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,
 259                        "No action required, App TLV id = 0x%x app_prio_bitmap = 0x%x\n",
 260                        id, app_prio_bitmap);
 261                 return false;
 262         }
 263
 264         return true;
 265 }
 266
 267 /* Parse app TLV's to update TC information in hw_info structure for
 268  * reconfiguring QM. Get protocol specific data for PF update ramrod command.
 269  */
 270 static int
 271 qed_dcbx_process_tlv(struct qed_hwfn *p_hwfn,
 272                      struct qed_dcbx_results *p_data,
 273                      struct dcbx_app_priority_entry *p_tbl,
 274                      u32 pri_tc_tbl, int count, u8 dcbx_version)
 275 {
 276         enum dcbx_protocol_type type;
 277         bool enable, ieee, eth_tlv;
 278         u8 tc, priority_map;
 279         u16 protocol_id;
 280         int priority;
 281         int i;
 282
 283         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Num APP entries = %d\n", count);
 284
 285         ieee = (dcbx_version == DCBX_CONFIG_VERSION_IEEE);
 286         eth_tlv = false;
 287         /* Parse APP TLV */
 288         for (i = 0; i < count; i++) {
 289                 protocol_id = QED_MFW_GET_FIELD(p_tbl[i].entry,
 290                                                 DCBX_APP_PROTOCOL_ID);
 291                 priority_map = QED_MFW_GET_FIELD(p_tbl[i].entry,
 292                                                  DCBX_APP_PRI_MAP);
 293                 priority = ffs(priority_map) - 1;
 294                 if (priority < 0) {
 295                         DP_ERR(p_hwfn, "Invalid priority\n");
 296                         return -EINVAL;
 297                 }
 298
 299                 tc = QED_DCBX_PRIO2TC(pri_tc_tbl, priority);
 300                 if (qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
 301                                                    protocol_id, &type, ieee)) {
 302                         /* ETH always have the enable bit reset, as it gets
 303                          * vlan information per packet. For other protocols,
 304                          * should be set according to the dcbx_enabled
 305                          * indication, but we only got here if there was an
 306                          * app tlv for the protocol, so dcbx must be enabled.
 307                          */
 308                         if (type == DCBX_PROTOCOL_ETH) {
 309                                 enable = false;
 310                                 eth_tlv = true;
 311                         } else {
 312                                 enable = true;
 313                         }
 314
 315                         qed_dcbx_update_app_info(p_data, p_hwfn, enable,
 316                                                  priority, tc, type);
 317                 }
 318         }
 319
 320         /* If Eth TLV is not detected, use UFP TC as default TC */
 321         if (test_bit(QED_MF_UFP_SPECIFIC, &p_hwfn->cdev->mf_bits) && !eth_tlv)
 322                 p_data->arr[DCBX_PROTOCOL_ETH].tc = p_hwfn->ufp_info.tc;
 323
 324         /* Update ramrod protocol data and hw_info fields
 325          * with default info when corresponding APP TLV's are not detected.
 326          * The enabled field has a different logic for ethernet as only for
 327          * ethernet dcb should disabled by default, as the information arrives
 328          * from the OS (unless an explicit app tlv was present).
 329          */
 330         tc = p_data->arr[DCBX_PROTOCOL_ETH].tc;
 331         priority = p_data->arr[DCBX_PROTOCOL_ETH].priority;
 332         for (type = 0; type < DCBX_MAX_PROTOCOL_TYPE; type++) {
 333                 if (p_data->arr[type].update)
 334                         continue;
 335
 336                 enable = (type == DCBX_PROTOCOL_ETH) ? false : !!dcbx_version;
 337                 qed_dcbx_update_app_info(p_data, p_hwfn, enable,
 338                                          priority, tc, type);
 339         }
 340
 341         return 0;
 342 }
 343
 344 /* Parse app TLV's to update TC information in hw_info structure for
 345  * reconfiguring QM. Get protocol specific data for PF update ramrod command.
 346  */
 347 static int qed_dcbx_process_mib_info(struct qed_hwfn *p_hwfn)
 348 {
 349         struct dcbx_app_priority_feature *p_app;
 350         struct dcbx_app_priority_entry *p_tbl;
 351         struct qed_dcbx_results data = { 0 };
 352         struct dcbx_ets_feature *p_ets;
 353         struct qed_hw_info *p_info;
 354         u32 pri_tc_tbl, flags;
 355         u8 dcbx_version;
 356         int num_entries;
 357         int rc = 0;
 358
 359         flags = p_hwfn->p_dcbx_info->operational.flags;
 360         dcbx_version = QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION);
 361
 362         p_app = &p_hwfn->p_dcbx_info->operational.features.app;
 363         p_tbl = p_app->app_pri_tbl;
 364
 365         p_ets = &p_hwfn->p_dcbx_info->operational.features.ets;
 366         pri_tc_tbl = p_ets->pri_tc_tbl[0];
 367
 368         p_info = &p_hwfn->hw_info;
 369         num_entries = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_NUM_ENTRIES);
 370
 371         rc = qed_dcbx_process_tlv(p_hwfn, &data, p_tbl, pri_tc_tbl,
 372                                   num_entries, dcbx_version);
 373         if (rc)
 374                 return rc;
 375
 376         p_info->num_active_tc = QED_MFW_GET_FIELD(p_ets->flags,
 377                                                   DCBX_ETS_MAX_TCS);
 378         p_hwfn->qm_info.ooo_tc = QED_MFW_GET_FIELD(p_ets->flags, DCBX_OOO_TC);
 379         data.pf_id = p_hwfn->rel_pf_id;
 380         data.dcbx_enabled = !!dcbx_version;
 381
 382         qed_dcbx_dp_protocol(p_hwfn, &data);
 383
 384         memcpy(&p_hwfn->p_dcbx_info->results, &data,
 385                sizeof(struct qed_dcbx_results));
 386
 387         return 0;
 388 }
 389
 390 static int
 391 qed_dcbx_copy_mib(struct qed_hwfn *p_hwfn,
 392                   struct qed_ptt *p_ptt,
 393                   struct qed_dcbx_mib_meta_data *p_data,
 394                   enum qed_mib_read_type type)
 395 {
 396         u32 prefix_seq_num, suffix_seq_num;
 397         int read_count = 0;
 398         int rc = 0;
 399
 400         /* The data is considered to be valid only if both sequence numbers are
 401          * the same.
 402          */
 403         do {
 404                 if (type == QED_DCBX_REMOTE_LLDP_MIB) {
 405                         qed_memcpy_from(p_hwfn, p_ptt, p_data->lldp_remote,
 406                                         p_data->addr, p_data->size);
 407                         prefix_seq_num = p_data->lldp_remote->prefix_seq_num;
 408                         suffix_seq_num = p_data->lldp_remote->suffix_seq_num;
 409                 } else {
 410                         qed_memcpy_from(p_hwfn, p_ptt, p_data->mib,
 411                                         p_data->addr, p_data->size);
 412                         prefix_seq_num = p_data->mib->prefix_seq_num;
 413                         suffix_seq_num = p_data->mib->suffix_seq_num;
 414                 }
 415                 read_count++;
 416
 417                 DP_VERBOSE(p_hwfn,
 418                            QED_MSG_DCB,
 419                            "mib type = %d, try count = %d prefix seq num  = %d suffix seq num = %d\n",
 420                            type, read_count, prefix_seq_num, suffix_seq_num);
 421         } while ((prefix_seq_num != suffix_seq_num) &&
 422                  (read_count < QED_DCBX_MAX_MIB_READ_TRY));
 423
 424         if (read_count >= QED_DCBX_MAX_MIB_READ_TRY) {
 425                 DP_ERR(p_hwfn,
 426                        "MIB read err, mib type = %d, try count = %d prefix seq num = %d suffix seq num = %d\n",
 427                        type, read_count, prefix_seq_num, suffix_seq_num);
 428                 rc = -EIO;
 429         }
 430
 431         return rc;
 432 }
 433
 434 static void
 435 qed_dcbx_get_priority_info(struct qed_hwfn *p_hwfn,
 436                            struct qed_dcbx_app_prio *p_prio,
 437                            struct qed_dcbx_results *p_results)
 438 {
 439         u8 val;
 440
 441         p_prio->roce = QED_DCBX_INVALID_PRIORITY;
 442         p_prio->roce_v2 = QED_DCBX_INVALID_PRIORITY;
 443         p_prio->iscsi = QED_DCBX_INVALID_PRIORITY;
 444         p_prio->fcoe = QED_DCBX_INVALID_PRIORITY;
 445
 446         if (p_results->arr[DCBX_PROTOCOL_ROCE].update &&
 447             p_results->arr[DCBX_PROTOCOL_ROCE].enable)
 448                 p_prio->roce = p_results->arr[DCBX_PROTOCOL_ROCE].priority;
 449
 450         if (p_results->arr[DCBX_PROTOCOL_ROCE_V2].update &&
 451             p_results->arr[DCBX_PROTOCOL_ROCE_V2].enable) {
 452                 val = p_results->arr[DCBX_PROTOCOL_ROCE_V2].priority;
 453                 p_prio->roce_v2 = val;
 454         }
 455
 456         if (p_results->arr[DCBX_PROTOCOL_ISCSI].update &&
 457             p_results->arr[DCBX_PROTOCOL_ISCSI].enable)
 458                 p_prio->iscsi = p_results->arr[DCBX_PROTOCOL_ISCSI].priority;
 459
 460         if (p_results->arr[DCBX_PROTOCOL_FCOE].update &&
 461             p_results->arr[DCBX_PROTOCOL_FCOE].enable)
 462                 p_prio->fcoe = p_results->arr[DCBX_PROTOCOL_FCOE].priority;
 463
 464         if (p_results->arr[DCBX_PROTOCOL_ETH].update &&
 465             p_results->arr[DCBX_PROTOCOL_ETH].enable)
 466                 p_prio->eth = p_results->arr[DCBX_PROTOCOL_ETH].priority;
 467
 468         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 469                    "Priorities: iscsi %d, roce %d, roce v2 %d, fcoe %d, eth %d\n",
 470                    p_prio->iscsi, p_prio->roce, p_prio->roce_v2, p_prio->fcoe,
 471                    p_prio->eth);
 472 }
 473
 474 static void
 475 qed_dcbx_get_app_data(struct qed_hwfn *p_hwfn,
 476                       struct dcbx_app_priority_feature *p_app,
 477                       struct dcbx_app_priority_entry *p_tbl,
 478                       struct qed_dcbx_params *p_params, bool ieee)
 479 {
 480         struct qed_app_entry *entry;
 481         u8 pri_map;
 482         int i;
 483
 484         p_params->app_willing = QED_MFW_GET_FIELD(p_app->flags,
 485                                                   DCBX_APP_WILLING);
 486         p_params->app_valid = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_ENABLED);
 487         p_params->app_error = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_ERROR);
 488         p_params->num_app_entries = QED_MFW_GET_FIELD(p_app->flags,
 489                                                       DCBX_APP_NUM_ENTRIES);
 490         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
 491                 entry = &p_params->app_entry[i];
 492                 if (ieee) {
 493                         u8 sf_ieee;
 494                         u32 val;
 495
 496                         sf_ieee = QED_MFW_GET_FIELD(p_tbl[i].entry,
 497                                                     DCBX_APP_SF_IEEE);
 498                         switch (sf_ieee) {
 499                         case DCBX_APP_SF_IEEE_RESERVED:
 500                                 /* Old MFW */
 501                                 val = QED_MFW_GET_FIELD(p_tbl[i].entry,
 502                                                         DCBX_APP_SF);
 503                                 entry->sf_ieee = val ?
