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                 rc = -ENOMEM;
 880
 881         return rc;
 882 }
 883
 884 void qed_dcbx_info_free(struct qed_hwfn *p_hwfn,
 885                         struct qed_dcbx_info *p_dcbx_info)
 886 {
 887         kfree(p_hwfn->p_dcbx_info);
 888 }
 889
 890 static void qed_dcbx_update_protocol_data(struct protocol_dcb_data *p_data,
 891                                           struct qed_dcbx_results *p_src,
 892                                           enum dcbx_protocol_type type)
 893 {
 894         p_data->dcb_enable_flag = p_src->arr[type].enable;
 895         p_data->dcb_priority = p_src->arr[type].priority;
 896         p_data->dcb_tc = p_src->arr[type].tc;
 897 }
 898
 899 /* Set pf update ramrod command params */
 900 void qed_dcbx_set_pf_update_params(struct qed_dcbx_results *p_src,
 901                                    struct pf_update_ramrod_data *p_dest)
 902 {
 903         struct protocol_dcb_data *p_dcb_data;
 904         bool update_flag = false;
 905
 906         p_dest->pf_id = p_src->pf_id;
 907
 908         update_flag = p_src->arr[DCBX_PROTOCOL_FCOE].update;
 909         p_dest->update_fcoe_dcb_data_flag = update_flag;
 910
 911         update_flag = p_src->arr[DCBX_PROTOCOL_ROCE].update;
 912         p_dest->update_roce_dcb_data_flag = update_flag;
 913         update_flag = p_src->arr[DCBX_PROTOCOL_ROCE_V2].update;
 914         p_dest->update_roce_dcb_data_flag = update_flag;
 915
 916         update_flag = p_src->arr[DCBX_PROTOCOL_ISCSI].update;
 917         p_dest->update_iscsi_dcb_data_flag = update_flag;
 918         update_flag = p_src->arr[DCBX_PROTOCOL_ETH].update;
 919         p_dest->update_eth_dcb_data_flag = update_flag;
 920
 921         p_dcb_data = &p_dest->fcoe_dcb_data;
 922         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_FCOE);
 923         p_dcb_data = &p_dest->roce_dcb_data;
 924
 925         if (p_src->arr[DCBX_PROTOCOL_ROCE].update)
 926                 qed_dcbx_update_protocol_data(p_dcb_data, p_src,
 927                                               DCBX_PROTOCOL_ROCE);
 928         if (p_src->arr[DCBX_PROTOCOL_ROCE_V2].update)
 929                 qed_dcbx_update_protocol_data(p_dcb_data, p_src,
 930                                               DCBX_PROTOCOL_ROCE_V2);
 931
 932         p_dcb_data = &p_dest->iscsi_dcb_data;
 933         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ISCSI);
 934         p_dcb_data = &p_dest->eth_dcb_data;
 935         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ETH);
 936 }
 937
 938 #ifdef CONFIG_DCB
 939 static int qed_dcbx_query_params(struct qed_hwfn *p_hwfn,
 940                                  struct qed_dcbx_get *p_get,
 941                                  enum qed_mib_read_type type)
 942 {
 943         struct qed_ptt *p_ptt;
 944         int rc;
 945
 946         if (IS_VF(p_hwfn->cdev))
 947                 return -EINVAL;
 948
 949         p_ptt = qed_ptt_acquire(p_hwfn);
 950         if (!p_ptt)
 951                 return -EBUSY;
 952
 953         rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type);
 954         if (rc)
 955                 goto out;
 956
 957         rc = qed_dcbx_get_params(p_hwfn, p_ptt, p_get, type);
 958
 959 out:
 960         qed_ptt_release(p_hwfn, p_ptt);
 961         return rc;
 962 }
 963
 964 static void
 965 qed_dcbx_set_pfc_data(struct qed_hwfn *p_hwfn,
 966                       u32 *pfc, struct qed_dcbx_params *p_params)
 967 {
 968         u8 pfc_map = 0;
 969         int i;
 970
 971         if (p_params->pfc.willing)
 972                 *pfc |= DCBX_PFC_WILLING_MASK;
 973         else
 974                 *pfc &= ~DCBX_PFC_WILLING_MASK;
 975
 976         if (p_params->pfc.enabled)
 977                 *pfc |= DCBX_PFC_ENABLED_MASK;
 978         else
 979                 *pfc &= ~DCBX_PFC_ENABLED_MASK;
 980
 981         *pfc &= ~DCBX_PFC_CAPS_MASK;
 982         *pfc |= (u32)p_params->pfc.max_tc << DCBX_PFC_CAPS_SHIFT;
 983
 984         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
 985                 if (p_params->pfc.prio[i])
 986                         pfc_map |= BIT(i);
 987
 988         *pfc &= ~DCBX_PFC_PRI_EN_BITMAP_MASK;
 989         *pfc |= (pfc_map << DCBX_PFC_PRI_EN_BITMAP_SHIFT);
 990
 991         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "pfc = 0x%x\n", *pfc);
 992 }
 993
 994 static void
 995 qed_dcbx_set_ets_data(struct qed_hwfn *p_hwfn,
 996                       struct dcbx_ets_feature *p_ets,
 997                       struct qed_dcbx_params *p_params)
 998 {
 999         u8 *bw_map, *tsa_map;
1000         u32 val;
1001         int i;
1002
1003         if (p_params->ets_willing)
1004                 p_ets->flags |= DCBX_ETS_WILLING_MASK;
1005         else
1006                 p_ets->flags &= ~DCBX_ETS_WILLING_MASK;
1007
1008         if (p_params->ets_cbs)
1009                 p_ets->flags |= DCBX_ETS_CBS_MASK;
1010         else
1011                 p_ets->flags &= ~DCBX_ETS_CBS_MASK;
1012
1013         if (p_params->ets_enabled)
1014                 p_ets->flags |= DCBX_ETS_ENABLED_MASK;
1015         else
1016                 p_ets->flags &= ~DCBX_ETS_ENABLED_MASK;
1017
1018         p_ets->flags &= ~DCBX_ETS_MAX_TCS_MASK;
1019         p_ets->flags |= (u32)p_params->max_ets_tc << DCBX_ETS_MAX_TCS_SHIFT;
1020
1021         bw_map = (u8 *)&p_ets->tc_bw_tbl[0];
1022         tsa_map = (u8 *)&p_ets->tc_tsa_tbl[0];
1023         p_ets->pri_tc_tbl[0] = 0;
1024         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
1025                 bw_map[i] = p_params->ets_tc_bw_tbl[i];
1026                 tsa_map[i] = p_params->ets_tc_tsa_tbl[i];
1027                 /* Copy the priority value to the corresponding 4 bits in the
1028                  * traffic class table.
