p_dest->update_iscsi_dcb_data_flag = update_flag;
 921         update_flag = p_src->arr[DCBX_PROTOCOL_ETH].update;
 922         p_dest->update_eth_dcb_data_flag = update_flag;
 923
 924         p_dcb_data = &p_dest->fcoe_dcb_data;
 925         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_FCOE);
 926         p_dcb_data = &p_dest->roce_dcb_data;
 927
 928         if (p_src->arr[DCBX_PROTOCOL_ROCE].update)
 929                 qed_dcbx_update_protocol_data(p_dcb_data, p_src,
 930                                               DCBX_PROTOCOL_ROCE);
 931         if (p_src->arr[DCBX_PROTOCOL_ROCE_V2].update)
 932                 qed_dcbx_update_protocol_data(p_dcb_data, p_src,
 933                                               DCBX_PROTOCOL_ROCE_V2);
 934
 935         p_dcb_data = &p_dest->iscsi_dcb_data;
 936         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ISCSI);
 937         p_dcb_data = &p_dest->eth_dcb_data;
 938         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ETH);
 939 }
 940
 941 #ifdef CONFIG_DCB
 942 static int qed_dcbx_query_params(struct qed_hwfn *p_hwfn,
 943                                  struct qed_dcbx_get *p_get,
 944                                  enum qed_mib_read_type type)
 945 {
 946         struct qed_ptt *p_ptt;
 947         int rc;
 948
 949         if (IS_VF(p_hwfn->cdev))
 950                 return -EINVAL;
 951
 952         p_ptt = qed_ptt_acquire(p_hwfn);
 953         if (!p_ptt)
 954                 return -EBUSY;
 955
 956         rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type);
 957         if (rc)
 958                 goto out;
 959
 960         rc = qed_dcbx_get_params(p_hwfn, p_ptt, p_get, type);
 961
 962 out:
 963         qed_ptt_release(p_hwfn, p_ptt);
 964         return rc;
 965 }
 966
 967 static void
 968 qed_dcbx_set_pfc_data(struct qed_hwfn *p_hwfn,
 969                       u32 *pfc, struct qed_dcbx_params *p_params)
 970 {
 971         u8 pfc_map = 0;
 972         int i;
 973
 974         if (p_params->pfc.willing)
 975                 *pfc |= DCBX_PFC_WILLING_MASK;
 976         else
 977                 *pfc &= ~DCBX_PFC_WILLING_MASK;
 978
 979         if (p_params->pfc.enabled)
 980                 *pfc |= DCBX_PFC_ENABLED_MASK;
 981         else
 982                 *pfc &= ~DCBX_PFC_ENABLED_MASK;
 983
 984         *pfc &= ~DCBX_PFC_CAPS_MASK;
 985         *pfc |= (u32)p_params->pfc.max_tc << DCBX_PFC_CAPS_SHIFT;
 986
 987         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
 988                 if (p_params->pfc.prio[i])
 989                         pfc_map |= BIT(i);
 990
 991         *pfc |= (pfc_map << DCBX_PFC_PRI_EN_BITMAP_SHIFT);
 992
 993         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "pfc = 0x%x\n", *pfc);
 994 }
 995
 996 static void
 997 qed_dcbx_set_ets_data(struct qed_hwfn *p_hwfn,
 998                       struct dcbx_ets_feature *p_ets,
 999                       struct qed_dcbx_params *p_params)
1000 {
1001         u8 *bw_map, *tsa_map;
1002         u32 val;
1003         int i;
1004
1005         if (p_params->ets_willing)
1006                 p_ets->flags |= DCBX_ETS_WILLING_MASK;
1007         else
1008                 p_ets->flags &= ~DCBX_ETS_WILLING_MASK;
1009
1010         if (p_params->ets_cbs)
1011                 p_ets->flags |= DCBX_ETS_CBS_MASK;
1012         else
1013                 p_ets->flags &= ~DCBX_ETS_CBS_MASK;
1014
1015         if (p_params->ets_enabled)
1016                 p_ets->flags |= DCBX_ETS_ENABLED_MASK;
1017         else
1018                 p_ets->flags &= ~DCBX_ETS_ENABLED_MASK;
1019
1020         p_ets->flags &= ~DCBX_ETS_MAX_TCS_MASK;
1021         p_ets->flags |= (u32)p_params->max_ets_tc << DCBX_ETS_MAX_TCS_SHIFT;
1022
1023         bw_map = (u8 *)&p_ets->tc_bw_tbl[0];
1024         tsa_map = (u8 *)&p_ets->tc_tsa_tbl[0];
1025         p_ets->pri_tc_tbl[0] = 0;
1026         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
1027                 bw_map[i] = p_params->ets_tc_bw_tbl[i];
1028                 tsa_map[i] = p_params->ets_tc_tsa_tbl[i];
1029                 /* Copy the priority value to the corresponding 4 bits in the
1030                  * traffic class table.
