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         memset(dcbx_info, 0, sizeof(*dcbx_info));
1248         rc = qed_dcbx_query_params(p_hwfn, dcbx_info, QED_DCBX_OPERATIONAL_MIB);
1249         if (rc) {
1250                 kfree(dcbx_info);
1251                 return rc;
1252         }
1253
1254         p_hwfn->p_dcbx_info->set.override_flags = 0;
1255         p_hwfn->p_dcbx_info->set.ver_num = DCBX_CONFIG_VERSION_DISABLED;
1256         if (dcbx_info->operational.cee)
1257                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1258         if (dcbx_info->operational.ieee)
1259                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1260         if (dcbx_info->operational.local)
1261                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_STATIC;
1262
1263         p_hwfn->p_dcbx_info->set.enabled = dcbx_info->operational.enabled;
1264         memcpy(&p_hwfn->p_dcbx_info->set.config.params,
1265                &dcbx_info->operational.params,
1266                sizeof(struct qed_dcbx_admin_params));
1267         p_hwfn->p_dcbx_info->set.config.valid = true;
1268
1269         memcpy(params, &p_hwfn->p_dcbx_info->set, sizeof(struct qed_dcbx_set));
1270
1271         kfree(dcbx_info);
1272
1273         return 0;
1274 }
1275
1276 static struct qed_dcbx_get *qed_dcbnl_get_dcbx(struct qed_hwfn *hwfn,
1277                                                enum qed_mib_read_type type)
1278 {
1279         struct qed_dcbx_get *dcbx_info;
1280
1281         dcbx_info = kmalloc(sizeof(*dcbx_info), GFP_ATOMIC);
1282         if (!dcbx_info)
1283                 return NULL;
1284
1285         memset(dcbx_info, 0, sizeof(*dcbx_info));
1286         if (qed_dcbx_query_params(hwfn, dcbx_info, type)) {
1287                 kfree(dcbx_info);
1288                 return NULL;
1289         }
1290
1291         if ((type == QED_DCBX_OPERATIONAL_MIB) &&
1292             !dcbx_info->operational.enabled) {
1293                 DP_INFO(hwfn, "DCBX is not enabled/operational\n");
1294                 kfree(dcbx_info);
1295                 return NULL;
1296         }
1297
1298         return dcbx_info;
1299 }
1300
1301 static u8 qed_dcbnl_getstate(struct qed_dev *cdev)
1302 {
1303         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1304         struct qed_dcbx_get *dcbx_info;
1305         bool enabled;
1306
1307         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1308         if (!dcbx_info)
1309                 return 0;
1310
1311         enabled = dcbx_info->operational.enabled;
1312         DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", enabled);
1313         kfree(dcbx_info);
1314
1315         return enabled;
1316 }
1317
1318 static u8 qed_dcbnl_setstate(struct qed_dev *cdev, u8 state)
1319 {
1320         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1321         struct qed_dcbx_set dcbx_set;
1322         struct qed_ptt *ptt;
1323         int rc;
1324
1325         DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", state);
1326
1327         memset(&dcbx_set, 0, sizeof(dcbx_set));
1328         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1329         if (rc)
1330                 return 1;
1331
1332         dcbx_set.enabled = !!state;
1333
1334         ptt = qed_ptt_acquire(hwfn);
1335         if (!ptt)
1336                 return 1;
1337
1338         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1339
1340         qed_ptt_release(hwfn, ptt);
1341
1342         return rc ? 1 : 0;
1343 }
1344
1345 static void qed_dcbnl_getpgtccfgtx(struct qed_dev *cdev, int tc, u8 *prio_type,
1346                                    u8 *pgid, u8 *bw_pct, u8 *up_map)
1347 {
1348         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1349         struct qed_dcbx_get *dcbx_info;
1350
1351         DP_VERBOSE(hwfn, QED_MSG_DCB, "tc = %d\n", tc);
1352         *prio_type = *pgid = *bw_pct = *up_map = 0;
1353         if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
1354                 DP_INFO(hwfn, "Invalid tc %d\n", tc);
1355                 return;
1356         }
1357
1358         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1359         if (!dcbx_info)
1360                 return;
1361
1362         *pgid = dcbx_info->operational.params.ets_pri_tc_tbl[tc];
1363         kfree(dcbx_info);
1364 }
1365
1366 static void qed_dcbnl_getpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 *bw_pct)
1367 {
1368         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1369         struct qed_dcbx_get *dcbx_info;
1370
1371         *bw_pct = 0;
1372         DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d\n", pgid);
1373         if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
1374                 DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
1375                 return;
1376         }
1377
1378         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1379         if (!dcbx_info)
1380                 return;
1381
1382         *bw_pct = dcbx_info->operational.params.ets_tc_bw_tbl[pgid];
1383         DP_VERBOSE(hwfn, QED_MSG_DCB, "bw_pct = %d\n", *bw_pct);
1384         kfree(dcbx_info);
1385 }
1386
1387 static void qed_dcbnl_getpgtccfgrx(struct qed_dev *cdev, int tc, u8 *prio,
1388                                    u8 *bwg_id, u8 *bw_pct, u8 *up_map)
1389 {