 504                                     QED_DCBX_SF_IEEE_TCP_UDP_PORT :
 505                                     QED_DCBX_SF_IEEE_ETHTYPE;
 506                                 break;
 507                         case DCBX_APP_SF_IEEE_ETHTYPE:
 508                                 entry->sf_ieee = QED_DCBX_SF_IEEE_ETHTYPE;
 509                                 break;
 510                         case DCBX_APP_SF_IEEE_TCP_PORT:
 511                                 entry->sf_ieee = QED_DCBX_SF_IEEE_TCP_PORT;
 512                                 break;
 513                         case DCBX_APP_SF_IEEE_UDP_PORT:
 514                                 entry->sf_ieee = QED_DCBX_SF_IEEE_UDP_PORT;
 515                                 break;
 516                         case DCBX_APP_SF_IEEE_TCP_UDP_PORT:
 517                                 entry->sf_ieee = QED_DCBX_SF_IEEE_TCP_UDP_PORT;
 518                                 break;
 519                         }
 520                 } else {
 521                         entry->ethtype = !(QED_MFW_GET_FIELD(p_tbl[i].entry,
 522                                                              DCBX_APP_SF));
 523                 }
 524
 525                 pri_map = QED_MFW_GET_FIELD(p_tbl[i].entry, DCBX_APP_PRI_MAP);
 526                 entry->prio = ffs(pri_map) - 1;
 527                 entry->proto_id = QED_MFW_GET_FIELD(p_tbl[i].entry,
 528                                                     DCBX_APP_PROTOCOL_ID);
 529                 qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
 530                                                entry->proto_id,
 531                                                &entry->proto_type, ieee);
 532         }
 533
 534         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 535                    "APP params: willing %d, valid %d error = %d\n",
 536                    p_params->app_willing, p_params->app_valid,
 537                    p_params->app_error);
 538 }
 539
 540 static void
 541 qed_dcbx_get_pfc_data(struct qed_hwfn *p_hwfn,
 542                       u32 pfc, struct qed_dcbx_params *p_params)
 543 {
 544         u8 pfc_map;
 545
 546         p_params->pfc.willing = QED_MFW_GET_FIELD(pfc, DCBX_PFC_WILLING);
 547         p_params->pfc.max_tc = QED_MFW_GET_FIELD(pfc, DCBX_PFC_CAPS);
 548         p_params->pfc.enabled = QED_MFW_GET_FIELD(pfc, DCBX_PFC_ENABLED);
 549         pfc_map = QED_MFW_GET_FIELD(pfc, DCBX_PFC_PRI_EN_BITMAP);
 550         p_params->pfc.prio[0] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_0);
 551         p_params->pfc.prio[1] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_1);
 552         p_params->pfc.prio[2] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_2);
 553         p_params->pfc.prio[3] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_3);
 554         p_params->pfc.prio[4] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_4);
 555         p_params->pfc.prio[5] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_5);
 556         p_params->pfc.prio[6] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_6);
 557         p_params->pfc.prio[7] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_7);
 558
 559         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 560                    "PFC params: willing %d, pfc_bitmap %u max_tc = %u enabled = %d\n",
 561                    p_params->pfc.willing, pfc_map, p_params->pfc.max_tc,
 562                    p_params->pfc.enabled);
 563 }
 564
 565 static void
 566 qed_dcbx_get_ets_data(struct qed_hwfn *p_hwfn,
 567                       struct dcbx_ets_feature *p_ets,
 568                       struct qed_dcbx_params *p_params)
 569 {
 570         u32 bw_map[2], tsa_map[2], pri_map;
 571         int i;
 572
 573         p_params->ets_willing = QED_MFW_GET_FIELD(p_ets->flags,
 574                                                   DCBX_ETS_WILLING);
 575         p_params->ets_enabled = QED_MFW_GET_FIELD(p_ets->flags,
 576                                                   DCBX_ETS_ENABLED);
 577         p_params->ets_cbs = QED_MFW_GET_FIELD(p_ets->flags, DCBX_ETS_CBS);
 578         p_params->max_ets_tc = QED_MFW_GET_FIELD(p_ets->flags,
 579                                                  DCBX_ETS_MAX_TCS);
 580         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 581                    "ETS params: willing %d, enabled = %d ets_cbs %d pri_tc_tbl_0 %x max_ets_tc %d\n",
 582                    p_params->ets_willing, p_params->ets_enabled,
 583                    p_params->ets_cbs, p_ets->pri_tc_tbl[0],
 584                    p_params->max_ets_tc);
 585
 586         if (p_params->ets_enabled && !p_params->max_ets_tc) {
 587                 p_params->max_ets_tc = QED_MAX_PFC_PRIORITIES;
 588                 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 589                            "ETS params: max_ets_tc is forced to %d\n",
 590                 p_params->max_ets_tc);
 591         }
 592
 593         /* 8 bit tsa and bw data corresponding to each of the 8 TC's are
 594          * encoded in a type u32 array of size 2.
 595          */
 596         bw_map[0] = be32_to_cpu(p_ets->tc_bw_tbl[0]);
 597         bw_map[1] = be32_to_cpu(p_ets->tc_bw_tbl[1]);
 598         tsa_map[0] = be32_to_cpu(p_ets->tc_tsa_tbl[0]);
 599         tsa_map[1] = be32_to_cpu(p_ets->tc_tsa_tbl[1]);
 600         pri_map = p_ets->pri_tc_tbl[0];
 601         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
 602                 p_params->ets_tc_bw_tbl[i] = ((u8 *)bw_map)[i];
 603                 p_params->ets_tc_tsa_tbl[i] = ((u8 *)tsa_map)[i];
 604                 p_params->ets_pri_tc_tbl[i] = QED_DCBX_PRIO2TC(pri_map, i);
 605                 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 606                            "elem %d  bw_tbl %x tsa_tbl %x\n",
 607                            i, p_params->ets_tc_bw_tbl[i],
 608                            p_params->ets_tc_tsa_tbl[i]);
 609         }
 610 }
 611
 612 static void
 613 qed_dcbx_get_common_params(struct qed_hwfn *p_hwfn,
 614                            struct dcbx_app_priority_feature *p_app,
 615                            struct dcbx_app_priority_entry *p_tbl,
 616                            struct dcbx_ets_feature *p_ets,
 617                            u32 pfc, struct qed_dcbx_params *p_params, bool ieee)
 618 {
 619         qed_dcbx_get_app_data(p_hwfn, p_app, p_tbl, p_params, ieee);
 620         qed_dcbx_get_ets_data(p_hwfn, p_ets, p_params);
 621         qed_dcbx_get_pfc_data(p_hwfn, pfc, p_params);
 622 }
 623
 624 static void
 625 qed_dcbx_get_local_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *params)
 626 {
 627         struct dcbx_features *p_feat;
 628
 629         p_feat = &p_hwfn->p_dcbx_info->local_admin.features;
 630         qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
 631                                    p_feat->app.app_pri_tbl, &p_feat->ets,
 632                                    p_feat->pfc, &params->local.params, false);
 633         params->local.valid = true;
 634 }
 635
 636 static void
 637 qed_dcbx_get_remote_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *params)
 638 {
 639         struct dcbx_features *p_feat;
 640
 641         p_feat = &p_hwfn->p_dcbx_info->remote.features;
 642         qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
 643                                    p_feat->app.app_pri_tbl, &p_feat->ets,
 644                                    p_feat->pfc, &params->remote.params, false);
 645         params->remote.valid = true;
 646 }
 647
 648 static void
 649 qed_dcbx_get_operational_params(struct qed_hwfn *p_hwfn,
 650                                 struct qed_dcbx_get *params)
 651 {
 652         struct qed_dcbx_operational_params *p_operational;
 653         struct qed_dcbx_results *p_results;
 654         struct dcbx_features *p_feat;
 655         bool enabled, err;
 656         u32 flags;
 657         bool val;
 658
 659         flags = p_hwfn->p_dcbx_info->operational.flags;
 660
 661         /* If DCBx version is non zero, then negotiation
 662          * was successfuly performed
 663          */
 664         p_operational = &params->operational;
 665         enabled = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) !=
 666                      DCBX_CONFIG_VERSION_DISABLED);
 667         if (!enabled) {
 668                 p_operational->enabled = enabled;
 669                 p_operational->valid = false;
 670                 DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Dcbx is disabled\n");
 671                 return;
 672         }
 673
 674         p_feat = &p_hwfn->p_dcbx_info->operational.features;
 675         p_results = &p_hwfn->p_dcbx_info->results;
 676
 677         val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
 678                  DCBX_CONFIG_VERSION_IEEE);
 679         p_operational->ieee = val;
 680         val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
 681                  DCBX_CONFIG_VERSION_CEE);
 682         p_operational->cee = val;
 683
 684         val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
 685                  DCBX_CONFIG_VERSION_STATIC);
 686         p_operational->local = val;
 687
 688         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 689                    "Version support: ieee %d, cee %d, static %d\n",
