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

   1 /* QLogic qed NIC Driver
   2  * Copyright (c) 2015-2017  QLogic Corporation
   3  *
   4  * This software is available to you under a choice of one of two
   5  * licenses.  You may choose to be licensed under the terms of the GNU
   6  * General Public License (GPL) Version 2, available from the file
   7  * COPYING in the main directory of this source tree, or the
   8  * OpenIB.org BSD license below:
   9  *
  10  *     Redistribution and use in source and binary forms, with or
  11  *     without modification, are permitted provided that the following
  12  *     conditions are met:
  13  *
  14  *      - Redistributions of source code must retain the above
  15  *        copyright notice, this list of conditions and the following
  16  *        disclaimer.
  17  *
  18  *      - Redistributions in binary form must reproduce the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer in the documentation and /or other materials
  21  *        provided with the distribution.
  22  *
  23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30  * SOFTWARE.
  31  */
  32
  33 #include <linux/types.h>
  34 #include <asm/byteorder.h>
  35 #include <linux/bitops.h>
  36 #include <linux/dcbnl.h>
  37 #include <linux/errno.h>
  38 #include <linux/kernel.h>
  39 #include <linux/slab.h>
  40 #include <linux/string.h>
  41 #include "qed.h"
  42 #include "qed_cxt.h"
  43 #include "qed_dcbx.h"
  44 #include "qed_hsi.h"
  45 #include "qed_sp.h"
  46 #include "qed_sriov.h"
  47 #ifdef CONFIG_DCB
  48 #include <linux/qed/qed_eth_if.h>
  49 #endif
  50
  51 #define QED_DCBX_MAX_MIB_READ_TRY       (100)
  52 #define QED_ETH_TYPE_DEFAULT            (0)
  53 #define QED_ETH_TYPE_ROCE               (0x8915)
  54 #define QED_UDP_PORT_TYPE_ROCE_V2       (0x12B7)
  55 #define QED_ETH_TYPE_FCOE               (0x8906)
  56 #define QED_TCP_PORT_ISCSI              (0xCBC)
  57
  58 #define QED_DCBX_INVALID_PRIORITY       0xFF
  59
  60 /* Get Traffic Class from priority traffic class table, 4 bits represent
  61  * the traffic class corresponding to the priority.
  62  */
  63 #define QED_DCBX_PRIO2TC(prio_tc_tbl, prio) \
  64         ((u32)(prio_tc_tbl >> ((7 - prio) * 4)) & 0x7)
  65
  66 static const struct qed_dcbx_app_metadata qed_dcbx_app_update[] = {
  67         {DCBX_PROTOCOL_ISCSI, "ISCSI", QED_PCI_ISCSI},
  68         {DCBX_PROTOCOL_FCOE, "FCOE", QED_PCI_FCOE},
  69         {DCBX_PROTOCOL_ROCE, "ROCE", QED_PCI_ETH_ROCE},
  70         {DCBX_PROTOCOL_ROCE_V2, "ROCE_V2", QED_PCI_ETH_ROCE},
  71         {DCBX_PROTOCOL_ETH, "ETH", QED_PCI_ETH},
  72 };
  73
  74 static bool qed_dcbx_app_ethtype(u32 app_info_bitmap)
  75 {
  76         return !!(QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) ==
  77                   DCBX_APP_SF_ETHTYPE);
  78 }
  79
  80 static bool qed_dcbx_ieee_app_ethtype(u32 app_info_bitmap)
  81 {
  82         u8 mfw_val = QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE);
  83
  84         /* Old MFW */
  85         if (mfw_val == DCBX_APP_SF_IEEE_RESERVED)
  86                 return qed_dcbx_app_ethtype(app_info_bitmap);
  87
  88         return !!(mfw_val == DCBX_APP_SF_IEEE_ETHTYPE);
  89 }
  90
  91 static bool qed_dcbx_app_port(u32 app_info_bitmap)
  92 {
  93         return !!(QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) ==
  94                   DCBX_APP_SF_PORT);
  95 }
  96
  97 static bool qed_dcbx_ieee_app_port(u32 app_info_bitmap, u8 type)
  98 {
  99         u8 mfw_val = QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE);
 100
 101         /* Old MFW */
 102         if (mfw_val == DCBX_APP_SF_IEEE_RESERVED)
 103                 return qed_dcbx_app_port(app_info_bitmap);
 104
 105         return !!(mfw_val == type || mfw_val == DCBX_APP_SF_IEEE_TCP_UDP_PORT);
 106 }
 107
 108 static bool qed_dcbx_default_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
 109 {
 110         bool ethtype;
 111
 112         if (ieee)
 113                 ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
 114         else
 115                 ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
 116
 117         return !!(ethtype && (proto_id == QED_ETH_TYPE_DEFAULT));
 118 }
 119
 120 static bool qed_dcbx_iscsi_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
 121 {
 122         bool port;
 123
 124         if (ieee)
 125                 port = qed_dcbx_ieee_app_port(app_info_bitmap,
 126                                               DCBX_APP_SF_IEEE_TCP_PORT);
 127         else
 128                 port = qed_dcbx_app_port(app_info_bitmap);
 129
 130         return !!(port && (proto_id == QED_TCP_PORT_ISCSI));
 131 }
 132
 133 static bool qed_dcbx_fcoe_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
 134 {
 135         bool ethtype;
 136
 137         if (ieee)
 138                 ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
 139         else
 140                 ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
 141
 142         return !!(ethtype && (proto_id == QED_ETH_TYPE_FCOE));
 143 }
 144
 145 static bool qed_dcbx_roce_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
 146 {
 147         bool ethtype;
 148
 149         if (ieee)
 150                 ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
 151         else
 152                 ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
 153
 154         return !!(ethtype && (proto_id == QED_ETH_TYPE_ROCE));
 155 }
 156
 157 static bool qed_dcbx_roce_v2_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
 158 {
 159         bool port;
 160
 161         if (ieee)
 162                 port = qed_dcbx_ieee_app_port(app_info_bitmap,
 163                                               DCBX_APP_SF_IEEE_UDP_PORT);
 164         else
 165                 port = qed_dcbx_app_port(app_info_bitmap);
 166
 167         return !!(port && (proto_id == QED_UDP_PORT_TYPE_ROCE_V2));
 168 }
 169
 170 static void
 171 qed_dcbx_dp_protocol(struct qed_hwfn *p_hwfn, struct qed_dcbx_results *p_data)
 172 {
 173         enum dcbx_protocol_type id;
 174         int i;
 175
 176         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "DCBX negotiated: %d\n",
 177                    p_data->dcbx_enabled);
 178
 179         for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) {
 180                 id = qed_dcbx_app_update[i].id;
 181
 182                 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 183                            "%s info: update %d, enable %d, prio %d, tc %d, num_tc %d\n",
 184                            qed_dcbx_app_update[i].name, p_data->arr[id].update,
 185                            p_data->arr[id].enable, p_data->arr[id].priority,
 186                            p_data->arr[id].tc, p_hwfn->hw_info.num_active_tc);
 187         }
 188 }
 189
 190 static void
 191 qed_dcbx_set_params(struct qed_dcbx_results *p_data,
 192                     struct qed_hw_info *p_info,
 193                     bool enable,
 194                     bool update,
 195                     u8 prio,
 196                     u8 tc,
 197                     enum dcbx_protocol_type type,
 198                     enum qed_pci_personality personality)
 199 {
 200         /* PF update ramrod data */
 201         p_data->arr[type].update = update;
 202         p_data->arr[type].enable = enable;
 203         p_data->arr[type].priority = prio;
 204         p_data->arr[type].tc = tc;
 205
 206         /* QM reconf data */
 207         if (p_info->personality == personality)
 208                 p_info->offload_tc = tc;
 209 }
 210
 211 /* Update app protocol data and hw_info fields with the TLV info */
 212 static void
 213 qed_dcbx_update_app_info(struct qed_dcbx_results *p_data,
 214                          struct qed_hwfn *p_hwfn,
 215                          bool enable,
 216                          bool update,
 217                          u8 prio, u8 tc, enum dcbx_protocol_type type)
 218 {
 219         struct qed_hw_info *p_info = &p_hwfn->hw_info;
 220         enum qed_pci_personality personality;
 221         enum dcbx_protocol_type id;
 222         char *name;
 223         int i;
 224
 225         for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) {
 226                 id = qed_dcbx_app_update[i].id;
 227
 228                 if (type != id)
 229                         continue;
 230
 231                 personality = qed_dcbx_app_update[i].personality;
 232                 name = qed_dcbx_app_update[i].name;
 233
 234                 qed_dcbx_set_params(p_data, p_info, enable, update,
 235                                     prio, tc, type, personality);
 236         }
 237 }
 238
 239 static bool
 240 qed_dcbx_get_app_protocol_type(struct qed_hwfn *p_hwfn,
 241                                u32 app_prio_bitmap,
 242                                u16 id, enum dcbx_protocol_type *type, bool ieee)
 243 {
 244         if (qed_dcbx_fcoe_tlv(app_prio_bitmap, id, ieee)) {
 245                 *type = DCBX_PROTOCOL_FCOE;
 246         } else if (qed_dcbx_roce_tlv(app_prio_bitmap, id, ieee)) {
 247                 *type = DCBX_PROTOCOL_ROCE;
 248         } else if (qed_dcbx_iscsi_tlv(app_prio_bitmap, id, ieee)) {
 249                 *type = DCBX_PROTOCOL_ISCSI;
 250         } else if (qed_dcbx_default_tlv(app_prio_bitmap, id, ieee)) {
 251                 *type = DCBX_PROTOCOL_ETH;
 252         } else if (qed_dcbx_roce_v2_tlv(app_prio_bitmap, id, ieee)) {
 253                 *type = DCBX_PROTOCOL_ROCE_V2;
 254         } else {
 255                 *type = DCBX_MAX_PROTOCOL_TYPE;
 256                 DP_ERR(p_hwfn,
 257                        "No action required, App TLV id = 0x%x app_prio_bitmap = 0x%x\n",
 258                        id, app_prio_bitmap);
 259                 return false;
 260         }
 261
 262         return true;
 263 }
 264
 265 /* Parse app TLV's to update TC information in hw_info structure for
 266  * reconfiguring QM. Get protocol specific data for PF update ramrod command.
 267  */
 268 static int
 269 qed_dcbx_process_tlv(struct qed_hwfn *p_hwfn,
 270                      struct qed_dcbx_results *p_data,
 271                      struct dcbx_app_priority_entry *p_tbl,
 272                      u32 pri_tc_tbl, int count, u8 dcbx_version)
 273 {
 274         enum dcbx_protocol_type type;
 275         u8 tc, priority_map;
 276         bool enable, ieee;
 277         u16 protocol_id;
 278         int priority;
 279         int i;
 280
 281         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Num APP entries = %d\n", count);
 282
 283         ieee = (dcbx_version == DCBX_CONFIG_VERSION_IEEE);
 284         /* Parse APP TLV */
 285         for (i = 0; i < count; i++) {
 286                 protocol_id = QED_MFW_GET_FIELD(p_tbl[i].entry,
 287                                                 DCBX_APP_PROTOCOL_ID);
 288                 priority_map = QED_MFW_GET_FIELD(p_tbl[i].entry,
 289                                                  DCBX_APP_PRI_MAP);
 290                 priority = ffs(priority_map) - 1;
 291                 if (priority < 0) {
 292                         DP_ERR(p_hwfn, "Invalid priority\n");
 293                         return -EINVAL;
 294                 }
 295
 296                 tc = QED_DCBX_PRIO2TC(pri_tc_tbl, priority);
 297                 if (qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
 298                                                    protocol_id, &type, ieee)) {
 299                         /* ETH always have the enable bit reset, as it gets
 300                          * vlan information per packet. For other protocols,
 301                          * should be set according to the dcbx_enabled
 302                          * indication, but we only got here if there was an
 303                          * app tlv for the protocol, so dcbx must be enabled.