1390         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1391         *prio = *bwg_id = *bw_pct = *up_map = 0;
1392 }
1393
1394 static void qed_dcbnl_getpgbwgcfgrx(struct qed_dev *cdev,
1395                                     int bwg_id, u8 *bw_pct)
1396 {
1397         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1398         *bw_pct = 0;
1399 }
1400
1401 static void qed_dcbnl_getpfccfg(struct qed_dev *cdev,
1402                                 int priority, u8 *setting)
1403 {
1404         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1405         struct qed_dcbx_get *dcbx_info;
1406
1407         DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d\n", priority);
1408         if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
1409                 DP_INFO(hwfn, "Invalid priority %d\n", priority);
1410                 return;
1411         }
1412
1413         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1414         if (!dcbx_info)
1415                 return;
1416
1417         *setting = dcbx_info->operational.params.pfc.prio[priority];
1418         DP_VERBOSE(hwfn, QED_MSG_DCB, "setting = %d\n", *setting);
1419         kfree(dcbx_info);
1420 }
1421
1422 static void qed_dcbnl_setpfccfg(struct qed_dev *cdev, int priority, u8 setting)
1423 {
1424         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1425         struct qed_dcbx_set dcbx_set;
1426         struct qed_ptt *ptt;
1427         int rc;
1428
1429         DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d setting = %d\n",
1430                    priority, setting);
1431         if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
1432                 DP_INFO(hwfn, "Invalid priority %d\n", priority);
1433                 return;
1434         }
1435
1436         memset(&dcbx_set, 0, sizeof(dcbx_set));
1437         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1438         if (rc)
1439                 return;
1440
1441         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1442         dcbx_set.config.params.pfc.prio[priority] = !!setting;
1443
1444         ptt = qed_ptt_acquire(hwfn);
1445         if (!ptt)
1446                 return;
1447
1448         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1449
1450         qed_ptt_release(hwfn, ptt);
1451 }
1452
1453 static u8 qed_dcbnl_getcap(struct qed_dev *cdev, int capid, u8 *cap)
1454 {
1455         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1456         struct qed_dcbx_get *dcbx_info;
1457         int rc = 0;
1458
1459         DP_VERBOSE(hwfn, QED_MSG_DCB, "capid = %d\n", capid);
1460         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1461         if (!dcbx_info)
1462                 return 1;
1463
1464         switch (capid) {
1465         case DCB_CAP_ATTR_PG:
1466         case DCB_CAP_ATTR_PFC:
1467         case DCB_CAP_ATTR_UP2TC:
1468         case DCB_CAP_ATTR_GSP:
1469                 *cap = true;
1470                 break;
1471         case DCB_CAP_ATTR_PG_TCS:
1472         case DCB_CAP_ATTR_PFC_TCS:
1473                 *cap = 0x80;
1474                 break;
1475         case DCB_CAP_ATTR_DCBX:
1476                 *cap = (DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_CEE |
1477                         DCB_CAP_DCBX_VER_IEEE | DCB_CAP_DCBX_STATIC);
1478                 break;
1479         default:
1480                 *cap = false;
1481                 rc = 1;
1482         }
1483
1484         DP_VERBOSE(hwfn, QED_MSG_DCB, "id = %d caps = %d\n", capid, *cap);
1485         kfree(dcbx_info);
1486
1487         return rc;
1488 }
1489
1490 static int qed_dcbnl_getnumtcs(struct qed_dev *cdev, int tcid, u8 *num)
1491 {
1492         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1493         struct qed_dcbx_get *dcbx_info;
1494         int rc = 0;
1495
1496         DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d\n", tcid);
1497         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1498         if (!dcbx_info)
1499                 return -EINVAL;
1500
1501         switch (tcid) {
1502         case DCB_NUMTCS_ATTR_PG:
1503                 *num = dcbx_info->operational.params.max_ets_tc;
1504                 break;
1505         case DCB_NUMTCS_ATTR_PFC:
1506                 *num = dcbx_info->operational.params.pfc.max_tc;
1507                 break;
1508         default:
1509                 rc = -EINVAL;
1510         }
1511
1512         kfree(dcbx_info);
1513         DP_VERBOSE(hwfn, QED_MSG_DCB, "numtcs = %d\n", *num);
1514
1515         return rc;
1516 }
1517
1518 static u8 qed_dcbnl_getpfcstate(struct qed_dev *cdev)
1519 {
1520         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1521         struct qed_dcbx_get *dcbx_info;
1522         bool enabled;
1523
1524         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1525         if (!dcbx_info)
1526                 return 0;
1527
1528         enabled = dcbx_info->operational.params.pfc.enabled;
1529         DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d\n", enabled);
1530         kfree(dcbx_info);
1531
1532         return enabled;
1533 }
1534
1535 static u8 qed_dcbnl_getdcbx(struct qed_dev *cdev)
1536 {
1537         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1538         struct qed_dcbx_get *dcbx_info;
1539         u8 mode = 0;
1540
1541         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1542         if (!dcbx_info)