1031                  */
1032                 val = (((u32)p_params->ets_pri_tc_tbl[i]) << ((7 - i) * 4));
1033                 p_ets->pri_tc_tbl[0] |= val;
1034         }
1035         for (i = 0; i < 2; i++) {
1036                 p_ets->tc_bw_tbl[i] = cpu_to_be32(p_ets->tc_bw_tbl[i]);
1037                 p_ets->tc_tsa_tbl[i] = cpu_to_be32(p_ets->tc_tsa_tbl[i]);
1038         }
1039 }
1040
1041 static void
1042 qed_dcbx_set_app_data(struct qed_hwfn *p_hwfn,
1043                       struct dcbx_app_priority_feature *p_app,
1044                       struct qed_dcbx_params *p_params, bool ieee)
1045 {
1046         u32 *entry;
1047         int i;
1048
1049         if (p_params->app_willing)
1050                 p_app->flags |= DCBX_APP_WILLING_MASK;
1051         else
1052                 p_app->flags &= ~DCBX_APP_WILLING_MASK;
1053
1054         if (p_params->app_valid)
1055                 p_app->flags |= DCBX_APP_ENABLED_MASK;
1056         else
1057                 p_app->flags &= ~DCBX_APP_ENABLED_MASK;
1058
1059         p_app->flags &= ~DCBX_APP_NUM_ENTRIES_MASK;
1060         p_app->flags |= (u32)p_params->num_app_entries <<
1061             DCBX_APP_NUM_ENTRIES_SHIFT;
1062
1063         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
1064                 entry = &p_app->app_pri_tbl[i].entry;
1065                 if (ieee) {
1066                         *entry &= ~(DCBX_APP_SF_IEEE_MASK | DCBX_APP_SF_MASK);
1067                         switch (p_params->app_entry[i].sf_ieee) {
1068                         case QED_DCBX_SF_IEEE_ETHTYPE:
1069                                 *entry |= ((u32)DCBX_APP_SF_IEEE_ETHTYPE <<
1070                                            DCBX_APP_SF_IEEE_SHIFT);
1071                                 *entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
1072                                            DCBX_APP_SF_SHIFT);
1073                                 break;
1074                         case QED_DCBX_SF_IEEE_TCP_PORT:
1075                                 *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_PORT <<
1076                                            DCBX_APP_SF_IEEE_SHIFT);
1077                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1078                                            DCBX_APP_SF_SHIFT);
1079                                 break;
1080                         case QED_DCBX_SF_IEEE_UDP_PORT:
1081                                 *entry |= ((u32)DCBX_APP_SF_IEEE_UDP_PORT <<
1082                                            DCBX_APP_SF_IEEE_SHIFT);
1083                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1084                                            DCBX_APP_SF_SHIFT);
1085                                 break;
1086                         case QED_DCBX_SF_IEEE_TCP_UDP_PORT:
1087                                 *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_UDP_PORT <<
1088                                            DCBX_APP_SF_IEEE_SHIFT);
1089                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1090                                            DCBX_APP_SF_SHIFT);
1091                                 break;
1092                         }
1093                 } else {
1094                         *entry &= ~DCBX_APP_SF_MASK;
1095                         if (p_params->app_entry[i].ethtype)
1096                                 *entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
1097                                            DCBX_APP_SF_SHIFT);
1098                         else
1099                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1100                                            DCBX_APP_SF_SHIFT);
1101                 }
1102
1103                 *entry &= ~DCBX_APP_PROTOCOL_ID_MASK;
1104                 *entry |= ((u32)p_params->app_entry[i].proto_id <<
1105                            DCBX_APP_PROTOCOL_ID_SHIFT);
1106                 *entry &= ~DCBX_APP_PRI_MAP_MASK;
1107                 *entry |= ((u32)(p_params->app_entry[i].prio) <<
1108                            DCBX_APP_PRI_MAP_SHIFT);
1109         }
1110 }
1111
1112 static void
1113 qed_dcbx_set_local_params(struct qed_hwfn *p_hwfn,
1114                           struct dcbx_local_params *local_admin,
1115                           struct qed_dcbx_set *params)
1116 {
1117         bool ieee = false;
1118
1119         local_admin->flags = 0;
1120         memcpy(&local_admin->features,
1121                &p_hwfn->p_dcbx_info->operational.features,
1122                sizeof(local_admin->features));
1123
1124         if (params->enabled) {
1125                 local_admin->config = params->ver_num;
1126                 ieee = !!(params->ver_num & DCBX_CONFIG_VERSION_IEEE);
1127         } else {
1128                 local_admin->config = DCBX_CONFIG_VERSION_DISABLED;
1129         }
1130
1131         if (params->override_flags & QED_DCBX_OVERRIDE_PFC_CFG)
1132                 qed_dcbx_set_pfc_data(p_hwfn, &local_admin->features.pfc,
1133                                       &params->config.params);
1134
1135         if (params->override_flags & QED_DCBX_OVERRIDE_ETS_CFG)
1136                 qed_dcbx_set_ets_data(p_hwfn, &local_admin->features.ets,
1137                                       &params->config.params);
1138
1139         if (params->override_flags & QED_DCBX_OVERRIDE_APP_CFG)
1140                 qed_dcbx_set_app_data(p_hwfn, &local_admin->features.app,
1141                                       &params->config.params, ieee);
1142 }
1143
1144 int qed_dcbx_config_params(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
1145                            struct qed_dcbx_set *params, bool hw_commit)
1146 {
1147         struct dcbx_local_params local_admin;
1148         struct qed_dcbx_mib_meta_data data;
1149         u32 resp = 0, param = 0;
1150         int rc = 0;
1151
1152         if (!hw_commit) {
1153                 memcpy(&p_hwfn->p_dcbx_info->set, params,
1154                        sizeof(struct qed_dcbx_set));
1155                 return 0;
1156         }
1157
1158         /* clear set-parmas cache */
1159         memset(&p_hwfn->p_dcbx_info->set, 0, sizeof(p_hwfn->p_dcbx_info->set));
1160
1161         memset(&local_admin, 0, sizeof(local_admin));
1162         qed_dcbx_set_local_params(p_hwfn, &local_admin, params);
1163
1164         data.addr = p_hwfn->mcp_info->port_addr +
1165             offsetof(struct public_port, local_admin_dcbx_mib);
1166         data.local_admin = &local_admin;
1167         data.size = sizeof(struct dcbx_local_params);
1168         qed_memcpy_to(p_hwfn, p_ptt, data.addr, data.local_admin, data.size);
1169
1170         rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_SET_DCBX,
1171                          1 << DRV_MB_PARAM_LLDP_SEND_SHIFT, &resp, &param);
1172         if (rc)
1173                 DP_NOTICE(p_hwfn, "Failed to send DCBX update request\n");
1174
1175         return rc;
