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

   1 /* QLogic qed NIC Driver
   2  * Copyright (c) 2015-2017  QLogic Corporation
   3  *
   4  * This software is available to you under a choice of one of two
   5  * licenses.  You may choose to be licensed under the terms of the GNU
   6  * General Public License (GPL) Version 2, available from the file
   7  * COPYING in the main directory of this source tree, or the
   8  * OpenIB.org BSD license below:
   9  *
  10  *     Redistribution and use in source and binary forms, with or
  11  *     without modification, are permitted provided that the following
  12  *     conditions are met:
  13  *
  14  *      - Redistributions of source code must retain the above
  15  *        copyright notice, this list of conditions and the following
  16  *        disclaimer.
  17  *
  18  *      - Redistributions in binary form must reproduce the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer in the documentation and /or other materials
  21  *        provided with the distribution.
  22  *
  23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30  * SOFTWARE.
  31  */
  32
  33 #include <linux/types.h>
  34 #include <asm/byteorder.h>
  35 #include <linux/bitops.h>
  36 #include <linux/dcbnl.h>
  37 #include <linux/errno.h>
  38 #include <linux/kernel.h>
  39 #include <linux/slab.h>
  40 #include <linux/string.h>
  41 #include "qed.h"
  42 #include "qed_cxt.h"
  43 #include "qed_dcbx.h"
  44 #include "qed_hsi.h"
  45 #include "qed_sp.h"
  46 #include "qed_sriov.h"
  47 #include "qed_rdma.h"
  48 #ifdef CONFIG_DCB
  49 #include <linux/qed/qed_eth_if.h>
  50 #endif
  51
  52 #define QED_DCBX_MAX_MIB_READ_TRY       (100)
  53 #define QED_ETH_TYPE_DEFAULT            (0)
  54 #define QED_ETH_TYPE_ROCE               (0x8915)
  55 #define QED_UDP_PORT_TYPE_ROCE_V2       (0x12B7)
  56 #define QED_ETH_TYPE_FCOE               (0x8906)
  57 #define QED_TCP_PORT_ISCSI              (0xCBC)
  58
  59 #define QED_DCBX_INVALID_PRIORITY       0xFF
  60
  61 /* Get Traffic Class from priority traffic class table, 4 bits represent
  62  * the traffic class corresponding to the priority.
  63  */
  64 #define QED_DCBX_PRIO2TC(prio_tc_tbl, prio) \
  65         ((u32)(prio_tc_tbl >> ((7 - prio) * 4)) & 0x7)
  66
  67 static const struct qed_dcbx_app_metadata qed_dcbx_app_update[] = {
  68         {DCBX_PROTOCOL_ISCSI, "ISCSI", QED_PCI_ISCSI},
  69         {DCBX_PROTOCOL_FCOE, "FCOE", QED_PCI_FCOE},
  70         {DCBX_PROTOCOL_ROCE, "ROCE", QED_PCI_ETH_ROCE},
  71         {DCBX_PROTOCOL_ROCE_V2, "ROCE_V2", QED_PCI_ETH_ROCE},
  72         {DCBX_PROTOCOL_ETH, "ETH", QED_PCI_ETH},
  73 };
  74
  75 static bool qed_dcbx_app_ethtype(u32 app_info_bitmap)
  76 {
  77         return !!(QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) ==
  78                   DCBX_APP_SF_ETHTYPE);
  79 }
  80
  81 static bool qed_dcbx_ieee_app_ethtype(u32 app_info_bitmap)
  82 {
  83         u8 mfw_val = QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE);
  84
  85         /* Old MFW */
  86         if (mfw_val == DCBX_APP_SF_IEEE_RESERVED)
  87                 return qed_dcbx_app_ethtype(app_info_bitmap);
  88
  89         return !!(mfw_val == DCBX_APP_SF_IEEE_ETHTYPE);
  90 }
  91
  92 static bool qed_dcbx_app_port(u32 app_info_bitmap)
  93 {
  94         return !!(QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) ==
  95                   DCBX_APP_SF_PORT);
  96 }
  97
  98 static bool qed_dcbx_ieee_app_port(u32 app_info_bitmap, u8 type)
  99 {
 100         u8 mfw_val = QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE);
 101
 102         /* Old MFW */
 103         if (mfw_val == DCBX_APP_SF_IEEE_RESERVED)
 104                 return qed_dcbx_app_port(app_info_bitmap);
 105
 106         return !!(mfw_val == type || mfw_val == DCBX_APP_SF_IEEE_TCP_UDP_PORT);
 107 }
 108
 109 static bool qed_dcbx_default_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
 110 {
 111         bool ethtype;
 112
 113         if (ieee)
 114                 ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
 115         else
 116                 ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
 117
 118         return !!(ethtype && (proto_id == QED_ETH_TYPE_DEFAULT));
 119 }
 120
 121 static bool qed_dcbx_iscsi_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
 122 {
 123         bool port;
 124
 125         if (ieee)
 126                 port = qed_dcbx_ieee_app_port(app_info_bitmap,
 127                                               DCBX_APP_SF_IEEE_TCP_PORT);
 128         else
 129                 port = qed_dcbx_app_port(app_info_bitmap);
 130
 131         return !!(port && (proto_id == QED_TCP_PORT_ISCSI));
 132 }
 133
 134 static bool qed_dcbx_fcoe_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
 135 {
 136         bool ethtype;
 137
 138         if (ieee)
 139                 ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
 140         else
 141                 ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
 142
 143         return !!(ethtype && (proto_id == QED_ETH_TYPE_FCOE));
 144 }
 145
 146 static bool qed_dcbx_roce_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
 147 {
 148         bool ethtype;
 149
 150         if (ieee)
 151                 ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
 152         else
 153                 ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
 154
 155         return !!(ethtype && (proto_id == QED_ETH_TYPE_ROCE));
 156 }
 157
 158 static bool qed_dcbx_roce_v2_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
 159 {
 160         bool port;
 161
 162         if (ieee)
 163                 port = qed_dcbx_ieee_app_port(app_info_bitmap,
 164                                               DCBX_APP_SF_IEEE_UDP_PORT);
 165         else
 166                 port = qed_dcbx_app_port(app_info_bitmap);
 167
 168         return !!(port && (proto_id == QED_UDP_PORT_TYPE_ROCE_V2));
 169 }
 170
 171 static void
 172 qed_dcbx_dp_protocol(struct qed_hwfn *p_hwfn, struct qed_dcbx_results *p_data)
 173 {
 174         enum dcbx_protocol_type id;
 175         int i;
 176
 177         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "DCBX negotiated: %d\n",
 178                    p_data->dcbx_enabled);
 179
 180         for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) {
 181                 id = qed_dcbx_app_update[i].id;
 182
 183                 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 184                            "%s info: update %d, enable %d, prio %d, tc %d, num_tc %d\n",
 185                            qed_dcbx_app_update[i].name, p_data->arr[id].update,
 186                            p_data->arr[id].enable, p_data->arr[id].priority,
 187                            p_data->arr[id].tc, p_hwfn->hw_info.num_active_tc);
 188         }
 189 }
 190
 191 static void
 192 qed_dcbx_set_params(struct qed_dcbx_results *p_data,
 193                     struct qed_hw_info *p_info,
 194                     bool enable,
 195                     u8 prio,
 196                     u8 tc,
 197                     enum dcbx_protocol_type type,
 198                     enum qed_pci_personality personality)
 199 {
 200         /* PF update ramrod data */
 201         p_data->arr[type].enable = enable;
 202         p_data->arr[type].priority = prio;
 203         p_data->arr[type].tc = tc;
 204         if (enable)
 205                 p_data->arr[type].update = UPDATE_DCB;
 206         else
 207                 p_data->arr[type].update = DONT_UPDATE_DCB_DSCP;
 208
 209         /* QM reconf data */
 210         if (p_info->personality == personality)
 211                 p_info->offload_tc = tc;
 212 }
 213
 214 /* Update app protocol data and hw_info fields with the TLV info */
 215 static void
 216 qed_dcbx_update_app_info(struct qed_dcbx_results *p_data,
 217                          struct qed_hwfn *p_hwfn,
 218                          bool enable,
 219                          u8 prio, u8 tc, enum dcbx_protocol_type type)
 220 {
 221         struct qed_hw_info *p_info = &p_hwfn->hw_info;
 222         enum qed_pci_personality personality;
 223         enum dcbx_protocol_type id;
 224         char *name;
 225         int i;
 226
 227         for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) {
 228                 id = qed_dcbx_app_update[i].id;
 229
 230                 if (type != id)
 231                         continue;
 232
 233                 personality = qed_dcbx_app_update[i].personality;
 234                 name = qed_dcbx_app_update[i].name;
 235
 236                 qed_dcbx_set_params(p_data, p_info, enable,
 237                                     prio, tc, type, personality);
 238         }
 239 }
 240
 241 static bool
 242 qed_dcbx_get_app_protocol_type(struct qed_hwfn *p_hwfn,
 243                                u32 app_prio_bitmap,
 244                                u16 id, enum dcbx_protocol_type *type, bool ieee)
 245 {
 246         if (qed_dcbx_fcoe_tlv(app_prio_bitmap, id, ieee)) {
 247                 *type = DCBX_PROTOCOL_FCOE;
 248         } else if (qed_dcbx_roce_tlv(app_prio_bitmap, id, ieee)) {
 249                 *type = DCBX_PROTOCOL_ROCE;
 250         } else if (qed_dcbx_iscsi_tlv(app_prio_bitmap, id, ieee)) {
 251                 *type = DCBX_PROTOCOL_ISCSI;
 252         } else if (qed_dcbx_default_tlv(app_prio_bitmap, id, ieee)) {
 253                 *type = DCBX_PROTOCOL_ETH;
 254         } else if (qed_dcbx_roce_v2_tlv(app_prio_bitmap, id, ieee)) {
 255                 *type = DCBX_PROTOCOL_ROCE_V2;
 256         } else {
 257                 *type = DCBX_MAX_PROTOCOL_TYPE;
 258                 DP_ERR(p_hwfn, "No action required, App TLV entry = 0x%x\n",
 259                        app_prio_bitmap);
 260                 return false;
 261         }
 262
 263         return true;
 264 }
 265
 266 /* Parse app TLV's to update TC information in hw_info structure for
 267  * reconfiguring QM. Get protocol specific data for PF update ramrod command.
