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