1176 }
1177
1178 int qed_dcbx_get_config_params(struct qed_hwfn *p_hwfn,
1179                                struct qed_dcbx_set *params)
1180 {
1181         struct qed_dcbx_get *dcbx_info;
1182         int rc;
1183
1184         if (p_hwfn->p_dcbx_info->set.config.valid) {
1185                 memcpy(params, &p_hwfn->p_dcbx_info->set,
1186                        sizeof(struct qed_dcbx_set));
1187                 return 0;
1188         }
1189
1190         dcbx_info = kmalloc(sizeof(*dcbx_info), GFP_KERNEL);
1191         if (!dcbx_info) {
1192                 DP_ERR(p_hwfn, "Failed to allocate struct qed_dcbx_info\n");
1193                 return -ENOMEM;
1194         }
1195
1196         rc = qed_dcbx_query_params(p_hwfn, dcbx_info, QED_DCBX_OPERATIONAL_MIB);
1197         if (rc) {
1198                 kfree(dcbx_info);
1199                 return rc;
1200         }
1201
1202         p_hwfn->p_dcbx_info->set.override_flags = 0;
1203         p_hwfn->p_dcbx_info->set.ver_num = DCBX_CONFIG_VERSION_DISABLED;
1204         if (dcbx_info->operational.cee)
1205                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1206         if (dcbx_info->operational.ieee)
1207                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1208
1209         p_hwfn->p_dcbx_info->set.enabled = dcbx_info->operational.enabled;
1210         memcpy(&p_hwfn->p_dcbx_info->set.config.params,
1211                &dcbx_info->operational.params,
1212                sizeof(struct qed_dcbx_admin_params));
1213         p_hwfn->p_dcbx_info->set.config.valid = true;
1214
1215         memcpy(params, &p_hwfn->p_dcbx_info->set, sizeof(struct qed_dcbx_set));
1216
1217         kfree(dcbx_info);
1218
1219         return 0;
1220 }
1221
1222 static struct qed_dcbx_get *qed_dcbnl_get_dcbx(struct qed_hwfn *hwfn,
1223                                                enum qed_mib_read_type type)
1224 {
1225         struct qed_dcbx_get *dcbx_info;
1226
1227         dcbx_info = kmalloc(sizeof(*dcbx_info), GFP_KERNEL);
1228         if (!dcbx_info) {
1229                 DP_ERR(hwfn->cdev, "Failed to allocate memory for dcbx_info\n");
1230                 return NULL;
1231         }
1232
1233         if (qed_dcbx_query_params(hwfn, dcbx_info, type)) {
1234                 kfree(dcbx_info);
1235                 return NULL;
1236         }
1237
1238         if ((type == QED_DCBX_OPERATIONAL_MIB) &&
1239             !dcbx_info->operational.enabled) {
1240                 DP_INFO(hwfn, "DCBX is not enabled/operational\n");
1241                 kfree(dcbx_info);
1242                 return NULL;
1243         }
1244
1245         return dcbx_info;
1246 }
1247
1248 static u8 qed_dcbnl_getstate(struct qed_dev *cdev)
1249 {
1250         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1251         struct qed_dcbx_get *dcbx_info;
1252         bool enabled;
1253
1254         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1255         if (!dcbx_info)
1256                 return 0;
1257
1258         enabled = dcbx_info->operational.enabled;
1259         DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", enabled);
1260         kfree(dcbx_info);
1261
1262         return enabled;
1263 }
1264
1265 static u8 qed_dcbnl_setstate(struct qed_dev *cdev, u8 state)
1266 {
1267         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1268         struct qed_dcbx_set dcbx_set;
1269         struct qed_ptt *ptt;
1270         int rc;
1271
1272         DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", state);
1273
1274         memset(&dcbx_set, 0, sizeof(dcbx_set));
1275         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1276         if (rc)
1277                 return 1;
1278
1279         dcbx_set.enabled = !!state;
1280
1281         ptt = qed_ptt_acquire(hwfn);
1282         if (!ptt)
1283                 return 1;
1284
1285         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1286
1287         qed_ptt_release(hwfn, ptt);
1288
1289         return rc ? 1 : 0;
1290 }
1291
1292 static void qed_dcbnl_getpgtccfgtx(struct qed_dev *cdev, int tc, u8 *prio_type,
1293                                    u8 *pgid, u8 *bw_pct, u8 *up_map)
1294 {
1295         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1296         struct qed_dcbx_get *dcbx_info;
1297
1298         DP_VERBOSE(hwfn, QED_MSG_DCB, "tc = %d\n", tc);
1299         *prio_type = *pgid = *bw_pct = *up_map = 0;
1300         if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
1301                 DP_INFO(hwfn, "Invalid tc %d\n", tc);
1302                 return;
1303         }
1304
1305         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1306         if (!dcbx_info)
1307                 return;
1308
1309         *pgid = dcbx_info->operational.params.ets_pri_tc_tbl[tc];
1310         kfree(dcbx_info);
1311 }
1312
1313 static void qed_dcbnl_getpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 *bw_pct)
1314 {
1315         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1316         struct qed_dcbx_get *dcbx_info;
1317
1318         *bw_pct = 0;
1319         DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d\n", pgid);
1320         if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
1321                 DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
1322                 return;
1323         }
1324
1325         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1326         if (!dcbx_info)
1327                 return;
1328
1329         *bw_pct = dcbx_info->operational.params.ets_tc_bw_tbl[pgid];
1330         DP_VERBOSE(hwfn, QED_MSG_DCB, "bw_pct = %d\n", *bw_pct);
1331         kfree(dcbx_info);
1332 }
1333
1334 static void qed_dcbnl_getpgtccfgrx(struct qed_dev *cdev, int tc, u8 *prio,
1335                                    u8 *bwg_id, u8 *bw_pct, u8 *up_map)
1336 {
1337         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1338         *prio = *bwg_id = *bw_pct = *up_map = 0;
1339 }
1340
1341 static void qed_dcbnl_getpgbwgcfgrx(struct qed_dev *cdev,
1342                                     int bwg_id, u8 *bw_pct)
1343 {
1344         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1345         *bw_pct = 0;
1346 }
1347
1348 static void qed_dcbnl_getpfccfg(struct qed_dev *cdev,
1349                                 int priority, u8 *setting)
1350 {
1351         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1352         struct qed_dcbx_get *dcbx_info;
1353
1354         DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d\n", priority);
1355         if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
1356                 DP_INFO(hwfn, "Invalid priority %d\n", priority);
1357                 return;
1358         }
1359
1360         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1361         if (!dcbx_info)
1362                 return;
1363
1364         *setting = dcbx_info->operational.params.pfc.prio[priority];
