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

   1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
   2 /* QLogic qed NIC Driver
   3  * Copyright (c) 2015-2017  QLogic Corporation
   4  * Copyright (c) 2019-2020 Marvell International Ltd.
   5  */
   6
   7 #include <linux/types.h>
   8 #include <asm/byteorder.h>
   9 #include <linux/bitops.h>
  10 #include <linux/dcbnl.h>
  11 #include <linux/errno.h>
  12 #include <linux/kernel.h>
  13 #include <linux/slab.h>
  14 #include <linux/string.h>
  15 #include "qed.h"
  16 #include "qed_cxt.h"
  17 #include "qed_dcbx.h"
  18 #include "qed_hsi.h"
  19 #include "qed_sp.h"
  20 #include "qed_sriov.h"
  21 #include "qed_rdma.h"
  22 #ifdef CONFIG_DCB
  23 #include <linux/qed/qed_eth_if.h>
  24 #endif
  25
  26 #define QED_DCBX_MAX_MIB_READ_TRY       (100)
  27 #define QED_ETH_TYPE_DEFAULT            (0)
  28 #define QED_ETH_TYPE_ROCE               (0x8915)
  29 #define QED_UDP_PORT_TYPE_ROCE_V2       (0x12B7)
  30 #define QED_ETH_TYPE_FCOE               (0x8906)
  31 #define QED_TCP_PORT_ISCSI              (0xCBC)
  32
  33 #define QED_DCBX_INVALID_PRIORITY       0xFF
  34
  35 /* Get Traffic Class from priority traffic class table, 4 bits represent
  36  * the traffic class corresponding to the priority.
  37  */
  38 #define QED_DCBX_PRIO2TC(prio_tc_tbl, prio) \
  39         ((u32)(prio_tc_tbl >> ((7 - prio) * 4)) & 0x7)
  40
  41 static const struct qed_dcbx_app_metadata qed_dcbx_app_update[] = {
  42         {DCBX_PROTOCOL_ISCSI, "ISCSI", QED_PCI_ISCSI},
  43         {DCBX_PROTOCOL_FCOE, "FCOE", QED_PCI_FCOE},
  44         {DCBX_PROTOCOL_ROCE, "ROCE", QED_PCI_ETH_ROCE},
  45         {DCBX_PROTOCOL_ROCE_V2, "ROCE_V2", QED_PCI_ETH_ROCE},
  46         {DCBX_PROTOCOL_ETH, "ETH", QED_PCI_ETH},
  47 };
  48
  49 static bool qed_dcbx_app_ethtype(u32 app_info_bitmap)
  50 {
  51         return !!(QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) ==
  52                   DCBX_APP_SF_ETHTYPE);
  53 }
  54
  55 static bool qed_dcbx_ieee_app_ethtype(u32 app_info_bitmap)
  56 {
  57         u8 mfw_val = QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE);
  58
  59         /* Old MFW */
  60         if (mfw_val == DCBX_APP_SF_IEEE_RESERVED)
  61                 return qed_dcbx_app_ethtype(app_info_bitmap);
  62
  63         return !!(mfw_val == DCBX_APP_SF_IEEE_ETHTYPE);
  64 }
  65
  66 static bool qed_dcbx_app_port(u32 app_info_bitmap)
  67 {
  68         return !!(QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) ==
  69                   DCBX_APP_SF_PORT);
  70 }
  71
  72 static bool qed_dcbx_ieee_app_port(u32 app_info_bitmap, u8 type)
  73 {
  74         u8 mfw_val = QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE);
  75
  76         /* Old MFW */
  77         if (mfw_val == DCBX_APP_SF_IEEE_RESERVED)
  78                 return qed_dcbx_app_port(app_info_bitmap);
  79
  80         return !!(mfw_val == type || mfw_val == DCBX_APP_SF_IEEE_TCP_UDP_PORT);
  81 }
  82
  83 static bool qed_dcbx_default_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
  84 {
  85         bool ethtype;
  86
  87         if (ieee)
  88                 ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
  89         else
  90                 ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
  91
  92         return !!(ethtype && (proto_id == QED_ETH_TYPE_DEFAULT));
  93 }
  94
  95 static bool qed_dcbx_iscsi_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
  96 {
  97         bool port;
  98
  99         if (ieee)
 100                 port = qed_dcbx_ieee_app_port(app_info_bitmap,
 101                                               DCBX_APP_SF_IEEE_TCP_PORT);
 102         else
 103                 port = qed_dcbx_app_port(app_info_bitmap);
 104
 105         return !!(port && (proto_id == QED_TCP_PORT_ISCSI));
 106 }
 107
 108 static bool qed_dcbx_fcoe_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
 109 {
 110         bool ethtype;
 111
 112         if (ieee)
 113                 ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
 114         else
 115                 ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
 116
 117         return !!(ethtype && (proto_id == QED_ETH_TYPE_FCOE));
 118 }
 119
 120 static bool qed_dcbx_roce_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
 121 {
 122         bool ethtype;
 123
 124         if (ieee)
 125                 ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
 126         else
 127                 ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
 128
 129         return !!(ethtype && (proto_id == QED_ETH_TYPE_ROCE));
 130 }
 131
 132 static bool qed_dcbx_roce_v2_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
 133 {
 134         bool port;
 135
 136         if (ieee)
 137                 port = qed_dcbx_ieee_app_port(app_info_bitmap,
 138                                               DCBX_APP_SF_IEEE_UDP_PORT);
 139         else
 140                 port = qed_dcbx_app_port(app_info_bitmap);
 141
 142         return !!(port && (proto_id == QED_UDP_PORT_TYPE_ROCE_V2));
 143 }
 144
 145 static void
 146 qed_dcbx_dp_protocol(struct qed_hwfn *p_hwfn, struct qed_dcbx_results *p_data)
 147 {
 148         enum dcbx_protocol_type id;
 149         int i;
 150
 151         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "DCBX negotiated: %d\n",
 152                    p_data->dcbx_enabled);
 153
 154         for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) {
 155                 id = qed_dcbx_app_update[i].id;
 156
 157                 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 158                            "%s info: update %d, enable %d, prio %d, tc %d, num_tc %d\n",
 159                            qed_dcbx_app_update[i].name, p_data->arr[id].update,
 160                            p_data->arr[id].enable, p_data->arr[id].priority,
 161                            p_data->arr[id].tc, p_hwfn->hw_info.num_active_tc);
 162         }
 163 }
 164
 165 static void
 166 qed_dcbx_set_params(struct qed_dcbx_results *p_data,
 167                     struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
 168                     bool app_tlv, bool enable, u8 prio, u8 tc,
 169                     enum dcbx_protocol_type type,
 170                     enum qed_pci_personality personality)
 171 {
 172         /* PF update ramrod data */
 173         p_data->arr[type].enable = enable;
 174         p_data->arr[type].priority = prio;
 175         p_data->arr[type].tc = tc;
 176         if (enable)
 177                 p_data->arr[type].update = UPDATE_DCB;
 178         else
 179                 p_data->arr[type].update = DONT_UPDATE_DCB_DSCP;
 180
 181         if (test_bit(QED_MF_DONT_ADD_VLAN0_TAG, &p_hwfn->cdev->mf_bits))
 182                 p_data->arr[type].dont_add_vlan0 = true;
 183
 184         /* QM reconf data */
 185         if (app_tlv && p_hwfn->hw_info.personality == personality)
 186                 qed_hw_info_set_offload_tc(&p_hwfn->hw_info, tc);
 187
 188         /* Configure dcbx vlan priority in doorbell block for roce EDPM */
 189         if (test_bit(QED_MF_UFP_SPECIFIC, &p_hwfn->cdev->mf_bits) &&
 190             type == DCBX_PROTOCOL_ROCE) {
 191                 qed_wr(p_hwfn, p_ptt, DORQ_REG_TAG1_OVRD_MODE, 1);
 192                 qed_wr(p_hwfn, p_ptt, DORQ_REG_PF_PCP_BB_K2, prio << 1);
 193         }
 194 }
 195
 196 /* Update app protocol data and hw_info fields with the TLV info */
 197 static void
 198 qed_dcbx_update_app_info(struct qed_dcbx_results *p_data,
 199                          struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
 200                          bool app_tlv, bool enable, u8 prio, u8 tc,
 201                          enum dcbx_protocol_type type)
 202 {
 203         enum qed_pci_personality personality;
 204         enum dcbx_protocol_type id;
 205         int i;
 206
 207         for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) {
 208                 id = qed_dcbx_app_update[i].id;
 209
 210                 if (type != id)
 211                         continue;
 212
 213                 personality = qed_dcbx_app_update[i].personality;
 214
 215                 qed_dcbx_set_params(p_data, p_hwfn, p_ptt, app_tlv, enable,
 216                                     prio, tc, type, personality);
 217         }
 218 }
 219
 220 static bool
 221 qed_dcbx_get_app_protocol_type(struct qed_hwfn *p_hwfn,
 222                                u32 app_prio_bitmap,
 223                                u16 id, enum dcbx_protocol_type *type, bool ieee)
 224 {
 225         if (qed_dcbx_fcoe_tlv(app_prio_bitmap, id, ieee)) {
 226                 *type = DCBX_PROTOCOL_FCOE;
 227         } else if (qed_dcbx_roce_tlv(app_prio_bitmap, id, ieee)) {
 228                 *type = DCBX_PROTOCOL_ROCE;
 229         } else if (qed_dcbx_iscsi_tlv(app_prio_bitmap, id, ieee)) {
 230                 *type = DCBX_PROTOCOL_ISCSI;
 231         } else if (qed_dcbx_default_tlv(app_prio_bitmap, id, ieee)) {
 232                 *type = DCBX_PROTOCOL_ETH;
 233         } else if (qed_dcbx_roce_v2_tlv(app_prio_bitmap, id, ieee)) {
 234                 *type = DCBX_PROTOCOL_ROCE_V2;
 235         } else {
 236                 *type = DCBX_MAX_PROTOCOL_TYPE;
 237                 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 238                            "No action required, App TLV entry = 0x%x\n",
 239                            app_prio_bitmap);
 240                 return false;
 241         }
 242
 243         return true;
 244 }
 245
 246 /* Parse app TLV's to update TC information in hw_info structure for
 247  * reconfiguring QM. Get protocol specific data for PF update ramrod command.
 248  */
 249 static int
 250 qed_dcbx_process_tlv(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
 251                      struct qed_dcbx_results *p_data,
 252                      struct dcbx_app_priority_entry *p_tbl,
 253                      u32 pri_tc_tbl, int count, u8 dcbx_version)
 254 {
 255         enum dcbx_protocol_type type;
 256         bool enable, ieee, eth_tlv;
 257         u8 tc, priority_map;
 258         u16 protocol_id;
 259         int priority;
 260         int i;
 261
 262         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Num APP entries = %d\n", count);
 263
 264         ieee = (dcbx_version == DCBX_CONFIG_VERSION_IEEE);
 265         eth_tlv = false;
 266         /* Parse APP TLV */
 267         for (i = 0; i < count; i++) {
 268                 protocol_id = QED_MFW_GET_FIELD(p_tbl[i].entry,
 269                                                 DCBX_APP_PROTOCOL_ID);
 270                 priority_map = QED_MFW_GET_FIELD(p_tbl[i].entry,
 271                                                  DCBX_APP_PRI_MAP);
 272                 priority = ffs(priority_map) - 1;
 273                 if (priority < 0) {
 274                         DP_ERR(p_hwfn, "Invalid priority\n");
 275                         return -EINVAL;
 276                 }
 277
 278                 tc = QED_DCBX_PRIO2TC(pri_tc_tbl, priority);
 279                 if (qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
 280                                                    protocol_id, &type, ieee)) {
 281                         /* ETH always have the enable bit reset, as it gets
 282                          * vlan information per packet. For other protocols,
 283                          * should be set according to the dcbx_enabled
 284                          * indication, but we only got here if there was an
 285                          * app tlv for the protocol, so dcbx must be enabled.