 690                    p_operational->ieee, p_operational->cee,
 691                    p_operational->local);
 692
 693         qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
 694                                    p_feat->app.app_pri_tbl, &p_feat->ets,
 695                                    p_feat->pfc, &params->operational.params,
 696                                    p_operational->ieee);
 697         qed_dcbx_get_priority_info(p_hwfn, &p_operational->app_prio, p_results);
 698         err = QED_MFW_GET_FIELD(p_feat->app.flags, DCBX_APP_ERROR);
 699         p_operational->err = err;
 700         p_operational->enabled = enabled;
 701         p_operational->valid = true;
 702 }
 703
 704 static void
 705 qed_dcbx_get_local_lldp_params(struct qed_hwfn *p_hwfn,
 706                                struct qed_dcbx_get *params)
 707 {
 708         struct lldp_config_params_s *p_local;
 709
 710         p_local = &p_hwfn->p_dcbx_info->lldp_local[LLDP_NEAREST_BRIDGE];
 711
 712         memcpy(params->lldp_local.local_chassis_id, p_local->local_chassis_id,
 713                ARRAY_SIZE(p_local->local_chassis_id));
 714         memcpy(params->lldp_local.local_port_id, p_local->local_port_id,
 715                ARRAY_SIZE(p_local->local_port_id));
 716 }
 717
 718 static void
 719 qed_dcbx_get_remote_lldp_params(struct qed_hwfn *p_hwfn,
 720                                 struct qed_dcbx_get *params)
 721 {
 722         struct lldp_status_params_s *p_remote;
 723
 724         p_remote = &p_hwfn->p_dcbx_info->lldp_remote[LLDP_NEAREST_BRIDGE];
 725
 726         memcpy(params->lldp_remote.peer_chassis_id, p_remote->peer_chassis_id,
 727                ARRAY_SIZE(p_remote->peer_chassis_id));
 728         memcpy(params->lldp_remote.peer_port_id, p_remote->peer_port_id,
 729                ARRAY_SIZE(p_remote->peer_port_id));
 730 }
 731
 732 static int
 733 qed_dcbx_get_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *p_params,
 734                     enum qed_mib_read_type type)
 735 {
 736         switch (type) {
 737         case QED_DCBX_REMOTE_MIB:
 738                 qed_dcbx_get_remote_params(p_hwfn, p_params);
 739                 break;
 740         case QED_DCBX_LOCAL_MIB:
 741                 qed_dcbx_get_local_params(p_hwfn, p_params);
 742                 break;
 743         case QED_DCBX_OPERATIONAL_MIB:
 744                 qed_dcbx_get_operational_params(p_hwfn, p_params);
 745                 break;
 746         case QED_DCBX_REMOTE_LLDP_MIB:
 747                 qed_dcbx_get_remote_lldp_params(p_hwfn, p_params);
 748                 break;
 749         case QED_DCBX_LOCAL_LLDP_MIB:
 750                 qed_dcbx_get_local_lldp_params(p_hwfn, p_params);
 751                 break;
 752         default:
 753                 DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
 754                 return -EINVAL;
 755         }
 756
 757         return 0;
 758 }
 759
 760 static int
 761 qed_dcbx_read_local_lldp_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 762 {
 763         struct qed_dcbx_mib_meta_data data;
 764         int rc = 0;
 765
 766         memset(&data, 0, sizeof(data));
 767         data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
 768                                                            lldp_config_params);
 769         data.lldp_local = p_hwfn->p_dcbx_info->lldp_local;
 770         data.size = sizeof(struct lldp_config_params_s);
 771         qed_memcpy_from(p_hwfn, p_ptt, data.lldp_local, data.addr, data.size);
 772
 773         return rc;
 774 }
 775
 776 static int
 777 qed_dcbx_read_remote_lldp_mib(struct qed_hwfn *p_hwfn,
 778                               struct qed_ptt *p_ptt,
 779                               enum qed_mib_read_type type)
 780 {
 781         struct qed_dcbx_mib_meta_data data;
 782         int rc = 0;
 783
 784         memset(&data, 0, sizeof(data));
 785         data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
 786                                                            lldp_status_params);
 787         data.lldp_remote = p_hwfn->p_dcbx_info->lldp_remote;
 788         data.size = sizeof(struct lldp_status_params_s);
 789         rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 790
 791         return rc;
 792 }
 793
 794 static int
 795 qed_dcbx_read_operational_mib(struct qed_hwfn *p_hwfn,
 796                               struct qed_ptt *p_ptt,
 797                               enum qed_mib_read_type type)
 798 {
 799         struct qed_dcbx_mib_meta_data data;
 800         int rc = 0;
 801
 802         memset(&data, 0, sizeof(data));
 803         data.addr = p_hwfn->mcp_info->port_addr +
 804                     offsetof(struct public_port, operational_dcbx_mib);
 805         data.mib = &p_hwfn->p_dcbx_info->operational;
 806         data.size = sizeof(struct dcbx_mib);
 807         rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 808
 809         return rc;
 810 }
 811
 812 static int
 813 qed_dcbx_read_remote_mib(struct qed_hwfn *p_hwfn,
 814                          struct qed_ptt *p_ptt, enum qed_mib_read_type type)
 815 {
 816         struct qed_dcbx_mib_meta_data data;
 817         int rc = 0;
 818
 819         memset(&data, 0, sizeof(data));
 820         data.addr = p_hwfn->mcp_info->port_addr +
 821                     offsetof(struct public_port, remote_dcbx_mib);
 822         data.mib = &p_hwfn->p_dcbx_info->remote;
 823         data.size = sizeof(struct dcbx_mib);
 824         rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 825
 826         return rc;
 827 }
 828
 829 static int
 830 qed_dcbx_read_local_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 831 {
 832         struct qed_dcbx_mib_meta_data data;
 833         int rc = 0;
 834
 835         memset(&data, 0, sizeof(data));
 836         data.addr = p_hwfn->mcp_info->port_addr +
 837                     offsetof(struct public_port, local_admin_dcbx_mib);
 838         data.local_admin = &p_hwfn->p_dcbx_info->local_admin;
 839         data.size = sizeof(struct dcbx_local_params);
 840         qed_memcpy_from(p_hwfn, p_ptt, data.local_admin, data.addr, data.size);
 841
 842         return rc;
 843 }
 844
 845 static int qed_dcbx_read_mib(struct qed_hwfn *p_hwfn,
 846                              struct qed_ptt *p_ptt, enum qed_mib_read_type type)
 847 {
 848         int rc = -EINVAL;
 849
 850         switch (type) {
 851         case QED_DCBX_OPERATIONAL_MIB:
 852                 rc = qed_dcbx_read_operational_mib(p_hwfn, p_ptt, type);
 853                 break;
 854         case QED_DCBX_REMOTE_MIB:
 855                 rc = qed_dcbx_read_remote_mib(p_hwfn, p_ptt, type);
 856                 break;
 857         case QED_DCBX_LOCAL_MIB:
 858                 rc = qed_dcbx_read_local_mib(p_hwfn, p_ptt);
 859                 break;
 860         case QED_DCBX_REMOTE_LLDP_MIB:
 861                 rc = qed_dcbx_read_remote_lldp_mib(p_hwfn, p_ptt, type);
 862                 break;
 863         case QED_DCBX_LOCAL_LLDP_MIB:
 864                 rc = qed_dcbx_read_local_lldp_mib(p_hwfn, p_ptt);
 865                 break;
 866         default:
 867                 DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
 868         }
 869
 870         return rc;
 871 }
 872
 873 void qed_dcbx_aen(struct qed_hwfn *hwfn, u32 mib_type)
 874 {
 875         struct qed_common_cb_ops *op = hwfn->cdev->protocol_ops.common;
 876         void *cookie = hwfn->cdev->ops_cookie;
 877
 878         if (cookie && op->dcbx_aen)
 879                 op->dcbx_aen(cookie, &hwfn->p_dcbx_info->get, mib_type);
 880 }
 881
 882 /* Read updated MIB.
 883  * Reconfigure QM and invoke PF update ramrod command if operational MIB
 884  * change is detected.
 885  */
 886 int
 887 qed_dcbx_mib_update_event(struct qed_hwfn *p_hwfn,
 888                           struct qed_ptt *p_ptt, enum qed_mib_read_type type)
 889 {
 890         int rc = 0;
 891
 892         rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type);
 893         if (rc)
 894                 return rc;
 895
 896         if (type == QED_DCBX_OPERATIONAL_MIB) {
 897                 rc = qed_dcbx_process_mib_info(p_hwfn);
 898                 if (!rc) {
 899                         /* reconfigure tcs of QM queues according
 900                          * to negotiation results
 901                          */
 902                         qed_qm_reconf(p_hwfn, p_ptt);
 903
 904                         /* update storm FW with negotiation results */
 905                         qed_sp_pf_update(p_hwfn);
 906
 907                         /* for roce PFs, we may want to enable/disable DPM
 908                          * when DCBx change occurs
 909                          */
 910                         if (p_hwfn->hw_info.personality ==
 911                             QED_PCI_ETH_ROCE)
 912                                 qed_roce_dpm_dcbx(p_hwfn, p_ptt);
 913                 }
 914         }
 915
 916         qed_dcbx_get_params(p_hwfn, &p_hwfn->p_dcbx_info->get, type);
 917
 918         if (type == QED_DCBX_OPERATIONAL_MIB) {
 919                 struct qed_dcbx_results *p_data;
 920                 u16 val;
 921
 922                 /* Configure in NIG which protocols support EDPM and should
 923                  * honor PFC.
