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 #include "qed_rdma.h"
  48 #ifdef CONFIG_DCB
  49 #include <linux/qed/qed_eth_if.h>
  50 #endif
  51
  52 #define QED_DCBX_MAX_MIB_READ_TRY       (100)
  53 #define QED_ETH_TYPE_DEFAULT            (0)
  54 #define QED_ETH_TYPE_ROCE               (0x8915)
  55 #define QED_UDP_PORT_TYPE_ROCE_V2       (0x12B7)
  56 #define QED_ETH_TYPE_FCOE               (0x8906)
  57 #define QED_TCP_PORT_ISCSI              (0xCBC)
  58
  59 #define QED_DCBX_INVALID_PRIORITY       0xFF
  60
  61 /* Get Traffic Class from priority traffic class table, 4 bits represent
  62  * the traffic class corresponding to the priority.
  63  */
  64 #define QED_DCBX_PRIO2TC(prio_tc_tbl, prio) \
  65         ((u32)(prio_tc_tbl >> ((7 - prio) * 4)) & 0x7)
  66
  67 static const struct qed_dcbx_app_metadata qed_dcbx_app_update[] = {
  68         {DCBX_PROTOCOL_ISCSI, "ISCSI", QED_PCI_ISCSI},
  69         {DCBX_PROTOCOL_FCOE, "FCOE", QED_PCI_FCOE},
  70         {DCBX_PROTOCOL_ROCE, "ROCE", QED_PCI_ETH_ROCE},
  71         {DCBX_PROTOCOL_ROCE_V2, "ROCE_V2", QED_PCI_ETH_ROCE},
  72         {DCBX_PROTOCOL_ETH, "ETH", QED_PCI_ETH},
  73 };
  74
  75 static bool qed_dcbx_app_ethtype(u32 app_info_bitmap)
  76 {
  77         return !!(QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) ==
  78                   DCBX_APP_SF_ETHTYPE);
  79 }
  80
  81 static bool qed_dcbx_ieee_app_ethtype(u32 app_info_bitmap)
  82 {
  83         u8 mfw_val = QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE);
  84
  85         /* Old MFW */
  86         if (mfw_val == DCBX_APP_SF_IEEE_RESERVED)
  87                 return qed_dcbx_app_ethtype(app_info_bitmap);
  88
  89         return !!(mfw_val == DCBX_APP_SF_IEEE_ETHTYPE);
  90 }
  91
  92 static bool qed_dcbx_app_port(u32 app_info_bitmap)
  93 {
  94         return !!(QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) ==
  95                   DCBX_APP_SF_PORT);
  96 }
  97
  98 static bool qed_dcbx_ieee_app_port(u32 app_info_bitmap, u8 type)
  99 {
 100         u8 mfw_val = QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE);
 101
 102         /* Old MFW */
 103         if (mfw_val == DCBX_APP_SF_IEEE_RESERVED)
 104                 return qed_dcbx_app_port(app_info_bitmap);
 105
 106         return !!(mfw_val == type || mfw_val == DCBX_APP_SF_IEEE_TCP_UDP_PORT);
 107 }
 108
 109 static bool qed_dcbx_default_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
 110 {
 111         bool ethtype;
 112
 113         if (ieee)
 114                 ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
 115         else
 116                 ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
 117
 118         return !!(ethtype && (proto_id == QED_ETH_TYPE_DEFAULT));
 119 }
 120
 121 static bool qed_dcbx_iscsi_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
 122 {
 123         bool port;
 124
 125         if (ieee)
 126                 port = qed_dcbx_ieee_app_port(app_info_bitmap,
 127                                               DCBX_APP_SF_IEEE_TCP_PORT);
 128         else
 129                 port = qed_dcbx_app_port(app_info_bitmap);
 130
 131         return !!(port && (proto_id == QED_TCP_PORT_ISCSI));
 132 }
 133
 134 static bool qed_dcbx_fcoe_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
 135 {
 136         bool ethtype;
 137
 138         if (ieee)
 139                 ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
 140         else
 141                 ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
 142
 143         return !!(ethtype && (proto_id == QED_ETH_TYPE_FCOE));
 144 }
 145
 146 static bool qed_dcbx_roce_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
 147 {
 148         bool ethtype;
 149
 150         if (ieee)
 151                 ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
 152         else
 153                 ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
 154
 155         return !!(ethtype && (proto_id == QED_ETH_TYPE_ROCE));
 156 }
 157
 158 static bool qed_dcbx_roce_v2_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
 159 {
 160         bool port;
 161
 162         if (ieee)
 163                 port = qed_dcbx_ieee_app_port(app_info_bitmap,
 164                                               DCBX_APP_SF_IEEE_UDP_PORT);
 165         else
 166                 port = qed_dcbx_app_port(app_info_bitmap);
 167
 168         return !!(port && (proto_id == QED_UDP_PORT_TYPE_ROCE_V2));
 169 }
 170
 171 static void
 172 qed_dcbx_dp_protocol(struct qed_hwfn *p_hwfn, struct qed_dcbx_results *p_data)
 173 {
 174         enum dcbx_protocol_type id;
 175         int i;
 176
 177         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "DCBX negotiated: %d\n",
 178                    p_data->dcbx_enabled);
 179
 180         for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) {
 181                 id = qed_dcbx_app_update[i].id;
 182
 183                 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 184                            "%s info: update %d, enable %d, prio %d, tc %d, num_tc %d\n",
 185                            qed_dcbx_app_update[i].name, p_data->arr[id].update,
 186                            p_data->arr[id].enable, p_data->arr[id].priority,
 187                            p_data->arr[id].tc, p_hwfn->hw_info.num_active_tc);
 188         }
 189 }
 190
 191 static void
 192 qed_dcbx_set_params(struct qed_dcbx_results *p_data,
 193                     struct qed_hw_info *p_info,
 194                     bool enable,
 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].enable = enable;
 202         p_data->arr[type].priority = prio;
 203         p_data->arr[type].tc = tc;
 204         if (enable)
 205                 p_data->arr[type].update = UPDATE_DCB;
 206         else
 207                 p_data->arr[type].update = DONT_UPDATE_DCB_DSCP;
 208
 209         /* QM reconf data */
 210         if (p_info->personality == personality)
 211                 p_info->offload_tc = tc;
 212 }
 213
 214 /* Update app protocol data and hw_info fields with the TLV info */
 215 static void
 216 qed_dcbx_update_app_info(struct qed_dcbx_results *p_data,
 217                          struct qed_hwfn *p_hwfn,
 218                          bool enable,
 219                          u8 prio, u8 tc, enum dcbx_protocol_type type)
 220 {
 221         struct qed_hw_info *p_info = &p_hwfn->hw_info;
 222         enum qed_pci_personality personality;
 223         enum dcbx_protocol_type id;
 224         char *name;
 225         int i;
 226
 227         for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) {
 228                 id = qed_dcbx_app_update[i].id;
 229
 230                 if (type != id)
 231                         continue;
 232
 233                 personality = qed_dcbx_app_update[i].personality;
 234                 name = qed_dcbx_app_update[i].name;
 235
 236                 qed_dcbx_set_params(p_data, p_info, enable,
 237                                     prio, tc, type, personality);
 238         }
 239 }
 240
 241 static bool
 242 qed_dcbx_get_app_protocol_type(struct qed_hwfn *p_hwfn,
 243                                u32 app_prio_bitmap,
 244                                u16 id, enum dcbx_protocol_type *type, bool ieee)
 245 {
 246         if (qed_dcbx_fcoe_tlv(app_prio_bitmap, id, ieee)) {
 247                 *type = DCBX_PROTOCOL_FCOE;
 248         } else if (qed_dcbx_roce_tlv(app_prio_bitmap, id, ieee)) {
 249                 *type = DCBX_PROTOCOL_ROCE;
 250         } else if (qed_dcbx_iscsi_tlv(app_prio_bitmap, id, ieee)) {
 251                 *type = DCBX_PROTOCOL_ISCSI;
 252         } else if (qed_dcbx_default_tlv(app_prio_bitmap, id, ieee)) {
 253                 *type = DCBX_PROTOCOL_ETH;
 254         } else if (qed_dcbx_roce_v2_tlv(app_prio_bitmap, id, ieee)) {
 255                 *type = DCBX_PROTOCOL_ROCE_V2;
 256         } else {
 257                 *type = DCBX_MAX_PROTOCOL_TYPE;
 258                 DP_ERR(p_hwfn, "No action required, App TLV entry = 0x%x\n",
 259                        app_prio_bitmap);
 260                 return false;
 261         }
 262
 263         return true;
 264 }
 265
 266 /* Parse app TLV's to update TC information in hw_info structure for
 267  * reconfiguring QM. Get protocol specific data for PF update ramrod command.