 286                          */
 287                         if (type == DCBX_PROTOCOL_ETH) {
 288                                 enable = false;
 289                                 eth_tlv = true;
 290                         } else {
 291                                 enable = true;
 292                         }
 293
 294                         qed_dcbx_update_app_info(p_data, p_hwfn, p_ptt, true,
 295                                                  enable, priority, tc, type);
 296                 }
 297         }
 298
 299         /* If Eth TLV is not detected, use UFP TC as default TC */
 300         if (test_bit(QED_MF_UFP_SPECIFIC, &p_hwfn->cdev->mf_bits) && !eth_tlv)
 301                 p_data->arr[DCBX_PROTOCOL_ETH].tc = p_hwfn->ufp_info.tc;
 302
 303         /* Update ramrod protocol data and hw_info fields
 304          * with default info when corresponding APP TLV's are not detected.
 305          * The enabled field has a different logic for ethernet as only for
 306          * ethernet dcb should disabled by default, as the information arrives
 307          * from the OS (unless an explicit app tlv was present).
 308          */
 309         tc = p_data->arr[DCBX_PROTOCOL_ETH].tc;
 310         priority = p_data->arr[DCBX_PROTOCOL_ETH].priority;
 311         for (type = 0; type < DCBX_MAX_PROTOCOL_TYPE; type++) {
 312                 if (p_data->arr[type].update)
 313                         continue;
 314
 315                 enable = (type == DCBX_PROTOCOL_ETH) ? false : !!dcbx_version;
 316                 qed_dcbx_update_app_info(p_data, p_hwfn, p_ptt, false, enable,
 317                                          priority, tc, type);
 318         }
 319
 320         return 0;
 321 }
 322
 323 /* Parse app TLV's to update TC information in hw_info structure for
 324  * reconfiguring QM. Get protocol specific data for PF update ramrod command.
 325  */
 326 static int
 327 qed_dcbx_process_mib_info(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 328 {
 329         struct dcbx_app_priority_feature *p_app;
 330         struct dcbx_app_priority_entry *p_tbl;
 331         struct qed_dcbx_results data = { 0 };
 332         struct dcbx_ets_feature *p_ets;
 333         struct qed_hw_info *p_info;
 334         u32 pri_tc_tbl, flags;
 335         u8 dcbx_version;
 336         int num_entries;
 337         int rc = 0;
 338
 339         flags = p_hwfn->p_dcbx_info->operational.flags;
 340         dcbx_version = QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION);
 341
 342         p_app = &p_hwfn->p_dcbx_info->operational.features.app;
 343         p_tbl = p_app->app_pri_tbl;
 344
 345         p_ets = &p_hwfn->p_dcbx_info->operational.features.ets;
 346         pri_tc_tbl = p_ets->pri_tc_tbl[0];
 347
 348         p_info = &p_hwfn->hw_info;
 349         num_entries = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_NUM_ENTRIES);
 350
 351         rc = qed_dcbx_process_tlv(p_hwfn, p_ptt, &data, p_tbl, pri_tc_tbl,
 352                                   num_entries, dcbx_version);
 353         if (rc)
 354                 return rc;
 355
 356         p_info->num_active_tc = QED_MFW_GET_FIELD(p_ets->flags,
 357                                                   DCBX_ETS_MAX_TCS);
 358         p_hwfn->qm_info.ooo_tc = QED_MFW_GET_FIELD(p_ets->flags, DCBX_OOO_TC);
 359         data.pf_id = p_hwfn->rel_pf_id;
 360         data.dcbx_enabled = !!dcbx_version;
 361
 362         qed_dcbx_dp_protocol(p_hwfn, &data);
 363
 364         memcpy(&p_hwfn->p_dcbx_info->results, &data,
 365                sizeof(struct qed_dcbx_results));
 366
 367         return 0;
 368 }
 369
 370 static int
 371 qed_dcbx_copy_mib(struct qed_hwfn *p_hwfn,
 372                   struct qed_ptt *p_ptt,
 373                   struct qed_dcbx_mib_meta_data *p_data,
 374                   enum qed_mib_read_type type)
 375 {
 376         u32 prefix_seq_num, suffix_seq_num;
 377         int read_count = 0;
 378         int rc = 0;
 379
 380         /* The data is considered to be valid only if both sequence numbers are
 381          * the same.
 382          */
 383         do {
 384                 if (type == QED_DCBX_REMOTE_LLDP_MIB) {
 385                         qed_memcpy_from(p_hwfn, p_ptt, p_data->lldp_remote,
 386                                         p_data->addr, p_data->size);
 387                         prefix_seq_num = p_data->lldp_remote->prefix_seq_num;
 388                         suffix_seq_num = p_data->lldp_remote->suffix_seq_num;
 389                 } else {
 390                         qed_memcpy_from(p_hwfn, p_ptt, p_data->mib,
 391                                         p_data->addr, p_data->size);
 392                         prefix_seq_num = p_data->mib->prefix_seq_num;
 393                         suffix_seq_num = p_data->mib->suffix_seq_num;
 394                 }
 395                 read_count++;
 396
 397                 DP_VERBOSE(p_hwfn,
 398                            QED_MSG_DCB,
 399                            "mib type = %d, try count = %d prefix seq num  = %d suffix seq num = %d\n",
 400                            type, read_count, prefix_seq_num, suffix_seq_num);
 401         } while ((prefix_seq_num != suffix_seq_num) &&
 402                  (read_count < QED_DCBX_MAX_MIB_READ_TRY));
 403
 404         if (read_count >= QED_DCBX_MAX_MIB_READ_TRY) {
 405                 DP_ERR(p_hwfn,
 406                        "MIB read err, mib type = %d, try count = %d prefix seq num = %d suffix seq num = %d\n",
 407                        type, read_count, prefix_seq_num, suffix_seq_num);
 408                 rc = -EIO;
 409         }
 410
 411         return rc;
 412 }
 413
 414 static void
 415 qed_dcbx_get_priority_info(struct qed_hwfn *p_hwfn,
 416                            struct qed_dcbx_app_prio *p_prio,
 417                            struct qed_dcbx_results *p_results)
 418 {
 419         u8 val;
 420
 421         p_prio->roce = QED_DCBX_INVALID_PRIORITY;
 422         p_prio->roce_v2 = QED_DCBX_INVALID_PRIORITY;
 423         p_prio->iscsi = QED_DCBX_INVALID_PRIORITY;
 424         p_prio->fcoe = QED_DCBX_INVALID_PRIORITY;
 425
 426         if (p_results->arr[DCBX_PROTOCOL_ROCE].update &&
 427             p_results->arr[DCBX_PROTOCOL_ROCE].enable)
 428                 p_prio->roce = p_results->arr[DCBX_PROTOCOL_ROCE].priority;
 429
 430         if (p_results->arr[DCBX_PROTOCOL_ROCE_V2].update &&
 431             p_results->arr[DCBX_PROTOCOL_ROCE_V2].enable) {
 432                 val = p_results->arr[DCBX_PROTOCOL_ROCE_V2].priority;
 433                 p_prio->roce_v2 = val;
 434         }
 435
 436         if (p_results->arr[DCBX_PROTOCOL_ISCSI].update &&
 437             p_results->arr[DCBX_PROTOCOL_ISCSI].enable)
 438                 p_prio->iscsi = p_results->arr[DCBX_PROTOCOL_ISCSI].priority;
 439
 440         if (p_results->arr[DCBX_PROTOCOL_FCOE].update &&
 441             p_results->arr[DCBX_PROTOCOL_FCOE].enable)
 442                 p_prio->fcoe = p_results->arr[DCBX_PROTOCOL_FCOE].priority;
 443
 444         if (p_results->arr[DCBX_PROTOCOL_ETH].update &&
 445             p_results->arr[DCBX_PROTOCOL_ETH].enable)
 446                 p_prio->eth = p_results->arr[DCBX_PROTOCOL_ETH].priority;
 447
 448         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 449                    "Priorities: iscsi %d, roce %d, roce v2 %d, fcoe %d, eth %d\n",
 450                    p_prio->iscsi, p_prio->roce, p_prio->roce_v2, p_prio->fcoe,
 451                    p_prio->eth);
 452 }
 453
 454 static void
 455 qed_dcbx_get_app_data(struct qed_hwfn *p_hwfn,
 456                       struct dcbx_app_priority_feature *p_app,
 457                       struct dcbx_app_priority_entry *p_tbl,
 458                       struct qed_dcbx_params *p_params, bool ieee)
 459 {
 460         struct qed_app_entry *entry;
 461         u8 pri_map;
 462         int i;
 463
 464         p_params->app_willing = QED_MFW_GET_FIELD(p_app->flags,
 465                                                   DCBX_APP_WILLING);
 466         p_params->app_valid = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_ENABLED);
 467         p_params->app_error = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_ERROR);
 468         p_params->num_app_entries = QED_MFW_GET_FIELD(p_app->flags,
 469                                                       DCBX_APP_NUM_ENTRIES);
 470         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
 471                 entry = &p_params->app_entry[i];
 472                 if (ieee) {
 473                         u8 sf_ieee;
 474                         u32 val;
 475
 476                         sf_ieee = QED_MFW_GET_FIELD(p_tbl[i].entry,
 477                                                     DCBX_APP_SF_IEEE);
 478                         switch (sf_ieee) {
 479                         case DCBX_APP_SF_IEEE_RESERVED:
 480                                 /* Old MFW */
 481                                 val = QED_MFW_GET_FIELD(p_tbl[i].entry,
 482                                                         DCBX_APP_SF);
 483                                 entry->sf_ieee = val ?