1029                  */
1030                 val = (((u32)p_params->ets_pri_tc_tbl[i]) << ((7 - i) * 4));
1031                 p_ets->pri_tc_tbl[0] |= val;
1032         }
1033         for (i = 0; i < 2; i++) {
1034                 p_ets->tc_bw_tbl[i] = cpu_to_be32(p_ets->tc_bw_tbl[i]);
1035                 p_ets->tc_tsa_tbl[i] = cpu_to_be32(p_ets->tc_tsa_tbl[i]);
1036         }
1037 }
1038
1039 static void
1040 qed_dcbx_set_app_data(struct qed_hwfn *p_hwfn,
1041                       struct dcbx_app_priority_feature *p_app,
1042                       struct qed_dcbx_params *p_params, bool ieee)
1043 {
1044         u32 *entry;
1045         int i;
1046
1047         if (p_params->app_willing)
1048                 p_app->flags |= DCBX_APP_WILLING_MASK;
1049         else
1050                 p_app->flags &= ~DCBX_APP_WILLING_MASK;
1051
1052         if (p_params->app_valid)
1053                 p_app->flags |= DCBX_APP_ENABLED_MASK;
1054         else
1055                 p_app->flags &= ~DCBX_APP_ENABLED_MASK;
1056
1057         p_app->flags &= ~DCBX_APP_NUM_ENTRIES_MASK;
1058         p_app->flags |= (u32)p_params->num_app_entries <<
1059             DCBX_APP_NUM_ENTRIES_SHIFT;
1060
1061         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
1062                 entry = &p_app->app_pri_tbl[i].entry;
1063                 *entry = 0;
1064                 if (ieee) {
1065                         *entry &= ~(DCBX_APP_SF_IEEE_MASK | DCBX_APP_SF_MASK);
1066                         switch (p_params->app_entry[i].sf_ieee) {
1067                         case QED_DCBX_SF_IEEE_ETHTYPE:
1068                                 *entry |= ((u32)DCBX_APP_SF_IEEE_ETHTYPE <<
1069                                            DCBX_APP_SF_IEEE_SHIFT);
1070                                 *entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
1071                                            DCBX_APP_SF_SHIFT);
1072                                 break;
1073                         case QED_DCBX_SF_IEEE_TCP_PORT:
1074                                 *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_PORT <<
1075                                            DCBX_APP_SF_IEEE_SHIFT);
1076                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1077                                            DCBX_APP_SF_SHIFT);
1078                                 break;
1079                         case QED_DCBX_SF_IEEE_UDP_PORT:
1080                                 *entry |= ((u32)DCBX_APP_SF_IEEE_UDP_PORT <<
1081                                            DCBX_APP_SF_IEEE_SHIFT);
1082                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1083                                            DCBX_APP_SF_SHIFT);
1084                                 break;
1085                         case QED_DCBX_SF_IEEE_TCP_UDP_PORT:
1086                                 *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_UDP_PORT <<
1087                                            DCBX_APP_SF_IEEE_SHIFT);
1088                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1089                                            DCBX_APP_SF_SHIFT);
1090                                 break;
1091                         }
1092                 } else {
1093                         *entry &= ~DCBX_APP_SF_MASK;
1094                         if (p_params->app_entry[i].ethtype)
1095                                 *entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
1096                                            DCBX_APP_SF_SHIFT);
1097                         else
1098                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1099                                            DCBX_APP_SF_SHIFT);
1100                 }
1101
1102                 *entry &= ~DCBX_APP_PROTOCOL_ID_MASK;
1103                 *entry |= ((u32)p_params->app_entry[i].proto_id <<
1104                            DCBX_APP_PROTOCOL_ID_SHIFT);
1105                 *entry &= ~DCBX_APP_PRI_MAP_MASK;
1106                 *entry |= ((u32)(p_params->app_entry[i].prio) <<
1107                            DCBX_APP_PRI_MAP_SHIFT);
1108         }
1109 }
1110
1111 static void
1112 qed_dcbx_set_local_params(struct qed_hwfn *p_hwfn,
1113                           struct dcbx_local_params *local_admin,
1114                           struct qed_dcbx_set *params)
1115 {
1116         bool ieee = false;
1117
1118         local_admin->flags = 0;
1119         memcpy(&local_admin->features,
1120                &p_hwfn->p_dcbx_info->operational.features,
1121                sizeof(local_admin->features));
1122
1123         if (params->enabled) {
1124                 local_admin->config = params->ver_num;
1125                 ieee = !!(params->ver_num & DCBX_CONFIG_VERSION_IEEE);
1126         } else {
1127                 local_admin->config = DCBX_CONFIG_VERSION_DISABLED;
1128         }
1129
1130         if (params->override_flags & QED_DCBX_OVERRIDE_PFC_CFG)
1131                 qed_dcbx_set_pfc_data(p_hwfn, &local_admin->features.pfc,
1132                                       &params->config.params);
1133
1134         if (params->override_flags & QED_DCBX_OVERRIDE_ETS_CFG)
1135                 qed_dcbx_set_ets_data(p_hwfn, &local_admin->features.ets,
1136                                       &params->config.params);
1137
1138         if (params->override_flags & QED_DCBX_OVERRIDE_APP_CFG)
1139                 qed_dcbx_set_app_data(p_hwfn, &local_admin->features.app,
1140                                       &params->config.params, ieee);
1141 }
1142
1143 int qed_dcbx_config_params(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
1144                            struct qed_dcbx_set *params, bool hw_commit)
1145 {
1146         struct dcbx_local_params local_admin;
1147         struct qed_dcbx_mib_meta_data data;
1148         u32 resp = 0, param = 0;
1149         int rc = 0;
1150
1151         if (!hw_commit) {
1152                 memcpy(&p_hwfn->p_dcbx_info->set, params,
1153                        sizeof(struct qed_dcbx_set));
1154                 return 0;
1155         }
1156
1157         /* clear set-parmas cache */
1158         memset(&p_hwfn->p_dcbx_info->set, 0, sizeof(p_hwfn->p_dcbx_info->set));
1159
1160         memset(&local_admin, 0, sizeof(local_admin));
1161         qed_dcbx_set_local_params(p_hwfn, &local_admin, params);
1162
1163         data.addr = p_hwfn->mcp_info->port_addr +
1164             offsetof(struct public_port, local_admin_dcbx_mib);
1165         data.local_admin = &local_admin;
1166         data.size = sizeof(struct dcbx_local_params);
1167         qed_memcpy_to(p_hwfn, p_ptt, data.addr, data.local_admin, data.size);
1168
1169         rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_SET_DCBX,
1170                          1 << DRV_MB_PARAM_LLDP_SEND_SHIFT, &resp, &param);
1171         if (rc)
1172                 DP_NOTICE(p_hwfn, "Failed to send DCBX update request\n");