 924                  */
 925                 p_data = &p_hwfn->p_dcbx_info->results;
 926                 val = (0x1 << p_data->arr[DCBX_PROTOCOL_ROCE].tc) |
 927                       (0x1 << p_data->arr[DCBX_PROTOCOL_ROCE_V2].tc);
 928                 val <<= NIG_REG_TX_EDPM_CTRL_TX_EDPM_TC_EN_SHIFT;
 929                 val |= NIG_REG_TX_EDPM_CTRL_TX_EDPM_EN;
 930                 qed_wr(p_hwfn, p_ptt, NIG_REG_TX_EDPM_CTRL, val);
 931         }
 932
 933         qed_dcbx_aen(p_hwfn, type);
 934
 935         return rc;
 936 }
 937
 938 int qed_dcbx_info_alloc(struct qed_hwfn *p_hwfn)
 939 {
 940         p_hwfn->p_dcbx_info = kzalloc(sizeof(*p_hwfn->p_dcbx_info), GFP_KERNEL);
 941         if (!p_hwfn->p_dcbx_info)
 942                 return -ENOMEM;
 943
 944         return 0;
 945 }
 946
 947 void qed_dcbx_info_free(struct qed_hwfn *p_hwfn)
 948 {
 949         kfree(p_hwfn->p_dcbx_info);
 950         p_hwfn->p_dcbx_info = NULL;
 951 }
 952
 953 static void qed_dcbx_update_protocol_data(struct protocol_dcb_data *p_data,
 954                                           struct qed_dcbx_results *p_src,
 955                                           enum dcbx_protocol_type type)
 956 {
 957         p_data->dcb_enable_flag = p_src->arr[type].enable;
 958         p_data->dcb_priority = p_src->arr[type].priority;
 959         p_data->dcb_tc = p_src->arr[type].tc;
 960 }
 961
 962 /* Set pf update ramrod command params */
 963 void qed_dcbx_set_pf_update_params(struct qed_dcbx_results *p_src,
 964                                    struct pf_update_ramrod_data *p_dest)
 965 {
 966         struct protocol_dcb_data *p_dcb_data;
 967         u8 update_flag;
 968
 969         update_flag = p_src->arr[DCBX_PROTOCOL_FCOE].update;
 970         p_dest->update_fcoe_dcb_data_mode = update_flag;
 971
 972         update_flag = p_src->arr[DCBX_PROTOCOL_ROCE].update;
 973         p_dest->update_roce_dcb_data_mode = update_flag;
 974
 975         update_flag = p_src->arr[DCBX_PROTOCOL_ROCE_V2].update;
 976         p_dest->update_rroce_dcb_data_mode = update_flag;
 977
 978         update_flag = p_src->arr[DCBX_PROTOCOL_ISCSI].update;
 979         p_dest->update_iscsi_dcb_data_mode = update_flag;
 980         update_flag = p_src->arr[DCBX_PROTOCOL_ETH].update;
 981         p_dest->update_eth_dcb_data_mode = update_flag;
 982
 983         p_dcb_data = &p_dest->fcoe_dcb_data;
 984         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_FCOE);
 985         p_dcb_data = &p_dest->roce_dcb_data;
 986         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ROCE);
 987         p_dcb_data = &p_dest->rroce_dcb_data;
 988         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ROCE_V2);
 989         p_dcb_data = &p_dest->iscsi_dcb_data;
 990         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ISCSI);
 991         p_dcb_data = &p_dest->eth_dcb_data;
 992         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ETH);
 993 }
 994
 995 #ifdef CONFIG_DCB
 996 static int qed_dcbx_query_params(struct qed_hwfn *p_hwfn,
 997                                  struct qed_dcbx_get *p_get,
 998                                  enum qed_mib_read_type type)
 999 {
1000         struct qed_ptt *p_ptt;
1001         int rc;
1002
1003         if (IS_VF(p_hwfn->cdev))
1004                 return -EINVAL;
1005
1006         p_ptt = qed_ptt_acquire(p_hwfn);
1007         if (!p_ptt)
1008                 return -EBUSY;
1009
1010         rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type);
1011         if (rc)
1012                 goto out;
1013
1014         rc = qed_dcbx_get_params(p_hwfn, p_get, type);
1015
1016 out:
1017         qed_ptt_release(p_hwfn, p_ptt);
1018         return rc;
1019 }
1020
1021 static void
1022 qed_dcbx_set_pfc_data(struct qed_hwfn *p_hwfn,
1023                       u32 *pfc, struct qed_dcbx_params *p_params)
1024 {
1025         u8 pfc_map = 0;
1026         int i;
1027
1028         *pfc &= ~DCBX_PFC_ERROR_MASK;
1029
1030         if (p_params->pfc.willing)
1031                 *pfc |= DCBX_PFC_WILLING_MASK;
1032         else
1033                 *pfc &= ~DCBX_PFC_WILLING_MASK;
1034
1035         if (p_params->pfc.enabled)
1036                 *pfc |= DCBX_PFC_ENABLED_MASK;
1037         else
1038                 *pfc &= ~DCBX_PFC_ENABLED_MASK;
1039
1040         *pfc &= ~DCBX_PFC_CAPS_MASK;
1041         *pfc |= (u32)p_params->pfc.max_tc << DCBX_PFC_CAPS_SHIFT;
1042
1043         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
1044                 if (p_params->pfc.prio[i])
1045                         pfc_map |= BIT(i);
1046
1047         *pfc &= ~DCBX_PFC_PRI_EN_BITMAP_MASK;
1048         *pfc |= (pfc_map << DCBX_PFC_PRI_EN_BITMAP_SHIFT);
1049
1050         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "pfc = 0x%x\n", *pfc);
1051 }
1052
1053 static void
1054 qed_dcbx_set_ets_data(struct qed_hwfn *p_hwfn,
1055                       struct dcbx_ets_feature *p_ets,
1056                       struct qed_dcbx_params *p_params)
1057 {
1058         u8 *bw_map, *tsa_map;
1059         u32 val;
1060         int i;
1061
1062         if (p_params->ets_willing)
1063                 p_ets->flags |= DCBX_ETS_WILLING_MASK;
1064         else
1065                 p_ets->flags &= ~DCBX_ETS_WILLING_MASK;
1066
1067         if (p_params->ets_cbs)
1068                 p_ets->flags |= DCBX_ETS_CBS_MASK;
1069         else
1070                 p_ets->flags &= ~DCBX_ETS_CBS_MASK;
1071
1072         if (p_params->ets_enabled)
1073                 p_ets->flags |= DCBX_ETS_ENABLED_MASK;
1074         else
1075                 p_ets->flags &= ~DCBX_ETS_ENABLED_MASK;
1076
1077         p_ets->flags &= ~DCBX_ETS_MAX_TCS_MASK;
1078         p_ets->flags |= (u32)p_params->max_ets_tc << DCBX_ETS_MAX_TCS_SHIFT;
1079
1080         bw_map = (u8 *)&p_ets->tc_bw_tbl[0];
1081         tsa_map = (u8 *)&p_ets->tc_tsa_tbl[0];
1082         p_ets->pri_tc_tbl[0] = 0;
1083         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
1084                 bw_map[i] = p_params->ets_tc_bw_tbl[i];
1085                 tsa_map[i] = p_params->ets_tc_tsa_tbl[i];
1086                 /* Copy the priority value to the corresponding 4 bits in the
1087                  * traffic class table.
1088                  */
1089                 val = (((u32)p_params->ets_pri_tc_tbl[i]) << ((7 - i) * 4));
1090                 p_ets->pri_tc_tbl[0] |= val;
1091         }
1092         for (i = 0; i < 2; i++) {
1093                 p_ets->tc_bw_tbl[i] = cpu_to_be32(p_ets->tc_bw_tbl[i]);
1094                 p_ets->tc_tsa_tbl[i] = cpu_to_be32(p_ets->tc_tsa_tbl[i]);
1095         }
1096 }
1097
1098 static void
1099 qed_dcbx_set_app_data(struct qed_hwfn *p_hwfn,
1100                       struct dcbx_app_priority_feature *p_app,
1101                       struct qed_dcbx_params *p_params, bool ieee)
1102 {
1103         u32 *entry;
1104         int i;
1105
1106         if (p_params->app_willing)
1107                 p_app->flags |= DCBX_APP_WILLING_MASK;
1108         else
1109                 p_app->flags &= ~DCBX_APP_WILLING_MASK;
1110
1111         if (p_params->app_valid)
1112                 p_app->flags |= DCBX_APP_ENABLED_MASK;
1113         else
1114                 p_app->flags &= ~DCBX_APP_ENABLED_MASK;
1115
1116         p_app->flags &= ~DCBX_APP_NUM_ENTRIES_MASK;
1117         p_app->flags |= (u32)p_params->num_app_entries <<
1118             DCBX_APP_NUM_ENTRIES_SHIFT;
1119
1120         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
1121                 entry = &p_app->app_pri_tbl[i].entry;
1122                 *entry = 0;
1123                 if (ieee) {
1124                         *entry &= ~(DCBX_APP_SF_IEEE_MASK | DCBX_APP_SF_MASK);
1125                         switch (p_params->app_entry[i].sf_ieee) {
1126                         case QED_DCBX_SF_IEEE_ETHTYPE:
1127                                 *entry |= ((u32)DCBX_APP_SF_IEEE_ETHTYPE <<
1128                                            DCBX_APP_SF_IEEE_SHIFT);
1129                                 *entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
1130                                            DCBX_APP_SF_SHIFT);
1131                                 break;
1132                         case QED_DCBX_SF_IEEE_TCP_PORT:
1133                                 *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_PORT <<
1134                                            DCBX_APP_SF_IEEE_SHIFT);
1135                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1136                                            DCBX_APP_SF_SHIFT);
1137                                 break;
1138                         case QED_DCBX_SF_IEEE_UDP_PORT:
1139                                 *entry |= ((u32)DCBX_APP_SF_IEEE_UDP_PORT <<
1140                                            DCBX_APP_SF_IEEE_SHIFT);
1141                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1142                                            DCBX_APP_SF_SHIFT);
1143                                 break;
1144                         case QED_DCBX_SF_IEEE_TCP_UDP_PORT:
1145                                 *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_UDP_PORT <<
1146                                            DCBX_APP_SF_IEEE_SHIFT);
1147                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1148                                            DCBX_APP_SF_SHIFT);
1149                                 break;
1150                         }
1151                 } else {
1152                         *entry &= ~DCBX_APP_SF_MASK;
1153                         if (p_params->app_entry[i].ethtype)
1154                                 *entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
1155                                            DCBX_APP_SF_SHIFT);
1156                         else
1157                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1158                                            DCBX_APP_SF_SHIFT);
1159                 }
1160
1161                 *entry &= ~DCBX_APP_PROTOCOL_ID_MASK;
1162                 *entry |= ((u32)p_params->app_entry[i].proto_id <<
1163                            DCBX_APP_PROTOCOL_ID_SHIFT);
1164                 *entry &= ~DCBX_APP_PRI_MAP_MASK;
1165                 *entry |= ((u32)(p_params->app_entry[i].prio) <<
1166                            DCBX_APP_PRI_MAP_SHIFT);
1167         }
1168 }
1169
1170 static void
1171 qed_dcbx_set_local_params(struct qed_hwfn *p_hwfn,
1172                           struct dcbx_local_params *local_admin,
1173                           struct qed_dcbx_set *params)
1174 {
1175         bool ieee = false;
1176
1177         local_admin->flags = 0;
1178         memcpy(&local_admin->features,
1179                &p_hwfn->p_dcbx_info->operational.features,
1180                sizeof(local_admin->features));
1181
1182         if (params->enabled) {
1183                 local_admin->config = params->ver_num;
1184                 ieee = !!(params->ver_num & DCBX_CONFIG_VERSION_IEEE);
1185         } else {
1186                 local_admin->config = DCBX_CONFIG_VERSION_DISABLED;
1187         }
1188
1189         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Dcbx version = %d\n",
1190                    local_admin->config);
1191
1192         if (params->override_flags & QED_DCBX_OVERRIDE_PFC_CFG)
