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

   1 /* QLogic qed NIC Driver
   2  * Copyright (c) 2015-2017  QLogic Corporation
   3  *
   4  * This software is available to you under a choice of one of two
   5  * licenses.  You may choose to be licensed under the terms of the GNU
   6  * General Public License (GPL) Version 2, available from the file
   7  * COPYING in the main directory of this source tree, or the
   8  * OpenIB.org BSD license below:
   9  *
  10  *     Redistribution and use in source and binary forms, with or
  11  *     without modification, are permitted provided that the following
  12  *     conditions are met:
  13  *
  14  *      - Redistributions of source code must retain the above
  15  *        copyright notice, this list of conditions and the following
  16  *        disclaimer.
  17  *
  18  *      - Redistributions in binary form must reproduce the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer in the documentation and /or other materials
  21  *        provided with the distribution.
  22  *
  23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30  * SOFTWARE.
  31  */
  32
  33 #include <linux/types.h>
  34 #include <asm/byteorder.h>
  35 #include <linux/bitops.h>
  36 #include <linux/dcbnl.h>
  37 #include <linux/errno.h>
  38 #include <linux/kernel.h>
  39 #include <linux/slab.h>
  40 #include <linux/string.h>
  41 #include "qed.h"
  42 #include "qed_cxt.h"
  43 #include "qed_dcbx.h"
  44 #include "qed_hsi.h"
  45 #include "qed_sp.h"
  46 #include "qed_sriov.h"
  47 #include "qed_rdma.h"
  48 #ifdef CONFIG_DCB
  49 #include <linux/qed/qed_eth_if.h>
  50 #endif
  51
  52 #define QED_DCBX_MAX_MIB_READ_TRY       (100)
  53 #define QED_ETH_TYPE_DEFAULT            (0)
  54 #define QED_ETH_TYPE_ROCE               (0x8915)
  55 #define QED_UDP_PORT_TYPE_ROCE_V2       (0x12B7)
  56 #define QED_ETH_TYPE_FCOE               (0x8906)
  57 #define QED_TCP_PORT_ISCSI              (0xCBC)
  58
  59 #define QED_DCBX_INVALID_PRIORITY       0xFF
  60
  61 /* Get Traffic Class from priority traffic class table, 4 bits represent
  62  * the traffic class corresponding to the priority.
  63  */
  64 #define QED_DCBX_PRIO2TC(prio_tc_tbl, prio) \
  65         ((u32)(prio_tc_tbl >> ((7 - prio) * 4)) & 0x7)
  66
  67 static const struct qed_dcbx_app_metadata qed_dcbx_app_update[] = {
  68         {DCBX_PROTOCOL_ISCSI, "ISCSI", QED_PCI_ISCSI},
  69         {DCBX_PROTOCOL_FCOE, "FCOE", QED_PCI_FCOE},
  70         {DCBX_PROTOCOL_ROCE, "ROCE", QED_PCI_ETH_ROCE},
  71         {DCBX_PROTOCOL_ROCE_V2, "ROCE_V2", QED_PCI_ETH_ROCE},
  72         {DCBX_PROTOCOL_ETH, "ETH", QED_PCI_ETH},
  73 };
  74
  75 static bool qed_dcbx_app_ethtype(u32 app_info_bitmap)
  76 {
  77         return !!(QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) ==
  78                   DCBX_APP_SF_ETHTYPE);
  79 }
  80
  81 static bool qed_dcbx_ieee_app_ethtype(u32 app_info_bitmap)
  82 {
  83         u8 mfw_val = QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE);
  84
  85         /* Old MFW */
  86         if (mfw_val == DCBX_APP_SF_IEEE_RESERVED)
  87                 return qed_dcbx_app_ethtype(app_info_bitmap);
  88
  89         return !!(mfw_val == DCBX_APP_SF_IEEE_ETHTYPE);
  90 }
  91
  92 static bool qed_dcbx_app_port(u32 app_info_bitmap)
  93 {
  94         return !!(QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF) ==
  95                   DCBX_APP_SF_PORT);
  96 }
  97
  98 static bool qed_dcbx_ieee_app_port(u32 app_info_bitmap, u8 type)
  99 {
 100         u8 mfw_val = QED_MFW_GET_FIELD(app_info_bitmap, DCBX_APP_SF_IEEE);
 101
 102         /* Old MFW */
 103         if (mfw_val == DCBX_APP_SF_IEEE_RESERVED)
 104                 return qed_dcbx_app_port(app_info_bitmap);
 105
 106         return !!(mfw_val == type || mfw_val == DCBX_APP_SF_IEEE_TCP_UDP_PORT);
 107 }
 108
 109 static bool qed_dcbx_default_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
 110 {
 111         bool ethtype;
 112
 113         if (ieee)
 114                 ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
 115         else
 116                 ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
 117
 118         return !!(ethtype && (proto_id == QED_ETH_TYPE_DEFAULT));
 119 }
 120
 121 static bool qed_dcbx_iscsi_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
 122 {
 123         bool port;
 124
 125         if (ieee)
 126                 port = qed_dcbx_ieee_app_port(app_info_bitmap,
 127                                               DCBX_APP_SF_IEEE_TCP_PORT);
 128         else
 129                 port = qed_dcbx_app_port(app_info_bitmap);
 130
 131         return !!(port && (proto_id == QED_TCP_PORT_ISCSI));
 132 }
 133
 134 static bool qed_dcbx_fcoe_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
 135 {
 136         bool ethtype;
 137
 138         if (ieee)
 139                 ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
 140         else
 141                 ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
 142
 143         return !!(ethtype && (proto_id == QED_ETH_TYPE_FCOE));
 144 }
 145
 146 static bool qed_dcbx_roce_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
 147 {
 148         bool ethtype;
 149
 150         if (ieee)
 151                 ethtype = qed_dcbx_ieee_app_ethtype(app_info_bitmap);
 152         else
 153                 ethtype = qed_dcbx_app_ethtype(app_info_bitmap);
 154
 155         return !!(ethtype && (proto_id == QED_ETH_TYPE_ROCE));
 156 }
 157
 158 static bool qed_dcbx_roce_v2_tlv(u32 app_info_bitmap, u16 proto_id, bool ieee)
 159 {
 160         bool port;
 161
 162         if (ieee)
 163                 port = qed_dcbx_ieee_app_port(app_info_bitmap,
 164                                               DCBX_APP_SF_IEEE_UDP_PORT);
 165         else
 166                 port = qed_dcbx_app_port(app_info_bitmap);
 167
 168         return !!(port && (proto_id == QED_UDP_PORT_TYPE_ROCE_V2));
 169 }
 170
 171 static void
 172 qed_dcbx_dp_protocol(struct qed_hwfn *p_hwfn, struct qed_dcbx_results *p_data)
 173 {
 174         enum dcbx_protocol_type id;
 175         int i;
 176
 177         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "DCBX negotiated: %d\n",
 178                    p_data->dcbx_enabled);
 179
 180         for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) {
 181                 id = qed_dcbx_app_update[i].id;
 182
 183                 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 184                            "%s info: update %d, enable %d, prio %d, tc %d, num_tc %d\n",
 185                            qed_dcbx_app_update[i].name, p_data->arr[id].update,
 186                            p_data->arr[id].enable, p_data->arr[id].priority,
 187                            p_data->arr[id].tc, p_hwfn->hw_info.num_active_tc);
 188         }
 189 }
 190
 191 static void
 192 qed_dcbx_set_params(struct qed_dcbx_results *p_data,
 193                     struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
 194                     bool app_tlv, bool enable, u8 prio, u8 tc,
 195                     enum dcbx_protocol_type type,
 196                     enum qed_pci_personality personality)
 197 {
 198         /* PF update ramrod data */
 199         p_data->arr[type].enable = enable;
 200         p_data->arr[type].priority = prio;
 201         p_data->arr[type].tc = tc;
 202         if (enable)
 203                 p_data->arr[type].update = UPDATE_DCB;
 204         else
 205                 p_data->arr[type].update = DONT_UPDATE_DCB_DSCP;
 206
 207         /* Do not add vlan tag 0 when DCB is enabled and port in UFP/OV mode */
 208         if ((test_bit(QED_MF_8021Q_TAGGING, &p_hwfn->cdev->mf_bits) ||
 209              test_bit(QED_MF_8021AD_TAGGING, &p_hwfn->cdev->mf_bits)))
 210                 p_data->arr[type].dont_add_vlan0 = true;
 211
 212         /* QM reconf data */
 213         if (app_tlv && p_hwfn->hw_info.personality == personality)
 214                 qed_hw_info_set_offload_tc(&p_hwfn->hw_info, tc);
 215
 216         /* Configure dcbx vlan priority in doorbell block for roce EDPM */
 217         if (test_bit(QED_MF_UFP_SPECIFIC, &p_hwfn->cdev->mf_bits) &&
 218             type == DCBX_PROTOCOL_ROCE) {
 219                 qed_wr(p_hwfn, p_ptt, DORQ_REG_TAG1_OVRD_MODE, 1);
 220                 qed_wr(p_hwfn, p_ptt, DORQ_REG_PF_PCP_BB_K2, prio << 1);
 221         }
 222 }
 223
 224 /* Update app protocol data and hw_info fields with the TLV info */
 225 static void
 226 qed_dcbx_update_app_info(struct qed_dcbx_results *p_data,
 227                          struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
 228                          bool app_tlv, bool enable, u8 prio, u8 tc,
 229                          enum dcbx_protocol_type type)
 230 {
 231         enum qed_pci_personality personality;
 232         enum dcbx_protocol_type id;
 233         int i;
 234
 235         for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) {
 236                 id = qed_dcbx_app_update[i].id;
 237
 238                 if (type != id)
 239                         continue;
 240
 241                 personality = qed_dcbx_app_update[i].personality;
 242
 243                 qed_dcbx_set_params(p_data, p_hwfn, p_ptt, app_tlv, enable,
 244                                     prio, tc, type, personality);
 245         }
 246 }
 247
 248 static bool
 249 qed_dcbx_get_app_protocol_type(struct qed_hwfn *p_hwfn,
 250                                u32 app_prio_bitmap,
 251                                u16 id, enum dcbx_protocol_type *type, bool ieee)
 252 {
 253         if (qed_dcbx_fcoe_tlv(app_prio_bitmap, id, ieee)) {
 254                 *type = DCBX_PROTOCOL_FCOE;
 255         } else if (qed_dcbx_roce_tlv(app_prio_bitmap, id, ieee)) {
 256                 *type = DCBX_PROTOCOL_ROCE;
 257         } else if (qed_dcbx_iscsi_tlv(app_prio_bitmap, id, ieee)) {
 258                 *type = DCBX_PROTOCOL_ISCSI;
 259         } else if (qed_dcbx_default_tlv(app_prio_bitmap, id, ieee)) {
 260                 *type = DCBX_PROTOCOL_ETH;
 261         } else if (qed_dcbx_roce_v2_tlv(app_prio_bitmap, id, ieee)) {
 262                 *type = DCBX_PROTOCOL_ROCE_V2;
 263         } else {
 264                 *type = DCBX_MAX_PROTOCOL_TYPE;
 265                 DP_ERR(p_hwfn, "No action required, App TLV entry = 0x%x\n",
 266                        app_prio_bitmap);
 267                 return false;
 268         }
 269
 270         return true;
 271 }
 272
 273 /* Parse app TLV's to update TC information in hw_info structure for
 274  * reconfiguring QM. Get protocol specific data for PF update ramrod command.