1173
1174         return rc;
1175 }
1176
1177 int qed_dcbx_get_config_params(struct qed_hwfn *p_hwfn,
1178                                struct qed_dcbx_set *params)
1179 {
1180         struct qed_dcbx_get *dcbx_info;
1181         int rc;
1182
1183         if (p_hwfn->p_dcbx_info->set.config.valid) {
1184                 memcpy(params, &p_hwfn->p_dcbx_info->set,
1185                        sizeof(struct qed_dcbx_set));
1186                 return 0;
1187         }
1188
1189         dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_KERNEL);
1190         if (!dcbx_info)
1191                 return -ENOMEM;
1192
1193         rc = qed_dcbx_query_params(p_hwfn, dcbx_info, QED_DCBX_OPERATIONAL_MIB);
1194         if (rc) {
1195                 kfree(dcbx_info);
1196                 return rc;
1197         }
1198
1199         p_hwfn->p_dcbx_info->set.override_flags = 0;
1200         p_hwfn->p_dcbx_info->set.ver_num = DCBX_CONFIG_VERSION_DISABLED;
1201         if (dcbx_info->operational.cee)
1202                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1203         if (dcbx_info->operational.ieee)
1204                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1205
1206         p_hwfn->p_dcbx_info->set.enabled = dcbx_info->operational.enabled;
1207         memcpy(&p_hwfn->p_dcbx_info->set.config.params,
1208                &dcbx_info->operational.params,
1209                sizeof(struct qed_dcbx_admin_params));
1210         p_hwfn->p_dcbx_info->set.config.valid = true;
1211
1212         memcpy(params, &p_hwfn->p_dcbx_info->set, sizeof(struct qed_dcbx_set));
1213
1214         kfree(dcbx_info);
1215
1216         return 0;
1217 }
1218
1219 static struct qed_dcbx_get *qed_dcbnl_get_dcbx(struct qed_hwfn *hwfn,
1220                                                enum qed_mib_read_type type)
1221 {
1222         struct qed_dcbx_get *dcbx_info;
1223
1224         dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_KERNEL);
1225         if (!dcbx_info)
1226                 return NULL;
1227
1228         if (qed_dcbx_query_params(hwfn, dcbx_info, type)) {
1229                 kfree(dcbx_info);
1230                 return NULL;
1231         }
1232
1233         if ((type == QED_DCBX_OPERATIONAL_MIB) &&
1234             !dcbx_info->operational.enabled) {
1235                 DP_INFO(hwfn, "DCBX is not enabled/operational\n");
1236                 kfree(dcbx_info);
1237                 return NULL;
1238         }
1239
1240         return dcbx_info;
1241 }
1242
1243 static u8 qed_dcbnl_getstate(struct qed_dev *cdev)
1244 {
1245         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1246         struct qed_dcbx_get *dcbx_info;
1247         bool enabled;
1248
1249         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1250         if (!dcbx_info)
1251                 return 0;
1252
1253         enabled = dcbx_info->operational.enabled;
1254         DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", enabled);
1255         kfree(dcbx_info);
1256
1257         return enabled;
1258 }
1259
1260 static u8 qed_dcbnl_setstate(struct qed_dev *cdev, u8 state)
1261 {
1262         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1263         struct qed_dcbx_set dcbx_set;
1264         struct qed_ptt *ptt;
1265         int rc;
1266
1267         DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", state);
1268
1269         memset(&dcbx_set, 0, sizeof(dcbx_set));
1270         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1271         if (rc)
1272                 return 1;
1273
1274         dcbx_set.enabled = !!state;
1275
1276         ptt = qed_ptt_acquire(hwfn);
1277         if (!ptt)
1278                 return 1;
1279
1280         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1281
1282         qed_ptt_release(hwfn, ptt);
1283
1284         return rc ? 1 : 0;
1285 }
1286
1287 static void qed_dcbnl_getpgtccfgtx(struct qed_dev *cdev, int tc, u8 *prio_type,
1288                                    u8 *pgid, u8 *bw_pct, u8 *up_map)
1289 {
1290         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1291         struct qed_dcbx_get *dcbx_info;
1292
1293         DP_VERBOSE(hwfn, QED_MSG_DCB, "tc = %d\n", tc);
1294         *prio_type = *pgid = *bw_pct = *up_map = 0;
1295         if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
1296                 DP_INFO(hwfn, "Invalid tc %d\n", tc);
1297                 return;
1298         }
1299
1300         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1301         if (!dcbx_info)
1302                 return;
1303
1304         *pgid = dcbx_info->operational.params.ets_pri_tc_tbl[tc];
1305         kfree(dcbx_info);
1306 }
1307
1308 static void qed_dcbnl_getpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 *bw_pct)
1309 {
1310         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1311         struct qed_dcbx_get *dcbx_info;
1312
1313         *bw_pct = 0;
1314         DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d\n", pgid);
1315         if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
1316                 DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
1317                 return;
1318         }
1319
1320         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1321         if (!dcbx_info)
1322                 return;
1323
1324         *bw_pct = dcbx_info->operational.params.ets_tc_bw_tbl[pgid];
1325         DP_VERBOSE(hwfn, QED_MSG_DCB, "bw_pct = %d\n", *bw_pct);
1326         kfree(dcbx_info);
1327 }
1328
1329 static void qed_dcbnl_getpgtccfgrx(struct qed_dev *cdev, int tc, u8 *prio,
1330                                    u8 *bwg_id, u8 *bw_pct, u8 *up_map)
1331 {
1332         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1333         *prio = *bwg_id = *bw_pct = *up_map = 0;
1334 }
1335
1336 static void qed_dcbnl_getpgbwgcfgrx(struct qed_dev *cdev,
1337                                     int bwg_id, u8 *bw_pct)
1338 {
1339         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1340         *bw_pct = 0;
1341 }
1342
1343 static void qed_dcbnl_getpfccfg(struct qed_dev *cdev,
1344                                 int priority, u8 *setting)
1345 {
1346         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1347         struct qed_dcbx_get *dcbx_info;
1348
1349         DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d\n", priority);
1350         if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
1351                 DP_INFO(hwfn, "Invalid priority %d\n", priority);
1352                 return;
1353         }
1354
1355         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1356         if (!dcbx_info)
1357                 return;
1358
1359         *setting = dcbx_info->operational.params.pfc.prio[priority];
1360         DP_VERBOSE(hwfn, QED_MSG_DCB, "setting = %d\n", *setting);
1361         kfree(dcbx_info);
1362 }
1363