1365         DP_VERBOSE(hwfn, QED_MSG_DCB, "setting = %d\n", *setting);
1366         kfree(dcbx_info);
1367 }
1368
1369 static void qed_dcbnl_setpfccfg(struct qed_dev *cdev, int priority, u8 setting)
1370 {
1371         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1372         struct qed_dcbx_set dcbx_set;
1373         struct qed_ptt *ptt;
1374         int rc;
1375
1376         DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d setting = %d\n",
1377                    priority, setting);
1378         if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
1379                 DP_INFO(hwfn, "Invalid priority %d\n", priority);
1380                 return;
1381         }
1382
1383         memset(&dcbx_set, 0, sizeof(dcbx_set));
1384         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1385         if (rc)
1386                 return;
1387
1388         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1389         dcbx_set.config.params.pfc.prio[priority] = !!setting;
1390
1391         ptt = qed_ptt_acquire(hwfn);
1392         if (!ptt)
1393                 return;
1394
1395         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1396
1397         qed_ptt_release(hwfn, ptt);
1398 }
1399
1400 static u8 qed_dcbnl_getcap(struct qed_dev *cdev, int capid, u8 *cap)
1401 {
1402         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1403         struct qed_dcbx_get *dcbx_info;
1404         int rc = 0;
1405
1406         DP_VERBOSE(hwfn, QED_MSG_DCB, "capid = %d\n", capid);
1407         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1408         if (!dcbx_info)
1409                 return 1;
1410
1411         switch (capid) {
1412         case DCB_CAP_ATTR_PG:
1413         case DCB_CAP_ATTR_PFC:
1414         case DCB_CAP_ATTR_UP2TC:
1415         case DCB_CAP_ATTR_GSP:
1416                 *cap = true;
1417                 break;
1418         case DCB_CAP_ATTR_PG_TCS:
1419         case DCB_CAP_ATTR_PFC_TCS:
1420                 *cap = 0x80;
1421                 break;
1422         case DCB_CAP_ATTR_DCBX:
1423                 *cap = (DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_CEE |
1424                         DCB_CAP_DCBX_VER_IEEE);
1425                 break;
1426         default:
1427                 *cap = false;
1428                 rc = 1;
1429         }
1430
1431         DP_VERBOSE(hwfn, QED_MSG_DCB, "id = %d caps = %d\n", capid, *cap);
1432         kfree(dcbx_info);
1433
1434         return rc;
1435 }
1436
1437 static int qed_dcbnl_getnumtcs(struct qed_dev *cdev, int tcid, u8 *num)
1438 {
1439         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1440         struct qed_dcbx_get *dcbx_info;
1441         int rc = 0;
1442
1443         DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d\n", tcid);
1444         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1445         if (!dcbx_info)
1446                 return -EINVAL;
1447
1448         switch (tcid) {
1449         case DCB_NUMTCS_ATTR_PG:
1450                 *num = dcbx_info->operational.params.max_ets_tc;
1451                 break;
1452         case DCB_NUMTCS_ATTR_PFC:
1453                 *num = dcbx_info->operational.params.pfc.max_tc;
1454                 break;
1455         default:
1456                 rc = -EINVAL;
1457         }
1458
1459         kfree(dcbx_info);
1460         DP_VERBOSE(hwfn, QED_MSG_DCB, "numtcs = %d\n", *num);
1461
1462         return rc;
1463 }
1464
1465 static u8 qed_dcbnl_getpfcstate(struct qed_dev *cdev)
1466 {
1467         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1468         struct qed_dcbx_get *dcbx_info;
1469         bool enabled;
1470
1471         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1472         if (!dcbx_info)
1473                 return 0;
1474
1475         enabled = dcbx_info->operational.params.pfc.enabled;
1476         DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d\n", enabled);
1477         kfree(dcbx_info);
1478
1479         return enabled;
1480 }
1481
1482 static u8 qed_dcbnl_getdcbx(struct qed_dev *cdev)
1483 {
1484         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1485         struct qed_dcbx_get *dcbx_info;
1486         u8 mode = 0;
1487
1488         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1489         if (!dcbx_info)
1490                 return 0;
1491
1492         if (dcbx_info->operational.enabled)
1493                 mode |= DCB_CAP_DCBX_LLD_MANAGED;
1494         if (dcbx_info->operational.ieee)
1495                 mode |= DCB_CAP_DCBX_VER_IEEE;
1496         if (dcbx_info->operational.cee)
1497                 mode |= DCB_CAP_DCBX_VER_CEE;
1498
1499         DP_VERBOSE(hwfn, QED_MSG_DCB, "dcb mode = %d\n", mode);
1500         kfree(dcbx_info);
1501
1502         return mode;
1503 }
1504
1505 static void qed_dcbnl_setpgtccfgtx(struct qed_dev *cdev,
1506                                    int tc,
1507                                    u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
1508 {
1509         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1510         struct qed_dcbx_set dcbx_set;
1511         struct qed_ptt *ptt;
1512         int rc;
1513
1514         DP_VERBOSE(hwfn, QED_MSG_DCB,
1515                    "tc = %d pri_type = %d pgid = %d bw_pct = %d up_map = %d\n",
1516                    tc, pri_type, pgid, bw_pct, up_map);
1517
1518         if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
1519                 DP_INFO(hwfn, "Invalid tc %d\n", tc);
1520                 return;
1521         }
1522
1523         memset(&dcbx_set, 0, sizeof(dcbx_set));
1524         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1525         if (rc)
1526                 return;
1527
1528         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1529         dcbx_set.config.params.ets_pri_tc_tbl[tc] = pgid;
1530
1531         ptt = qed_ptt_acquire(hwfn);
1532         if (!ptt)
1533                 return;
1534
1535         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1536
1537         qed_ptt_release(hwfn, ptt);
1538 }
1539
1540 static void qed_dcbnl_setpgtccfgrx(struct qed_dev *cdev, int prio,
1541                                    u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
1542 {
1543         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1544 }
1545
1546 static void qed_dcbnl_setpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 bw_pct)
1547 {
1548         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1549         struct qed_dcbx_set dcbx_set;
1550         struct qed_ptt *ptt;
1551         int rc;
1552
1553         DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d bw_pct = %d\n", pgid, bw_pct);
1554         if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
1555                 DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
1556                 return;
1557         }
1558
1559         memset(&dcbx_set, 0, sizeof(dcbx_set));