 275  */
 276 static int
 277 qed_dcbx_process_tlv(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
 278                      struct qed_dcbx_results *p_data,
 279                      struct dcbx_app_priority_entry *p_tbl,
 280                      u32 pri_tc_tbl, int count, u8 dcbx_version)
 281 {
 282         enum dcbx_protocol_type type;
 283         bool enable, ieee, eth_tlv;
 284         u8 tc, priority_map;
 285         u16 protocol_id;
 286         int priority;
 287         int i;
 288
 289         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Num APP entries = %d\n", count);
 290
 291         ieee = (dcbx_version == DCBX_CONFIG_VERSION_IEEE);
 292         eth_tlv = false;
 293         /* Parse APP TLV */
 294         for (i = 0; i < count; i++) {
 295                 protocol_id = QED_MFW_GET_FIELD(p_tbl[i].entry,
 296                                                 DCBX_APP_PROTOCOL_ID);
 297                 priority_map = QED_MFW_GET_FIELD(p_tbl[i].entry,
 298                                                  DCBX_APP_PRI_MAP);
 299                 priority = ffs(priority_map) - 1;
 300                 if (priority < 0) {
 301                         DP_ERR(p_hwfn, "Invalid priority\n");
 302                         return -EINVAL;
 303                 }
 304
 305                 tc = QED_DCBX_PRIO2TC(pri_tc_tbl, priority);
 306                 if (qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
 307                                                    protocol_id, &type, ieee)) {
 308                         /* ETH always have the enable bit reset, as it gets
 309                          * vlan information per packet. For other protocols,
 310                          * should be set according to the dcbx_enabled
 311                          * indication, but we only got here if there was an
 312                          * app tlv for the protocol, so dcbx must be enabled.
 313                          */
 314                         if (type == DCBX_PROTOCOL_ETH) {
 315                                 enable = false;
 316                                 eth_tlv = true;
 317                         } else {
 318                                 enable = true;
 319                         }
 320
 321                         qed_dcbx_update_app_info(p_data, p_hwfn, p_ptt, true,
 322                                                  enable, priority, tc, type);
 323                 }
 324         }
 325
 326         /* If Eth TLV is not detected, use UFP TC as default TC */
 327         if (test_bit(QED_MF_UFP_SPECIFIC, &p_hwfn->cdev->mf_bits) && !eth_tlv)
 328                 p_data->arr[DCBX_PROTOCOL_ETH].tc = p_hwfn->ufp_info.tc;
 329
 330         /* Update ramrod protocol data and hw_info fields
 331          * with default info when corresponding APP TLV's are not detected.
 332          * The enabled field has a different logic for ethernet as only for
 333          * ethernet dcb should disabled by default, as the information arrives
 334          * from the OS (unless an explicit app tlv was present).
 335          */
 336         tc = p_data->arr[DCBX_PROTOCOL_ETH].tc;
 337         priority = p_data->arr[DCBX_PROTOCOL_ETH].priority;
 338         for (type = 0; type < DCBX_MAX_PROTOCOL_TYPE; type++) {
 339                 if (p_data->arr[type].update)
 340                         continue;
 341
 342                 enable = (type == DCBX_PROTOCOL_ETH) ? false : !!dcbx_version;
 343                 qed_dcbx_update_app_info(p_data, p_hwfn, p_ptt, false, enable,
 344                                          priority, tc, type);
 345         }
 346
 347         return 0;
 348 }
 349
 350 /* Parse app TLV's to update TC information in hw_info structure for
 351  * reconfiguring QM. Get protocol specific data for PF update ramrod command.
 352  */
 353 static int
 354 qed_dcbx_process_mib_info(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 355 {
 356         struct dcbx_app_priority_feature *p_app;
 357         struct dcbx_app_priority_entry *p_tbl;
 358         struct qed_dcbx_results data = { 0 };
 359         struct dcbx_ets_feature *p_ets;
 360         struct qed_hw_info *p_info;
 361         u32 pri_tc_tbl, flags;
 362         u8 dcbx_version;
 363         int num_entries;
 364         int rc = 0;
 365
 366         flags = p_hwfn->p_dcbx_info->operational.flags;
 367         dcbx_version = QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION);
 368
 369         p_app = &p_hwfn->p_dcbx_info->operational.features.app;
 370         p_tbl = p_app->app_pri_tbl;
 371
 372         p_ets = &p_hwfn->p_dcbx_info->operational.features.ets;
 373         pri_tc_tbl = p_ets->pri_tc_tbl[0];
 374
 375         p_info = &p_hwfn->hw_info;
 376         num_entries = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_NUM_ENTRIES);
 377
 378         rc = qed_dcbx_process_tlv(p_hwfn, p_ptt, &data, p_tbl, pri_tc_tbl,
 379                                   num_entries, dcbx_version);
 380         if (rc)
 381                 return rc;
 382
 383         p_info->num_active_tc = QED_MFW_GET_FIELD(p_ets->flags,
 384                                                   DCBX_ETS_MAX_TCS);
 385         p_hwfn->qm_info.ooo_tc = QED_MFW_GET_FIELD(p_ets->flags, DCBX_OOO_TC);
 386         data.pf_id = p_hwfn->rel_pf_id;
 387         data.dcbx_enabled = !!dcbx_version;
 388
 389         qed_dcbx_dp_protocol(p_hwfn, &data);
 390
 391         memcpy(&p_hwfn->p_dcbx_info->results, &data,
 392                sizeof(struct qed_dcbx_results));
 393
 394         return 0;
 395 }
 396
 397 static int
 398 qed_dcbx_copy_mib(struct qed_hwfn *p_hwfn,
 399                   struct qed_ptt *p_ptt,
 400                   struct qed_dcbx_mib_meta_data *p_data,
 401                   enum qed_mib_read_type type)
 402 {
 403         u32 prefix_seq_num, suffix_seq_num;
 404         int read_count = 0;
 405         int rc = 0;
 406
 407         /* The data is considered to be valid only if both sequence numbers are
 408          * the same.
 409          */
 410         do {
 411                 if (type == QED_DCBX_REMOTE_LLDP_MIB) {
 412                         qed_memcpy_from(p_hwfn, p_ptt, p_data->lldp_remote,
 413                                         p_data->addr, p_data->size);
 414                         prefix_seq_num = p_data->lldp_remote->prefix_seq_num;
 415                         suffix_seq_num = p_data->lldp_remote->suffix_seq_num;
 416                 } else {
 417                         qed_memcpy_from(p_hwfn, p_ptt, p_data->mib,
 418                                         p_data->addr, p_data->size);
 419                         prefix_seq_num = p_data->mib->prefix_seq_num;
 420                         suffix_seq_num = p_data->mib->suffix_seq_num;
 421                 }
 422                 read_count++;
 423
 424                 DP_VERBOSE(p_hwfn,
 425                            QED_MSG_DCB,
 426                            "mib type = %d, try count = %d prefix seq num  = %d suffix seq num = %d\n",
 427                            type, read_count, prefix_seq_num, suffix_seq_num);
 428         } while ((prefix_seq_num != suffix_seq_num) &&
 429                  (read_count < QED_DCBX_MAX_MIB_READ_TRY));
 430
 431         if (read_count >= QED_DCBX_MAX_MIB_READ_TRY) {
 432                 DP_ERR(p_hwfn,
 433                        "MIB read err, mib type = %d, try count = %d prefix seq num = %d suffix seq num = %d\n",
 434                        type, read_count, prefix_seq_num, suffix_seq_num);
 435                 rc = -EIO;
 436         }
 437
 438         return rc;
 439 }
 440
 441 static void
 442 qed_dcbx_get_priority_info(struct qed_hwfn *p_hwfn,
 443                            struct qed_dcbx_app_prio *p_prio,
 444                            struct qed_dcbx_results *p_results)
 445 {
 446         u8 val;
 447
 448         p_prio->roce = QED_DCBX_INVALID_PRIORITY;
 449         p_prio->roce_v2 = QED_DCBX_INVALID_PRIORITY;
 450         p_prio->iscsi = QED_DCBX_INVALID_PRIORITY;
 451         p_prio->fcoe = QED_DCBX_INVALID_PRIORITY;
 452
 453         if (p_results->arr[DCBX_PROTOCOL_ROCE].update &&
 454             p_results->arr[DCBX_PROTOCOL_ROCE].enable)
 455                 p_prio->roce = p_results->arr[DCBX_PROTOCOL_ROCE].priority;
 456
 457         if (p_results->arr[DCBX_PROTOCOL_ROCE_V2].update &&
 458             p_results->arr[DCBX_PROTOCOL_ROCE_V2].enable) {
 459                 val = p_results->arr[DCBX_PROTOCOL_ROCE_V2].priority;
 460                 p_prio->roce_v2 = val;
 461         }
 462
 463         if (p_results->arr[DCBX_PROTOCOL_ISCSI].update &&
 464             p_results->arr[DCBX_PROTOCOL_ISCSI].enable)
 465                 p_prio->iscsi = p_results->arr[DCBX_PROTOCOL_ISCSI].priority;
 466
 467         if (p_results->arr[DCBX_PROTOCOL_FCOE].update &&
 468             p_results->arr[DCBX_PROTOCOL_FCOE].enable)
 469                 p_prio->fcoe = p_results->arr[DCBX_PROTOCOL_FCOE].priority;
 470
 471         if (p_results->arr[DCBX_PROTOCOL_ETH].update &&
 472             p_results->arr[DCBX_PROTOCOL_ETH].enable)
 473                 p_prio->eth = p_results->arr[DCBX_PROTOCOL_ETH].priority;
 474
 475         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 476                    "Priorities: iscsi %d, roce %d, roce v2 %d, fcoe %d, eth %d\n",
 477                    p_prio->iscsi, p_prio->roce, p_prio->roce_v2, p_prio->fcoe,
 478                    p_prio->eth);
 479 }
 480
 481 static void
 482 qed_dcbx_get_app_data(struct qed_hwfn *p_hwfn,
 483                       struct dcbx_app_priority_feature *p_app,
 484                       struct dcbx_app_priority_entry *p_tbl,
 485                       struct qed_dcbx_params *p_params, bool ieee)
 486 {
 487         struct qed_app_entry *entry;
 488         u8 pri_map;
 489         int i;
 490
 491         p_params->app_willing = QED_MFW_GET_FIELD(p_app->flags,
 492                                                   DCBX_APP_WILLING);
 493         p_params->app_valid = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_ENABLED);
 494         p_params->app_error = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_ERROR);
 495         p_params->num_app_entries = QED_MFW_GET_FIELD(p_app->flags,
 496                                                       DCBX_APP_NUM_ENTRIES);
 497         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
 498                 entry = &p_params->app_entry[i];
 499                 if (ieee) {
 500                         u8 sf_ieee;
 501                         u32 val;
 502
 503                         sf_ieee = QED_MFW_GET_FIELD(p_tbl[i].entry,
 504                                                     DCBX_APP_SF_IEEE);
 505                         switch (sf_ieee) {
 506                         case DCBX_APP_SF_IEEE_RESERVED:
 507                                 /* Old MFW */
 508                                 val = QED_MFW_GET_FIELD(p_tbl[i].entry,
 509                                                         DCBX_APP_SF);
 510                                 entry->sf_ieee = val ?