1543                 return 0;
1544
1545         if (dcbx_info->operational.enabled)
1546                 mode |= DCB_CAP_DCBX_LLD_MANAGED;
1547         if (dcbx_info->operational.ieee)
1548                 mode |= DCB_CAP_DCBX_VER_IEEE;
1549         if (dcbx_info->operational.cee)
1550                 mode |= DCB_CAP_DCBX_VER_CEE;
1551         if (dcbx_info->operational.local)
1552                 mode |= DCB_CAP_DCBX_STATIC;
1553
1554         DP_VERBOSE(hwfn, QED_MSG_DCB, "dcb mode = %d\n", mode);
1555         kfree(dcbx_info);
1556
1557         return mode;
1558 }
1559
1560 static void qed_dcbnl_setpgtccfgtx(struct qed_dev *cdev,
1561                                    int tc,
1562                                    u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
1563 {
1564         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1565         struct qed_dcbx_set dcbx_set;
1566         struct qed_ptt *ptt;
1567         int rc;
1568
1569         DP_VERBOSE(hwfn, QED_MSG_DCB,
1570                    "tc = %d pri_type = %d pgid = %d bw_pct = %d up_map = %d\n",
1571                    tc, pri_type, pgid, bw_pct, up_map);
1572
1573         if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
1574                 DP_INFO(hwfn, "Invalid tc %d\n", tc);
1575                 return;
1576         }
1577
1578         memset(&dcbx_set, 0, sizeof(dcbx_set));
1579         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1580         if (rc)
1581                 return;
1582
1583         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1584         dcbx_set.config.params.ets_pri_tc_tbl[tc] = pgid;
1585
1586         ptt = qed_ptt_acquire(hwfn);
1587         if (!ptt)
1588                 return;
1589
1590         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1591
1592         qed_ptt_release(hwfn, ptt);
1593 }
1594
1595 static void qed_dcbnl_setpgtccfgrx(struct qed_dev *cdev, int prio,
1596                                    u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
1597 {
1598         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1599 }
1600
1601 static void qed_dcbnl_setpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 bw_pct)
1602 {
1603         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1604         struct qed_dcbx_set dcbx_set;
1605         struct qed_ptt *ptt;
1606         int rc;
1607
1608         DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d bw_pct = %d\n", pgid, bw_pct);
1609         if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
1610                 DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
1611                 return;
1612         }
1613
1614         memset(&dcbx_set, 0, sizeof(dcbx_set));
1615         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1616         if (rc)
1617                 return;
1618
1619         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1620         dcbx_set.config.params.ets_tc_bw_tbl[pgid] = bw_pct;
1621
1622         ptt = qed_ptt_acquire(hwfn);
1623         if (!ptt)
1624                 return;
1625
1626         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1627
1628         qed_ptt_release(hwfn, ptt);
1629 }
1630
1631 static void qed_dcbnl_setpgbwgcfgrx(struct qed_dev *cdev, int pgid, u8 bw_pct)
1632 {
1633         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1634 }
1635
1636 static u8 qed_dcbnl_setall(struct qed_dev *cdev)
1637 {
1638         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1639         struct qed_dcbx_set dcbx_set;
1640         struct qed_ptt *ptt;
1641         int rc;
1642
1643         memset(&dcbx_set, 0, sizeof(dcbx_set));
1644         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1645         if (rc)
1646                 return 1;
1647
1648         ptt = qed_ptt_acquire(hwfn);
1649         if (!ptt)
1650                 return 1;
1651
1652         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 1);
1653
1654         qed_ptt_release(hwfn, ptt);
1655
1656         return rc;
1657 }
1658
1659 static int qed_dcbnl_setnumtcs(struct qed_dev *cdev, int tcid, u8 num)
1660 {
1661         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1662         struct qed_dcbx_set dcbx_set;
1663         struct qed_ptt *ptt;
1664         int rc;
1665
1666         DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d num = %d\n", tcid, num);
1667         memset(&dcbx_set, 0, sizeof(dcbx_set));
1668         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1669         if (rc)
1670                 return 1;
1671
1672         switch (tcid) {
1673         case DCB_NUMTCS_ATTR_PG:
1674                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1675                 dcbx_set.config.params.max_ets_tc = num;
1676                 break;
1677         case DCB_NUMTCS_ATTR_PFC:
1678                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1679                 dcbx_set.config.params.pfc.max_tc = num;
1680                 break;
1681         default:
1682                 DP_INFO(hwfn, "Invalid tcid %d\n", tcid);
1683                 return -EINVAL;
1684         }
1685
1686         ptt = qed_ptt_acquire(hwfn);
1687         if (!ptt)
1688                 return -EINVAL;
1689
1690         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1691
