drivers/net/ethernet/qlogic/qed/qed

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This source file includes following definitions.
qed_dcbx_app_ethtype
qed_dcbx_ieee_app_ethtype
qed_dcbx_app_port
qed_dcbx_ieee_app_port
qed_dcbx_default_tlv
qed_dcbx_iscsi_tlv
qed_dcbx_fcoe_tlv
qed_dcbx_roce_tlv
qed_dcbx_roce_v2_tlv
qed_dcbx_dp_protocol
qed_dcbx_set_params
qed_dcbx_update_app_info
qed_dcbx_get_app_protocol_type
qed_dcbx_process_tlv
qed_dcbx_process_mib_info
qed_dcbx_copy_mib
qed_dcbx_get_priority_info
qed_dcbx_get_app_data
qed_dcbx_get_pfc_data
qed_dcbx_get_ets_data
qed_dcbx_get_common_params
qed_dcbx_get_local_params
qed_dcbx_get_remote_params
qed_dcbx_get_operational_params
qed_dcbx_get_local_lldp_params
qed_dcbx_get_remote_lldp_params
qed_dcbx_get_params
qed_dcbx_read_local_lldp_mib
qed_dcbx_read_remote_lldp_mib
qed_dcbx_read_operational_mib
qed_dcbx_read_remote_mib
qed_dcbx_read_local_mib
qed_dcbx_read_mib
qed_dcbx_aen
qed_dcbx_mib_update_event
qed_dcbx_info_alloc
qed_dcbx_info_free
qed_dcbx_update_protocol_data
qed_dcbx_set_pf_update_params
qed_dcbx_get_priority_tc
qed_dcbx_query_params
qed_dcbx_set_pfc_data
qed_dcbx_set_ets_data
qed_dcbx_set_app_data
qed_dcbx_set_local_params
qed_dcbx_config_params
qed_dcbx_get_config_params
qed_dcbnl_get_dcbx
qed_dcbnl_getstate
qed_dcbnl_setstate
qed_dcbnl_getpgtccfgtx
qed_dcbnl_getpgbwgcfgtx
qed_dcbnl_getpgtccfgrx
qed_dcbnl_getpgbwgcfgrx
qed_dcbnl_getpfccfg
qed_dcbnl_setpfccfg
qed_dcbnl_getcap
qed_dcbnl_getnumtcs
qed_dcbnl_getpfcstate
qed_dcbnl_getdcbx
qed_dcbnl_setpgtccfgtx
qed_dcbnl_setpgtccfgrx
qed_dcbnl_setpgbwgcfgtx
qed_dcbnl_setpgbwgcfgrx
qed_dcbnl_setall
qed_dcbnl_setnumtcs
qed_dcbnl_setpfcstate
qed_dcbnl_getapp
qed_dcbnl_setapp
qed_dcbnl_setdcbx
qed_dcbnl_getfeatcfg
qed_dcbnl_setfeatcfg
qed_dcbnl_peer_getappinfo
qed_dcbnl_peer_getapptable
qed_dcbnl_cee_peer_getpfc
qed_dcbnl_cee_peer_getpg
qed_dcbnl_get_ieee_pfc
qed_dcbnl_ieee_getpfc
qed_dcbnl_ieee_setpfc
qed_dcbnl_get_ieee_ets
qed_dcbnl_ieee_getets
qed_dcbnl_ieee_setets
qed_dcbnl_ieee_peer_getets
qed_dcbnl_ieee_peer_getpfc
qed_get_sf_ieee_value
qed_dcbnl_ieee_getapp
qed_dcbnl_ieee_setapp
   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         if (test_bit(QED_MF_DONT_ADD_VLAN0_TAG, &p_hwfn->cdev->mf_bits))
 208                 p_data->arr[type].dont_add_vlan0 = true;
 209 
 210         /* QM reconf data */
 211         if (app_tlv && p_hwfn->hw_info.personality == personality)
 212                 qed_hw_info_set_offload_tc(&p_hwfn->hw_info, tc);
 213 
 214         /* Configure dcbx vlan priority in doorbell block for roce EDPM */
 215         if (test_bit(QED_MF_UFP_SPECIFIC, &p_hwfn->cdev->mf_bits) &&
 216             type == DCBX_PROTOCOL_ROCE) {
 217                 qed_wr(p_hwfn, p_ptt, DORQ_REG_TAG1_OVRD_MODE, 1);
 218                 qed_wr(p_hwfn, p_ptt, DORQ_REG_PF_PCP_BB_K2, prio << 1);
 219         }
 220 }
 221 
 222 /* Update app protocol data and hw_info fields with the TLV info */
 223 static void
 224 qed_dcbx_update_app_info(struct qed_dcbx_results *p_data,
 225                          struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
 226                          bool app_tlv, bool enable, u8 prio, u8 tc,
 227                          enum dcbx_protocol_type type)
 228 {
 229         enum qed_pci_personality personality;
 230         enum dcbx_protocol_type id;
 231         int i;
 232 
 233         for (i = 0; i < ARRAY_SIZE(qed_dcbx_app_update); i++) {
 234                 id = qed_dcbx_app_update[i].id;
 235 
 236                 if (type != id)
 237                         continue;
 238 
 239                 personality = qed_dcbx_app_update[i].personality;
 240 
 241                 qed_dcbx_set_params(p_data, p_hwfn, p_ptt, app_tlv, enable,
 242                                     prio, tc, type, personality);
 243         }
 244 }
 245 
 246 static bool
 247 qed_dcbx_get_app_protocol_type(struct qed_hwfn *p_hwfn,
 248                                u32 app_prio_bitmap,
 249                                u16 id, enum dcbx_protocol_type *type, bool ieee)
 250 {
 251         if (qed_dcbx_fcoe_tlv(app_prio_bitmap, id, ieee)) {
 252                 *type = DCBX_PROTOCOL_FCOE;
 253         } else if (qed_dcbx_roce_tlv(app_prio_bitmap, id, ieee)) {
 254                 *type = DCBX_PROTOCOL_ROCE;
 255         } else if (qed_dcbx_iscsi_tlv(app_prio_bitmap, id, ieee)) {
 256                 *type = DCBX_PROTOCOL_ISCSI;
 257         } else if (qed_dcbx_default_tlv(app_prio_bitmap, id, ieee)) {
 258                 *type = DCBX_PROTOCOL_ETH;
 259         } else if (qed_dcbx_roce_v2_tlv(app_prio_bitmap, id, ieee)) {
 260                 *type = DCBX_PROTOCOL_ROCE_V2;
 261         } else {
 262                 *type = DCBX_MAX_PROTOCOL_TYPE;
 263                 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 264                            "No action required, App TLV entry = 0x%x\n",
 265                            app_prio_bitmap);
 266                 return false;
 267         }
 268 
 269         return true;
 270 }
 271 
 272 /* Parse app TLV's to update TC information in hw_info structure for
 273  * reconfiguring QM. Get protocol specific data for PF update ramrod command.
 274  */
 275 static int
 276 qed_dcbx_process_tlv(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
 277                      struct qed_dcbx_results *p_data,
 278                      struct dcbx_app_priority_entry *p_tbl,
 279                      u32 pri_tc_tbl, int count, u8 dcbx_version)
 280 {
 281         enum dcbx_protocol_type type;
 282         bool enable, ieee, eth_tlv;
 283         u8 tc, priority_map;
 284         u16 protocol_id;
 285         int priority;
 286         int i;
 287 
 288         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Num APP entries = %d\n", count);
 289 
 290         ieee = (dcbx_version == DCBX_CONFIG_VERSION_IEEE);
 291         eth_tlv = false;
 292         /* Parse APP TLV */
 293         for (i = 0; i < count; i++) {
 294                 protocol_id = QED_MFW_GET_FIELD(p_tbl[i].entry,
 295                                                 DCBX_APP_PROTOCOL_ID);
 296                 priority_map = QED_MFW_GET_FIELD(p_tbl[i].entry,
 297                                                  DCBX_APP_PRI_MAP);
 298                 priority = ffs(priority_map) - 1;
 299                 if (priority < 0) {
 300                         DP_ERR(p_hwfn, "Invalid priority\n");
 301                         return -EINVAL;
 302                 }
 303 
 304                 tc = QED_DCBX_PRIO2TC(pri_tc_tbl, priority);
 305                 if (qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
 306                                                    protocol_id, &type, ieee)) {
 307                         /* ETH always have the enable bit reset, as it gets
 308                          * vlan information per packet. For other protocols,
 309                          * should be set according to the dcbx_enabled
 310                          * indication, but we only got here if there was an
 311                          * app tlv for the protocol, so dcbx must be enabled.
 312                          */
 313                         if (type == DCBX_PROTOCOL_ETH) {
 314                                 enable = false;
 315                                 eth_tlv = true;
 316                         } else {
 317                                 enable = true;
 318                         }
 319 
 320                         qed_dcbx_update_app_info(p_data, p_hwfn, p_ptt, true,
 321                                                  enable, priority, tc, type);
 322                 }
 323         }
 324 
 325         /* If Eth TLV is not detected, use UFP TC as default TC */
 326         if (test_bit(QED_MF_UFP_SPECIFIC, &p_hwfn->cdev->mf_bits) && !eth_tlv)
 327                 p_data->arr[DCBX_PROTOCOL_ETH].tc = p_hwfn->ufp_info.tc;
 328 
 329         /* Update ramrod protocol data and hw_info fields
 330          * with default info when corresponding APP TLV's are not detected.
 331          * The enabled field has a different logic for ethernet as only for
 332          * ethernet dcb should disabled by default, as the information arrives
 333          * from the OS (unless an explicit app tlv was present).
 334          */
 335         tc = p_data->arr[DCBX_PROTOCOL_ETH].tc;
 336         priority = p_data->arr[DCBX_PROTOCOL_ETH].priority;
 337         for (type = 0; type < DCBX_MAX_PROTOCOL_TYPE; type++) {
 338                 if (p_data->arr[type].update)
 339                         continue;
 340 
 341                 enable = (type == DCBX_PROTOCOL_ETH) ? false : !!dcbx_version;
 342                 qed_dcbx_update_app_info(p_data, p_hwfn, p_ptt, false, enable,
 343                                          priority, tc, type);
 344         }
 345 
 346         return 0;
 347 }
 348 
 349 /* Parse app TLV's to update TC information in hw_info structure for
 350  * reconfiguring QM. Get protocol specific data for PF update ramrod command.
 351  */
 352 static int
 353 qed_dcbx_process_mib_info(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 354 {
 355         struct dcbx_app_priority_feature *p_app;
 356         struct dcbx_app_priority_entry *p_tbl;
 357         struct qed_dcbx_results data = { 0 };
 358         struct dcbx_ets_feature *p_ets;
 359         struct qed_hw_info *p_info;
 360         u32 pri_tc_tbl, flags;
 361         u8 dcbx_version;
 362         int num_entries;
 363         int rc = 0;
 364 
 365         flags = p_hwfn->p_dcbx_info->operational.flags;
 366         dcbx_version = QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION);
 367 
 368         p_app = &p_hwfn->p_dcbx_info->operational.features.app;
 369         p_tbl = p_app->app_pri_tbl;
 370 
 371         p_ets = &p_hwfn->p_dcbx_info->operational.features.ets;
 372         pri_tc_tbl = p_ets->pri_tc_tbl[0];
 373 
 374         p_info = &p_hwfn->hw_info;
 375         num_entries = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_NUM_ENTRIES);
 376 
 377         rc = qed_dcbx_process_tlv(p_hwfn, p_ptt, &data, p_tbl, pri_tc_tbl,
 378                                   num_entries, dcbx_version);
 379         if (rc)
 380                 return rc;
 381 
 382         p_info->num_active_tc = QED_MFW_GET_FIELD(p_ets->flags,
 383                                                   DCBX_ETS_MAX_TCS);
 384         p_hwfn->qm_info.ooo_tc = QED_MFW_GET_FIELD(p_ets->flags, DCBX_OOO_TC);
 385         data.pf_id = p_hwfn->rel_pf_id;
 386         data.dcbx_enabled = !!dcbx_version;
 387 
 388         qed_dcbx_dp_protocol(p_hwfn, &data);
 389 
 390         memcpy(&p_hwfn->p_dcbx_info->results, &data,
 391                sizeof(struct qed_dcbx_results));
 392 
 393         return 0;
 394 }
 395 
 396 static int
 397 qed_dcbx_copy_mib(struct qed_hwfn *p_hwfn,
 398                   struct qed_ptt *p_ptt,
 399                   struct qed_dcbx_mib_meta_data *p_data,
 400                   enum qed_mib_read_type type)
 401 {
 402         u32 prefix_seq_num, suffix_seq_num;
 403         int read_count = 0;
 404         int rc = 0;
 405 
 406         /* The data is considered to be valid only if both sequence numbers are
 407          * the same.