1364 static void qed_dcbnl_setpfccfg(struct qed_dev *cdev, int priority, u8 setting)
1365 {
1366         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1367         struct qed_dcbx_set dcbx_set;
1368         struct qed_ptt *ptt;
1369         int rc;
1370
1371         DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d setting = %d\n",
1372                    priority, setting);
1373         if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
1374                 DP_INFO(hwfn, "Invalid priority %d\n", priority);
1375                 return;
1376         }
1377
1378         memset(&dcbx_set, 0, sizeof(dcbx_set));
1379         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1380         if (rc)
1381                 return;
1382
1383         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1384         dcbx_set.config.params.pfc.prio[priority] = !!setting;
1385
1386         ptt = qed_ptt_acquire(hwfn);
1387         if (!ptt)
1388                 return;
1389
1390         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1391
1392         qed_ptt_release(hwfn, ptt);
1393 }
1394
1395 static u8 qed_dcbnl_getcap(struct qed_dev *cdev, int capid, u8 *cap)
1396 {
1397         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1398         struct qed_dcbx_get *dcbx_info;
1399         int rc = 0;
1400
1401         DP_VERBOSE(hwfn, QED_MSG_DCB, "capid = %d\n", capid);
1402         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1403         if (!dcbx_info)
1404                 return 1;
1405
1406         switch (capid) {
1407         case DCB_CAP_ATTR_PG:
1408         case DCB_CAP_ATTR_PFC:
1409         case DCB_CAP_ATTR_UP2TC:
1410         case DCB_CAP_ATTR_GSP:
1411                 *cap = true;
1412                 break;
1413         case DCB_CAP_ATTR_PG_TCS:
1414         case DCB_CAP_ATTR_PFC_TCS:
1415                 *cap = 0x80;
1416                 break;
1417         case DCB_CAP_ATTR_DCBX:
1418                 *cap = (DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_CEE |
1419                         DCB_CAP_DCBX_VER_IEEE);
1420                 break;
1421         default:
1422                 *cap = false;
1423                 rc = 1;
1424         }
1425
1426         DP_VERBOSE(hwfn, QED_MSG_DCB, "id = %d caps = %d\n", capid, *cap);
1427         kfree(dcbx_info);
1428
1429         return rc;
1430 }
1431
1432 static int qed_dcbnl_getnumtcs(struct qed_dev *cdev, int tcid, u8 *num)
1433 {
1434         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1435         struct qed_dcbx_get *dcbx_info;
1436         int rc = 0;
1437
1438         DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d\n", tcid);
1439         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1440         if (!dcbx_info)
1441                 return -EINVAL;
1442
1443         switch (tcid) {
1444         case DCB_NUMTCS_ATTR_PG:
1445                 *num = dcbx_info->operational.params.max_ets_tc;
1446                 break;
1447         case DCB_NUMTCS_ATTR_PFC:
1448                 *num = dcbx_info->operational.params.pfc.max_tc;
1449                 break;
1450         default:
1451                 rc = -EINVAL;
1452         }
1453
1454         kfree(dcbx_info);
1455         DP_VERBOSE(hwfn, QED_MSG_DCB, "numtcs = %d\n", *num);
1456
1457         return rc;
1458 }
1459
1460 static u8 qed_dcbnl_getpfcstate(struct qed_dev *cdev)
1461 {
1462         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1463         struct qed_dcbx_get *dcbx_info;
1464         bool enabled;
1465
1466         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1467         if (!dcbx_info)
1468                 return 0;
1469
1470         enabled = dcbx_info->operational.params.pfc.enabled;
1471         DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d\n", enabled);
1472         kfree(dcbx_info);
1473
1474         return enabled;
1475 }
1476
1477 static u8 qed_dcbnl_getdcbx(struct qed_dev *cdev)
1478 {
1479         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1480         struct qed_dcbx_get *dcbx_info;
1481         u8 mode = 0;
1482
1483         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1484         if (!dcbx_info)
1485                 return 0;
1486
1487         if (dcbx_info->operational.enabled)
1488                 mode |= DCB_CAP_DCBX_LLD_MANAGED;
1489         if (dcbx_info->operational.ieee)
1490                 mode |= DCB_CAP_DCBX_VER_IEEE;
1491         if (dcbx_info->operational.cee)
1492                 mode |= DCB_CAP_DCBX_VER_CEE;
1493
1494         DP_VERBOSE(hwfn, QED_MSG_DCB, "dcb mode = %d\n", mode);
1495         kfree(dcbx_info);
1496
1497         return mode;
1498 }
1499
1500 static void qed_dcbnl_setpgtccfgtx(struct qed_dev *cdev,
1501                                    int tc,
1502                                    u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
1503 {
1504         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1505         struct qed_dcbx_set dcbx_set;
1506         struct qed_ptt *ptt;
1507         int rc;
1508
1509         DP_VERBOSE(hwfn, QED_MSG_DCB,
1510                    "tc = %d pri_type = %d pgid = %d bw_pct = %d up_map = %d\n",
1511                    tc, pri_type, pgid, bw_pct, up_map);
1512
1513         if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
1514                 DP_INFO(hwfn, "Invalid tc %d\n", tc);
1515                 return;
1516         }
1517
1518         memset(&dcbx_set, 0, sizeof(dcbx_set));
1519         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1520         if (rc)
1521                 return;
1522
1523         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1524         dcbx_set.config.params.ets_pri_tc_tbl[tc] = pgid;
1525
1526         ptt = qed_ptt_acquire(hwfn);
1527         if (!ptt)
1528                 return;
1529
1530         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1531
1532         qed_ptt_release(hwfn, ptt);
1533 }
1534
1535 static void qed_dcbnl_setpgtccfgrx(struct qed_dev *cdev, int prio,
1536                                    u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
1537 {
1538         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1539 }
1540
1541 static void qed_dcbnl_setpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 bw_pct)
1542 {
1543         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1544         struct qed_dcbx_set dcbx_set;
1545         struct qed_ptt *ptt;
1546         int rc;
1547
1548         DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d bw_pct = %d\n", pgid, bw_pct);
1549         if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
1550                 DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
1551                 return;
1552         }
1553
1554         memset(&dcbx_set, 0, sizeof(dcbx_set));
1555         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1556         if (rc)
1557                 return;
1558