 304                          */
 305                         enable = !(type == DCBX_PROTOCOL_ETH);
 306
 307                         qed_dcbx_update_app_info(p_data, p_hwfn, enable, true,
 308                                                  priority, tc, type);
 309                 }
 310         }
 311
 312         /* If RoCE-V2 TLV is not detected, driver need to use RoCE app
 313          * data for RoCE-v2 not the default app data.
 314          */
 315         if (!p_data->arr[DCBX_PROTOCOL_ROCE_V2].update &&
 316             p_data->arr[DCBX_PROTOCOL_ROCE].update) {
 317                 tc = p_data->arr[DCBX_PROTOCOL_ROCE].tc;
 318                 priority = p_data->arr[DCBX_PROTOCOL_ROCE].priority;
 319                 qed_dcbx_update_app_info(p_data, p_hwfn, true, true,
 320                                          priority, tc, DCBX_PROTOCOL_ROCE_V2);
 321         }
 322
 323         /* Update ramrod protocol data and hw_info fields
 324          * with default info when corresponding APP TLV's are not detected.
 325          * The enabled field has a different logic for ethernet as only for
 326          * ethernet dcb should disabled by default, as the information arrives
 327          * from the OS (unless an explicit app tlv was present).
 328          */
 329         tc = p_data->arr[DCBX_PROTOCOL_ETH].tc;
 330         priority = p_data->arr[DCBX_PROTOCOL_ETH].priority;
 331         for (type = 0; type < DCBX_MAX_PROTOCOL_TYPE; type++) {
 332                 if (p_data->arr[type].update)
 333                         continue;
 334
 335                 enable = !(type == DCBX_PROTOCOL_ETH);
 336                 qed_dcbx_update_app_info(p_data, p_hwfn, enable, true,
 337                                          priority, tc, type);
 338         }
 339
 340         return 0;
 341 }
 342
 343 /* Parse app TLV's to update TC information in hw_info structure for
 344  * reconfiguring QM. Get protocol specific data for PF update ramrod command.
 345  */
 346 static int qed_dcbx_process_mib_info(struct qed_hwfn *p_hwfn)
 347 {
 348         struct dcbx_app_priority_feature *p_app;
 349         struct dcbx_app_priority_entry *p_tbl;
 350         struct qed_dcbx_results data = { 0 };
 351         struct dcbx_ets_feature *p_ets;
 352         struct qed_hw_info *p_info;
 353         u32 pri_tc_tbl, flags;
 354         u8 dcbx_version;
 355         int num_entries;
 356         int rc = 0;
 357
 358         flags = p_hwfn->p_dcbx_info->operational.flags;
 359         dcbx_version = QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION);
 360
 361         p_app = &p_hwfn->p_dcbx_info->operational.features.app;
 362         p_tbl = p_app->app_pri_tbl;
 363
 364         p_ets = &p_hwfn->p_dcbx_info->operational.features.ets;
 365         pri_tc_tbl = p_ets->pri_tc_tbl[0];
 366
 367         p_info = &p_hwfn->hw_info;
 368         num_entries = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_NUM_ENTRIES);
 369
 370         rc = qed_dcbx_process_tlv(p_hwfn, &data, p_tbl, pri_tc_tbl,
 371                                   num_entries, dcbx_version);
 372         if (rc)
 373                 return rc;
 374
 375         p_info->num_active_tc = QED_MFW_GET_FIELD(p_ets->flags,
 376                                                   DCBX_ETS_MAX_TCS);
 377         p_hwfn->qm_info.ooo_tc = QED_MFW_GET_FIELD(p_ets->flags, DCBX_OOO_TC);
 378         data.pf_id = p_hwfn->rel_pf_id;
 379         data.dcbx_enabled = !!dcbx_version;
 380
 381         qed_dcbx_dp_protocol(p_hwfn, &data);
 382
 383         memcpy(&p_hwfn->p_dcbx_info->results, &data,
 384                sizeof(struct qed_dcbx_results));
 385
 386         return 0;
 387 }
 388
 389 static int
 390 qed_dcbx_copy_mib(struct qed_hwfn *p_hwfn,
 391                   struct qed_ptt *p_ptt,
 392                   struct qed_dcbx_mib_meta_data *p_data,
 393                   enum qed_mib_read_type type)
 394 {
 395         u32 prefix_seq_num, suffix_seq_num;
 396         int read_count = 0;
 397         int rc = 0;
 398
 399         /* The data is considered to be valid only if both sequence numbers are
 400          * the same.
 401          */
 402         do {
 403                 if (type == QED_DCBX_REMOTE_LLDP_MIB) {
 404                         qed_memcpy_from(p_hwfn, p_ptt, p_data->lldp_remote,
 405                                         p_data->addr, p_data->size);
 406                         prefix_seq_num = p_data->lldp_remote->prefix_seq_num;
 407                         suffix_seq_num = p_data->lldp_remote->suffix_seq_num;
 408                 } else {
 409                         qed_memcpy_from(p_hwfn, p_ptt, p_data->mib,
 410                                         p_data->addr, p_data->size);
 411                         prefix_seq_num = p_data->mib->prefix_seq_num;
 412                         suffix_seq_num = p_data->mib->suffix_seq_num;
 413                 }
 414                 read_count++;
 415
 416                 DP_VERBOSE(p_hwfn,
 417                            QED_MSG_DCB,
 418                            "mib type = %d, try count = %d prefix seq num  = %d suffix seq num = %d\n",
 419                            type, read_count, prefix_seq_num, suffix_seq_num);
 420         } while ((prefix_seq_num != suffix_seq_num) &&
 421                  (read_count < QED_DCBX_MAX_MIB_READ_TRY));
 422
 423         if (read_count >= QED_DCBX_MAX_MIB_READ_TRY) {
 424                 DP_ERR(p_hwfn,
 425                        "MIB read err, mib type = %d, try count = %d prefix seq num = %d suffix seq num = %d\n",
 426                        type, read_count, prefix_seq_num, suffix_seq_num);
 427                 rc = -EIO;
 428         }
 429
 430         return rc;
 431 }
 432
 433 static void
 434 qed_dcbx_get_priority_info(struct qed_hwfn *p_hwfn,
 435                            struct qed_dcbx_app_prio *p_prio,
 436                            struct qed_dcbx_results *p_results)
 437 {
 438         u8 val;
 439
 440         p_prio->roce = QED_DCBX_INVALID_PRIORITY;
 441         p_prio->roce_v2 = QED_DCBX_INVALID_PRIORITY;
 442         p_prio->iscsi = QED_DCBX_INVALID_PRIORITY;
 443         p_prio->fcoe = QED_DCBX_INVALID_PRIORITY;
 444
 445         if (p_results->arr[DCBX_PROTOCOL_ROCE].update &&
 446             p_results->arr[DCBX_PROTOCOL_ROCE].enable)
 447                 p_prio->roce = p_results->arr[DCBX_PROTOCOL_ROCE].priority;
 448
 449         if (p_results->arr[DCBX_PROTOCOL_ROCE_V2].update &&
 450             p_results->arr[DCBX_PROTOCOL_ROCE_V2].enable) {
 451                 val = p_results->arr[DCBX_PROTOCOL_ROCE_V2].priority;
 452                 p_prio->roce_v2 = val;
 453         }
 454
 455         if (p_results->arr[DCBX_PROTOCOL_ISCSI].update &&
 456             p_results->arr[DCBX_PROTOCOL_ISCSI].enable)
 457                 p_prio->iscsi = p_results->arr[DCBX_PROTOCOL_ISCSI].priority;
 458
 459         if (p_results->arr[DCBX_PROTOCOL_FCOE].update &&
 460             p_results->arr[DCBX_PROTOCOL_FCOE].enable)
 461                 p_prio->fcoe = p_results->arr[DCBX_PROTOCOL_FCOE].priority;
 462
 463         if (p_results->arr[DCBX_PROTOCOL_ETH].update &&
 464             p_results->arr[DCBX_PROTOCOL_ETH].enable)
 465                 p_prio->eth = p_results->arr[DCBX_PROTOCOL_ETH].priority;
 466
 467         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 468                    "Priorities: iscsi %d, roce %d, roce v2 %d, fcoe %d, eth %d\n",
 469                    p_prio->iscsi, p_prio->roce, p_prio->roce_v2, p_prio->fcoe,
 470                    p_prio->eth);
 471 }
 472
 473 static void
 474 qed_dcbx_get_app_data(struct qed_hwfn *p_hwfn,
 475                       struct dcbx_app_priority_feature *p_app,
 476                       struct dcbx_app_priority_entry *p_tbl,
 477                       struct qed_dcbx_params *p_params, bool ieee)
 478 {
 479         struct qed_app_entry *entry;
 480         u8 pri_map;
 481         int i;
 482
 483         p_params->app_willing = QED_MFW_GET_FIELD(p_app->flags,
 484                                                   DCBX_APP_WILLING);
 485         p_params->app_valid = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_ENABLED);
 486         p_params->app_error = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_ERROR);
 487         p_params->num_app_entries = QED_MFW_GET_FIELD(p_app->flags,
 488                                                       DCBX_APP_NUM_ENTRIES);
 489         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
 490                 entry = &p_params->app_entry[i];
 491                 if (ieee) {
 492                         u8 sf_ieee;
 493                         u32 val;
 494
 495                         sf_ieee = QED_MFW_GET_FIELD(p_tbl[i].entry,
 496                                                     DCBX_APP_SF_IEEE);
 497                         switch (sf_ieee) {
 498                         case DCBX_APP_SF_IEEE_RESERVED:
 499                                 /* Old MFW */
 500                                 val = QED_MFW_GET_FIELD(p_tbl[i].entry,
 501                                                         DCBX_APP_SF);
 502                                 entry->sf_ieee = val ?