 408          */
 409         do {
 410                 if (type == QED_DCBX_REMOTE_LLDP_MIB) {
 411                         qed_memcpy_from(p_hwfn, p_ptt, p_data->lldp_remote,
 412                                         p_data->addr, p_data->size);
 413                         prefix_seq_num = p_data->lldp_remote->prefix_seq_num;
 414                         suffix_seq_num = p_data->lldp_remote->suffix_seq_num;
 415                 } else {
 416                         qed_memcpy_from(p_hwfn, p_ptt, p_data->mib,
 417                                         p_data->addr, p_data->size);
 418                         prefix_seq_num = p_data->mib->prefix_seq_num;
 419                         suffix_seq_num = p_data->mib->suffix_seq_num;
 420                 }
 421                 read_count++;
 422 
 423                 DP_VERBOSE(p_hwfn,
 424                            QED_MSG_DCB,
 425                            "mib type = %d, try count = %d prefix seq num  = %d suffix seq num = %d\n",
 426                            type, read_count, prefix_seq_num, suffix_seq_num);
 427         } while ((prefix_seq_num != suffix_seq_num) &&
 428                  (read_count < QED_DCBX_MAX_MIB_READ_TRY));
 429 
 430         if (read_count >= QED_DCBX_MAX_MIB_READ_TRY) {
 431                 DP_ERR(p_hwfn,
 432                        "MIB read err, mib type = %d, try count = %d prefix seq num = %d suffix seq num = %d\n",
 433                        type, read_count, prefix_seq_num, suffix_seq_num);
 434                 rc = -EIO;
 435         }
 436 
 437         return rc;
 438 }
 439 
 440 static void
 441 qed_dcbx_get_priority_info(struct qed_hwfn *p_hwfn,
 442                            struct qed_dcbx_app_prio *p_prio,
 443                            struct qed_dcbx_results *p_results)
 444 {
 445         u8 val;
 446 
 447         p_prio->roce = QED_DCBX_INVALID_PRIORITY;
 448         p_prio->roce_v2 = QED_DCBX_INVALID_PRIORITY;
 449         p_prio->iscsi = QED_DCBX_INVALID_PRIORITY;
 450         p_prio->fcoe = QED_DCBX_INVALID_PRIORITY;
 451 
 452         if (p_results->arr[DCBX_PROTOCOL_ROCE].update &&
 453             p_results->arr[DCBX_PROTOCOL_ROCE].enable)
 454                 p_prio->roce = p_results->arr[DCBX_PROTOCOL_ROCE].priority;
 455 
 456         if (p_results->arr[DCBX_PROTOCOL_ROCE_V2].update &&
 457             p_results->arr[DCBX_PROTOCOL_ROCE_V2].enable) {
 458                 val = p_results->arr[DCBX_PROTOCOL_ROCE_V2].priority;
 459                 p_prio->roce_v2 = val;
 460         }
 461 
 462         if (p_results->arr[DCBX_PROTOCOL_ISCSI].update &&
 463             p_results->arr[DCBX_PROTOCOL_ISCSI].enable)
 464                 p_prio->iscsi = p_results->arr[DCBX_PROTOCOL_ISCSI].priority;
 465 
 466         if (p_results->arr[DCBX_PROTOCOL_FCOE].update &&
 467             p_results->arr[DCBX_PROTOCOL_FCOE].enable)
 468                 p_prio->fcoe = p_results->arr[DCBX_PROTOCOL_FCOE].priority;
 469 
 470         if (p_results->arr[DCBX_PROTOCOL_ETH].update &&
 471             p_results->arr[DCBX_PROTOCOL_ETH].enable)
 472                 p_prio->eth = p_results->arr[DCBX_PROTOCOL_ETH].priority;
 473 
 474         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 475                    "Priorities: iscsi %d, roce %d, roce v2 %d, fcoe %d, eth %d\n",
 476                    p_prio->iscsi, p_prio->roce, p_prio->roce_v2, p_prio->fcoe,
 477                    p_prio->eth);
 478 }
 479 
 480 static void
 481 qed_dcbx_get_app_data(struct qed_hwfn *p_hwfn,
 482                       struct dcbx_app_priority_feature *p_app,
 483                       struct dcbx_app_priority_entry *p_tbl,
 484                       struct qed_dcbx_params *p_params, bool ieee)
 485 {
 486         struct qed_app_entry *entry;
 487         u8 pri_map;
 488         int i;
 489 
 490         p_params->app_willing = QED_MFW_GET_FIELD(p_app->flags,
 491                                                   DCBX_APP_WILLING);
 492         p_params->app_valid = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_ENABLED);
 493         p_params->app_error = QED_MFW_GET_FIELD(p_app->flags, DCBX_APP_ERROR);
 494         p_params->num_app_entries = QED_MFW_GET_FIELD(p_app->flags,
 495                                                       DCBX_APP_NUM_ENTRIES);
 496         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
 497                 entry = &p_params->app_entry[i];
 498                 if (ieee) {
 499                         u8 sf_ieee;
 500                         u32 val;
 501 
 502                         sf_ieee = QED_MFW_GET_FIELD(p_tbl[i].entry,
 503                                                     DCBX_APP_SF_IEEE);
 504                         switch (sf_ieee) {
 505                         case DCBX_APP_SF_IEEE_RESERVED:
 506                                 /* Old MFW */
 507                                 val = QED_MFW_GET_FIELD(p_tbl[i].entry,
 508                                                         DCBX_APP_SF);
 509                                 entry->sf_ieee = val ?
 510                                     QED_DCBX_SF_IEEE_TCP_UDP_PORT :
 511                                     QED_DCBX_SF_IEEE_ETHTYPE;
 512                                 break;
 513                         case DCBX_APP_SF_IEEE_ETHTYPE:
 514                                 entry->sf_ieee = QED_DCBX_SF_IEEE_ETHTYPE;
 515                                 break;
 516                         case DCBX_APP_SF_IEEE_TCP_PORT:
 517                                 entry->sf_ieee = QED_DCBX_SF_IEEE_TCP_PORT;
 518                                 break;
 519                         case DCBX_APP_SF_IEEE_UDP_PORT:
 520                                 entry->sf_ieee = QED_DCBX_SF_IEEE_UDP_PORT;
 521                                 break;
 522                         case DCBX_APP_SF_IEEE_TCP_UDP_PORT:
 523                                 entry->sf_ieee = QED_DCBX_SF_IEEE_TCP_UDP_PORT;
 524                                 break;
 525                         }
 526                 } else {
 527                         entry->ethtype = !(QED_MFW_GET_FIELD(p_tbl[i].entry,
 528                                                              DCBX_APP_SF));
 529                 }
 530 
 531                 pri_map = QED_MFW_GET_FIELD(p_tbl[i].entry, DCBX_APP_PRI_MAP);
 532                 entry->prio = ffs(pri_map) - 1;
 533                 entry->proto_id = QED_MFW_GET_FIELD(p_tbl[i].entry,
 534                                                     DCBX_APP_PROTOCOL_ID);
 535                 qed_dcbx_get_app_protocol_type(p_hwfn, p_tbl[i].entry,
 536                                                entry->proto_id,
 537                                                &entry->proto_type, ieee);
 538         }
 539 
 540         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 541                    "APP params: willing %d, valid %d error = %d\n",
 542                    p_params->app_willing, p_params->app_valid,
 543                    p_params->app_error);
 544 }
 545 
 546 static void
 547 qed_dcbx_get_pfc_data(struct qed_hwfn *p_hwfn,
 548                       u32 pfc, struct qed_dcbx_params *p_params)
 549 {
 550         u8 pfc_map;
 551 
 552         p_params->pfc.willing = QED_MFW_GET_FIELD(pfc, DCBX_PFC_WILLING);
 553         p_params->pfc.max_tc = QED_MFW_GET_FIELD(pfc, DCBX_PFC_CAPS);
 554         p_params->pfc.enabled = QED_MFW_GET_FIELD(pfc, DCBX_PFC_ENABLED);
 555         pfc_map = QED_MFW_GET_FIELD(pfc, DCBX_PFC_PRI_EN_BITMAP);
 556         p_params->pfc.prio[0] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_0);
 557         p_params->pfc.prio[1] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_1);
 558         p_params->pfc.prio[2] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_2);
 559         p_params->pfc.prio[3] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_3);
 560         p_params->pfc.prio[4] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_4);
 561         p_params->pfc.prio[5] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_5);
 562         p_params->pfc.prio[6] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_6);
 563         p_params->pfc.prio[7] = !!(pfc_map & DCBX_PFC_PRI_EN_BITMAP_PRI_7);
 564 
 565         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 566                    "PFC params: willing %d, pfc_bitmap %u max_tc = %u enabled = %d\n",
 567                    p_params->pfc.willing, pfc_map, p_params->pfc.max_tc,
 568                    p_params->pfc.enabled);
 569 }
 570 
 571 static void
 572 qed_dcbx_get_ets_data(struct qed_hwfn *p_hwfn,
 573                       struct dcbx_ets_feature *p_ets,
 574                       struct qed_dcbx_params *p_params)
 575 {
 576         u32 bw_map[2], tsa_map[2], pri_map;
 577         int i;
 578 
 579         p_params->ets_willing = QED_MFW_GET_FIELD(p_ets->flags,
 580                                                   DCBX_ETS_WILLING);
 581         p_params->ets_enabled = QED_MFW_GET_FIELD(p_ets->flags,
 582                                                   DCBX_ETS_ENABLED);
 583         p_params->ets_cbs = QED_MFW_GET_FIELD(p_ets->flags, DCBX_ETS_CBS);
 584         p_params->max_ets_tc = QED_MFW_GET_FIELD(p_ets->flags,
 585                                                  DCBX_ETS_MAX_TCS);
 586         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 587                    "ETS params: willing %d, enabled = %d ets_cbs %d pri_tc_tbl_0 %x max_ets_tc %d\n",
 588                    p_params->ets_willing, p_params->ets_enabled,
 589                    p_params->ets_cbs, p_ets->pri_tc_tbl[0],
 590                    p_params->max_ets_tc);
 591 
 592         if (p_params->ets_enabled && !p_params->max_ets_tc) {
 593                 p_params->max_ets_tc = QED_MAX_PFC_PRIORITIES;
 594                 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 595                            "ETS params: max_ets_tc is forced to %d\n",
 596                 p_params->max_ets_tc);
 597         }
 598 
 599         /* 8 bit tsa and bw data corresponding to each of the 8 TC's are
 600          * encoded in a type u32 array of size 2.