 511                                     QED_DCBX_SF_IEEE_TCP_UDP_PORT :
 512                                     QED_DCBX_SF_IEEE_ETHTYPE;
 513                                 break;
 514                         case DCBX_APP_SF_IEEE_ETHTYPE:
 515                                 entry->sf_ieee = QED_DCBX_SF_IEEE_ETHTYPE;
 516                                 break;
 517                         case DCBX_APP_SF_IEEE_TCP_PORT:
 518                                 entry->sf_ieee = QED_DCBX_SF_IEEE_TCP_PORT;
 519                                 break;
 520                         case DCBX_APP_SF_IEEE_UDP_PORT:
 521                                 entry->sf_ieee = QED_DCBX_SF_IEEE_UDP_PORT;
 522                                 break;
 523                         case DCBX_APP_SF_IEEE_TCP_UDP_PORT:
 524                                 entry->sf_ieee = QED_DCBX_SF_IEEE_TCP_UDP_PORT;
 525                                 break;
 526                         }
 527                 } else {
 528                         entry->ethtype = !(QED_MFW_GET_FIELD(p_tbl[i].entry,
 529                                                              DCBX_APP_SF));
 530                 }
 531
 532                 pri_map = QED_MFW_GET_FIELD(p_tbl[i].entry, DCBX_APP_PRI_MAP);
 533                 entry->prio = ffs(pri_map) - 1;
 534                 entry->proto_id = QED_MFW_GET_FIELD(p_tbl[i].entry,
 535                                                     DCBX_APP_PROTOCOL_ID);
 536                 qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
 537                                                entry->proto_id,
 538                                                &entry->proto_type, ieee);
 539         }
 540
 541         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 542                    "APP params: willing %d, valid %d error = %d\n",
 543                    p_params->app_willing, p_params->app_valid,
 544                    p_params->app_error);
 545 }
 546
 547 static void
 548 qed_dcbx_get_pfc_data(struct qed_hwfn *p_hwfn,
 549                       u32 pfc, struct qed_dcbx_params *p_params)
 550 {
 551         u8 pfc_map;
 552
 553         p_params->pfc.willing = QED_MFW_GET_FIELD(pfc, DCBX_PFC_WILLING);
 554         p_params->pfc.max_tc = QED_MFW_GET_FIELD(pfc, DCBX_PFC_CAPS);
 555         p_params->pfc.enabled = QED_MFW_GET_FIELD(pfc, DCBX_PFC_ENABLED);
 556         pfc_map = QED_MFW_GET_FIELD(pfc, DCBX_PFC_PRI_EN_BITMAP);
 557         p_params->pfc.prio[0] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_0);
 558         p_params->pfc.prio[1] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_1);
 559         p_params->pfc.prio[2] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_2);
 560         p_params->pfc.prio[3] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_3);
 561         p_params->pfc.prio[4] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_4);
 562         p_params->pfc.prio[5] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_5);
 563         p_params->pfc.prio[6] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_6);
 564         p_params->pfc.prio[7] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_7);
 565
 566         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 567                    "PFC params: willing %d, pfc_bitmap %u max_tc = %u enabled = %d\n",
 568                    p_params->pfc.willing, pfc_map, p_params->pfc.max_tc,
 569                    p_params->pfc.enabled);
 570 }
 571
 572 static void
 573 qed_dcbx_get_ets_data(struct qed_hwfn *p_hwfn,
 574                       struct dcbx_ets_feature *p_ets,
 575                       struct qed_dcbx_params *p_params)
 576 {
 577         u32 bw_map[2], tsa_map[2], pri_map;
 578         int i;
 579
 580         p_params->ets_willing = QED_MFW_GET_FIELD(p_ets->flags,
 581                                                   DCBX_ETS_WILLING);
 582         p_params->ets_enabled = QED_MFW_GET_FIELD(p_ets->flags,
 583                                                   DCBX_ETS_ENABLED);
 584         p_params->ets_cbs = QED_MFW_GET_FIELD(p_ets->flags, DCBX_ETS_CBS);
 585         p_params->max_ets_tc = QED_MFW_GET_FIELD(p_ets->flags,
 586                                                  DCBX_ETS_MAX_TCS);
 587         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 588                    "ETS params: willing %d, enabled = %d ets_cbs %d pri_tc_tbl_0 %x max_ets_tc %d\n",
 589                    p_params->ets_willing, p_params->ets_enabled,
 590                    p_params->ets_cbs, p_ets->pri_tc_tbl[0],
 591                    p_params->max_ets_tc);
 592
 593         if (p_params->ets_enabled && !p_params->max_ets_tc) {
 594                 p_params->max_ets_tc = QED_MAX_PFC_PRIORITIES;
 595                 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 596                            "ETS params: max_ets_tc is forced to %d\n",
 597                 p_params->max_ets_tc);
 598         }
 599
 600         /* 8 bit tsa and bw data corresponding to each of the 8 TC's are
 601          * encoded in a type u32 array of size 2.
 602          */
 603         bw_map[0] = be32_to_cpu(p_ets->tc_bw_tbl[0]);
 604         bw_map[1] = be32_to_cpu(p_ets->tc_bw_tbl[1]);
 605         tsa_map[0] = be32_to_cpu(p_ets->tc_tsa_tbl[0]);
 606         tsa_map[1] = be32_to_cpu(p_ets->tc_tsa_tbl[1]);
 607         pri_map = p_ets->pri_tc_tbl[0];
 608         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
 609                 p_params->ets_tc_bw_tbl[i] = ((u8 *)bw_map)[i];
 610                 p_params->ets_tc_tsa_tbl[i] = ((u8 *)tsa_map)[i];
 611                 p_params->ets_pri_tc_tbl[i] = QED_DCBX_PRIO2TC(pri_map, i);
 612                 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 613                            "elem %d  bw_tbl %x tsa_tbl %x\n",
 614                            i, p_params->ets_tc_bw_tbl[i],
 615                            p_params->ets_tc_tsa_tbl[i]);
 616         }
 617 }
 618
 619 static void
 620 qed_dcbx_get_common_params(struct qed_hwfn *p_hwfn,
 621                            struct dcbx_app_priority_feature *p_app,
 622                            struct dcbx_app_priority_entry *p_tbl,
 623                            struct dcbx_ets_feature *p_ets,
 624                            u32 pfc, struct qed_dcbx_params *p_params, bool ieee)
 625 {
 626         qed_dcbx_get_app_data(p_hwfn, p_app, p_tbl, p_params, ieee);
 627         qed_dcbx_get_ets_data(p_hwfn, p_ets, p_params);
 628         qed_dcbx_get_pfc_data(p_hwfn, pfc, p_params);
 629 }
 630
 631 static void
 632 qed_dcbx_get_local_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *params)
 633 {
 634         struct dcbx_features *p_feat;
 635
 636         p_feat = &p_hwfn->p_dcbx_info->local_admin.features;
 637         qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
 638                                    p_feat->app.app_pri_tbl, &p_feat->ets,
 639                                    p_feat->pfc, &params->local.params, false);
 640         params->local.valid = true;
 641 }
 642
 643 static void
 644 qed_dcbx_get_remote_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *params)
 645 {
 646         struct dcbx_features *p_feat;
 647
 648         p_feat = &p_hwfn->p_dcbx_info->remote.features;
 649         qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
 650                                    p_feat->app.app_pri_tbl, &p_feat->ets,
 651                                    p_feat->pfc, &params->remote.params, false);
 652         params->remote.valid = true;
 653 }
 654
 655 static void
 656 qed_dcbx_get_operational_params(struct qed_hwfn *p_hwfn,
 657                                 struct qed_dcbx_get *params)
 658 {
 659         struct qed_dcbx_operational_params *p_operational;
 660         struct qed_dcbx_results *p_results;
 661         struct dcbx_features *p_feat;
 662         bool enabled, err;
 663         u32 flags;
 664         bool val;
 665
 666         flags = p_hwfn->p_dcbx_info->operational.flags;
 667
 668         /* If DCBx version is non zero, then negotiation
 669          * was successfuly performed
 670          */
 671         p_operational = &params->operational;
 672         enabled = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) !=
 673                      DCBX_CONFIG_VERSION_DISABLED);
 674         if (!enabled) {
 675                 p_operational->enabled = enabled;
 676                 p_operational->valid = false;
 677                 DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Dcbx is disabled\n");
 678                 return;
 679         }
 680
 681         p_feat = &p_hwfn->p_dcbx_info->operational.features;
 682         p_results = &p_hwfn->p_dcbx_info->results;
 683
 684         val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
 685                  DCBX_CONFIG_VERSION_IEEE);
 686         p_operational->ieee = val;
 687         val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
 688                  DCBX_CONFIG_VERSION_CEE);
 689         p_operational->cee = val;
 690
 691         val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
 692                  DCBX_CONFIG_VERSION_STATIC);
 693         p_operational->local = val;
 694
 695         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 696                    "Version support: ieee %d, cee %d, static %d\n",
 697                    p_operational->ieee, p_operational->cee,
 698                    p_operational->local);
 699
 700         qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
 701                                    p_feat->app.app_pri_tbl, &p_feat->ets,
 702                                    p_feat->pfc, &params->operational.params,
 703                                    p_operational->ieee);
 704         qed_dcbx_get_priority_info(p_hwfn, &p_operational->app_prio, p_results);
 705         err = QED_MFW_GET_FIELD(p_feat->app.flags, DCBX_APP_ERROR);
 706         p_operational->err = err;
 707         p_operational->enabled = enabled;
 708         p_operational->valid = true;
 709 }
 710
 711 static void
 712 qed_dcbx_get_local_lldp_params(struct qed_hwfn *p_hwfn,
 713                                struct qed_dcbx_get *params)
 714 {
 715         struct lldp_config_params_s *p_local;
 716
 717         p_local = &p_hwfn->p_dcbx_info->lldp_local[LLDP_NEAREST_BRIDGE];
 718
 719         memcpy(params->lldp_local.local_chassis_id, p_local->local_chassis_id,
 720                sizeof(p_local->local_chassis_id));
 721         memcpy(params->lldp_local.local_port_id, p_local->local_port_id,
 722                sizeof(p_local->local_port_id));
 723 }
 724
 725 static void
 726 qed_dcbx_get_remote_lldp_params(struct qed_hwfn *p_hwfn,
 727                                 struct qed_dcbx_get *params)
 728 {
 729         struct lldp_status_params_s *p_remote;
 730
 731         p_remote = &p_hwfn->p_dcbx_info->lldp_remote[LLDP_NEAREST_BRIDGE];
 732
 733         memcpy(params->lldp_remote.peer_chassis_id, p_remote->peer_chassis_id,
 734                sizeof(p_remote->peer_chassis_id));
 735         memcpy(params->lldp_remote.peer_port_id, p_remote->peer_port_id,
 736                sizeof(p_remote->peer_port_id));
 737 }
 738
 739 static int
 740 qed_dcbx_get_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *p_params,
 741                     enum qed_mib_read_type type)
 742 {
 743         switch (type) {
 744         case QED_DCBX_REMOTE_MIB:
 745                 qed_dcbx_get_remote_params(p_hwfn, p_params);
 746                 break;
 747         case QED_DCBX_LOCAL_MIB:
 748                 qed_dcbx_get_local_params(p_hwfn, p_params);
 749                 break;
 750         case QED_DCBX_OPERATIONAL_MIB:
 751                 qed_dcbx_get_operational_params(p_hwfn, p_params);
 752                 break;
 753         case QED_DCBX_REMOTE_LLDP_MIB:
 754                 qed_dcbx_get_remote_lldp_params(p_hwfn, p_params);
 755                 break;
 756         case QED_DCBX_LOCAL_LLDP_MIB:
 757                 qed_dcbx_get_local_lldp_params(p_hwfn, p_params);
 758                 break;
 759         default:
 760                 DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
 761                 return -EINVAL;
 762         }
 763
 764         return 0;
 765 }
 766
 767 static int
 768 qed_dcbx_read_local_lldp_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 769 {
 770         struct qed_dcbx_mib_meta_data data;
 771         int rc = 0;
 772
 773         memset(&data, 0, sizeof(data));
 774         data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
 775                                                            lldp_config_params);
 776         data.lldp_local = p_hwfn->p_dcbx_info->lldp_local;
 777         data.size = sizeof(struct lldp_config_params_s);
 778         qed_memcpy_from(p_hwfn, p_ptt, data.lldp_local, data.addr, data.size);
 779
 780         return rc;
 781 }
 782
 783 static int
 784 qed_dcbx_read_remote_lldp_mib(struct qed_hwfn *p_hwfn,
 785                               struct qed_ptt *p_ptt,
 786                               enum qed_mib_read_type type)
 787 {
 788         struct qed_dcbx_mib_meta_data data;
 789         int rc = 0;
 790
 791         memset(&data, 0, sizeof(data));
 792         data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
 793                                                            lldp_status_params);
 794         data.lldp_remote = p_hwfn->p_dcbx_info->lldp_remote;
 795         data.size = sizeof(struct lldp_status_params_s);
 796         rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 797
 798         return rc;
 799 }
 800
 801 static int
 802 qed_dcbx_read_operational_mib(struct qed_hwfn *p_hwfn,
 803                               struct qed_ptt *p_ptt,
 804                               enum qed_mib_read_type type)
 805 {
 806         struct qed_dcbx_mib_meta_data data;
 807         int rc = 0;
 808
 809         memset(&data, 0, sizeof(data));
 810         data.addr = p_hwfn->mcp_info->port_addr +
 811                     offsetof(struct public_port, operational_dcbx_mib);
 812         data.mib = &p_hwfn->p_dcbx_info->operational;
 813         data.size = sizeof(struct dcbx_mib);
 814         rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 815
 816         return rc;
 817 }
 818
 819 static int
 820 qed_dcbx_read_remote_mib(struct qed_hwfn *p_hwfn,
 821                          struct qed_ptt *p_ptt, enum qed_mib_read_type type)
 822 {
 823         struct qed_dcbx_mib_meta_data data;
 824         int rc = 0;
 825
 826         memset(&data, 0, sizeof(data));
 827         data.addr = p_hwfn->mcp_info->port_addr +
 828                     offsetof(struct public_port, remote_dcbx_mib);
 829         data.mib = &p_hwfn->p_dcbx_info->remote;
 830         data.size = sizeof(struct dcbx_mib);
 831         rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 832
 833         return rc;
 834 }
 835
 836 static int
 837 qed_dcbx_read_local_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 838 {
 839         struct qed_dcbx_mib_meta_data data;
 840         int rc = 0;
 841
 842         memset(&data, 0, sizeof(data));
 843         data.addr = p_hwfn->mcp_info->port_addr +
 844                     offsetof(struct public_port, local_admin_dcbx_mib);
 845         data.local_admin = &p_hwfn->p_dcbx_info->local_admin;
 846         data.size = sizeof(struct dcbx_local_params);
 847         qed_memcpy_from(p_hwfn, p_ptt, data.local_admin, data.addr, data.size);
 848
 849         return rc;
 850 }
 851
 852 static int qed_dcbx_read_mib(struct qed_hwfn *p_hwfn,
 853                              struct qed_ptt *p_ptt, enum qed_mib_read_type type)
 854 {
 855         int rc = -EINVAL;
 856
 857         switch (type) {
 858         case QED_DCBX_OPERATIONAL_MIB:
 859                 rc = qed_dcbx_read_operational_mib(p_hwfn, p_ptt, type);
 860                 break;
 861         case QED_DCBX_REMOTE_MIB:
 862                 rc = qed_dcbx_read_remote_mib(p_hwfn, p_ptt, type);
 863                 break;
 864         case QED_DCBX_LOCAL_MIB:
 865                 rc = qed_dcbx_read_local_mib(p_hwfn, p_ptt);
 866                 break;
 867         case QED_DCBX_REMOTE_LLDP_MIB:
 868                 rc = qed_dcbx_read_remote_lldp_mib(p_hwfn, p_ptt, type);
 869                 break;
 870         case QED_DCBX_LOCAL_LLDP_MIB:
 871                 rc = qed_dcbx_read_local_lldp_mib(p_hwfn, p_ptt);
 872                 break;
 873         default:
 874                 DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
 875         }
 876
 877         return rc;
 878 }
 879
 880 static void qed_dcbx_aen(struct qed_hwfn *hwfn, u32 mib_type)
 881 {
 882         struct qed_common_cb_ops *op = hwfn->cdev->protocol_ops.common;
 883         void *cookie = hwfn->cdev->ops_cookie;
 884
 885         if (cookie && op->dcbx_aen)
 886                 op->dcbx_aen(cookie, &hwfn->p_dcbx_info->get, mib_type);
 887 }
 888
 889 /* Read updated MIB.