 268  */
 269 static int
 270 qed_dcbx_process_tlv(struct qed_hwfn *p_hwfn,
 271                      struct qed_dcbx_results *p_data,
 272                      struct dcbx_app_priority_entry *p_tbl,
 273                      u32 pri_tc_tbl, int count, u8 dcbx_version)
 274 {
 275         enum dcbx_protocol_type type;
 276         bool enable, ieee, eth_tlv;
 277         u8 tc, priority_map;
 278         u16 protocol_id;
 279         int priority;
 280         int i;
 281
 282         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Num APP entries = %d\n", count);
 283
 284         ieee = (dcbx_version == DCBX_CONFIG_VERSION_IEEE);
 285         eth_tlv = false;
 286         /* Parse APP TLV */
 287         for (i = 0; i < count; i++) {
 288                 protocol_id = QED_MFW_GET_FIELD(p_tbl[i].entry,
 289                                                 DCBX_APP_PROTOCOL_ID);
 290                 priority_map = QED_MFW_GET_FIELD(p_tbl[i].entry,
 291                                                  DCBX_APP_PRI_MAP);
 292                 priority = ffs(priority_map) - 1;
 293                 if (priority < 0) {
 294                         DP_ERR(p_hwfn, "Invalid priority\n");
 295                         return -EINVAL;
 296                 }
 297
 298                 tc = QED_DCBX_PRIO2TC(pri_tc_tbl, priority);
 299                 if (qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
 300                                                    protocol_id, &type, ieee)) {
 301                         /* ETH always have the enable bit reset, as it gets
 302                          * vlan information per packet. For other protocols,
 303                          * should be set according to the dcbx_enabled
 304                          * indication, but we only got here if there was an
 305                          * app tlv for the protocol, so dcbx must be enabled.
 306                          */
 307                         if (type == DCBX_PROTOCOL_ETH) {
 308                                 enable = false;
 309                                 eth_tlv = true;
 310                         } else {
 311                                 enable = true;
 312                         }
 313
 314                         qed_dcbx_update_app_info(p_data, p_hwfn, enable,
 315                                                  priority, tc, type);
 316                 }
 317         }
 318
 319         /* If Eth TLV is not detected, use UFP TC as default TC */
 320         if (test_bit(QED_MF_UFP_SPECIFIC, &p_hwfn->cdev->mf_bits) && !eth_tlv)
 321                 p_data->arr[DCBX_PROTOCOL_ETH].tc = p_hwfn->ufp_info.tc;
 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) ? false : !!dcbx_version;
 336                 qed_dcbx_update_app_info(p_data, p_hwfn, enable,
 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                         /* for roce PFs, we may want to enable/disable DPM
 907                          * when DCBx change occurs
 908                          */
 909                         if (p_hwfn->hw_info.personality ==
 910                             QED_PCI_ETH_ROCE)
 911                                 qed_roce_dpm_dcbx(p_hwfn, p_ptt);
 912                 }
 913         }
 914
 915         qed_dcbx_get_params(p_hwfn, &p_hwfn->p_dcbx_info->get, type);
 916
 917         if (type == QED_DCBX_OPERATIONAL_MIB) {
 918                 struct qed_dcbx_results *p_data;
 919                 u16 val;
 920
 921                 /* Configure in NIG which protocols support EDPM and should
 922                  * honor PFC.
 923                  */
 924                 p_data = &p_hwfn->p_dcbx_info->results;
 925                 val = (0x1 << p_data->arr[DCBX_PROTOCOL_ROCE].tc) |
 926                       (0x1 << p_data->arr[DCBX_PROTOCOL_ROCE_V2].tc);
 927                 val <<= NIG_REG_TX_EDPM_CTRL_TX_EDPM_TC_EN_SHIFT;
 928                 val |= NIG_REG_TX_EDPM_CTRL_TX_EDPM_EN;
 929                 qed_wr(p_hwfn, p_ptt, NIG_REG_TX_EDPM_CTRL, val);
 930         }
 931
 932         qed_dcbx_aen(p_hwfn, type);
 933
 934         return rc;
 935 }
 936
 937 int qed_dcbx_info_alloc(struct qed_hwfn *p_hwfn)
 938 {
 939         p_hwfn->p_dcbx_info = kzalloc(sizeof(*p_hwfn->p_dcbx_info), GFP_KERNEL);
 940         if (!p_hwfn->p_dcbx_info)
 941                 return -ENOMEM;
 942
 943         return 0;
 944 }
 945
 946 void qed_dcbx_info_free(struct qed_hwfn *p_hwfn)
 947 {
 948         kfree(p_hwfn->p_dcbx_info);
 949         p_hwfn->p_dcbx_info = NULL;
 950 }
 951
 952 static void qed_dcbx_update_protocol_data(struct protocol_dcb_data *p_data,
 953                                           struct qed_dcbx_results *p_src,
 954                                           enum dcbx_protocol_type type)
 955 {
 956         p_data->dcb_enable_flag = p_src->arr[type].enable;
 957         p_data->dcb_priority = p_src->arr[type].priority;
 958         p_data->dcb_tc = p_src->arr[type].tc;
 959 }
 960
 961 /* Set pf update ramrod command params */
 962 void qed_dcbx_set_pf_update_params(struct qed_dcbx_results *p_src,
 963                                    struct pf_update_ramrod_data *p_dest)
 964 {
 965         struct protocol_dcb_data *p_dcb_data;
 966         u8 update_flag;
 967
 968         update_flag = p_src->arr[DCBX_PROTOCOL_FCOE].update;
 969         p_dest->update_fcoe_dcb_data_mode = update_flag;
 970
 971         update_flag = p_src->arr[DCBX_PROTOCOL_ROCE].update;
 972         p_dest->update_roce_dcb_data_mode = update_flag;
 973
 974         update_flag = p_src->arr[DCBX_PROTOCOL_ROCE_V2].update;
 975         p_dest->update_rroce_dcb_data_mode = update_flag;
 976
 977         update_flag = p_src->arr[DCBX_PROTOCOL_ISCSI].update;
 978         p_dest->update_iscsi_dcb_data_mode = update_flag;
 979         update_flag = p_src->arr[DCBX_PROTOCOL_ETH].update;
 980         p_dest->update_eth_dcb_data_mode = update_flag;
 981
 982         p_dcb_data = &p_dest->fcoe_dcb_data;
 983         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_FCOE);
 984         p_dcb_data = &p_dest->roce_dcb_data;
 985         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ROCE);
 986         p_dcb_data = &p_dest->rroce_dcb_data;
 987         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ROCE_V2);
 988         p_dcb_data = &p_dest->iscsi_dcb_data;
 989         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ISCSI);
 990         p_dcb_data = &p_dest->eth_dcb_data;
 991         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ETH);
 992 }
 993
 994 #ifdef CONFIG_DCB
 995 static int qed_dcbx_query_params(struct qed_hwfn *p_hwfn,
 996                                  struct qed_dcbx_get *p_get,
 997                                  enum qed_mib_read_type type)
 998 {
 999         struct qed_ptt *p_ptt;
1000         int rc;
1001
1002         if (IS_VF(p_hwfn->cdev))
1003                 return -EINVAL;
1004
1005         p_ptt = qed_ptt_acquire(p_hwfn);
1006         if (!p_ptt)
1007                 return -EBUSY;
1008
1009         rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type);
1010         if (rc)
1011                 goto out;
1012
1013         rc = qed_dcbx_get_params(p_hwfn, p_get, type);
1014
1015 out:
1016         qed_ptt_release(p_hwfn, p_ptt);
1017         return rc;
1018 }
1019
1020 static void
1021 qed_dcbx_set_pfc_data(struct qed_hwfn *p_hwfn,
1022                       u32 *pfc, struct qed_dcbx_params *p_params)
1023 {
1024         u8 pfc_map = 0;
1025         int i;
1026
1027         *pfc &= ~DCBX_PFC_ERROR_MASK;
1028
1029         if (p_params->pfc.willing)
1030                 *pfc |= DCBX_PFC_WILLING_MASK;
1031         else
1032                 *pfc &= ~DCBX_PFC_WILLING_MASK;
1033
1034         if (p_params->pfc.enabled)
1035                 *pfc |= DCBX_PFC_ENABLED_MASK;
1036         else
1037                 *pfc &= ~DCBX_PFC_ENABLED_MASK;
1038
1039         *pfc &= ~DCBX_PFC_CAPS_MASK;
1040         *pfc |= (u32)p_params->pfc.max_tc << DCBX_PFC_CAPS_SHIFT;
1041
1042         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
1043                 if (p_params->pfc.prio[i])
1044                         pfc_map |= BIT(i);
1045
1046         *pfc &= ~DCBX_PFC_PRI_EN_BITMAP_MASK;
1047         *pfc |= (pfc_map << DCBX_PFC_PRI_EN_BITMAP_SHIFT);
1048
1049         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "pfc = 0x%x\n", *pfc);
1050 }
1051
1052 static void
1053 qed_dcbx_set_ets_data(struct qed_hwfn *p_hwfn,
1054                       struct dcbx_ets_feature *p_ets,
1055                       struct qed_dcbx_params *p_params)