 484                                     QED_DCBX_SF_IEEE_TCP_UDP_PORT :
 485                                     QED_DCBX_SF_IEEE_ETHTYPE;
 486                                 break;
 487                         case DCBX_APP_SF_IEEE_ETHTYPE:
 488                                 entry->sf_ieee = QED_DCBX_SF_IEEE_ETHTYPE;
 489                                 break;
 490                         case DCBX_APP_SF_IEEE_TCP_PORT:
 491                                 entry->sf_ieee = QED_DCBX_SF_IEEE_TCP_PORT;
 492                                 break;
 493                         case DCBX_APP_SF_IEEE_UDP_PORT:
 494                                 entry->sf_ieee = QED_DCBX_SF_IEEE_UDP_PORT;
 495                                 break;
 496                         case DCBX_APP_SF_IEEE_TCP_UDP_PORT:
 497                                 entry->sf_ieee = QED_DCBX_SF_IEEE_TCP_UDP_PORT;
 498                                 break;
 499                         }
 500                 } else {
 501                         entry->ethtype = !(QED_MFW_GET_FIELD(p_tbl[i].entry,
 502                                                              DCBX_APP_SF));
 503                 }
 504
 505                 pri_map = QED_MFW_GET_FIELD(p_tbl[i].entry, DCBX_APP_PRI_MAP);
 506                 entry->prio = ffs(pri_map) - 1;
 507                 entry->proto_id = QED_MFW_GET_FIELD(p_tbl[i].entry,
 508                                                     DCBX_APP_PROTOCOL_ID);
 509                 qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
 510                                                entry->proto_id,
 511                                                &entry->proto_type, ieee);
 512         }
 513
 514         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 515                    "APP params: willing %d, valid %d error = %d\n",
 516                    p_params->app_willing, p_params->app_valid,
 517                    p_params->app_error);
 518 }
 519
 520 static void
 521 qed_dcbx_get_pfc_data(struct qed_hwfn *p_hwfn,
 522                       u32 pfc, struct qed_dcbx_params *p_params)
 523 {
 524         u8 pfc_map;
 525
 526         p_params->pfc.willing = QED_MFW_GET_FIELD(pfc, DCBX_PFC_WILLING);
 527         p_params->pfc.max_tc = QED_MFW_GET_FIELD(pfc, DCBX_PFC_CAPS);
 528         p_params->pfc.enabled = QED_MFW_GET_FIELD(pfc, DCBX_PFC_ENABLED);
 529         pfc_map = QED_MFW_GET_FIELD(pfc, DCBX_PFC_PRI_EN_BITMAP);
 530         p_params->pfc.prio[0] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_0);
 531         p_params->pfc.prio[1] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_1);
 532         p_params->pfc.prio[2] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_2);
 533         p_params->pfc.prio[3] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_3);
 534         p_params->pfc.prio[4] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_4);
 535         p_params->pfc.prio[5] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_5);
 536         p_params->pfc.prio[6] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_6);
 537         p_params->pfc.prio[7] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_7);
 538
 539         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 540                    "PFC params: willing %d, pfc_bitmap %u max_tc = %u enabled = %d\n",
 541                    p_params->pfc.willing, pfc_map, p_params->pfc.max_tc,
 542                    p_params->pfc.enabled);
 543 }
 544
 545 static void
 546 qed_dcbx_get_ets_data(struct qed_hwfn *p_hwfn,
 547                       struct dcbx_ets_feature *p_ets,
 548                       struct qed_dcbx_params *p_params)
 549 {
 550         __be32 bw_map[2], tsa_map[2];
 551         u32 pri_map;
 552         int i;
 553
 554         p_params->ets_willing = QED_MFW_GET_FIELD(p_ets->flags,
 555                                                   DCBX_ETS_WILLING);
 556         p_params->ets_enabled = QED_MFW_GET_FIELD(p_ets->flags,
 557                                                   DCBX_ETS_ENABLED);
 558         p_params->ets_cbs = QED_MFW_GET_FIELD(p_ets->flags, DCBX_ETS_CBS);
 559         p_params->max_ets_tc = QED_MFW_GET_FIELD(p_ets->flags,
 560                                                  DCBX_ETS_MAX_TCS);
 561         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 562                    "ETS params: willing %d, enabled = %d ets_cbs %d pri_tc_tbl_0 %x max_ets_tc %d\n",
 563                    p_params->ets_willing, p_params->ets_enabled,
 564                    p_params->ets_cbs, p_ets->pri_tc_tbl[0],
 565                    p_params->max_ets_tc);
 566
 567         if (p_params->ets_enabled && !p_params->max_ets_tc) {
 568                 p_params->max_ets_tc = QED_MAX_PFC_PRIORITIES;
 569                 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 570                            "ETS params: max_ets_tc is forced to %d\n",
 571                 p_params->max_ets_tc);
 572         }
 573
 574         /* 8 bit tsa and bw data corresponding to each of the 8 TC's are
 575          * encoded in a type u32 array of size 2.
 576          */
 577         cpu_to_be32_array(bw_map, p_ets->tc_bw_tbl, 2);
 578         cpu_to_be32_array(tsa_map, p_ets->tc_tsa_tbl, 2);
 579         pri_map = p_ets->pri_tc_tbl[0];
 580
 581         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
 582                 p_params->ets_tc_bw_tbl[i] = ((u8 *)bw_map)[i];
 583                 p_params->ets_tc_tsa_tbl[i] = ((u8 *)tsa_map)[i];
 584                 p_params->ets_pri_tc_tbl[i] = QED_DCBX_PRIO2TC(pri_map, i);
 585                 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 586                            "elem %d  bw_tbl %x tsa_tbl %x\n",
 587                            i, p_params->ets_tc_bw_tbl[i],
 588                            p_params->ets_tc_tsa_tbl[i]);
 589         }
 590 }
 591
 592 static void
 593 qed_dcbx_get_common_params(struct qed_hwfn *p_hwfn,
 594                            struct dcbx_app_priority_feature *p_app,
 595                            struct dcbx_app_priority_entry *p_tbl,
 596                            struct dcbx_ets_feature *p_ets,
 597                            u32 pfc, struct qed_dcbx_params *p_params, bool ieee)
 598 {
 599         qed_dcbx_get_app_data(p_hwfn, p_app, p_tbl, p_params, ieee);
 600         qed_dcbx_get_ets_data(p_hwfn, p_ets, p_params);
 601         qed_dcbx_get_pfc_data(p_hwfn, pfc, p_params);
 602 }
 603
 604 static void
 605 qed_dcbx_get_local_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *params)
 606 {
 607         struct dcbx_features *p_feat;
 608
 609         p_feat = &p_hwfn->p_dcbx_info->local_admin.features;
 610         qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
 611                                    p_feat->app.app_pri_tbl, &p_feat->ets,
 612                                    p_feat->pfc, &params->local.params, false);
 613         params->local.valid = true;
 614 }
 615
 616 static void
 617 qed_dcbx_get_remote_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *params)
 618 {
 619         struct dcbx_features *p_feat;
 620
 621         p_feat = &p_hwfn->p_dcbx_info->remote.features;
 622         qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
 623                                    p_feat->app.app_pri_tbl, &p_feat->ets,
 624                                    p_feat->pfc, &params->remote.params, false);
 625         params->remote.valid = true;
 626 }
 627
 628 static void
 629 qed_dcbx_get_operational_params(struct qed_hwfn *p_hwfn,
 630                                 struct qed_dcbx_get *params)
 631 {
 632         struct qed_dcbx_operational_params *p_operational;
 633         struct qed_dcbx_results *p_results;
 634         struct dcbx_features *p_feat;
 635         bool enabled, err;
 636         u32 flags;
 637         bool val;
 638
 639         flags = p_hwfn->p_dcbx_info->operational.flags;
 640
 641         /* If DCBx version is non zero, then negotiation
 642          * was successfuly performed
 643          */
 644         p_operational = &params->operational;
 645         enabled = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) !=
 646                      DCBX_CONFIG_VERSION_DISABLED);
 647         if (!enabled) {
 648                 p_operational->enabled = enabled;
 649                 p_operational->valid = false;
 650                 DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Dcbx is disabled\n");
 651                 return;
 652         }
 653
 654         p_feat = &p_hwfn->p_dcbx_info->operational.features;
 655         p_results = &p_hwfn->p_dcbx_info->results;
 656
 657         val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
 658                  DCBX_CONFIG_VERSION_IEEE);
 659         p_operational->ieee = val;
 660         val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
 661                  DCBX_CONFIG_VERSION_CEE);
 662         p_operational->cee = val;
 663
 664         val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
 665                  DCBX_CONFIG_VERSION_STATIC);
 666         p_operational->local = val;
 667
 668         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 669                    "Version support: ieee %d, cee %d, static %d\n",
 670                    p_operational->ieee, p_operational->cee,
 671                    p_operational->local);
 672
 673         qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
 674                                    p_feat->app.app_pri_tbl, &p_feat->ets,
 675                                    p_feat->pfc, &params->operational.params,
 676                                    p_operational->ieee);
 677         qed_dcbx_get_priority_info(p_hwfn, &p_operational->app_prio, p_results);
 678         err = QED_MFW_GET_FIELD(p_feat->app.flags, DCBX_APP_ERROR);
 679         p_operational->err = err;
 680         p_operational->enabled = enabled;
 681         p_operational->valid = true;
 682 }
 683
 684 static void
 685 qed_dcbx_get_local_lldp_params(struct qed_hwfn *p_hwfn,
 686                                struct qed_dcbx_get *params)
 687 {
 688         struct lldp_config_params_s *p_local;
 689
 690         p_local = &p_hwfn->p_dcbx_info->lldp_local[LLDP_NEAREST_BRIDGE];
 691
 692         memcpy(params->lldp_local.local_chassis_id, p_local->local_chassis_id,
 693                sizeof(p_local->local_chassis_id));
 694         memcpy(params->lldp_local.local_port_id, p_local->local_port_id,
 695                sizeof(p_local->local_port_id));
 696 }
 697
 698 static void
 699 qed_dcbx_get_remote_lldp_params(struct qed_hwfn *p_hwfn,
 700                                 struct qed_dcbx_get *params)
 701 {
 702         struct lldp_status_params_s *p_remote;
 703
 704         p_remote = &p_hwfn->p_dcbx_info->lldp_remote[LLDP_NEAREST_BRIDGE];
 705
 706         memcpy(params->lldp_remote.peer_chassis_id, p_remote->peer_chassis_id,
 707                sizeof(p_remote->peer_chassis_id));
 708         memcpy(params->lldp_remote.peer_port_id, p_remote->peer_port_id,
 709                sizeof(p_remote->peer_port_id));
 710 }
 711
 712 static int
 713 qed_dcbx_get_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *p_params,
 714                     enum qed_mib_read_type type)
 715 {
 716         switch (type) {
 717         case QED_DCBX_REMOTE_MIB:
 718                 qed_dcbx_get_remote_params(p_hwfn, p_params);
 719                 break;
 720         case QED_DCBX_LOCAL_MIB:
 721                 qed_dcbx_get_local_params(p_hwfn, p_params);
 722                 break;
 723         case QED_DCBX_OPERATIONAL_MIB:
 724                 qed_dcbx_get_operational_params(p_hwfn, p_params);
 725                 break;
 726         case QED_DCBX_REMOTE_LLDP_MIB:
 727                 qed_dcbx_get_remote_lldp_params(p_hwfn, p_params);
 728                 break;
 729         case QED_DCBX_LOCAL_LLDP_MIB:
 730                 qed_dcbx_get_local_lldp_params(p_hwfn, p_params);
 731                 break;
 732         default:
 733                 DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
 734                 return -EINVAL;
 735         }
 736
 737         return 0;
 738 }
 739
 740 static int
 741 qed_dcbx_read_local_lldp_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 742 {
 743         struct qed_dcbx_mib_meta_data data;
 744         int rc = 0;
 745
 746         memset(&data, 0, sizeof(data));
 747         data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
 748                                                            lldp_config_params);
 749         data.lldp_local = p_hwfn->p_dcbx_info->lldp_local;
 750         data.size = sizeof(struct lldp_config_params_s);
 751         qed_memcpy_from(p_hwfn, p_ptt, data.lldp_local, data.addr, data.size);
 752
 753         return rc;
 754 }
 755
 756 static int
 757 qed_dcbx_read_remote_lldp_mib(struct qed_hwfn *p_hwfn,
 758                               struct qed_ptt *p_ptt,
 759                               enum qed_mib_read_type type)
 760 {
 761         struct qed_dcbx_mib_meta_data data;
 762         int rc = 0;
 763
 764         memset(&data, 0, sizeof(data));
 765         data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
 766                                                            lldp_status_params);
 767         data.lldp_remote = p_hwfn->p_dcbx_info->lldp_remote;
 768         data.size = sizeof(struct lldp_status_params_s);
 769         rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 770
 771         return rc;
 772 }
 773
 774 static int
 775 qed_dcbx_read_operational_mib(struct qed_hwfn *p_hwfn,
 776                               struct qed_ptt *p_ptt,
 777                               enum qed_mib_read_type type)
 778 {
 779         struct qed_dcbx_mib_meta_data data;
 780         int rc = 0;
 781
 782         memset(&data, 0, sizeof(data));
 783         data.addr = p_hwfn->mcp_info->port_addr +
 784                     offsetof(struct public_port, operational_dcbx_mib);
 785         data.mib = &p_hwfn->p_dcbx_info->operational;
 786         data.size = sizeof(struct dcbx_mib);
 787         rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 788
 789         return rc;
 790 }
 791
 792 static int
 793 qed_dcbx_read_remote_mib(struct qed_hwfn *p_hwfn,
 794                          struct qed_ptt *p_ptt, enum qed_mib_read_type type)
 795 {
 796         struct qed_dcbx_mib_meta_data data;
 797         int rc = 0;
 798
 799         memset(&data, 0, sizeof(data));
 800         data.addr = p_hwfn->mcp_info->port_addr +
 801                     offsetof(struct public_port, remote_dcbx_mib);
 802         data.mib = &p_hwfn->p_dcbx_info->remote;
 803         data.size = sizeof(struct dcbx_mib);
 804         rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 805
 806         return rc;
 807 }
 808
 809 static int
 810 qed_dcbx_read_local_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 811 {
 812         struct qed_dcbx_mib_meta_data data;
 813         int rc = 0;
 814
 815         memset(&data, 0, sizeof(data));
 816         data.addr = p_hwfn->mcp_info->port_addr +
 817                     offsetof(struct public_port, local_admin_dcbx_mib);
 818         data.local_admin = &p_hwfn->p_dcbx_info->local_admin;
 819         data.size = sizeof(struct dcbx_local_params);
 820         qed_memcpy_from(p_hwfn, p_ptt, data.local_admin, data.addr, data.size);
 821
 822         return rc;
 823 }
 824
 825 static int qed_dcbx_read_mib(struct qed_hwfn *p_hwfn,
 826                              struct qed_ptt *p_ptt, enum qed_mib_read_type type)
 827 {
 828         int rc = -EINVAL;
 829
 830         switch (type) {
 831         case QED_DCBX_OPERATIONAL_MIB:
 832                 rc = qed_dcbx_read_operational_mib(p_hwfn, p_ptt, type);
 833                 break;
 834         case QED_DCBX_REMOTE_MIB:
 835                 rc = qed_dcbx_read_remote_mib(p_hwfn, p_ptt, type);
 836                 break;
 837         case QED_DCBX_LOCAL_MIB:
 838                 rc = qed_dcbx_read_local_mib(p_hwfn, p_ptt);
 839                 break;
 840         case QED_DCBX_REMOTE_LLDP_MIB:
 841                 rc = qed_dcbx_read_remote_lldp_mib(p_hwfn, p_ptt, type);
 842                 break;
 843         case QED_DCBX_LOCAL_LLDP_MIB:
 844                 rc = qed_dcbx_read_local_lldp_mib(p_hwfn, p_ptt);
 845                 break;
 846         default:
 847                 DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
 848         }
 849
 850         return rc;
 851 }
 852
 853 static void qed_dcbx_aen(struct qed_hwfn *hwfn, u32 mib_type)
 854 {
 855         struct qed_common_cb_ops *op = hwfn->cdev->protocol_ops.common;
 856         void *cookie = hwfn->cdev->ops_cookie;
 857
 858         if (cookie && op->dcbx_aen)
 859                 op->dcbx_aen(cookie, &hwfn->p_dcbx_info->get, mib_type);
 860 }
 861
 862 /* Read updated MIB.