 890  * Reconfigure QM and invoke PF update ramrod command if operational MIB
 891  * change is detected.
 892  */
 893 int
 894 qed_dcbx_mib_update_event(struct qed_hwfn *p_hwfn,
 895                           struct qed_ptt *p_ptt, enum qed_mib_read_type type)
 896 {
 897         int rc = 0;
 898
 899         rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type);
 900         if (rc)
 901                 return rc;
 902
 903         if (type == QED_DCBX_OPERATIONAL_MIB) {
 904                 rc = qed_dcbx_process_mib_info(p_hwfn, p_ptt);
 905                 if (!rc) {
 906                         /* reconfigure tcs of QM queues according
 907                          * to negotiation results
 908                          */
 909                         qed_qm_reconf(p_hwfn, p_ptt);
 910
 911                         /* update storm FW with negotiation results */
 912                         qed_sp_pf_update(p_hwfn);
 913
 914                         /* for roce PFs, we may want to enable/disable DPM
 915                          * when DCBx change occurs
 916                          */
 917                         if (p_hwfn->hw_info.personality ==
 918                             QED_PCI_ETH_ROCE)
 919                                 qed_roce_dpm_dcbx(p_hwfn, p_ptt);
 920                 }
 921         }
 922
 923         qed_dcbx_get_params(p_hwfn, &p_hwfn->p_dcbx_info->get, type);
 924
 925         if (type == QED_DCBX_OPERATIONAL_MIB) {
 926                 struct qed_dcbx_results *p_data;
 927                 u16 val;
 928
 929                 /* Configure in NIG which protocols support EDPM and should
 930                  * honor PFC.
 931                  */
 932                 p_data = &p_hwfn->p_dcbx_info->results;
 933                 val = (0x1 << p_data->arr[DCBX_PROTOCOL_ROCE].tc) |
 934                       (0x1 << p_data->arr[DCBX_PROTOCOL_ROCE_V2].tc);
 935                 val <<= NIG_REG_TX_EDPM_CTRL_TX_EDPM_TC_EN_SHIFT;
 936                 val |= NIG_REG_TX_EDPM_CTRL_TX_EDPM_EN;
 937                 qed_wr(p_hwfn, p_ptt, NIG_REG_TX_EDPM_CTRL, val);
 938         }
 939
 940         qed_dcbx_aen(p_hwfn, type);
 941
 942         return rc;
 943 }
 944
 945 int qed_dcbx_info_alloc(struct qed_hwfn *p_hwfn)
 946 {
 947         p_hwfn->p_dcbx_info = kzalloc(sizeof(*p_hwfn->p_dcbx_info), GFP_KERNEL);
 948         if (!p_hwfn->p_dcbx_info)
 949                 return -ENOMEM;
 950
 951         return 0;
 952 }
 953
 954 void qed_dcbx_info_free(struct qed_hwfn *p_hwfn)
 955 {
 956         kfree(p_hwfn->p_dcbx_info);
 957         p_hwfn->p_dcbx_info = NULL;
 958 }
 959
 960 static void qed_dcbx_update_protocol_data(struct protocol_dcb_data *p_data,
 961                                           struct qed_dcbx_results *p_src,
 962                                           enum dcbx_protocol_type type)
 963 {
 964         p_data->dcb_enable_flag = p_src->arr[type].enable;
 965         p_data->dcb_priority = p_src->arr[type].priority;
 966         p_data->dcb_tc = p_src->arr[type].tc;
 967         p_data->dcb_dont_add_vlan0 = p_src->arr[type].dont_add_vlan0;
 968 }
 969
 970 /* Set pf update ramrod command params */
 971 void qed_dcbx_set_pf_update_params(struct qed_dcbx_results *p_src,
 972                                    struct pf_update_ramrod_data *p_dest)
 973 {
 974         struct protocol_dcb_data *p_dcb_data;
 975         u8 update_flag;
 976
 977         update_flag = p_src->arr[DCBX_PROTOCOL_FCOE].update;
 978         p_dest->update_fcoe_dcb_data_mode = update_flag;
 979
 980         update_flag = p_src->arr[DCBX_PROTOCOL_ROCE].update;
 981         p_dest->update_roce_dcb_data_mode = update_flag;
 982
 983         update_flag = p_src->arr[DCBX_PROTOCOL_ROCE_V2].update;
 984         p_dest->update_rroce_dcb_data_mode = update_flag;
 985
 986         update_flag = p_src->arr[DCBX_PROTOCOL_ISCSI].update;
 987         p_dest->update_iscsi_dcb_data_mode = update_flag;
 988         update_flag = p_src->arr[DCBX_PROTOCOL_ETH].update;
 989         p_dest->update_eth_dcb_data_mode = update_flag;
 990
 991         p_dcb_data = &p_dest->fcoe_dcb_data;
 992         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_FCOE);
 993         p_dcb_data = &p_dest->roce_dcb_data;
 994         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ROCE);
 995         p_dcb_data = &p_dest->rroce_dcb_data;
 996         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ROCE_V2);
 997         p_dcb_data = &p_dest->iscsi_dcb_data;
 998         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ISCSI);
 999         p_dcb_data = &p_dest->eth_dcb_data;
1000         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ETH);
1001 }
1002
1003 u8 qed_dcbx_get_priority_tc(struct qed_hwfn *p_hwfn, u8 pri)
1004 {
1005         struct qed_dcbx_get *dcbx_info = &p_hwfn->p_dcbx_info->get;
1006
1007         if (pri >= QED_MAX_PFC_PRIORITIES) {
1008                 DP_ERR(p_hwfn, "Invalid priority %d\n", pri);
1009                 return QED_DCBX_DEFAULT_TC;
1010         }
1011
1012         if (!dcbx_info->operational.valid) {
1013                 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
1014                            "Dcbx parameters not available\n");
1015                 return QED_DCBX_DEFAULT_TC;
1016         }
1017
1018         return dcbx_info->operational.params.ets_pri_tc_tbl[pri];
1019 }
1020
1021 #ifdef CONFIG_DCB
1022 static int qed_dcbx_query_params(struct qed_hwfn *p_hwfn,
1023                                  struct qed_dcbx_get *p_get,
1024                                  enum qed_mib_read_type type)
1025 {
1026         struct qed_ptt *p_ptt;
1027         int rc;
1028
1029         if (IS_VF(p_hwfn->cdev))
1030                 return -EINVAL;
1031
1032         p_ptt = qed_ptt_acquire(p_hwfn);
1033         if (!p_ptt)
1034                 return -EBUSY;
1035
1036         rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type);
1037         if (rc)
1038                 goto out;
1039
1040         rc = qed_dcbx_get_params(p_hwfn, p_get, type);
1041
1042 out:
1043         qed_ptt_release(p_hwfn, p_ptt);
1044         return rc;
1045 }
1046
1047 static void
1048 qed_dcbx_set_pfc_data(struct qed_hwfn *p_hwfn,
1049                       u32 *pfc, struct qed_dcbx_params *p_params)
1050 {
1051         u8 pfc_map = 0;
1052         int i;
1053
1054         *pfc &= ~DCBX_PFC_ERROR_MASK;
1055
1056         if (p_params->pfc.willing)
1057                 *pfc |= DCBX_PFC_WILLING_MASK;
1058         else
1059                 *pfc &= ~DCBX_PFC_WILLING_MASK;
1060
1061         if (p_params->pfc.enabled)
1062                 *pfc |= DCBX_PFC_ENABLED_MASK;
1063         else
1064                 *pfc &= ~DCBX_PFC_ENABLED_MASK;
1065
1066         *pfc &= ~DCBX_PFC_CAPS_MASK;
1067         *pfc |= (u32)p_params->pfc.max_tc << DCBX_PFC_CAPS_SHIFT;
1068
1069         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
1070                 if (p_params->pfc.prio[i])
1071                         pfc_map |= BIT(i);
1072
1073         *pfc &= ~DCBX_PFC_PRI_EN_BITMAP_MASK;
1074         *pfc |= (pfc_map << DCBX_PFC_PRI_EN_BITMAP_SHIFT);
1075
1076         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "pfc = 0x%x\n", *pfc);
1077 }
1078
1079 static void
1080 qed_dcbx_set_ets_data(struct qed_hwfn *p_hwfn,
1081                       struct dcbx_ets_feature *p_ets,
1082                       struct qed_dcbx_params *p_params)
1083 {
1084         u8 *bw_map, *tsa_map;
1085         u32 val;
1086         int i;
1087
1088         if (p_params->ets_willing)
1089                 p_ets->flags |= DCBX_ETS_WILLING_MASK;
1090         else
1091                 p_ets->flags &= ~DCBX_ETS_WILLING_MASK;
1092
1093         if (p_params->ets_cbs)
1094                 p_ets->flags |= DCBX_ETS_CBS_MASK;
1095         else
1096                 p_ets->flags &= ~DCBX_ETS_CBS_MASK;
1097
1098         if (p_params->ets_enabled)
1099                 p_ets->flags |= DCBX_ETS_ENABLED_MASK;
1100         else
1101                 p_ets->flags &= ~DCBX_ETS_ENABLED_MASK;
1102
1103         p_ets->flags &= ~DCBX_ETS_MAX_TCS_MASK;
1104         p_ets->flags |= (u32)p_params->max_ets_tc << DCBX_ETS_MAX_TCS_SHIFT;
1105
1106         bw_map = (u8 *)&p_ets->tc_bw_tbl[0];
1107         tsa_map = (u8 *)&p_ets->tc_tsa_tbl[0];
1108         p_ets->pri_tc_tbl[0] = 0;
1109         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
1110                 bw_map[i] = p_params->ets_tc_bw_tbl[i];
1111                 tsa_map[i] = p_params->ets_tc_tsa_tbl[i];
1112                 /* Copy the priority value to the corresponding 4 bits in the
1113                  * traffic class table.