1056 {
1057         u8 *bw_map, *tsa_map;
1058         u32 val;
1059         int i;
1060
1061         if (p_params->ets_willing)
1062                 p_ets->flags |= DCBX_ETS_WILLING_MASK;
1063         else
1064                 p_ets->flags &= ~DCBX_ETS_WILLING_MASK;
1065
1066         if (p_params->ets_cbs)
1067                 p_ets->flags |= DCBX_ETS_CBS_MASK;
1068         else
1069                 p_ets->flags &= ~DCBX_ETS_CBS_MASK;
1070
1071         if (p_params->ets_enabled)
1072                 p_ets->flags |= DCBX_ETS_ENABLED_MASK;
1073         else
1074                 p_ets->flags &= ~DCBX_ETS_ENABLED_MASK;
1075
1076         p_ets->flags &= ~DCBX_ETS_MAX_TCS_MASK;
1077         p_ets->flags |= (u32)p_params->max_ets_tc << DCBX_ETS_MAX_TCS_SHIFT;
1078
1079         bw_map = (u8 *)&p_ets->tc_bw_tbl[0];
1080         tsa_map = (u8 *)&p_ets->tc_tsa_tbl[0];
1081         p_ets->pri_tc_tbl[0] = 0;
1082         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
1083                 bw_map[i] = p_params->ets_tc_bw_tbl[i];
1084                 tsa_map[i] = p_params->ets_tc_tsa_tbl[i];
1085                 /* Copy the priority value to the corresponding 4 bits in the
1086                  * traffic class table.
1087                  */
1088                 val = (((u32)p_params->ets_pri_tc_tbl[i]) << ((7 - i) * 4));
1089                 p_ets->pri_tc_tbl[0] |= val;
1090         }
1091         for (i = 0; i < 2; i++) {
1092                 p_ets->tc_bw_tbl[i] = cpu_to_be32(p_ets->tc_bw_tbl[i]);
1093                 p_ets->tc_tsa_tbl[i] = cpu_to_be32(p_ets->tc_tsa_tbl[i]);
1094         }
1095 }
1096
1097 static void
1098 qed_dcbx_set_app_data(struct qed_hwfn *p_hwfn,
1099                       struct dcbx_app_priority_feature *p_app,
1100                       struct qed_dcbx_params *p_params, bool ieee)
1101 {
1102         u32 *entry;
1103         int i;
1104
1105         if (p_params->app_willing)
1106                 p_app->flags |= DCBX_APP_WILLING_MASK;
1107         else
1108                 p_app->flags &= ~DCBX_APP_WILLING_MASK;
1109
1110         if (p_params->app_valid)
1111                 p_app->flags |= DCBX_APP_ENABLED_MASK;
1112         else
1113                 p_app->flags &= ~DCBX_APP_ENABLED_MASK;
1114
1115         p_app->flags &= ~DCBX_APP_NUM_ENTRIES_MASK;
1116         p_app->flags |= (u32)p_params->num_app_entries <<
1117             DCBX_APP_NUM_ENTRIES_SHIFT;
1118
1119         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
1120                 entry = &p_app->app_pri_tbl[i].entry;
1121                 *entry = 0;
1122                 if (ieee) {
1123                         *entry &= ~(DCBX_APP_SF_IEEE_MASK | DCBX_APP_SF_MASK);
1124                         switch (p_params->app_entry[i].sf_ieee) {
1125                         case QED_DCBX_SF_IEEE_ETHTYPE:
1126                                 *entry |= ((u32)DCBX_APP_SF_IEEE_ETHTYPE <<
1127                                            DCBX_APP_SF_IEEE_SHIFT);
1128                                 *entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
1129                                            DCBX_APP_SF_SHIFT);
1130                                 break;
1131                         case QED_DCBX_SF_IEEE_TCP_PORT:
1132                                 *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_PORT <<
1133                                            DCBX_APP_SF_IEEE_SHIFT);
1134                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1135                                            DCBX_APP_SF_SHIFT);
1136                                 break;
1137                         case QED_DCBX_SF_IEEE_UDP_PORT:
1138                                 *entry |= ((u32)DCBX_APP_SF_IEEE_UDP_PORT <<
1139                                            DCBX_APP_SF_IEEE_SHIFT);
1140                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1141                                            DCBX_APP_SF_SHIFT);
1142                                 break;
1143                         case QED_DCBX_SF_IEEE_TCP_UDP_PORT:
1144                                 *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_UDP_PORT <<
1145                                            DCBX_APP_SF_IEEE_SHIFT);
1146                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1147                                            DCBX_APP_SF_SHIFT);
1148                                 break;
1149                         }
1150                 } else {
1151                         *entry &= ~DCBX_APP_SF_MASK;
1152                         if (p_params->app_entry[i].ethtype)
1153                                 *entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
1154                                            DCBX_APP_SF_SHIFT);
1155                         else
1156                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1157                                            DCBX_APP_SF_SHIFT);
1158                 }
1159
1160                 *entry &= ~DCBX_APP_PROTOCOL_ID_MASK;
1161                 *entry |= ((u32)p_params->app_entry[i].proto_id <<
1162                            DCBX_APP_PROTOCOL_ID_SHIFT);
1163                 *entry &= ~DCBX_APP_PRI_MAP_MASK;
1164                 *entry |= ((u32)(p_params->app_entry[i].prio) <<
1165                            DCBX_APP_PRI_MAP_SHIFT);
1166         }
1167 }
1168
1169 static void
1170 qed_dcbx_set_local_params(struct qed_hwfn *p_hwfn,
1171                           struct dcbx_local_params *local_admin,
1172                           struct qed_dcbx_set *params)
1173 {
1174         bool ieee = false;
1175
1176         local_admin->flags = 0;
1177         memcpy(&local_admin->features,
1178                &p_hwfn->p_dcbx_info->operational.features,
1179                sizeof(local_admin->features));
1180
1181         if (params->enabled) {
1182                 local_admin->config = params->ver_num;
1183                 ieee = !!(params->ver_num & DCBX_CONFIG_VERSION_IEEE);
1184         } else {
1185                 local_admin->config = DCBX_CONFIG_VERSION_DISABLED;
1186         }
1187
1188         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Dcbx version = %d\n",
1189                    local_admin->config);
1190
1191         if (params->override_flags & QED_DCBX_OVERRIDE_PFC_CFG)
1192                 qed_dcbx_set_pfc_data(p_hwfn, &local_admin->features.pfc,
1193                                       &params->config.params);
1194
1195         if (params->override_flags & QED_DCBX_OVERRIDE_ETS_CFG)
1196                 qed_dcbx_set_ets_data(p_hwfn, &local_admin->features.ets,
1197                                       &params->config.params);
1198
1199         if (params->override_flags & QED_DCBX_OVERRIDE_APP_CFG)
1200                 qed_dcbx_set_app_data(p_hwfn, &local_admin->features.app,
1201                                       &params->config.params, ieee);
1202 }
1203
1204 int qed_dcbx_config_params(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
1205                            struct qed_dcbx_set *params, bool hw_commit)
1206 {
1207         struct dcbx_local_params local_admin;
1208         struct qed_dcbx_mib_meta_data data;
1209         u32 resp = 0, param = 0;
1210         int rc = 0;
1211
1212         if (!hw_commit) {
1213                 memcpy(&p_hwfn->p_dcbx_info->set, params,
1214                        sizeof(struct qed_dcbx_set));
1215                 return 0;
1216         }
1217
1218         /* clear set-parmas cache */
1219         memset(&p_hwfn->p_dcbx_info->set, 0, sizeof(p_hwfn->p_dcbx_info->set));
1220
1221         memset(&local_admin, 0, sizeof(local_admin));
1222         qed_dcbx_set_local_params(p_hwfn, &local_admin, params);
1223
1224         data.addr = p_hwfn->mcp_info->port_addr +
1225             offsetof(struct public_port, local_admin_dcbx_mib);
1226         data.local_admin = &local_admin;
1227         data.size = sizeof(struct dcbx_local_params);
1228         qed_memcpy_to(p_hwfn, p_ptt, data.addr, data.local_admin, data.size);
1229
1230         rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_SET_DCBX,
1231                          1 << DRV_MB_PARAM_LLDP_SEND_SHIFT, &resp, &param);
1232         if (rc)
1233                 DP_NOTICE(p_hwfn, "Failed to send DCBX update request\n");
1234
1235         return rc;
1236 }
1237
1238 int qed_dcbx_get_config_params(struct qed_hwfn *p_hwfn,
1239                                struct qed_dcbx_set *params)
1240 {
1241         struct qed_dcbx_get *dcbx_info;
1242         int rc;
1243