 601          */
 602         bw_map[0] = be32_to_cpu(p_ets->tc_bw_tbl[0]);
 603         bw_map[1] = be32_to_cpu(p_ets->tc_bw_tbl[1]);
 604         tsa_map[0] = be32_to_cpu(p_ets->tc_tsa_tbl[0]);
 605         tsa_map[1] = be32_to_cpu(p_ets->tc_tsa_tbl[1]);
 606         pri_map = p_ets->pri_tc_tbl[0];
 607         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
 608                 p_params->ets_tc_bw_tbl[i] = ((u8 *)bw_map)[i];
 609                 p_params->ets_tc_tsa_tbl[i] = ((u8 *)tsa_map)[i];
 610                 p_params->ets_pri_tc_tbl[i] = QED_DCBX_PRIO2TC(pri_map, i);
 611                 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 612                            "elem %d  bw_tbl %x tsa_tbl %x\n",
 613                            i, p_params->ets_tc_bw_tbl[i],
 614                            p_params->ets_tc_tsa_tbl[i]);
 615         }
 616 }
 617 
 618 static void
 619 qed_dcbx_get_common_params(struct qed_hwfn *p_hwfn,
 620                            struct dcbx_app_priority_feature *p_app,
 621                            struct dcbx_app_priority_entry *p_tbl,
 622                            struct dcbx_ets_feature *p_ets,
 623                            u32 pfc, struct qed_dcbx_params *p_params, bool ieee)
 624 {
 625         qed_dcbx_get_app_data(p_hwfn, p_app, p_tbl, p_params, ieee);
 626         qed_dcbx_get_ets_data(p_hwfn, p_ets, p_params);
 627         qed_dcbx_get_pfc_data(p_hwfn, pfc, p_params);
 628 }
 629 
 630 static void
 631 qed_dcbx_get_local_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *params)
 632 {
 633         struct dcbx_features *p_feat;
 634 
 635         p_feat = &p_hwfn->p_dcbx_info->local_admin.features;
 636         qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
 637                                    p_feat->app.app_pri_tbl, &p_feat->ets,
 638                                    p_feat->pfc, &params->local.params, false);
 639         params->local.valid = true;
 640 }
 641 
 642 static void
 643 qed_dcbx_get_remote_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *params)
 644 {
 645         struct dcbx_features *p_feat;
 646 
 647         p_feat = &p_hwfn->p_dcbx_info->remote.features;
 648         qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
 649                                    p_feat->app.app_pri_tbl, &p_feat->ets,
 650                                    p_feat->pfc, &params->remote.params, false);
 651         params->remote.valid = true;
 652 }
 653 
 654 static void
 655 qed_dcbx_get_operational_params(struct qed_hwfn *p_hwfn,
 656                                 struct qed_dcbx_get *params)
 657 {
 658         struct qed_dcbx_operational_params *p_operational;
 659         struct qed_dcbx_results *p_results;
 660         struct dcbx_features *p_feat;
 661         bool enabled, err;
 662         u32 flags;
 663         bool val;
 664 
 665         flags = p_hwfn->p_dcbx_info->operational.flags;
 666 
 667         /* If DCBx version is non zero, then negotiation
 668          * was successfuly performed
 669          */
 670         p_operational = &params->operational;
 671         enabled = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) !=
 672                      DCBX_CONFIG_VERSION_DISABLED);
 673         if (!enabled) {
 674                 p_operational->enabled = enabled;
 675                 p_operational->valid = false;
 676                 DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Dcbx is disabled\n");
 677                 return;
 678         }
 679 
 680         p_feat = &p_hwfn->p_dcbx_info->operational.features;
 681         p_results = &p_hwfn->p_dcbx_info->results;
 682 
 683         val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
 684                  DCBX_CONFIG_VERSION_IEEE);
 685         p_operational->ieee = val;
 686         val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
 687                  DCBX_CONFIG_VERSION_CEE);
 688         p_operational->cee = val;
 689 
 690         val = !!(QED_MFW_GET_FIELD(flags, DCBX_CONFIG_VERSION) ==
 691                  DCBX_CONFIG_VERSION_STATIC);
 692         p_operational->local = val;
 693 
 694         DP_VERBOSE(p_hwfn, QED_MSG_DCB,
 695                    "Version support: ieee %d, cee %d, static %d\n",
 696                    p_operational->ieee, p_operational->cee,
 697                    p_operational->local);
 698 
 699         qed_dcbx_get_common_params(p_hwfn, &p_feat->app,
 700                                    p_feat->app.app_pri_tbl, &p_feat->ets,
 701                                    p_feat->pfc, &params->operational.params,
 702                                    p_operational->ieee);
 703         qed_dcbx_get_priority_info(p_hwfn, &p_operational->app_prio, p_results);
 704         err = QED_MFW_GET_FIELD(p_feat->app.flags, DCBX_APP_ERROR);
 705         p_operational->err = err;
 706         p_operational->enabled = enabled;
 707         p_operational->valid = true;
 708 }
 709 
 710 static void
 711 qed_dcbx_get_local_lldp_params(struct qed_hwfn *p_hwfn,
 712                                struct qed_dcbx_get *params)
 713 {
 714         struct lldp_config_params_s *p_local;
 715 
 716         p_local = &p_hwfn->p_dcbx_info->lldp_local[LLDP_NEAREST_BRIDGE];
 717 
 718         memcpy(params->lldp_local.local_chassis_id, p_local->local_chassis_id,
 719                sizeof(p_local->local_chassis_id));
 720         memcpy(params->lldp_local.local_port_id, p_local->local_port_id,
 721                sizeof(p_local->local_port_id));
 722 }
 723 
 724 static void
 725 qed_dcbx_get_remote_lldp_params(struct qed_hwfn *p_hwfn,
 726                                 struct qed_dcbx_get *params)
 727 {
 728         struct lldp_status_params_s *p_remote;
 729 
 730         p_remote = &p_hwfn->p_dcbx_info->lldp_remote[LLDP_NEAREST_BRIDGE];
 731 
 732         memcpy(params->lldp_remote.peer_chassis_id, p_remote->peer_chassis_id,
 733                sizeof(p_remote->peer_chassis_id));
 734         memcpy(params->lldp_remote.peer_port_id, p_remote->peer_port_id,
 735                sizeof(p_remote->peer_port_id));
 736 }
 737 
 738 static int
 739 qed_dcbx_get_params(struct qed_hwfn *p_hwfn, struct qed_dcbx_get *p_params,
 740                     enum qed_mib_read_type type)
 741 {
 742         switch (type) {
 743         case QED_DCBX_REMOTE_MIB:
 744                 qed_dcbx_get_remote_params(p_hwfn, p_params);
 745                 break;
 746         case QED_DCBX_LOCAL_MIB:
 747                 qed_dcbx_get_local_params(p_hwfn, p_params);
 748                 break;
 749         case QED_DCBX_OPERATIONAL_MIB:
 750                 qed_dcbx_get_operational_params(p_hwfn, p_params);
 751                 break;
 752         case QED_DCBX_REMOTE_LLDP_MIB:
 753                 qed_dcbx_get_remote_lldp_params(p_hwfn, p_params);
 754                 break;
 755         case QED_DCBX_LOCAL_LLDP_MIB:
 756                 qed_dcbx_get_local_lldp_params(p_hwfn, p_params);
 757                 break;
 758         default:
 759                 DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
 760                 return -EINVAL;
 761         }
 762 
 763         return 0;
 764 }
 765 
 766 static int
 767 qed_dcbx_read_local_lldp_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 768 {
 769         struct qed_dcbx_mib_meta_data data;
 770         int rc = 0;
 771 
 772         memset(&data, 0, sizeof(data));
 773         data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
 774                                                            lldp_config_params);
 775         data.lldp_local = p_hwfn->p_dcbx_info->lldp_local;
 776         data.size = sizeof(struct lldp_config_params_s);
 777         qed_memcpy_from(p_hwfn, p_ptt, data.lldp_local, data.addr, data.size);
 778 
 779         return rc;
 780 }
 781 
 782 static int
 783 qed_dcbx_read_remote_lldp_mib(struct qed_hwfn *p_hwfn,
 784                               struct qed_ptt *p_ptt,
 785                               enum qed_mib_read_type type)
 786 {
 787         struct qed_dcbx_mib_meta_data data;
 788         int rc = 0;
 789 
 790         memset(&data, 0, sizeof(data));
 791         data.addr = p_hwfn->mcp_info->port_addr + offsetof(struct public_port,
 792                                                            lldp_status_params);
 793         data.lldp_remote = p_hwfn->p_dcbx_info->lldp_remote;
 794         data.size = sizeof(struct lldp_status_params_s);
 795         rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 796 
 797         return rc;
 798 }
 799 
 800 static int
 801 qed_dcbx_read_operational_mib(struct qed_hwfn *p_hwfn,
 802                               struct qed_ptt *p_ptt,
 803                               enum qed_mib_read_type type)
 804 {
 805         struct qed_dcbx_mib_meta_data data;
 806         int rc = 0;
 807 
 808         memset(&data, 0, sizeof(data));
 809         data.addr = p_hwfn->mcp_info->port_addr +
 810                     offsetof(struct public_port, operational_dcbx_mib);
 811         data.mib = &p_hwfn->p_dcbx_info->operational;
 812         data.size = sizeof(struct dcbx_mib);
 813         rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 814 
 815         return rc;
 816 }
 817 
 818 static int
 819 qed_dcbx_read_remote_mib(struct qed_hwfn *p_hwfn,
 820                          struct qed_ptt *p_ptt, enum qed_mib_read_type type)
 821 {
 822         struct qed_dcbx_mib_meta_data data;
 823         int rc = 0;
 824 
 825         memset(&data, 0, sizeof(data));
 826         data.addr = p_hwfn->mcp_info->port_addr +
 827                     offsetof(struct public_port, remote_dcbx_mib);
 828         data.mib = &p_hwfn->p_dcbx_info->remote;
 829         data.size = sizeof(struct dcbx_mib);
 830         rc = qed_dcbx_copy_mib(p_hwfn, p_ptt, &data, type);
 831 
 832         return rc;
 833 }
 834 
 835 static int
 836 qed_dcbx_read_local_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 837 {
 838         struct qed_dcbx_mib_meta_data data;
 839         int rc = 0;
 840 
 841         memset(&data, 0, sizeof(data));
 842         data.addr = p_hwfn->mcp_info->port_addr +
 843                     offsetof(struct public_port, local_admin_dcbx_mib);
 844         data.local_admin = &p_hwfn->p_dcbx_info->local_admin;
 845         data.size = sizeof(struct dcbx_local_params);
 846         qed_memcpy_from(p_hwfn, p_ptt, data.local_admin, data.addr, data.size);
 847 
 848         return rc;
 849 }
 850 
 851 static int qed_dcbx_read_mib(struct qed_hwfn *p_hwfn,
 852                              struct qed_ptt *p_ptt, enum qed_mib_read_type type)
 853 {
 854         int rc = -EINVAL;
 855 
 856         switch (type) {
 857         case QED_DCBX_OPERATIONAL_MIB:
 858                 rc = qed_dcbx_read_operational_mib(p_hwfn, p_ptt, type);
 859                 break;
 860         case QED_DCBX_REMOTE_MIB:
 861                 rc = qed_dcbx_read_remote_mib(p_hwfn, p_ptt, type);
 862                 break;
 863         case QED_DCBX_LOCAL_MIB:
 864                 rc = qed_dcbx_read_local_mib(p_hwfn, p_ptt);
 865                 break;
 866         case QED_DCBX_REMOTE_LLDP_MIB:
 867                 rc = qed_dcbx_read_remote_lldp_mib(p_hwfn, p_ptt, type);
 868                 break;
 869         case QED_DCBX_LOCAL_LLDP_MIB:
 870                 rc = qed_dcbx_read_local_lldp_mib(p_hwfn, p_ptt);
 871                 break;
 872         default:
 873                 DP_ERR(p_hwfn, "MIB read err, unknown mib type %d\n", type);
 874         }
 875 
 876         return rc;
 877 }
 878 
 879 static void qed_dcbx_aen(struct qed_hwfn *hwfn, u32 mib_type)
 880 {
 881         struct qed_common_cb_ops *op = hwfn->cdev->protocol_ops.common;
 882         void *cookie = hwfn->cdev->ops_cookie;
 883 
 884         if (cookie && op->dcbx_aen)
 885                 op->dcbx_aen(cookie, &hwfn->p_dcbx_info->get, mib_type);
 886 }
 887 
 888 /* Read updated MIB.
 889  * Reconfigure QM and invoke PF update ramrod command if operational MIB
 890  * change is detected.