1692         qed_ptt_release(hwfn, ptt);
1693
1694         return 0;
1695 }
1696
1697 static void qed_dcbnl_setpfcstate(struct qed_dev *cdev, u8 state)
1698 {
1699         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1700         struct qed_dcbx_set dcbx_set;
1701         struct qed_ptt *ptt;
1702         int rc;
1703
1704         DP_VERBOSE(hwfn, QED_MSG_DCB, "new state = %d\n", state);
1705
1706         memset(&dcbx_set, 0, sizeof(dcbx_set));
1707         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1708         if (rc)
1709                 return;
1710
1711         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1712         dcbx_set.config.params.pfc.enabled = !!state;
1713
1714         ptt = qed_ptt_acquire(hwfn);
1715         if (!ptt)
1716                 return;
1717
1718         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1719
1720         qed_ptt_release(hwfn, ptt);
1721 }
1722
1723 static int qed_dcbnl_getapp(struct qed_dev *cdev, u8 idtype, u16 idval)
1724 {
1725         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1726         struct qed_dcbx_get *dcbx_info;
1727         struct qed_app_entry *entry;
1728         bool ethtype;
1729         u8 prio = 0;
1730         int i;
1731
1732         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1733         if (!dcbx_info)
1734                 return -EINVAL;
1735
1736         ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
1737         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
1738                 entry = &dcbx_info->operational.params.app_entry[i];
1739                 if ((entry->ethtype == ethtype) && (entry->proto_id == idval)) {
1740                         prio = entry->prio;
1741                         break;
1742                 }
1743         }
1744
1745         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
1746                 DP_ERR(cdev, "App entry (%d, %d) not found\n", idtype, idval);
1747                 kfree(dcbx_info);
1748                 return -EINVAL;
1749         }
1750
1751         kfree(dcbx_info);
1752
1753         return prio;
1754 }
1755
1756 static int qed_dcbnl_setapp(struct qed_dev *cdev,
1757                             u8 idtype, u16 idval, u8 pri_map)
1758 {
1759         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1760         struct qed_dcbx_set dcbx_set;
1761         struct qed_app_entry *entry;
1762         struct qed_ptt *ptt;
1763         bool ethtype;
1764         int rc, i;
1765
1766         memset(&dcbx_set, 0, sizeof(dcbx_set));
1767         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1768         if (rc)
1769                 return -EINVAL;
1770
1771         ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
1772         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
1773                 entry = &dcbx_set.config.params.app_entry[i];
1774                 if ((entry->ethtype == ethtype) && (entry->proto_id == idval))
1775                         break;
1776                 /* First empty slot */
1777                 if (!entry->proto_id) {
1778                         dcbx_set.config.params.num_app_entries++;
1779                         break;
1780                 }
1781         }
1782
1783         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
1784                 DP_ERR(cdev, "App table is full\n");
1785                 return -EBUSY;
1786         }
1787
1788         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
1789         dcbx_set.config.params.app_entry[i].ethtype = ethtype;
1790         dcbx_set.config.params.app_entry[i].proto_id = idval;
1791         dcbx_set.config.params.app_entry[i].prio = pri_map;
1792
1793         ptt = qed_ptt_acquire(hwfn);
1794         if (!ptt)
1795                 return -EBUSY;
1796
1797         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1798
1799         qed_ptt_release(hwfn, ptt);
1800
1801         return rc;
1802 }
1803
1804 static u8 qed_dcbnl_setdcbx(struct qed_dev *cdev, u8 mode)
1805 {
1806         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1807         struct qed_dcbx_set dcbx_set;
1808         struct qed_ptt *ptt;
1809         int rc;
1810
1811         DP_VERBOSE(hwfn, QED_MSG_DCB, "new mode = %x\n", mode);
1812
1813         if (!(mode & DCB_CAP_DCBX_VER_IEEE) &&
1814             !(mode & DCB_CAP_DCBX_VER_CEE) && !(mode & DCB_CAP_DCBX_STATIC)) {
1815                 DP_INFO(hwfn, "Allowed modes are cee, ieee or static\n");
1816                 return 1;
1817         }
1818
1819         memset(&dcbx_set, 0, sizeof(dcbx_set));
1820         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1821         if (rc)
1822                 return 1;
1823
1824         dcbx_set.ver_num = 0;
1825         if (mode & DCB_CAP_DCBX_VER_CEE) {
1826                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1827                 dcbx_set.enabled = true;
1828         }
1829
1830         if (mode & DCB_CAP_DCBX_VER_IEEE) {
1831                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1832                 dcbx_set.enabled = true;
1833         }
1834
1835         if (mode & DCB_CAP_DCBX_STATIC) {
1836                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_STATIC;
1837                 dcbx_set.enabled = true;
1838         }
1839
1840         ptt = qed_ptt_acquire(hwfn);
1841         if (!ptt)