1560         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1561         if (rc)
1562                 return;
1563
1564         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1565         dcbx_set.config.params.ets_tc_bw_tbl[pgid] = bw_pct;
1566
1567         ptt = qed_ptt_acquire(hwfn);
1568         if (!ptt)
1569                 return;
1570
1571         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1572
1573         qed_ptt_release(hwfn, ptt);
1574 }
1575
1576 static void qed_dcbnl_setpgbwgcfgrx(struct qed_dev *cdev, int pgid, u8 bw_pct)
1577 {
1578         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1579 }
1580
1581 static u8 qed_dcbnl_setall(struct qed_dev *cdev)
1582 {
1583         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1584         struct qed_dcbx_set dcbx_set;
1585         struct qed_ptt *ptt;
1586         int rc;
1587
1588         memset(&dcbx_set, 0, sizeof(dcbx_set));
1589         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1590         if (rc)
1591                 return 1;
1592
1593         ptt = qed_ptt_acquire(hwfn);
1594         if (!ptt)
1595                 return 1;
1596
1597         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 1);
1598
1599         qed_ptt_release(hwfn, ptt);
1600
1601         return rc;
1602 }
1603
1604 static int qed_dcbnl_setnumtcs(struct qed_dev *cdev, int tcid, u8 num)
1605 {
1606         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1607         struct qed_dcbx_set dcbx_set;
1608         struct qed_ptt *ptt;
1609         int rc;
1610
1611         DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d num = %d\n", tcid, num);
1612         memset(&dcbx_set, 0, sizeof(dcbx_set));
1613         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1614         if (rc)
1615                 return 1;
1616
1617         switch (tcid) {
1618         case DCB_NUMTCS_ATTR_PG:
1619                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1620                 dcbx_set.config.params.max_ets_tc = num;
1621                 break;
1622         case DCB_NUMTCS_ATTR_PFC:
1623                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1624                 dcbx_set.config.params.pfc.max_tc = num;
1625                 break;
1626         default:
1627                 DP_INFO(hwfn, "Invalid tcid %d\n", tcid);
1628                 return -EINVAL;
1629         }
1630
1631         ptt = qed_ptt_acquire(hwfn);
1632         if (!ptt)
1633                 return -EINVAL;
1634
1635         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1636
1637         qed_ptt_release(hwfn, ptt);
1638
1639         return 0;
1640 }
1641
1642 static void qed_dcbnl_setpfcstate(struct qed_dev *cdev, u8 state)
1643 {
1644         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1645         struct qed_dcbx_set dcbx_set;
1646         struct qed_ptt *ptt;
1647         int rc;
1648
1649         DP_VERBOSE(hwfn, QED_MSG_DCB, "new state = %d\n", state);
1650
1651         memset(&dcbx_set, 0, sizeof(dcbx_set));
1652         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1653         if (rc)
1654                 return;
1655
1656         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1657         dcbx_set.config.params.pfc.enabled = !!state;
1658
1659         ptt = qed_ptt_acquire(hwfn);
1660         if (!ptt)
1661                 return;
1662
1663         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1664
1665         qed_ptt_release(hwfn, ptt);
1666 }
1667
1668 static int qed_dcbnl_getapp(struct qed_dev *cdev, u8 idtype, u16 idval)
1669 {
1670         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1671         struct qed_dcbx_get *dcbx_info;
1672         struct qed_app_entry *entry;
1673         bool ethtype;
1674         u8 prio = 0;
1675         int i;
1676
1677         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1678         if (!dcbx_info)
1679                 return -EINVAL;
1680
1681         ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
1682         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
1683                 entry = &dcbx_info->operational.params.app_entry[i];
1684                 if ((entry->ethtype == ethtype) && (entry->proto_id == idval)) {
1685                         prio = entry->prio;
1686                         break;
1687                 }
1688         }
1689
1690         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
1691                 DP_ERR(cdev, "App entry (%d, %d) not found\n", idtype, idval);
1692                 kfree(dcbx_info);
1693                 return -EINVAL;
1694         }
1695
1696         kfree(dcbx_info);
1697
1698         return prio;
1699 }
1700
1701 static int qed_dcbnl_setapp(struct qed_dev *cdev,
1702                             u8 idtype, u16 idval, u8 pri_map)
1703 {
1704         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1705         struct qed_dcbx_set dcbx_set;
1706         struct qed_app_entry *entry;
1707         struct qed_ptt *ptt;
1708         bool ethtype;
1709         int rc, i;
1710
1711         memset(&dcbx_set, 0, sizeof(dcbx_set));
1712         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1713         if (rc)
1714                 return -EINVAL;
1715
1716         ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
1717         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
1718                 entry = &dcbx_set.config.params.app_entry[i];
1719                 if ((entry->ethtype == ethtype) && (entry->proto_id == idval))
1720                         break;
1721                 /* First empty slot */
1722                 if (!entry->proto_id) {
1723                         dcbx_set.config.params.num_app_entries++;
1724                         break;
1725                 }
1726         }
1727
1728         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
1729                 DP_ERR(cdev, "App table is full\n");
1730                 return -EBUSY;
1731         }
1732
1733         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
1734         dcbx_set.config.params.app_entry[i].ethtype = ethtype;
1735         dcbx_set.config.params.app_entry[i].proto_id = idval;
1736         dcbx_set.config.params.app_entry[i].prio = pri_map;
1737
1738         ptt = qed_ptt_acquire(hwfn);
1739         if (!ptt)
1740                 return -EBUSY;
1741
1742         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1743
1744         qed_ptt_release(hwfn, ptt);
1745
1746         return rc;
1747 }
1748
1749 static u8 qed_dcbnl_setdcbx(struct qed_dev *cdev, u8 mode)
1750 {
1751         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1752         struct qed_dcbx_set dcbx_set;
1753         struct qed_ptt *ptt;
1754         int rc;
1755
1756         DP_VERBOSE(hwfn, QED_MSG_DCB, "new mode = %x\n", mode);
1757
1758         if (!(mode & DCB_CAP_DCBX_VER_IEEE) && !(mode & DCB_CAP_DCBX_VER_CEE)) {