 891  */
 892 int
 893 qed_dcbx_mib_update_event(struct qed_hwfn *p_hwfn,
 894                           struct qed_ptt *p_ptt, enum qed_mib_read_type type)
 895 {
 896         int rc = 0;
 897 
 898         rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type);
 899         if (rc)
 900                 return rc;
 901 
 902         if (type == QED_DCBX_OPERATIONAL_MIB) {
 903                 rc = qed_dcbx_process_mib_info(p_hwfn, p_ptt);
 904                 if (!rc) {
 905                         /* reconfigure tcs of QM queues according
 906                          * to negotiation results
 907                          */
 908                         qed_qm_reconf(p_hwfn, p_ptt);
 909 
 910                         /* update storm FW with negotiation results */
 911                         qed_sp_pf_update(p_hwfn);
 912 
 913                         /* for roce PFs, we may want to enable/disable DPM
 914                          * when DCBx change occurs
 915                          */
 916                         if (p_hwfn->hw_info.personality ==
 917                             QED_PCI_ETH_ROCE)
 918                                 qed_roce_dpm_dcbx(p_hwfn, p_ptt);
 919                 }
 920         }
 921 
 922         qed_dcbx_get_params(p_hwfn, &p_hwfn->p_dcbx_info->get, type);
 923 
 924         if (type == QED_DCBX_OPERATIONAL_MIB) {
 925                 struct qed_dcbx_results *p_data;
 926                 u16 val;
 927 
 928                 /* Configure in NIG which protocols support EDPM and should
 929                  * honor PFC.
 930                  */
 931                 p_data = &p_hwfn->p_dcbx_info->results;
 932                 val = (0x1 << p_data->arr[DCBX_PROTOCOL_ROCE].tc) |
 933                       (0x1 << p_data->arr[DCBX_PROTOCOL_ROCE_V2].tc);
 934                 val <<= NIG_REG_TX_EDPM_CTRL_TX_EDPM_TC_EN_SHIFT;
 935                 val |= NIG_REG_TX_EDPM_CTRL_TX_EDPM_EN;
 936                 qed_wr(p_hwfn, p_ptt, NIG_REG_TX_EDPM_CTRL, val);
 937         }
 938 
 939         qed_dcbx_aen(p_hwfn, type);
 940 
 941         return rc;
 942 }
 943 
 944 int qed_dcbx_info_alloc(struct qed_hwfn *p_hwfn)
 945 {
 946         p_hwfn->p_dcbx_info = kzalloc(sizeof(*p_hwfn->p_dcbx_info), GFP_KERNEL);
 947         if (!p_hwfn->p_dcbx_info)
 948                 return -ENOMEM;
 949 
 950         return 0;
 951 }
 952 
 953 void qed_dcbx_info_free(struct qed_hwfn *p_hwfn)
 954 {
 955         kfree(p_hwfn->p_dcbx_info);
 956         p_hwfn->p_dcbx_info = NULL;
 957 }
 958 
 959 static void qed_dcbx_update_protocol_data(struct protocol_dcb_data *p_data,
 960                                           struct qed_dcbx_results *p_src,
 961                                           enum dcbx_protocol_type type)
 962 {
 963         p_data->dcb_enable_flag = p_src->arr[type].enable;
 964         p_data->dcb_priority = p_src->arr[type].priority;
 965         p_data->dcb_tc = p_src->arr[type].tc;
 966         p_data->dcb_dont_add_vlan0 = p_src->arr[type].dont_add_vlan0;
 967 }
 968 
 969 /* Set pf update ramrod command params */
 970 void qed_dcbx_set_pf_update_params(struct qed_dcbx_results *p_src,
 971                                    struct pf_update_ramrod_data *p_dest)
 972 {
 973         struct protocol_dcb_data *p_dcb_data;
 974         u8 update_flag;
 975 
 976         update_flag = p_src->arr[DCBX_PROTOCOL_FCOE].update;
 977         p_dest->update_fcoe_dcb_data_mode = update_flag;
 978 
 979         update_flag = p_src->arr[DCBX_PROTOCOL_ROCE].update;
 980         p_dest->update_roce_dcb_data_mode = update_flag;
 981 
 982         update_flag = p_src->arr[DCBX_PROTOCOL_ROCE_V2].update;
 983         p_dest->update_rroce_dcb_data_mode = update_flag;
 984 
 985         update_flag = p_src->arr[DCBX_PROTOCOL_ISCSI].update;
 986         p_dest->update_iscsi_dcb_data_mode = update_flag;
 987         update_flag = p_src->arr[DCBX_PROTOCOL_ETH].update;
 988         p_dest->update_eth_dcb_data_mode = update_flag;
 989 
 990         p_dcb_data = &p_dest->fcoe_dcb_data;
 991         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_FCOE);
 992         p_dcb_data = &p_dest->roce_dcb_data;
 993         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ROCE);
 994         p_dcb_data = &p_dest->rroce_dcb_data;
 995         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ROCE_V2);
 996         p_dcb_data = &p_dest->iscsi_dcb_data;
 997         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ISCSI);
 998         p_dcb_data = &p_dest->eth_dcb_data;
 999         qed_dcbx_update_protocol_data(p_dcb_data, p_src, DCBX_PROTOCOL_ETH);
1000 }
1001 
1002 u8 qed_dcbx_get_priority_tc(struct qed_hwfn *p_hwfn, u8 pri)
1003 {
1004         struct qed_dcbx_get *dcbx_info = &p_hwfn->p_dcbx_info->get;
1005 
1006         if (pri >= QED_MAX_PFC_PRIORITIES) {
1007                 DP_ERR(p_hwfn, "Invalid priority %d\n", pri);
1008                 return QED_DCBX_DEFAULT_TC;
1009         }
1010 
1011         if (!dcbx_info->operational.valid) {
1012                 DP_VERBOSE(p_hwfn, QED_MSG_DCB,
1013                            "Dcbx parameters not available\n");
1014                 return QED_DCBX_DEFAULT_TC;
1015         }
1016 
1017         return dcbx_info->operational.params.ets_pri_tc_tbl[pri];
1018 }
1019 
1020 #ifdef CONFIG_DCB
1021 static int qed_dcbx_query_params(struct qed_hwfn *p_hwfn,
1022                                  struct qed_dcbx_get *p_get,
1023                                  enum qed_mib_read_type type)
1024 {
1025         struct qed_ptt *p_ptt;
1026         int rc;
1027 
1028         if (IS_VF(p_hwfn->cdev))
1029                 return -EINVAL;
1030 
1031         p_ptt = qed_ptt_acquire(p_hwfn);
1032         if (!p_ptt)
1033                 return -EBUSY;
1034 
1035         rc = qed_dcbx_read_mib(p_hwfn, p_ptt, type);
1036         if (rc)
1037                 goto out;
1038 
1039         rc = qed_dcbx_get_params(p_hwfn, p_get, type);
1040 
1041 out:
1042         qed_ptt_release(p_hwfn, p_ptt);
1043         return rc;
1044 }
1045 
1046 static void
1047 qed_dcbx_set_pfc_data(struct qed_hwfn *p_hwfn,
1048                       u32 *pfc, struct qed_dcbx_params *p_params)
1049 {
1050         u8 pfc_map = 0;
1051         int i;
1052 
1053         *pfc &= ~DCBX_PFC_ERROR_MASK;
1054 
1055         if (p_params->pfc.willing)
1056                 *pfc |= DCBX_PFC_WILLING_MASK;
1057         else
1058                 *pfc &= ~DCBX_PFC_WILLING_MASK;
1059 
1060         if (p_params->pfc.enabled)
1061                 *pfc |= DCBX_PFC_ENABLED_MASK;
1062         else
1063                 *pfc &= ~DCBX_PFC_ENABLED_MASK;
1064 
1065         *pfc &= ~DCBX_PFC_CAPS_MASK;
1066         *pfc |= (u32)p_params->pfc.max_tc << DCBX_PFC_CAPS_SHIFT;
1067 
1068         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
1069                 if (p_params->pfc.prio[i])
1070                         pfc_map |= BIT(i);
1071 
1072         *pfc &= ~DCBX_PFC_PRI_EN_BITMAP_MASK;
1073         *pfc |= (pfc_map << DCBX_PFC_PRI_EN_BITMAP_SHIFT);
1074 
1075         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "pfc = 0x%x\n", *pfc);
1076 }
1077 
1078 static void
1079 qed_dcbx_set_ets_data(struct qed_hwfn *p_hwfn,
1080                       struct dcbx_ets_feature *p_ets,
1081                       struct qed_dcbx_params *p_params)
1082 {
1083         u8 *bw_map, *tsa_map;
1084         u32 val;
1085         int i;
1086 
1087         if (p_params->ets_willing)
1088                 p_ets->flags |= DCBX_ETS_WILLING_MASK;
1089         else
1090                 p_ets->flags &= ~DCBX_ETS_WILLING_MASK;
1091 
1092         if (p_params->ets_cbs)
1093                 p_ets->flags |= DCBX_ETS_CBS_MASK;
1094         else
1095                 p_ets->flags &= ~DCBX_ETS_CBS_MASK;
1096 
1097         if (p_params->ets_enabled)
1098                 p_ets->flags |= DCBX_ETS_ENABLED_MASK;
1099         else
1100                 p_ets->flags &= ~DCBX_ETS_ENABLED_MASK;
1101 
1102         p_ets->flags &= ~DCBX_ETS_MAX_TCS_MASK;
1103         p_ets->flags |= (u32)p_params->max_ets_tc << DCBX_ETS_MAX_TCS_SHIFT;
1104 
1105         bw_map = (u8 *)&p_ets->tc_bw_tbl[0];
1106         tsa_map = (u8 *)&p_ets->tc_tsa_tbl[0];
1107         p_ets->pri_tc_tbl[0] = 0;
1108         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
1109                 bw_map[i] = p_params->ets_tc_bw_tbl[i];
1110                 tsa_map[i] = p_params->ets_tc_tsa_tbl[i];
1111                 /* Copy the priority value to the corresponding 4 bits in the
1112                  * traffic class table.