 503                                     QED_DCBX_SF_IEEE_TCP_UDP_PORT :
 504                                     QED_DCBX_SF_IEEE_ETHTYPE;
 505                                 break;
 506                         case DCBX_APP_SF_IEEE_ETHTYPE:
 507                                 entry->sf_ieee = QED_DCBX_SF_IEEE_ETHTYPE;
 508                                 break;
 509                         case DCBX_APP_SF_IEEE_TCP_PORT:
 510                                 entry->sf_ieee = QED_DCBX_SF_IEEE_TCP_PORT;
 511                                 break;
 512                         case DCBX_APP_SF_IEEE_UDP_PORT:
 513                                 entry->sf_ieee = QED_DCBX_SF_IEEE_UDP_PORT;
 514                                 break;
 515                         case DCBX_APP_SF_IEEE_TCP_UDP_PORT:
 516                                 entry->sf_ieee = QED_DCBX_SF_IEEE_TCP_UDP_PORT;
 517                                 break;
 518                         }
 519                 } else {
 520                         entry->ethtype = !(QED_MFW_GET_FIELD(p_tbl[i].entry,
 521                                                              DCBX_APP_SF));
 522                 }
 523
 524                 pri_map = QED_MFW_GET_FIELD(p_tbl[i].entry, DCBX_APP_PRI_MAP);
 525                 entry->prio = ffs(pri_map) - 1;
 526                 entry->proto_id = QED_MFW_GET_FIELD(p_tbl[i].entry,
 527                                                     DCBX_APP_PROTOCOL_ID);
 528                 qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
 529                                                entry->proto_id,
 530                                                &entry->proto_type, ieee);
 531         }
 532
 533         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 534                    "APP params: willing %d, valid %d error = %d\n",
 535                    p_params->app_willing, p_params->app_valid,
 536                    p_params->app_error);
 537 }
 538
 539 static void
 540 qed_dcbx_get_pfc_data(struct qed_hwfn *p_hwfn,
 541                       u32 pfc, struct qed_dcbx_params *p_params)
 542 {
 543         u8 pfc_map;
 544
 545         p_params->pfc.willing = QED_MFW_GET_FIELD(pfc, DCBX_PFC_WILLING);
 546         p_params->pfc.max_tc = QED_MFW_GET_FIELD(pfc, DCBX_PFC_CAPS);
 547         p_params->pfc.enabled = QED_MFW_GET_FIELD(pfc, DCBX_PFC_ENABLED);
 548         pfc_map = QED_MFW_GET_FIELD(pfc, DCBX_PFC_PRI_EN_BITMAP);
 549         p_params->pfc.prio[0] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_0);
 550         p_params->pfc.prio[1] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_1);
 551         p_params->pfc.prio[2] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_2);
 552         p_params->pfc.prio[3] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_3);
 553         p_params->pfc.prio[4] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_4);
 554         p_params->pfc.prio[5] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_5);
 555         p_params->pfc.prio[6] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_6);
 556         p_params->pfc.prio[7] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_7);
 557
 558         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 559                    "PFC params: willing %d, pfc_bitmap %u max_tc = %u enabled = %d\n",
 560                    p_params->pfc.willing, pfc_map, p_params->pfc.max_tc,
 561                    p_params->pfc.enabled);
 562 }
 563
 564 static void
 565 qed_dcbx_get_ets_data(struct qed_hwfn *p_hwfn,
 566                       struct dcbx_ets_feature *p_ets,
 567                       struct qed_dcbx_params *p_params)
 568 {
 569         u32 bw_map[2], tsa_map[2], pri_map;
 570         int i;
 571
 572         p_params->ets_willing = QED_MFW_GET_FIELD(p_ets->flags,
 573                                                   DCBX_ETS_WILLING);
 574         p_params->ets_enabled = QED_MFW_GET_FIELD(p_ets->flags,
 575                                                   DCBX_ETS_ENABLED);
 576         p_params->ets_cbs = QED_MFW_GET_FIELD(p_ets->flags, DCBX_ETS_CBS);
 577         p_params->max_ets_tc = QED_MFW_GET_FIELD(p_ets->flags,
 578                                                  DCBX_ETS_MAX_TCS);
 579         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 580                    "ETS params: willing %d, enabled = %d ets_cbs %d pri_tc_tbl_0 %x max_ets_tc %d\n",
 581                    p_params->ets_willing, p_params->ets_enabled,
 582                    p_params->ets_cbs, p_ets->pri_tc_tbl[0],
 583                    p_params->max_ets_tc);
 584
 585         if (p_params->ets_enabled && !p_params->max_ets_tc) {
 586                 p_params->max_ets_tc = QED_MAX_PFC_PRIORITIES;
 587                 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 588                            "ETS params: max_ets_tc is forced to %d\n",
 589                 p_params->max_ets_tc);
 590         }
 591
 592         /* 8 bit tsa and bw data corresponding to each of the 8 TC's are
 593          * encoded in a type u32 array of size 2.
 594          */
 595         bw_map[0] = be32_to_cpu(p_ets->tc_bw_tbl[0]);
 596         bw_map[1] = be32_to_cpu(p_ets->tc_bw_tbl[1]);
 597         tsa_map[0] = be32_to_cpu(p_ets->tc_tsa_tbl[0]);
 598         tsa_map[1] = be32_to_cpu(p_ets->tc_tsa_tbl[1]);
 599         pri_map = p_ets->pri_tc_tbl[0];
 600         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
 601                 p_params->ets_tc_bw_tbl[i] = ((u8 *)bw_map)[i];
 602                 p_params->ets_tc_tsa_tbl[i] = ((u8 *)tsa_map)[i];
 603                 p_params->ets_pri_tc_tbl[i] = QED_DCBX_PRIO2TC(pri_map, i);
 604                 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 605                            "elem %d  bw_tbl %x tsa_tbl %x\n",
 606                            i, p_params->ets_tc_bw_tbl[i],
 607                            p_params->ets_tc_tsa_tbl[i]);
 608         }
 609 }
 610
 611 static void
 612 qed_dcbx_get_common_params(struct qed_hwfn *p_hwfn,
 613                            struct dcbx_app_priority_feature *p_app,
 614                            struct dcbx_app_priority_entry *p_tbl,
 615                            struct dcbx_ets_feature *p_ets,
 616                            u32 pfc, struct qed_dcbx_params *p_params, bool ieee)
 617 {
 618         qed_dcbx_get_app_data(p_hwfn, p_app, p_tbl, p_params, ieee);
 619         qed_dcbx_get_ets_data(p_hwfn, p_ets, p_params);
 620         qed_dcbx_get_pfc_data(p_hwfn, pfc, p_params);
 621 }
 622
 623 static void
 624 qed_dcbx_get_local_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *params)
 625 {
 626         struct dcbx_features *p_feat;
 627
 628         p_feat = &p_hwfn->p_dcbx_info->local_admin.features;
 629         qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
 630                                    p_feat->app.app_pri_tbl, &p_feat->ets,
 631                                    p_feat->pfc, &params->local.params, false);
 632         params->local.valid = true;
 633 }
 634
 635 static void
 636 qed_dcbx_get_remote_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *params)
 637 {
 638         struct dcbx_features *p_feat;
 639
 640         p_feat = &p_hwfn->p_dcbx_info->remote.features;
 641         qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
 642                                    p_feat->app.app_pri_tbl, &p_feat->ets,
 643                                    p_feat->pfc, &params->remote.params, false);
 644         params->remote.valid = true;
 645 }
 646
 647 static void
 648 qed_dcbx_get_operational_params(struct qed_hwfn *p_hwfn,
 649                                 struct qed_dcbx_get *params)
 650 {
 651         struct qed_dcbx_operational_params *p_operational;
 652         struct qed_dcbx_results *p_results;
 653         struct dcbx_features *p_feat;
 654         bool enabled, err;
 655         u32 flags;
 656         bool val;
 657
 658         flags = p_hwfn->p_dcbx_info->operational.flags;
 659
 660         /* If DCBx version is non zero, then negotiation
 661          * was successfuly performed
 662          */
 663         p_operational = &params->operational;
 664         enabled = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) !=
 665                      DCBX_CONFIG_VERSION_DISABLED);
 666         if (!enabled) {
 667                 p_operational->enabled = enabled;
 668                 p_operational->valid = false;
 669                 DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Dcbx is disabled\n");
 670                 return;
 671         }
 672
 673         p_feat = &p_hwfn->p_dcbx_info->operational.features;
 674         p_results = &p_hwfn->p_dcbx_info->results;
 675
 676         val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
 677                  DCBX_CONFIG_VERSION_IEEE);
 678         p_operational->ieee = val;
 679         val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
 680                  DCBX_CONFIG_VERSION_CEE);
 681         p_operational->cee = val;
 682
 683         val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
 684                  DCBX_CONFIG_VERSION_STATIC);
 685         p_operational->local = val;
 686
 687         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 688                    "Version support: ieee %d, cee %d, static %d\n",
 689                    p_operational->ieee, p_operational->cee,
 690                    p_operational->local);
 691
 692         qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
 693                                    p_feat->app.app_pri_tbl, &p_feat->ets,
 694                                    p_feat->pfc, &params->operational.params,
 695                                    p_operational->ieee);
 696         qed_dcbx_get_priority_info(p_hwfn, &p_operational->app_prio, p_results);
 697         err = QED_MFW_GET_FIELD(p_feat->app.flags, DCBX_APP_ERROR);
 698         p_operational->err = err;
 699         p_operational->enabled = enabled;
 700         p_operational->valid = true;
 701 }
 702
 703 static void
 704 qed_dcbx_get_local_lldp_params(struct qed_hwfn *p_hwfn,
 705                                struct qed_dcbx_get *params)
 706 {
 707         struct lldp_config_params_s *p_local;
 708
 709         p_local = &p_hwfn->p_dcbx_info->lldp_local[LLDP_NEAREST_BRIDGE];
 710
 711         memcpy(params->lldp_local.local_chassis_id, p_local->local_chassis_id,
 712                ARRAY_SIZE(p_local->local_chassis_id));
 713         memcpy(params->lldp_local.local_port_id, p_local->local_port_id,
 714                ARRAY_SIZE(p_local->local_port_id));
 715 }
 716
 717 static void
 718 qed_dcbx_get_remote_lldp_params(struct qed_hwfn *p_hwfn,
 719                                 struct qed_dcbx_get *params)
 720 {
 721         struct lldp_status_params_s *p_remote;
 722
 723         p_remote = &p_hwfn->p_dcbx_info->lldp_remote[LLDP_NEAREST_BRIDGE];
 724
 725         memcpy(params->lldp_remote.peer_chassis_id, p_remote->peer_chassis_id,
 726                ARRAY_SIZE(p_remote->peer_chassis_id));
 727         memcpy(params->lldp_remote.peer_port_id, p_remote->peer_port_id,
 728                ARRAY_SIZE(p_remote->peer_port_id));
 729 }
 730
 731 static int
 732 qed_dcbx_get_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *p_params,
 733                     enum qed_mib_read_type type)
 734 {
 735         switch (type) {
 736         case QED_DCBX_REMOTE_MIB:
 737                 qed_dcbx_get_remote_params(p_hwfn, p_params);
 738                 break;
 739         case QED_DCBX_LOCAL_MIB:
 740                 qed_dcbx_get_local_params(p_hwfn, p_params);
 741                 break;
 742         case QED_DCBX_OPERATIONAL_MIB:
 743                 qed_dcbx_get_operational_params(p_hwfn, p_params);
 744                 break;
 745         case QED_DCBX_REMOTE_LLDP_MIB:
 746                 qed_dcbx_get_remote_lldp_params(p_hwfn, p_params);
 747                 break;
 748         case QED_DCBX_LOCAL_LLDP_MIB:
 749                 qed_dcbx_get_local_lldp_params(p_hwfn, p_params);
 750                 break;
 751         default:
 752                 DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
 753                 return -EINVAL;
 754         }
 755
 756         return 0;
 757 }
 758
 759 static int
 760 qed_dcbx_read_local_lldp_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 761 {
 762         struct qed_dcbx_mib_meta_data data;
 763         int rc = 0;
 764
 765         memset(&data, 0, sizeof(data));
 766         data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
 767                                                            lldp_config_params);
 768         data.lldp_local = p_hwfn->p_dcbx_info->lldp_local;
 769         data.size = sizeof(struct lldp_config_params_s);
 770         qed_memcpy_from(p_hwfn, p_ptt, data.lldp_local, data.addr, data.size);
 771
 772         return rc;
 773 }
 774
 775 static int
 776 qed_dcbx_read_remote_lldp_mib(struct qed_hwfn *p_hwfn,
 777                               struct qed_ptt *p_ptt,
 778                               enum qed_mib_read_type type)
 779 {
 780         struct qed_dcbx_mib_meta_data data;
 781         int rc = 0;
 782
 783         memset(&data, 0, sizeof(data));
 784         data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
 785                                                            lldp_status_params);
 786         data.lldp_remote = p_hwfn->p_dcbx_info->lldp_remote;
 787         data.size = sizeof(struct lldp_status_params_s);
 788         rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 789
 790         return rc;
 791 }
 792
 793 static int
 794 qed_dcbx_read_operational_mib(struct qed_hwfn *p_hwfn,
 795                               struct qed_ptt *p_ptt,
 796                               enum qed_mib_read_type type)
 797 {
 798         struct qed_dcbx_mib_meta_data data;
 799         int rc = 0;
 800
 801         memset(&data, 0, sizeof(data));
 802         data.addr = p_hwfn->mcp_info->port_addr +
 803                     offsetof(struct public_port, operational_dcbx_mib);
 804         data.mib = &p_hwfn->p_dcbx_info->operational;
 805         data.size = sizeof(struct dcbx_mib);
 806         rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 807
 808         return rc;
 809 }
 810
 811 static int
 812 qed_dcbx_read_remote_mib(struct qed_hwfn *p_hwfn,
 813                          struct qed_ptt *p_ptt, enum qed_mib_read_type type)
 814 {
 815         struct qed_dcbx_mib_meta_data data;
 816         int rc = 0;
 817
 818         memset(&data, 0, sizeof(data));
 819         data.addr = p_hwfn->mcp_info->port_addr +
 820                     offsetof(struct public_port, remote_dcbx_mib);
 821         data.mib = &p_hwfn->p_dcbx_info->remote;
 822         data.size = sizeof(struct dcbx_mib);
 823         rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 824
 825         return rc;
 826 }
 827
 828 static int
 829 qed_dcbx_read_local_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 830 {
 831         struct qed_dcbx_mib_meta_data data;
 832         int rc = 0;
 833
 834         memset(&data, 0, sizeof(data));
 835         data.addr = p_hwfn->mcp_info->port_addr +
 836                     offsetof(struct public_port, local_admin_dcbx_mib);
 837         data.local_admin = &p_hwfn->p_dcbx_info->local_admin;
 838         data.size = sizeof(struct dcbx_local_params);
 839         qed_memcpy_from(p_hwfn, p_ptt, data.local_admin, data.addr, data.size);
 840
 841         return rc;
 842 }
 843
 844 static int qed_dcbx_read_mib(struct qed_hwfn *p_hwfn,
 845                              struct qed_ptt *p_ptt, enum qed_mib_read_type type)
 846 {
 847         int rc = -EINVAL;
 848
 849         switch (type) {
 850         case QED_DCBX_OPERATIONAL_MIB:
 851                 rc = qed_dcbx_read_operational_mib(p_hwfn, p_ptt, type);
 852                 break;
 853         case QED_DCBX_REMOTE_MIB:
 854                 rc = qed_dcbx_read_remote_mib(p_hwfn, p_ptt, type);
 855                 break;
 856         case QED_DCBX_LOCAL_MIB:
 857                 rc = qed_dcbx_read_local_mib(p_hwfn, p_ptt);
 858                 break;
 859         case QED_DCBX_REMOTE_LLDP_MIB:
 860                 rc = qed_dcbx_read_remote_lldp_mib(p_hwfn, p_ptt, type);
 861                 break;
 862         case QED_DCBX_LOCAL_LLDP_MIB:
 863                 rc = qed_dcbx_read_local_lldp_mib(p_hwfn, p_ptt);
 864                 break;
 865         default:
 866                 DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
 867         }
 868
 869         return rc;
 870 }
 871
 872 void qed_dcbx_aen(struct qed_hwfn *hwfn, u32 mib_type)
 873 {
 874         struct qed_common_cb_ops *op = hwfn->cdev->protocol_ops.common;
 875         void *cookie = hwfn->cdev->ops_cookie;
 876
 877         if (cookie && op->dcbx_aen)
 878                 op->dcbx_aen(cookie, &hwfn->p_dcbx_info->get, mib_type);
 879 }
 880
 881 /* Read updated MIB.