 863  * Reconfigure QM and invoke PF update ramrod command if operational MIB
 864  * change is detected.
 865  */
 866 int
 867 qed_dcbx_mib_update_event(struct qed_hwfn *p_hwfn,
 868                           struct qed_ptt *p_ptt, enum qed_mib_read_type type)
 869 {
 870         int rc = 0;
 871
 872         rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type);
 873         if (rc)
 874                 return rc;
 875
 876         if (type == QED_DCBX_OPERATIONAL_MIB) {
 877                 rc = qed_dcbx_process_mib_info(p_hwfn, p_ptt);
 878                 if (!rc) {
 879                         /* reconfigure tcs of QM queues according
 880                          * to negotiation results
 881                          */
 882                         qed_qm_reconf(p_hwfn, p_ptt);
 883
 884                         /* update storm FW with negotiation results */
 885                         qed_sp_pf_update(p_hwfn);
 886
 887                         /* for roce PFs, we may want to enable/disable DPM
 888                          * when DCBx change occurs
 889                          */
 890                         if (p_hwfn->hw_info.personality ==
 891                             QED_PCI_ETH_ROCE)
 892                                 qed_roce_dpm_dcbx(p_hwfn, p_ptt);
 893                 }
 894         }
 895
 896         qed_dcbx_get_params(p_hwfn, &p_hwfn->p_dcbx_info->get, type);
 897
 898         if (type == QED_DCBX_OPERATIONAL_MIB) {
 899                 struct qed_dcbx_results *p_data;
 900                 u16 val;
 901
 902                 /* Configure in NIG which protocols support EDPM and should
 903                  * honor PFC.
 904                  */
 905                 p_data = &p_hwfn->p_dcbx_info->results;
 906                 val = (0x1 << p_data->arr[DCBX_PROTOCOL_ROCE].tc) |
 907                       (0x1 << p_data->arr[DCBX_PROTOCOL_ROCE_V2].tc);
 908                 val <<= NIG_REG_TX_EDPM_CTRL_TX_EDPM_TC_EN_SHIFT;
 909                 val |= NIG_REG_TX_EDPM_CTRL_TX_EDPM_EN;
 910                 qed_wr(p_hwfn, p_ptt, NIG_REG_TX_EDPM_CTRL, val);
 911         }
 912
 913         qed_dcbx_aen(p_hwfn, type);
 914
 915         return rc;
 916 }
 917
 918 int qed_dcbx_info_alloc(struct qed_hwfn *p_hwfn)
 919 {
 920         p_hwfn->p_dcbx_info = kzalloc(sizeof(*p_hwfn->p_dcbx_info), GFP_KERNEL);
 921         if (!p_hwfn->p_dcbx_info)
 922                 return -ENOMEM;
 923
 924         return 0;
 925 }
 926
 927 void qed_dcbx_info_free(struct qed_hwfn *p_hwfn)
 928 {
 929         kfree(p_hwfn->p_dcbx_info);
 930         p_hwfn->p_dcbx_info = NULL;
 931 }
 932
 933 static void qed_dcbx_update_protocol_data(struct protocol_dcb_data *p_data,
 934                                           struct qed_dcbx_results *p_src,
 935                                           enum dcbx_protocol_type type)
 936 {
 937         p_data->dcb_enable_flag = p_src->arr[type].enable;
 938         p_data->dcb_priority = p_src->arr[type].priority;
 939         p_data->dcb_tc = p_src->arr[type].tc;
 940         p_data->dcb_dont_add_vlan0 = p_src->arr[type].dont_add_vlan0;
 941 }
 942
 943 /* Set pf update ramrod command params */
 944 void qed_dcbx_set_pf_update_params(struct qed_dcbx_results *p_src,
 945                                    struct pf_update_ramrod_data *p_dest)
 946 {
 947         struct protocol_dcb_data *p_dcb_data;
 948         u8 update_flag;
 949
 950         update_flag = p_src->arr[DCBX_PROTOCOL_FCOE].update;
 951         p_dest->update_fcoe_dcb_data_mode = update_flag;
 952
 953         update_flag = p_src->arr[DCBX_PROTOCOL_ROCE].update;
 954         p_dest->update_roce_dcb_data_mode = update_flag;
 955
 956         update_flag = p_src->arr[DCBX_PROTOCOL_ROCE_V2].update;
 957         p_dest->update_rroce_dcb_data_mode = update_flag;
 958
 959         update_flag = p_src->arr[DCBX_PROTOCOL_ISCSI].update;
 960         p_dest->update_iscsi_dcb_data_mode = update_flag;
 961         update_flag = p_src->arr[DCBX_PROTOCOL_ETH].update;
 962         p_dest->update_eth_dcb_data_mode = update_flag;
 963
 964         p_dcb_data = &p_dest->fcoe_dcb_data;
 965         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_FCOE);
 966         p_dcb_data = &p_dest->roce_dcb_data;
 967         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ROCE);
 968         p_dcb_data = &p_dest->rroce_dcb_data;
 969         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ROCE_V2);
 970         p_dcb_data = &p_dest->iscsi_dcb_data;
 971         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ISCSI);
 972         p_dcb_data = &p_dest->eth_dcb_data;
 973         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ETH);
 974 }
 975
 976 u8 qed_dcbx_get_priority_tc(struct qed_hwfn *p_hwfn, u8 pri)
 977 {
 978         struct qed_dcbx_get *dcbx_info = &p_hwfn->p_dcbx_info->get;
 979
 980         if (pri >= QED_MAX_PFC_PRIORITIES) {
 981                 DP_ERR(p_hwfn, "Invalid priority %d\n", pri);
 982                 return QED_DCBX_DEFAULT_TC;
 983         }
 984
 985         if (!dcbx_info->operational.valid) {
 986                 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 987                            "Dcbx parameters not available\n");
 988                 return QED_DCBX_DEFAULT_TC;
 989         }
 990
 991         return dcbx_info->operational.params.ets_pri_tc_tbl[pri];
 992 }
 993
 994 #ifdef CONFIG_DCB
 995 static int qed_dcbx_query_params(struct qed_hwfn *p_hwfn,
 996                                  struct qed_dcbx_get *p_get,
 997                                  enum qed_mib_read_type type)
 998 {
 999         struct qed_ptt *p_ptt;
1000         int rc;
1001
1002         if (IS_VF(p_hwfn->cdev))
1003                 return -EINVAL;
1004
1005         p_ptt = qed_ptt_acquire(p_hwfn);
1006         if (!p_ptt)
1007                 return -EBUSY;
1008
1009         rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type);
1010         if (rc)
1011                 goto out;
1012
1013         rc = qed_dcbx_get_params(p_hwfn, p_get, type);
1014
1015 out:
1016         qed_ptt_release(p_hwfn, p_ptt);
1017         return rc;
1018 }
1019
1020 static void
1021 qed_dcbx_set_pfc_data(struct qed_hwfn *p_hwfn,
1022                       u32 *pfc, struct qed_dcbx_params *p_params)
1023 {
1024         u8 pfc_map = 0;
1025         int i;
1026
1027         *pfc &= ~DCBX_PFC_ERROR_MASK;
1028
1029         if (p_params->pfc.willing)
1030                 *pfc |= DCBX_PFC_WILLING_MASK;
1031         else
1032                 *pfc &= ~DCBX_PFC_WILLING_MASK;
1033
1034         if (p_params->pfc.enabled)
1035                 *pfc |= DCBX_PFC_ENABLED_MASK;
1036         else
1037                 *pfc &= ~DCBX_PFC_ENABLED_MASK;
1038
1039         *pfc &= ~DCBX_PFC_CAPS_MASK;
1040         *pfc |= (u32)p_params->pfc.max_tc << DCBX_PFC_CAPS_SHIFT;
1041
1042         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
1043                 if (p_params->pfc.prio[i])
1044                         pfc_map |= BIT(i);
1045
1046         *pfc &= ~DCBX_PFC_PRI_EN_BITMAP_MASK;
1047         *pfc |= (pfc_map << DCBX_PFC_PRI_EN_BITMAP_SHIFT);
1048
1049         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "pfc = 0x%x\n", *pfc);
1050 }
1051
1052 static void
1053 qed_dcbx_set_ets_data(struct qed_hwfn *p_hwfn,
1054                       struct dcbx_ets_feature *p_ets,
1055                       struct qed_dcbx_params *p_params)
1056 {
1057         __be32 bw_map[2], tsa_map[2];
1058         u32 val;
1059         int i;
1060
1061         if (p_params->ets_willing)
1062                 p_ets->flags |= DCBX_ETS_WILLING_MASK;
1063         else
1064                 p_ets->flags &= ~DCBX_ETS_WILLING_MASK;
1065
1066         if (p_params->ets_cbs)
1067                 p_ets->flags |= DCBX_ETS_CBS_MASK;
1068         else
1069                 p_ets->flags &= ~DCBX_ETS_CBS_MASK;
1070
1071         if (p_params->ets_enabled)
1072                 p_ets->flags |= DCBX_ETS_ENABLED_MASK;
1073         else
1074                 p_ets->flags &= ~DCBX_ETS_ENABLED_MASK;
1075
1076         p_ets->flags &= ~DCBX_ETS_MAX_TCS_MASK;
1077         p_ets->flags |= (u32)p_params->max_ets_tc << DCBX_ETS_MAX_TCS_SHIFT;
1078
1079         p_ets->pri_tc_tbl[0] = 0;
1080
1081         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
1082                 ((u8 *)bw_map)[i] = p_params->ets_tc_bw_tbl[i];
1083                 ((u8 *)tsa_map)[i] = p_params->ets_tc_tsa_tbl[i];
1084
1085                 /* Copy the priority value to the corresponding 4 bits in the
1086                  * traffic class table.