1113                  */
1114                 val = (((u32)p_params->ets_pri_tc_tbl[i]) << ((7 - i) * 4));
1115                 p_ets->pri_tc_tbl[0] |= val;
1116         }
1117         for (i = 0; i < 2; i++) {
1118                 p_ets->tc_bw_tbl[i] = cpu_to_be32(p_ets->tc_bw_tbl[i]);
1119                 p_ets->tc_tsa_tbl[i] = cpu_to_be32(p_ets->tc_tsa_tbl[i]);
1120         }
1121 }
1122 
1123 static void
1124 qed_dcbx_set_app_data(struct qed_hwfn *p_hwfn,
1125                       struct dcbx_app_priority_feature *p_app,
1126                       struct qed_dcbx_params *p_params, bool ieee)
1127 {
1128         u32 *entry;
1129         int i;
1130 
1131         if (p_params->app_willing)
1132                 p_app->flags |= DCBX_APP_WILLING_MASK;
1133         else
1134                 p_app->flags &= ~DCBX_APP_WILLING_MASK;
1135 
1136         if (p_params->app_valid)
1137                 p_app->flags |= DCBX_APP_ENABLED_MASK;
1138         else
1139                 p_app->flags &= ~DCBX_APP_ENABLED_MASK;
1140 
1141         p_app->flags &= ~DCBX_APP_NUM_ENTRIES_MASK;
1142         p_app->flags |= (u32)p_params->num_app_entries <<
1143             DCBX_APP_NUM_ENTRIES_SHIFT;
1144 
1145         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
1146                 entry = &p_app->app_pri_tbl[i].entry;
1147                 *entry = 0;
1148                 if (ieee) {
1149                         *entry &= ~(DCBX_APP_SF_IEEE_MASK | DCBX_APP_SF_MASK);
1150                         switch (p_params->app_entry[i].sf_ieee) {
1151                         case QED_DCBX_SF_IEEE_ETHTYPE:
1152                                 *entry |= ((u32)DCBX_APP_SF_IEEE_ETHTYPE <<
1153                                            DCBX_APP_SF_IEEE_SHIFT);
1154                                 *entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
1155                                            DCBX_APP_SF_SHIFT);
1156                                 break;
1157                         case QED_DCBX_SF_IEEE_TCP_PORT:
1158                                 *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_PORT <<
1159                                            DCBX_APP_SF_IEEE_SHIFT);
1160                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1161                                            DCBX_APP_SF_SHIFT);
1162                                 break;
1163                         case QED_DCBX_SF_IEEE_UDP_PORT:
1164                                 *entry |= ((u32)DCBX_APP_SF_IEEE_UDP_PORT <<
1165                                            DCBX_APP_SF_IEEE_SHIFT);
1166                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1167                                            DCBX_APP_SF_SHIFT);
1168                                 break;
1169                         case QED_DCBX_SF_IEEE_TCP_UDP_PORT:
1170                                 *entry |= ((u32)DCBX_APP_SF_IEEE_TCP_UDP_PORT <<
1171                                            DCBX_APP_SF_IEEE_SHIFT);
1172                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1173                                            DCBX_APP_SF_SHIFT);
1174                                 break;
1175                         }
1176                 } else {
1177                         *entry &= ~DCBX_APP_SF_MASK;
1178                         if (p_params->app_entry[i].ethtype)
1179                                 *entry |= ((u32)DCBX_APP_SF_ETHTYPE <<
1180                                            DCBX_APP_SF_SHIFT);
1181                         else
1182                                 *entry |= ((u32)DCBX_APP_SF_PORT <<
1183                                            DCBX_APP_SF_SHIFT);
1184                 }
1185 
1186                 *entry &= ~DCBX_APP_PROTOCOL_ID_MASK;
1187                 *entry |= ((u32)p_params->app_entry[i].proto_id <<
1188                            DCBX_APP_PROTOCOL_ID_SHIFT);
1189                 *entry &= ~DCBX_APP_PRI_MAP_MASK;
1190                 *entry |= ((u32)(p_params->app_entry[i].prio) <<
1191                            DCBX_APP_PRI_MAP_SHIFT);
1192         }
1193 }
1194 
1195 static void
1196 qed_dcbx_set_local_params(struct qed_hwfn *p_hwfn,
1197                           struct dcbx_local_params *local_admin,
1198                           struct qed_dcbx_set *params)
1199 {
1200         bool ieee = false;
1201 
1202         local_admin->flags = 0;
1203         memcpy(&local_admin->features,
1204                &p_hwfn->p_dcbx_info->operational.features,
1205                sizeof(local_admin->features));
1206 
1207         if (params->enabled) {
1208                 local_admin->config = params->ver_num;
1209                 ieee = !!(params->ver_num & DCBX_CONFIG_VERSION_IEEE);
1210         } else {
1211                 local_admin->config = DCBX_CONFIG_VERSION_DISABLED;
1212         }
1213 
1214         DP_VERBOSE(p_hwfn, QED_MSG_DCB, "Dcbx version = %d\n",
1215                    local_admin->config);
1216 
1217         if (params->override_flags & QED_DCBX_OVERRIDE_PFC_CFG)
1218                 qed_dcbx_set_pfc_data(p_hwfn, &local_admin->features.pfc,
1219                                       &params->config.params);
1220 
1221         if (params->override_flags & QED_DCBX_OVERRIDE_ETS_CFG)
1222                 qed_dcbx_set_ets_data(p_hwfn, &local_admin->features.ets,
1223                                       &params->config.params);
1224 
1225         if (params->override_flags & QED_DCBX_OVERRIDE_APP_CFG)
1226                 qed_dcbx_set_app_data(p_hwfn, &local_admin->features.app,
1227                                       &params->config.params, ieee);
1228 }
1229 
1230 int qed_dcbx_config_params(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
1231                            struct qed_dcbx_set *params, bool hw_commit)
1232 {
1233         struct dcbx_local_params local_admin;
1234         struct qed_dcbx_mib_meta_data data;
1235         u32 resp = 0, param = 0;
1236         int rc = 0;
1237 
1238         if (!hw_commit) {
1239                 memcpy(&p_hwfn->p_dcbx_info->set, params,
1240                        sizeof(struct qed_dcbx_set));
1241                 return 0;
1242         }
1243 
1244         /* clear set-parmas cache */
1245         memset(&p_hwfn->p_dcbx_info->set, 0, sizeof(p_hwfn->p_dcbx_info->set));
1246 
1247         memset(&local_admin, 0, sizeof(local_admin));
1248         qed_dcbx_set_local_params(p_hwfn, &local_admin, params);
1249 
1250         data.addr = p_hwfn->mcp_info->port_addr +
1251             offsetof(struct public_port, local_admin_dcbx_mib);
1252         data.local_admin = &local_admin;
1253         data.size = sizeof(struct dcbx_local_params);
1254         qed_memcpy_to(p_hwfn, p_ptt, data.addr, data.local_admin, data.size);
1255 
1256         rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_SET_DCBX,
1257                          1 << DRV_MB_PARAM_LLDP_SEND_SHIFT, &resp, &param);
1258         if (rc)
1259                 DP_NOTICE(p_hwfn, "Failed to send DCBX update request\n");
1260 
1261         return rc;
1262 }
1263 
1264 int qed_dcbx_get_config_params(struct qed_hwfn *p_hwfn,
1265                                struct qed_dcbx_set *params)
1266 {
1267         struct qed_dcbx_get *dcbx_info;
1268         int rc;
1269 
1270         if (p_hwfn->p_dcbx_info->set.config.valid) {
1271                 memcpy(params, &p_hwfn->p_dcbx_info->set,
1272                        sizeof(struct qed_dcbx_set));
1273                 return 0;
1274         }
1275 
1276         dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_KERNEL);
1277         if (!dcbx_info)
1278                 return -ENOMEM;
1279 
1280         rc = qed_dcbx_query_params(p_hwfn, dcbx_info, QED_DCBX_OPERATIONAL_MIB);
1281         if (rc) {
1282                 kfree(dcbx_info);
1283                 return rc;
1284         }
1285 
1286         p_hwfn->p_dcbx_info->set.override_flags = 0;
1287         p_hwfn->p_dcbx_info->set.ver_num = DCBX_CONFIG_VERSION_DISABLED;
1288         if (dcbx_info->operational.cee)
1289                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1290         if (dcbx_info->operational.ieee)
1291                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1292         if (dcbx_info->operational.local)
1293                 p_hwfn->p_dcbx_info->set.ver_num |= DCBX_CONFIG_VERSION_STATIC;
1294 
1295         p_hwfn->p_dcbx_info->set.enabled = dcbx_info->operational.enabled;
1296         memcpy(&p_hwfn->p_dcbx_info->set.config.params,
1297                &dcbx_info->operational.params,
1298                sizeof(struct qed_dcbx_admin_params));
1299         p_hwfn->p_dcbx_info->set.config.valid = true;
1300 
1301         memcpy(params, &p_hwfn->p_dcbx_info->set, sizeof(struct qed_dcbx_set));
1302 
1303         kfree(dcbx_info);
1304 
1305         return 0;
1306 }
1307 
1308 static struct qed_dcbx_get *qed_dcbnl_get_dcbx(struct qed_hwfn *hwfn,
1309                                                enum qed_mib_read_type type)
1310 {
1311         struct qed_dcbx_get *dcbx_info;
1312 
1313         dcbx_info = kzalloc(sizeof(*dcbx_info), GFP_ATOMIC);
1314         if (!dcbx_info)
1315                 return NULL;
1316 
1317         if (qed_dcbx_query_params(hwfn, dcbx_info, type)) {
1318                 kfree(dcbx_info);
1319                 return NULL;
1320         }
1321 
1322         if ((type == QED_DCBX_OPERATIONAL_MIB) &&
1323             !dcbx_info->operational.enabled) {
1324                 DP_INFO(hwfn, "DCBX is not enabled/operational\n");
1325                 kfree(dcbx_info);
1326                 return NULL;
1327         }
1328 
1329         return dcbx_info;
1330 }
1331 
1332 static u8 qed_dcbnl_getstate(struct qed_dev *cdev)
1333 {
1334         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1335         struct qed_dcbx_get *dcbx_info;
1336         bool enabled;
1337 
1338         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1339         if (!dcbx_info)
1340                 return 0;
1341 
1342         enabled = dcbx_info->operational.enabled;
1343         DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", enabled);
1344         kfree(dcbx_info);
1345 
1346         return enabled;
1347 }
1348 
1349 static u8 qed_dcbnl_setstate(struct qed_dev *cdev, u8 state)
1350 {
1351         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1352         struct qed_dcbx_set dcbx_set;
1353         struct qed_ptt *ptt;
1354         int rc;
1355 
1356         DP_VERBOSE(hwfn, QED_MSG_DCB, "DCB state = %d\n", state);
1357 
1358         memset(&dcbx_set, 0, sizeof(dcbx_set));
1359         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1360         if (rc)
1361                 return 1;
1362 
1363         dcbx_set.enabled = !!state;
1364 
1365         ptt = qed_ptt_acquire(hwfn);
1366         if (!ptt)
1367                 return 1;
1368 
1369         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1370 
1371         qed_ptt_release(hwfn, ptt);
1372 
1373         return rc ? 1 : 0;
1374 }
1375 
1376 static void qed_dcbnl_getpgtccfgtx(struct qed_dev *cdev, int tc, u8 *prio_type,
1377                                    u8 *pgid, u8 *bw_pct, u8 *up_map)
1378 {
1379         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1380         struct qed_dcbx_get *dcbx_info;
1381 
1382         DP_VERBOSE(hwfn, QED_MSG_DCB, "tc = %d\n", tc);
1383         *prio_type = *pgid = *bw_pct = *up_map = 0;
1384         if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
1385                 DP_INFO(hwfn, "Invalid tc %d\n", tc);
1386                 return;
1387         }
1388 
1389         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1390         if (!dcbx_info)
1391                 return;
1392 
1393         *pgid = dcbx_info->operational.params.ets_pri_tc_tbl[tc];
1394         kfree(dcbx_info);
1395 }
1396 
1397 static void qed_dcbnl_getpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 *bw_pct)
1398 {
1399         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1400         struct qed_dcbx_get *dcbx_info;
1401 
1402         *bw_pct = 0;
1403         DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d\n", pgid);
1404         if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
1405                 DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
1406                 return;
1407         }
1408 
1409         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1410         if (!dcbx_info)
1411                 return;
1412 
1413         *bw_pct = dcbx_info->operational.params.ets_tc_bw_tbl[pgid];