 268  */
 269 static int
 270 qed_dcbx_process_tlv(struct qed_hwfn *p_hwfn,
 271                      struct qed_dcbx_results *p_data,
 272                      struct dcbx_app_priority_entry *p_tbl,
 273                      u32 pri_tc_tbl, int count, u8 dcbx_version)
 274 {
 275         enum dcbx_protocol_type type;
 276         u8 tc, priority_map;
 277         bool enable, ieee;
 278         u16 protocol_id;
 279         int priority;
 280         int i;
 281
 282         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Num APP entries = %d\n", count);
 283
 284         ieee = (dcbx_version == DCBX_CONFIG_VERSION_IEEE);
 285         /* Parse APP TLV */
 286         for (i = 0; i < count; i++) {
 287                 protocol_id = QED_MFW_GET_FIELD(p_tbl[i].entry,
 288                                                 DCBX_APP_PROTOCOL_ID);
 289                 priority_map = QED_MFW_GET_FIELD(p_tbl[i].entry,
 290                                                  DCBX_APP_PRI_MAP);
 291                 priority = ffs(priority_map) - 1;
 292                 if (priority < 0) {
 293                         DP_ERR(p_hwfn, "Invalid priority\n");
 294                         return -EINVAL;
 295                 }
 296
 297                 tc = QED_DCBX_PRIO2TC(pri_tc_tbl, priority);
 298                 if (qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
 299                                                    protocol_id, &type, ieee)) {
 300                         /* ETH always have the enable bit reset, as it gets
 301                          * vlan information per packet. For other protocols,
 302                          * should be set according to the dcbx_enabled
 303                          * indication, but we only got here if there was an
 304                          * app tlv for the protocol, so dcbx must be enabled.
 305                          */
 306                         enable = !(type == DCBX_PROTOCOL_ETH);
 307
 308                         qed_dcbx_update_app_info(p_data, p_hwfn, enable,
 309                                                  priority, tc, type);
 310                 }
 311         }
 312
 313         /* Update ramrod protocol data and hw_info fields
 314          * with default info when corresponding APP TLV's are not detected.
 315          * The enabled field has a different logic for ethernet as only for
 316          * ethernet dcb should disabled by default, as the information arrives
 317          * from the OS (unless an explicit app tlv was present).
 318          */
 319         tc = p_data->arr[DCBX_PROTOCOL_ETH].tc;
 320         priority = p_data->arr[DCBX_PROTOCOL_ETH].priority;
 321         for (type = 0; type < DCBX_MAX_PROTOCOL_TYPE; type++) {
 322                 if (p_data->arr[type].update)
 323                         continue;
 324
 325                 enable = (type == DCBX_PROTOCOL_ETH) ? false : !!dcbx_version;
 326                 qed_dcbx_update_app_info(p_data, p_hwfn, enable,
 327                                          priority, tc, type);
 328         }
 329
 330         return 0;
 331 }
 332
 333 /* Parse app TLV's to update TC information in hw_info structure for
 334  * reconfiguring QM. Get protocol specific data for PF update ramrod command.
 335  */
 336 static int qed_dcbx_process_mib_info(struct qed_hwfn *p_hwfn)
 337 {
 338         struct dcbx_app_priority_feature *p_app;
 339         struct dcbx_app_priority_entry *p_tbl;
 340         struct qed_dcbx_results data = { 0 };
 341         struct dcbx_ets_feature *p_ets;
 342         struct qed_hw_info *p_info;
 343         u32 pri_tc_tbl, flags;
 344         u8 dcbx_version;
 345         int num_entries;
 346         int rc = 0;
 347
 348         flags = p_hwfn->p_dcbx_info->operational.flags;
 349         dcbx_version = QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION);
 350
 351         p_app = &p_hwfn->p_dcbx_info->operational.features.app;
 352         p_tbl = p_app->app_pri_tbl;
 353
 354         p_ets = &p_hwfn->p_dcbx_info->operational.features.ets;
 355         pri_tc_tbl = p_ets->pri_tc_tbl[0];
 356
 357         p_info = &p_hwfn->hw_info;
 358         num_entries = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_NUM_ENTRIES);
 359
 360         rc = qed_dcbx_process_tlv(p_hwfn, &data, p_tbl, pri_tc_tbl,
 361                                   num_entries, dcbx_version);
 362         if (rc)
 363                 return rc;
 364
 365         p_info->num_active_tc = QED_MFW_GET_FIELD(p_ets->flags,
 366                                                   DCBX_ETS_MAX_TCS);
 367         p_hwfn->qm_info.ooo_tc = QED_MFW_GET_FIELD(p_ets->flags, DCBX_OOO_TC);
 368         data.pf_id = p_hwfn->rel_pf_id;
 369         data.dcbx_enabled = !!dcbx_version;
 370
 371         qed_dcbx_dp_protocol(p_hwfn, &data);
 372
 373         memcpy(&p_hwfn->p_dcbx_info->results, &data,
 374                sizeof(struct qed_dcbx_results));
 375
 376         return 0;
 377 }
 378
 379 static int
 380 qed_dcbx_copy_mib(struct qed_hwfn *p_hwfn,
 381                   struct qed_ptt *p_ptt,
 382                   struct qed_dcbx_mib_meta_data *p_data,
 383                   enum qed_mib_read_type type)
 384 {
 385         u32 prefix_seq_num, suffix_seq_num;
 386         int read_count = 0;
 387         int rc = 0;
 388
 389         /* The data is considered to be valid only if both sequence numbers are
 390          * the same.
 391          */
 392         do {
 393                 if (type == QED_DCBX_REMOTE_LLDP_MIB) {
 394                         qed_memcpy_from(p_hwfn, p_ptt, p_data->lldp_remote,
 395                                         p_data->addr, p_data->size);
 396                         prefix_seq_num = p_data->lldp_remote->prefix_seq_num;
 397                         suffix_seq_num = p_data->lldp_remote->suffix_seq_num;
 398                 } else {
 399                         qed_memcpy_from(p_hwfn, p_ptt, p_data->mib,
 400                                         p_data->addr, p_data->size);
 401                         prefix_seq_num = p_data->mib->prefix_seq_num;
 402                         suffix_seq_num = p_data->mib->suffix_seq_num;
 403                 }
 404                 read_count++;
 405
 406                 DP_VERBOSE(p_hwfn,
 407                            QED_MSG_DCB,
 408                            "mib type = %d, try count = %d prefix seq num  = %d suffix seq num = %d\n",
 409                            type, read_count, prefix_seq_num, suffix_seq_num);
 410         } while ((prefix_seq_num != suffix_seq_num) &&
 411                  (read_count < QED_DCBX_MAX_MIB_READ_TRY));
 412
 413         if (read_count >= QED_DCBX_MAX_MIB_READ_TRY) {
 414                 DP_ERR(p_hwfn,
 415                        "MIB read err, mib type = %d, try count = %d prefix seq num = %d suffix seq num = %d\n",
 416                        type, read_count, prefix_seq_num, suffix_seq_num);
 417                 rc = -EIO;
 418         }
 419
 420         return rc;
 421 }
 422
 423 static void
 424 qed_dcbx_get_priority_info(struct qed_hwfn *p_hwfn,
 425                            struct qed_dcbx_app_prio *p_prio,
 426                            struct qed_dcbx_results *p_results)
 427 {
 428         u8 val;
 429
 430         p_prio->roce = QED_DCBX_INVALID_PRIORITY;
 431         p_prio->roce_v2 = QED_DCBX_INVALID_PRIORITY;
 432         p_prio->iscsi = QED_DCBX_INVALID_PRIORITY;
 433         p_prio->fcoe = QED_DCBX_INVALID_PRIORITY;
 434
 435         if (p_results->arr[DCBX_PROTOCOL_ROCE].update &&
 436             p_results->arr[DCBX_PROTOCOL_ROCE].enable)
 437                 p_prio->roce = p_results->arr[DCBX_PROTOCOL_ROCE].priority;
 438
 439         if (p_results->arr[DCBX_PROTOCOL_ROCE_V2].update &&
 440             p_results->arr[DCBX_PROTOCOL_ROCE_V2].enable) {
 441                 val = p_results->arr[DCBX_PROTOCOL_ROCE_V2].priority;
 442                 p_prio->roce_v2 = val;
 443         }
 444
 445         if (p_results->arr[DCBX_PROTOCOL_ISCSI].update &&
 446             p_results->arr[DCBX_PROTOCOL_ISCSI].enable)
 447                 p_prio->iscsi = p_results->arr[DCBX_PROTOCOL_ISCSI].priority;
 448
 449         if (p_results->arr[DCBX_PROTOCOL_FCOE].update &&
 450             p_results->arr[DCBX_PROTOCOL_FCOE].enable)
 451                 p_prio->fcoe = p_results->arr[DCBX_PROTOCOL_FCOE].priority;
 452
 453         if (p_results->arr[DCBX_PROTOCOL_ETH].update &&
 454             p_results->arr[DCBX_PROTOCOL_ETH].enable)
 455                 p_prio->eth = p_results->arr[DCBX_PROTOCOL_ETH].priority;
 456
 457         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 458                    "Priorities: iscsi %d, roce %d, roce v2 %d, fcoe %d, eth %d\n",
 459                    p_prio->iscsi, p_prio->roce, p_prio->roce_v2, p_prio->fcoe,
 460                    p_prio->eth);
 461 }
 462
 463 static void
 464 qed_dcbx_get_app_data(struct qed_hwfn *p_hwfn,
 465                       struct dcbx_app_priority_feature *p_app,
 466                       struct dcbx_app_priority_entry *p_tbl,
 467                       struct qed_dcbx_params *p_params, bool ieee)
 468 {
 469         struct qed_app_entry *entry;
 470         u8 pri_map;
 471         int i;
 472
 473         p_params->app_willing = QED_MFW_GET_FIELD(p_app->flags,
 474                                                   DCBX_APP_WILLING);
 475         p_params->app_valid = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_ENABLED);
 476         p_params->app_error = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_ERROR);
 477         p_params->num_app_entries = QED_MFW_GET_FIELD(p_app->flags,
 478                                                       DCBX_APP_NUM_ENTRIES);
 479         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
 480                 entry = &p_params->app_entry[i];
 481                 if (ieee) {
 482                         u8 sf_ieee;
 483                         u32 val;
 484
 485                         sf_ieee = QED_MFW_GET_FIELD(p_tbl[i].entry,
 486                                                     DCBX_APP_SF_IEEE);
 487                         switch (sf_ieee) {
 488                         case DCBX_APP_SF_IEEE_RESERVED:
 489                                 /* Old MFW */
 490                                 val = QED_MFW_GET_FIELD(p_tbl[i].entry,
 491                                                         DCBX_APP_SF);
 492                                 entry->sf_ieee = val ?