1559         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1560         dcbx_set.config.params.ets_tc_bw_tbl[pgid] = bw_pct;
1561
1562         ptt = qed_ptt_acquire(hwfn);
1563         if (!ptt)
1564                 return;
1565
1566         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1567
1568         qed_ptt_release(hwfn, ptt);
1569 }
1570
1571 static void qed_dcbnl_setpgbwgcfgrx(struct qed_dev *cdev, int pgid, u8 bw_pct)
1572 {
1573         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1574 }
1575
1576 static u8 qed_dcbnl_setall(struct qed_dev *cdev)
1577 {
1578         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1579         struct qed_dcbx_set dcbx_set;
1580         struct qed_ptt *ptt;
1581         int rc;
1582
1583         memset(&dcbx_set, 0, sizeof(dcbx_set));
1584         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1585         if (rc)
1586                 return 1;
1587
1588         ptt = qed_ptt_acquire(hwfn);
1589         if (!ptt)
1590                 return 1;
1591
1592         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 1);
1593
1594         qed_ptt_release(hwfn, ptt);
1595
1596         return rc;
1597 }
1598
1599 static int qed_dcbnl_setnumtcs(struct qed_dev *cdev, int tcid, u8 num)
1600 {
1601         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1602         struct qed_dcbx_set dcbx_set;
1603         struct qed_ptt *ptt;
1604         int rc;
1605
1606         DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d num = %d\n", tcid, num);
1607         memset(&dcbx_set, 0, sizeof(dcbx_set));
1608         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1609         if (rc)
1610                 return 1;
1611
1612         switch (tcid) {
1613         case DCB_NUMTCS_ATTR_PG:
1614                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1615                 dcbx_set.config.params.max_ets_tc = num;
1616                 break;
1617         case DCB_NUMTCS_ATTR_PFC:
1618                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1619                 dcbx_set.config.params.pfc.max_tc = num;
1620                 break;
1621         default:
1622                 DP_INFO(hwfn, "Invalid tcid %d\n", tcid);
1623                 return -EINVAL;
1624         }
1625
1626         ptt = qed_ptt_acquire(hwfn);
1627         if (!ptt)
1628                 return -EINVAL;
1629
1630         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1631
1632         qed_ptt_release(hwfn, ptt);
1633
1634         return 0;
1635 }
1636
1637 static void qed_dcbnl_setpfcstate(struct qed_dev *cdev, u8 state)
1638 {
1639         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1640         struct qed_dcbx_set dcbx_set;
1641         struct qed_ptt *ptt;
1642         int rc;
1643
1644         DP_VERBOSE(hwfn, QED_MSG_DCB, "new state = %d\n", state);
1645
1646         memset(&dcbx_set, 0, sizeof(dcbx_set));
1647         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1648         if (rc)
1649                 return;
1650
1651         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1652         dcbx_set.config.params.pfc.enabled = !!state;
1653
1654         ptt = qed_ptt_acquire(hwfn);
1655         if (!ptt)
1656                 return;
1657
1658         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1659
1660         qed_ptt_release(hwfn, ptt);
1661 }
1662
1663 static int qed_dcbnl_getapp(struct qed_dev *cdev, u8 idtype, u16 idval)
1664 {
1665         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1666         struct qed_dcbx_get *dcbx_info;
1667         struct qed_app_entry *entry;
1668         bool ethtype;
1669         u8 prio = 0;
1670         int i;
1671
1672         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1673         if (!dcbx_info)
1674                 return -EINVAL;
1675
1676         ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
1677         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
1678                 entry = &dcbx_info->operational.params.app_entry[i];
1679                 if ((entry->ethtype == ethtype) && (entry->proto_id == idval)) {
1680                         prio = entry->prio;
1681                         break;
1682                 }
1683         }
1684
1685         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
1686                 DP_ERR(cdev, "App entry (%d, %d) not found\n", idtype, idval);
1687                 kfree(dcbx_info);
1688                 return -EINVAL;
1689         }
1690
1691         kfree(dcbx_info);
1692
1693         return prio;
1694 }
1695
1696 static int qed_dcbnl_setapp(struct qed_dev *cdev,
1697                             u8 idtype, u16 idval, u8 pri_map)
1698 {
1699         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1700         struct qed_dcbx_set dcbx_set;
1701         struct qed_app_entry *entry;
1702         struct qed_ptt *ptt;
1703         bool ethtype;
1704         int rc, i;
1705
1706         memset(&dcbx_set, 0, sizeof(dcbx_set));
1707         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1708         if (rc)
1709                 return -EINVAL;
1710
1711         ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
1712         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
1713                 entry = &dcbx_set.config.params.app_entry[i];
1714                 if ((entry->ethtype == ethtype) && (entry->proto_id == idval))
1715                         break;
1716                 /* First empty slot */
1717                 if (!entry->proto_id) {
1718                         dcbx_set.config.params.num_app_entries++;
1719                         break;
1720                 }
1721         }
1722
1723         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
1724                 DP_ERR(cdev, "App table is full\n");
1725                 return -EBUSY;
1726         }
1727
1728         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
1729         dcbx_set.config.params.app_entry[i].ethtype = ethtype;
1730         dcbx_set.config.params.app_entry[i].proto_id = idval;
1731         dcbx_set.config.params.app_entry[i].prio = pri_map;
1732
1733         ptt = qed_ptt_acquire(hwfn);
1734         if (!ptt)
1735                 return -EBUSY;
1736
1737         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1738
1739         qed_ptt_release(hwfn, ptt);
1740
1741         return rc;
1742 }
1743
1744 static u8 qed_dcbnl_setdcbx(struct qed_dev *cdev, u8 mode)
1745 {
1746         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1747         struct qed_dcbx_set dcbx_set;
1748         struct qed_ptt *ptt;
1749         int rc;
1750
1751         DP_VERBOSE(hwfn, QED_MSG_DCB, "new mode = %x\n", mode);
1752
1753         if (!(mode & DCB_CAP_DCBX_VER_IEEE) && !(mode & DCB_CAP_DCBX_VER_CEE)) {
1754                 DP_INFO(hwfn, "Allowed mode is cee, ieee or both\n");
1755                 return 1;
1756         }
1757