1244         if (p_hwfn->p_dcbx_info->set.config.valid) {
1245                 memcpy(params, &p_hwfn->p_dcbx_info->set,
1246                        sizeof(struct qed_dcbx_set));
1247                 return 0;
1248         }
1249
1250         dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_KERNEL);
1251         if (!dcbx_info)
1252                 return -ENOMEM;
1253
1254         rc = qed_dcbx_query_params(p_hwfn, dcbx_info, QED_DCBX_OPERATIONAL_MIB);
1255         if (rc) {
1256                 kfree(dcbx_info);
1257                 return rc;
1258         }
1259
1260         p_hwfn->p_dcbx_info->set.override_flags = 0;
1261         p_hwfn->p_dcbx_info->set.ver_num = DCBX_CONFIG_VERSION_DISABLED;
1262         if (dcbx_info->operational.cee)
1263                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1264         if (dcbx_info->operational.ieee)
1265                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1266         if (dcbx_info->operational.local)
1267                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_STATIC;
1268
1269         p_hwfn->p_dcbx_info->set.enabled = dcbx_info->operational.enabled;
1270         memcpy(&p_hwfn->p_dcbx_info->set.config.params,
1271                &dcbx_info->operational.params,
1272                sizeof(struct qed_dcbx_admin_params));
1273         p_hwfn->p_dcbx_info->set.config.valid = true;
1274
1275         memcpy(params, &p_hwfn->p_dcbx_info->set, sizeof(struct qed_dcbx_set));
1276
1277         kfree(dcbx_info);
1278
1279         return 0;
1280 }
1281
1282 static struct qed_dcbx_get *qed_dcbnl_get_dcbx(struct qed_hwfn *hwfn,
1283                                                enum qed_mib_read_type type)
1284 {
1285         struct qed_dcbx_get *dcbx_info;
1286
1287         dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_ATOMIC);
1288         if (!dcbx_info)
1289                 return NULL;
1290
1291         if (qed_dcbx_query_params(hwfn, dcbx_info, type)) {
1292                 kfree(dcbx_info);
1293                 return NULL;
1294         }
1295
1296         if ((type == QED_DCBX_OPERATIONAL_MIB) &&
1297             !dcbx_info->operational.enabled) {
1298                 DP_INFO(hwfn, "DCBX is not enabled/operational\n");
1299                 kfree(dcbx_info);
1300                 return NULL;
1301         }
1302
1303         return dcbx_info;
1304 }
1305
1306 static u8 qed_dcbnl_getstate(struct qed_dev *cdev)
1307 {
1308         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1309         struct qed_dcbx_get *dcbx_info;
1310         bool enabled;
1311
1312         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1313         if (!dcbx_info)
1314                 return 0;
1315
1316         enabled = dcbx_info->operational.enabled;
1317         DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", enabled);
1318         kfree(dcbx_info);
1319
1320         return enabled;
1321 }
1322
1323 static u8 qed_dcbnl_setstate(struct qed_dev *cdev, u8 state)
1324 {
1325         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1326         struct qed_dcbx_set dcbx_set;
1327         struct qed_ptt *ptt;
1328         int rc;
1329
1330         DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", state);
1331
1332         memset(&dcbx_set, 0, sizeof(dcbx_set));
1333         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1334         if (rc)
1335                 return 1;
1336
1337         dcbx_set.enabled = !!state;
1338
1339         ptt = qed_ptt_acquire(hwfn);
1340         if (!ptt)
1341                 return 1;
1342
1343         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1344
1345         qed_ptt_release(hwfn, ptt);
1346
1347         return rc ? 1 : 0;
1348 }
1349
1350 static void qed_dcbnl_getpgtccfgtx(struct qed_dev *cdev, int tc, u8 *prio_type,
1351                                    u8 *pgid, u8 *bw_pct, u8 *up_map)
1352 {
1353         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1354         struct qed_dcbx_get *dcbx_info;
1355
1356         DP_VERBOSE(hwfn, QED_MSG_DCB, "tc = %d\n", tc);
1357         *prio_type = *pgid = *bw_pct = *up_map = 0;
1358         if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
1359                 DP_INFO(hwfn, "Invalid tc %d\n", tc);
1360                 return;
1361         }
1362
1363         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1364         if (!dcbx_info)
1365                 return;
1366
1367         *pgid = dcbx_info->operational.params.ets_pri_tc_tbl[tc];
1368         kfree(dcbx_info);
1369 }
1370
1371 static void qed_dcbnl_getpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 *bw_pct)
1372 {
1373         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1374         struct qed_dcbx_get *dcbx_info;
1375
1376         *bw_pct = 0;
1377         DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d\n", pgid);
1378         if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
1379                 DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
1380                 return;
1381         }
1382
1383         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1384         if (!dcbx_info)
1385                 return;
1386
1387         *bw_pct = dcbx_info->operational.params.ets_tc_bw_tbl[pgid];
1388         DP_VERBOSE(hwfn, QED_MSG_DCB, "bw_pct = %d\n", *bw_pct);
1389         kfree(dcbx_info);
1390 }
1391
1392 static void qed_dcbnl_getpgtccfgrx(struct qed_dev *cdev, int tc, u8 *prio,
1393                                    u8 *bwg_id, u8 *bw_pct, u8 *up_map)
1394 {
1395         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1396         *prio = *bwg_id = *bw_pct = *up_map = 0;
1397 }
1398
1399 static void qed_dcbnl_getpgbwgcfgrx(struct qed_dev *cdev,
1400                                     int bwg_id, u8 *bw_pct)
1401 {
1402         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1403         *bw_pct = 0;
1404 }
1405
1406 static void qed_dcbnl_getpfccfg(struct qed_dev *cdev,
1407                                 int priority, u8 *setting)
1408 {
1409         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1410         struct qed_dcbx_get *dcbx_info;
1411
1412         DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d\n", priority);
1413         if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
1414                 DP_INFO(hwfn, "Invalid priority %d\n", priority);
1415                 return;
1416         }
1417
1418         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1419         if (!dcbx_info)
1420                 return;
1421
1422         *setting = dcbx_info->operational.params.pfc.prio[priority];
1423         DP_VERBOSE(hwfn, QED_MSG_DCB, "setting = %d\n", *setting);
1424         kfree(dcbx_info);
1425 }
1426
1427 static void qed_dcbnl_setpfccfg(struct qed_dev *cdev, int priority, u8 setting)
1428 {
1429         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1430         struct qed_dcbx_set dcbx_set;
1431         struct qed_ptt *ptt;
1432         int rc;
1433
1434         DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d setting = %d\n",
1435                    priority, setting);
1436         if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
1437                 DP_INFO(hwfn, "Invalid priority %d\n", priority);
1438                 return;
1439         }
1440
1441         memset(&dcbx_set, 0, sizeof(dcbx_set));
1442         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1443         if (rc)
1444                 return;
1445
1446         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1447         dcbx_set.config.params.pfc.prio[priority] = !!setting;
1448
1449         ptt = qed_ptt_acquire(hwfn);
1450         if (!ptt)
1451                 return;
1452
1453         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1454
1455         qed_ptt_release(hwfn, ptt);
1456 }
1457
1458 static u8 qed_dcbnl_getcap(struct qed_dev *cdev, int capid, u8 *cap)
1459 {
1460         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1461         struct qed_dcbx_get *dcbx_info;
1462         int rc = 0;
1463
1464         DP_VERBOSE(hwfn, QED_MSG_DCB, "capid = %d\n", capid);
1465         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1466         if (!dcbx_info)
1467                 return 1;
1468
1469         switch (capid) {
1470         case DCB_CAP_ATTR_PG:
1471         case DCB_CAP_ATTR_PFC:
1472         case DCB_CAP_ATTR_UP2TC:
1473         case DCB_CAP_ATTR_GSP:
1474                 *cap = true;
1475                 break;
1476         case DCB_CAP_ATTR_PG_TCS:
1477         case DCB_CAP_ATTR_PFC_TCS:
1478                 *cap = 0x80;
1479                 break;
1480         case DCB_CAP_ATTR_DCBX:
1481                 *cap = (DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_VER_IEEE |
1482                         DCB_CAP_DCBX_STATIC);
1483                 break;
1484         default:
1485                 *cap = false;
1486                 rc = 1;
1487         }
1488
1489         DP_VERBOSE(hwfn, QED_MSG_DCB, "id = %d caps = %d\n", capid, *cap);
1490         kfree(dcbx_info);
1491
1492         return rc;
1493 }
1494
1495 static int qed_dcbnl_getnumtcs(struct qed_dev *cdev, int tcid, u8 *num)
1496 {
1497         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1498         struct qed_dcbx_get *dcbx_info;
1499         int rc = 0;
1500
1501         DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d\n", tcid);
1502         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1503         if (!dcbx_info)
1504                 return -EINVAL;
1505
1506         switch (tcid) {
1507         case DCB_NUMTCS_ATTR_PG:
1508                 *num = dcbx_info->operational.params.max_ets_tc;
1509                 break;
1510         case DCB_NUMTCS_ATTR_PFC:
1511                 *num = dcbx_info->operational.params.pfc.max_tc;
1512                 break;
1513         default:
1514                 rc = -EINVAL;
1515         }
1516
1517         kfree(dcbx_info);
1518         DP_VERBOSE(hwfn, QED_MSG_DCB, "numtcs = %d\n", *num);
1519
1520         return rc;
1521 }
1522
1523 static u8 qed_dcbnl_getpfcstate(struct qed_dev *cdev)
1524 {
1525         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1526         struct qed_dcbx_get *dcbx_info;
1527         bool enabled;
1528
1529         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1530         if (!dcbx_info)
1531                 return 0;
1532
1533         enabled = dcbx_info->operational.params.pfc.enabled;
1534         DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d\n", enabled);
1535         kfree(dcbx_info);
1536
1537         return enabled;
1538 }
1539
1540 static u8 qed_dcbnl_getdcbx(struct qed_dev *cdev)
1541 {
1542         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1543         struct qed_dcbx_get *dcbx_info;
1544         u8 mode = 0;
1545
1546         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1547         if (!dcbx_info)
1548                 return 0;
1549
1550         if (dcbx_info->operational.ieee)
1551                 mode |= DCB_CAP_DCBX_VER_IEEE;
1552         if (dcbx_info->operational.cee)
1553                 mode |= DCB_CAP_DCBX_VER_CEE;
1554         if (dcbx_info->operational.local)
1555                 mode |= DCB_CAP_DCBX_STATIC;
1556
1557         DP_VERBOSE(hwfn, QED_MSG_DCB, "dcb mode = %d\n", mode);
1558         kfree(dcbx_info);
1559
1560         return mode;
1561 }
1562
1563 static void qed_dcbnl_setpgtccfgtx(struct qed_dev *cdev,
1564                                    int tc,
1565                                    u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
1566 {
1567         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1568         struct qed_dcbx_set dcbx_set;
1569         struct qed_ptt *ptt;
1570         int rc;
1571
1572         DP_VERBOSE(hwfn, QED_MSG_DCB,
1573                    "tc = %d pri_type = %d pgid = %d bw_pct = %d up_map = %d\n",
1574                    tc, pri_type, pgid, bw_pct, up_map);
1575
1576         if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
1577                 DP_INFO(hwfn, "Invalid tc %d\n", tc);
1578                 return;
1579         }
1580
1581         memset(&dcbx_set, 0, sizeof(dcbx_set));
1582         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1583         if (rc)
1584                 return;
1585
1586         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1587         dcbx_set.config.params.ets_pri_tc_tbl[tc] = pgid;
1588
1589         ptt = qed_ptt_acquire(hwfn);
1590         if (!ptt)
1591                 return;
1592
1593         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1594
1595         qed_ptt_release(hwfn, ptt);
1596 }
1597
1598 static void qed_dcbnl_setpgtccfgrx(struct qed_dev *cdev, int prio,
1599                                    u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
1600 {
1601         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1602 }
1603
1604 static void qed_dcbnl_setpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 bw_pct)
1605 {
1606         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1607         struct qed_dcbx_set dcbx_set;
1608         struct qed_ptt *ptt;
1609         int rc;
1610
1611         DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d bw_pct = %d\n", pgid, bw_pct);
1612         if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
1613                 DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
1614                 return;
1615         }
1616
1617         memset(&dcbx_set, 0, sizeof(dcbx_set));
1618         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1619         if (rc)
1620                 return;
1621
1622         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1623         dcbx_set.config.params.ets_tc_bw_tbl[pgid] = bw_pct;
1624
1625         ptt = qed_ptt_acquire(hwfn);
1626         if (!ptt)
1627                 return;
1628
1629         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1630
1631         qed_ptt_release(hwfn, ptt);
1632 }
1633
1634 static void qed_dcbnl_setpgbwgcfgrx(struct qed_dev *cdev, int pgid, u8 bw_pct)
1635 {
1636         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1637 }
1638
1639 static u8 qed_dcbnl_setall(struct qed_dev *cdev)
1640 {
1641         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1642         struct qed_dcbx_set dcbx_set;
1643         struct qed_ptt *ptt;
1644         int rc;
1645
1646         memset(&dcbx_set, 0, sizeof(dcbx_set));
1647         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1648         if (rc)
1649                 return 1;
1650
1651         ptt = qed_ptt_acquire(hwfn);
1652         if (!ptt)
1653                 return 1;
1654
1655         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 1);
1656
1657         qed_ptt_release(hwfn, ptt);
1658
1659         return rc;
1660 }
1661
1662 static int qed_dcbnl_setnumtcs(struct qed_dev *cdev, int tcid, u8 num)
1663 {
1664         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1665         struct qed_dcbx_set dcbx_set;
1666         struct qed_ptt *ptt;
1667         int rc;
1668
1669         DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d num = %d\n", tcid, num);
1670         memset(&dcbx_set, 0, sizeof(dcbx_set));
1671         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1672         if (rc)
1673                 return 1;
1674
1675         switch (tcid) {
1676         case DCB_NUMTCS_ATTR_PG:
1677                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1678                 dcbx_set.config.params.max_ets_tc = num;
1679                 break;
1680         case DCB_NUMTCS_ATTR_PFC:
1681                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1682                 dcbx_set.config.params.pfc.max_tc = num;
1683                 break;
1684         default:
1685                 DP_INFO(hwfn, "Invalid tcid %d\n", tcid);
1686                 return -EINVAL;
1687         }
1688
1689         ptt = qed_ptt_acquire(hwfn);
1690         if (!ptt)
1691                 return -EINVAL;
1692
1693         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1694
1695         qed_ptt_release(hwfn, ptt);
1696
1697         return 0;
1698 }
1699
1700 static void qed_dcbnl_setpfcstate(struct qed_dev *cdev, u8 state)
1701 {
1702         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1703         struct qed_dcbx_set dcbx_set;
1704         struct qed_ptt *ptt;
1705         int rc;
1706
1707         DP_VERBOSE(hwfn, QED_MSG_DCB, "new state = %d\n", state);
1708
1709         memset(&dcbx_set, 0, sizeof(dcbx_set));
1710         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1711         if (rc)
1712                 return;
1713
1714         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1715         dcbx_set.config.params.pfc.enabled = !!state;
1716
1717         ptt = qed_ptt_acquire(hwfn);
1718         if (!ptt)
1719                 return;
1720
1721         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1722
1723         qed_ptt_release(hwfn, ptt);
1724 }
1725
1726 static int qed_dcbnl_getapp(struct qed_dev *cdev, u8 idtype, u16 idval)
1727 {