 493                                     QED_DCBX_SF_IEEE_TCP_UDP_PORT :
 494                                     QED_DCBX_SF_IEEE_ETHTYPE;
 495                                 break;
 496                         case DCBX_APP_SF_IEEE_ETHTYPE:
 497                                 entry->sf_ieee = QED_DCBX_SF_IEEE_ETHTYPE;
 498                                 break;
 499                         case DCBX_APP_SF_IEEE_TCP_PORT:
 500                                 entry->sf_ieee = QED_DCBX_SF_IEEE_TCP_PORT;
 501                                 break;
 502                         case DCBX_APP_SF_IEEE_UDP_PORT:
 503                                 entry->sf_ieee = QED_DCBX_SF_IEEE_UDP_PORT;
 504                                 break;
 505                         case DCBX_APP_SF_IEEE_TCP_UDP_PORT:
 506                                 entry->sf_ieee = QED_DCBX_SF_IEEE_TCP_UDP_PORT;
 507                                 break;
 508                         }
 509                 } else {
 510                         entry->ethtype = !(QED_MFW_GET_FIELD(p_tbl[i].entry,
 511                                                              DCBX_APP_SF));
 512                 }
 513
 514                 pri_map = QED_MFW_GET_FIELD(p_tbl[i].entry, DCBX_APP_PRI_MAP);
 515                 entry->prio = ffs(pri_map) - 1;
 516                 entry->proto_id = QED_MFW_GET_FIELD(p_tbl[i].entry,
 517                                                     DCBX_APP_PROTOCOL_ID);
 518                 qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
 519                                                entry->proto_id,
 520                                                &entry->proto_type, ieee);
 521         }
 522
 523         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 524                    "APP params: willing %d, valid %d error = %d\n",
 525                    p_params->app_willing, p_params->app_valid,
 526                    p_params->app_error);
 527 }
 528
 529 static void
 530 qed_dcbx_get_pfc_data(struct qed_hwfn *p_hwfn,
 531                       u32 pfc, struct qed_dcbx_params *p_params)
 532 {
 533         u8 pfc_map;
 534
 535         p_params->pfc.willing = QED_MFW_GET_FIELD(pfc, DCBX_PFC_WILLING);
 536         p_params->pfc.max_tc = QED_MFW_GET_FIELD(pfc, DCBX_PFC_CAPS);
 537         p_params->pfc.enabled = QED_MFW_GET_FIELD(pfc, DCBX_PFC_ENABLED);
 538         pfc_map = QED_MFW_GET_FIELD(pfc, DCBX_PFC_PRI_EN_BITMAP);
 539         p_params->pfc.prio[0] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_0);
 540         p_params->pfc.prio[1] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_1);
 541         p_params->pfc.prio[2] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_2);
 542         p_params->pfc.prio[3] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_3);
 543         p_params->pfc.prio[4] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_4);
 544         p_params->pfc.prio[5] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_5);
 545         p_params->pfc.prio[6] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_6);
 546         p_params->pfc.prio[7] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_7);
 547
 548         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 549                    "PFC params: willing %d, pfc_bitmap %u max_tc = %u enabled = %d\n",
 550                    p_params->pfc.willing, pfc_map, p_params->pfc.max_tc,
 551                    p_params->pfc.enabled);
 552 }
 553
 554 static void
 555 qed_dcbx_get_ets_data(struct qed_hwfn *p_hwfn,
 556                       struct dcbx_ets_feature *p_ets,
 557                       struct qed_dcbx_params *p_params)
 558 {
 559         u32 bw_map[2], tsa_map[2], pri_map;
 560         int i;
 561
 562         p_params->ets_willing = QED_MFW_GET_FIELD(p_ets->flags,
 563                                                   DCBX_ETS_WILLING);
 564         p_params->ets_enabled = QED_MFW_GET_FIELD(p_ets->flags,
 565                                                   DCBX_ETS_ENABLED);
 566         p_params->ets_cbs = QED_MFW_GET_FIELD(p_ets->flags, DCBX_ETS_CBS);
 567         p_params->max_ets_tc = QED_MFW_GET_FIELD(p_ets->flags,
 568                                                  DCBX_ETS_MAX_TCS);
 569         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 570                    "ETS params: willing %d, enabled = %d ets_cbs %d pri_tc_tbl_0 %x max_ets_tc %d\n",
 571                    p_params->ets_willing, p_params->ets_enabled,
 572                    p_params->ets_cbs, p_ets->pri_tc_tbl[0],
 573                    p_params->max_ets_tc);
 574
 575         if (p_params->ets_enabled && !p_params->max_ets_tc) {
 576                 p_params->max_ets_tc = QED_MAX_PFC_PRIORITIES;
 577                 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 578                            "ETS params: max_ets_tc is forced to %d\n",
 579                 p_params->max_ets_tc);
 580         }
 581
 582         /* 8 bit tsa and bw data corresponding to each of the 8 TC's are
 583          * encoded in a type u32 array of size 2.
 584          */
 585         bw_map[0] = be32_to_cpu(p_ets->tc_bw_tbl[0]);
 586         bw_map[1] = be32_to_cpu(p_ets->tc_bw_tbl[1]);
 587         tsa_map[0] = be32_to_cpu(p_ets->tc_tsa_tbl[0]);
 588         tsa_map[1] = be32_to_cpu(p_ets->tc_tsa_tbl[1]);
 589         pri_map = p_ets->pri_tc_tbl[0];
 590         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
 591                 p_params->ets_tc_bw_tbl[i] = ((u8 *)bw_map)[i];
 592                 p_params->ets_tc_tsa_tbl[i] = ((u8 *)tsa_map)[i];
 593                 p_params->ets_pri_tc_tbl[i] = QED_DCBX_PRIO2TC(pri_map, i);
 594                 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 595                            "elem %d  bw_tbl %x tsa_tbl %x\n",
 596                            i, p_params->ets_tc_bw_tbl[i],
 597                            p_params->ets_tc_tsa_tbl[i]);
 598         }
 599 }
 600
 601 static void
 602 qed_dcbx_get_common_params(struct qed_hwfn *p_hwfn,
 603                            struct dcbx_app_priority_feature *p_app,
 604                            struct dcbx_app_priority_entry *p_tbl,
 605                            struct dcbx_ets_feature *p_ets,
 606                            u32 pfc, struct qed_dcbx_params *p_params, bool ieee)
 607 {
 608         qed_dcbx_get_app_data(p_hwfn, p_app, p_tbl, p_params, ieee);
 609         qed_dcbx_get_ets_data(p_hwfn, p_ets, p_params);
 610         qed_dcbx_get_pfc_data(p_hwfn, pfc, p_params);
 611 }
 612
 613 static void
 614 qed_dcbx_get_local_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *params)
 615 {
 616         struct dcbx_features *p_feat;
 617
 618         p_feat = &p_hwfn->p_dcbx_info->local_admin.features;
 619         qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
 620                                    p_feat->app.app_pri_tbl, &p_feat->ets,
 621                                    p_feat->pfc, &params->local.params, false);
 622         params->local.valid = true;
 623 }
 624
 625 static void
 626 qed_dcbx_get_remote_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *params)
 627 {
 628         struct dcbx_features *p_feat;
 629
 630         p_feat = &p_hwfn->p_dcbx_info->remote.features;
 631         qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
 632                                    p_feat->app.app_pri_tbl, &p_feat->ets,
 633                                    p_feat->pfc, &params->remote.params, false);
 634         params->remote.valid = true;
 635 }
 636
 637 static void
 638 qed_dcbx_get_operational_params(struct qed_hwfn *p_hwfn,
 639                                 struct qed_dcbx_get *params)
 640 {
 641         struct qed_dcbx_operational_params *p_operational;
 642         struct qed_dcbx_results *p_results;
 643         struct dcbx_features *p_feat;
 644         bool enabled, err;
 645         u32 flags;
 646         bool val;
 647
 648         flags = p_hwfn->p_dcbx_info->operational.flags;
 649
 650         /* If DCBx version is non zero, then negotiation
 651          * was successfuly performed
 652          */
 653         p_operational = &params->operational;
 654         enabled = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) !=
 655                      DCBX_CONFIG_VERSION_DISABLED);
 656         if (!enabled) {
 657                 p_operational->enabled = enabled;
 658                 p_operational->valid = false;
 659                 DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Dcbx is disabled\n");
 660                 return;
 661         }
 662
 663         p_feat = &p_hwfn->p_dcbx_info->operational.features;
 664         p_results = &p_hwfn->p_dcbx_info->results;
 665
 666         val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
 667                  DCBX_CONFIG_VERSION_IEEE);
 668         p_operational->ieee = val;
 669         val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
 670                  DCBX_CONFIG_VERSION_CEE);
 671         p_operational->cee = val;
 672
 673         val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
 674                  DCBX_CONFIG_VERSION_STATIC);
 675         p_operational->local = val;
 676
 677         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 678                    "Version support: ieee %d, cee %d, static %d\n",
 679                    p_operational->ieee, p_operational->cee,
 680                    p_operational->local);
 681
 682         qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
 683                                    p_feat->app.app_pri_tbl, &p_feat->ets,
 684                                    p_feat->pfc, &params->operational.params,
 685                                    p_operational->ieee);
 686         qed_dcbx_get_priority_info(p_hwfn, &p_operational->app_prio, p_results);
 687         err = QED_MFW_GET_FIELD(p_feat->app.flags, DCBX_APP_ERROR);
 688         p_operational->err = err;
 689         p_operational->enabled = enabled;
 690         p_operational->valid = true;
 691 }
 692
 693 static void
 694 qed_dcbx_get_local_lldp_params(struct qed_hwfn *p_hwfn,
 695                                struct qed_dcbx_get *params)
 696 {
 697         struct lldp_config_params_s *p_local;
 698
 699         p_local = &p_hwfn->p_dcbx_info->lldp_local[LLDP_NEAREST_BRIDGE];
 700
 701         memcpy(params->lldp_local.local_chassis_id, p_local->local_chassis_id,
 702                sizeof(p_local->local_chassis_id));
 703         memcpy(params->lldp_local.local_port_id, p_local->local_port_id,
 704                sizeof(p_local->local_port_id));
 705 }
 706
 707 static void
 708 qed_dcbx_get_remote_lldp_params(struct qed_hwfn *p_hwfn,
 709                                 struct qed_dcbx_get *params)
 710 {
 711         struct lldp_status_params_s *p_remote;
 712
 713         p_remote = &p_hwfn->p_dcbx_info->lldp_remote[LLDP_NEAREST_BRIDGE];
 714