1193                 qed_dcbx_set_pfc_data(p_hwfn, &local_admin->features.pfc,
1194                                       &params->config.params);
1195
1196         if (params->override_flags & QED_DCBX_OVERRIDE_ETS_CFG)
1197                 qed_dcbx_set_ets_data(p_hwfn, &local_admin->features.ets,
1198                                       &params->config.params);
1199
1200         if (params->override_flags & QED_DCBX_OVERRIDE_APP_CFG)
1201                 qed_dcbx_set_app_data(p_hwfn, &local_admin->features.app,
1202                                       &params->config.params, ieee);
1203 }
1204
1205 int qed_dcbx_config_params(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
1206                            struct qed_dcbx_set *params, bool hw_commit)
1207 {
1208         struct dcbx_local_params local_admin;
1209         struct qed_dcbx_mib_meta_data data;
1210         u32 resp = 0, param = 0;
1211         int rc = 0;
1212
1213         if (!hw_commit) {
1214                 memcpy(&p_hwfn->p_dcbx_info->set, params,
1215                        sizeof(struct qed_dcbx_set));
1216                 return 0;
1217         }
1218
1219         /* clear set-parmas cache */
1220         memset(&p_hwfn->p_dcbx_info->set, 0, sizeof(p_hwfn->p_dcbx_info->set));
1221
1222         memset(&local_admin, 0, sizeof(local_admin));
1223         qed_dcbx_set_local_params(p_hwfn, &local_admin, params);
1224
1225         data.addr = p_hwfn->mcp_info->port_addr +
1226             offsetof(struct public_port, local_admin_dcbx_mib);
1227         data.local_admin = &local_admin;
1228         data.size = sizeof(struct dcbx_local_params);
1229         qed_memcpy_to(p_hwfn, p_ptt, data.addr, data.local_admin, data.size);
1230
1231         rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_SET_DCBX,
1232                          1 << DRV_MB_PARAM_LLDP_SEND_SHIFT, &resp, &param);
1233         if (rc)
1234                 DP_NOTICE(p_hwfn, "Failed to send DCBX update request\n");
1235
1236         return rc;
1237 }
1238
1239 int qed_dcbx_get_config_params(struct qed_hwfn *p_hwfn,
1240                                struct qed_dcbx_set *params)
1241 {
1242         struct qed_dcbx_get *dcbx_info;
1243         int rc;
1244
1245         if (p_hwfn->p_dcbx_info->set.config.valid) {
1246                 memcpy(params, &p_hwfn->p_dcbx_info->set,
1247                        sizeof(struct qed_dcbx_set));
1248                 return 0;
1249         }
1250
1251         dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_KERNEL);
1252         if (!dcbx_info)
1253                 return -ENOMEM;
1254
1255         rc = qed_dcbx_query_params(p_hwfn, dcbx_info, QED_DCBX_OPERATIONAL_MIB);
1256         if (rc) {
1257                 kfree(dcbx_info);
1258                 return rc;
1259         }
1260
1261         p_hwfn->p_dcbx_info->set.override_flags = 0;
1262         p_hwfn->p_dcbx_info->set.ver_num = DCBX_CONFIG_VERSION_DISABLED;
1263         if (dcbx_info->operational.cee)
1264                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1265         if (dcbx_info->operational.ieee)
1266                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1267         if (dcbx_info->operational.local)
1268                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_STATIC;
1269
1270         p_hwfn->p_dcbx_info->set.enabled = dcbx_info->operational.enabled;
1271         memcpy(&p_hwfn->p_dcbx_info->set.config.params,
1272                &dcbx_info->operational.params,
1273                sizeof(struct qed_dcbx_admin_params));
1274         p_hwfn->p_dcbx_info->set.config.valid = true;
1275
1276         memcpy(params, &p_hwfn->p_dcbx_info->set, sizeof(struct qed_dcbx_set));
1277
1278         kfree(dcbx_info);
1279
1280         return 0;
1281 }
1282
1283 static struct qed_dcbx_get *qed_dcbnl_get_dcbx(struct qed_hwfn *hwfn,
1284                                                enum qed_mib_read_type type)
1285 {
1286         struct qed_dcbx_get *dcbx_info;
1287
1288         dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_ATOMIC);
1289         if (!dcbx_info)
1290                 return NULL;
1291
1292         if (qed_dcbx_query_params(hwfn, dcbx_info, type)) {
1293                 kfree(dcbx_info);
1294                 return NULL;
1295         }
1296
1297         if ((type == QED_DCBX_OPERATIONAL_MIB) &&
1298             !dcbx_info->operational.enabled) {
1299                 DP_INFO(hwfn, "DCBX is not enabled/operational\n");
1300                 kfree(dcbx_info);
1301                 return NULL;
1302         }
1303
1304         return dcbx_info;
1305 }
1306
1307 static u8 qed_dcbnl_getstate(struct qed_dev *cdev)
1308 {
1309         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1310         struct qed_dcbx_get *dcbx_info;
1311         bool enabled;
1312
1313         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1314         if (!dcbx_info)
1315                 return 0;
1316
1317         enabled = dcbx_info->operational.enabled;
1318         DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", enabled);
1319         kfree(dcbx_info);
1320
1321         return enabled;
1322 }
1323
1324 static u8 qed_dcbnl_setstate(struct qed_dev *cdev, u8 state)
1325 {
1326         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1327         struct qed_dcbx_set dcbx_set;
1328         struct qed_ptt *ptt;
1329         int rc;
1330
1331         DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", state);
1332
1333         memset(&dcbx_set, 0, sizeof(dcbx_set));
1334         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1335         if (rc)
1336                 return 1;
1337
1338         dcbx_set.enabled = !!state;
1339
1340         ptt = qed_ptt_acquire(hwfn);
1341         if (!ptt)
1342                 return 1;
1343
1344         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1345
1346         qed_ptt_release(hwfn, ptt);
1347
1348         return rc ? 1 : 0;
1349 }
1350
1351 static void qed_dcbnl_getpgtccfgtx(struct qed_dev *cdev, int tc, u8 *prio_type,
1352                                    u8 *pgid, u8 *bw_pct, u8 *up_map)
1353 {
1354         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1355         struct qed_dcbx_get *dcbx_info;
1356
1357         DP_VERBOSE(hwfn, QED_MSG_DCB, "tc = %d\n", tc);
1358         *prio_type = *pgid = *bw_pct = *up_map = 0;
1359         if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
1360                 DP_INFO(hwfn, "Invalid tc %d\n", tc);
1361                 return;
1362         }
1363
1364         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1365         if (!dcbx_info)
1366                 return;
1367
1368         *pgid = dcbx_info->operational.params.ets_pri_tc_tbl[tc];
1369         kfree(dcbx_info);
1370 }
1371
1372 static void qed_dcbnl_getpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 *bw_pct)
1373 {
1374         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1375         struct qed_dcbx_get *dcbx_info;
1376
1377         *bw_pct = 0;
1378         DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d\n", pgid);
1379         if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
1380                 DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
1381                 return;
1382         }
1383
1384         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1385         if (!dcbx_info)
1386                 return;
1387
1388         *bw_pct = dcbx_info->operational.params.ets_tc_bw_tbl[pgid];
1389         DP_VERBOSE(hwfn, QED_MSG_DCB, "bw_pct = %d\n", *bw_pct);
1390         kfree(dcbx_info);
1391 }
1392
1393 static void qed_dcbnl_getpgtccfgrx(struct qed_dev *cdev, int tc, u8 *prio,
1394                                    u8 *bwg_id, u8 *bw_pct, u8 *up_map)
1395 {
1396         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1397         *prio = *bwg_id = *bw_pct = *up_map = 0;
1398 }
1399
1400 static void qed_dcbnl_getpgbwgcfgrx(struct qed_dev *cdev,
1401                                     int bwg_id, u8 *bw_pct)
1402 {
1403         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1404         *bw_pct = 0;
1405 }
1406
1407 static void qed_dcbnl_getpfccfg(struct qed_dev *cdev,
1408                                 int priority, u8 *setting)
1409 {
1410         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1411         struct qed_dcbx_get *dcbx_info;
1412
1413         DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d\n", priority);
1414         if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
1415                 DP_INFO(hwfn, "Invalid priority %d\n", priority);
1416                 return;
1417         }
1418
1419         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1420         if (!dcbx_info)
1421                 return;
1422
1423         *setting = dcbx_info->operational.params.pfc.prio[priority];
1424         DP_VERBOSE(hwfn, QED_MSG_DCB, "setting = %d\n", *setting);
1425         kfree(dcbx_info);
1426 }
1427
1428 static void qed_dcbnl_setpfccfg(struct qed_dev *cdev, int priority, u8 setting)
1429 {
1430         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1431         struct qed_dcbx_set dcbx_set;
1432         struct qed_ptt *ptt;
1433         int rc;
1434
1435         DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d setting = %d\n",
1436                    priority, setting);
1437         if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
1438                 DP_INFO(hwfn, "Invalid priority %d\n", priority);
1439                 return;
1440         }
1441
1442         memset(&dcbx_set, 0, sizeof(dcbx_set));
1443         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1444         if (rc)
1445                 return;
1446
1447         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1448         dcbx_set.config.params.pfc.prio[priority] = !!setting;
1449
1450         ptt = qed_ptt_acquire(hwfn);
1451         if (!ptt)
1452                 return;
1453
1454         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1455
1456         qed_ptt_release(hwfn, ptt);
1457 }
1458
1459 static u8 qed_dcbnl_getcap(struct qed_dev *cdev, int capid, u8 *cap)
1460 {
1461         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1462         struct qed_dcbx_get *dcbx_info;
1463         int rc = 0;
1464
1465         DP_VERBOSE(hwfn, QED_MSG_DCB, "capid = %d\n", capid);
1466         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1467         if (!dcbx_info)
1468                 return 1;
1469
1470         switch (capid) {
1471         case DCB_CAP_ATTR_PG:
1472         case DCB_CAP_ATTR_PFC:
1473         case DCB_CAP_ATTR_UP2TC:
1474         case DCB_CAP_ATTR_GSP:
1475                 *cap = true;
1476                 break;
1477         case DCB_CAP_ATTR_PG_TCS:
1478         case DCB_CAP_ATTR_PFC_TCS:
1479                 *cap = 0x80;
1480                 break;
1481         case DCB_CAP_ATTR_DCBX:
1482                 *cap = (DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_CEE |
1483                         DCB_CAP_DCBX_VER_IEEE | DCB_CAP_DCBX_STATIC);
1484                 break;
1485         default:
1486                 *cap = false;
1487                 rc = 1;
1488         }
1489
1490         DP_VERBOSE(hwfn, QED_MSG_DCB, "id = %d caps = %d\n", capid, *cap);