1759                 DP_INFO(hwfn, "Allowed mode is cee, ieee or both\n");
1760                 return 1;
1761         }
1762
1763         memset(&dcbx_set, 0, sizeof(dcbx_set));
1764         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1765         if (rc)
1766                 return 1;
1767
1768         dcbx_set.ver_num = 0;
1769         if (mode & DCB_CAP_DCBX_VER_CEE) {
1770                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1771                 dcbx_set.enabled = true;
1772         }
1773
1774         if (mode & DCB_CAP_DCBX_VER_IEEE) {
1775                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1776                 dcbx_set.enabled = true;
1777         }
1778
1779         ptt = qed_ptt_acquire(hwfn);
1780         if (!ptt)
1781                 return 1;
1782
1783         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1784
1785         qed_ptt_release(hwfn, ptt);
1786
1787         return 0;
1788 }
1789
1790 static u8 qed_dcbnl_getfeatcfg(struct qed_dev *cdev, int featid, u8 *flags)
1791 {
1792         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1793         struct qed_dcbx_get *dcbx_info;
1794
1795         DP_VERBOSE(hwfn, QED_MSG_DCB, "Feature id  = %d\n", featid);
1796         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1797         if (!dcbx_info)
1798                 return 1;
1799
1800         *flags = 0;
1801         switch (featid) {
1802         case DCB_FEATCFG_ATTR_PG:
1803                 if (dcbx_info->operational.params.ets_enabled)
1804                         *flags = DCB_FEATCFG_ENABLE;
1805                 else
1806                         *flags = DCB_FEATCFG_ERROR;
1807                 break;
1808         case DCB_FEATCFG_ATTR_PFC:
1809                 if (dcbx_info->operational.params.pfc.enabled)
1810                         *flags = DCB_FEATCFG_ENABLE;
1811                 else
1812                         *flags = DCB_FEATCFG_ERROR;
1813                 break;
1814         case DCB_FEATCFG_ATTR_APP:
1815                 if (dcbx_info->operational.params.app_valid)
1816                         *flags = DCB_FEATCFG_ENABLE;
1817                 else
1818                         *flags = DCB_FEATCFG_ERROR;
1819                 break;
1820         default:
1821                 DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
1822                 kfree(dcbx_info);
1823                 return 1;
1824         }
1825
1826         DP_VERBOSE(hwfn, QED_MSG_DCB, "flags = %d\n", *flags);
1827         kfree(dcbx_info);
1828
1829         return 0;
1830 }
1831
1832 static u8 qed_dcbnl_setfeatcfg(struct qed_dev *cdev, int featid, u8 flags)
1833 {
1834         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1835         struct qed_dcbx_set dcbx_set;
1836         bool enabled, willing;
1837         struct qed_ptt *ptt;
1838         int rc;
1839
1840         DP_VERBOSE(hwfn, QED_MSG_DCB, "featid = %d flags = %d\n",
1841                    featid, flags);
1842         memset(&dcbx_set, 0, sizeof(dcbx_set));
1843         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1844         if (rc)
1845                 return 1;
1846
1847         enabled = !!(flags & DCB_FEATCFG_ENABLE);
1848         willing = !!(flags & DCB_FEATCFG_WILLING);
1849         switch (featid) {
1850         case DCB_FEATCFG_ATTR_PG:
1851                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1852                 dcbx_set.config.params.ets_enabled = enabled;
1853                 dcbx_set.config.params.ets_willing = willing;
1854                 break;
1855         case DCB_FEATCFG_ATTR_PFC:
1856                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1857                 dcbx_set.config.params.pfc.enabled = enabled;
1858                 dcbx_set.config.params.pfc.willing = willing;
1859                 break;
1860         case DCB_FEATCFG_ATTR_APP:
1861                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
1862                 dcbx_set.config.params.app_willing = willing;
1863                 break;
1864         default:
1865                 DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
1866                 return 1;
1867         }
1868
1869         ptt = qed_ptt_acquire(hwfn);
1870         if (!ptt)
1871                 return 1;
1872
1873         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1874
1875         qed_ptt_release(hwfn, ptt);
1876
1877         return 0;
1878 }
1879
1880 static int qed_dcbnl_peer_getappinfo(struct qed_dev *cdev,
1881                                      struct dcb_peer_app_info *info,
1882                                      u16 *app_count)
1883 {
1884         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1885         struct qed_dcbx_get *dcbx_info;
1886
1887         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1888         if (!dcbx_info)
1889                 return -EINVAL;
1890
1891         info->willing = dcbx_info->remote.params.app_willing;
1892         info->error = dcbx_info->remote.params.app_error;
1893         *app_count = dcbx_info->remote.params.num_app_entries;
1894         kfree(dcbx_info);
1895
1896         return 0;
1897 }
1898
1899 static int qed_dcbnl_peer_getapptable(struct qed_dev *cdev,
1900                                       struct dcb_app *table)
1901 {
1902         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1903         struct qed_dcbx_get *dcbx_info;
1904         int i;
1905
1906         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1907         if (!dcbx_info)
1908                 return -EINVAL;
1909
1910         for (i = 0; i < dcbx_info->remote.params.num_app_entries; i++) {
1911                 if (dcbx_info->remote.params.app_entry[i].ethtype)
1912                         table[i].selector = DCB_APP_IDTYPE_ETHTYPE;
1913                 else
1914                         table[i].selector = DCB_APP_IDTYPE_PORTNUM;
1915                 table[i].priority = dcbx_info->remote.params.app_entry[i].prio;
1916                 table[i].protocol =
1917                     dcbx_info->remote.params.app_entry[i].proto_id;
1918         }
1919
1920         kfree(dcbx_info);
1921
1922         return 0;
1923 }
1924
1925 static int qed_dcbnl_cee_peer_getpfc(struct qed_dev *cdev, struct cee_pfc *pfc)
1926 {
1927         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1928         struct qed_dcbx_get *dcbx_info;
1929         int i;
1930
1931         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1932         if (!dcbx_info)
1933                 return -EINVAL;
1934
1935         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
1936                 if (dcbx_info->remote.params.pfc.prio[i])
1937                         pfc->pfc_en |= BIT(i);
1938
1939         pfc->tcs_supported = dcbx_info->remote.params.pfc.max_tc;
1940         DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d tcs_supported = %d\n",
1941                    pfc->pfc_en, pfc->tcs_supported);