 715         memcpy(params->lldp_remote.peer_chassis_id, p_remote->peer_chassis_id,
 716                sizeof(p_remote->peer_chassis_id));
 717         memcpy(params->lldp_remote.peer_port_id, p_remote->peer_port_id,
 718                sizeof(p_remote->peer_port_id));
 719 }
 720
 721 static int
 722 qed_dcbx_get_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *p_params,
 723                     enum qed_mib_read_type type)
 724 {
 725         switch (type) {
 726         case QED_DCBX_REMOTE_MIB:
 727                 qed_dcbx_get_remote_params(p_hwfn, p_params);
 728                 break;
 729         case QED_DCBX_LOCAL_MIB:
 730                 qed_dcbx_get_local_params(p_hwfn, p_params);
 731                 break;
 732         case QED_DCBX_OPERATIONAL_MIB:
 733                 qed_dcbx_get_operational_params(p_hwfn, p_params);
 734                 break;
 735         case QED_DCBX_REMOTE_LLDP_MIB:
 736                 qed_dcbx_get_remote_lldp_params(p_hwfn, p_params);
 737                 break;
 738         case QED_DCBX_LOCAL_LLDP_MIB:
 739                 qed_dcbx_get_local_lldp_params(p_hwfn, p_params);
 740                 break;
 741         default:
 742                 DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
 743                 return -EINVAL;
 744         }
 745
 746         return 0;
 747 }
 748
 749 static int
 750 qed_dcbx_read_local_lldp_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 751 {
 752         struct qed_dcbx_mib_meta_data data;
 753         int rc = 0;
 754
 755         memset(&data, 0, sizeof(data));
 756         data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
 757                                                            lldp_config_params);
 758         data.lldp_local = p_hwfn->p_dcbx_info->lldp_local;
 759         data.size = sizeof(struct lldp_config_params_s);
 760         qed_memcpy_from(p_hwfn, p_ptt, data.lldp_local, data.addr, data.size);
 761
 762         return rc;
 763 }
 764
 765 static int
 766 qed_dcbx_read_remote_lldp_mib(struct qed_hwfn *p_hwfn,
 767                               struct qed_ptt *p_ptt,
 768                               enum qed_mib_read_type type)
 769 {
 770         struct qed_dcbx_mib_meta_data data;
 771         int rc = 0;
 772
 773         memset(&data, 0, sizeof(data));
 774         data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
 775                                                            lldp_status_params);
 776         data.lldp_remote = p_hwfn->p_dcbx_info->lldp_remote;
 777         data.size = sizeof(struct lldp_status_params_s);
 778         rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 779
 780         return rc;
 781 }
 782
 783 static int
 784 qed_dcbx_read_operational_mib(struct qed_hwfn *p_hwfn,
 785                               struct qed_ptt *p_ptt,
 786                               enum qed_mib_read_type type)
 787 {
 788         struct qed_dcbx_mib_meta_data data;
 789         int rc = 0;
 790
 791         memset(&data, 0, sizeof(data));
 792         data.addr = p_hwfn->mcp_info->port_addr +
 793                     offsetof(struct public_port, operational_dcbx_mib);
 794         data.mib = &p_hwfn->p_dcbx_info->operational;
 795         data.size = sizeof(struct dcbx_mib);
 796         rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 797
 798         return rc;
 799 }
 800
 801 static int
 802 qed_dcbx_read_remote_mib(struct qed_hwfn *p_hwfn,
 803                          struct qed_ptt *p_ptt, enum qed_mib_read_type type)
 804 {
 805         struct qed_dcbx_mib_meta_data data;
 806         int rc = 0;
 807
 808         memset(&data, 0, sizeof(data));
 809         data.addr = p_hwfn->mcp_info->port_addr +
 810                     offsetof(struct public_port, remote_dcbx_mib);
 811         data.mib = &p_hwfn->p_dcbx_info->remote;
 812         data.size = sizeof(struct dcbx_mib);
 813         rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 814
 815         return rc;
 816 }
 817
 818 static int
 819 qed_dcbx_read_local_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 820 {
 821         struct qed_dcbx_mib_meta_data data;
 822         int rc = 0;
 823
 824         memset(&data, 0, sizeof(data));
 825         data.addr = p_hwfn->mcp_info->port_addr +
 826                     offsetof(struct public_port, local_admin_dcbx_mib);
 827         data.local_admin = &p_hwfn->p_dcbx_info->local_admin;
 828         data.size = sizeof(struct dcbx_local_params);
 829         qed_memcpy_from(p_hwfn, p_ptt, data.local_admin, data.addr, data.size);
 830
 831         return rc;
 832 }
 833
 834 static int qed_dcbx_read_mib(struct qed_hwfn *p_hwfn,
 835                              struct qed_ptt *p_ptt, enum qed_mib_read_type type)
 836 {
 837         int rc = -EINVAL;
 838
 839         switch (type) {
 840         case QED_DCBX_OPERATIONAL_MIB:
 841                 rc = qed_dcbx_read_operational_mib(p_hwfn, p_ptt, type);
 842                 break;
 843         case QED_DCBX_REMOTE_MIB:
 844                 rc = qed_dcbx_read_remote_mib(p_hwfn, p_ptt, type);
 845                 break;
 846         case QED_DCBX_LOCAL_MIB:
 847                 rc = qed_dcbx_read_local_mib(p_hwfn, p_ptt);
 848                 break;
 849         case QED_DCBX_REMOTE_LLDP_MIB:
 850                 rc = qed_dcbx_read_remote_lldp_mib(p_hwfn, p_ptt, type);
 851                 break;
 852         case QED_DCBX_LOCAL_LLDP_MIB:
 853                 rc = qed_dcbx_read_local_lldp_mib(p_hwfn, p_ptt);
 854                 break;
 855         default:
 856                 DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
 857         }
 858
 859         return rc;
 860 }
 861
 862 void qed_dcbx_aen(struct qed_hwfn *hwfn, u32 mib_type)
 863 {
 864         struct qed_common_cb_ops *op = hwfn->cdev->protocol_ops.common;
 865         void *cookie = hwfn->cdev->ops_cookie;
 866
 867         if (cookie && op->dcbx_aen)
 868                 op->dcbx_aen(cookie, &hwfn->p_dcbx_info->get, mib_type);
 869 }
 870
 871 /* Read updated MIB.
 872  * Reconfigure QM and invoke PF update ramrod command if operational MIB
 873  * change is detected.
 874  */
 875 int
 876 qed_dcbx_mib_update_event(struct qed_hwfn *p_hwfn,
 877                           struct qed_ptt *p_ptt, enum qed_mib_read_type type)
 878 {
 879         int rc = 0;
 880
 881         rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type);
 882         if (rc)
 883                 return rc;
 884
 885         if (type == QED_DCBX_OPERATIONAL_MIB) {
 886                 rc = qed_dcbx_process_mib_info(p_hwfn);
 887                 if (!rc) {
 888                         /* reconfigure tcs of QM queues according
 889                          * to negotiation results
 890                          */
 891                         qed_qm_reconf(p_hwfn, p_ptt);
 892
 893                         /* update storm FW with negotiation results */
 894                         qed_sp_pf_update(p_hwfn);
 895
 896                         /* for roce PFs, we may want to enable/disable DPM
 897                          * when DCBx change occurs
 898                          */
 899                         if (p_hwfn->hw_info.personality ==
 900                             QED_PCI_ETH_ROCE)
 901                                 qed_roce_dpm_dcbx(p_hwfn, p_ptt);
 902                 }
 903         }
 904
 905         qed_dcbx_get_params(p_hwfn, &p_hwfn->p_dcbx_info->get, type);
 906
 907         if (type == QED_DCBX_OPERATIONAL_MIB) {
 908                 struct qed_dcbx_results *p_data;
 909                 u16 val;
 910
 911                 /* Configure in NIG which protocols support EDPM and should
 912                  * honor PFC.
 913                  */
 914                 p_data = &p_hwfn->p_dcbx_info->results;
 915                 val = (0x1 << p_data->arr[DCBX_PROTOCOL_ROCE].tc) |
 916                       (0x1 << p_data->arr[DCBX_PROTOCOL_ROCE_V2].tc);
 917                 val <<= NIG_REG_TX_EDPM_CTRL_TX_EDPM_TC_EN_SHIFT;
 918                 val |= NIG_REG_TX_EDPM_CTRL_TX_EDPM_EN;
 919                 qed_wr(p_hwfn, p_ptt, NIG_REG_TX_EDPM_CTRL, val);
 920         }
 921
 922         qed_dcbx_aen(p_hwfn, type);
 923
 924         return rc;
 925 }
 926
 927 int qed_dcbx_info_alloc(struct qed_hwfn *p_hwfn)
 928 {
 929         p_hwfn->p_dcbx_info = kzalloc(sizeof(*p_hwfn->p_dcbx_info), GFP_KERNEL);
 930         if (!p_hwfn->p_dcbx_info)
 931                 return -ENOMEM;
 932
 933         return 0;
 934 }
 935
 936 void qed_dcbx_info_free(struct qed_hwfn *p_hwfn)
 937 {
 938         kfree(p_hwfn->p_dcbx_info);
 939         p_hwfn->p_dcbx_info = NULL;
 940 }
 941
 942 static void qed_dcbx_update_protocol_data(struct protocol_dcb_data *p_data,
 943                                           struct qed_dcbx_results *p_src,
 944                                           enum dcbx_protocol_type type)
 945 {
 946         p_data->dcb_enable_flag = p_src->arr[type].enable;
 947         p_data->dcb_priority = p_src->arr[type].priority;
 948         p_data->dcb_tc = p_src->arr[type].tc;
 949 }
 950
 951 /* Set pf update ramrod command params */
 952 void qed_dcbx_set_pf_update_params(struct qed_dcbx_results *p_src,
 953                                    struct pf_update_ramrod_data *p_dest)
 954 {
 955         struct protocol_dcb_data *p_dcb_data;
 956         bool update_flag = false;
 957
 958         p_dest->pf_id = p_src->pf_id;
 959
 960         update_flag = p_src->arr[DCBX_PROTOCOL_FCOE].update;
 961         p_dest->update_fcoe_dcb_data_mode = update_flag;
 962
 963         update_flag = p_src->arr[DCBX_PROTOCOL_ROCE].update;
 964         p_dest->update_roce_dcb_data_mode = update_flag;
 965
 966         update_flag = p_src->arr[DCBX_PROTOCOL_ROCE_V2].update;
 967         p_dest->update_rroce_dcb_data_mode = update_flag;
 968
 969         update_flag = p_src->arr[DCBX_PROTOCOL_ISCSI].update;
 970         p_dest->update_iscsi_dcb_data_mode = update_flag;
 971         update_flag = p_src->arr[DCBX_PROTOCOL_ETH].update;
 972         p_dest->update_eth_dcb_data_mode = update_flag;
 973
 974         p_dcb_data = &p_dest->fcoe_dcb_data;
 975         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_FCOE);
 976         p_dcb_data = &p_dest->roce_dcb_data;
 977         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ROCE);
 978         p_dcb_data = &p_dest->rroce_dcb_data;
 979         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ROCE_V2);
 980         p_dcb_data = &p_dest->iscsi_dcb_data;
 981         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ISCSI);
 982         p_dcb_data = &p_dest->eth_dcb_data;
 983         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ETH);
 984 }
 985
 986 #ifdef CONFIG_DCB
 987 static int qed_dcbx_query_params(struct qed_hwfn *p_hwfn,
 988                                  struct qed_dcbx_get *p_get,
 989                                  enum qed_mib_read_type type)
 990 {
 991         struct qed_ptt *p_ptt;