1087                  */
1088                 val = (((u32)p_params->ets_pri_tc_tbl[i]) << ((7 - i) * 4));
1089                 p_ets->pri_tc_tbl[0] |= val;
1090         }
1091
1092         be32_to_cpu_array(p_ets->tc_bw_tbl, bw_map, 2);
1093         be32_to_cpu_array(p_ets->tc_tsa_tbl, tsa_map, 2);
1094 }
1095
1096 static void
1097 qed_dcbx_set_app_data(struct qed_hwfn *p_hwfn,
1098                       struct dcbx_app_priority_feature *p_app,
1099                       struct qed_dcbx_params *p_params, bool ieee)
1100 {
1101         u32 *entry;
1102         int i;
1103
1104         if (p_params->app_willing)
1105                 p_app->flags |= DCBX_APP_WILLING_MASK;
1106         else
1107                 p_app->flags &= ~DCBX_APP_WILLING_MASK;
1108
1109         if (p_params->app_valid)
1110                 p_app->flags |= DCBX_APP_ENABLED_MASK;
1111         else
1112                 p_app->flags &= ~DCBX_APP_ENABLED_MASK;
1113
1114         p_app->flags &= ~DCBX_APP_NUM_ENTRIES_MASK;
1115         p_app->flags |= (u32)p_params->num_app_entries <<
1116             DCBX_APP_NUM_ENTRIES_SHIFT;
1117
1118         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
1119                 entry = &p_app->app_pri_tbl[i].entry;
1120                 *entry = 0;
1121                 if (ieee) {
1122                         *entry &= ~(DCBX_APP_SF_IEEE_MASK | DCBX_APP_SF_MASK);
1123                         switch (p_params->app_entry[i].sf_ieee) {
1124                         case QED_DCBX_SF_IEEE_ETHTYPE:
1125                                 *entry |= ((u32)DCBX_APP_SF_IEEE_ETHTYPE <<
1126                                            DCBX_APP_SF_IEEE_SHIFT);
1127                                 *entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
1128                                            DCBX_APP_SF_SHIFT);
1129                                 break;
1130                         case QED_DCBX_SF_IEEE_TCP_PORT:
1131                                 *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_PORT <<
1132                                            DCBX_APP_SF_IEEE_SHIFT);
1133                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1134                                            DCBX_APP_SF_SHIFT);
1135                                 break;
1136                         case QED_DCBX_SF_IEEE_UDP_PORT:
1137                                 *entry |= ((u32)DCBX_APP_SF_IEEE_UDP_PORT <<
1138                                            DCBX_APP_SF_IEEE_SHIFT);
1139                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1140                                            DCBX_APP_SF_SHIFT);
1141                                 break;
1142                         case QED_DCBX_SF_IEEE_TCP_UDP_PORT:
1143                                 *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_UDP_PORT <<
1144                                            DCBX_APP_SF_IEEE_SHIFT);
1145                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1146                                            DCBX_APP_SF_SHIFT);
1147                                 break;
1148                         }
1149                 } else {
1150                         *entry &= ~DCBX_APP_SF_MASK;
1151                         if (p_params->app_entry[i].ethtype)
1152                                 *entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
1153                                            DCBX_APP_SF_SHIFT);
1154                         else
1155                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1156                                            DCBX_APP_SF_SHIFT);
1157                 }
1158
1159                 *entry &= ~DCBX_APP_PROTOCOL_ID_MASK;
1160                 *entry |= ((u32)p_params->app_entry[i].proto_id <<
1161                            DCBX_APP_PROTOCOL_ID_SHIFT);
1162                 *entry &= ~DCBX_APP_PRI_MAP_MASK;
1163                 *entry |= ((u32)(p_params->app_entry[i].prio) <<
1164                            DCBX_APP_PRI_MAP_SHIFT);
1165         }
1166 }
1167
1168 static void
1169 qed_dcbx_set_local_params(struct qed_hwfn *p_hwfn,
1170                           struct dcbx_local_params *local_admin,
1171                           struct qed_dcbx_set *params)
1172 {
1173         bool ieee = false;
1174
1175         local_admin->flags = 0;
1176         memcpy(&local_admin->features,
1177                &p_hwfn->p_dcbx_info->operational.features,
1178                sizeof(local_admin->features));
1179
1180         if (params->enabled) {
1181                 local_admin->config = params->ver_num;
1182                 ieee = !!(params->ver_num & DCBX_CONFIG_VERSION_IEEE);
1183         } else {
1184                 local_admin->config = DCBX_CONFIG_VERSION_DISABLED;
1185         }
1186
1187         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Dcbx version = %d\n",
1188                    local_admin->config);
1189
1190         if (params->override_flags & QED_DCBX_OVERRIDE_PFC_CFG)
1191                 qed_dcbx_set_pfc_data(p_hwfn, &local_admin->features.pfc,
1192                                       &params->config.params);
1193
1194         if (params->override_flags & QED_DCBX_OVERRIDE_ETS_CFG)
1195                 qed_dcbx_set_ets_data(p_hwfn, &local_admin->features.ets,
1196                                       &params->config.params);
1197
1198         if (params->override_flags & QED_DCBX_OVERRIDE_APP_CFG)
1199                 qed_dcbx_set_app_data(p_hwfn, &local_admin->features.app,
1200                                       &params->config.params, ieee);
1201 }
1202
1203 int qed_dcbx_config_params(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
1204                            struct qed_dcbx_set *params, bool hw_commit)
1205 {
1206         struct dcbx_local_params local_admin;
1207         struct qed_dcbx_mib_meta_data data;
1208         u32 resp = 0, param = 0;
1209         int rc = 0;
1210
1211         if (!hw_commit) {
1212                 memcpy(&p_hwfn->p_dcbx_info->set, params,
1213                        sizeof(struct qed_dcbx_set));
1214                 return 0;
1215         }
1216
1217         /* clear set-parmas cache */
1218         memset(&p_hwfn->p_dcbx_info->set, 0, sizeof(p_hwfn->p_dcbx_info->set));
1219
1220         memset(&local_admin, 0, sizeof(local_admin));
1221         qed_dcbx_set_local_params(p_hwfn, &local_admin, params);
1222
1223         data.addr = p_hwfn->mcp_info->port_addr +
1224             offsetof(struct public_port, local_admin_dcbx_mib);
1225         data.local_admin = &local_admin;
1226         data.size = sizeof(struct dcbx_local_params);
1227         qed_memcpy_to(p_hwfn, p_ptt, data.addr, data.local_admin, data.size);
1228
1229         rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_SET_DCBX,
1230                          1 << DRV_MB_PARAM_LLDP_SEND_SHIFT, &resp, &param);
1231         if (rc)
1232                 DP_NOTICE(p_hwfn, "Failed to send DCBX update request\n");
1233
1234         return rc;
1235 }
1236
1237 int qed_dcbx_get_config_params(struct qed_hwfn *p_hwfn,
1238                                struct qed_dcbx_set *params)
1239 {
1240         struct qed_dcbx_get *dcbx_info;
1241         int rc;
1242
1243         if (p_hwfn->p_dcbx_info->set.config.valid) {
1244                 memcpy(params, &p_hwfn->p_dcbx_info->set,
1245                        sizeof(struct qed_dcbx_set));
1246                 return 0;
1247         }
1248
1249         dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_KERNEL);
1250         if (!dcbx_info)
1251                 return -ENOMEM;
1252
1253         rc = qed_dcbx_query_params(p_hwfn, dcbx_info, QED_DCBX_OPERATIONAL_MIB);
1254         if (rc) {
1255                 kfree(dcbx_info);
1256                 return rc;
1257         }
1258
1259         p_hwfn->p_dcbx_info->set.override_flags = 0;
1260         p_hwfn->p_dcbx_info->set.ver_num = DCBX_CONFIG_VERSION_DISABLED;
1261         if (dcbx_info->operational.cee)
1262                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1263         if (dcbx_info->operational.ieee)
1264                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1265         if (dcbx_info->operational.local)
1266                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_STATIC;
1267
1268         p_hwfn->p_dcbx_info->set.enabled = dcbx_info->operational.enabled;
1269         BUILD_BUG_ON(sizeof(dcbx_info->operational.params) !=
1270                      sizeof(p_hwfn->p_dcbx_info->set.config.params));
1271         memcpy(&p_hwfn->p_dcbx_info->set.config.params,
1272                &dcbx_info->operational.params,
1273                sizeof(p_hwfn->p_dcbx_info->set.config.params));
1274         p_hwfn->p_dcbx_info->set.config.valid = true;
1275
1276         memcpy(params, &p_hwfn->p_dcbx_info->set, sizeof(struct qed_dcbx_set));
1277
1278         kfree(dcbx_info);
1279
1280         return 0;
1281 }
1282
1283 static struct qed_dcbx_get *qed_dcbnl_get_dcbx(struct qed_hwfn *hwfn,
1284                                                enum qed_mib_read_type type)
1285 {
1286         struct qed_dcbx_get *dcbx_info;
1287
1288         dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_ATOMIC);
1289         if (!dcbx_info)
1290                 return NULL;
1291
1292         if (qed_dcbx_query_params(hwfn, dcbx_info, type)) {
1293                 kfree(dcbx_info);
1294                 return NULL;
1295         }
1296
1297         if ((type == QED_DCBX_OPERATIONAL_MIB) &&
1298             !dcbx_info->operational.enabled) {
1299                 DP_INFO(hwfn, "DCBX is not enabled/operational\n");
1300                 kfree(dcbx_info);
1301                 return NULL;
1302         }
1303
1304         return dcbx_info;
1305 }
1306
1307 static u8 qed_dcbnl_getstate(struct qed_dev *cdev)
1308 {
1309         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1310         struct qed_dcbx_get *dcbx_info;
1311         bool enabled;
1312
1313         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1314         if (!dcbx_info)
1315                 return 0;
1316
1317         enabled = dcbx_info->operational.enabled;
1318         DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", enabled);
1319         kfree(dcbx_info);
1320
1321         return enabled;
1322 }
1323
1324 static u8 qed_dcbnl_setstate(struct qed_dev *cdev, u8 state)
1325 {
1326         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1327         struct qed_dcbx_set dcbx_set;
1328         struct qed_ptt *ptt;
1329         int rc;
1330
1331         DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", state);
1332
1333         memset(&dcbx_set, 0, sizeof(dcbx_set));
1334         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1335         if (rc)
1336                 return 1;
1337
1338         dcbx_set.enabled = !!state;
1339
1340         ptt = qed_ptt_acquire(hwfn);
1341         if (!ptt)
1342                 return 1;
1343
1344         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1345
1346         qed_ptt_release(hwfn, ptt);
1347
1348         return rc ? 1 : 0;
1349 }
1350
1351 static void qed_dcbnl_getpgtccfgtx(struct qed_dev *cdev, int tc, u8 *prio_type,
1352                                    u8 *pgid, u8 *bw_pct, u8 *up_map)
1353 {
1354         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1355         struct qed_dcbx_get *dcbx_info;
1356
1357         DP_VERBOSE(hwfn, QED_MSG_DCB, "tc = %d\n", tc);
1358         *prio_type = *pgid = *bw_pct = *up_map = 0;
1359         if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
1360                 DP_INFO(hwfn, "Invalid tc %d\n", tc);
1361                 return;
1362         }
1363
1364         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1365         if (!dcbx_info)
1366                 return;
1367
1368         *pgid = dcbx_info->operational.params.ets_pri_tc_tbl[tc];
1369         kfree(dcbx_info);
1370 }
1371
1372 static void qed_dcbnl_getpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 *bw_pct)
1373 {
1374         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1375         struct qed_dcbx_get *dcbx_info;
1376
1377         *bw_pct = 0;
1378         DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d\n", pgid);
1379         if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
1380                 DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
1381                 return;
1382         }
1383
1384         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1385         if (!dcbx_info)