1942         kfree(dcbx_info);
1943
1944         return 0;
1945 }
1946
1947 static int qed_dcbnl_cee_peer_getpg(struct qed_dev *cdev, struct cee_pg *pg)
1948 {
1949         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1950         struct qed_dcbx_get *dcbx_info;
1951         int i;
1952
1953         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1954         if (!dcbx_info)
1955                 return -EINVAL;
1956
1957         pg->willing = dcbx_info->remote.params.ets_willing;
1958         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
1959                 pg->pg_bw[i] = dcbx_info->remote.params.ets_tc_bw_tbl[i];
1960                 pg->prio_pg[i] = dcbx_info->remote.params.ets_pri_tc_tbl[i];
1961         }
1962
1963         DP_VERBOSE(hwfn, QED_MSG_DCB, "willing = %d", pg->willing);
1964         kfree(dcbx_info);
1965
1966         return 0;
1967 }
1968
1969 static int qed_dcbnl_get_ieee_pfc(struct qed_dev *cdev,
1970                                   struct ieee_pfc *pfc, bool remote)
1971 {
1972         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1973         struct qed_dcbx_params *params;
1974         struct qed_dcbx_get *dcbx_info;
1975         int rc, i;
1976
1977         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1978         if (!dcbx_info)
1979                 return -EINVAL;
1980
1981         if (!dcbx_info->operational.ieee) {
1982                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
1983                 return -EINVAL;
1984         }
1985
1986         if (remote) {
1987                 memset(dcbx_info, 0, sizeof(*dcbx_info));
1988                 rc = qed_dcbx_query_params(hwfn, dcbx_info,
1989                                            QED_DCBX_REMOTE_MIB);
1990                 if (rc) {
1991                         kfree(dcbx_info);
1992                         return -EINVAL;
1993                 }
1994
1995                 params = &dcbx_info->remote.params;
1996         } else {
1997                 params = &dcbx_info->operational.params;
1998         }
1999
2000         pfc->pfc_cap = params->pfc.max_tc;
2001         pfc->pfc_en = 0;
2002         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2003                 if (params->pfc.prio[i])
2004                         pfc->pfc_en |= BIT(i);
2005
2006         kfree(dcbx_info);
2007
2008         return 0;
2009 }
2010
2011 static int qed_dcbnl_ieee_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2012 {
2013         return qed_dcbnl_get_ieee_pfc(cdev, pfc, false);
2014 }
2015
2016 static int qed_dcbnl_ieee_setpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2017 {
2018         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2019         struct qed_dcbx_get *dcbx_info;
2020         struct qed_dcbx_set dcbx_set;
2021         struct qed_ptt *ptt;
2022         int rc, i;
2023
2024         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2025         if (!dcbx_info)
2026                 return -EINVAL;
2027
2028         if (!dcbx_info->operational.ieee) {
2029                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2030                 kfree(dcbx_info);
2031                 return -EINVAL;
2032         }
2033
2034         kfree(dcbx_info);
2035
2036         memset(&dcbx_set, 0, sizeof(dcbx_set));
2037         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2038         if (rc)
2039                 return -EINVAL;
2040
2041         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
2042         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2043                 dcbx_set.config.params.pfc.prio[i] = !!(pfc->pfc_en & BIT(i));
2044
2045         ptt = qed_ptt_acquire(hwfn);
2046         if (!ptt)
2047                 return -EINVAL;
2048
2049         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2050
2051         qed_ptt_release(hwfn, ptt);
2052
2053         return rc;
2054 }
2055
2056 static int qed_dcbnl_get_ieee_ets(struct qed_dev *cdev,
2057                                   struct ieee_ets *ets, bool remote)
2058 {
2059         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2060         struct qed_dcbx_get *dcbx_info;
2061         struct qed_dcbx_params *params;
2062         int rc;
2063
2064         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2065         if (!dcbx_info)
2066                 return -EINVAL;
2067
2068         if (!dcbx_info->operational.ieee) {
2069                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2070                 kfree(dcbx_info);
2071                 return -EINVAL;
2072         }
2073
2074         if (remote) {
2075                 memset(dcbx_info, 0, sizeof(*dcbx_info));
2076                 rc = qed_dcbx_query_params(hwfn, dcbx_info,
2077                                            QED_DCBX_REMOTE_MIB);
2078                 if (rc) {
2079                         kfree(dcbx_info);
2080                         return -EINVAL;
2081                 }
2082
2083                 params = &dcbx_info->remote.params;
2084         } else {
2085                 params = &dcbx_info->operational.params;
2086         }
2087
2088         ets->ets_cap = params->max_ets_tc;
2089         ets->willing = params->ets_willing;
2090         ets->cbs = params->ets_cbs;
2091         memcpy(ets->tc_tx_bw, params->ets_tc_bw_tbl, sizeof(ets->tc_tx_bw));
2092         memcpy(ets->tc_tsa, params->ets_tc_tsa_tbl, sizeof(ets->tc_tsa));
2093         memcpy(ets->prio_tc, params->ets_pri_tc_tbl, sizeof(ets->prio_tc));
2094         kfree(dcbx_info);
2095
2096         return 0;
2097 }
2098
2099 static int qed_dcbnl_ieee_getets(struct qed_dev *cdev, struct ieee_ets *ets)
2100 {
2101         return qed_dcbnl_get_ieee_ets(cdev, ets, false);
2102 }
2103
2104 static int qed_dcbnl_ieee_setets(struct qed_dev *cdev, struct ieee_ets *ets)
2105 {
2106         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2107         struct qed_dcbx_get *dcbx_info;
2108         struct qed_dcbx_set dcbx_set;
2109         struct qed_ptt *ptt;
2110         int rc;
2111
2112         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2113         if (!dcbx_info)
2114                 return -EINVAL;
2115
2116         if (!dcbx_info->operational.ieee) {
2117                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2118                 kfree(dcbx_info);
2119                 return -EINVAL;
2120         }
2121
2122         kfree(dcbx_info);
2123
2124         memset(&dcbx_set, 0, sizeof(dcbx_set));
2125         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2126         if (rc)
2127                 return -EINVAL;
2128
2129         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
2130         dcbx_set.config.params.max_ets_tc = ets->ets_cap;
2131         dcbx_set.config.params.ets_willing = ets->willing;
2132         dcbx_set.config.params.ets_cbs = ets->cbs;
2133         memcpy(dcbx_set.config.params.ets_tc_bw_tbl, ets->tc_tx_bw,