 992         int rc;
 993
 994         if (IS_VF(p_hwfn->cdev))
 995                 return -EINVAL;
 996
 997         p_ptt = qed_ptt_acquire(p_hwfn);
 998         if (!p_ptt)
 999                 return -EBUSY;
1000
1001         rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type);
1002         if (rc)
1003                 goto out;
1004
1005         rc = qed_dcbx_get_params(p_hwfn, p_get, type);
1006
1007 out:
1008         qed_ptt_release(p_hwfn, p_ptt);
1009         return rc;
1010 }
1011
1012 static void
1013 qed_dcbx_set_pfc_data(struct qed_hwfn *p_hwfn,
1014                       u32 *pfc, struct qed_dcbx_params *p_params)
1015 {
1016         u8 pfc_map = 0;
1017         int i;
1018
1019         *pfc &= ~DCBX_PFC_ERROR_MASK;
1020
1021         if (p_params->pfc.willing)
1022                 *pfc |= DCBX_PFC_WILLING_MASK;
1023         else
1024                 *pfc &= ~DCBX_PFC_WILLING_MASK;
1025
1026         if (p_params->pfc.enabled)
1027                 *pfc |= DCBX_PFC_ENABLED_MASK;
1028         else
1029                 *pfc &= ~DCBX_PFC_ENABLED_MASK;
1030
1031         *pfc &= ~DCBX_PFC_CAPS_MASK;
1032         *pfc |= (u32)p_params->pfc.max_tc << DCBX_PFC_CAPS_SHIFT;
1033
1034         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
1035                 if (p_params->pfc.prio[i])
1036                         pfc_map |= BIT(i);
1037
1038         *pfc &= ~DCBX_PFC_PRI_EN_BITMAP_MASK;
1039         *pfc |= (pfc_map << DCBX_PFC_PRI_EN_BITMAP_SHIFT);
1040
1041         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "pfc = 0x%x\n", *pfc);
1042 }
1043
1044 static void
1045 qed_dcbx_set_ets_data(struct qed_hwfn *p_hwfn,
1046                       struct dcbx_ets_feature *p_ets,
1047                       struct qed_dcbx_params *p_params)
1048 {
1049         u8 *bw_map, *tsa_map;
1050         u32 val;
1051         int i;
1052
1053         if (p_params->ets_willing)
1054                 p_ets->flags |= DCBX_ETS_WILLING_MASK;
1055         else
1056                 p_ets->flags &= ~DCBX_ETS_WILLING_MASK;
1057
1058         if (p_params->ets_cbs)
1059                 p_ets->flags |= DCBX_ETS_CBS_MASK;
1060         else
1061                 p_ets->flags &= ~DCBX_ETS_CBS_MASK;
1062
1063         if (p_params->ets_enabled)
1064                 p_ets->flags |= DCBX_ETS_ENABLED_MASK;
1065         else
1066                 p_ets->flags &= ~DCBX_ETS_ENABLED_MASK;
1067
1068         p_ets->flags &= ~DCBX_ETS_MAX_TCS_MASK;
1069         p_ets->flags |= (u32)p_params->max_ets_tc << DCBX_ETS_MAX_TCS_SHIFT;
1070
1071         bw_map = (u8 *)&p_ets->tc_bw_tbl[0];
1072         tsa_map = (u8 *)&p_ets->tc_tsa_tbl[0];
1073         p_ets->pri_tc_tbl[0] = 0;
1074         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
1075                 bw_map[i] = p_params->ets_tc_bw_tbl[i];
1076                 tsa_map[i] = p_params->ets_tc_tsa_tbl[i];
1077                 /* Copy the priority value to the corresponding 4 bits in the
1078                  * traffic class table.
1079                  */
1080                 val = (((u32)p_params->ets_pri_tc_tbl[i]) << ((7 - i) * 4));
1081                 p_ets->pri_tc_tbl[0] |= val;
1082         }
1083         for (i = 0; i < 2; i++) {
1084                 p_ets->tc_bw_tbl[i] = cpu_to_be32(p_ets->tc_bw_tbl[i]);
1085                 p_ets->tc_tsa_tbl[i] = cpu_to_be32(p_ets->tc_tsa_tbl[i]);
1086         }
1087 }
1088
1089 static void
1090 qed_dcbx_set_app_data(struct qed_hwfn *p_hwfn,
1091                       struct dcbx_app_priority_feature *p_app,
1092                       struct qed_dcbx_params *p_params, bool ieee)
1093 {
1094         u32 *entry;
1095         int i;
1096
1097         if (p_params->app_willing)
1098                 p_app->flags |= DCBX_APP_WILLING_MASK;
1099         else
1100                 p_app->flags &= ~DCBX_APP_WILLING_MASK;
1101
1102         if (p_params->app_valid)
1103                 p_app->flags |= DCBX_APP_ENABLED_MASK;
1104         else
1105                 p_app->flags &= ~DCBX_APP_ENABLED_MASK;
1106
1107         p_app->flags &= ~DCBX_APP_NUM_ENTRIES_MASK;
1108         p_app->flags |= (u32)p_params->num_app_entries <<
1109             DCBX_APP_NUM_ENTRIES_SHIFT;
1110
1111         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
1112                 entry = &p_app->app_pri_tbl[i].entry;
1113                 *entry = 0;
1114                 if (ieee) {
1115                         *entry &= ~(DCBX_APP_SF_IEEE_MASK | DCBX_APP_SF_MASK);
1116                         switch (p_params->app_entry[i].sf_ieee) {
1117                         case QED_DCBX_SF_IEEE_ETHTYPE:
1118                                 *entry |= ((u32)DCBX_APP_SF_IEEE_ETHTYPE <<
1119                                            DCBX_APP_SF_IEEE_SHIFT);
1120                                 *entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
1121                                            DCBX_APP_SF_SHIFT);
1122                                 break;
1123                         case QED_DCBX_SF_IEEE_TCP_PORT:
1124                                 *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_PORT <<
1125                                            DCBX_APP_SF_IEEE_SHIFT);
1126                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1127                                            DCBX_APP_SF_SHIFT);
1128                                 break;
1129                         case QED_DCBX_SF_IEEE_UDP_PORT:
1130                                 *entry |= ((u32)DCBX_APP_SF_IEEE_UDP_PORT <<
1131                                            DCBX_APP_SF_IEEE_SHIFT);
1132                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1133                                            DCBX_APP_SF_SHIFT);
1134                                 break;
1135                         case QED_DCBX_SF_IEEE_TCP_UDP_PORT:
1136                                 *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_UDP_PORT <<
1137                                            DCBX_APP_SF_IEEE_SHIFT);
1138                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1139                                            DCBX_APP_SF_SHIFT);
1140                                 break;
1141                         }
1142                 } else {
1143                         *entry &= ~DCBX_APP_SF_MASK;
1144                         if (p_params->app_entry[i].ethtype)
1145                                 *entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
1146                                            DCBX_APP_SF_SHIFT);
1147                         else
1148                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1149                                            DCBX_APP_SF_SHIFT);
1150                 }
1151
1152                 *entry &= ~DCBX_APP_PROTOCOL_ID_MASK;
1153                 *entry |= ((u32)p_params->app_entry[i].proto_id <<
1154                            DCBX_APP_PROTOCOL_ID_SHIFT);
1155                 *entry &= ~DCBX_APP_PRI_MAP_MASK;
1156                 *entry |= ((u32)(p_params->app_entry[i].prio) <<
1157                            DCBX_APP_PRI_MAP_SHIFT);
1158         }
1159 }
1160
1161 static void
1162 qed_dcbx_set_local_params(struct qed_hwfn *p_hwfn,
1163                           struct dcbx_local_params *local_admin,
1164                           struct qed_dcbx_set *params)
1165 {
1166         bool ieee = false;
1167
1168         local_admin->flags = 0;
1169         memcpy(&local_admin->features,
1170                &p_hwfn->p_dcbx_info->operational.features,
1171                sizeof(local_admin->features));
1172
1173         if (params->enabled) {
1174                 local_admin->config = params->ver_num;
1175                 ieee = !!(params->ver_num & DCBX_CONFIG_VERSION_IEEE);
1176         } else {
1177                 local_admin->config = DCBX_CONFIG_VERSION_DISABLED;
1178         }
1179
1180         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Dcbx version = %d\n",
1181                    local_admin->config);
1182
1183         if (params->override_flags & QED_DCBX_OVERRIDE_PFC_CFG)
1184                 qed_dcbx_set_pfc_data(p_hwfn, &local_admin->features.pfc,
1185                                       &params->config.params);
1186
1187         if (params->override_flags & QED_DCBX_OVERRIDE_ETS_CFG)
1188                 qed_dcbx_set_ets_data(p_hwfn, &local_admin->features.ets,
1189                                       &params->config.params);
1190
1191         if (params->override_flags & QED_DCBX_OVERRIDE_APP_CFG)
1192                 qed_dcbx_set_app_data(p_hwfn, &local_admin->features.app,
1193                                       &params->config.params, ieee);
1194 }
1195
1196 int qed_dcbx_config_params(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
1197                            struct qed_dcbx_set *params, bool hw_commit)
1198 {
1199         struct dcbx_local_params local_admin;
1200         struct qed_dcbx_mib_meta_data data;
1201         u32 resp = 0, param = 0;
1202         int rc = 0;
1203
1204         if (!hw_commit) {
1205                 memcpy(&p_hwfn->p_dcbx_info->set, params,
1206                        sizeof(struct qed_dcbx_set));
1207                 return 0;
1208         }
1209
1210         /* clear set-parmas cache */
1211         memset(&p_hwfn->p_dcbx_info->set, 0, sizeof(p_hwfn->p_dcbx_info->set));
1212
1213         memset(&local_admin, 0, sizeof(local_admin));
1214         qed_dcbx_set_local_params(p_hwfn, &local_admin, params);
1215
1216         data.addr = p_hwfn->mcp_info->port_addr +
1217             offsetof(struct public_port, local_admin_dcbx_mib);
1218         data.local_admin = &local_admin;
1219         data.size = sizeof(struct dcbx_local_params);
1220         qed_memcpy_to(p_hwfn, p_ptt, data.addr, data.local_admin, data.size);
1221
1222         rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_SET_DCBX,
1223                          1 << DRV_MB_PARAM_LLDP_SEND_SHIFT, &resp, &param);
1224         if (rc)
1225                 DP_NOTICE(p_hwfn, "Failed to send DCBX update request\n");
1226
1227         return rc;
1228 }
1229
1230 int qed_dcbx_get_config_params(struct qed_hwfn *p_hwfn,
1231                                struct qed_dcbx_set *params)
1232 {
1233         struct qed_dcbx_get *dcbx_info;
1234         int rc;
1235
1236         if (p_hwfn->p_dcbx_info->set.config.valid) {
1237                 memcpy(params, &p_hwfn->p_dcbx_info->set,
1238                        sizeof(struct qed_dcbx_set));
1239                 return 0;
1240         }
1241
1242         dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_KERNEL);
1243         if (!dcbx_info)
1244                 return -ENOMEM;
1245
1246         rc = qed_dcbx_query_params(p_hwfn, dcbx_info, QED_DCBX_OPERATIONAL_MIB);
1247         if (rc) {
1248                 kfree(dcbx_info);
1249                 return rc;
1250         }
1251
1252         p_hwfn->p_dcbx_info->set.override_flags = 0;