1842                 return 1;
1843
1844         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1845
1846         qed_ptt_release(hwfn, ptt);
1847
1848         return rc;
1849 }
1850
1851 static u8 qed_dcbnl_getfeatcfg(struct qed_dev *cdev, int featid, u8 *flags)
1852 {
1853         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1854         struct qed_dcbx_get *dcbx_info;
1855
1856         DP_VERBOSE(hwfn, QED_MSG_DCB, "Feature id  = %d\n", featid);
1857         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1858         if (!dcbx_info)
1859                 return 1;
1860
1861         *flags = 0;
1862         switch (featid) {
1863         case DCB_FEATCFG_ATTR_PG:
1864                 if (dcbx_info->operational.params.ets_enabled)
1865                         *flags = DCB_FEATCFG_ENABLE;
1866                 else
1867                         *flags = DCB_FEATCFG_ERROR;
1868                 break;
1869         case DCB_FEATCFG_ATTR_PFC:
1870                 if (dcbx_info->operational.params.pfc.enabled)
1871                         *flags = DCB_FEATCFG_ENABLE;
1872                 else
1873                         *flags = DCB_FEATCFG_ERROR;
1874                 break;
1875         case DCB_FEATCFG_ATTR_APP:
1876                 if (dcbx_info->operational.params.app_valid)
1877                         *flags = DCB_FEATCFG_ENABLE;
1878                 else
1879                         *flags = DCB_FEATCFG_ERROR;
1880                 break;
1881         default:
1882                 DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
1883                 kfree(dcbx_info);
1884                 return 1;
1885         }
1886
1887         DP_VERBOSE(hwfn, QED_MSG_DCB, "flags = %d\n", *flags);
1888         kfree(dcbx_info);
1889
1890         return 0;
1891 }
1892
1893 static u8 qed_dcbnl_setfeatcfg(struct qed_dev *cdev, int featid, u8 flags)
1894 {
1895         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1896         struct qed_dcbx_set dcbx_set;
1897         bool enabled, willing;
1898         struct qed_ptt *ptt;
1899         int rc;
1900
1901         DP_VERBOSE(hwfn, QED_MSG_DCB, "featid = %d flags = %d\n",
1902                    featid, flags);
1903         memset(&dcbx_set, 0, sizeof(dcbx_set));
1904         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1905         if (rc)
1906                 return 1;
1907
1908         enabled = !!(flags & DCB_FEATCFG_ENABLE);
1909         willing = !!(flags & DCB_FEATCFG_WILLING);
1910         switch (featid) {
1911         case DCB_FEATCFG_ATTR_PG:
1912                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1913                 dcbx_set.config.params.ets_enabled = enabled;
1914                 dcbx_set.config.params.ets_willing = willing;
1915                 break;
1916         case DCB_FEATCFG_ATTR_PFC:
1917                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1918                 dcbx_set.config.params.pfc.enabled = enabled;
1919                 dcbx_set.config.params.pfc.willing = willing;
1920                 break;
1921         case DCB_FEATCFG_ATTR_APP:
1922                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
1923                 dcbx_set.config.params.app_willing = willing;
1924                 break;
1925         default:
1926                 DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
1927                 return 1;
1928         }
1929
1930         ptt = qed_ptt_acquire(hwfn);
1931         if (!ptt)
1932                 return 1;
1933
1934         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1935
1936         qed_ptt_release(hwfn, ptt);
1937
1938         return 0;
1939 }
1940
1941 static int qed_dcbnl_peer_getappinfo(struct qed_dev *cdev,
1942                                      struct dcb_peer_app_info *info,
1943                                      u16 *app_count)
1944 {
1945         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1946         struct qed_dcbx_get *dcbx_info;
1947
1948         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1949         if (!dcbx_info)
1950                 return -EINVAL;
1951
1952         info->willing = dcbx_info->remote.params.app_willing;
1953         info->error = dcbx_info->remote.params.app_error;
1954         *app_count = dcbx_info->remote.params.num_app_entries;
1955         kfree(dcbx_info);
1956
1957         return 0;
1958 }
1959
1960 static int qed_dcbnl_peer_getapptable(struct qed_dev *cdev,
1961                                       struct dcb_app *table)
1962 {
1963         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1964         struct qed_dcbx_get *dcbx_info;
1965         int i;
1966
1967         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1968         if (!dcbx_info)
1969                 return -EINVAL;
1970
1971         for (i = 0; i < dcbx_info->remote.params.num_app_entries; i++) {
1972                 if (dcbx_info->remote.params.app_entry[i].ethtype)
1973                         table[i].selector = DCB_APP_IDTYPE_ETHTYPE;
1974                 else
1975                         table[i].selector = DCB_APP_IDTYPE_PORTNUM;
1976                 table[i].priority = dcbx_info->remote.params.app_entry[i].prio;
1977                 table[i].protocol =
1978                     dcbx_info->remote.params.app_entry[i].proto_id;
1979         }
1980