1728         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1729         struct qed_dcbx_get *dcbx_info;
1730         struct qed_app_entry *entry;
1731         bool ethtype;
1732         u8 prio = 0;
1733         int i;
1734
1735         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1736         if (!dcbx_info)
1737                 return -EINVAL;
1738
1739         ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
1740         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
1741                 entry = &dcbx_info->operational.params.app_entry[i];
1742                 if ((entry->ethtype == ethtype) && (entry->proto_id == idval)) {
1743                         prio = entry->prio;
1744                         break;
1745                 }
1746         }
1747
1748         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
1749                 DP_ERR(cdev, "App entry (%d, %d) not found\n", idtype, idval);
1750                 kfree(dcbx_info);
1751                 return -EINVAL;
1752         }
1753
1754         kfree(dcbx_info);
1755
1756         return prio;
1757 }
1758
1759 static int qed_dcbnl_setapp(struct qed_dev *cdev,
1760                             u8 idtype, u16 idval, u8 pri_map)
1761 {
1762         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1763         struct qed_dcbx_set dcbx_set;
1764         struct qed_app_entry *entry;
1765         struct qed_ptt *ptt;
1766         bool ethtype;
1767         int rc, i;
1768
1769         memset(&dcbx_set, 0, sizeof(dcbx_set));
1770         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1771         if (rc)
1772                 return -EINVAL;
1773
1774         ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
1775         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
1776                 entry = &dcbx_set.config.params.app_entry[i];
1777                 if ((entry->ethtype == ethtype) && (entry->proto_id == idval))
1778                         break;
1779                 /* First empty slot */
1780                 if (!entry->proto_id) {
1781                         dcbx_set.config.params.num_app_entries++;
1782                         break;
1783                 }
1784         }
1785
1786         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
1787                 DP_ERR(cdev, "App table is full\n");
1788                 return -EBUSY;
1789         }
1790
1791         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
1792         dcbx_set.config.params.app_entry[i].ethtype = ethtype;
1793         dcbx_set.config.params.app_entry[i].proto_id = idval;
1794         dcbx_set.config.params.app_entry[i].prio = pri_map;
1795
1796         ptt = qed_ptt_acquire(hwfn);
1797         if (!ptt)
1798                 return -EBUSY;
1799
1800         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1801
1802         qed_ptt_release(hwfn, ptt);
1803
1804         return rc;
1805 }
1806
1807 static u8 qed_dcbnl_setdcbx(struct qed_dev *cdev, u8 mode)
1808 {
1809         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1810         struct qed_dcbx_set dcbx_set;
1811         struct qed_ptt *ptt;
1812         int rc;
1813
1814         DP_VERBOSE(hwfn, QED_MSG_DCB, "new mode = %x\n", mode);
1815
1816         if (!(mode & DCB_CAP_DCBX_VER_IEEE) &&
1817             !(mode & DCB_CAP_DCBX_VER_CEE) && !(mode & DCB_CAP_DCBX_STATIC)) {
1818                 DP_INFO(hwfn, "Allowed modes are cee, ieee or static\n");
1819                 return 1;
1820         }
1821
1822         memset(&dcbx_set, 0, sizeof(dcbx_set));
1823         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1824         if (rc)
1825                 return 1;
1826
1827         dcbx_set.ver_num = 0;
1828         if (mode & DCB_CAP_DCBX_VER_CEE) {
1829                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1830                 dcbx_set.enabled = true;
1831         }
1832
1833         if (mode & DCB_CAP_DCBX_VER_IEEE) {
1834                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1835                 dcbx_set.enabled = true;
1836         }
1837
1838         if (mode & DCB_CAP_DCBX_STATIC) {
1839                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_STATIC;
1840                 dcbx_set.enabled = true;
1841         }
1842
1843         ptt = qed_ptt_acquire(hwfn);
1844         if (!ptt)
1845                 return 1;
1846
1847         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1848
1849         qed_ptt_release(hwfn, ptt);
1850
1851         return rc;
1852 }
1853
1854 static u8 qed_dcbnl_getfeatcfg(struct qed_dev *cdev, int featid, u8 *flags)
1855 {
1856         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1857         struct qed_dcbx_get *dcbx_info;
1858
1859         DP_VERBOSE(hwfn, QED_MSG_DCB, "Feature id  = %d\n", featid);
1860         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1861         if (!dcbx_info)
1862                 return 1;
1863
1864         *flags = 0;
1865         switch (featid) {
1866         case DCB_FEATCFG_ATTR_PG:
1867                 if (dcbx_info->operational.params.ets_enabled)
1868                         *flags = DCB_FEATCFG_ENABLE;
1869                 else
1870                         *flags = DCB_FEATCFG_ERROR;
1871                 break;
1872         case DCB_FEATCFG_ATTR_PFC:
1873                 if (dcbx_info->operational.params.pfc.enabled)
1874                         *flags = DCB_FEATCFG_ENABLE;
1875                 else
1876                         *flags = DCB_FEATCFG_ERROR;
1877                 break;
1878         case DCB_FEATCFG_ATTR_APP:
1879                 if (dcbx_info->operational.params.app_valid)
1880                         *flags = DCB_FEATCFG_ENABLE;
1881                 else
1882                         *flags = DCB_FEATCFG_ERROR;
1883                 break;
1884         default:
1885                 DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
1886                 kfree(dcbx_info);
1887                 return 1;
1888         }
1889
1890         DP_VERBOSE(hwfn, QED_MSG_DCB, "flags = %d\n", *flags);
1891         kfree(dcbx_info);
1892
1893         return 0;
1894 }
1895
1896 static u8 qed_dcbnl_setfeatcfg(struct qed_dev *cdev, int featid, u8 flags)
1897 {
1898         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1899         struct qed_dcbx_set dcbx_set;
1900         bool enabled, willing;
1901         struct qed_ptt *ptt;
1902         int rc;
1903
1904         DP_VERBOSE(hwfn, QED_MSG_DCB, "featid = %d flags = %d\n",
1905                    featid, flags);
1906         memset(&dcbx_set, 0, sizeof(dcbx_set));
1907         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1908         if (rc)
1909                 return 1;
1910
1911         enabled = !!(flags & DCB_FEATCFG_ENABLE);
1912         willing = !!(flags & DCB_FEATCFG_WILLING);
1913         switch (featid) {
1914         case DCB_FEATCFG_ATTR_PG:
1915                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1916                 dcbx_set.config.params.ets_enabled = enabled;
1917                 dcbx_set.config.params.ets_willing = willing;
1918                 break;
1919         case DCB_FEATCFG_ATTR_PFC:
1920                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1921                 dcbx_set.config.params.pfc.enabled = enabled;
1922                 dcbx_set.config.params.pfc.willing = willing;
1923                 break;
1924         case DCB_FEATCFG_ATTR_APP:
1925                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
1926                 dcbx_set.config.params.app_willing = willing;
1927                 break;
1928         default:
1929                 DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
1930                 return 1;
1931         }
1932
1933         ptt = qed_ptt_acquire(hwfn);
1934         if (!ptt)
1935                 return 1;
1936
1937         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1938
1939         qed_ptt_release(hwfn, ptt);
1940
1941         return 0;
1942 }
1943
1944 static int qed_dcbnl_peer_getappinfo(struct qed_dev *cdev,
1945                                      struct dcb_peer_app_info *info,
1946                                      u16 *app_count)
1947 {
1948         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1949         struct qed_dcbx_get *dcbx_info;
1950
1951         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1952         if (!dcbx_info)
1953                 return -EINVAL;
1954
1955         info->willing = dcbx_info->remote.params.app_willing;
1956         info->error = dcbx_info->remote.params.app_error;