1386                 return;
1387
1388         *bw_pct = dcbx_info->operational.params.ets_tc_bw_tbl[pgid];
1389         DP_VERBOSE(hwfn, QED_MSG_DCB, "bw_pct = %d\n", *bw_pct);
1390         kfree(dcbx_info);
1391 }
1392
1393 static void qed_dcbnl_getpgtccfgrx(struct qed_dev *cdev, int tc, u8 *prio,
1394                                    u8 *bwg_id, u8 *bw_pct, u8 *up_map)
1395 {
1396         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1397         *prio = *bwg_id = *bw_pct = *up_map = 0;
1398 }
1399
1400 static void qed_dcbnl_getpgbwgcfgrx(struct qed_dev *cdev,
1401                                     int bwg_id, u8 *bw_pct)
1402 {
1403         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1404         *bw_pct = 0;
1405 }
1406
1407 static void qed_dcbnl_getpfccfg(struct qed_dev *cdev,
1408                                 int priority, u8 *setting)
1409 {
1410         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1411         struct qed_dcbx_get *dcbx_info;
1412
1413         DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d\n", priority);
1414         if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
1415                 DP_INFO(hwfn, "Invalid priority %d\n", priority);
1416                 return;
1417         }
1418
1419         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1420         if (!dcbx_info)
1421                 return;
1422
1423         *setting = dcbx_info->operational.params.pfc.prio[priority];
1424         DP_VERBOSE(hwfn, QED_MSG_DCB, "setting = %d\n", *setting);
1425         kfree(dcbx_info);
1426 }
1427
1428 static void qed_dcbnl_setpfccfg(struct qed_dev *cdev, int priority, u8 setting)
1429 {
1430         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1431         struct qed_dcbx_set dcbx_set;
1432         struct qed_ptt *ptt;
1433         int rc;
1434
1435         DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d setting = %d\n",
1436                    priority, setting);
1437         if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
1438                 DP_INFO(hwfn, "Invalid priority %d\n", priority);
1439                 return;
1440         }
1441
1442         memset(&dcbx_set, 0, sizeof(dcbx_set));
1443         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1444         if (rc)
1445                 return;
1446
1447         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1448         dcbx_set.config.params.pfc.prio[priority] = !!setting;
1449
1450         ptt = qed_ptt_acquire(hwfn);
1451         if (!ptt)
1452                 return;
1453
1454         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1455
1456         qed_ptt_release(hwfn, ptt);
1457 }
1458
1459 static u8 qed_dcbnl_getcap(struct qed_dev *cdev, int capid, u8 *cap)
1460 {
1461         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1462         struct qed_dcbx_get *dcbx_info;
1463         int rc = 0;
1464
1465         DP_VERBOSE(hwfn, QED_MSG_DCB, "capid = %d\n", capid);
1466         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1467         if (!dcbx_info)
1468                 return 1;
1469
1470         switch (capid) {
1471         case DCB_CAP_ATTR_PG:
1472         case DCB_CAP_ATTR_PFC:
1473         case DCB_CAP_ATTR_UP2TC:
1474         case DCB_CAP_ATTR_GSP:
1475                 *cap = true;
1476                 break;
1477         case DCB_CAP_ATTR_PG_TCS:
1478         case DCB_CAP_ATTR_PFC_TCS:
1479                 *cap = 0x80;
1480                 break;
1481         case DCB_CAP_ATTR_DCBX:
1482                 *cap = (DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_VER_IEEE |
1483                         DCB_CAP_DCBX_STATIC);
1484                 break;
1485         default:
1486                 *cap = false;
1487                 rc = 1;
1488         }
1489
1490         DP_VERBOSE(hwfn, QED_MSG_DCB, "id = %d caps = %d\n", capid, *cap);
1491         kfree(dcbx_info);
1492
1493         return rc;
1494 }
1495
1496 static int qed_dcbnl_getnumtcs(struct qed_dev *cdev, int tcid, u8 *num)
1497 {
1498         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1499         struct qed_dcbx_get *dcbx_info;
1500         int rc = 0;
1501
1502         DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d\n", tcid);
1503         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1504         if (!dcbx_info)
1505                 return -EINVAL;
1506
1507         switch (tcid) {
1508         case DCB_NUMTCS_ATTR_PG:
1509                 *num = dcbx_info->operational.params.max_ets_tc;
1510                 break;
1511         case DCB_NUMTCS_ATTR_PFC:
1512                 *num = dcbx_info->operational.params.pfc.max_tc;
1513                 break;
1514         default:
1515                 rc = -EINVAL;
1516         }
1517
1518         kfree(dcbx_info);
1519         DP_VERBOSE(hwfn, QED_MSG_DCB, "numtcs = %d\n", *num);
1520
1521         return rc;
1522 }
1523
1524 static u8 qed_dcbnl_getpfcstate(struct qed_dev *cdev)
1525 {
1526         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1527         struct qed_dcbx_get *dcbx_info;
1528         bool enabled;
1529
1530         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1531         if (!dcbx_info)
1532                 return 0;
1533
1534         enabled = dcbx_info->operational.params.pfc.enabled;
1535         DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d\n", enabled);
1536         kfree(dcbx_info);
1537
1538         return enabled;
1539 }
1540
1541 static u8 qed_dcbnl_getdcbx(struct qed_dev *cdev)
1542 {
1543         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1544         struct qed_dcbx_get *dcbx_info;
1545         u8 mode = 0;
1546
1547         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1548         if (!dcbx_info)
1549                 return 0;
1550
1551         if (dcbx_info->operational.ieee)
1552                 mode |= DCB_CAP_DCBX_VER_IEEE;
1553         if (dcbx_info->operational.cee)
1554                 mode |= DCB_CAP_DCBX_VER_CEE;
1555         if (dcbx_info->operational.local)
1556                 mode |= DCB_CAP_DCBX_STATIC;
1557
1558         DP_VERBOSE(hwfn, QED_MSG_DCB, "dcb mode = %d\n", mode);
1559         kfree(dcbx_info);
1560
1561         return mode;
1562 }
1563
1564 static void qed_dcbnl_setpgtccfgtx(struct qed_dev *cdev,
1565                                    int tc,
1566                                    u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
1567 {
1568         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1569         struct qed_dcbx_set dcbx_set;
1570         struct qed_ptt *ptt;
1571         int rc;
1572
1573         DP_VERBOSE(hwfn, QED_MSG_DCB,
1574                    "tc = %d pri_type = %d pgid = %d bw_pct = %d up_map = %d\n",
1575                    tc, pri_type, pgid, bw_pct, up_map);
1576
1577         if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
1578                 DP_INFO(hwfn, "Invalid tc %d\n", tc);
1579                 return;
1580         }
1581
1582         memset(&dcbx_set, 0, sizeof(dcbx_set));
1583         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1584         if (rc)
1585                 return;
1586
1587         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1588         dcbx_set.config.params.ets_pri_tc_tbl[tc] = pgid;
1589
1590         ptt = qed_ptt_acquire(hwfn);
1591         if (!ptt)
1592                 return;
1593
1594         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1595
1596         qed_ptt_release(hwfn, ptt);
1597 }
1598
1599 static void qed_dcbnl_setpgtccfgrx(struct qed_dev *cdev, int prio,
1600                                    u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
1601 {
1602         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1603 }
1604
1605 static void qed_dcbnl_setpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 bw_pct)
1606 {
1607         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1608         struct qed_dcbx_set dcbx_set;
1609         struct qed_ptt *ptt;
1610         int rc;
1611
1612         DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d bw_pct = %d\n", pgid, bw_pct);
1613         if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
1614                 DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
1615                 return;
1616         }
1617
1618         memset(&dcbx_set, 0, sizeof(dcbx_set));
1619         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1620         if (rc)
1621                 return;
1622
1623         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1624         dcbx_set.config.params.ets_tc_bw_tbl[pgid] = bw_pct;
1625
1626         ptt = qed_ptt_acquire(hwfn);
1627         if (!ptt)
1628                 return;
1629
1630         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1631
1632         qed_ptt_release(hwfn, ptt);
1633 }
1634
1635 static void qed_dcbnl_setpgbwgcfgrx(struct qed_dev *cdev, int pgid, u8 bw_pct)
1636 {
1637         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1638 }
1639
1640 static u8 qed_dcbnl_setall(struct qed_dev *cdev)
1641 {
1642         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1643         struct qed_dcbx_set dcbx_set;
1644         struct qed_ptt *ptt;
1645         int rc;
1646
1647         memset(&dcbx_set, 0, sizeof(dcbx_set));
1648         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1649         if (rc)
1650                 return 1;
1651
1652         ptt = qed_ptt_acquire(hwfn);
1653         if (!ptt)
1654                 return 1;
1655
1656         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 1);
1657
1658         qed_ptt_release(hwfn, ptt);
1659
1660         return rc;
1661 }
1662
1663 static int qed_dcbnl_setnumtcs(struct qed_dev *cdev, int tcid, u8 num)
1664 {
1665         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1666         struct qed_dcbx_set dcbx_set;
1667         struct qed_ptt *ptt;
1668         int rc;
1669
1670         DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d num = %d\n", tcid, num);
1671         memset(&dcbx_set, 0, sizeof(dcbx_set));
1672         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1673         if (rc)
1674                 return 1;
1675
1676         switch (tcid) {
1677         case DCB_NUMTCS_ATTR_PG:
1678                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1679                 dcbx_set.config.params.max_ets_tc = num;
1680                 break;
1681         case DCB_NUMTCS_ATTR_PFC:
1682                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1683                 dcbx_set.config.params.pfc.max_tc = num;
1684                 break;
1685         default:
1686                 DP_INFO(hwfn, "Invalid tcid %d\n", tcid);
1687                 return -EINVAL;
1688         }
1689
1690         ptt = qed_ptt_acquire(hwfn);
1691         if (!ptt)
1692                 return -EINVAL;
1693
1694         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1695
1696         qed_ptt_release(hwfn, ptt);
1697
1698         return 0;
1699 }
1700
1701 static void qed_dcbnl_setpfcstate(struct qed_dev *cdev, u8 state)
1702 {
1703         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1704         struct qed_dcbx_set dcbx_set;
1705         struct qed_ptt *ptt;
1706         int rc;
1707
1708         DP_VERBOSE(hwfn, QED_MSG_DCB, "new state = %d\n", state);
1709
1710         memset(&dcbx_set, 0, sizeof(dcbx_set));
1711         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1712         if (rc)
1713                 return;
1714
1715         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1716         dcbx_set.config.params.pfc.enabled = !!state;
1717
1718         ptt = qed_ptt_acquire(hwfn);
1719         if (!ptt)
1720                 return;
1721
1722         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1723
1724         qed_ptt_release(hwfn, ptt);
1725 }
1726
1727 static int qed_dcbnl_getapp(struct qed_dev *cdev, u8 idtype, u16 idval)
1728 {
1729         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1730         struct qed_dcbx_get *dcbx_info;
1731         struct qed_app_entry *entry;
1732         bool ethtype;
1733         u8 prio = 0;
1734         int i;
1735
1736         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1737         if (!dcbx_info)
1738                 return -EINVAL;
1739
1740         ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
1741         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
1742                 entry = &dcbx_info->operational.params.app_entry[i];