1758         memset(&dcbx_set, 0, sizeof(dcbx_set));
1759         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1760         if (rc)
1761                 return 1;
1762
1763         dcbx_set.ver_num = 0;
1764         if (mode & DCB_CAP_DCBX_VER_CEE) {
1765                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1766                 dcbx_set.enabled = true;
1767         }
1768
1769         if (mode & DCB_CAP_DCBX_VER_IEEE) {
1770                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1771                 dcbx_set.enabled = true;
1772         }
1773
1774         ptt = qed_ptt_acquire(hwfn);
1775         if (!ptt)
1776                 return 1;
1777
1778         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1779
1780         qed_ptt_release(hwfn, ptt);
1781
1782         return 0;
1783 }
1784
1785 static u8 qed_dcbnl_getfeatcfg(struct qed_dev *cdev, int featid, u8 *flags)
1786 {
1787         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1788         struct qed_dcbx_get *dcbx_info;
1789
1790         DP_VERBOSE(hwfn, QED_MSG_DCB, "Feature id  = %d\n", featid);
1791         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1792         if (!dcbx_info)
1793                 return 1;
1794
1795         *flags = 0;
1796         switch (featid) {
1797         case DCB_FEATCFG_ATTR_PG:
1798                 if (dcbx_info->operational.params.ets_enabled)
1799                         *flags = DCB_FEATCFG_ENABLE;
1800                 else
1801                         *flags = DCB_FEATCFG_ERROR;
1802                 break;
1803         case DCB_FEATCFG_ATTR_PFC:
1804                 if (dcbx_info->operational.params.pfc.enabled)
1805                         *flags = DCB_FEATCFG_ENABLE;
1806                 else
1807                         *flags = DCB_FEATCFG_ERROR;
1808                 break;
1809         case DCB_FEATCFG_ATTR_APP:
1810                 if (dcbx_info->operational.params.app_valid)
1811                         *flags = DCB_FEATCFG_ENABLE;
1812                 else
1813                         *flags = DCB_FEATCFG_ERROR;
1814                 break;
1815         default:
1816                 DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
1817                 kfree(dcbx_info);
1818                 return 1;
1819         }
1820
1821         DP_VERBOSE(hwfn, QED_MSG_DCB, "flags = %d\n", *flags);
1822         kfree(dcbx_info);
1823
1824         return 0;
1825 }
1826
1827 static u8 qed_dcbnl_setfeatcfg(struct qed_dev *cdev, int featid, u8 flags)
1828 {
1829         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1830         struct qed_dcbx_set dcbx_set;
1831         bool enabled, willing;
1832         struct qed_ptt *ptt;
1833         int rc;
1834
1835         DP_VERBOSE(hwfn, QED_MSG_DCB, "featid = %d flags = %d\n",
1836                    featid, flags);
1837         memset(&dcbx_set, 0, sizeof(dcbx_set));
1838         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1839         if (rc)
1840                 return 1;
1841
1842         enabled = !!(flags & DCB_FEATCFG_ENABLE);
1843         willing = !!(flags & DCB_FEATCFG_WILLING);
1844         switch (featid) {
1845         case DCB_FEATCFG_ATTR_PG:
1846                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1847                 dcbx_set.config.params.ets_enabled = enabled;
1848                 dcbx_set.config.params.ets_willing = willing;
1849                 break;
1850         case DCB_FEATCFG_ATTR_PFC:
1851                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1852                 dcbx_set.config.params.pfc.enabled = enabled;
1853                 dcbx_set.config.params.pfc.willing = willing;
1854                 break;
1855         case DCB_FEATCFG_ATTR_APP:
1856                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
1857                 dcbx_set.config.params.app_willing = willing;
1858                 break;
1859         default:
1860                 DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
1861                 return 1;
1862         }
1863
1864         ptt = qed_ptt_acquire(hwfn);
1865         if (!ptt)
1866                 return 1;
1867
1868         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1869
1870         qed_ptt_release(hwfn, ptt);
1871
1872         return 0;
1873 }
1874
1875 static int qed_dcbnl_peer_getappinfo(struct qed_dev *cdev,
1876                                      struct dcb_peer_app_info *info,
1877                                      u16 *app_count)
1878 {
1879         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1880         struct qed_dcbx_get *dcbx_info;
1881
1882         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1883         if (!dcbx_info)
1884                 return -EINVAL;
1885
1886         info->willing = dcbx_info->remote.params.app_willing;
1887         info->error = dcbx_info->remote.params.app_error;
1888         *app_count = dcbx_info->remote.params.num_app_entries;
1889         kfree(dcbx_info);
1890
1891         return 0;
1892 }
1893
1894 static int qed_dcbnl_peer_getapptable(struct qed_dev *cdev,
1895                                       struct dcb_app *table)
1896 {
1897         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1898         struct qed_dcbx_get *dcbx_info;
1899         int i;
1900
1901         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1902         if (!dcbx_info)
1903                 return -EINVAL;
1904
1905         for (i = 0; i < dcbx_info->remote.params.num_app_entries; i++) {
1906                 if (dcbx_info->remote.params.app_entry[i].ethtype)
1907                         table[i].selector = DCB_APP_IDTYPE_ETHTYPE;
1908                 else
1909                         table[i].selector = DCB_APP_IDTYPE_PORTNUM;
1910                 table[i].priority = dcbx_info->remote.params.app_entry[i].prio;
1911                 table[i].protocol =
1912                     dcbx_info->remote.params.app_entry[i].proto_id;
1913         }
1914
1915         kfree(dcbx_info);
1916
1917         return 0;
1918 }
1919
1920 static int qed_dcbnl_cee_peer_getpfc(struct qed_dev *cdev, struct cee_pfc *pfc)
1921 {
1922         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1923         struct qed_dcbx_get *dcbx_info;
1924         int i;
1925
1926         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1927         if (!dcbx_info)
1928                 return -EINVAL;
1929
1930         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
1931                 if (dcbx_info->remote.params.pfc.prio[i])
1932                         pfc->pfc_en |= BIT(i);
1933
1934         pfc->tcs_supported = dcbx_info->remote.params.pfc.max_tc;
1935         DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d tcs_supported = %d\n",
1936                    pfc->pfc_en, pfc->tcs_supported);
1937         kfree(dcbx_info);
1938
1939         return 0;
1940 }
1941