 882  * Reconfigure QM and invoke PF update ramrod command if operational MIB
 883  * change is detected.
 884  */
 885 int
 886 qed_dcbx_mib_update_event(struct qed_hwfn *p_hwfn,
 887                           struct qed_ptt *p_ptt, enum qed_mib_read_type type)
 888 {
 889         int rc = 0;
 890
 891         rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type);
 892         if (rc)
 893                 return rc;
 894
 895         if (type == QED_DCBX_OPERATIONAL_MIB) {
 896                 rc = qed_dcbx_process_mib_info(p_hwfn);
 897                 if (!rc) {
 898                         /* reconfigure tcs of QM queues according
 899                          * to negotiation results
 900                          */
 901                         qed_qm_reconf(p_hwfn, p_ptt);
 902
 903                         /* update storm FW with negotiation results */
 904                         qed_sp_pf_update(p_hwfn);
 905                 }
 906         }
 907
 908         qed_dcbx_get_params(p_hwfn, &p_hwfn->p_dcbx_info->get, type);
 909         qed_dcbx_aen(p_hwfn, type);
 910
 911         return rc;
 912 }
 913
 914 int qed_dcbx_info_alloc(struct qed_hwfn *p_hwfn)
 915 {
 916         p_hwfn->p_dcbx_info = kzalloc(sizeof(*p_hwfn->p_dcbx_info), GFP_KERNEL);
 917         if (!p_hwfn->p_dcbx_info)
 918                 return -ENOMEM;
 919
 920         return 0;
 921 }
 922
 923 void qed_dcbx_info_free(struct qed_hwfn *p_hwfn)
 924 {
 925         kfree(p_hwfn->p_dcbx_info);
 926 }
 927
 928 static void qed_dcbx_update_protocol_data(struct protocol_dcb_data *p_data,
 929                                           struct qed_dcbx_results *p_src,
 930                                           enum dcbx_protocol_type type)
 931 {
 932         p_data->dcb_enable_flag = p_src->arr[type].enable;
 933         p_data->dcb_priority = p_src->arr[type].priority;
 934         p_data->dcb_tc = p_src->arr[type].tc;
 935 }
 936
 937 /* Set pf update ramrod command params */
 938 void qed_dcbx_set_pf_update_params(struct qed_dcbx_results *p_src,
 939                                    struct pf_update_ramrod_data *p_dest)
 940 {
 941         struct protocol_dcb_data *p_dcb_data;
 942         bool update_flag = false;
 943
 944         p_dest->pf_id = p_src->pf_id;
 945
 946         update_flag = p_src->arr[DCBX_PROTOCOL_FCOE].update;
 947         p_dest->update_fcoe_dcb_data_flag = update_flag;
 948
 949         update_flag = p_src->arr[DCBX_PROTOCOL_ROCE].update;
 950         p_dest->update_roce_dcb_data_flag = update_flag;
 951         update_flag = p_src->arr[DCBX_PROTOCOL_ROCE_V2].update;
 952         p_dest->update_roce_dcb_data_flag = update_flag;
 953
 954         update_flag = p_src->arr[DCBX_PROTOCOL_ISCSI].update;
 955         p_dest->update_iscsi_dcb_data_flag = update_flag;
 956         update_flag = p_src->arr[DCBX_PROTOCOL_ETH].update;
 957         p_dest->update_eth_dcb_data_flag = update_flag;
 958
 959         p_dcb_data = &p_dest->fcoe_dcb_data;
 960         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_FCOE);
 961         p_dcb_data = &p_dest->roce_dcb_data;
 962         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ROCE);
 963         p_dcb_data = &p_dest->rroce_dcb_data;
 964         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ROCE_V2);
 965         p_dcb_data = &p_dest->iscsi_dcb_data;
 966         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ISCSI);
 967         p_dcb_data = &p_dest->eth_dcb_data;
 968         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ETH);
 969 }
 970
 971 #ifdef CONFIG_DCB
 972 static int qed_dcbx_query_params(struct qed_hwfn *p_hwfn,
 973                                  struct qed_dcbx_get *p_get,
 974                                  enum qed_mib_read_type type)
 975 {
 976         struct qed_ptt *p_ptt;
 977         int rc;
 978
 979         if (IS_VF(p_hwfn->cdev))
 980                 return -EINVAL;
 981
 982         p_ptt = qed_ptt_acquire(p_hwfn);
 983         if (!p_ptt)
 984                 return -EBUSY;
 985
 986         rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type);
 987         if (rc)
 988                 goto out;
 989
 990         rc = qed_dcbx_get_params(p_hwfn, p_get, type);
 991
 992 out:
 993         qed_ptt_release(p_hwfn, p_ptt);
 994         return rc;
 995 }
 996
 997 static void
 998 qed_dcbx_set_pfc_data(struct qed_hwfn *p_hwfn,
 999                       u32 *pfc, struct qed_dcbx_params *p_params)
1000 {
1001         u8 pfc_map = 0;
1002         int i;
1003
1004         *pfc &= ~DCBX_PFC_ERROR_MASK;
1005
1006         if (p_params->pfc.willing)
1007                 *pfc |= DCBX_PFC_WILLING_MASK;
1008         else
1009                 *pfc &= ~DCBX_PFC_WILLING_MASK;
1010
1011         if (p_params->pfc.enabled)
1012                 *pfc |= DCBX_PFC_ENABLED_MASK;
1013         else
1014                 *pfc &= ~DCBX_PFC_ENABLED_MASK;
1015
1016         *pfc &= ~DCBX_PFC_CAPS_MASK;
1017         *pfc |= (u32)p_params->pfc.max_tc << DCBX_PFC_CAPS_SHIFT;
1018
1019         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
1020                 if (p_params->pfc.prio[i])
1021                         pfc_map |= BIT(i);
1022
1023         *pfc &= ~DCBX_PFC_PRI_EN_BITMAP_MASK;
1024         *pfc |= (pfc_map << DCBX_PFC_PRI_EN_BITMAP_SHIFT);
1025
1026         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "pfc = 0x%x\n", *pfc);
1027 }
1028
1029 static void
1030 qed_dcbx_set_ets_data(struct qed_hwfn *p_hwfn,
1031                       struct dcbx_ets_feature *p_ets,
1032                       struct qed_dcbx_params *p_params)
1033 {
1034         u8 *bw_map, *tsa_map;
1035         u32 val;
1036         int i;
1037
1038         if (p_params->ets_willing)
1039                 p_ets->flags |= DCBX_ETS_WILLING_MASK;
1040         else
1041                 p_ets->flags &= ~DCBX_ETS_WILLING_MASK;
1042
1043         if (p_params->ets_cbs)
1044                 p_ets->flags |= DCBX_ETS_CBS_MASK;
1045         else
1046                 p_ets->flags &= ~DCBX_ETS_CBS_MASK;
1047
1048         if (p_params->ets_enabled)
1049                 p_ets->flags |= DCBX_ETS_ENABLED_MASK;
1050         else
1051                 p_ets->flags &= ~DCBX_ETS_ENABLED_MASK;
1052
1053         p_ets->flags &= ~DCBX_ETS_MAX_TCS_MASK;
1054         p_ets->flags |= (u32)p_params->max_ets_tc << DCBX_ETS_MAX_TCS_SHIFT;
1055
1056         bw_map = (u8 *)&p_ets->tc_bw_tbl[0];
1057         tsa_map = (u8 *)&p_ets->tc_tsa_tbl[0];
1058         p_ets->pri_tc_tbl[0] = 0;
1059         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
1060                 bw_map[i] = p_params->ets_tc_bw_tbl[i];
1061                 tsa_map[i] = p_params->ets_tc_tsa_tbl[i];
1062                 /* Copy the priority value to the corresponding 4 bits in the
1063                  * traffic class table.