1743                 if ((entry->ethtype == ethtype) && (entry->proto_id == idval)) {
1744                         prio = entry->prio;
1745                         break;
1746                 }
1747         }
1748
1749         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
1750                 DP_ERR(cdev, "App entry (%d, %d) not found\n", idtype, idval);
1751                 kfree(dcbx_info);
1752                 return -EINVAL;
1753         }
1754
1755         kfree(dcbx_info);
1756
1757         return prio;
1758 }
1759
1760 static int qed_dcbnl_setapp(struct qed_dev *cdev,
1761                             u8 idtype, u16 idval, u8 pri_map)
1762 {
1763         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1764         struct qed_dcbx_set dcbx_set;
1765         struct qed_app_entry *entry;
1766         struct qed_ptt *ptt;
1767         bool ethtype;
1768         int rc, i;
1769
1770         memset(&dcbx_set, 0, sizeof(dcbx_set));
1771         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1772         if (rc)
1773                 return -EINVAL;
1774
1775         ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
1776         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
1777                 entry = &dcbx_set.config.params.app_entry[i];
1778                 if ((entry->ethtype == ethtype) && (entry->proto_id == idval))
1779                         break;
1780                 /* First empty slot */
1781                 if (!entry->proto_id) {
1782                         dcbx_set.config.params.num_app_entries++;
1783                         break;
1784                 }
1785         }
1786
1787         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
1788                 DP_ERR(cdev, "App table is full\n");
1789                 return -EBUSY;
1790         }
1791
1792         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
1793         dcbx_set.config.params.app_entry[i].ethtype = ethtype;
1794         dcbx_set.config.params.app_entry[i].proto_id = idval;
1795         dcbx_set.config.params.app_entry[i].prio = pri_map;
1796
1797         ptt = qed_ptt_acquire(hwfn);
1798         if (!ptt)
1799                 return -EBUSY;
1800
1801         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1802
1803         qed_ptt_release(hwfn, ptt);
1804
1805         return rc;
1806 }
1807
1808 static u8 qed_dcbnl_setdcbx(struct qed_dev *cdev, u8 mode)
1809 {
1810         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1811         struct qed_dcbx_set dcbx_set;
1812         struct qed_ptt *ptt;
1813         int rc;
1814
1815         DP_VERBOSE(hwfn, QED_MSG_DCB, "new mode = %x\n", mode);
1816
1817         if (!(mode & DCB_CAP_DCBX_VER_IEEE) &&
1818             !(mode & DCB_CAP_DCBX_VER_CEE) && !(mode & DCB_CAP_DCBX_STATIC)) {
1819                 DP_INFO(hwfn, "Allowed modes are cee, ieee or static\n");
1820                 return 1;
1821         }
1822
1823         memset(&dcbx_set, 0, sizeof(dcbx_set));
1824         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1825         if (rc)
1826                 return 1;
1827
1828         dcbx_set.ver_num = 0;
1829         if (mode & DCB_CAP_DCBX_VER_CEE) {
1830                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1831                 dcbx_set.enabled = true;
1832         }
1833
1834         if (mode & DCB_CAP_DCBX_VER_IEEE) {
1835                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1836                 dcbx_set.enabled = true;
1837         }
1838
1839         if (mode & DCB_CAP_DCBX_STATIC) {
1840                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_STATIC;
1841                 dcbx_set.enabled = true;
1842         }
1843
1844         ptt = qed_ptt_acquire(hwfn);
1845         if (!ptt)
1846                 return 1;
1847
1848         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1849
1850         qed_ptt_release(hwfn, ptt);
1851
1852         return rc;
1853 }
1854
1855 static u8 qed_dcbnl_getfeatcfg(struct qed_dev *cdev, int featid, u8 *flags)
1856 {
1857         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1858         struct qed_dcbx_get *dcbx_info;
1859
1860         DP_VERBOSE(hwfn, QED_MSG_DCB, "Feature id  = %d\n", featid);
1861         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1862         if (!dcbx_info)
1863                 return 1;
1864
1865         *flags = 0;
1866         switch (featid) {
1867         case DCB_FEATCFG_ATTR_PG:
1868                 if (dcbx_info->operational.params.ets_enabled)
1869                         *flags = DCB_FEATCFG_ENABLE;
1870                 else
1871                         *flags = DCB_FEATCFG_ERROR;
1872                 break;
1873         case DCB_FEATCFG_ATTR_PFC:
1874                 if (dcbx_info->operational.params.pfc.enabled)
1875                         *flags = DCB_FEATCFG_ENABLE;
1876                 else
1877                         *flags = DCB_FEATCFG_ERROR;
1878                 break;
1879         case DCB_FEATCFG_ATTR_APP:
1880                 if (dcbx_info->operational.params.app_valid)
1881                         *flags = DCB_FEATCFG_ENABLE;
1882                 else
1883                         *flags = DCB_FEATCFG_ERROR;
1884                 break;
1885         default:
1886                 DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
1887                 kfree(dcbx_info);
1888                 return 1;
1889         }
1890
1891         DP_VERBOSE(hwfn, QED_MSG_DCB, "flags = %d\n", *flags);
1892         kfree(dcbx_info);
1893
1894         return 0;
1895 }
1896
1897 static u8 qed_dcbnl_setfeatcfg(struct qed_dev *cdev, int featid, u8 flags)
1898 {
1899         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1900         struct qed_dcbx_set dcbx_set;
1901         bool enabled, willing;
1902         struct qed_ptt *ptt;
1903         int rc;
1904
1905         DP_VERBOSE(hwfn, QED_MSG_DCB, "featid = %d flags = %d\n",
1906                    featid, flags);
1907         memset(&dcbx_set, 0, sizeof(dcbx_set));
1908         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1909         if (rc)
1910                 return 1;
1911
1912         enabled = !!(flags & DCB_FEATCFG_ENABLE);
1913         willing = !!(flags & DCB_FEATCFG_WILLING);
1914         switch (featid) {
1915         case DCB_FEATCFG_ATTR_PG:
1916                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1917                 dcbx_set.config.params.ets_enabled = enabled;
1918                 dcbx_set.config.params.ets_willing = willing;
1919                 break;
1920         case DCB_FEATCFG_ATTR_PFC:
1921                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1922                 dcbx_set.config.params.pfc.enabled = enabled;
1923                 dcbx_set.config.params.pfc.willing = willing;
1924                 break;
1925         case DCB_FEATCFG_ATTR_APP:
1926                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
1927                 dcbx_set.config.params.app_willing = willing;
1928                 break;
1929         default:
1930                 DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
1931                 return 1;
1932         }
1933
1934         ptt = qed_ptt_acquire(hwfn);
1935         if (!ptt)
1936                 return 1;
1937
1938         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1939
1940         qed_ptt_release(hwfn, ptt);
1941
1942         return 0;
1943 }
1944
1945 static int qed_dcbnl_peer_getappinfo(struct qed_dev *cdev,
1946                                      struct dcb_peer_app_info *info,
1947                                      u16 *app_count)
1948 {
1949         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1950         struct qed_dcbx_get *dcbx_info;
1951
1952         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1953         if (!dcbx_info)
1954                 return -EINVAL;
1955
1956         info->willing = dcbx_info->remote.params.app_willing;
1957         info->error = dcbx_info->remote.params.app_error;
1958         *app_count = dcbx_info->remote.params.num_app_entries;
1959         kfree(dcbx_info);
1960
1961         return 0;
1962 }
1963
1964 static int qed_dcbnl_peer_getapptable(struct qed_dev *cdev,
1965                                       struct dcb_app *table)
1966 {
1967         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1968         struct qed_dcbx_get *dcbx_info;
1969         int i;
1970
1971         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1972         if (!dcbx_info)
1973                 return -EINVAL;
1974
1975         for (i = 0; i < dcbx_info->remote.params.num_app_entries; i++) {
1976                 if (dcbx_info->remote.params.app_entry[i].ethtype)
1977                         table[i].selector = DCB_APP_IDTYPE_ETHTYPE;
1978                 else
1979                         table[i].selector = DCB_APP_IDTYPE_PORTNUM;
1980                 table[i].priority = dcbx_info->remote.params.app_entry[i].prio;
1981                 table[i].protocol =
1982                     dcbx_info->remote.params.app_entry[i].proto_id;
1983         }
1984
1985         kfree(dcbx_info);
1986
1987         return 0;
1988 }
1989
1990 static int qed_dcbnl_cee_peer_getpfc(struct qed_dev *cdev, struct cee_pfc *pfc)
1991 {
1992         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1993         struct qed_dcbx_get *dcbx_info;
1994         int i;
1995
1996         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1997         if (!dcbx_info)
1998                 return -EINVAL;
1999
2000         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2001                 if (dcbx_info->remote.params.pfc.prio[i])
2002                         pfc->pfc_en |= BIT(i);
2003
2004         pfc->tcs_supported = dcbx_info->remote.params.pfc.max_tc;
2005         DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d tcs_supported = %d\n",
2006                    pfc->pfc_en, pfc->tcs_supported);
2007         kfree(dcbx_info);
2008
2009         return 0;
2010 }
2011
2012 static int qed_dcbnl_cee_peer_getpg(struct qed_dev *cdev, struct cee_pg *pg)
2013 {
2014         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2015         struct qed_dcbx_get *dcbx_info;
2016         int i;
2017
2018         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
2019         if (!dcbx_info)
2020                 return -EINVAL;
2021
2022         pg->willing = dcbx_info->remote.params.ets_willing;
2023         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
2024                 pg->pg_bw[i] = dcbx_info->remote.params.ets_tc_bw_tbl[i];
2025                 pg->prio_pg[i] = dcbx_info->remote.params.ets_pri_tc_tbl[i];
2026         }
2027
2028         DP_VERBOSE(hwfn, QED_MSG_DCB, "willing = %d", pg->willing);
2029         kfree(dcbx_info);
2030
2031         return 0;
2032 }
2033
2034 static int qed_dcbnl_get_ieee_pfc(struct qed_dev *cdev,
2035                                   struct ieee_pfc *pfc, bool remote)
2036 {
2037         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2038         struct qed_dcbx_params *params;
2039         struct qed_dcbx_get *dcbx_info;
2040         int rc, i;
2041
2042         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2043         if (!dcbx_info)
2044                 return -EINVAL;
2045
2046         if (!dcbx_info->operational.ieee) {
2047                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2048                 kfree(dcbx_info);
2049                 return -EINVAL;
2050         }
2051
2052         if (remote) {
2053                 memset(dcbx_info, 0, sizeof(*dcbx_info));
2054                 rc = qed_dcbx_query_params(hwfn, dcbx_info,
2055                                            QED_DCBX_REMOTE_MIB);
2056                 if (rc) {
2057                         kfree(dcbx_info);
2058                         return -EINVAL;
2059                 }
2060
2061                 params = &dcbx_info->remote.params;
2062         } else {
2063                 params = &dcbx_info->operational.params;
2064         }
2065
2066         pfc->pfc_cap = params->pfc.max_tc;
2067         pfc->pfc_en = 0;
2068         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2069                 if (params->pfc.prio[i])
2070                         pfc->pfc_en |= BIT(i);
2071
2072         kfree(dcbx_info);
2073
2074         return 0;
2075 }
2076
2077 static int qed_dcbnl_ieee_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2078 {
2079         return qed_dcbnl_get_ieee_pfc(cdev, pfc, false);
2080 }
2081