1981         kfree(dcbx_info);
1982
1983         return 0;
1984 }
1985
1986 static int qed_dcbnl_cee_peer_getpfc(struct qed_dev *cdev, struct cee_pfc *pfc)
1987 {
1988         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1989         struct qed_dcbx_get *dcbx_info;
1990         int i;
1991
1992         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1993         if (!dcbx_info)
1994                 return -EINVAL;
1995
1996         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
1997                 if (dcbx_info->remote.params.pfc.prio[i])
1998                         pfc->pfc_en |= BIT(i);
1999
2000         pfc->tcs_supported = dcbx_info->remote.params.pfc.max_tc;
2001         DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d tcs_supported = %d\n",
2002                    pfc->pfc_en, pfc->tcs_supported);
2003         kfree(dcbx_info);
2004
2005         return 0;
2006 }
2007
2008 static int qed_dcbnl_cee_peer_getpg(struct qed_dev *cdev, struct cee_pg *pg)
2009 {
2010         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2011         struct qed_dcbx_get *dcbx_info;
2012         int i;
2013
2014         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
2015         if (!dcbx_info)
2016                 return -EINVAL;
2017
2018         pg->willing = dcbx_info->remote.params.ets_willing;
2019         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
2020                 pg->pg_bw[i] = dcbx_info->remote.params.ets_tc_bw_tbl[i];
2021                 pg->prio_pg[i] = dcbx_info->remote.params.ets_pri_tc_tbl[i];
2022         }
2023
2024         DP_VERBOSE(hwfn, QED_MSG_DCB, "willing = %d", pg->willing);
2025         kfree(dcbx_info);
2026
2027         return 0;
2028 }
2029
2030 static int qed_dcbnl_get_ieee_pfc(struct qed_dev *cdev,
2031                                   struct ieee_pfc *pfc, bool remote)
2032 {
2033         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2034         struct qed_dcbx_params *params;
2035         struct qed_dcbx_get *dcbx_info;
2036         int rc, i;
2037
2038         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2039         if (!dcbx_info)
2040                 return -EINVAL;
2041
2042         if (!dcbx_info->operational.ieee) {
2043                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2044                 kfree(dcbx_info);
2045                 return -EINVAL;
2046         }
2047
2048         if (remote) {
2049                 memset(dcbx_info, 0, sizeof(*dcbx_info));
2050                 rc = qed_dcbx_query_params(hwfn, dcbx_info,
2051                                            QED_DCBX_REMOTE_MIB);
2052                 if (rc) {
2053                         kfree(dcbx_info);
2054                         return -EINVAL;
2055                 }
2056
2057                 params = &dcbx_info->remote.params;
2058         } else {
2059                 params = &dcbx_info->operational.params;
2060         }
2061
2062         pfc->pfc_cap = params->pfc.max_tc;
2063         pfc->pfc_en = 0;
2064         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2065                 if (params->pfc.prio[i])
2066                         pfc->pfc_en |= BIT(i);
2067
2068         kfree(dcbx_info);
2069
2070         return 0;
2071 }
2072
2073 static int qed_dcbnl_ieee_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2074 {
2075         return qed_dcbnl_get_ieee_pfc(cdev, pfc, false);
2076 }
2077
2078 static int qed_dcbnl_ieee_setpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2079 {
2080         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2081         struct qed_dcbx_get *dcbx_info;
2082         struct qed_dcbx_set dcbx_set;
2083         struct qed_ptt *ptt;
2084         int rc, i;
2085
2086         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2087         if (!dcbx_info)
2088                 return -EINVAL;
2089
2090         if (!dcbx_info->operational.ieee) {
2091                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2092                 kfree(dcbx_info);
2093                 return -EINVAL;
2094         }
2095
2096         kfree(dcbx_info);
2097
2098         memset(&dcbx_set, 0, sizeof(dcbx_set));
2099         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2100         if (rc)
2101                 return -EINVAL;
2102
2103         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
2104         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2105                 dcbx_set.config.params.pfc.prio[i] = !!(pfc->pfc_en & BIT(i));
2106
2107         dcbx_set.config.params.pfc.max_tc = pfc->pfc_cap;
2108
2109         ptt = qed_ptt_acquire(hwfn);
2110         if (!ptt)
2111                 return -EINVAL;
2112
2113         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2114
2115         qed_ptt_release(hwfn, ptt);
2116
2117         return rc;
2118 }
2119
2120 static int qed_dcbnl_get_ieee_ets(struct qed_dev *cdev,
2121                                   struct ieee_ets *ets, bool remote)
2122 {
2123         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2124         struct qed_dcbx_get *dcbx_info;
2125         struct qed_dcbx_params *params;
2126         int rc;
2127
2128         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2129         if (!dcbx_info)
2130                 return -EINVAL;
2131
2132         if (!dcbx_info->operational.ieee) {