1064                  */
1065                 val = (((u32)p_params->ets_pri_tc_tbl[i]) << ((7 - i) * 4));
1066                 p_ets->pri_tc_tbl[0] |= val;
1067         }
1068         for (i = 0; i < 2; i++) {
1069                 p_ets->tc_bw_tbl[i] = cpu_to_be32(p_ets->tc_bw_tbl[i]);
1070                 p_ets->tc_tsa_tbl[i] = cpu_to_be32(p_ets->tc_tsa_tbl[i]);
1071         }
1072 }
1073
1074 static void
1075 qed_dcbx_set_app_data(struct qed_hwfn *p_hwfn,
1076                       struct dcbx_app_priority_feature *p_app,
1077                       struct qed_dcbx_params *p_params, bool ieee)
1078 {
1079         u32 *entry;
1080         int i;
1081
1082         if (p_params->app_willing)
1083                 p_app->flags |= DCBX_APP_WILLING_MASK;
1084         else
1085                 p_app->flags &= ~DCBX_APP_WILLING_MASK;
1086
1087         if (p_params->app_valid)
1088                 p_app->flags |= DCBX_APP_ENABLED_MASK;
1089         else
1090                 p_app->flags &= ~DCBX_APP_ENABLED_MASK;
1091
1092         p_app->flags &= ~DCBX_APP_NUM_ENTRIES_MASK;
1093         p_app->flags |= (u32)p_params->num_app_entries <<
1094             DCBX_APP_NUM_ENTRIES_SHIFT;
1095
1096         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
1097                 entry = &p_app->app_pri_tbl[i].entry;
1098                 *entry = 0;
1099                 if (ieee) {
1100                         *entry &= ~(DCBX_APP_SF_IEEE_MASK | DCBX_APP_SF_MASK);
1101                         switch (p_params->app_entry[i].sf_ieee) {
1102                         case QED_DCBX_SF_IEEE_ETHTYPE:
1103                                 *entry |= ((u32)DCBX_APP_SF_IEEE_ETHTYPE <<
1104                                            DCBX_APP_SF_IEEE_SHIFT);
1105                                 *entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
1106                                            DCBX_APP_SF_SHIFT);
1107                                 break;
1108                         case QED_DCBX_SF_IEEE_TCP_PORT:
1109                                 *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_PORT <<
1110                                            DCBX_APP_SF_IEEE_SHIFT);
1111                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1112                                            DCBX_APP_SF_SHIFT);
1113                                 break;
1114                         case QED_DCBX_SF_IEEE_UDP_PORT:
1115                                 *entry |= ((u32)DCBX_APP_SF_IEEE_UDP_PORT <<
1116                                            DCBX_APP_SF_IEEE_SHIFT);
1117                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1118                                            DCBX_APP_SF_SHIFT);
1119                                 break;
1120                         case QED_DCBX_SF_IEEE_TCP_UDP_PORT:
1121                                 *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_UDP_PORT <<
1122                                            DCBX_APP_SF_IEEE_SHIFT);
1123                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1124                                            DCBX_APP_SF_SHIFT);
1125                                 break;
1126                         }
1127                 } else {
1128                         *entry &= ~DCBX_APP_SF_MASK;
1129                         if (p_params->app_entry[i].ethtype)
1130                                 *entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
1131                                            DCBX_APP_SF_SHIFT);
1132                         else
1133                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1134                                            DCBX_APP_SF_SHIFT);
1135                 }
1136
1137                 *entry &= ~DCBX_APP_PROTOCOL_ID_MASK;
1138                 *entry |= ((u32)p_params->app_entry[i].proto_id <<
1139                            DCBX_APP_PROTOCOL_ID_SHIFT);
1140                 *entry &= ~DCBX_APP_PRI_MAP_MASK;
1141                 *entry |= ((u32)(p_params->app_entry[i].prio) <<
1142                            DCBX_APP_PRI_MAP_SHIFT);
1143         }
1144 }
1145
1146 static void
1147 qed_dcbx_set_local_params(struct qed_hwfn *p_hwfn,
1148                           struct dcbx_local_params *local_admin,
1149                           struct qed_dcbx_set *params)
1150 {
1151         bool ieee = false;
1152
1153         local_admin->flags = 0;
1154         memcpy(&local_admin->features,
1155                &p_hwfn->p_dcbx_info->operational.features,
1156                sizeof(local_admin->features));
1157
1158         if (params->enabled) {
1159                 local_admin->config = params->ver_num;
1160                 ieee = !!(params->ver_num & DCBX_CONFIG_VERSION_IEEE);
1161         } else {
1162                 local_admin->config = DCBX_CONFIG_VERSION_DISABLED;
1163         }
1164
1165         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Dcbx version = %d\n",
1166                    local_admin->config);
1167
1168         if (params->override_flags & QED_DCBX_OVERRIDE_PFC_CFG)
1169                 qed_dcbx_set_pfc_data(p_hwfn, &local_admin->features.pfc,
1170                                       &params->config.params);
1171
1172         if (params->override_flags & QED_DCBX_OVERRIDE_ETS_CFG)
1173                 qed_dcbx_set_ets_data(p_hwfn, &local_admin->features.ets,
1174                                       &params->config.params);
1175
1176         if (params->override_flags & QED_DCBX_OVERRIDE_APP_CFG)
1177                 qed_dcbx_set_app_data(p_hwfn, &local_admin->features.app,
1178                                       &params->config.params, ieee);
1179 }
1180
1181 int qed_dcbx_config_params(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
1182                            struct qed_dcbx_set *params, bool hw_commit)
1183 {
1184         struct dcbx_local_params local_admin;
1185         struct qed_dcbx_mib_meta_data data;
1186         u32 resp = 0, param = 0;
1187         int rc = 0;
1188
1189         if (!hw_commit) {
1190                 memcpy(&p_hwfn->p_dcbx_info->set, params,
1191                        sizeof(struct qed_dcbx_set));
1192                 return 0;
1193         }
1194
1195         /* clear set-parmas cache */
1196         memset(&p_hwfn->p_dcbx_info->set, 0, sizeof(p_hwfn->p_dcbx_info->set));
1197
1198         memset(&local_admin, 0, sizeof(local_admin));
1199         qed_dcbx_set_local_params(p_hwfn, &local_admin, params);
1200
1201         data.addr = p_hwfn->mcp_info->port_addr +
1202             offsetof(struct public_port, local_admin_dcbx_mib);
1203         data.local_admin = &local_admin;
1204         data.size = sizeof(struct dcbx_local_params);
1205         qed_memcpy_to(p_hwfn, p_ptt, data.addr, data.local_admin, data.size);
1206
1207         rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_SET_DCBX,
1208                          1 << DRV_MB_PARAM_LLDP_SEND_SHIFT, &resp, &param);
1209         if (rc)
1210                 DP_NOTICE(p_hwfn, "Failed to send DCBX update request\n");
1211
1212         return rc;
1213 }
1214
1215 int qed_dcbx_get_config_params(struct qed_hwfn *p_hwfn,
1216                                struct qed_dcbx_set *params)
1217 {
1218         struct qed_dcbx_get *dcbx_info;
1219         int rc;
1220
1221         if (p_hwfn->p_dcbx_info->set.config.valid) {
1222                 memcpy(params, &p_hwfn->p_dcbx_info->set,
1223                        sizeof(struct qed_dcbx_set));
1224                 return 0;
1225         }
1226
1227         dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_KERNEL);
1228         if (!dcbx_info)
1229                 return -ENOMEM;
1230
1231         memset(dcbx_info, 0, sizeof(*dcbx_info));
1232         rc = qed_dcbx_query_params(p_hwfn, dcbx_info, QED_DCBX_OPERATIONAL_MIB);
1233         if (rc) {
1234                 kfree(dcbx_info);
1235                 return rc;
1236         }
1237
1238         p_hwfn->p_dcbx_info->set.override_flags = 0;
1239         p_hwfn->p_dcbx_info->set.ver_num = DCBX_CONFIG_VERSION_DISABLED;
1240         if (dcbx_info->operational.cee)
1241                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1242         if (dcbx_info->operational.ieee)
1243                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1244         if (dcbx_info->operational.local)
1245                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_STATIC;
1246
1247         p_hwfn->p_dcbx_info->set.enabled = dcbx_info->operational.enabled;
1248         memcpy(&p_hwfn->p_dcbx_info->set.config.params,
1249                &dcbx_info->operational.params,
1250                sizeof(struct qed_dcbx_admin_params));
1251         p_hwfn->p_dcbx_info->set.config.valid = true;
1252
1253         memcpy(params, &p_hwfn->p_dcbx_info->set, sizeof(struct qed_dcbx_set));
1254
1255         kfree(dcbx_info);
1256
1257         return 0;
1258 }
1259
1260 static struct qed_dcbx_get *qed_dcbnl_get_dcbx(struct qed_hwfn *hwfn,
1261                                                enum qed_mib_read_type type)
1262 {
1263         struct qed_dcbx_get *dcbx_info;
1264
1265         dcbx_info = kmalloc(sizeof(*dcbx_info), GFP_ATOMIC);
1266         if (!dcbx_info)
1267                 return NULL;
1268
1269         memset(dcbx_info, 0, sizeof(*dcbx_info));
1270         if (qed_dcbx_query_params(hwfn, dcbx_info, type)) {
1271                 kfree(dcbx_info);
1272                 return NULL;
1273         }
1274
1275         if ((type == QED_DCBX_OPERATIONAL_MIB) &&
1276             !dcbx_info->operational.enabled) {
1277                 DP_INFO(hwfn, "DCBX is not enabled/operational\n");
1278                 kfree(dcbx_info);
1279                 return NULL;
1280         }
1281
1282         return dcbx_info;
1283 }
1284
1285 static u8 qed_dcbnl_getstate(struct qed_dev *cdev)
1286 {
1287         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1288         struct qed_dcbx_get *dcbx_info;
1289         bool enabled;
1290
1291         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1292         if (!dcbx_info)
1293                 return 0;
1294
1295         enabled = dcbx_info->operational.enabled;
1296         DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", enabled);
1297         kfree(dcbx_info);
1298
1299         return enabled;
1300 }
1301
1302 static u8 qed_dcbnl_setstate(struct qed_dev *cdev, u8 state)
1303 {
1304         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1305         struct qed_dcbx_set dcbx_set;
1306         struct qed_ptt *ptt;
1307         int rc;
1308
1309         DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", state);
1310
1311         memset(&dcbx_set, 0, sizeof(dcbx_set));
1312         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1313         if (rc)
1314                 return 1;
1315
1316         dcbx_set.enabled = !!state;
1317
1318         ptt = qed_ptt_acquire(hwfn);
1319         if (!ptt)
1320                 return 1;
1321
1322         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1323
1324         qed_ptt_release(hwfn, ptt);
1325
1326         return rc ? 1 : 0;
1327 }
1328
1329 static void qed_dcbnl_getpgtccfgtx(struct qed_dev *cdev, int tc, u8 *prio_type,
1330                                    u8 *pgid, u8 *bw_pct, u8 *up_map)
1331 {
1332         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1333         struct qed_dcbx_get *dcbx_info;
1334
1335         DP_VERBOSE(hwfn, QED_MSG_DCB, "tc = %d\n", tc);
1336         *prio_type = *pgid = *bw_pct = *up_map = 0;
1337         if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
1338                 DP_INFO(hwfn, "Invalid tc %d\n", tc);
1339                 return;
1340         }
1341
1342         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1343         if (!dcbx_info)
1344                 return;
1345
1346         *pgid = dcbx_info->operational.params.ets_pri_tc_tbl[tc];
1347         kfree(dcbx_info);
1348 }
1349
1350 static void qed_dcbnl_getpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 *bw_pct)
1351 {
1352         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1353         struct qed_dcbx_get *dcbx_info;
1354
1355         *bw_pct = 0;
1356         DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d\n", pgid);
1357         if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
1358                 DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
1359                 return;