1942 static int qed_dcbnl_cee_peer_getpg(struct qed_dev *cdev, struct cee_pg *pg)
1943 {
1944         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1945         struct qed_dcbx_get *dcbx_info;
1946         int i;
1947
1948         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1949         if (!dcbx_info)
1950                 return -EINVAL;
1951
1952         pg->willing = dcbx_info->remote.params.ets_willing;
1953         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
1954                 pg->pg_bw[i] = dcbx_info->remote.params.ets_tc_bw_tbl[i];
1955                 pg->prio_pg[i] = dcbx_info->remote.params.ets_pri_tc_tbl[i];
1956         }
1957
1958         DP_VERBOSE(hwfn, QED_MSG_DCB, "willing = %d", pg->willing);
1959         kfree(dcbx_info);
1960
1961         return 0;
1962 }
1963
1964 static int qed_dcbnl_get_ieee_pfc(struct qed_dev *cdev,
1965                                   struct ieee_pfc *pfc, bool remote)
1966 {
1967         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1968         struct qed_dcbx_params *params;
1969         struct qed_dcbx_get *dcbx_info;
1970         int rc, i;
1971
1972         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1973         if (!dcbx_info)
1974                 return -EINVAL;
1975
1976         if (!dcbx_info->operational.ieee) {
1977                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
1978                 kfree(dcbx_info);
1979                 return -EINVAL;
1980         }
1981
1982         if (remote) {
1983                 memset(dcbx_info, 0, sizeof(*dcbx_info));
1984                 rc = qed_dcbx_query_params(hwfn, dcbx_info,
1985                                            QED_DCBX_REMOTE_MIB);
1986                 if (rc) {
1987                         kfree(dcbx_info);
1988                         return -EINVAL;
1989                 }
1990
1991                 params = &dcbx_info->remote.params;
1992         } else {
1993                 params = &dcbx_info->operational.params;
1994         }
1995
1996         pfc->pfc_cap = params->pfc.max_tc;
1997         pfc->pfc_en = 0;
1998         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
1999                 if (params->pfc.prio[i])
2000                         pfc->pfc_en |= BIT(i);
2001
2002         kfree(dcbx_info);
2003
2004         return 0;
2005 }
2006
2007 static int qed_dcbnl_ieee_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2008 {
2009         return qed_dcbnl_get_ieee_pfc(cdev, pfc, false);
2010 }
2011
2012 static int qed_dcbnl_ieee_setpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2013 {
2014         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2015         struct qed_dcbx_get *dcbx_info;
2016         struct qed_dcbx_set dcbx_set;
2017         struct qed_ptt *ptt;
2018         int rc, i;
2019
2020         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2021         if (!dcbx_info)
2022                 return -EINVAL;
2023
2024         if (!dcbx_info->operational.ieee) {
2025                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2026                 kfree(dcbx_info);
2027                 return -EINVAL;
2028         }
2029
2030         kfree(dcbx_info);
2031
2032         memset(&dcbx_set, 0, sizeof(dcbx_set));
2033         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2034         if (rc)
2035                 return -EINVAL;
2036
2037         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
2038         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2039                 dcbx_set.config.params.pfc.prio[i] = !!(pfc->pfc_en & BIT(i));
2040
2041         ptt = qed_ptt_acquire(hwfn);
2042         if (!ptt)
2043                 return -EINVAL;
2044
2045         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2046
2047         qed_ptt_release(hwfn, ptt);
2048
2049         return rc;
2050 }
2051
2052 static int qed_dcbnl_get_ieee_ets(struct qed_dev *cdev,
2053                                   struct ieee_ets *ets, bool remote)
2054 {
2055         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2056         struct qed_dcbx_get *dcbx_info;
2057         struct qed_dcbx_params *params;
2058         int rc;
2059
2060         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2061         if (!dcbx_info)
2062                 return -EINVAL;
2063
2064         if (!dcbx_info->operational.ieee) {
2065                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2066                 kfree(dcbx_info);
2067                 return -EINVAL;
2068         }
2069
2070         if (remote) {
2071                 memset(dcbx_info, 0, sizeof(*dcbx_info));
2072                 rc = qed_dcbx_query_params(hwfn, dcbx_info,
2073                                            QED_DCBX_REMOTE_MIB);
2074                 if (rc) {
2075                         kfree(dcbx_info);
2076                         return -EINVAL;
2077                 }
2078
2079                 params = &dcbx_info->remote.params;
2080         } else {
2081                 params = &dcbx_info->operational.params;
2082         }
2083
2084         ets->ets_cap = params->max_ets_tc;
2085         ets->willing = params->ets_willing;
2086         ets->cbs = params->ets_cbs;
2087         memcpy(ets->tc_tx_bw, params->ets_tc_bw_tbl, sizeof(ets->tc_tx_bw));
2088         memcpy(ets->tc_tsa, params->ets_tc_tsa_tbl, sizeof(ets->tc_tsa));
2089         memcpy(ets->prio_tc, params->ets_pri_tc_tbl, sizeof(ets->prio_tc));
2090         kfree(dcbx_info);
2091
2092         return 0;
2093 }
2094
2095 static int qed_dcbnl_ieee_getets(struct qed_dev *cdev, struct ieee_ets *ets)
2096 {
2097         return qed_dcbnl_get_ieee_ets(cdev, ets, false);
2098 }
2099
2100 static int qed_dcbnl_ieee_setets(struct qed_dev *cdev, struct ieee_ets *ets)
2101 {
2102         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2103         struct qed_dcbx_get *dcbx_info;
2104         struct qed_dcbx_set dcbx_set;
2105         struct qed_ptt *ptt;
2106         int rc;
2107
2108         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2109         if (!dcbx_info)
2110                 return -EINVAL;
2111
2112         if (!dcbx_info->operational.ieee) {
2113                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2114                 kfree(dcbx_info);
2115                 return -EINVAL;
2116         }
2117
2118         kfree(dcbx_info);
2119
2120         memset(&dcbx_set, 0, sizeof(dcbx_set));
2121         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2122         if (rc)
2123                 return -EINVAL;
2124
2125         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
2126         dcbx_set.config.params.max_ets_tc = ets->ets_cap;
2127         dcbx_set.config.params.ets_willing = ets->willing;
2128         dcbx_set.config.params.ets_cbs = ets->cbs;
2129         memcpy(dcbx_set.config.params.ets_tc_bw_tbl, ets->tc_tx_bw,
2130                sizeof(ets->tc_tx_bw));