1414         DP_VERBOSE(hwfn, QED_MSG_DCB, "bw_pct = %d\n", *bw_pct);
1415         kfree(dcbx_info);
1416 }
1417 
1418 static void qed_dcbnl_getpgtccfgrx(struct qed_dev *cdev, int tc, u8 *prio,
1419                                    u8 *bwg_id, u8 *bw_pct, u8 *up_map)
1420 {
1421         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1422         *prio = *bwg_id = *bw_pct = *up_map = 0;
1423 }
1424 
1425 static void qed_dcbnl_getpgbwgcfgrx(struct qed_dev *cdev,
1426                                     int bwg_id, u8 *bw_pct)
1427 {
1428         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1429         *bw_pct = 0;
1430 }
1431 
1432 static void qed_dcbnl_getpfccfg(struct qed_dev *cdev,
1433                                 int priority, u8 *setting)
1434 {
1435         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1436         struct qed_dcbx_get *dcbx_info;
1437 
1438         DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d\n", priority);
1439         if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
1440                 DP_INFO(hwfn, "Invalid priority %d\n", priority);
1441                 return;
1442         }
1443 
1444         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1445         if (!dcbx_info)
1446                 return;
1447 
1448         *setting = dcbx_info->operational.params.pfc.prio[priority];
1449         DP_VERBOSE(hwfn, QED_MSG_DCB, "setting = %d\n", *setting);
1450         kfree(dcbx_info);
1451 }
1452 
1453 static void qed_dcbnl_setpfccfg(struct qed_dev *cdev, int priority, u8 setting)
1454 {
1455         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1456         struct qed_dcbx_set dcbx_set;
1457         struct qed_ptt *ptt;
1458         int rc;
1459 
1460         DP_VERBOSE(hwfn, QED_MSG_DCB, "priority = %d setting = %d\n",
1461                    priority, setting);
1462         if (priority < 0 || priority >= QED_MAX_PFC_PRIORITIES) {
1463                 DP_INFO(hwfn, "Invalid priority %d\n", priority);
1464                 return;
1465         }
1466 
1467         memset(&dcbx_set, 0, sizeof(dcbx_set));
1468         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1469         if (rc)
1470                 return;
1471 
1472         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1473         dcbx_set.config.params.pfc.prio[priority] = !!setting;
1474 
1475         ptt = qed_ptt_acquire(hwfn);
1476         if (!ptt)
1477                 return;
1478 
1479         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1480 
1481         qed_ptt_release(hwfn, ptt);
1482 }
1483 
1484 static u8 qed_dcbnl_getcap(struct qed_dev *cdev, int capid, u8 *cap)
1485 {
1486         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1487         struct qed_dcbx_get *dcbx_info;
1488         int rc = 0;
1489 
1490         DP_VERBOSE(hwfn, QED_MSG_DCB, "capid = %d\n", capid);
1491         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1492         if (!dcbx_info)
1493                 return 1;
1494 
1495         switch (capid) {
1496         case DCB_CAP_ATTR_PG:
1497         case DCB_CAP_ATTR_PFC:
1498         case DCB_CAP_ATTR_UP2TC:
1499         case DCB_CAP_ATTR_GSP:
1500                 *cap = true;
1501                 break;
1502         case DCB_CAP_ATTR_PG_TCS:
1503         case DCB_CAP_ATTR_PFC_TCS:
1504                 *cap = 0x80;
1505                 break;
1506         case DCB_CAP_ATTR_DCBX:
1507                 *cap = (DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_VER_IEEE |
1508                         DCB_CAP_DCBX_STATIC);
1509                 break;
1510         default:
1511                 *cap = false;
1512                 rc = 1;
1513         }
1514 
1515         DP_VERBOSE(hwfn, QED_MSG_DCB, "id = %d caps = %d\n", capid, *cap);
1516         kfree(dcbx_info);
1517 
1518         return rc;
1519 }
1520 
1521 static int qed_dcbnl_getnumtcs(struct qed_dev *cdev, int tcid, u8 *num)
1522 {
1523         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1524         struct qed_dcbx_get *dcbx_info;
1525         int rc = 0;
1526 
1527         DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d\n", tcid);
1528         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1529         if (!dcbx_info)
1530                 return -EINVAL;
1531 
1532         switch (tcid) {
1533         case DCB_NUMTCS_ATTR_PG:
1534                 *num = dcbx_info->operational.params.max_ets_tc;
1535                 break;
1536         case DCB_NUMTCS_ATTR_PFC:
1537                 *num = dcbx_info->operational.params.pfc.max_tc;
1538                 break;
1539         default:
1540                 rc = -EINVAL;
1541         }
1542 
1543         kfree(dcbx_info);
1544         DP_VERBOSE(hwfn, QED_MSG_DCB, "numtcs = %d\n", *num);
1545 
1546         return rc;
1547 }
1548 
1549 static u8 qed_dcbnl_getpfcstate(struct qed_dev *cdev)
1550 {
1551         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1552         struct qed_dcbx_get *dcbx_info;
1553         bool enabled;
1554 
1555         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1556         if (!dcbx_info)
1557                 return 0;
1558 
1559         enabled = dcbx_info->operational.params.pfc.enabled;
1560         DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d\n", enabled);
1561         kfree(dcbx_info);
1562 
1563         return enabled;
1564 }
1565 
1566 static u8 qed_dcbnl_getdcbx(struct qed_dev *cdev)
1567 {
1568         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1569         struct qed_dcbx_get *dcbx_info;
1570         u8 mode = 0;
1571 
1572         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1573         if (!dcbx_info)
1574                 return 0;
1575 
1576         if (dcbx_info->operational.ieee)
1577                 mode |= DCB_CAP_DCBX_VER_IEEE;
1578         if (dcbx_info->operational.cee)
1579                 mode |= DCB_CAP_DCBX_VER_CEE;
1580         if (dcbx_info->operational.local)
1581                 mode |= DCB_CAP_DCBX_STATIC;
1582 
1583         DP_VERBOSE(hwfn, QED_MSG_DCB, "dcb mode = %d\n", mode);
1584         kfree(dcbx_info);
1585 
1586         return mode;
1587 }
1588 
1589 static void qed_dcbnl_setpgtccfgtx(struct qed_dev *cdev,
1590                                    int tc,
1591                                    u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
1592 {
1593         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1594         struct qed_dcbx_set dcbx_set;
1595         struct qed_ptt *ptt;
1596         int rc;
1597 
1598         DP_VERBOSE(hwfn, QED_MSG_DCB,
1599                    "tc = %d pri_type = %d pgid = %d bw_pct = %d up_map = %d\n",
1600                    tc, pri_type, pgid, bw_pct, up_map);
1601 
1602         if (tc < 0 || tc >= QED_MAX_PFC_PRIORITIES) {
1603                 DP_INFO(hwfn, "Invalid tc %d\n", tc);
1604                 return;
1605         }
1606 
1607         memset(&dcbx_set, 0, sizeof(dcbx_set));
1608         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1609         if (rc)
1610                 return;
1611 
1612         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1613         dcbx_set.config.params.ets_pri_tc_tbl[tc] = pgid;
1614 
1615         ptt = qed_ptt_acquire(hwfn);
1616         if (!ptt)
1617                 return;
1618 
1619         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1620 
1621         qed_ptt_release(hwfn, ptt);
1622 }
1623 
1624 static void qed_dcbnl_setpgtccfgrx(struct qed_dev *cdev, int prio,
1625                                    u8 pri_type, u8 pgid, u8 bw_pct, u8 up_map)
1626 {
1627         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1628 }
1629 
1630 static void qed_dcbnl_setpgbwgcfgtx(struct qed_dev *cdev, int pgid, u8 bw_pct)
1631 {
1632         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1633         struct qed_dcbx_set dcbx_set;
1634         struct qed_ptt *ptt;
1635         int rc;
1636 
1637         DP_VERBOSE(hwfn, QED_MSG_DCB, "pgid = %d bw_pct = %d\n", pgid, bw_pct);
1638         if (pgid < 0 || pgid >= QED_MAX_PFC_PRIORITIES) {
1639                 DP_INFO(hwfn, "Invalid pgid %d\n", pgid);
1640                 return;
1641         }
1642 
1643         memset(&dcbx_set, 0, sizeof(dcbx_set));
1644         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1645         if (rc)
1646                 return;
1647 
1648         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1649         dcbx_set.config.params.ets_tc_bw_tbl[pgid] = bw_pct;
1650 
1651         ptt = qed_ptt_acquire(hwfn);
1652         if (!ptt)
1653                 return;
1654 
1655         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1656 
1657         qed_ptt_release(hwfn, ptt);
1658 }
1659 
1660 static void qed_dcbnl_setpgbwgcfgrx(struct qed_dev *cdev, int pgid, u8 bw_pct)
1661 {
1662         DP_INFO(QED_LEADING_HWFN(cdev), "Rx ETS is not supported\n");
1663 }
1664 
1665 static u8 qed_dcbnl_setall(struct qed_dev *cdev)
1666 {
1667         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1668         struct qed_dcbx_set dcbx_set;
1669         struct qed_ptt *ptt;
1670         int rc;
1671 
1672         memset(&dcbx_set, 0, sizeof(dcbx_set));
1673         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1674         if (rc)
1675                 return 1;
1676 
1677         ptt = qed_ptt_acquire(hwfn);
1678         if (!ptt)
1679                 return 1;
1680 
1681         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 1);
1682 
1683         qed_ptt_release(hwfn, ptt);
1684 
1685         return rc;
1686 }
1687 
1688 static int qed_dcbnl_setnumtcs(struct qed_dev *cdev, int tcid, u8 num)
1689 {
1690         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1691         struct qed_dcbx_set dcbx_set;
1692         struct qed_ptt *ptt;
1693         int rc;
1694 
1695         DP_VERBOSE(hwfn, QED_MSG_DCB, "tcid = %d num = %d\n", tcid, num);
1696         memset(&dcbx_set, 0, sizeof(dcbx_set));
1697         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1698         if (rc)
1699                 return 1;
1700 
1701         switch (tcid) {
1702         case DCB_NUMTCS_ATTR_PG:
1703                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1704                 dcbx_set.config.params.max_ets_tc = num;
1705                 break;
1706         case DCB_NUMTCS_ATTR_PFC:
1707                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1708                 dcbx_set.config.params.pfc.max_tc = num;
1709                 break;
1710         default:
1711                 DP_INFO(hwfn, "Invalid tcid %d\n", tcid);
1712                 return -EINVAL;
1713         }
1714 
1715         ptt = qed_ptt_acquire(hwfn);
1716         if (!ptt)
1717                 return -EINVAL;
1718 
1719         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1720 
1721         qed_ptt_release(hwfn, ptt);
1722 
1723         return 0;
1724 }
1725 
1726 static void qed_dcbnl_setpfcstate(struct qed_dev *cdev, u8 state)
1727 {
1728         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1729         struct qed_dcbx_set dcbx_set;
1730         struct qed_ptt *ptt;
1731         int rc;
1732 
1733         DP_VERBOSE(hwfn, QED_MSG_DCB, "new state = %d\n", state);
1734 
1735         memset(&dcbx_set, 0, sizeof(dcbx_set));
1736         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1737         if (rc)
1738                 return;
1739 
1740         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1741         dcbx_set.config.params.pfc.enabled = !!state;
1742 
1743         ptt = qed_ptt_acquire(hwfn);
1744         if (!ptt)
1745                 return;
1746 
1747         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1748 
1749         qed_ptt_release(hwfn, ptt);
1750 }
1751 
1752 static int qed_dcbnl_getapp(struct qed_dev *cdev, u8 idtype, u16 idval)
1753 {
1754         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1755         struct qed_dcbx_get *dcbx_info;
1756         struct qed_app_entry *entry;
1757         bool ethtype;
1758         u8 prio = 0;
1759         int i;
1760 
1761         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1762         if (!dcbx_info)
1763                 return -EINVAL;
1764 
1765         ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
1766         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
1767                 entry = &dcbx_info->operational.params.app_entry[i];
1768                 if ((entry->ethtype == ethtype) && (entry->proto_id == idval)) {
1769                         prio = entry->prio;
1770                         break;
1771                 }