1360         }
1361
1362         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1363         if (!dcbx_info)
1364                 return;
1365
1366         *bw_pct = dcbx_info->operational.params.ets_tc_bw_tbl[pgid];
1367         DP_VERBOSE(hwfn, QED_MSG_DCB, "bw_pct = %d\n", *bw_pct);
1368         kfree(dcbx_info);
1369 }
1370
1371 static void qed_dcbnl_getpgtccfgrx(struct qed_dev *cdev, int tc, u8 *prio,
1372                                    u8 *bwg_id, u8 *bw_pct, u8 *up_map)
1373 {
1374         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1375         *prio = *bwg_id = *bw_pct = *up_map = 0;
1376 }
1377
1378 static void qed_dcbnl_getpgbwgcfgrx(struct qed_dev *cdev,
1379                                     int bwg_id, u8 *bw_pct)
1380 {
1381         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1382         *bw_pct = 0;
1383 }
1384
1385 static void qed_dcbnl_getpfccfg(struct qed_dev *cdev,
1386                                 int priority, u8 *setting)
1387 {
1388         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1389         struct qed_dcbx_get *dcbx_info;
1390
1391         DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d\n", priority);
1392         if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
1393                 DP_INFO(hwfn, "Invalid priority %d\n", priority);
1394                 return;
1395         }
1396
1397         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1398         if (!dcbx_info)
1399                 return;
1400
1401         *setting = dcbx_info->operational.params.pfc.prio[priority];
1402         DP_VERBOSE(hwfn, QED_MSG_DCB, "setting = %d\n", *setting);
1403         kfree(dcbx_info);
1404 }
1405
1406 static void qed_dcbnl_setpfccfg(struct qed_dev *cdev, int priority, u8 setting)
1407 {
1408         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1409         struct qed_dcbx_set dcbx_set;
1410         struct qed_ptt *ptt;
1411         int rc;
1412
1413         DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d setting = %d\n",
1414                    priority, setting);
1415         if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
1416                 DP_INFO(hwfn, "Invalid priority %d\n", priority);
1417                 return;
1418         }
1419
1420         memset(&dcbx_set, 0, sizeof(dcbx_set));
1421         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1422         if (rc)
1423                 return;
1424
1425         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1426         dcbx_set.config.params.pfc.prio[priority] = !!setting;
1427
1428         ptt = qed_ptt_acquire(hwfn);
1429         if (!ptt)
1430                 return;
1431
1432         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1433
1434         qed_ptt_release(hwfn, ptt);
1435 }
1436
1437 static u8 qed_dcbnl_getcap(struct qed_dev *cdev, int capid, u8 *cap)
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, "capid = %d\n", capid);
1444         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1445         if (!dcbx_info)
1446                 return 1;
1447
1448         switch (capid) {
1449         case DCB_CAP_ATTR_PG:
1450         case DCB_CAP_ATTR_PFC:
1451         case DCB_CAP_ATTR_UP2TC:
1452         case DCB_CAP_ATTR_GSP:
1453                 *cap = true;
1454                 break;
1455         case DCB_CAP_ATTR_PG_TCS:
1456         case DCB_CAP_ATTR_PFC_TCS:
1457                 *cap = 0x80;
1458                 break;
1459         case DCB_CAP_ATTR_DCBX:
1460                 *cap = (DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_CEE |
1461                         DCB_CAP_DCBX_VER_IEEE);
1462                 break;
1463         default:
1464                 *cap = false;
1465                 rc = 1;
1466         }
1467
1468         DP_VERBOSE(hwfn, QED_MSG_DCB, "id = %d caps = %d\n", capid, *cap);
1469         kfree(dcbx_info);
1470
1471         return rc;
1472 }
1473
1474 static int qed_dcbnl_getnumtcs(struct qed_dev *cdev, int tcid, u8 *num)
1475 {
1476         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1477         struct qed_dcbx_get *dcbx_info;
1478         int rc = 0;
1479
1480         DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d\n", tcid);
1481         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1482         if (!dcbx_info)
1483                 return -EINVAL;
1484
1485         switch (tcid) {
1486         case DCB_NUMTCS_ATTR_PG:
1487                 *num = dcbx_info->operational.params.max_ets_tc;
1488                 break;
1489         case DCB_NUMTCS_ATTR_PFC:
1490                 *num = dcbx_info->operational.params.pfc.max_tc;
1491                 break;
1492         default:
1493                 rc = -EINVAL;
1494         }
1495
1496         kfree(dcbx_info);
1497         DP_VERBOSE(hwfn, QED_MSG_DCB, "numtcs = %d\n", *num);
1498
1499         return rc;
1500 }
1501
1502 static u8 qed_dcbnl_getpfcstate(struct qed_dev *cdev)
1503 {
1504         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1505         struct qed_dcbx_get *dcbx_info;
1506         bool enabled;
1507
1508         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1509         if (!dcbx_info)
1510                 return 0;
1511
1512         enabled = dcbx_info->operational.params.pfc.enabled;
1513         DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d\n", enabled);
1514         kfree(dcbx_info);
1515
1516         return enabled;
1517 }
1518
1519 static u8 qed_dcbnl_getdcbx(struct qed_dev *cdev)
1520 {
1521         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1522         struct qed_dcbx_get *dcbx_info;
1523         u8 mode = 0;
1524
1525         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1526         if (!dcbx_info)
1527                 return 0;
1528
1529         if (dcbx_info->operational.enabled)
1530                 mode |= DCB_CAP_DCBX_LLD_MANAGED;
1531         if (dcbx_info->operational.ieee)
1532                 mode |= DCB_CAP_DCBX_VER_IEEE;
1533         if (dcbx_info->operational.cee)
1534                 mode |= DCB_CAP_DCBX_VER_CEE;
1535
1536         DP_VERBOSE(hwfn, QED_MSG_DCB, "dcb mode = %d\n", mode);
1537         kfree(dcbx_info);
1538
1539         return mode;
1540 }
1541
1542 static void qed_dcbnl_setpgtccfgtx(struct qed_dev *cdev,
1543                                    int tc,
1544                                    u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
1545 {
1546         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1547         struct qed_dcbx_set dcbx_set;
1548         struct qed_ptt *ptt;
1549         int rc;
1550
1551         DP_VERBOSE(hwfn, QED_MSG_DCB,
1552                    "tc = %d pri_type = %d pgid = %d bw_pct = %d up_map = %d\n",
1553                    tc, pri_type, pgid, bw_pct, up_map);
1554
1555         if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
1556                 DP_INFO(hwfn, "Invalid tc %d\n", tc);
1557                 return;
1558         }
1559
1560         memset(&dcbx_set, 0, sizeof(dcbx_set));
1561         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1562         if (rc)
1563                 return;
1564
1565         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1566         dcbx_set.config.params.ets_pri_tc_tbl[tc] = pgid;
1567
1568         ptt = qed_ptt_acquire(hwfn);
1569         if (!ptt)
1570                 return;
1571
1572         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1573
1574         qed_ptt_release(hwfn, ptt);
1575 }
1576
1577 static void qed_dcbnl_setpgtccfgrx(struct qed_dev *cdev, int prio,
1578                                    u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
1579 {
1580         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1581 }
1582
1583 static void qed_dcbnl_setpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 bw_pct)
1584 {
1585         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1586         struct qed_dcbx_set dcbx_set;
1587         struct qed_ptt *ptt;
1588         int rc;
1589
1590         DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d bw_pct = %d\n", pgid, bw_pct);
1591         if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
1592                 DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
1593                 return;
1594         }
1595
1596         memset(&dcbx_set, 0, sizeof(dcbx_set));
1597         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1598         if (rc)
1599                 return;
1600
1601         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1602         dcbx_set.config.params.ets_tc_bw_tbl[pgid] = bw_pct;
1603
1604         ptt = qed_ptt_acquire(hwfn);
1605         if (!ptt)
1606                 return;
1607
1608         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1609
1610         qed_ptt_release(hwfn, ptt);
1611 }
1612
1613 static void qed_dcbnl_setpgbwgcfgrx(struct qed_dev *cdev, int pgid, u8 bw_pct)
1614 {
1615         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1616 }
1617
1618 static u8 qed_dcbnl_setall(struct qed_dev *cdev)
1619 {
1620         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1621         struct qed_dcbx_set dcbx_set;
1622         struct qed_ptt *ptt;
1623         int rc;
1624
1625         memset(&dcbx_set, 0, sizeof(dcbx_set));
1626         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1627         if (rc)
1628                 return 1;
1629
1630         ptt = qed_ptt_acquire(hwfn);
1631         if (!ptt)
1632                 return 1;
1633
1634         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 1);
1635
1636         qed_ptt_release(hwfn, ptt);
1637
1638         return rc;
1639 }
1640
1641 static int qed_dcbnl_setnumtcs(struct qed_dev *cdev, int tcid, u8 num)
1642 {
1643         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1644         struct qed_dcbx_set dcbx_set;
1645         struct qed_ptt *ptt;
1646         int rc;
1647
1648         DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d num = %d\n", tcid, num);
1649         memset(&dcbx_set, 0, sizeof(dcbx_set));
1650         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1651         if (rc)
1652                 return 1;
1653
1654         switch (tcid) {
1655         case DCB_NUMTCS_ATTR_PG:
1656                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1657                 dcbx_set.config.params.max_ets_tc = num;
1658                 break;
1659         case DCB_NUMTCS_ATTR_PFC:
1660                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1661                 dcbx_set.config.params.pfc.max_tc = num;
1662                 break;
1663         default:
1664                 DP_INFO(hwfn, "Invalid tcid %d\n", tcid);
1665                 return -EINVAL;
1666         }
1667
1668         ptt = qed_ptt_acquire(hwfn);
1669         if (!ptt)
1670                 return -EINVAL;
1671
1672         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1673
1674         qed_ptt_release(hwfn, ptt);
1675
1676         return 0;
1677 }
1678
1679 static void qed_dcbnl_setpfcstate(struct qed_dev *cdev, u8 state)
1680 {
1681         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1682         struct qed_dcbx_set dcbx_set;
1683         struct qed_ptt *ptt;
1684         int rc;
1685
1686         DP_VERBOSE(hwfn, QED_MSG_DCB, "new state = %d\n", state);
1687
1688         memset(&dcbx_set, 0, sizeof(dcbx_set));
1689         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1690         if (rc)
1691                 return;
1692
1693         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1694         dcbx_set.config.params.pfc.enabled = !!state;
1695
1696         ptt = qed_ptt_acquire(hwfn);
1697         if (!ptt)
1698                 return;
1699
1700         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1701
1702         qed_ptt_release(hwfn, ptt);
1703 }
1704
1705 static int qed_dcbnl_getapp(struct qed_dev *cdev, u8 idtype, u16 idval)
1706 {
1707         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1708         struct qed_dcbx_get *dcbx_info;
1709         struct qed_app_entry *entry;
1710         bool ethtype;
1711         u8 prio = 0;
1712         int i;
1713
1714         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1715         if (!dcbx_info)
1716                 return -EINVAL;
1717
1718         ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
1719         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