1491         kfree(dcbx_info);
1492
1493         return rc;
1494 }
1495
1496 static int qed_dcbnl_getnumtcs(struct qed_dev *cdev, int tcid, u8 *num)
1497 {
1498         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1499         struct qed_dcbx_get *dcbx_info;
1500         int rc = 0;
1501
1502         DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d\n", tcid);
1503         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1504         if (!dcbx_info)
1505                 return -EINVAL;
1506
1507         switch (tcid) {
1508         case DCB_NUMTCS_ATTR_PG:
1509                 *num = dcbx_info->operational.params.max_ets_tc;
1510                 break;
1511         case DCB_NUMTCS_ATTR_PFC:
1512                 *num = dcbx_info->operational.params.pfc.max_tc;
1513                 break;
1514         default:
1515                 rc = -EINVAL;
1516         }
1517
1518         kfree(dcbx_info);
1519         DP_VERBOSE(hwfn, QED_MSG_DCB, "numtcs = %d\n", *num);
1520
1521         return rc;
1522 }
1523
1524 static u8 qed_dcbnl_getpfcstate(struct qed_dev *cdev)
1525 {
1526         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1527         struct qed_dcbx_get *dcbx_info;
1528         bool enabled;
1529
1530         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1531         if (!dcbx_info)
1532                 return 0;
1533
1534         enabled = dcbx_info->operational.params.pfc.enabled;
1535         DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d\n", enabled);
1536         kfree(dcbx_info);
1537
1538         return enabled;
1539 }
1540
1541 static u8 qed_dcbnl_getdcbx(struct qed_dev *cdev)
1542 {
1543         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1544         struct qed_dcbx_get *dcbx_info;
1545         u8 mode = 0;
1546
1547         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1548         if (!dcbx_info)
1549                 return 0;
1550
1551         if (dcbx_info->operational.enabled)
1552                 mode |= DCB_CAP_DCBX_LLD_MANAGED;
1553         if (dcbx_info->operational.ieee)
1554                 mode |= DCB_CAP_DCBX_VER_IEEE;
1555         if (dcbx_info->operational.cee)
1556                 mode |= DCB_CAP_DCBX_VER_CEE;
1557         if (dcbx_info->operational.local)
1558                 mode |= DCB_CAP_DCBX_STATIC;
1559
1560         DP_VERBOSE(hwfn, QED_MSG_DCB, "dcb mode = %d\n", mode);
1561         kfree(dcbx_info);
1562
1563         return mode;
1564 }
1565
1566 static void qed_dcbnl_setpgtccfgtx(struct qed_dev *cdev,
1567                                    int tc,
1568                                    u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
1569 {
1570         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1571         struct qed_dcbx_set dcbx_set;
1572         struct qed_ptt *ptt;
1573         int rc;
1574
1575         DP_VERBOSE(hwfn, QED_MSG_DCB,
1576                    "tc = %d pri_type = %d pgid = %d bw_pct = %d up_map = %d\n",
1577                    tc, pri_type, pgid, bw_pct, up_map);
1578
1579         if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
1580                 DP_INFO(hwfn, "Invalid tc %d\n", tc);
1581                 return;
1582         }
1583
1584         memset(&dcbx_set, 0, sizeof(dcbx_set));
1585         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1586         if (rc)
1587                 return;
1588
1589         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1590         dcbx_set.config.params.ets_pri_tc_tbl[tc] = pgid;
1591
1592         ptt = qed_ptt_acquire(hwfn);
1593         if (!ptt)
1594                 return;
1595
1596         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1597
1598         qed_ptt_release(hwfn, ptt);
1599 }
1600
1601 static void qed_dcbnl_setpgtccfgrx(struct qed_dev *cdev, int prio,
1602                                    u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
1603 {
1604         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1605 }
1606
1607 static void qed_dcbnl_setpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 bw_pct)
1608 {
1609         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1610         struct qed_dcbx_set dcbx_set;
1611         struct qed_ptt *ptt;
1612         int rc;
1613
1614         DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d bw_pct = %d\n", pgid, bw_pct);
1615         if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
1616                 DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
1617                 return;
1618         }
1619
1620         memset(&dcbx_set, 0, sizeof(dcbx_set));
1621         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1622         if (rc)
1623                 return;
1624
1625         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1626         dcbx_set.config.params.ets_tc_bw_tbl[pgid] = bw_pct;
1627
1628         ptt = qed_ptt_acquire(hwfn);
1629         if (!ptt)
1630                 return;
1631
1632         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1633
1634         qed_ptt_release(hwfn, ptt);
1635 }
1636
1637 static void qed_dcbnl_setpgbwgcfgrx(struct qed_dev *cdev, int pgid, u8 bw_pct)
1638 {
1639         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1640 }
1641
1642 static u8 qed_dcbnl_setall(struct qed_dev *cdev)
1643 {
1644         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1645         struct qed_dcbx_set dcbx_set;
1646         struct qed_ptt *ptt;
1647         int rc;
1648
1649         memset(&dcbx_set, 0, sizeof(dcbx_set));
1650         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1651         if (rc)
1652                 return 1;
1653
1654         ptt = qed_ptt_acquire(hwfn);
1655         if (!ptt)
1656                 return 1;
1657
1658         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 1);
1659
1660         qed_ptt_release(hwfn, ptt);
1661
1662         return rc;
1663 }
1664
1665 static int qed_dcbnl_setnumtcs(struct qed_dev *cdev, int tcid, u8 num)
1666 {
1667         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1668         struct qed_dcbx_set dcbx_set;
1669         struct qed_ptt *ptt;
1670         int rc;
1671
1672         DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d num = %d\n", tcid, num);
1673         memset(&dcbx_set, 0, sizeof(dcbx_set));
1674         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1675         if (rc)
1676                 return 1;
1677
1678         switch (tcid) {
1679         case DCB_NUMTCS_ATTR_PG:
1680                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1681                 dcbx_set.config.params.max_ets_tc = num;
1682                 break;
1683         case DCB_NUMTCS_ATTR_PFC:
1684                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1685                 dcbx_set.config.params.pfc.max_tc = num;
1686                 break;
1687         default:
1688                 DP_INFO(hwfn, "Invalid tcid %d\n", tcid);
1689                 return -EINVAL;
1690         }
1691
1692         ptt = qed_ptt_acquire(hwfn);
1693         if (!ptt)
1694                 return -EINVAL;
1695
1696         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1697
1698         qed_ptt_release(hwfn, ptt);
1699
1700         return 0;
1701 }
1702
1703 static void qed_dcbnl_setpfcstate(struct qed_dev *cdev, u8 state)
1704 {
1705         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1706         struct qed_dcbx_set dcbx_set;
1707         struct qed_ptt *ptt;
1708         int rc;
1709
1710         DP_VERBOSE(hwfn, QED_MSG_DCB, "new state = %d\n", state);
1711
1712         memset(&dcbx_set, 0, sizeof(dcbx_set));
1713         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1714         if (rc)
1715                 return;
1716
1717         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1718         dcbx_set.config.params.pfc.enabled = !!state;
1719
1720         ptt = qed_ptt_acquire(hwfn);
1721         if (!ptt)
1722                 return;
1723
1724         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1725
1726         qed_ptt_release(hwfn, ptt);
1727 }
1728
1729 static int qed_dcbnl_getapp(struct qed_dev *cdev, u8 idtype, u16 idval)
1730 {
1731         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1732         struct qed_dcbx_get *dcbx_info;
1733         struct qed_app_entry *entry;
1734         bool ethtype;
1735         u8 prio = 0;
1736         int i;
1737
1738         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1739         if (!dcbx_info)
1740                 return -EINVAL;
1741
1742         ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
1743         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
1744                 entry = &dcbx_info->operational.params.app_entry[i];
1745                 if ((entry->ethtype == ethtype) && (entry->proto_id == idval)) {
1746                         prio = entry->prio;
1747                         break;
1748                 }
1749         }
1750
1751         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
1752                 DP_ERR(cdev, "App entry (%d, %d) not found\n", idtype, idval);
1753                 kfree(dcbx_info);
1754                 return -EINVAL;
1755         }
1756
1757         kfree(dcbx_info);
1758
1759         return prio;
1760 }
1761
1762 static int qed_dcbnl_setapp(struct qed_dev *cdev,
1763                             u8 idtype, u16 idval, u8 pri_map)
1764 {
1765         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1766         struct qed_dcbx_set dcbx_set;
1767         struct qed_app_entry *entry;
1768         struct qed_ptt *ptt;
1769         bool ethtype;
1770         int rc, i;
1771
1772         memset(&dcbx_set, 0, sizeof(dcbx_set));
1773         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1774         if (rc)
1775                 return -EINVAL;
1776
1777         ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
1778         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
1779                 entry = &dcbx_set.config.params.app_entry[i];
1780                 if ((entry->ethtype == ethtype) && (entry->proto_id == idval))
1781                         break;
1782                 /* First empty slot */
1783                 if (!entry->proto_id) {
1784                         dcbx_set.config.params.num_app_entries++;
1785                         break;
1786                 }
1787         }
1788
1789         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
1790                 DP_ERR(cdev, "App table is full\n");
1791                 return -EBUSY;
1792         }
1793
1794         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
1795         dcbx_set.config.params.app_entry[i].ethtype = ethtype;
1796         dcbx_set.config.params.app_entry[i].proto_id = idval;
1797         dcbx_set.config.params.app_entry[i].prio = pri_map;
1798
1799         ptt = qed_ptt_acquire(hwfn);
1800         if (!ptt)
1801                 return -EBUSY;
1802
1803         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1804
1805         qed_ptt_release(hwfn, ptt);
1806
1807         return rc;
1808 }
1809
1810 static u8 qed_dcbnl_setdcbx(struct qed_dev *cdev, u8 mode)
1811 {
1812         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1813         struct qed_dcbx_set dcbx_set;