1772         }
1773 
1774         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
1775                 DP_ERR(cdev, "App entry (%d, %d) not found\n", idtype, idval);
1776                 kfree(dcbx_info);
1777                 return -EINVAL;
1778         }
1779 
1780         kfree(dcbx_info);
1781 
1782         return prio;
1783 }
1784 
1785 static int qed_dcbnl_setapp(struct qed_dev *cdev,
1786                             u8 idtype, u16 idval, u8 pri_map)
1787 {
1788         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1789         struct qed_dcbx_set dcbx_set;
1790         struct qed_app_entry *entry;
1791         struct qed_ptt *ptt;
1792         bool ethtype;
1793         int rc, i;
1794 
1795         memset(&dcbx_set, 0, sizeof(dcbx_set));
1796         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1797         if (rc)
1798                 return -EINVAL;
1799 
1800         ethtype = !!(idtype == DCB_APP_IDTYPE_ETHTYPE);
1801         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
1802                 entry = &dcbx_set.config.params.app_entry[i];
1803                 if ((entry->ethtype == ethtype) && (entry->proto_id == idval))
1804                         break;
1805                 /* First empty slot */
1806                 if (!entry->proto_id) {
1807                         dcbx_set.config.params.num_app_entries++;
1808                         break;
1809                 }
1810         }
1811 
1812         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
1813                 DP_ERR(cdev, "App table is full\n");
1814                 return -EBUSY;
1815         }
1816 
1817         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
1818         dcbx_set.config.params.app_entry[i].ethtype = ethtype;
1819         dcbx_set.config.params.app_entry[i].proto_id = idval;
1820         dcbx_set.config.params.app_entry[i].prio = pri_map;
1821 
1822         ptt = qed_ptt_acquire(hwfn);
1823         if (!ptt)
1824                 return -EBUSY;
1825 
1826         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1827 
1828         qed_ptt_release(hwfn, ptt);
1829 
1830         return rc;
1831 }
1832 
1833 static u8 qed_dcbnl_setdcbx(struct qed_dev *cdev, u8 mode)
1834 {
1835         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1836         struct qed_dcbx_set dcbx_set;
1837         struct qed_ptt *ptt;
1838         int rc;
1839 
1840         DP_VERBOSE(hwfn, QED_MSG_DCB, "new mode = %x\n", mode);
1841 
1842         if (!(mode & DCB_CAP_DCBX_VER_IEEE) &&
1843             !(mode & DCB_CAP_DCBX_VER_CEE) && !(mode & DCB_CAP_DCBX_STATIC)) {
1844                 DP_INFO(hwfn, "Allowed modes are cee, ieee or static\n");
1845                 return 1;
1846         }
1847 
1848         memset(&dcbx_set, 0, sizeof(dcbx_set));
1849         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1850         if (rc)
1851                 return 1;
1852 
1853         dcbx_set.ver_num = 0;
1854         if (mode & DCB_CAP_DCBX_VER_CEE) {
1855                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_CEE;
1856                 dcbx_set.enabled = true;
1857         }
1858 
1859         if (mode & DCB_CAP_DCBX_VER_IEEE) {
1860                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_IEEE;
1861                 dcbx_set.enabled = true;
1862         }
1863 
1864         if (mode & DCB_CAP_DCBX_STATIC) {
1865                 dcbx_set.ver_num |= DCBX_CONFIG_VERSION_STATIC;
1866                 dcbx_set.enabled = true;
1867         }
1868 
1869         ptt = qed_ptt_acquire(hwfn);
1870         if (!ptt)
1871                 return 1;
1872 
1873         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1874 
1875         qed_ptt_release(hwfn, ptt);
1876 
1877         return rc;
1878 }
1879 
1880 static u8 qed_dcbnl_getfeatcfg(struct qed_dev *cdev, int featid, u8 *flags)
1881 {
1882         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1883         struct qed_dcbx_get *dcbx_info;
1884 
1885         DP_VERBOSE(hwfn, QED_MSG_DCB, "Feature id  = %d\n", featid);
1886         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
1887         if (!dcbx_info)
1888                 return 1;
1889 
1890         *flags = 0;
1891         switch (featid) {
1892         case DCB_FEATCFG_ATTR_PG:
1893                 if (dcbx_info->operational.params.ets_enabled)
1894                         *flags = DCB_FEATCFG_ENABLE;
1895                 else
1896                         *flags = DCB_FEATCFG_ERROR;
1897                 break;
1898         case DCB_FEATCFG_ATTR_PFC:
1899                 if (dcbx_info->operational.params.pfc.enabled)
1900                         *flags = DCB_FEATCFG_ENABLE;
1901                 else
1902                         *flags = DCB_FEATCFG_ERROR;
1903                 break;
1904         case DCB_FEATCFG_ATTR_APP:
1905                 if (dcbx_info->operational.params.app_valid)
1906                         *flags = DCB_FEATCFG_ENABLE;
1907                 else
1908                         *flags = DCB_FEATCFG_ERROR;
1909                 break;
1910         default:
1911                 DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
1912                 kfree(dcbx_info);
1913                 return 1;
1914         }
1915 
1916         DP_VERBOSE(hwfn, QED_MSG_DCB, "flags = %d\n", *flags);
1917         kfree(dcbx_info);
1918 
1919         return 0;
1920 }
1921 
1922 static u8 qed_dcbnl_setfeatcfg(struct qed_dev *cdev, int featid, u8 flags)
1923 {
1924         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1925         struct qed_dcbx_set dcbx_set;
1926         bool enabled, willing;
1927         struct qed_ptt *ptt;
1928         int rc;
1929 
1930         DP_VERBOSE(hwfn, QED_MSG_DCB, "featid = %d flags = %d\n",
1931                    featid, flags);
1932         memset(&dcbx_set, 0, sizeof(dcbx_set));
1933         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
1934         if (rc)
1935                 return 1;
1936 
1937         enabled = !!(flags & DCB_FEATCFG_ENABLE);
1938         willing = !!(flags & DCB_FEATCFG_WILLING);
1939         switch (featid) {
1940         case DCB_FEATCFG_ATTR_PG:
1941                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
1942                 dcbx_set.config.params.ets_enabled = enabled;
1943                 dcbx_set.config.params.ets_willing = willing;
1944                 break;
1945         case DCB_FEATCFG_ATTR_PFC:
1946                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
1947                 dcbx_set.config.params.pfc.enabled = enabled;
1948                 dcbx_set.config.params.pfc.willing = willing;
1949                 break;
1950         case DCB_FEATCFG_ATTR_APP:
1951                 dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
1952                 dcbx_set.config.params.app_willing = willing;
1953                 break;
1954         default:
1955                 DP_INFO(hwfn, "Invalid feature-ID %d\n", featid);
1956                 return 1;
1957         }
1958 
1959         ptt = qed_ptt_acquire(hwfn);
1960         if (!ptt)
1961                 return 1;
1962 
1963         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
1964 
1965         qed_ptt_release(hwfn, ptt);
1966 
1967         return 0;
1968 }
1969 
1970 static int qed_dcbnl_peer_getappinfo(struct qed_dev *cdev,
1971                                      struct dcb_peer_app_info *info,
1972                                      u16 *app_count)
1973 {
1974         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1975         struct qed_dcbx_get *dcbx_info;
1976 
1977         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1978         if (!dcbx_info)
1979                 return -EINVAL;
1980 
1981         info->willing = dcbx_info->remote.params.app_willing;
1982         info->error = dcbx_info->remote.params.app_error;
1983         *app_count = dcbx_info->remote.params.num_app_entries;
1984         kfree(dcbx_info);
1985 
1986         return 0;
1987 }
1988 
1989 static int qed_dcbnl_peer_getapptable(struct qed_dev *cdev,
1990                                       struct dcb_app *table)
1991 {
1992         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
1993         struct qed_dcbx_get *dcbx_info;
1994         int i;
1995 
1996         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
1997         if (!dcbx_info)
1998                 return -EINVAL;
1999 
2000         for (i = 0; i < dcbx_info->remote.params.num_app_entries; i++) {
2001                 if (dcbx_info->remote.params.app_entry[i].ethtype)
2002                         table[i].selector = DCB_APP_IDTYPE_ETHTYPE;
2003                 else
2004                         table[i].selector = DCB_APP_IDTYPE_PORTNUM;
2005                 table[i].priority = dcbx_info->remote.params.app_entry[i].prio;
2006                 table[i].protocol =
2007                     dcbx_info->remote.params.app_entry[i].proto_id;
2008         }
2009 
2010         kfree(dcbx_info);
2011 
2012         return 0;
2013 }
2014 
2015 static int qed_dcbnl_cee_peer_getpfc(struct qed_dev *cdev, struct cee_pfc *pfc)
2016 {
2017         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2018         struct qed_dcbx_get *dcbx_info;
2019         int i;
2020 
2021         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
2022         if (!dcbx_info)
2023                 return -EINVAL;
2024 
2025         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2026                 if (dcbx_info->remote.params.pfc.prio[i])
2027                         pfc->pfc_en |= BIT(i);
2028 
2029         pfc->tcs_supported = dcbx_info->remote.params.pfc.max_tc;
2030         DP_VERBOSE(hwfn, QED_MSG_DCB, "pfc state = %d tcs_supported = %d\n",
2031                    pfc->pfc_en, pfc->tcs_supported);
2032         kfree(dcbx_info);
2033 
2034         return 0;
2035 }
2036 
2037 static int qed_dcbnl_cee_peer_getpg(struct qed_dev *cdev, struct cee_pg *pg)
2038 {
2039         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2040         struct qed_dcbx_get *dcbx_info;
2041         int i;
2042 
2043         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_REMOTE_MIB);
2044         if (!dcbx_info)
2045                 return -EINVAL;
2046 
2047         pg->willing = dcbx_info->remote.params.ets_willing;
2048         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++) {
2049                 pg->pg_bw[i] = dcbx_info->remote.params.ets_tc_bw_tbl[i];
2050                 pg->prio_pg[i] = dcbx_info->remote.params.ets_pri_tc_tbl[i];
2051         }
2052 
2053         DP_VERBOSE(hwfn, QED_MSG_DCB, "willing = %d", pg->willing);
2054         kfree(dcbx_info);
2055 
2056         return 0;
2057 }
2058 
2059 static int qed_dcbnl_get_ieee_pfc(struct qed_dev *cdev,
2060                                   struct ieee_pfc *pfc, bool remote)
2061 {
2062         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2063         struct qed_dcbx_params *params;
2064         struct qed_dcbx_get *dcbx_info;
2065         int rc, i;
2066 
2067         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2068         if (!dcbx_info)
2069                 return -EINVAL;
2070 
2071         if (!dcbx_info->operational.ieee) {
2072                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2073                 kfree(dcbx_info);
2074                 return -EINVAL;
2075         }
2076 
2077         if (remote) {
2078                 memset(dcbx_info, 0, sizeof(*dcbx_info));
2079                 rc = qed_dcbx_query_params(hwfn, dcbx_info,
2080                                            QED_DCBX_REMOTE_MIB);
2081                 if (rc) {
2082                         kfree(dcbx_info);
2083                         return -EINVAL;
2084                 }
2085 
2086                 params = &dcbx_info->remote.params;
2087         } else {
2088                 params = &dcbx_info->operational.params;
2089         }
2090 
2091         pfc->pfc_cap = params->pfc.max_tc;
2092         pfc->pfc_en = 0;
2093         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2094                 if (params->pfc.prio[i])
2095                         pfc->pfc_en |= BIT(i);
2096 
2097         kfree(dcbx_info);
2098 
2099         return 0;
2100 }
2101 
2102 static int qed_dcbnl_ieee_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2103 {
2104         return qed_dcbnl_get_ieee_pfc(cdev, pfc, false);
2105 }
2106 
2107 static int qed_dcbnl_ieee_setpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2108 {
2109         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2110         struct qed_dcbx_get *dcbx_info;