1957         *app_count = dcbx_info->remote.params.num_app_entries;
1958         kfree(dcbx_info);
1959
1960         return 0;
1961 }
1962
1963 static int qed_dcbnl_peer_getapptable(struct qed_dev *cdev,
1964                                       struct dcb_app *table)
1965 {
1966         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1967         struct qed_dcbx_get *dcbx_info;
1968         int i;
1969
1970         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1971         if (!dcbx_info)
1972                 return -EINVAL;
1973
1974         for (i = 0; i < dcbx_info->remote.params.num_app_entries; i++) {
1975                 if (dcbx_info->remote.params.app_entry[i].ethtype)
1976                         table[i].selector = DCB_APP_IDTYPE_ETHTYPE;
1977                 else
1978                         table[i].selector = DCB_APP_IDTYPE_PORTNUM;
1979                 table[i].priority = dcbx_info->remote.params.app_entry[i].prio;
1980                 table[i].protocol =
1981                     dcbx_info->remote.params.app_entry[i].proto_id;
1982         }
1983
1984         kfree(dcbx_info);
1985
1986         return 0;
1987 }
1988
1989 static int qed_dcbnl_cee_peer_getpfc(struct qed_dev *cdev, struct cee_pfc *pfc)
1990 {
1991         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1992         struct qed_dcbx_get *dcbx_info;
1993         int i;
1994
1995         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1996         if (!dcbx_info)
1997                 return -EINVAL;
1998
1999         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2000                 if (dcbx_info->remote.params.pfc.prio[i])
2001                         pfc->pfc_en |= BIT(i);
2002
2003         pfc->tcs_supported = dcbx_info->remote.params.pfc.max_tc;
2004         DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d tcs_supported = %d\n",
2005                    pfc->pfc_en, pfc->tcs_supported);
2006         kfree(dcbx_info);
2007
2008         return 0;
2009 }
2010
2011 static int qed_dcbnl_cee_peer_getpg(struct qed_dev *cdev, struct cee_pg *pg)
2012 {
2013         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2014         struct qed_dcbx_get *dcbx_info;
2015         int i;
2016
2017         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
2018         if (!dcbx_info)
2019                 return -EINVAL;
2020
2021         pg->willing = dcbx_info->remote.params.ets_willing;
2022         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
2023                 pg->pg_bw[i] = dcbx_info->remote.params.ets_tc_bw_tbl[i];
2024                 pg->prio_pg[i] = dcbx_info->remote.params.ets_pri_tc_tbl[i];
2025         }
2026
2027         DP_VERBOSE(hwfn, QED_MSG_DCB, "willing = %d", pg->willing);
2028         kfree(dcbx_info);
2029
2030         return 0;
2031 }
2032
2033 static int qed_dcbnl_get_ieee_pfc(struct qed_dev *cdev,
2034                                   struct ieee_pfc *pfc, bool remote)
2035 {
2036         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2037         struct qed_dcbx_params *params;
2038         struct qed_dcbx_get *dcbx_info;
2039         int rc, i;
2040
2041         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2042         if (!dcbx_info)
2043                 return -EINVAL;
2044
2045         if (!dcbx_info->operational.ieee) {
2046                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2047                 kfree(dcbx_info);
2048                 return -EINVAL;
2049         }
2050
2051         if (remote) {
2052                 memset(dcbx_info, 0, sizeof(*dcbx_info));
2053                 rc = qed_dcbx_query_params(hwfn, dcbx_info,
2054                                            QED_DCBX_REMOTE_MIB);
2055                 if (rc) {
2056                         kfree(dcbx_info);
2057                         return -EINVAL;
2058                 }
2059
2060                 params = &dcbx_info->remote.params;
2061         } else {
2062                 params = &dcbx_info->operational.params;
2063         }
2064
2065         pfc->pfc_cap = params->pfc.max_tc;
2066         pfc->pfc_en = 0;
2067         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2068                 if (params->pfc.prio[i])
2069                         pfc->pfc_en |= BIT(i);
2070
2071         kfree(dcbx_info);
2072
2073         return 0;
2074 }
2075
2076 static int qed_dcbnl_ieee_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2077 {
2078         return qed_dcbnl_get_ieee_pfc(cdev, pfc, false);
2079 }
2080
2081 static int qed_dcbnl_ieee_setpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2082 {
2083         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2084         struct qed_dcbx_get *dcbx_info;
2085         struct qed_dcbx_set dcbx_set;
2086         struct qed_ptt *ptt;
2087         int rc, i;
2088
2089         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2090         if (!dcbx_info)
2091                 return -EINVAL;
2092
2093         if (!dcbx_info->operational.ieee) {
2094                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2095                 kfree(dcbx_info);
2096                 return -EINVAL;
2097         }
2098
2099         kfree(dcbx_info);
2100
2101         memset(&dcbx_set, 0, sizeof(dcbx_set));
2102         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2103         if (rc)
2104                 return -EINVAL;
2105
2106         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
2107         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2108                 dcbx_set.config.params.pfc.prio[i] = !!(pfc->pfc_en & BIT(i));
2109
2110         dcbx_set.config.params.pfc.max_tc = pfc->pfc_cap;
2111
2112         ptt = qed_ptt_acquire(hwfn);
2113         if (!ptt)
2114                 return -EINVAL;
2115
2116         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2117
2118         qed_ptt_release(hwfn, ptt);
2119
2120         return rc;
2121 }
2122
2123 static int qed_dcbnl_get_ieee_ets(struct qed_dev *cdev,
2124                                   struct ieee_ets *ets, bool remote)
2125 {
2126         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2127         struct qed_dcbx_get *dcbx_info;
2128         struct qed_dcbx_params *params;
2129         int rc;
2130
2131         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2132         if (!dcbx_info)
2133                 return -EINVAL;
2134
2135         if (!dcbx_info->operational.ieee) {
2136                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2137                 kfree(dcbx_info);
2138                 return -EINVAL;
2139         }
2140
2141         if (remote) {
2142                 memset(dcbx_info, 0, sizeof(*dcbx_info));
2143                 rc = qed_dcbx_query_params(hwfn, dcbx_info,
2144                                            QED_DCBX_REMOTE_MIB);
2145                 if (rc) {
2146                         kfree(dcbx_info);
2147                         return -EINVAL;
2148                 }
2149
2150                 params = &dcbx_info->remote.params;
2151         } else {
2152                 params = &dcbx_info->operational.params;
2153         }
2154
2155         ets->ets_cap = params->max_ets_tc;
2156         ets->willing = params->ets_willing;
2157         ets->cbs = params->ets_cbs;
2158         memcpy(ets->tc_tx_bw, params->ets_tc_bw_tbl, sizeof(ets->tc_tx_bw));
2159         memcpy(ets->tc_tsa, params->ets_tc_tsa_tbl, sizeof(ets->tc_tsa));
2160         memcpy(ets->prio_tc, params->ets_pri_tc_tbl, sizeof(ets->prio_tc));
2161         kfree(dcbx_info);
2162
2163         return 0;
2164 }
2165
2166 static int qed_dcbnl_ieee_getets(struct qed_dev *cdev, struct ieee_ets *ets)
2167 {
2168         return qed_dcbnl_get_ieee_ets(cdev, ets, false);
2169 }
2170
2171 static int qed_dcbnl_ieee_setets(struct qed_dev *cdev, struct ieee_ets *ets)
2172 {
2173         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2174         struct qed_dcbx_get *dcbx_info;
2175         struct qed_dcbx_set dcbx_set;
2176         struct qed_ptt *ptt;
2177         int rc;
2178
2179         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2180         if (!dcbx_info)
2181                 return -EINVAL;
2182
2183         if (!dcbx_info->operational.ieee) {
2184                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2185                 kfree(dcbx_info);
2186                 return -EINVAL;
2187         }
2188
2189         kfree(dcbx_info);
2190
2191         memset(&dcbx_set, 0, sizeof(dcbx_set));