1253         p_hwfn->p_dcbx_info->set.ver_num = DCBX_CONFIG_VERSION_DISABLED;
1254         if (dcbx_info->operational.cee)
1255                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1256         if (dcbx_info->operational.ieee)
1257                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1258         if (dcbx_info->operational.local)
1259                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_STATIC;
1260
1261         p_hwfn->p_dcbx_info->set.enabled = dcbx_info->operational.enabled;
1262         BUILD_BUG_ON(sizeof(dcbx_info->operational.params) !=
1263                      sizeof(p_hwfn->p_dcbx_info->set.config.params));
1264         memcpy(&p_hwfn->p_dcbx_info->set.config.params,
1265                &dcbx_info->operational.params,
1266                sizeof(p_hwfn->p_dcbx_info->set.config.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_VER_CEE | DCB_CAP_DCBX_VER_IEEE |
1477                         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.ieee)
1546                 mode |= DCB_CAP_DCBX_VER_IEEE;
1547         if (dcbx_info->operational.cee)
1548                 mode |= DCB_CAP_DCBX_VER_CEE;
1549         if (dcbx_info->operational.local)
1550                 mode |= DCB_CAP_DCBX_STATIC;
1551
1552         DP_VERBOSE(hwfn, QED_MSG_DCB, "dcb mode = %d\n", mode);
1553         kfree(dcbx_info);
1554
1555         return mode;
1556 }
1557
1558 static void qed_dcbnl_setpgtccfgtx(struct qed_dev *cdev,
1559                                    int tc,
1560                                    u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
1561 {
1562         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1563         struct qed_dcbx_set dcbx_set;
1564         struct qed_ptt *ptt;
1565         int rc;
1566
1567         DP_VERBOSE(hwfn, QED_MSG_DCB,
1568                    "tc = %d pri_type = %d pgid = %d bw_pct = %d up_map = %d\n",
1569                    tc, pri_type, pgid, bw_pct, up_map);
1570
1571         if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
1572                 DP_INFO(hwfn, "Invalid tc %d\n", tc);
1573                 return;
1574         }
1575
1576         memset(&dcbx_set, 0, sizeof(dcbx_set));
1577         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1578         if (rc)
1579                 return;
1580
1581         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1582         dcbx_set.config.params.ets_pri_tc_tbl[tc] = pgid;
1583
1584         ptt = qed_ptt_acquire(hwfn);
1585         if (!ptt)
1586                 return;
1587
1588         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1589
1590         qed_ptt_release(hwfn, ptt);
1591 }
1592
1593 static void qed_dcbnl_setpgtccfgrx(struct qed_dev *cdev, int prio,
1594                                    u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
1595 {
1596         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1597 }
1598
1599 static void qed_dcbnl_setpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 bw_pct)
1600 {
1601         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1602         struct qed_dcbx_set dcbx_set;
1603         struct qed_ptt *ptt;
1604         int rc;
1605
1606         DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d bw_pct = %d\n", pgid, bw_pct);
1607         if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
1608                 DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
1609                 return;
1610         }
1611
1612         memset(&dcbx_set, 0, sizeof(dcbx_set));
1613         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1614         if (rc)
1615                 return;
1616
1617         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1618         dcbx_set.config.params.ets_tc_bw_tbl[pgid] = bw_pct;
1619
1620         ptt = qed_ptt_acquire(hwfn);
1621         if (!ptt)
1622                 return;
1623
1624         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1625
1626         qed_ptt_release(hwfn, ptt);
1627 }
1628
1629 static void qed_dcbnl_setpgbwgcfgrx(struct qed_dev *cdev, int pgid, u8 bw_pct)
1630 {
1631         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1632 }
1633
1634 static u8 qed_dcbnl_setall(struct qed_dev *cdev)
1635 {
1636         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1637         struct qed_dcbx_set dcbx_set;
1638         struct qed_ptt *ptt;
1639         int rc;
1640
1641         memset(&dcbx_set, 0, sizeof(dcbx_set));
1642         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1643         if (rc)
1644                 return 1;
1645
1646         ptt = qed_ptt_acquire(hwfn);
1647         if (!ptt)
1648                 return 1;
1649
1650         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 1);
1651
1652         qed_ptt_release(hwfn, ptt);
1653
1654         return rc;
1655 }
1656
1657 static int qed_dcbnl_setnumtcs(struct qed_dev *cdev, int tcid, u8 num)
1658 {
1659         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1660         struct qed_dcbx_set dcbx_set;
1661         struct qed_ptt *ptt;
1662         int rc;
1663
1664         DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d num = %d\n", tcid, num);
1665         memset(&dcbx_set, 0, sizeof(dcbx_set));
1666         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1667         if (rc)
1668                 return 1;
1669
1670         switch (tcid) {
1671         case DCB_NUMTCS_ATTR_PG:
1672                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1673                 dcbx_set.config.params.max_ets_tc = num;
1674                 break;
1675         case DCB_NUMTCS_ATTR_PFC:
1676                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1677                 dcbx_set.config.params.pfc.max_tc = num;
1678                 break;
1679         default:
1680                 DP_INFO(hwfn, "Invalid tcid %d\n", tcid);
1681                 return -EINVAL;
1682         }
1683
1684         ptt = qed_ptt_acquire(hwfn);
1685         if (!ptt)
1686                 return -EINVAL;
1687
1688         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1689
1690         qed_ptt_release(hwfn, ptt);
1691
1692         return 0;
1693 }
1694
1695 static void qed_dcbnl_setpfcstate(struct qed_dev *cdev, u8 state)
1696 {
1697         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1698         struct qed_dcbx_set dcbx_set;
1699         struct qed_ptt *ptt;
1700         int rc;
1701
1702         DP_VERBOSE(hwfn, QED_MSG_DCB, "new state = %d\n", state);
1703
1704         memset(&dcbx_set, 0, sizeof(dcbx_set));
1705         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1706         if (rc)
1707                 return;
1708
1709         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1710         dcbx_set.config.params.pfc.enabled = !!state;
1711
1712         ptt = qed_ptt_acquire(hwfn);
1713         if (!ptt)
1714                 return;
1715
1716         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1717
1718         qed_ptt_release(hwfn, ptt);
1719 }
1720
1721 static int qed_dcbnl_getapp(struct qed_dev *cdev, u8 idtype, u16 idval)
1722 {
1723         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1724         struct qed_dcbx_get *dcbx_info;
1725         struct qed_app_entry *entry;
1726         bool ethtype;
1727         u8 prio = 0;
1728         int i;
1729
1730         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1731         if (!dcbx_info)
1732                 return -EINVAL;
1733
1734         ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
1735         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
1736                 entry = &dcbx_info->operational.params.app_entry[i];
1737                 if ((entry->ethtype == ethtype) && (entry->proto_id == idval)) {
1738                         prio = entry->prio;
1739                         break;
1740                 }
1741         }
1742
1743         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
1744                 DP_ERR(cdev, "App entry (%d, %d) not found\n", idtype, idval);
1745                 kfree(dcbx_info);
1746                 return -EINVAL;
1747         }
1748
1749         kfree(dcbx_info);
1750
1751         return prio;
1752 }
1753
1754 static int qed_dcbnl_setapp(struct qed_dev *cdev,
1755                             u8 idtype, u16 idval, u8 pri_map)
1756 {
1757         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1758         struct qed_dcbx_set dcbx_set;
1759         struct qed_app_entry *entry;
1760         struct qed_ptt *ptt;
1761         bool ethtype;
1762         int rc, i;
1763
1764         memset(&dcbx_set, 0, sizeof(dcbx_set));
1765         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1766         if (rc)
1767                 return -EINVAL;
1768
1769         ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
1770         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
1771                 entry = &dcbx_set.config.params.app_entry[i];
1772                 if ((entry->ethtype == ethtype) && (entry->proto_id == idval))
1773                         break;
1774                 /* First empty slot */
1775                 if (!entry->proto_id) {
1776                         dcbx_set.config.params.num_app_entries++;
1777                         break;
1778                 }
1779         }
1780
1781         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
1782                 DP_ERR(cdev, "App table is full\n");
1783                 return -EBUSY;
1784         }
1785
1786         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
1787         dcbx_set.config.params.app_entry[i].ethtype = ethtype;
1788         dcbx_set.config.params.app_entry[i].proto_id = idval;
1789         dcbx_set.config.params.app_entry[i].prio = pri_map;
1790
1791         ptt = qed_ptt_acquire(hwfn);
1792         if (!ptt)
1793                 return -EBUSY;
1794
1795         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1796
1797         qed_ptt_release(hwfn, ptt);
1798
1799         return rc;
1800 }
1801
1802 static u8 qed_dcbnl_setdcbx(struct qed_dev *cdev, u8 mode)
1803 {
1804         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1805         struct qed_dcbx_set dcbx_set;
1806         struct qed_ptt *ptt;
1807         int rc;
1808
1809         DP_VERBOSE(hwfn, QED_MSG_DCB, "new mode = %x\n", mode);
1810
1811         if (!(mode & DCB_CAP_DCBX_VER_IEEE) &&
1812             !(mode & DCB_CAP_DCBX_VER_CEE) && !(mode & DCB_CAP_DCBX_STATIC)) {
1813                 DP_INFO(hwfn, "Allowed modes are cee, ieee or static\n");
1814                 return 1;
1815         }
1816
1817         memset(&dcbx_set, 0, sizeof(dcbx_set));
1818         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1819         if (rc)
1820                 return 1;
1821
1822         dcbx_set.ver_num = 0;
1823         if (mode & DCB_CAP_DCBX_VER_CEE) {