1814         struct qed_ptt *ptt;
1815         int rc;
1816
1817         DP_VERBOSE(hwfn, QED_MSG_DCB, "new mode = %x\n", mode);
1818
1819         if (!(mode & DCB_CAP_DCBX_VER_IEEE) &&
1820             !(mode & DCB_CAP_DCBX_VER_CEE) && !(mode & DCB_CAP_DCBX_STATIC)) {
1821                 DP_INFO(hwfn, "Allowed modes are cee, ieee or static\n");
1822                 return 1;
1823         }
1824
1825         memset(&dcbx_set, 0, sizeof(dcbx_set));
1826         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1827         if (rc)
1828                 return 1;
1829
1830         dcbx_set.ver_num = 0;
1831         if (mode & DCB_CAP_DCBX_VER_CEE) {
1832                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1833                 dcbx_set.enabled = true;
1834         }
1835
1836         if (mode & DCB_CAP_DCBX_VER_IEEE) {
1837                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1838                 dcbx_set.enabled = true;
1839         }
1840
1841         if (mode & DCB_CAP_DCBX_STATIC) {
1842                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_STATIC;
1843                 dcbx_set.enabled = true;
1844         }
1845
1846         ptt = qed_ptt_acquire(hwfn);
1847         if (!ptt)
1848                 return 1;
1849
1850         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1851
1852         qed_ptt_release(hwfn, ptt);
1853
1854         return rc;
1855 }
1856
1857 static u8 qed_dcbnl_getfeatcfg(struct qed_dev *cdev, int featid, u8 *flags)
1858 {
1859         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1860         struct qed_dcbx_get *dcbx_info;
1861
1862         DP_VERBOSE(hwfn, QED_MSG_DCB, "Feature id  = %d\n", featid);
1863         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1864         if (!dcbx_info)
1865                 return 1;
1866
1867         *flags = 0;
1868         switch (featid) {
1869         case DCB_FEATCFG_ATTR_PG:
1870                 if (dcbx_info->operational.params.ets_enabled)
1871                         *flags = DCB_FEATCFG_ENABLE;
1872                 else
1873                         *flags = DCB_FEATCFG_ERROR;
1874                 break;
1875         case DCB_FEATCFG_ATTR_PFC:
1876                 if (dcbx_info->operational.params.pfc.enabled)
1877                         *flags = DCB_FEATCFG_ENABLE;
1878                 else
1879                         *flags = DCB_FEATCFG_ERROR;
1880                 break;
1881         case DCB_FEATCFG_ATTR_APP:
1882                 if (dcbx_info->operational.params.app_valid)
1883                         *flags = DCB_FEATCFG_ENABLE;
1884                 else
1885                         *flags = DCB_FEATCFG_ERROR;
1886                 break;
1887         default:
1888                 DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
1889                 kfree(dcbx_info);
1890                 return 1;
1891         }
1892
1893         DP_VERBOSE(hwfn, QED_MSG_DCB, "flags = %d\n", *flags);
1894         kfree(dcbx_info);
1895
1896         return 0;
1897 }
1898
1899 static u8 qed_dcbnl_setfeatcfg(struct qed_dev *cdev, int featid, u8 flags)
1900 {
1901         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1902         struct qed_dcbx_set dcbx_set;
1903         bool enabled, willing;
1904         struct qed_ptt *ptt;
1905         int rc;
1906
1907         DP_VERBOSE(hwfn, QED_MSG_DCB, "featid = %d flags = %d\n",
1908                    featid, flags);
1909         memset(&dcbx_set, 0, sizeof(dcbx_set));
1910         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1911         if (rc)
1912                 return 1;
1913
1914         enabled = !!(flags & DCB_FEATCFG_ENABLE);
1915         willing = !!(flags & DCB_FEATCFG_WILLING);
1916         switch (featid) {
1917         case DCB_FEATCFG_ATTR_PG:
1918                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1919                 dcbx_set.config.params.ets_enabled = enabled;
1920                 dcbx_set.config.params.ets_willing = willing;
1921                 break;
1922         case DCB_FEATCFG_ATTR_PFC:
1923                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1924                 dcbx_set.config.params.pfc.enabled = enabled;
1925                 dcbx_set.config.params.pfc.willing = willing;
1926                 break;
1927         case DCB_FEATCFG_ATTR_APP:
1928                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
1929                 dcbx_set.config.params.app_willing = willing;
1930                 break;
1931         default:
1932                 DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
1933                 return 1;
1934         }
1935
1936         ptt = qed_ptt_acquire(hwfn);
1937         if (!ptt)
1938                 return 1;
1939
1940         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1941
1942         qed_ptt_release(hwfn, ptt);
1943
1944         return 0;
1945 }
1946
1947 static int qed_dcbnl_peer_getappinfo(struct qed_dev *cdev,
1948                                      struct dcb_peer_app_info *info,
1949                                      u16 *app_count)
1950 {
1951         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1952         struct qed_dcbx_get *dcbx_info;
1953
1954         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1955         if (!dcbx_info)
1956                 return -EINVAL;
1957
1958         info->willing = dcbx_info->remote.params.app_willing;
1959         info->error = dcbx_info->remote.params.app_error;
1960         *app_count = dcbx_info->remote.params.num_app_entries;
1961         kfree(dcbx_info);
1962
1963         return 0;
1964 }
1965
1966 static int qed_dcbnl_peer_getapptable(struct qed_dev *cdev,
1967                                       struct dcb_app *table)
1968 {
1969         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1970         struct qed_dcbx_get *dcbx_info;
1971         int i;
1972
1973         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1974         if (!dcbx_info)
1975                 return -EINVAL;
1976
1977         for (i = 0; i < dcbx_info->remote.params.num_app_entries; i++) {
1978                 if (dcbx_info->remote.params.app_entry[i].ethtype)
1979                         table[i].selector = DCB_APP_IDTYPE_ETHTYPE;
1980                 else
1981                         table[i].selector = DCB_APP_IDTYPE_PORTNUM;
1982                 table[i].priority = dcbx_info->remote.params.app_entry[i].prio;
1983                 table[i].protocol =
1984                     dcbx_info->remote.params.app_entry[i].proto_id;
1985         }
1986
1987         kfree(dcbx_info);
1988
1989         return 0;
1990 }
1991
1992 static int qed_dcbnl_cee_peer_getpfc(struct qed_dev *cdev, struct cee_pfc *pfc)
1993 {
1994         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1995         struct qed_dcbx_get *dcbx_info;
1996         int i;
1997
1998         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1999         if (!dcbx_info)
2000                 return -EINVAL;
2001
2002         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2003                 if (dcbx_info->remote.params.pfc.prio[i])
2004                         pfc->pfc_en |= BIT(i);
2005
2006         pfc->tcs_supported = dcbx_info->remote.params.pfc.max_tc;
2007         DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d tcs_supported = %d\n",
2008                    pfc->pfc_en, pfc->tcs_supported);
2009         kfree(dcbx_info);
2010
2011         return 0;
2012 }
2013
2014 static int qed_dcbnl_cee_peer_getpg(struct qed_dev *cdev, struct cee_pg *pg)
2015 {
2016         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2017         struct qed_dcbx_get *dcbx_info;
2018         int i;
2019
2020         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
2021         if (!dcbx_info)
2022                 return -EINVAL;
2023
2024         pg->willing = dcbx_info->remote.params.ets_willing;
2025         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
2026                 pg->pg_bw[i] = dcbx_info->remote.params.ets_tc_bw_tbl[i];
2027                 pg->prio_pg[i] = dcbx_info->remote.params.ets_pri_tc_tbl[i];
2028         }
2029
2030         DP_VERBOSE(hwfn, QED_MSG_DCB, "willing = %d", pg->willing);
2031         kfree(dcbx_info);
2032
2033         return 0;
2034 }
2035
2036 static int qed_dcbnl_get_ieee_pfc(struct qed_dev *cdev,
2037                                   struct ieee_pfc *pfc, bool remote)
2038 {
2039         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2040         struct qed_dcbx_params *params;
2041         struct qed_dcbx_get *dcbx_info;
2042         int rc, i;
2043
2044         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2045         if (!dcbx_info)
2046                 return -EINVAL;
2047
2048         if (!dcbx_info->operational.ieee) {
2049                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2050                 kfree(dcbx_info);
2051                 return -EINVAL;
2052         }
2053
2054         if (remote) {
2055                 memset(dcbx_info, 0, sizeof(*dcbx_info));
2056                 rc = qed_dcbx_query_params(hwfn, dcbx_info,
2057                                            QED_DCBX_REMOTE_MIB);
2058                 if (rc) {
2059                         kfree(dcbx_info);
2060                         return -EINVAL;
2061                 }
2062
2063                 params = &dcbx_info->remote.params;
2064         } else {
2065                 params = &dcbx_info->operational.params;
2066         }
2067
2068         pfc->pfc_cap = params->pfc.max_tc;
2069         pfc->pfc_en = 0;
2070         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2071                 if (params->pfc.prio[i])
2072                         pfc->pfc_en |= BIT(i);
2073
2074         kfree(dcbx_info);
2075
2076         return 0;
2077 }
2078
2079 static int qed_dcbnl_ieee_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2080 {
2081         return qed_dcbnl_get_ieee_pfc(cdev, pfc, false);
2082 }
2083
2084 static int qed_dcbnl_ieee_setpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2085 {
2086         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2087         struct qed_dcbx_get *dcbx_info;
2088         struct qed_dcbx_set dcbx_set;
2089         struct qed_ptt *ptt;
2090         int rc, i;
2091
2092         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2093         if (!dcbx_info)
2094                 return -EINVAL;
2095
2096         if (!dcbx_info->operational.ieee) {
2097                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2098                 kfree(dcbx_info);
2099                 return -EINVAL;
2100         }
2101
2102         kfree(dcbx_info);
2103
2104         memset(&dcbx_set, 0, sizeof(dcbx_set));
2105         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2106         if (rc)
2107                 return -EINVAL;
2108
2109         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
2110         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2111                 dcbx_set.config.params.pfc.prio[i] = !!(pfc->pfc_en & BIT(i));
2112
2113         dcbx_set.config.params.pfc.max_tc = pfc->pfc_cap;
2114
2115         ptt = qed_ptt_acquire(hwfn);
2116         if (!ptt)
2117                 return -EINVAL;
2118