2133                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2134                 kfree(dcbx_info);
2135                 return -EINVAL;
2136         }
2137
2138         if (remote) {
2139                 memset(dcbx_info, 0, sizeof(*dcbx_info));
2140                 rc = qed_dcbx_query_params(hwfn, dcbx_info,
2141                                            QED_DCBX_REMOTE_MIB);
2142                 if (rc) {
2143                         kfree(dcbx_info);
2144                         return -EINVAL;
2145                 }
2146
2147                 params = &dcbx_info->remote.params;
2148         } else {
2149                 params = &dcbx_info->operational.params;
2150         }
2151
2152         ets->ets_cap = params->max_ets_tc;
2153         ets->willing = params->ets_willing;
2154         ets->cbs = params->ets_cbs;
2155         memcpy(ets->tc_tx_bw, params->ets_tc_bw_tbl, sizeof(ets->tc_tx_bw));
2156         memcpy(ets->tc_tsa, params->ets_tc_tsa_tbl, sizeof(ets->tc_tsa));
2157         memcpy(ets->prio_tc, params->ets_pri_tc_tbl, sizeof(ets->prio_tc));
2158         kfree(dcbx_info);
2159
2160         return 0;
2161 }
2162
2163 static int qed_dcbnl_ieee_getets(struct qed_dev *cdev, struct ieee_ets *ets)
2164 {
2165         return qed_dcbnl_get_ieee_ets(cdev, ets, false);
2166 }
2167
2168 static int qed_dcbnl_ieee_setets(struct qed_dev *cdev, struct ieee_ets *ets)
2169 {
2170         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2171         struct qed_dcbx_get *dcbx_info;
2172         struct qed_dcbx_set dcbx_set;
2173         struct qed_ptt *ptt;
2174         int rc;
2175
2176         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2177         if (!dcbx_info)
2178                 return -EINVAL;
2179
2180         if (!dcbx_info->operational.ieee) {
2181                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2182                 kfree(dcbx_info);
2183                 return -EINVAL;
2184         }
2185
2186         kfree(dcbx_info);
2187
2188         memset(&dcbx_set, 0, sizeof(dcbx_set));
2189         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2190         if (rc)
2191                 return -EINVAL;
2192
2193         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
2194         dcbx_set.config.params.max_ets_tc = ets->ets_cap;
2195         dcbx_set.config.params.ets_willing = ets->willing;
2196         dcbx_set.config.params.ets_cbs = ets->cbs;
2197         memcpy(dcbx_set.config.params.ets_tc_bw_tbl, ets->tc_tx_bw,
2198                sizeof(ets->tc_tx_bw));
2199         memcpy(dcbx_set.config.params.ets_tc_tsa_tbl, ets->tc_tsa,
2200                sizeof(ets->tc_tsa));
2201         memcpy(dcbx_set.config.params.ets_pri_tc_tbl, ets->prio_tc,
2202                sizeof(ets->prio_tc));
2203
2204         ptt = qed_ptt_acquire(hwfn);
2205         if (!ptt)
2206                 return -EINVAL;
2207
2208         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2209
2210         qed_ptt_release(hwfn, ptt);
2211
2212         return rc;
2213 }
2214
2215 static int
2216 qed_dcbnl_ieee_peer_getets(struct qed_dev *cdev, struct ieee_ets *ets)
2217 {
2218         return qed_dcbnl_get_ieee_ets(cdev, ets, true);
2219 }
2220
2221 static int
2222 qed_dcbnl_ieee_peer_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2223 {
2224         return qed_dcbnl_get_ieee_pfc(cdev, pfc, true);
2225 }
2226
2227 static int qed_get_sf_ieee_value(u8 selector, u8 *sf_ieee)
2228 {
2229         switch (selector) {
2230         case IEEE_8021QAZ_APP_SEL_ETHERTYPE:
2231                 *sf_ieee = QED_DCBX_SF_IEEE_ETHTYPE;
2232                 break;
2233         case IEEE_8021QAZ_APP_SEL_STREAM:
2234                 *sf_ieee = QED_DCBX_SF_IEEE_TCP_PORT;
2235                 break;
2236         case IEEE_8021QAZ_APP_SEL_DGRAM:
2237                 *sf_ieee = QED_DCBX_SF_IEEE_UDP_PORT;
2238                 break;
2239         case IEEE_8021QAZ_APP_SEL_ANY:
2240                 *sf_ieee = QED_DCBX_SF_IEEE_TCP_UDP_PORT;
2241                 break;
2242         default:
2243                 return -EINVAL;
2244         }
2245
2246         return 0;
2247 }
2248
2249 static int qed_dcbnl_ieee_getapp(struct qed_dev *cdev, struct dcb_app *app)
2250 {
2251         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2252         struct qed_dcbx_get *dcbx_info;
2253         struct qed_app_entry *entry;
2254         u8 prio = 0;
2255         u8 sf_ieee;
2256         int i;
2257
2258         DP_VERBOSE(hwfn, QED_MSG_DCB, "selector = %d protocol = %d\n",
2259                    app->selector, app->protocol);
2260
2261         if (qed_get_sf_ieee_value(app->selector, &sf_ieee)) {
2262                 DP_INFO(cdev, "Invalid selector field value %d\n",
2263                         app->selector);
2264                 return -EINVAL;
2265         }
2266
2267         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2268         if (!dcbx_info)
2269                 return -EINVAL;
2270
2271         if (!dcbx_info->operational.ieee) {
2272                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2273                 kfree(dcbx_info);
2274                 return -EINVAL;
2275         }
2276
2277         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
2278                 entry = &dcbx_info->operational.params.app_entry[i];