2192         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2193         if (rc)
2194                 return -EINVAL;
2195
2196         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
2197         dcbx_set.config.params.max_ets_tc = ets->ets_cap;
2198         dcbx_set.config.params.ets_willing = ets->willing;
2199         dcbx_set.config.params.ets_cbs = ets->cbs;
2200         memcpy(dcbx_set.config.params.ets_tc_bw_tbl, ets->tc_tx_bw,
2201                sizeof(ets->tc_tx_bw));
2202         memcpy(dcbx_set.config.params.ets_tc_tsa_tbl, ets->tc_tsa,
2203                sizeof(ets->tc_tsa));
2204         memcpy(dcbx_set.config.params.ets_pri_tc_tbl, ets->prio_tc,
2205                sizeof(ets->prio_tc));
2206
2207         ptt = qed_ptt_acquire(hwfn);
2208         if (!ptt)
2209                 return -EINVAL;
2210
2211         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2212
2213         qed_ptt_release(hwfn, ptt);
2214
2215         return rc;
2216 }
2217
2218 static int
2219 qed_dcbnl_ieee_peer_getets(struct qed_dev *cdev, struct ieee_ets *ets)
2220 {
2221         return qed_dcbnl_get_ieee_ets(cdev, ets, true);
2222 }
2223
2224 static int
2225 qed_dcbnl_ieee_peer_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2226 {
2227         return qed_dcbnl_get_ieee_pfc(cdev, pfc, true);
2228 }
2229
2230 static int qed_get_sf_ieee_value(u8 selector, u8 *sf_ieee)
2231 {
2232         switch (selector) {
2233         case IEEE_8021QAZ_APP_SEL_ETHERTYPE:
2234                 *sf_ieee = QED_DCBX_SF_IEEE_ETHTYPE;
2235                 break;
2236         case IEEE_8021QAZ_APP_SEL_STREAM:
2237                 *sf_ieee = QED_DCBX_SF_IEEE_TCP_PORT;
2238                 break;
2239         case IEEE_8021QAZ_APP_SEL_DGRAM:
2240                 *sf_ieee = QED_DCBX_SF_IEEE_UDP_PORT;
2241                 break;
2242         case IEEE_8021QAZ_APP_SEL_ANY:
2243                 *sf_ieee = QED_DCBX_SF_IEEE_TCP_UDP_PORT;
2244                 break;
2245         default:
2246                 return -EINVAL;
2247         }
2248
2249         return 0;
2250 }
2251
2252 static int qed_dcbnl_ieee_getapp(struct qed_dev *cdev, struct dcb_app *app)
2253 {
2254         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2255         struct qed_dcbx_get *dcbx_info;
2256         struct qed_app_entry *entry;
2257         u8 prio = 0;
2258         u8 sf_ieee;
2259         int i;
2260
2261         DP_VERBOSE(hwfn, QED_MSG_DCB, "selector = %d protocol = %d\n",
2262                    app->selector, app->protocol);
2263
2264         if (qed_get_sf_ieee_value(app->selector, &sf_ieee)) {
2265                 DP_INFO(cdev, "Invalid selector field value %d\n",
2266                         app->selector);
2267                 return -EINVAL;
2268         }
2269
2270         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2271         if (!dcbx_info)
2272                 return -EINVAL;
2273
2274         if (!dcbx_info->operational.ieee) {
2275                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2276                 kfree(dcbx_info);
2277                 return -EINVAL;
2278         }
2279
2280         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
2281                 entry = &dcbx_info->operational.params.app_entry[i];
2282                 if ((entry->sf_ieee == sf_ieee) &&
2283                     (entry->proto_id == app->protocol)) {
2284                         prio = entry->prio;
2285                         break;
2286                 }
2287         }
2288
2289         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
2290                 DP_ERR(cdev, "App entry (%d, %d) not found\n", app->selector,
2291                        app->protocol);
2292                 kfree(dcbx_info);
2293                 return -EINVAL;
2294         }
2295
2296         app->priority = ffs(prio) - 1;
2297
2298         kfree(dcbx_info);
2299
2300         return 0;
2301 }
2302
2303 static int qed_dcbnl_ieee_setapp(struct qed_dev *cdev, struct dcb_app *app)
2304 {
2305         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2306         struct qed_dcbx_get *dcbx_info;
2307         struct qed_dcbx_set dcbx_set;
2308         struct qed_app_entry *entry;
2309         struct qed_ptt *ptt;
2310         u8 sf_ieee;
2311         int rc, i;
2312
2313         DP_VERBOSE(hwfn, QED_MSG_DCB, "selector = %d protocol = %d pri = %d\n",
2314                    app->selector, app->protocol, app->priority);
2315         if (app->priority >= QED_MAX_PFC_PRIORITIES) {
2316                 DP_INFO(hwfn, "Invalid priority %d\n", app->priority);
2317                 return -EINVAL;
2318         }
2319
2320         if (qed_get_sf_ieee_value(app->selector, &sf_ieee)) {
2321                 DP_INFO(cdev, "Invalid selector field value %d\n",
2322                         app->selector);
2323                 return -EINVAL;
2324         }
2325
2326         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2327         if (!dcbx_info)
2328                 return -EINVAL;
2329
2330         if (!dcbx_info->operational.ieee) {
2331                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2332                 kfree(dcbx_info);
2333                 return -EINVAL;
2334         }
2335
2336         kfree(dcbx_info);
2337
2338         memset(&dcbx_set, 0, sizeof(dcbx_set));
2339         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2340         if (rc)
2341                 return -EINVAL;
2342
2343         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
2344                 entry = &dcbx_set.config.params.app_entry[i];
2345                 if ((entry->sf_ieee == sf_ieee) &&
2346                     (entry->proto_id == app->protocol))
2347                         break;
2348                 /* First empty slot */
2349                 if (!entry->proto_id) {
2350                         dcbx_set.config.params.num_app_entries++;
2351                         break;
2352                 }
2353         }
2354
2355         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
2356                 DP_ERR(cdev, "App table is full\n");
2357                 return -EBUSY;
2358         }
2359
2360         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
2361         dcbx_set.config.params.app_entry[i].sf_ieee = sf_ieee;
2362         dcbx_set.config.params.app_entry[i].proto_id = app->protocol;
2363         dcbx_set.config.params.app_entry[i].prio = BIT(app->priority);
2364
2365         ptt = qed_ptt_acquire(hwfn);
2366         if (!ptt)
2367                 return -EBUSY;
2368
2369         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2370
2371         qed_ptt_release(hwfn, ptt);
2372
2373         return rc;
2374 }
2375
2376 const struct qed_eth_dcbnl_ops qed_dcbnl_ops_pass = {
2377         .getstate = qed_dcbnl_getstate,
2378         .setstate = qed_dcbnl_setstate,
2379         .getpgtccfgtx = qed_dcbnl_getpgtccfgtx,
2380         .getpgbwgcfgtx = qed_dcbnl_getpgbwgcfgtx,
2381         .getpgtccfgrx = qed_dcbnl_getpgtccfgrx,
2382         .getpgbwgcfgrx = qed_dcbnl_getpgbwgcfgrx,
2383         .getpfccfg = qed_dcbnl_getpfccfg,
2384         .setpfccfg = qed_dcbnl_setpfccfg,
2385         .getcap = qed_dcbnl_getcap,
2386         .getnumtcs = qed_dcbnl_getnumtcs,
2387         .getpfcstate = qed_dcbnl_getpfcstate,
2388         .getdcbx = qed_dcbnl_getdcbx,
2389         .setpgtccfgtx = qed_dcbnl_setpgtccfgtx,
2390         .setpgtccfgrx = qed_dcbnl_setpgtccfgrx,
2391         .setpgbwgcfgtx = qed_dcbnl_setpgbwgcfgtx,
2392         .setpgbwgcfgrx = qed_dcbnl_setpgbwgcfgrx,
2393         .setall = qed_dcbnl_setall,
2394         .setnumtcs = qed_dcbnl_setnumtcs,
2395         .setpfcstate = qed_dcbnl_setpfcstate,
2396         .setapp = qed_dcbnl_setapp,
2397         .setdcbx = qed_dcbnl_setdcbx,
2398         .setfeatcfg = qed_dcbnl_setfeatcfg,
2399         .getfeatcfg = qed_dcbnl_getfeatcfg,
2400         .getapp = qed_dcbnl_getapp,
2401         .peer_getappinfo = qed_dcbnl_peer_getappinfo,
2402         .peer_getapptable = qed_dcbnl_peer_getapptable,
2403         .cee_peer_getpfc = qed_dcbnl_cee_peer_getpfc,
2404         .cee_peer_getpg = qed_dcbnl_cee_peer_getpg,
2405         .ieee_getpfc = qed_dcbnl_ieee_getpfc,
2406         .ieee_setpfc = qed_dcbnl_ieee_setpfc,
2407         .ieee_getets = qed_dcbnl_ieee_getets,
2408         .ieee_setets = qed_dcbnl_ieee_setets,
2409         .ieee_peer_getpfc = qed_dcbnl_ieee_peer_getpfc,
2410         .ieee_peer_getets = qed_dcbnl_ieee_peer_getets,
2411         .ieee_getapp = qed_dcbnl_ieee_getapp,
2412         .ieee_setapp = qed_dcbnl_ieee_setapp,
2413 };
2414
2415 #endif