1114                  */
1115                 val = (((u32)p_params->ets_pri_tc_tbl[i]) << ((7 - i) * 4));
1116                 p_ets->pri_tc_tbl[0] |= val;
1117         }
1118         for (i = 0; i < 2; i++) {
1119                 p_ets->tc_bw_tbl[i] = cpu_to_be32(p_ets->tc_bw_tbl[i]);
1120                 p_ets->tc_tsa_tbl[i] = cpu_to_be32(p_ets->tc_tsa_tbl[i]);
1121         }
1122 }
1123
1124 static void
1125 qed_dcbx_set_app_data(struct qed_hwfn *p_hwfn,
1126                       struct dcbx_app_priority_feature *p_app,
1127                       struct qed_dcbx_params *p_params, bool ieee)
1128 {
1129         u32 *entry;
1130         int i;
1131
1132         if (p_params->app_willing)
1133                 p_app->flags |= DCBX_APP_WILLING_MASK;
1134         else
1135                 p_app->flags &= ~DCBX_APP_WILLING_MASK;
1136
1137         if (p_params->app_valid)
1138                 p_app->flags |= DCBX_APP_ENABLED_MASK;
1139         else
1140                 p_app->flags &= ~DCBX_APP_ENABLED_MASK;
1141
1142         p_app->flags &= ~DCBX_APP_NUM_ENTRIES_MASK;
1143         p_app->flags |= (u32)p_params->num_app_entries <<
1144             DCBX_APP_NUM_ENTRIES_SHIFT;
1145
1146         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
1147                 entry = &p_app->app_pri_tbl[i].entry;
1148                 *entry = 0;
1149                 if (ieee) {
1150                         *entry &= ~(DCBX_APP_SF_IEEE_MASK | DCBX_APP_SF_MASK);
1151                         switch (p_params->app_entry[i].sf_ieee) {
1152                         case QED_DCBX_SF_IEEE_ETHTYPE:
1153                                 *entry |= ((u32)DCBX_APP_SF_IEEE_ETHTYPE <<
1154                                            DCBX_APP_SF_IEEE_SHIFT);
1155                                 *entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
1156                                            DCBX_APP_SF_SHIFT);
1157                                 break;
1158                         case QED_DCBX_SF_IEEE_TCP_PORT:
1159                                 *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_PORT <<
1160                                            DCBX_APP_SF_IEEE_SHIFT);
1161                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1162                                            DCBX_APP_SF_SHIFT);
1163                                 break;
1164                         case QED_DCBX_SF_IEEE_UDP_PORT:
1165                                 *entry |= ((u32)DCBX_APP_SF_IEEE_UDP_PORT <<
1166                                            DCBX_APP_SF_IEEE_SHIFT);
1167                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1168                                            DCBX_APP_SF_SHIFT);
1169                                 break;
1170                         case QED_DCBX_SF_IEEE_TCP_UDP_PORT:
1171                                 *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_UDP_PORT <<
1172                                            DCBX_APP_SF_IEEE_SHIFT);
1173                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1174                                            DCBX_APP_SF_SHIFT);
1175                                 break;
1176                         }
1177                 } else {
1178                         *entry &= ~DCBX_APP_SF_MASK;
1179                         if (p_params->app_entry[i].ethtype)
1180                                 *entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
1181                                            DCBX_APP_SF_SHIFT);
1182                         else
1183                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1184                                            DCBX_APP_SF_SHIFT);
1185                 }
1186
1187                 *entry &= ~DCBX_APP_PROTOCOL_ID_MASK;
1188                 *entry |= ((u32)p_params->app_entry[i].proto_id <<
1189                            DCBX_APP_PROTOCOL_ID_SHIFT);
1190                 *entry &= ~DCBX_APP_PRI_MAP_MASK;
1191                 *entry |= ((u32)(p_params->app_entry[i].prio) <<
1192                            DCBX_APP_PRI_MAP_SHIFT);
1193         }
1194 }
1195
1196 static void
1197 qed_dcbx_set_local_params(struct qed_hwfn *p_hwfn,
1198                           struct dcbx_local_params *local_admin,
1199                           struct qed_dcbx_set *params)
1200 {
1201         bool ieee = false;
1202
1203         local_admin->flags = 0;
1204         memcpy(&local_admin->features,
1205                &p_hwfn->p_dcbx_info->operational.features,
1206                sizeof(local_admin->features));
1207
1208         if (params->enabled) {
1209                 local_admin->config = params->ver_num;
1210                 ieee = !!(params->ver_num & DCBX_CONFIG_VERSION_IEEE);
1211         } else {
1212                 local_admin->config = DCBX_CONFIG_VERSION_DISABLED;
1213         }
1214
1215         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Dcbx version = %d\n",
1216                    local_admin->config);
1217
1218         if (params->override_flags & QED_DCBX_OVERRIDE_PFC_CFG)
1219                 qed_dcbx_set_pfc_data(p_hwfn, &local_admin->features.pfc,
1220                                       &params->config.params);
1221
1222         if (params->override_flags & QED_DCBX_OVERRIDE_ETS_CFG)
1223                 qed_dcbx_set_ets_data(p_hwfn, &local_admin->features.ets,
1224                                       &params->config.params);
1225
1226         if (params->override_flags & QED_DCBX_OVERRIDE_APP_CFG)
1227                 qed_dcbx_set_app_data(p_hwfn, &local_admin->features.app,
1228                                       &params->config.params, ieee);
1229 }
1230
1231 int qed_dcbx_config_params(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
1232                            struct qed_dcbx_set *params, bool hw_commit)
1233 {
1234         struct dcbx_local_params local_admin;
1235         struct qed_dcbx_mib_meta_data data;
1236         u32 resp = 0, param = 0;
1237         int rc = 0;
1238
1239         if (!hw_commit) {
1240                 memcpy(&p_hwfn->p_dcbx_info->set, params,
1241                        sizeof(struct qed_dcbx_set));
1242                 return 0;
1243         }
1244
1245         /* clear set-parmas cache */
1246         memset(&p_hwfn->p_dcbx_info->set, 0, sizeof(p_hwfn->p_dcbx_info->set));
1247
1248         memset(&local_admin, 0, sizeof(local_admin));
1249         qed_dcbx_set_local_params(p_hwfn, &local_admin, params);
1250
1251         data.addr = p_hwfn->mcp_info->port_addr +
1252             offsetof(struct public_port, local_admin_dcbx_mib);
1253         data.local_admin = &local_admin;
1254         data.size = sizeof(struct dcbx_local_params);
1255         qed_memcpy_to(p_hwfn, p_ptt, data.addr, data.local_admin, data.size);
1256
1257         rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_SET_DCBX,
1258                          1 << DRV_MB_PARAM_LLDP_SEND_SHIFT, &resp, &param);
1259         if (rc)
1260                 DP_NOTICE(p_hwfn, "Failed to send DCBX update request\n");
1261
1262         return rc;
1263 }
1264
1265 int qed_dcbx_get_config_params(struct qed_hwfn *p_hwfn,
1266                                struct qed_dcbx_set *params)
1267 {
1268         struct qed_dcbx_get *dcbx_info;
1269         int rc;
1270
1271         if (p_hwfn->p_dcbx_info->set.config.valid) {
1272                 memcpy(params, &p_hwfn->p_dcbx_info->set,
1273                        sizeof(struct qed_dcbx_set));
1274                 return 0;
1275         }
1276
1277         dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_KERNEL);
1278         if (!dcbx_info)
1279                 return -ENOMEM;
1280
1281         rc = qed_dcbx_query_params(p_hwfn, dcbx_info, QED_DCBX_OPERATIONAL_MIB);
1282         if (rc) {
1283                 kfree(dcbx_info);
1284                 return rc;
1285         }
1286
1287         p_hwfn->p_dcbx_info->set.override_flags = 0;
1288         p_hwfn->p_dcbx_info->set.ver_num = DCBX_CONFIG_VERSION_DISABLED;
1289         if (dcbx_info->operational.cee)
1290                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1291         if (dcbx_info->operational.ieee)
1292                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1293         if (dcbx_info->operational.local)
1294                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_STATIC;
1295
1296         p_hwfn->p_dcbx_info->set.enabled = dcbx_info->operational.enabled;
1297         BUILD_BUG_ON(sizeof(dcbx_info->operational.params) !=
1298                      sizeof(p_hwfn->p_dcbx_info->set.config.params));
1299         memcpy(&p_hwfn->p_dcbx_info->set.config.params,
1300                &dcbx_info->operational.params,
1301                sizeof(p_hwfn->p_dcbx_info->set.config.params));
1302         p_hwfn->p_dcbx_info->set.config.valid = true;
1303
1304         memcpy(params, &p_hwfn->p_dcbx_info->set, sizeof(struct qed_dcbx_set));
1305
1306         kfree(dcbx_info);
1307
1308         return 0;
1309 }
1310
1311 static struct qed_dcbx_get *qed_dcbnl_get_dcbx(struct qed_hwfn *hwfn,
1312                                                enum qed_mib_read_type type)
1313 {
1314         struct qed_dcbx_get *dcbx_info;
1315
1316         dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_ATOMIC);
1317         if (!dcbx_info)
1318                 return NULL;
1319
1320         if (qed_dcbx_query_params(hwfn, dcbx_info, type)) {
1321                 kfree(dcbx_info);
1322                 return NULL;
1323         }
1324
1325         if ((type == QED_DCBX_OPERATIONAL_MIB) &&
1326             !dcbx_info->operational.enabled) {
1327                 DP_INFO(hwfn, "DCBX is not enabled/operational\n");
1328                 kfree(dcbx_info);
1329                 return NULL;
1330         }
1331
1332         return dcbx_info;
1333 }
1334
1335 static u8 qed_dcbnl_getstate(struct qed_dev *cdev)
1336 {
1337         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1338         struct qed_dcbx_get *dcbx_info;
1339         bool enabled;
1340
1341         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1342         if (!dcbx_info)
1343                 return 0;
1344
1345         enabled = dcbx_info->operational.enabled;
1346         DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", enabled);
1347         kfree(dcbx_info);
1348
1349         return enabled;
1350 }
1351
1352 static u8 qed_dcbnl_setstate(struct qed_dev *cdev, u8 state)
1353 {
1354         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1355         struct qed_dcbx_set dcbx_set;
1356         struct qed_ptt *ptt;
1357         int rc;
1358
1359         DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", state);
1360
1361         memset(&dcbx_set, 0, sizeof(dcbx_set));
1362         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1363         if (rc)
1364                 return 1;
1365
1366         dcbx_set.enabled = !!state;
1367
1368         ptt = qed_ptt_acquire(hwfn);
1369         if (!ptt)
1370                 return 1;
1371
1372         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1373
1374         qed_ptt_release(hwfn, ptt);
1375
1376         return rc ? 1 : 0;
1377 }
1378
1379 static void qed_dcbnl_getpgtccfgtx(struct qed_dev *cdev, int tc, u8 *prio_type,
1380                                    u8 *pgid, u8 *bw_pct, u8 *up_map)
1381 {
1382         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1383         struct qed_dcbx_get *dcbx_info;
1384
1385         DP_VERBOSE(hwfn, QED_MSG_DCB, "tc = %d\n", tc);
1386         *prio_type = *pgid = *bw_pct = *up_map = 0;
1387         if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
1388                 DP_INFO(hwfn, "Invalid tc %d\n", tc);
1389                 return;
1390         }
1391
1392         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1393         if (!dcbx_info)
1394                 return;
1395
1396         *pgid = dcbx_info->operational.params.ets_pri_tc_tbl[tc];
1397         kfree(dcbx_info);
1398 }
1399
1400 static void qed_dcbnl_getpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 *bw_pct)
1401 {
1402         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1403         struct qed_dcbx_get *dcbx_info;
1404
1405         *bw_pct = 0;
1406         DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d\n", pgid);
1407         if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
1408                 DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
1409                 return;
1410         }
1411
1412         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1413         if (!dcbx_info)