1824                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1825                 dcbx_set.enabled = true;
1826         }
1827
1828         if (mode & DCB_CAP_DCBX_VER_IEEE) {
1829                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1830                 dcbx_set.enabled = true;
1831         }
1832
1833         if (mode & DCB_CAP_DCBX_STATIC) {
1834                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_STATIC;
1835                 dcbx_set.enabled = true;
1836         }
1837
1838         ptt = qed_ptt_acquire(hwfn);
1839         if (!ptt)
1840                 return 1;
1841
1842         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1843
1844         qed_ptt_release(hwfn, ptt);
1845
1846         return rc;
1847 }
1848
1849 static u8 qed_dcbnl_getfeatcfg(struct qed_dev *cdev, int featid, u8 *flags)
1850 {
1851         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1852         struct qed_dcbx_get *dcbx_info;
1853
1854         DP_VERBOSE(hwfn, QED_MSG_DCB, "Feature id  = %d\n", featid);
1855         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1856         if (!dcbx_info)
1857                 return 1;
1858
1859         *flags = 0;
1860         switch (featid) {
1861         case DCB_FEATCFG_ATTR_PG:
1862                 if (dcbx_info->operational.params.ets_enabled)
1863                         *flags = DCB_FEATCFG_ENABLE;
1864                 else
1865                         *flags = DCB_FEATCFG_ERROR;
1866                 break;
1867         case DCB_FEATCFG_ATTR_PFC:
1868                 if (dcbx_info->operational.params.pfc.enabled)
1869                         *flags = DCB_FEATCFG_ENABLE;
1870                 else
1871                         *flags = DCB_FEATCFG_ERROR;
1872                 break;
1873         case DCB_FEATCFG_ATTR_APP:
1874                 if (dcbx_info->operational.params.app_valid)
1875                         *flags = DCB_FEATCFG_ENABLE;
1876                 else
1877                         *flags = DCB_FEATCFG_ERROR;
1878                 break;
1879         default:
1880                 DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
1881                 kfree(dcbx_info);
1882                 return 1;
1883         }
1884
1885         DP_VERBOSE(hwfn, QED_MSG_DCB, "flags = %d\n", *flags);
1886         kfree(dcbx_info);
1887
1888         return 0;
1889 }
1890
1891 static u8 qed_dcbnl_setfeatcfg(struct qed_dev *cdev, int featid, u8 flags)
1892 {
1893         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1894         struct qed_dcbx_set dcbx_set;
1895         bool enabled, willing;
1896         struct qed_ptt *ptt;
1897         int rc;
1898
1899         DP_VERBOSE(hwfn, QED_MSG_DCB, "featid = %d flags = %d\n",
1900                    featid, flags);
1901         memset(&dcbx_set, 0, sizeof(dcbx_set));
1902         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1903         if (rc)
1904                 return 1;
1905
1906         enabled = !!(flags & DCB_FEATCFG_ENABLE);
1907         willing = !!(flags & DCB_FEATCFG_WILLING);
1908         switch (featid) {
1909         case DCB_FEATCFG_ATTR_PG:
1910                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1911                 dcbx_set.config.params.ets_enabled = enabled;
1912                 dcbx_set.config.params.ets_willing = willing;
1913                 break;
1914         case DCB_FEATCFG_ATTR_PFC:
1915                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1916                 dcbx_set.config.params.pfc.enabled = enabled;
1917                 dcbx_set.config.params.pfc.willing = willing;
1918                 break;
1919         case DCB_FEATCFG_ATTR_APP:
1920                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
1921                 dcbx_set.config.params.app_willing = willing;
1922                 break;
1923         default:
1924                 DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
1925                 return 1;
1926         }
1927
1928         ptt = qed_ptt_acquire(hwfn);
1929         if (!ptt)
1930                 return 1;
1931
1932         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1933
1934         qed_ptt_release(hwfn, ptt);
1935
1936         return 0;
1937 }
1938
1939 static int qed_dcbnl_peer_getappinfo(struct qed_dev *cdev,
1940                                      struct dcb_peer_app_info *info,
1941                                      u16 *app_count)
1942 {
1943         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1944         struct qed_dcbx_get *dcbx_info;
1945
1946         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1947         if (!dcbx_info)
1948                 return -EINVAL;
1949
1950         info->willing = dcbx_info->remote.params.app_willing;
1951         info->error = dcbx_info->remote.params.app_error;
1952         *app_count = dcbx_info->remote.params.num_app_entries;
1953         kfree(dcbx_info);
1954
1955         return 0;
1956 }
1957
1958 static int qed_dcbnl_peer_getapptable(struct qed_dev *cdev,
1959                                       struct dcb_app *table)
1960 {
1961         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1962         struct qed_dcbx_get *dcbx_info;
1963         int i;
1964
1965         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1966         if (!dcbx_info)
1967                 return -EINVAL;
1968
1969         for (i = 0; i < dcbx_info->remote.params.num_app_entries; i++) {
1970                 if (dcbx_info->remote.params.app_entry[i].ethtype)
1971                         table[i].selector = DCB_APP_IDTYPE_ETHTYPE;
1972                 else
1973                         table[i].selector = DCB_APP_IDTYPE_PORTNUM;
1974                 table[i].priority = dcbx_info->remote.params.app_entry[i].prio;
1975                 table[i].protocol =
1976                     dcbx_info->remote.params.app_entry[i].proto_id;
1977         }
1978
1979         kfree(dcbx_info);
1980
1981         return 0;
1982 }
1983
1984 static int qed_dcbnl_cee_peer_getpfc(struct qed_dev *cdev, struct cee_pfc *pfc)
1985 {
1986         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1987         struct qed_dcbx_get *dcbx_info;
1988         int i;
1989
1990         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1991         if (!dcbx_info)
1992                 return -EINVAL;
1993
1994         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
1995                 if (dcbx_info->remote.params.pfc.prio[i])
1996                         pfc->pfc_en |= BIT(i);
1997
1998         pfc->tcs_supported = dcbx_info->remote.params.pfc.max_tc;
1999         DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d tcs_supported = %d\n",
2000                    pfc->pfc_en, pfc->tcs_supported);
2001         kfree(dcbx_info);
2002
2003         return 0;
2004 }
2005
2006 static int qed_dcbnl_cee_peer_getpg(struct qed_dev *cdev, struct cee_pg *pg)
2007 {
2008         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2009         struct qed_dcbx_get *dcbx_info;
2010         int i;
2011
2012         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
2013         if (!dcbx_info)
2014                 return -EINVAL;
2015
2016         pg->willing = dcbx_info->remote.params.ets_willing;
2017         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
2018                 pg->pg_bw[i] = dcbx_info->remote.params.ets_tc_bw_tbl[i];
2019                 pg->prio_pg[i] = dcbx_info->remote.params.ets_pri_tc_tbl[i];
2020         }
2021
2022         DP_VERBOSE(hwfn, QED_MSG_DCB, "willing = %d", pg->willing);
2023         kfree(dcbx_info);
2024
2025         return 0;
2026 }
2027
2028 static int qed_dcbnl_get_ieee_pfc(struct qed_dev *cdev,
2029                                   struct ieee_pfc *pfc, bool remote)
2030 {
2031         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2032         struct qed_dcbx_params *params;
2033         struct qed_dcbx_get *dcbx_info;
2034         int rc, i;
2035
2036         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2037         if (!dcbx_info)
2038                 return -EINVAL;
2039
2040         if (!dcbx_info->operational.ieee) {
2041                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2042                 kfree(dcbx_info);
2043                 return -EINVAL;
2044         }
2045
2046         if (remote) {
2047                 memset(dcbx_info, 0, sizeof(*dcbx_info));
2048                 rc = qed_dcbx_query_params(hwfn, dcbx_info,
2049                                            QED_DCBX_REMOTE_MIB);
2050                 if (rc) {
2051                         kfree(dcbx_info);
2052                         return -EINVAL;
2053                 }
2054
2055                 params = &dcbx_info->remote.params;
2056         } else {
2057                 params = &dcbx_info->operational.params;
2058         }
2059
2060         pfc->pfc_cap = params->pfc.max_tc;
2061         pfc->pfc_en = 0;
2062         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2063                 if (params->pfc.prio[i])
2064                         pfc->pfc_en |= BIT(i);
2065
2066         kfree(dcbx_info);
2067
2068         return 0;
2069 }
2070
2071 static int qed_dcbnl_ieee_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2072 {
2073         return qed_dcbnl_get_ieee_pfc(cdev, pfc, false);
2074 }
2075
2076 static int qed_dcbnl_ieee_setpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2077 {
2078         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2079         struct qed_dcbx_get *dcbx_info;
2080         struct qed_dcbx_set dcbx_set;
2081         struct qed_ptt *ptt;
2082         int rc, i;
2083
2084         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2085         if (!dcbx_info)
2086                 return -EINVAL;
2087
2088         if (!dcbx_info->operational.ieee) {
2089                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2090                 kfree(dcbx_info);
2091                 return -EINVAL;
2092         }
2093
2094         kfree(dcbx_info);
2095
2096         memset(&dcbx_set, 0, sizeof(dcbx_set));
2097         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2098         if (rc)
2099                 return -EINVAL;
2100
2101         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
2102         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2103                 dcbx_set.config.params.pfc.prio[i] = !!(pfc->pfc_en & BIT(i));
2104
2105         dcbx_set.config.params.pfc.max_tc = pfc->pfc_cap;
2106
2107         ptt = qed_ptt_acquire(hwfn);
2108         if (!ptt)
2109                 return -EINVAL;
2110
2111         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2112
2113         qed_ptt_release(hwfn, ptt);
2114
2115         return rc;
2116 }
2117
2118 static int qed_dcbnl_get_ieee_ets(struct qed_dev *cdev,
2119                                   struct ieee_ets *ets, bool remote)
2120 {
2121         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2122         struct qed_dcbx_get *dcbx_info;
