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