1414                 return;
1415
1416         *bw_pct = dcbx_info->operational.params.ets_tc_bw_tbl[pgid];
1417         DP_VERBOSE(hwfn, QED_MSG_DCB, "bw_pct = %d\n", *bw_pct);
1418         kfree(dcbx_info);
1419 }
1420
1421 static void qed_dcbnl_getpgtccfgrx(struct qed_dev *cdev, int tc, u8 *prio,
1422                                    u8 *bwg_id, u8 *bw_pct, u8 *up_map)
1423 {
1424         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1425         *prio = *bwg_id = *bw_pct = *up_map = 0;
1426 }
1427
1428 static void qed_dcbnl_getpgbwgcfgrx(struct qed_dev *cdev,
1429                                     int bwg_id, u8 *bw_pct)
1430 {
1431         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1432         *bw_pct = 0;
1433 }
1434
1435 static void qed_dcbnl_getpfccfg(struct qed_dev *cdev,
1436                                 int priority, u8 *setting)
1437 {
1438         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1439         struct qed_dcbx_get *dcbx_info;
1440
1441         DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d\n", priority);
1442         if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
1443                 DP_INFO(hwfn, "Invalid priority %d\n", priority);
1444                 return;
1445         }
1446
1447         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1448         if (!dcbx_info)
1449                 return;
1450
1451         *setting = dcbx_info->operational.params.pfc.prio[priority];
1452         DP_VERBOSE(hwfn, QED_MSG_DCB, "setting = %d\n", *setting);
1453         kfree(dcbx_info);
1454 }
1455
1456 static void qed_dcbnl_setpfccfg(struct qed_dev *cdev, int priority, u8 setting)
1457 {
1458         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1459         struct qed_dcbx_set dcbx_set;
1460         struct qed_ptt *ptt;
1461         int rc;
1462
1463         DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d setting = %d\n",
1464                    priority, setting);
1465         if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
1466                 DP_INFO(hwfn, "Invalid priority %d\n", priority);
1467                 return;
1468         }
1469
1470         memset(&dcbx_set, 0, sizeof(dcbx_set));
1471         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1472         if (rc)
1473                 return;
1474
1475         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1476         dcbx_set.config.params.pfc.prio[priority] = !!setting;
1477
1478         ptt = qed_ptt_acquire(hwfn);
1479         if (!ptt)
1480                 return;
1481
1482         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1483
1484         qed_ptt_release(hwfn, ptt);
1485 }
1486
1487 static u8 qed_dcbnl_getcap(struct qed_dev *cdev, int capid, u8 *cap)
1488 {
1489         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1490         struct qed_dcbx_get *dcbx_info;
1491         int rc = 0;
1492
1493         DP_VERBOSE(hwfn, QED_MSG_DCB, "capid = %d\n", capid);
1494         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1495         if (!dcbx_info)
1496                 return 1;
1497
1498         switch (capid) {
1499         case DCB_CAP_ATTR_PG:
1500         case DCB_CAP_ATTR_PFC:
1501         case DCB_CAP_ATTR_UP2TC:
1502         case DCB_CAP_ATTR_GSP:
1503                 *cap = true;
1504                 break;
1505         case DCB_CAP_ATTR_PG_TCS:
1506         case DCB_CAP_ATTR_PFC_TCS:
1507                 *cap = 0x80;
1508                 break;
1509         case DCB_CAP_ATTR_DCBX:
1510                 *cap = (DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_VER_IEEE |
1511                         DCB_CAP_DCBX_STATIC);
1512                 break;
1513         default:
1514                 *cap = false;
1515                 rc = 1;
1516         }
1517
1518         DP_VERBOSE(hwfn, QED_MSG_DCB, "id = %d caps = %d\n", capid, *cap);
1519         kfree(dcbx_info);
1520
1521         return rc;
1522 }
1523
1524 static int qed_dcbnl_getnumtcs(struct qed_dev *cdev, int tcid, u8 *num)
1525 {
1526         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1527         struct qed_dcbx_get *dcbx_info;
1528         int rc = 0;
1529
1530         DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d\n", tcid);
1531         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1532         if (!dcbx_info)
1533                 return -EINVAL;
1534
1535         switch (tcid) {
1536         case DCB_NUMTCS_ATTR_PG:
1537                 *num = dcbx_info->operational.params.max_ets_tc;
1538                 break;
1539         case DCB_NUMTCS_ATTR_PFC:
1540                 *num = dcbx_info->operational.params.pfc.max_tc;
1541                 break;
1542         default:
1543                 rc = -EINVAL;
1544         }
1545
1546         kfree(dcbx_info);
1547         DP_VERBOSE(hwfn, QED_MSG_DCB, "numtcs = %d\n", *num);
1548
1549         return rc;
1550 }
1551
1552 static u8 qed_dcbnl_getpfcstate(struct qed_dev *cdev)
1553 {
1554         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1555         struct qed_dcbx_get *dcbx_info;
1556         bool enabled;
1557
1558         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1559         if (!dcbx_info)
1560                 return 0;
1561
1562         enabled = dcbx_info->operational.params.pfc.enabled;
1563         DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d\n", enabled);
1564         kfree(dcbx_info);
1565
1566         return enabled;
1567 }
1568
1569 static u8 qed_dcbnl_getdcbx(struct qed_dev *cdev)
1570 {
1571         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1572         struct qed_dcbx_get *dcbx_info;
1573         u8 mode = 0;
1574
1575         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1576         if (!dcbx_info)
1577                 return 0;
1578
1579         if (dcbx_info->operational.ieee)
1580                 mode |= DCB_CAP_DCBX_VER_IEEE;
1581         if (dcbx_info->operational.cee)
1582                 mode |= DCB_CAP_DCBX_VER_CEE;
1583         if (dcbx_info->operational.local)
1584                 mode |= DCB_CAP_DCBX_STATIC;
1585
1586         DP_VERBOSE(hwfn, QED_MSG_DCB, "dcb mode = %d\n", mode);
1587         kfree(dcbx_info);
1588
1589         return mode;
1590 }
1591
1592 static void qed_dcbnl_setpgtccfgtx(struct qed_dev *cdev,
1593                                    int tc,
1594                                    u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
1595 {
1596         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1597         struct qed_dcbx_set dcbx_set;
1598         struct qed_ptt *ptt;
1599         int rc;
1600
1601         DP_VERBOSE(hwfn, QED_MSG_DCB,
1602                    "tc = %d pri_type = %d pgid = %d bw_pct = %d up_map = %d\n",
1603                    tc, pri_type, pgid, bw_pct, up_map);
1604
1605         if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
1606                 DP_INFO(hwfn, "Invalid tc %d\n", tc);
1607                 return;
1608         }
1609
1610         memset(&dcbx_set, 0, sizeof(dcbx_set));
1611         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1612         if (rc)
1613                 return;
1614
1615         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1616         dcbx_set.config.params.ets_pri_tc_tbl[tc] = pgid;
1617
1618         ptt = qed_ptt_acquire(hwfn);
1619         if (!ptt)
1620                 return;
1621
1622         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1623
1624         qed_ptt_release(hwfn, ptt);
1625 }
1626
1627 static void qed_dcbnl_setpgtccfgrx(struct qed_dev *cdev, int prio,
1628                                    u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
1629 {
1630         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1631 }
1632
1633 static void qed_dcbnl_setpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 bw_pct)
1634 {
1635         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1636         struct qed_dcbx_set dcbx_set;
1637         struct qed_ptt *ptt;
1638         int rc;
1639
1640         DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d bw_pct = %d\n", pgid, bw_pct);
1641         if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
1642                 DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
1643                 return;
1644         }
1645
1646         memset(&dcbx_set, 0, sizeof(dcbx_set));
1647         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1648         if (rc)
1649                 return;
1650
1651         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1652         dcbx_set.config.params.ets_tc_bw_tbl[pgid] = bw_pct;
1653
1654         ptt = qed_ptt_acquire(hwfn);
1655         if (!ptt)
1656                 return;
1657
1658         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1659
1660         qed_ptt_release(hwfn, ptt);
1661 }
1662
1663 static void qed_dcbnl_setpgbwgcfgrx(struct qed_dev *cdev, int pgid, u8 bw_pct)
1664 {
1665         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1666 }
1667
1668 static u8 qed_dcbnl_setall(struct qed_dev *cdev)
1669 {
1670         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1671         struct qed_dcbx_set dcbx_set;
1672         struct qed_ptt *ptt;
1673         int rc;
1674
1675         memset(&dcbx_set, 0, sizeof(dcbx_set));
1676         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1677         if (rc)
1678                 return 1;
1679
1680         ptt = qed_ptt_acquire(hwfn);
1681         if (!ptt)
1682                 return 1;
1683
1684         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 1);
1685
1686         qed_ptt_release(hwfn, ptt);
1687
1688         return rc;
1689 }
1690
1691 static int qed_dcbnl_setnumtcs(struct qed_dev *cdev, int tcid, u8 num)
1692 {
1693         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1694         struct qed_dcbx_set dcbx_set;
1695         struct qed_ptt *ptt;
1696         int rc;
1697
1698         DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d num = %d\n", tcid, num);
1699         memset(&dcbx_set, 0, sizeof(dcbx_set));
1700         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1701         if (rc)
1702                 return 1;
1703
1704         switch (tcid) {
1705         case DCB_NUMTCS_ATTR_PG:
1706                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1707                 dcbx_set.config.params.max_ets_tc = num;
1708                 break;
1709         case DCB_NUMTCS_ATTR_PFC:
1710                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1711                 dcbx_set.config.params.pfc.max_tc = num;
1712                 break;
1713         default:
1714                 DP_INFO(hwfn, "Invalid tcid %d\n", tcid);
1715                 return -EINVAL;
1716         }
1717
1718         ptt = qed_ptt_acquire(hwfn);
1719         if (!ptt)
1720                 return -EINVAL;
1721
1722         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1723
1724         qed_ptt_release(hwfn, ptt);
1725
1726         return 0;
1727 }
1728
1729 static void qed_dcbnl_setpfcstate(struct qed_dev *cdev, u8 state)
1730 {
1731         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1732         struct qed_dcbx_set dcbx_set;
1733         struct qed_ptt *ptt;
1734         int rc;
1735
1736         DP_VERBOSE(hwfn, QED_MSG_DCB, "new state = %d\n", state);
1737
1738         memset(&dcbx_set, 0, sizeof(dcbx_set));
1739         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1740         if (rc)
1741                 return;
1742
1743         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1744         dcbx_set.config.params.pfc.enabled = !!state;
1745
1746         ptt = qed_ptt_acquire(hwfn);
1747         if (!ptt)
1748                 return;
1749
1750         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1751
1752         qed_ptt_release(hwfn, ptt);
1753 }
1754
1755 static int qed_dcbnl_getapp(struct qed_dev *cdev, u8 idtype, u16 idval)
1756 {
1757         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1758         struct qed_dcbx_get *dcbx_info;
1759         struct qed_app_entry *entry;
1760         bool ethtype;
1761         u8 prio = 0;
1762         int i;
1763
1764         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1765         if (!dcbx_info)
1766                 return -EINVAL;
1767
1768         ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
1769         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
1770                 entry = &dcbx_info->operational.params.app_entry[i];