2123         struct qed_dcbx_params *params;
2124         int rc;
2125
2126         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2127         if (!dcbx_info)
2128                 return -EINVAL;
2129
2130         if (!dcbx_info->operational.ieee) {
2131                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2132                 kfree(dcbx_info);
2133                 return -EINVAL;
2134         }
2135
2136         if (remote) {
2137                 memset(dcbx_info, 0, sizeof(*dcbx_info));
2138                 rc = qed_dcbx_query_params(hwfn, dcbx_info,
2139                                            QED_DCBX_REMOTE_MIB);
2140                 if (rc) {
2141                         kfree(dcbx_info);
2142                         return -EINVAL;
2143                 }
2144
2145                 params = &dcbx_info->remote.params;
2146         } else {
2147                 params = &dcbx_info->operational.params;
2148         }
2149
2150         ets->ets_cap = params->max_ets_tc;
2151         ets->willing = params->ets_willing;
2152         ets->cbs = params->ets_cbs;
2153         memcpy(ets->tc_tx_bw, params->ets_tc_bw_tbl, sizeof(ets->tc_tx_bw));
2154         memcpy(ets->tc_tsa, params->ets_tc_tsa_tbl, sizeof(ets->tc_tsa));
2155         memcpy(ets->prio_tc, params->ets_pri_tc_tbl, sizeof(ets->prio_tc));
2156         kfree(dcbx_info);
2157
2158         return 0;
2159 }
2160
2161 static int qed_dcbnl_ieee_getets(struct qed_dev *cdev, struct ieee_ets *ets)
2162 {
2163         return qed_dcbnl_get_ieee_ets(cdev, ets, false);
2164 }
2165
2166 static int qed_dcbnl_ieee_setets(struct qed_dev *cdev, struct ieee_ets *ets)
2167 {
2168         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2169         struct qed_dcbx_get *dcbx_info;
2170         struct qed_dcbx_set dcbx_set;
2171         struct qed_ptt *ptt;
2172         int rc;
2173
2174         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2175         if (!dcbx_info)
2176                 return -EINVAL;
2177
2178         if (!dcbx_info->operational.ieee) {
2179                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2180                 kfree(dcbx_info);
2181                 return -EINVAL;
2182         }
2183
2184         kfree(dcbx_info);
2185
2186         memset(&dcbx_set, 0, sizeof(dcbx_set));
2187         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2188         if (rc)
2189                 return -EINVAL;
2190
2191         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
2192         dcbx_set.config.params.max_ets_tc = ets->ets_cap;
2193         dcbx_set.config.params.ets_willing = ets->willing;
2194         dcbx_set.config.params.ets_cbs = ets->cbs;
2195         memcpy(dcbx_set.config.params.ets_tc_bw_tbl, ets->tc_tx_bw,
2196                sizeof(ets->tc_tx_bw));
2197         memcpy(dcbx_set.config.params.ets_tc_tsa_tbl, ets->tc_tsa,
2198                sizeof(ets->tc_tsa));
2199         memcpy(dcbx_set.config.params.ets_pri_tc_tbl, ets->prio_tc,
2200                sizeof(ets->prio_tc));
2201
2202         ptt = qed_ptt_acquire(hwfn);
2203         if (!ptt)
2204                 return -EINVAL;
2205
2206         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2207
2208         qed_ptt_release(hwfn, ptt);
2209
2210         return rc;
2211 }
2212
2213 static int
2214 qed_dcbnl_ieee_peer_getets(struct qed_dev *cdev, struct ieee_ets *ets)
2215 {
2216         return qed_dcbnl_get_ieee_ets(cdev, ets, true);
2217 }
2218
2219 static int
2220 qed_dcbnl_ieee_peer_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2221 {
2222         return qed_dcbnl_get_ieee_pfc(cdev, pfc, true);
2223 }
2224
2225 static int qed_get_sf_ieee_value(u8 selector, u8 *sf_ieee)
2226 {
2227         switch (selector) {
2228         case IEEE_8021QAZ_APP_SEL_ETHERTYPE:
2229                 *sf_ieee = QED_DCBX_SF_IEEE_ETHTYPE;
2230                 break;
2231         case IEEE_8021QAZ_APP_SEL_STREAM:
2232                 *sf_ieee = QED_DCBX_SF_IEEE_TCP_PORT;
2233                 break;
2234         case IEEE_8021QAZ_APP_SEL_DGRAM:
2235                 *sf_ieee = QED_DCBX_SF_IEEE_UDP_PORT;
2236                 break;
2237         case IEEE_8021QAZ_APP_SEL_ANY:
2238                 *sf_ieee = QED_DCBX_SF_IEEE_TCP_UDP_PORT;
2239                 break;
2240         default:
2241                 return -EINVAL;
2242         }
2243
2244         return 0;
2245 }
2246
2247 static int qed_dcbnl_ieee_getapp(struct qed_dev *cdev, struct dcb_app *app)
2248 {
2249         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2250         struct qed_dcbx_get *dcbx_info;
2251         struct qed_app_entry *entry;
2252         u8 prio = 0;
2253         u8 sf_ieee;
2254         int i;
2255
2256         DP_VERBOSE(hwfn, QED_MSG_DCB, "selector = %d protocol = %d\n",
2257                    app->selector, app->protocol);
2258
2259         if (qed_get_sf_ieee_value(app->selector, &sf_ieee)) {
2260                 DP_INFO(cdev, "Invalid selector field value %d\n",
2261                         app->selector);
2262                 return -EINVAL;
2263         }
2264
2265         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2266         if (!dcbx_info)
2267                 return -EINVAL;
2268
2269         if (!dcbx_info->operational.ieee) {
2270                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2271                 kfree(dcbx_info);
2272                 return -EINVAL;
2273         }
2274
2275         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
2276                 entry = &dcbx_info->operational.params.app_entry[i];
2277                 if ((entry->sf_ieee == sf_ieee) &&
2278                     (entry->proto_id == app->protocol)) {
2279                         prio = entry->prio;
2280                         break;
2281                 }
2282         }
2283
2284         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
2285                 DP_ERR(cdev, "App entry (%d, %d) not found\n", app->selector,
2286                        app->protocol);
2287                 kfree(dcbx_info);
2288                 return -EINVAL;
2289         }
2290
2291         app->priority = ffs(prio) - 1;
2292
2293         kfree(dcbx_info);
2294
2295         return 0;
2296 }
2297
2298 static int qed_dcbnl_ieee_setapp(struct qed_dev *cdev, struct dcb_app *app)
2299 {
2300         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2301         struct qed_dcbx_get *dcbx_info;
2302         struct qed_dcbx_set dcbx_set;
2303         struct qed_app_entry *entry;
2304         struct qed_ptt *ptt;
2305         u8 sf_ieee;
2306         int rc, i;
2307
2308         DP_VERBOSE(hwfn, QED_MSG_DCB, "selector = %d protocol = %d pri = %d\n",
2309                    app->selector, app->protocol, app->priority);
2310         if (app->priority < 0 || app->priority >= QED_MAX_PFC_PRIORITIES) {
2311                 DP_INFO(hwfn, "Invalid priority %d\n", app->priority);
2312                 return -EINVAL;
2313         }
2314
2315         if (qed_get_sf_ieee_value(app->selector, &sf_ieee)) {
2316                 DP_INFO(cdev, "Invalid selector field value %d\n",
2317                         app->selector);
2318                 return -EINVAL;
2319         }
2320
2321         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2322         if (!dcbx_info)
2323                 return -EINVAL;
2324
2325         if (!dcbx_info->operational.ieee) {
2326                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2327                 kfree(dcbx_info);
2328                 return -EINVAL;
2329         }
2330
2331         kfree(dcbx_info);
2332
2333         memset(&dcbx_set, 0, sizeof(dcbx_set));
2334         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2335         if (rc)
2336                 return -EINVAL;
2337
2338         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
2339                 entry = &dcbx_set.config.params.app_entry[i];
2340                 if ((entry->sf_ieee == sf_ieee) &&
2341                     (entry->proto_id == app->protocol))
2342                         break;
2343                 /* First empty slot */
2344                 if (!entry->proto_id) {
2345                         dcbx_set.config.params.num_app_entries++;
2346                         break;
2347                 }
2348         }
2349
2350         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
2351                 DP_ERR(cdev, "App table is full\n");
2352                 return -EBUSY;
2353         }
2354
2355         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
2356         dcbx_set.config.params.app_entry[i].sf_ieee = sf_ieee;
2357         dcbx_set.config.params.app_entry[i].proto_id = app->protocol;
2358         dcbx_set.config.params.app_entry[i].prio = BIT(app->priority);
2359
2360         ptt = qed_ptt_acquire(hwfn);
2361         if (!ptt)
2362                 return -EBUSY;
2363
2364         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2365
2366         qed_ptt_release(hwfn, ptt);
2367
2368         return rc;
2369 }
2370
2371 const struct qed_eth_dcbnl_ops qed_dcbnl_ops_pass = {
2372         .getstate = qed_dcbnl_getstate,
2373         .setstate = qed_dcbnl_setstate,
2374         .getpgtccfgtx = qed_dcbnl_getpgtccfgtx,
2375         .getpgbwgcfgtx = qed_dcbnl_getpgbwgcfgtx,
2376         .getpgtccfgrx = qed_dcbnl_getpgtccfgrx,
2377         .getpgbwgcfgrx = qed_dcbnl_getpgbwgcfgrx,
2378         .getpfccfg = qed_dcbnl_getpfccfg,
2379         .setpfccfg = qed_dcbnl_setpfccfg,
2380         .getcap = qed_dcbnl_getcap,
2381         .getnumtcs = qed_dcbnl_getnumtcs,
2382         .getpfcstate = qed_dcbnl_getpfcstate,
2383         .getdcbx = qed_dcbnl_getdcbx,
2384         .setpgtccfgtx = qed_dcbnl_setpgtccfgtx,
2385         .setpgtccfgrx = qed_dcbnl_setpgtccfgrx,
2386         .setpgbwgcfgtx = qed_dcbnl_setpgbwgcfgtx,
2387         .setpgbwgcfgrx = qed_dcbnl_setpgbwgcfgrx,
2388         .setall = qed_dcbnl_setall,
2389         .setnumtcs = qed_dcbnl_setnumtcs,
2390         .setpfcstate = qed_dcbnl_setpfcstate,
2391         .setapp = qed_dcbnl_setapp,
2392         .setdcbx = qed_dcbnl_setdcbx,
2393         .setfeatcfg = qed_dcbnl_setfeatcfg,
2394         .getfeatcfg = qed_dcbnl_getfeatcfg,
2395         .getapp = qed_dcbnl_getapp,
2396         .peer_getappinfo = qed_dcbnl_peer_getappinfo,
2397         .peer_getapptable = qed_dcbnl_peer_getapptable,
2398         .cee_peer_getpfc = qed_dcbnl_cee_peer_getpfc,
2399         .cee_peer_getpg = qed_dcbnl_cee_peer_getpg,
2400         .ieee_getpfc = qed_dcbnl_ieee_getpfc,
2401         .ieee_setpfc = qed_dcbnl_ieee_setpfc,
2402         .ieee_getets = qed_dcbnl_ieee_getets,
2403         .ieee_setets = qed_dcbnl_ieee_setets,
2404         .ieee_peer_getpfc = qed_dcbnl_ieee_peer_getpfc,
2405         .ieee_peer_getets = qed_dcbnl_ieee_peer_getets,
2406         .ieee_getapp = qed_dcbnl_ieee_getapp,
2407         .ieee_setapp = qed_dcbnl_ieee_setapp,
2408 };
2409
2410 #endif