2279                 if ((entry->sf_ieee == sf_ieee) &&
2280                     (entry->proto_id == app->protocol)) {
2281                         prio = entry->prio;
2282                         break;
2283                 }
2284         }
2285
2286         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
2287                 DP_ERR(cdev, "App entry (%d, %d) not found\n", app->selector,
2288                        app->protocol);
2289                 kfree(dcbx_info);
2290                 return -EINVAL;
2291         }
2292
2293         app->priority = ffs(prio) - 1;
2294
2295         kfree(dcbx_info);
2296
2297         return 0;
2298 }
2299
2300 static int qed_dcbnl_ieee_setapp(struct qed_dev *cdev, struct dcb_app *app)
2301 {
2302         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2303         struct qed_dcbx_get *dcbx_info;
2304         struct qed_dcbx_set dcbx_set;
2305         struct qed_app_entry *entry;
2306         struct qed_ptt *ptt;
2307         u8 sf_ieee;
2308         int rc, i;
2309
2310         DP_VERBOSE(hwfn, QED_MSG_DCB, "selector = %d protocol = %d pri = %d\n",
2311                    app->selector, app->protocol, app->priority);
2312         if (app->priority < 0 || app->priority >= QED_MAX_PFC_PRIORITIES) {
2313                 DP_INFO(hwfn, "Invalid priority %d\n", app->priority);
2314                 return -EINVAL;
2315         }
2316
2317         if (qed_get_sf_ieee_value(app->selector, &sf_ieee)) {
2318                 DP_INFO(cdev, "Invalid selector field value %d\n",
2319                         app->selector);
2320                 return -EINVAL;
2321         }
2322
2323         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2324         if (!dcbx_info)
2325                 return -EINVAL;
2326
2327         if (!dcbx_info->operational.ieee) {
2328                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2329                 kfree(dcbx_info);
2330                 return -EINVAL;
2331         }
2332
2333         kfree(dcbx_info);
2334
2335         memset(&dcbx_set, 0, sizeof(dcbx_set));
2336         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2337         if (rc)
2338                 return -EINVAL;
2339
2340         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
2341                 entry = &dcbx_set.config.params.app_entry[i];
2342                 if ((entry->sf_ieee == sf_ieee) &&
2343                     (entry->proto_id == app->protocol))
2344                         break;
2345                 /* First empty slot */
2346                 if (!entry->proto_id) {
2347                         dcbx_set.config.params.num_app_entries++;
2348                         break;
2349                 }
2350         }
2351
2352         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
2353                 DP_ERR(cdev, "App table is full\n");
2354                 return -EBUSY;
2355         }
2356
2357         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
2358         dcbx_set.config.params.app_entry[i].sf_ieee = sf_ieee;
2359         dcbx_set.config.params.app_entry[i].proto_id = app->protocol;
2360         dcbx_set.config.params.app_entry[i].prio = BIT(app->priority);
2361
2362         ptt = qed_ptt_acquire(hwfn);
2363         if (!ptt)
2364                 return -EBUSY;
2365
2366         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2367
2368         qed_ptt_release(hwfn, ptt);
2369
2370         return rc;
2371 }
2372
2373 const struct qed_eth_dcbnl_ops qed_dcbnl_ops_pass = {
2374         .getstate = qed_dcbnl_getstate,
2375         .setstate = qed_dcbnl_setstate,
2376         .getpgtccfgtx = qed_dcbnl_getpgtccfgtx,
2377         .getpgbwgcfgtx = qed_dcbnl_getpgbwgcfgtx,
2378         .getpgtccfgrx = qed_dcbnl_getpgtccfgrx,
2379         .getpgbwgcfgrx = qed_dcbnl_getpgbwgcfgrx,
2380         .getpfccfg = qed_dcbnl_getpfccfg,
2381         .setpfccfg = qed_dcbnl_setpfccfg,
2382         .getcap = qed_dcbnl_getcap,
2383         .getnumtcs = qed_dcbnl_getnumtcs,
2384         .getpfcstate = qed_dcbnl_getpfcstate,
2385         .getdcbx = qed_dcbnl_getdcbx,
2386         .setpgtccfgtx = qed_dcbnl_setpgtccfgtx,
2387         .setpgtccfgrx = qed_dcbnl_setpgtccfgrx,
2388         .setpgbwgcfgtx = qed_dcbnl_setpgbwgcfgtx,
2389         .setpgbwgcfgrx = qed_dcbnl_setpgbwgcfgrx,
2390         .setall = qed_dcbnl_setall,
2391         .setnumtcs = qed_dcbnl_setnumtcs,
2392         .setpfcstate = qed_dcbnl_setpfcstate,
2393         .setapp = qed_dcbnl_setapp,
2394         .setdcbx = qed_dcbnl_setdcbx,
2395         .setfeatcfg = qed_dcbnl_setfeatcfg,
2396         .getfeatcfg = qed_dcbnl_getfeatcfg,
2397         .getapp = qed_dcbnl_getapp,
2398         .peer_getappinfo = qed_dcbnl_peer_getappinfo,
2399         .peer_getapptable = qed_dcbnl_peer_getapptable,
2400         .cee_peer_getpfc = qed_dcbnl_cee_peer_getpfc,
2401         .cee_peer_getpg = qed_dcbnl_cee_peer_getpg,
2402         .ieee_getpfc = qed_dcbnl_ieee_getpfc,
2403         .ieee_setpfc = qed_dcbnl_ieee_setpfc,
2404         .ieee_getets = qed_dcbnl_ieee_getets,
2405         .ieee_setets = qed_dcbnl_ieee_setets,
2406         .ieee_peer_getpfc = qed_dcbnl_ieee_peer_getpfc,
2407         .ieee_peer_getets = qed_dcbnl_ieee_peer_getets,
2408         .ieee_getapp = qed_dcbnl_ieee_getapp,
2409         .ieee_setapp = qed_dcbnl_ieee_setapp,
2410 };
2411
2412 #endif