1771                 if ((entry->ethtype == ethtype) && (entry->proto_id == idval)) {
1772                         prio = entry->prio;
1773                         break;
1774                 }
1775         }
1776
1777         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
1778                 DP_ERR(cdev, "App entry (%d, %d) not found\n", idtype, idval);
1779                 kfree(dcbx_info);
1780                 return -EINVAL;
1781         }
1782
1783         kfree(dcbx_info);
1784
1785         return prio;
1786 }
1787
1788 static int qed_dcbnl_setapp(struct qed_dev *cdev,
1789                             u8 idtype, u16 idval, u8 pri_map)
1790 {
1791         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1792         struct qed_dcbx_set dcbx_set;
1793         struct qed_app_entry *entry;
1794         struct qed_ptt *ptt;
1795         bool ethtype;
1796         int rc, i;
1797
1798         memset(&dcbx_set, 0, sizeof(dcbx_set));
1799         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1800         if (rc)
1801                 return -EINVAL;
1802
1803         ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
1804         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
1805                 entry = &dcbx_set.config.params.app_entry[i];
1806                 if ((entry->ethtype == ethtype) && (entry->proto_id == idval))
1807                         break;
1808                 /* First empty slot */
1809                 if (!entry->proto_id) {
1810                         dcbx_set.config.params.num_app_entries++;
1811                         break;
1812                 }
1813         }
1814
1815         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
1816                 DP_ERR(cdev, "App table is full\n");
1817                 return -EBUSY;
1818         }
1819
1820         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
1821         dcbx_set.config.params.app_entry[i].ethtype = ethtype;
1822         dcbx_set.config.params.app_entry[i].proto_id = idval;
1823         dcbx_set.config.params.app_entry[i].prio = pri_map;
1824
1825         ptt = qed_ptt_acquire(hwfn);
1826         if (!ptt)
1827                 return -EBUSY;
1828
1829         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1830
1831         qed_ptt_release(hwfn, ptt);
1832
1833         return rc;
1834 }
1835
1836 static u8 qed_dcbnl_setdcbx(struct qed_dev *cdev, u8 mode)
1837 {
1838         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1839         struct qed_dcbx_set dcbx_set;
1840         struct qed_ptt *ptt;
1841         int rc;
1842
1843         DP_VERBOSE(hwfn, QED_MSG_DCB, "new mode = %x\n", mode);
1844
1845         if (!(mode & DCB_CAP_DCBX_VER_IEEE) &&
1846             !(mode & DCB_CAP_DCBX_VER_CEE) && !(mode & DCB_CAP_DCBX_STATIC)) {
1847                 DP_INFO(hwfn, "Allowed modes are cee, ieee or static\n");
1848                 return 1;
1849         }
1850
1851         memset(&dcbx_set, 0, sizeof(dcbx_set));
1852         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1853         if (rc)
1854                 return 1;
1855
1856         dcbx_set.ver_num = 0;
1857         if (mode & DCB_CAP_DCBX_VER_CEE) {
1858                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1859                 dcbx_set.enabled = true;
1860         }
1861
1862         if (mode & DCB_CAP_DCBX_VER_IEEE) {
1863                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1864                 dcbx_set.enabled = true;
1865         }
1866
1867         if (mode & DCB_CAP_DCBX_STATIC) {
1868                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_STATIC;
1869                 dcbx_set.enabled = true;
1870         }
1871
1872         ptt = qed_ptt_acquire(hwfn);
1873         if (!ptt)
1874                 return 1;
1875
1876         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1877
1878         qed_ptt_release(hwfn, ptt);
1879
1880         return rc;
1881 }
1882
1883 static u8 qed_dcbnl_getfeatcfg(struct qed_dev *cdev, int featid, u8 *flags)
1884 {
1885         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1886         struct qed_dcbx_get *dcbx_info;
1887
1888         DP_VERBOSE(hwfn, QED_MSG_DCB, "Feature id  = %d\n", featid);
1889         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1890         if (!dcbx_info)
1891                 return 1;
1892
1893         *flags = 0;
1894         switch (featid) {
1895         case DCB_FEATCFG_ATTR_PG:
1896                 if (dcbx_info->operational.params.ets_enabled)
1897                         *flags = DCB_FEATCFG_ENABLE;
1898                 else
1899                         *flags = DCB_FEATCFG_ERROR;
1900                 break;
1901         case DCB_FEATCFG_ATTR_PFC:
1902                 if (dcbx_info->operational.params.pfc.enabled)
1903                         *flags = DCB_FEATCFG_ENABLE;
1904                 else
1905                         *flags = DCB_FEATCFG_ERROR;
1906                 break;
1907         case DCB_FEATCFG_ATTR_APP:
1908                 if (dcbx_info->operational.params.app_valid)
1909                         *flags = DCB_FEATCFG_ENABLE;
1910                 else
1911                         *flags = DCB_FEATCFG_ERROR;
1912                 break;
1913         default:
1914                 DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
1915                 kfree(dcbx_info);
1916                 return 1;
1917         }
1918
1919         DP_VERBOSE(hwfn, QED_MSG_DCB, "flags = %d\n", *flags);
1920         kfree(dcbx_info);
1921
1922         return 0;
1923 }
1924
1925 static u8 qed_dcbnl_setfeatcfg(struct qed_dev *cdev, int featid, u8 flags)
1926 {
1927         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1928         struct qed_dcbx_set dcbx_set;
1929         bool enabled, willing;
1930         struct qed_ptt *ptt;
1931         int rc;
1932
1933         DP_VERBOSE(hwfn, QED_MSG_DCB, "featid = %d flags = %d\n",
1934                    featid, flags);
1935         memset(&dcbx_set, 0, sizeof(dcbx_set));
1936         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1937         if (rc)
1938                 return 1;
1939
1940         enabled = !!(flags & DCB_FEATCFG_ENABLE);
1941         willing = !!(flags & DCB_FEATCFG_WILLING);
1942         switch (featid) {
1943         case DCB_FEATCFG_ATTR_PG:
1944                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1945                 dcbx_set.config.params.ets_enabled = enabled;
1946                 dcbx_set.config.params.ets_willing = willing;
1947                 break;
1948         case DCB_FEATCFG_ATTR_PFC:
1949                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1950                 dcbx_set.config.params.pfc.enabled = enabled;
1951                 dcbx_set.config.params.pfc.willing = willing;
1952                 break;
1953         case DCB_FEATCFG_ATTR_APP:
1954                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
1955                 dcbx_set.config.params.app_willing = willing;
1956                 break;
1957         default:
1958                 DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
1959                 return 1;
1960         }
1961
1962         ptt = qed_ptt_acquire(hwfn);
1963         if (!ptt)
1964                 return 1;
1965
1966         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1967
1968         qed_ptt_release(hwfn, ptt);
1969
1970         return 0;
1971 }
1972
1973 static int qed_dcbnl_peer_getappinfo(struct qed_dev *cdev,
1974                                      struct dcb_peer_app_info *info,
1975                                      u16 *app_count)
1976 {
1977         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1978         struct qed_dcbx_get *dcbx_info;
1979
1980         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1981         if (!dcbx_info)
1982                 return -EINVAL;
1983
1984         info->willing = dcbx_info->remote.params.app_willing;
1985         info->error = dcbx_info->remote.params.app_error;
1986         *app_count = dcbx_info->remote.params.num_app_entries;
1987         kfree(dcbx_info);
1988
1989         return 0;
1990 }
1991
1992 static int qed_dcbnl_peer_getapptable(struct qed_dev *cdev,
1993                                       struct dcb_app *table)
1994 {
1995         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1996         struct qed_dcbx_get *dcbx_info;
1997         int i;
1998
1999         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
2000         if (!dcbx_info)
2001                 return -EINVAL;
2002
2003         for (i = 0; i < dcbx_info->remote.params.num_app_entries; i++) {
2004                 if (dcbx_info->remote.params.app_entry[i].ethtype)
2005                         table[i].selector = DCB_APP_IDTYPE_ETHTYPE;
2006                 else
2007                         table[i].selector = DCB_APP_IDTYPE_PORTNUM;
2008                 table[i].priority = dcbx_info->remote.params.app_entry[i].prio;
2009                 table[i].protocol =
2010                     dcbx_info->remote.params.app_entry[i].proto_id;
2011         }
2012
2013         kfree(dcbx_info);
2014
2015         return 0;
2016 }
2017
2018 static int qed_dcbnl_cee_peer_getpfc(struct qed_dev *cdev, struct cee_pfc *pfc)
2019 {
2020         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2021         struct qed_dcbx_get *dcbx_info;
2022         int i;
2023
2024         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
2025         if (!dcbx_info)
2026                 return -EINVAL;
2027
2028         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2029                 if (dcbx_info->remote.params.pfc.prio[i])
2030                         pfc->pfc_en |= BIT(i);
2031
2032         pfc->tcs_supported = dcbx_info->remote.params.pfc.max_tc;
2033         DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d tcs_supported = %d\n",
2034                    pfc->pfc_en, pfc->tcs_supported);
2035         kfree(dcbx_info);
2036
2037         return 0;
2038 }
2039
2040 static int qed_dcbnl_cee_peer_getpg(struct qed_dev *cdev, struct cee_pg *pg)
2041 {
2042         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2043         struct qed_dcbx_get *dcbx_info;
2044         int i;
2045
2046         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
2047         if (!dcbx_info)
2048                 return -EINVAL;
2049
2050         pg->willing = dcbx_info->remote.params.ets_willing;
2051         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
2052                 pg->pg_bw[i] = dcbx_info->remote.params.ets_tc_bw_tbl[i];
2053                 pg->prio_pg[i] = dcbx_info->remote.params.ets_pri_tc_tbl[i];
2054         }
2055
2056         DP_VERBOSE(hwfn, QED_MSG_DCB, "willing = %d", pg->willing);
2057         kfree(dcbx_info);
2058
2059         return 0;
2060 }
2061
2062 static int qed_dcbnl_get_ieee_pfc(struct qed_dev *cdev,
2063                                   struct ieee_pfc *pfc, bool remote)
2064 {
2065         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2066         struct qed_dcbx_params *params;
2067         struct qed_dcbx_get *dcbx_info;
2068         int rc, i;
2069
2070         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2071         if (!dcbx_info)
2072                 return -EINVAL;
2073
2074         if (!dcbx_info->operational.ieee) {
2075                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2076                 kfree(dcbx_info);
2077                 return -EINVAL;
2078         }
2079
2080         if (remote) {
2081                 memset(dcbx_info, 0, sizeof(*dcbx_info));
2082                 rc = qed_dcbx_query_params(hwfn, dcbx_info,
2083                                            QED_DCBX_REMOTE_MIB);
2084                 if (rc) {
2085                         kfree(dcbx_info);
2086                         return -EINVAL;
2087                 }
2088
2089                 params = &dcbx_info->remote.params;
2090         } else {
2091                 params = &dcbx_info->operational.params;
2092         }
2093
2094         pfc->pfc_cap = params->pfc.max_tc;
2095         pfc->pfc_en = 0;
2096         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2097                 if (params->pfc.prio[i])
2098                         pfc->pfc_en |= BIT(i);
2099
2100         kfree(dcbx_info);
2101
2102         return 0;
2103 }
2104
2105 static int qed_dcbnl_ieee_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2106 {
2107         return qed_dcbnl_get_ieee_pfc(cdev, pfc, false);
2108 }
2109