2111         struct qed_dcbx_set dcbx_set;
2112         struct qed_ptt *ptt;
2113         int rc, i;
2114 
2115         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2116         if (!dcbx_info)
2117                 return -EINVAL;
2118 
2119         if (!dcbx_info->operational.ieee) {
2120                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2121                 kfree(dcbx_info);
2122                 return -EINVAL;
2123         }
2124 
2125         kfree(dcbx_info);
2126 
2127         memset(&dcbx_set, 0, sizeof(dcbx_set));
2128         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2129         if (rc)
2130                 return -EINVAL;
2131 
2132         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_PFC_CFG;
2133         for (i = 0; i < QED_MAX_PFC_PRIORITIES; i++)
2134                 dcbx_set.config.params.pfc.prio[i] = !!(pfc->pfc_en & BIT(i));
2135 
2136         dcbx_set.config.params.pfc.max_tc = pfc->pfc_cap;
2137 
2138         ptt = qed_ptt_acquire(hwfn);
2139         if (!ptt)
2140                 return -EINVAL;
2141 
2142         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2143 
2144         qed_ptt_release(hwfn, ptt);
2145 
2146         return rc;
2147 }
2148 
2149 static int qed_dcbnl_get_ieee_ets(struct qed_dev *cdev,
2150                                   struct ieee_ets *ets, bool remote)
2151 {
2152         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2153         struct qed_dcbx_get *dcbx_info;
2154         struct qed_dcbx_params *params;
2155         int rc;
2156 
2157         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2158         if (!dcbx_info)
2159                 return -EINVAL;
2160 
2161         if (!dcbx_info->operational.ieee) {
2162                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2163                 kfree(dcbx_info);
2164                 return -EINVAL;
2165         }
2166 
2167         if (remote) {
2168                 memset(dcbx_info, 0, sizeof(*dcbx_info));
2169                 rc = qed_dcbx_query_params(hwfn, dcbx_info,
2170                                            QED_DCBX_REMOTE_MIB);
2171                 if (rc) {
2172                         kfree(dcbx_info);
2173                         return -EINVAL;
2174                 }
2175 
2176                 params = &dcbx_info->remote.params;
2177         } else {
2178                 params = &dcbx_info->operational.params;
2179         }
2180 
2181         ets->ets_cap = params->max_ets_tc;
2182         ets->willing = params->ets_willing;
2183         ets->cbs = params->ets_cbs;
2184         memcpy(ets->tc_tx_bw, params->ets_tc_bw_tbl, sizeof(ets->tc_tx_bw));
2185         memcpy(ets->tc_tsa, params->ets_tc_tsa_tbl, sizeof(ets->tc_tsa));
2186         memcpy(ets->prio_tc, params->ets_pri_tc_tbl, sizeof(ets->prio_tc));
2187         kfree(dcbx_info);
2188 
2189         return 0;
2190 }
2191 
2192 static int qed_dcbnl_ieee_getets(struct qed_dev *cdev, struct ieee_ets *ets)
2193 {
2194         return qed_dcbnl_get_ieee_ets(cdev, ets, false);
2195 }
2196 
2197 static int qed_dcbnl_ieee_setets(struct qed_dev *cdev, struct ieee_ets *ets)
2198 {
2199         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2200         struct qed_dcbx_get *dcbx_info;
2201         struct qed_dcbx_set dcbx_set;
2202         struct qed_ptt *ptt;
2203         int rc;
2204 
2205         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2206         if (!dcbx_info)
2207                 return -EINVAL;
2208 
2209         if (!dcbx_info->operational.ieee) {
2210                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2211                 kfree(dcbx_info);
2212                 return -EINVAL;
2213         }
2214 
2215         kfree(dcbx_info);
2216 
2217         memset(&dcbx_set, 0, sizeof(dcbx_set));
2218         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2219         if (rc)
2220                 return -EINVAL;
2221 
2222         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_ETS_CFG;
2223         dcbx_set.config.params.max_ets_tc = ets->ets_cap;
2224         dcbx_set.config.params.ets_willing = ets->willing;
2225         dcbx_set.config.params.ets_cbs = ets->cbs;
2226         memcpy(dcbx_set.config.params.ets_tc_bw_tbl, ets->tc_tx_bw,
2227                sizeof(ets->tc_tx_bw));
2228         memcpy(dcbx_set.config.params.ets_tc_tsa_tbl, ets->tc_tsa,
2229                sizeof(ets->tc_tsa));
2230         memcpy(dcbx_set.config.params.ets_pri_tc_tbl, ets->prio_tc,
2231                sizeof(ets->prio_tc));
2232 
2233         ptt = qed_ptt_acquire(hwfn);
2234         if (!ptt)
2235                 return -EINVAL;
2236 
2237         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2238 
2239         qed_ptt_release(hwfn, ptt);
2240 
2241         return rc;
2242 }
2243 
2244 static int
2245 qed_dcbnl_ieee_peer_getets(struct qed_dev *cdev, struct ieee_ets *ets)
2246 {
2247         return qed_dcbnl_get_ieee_ets(cdev, ets, true);
2248 }
2249 
2250 static int
2251 qed_dcbnl_ieee_peer_getpfc(struct qed_dev *cdev, struct ieee_pfc *pfc)
2252 {
2253         return qed_dcbnl_get_ieee_pfc(cdev, pfc, true);
2254 }
2255 
2256 static int qed_get_sf_ieee_value(u8 selector, u8 *sf_ieee)
2257 {
2258         switch (selector) {
2259         case IEEE_8021QAZ_APP_SEL_ETHERTYPE:
2260                 *sf_ieee = QED_DCBX_SF_IEEE_ETHTYPE;
2261                 break;
2262         case IEEE_8021QAZ_APP_SEL_STREAM:
2263                 *sf_ieee = QED_DCBX_SF_IEEE_TCP_PORT;
2264                 break;
2265         case IEEE_8021QAZ_APP_SEL_DGRAM:
2266                 *sf_ieee = QED_DCBX_SF_IEEE_UDP_PORT;
2267                 break;
2268         case IEEE_8021QAZ_APP_SEL_ANY:
2269                 *sf_ieee = QED_DCBX_SF_IEEE_TCP_UDP_PORT;
2270                 break;
2271         default:
2272                 return -EINVAL;
2273         }
2274 
2275         return 0;
2276 }
2277 
2278 static int qed_dcbnl_ieee_getapp(struct qed_dev *cdev, struct dcb_app *app)
2279 {
2280         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2281         struct qed_dcbx_get *dcbx_info;
2282         struct qed_app_entry *entry;
2283         u8 prio = 0;
2284         u8 sf_ieee;
2285         int i;
2286 
2287         DP_VERBOSE(hwfn, QED_MSG_DCB, "selector = %d protocol = %d\n",
2288                    app->selector, app->protocol);
2289 
2290         if (qed_get_sf_ieee_value(app->selector, &sf_ieee)) {
2291                 DP_INFO(cdev, "Invalid selector field value %d\n",
2292                         app->selector);
2293                 return -EINVAL;
2294         }
2295 
2296         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2297         if (!dcbx_info)
2298                 return -EINVAL;
2299 
2300         if (!dcbx_info->operational.ieee) {
2301                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2302                 kfree(dcbx_info);
2303                 return -EINVAL;
2304         }
2305 
2306         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
2307                 entry = &dcbx_info->operational.params.app_entry[i];
2308                 if ((entry->sf_ieee == sf_ieee) &&
2309                     (entry->proto_id == app->protocol)) {
2310                         prio = entry->prio;
2311                         break;
2312                 }
2313         }
2314 
2315         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
2316                 DP_ERR(cdev, "App entry (%d, %d) not found\n", app->selector,
2317                        app->protocol);
2318                 kfree(dcbx_info);
2319                 return -EINVAL;
2320         }
2321 
2322         app->priority = ffs(prio) - 1;
2323 
2324         kfree(dcbx_info);
2325 
2326         return 0;
2327 }
2328 
2329 static int qed_dcbnl_ieee_setapp(struct qed_dev *cdev, struct dcb_app *app)
2330 {
2331         struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
2332         struct qed_dcbx_get *dcbx_info;
2333         struct qed_dcbx_set dcbx_set;
2334         struct qed_app_entry *entry;
2335         struct qed_ptt *ptt;
2336         u8 sf_ieee;
2337         int rc, i;
2338 
2339         DP_VERBOSE(hwfn, QED_MSG_DCB, "selector = %d protocol = %d pri = %d\n",
2340                    app->selector, app->protocol, app->priority);
2341         if (app->priority >= QED_MAX_PFC_PRIORITIES) {
2342                 DP_INFO(hwfn, "Invalid priority %d\n", app->priority);
2343                 return -EINVAL;
2344         }
2345 
2346         if (qed_get_sf_ieee_value(app->selector, &sf_ieee)) {
2347                 DP_INFO(cdev, "Invalid selector field value %d\n",
2348                         app->selector);
2349                 return -EINVAL;
2350         }
2351 
2352         dcbx_info = qed_dcbnl_get_dcbx(hwfn, QED_DCBX_OPERATIONAL_MIB);
2353         if (!dcbx_info)
2354                 return -EINVAL;
2355 
2356         if (!dcbx_info->operational.ieee) {
2357                 DP_INFO(hwfn, "DCBX is not enabled/operational in IEEE mode\n");
2358                 kfree(dcbx_info);
2359                 return -EINVAL;
2360         }
2361 
2362         kfree(dcbx_info);
2363 
2364         memset(&dcbx_set, 0, sizeof(dcbx_set));
2365         rc = qed_dcbx_get_config_params(hwfn, &dcbx_set);
2366         if (rc)
2367                 return -EINVAL;
2368 
2369         for (i = 0; i < QED_DCBX_MAX_APP_PROTOCOL; i++) {
2370                 entry = &dcbx_set.config.params.app_entry[i];
2371                 if ((entry->sf_ieee == sf_ieee) &&
2372                     (entry->proto_id == app->protocol))
2373                         break;
2374                 /* First empty slot */
2375                 if (!entry->proto_id) {
2376                         dcbx_set.config.params.num_app_entries++;
2377                         break;
2378                 }
2379         }
2380 
2381         if (i == QED_DCBX_MAX_APP_PROTOCOL) {
2382                 DP_ERR(cdev, "App table is full\n");
2383                 return -EBUSY;
2384         }
2385 
2386         dcbx_set.override_flags |= QED_DCBX_OVERRIDE_APP_CFG;
2387         dcbx_set.config.params.app_entry[i].sf_ieee = sf_ieee;
2388         dcbx_set.config.params.app_entry[i].proto_id = app->protocol;
2389         dcbx_set.config.params.app_entry[i].prio = BIT(app->priority);
2390 
2391         ptt = qed_ptt_acquire(hwfn);
2392         if (!ptt)
2393                 return -EBUSY;
2394 
2395         rc = qed_dcbx_config_params(hwfn, ptt, &dcbx_set, 0);
2396 
2397         qed_ptt_release(hwfn, ptt);
2398 
2399         return rc;
2400 }
2401 
2402 const struct qed_eth_dcbnl_ops qed_dcbnl_ops_pass = {
2403         .getstate = qed_dcbnl_getstate,
2404         .setstate = qed_dcbnl_setstate,
2405         .getpgtccfgtx = qed_dcbnl_getpgtccfgtx,
2406         .getpgbwgcfgtx = qed_dcbnl_getpgbwgcfgtx,
2407         .getpgtccfgrx = qed_dcbnl_getpgtccfgrx,
2408         .getpgbwgcfgrx = qed_dcbnl_getpgbwgcfgrx,
2409         .getpfccfg = qed_dcbnl_getpfccfg,
2410         .setpfccfg = qed_dcbnl_setpfccfg,
2411         .getcap = qed_dcbnl_getcap,
2412         .getnumtcs = qed_dcbnl_getnumtcs,
2413         .getpfcstate = qed_dcbnl_getpfcstate,
2414         .getdcbx = qed_dcbnl_getdcbx,
2415         .setpgtccfgtx = qed_dcbnl_setpgtccfgtx,
2416         .setpgtccfgrx = qed_dcbnl_setpgtccfgrx,
2417         .setpgbwgcfgtx = qed_dcbnl_setpgbwgcfgtx,
2418         .setpgbwgcfgrx = qed_dcbnl_setpgbwgcfgrx,
2419         .setall = qed_dcbnl_setall,
2420         .setnumtcs = qed_dcbnl_setnumtcs,
2421         .setpfcstate = qed_dcbnl_setpfcstate,
2422         .setapp = qed_dcbnl_setapp,
2423         .setdcbx = qed_dcbnl_setdcbx,
2424         .setfeatcfg = qed_dcbnl_setfeatcfg,
2425         .getfeatcfg = qed_dcbnl_getfeatcfg,
2426         .getapp = qed_dcbnl_getapp,
2427         .peer_getappinfo = qed_dcbnl_peer_getappinfo,
2428         .peer_getapptable = qed_dcbnl_peer_getapptable,
2429         .cee_peer_getpfc = qed_dcbnl_cee_peer_getpfc,
2430         .cee_peer_getpg = qed_dcbnl_cee_peer_getpg,
2431         .ieee_getpfc = qed_dcbnl_ieee_getpfc,
2432         .ieee_setpfc = qed_dcbnl_ieee_setpfc,
2433         .ieee_getets = qed_dcbnl_ieee_getets,
2434         .ieee_setets = qed_dcbnl_ieee_setets,
2435         .ieee_peer_getpfc = qed_dcbnl_ieee_peer_getpfc,
2436         .ieee_peer_getets = qed_dcbnl_ieee_peer_getets,
2437         .ieee_getapp = qed_dcbnl_ieee_getapp,
2438         .ieee_setapp = qed_dcbnl_ieee_setapp,
2439 };
2440 
2441 #endif
/* [<][>][^][v][top][bottom][index][help] */
root/drivers/net/ethernet/qlogic/qed/qed_dcbx.c

DEFINITIONS