1720                 entry = &dcbx_info->operational.params.app_entry[i];
1721                 if ((entry->ethtype == ethtype) && (entry->proto_id == idval)) {
1722                         prio = entry->prio;
1723                         break;
1724                 }
1725         }
1726
1727         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
1728                 DP_ERR(cdev, "App entry (%d, %d) not found\n", idtype, idval);
1729                 kfree(dcbx_info);
1730                 return -EINVAL;
1731         }
1732
1733         kfree(dcbx_info);
1734
1735         return prio;
1736 }
1737
1738 static int qed_dcbnl_setapp(struct qed_dev *cdev,
1739                             u8 idtype, u16 idval, u8 pri_map)
1740 {
1741         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1742         struct qed_dcbx_set dcbx_set;
1743         struct qed_app_entry *entry;
1744         struct qed_ptt *ptt;
1745         bool ethtype;
1746         int rc, i;
1747
1748         memset(&dcbx_set, 0, sizeof(dcbx_set));
1749         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1750         if (rc)
1751                 return -EINVAL;
1752
1753         ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
1754         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
1755                 entry = &dcbx_set.config.params.app_entry[i];
1756                 if ((entry->ethtype == ethtype) && (entry->proto_id == idval))
1757                         break;
1758                 /* First empty slot */
1759                 if (!entry->proto_id) {
1760                         dcbx_set.config.params.num_app_entries++;
1761                         break;
1762                 }
1763         }
1764
1765         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
1766                 DP_ERR(cdev, "App table is full\n");
1767                 return -EBUSY;
1768         }
1769
1770         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
1771         dcbx_set.config.params.app_entry[i].ethtype = ethtype;
1772         dcbx_set.config.params.app_entry[i].proto_id = idval;
1773         dcbx_set.config.params.app_entry[i].prio = pri_map;
1774
1775         ptt = qed_ptt_acquire(hwfn);
1776         if (!ptt)
1777                 return -EBUSY;
1778
1779         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1780
1781         qed_ptt_release(hwfn, ptt);
1782
1783         return rc;
1784 }
1785
1786 static u8 qed_dcbnl_setdcbx(struct qed_dev *cdev, u8 mode)
1787 {
1788         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1789         struct qed_dcbx_set dcbx_set;
1790         struct qed_ptt *ptt;
1791         int rc;
1792
1793         DP_VERBOSE(hwfn, QED_MSG_DCB, "new mode = %x\n", mode);
1794
1795         if (!(mode & DCB_CAP_DCBX_VER_IEEE) &&
1796             !(mode & DCB_CAP_DCBX_VER_CEE) && !(mode & DCB_CAP_DCBX_STATIC)) {
1797                 DP_INFO(hwfn, "Allowed modes are cee, ieee or static\n");
1798                 return 1;
1799         }
1800
1801         memset(&dcbx_set, 0, sizeof(dcbx_set));
1802         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1803         if (rc)
1804                 return 1;
1805
1806         dcbx_set.ver_num = 0;
1807         if (mode & DCB_CAP_DCBX_VER_CEE) {
1808                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1809                 dcbx_set.enabled = true;
1810         }
1811
1812         if (mode & DCB_CAP_DCBX_VER_IEEE) {
1813                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1814                 dcbx_set.enabled = true;
1815         }
1816
1817         if (mode & DCB_CAP_DCBX_STATIC) {
1818                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_STATIC;
1819                 dcbx_set.enabled = true;
1820         }
1821
1822         ptt = qed_ptt_acquire(hwfn);
1823         if (!ptt)
1824                 return 1;
1825
1826         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1827
1828         qed_ptt_release(hwfn, ptt);
1829
1830         return rc;
1831 }
1832
1833 static u8 qed_dcbnl_getfeatcfg(struct qed_dev *cdev, int featid, u8 *flags)
1834 {
1835         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1836         struct qed_dcbx_get *dcbx_info;
1837
1838         DP_VERBOSE(hwfn, QED_MSG_DCB, "Feature id  = %d\n", featid);
1839         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1840         if (!dcbx_info)
1841                 return 1;
1842
1843         *flags = 0;
1844         switch (featid) {
1845         case DCB_FEATCFG_ATTR_PG:
1846                 if (dcbx_info->operational.params.ets_enabled)
1847                         *flags = DCB_FEATCFG_ENABLE;
1848                 else
1849                         *flags = DCB_FEATCFG_ERROR;
1850                 break;
1851         case DCB_FEATCFG_ATTR_PFC:
1852                 if (dcbx_info->operational.params.pfc.enabled)
1853                         *flags = DCB_FEATCFG_ENABLE;
1854                 else
1855                         *flags = DCB_FEATCFG_ERROR;
1856                 break;
1857         case DCB_FEATCFG_ATTR_APP:
1858                 if (dcbx_info->operational.params.app_valid)
1859                         *flags = DCB_FEATCFG_ENABLE;
1860                 else
1861                         *flags = DCB_FEATCFG_ERROR;
1862                 break;
1863         default:
1864                 DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
1865                 kfree(dcbx_info);
1866                 return 1;
1867         }
1868
1869         DP_VERBOSE(hwfn, QED_MSG_DCB, "flags = %d\n", *flags);
1870         kfree(dcbx_info);
1871
1872         return 0;
1873 }
1874
1875 static u8 qed_dcbnl_setfeatcfg(struct qed_dev *cdev, int featid, u8 flags)
1876 {
1877         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1878         struct qed_dcbx_set dcbx_set;
1879         bool enabled, willing;
1880         struct qed_ptt *ptt;
1881         int rc;
1882
1883         DP_VERBOSE(hwfn, QED_MSG_DCB, "featid = %d flags = %d\n",
1884                    featid, flags);
1885         memset(&dcbx_set, 0, sizeof(dcbx_set));
1886         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1887         if (rc)
1888                 return 1;
1889
1890         enabled = !!(flags & DCB_FEATCFG_ENABLE);
1891         willing = !!(flags & DCB_FEATCFG_WILLING);
1892         switch (featid) {
1893         case DCB_FEATCFG_ATTR_PG:
1894                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1895                 dcbx_set.config.params.ets_enabled = enabled;
1896                 dcbx_set.config.params.ets_willing = willing;
1897                 break;
1898         case DCB_FEATCFG_ATTR_PFC:
1899                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1900                 dcbx_set.config.params.pfc.enabled = enabled;
1901                 dcbx_set.config.params.pfc.willing = willing;
1902                 break;
1903         case DCB_FEATCFG_ATTR_APP:
1904                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
1905                 dcbx_set.config.params.app_willing = willing;
1906                 break;
1907         default:
1908                 DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
1909                 return 1;
1910         }
1911
1912         ptt = qed_ptt_acquire(hwfn);
1913         if (!ptt)
1914                 return 1;
1915
1916         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1917
1918         qed_ptt_release(hwfn, ptt);
1919
1920         return 0;
1921 }
1922
1923 static int qed_dcbnl_peer_getappinfo(struct qed_dev *cdev,
1924                                      struct dcb_peer_app_info *info,
1925                                      u16 *app_count)
1926 {
1927         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1928         struct qed_dcbx_get *dcbx_info;
1929
1930         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1931         if (!dcbx_info)
1932                 return -EINVAL;
1933
1934         info->willing = dcbx_info->remote.params.app_willing;
1935         info->error = dcbx_info->remote.params.app_error;
1936         *app_count = dcbx_info->remote.params.num_app_entries;
1937         kfree(dcbx_info);
1938
1939         return 0;
1940 }
1941
1942 static int qed_dcbnl_peer_getapptable(struct qed_dev *cdev,
1943                                       struct dcb_app *table)
1944 {
1945         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1946         struct qed_dcbx_get *dcbx_info;
1947         int i;
1948
1949         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1950         if (!dcbx_info)
1951                 return -EINVAL;
1952
1953         for (i = 0; i < dcbx_info->remote.params.num_app_entries; i++) {
1954                 if (dcbx_info->remote.params.app_entry[i].ethtype)
1955                         table[i].selector = DCB_APP_IDTYPE_ETHTYPE;
1956                 else
1957                         table[i].selector = DCB_APP_IDTYPE_PORTNUM;
1958                 table[i].priority = dcbx_info->remote.params.app_entry[i].prio;
1959                 table[i].protocol =
1960                     dcbx_info->remote.params.app_entry[i].proto_id;
1961         }
1962
1963         kfree(dcbx_info);
1964
1965         return 0;
1966 }
1967
1968 static int qed_dcbnl_cee_peer_getpfc(struct qed_dev *cdev, struct cee_pfc *pfc)
1969 {
1970         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1971         struct qed_dcbx_get *dcbx_info;
1972         int i;
1973
1974         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1975         if (!dcbx_info)
1976                 return -EINVAL;
1977
1978         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
1979                 if (dcbx_info->remote.params.pfc.prio[i])
1980                         pfc->pfc_en |= BIT(i);
1981
1982         pfc->tcs_supported = dcbx_info->remote.params.pfc.max_tc;
1983         DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d tcs_supported = %d\n",
1984                    pfc->pfc_en, pfc->tcs_supported);
1985         kfree(dcbx_info);
1986
1987         return 0;
1988 }
1989
1990 static int qed_dcbnl_cee_peer_getpg(struct qed_dev *cdev, struct cee_pg *pg)
1991 {
1992         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1993         struct qed_dcbx_get *dcbx_info;
1994         int i;
1995
1996         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1997         if (!dcbx_info)
1998                 return -EINVAL;
1999
2000         pg->willing = dcbx_info->remote.params.ets_willing;
2001         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
2002                 pg->pg_bw[i] = dcbx_info->remote.params.ets_tc_bw_tbl[i];
2003                 pg->prio_pg[i] = dcbx_info->remote.params.ets_pri_tc_tbl[i];
2004         }
2005
2006         DP_VERBOSE(hwfn, QED_MSG_DCB, "willing = %d", pg->willing);
2007         kfree(dcbx_info);
2008
2009         return 0;
2010 }
2011
2012 static int qed_dcbnl_get_ieee_pfc(struct qed_dev *cdev,
2013                                   struct ieee_pfc *pfc, bool remote)
2014 {
2015         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2016         struct qed_dcbx_params *params;
2017         struct qed_dcbx_get *dcbx_info;
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         if (remote) {
2031                 memset(dcbx_info, 0, sizeof(*dcbx_info));
2032                 rc = qed_dcbx_query_params(hwfn, dcbx_info,
2033                                            QED_DCBX_REMOTE_MIB);
2034                 if (rc) {
2035                         kfree(dcbx_info);
2036                         return -EINVAL;
2037                 }
2038
2039                 params = &dcbx_info->remote.params;
2040         } else {
2041                 params = &dcbx_info->operational.params;
2042         }
2043
2044         pfc->pfc_cap = params->pfc.max_tc;
2045         pfc->pfc_en = 0;
2046         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2047                 if (params->pfc.prio[i])
2048                         pfc->pfc_en |= BIT(i);
2049
2050         kfree(dcbx_info);
2051
2052         return 0;
2053 }
2054
2055 static int qed_dcbnl_ieee_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2056 {
2057         return qed_dcbnl_get_ieee_pfc(cdev, pfc, false);
2058 }
2059
2060 static int qed_dcbnl_ieee_setpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2061 {
2062         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2063         struct qed_dcbx_get *dcbx_info;