2082 static int qed_dcbnl_ieee_setpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2083 {
2084         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2085         struct qed_dcbx_get *dcbx_info;
2086         struct qed_dcbx_set dcbx_set;
2087         struct qed_ptt *ptt;
2088         int rc, i;
2089
2090         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2091         if (!dcbx_info)
2092                 return -EINVAL;
2093
2094         if (!dcbx_info->operational.ieee) {
2095                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2096                 kfree(dcbx_info);
2097                 return -EINVAL;
2098         }
2099
2100         kfree(dcbx_info);
2101
2102         memset(&dcbx_set, 0, sizeof(dcbx_set));
2103         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2104         if (rc)
2105                 return -EINVAL;
2106
2107         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
2108         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2109                 dcbx_set.config.params.pfc.prio[i] = !!(pfc->pfc_en & BIT(i));
2110
2111         dcbx_set.config.params.pfc.max_tc = pfc->pfc_cap;
2112
2113         ptt = qed_ptt_acquire(hwfn);
2114         if (!ptt)
2115                 return -EINVAL;
2116
2117         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2118
2119         qed_ptt_release(hwfn, ptt);
2120
2121         return rc;
2122 }
2123
2124 static int qed_dcbnl_get_ieee_ets(struct qed_dev *cdev,
2125                                   struct ieee_ets *ets, bool remote)
2126 {
2127         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2128         struct qed_dcbx_get *dcbx_info;
2129         struct qed_dcbx_params *params;
2130         int rc;
2131
2132         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2133         if (!dcbx_info)
2134                 return -EINVAL;
2135
2136         if (!dcbx_info->operational.ieee) {
2137                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2138                 kfree(dcbx_info);
2139                 return -EINVAL;
2140         }
2141
2142         if (remote) {
2143                 memset(dcbx_info, 0, sizeof(*dcbx_info));
2144                 rc = qed_dcbx_query_params(hwfn, dcbx_info,
2145                                            QED_DCBX_REMOTE_MIB);
2146                 if (rc) {
2147                         kfree(dcbx_info);
2148                         return -EINVAL;
2149                 }
2150
2151                 params = &dcbx_info->remote.params;
2152         } else {
2153                 params = &dcbx_info->operational.params;
2154         }
2155
2156         ets->ets_cap = params->max_ets_tc;
2157         ets->willing = params->ets_willing;
2158         ets->cbs = params->ets_cbs;
2159         memcpy(ets->tc_tx_bw, params->ets_tc_bw_tbl, sizeof(ets->tc_tx_bw));
2160         memcpy(ets->tc_tsa, params->ets_tc_tsa_tbl, sizeof(ets->tc_tsa));
2161         memcpy(ets->prio_tc, params->ets_pri_tc_tbl, sizeof(ets->prio_tc));
2162         kfree(dcbx_info);
2163
2164         return 0;
2165 }
2166
2167 static int qed_dcbnl_ieee_getets(struct qed_dev *cdev, struct ieee_ets *ets)
2168 {
2169         return qed_dcbnl_get_ieee_ets(cdev, ets, false);
2170 }
2171
2172 static int qed_dcbnl_ieee_setets(struct qed_dev *cdev, struct ieee_ets *ets)
2173 {
2174         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2175         struct qed_dcbx_get *dcbx_info;
2176         struct qed_dcbx_set dcbx_set;
2177         struct qed_ptt *ptt;
2178         int rc;
2179
2180         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2181         if (!dcbx_info)
2182                 return -EINVAL;
2183
2184         if (!dcbx_info->operational.ieee) {
2185                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2186                 kfree(dcbx_info);
2187                 return -EINVAL;
2188         }
2189
2190         kfree(dcbx_info);
2191
2192         memset(&dcbx_set, 0, sizeof(dcbx_set));
2193         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2194         if (rc)
2195                 return -EINVAL;
2196
2197         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
2198         dcbx_set.config.params.max_ets_tc = ets->ets_cap;
2199         dcbx_set.config.params.ets_willing = ets->willing;
2200         dcbx_set.config.params.ets_cbs = ets->cbs;
2201         memcpy(dcbx_set.config.params.ets_tc_bw_tbl, ets->tc_tx_bw,
2202                sizeof(ets->tc_tx_bw));
2203         memcpy(dcbx_set.config.params.ets_tc_tsa_tbl, ets->tc_tsa,
2204                sizeof(ets->tc_tsa));
2205         memcpy(dcbx_set.config.params.ets_pri_tc_tbl, ets->prio_tc,
2206                sizeof(ets->prio_tc));
2207
2208         ptt = qed_ptt_acquire(hwfn);
2209         if (!ptt)
2210                 return -EINVAL;
2211
2212         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2213
2214         qed_ptt_release(hwfn, ptt);
2215
2216         return rc;
2217 }
2218
2219 static int
2220 qed_dcbnl_ieee_peer_getets(struct qed_dev *cdev, struct ieee_ets *ets)
2221 {
2222         return qed_dcbnl_get_ieee_ets(cdev, ets, true);
2223 }
2224
2225 static int
2226 qed_dcbnl_ieee_peer_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2227 {
2228         return qed_dcbnl_get_ieee_pfc(cdev, pfc, true);
2229 }
2230
2231 static int qed_get_sf_ieee_value(u8 selector, u8 *sf_ieee)
2232 {
2233         switch (selector) {
2234         case IEEE_8021QAZ_APP_SEL_ETHERTYPE:
2235                 *sf_ieee = QED_DCBX_SF_IEEE_ETHTYPE;
2236                 break;
2237         case IEEE_8021QAZ_APP_SEL_STREAM:
2238                 *sf_ieee = QED_DCBX_SF_IEEE_TCP_PORT;
2239                 break;
2240         case IEEE_8021QAZ_APP_SEL_DGRAM:
2241                 *sf_ieee = QED_DCBX_SF_IEEE_UDP_PORT;
2242                 break;
2243         case IEEE_8021QAZ_APP_SEL_ANY:
2244                 *sf_ieee = QED_DCBX_SF_IEEE_TCP_UDP_PORT;
2245                 break;
2246         default:
2247                 return -EINVAL;
2248         }
2249
2250         return 0;
2251 }
2252
2253 static int qed_dcbnl_ieee_getapp(struct qed_dev *cdev, struct dcb_app *app)
2254 {
2255         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2256         struct qed_dcbx_get *dcbx_info;
2257         struct qed_app_entry *entry;
2258         u8 prio = 0;
2259         u8 sf_ieee;
2260         int i;
2261
2262         DP_VERBOSE(hwfn, QED_MSG_DCB, "selector = %d protocol = %d\n",
2263                    app->selector, app->protocol);
2264
2265         if (qed_get_sf_ieee_value(app->selector, &sf_ieee)) {
2266                 DP_INFO(cdev, "Invalid selector field value %d\n",
2267                         app->selector);
2268                 return -EINVAL;
2269         }
2270
2271         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2272         if (!dcbx_info)
2273                 return -EINVAL;
2274
2275         if (!dcbx_info->operational.ieee) {
2276                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2277                 kfree(dcbx_info);
2278                 return -EINVAL;
2279         }
2280
2281         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
2282                 entry = &dcbx_info->operational.params.app_entry[i];
2283                 if ((entry->sf_ieee == sf_ieee) &&
2284                     (entry->proto_id == app->protocol)) {
2285                         prio = entry->prio;
2286                         break;
2287                 }
2288         }
2289
2290         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
2291                 DP_ERR(cdev, "App entry (%d, %d) not found\n", app->selector,
2292                        app->protocol);
2293                 kfree(dcbx_info);
2294                 return -EINVAL;
2295         }
2296
2297         app->priority = ffs(prio) - 1;
2298
2299         kfree(dcbx_info);
2300
2301         return 0;
2302 }
2303
2304 static int qed_dcbnl_ieee_setapp(struct qed_dev *cdev, struct dcb_app *app)
2305 {
2306         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2307         struct qed_dcbx_get *dcbx_info;
2308         struct qed_dcbx_set dcbx_set;
2309         struct qed_app_entry *entry;
2310         struct qed_ptt *ptt;
2311         u8 sf_ieee;
2312         int rc, i;
2313
2314         DP_VERBOSE(hwfn, QED_MSG_DCB, "selector = %d protocol = %d pri = %d\n",
2315                    app->selector, app->protocol, app->priority);
2316         if (app->priority >= QED_MAX_PFC_PRIORITIES) {
2317                 DP_INFO(hwfn, "Invalid priority %d\n", app->priority);
2318                 return -EINVAL;
2319         }
2320
2321         if (qed_get_sf_ieee_value(app->selector, &sf_ieee)) {
2322                 DP_INFO(cdev, "Invalid selector field value %d\n",
2323                         app->selector);
2324                 return -EINVAL;
2325         }
2326
2327         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2328         if (!dcbx_info)
2329                 return -EINVAL;
2330
2331         if (!dcbx_info->operational.ieee) {
2332                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2333                 kfree(dcbx_info);
2334                 return -EINVAL;
2335         }
2336
2337         kfree(dcbx_info);
2338
2339         memset(&dcbx_set, 0, sizeof(dcbx_set));
2340         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2341         if (rc)
2342                 return -EINVAL;
2343
2344         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
2345                 entry = &dcbx_set.config.params.app_entry[i];
2346                 if ((entry->sf_ieee == sf_ieee) &&
2347                     (entry->proto_id == app->protocol))
2348                         break;
2349                 /* First empty slot */
2350                 if (!entry->proto_id) {
2351                         dcbx_set.config.params.num_app_entries++;
2352                         break;
2353                 }
2354         }
2355
2356         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
2357                 DP_ERR(cdev, "App table is full\n");
2358                 return -EBUSY;
2359         }
2360
2361         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
2362         dcbx_set.config.params.app_entry[i].sf_ieee = sf_ieee;
2363         dcbx_set.config.params.app_entry[i].proto_id = app->protocol;
2364         dcbx_set.config.params.app_entry[i].prio = BIT(app->priority);
2365
2366         ptt = qed_ptt_acquire(hwfn);
2367         if (!ptt)
2368                 return -EBUSY;
2369
2370         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2371
2372         qed_ptt_release(hwfn, ptt);
2373
2374         return rc;
2375 }
2376
2377 const struct qed_eth_dcbnl_ops qed_dcbnl_ops_pass = {
2378         .getstate = qed_dcbnl_getstate,
2379         .setstate = qed_dcbnl_setstate,
2380         .getpgtccfgtx = qed_dcbnl_getpgtccfgtx,
2381         .getpgbwgcfgtx = qed_dcbnl_getpgbwgcfgtx,
2382         .getpgtccfgrx = qed_dcbnl_getpgtccfgrx,
2383         .getpgbwgcfgrx = qed_dcbnl_getpgbwgcfgrx,
2384         .getpfccfg = qed_dcbnl_getpfccfg,
2385         .setpfccfg = qed_dcbnl_setpfccfg,
2386         .getcap = qed_dcbnl_getcap,
2387         .getnumtcs = qed_dcbnl_getnumtcs,
2388         .getpfcstate = qed_dcbnl_getpfcstate,
2389         .getdcbx = qed_dcbnl_getdcbx,
2390         .setpgtccfgtx = qed_dcbnl_setpgtccfgtx,
2391         .setpgtccfgrx = qed_dcbnl_setpgtccfgrx,
2392         .setpgbwgcfgtx = qed_dcbnl_setpgbwgcfgtx,
2393         .setpgbwgcfgrx = qed_dcbnl_setpgbwgcfgrx,
2394         .setall = qed_dcbnl_setall,
2395         .setnumtcs = qed_dcbnl_setnumtcs,
2396         .setpfcstate = qed_dcbnl_setpfcstate,
2397         .setapp = qed_dcbnl_setapp,
2398         .setdcbx = qed_dcbnl_setdcbx,
2399         .setfeatcfg = qed_dcbnl_setfeatcfg,
2400         .getfeatcfg = qed_dcbnl_getfeatcfg,
2401         .getapp = qed_dcbnl_getapp,
2402         .peer_getappinfo = qed_dcbnl_peer_getappinfo,
2403         .peer_getapptable = qed_dcbnl_peer_getapptable,
2404         .cee_peer_getpfc = qed_dcbnl_cee_peer_getpfc,
2405         .cee_peer_getpg = qed_dcbnl_cee_peer_getpg,
2406         .ieee_getpfc = qed_dcbnl_ieee_getpfc,
2407         .ieee_setpfc = qed_dcbnl_ieee_setpfc,
2408         .ieee_getets = qed_dcbnl_ieee_getets,
2409         .ieee_setets = qed_dcbnl_ieee_setets,
2410         .ieee_peer_getpfc = qed_dcbnl_ieee_peer_getpfc,
2411         .ieee_peer_getets = qed_dcbnl_ieee_peer_getets,
2412         .ieee_getapp = qed_dcbnl_ieee_getapp,
2413         .ieee_setapp = qed_dcbnl_ieee_setapp,
2414 };
2415
2416 #endif