2131         memcpy(dcbx_set.config.params.ets_tc_tsa_tbl, ets->tc_tsa,
2132                sizeof(ets->tc_tsa));
2133         memcpy(dcbx_set.config.params.ets_pri_tc_tbl, ets->prio_tc,
2134                sizeof(ets->prio_tc));
2135
2136         ptt = qed_ptt_acquire(hwfn);
2137         if (!ptt)
2138                 return -EINVAL;
2139
2140         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2141
2142         qed_ptt_release(hwfn, ptt);
2143
2144         return rc;
2145 }
2146
2147 static int
2148 qed_dcbnl_ieee_peer_getets(struct qed_dev *cdev, struct ieee_ets *ets)
2149 {
2150         return qed_dcbnl_get_ieee_ets(cdev, ets, true);
2151 }
2152
2153 static int
2154 qed_dcbnl_ieee_peer_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2155 {
2156         return qed_dcbnl_get_ieee_pfc(cdev, pfc, true);
2157 }
2158
2159 static int qed_dcbnl_ieee_getapp(struct qed_dev *cdev, struct dcb_app *app)
2160 {
2161         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2162         struct qed_dcbx_get *dcbx_info;
2163         struct qed_app_entry *entry;
2164         bool ethtype;
2165         u8 prio = 0;
2166         int i;
2167
2168         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2169         if (!dcbx_info)
2170                 return -EINVAL;
2171
2172         if (!dcbx_info->operational.ieee) {
2173                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2174                 kfree(dcbx_info);
2175                 return -EINVAL;
2176         }
2177
2178         /* ieee defines the selector field value for ethertype to be 1 */
2179         ethtype = !!((app->selector - 1) == DCB_APP_IDTYPE_ETHTYPE);
2180         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
2181                 entry = &dcbx_info->operational.params.app_entry[i];
2182                 if ((entry->ethtype == ethtype) &&
2183                     (entry->proto_id == app->protocol)) {
2184                         prio = entry->prio;
2185                         break;
2186                 }
2187         }
2188
2189         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
2190                 DP_ERR(cdev, "App entry (%d, %d) not found\n", app->selector,
2191                        app->protocol);
2192                 kfree(dcbx_info);
2193                 return -EINVAL;
2194         }
2195
2196         app->priority = ffs(prio) - 1;
2197
2198         kfree(dcbx_info);
2199
2200         return 0;
2201 }
2202
2203 static int qed_dcbnl_ieee_setapp(struct qed_dev *cdev, struct dcb_app *app)
2204 {
2205         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2206         struct qed_dcbx_get *dcbx_info;
2207         struct qed_dcbx_set dcbx_set;
2208         struct qed_app_entry *entry;
2209         struct qed_ptt *ptt;
2210         bool ethtype;
2211         int rc, i;
2212
2213         if (app->priority < 0 || app->priority >= QED_MAX_PFC_PRIORITIES) {
2214                 DP_INFO(hwfn, "Invalid priority %d\n", app->priority);
2215                 return -EINVAL;
2216         }
2217
2218         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2219         if (!dcbx_info)
2220                 return -EINVAL;
2221
2222         if (!dcbx_info->operational.ieee) {
2223                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2224                 kfree(dcbx_info);
2225                 return -EINVAL;
2226         }
2227
2228         kfree(dcbx_info);
2229
2230         memset(&dcbx_set, 0, sizeof(dcbx_set));
2231         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2232         if (rc)
2233                 return -EINVAL;
2234
2235         /* ieee defines the selector field value for ethertype to be 1 */
2236         ethtype = !!((app->selector - 1) == DCB_APP_IDTYPE_ETHTYPE);
2237         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
2238                 entry = &dcbx_set.config.params.app_entry[i];
2239                 if ((entry->ethtype == ethtype) &&
2240                     (entry->proto_id == app->protocol))
2241                         break;
2242                 /* First empty slot */
2243                 if (!entry->proto_id) {
2244                         dcbx_set.config.params.num_app_entries++;
2245                         break;
2246                 }
2247         }
2248
2249         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
2250                 DP_ERR(cdev, "App table is full\n");
2251                 return -EBUSY;
2252         }
2253
2254         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
2255         dcbx_set.config.params.app_entry[i].ethtype = ethtype;
2256         dcbx_set.config.params.app_entry[i].proto_id = app->protocol;
2257         dcbx_set.config.params.app_entry[i].prio = BIT(app->priority);
2258
2259         ptt = qed_ptt_acquire(hwfn);
2260         if (!ptt)
2261                 return -EBUSY;
2262
2263         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2264
2265         qed_ptt_release(hwfn, ptt);
2266
2267         return rc;
2268 }
2269
2270 const struct qed_eth_dcbnl_ops qed_dcbnl_ops_pass = {
2271         .getstate = qed_dcbnl_getstate,
2272         .setstate = qed_dcbnl_setstate,
2273         .getpgtccfgtx = qed_dcbnl_getpgtccfgtx,
2274         .getpgbwgcfgtx = qed_dcbnl_getpgbwgcfgtx,
2275         .getpgtccfgrx = qed_dcbnl_getpgtccfgrx,
2276         .getpgbwgcfgrx = qed_dcbnl_getpgbwgcfgrx,
2277         .getpfccfg = qed_dcbnl_getpfccfg,
2278         .setpfccfg = qed_dcbnl_setpfccfg,
2279         .getcap = qed_dcbnl_getcap,
2280         .getnumtcs = qed_dcbnl_getnumtcs,
2281         .getpfcstate = qed_dcbnl_getpfcstate,
2282         .getdcbx = qed_dcbnl_getdcbx,
2283         .setpgtccfgtx = qed_dcbnl_setpgtccfgtx,
2284         .setpgtccfgrx = qed_dcbnl_setpgtccfgrx,
2285         .setpgbwgcfgtx = qed_dcbnl_setpgbwgcfgtx,
2286         .setpgbwgcfgrx = qed_dcbnl_setpgbwgcfgrx,
2287         .setall = qed_dcbnl_setall,
2288         .setnumtcs = qed_dcbnl_setnumtcs,
2289         .setpfcstate = qed_dcbnl_setpfcstate,
2290         .setapp = qed_dcbnl_setapp,
2291         .setdcbx = qed_dcbnl_setdcbx,
2292         .setfeatcfg = qed_dcbnl_setfeatcfg,
2293         .getfeatcfg = qed_dcbnl_getfeatcfg,
2294         .getapp = qed_dcbnl_getapp,
2295         .peer_getappinfo = qed_dcbnl_peer_getappinfo,
2296         .peer_getapptable = qed_dcbnl_peer_getapptable,
2297         .cee_peer_getpfc = qed_dcbnl_cee_peer_getpfc,
2298         .cee_peer_getpg = qed_dcbnl_cee_peer_getpg,
2299         .ieee_getpfc = qed_dcbnl_ieee_getpfc,
2300         .ieee_setpfc = qed_dcbnl_ieee_setpfc,
2301         .ieee_getets = qed_dcbnl_ieee_getets,
2302         .ieee_setets = qed_dcbnl_ieee_setets,
2303         .ieee_peer_getpfc = qed_dcbnl_ieee_peer_getpfc,
2304         .ieee_peer_getets = qed_dcbnl_ieee_peer_getets,
2305         .ieee_getapp = qed_dcbnl_ieee_getapp,
2306         .ieee_setapp = qed_dcbnl_ieee_setapp,
2307 };
2308
2309 #endif