2134                sizeof(ets->tc_tx_bw));
2135         memcpy(dcbx_set.config.params.ets_tc_tsa_tbl, ets->tc_tsa,
2136                sizeof(ets->tc_tsa));
2137         memcpy(dcbx_set.config.params.ets_pri_tc_tbl, ets->prio_tc,
2138                sizeof(ets->prio_tc));
2139
2140         ptt = qed_ptt_acquire(hwfn);
2141         if (!ptt)
2142                 return -EINVAL;
2143
2144         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2145
2146         qed_ptt_release(hwfn, ptt);
2147
2148         return rc;
2149 }
2150
2151 int qed_dcbnl_ieee_peer_getets(struct qed_dev *cdev, struct ieee_ets *ets)
2152 {
2153         return qed_dcbnl_get_ieee_ets(cdev, ets, true);
2154 }
2155
2156 int qed_dcbnl_ieee_peer_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2157 {
2158         return qed_dcbnl_get_ieee_pfc(cdev, pfc, true);
2159 }
2160
2161 int qed_dcbnl_ieee_getapp(struct qed_dev *cdev, struct dcb_app *app)
2162 {
2163         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2164         struct qed_dcbx_get *dcbx_info;
2165         struct qed_app_entry *entry;
2166         bool ethtype;
2167         u8 prio = 0;
2168         int i;
2169
2170         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2171         if (!dcbx_info)
2172                 return -EINVAL;
2173
2174         if (!dcbx_info->operational.ieee) {
2175                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2176                 kfree(dcbx_info);
2177                 return -EINVAL;
2178         }
2179
2180         /* ieee defines the selector field value for ethertype to be 1 */
2181         ethtype = !!((app->selector - 1) == DCB_APP_IDTYPE_ETHTYPE);
2182         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
2183                 entry = &dcbx_info->operational.params.app_entry[i];
2184                 if ((entry->ethtype == ethtype) &&
2185                     (entry->proto_id == app->protocol)) {
2186                         prio = entry->prio;
2187                         break;
2188                 }
2189         }
2190
2191         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
2192                 DP_ERR(cdev, "App entry (%d, %d) not found\n", app->selector,
2193                        app->protocol);
2194                 kfree(dcbx_info);
2195                 return -EINVAL;
2196         }
2197
2198         app->priority = ffs(prio) - 1;
2199
2200         kfree(dcbx_info);
2201
2202         return 0;
2203 }
2204
2205 int qed_dcbnl_ieee_setapp(struct qed_dev *cdev, struct dcb_app *app)
2206 {
2207         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2208         struct qed_dcbx_get *dcbx_info;
2209         struct qed_dcbx_set dcbx_set;
2210         struct qed_app_entry *entry;
2211         struct qed_ptt *ptt;
2212         bool ethtype;
2213         int rc, i;
2214
2215         if (app->priority < 0 || app->priority >= QED_MAX_PFC_PRIORITIES) {
2216                 DP_INFO(hwfn, "Invalid priority %d\n", app->priority);
2217                 return -EINVAL;
2218         }
2219
2220         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2221         if (!dcbx_info)
2222                 return -EINVAL;
2223
2224         if (!dcbx_info->operational.ieee) {
2225                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2226                 kfree(dcbx_info);
2227                 return -EINVAL;
2228         }
2229
2230         kfree(dcbx_info);
2231
2232         memset(&dcbx_set, 0, sizeof(dcbx_set));
2233         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2234         if (rc)
2235                 return -EINVAL;
2236
2237         /* ieee defines the selector field value for ethertype to be 1 */
2238         ethtype = !!((app->selector - 1) == DCB_APP_IDTYPE_ETHTYPE);
2239         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
2240                 entry = &dcbx_set.config.params.app_entry[i];
2241                 if ((entry->ethtype == ethtype) &&
2242                     (entry->proto_id == app->protocol))
2243                         break;
2244                 /* First empty slot */
2245                 if (!entry->proto_id) {
2246                         dcbx_set.config.params.num_app_entries++;
2247                         break;
2248                 }
2249         }
2250
2251         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
2252                 DP_ERR(cdev, "App table is full\n");
2253                 return -EBUSY;
2254         }
2255
2256         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
2257         dcbx_set.config.params.app_entry[i].ethtype = ethtype;
2258         dcbx_set.config.params.app_entry[i].proto_id = app->protocol;
2259         dcbx_set.config.params.app_entry[i].prio = BIT(app->priority);
2260
2261         ptt = qed_ptt_acquire(hwfn);
2262         if (!ptt)
2263                 return -EBUSY;
2264
2265         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2266
2267         qed_ptt_release(hwfn, ptt);
2268
2269         return rc;
2270 }
2271
2272 const struct qed_eth_dcbnl_ops qed_dcbnl_ops_pass = {
2273         .getstate = qed_dcbnl_getstate,
2274         .setstate = qed_dcbnl_setstate,
2275         .getpgtccfgtx = qed_dcbnl_getpgtccfgtx,
2276         .getpgbwgcfgtx = qed_dcbnl_getpgbwgcfgtx,
2277         .getpgtccfgrx = qed_dcbnl_getpgtccfgrx,
2278         .getpgbwgcfgrx = qed_dcbnl_getpgbwgcfgrx,
2279         .getpfccfg = qed_dcbnl_getpfccfg,
2280         .setpfccfg = qed_dcbnl_setpfccfg,
2281         .getcap = qed_dcbnl_getcap,
2282         .getnumtcs = qed_dcbnl_getnumtcs,
2283         .getpfcstate = qed_dcbnl_getpfcstate,
2284         .getdcbx = qed_dcbnl_getdcbx,
2285         .setpgtccfgtx = qed_dcbnl_setpgtccfgtx,
2286         .setpgtccfgrx = qed_dcbnl_setpgtccfgrx,
2287         .setpgbwgcfgtx = qed_dcbnl_setpgbwgcfgtx,
2288         .setpgbwgcfgrx = qed_dcbnl_setpgbwgcfgrx,
2289         .setall = qed_dcbnl_setall,
2290         .setnumtcs = qed_dcbnl_setnumtcs,
2291         .setpfcstate = qed_dcbnl_setpfcstate,
2292         .setapp = qed_dcbnl_setapp,
2293         .setdcbx = qed_dcbnl_setdcbx,
2294         .setfeatcfg = qed_dcbnl_setfeatcfg,
2295         .getfeatcfg = qed_dcbnl_getfeatcfg,
2296         .getapp = qed_dcbnl_getapp,
2297         .peer_getappinfo = qed_dcbnl_peer_getappinfo,
2298         .peer_getapptable = qed_dcbnl_peer_getapptable,
2299         .cee_peer_getpfc = qed_dcbnl_cee_peer_getpfc,
2300         .cee_peer_getpg = qed_dcbnl_cee_peer_getpg,
2301         .ieee_getpfc = qed_dcbnl_ieee_getpfc,
2302         .ieee_setpfc = qed_dcbnl_ieee_setpfc,
2303         .ieee_getets = qed_dcbnl_ieee_getets,
2304         .ieee_setets = qed_dcbnl_ieee_setets,
2305         .ieee_peer_getpfc = qed_dcbnl_ieee_peer_getpfc,
2306         .ieee_peer_getets = qed_dcbnl_ieee_peer_getets,
2307         .ieee_getapp = qed_dcbnl_ieee_getapp,
2308         .ieee_setapp = qed_dcbnl_ieee_setapp,
2309 };
2310
2311 #endif