2119         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2120
2121         qed_ptt_release(hwfn, ptt);
2122
2123         return rc;
2124 }
2125
2126 static int qed_dcbnl_get_ieee_ets(struct qed_dev *cdev,
2127                                   struct ieee_ets *ets, bool remote)
2128 {
2129         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2130         struct qed_dcbx_get *dcbx_info;
2131         struct qed_dcbx_params *params;
2132         int rc;
2133
2134         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2135         if (!dcbx_info)
2136                 return -EINVAL;
2137
2138         if (!dcbx_info->operational.ieee) {
2139                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2140                 kfree(dcbx_info);
2141                 return -EINVAL;
2142         }
2143
2144         if (remote) {
2145                 memset(dcbx_info, 0, sizeof(*dcbx_info));
2146                 rc = qed_dcbx_query_params(hwfn, dcbx_info,
2147                                            QED_DCBX_REMOTE_MIB);
2148                 if (rc) {
2149                         kfree(dcbx_info);
2150                         return -EINVAL;
2151                 }
2152
2153                 params = &dcbx_info->remote.params;
2154         } else {
2155                 params = &dcbx_info->operational.params;
2156         }
2157
2158         ets->ets_cap = params->max_ets_tc;
2159         ets->willing = params->ets_willing;
2160         ets->cbs = params->ets_cbs;
2161         memcpy(ets->tc_tx_bw, params->ets_tc_bw_tbl, sizeof(ets->tc_tx_bw));
2162         memcpy(ets->tc_tsa, params->ets_tc_tsa_tbl, sizeof(ets->tc_tsa));
2163         memcpy(ets->prio_tc, params->ets_pri_tc_tbl, sizeof(ets->prio_tc));
2164         kfree(dcbx_info);
2165
2166         return 0;
2167 }
2168
2169 static int qed_dcbnl_ieee_getets(struct qed_dev *cdev, struct ieee_ets *ets)
2170 {
2171         return qed_dcbnl_get_ieee_ets(cdev, ets, false);
2172 }
2173
2174 static int qed_dcbnl_ieee_setets(struct qed_dev *cdev, struct ieee_ets *ets)
2175 {
2176         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2177         struct qed_dcbx_get *dcbx_info;
2178         struct qed_dcbx_set dcbx_set;
2179         struct qed_ptt *ptt;
2180         int rc;
2181
2182         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2183         if (!dcbx_info)
2184                 return -EINVAL;
2185
2186         if (!dcbx_info->operational.ieee) {
2187                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2188                 kfree(dcbx_info);
2189                 return -EINVAL;
2190         }
2191
2192         kfree(dcbx_info);
2193
2194         memset(&dcbx_set, 0, sizeof(dcbx_set));
2195         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2196         if (rc)
2197                 return -EINVAL;
2198
2199         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
2200         dcbx_set.config.params.max_ets_tc = ets->ets_cap;
2201         dcbx_set.config.params.ets_willing = ets->willing;
2202         dcbx_set.config.params.ets_cbs = ets->cbs;
2203         memcpy(dcbx_set.config.params.ets_tc_bw_tbl, ets->tc_tx_bw,
2204                sizeof(ets->tc_tx_bw));
2205         memcpy(dcbx_set.config.params.ets_tc_tsa_tbl, ets->tc_tsa,
2206                sizeof(ets->tc_tsa));
2207         memcpy(dcbx_set.config.params.ets_pri_tc_tbl, ets->prio_tc,
2208                sizeof(ets->prio_tc));
2209
2210         ptt = qed_ptt_acquire(hwfn);
2211         if (!ptt)
2212                 return -EINVAL;
2213
2214         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2215
2216         qed_ptt_release(hwfn, ptt);
2217
2218         return rc;
2219 }
2220
2221 static int
2222 qed_dcbnl_ieee_peer_getets(struct qed_dev *cdev, struct ieee_ets *ets)
2223 {
2224         return qed_dcbnl_get_ieee_ets(cdev, ets, true);
2225 }
2226
2227 static int
2228 qed_dcbnl_ieee_peer_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2229 {
2230         return qed_dcbnl_get_ieee_pfc(cdev, pfc, true);
2231 }
2232
2233 static int qed_get_sf_ieee_value(u8 selector, u8 *sf_ieee)
2234 {
2235         switch (selector) {
2236         case IEEE_8021QAZ_APP_SEL_ETHERTYPE:
2237                 *sf_ieee = QED_DCBX_SF_IEEE_ETHTYPE;
2238                 break;
2239         case IEEE_8021QAZ_APP_SEL_STREAM:
2240                 *sf_ieee = QED_DCBX_SF_IEEE_TCP_PORT;
2241                 break;
2242         case IEEE_8021QAZ_APP_SEL_DGRAM:
2243                 *sf_ieee = QED_DCBX_SF_IEEE_UDP_PORT;
2244                 break;
2245         case IEEE_8021QAZ_APP_SEL_ANY:
2246                 *sf_ieee = QED_DCBX_SF_IEEE_TCP_UDP_PORT;
2247                 break;
2248         default:
2249                 return -EINVAL;
2250         }
2251
2252         return 0;
2253 }
2254
2255 static int qed_dcbnl_ieee_getapp(struct qed_dev *cdev, struct dcb_app *app)
2256 {
2257         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2258         struct qed_dcbx_get *dcbx_info;
2259         struct qed_app_entry *entry;
2260         u8 prio = 0;
2261         u8 sf_ieee;
2262         int i;
2263
2264         DP_VERBOSE(hwfn, QED_MSG_DCB, "selector = %d protocol = %d\n",
2265                    app->selector, app->protocol);
2266
2267         if (qed_get_sf_ieee_value(app->selector, &sf_ieee)) {
2268                 DP_INFO(cdev, "Invalid selector field value %d\n",
2269                         app->selector);
2270                 return -EINVAL;
2271         }
2272
2273         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2274         if (!dcbx_info)
2275                 return -EINVAL;
2276
2277         if (!dcbx_info->operational.ieee) {
2278                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2279                 kfree(dcbx_info);
2280                 return -EINVAL;
2281         }
2282
2283         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
2284                 entry = &dcbx_info->operational.params.app_entry[i];
2285                 if ((entry->sf_ieee == sf_ieee) &&
2286                     (entry->proto_id == app->protocol)) {
2287                         prio = entry->prio;
2288                         break;
2289                 }
2290         }
2291
2292         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
2293                 DP_ERR(cdev, "App entry (%d, %d) not found\n", app->selector,
2294                        app->protocol);
2295                 kfree(dcbx_info);
2296                 return -EINVAL;
2297         }
2298
2299         app->priority = ffs(prio) - 1;
2300
2301         kfree(dcbx_info);
2302
2303         return 0;
2304 }
2305
2306 static int qed_dcbnl_ieee_setapp(struct qed_dev *cdev, struct dcb_app *app)
2307 {
2308         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2309         struct qed_dcbx_get *dcbx_info;
2310         struct qed_dcbx_set dcbx_set;
2311         struct qed_app_entry *entry;
2312         struct qed_ptt *ptt;
2313         u8 sf_ieee;
2314         int rc, i;
2315
2316         DP_VERBOSE(hwfn, QED_MSG_DCB, "selector = %d protocol = %d pri = %d\n",
2317                    app->selector, app->protocol, app->priority);
2318         if (app->priority >= QED_MAX_PFC_PRIORITIES) {
2319                 DP_INFO(hwfn, "Invalid priority %d\n", app->priority);
2320                 return -EINVAL;
2321         }
2322
2323         if (qed_get_sf_ieee_value(app->selector, &sf_ieee)) {
2324                 DP_INFO(cdev, "Invalid selector field value %d\n",
2325                         app->selector);
2326                 return -EINVAL;
2327         }
2328
2329         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2330         if (!dcbx_info)
2331                 return -EINVAL;
2332
2333         if (!dcbx_info->operational.ieee) {
2334                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2335                 kfree(dcbx_info);
2336                 return -EINVAL;
2337         }
2338
2339         kfree(dcbx_info);
2340
2341         memset(&dcbx_set, 0, sizeof(dcbx_set));
2342         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2343         if (rc)
2344                 return -EINVAL;
2345
2346         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
2347                 entry = &dcbx_set.config.params.app_entry[i];
2348                 if ((entry->sf_ieee == sf_ieee) &&
2349                     (entry->proto_id == app->protocol))
2350                         break;
2351                 /* First empty slot */
2352                 if (!entry->proto_id) {
2353                         dcbx_set.config.params.num_app_entries++;
2354                         break;
2355                 }
2356         }
2357
2358         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
2359                 DP_ERR(cdev, "App table is full\n");
2360                 return -EBUSY;
2361         }
2362
2363         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
2364         dcbx_set.config.params.app_entry[i].sf_ieee = sf_ieee;
2365         dcbx_set.config.params.app_entry[i].proto_id = app->protocol;
2366         dcbx_set.config.params.app_entry[i].prio = BIT(app->priority);
2367
2368         ptt = qed_ptt_acquire(hwfn);
2369         if (!ptt)
2370                 return -EBUSY;
2371
2372         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2373
2374         qed_ptt_release(hwfn, ptt);
2375
2376         return rc;
2377 }
2378
2379 const struct qed_eth_dcbnl_ops qed_dcbnl_ops_pass = {
2380         .getstate = qed_dcbnl_getstate,
2381         .setstate = qed_dcbnl_setstate,
2382         .getpgtccfgtx = qed_dcbnl_getpgtccfgtx,
2383         .getpgbwgcfgtx = qed_dcbnl_getpgbwgcfgtx,
2384         .getpgtccfgrx = qed_dcbnl_getpgtccfgrx,
2385         .getpgbwgcfgrx = qed_dcbnl_getpgbwgcfgrx,
2386         .getpfccfg = qed_dcbnl_getpfccfg,
2387         .setpfccfg = qed_dcbnl_setpfccfg,
2388         .getcap = qed_dcbnl_getcap,
2389         .getnumtcs = qed_dcbnl_getnumtcs,
2390         .getpfcstate = qed_dcbnl_getpfcstate,
2391         .getdcbx = qed_dcbnl_getdcbx,
2392         .setpgtccfgtx = qed_dcbnl_setpgtccfgtx,
2393         .setpgtccfgrx = qed_dcbnl_setpgtccfgrx,
2394         .setpgbwgcfgtx = qed_dcbnl_setpgbwgcfgtx,
2395         .setpgbwgcfgrx = qed_dcbnl_setpgbwgcfgrx,
2396         .setall = qed_dcbnl_setall,
2397         .setnumtcs = qed_dcbnl_setnumtcs,
2398         .setpfcstate = qed_dcbnl_setpfcstate,
2399         .setapp = qed_dcbnl_setapp,
2400         .setdcbx = qed_dcbnl_setdcbx,
2401         .setfeatcfg = qed_dcbnl_setfeatcfg,
2402         .getfeatcfg = qed_dcbnl_getfeatcfg,
2403         .getapp = qed_dcbnl_getapp,
2404         .peer_getappinfo = qed_dcbnl_peer_getappinfo,
2405         .peer_getapptable = qed_dcbnl_peer_getapptable,
2406         .cee_peer_getpfc = qed_dcbnl_cee_peer_getpfc,
2407         .cee_peer_getpg = qed_dcbnl_cee_peer_getpg,
2408         .ieee_getpfc = qed_dcbnl_ieee_getpfc,
2409         .ieee_setpfc = qed_dcbnl_ieee_setpfc,
2410         .ieee_getets = qed_dcbnl_ieee_getets,
2411         .ieee_setets = qed_dcbnl_ieee_setets,
2412         .ieee_peer_getpfc = qed_dcbnl_ieee_peer_getpfc,
2413         .ieee_peer_getets = qed_dcbnl_ieee_peer_getets,
2414         .ieee_getapp = qed_dcbnl_ieee_getapp,
2415         .ieee_setapp = qed_dcbnl_ieee_setapp,
2416 };
2417
2418 #endif