2064         struct qed_dcbx_set dcbx_set;
2065         struct qed_ptt *ptt;
2066         int rc, i;
2067
2068         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2069         if (!dcbx_info)
2070                 return -EINVAL;
2071
2072         if (!dcbx_info->operational.ieee) {
2073                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2074                 kfree(dcbx_info);
2075                 return -EINVAL;
2076         }
2077
2078         kfree(dcbx_info);
2079
2080         memset(&dcbx_set, 0, sizeof(dcbx_set));
2081         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2082         if (rc)
2083                 return -EINVAL;
2084
2085         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
2086         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2087                 dcbx_set.config.params.pfc.prio[i] = !!(pfc->pfc_en & BIT(i));
2088
2089         dcbx_set.config.params.pfc.max_tc = pfc->pfc_cap;
2090
2091         ptt = qed_ptt_acquire(hwfn);
2092         if (!ptt)
2093                 return -EINVAL;
2094
2095         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2096
2097         qed_ptt_release(hwfn, ptt);
2098
2099         return rc;
2100 }
2101
2102 static int qed_dcbnl_get_ieee_ets(struct qed_dev *cdev,
2103                                   struct ieee_ets *ets, bool remote)
2104 {
2105         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2106         struct qed_dcbx_get *dcbx_info;
2107         struct qed_dcbx_params *params;
2108         int rc;
2109
2110         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2111         if (!dcbx_info)
2112                 return -EINVAL;
2113
2114         if (!dcbx_info->operational.ieee) {
2115                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2116                 kfree(dcbx_info);
2117                 return -EINVAL;
2118         }
2119
2120         if (remote) {
2121                 memset(dcbx_info, 0, sizeof(*dcbx_info));
2122                 rc = qed_dcbx_query_params(hwfn, dcbx_info,
2123                                            QED_DCBX_REMOTE_MIB);
2124                 if (rc) {
2125                         kfree(dcbx_info);
2126                         return -EINVAL;
2127                 }
2128
2129                 params = &dcbx_info->remote.params;
2130         } else {
2131                 params = &dcbx_info->operational.params;
2132         }
2133
2134         ets->ets_cap = params->max_ets_tc;
2135         ets->willing = params->ets_willing;
2136         ets->cbs = params->ets_cbs;
2137         memcpy(ets->tc_tx_bw, params->ets_tc_bw_tbl, sizeof(ets->tc_tx_bw));
2138         memcpy(ets->tc_tsa, params->ets_tc_tsa_tbl, sizeof(ets->tc_tsa));
2139         memcpy(ets->prio_tc, params->ets_pri_tc_tbl, sizeof(ets->prio_tc));
2140         kfree(dcbx_info);
2141
2142         return 0;
2143 }
2144
2145 static int qed_dcbnl_ieee_getets(struct qed_dev *cdev, struct ieee_ets *ets)
2146 {
2147         return qed_dcbnl_get_ieee_ets(cdev, ets, false);
2148 }
2149
2150 static int qed_dcbnl_ieee_setets(struct qed_dev *cdev, struct ieee_ets *ets)
2151 {
2152         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2153         struct qed_dcbx_get *dcbx_info;
2154         struct qed_dcbx_set dcbx_set;
2155         struct qed_ptt *ptt;
2156         int rc;
2157
2158         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2159         if (!dcbx_info)
2160                 return -EINVAL;
2161
2162         if (!dcbx_info->operational.ieee) {
2163                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2164                 kfree(dcbx_info);
2165                 return -EINVAL;
2166         }
2167
2168         kfree(dcbx_info);
2169
2170         memset(&dcbx_set, 0, sizeof(dcbx_set));
2171         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2172         if (rc)
2173                 return -EINVAL;
2174
2175         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
2176         dcbx_set.config.params.max_ets_tc = ets->ets_cap;
2177         dcbx_set.config.params.ets_willing = ets->willing;
2178         dcbx_set.config.params.ets_cbs = ets->cbs;
2179         memcpy(dcbx_set.config.params.ets_tc_bw_tbl, ets->tc_tx_bw,
2180                sizeof(ets->tc_tx_bw));
2181         memcpy(dcbx_set.config.params.ets_tc_tsa_tbl, ets->tc_tsa,
2182                sizeof(ets->tc_tsa));
2183         memcpy(dcbx_set.config.params.ets_pri_tc_tbl, ets->prio_tc,
2184                sizeof(ets->prio_tc));
2185
2186         ptt = qed_ptt_acquire(hwfn);
2187         if (!ptt)
2188                 return -EINVAL;
2189
2190         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2191
2192         qed_ptt_release(hwfn, ptt);
2193
2194         return rc;
2195 }
2196
2197 static int
2198 qed_dcbnl_ieee_peer_getets(struct qed_dev *cdev, struct ieee_ets *ets)
2199 {
2200         return qed_dcbnl_get_ieee_ets(cdev, ets, true);
2201 }
2202
2203 static int
2204 qed_dcbnl_ieee_peer_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2205 {
2206         return qed_dcbnl_get_ieee_pfc(cdev, pfc, true);
2207 }
2208
2209 static int qed_get_sf_ieee_value(u8 selector, u8 *sf_ieee)
2210 {
2211         switch (selector) {
2212         case IEEE_8021QAZ_APP_SEL_ETHERTYPE:
2213                 *sf_ieee = QED_DCBX_SF_IEEE_ETHTYPE;
2214                 break;
2215         case IEEE_8021QAZ_APP_SEL_STREAM:
2216                 *sf_ieee = QED_DCBX_SF_IEEE_TCP_PORT;
2217                 break;
2218         case IEEE_8021QAZ_APP_SEL_DGRAM:
2219                 *sf_ieee = QED_DCBX_SF_IEEE_UDP_PORT;
2220                 break;
2221         case IEEE_8021QAZ_APP_SEL_ANY:
2222                 *sf_ieee = QED_DCBX_SF_IEEE_TCP_UDP_PORT;
2223                 break;
2224         default:
2225                 return -EINVAL;
2226         }
2227
2228         return 0;
2229 }
2230
2231 static int qed_dcbnl_ieee_getapp(struct qed_dev *cdev, struct dcb_app *app)
2232 {
2233         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2234         struct qed_dcbx_get *dcbx_info;
2235         struct qed_app_entry *entry;
2236         u8 prio = 0;
2237         u8 sf_ieee;
2238         int i;
2239
2240         DP_VERBOSE(hwfn, QED_MSG_DCB, "selector = %d protocol = %d\n",
2241                    app->selector, app->protocol);
2242
2243         if (qed_get_sf_ieee_value(app->selector, &sf_ieee)) {
2244                 DP_INFO(cdev, "Invalid selector field value %d\n",
2245                         app->selector);
2246                 return -EINVAL;
2247         }
2248
2249         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2250         if (!dcbx_info)
2251                 return -EINVAL;
2252
2253         if (!dcbx_info->operational.ieee) {
2254                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2255                 kfree(dcbx_info);
2256                 return -EINVAL;
2257         }
2258
2259         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
2260                 entry = &dcbx_info->operational.params.app_entry[i];
2261                 if ((entry->sf_ieee == sf_ieee) &&
2262                     (entry->proto_id == app->protocol)) {
2263                         prio = entry->prio;
2264                         break;
2265                 }
2266         }
2267
2268         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
2269                 DP_ERR(cdev, "App entry (%d, %d) not found\n", app->selector,
2270                        app->protocol);
2271                 kfree(dcbx_info);
2272                 return -EINVAL;
2273         }
2274
2275         app->priority = ffs(prio) - 1;
2276
2277         kfree(dcbx_info);
2278
2279         return 0;
2280 }
2281
2282 static int qed_dcbnl_ieee_setapp(struct qed_dev *cdev, struct dcb_app *app)
2283 {
2284         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2285         struct qed_dcbx_get *dcbx_info;
2286         struct qed_dcbx_set dcbx_set;
2287         struct qed_app_entry *entry;
2288         struct qed_ptt *ptt;
2289         u8 sf_ieee;
2290         int rc, i;
2291
2292         DP_VERBOSE(hwfn, QED_MSG_DCB, "selector = %d protocol = %d pri = %d\n",
2293                    app->selector, app->protocol, app->priority);
2294         if (app->priority < 0 || app->priority >= QED_MAX_PFC_PRIORITIES) {
2295                 DP_INFO(hwfn, "Invalid priority %d\n", app->priority);
2296                 return -EINVAL;
2297         }
2298
2299         if (qed_get_sf_ieee_value(app->selector, &sf_ieee)) {
2300                 DP_INFO(cdev, "Invalid selector field value %d\n",
2301                         app->selector);
2302                 return -EINVAL;
2303         }
2304
2305         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2306         if (!dcbx_info)
2307                 return -EINVAL;
2308
2309         if (!dcbx_info->operational.ieee) {
2310                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2311                 kfree(dcbx_info);
2312                 return -EINVAL;
2313         }
2314
2315         kfree(dcbx_info);
2316
2317         memset(&dcbx_set, 0, sizeof(dcbx_set));
2318         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2319         if (rc)
2320                 return -EINVAL;
2321
2322         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
2323                 entry = &dcbx_set.config.params.app_entry[i];
2324                 if ((entry->sf_ieee == sf_ieee) &&
2325                     (entry->proto_id == app->protocol))
2326                         break;
2327                 /* First empty slot */
2328                 if (!entry->proto_id) {
2329                         dcbx_set.config.params.num_app_entries++;
2330                         break;
2331                 }
2332         }
2333
2334         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
2335                 DP_ERR(cdev, "App table is full\n");
2336                 return -EBUSY;
2337         }
2338
2339         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
2340         dcbx_set.config.params.app_entry[i].sf_ieee = sf_ieee;
2341         dcbx_set.config.params.app_entry[i].proto_id = app->protocol;
2342         dcbx_set.config.params.app_entry[i].prio = BIT(app->priority);
2343
2344         ptt = qed_ptt_acquire(hwfn);
2345         if (!ptt)
2346                 return -EBUSY;
2347
2348         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2349
2350         qed_ptt_release(hwfn, ptt);
2351
2352         return rc;
2353 }
2354
2355 const struct qed_eth_dcbnl_ops qed_dcbnl_ops_pass = {
2356         .getstate = qed_dcbnl_getstate,
2357         .setstate = qed_dcbnl_setstate,
2358         .getpgtccfgtx = qed_dcbnl_getpgtccfgtx,
2359         .getpgbwgcfgtx = qed_dcbnl_getpgbwgcfgtx,
2360         .getpgtccfgrx = qed_dcbnl_getpgtccfgrx,
2361         .getpgbwgcfgrx = qed_dcbnl_getpgbwgcfgrx,
2362         .getpfccfg = qed_dcbnl_getpfccfg,
2363         .setpfccfg = qed_dcbnl_setpfccfg,
2364         .getcap = qed_dcbnl_getcap,
2365         .getnumtcs = qed_dcbnl_getnumtcs,
2366         .getpfcstate = qed_dcbnl_getpfcstate,
2367         .getdcbx = qed_dcbnl_getdcbx,
2368         .setpgtccfgtx = qed_dcbnl_setpgtccfgtx,
2369         .setpgtccfgrx = qed_dcbnl_setpgtccfgrx,
2370         .setpgbwgcfgtx = qed_dcbnl_setpgbwgcfgtx,
2371         .setpgbwgcfgrx = qed_dcbnl_setpgbwgcfgrx,
2372         .setall = qed_dcbnl_setall,
2373         .setnumtcs = qed_dcbnl_setnumtcs,
2374         .setpfcstate = qed_dcbnl_setpfcstate,
2375         .setapp = qed_dcbnl_setapp,
2376         .setdcbx = qed_dcbnl_setdcbx,
2377         .setfeatcfg = qed_dcbnl_setfeatcfg,
2378         .getfeatcfg = qed_dcbnl_getfeatcfg,
2379         .getapp = qed_dcbnl_getapp,
2380         .peer_getappinfo = qed_dcbnl_peer_getappinfo,
2381         .peer_getapptable = qed_dcbnl_peer_getapptable,
2382         .cee_peer_getpfc = qed_dcbnl_cee_peer_getpfc,
2383         .cee_peer_getpg = qed_dcbnl_cee_peer_getpg,
2384         .ieee_getpfc = qed_dcbnl_ieee_getpfc,
2385         .ieee_setpfc = qed_dcbnl_ieee_setpfc,
2386         .ieee_getets = qed_dcbnl_ieee_getets,
2387         .ieee_setets = qed_dcbnl_ieee_setets,
2388         .ieee_peer_getpfc = qed_dcbnl_ieee_peer_getpfc,
2389         .ieee_peer_getets = qed_dcbnl_ieee_peer_getets,
2390         .ieee_getapp = qed_dcbnl_ieee_getapp,
2391         .ieee_setapp = qed_dcbnl_ieee_setapp,
2392 };
2393
2394 #endif