2110 static int qed_dcbnl_ieee_setpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2111 {
2112         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2113         struct qed_dcbx_get *dcbx_info;
2114         struct qed_dcbx_set dcbx_set;
2115         struct qed_ptt *ptt;
2116         int rc, i;
2117
2118         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2119         if (!dcbx_info)
2120                 return -EINVAL;
2121
2122         if (!dcbx_info->operational.ieee) {
2123                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2124                 kfree(dcbx_info);
2125                 return -EINVAL;
2126         }
2127
2128         kfree(dcbx_info);
2129
2130         memset(&dcbx_set, 0, sizeof(dcbx_set));
2131         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2132         if (rc)
2133                 return -EINVAL;
2134
2135         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
2136         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2137                 dcbx_set.config.params.pfc.prio[i] = !!(pfc->pfc_en & BIT(i));
2138
2139         dcbx_set.config.params.pfc.max_tc = pfc->pfc_cap;
2140
2141         ptt = qed_ptt_acquire(hwfn);
2142         if (!ptt)
2143                 return -EINVAL;
2144
2145         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2146
2147         qed_ptt_release(hwfn, ptt);
2148
2149         return rc;
2150 }
2151
2152 static int qed_dcbnl_get_ieee_ets(struct qed_dev *cdev,
2153                                   struct ieee_ets *ets, bool remote)
2154 {
2155         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2156         struct qed_dcbx_get *dcbx_info;
2157         struct qed_dcbx_params *params;
2158         int rc;
2159
2160         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2161         if (!dcbx_info)
2162                 return -EINVAL;
2163
2164         if (!dcbx_info->operational.ieee) {
2165                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2166                 kfree(dcbx_info);
2167                 return -EINVAL;
2168         }
2169
2170         if (remote) {
2171                 memset(dcbx_info, 0, sizeof(*dcbx_info));
2172                 rc = qed_dcbx_query_params(hwfn, dcbx_info,
2173                                            QED_DCBX_REMOTE_MIB);
2174                 if (rc) {
2175                         kfree(dcbx_info);
2176                         return -EINVAL;
2177                 }
2178
2179                 params = &dcbx_info->remote.params;
2180         } else {
2181                 params = &dcbx_info->operational.params;
2182         }
2183
2184         ets->ets_cap = params->max_ets_tc;
2185         ets->willing = params->ets_willing;
2186         ets->cbs = params->ets_cbs;
2187         memcpy(ets->tc_tx_bw, params->ets_tc_bw_tbl, sizeof(ets->tc_tx_bw));
2188         memcpy(ets->tc_tsa, params->ets_tc_tsa_tbl, sizeof(ets->tc_tsa));
2189         memcpy(ets->prio_tc, params->ets_pri_tc_tbl, sizeof(ets->prio_tc));
2190         kfree(dcbx_info);
2191
2192         return 0;
2193 }
2194
2195 static int qed_dcbnl_ieee_getets(struct qed_dev *cdev, struct ieee_ets *ets)
2196 {
2197         return qed_dcbnl_get_ieee_ets(cdev, ets, false);
2198 }
2199
2200 static int qed_dcbnl_ieee_setets(struct qed_dev *cdev, struct ieee_ets *ets)
2201 {
2202         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2203         struct qed_dcbx_get *dcbx_info;
2204         struct qed_dcbx_set dcbx_set;
2205         struct qed_ptt *ptt;
2206         int rc;
2207
2208         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2209         if (!dcbx_info)
2210                 return -EINVAL;
2211
2212         if (!dcbx_info->operational.ieee) {
2213                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2214                 kfree(dcbx_info);
2215                 return -EINVAL;
2216         }
2217
2218         kfree(dcbx_info);
2219
2220         memset(&dcbx_set, 0, sizeof(dcbx_set));
2221         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2222         if (rc)
2223                 return -EINVAL;
2224
2225         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
2226         dcbx_set.config.params.max_ets_tc = ets->ets_cap;
2227         dcbx_set.config.params.ets_willing = ets->willing;
2228         dcbx_set.config.params.ets_cbs = ets->cbs;
2229         memcpy(dcbx_set.config.params.ets_tc_bw_tbl, ets->tc_tx_bw,
2230                sizeof(ets->tc_tx_bw));
2231         memcpy(dcbx_set.config.params.ets_tc_tsa_tbl, ets->tc_tsa,
2232                sizeof(ets->tc_tsa));
2233         memcpy(dcbx_set.config.params.ets_pri_tc_tbl, ets->prio_tc,
2234                sizeof(ets->prio_tc));
2235
2236         ptt = qed_ptt_acquire(hwfn);
2237         if (!ptt)
2238                 return -EINVAL;
2239
2240         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2241
2242         qed_ptt_release(hwfn, ptt);
2243
2244         return rc;
2245 }
2246
2247 static int
2248 qed_dcbnl_ieee_peer_getets(struct qed_dev *cdev, struct ieee_ets *ets)
2249 {
2250         return qed_dcbnl_get_ieee_ets(cdev, ets, true);
2251 }
2252
2253 static int
2254 qed_dcbnl_ieee_peer_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2255 {
2256         return qed_dcbnl_get_ieee_pfc(cdev, pfc, true);
2257 }
2258
2259 static int qed_get_sf_ieee_value(u8 selector, u8 *sf_ieee)
2260 {
2261         switch (selector) {
2262         case IEEE_8021QAZ_APP_SEL_ETHERTYPE:
2263                 *sf_ieee = QED_DCBX_SF_IEEE_ETHTYPE;
2264                 break;
2265         case IEEE_8021QAZ_APP_SEL_STREAM:
2266                 *sf_ieee = QED_DCBX_SF_IEEE_TCP_PORT;
2267                 break;
2268         case IEEE_8021QAZ_APP_SEL_DGRAM:
2269                 *sf_ieee = QED_DCBX_SF_IEEE_UDP_PORT;
2270                 break;
2271         case IEEE_8021QAZ_APP_SEL_ANY:
2272                 *sf_ieee = QED_DCBX_SF_IEEE_TCP_UDP_PORT;
2273                 break;
2274         default:
2275                 return -EINVAL;
2276         }
2277
2278         return 0;
2279 }
2280
2281 static int qed_dcbnl_ieee_getapp(struct qed_dev *cdev, struct dcb_app *app)
2282 {
2283         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2284         struct qed_dcbx_get *dcbx_info;
2285         struct qed_app_entry *entry;
2286         u8 prio = 0;
2287         u8 sf_ieee;
2288         int i;
2289
2290         DP_VERBOSE(hwfn, QED_MSG_DCB, "selector = %d protocol = %d\n",
2291                    app->selector, app->protocol);
2292
2293         if (qed_get_sf_ieee_value(app->selector, &sf_ieee)) {
2294                 DP_INFO(cdev, "Invalid selector field value %d\n",
2295                         app->selector);
2296                 return -EINVAL;
2297         }
2298
2299         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2300         if (!dcbx_info)
2301                 return -EINVAL;
2302
2303         if (!dcbx_info->operational.ieee) {
2304                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2305                 kfree(dcbx_info);
2306                 return -EINVAL;
2307         }
2308
2309         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
2310                 entry = &dcbx_info->operational.params.app_entry[i];
2311                 if ((entry->sf_ieee == sf_ieee) &&
2312                     (entry->proto_id == app->protocol)) {
2313                         prio = entry->prio;
2314                         break;
2315                 }
2316         }
2317
2318         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
2319                 DP_ERR(cdev, "App entry (%d, %d) not found\n", app->selector,
2320                        app->protocol);
2321                 kfree(dcbx_info);
2322                 return -EINVAL;
2323         }
2324
2325         app->priority = ffs(prio) - 1;
2326
2327         kfree(dcbx_info);
2328
2329         return 0;
2330 }
2331
2332 static int qed_dcbnl_ieee_setapp(struct qed_dev *cdev, struct dcb_app *app)
2333 {
2334         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2335         struct qed_dcbx_get *dcbx_info;
2336         struct qed_dcbx_set dcbx_set;
2337         struct qed_app_entry *entry;
2338         struct qed_ptt *ptt;
2339         u8 sf_ieee;
2340         int rc, i;
2341
2342         DP_VERBOSE(hwfn, QED_MSG_DCB, "selector = %d protocol = %d pri = %d\n",
2343                    app->selector, app->protocol, app->priority);
2344         if (app->priority >= QED_MAX_PFC_PRIORITIES) {
2345                 DP_INFO(hwfn, "Invalid priority %d\n", app->priority);
2346                 return -EINVAL;
2347         }
2348
2349         if (qed_get_sf_ieee_value(app->selector, &sf_ieee)) {
2350                 DP_INFO(cdev, "Invalid selector field value %d\n",
2351                         app->selector);
2352                 return -EINVAL;
2353         }
2354
2355         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2356         if (!dcbx_info)
2357                 return -EINVAL;
2358
2359         if (!dcbx_info->operational.ieee) {
2360                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2361                 kfree(dcbx_info);
2362                 return -EINVAL;
2363         }
2364
2365         kfree(dcbx_info);
2366
2367         memset(&dcbx_set, 0, sizeof(dcbx_set));
2368         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2369         if (rc)
2370                 return -EINVAL;
2371
2372         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
2373                 entry = &dcbx_set.config.params.app_entry[i];
2374                 if ((entry->sf_ieee == sf_ieee) &&
2375                     (entry->proto_id == app->protocol))
2376                         break;
2377                 /* First empty slot */
2378                 if (!entry->proto_id) {
2379                         dcbx_set.config.params.num_app_entries++;
2380                         break;
2381                 }
2382         }
2383
2384         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
2385                 DP_ERR(cdev, "App table is full\n");
2386                 return -EBUSY;
2387         }
2388
2389         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
2390         dcbx_set.config.params.app_entry[i].sf_ieee = sf_ieee;
2391         dcbx_set.config.params.app_entry[i].proto_id = app->protocol;
2392         dcbx_set.config.params.app_entry[i].prio = BIT(app->priority);
2393
2394         ptt = qed_ptt_acquire(hwfn);
2395         if (!ptt)
2396                 return -EBUSY;
2397
2398         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2399
2400         qed_ptt_release(hwfn, ptt);
2401
2402         return rc;
2403 }
2404
2405 const struct qed_eth_dcbnl_ops qed_dcbnl_ops_pass = {
2406         .getstate = qed_dcbnl_getstate,
2407         .setstate = qed_dcbnl_setstate,
2408         .getpgtccfgtx = qed_dcbnl_getpgtccfgtx,
2409         .getpgbwgcfgtx = qed_dcbnl_getpgbwgcfgtx,
2410         .getpgtccfgrx = qed_dcbnl_getpgtccfgrx,
2411         .getpgbwgcfgrx = qed_dcbnl_getpgbwgcfgrx,
2412         .getpfccfg = qed_dcbnl_getpfccfg,
2413         .setpfccfg = qed_dcbnl_setpfccfg,
2414         .getcap = qed_dcbnl_getcap,
2415         .getnumtcs = qed_dcbnl_getnumtcs,
2416         .getpfcstate = qed_dcbnl_getpfcstate,
2417         .getdcbx = qed_dcbnl_getdcbx,
2418         .setpgtccfgtx = qed_dcbnl_setpgtccfgtx,
2419         .setpgtccfgrx = qed_dcbnl_setpgtccfgrx,
2420         .setpgbwgcfgtx = qed_dcbnl_setpgbwgcfgtx,
2421         .setpgbwgcfgrx = qed_dcbnl_setpgbwgcfgrx,
2422         .setall = qed_dcbnl_setall,
2423         .setnumtcs = qed_dcbnl_setnumtcs,
2424         .setpfcstate = qed_dcbnl_setpfcstate,
2425         .setapp = qed_dcbnl_setapp,
2426         .setdcbx = qed_dcbnl_setdcbx,
2427         .setfeatcfg = qed_dcbnl_setfeatcfg,
2428         .getfeatcfg = qed_dcbnl_getfeatcfg,
2429         .getapp = qed_dcbnl_getapp,
2430         .peer_getappinfo = qed_dcbnl_peer_getappinfo,
2431         .peer_getapptable = qed_dcbnl_peer_getapptable,
2432         .cee_peer_getpfc = qed_dcbnl_cee_peer_getpfc,
2433         .cee_peer_getpg = qed_dcbnl_cee_peer_getpg,
2434         .ieee_getpfc = qed_dcbnl_ieee_getpfc,
2435         .ieee_setpfc = qed_dcbnl_ieee_setpfc,
2436         .ieee_getets = qed_dcbnl_ieee_getets,
2437         .ieee_setets = qed_dcbnl_ieee_setets,
2438         .ieee_peer_getpfc = qed_dcbnl_ieee_peer_getpfc,
2439         .ieee_peer_getets = qed_dcbnl_ieee_peer_getets,
2440         .ieee_getapp = qed_dcbnl_ieee_getapp,
2441         .ieee_setapp = qed_dcbnl_ieee_setapp,
2442 };
2443
2444 #endif