kernel/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c

   1 /* bnx2x_dcb.c: QLogic Everest network driver.
   2  *
   3  * Copyright 2009-2013 Broadcom Corporation
   4  * Copyright 2014 QLogic Corporation
   5  * All rights reserved
   6  *
   7  * Unless you and QLogic execute a separate written software license
   8  * agreement governing use of this software, this software is licensed to you
   9  * under the terms of the GNU General Public License version 2, available
  10  * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
  11  *
  12  * Notwithstanding the above, under no circumstances may you combine this
  13  * software in any way with any other QLogic software provided under a
  14  * license other than the GPL, without QLogic's express prior written
  15  * consent.
  16  *
  17  * Maintained by: Ariel Elior <ariel.elior@qlogic.com>
  18  * Written by: Dmitry Kravkov
  19  *
  20  */
  21
  22 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  23
  24 #include <linux/netdevice.h>
  25 #include <linux/types.h>
  26 #include <linux/errno.h>
  27 #include <linux/rtnetlink.h>
  28 #include <net/dcbnl.h>
  29
  30 #include "bnx2x.h"
  31 #include "bnx2x_cmn.h"
  32 #include "bnx2x_dcb.h"
  33
  34 /* forward declarations of dcbx related functions */
  35 static void bnx2x_pfc_set_pfc(struct bnx2x *bp);
  36 static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp);
  37 static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp,
  38                                           u32 *set_configuration_ets_pg,
  39                                           u32 *pri_pg_tbl);
  40 static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp,
  41                                             u32 *pg_pri_orginal_spread,
  42                                             struct pg_help_data *help_data);
  43 static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp,
  44                                        struct pg_help_data *help_data,
  45                                        struct dcbx_ets_feature *ets,
  46                                        u32 *pg_pri_orginal_spread);
  47 static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp,
  48                                 struct cos_help_data *cos_data,
  49                                 u32 *pg_pri_orginal_spread,
  50                                 struct dcbx_ets_feature *ets);
  51 static void bnx2x_dcbx_fw_struct(struct bnx2x *bp,
  52                                  struct bnx2x_func_tx_start_params*);
  53
  54 /* helpers: read/write len bytes from addr into buff by REG_RD/REG_WR */
  55 static void bnx2x_read_data(struct bnx2x *bp, u32 *buff,
  56                                    u32 addr, u32 len)
  57 {
  58         int i;
  59         for (i = 0; i < len; i += 4, buff++)
  60                 *buff = REG_RD(bp, addr + i);
  61 }
  62
  63 static void bnx2x_write_data(struct bnx2x *bp, u32 *buff,
  64                                     u32 addr, u32 len)
  65 {
  66         int i;
  67         for (i = 0; i < len; i += 4, buff++)
  68                 REG_WR(bp, addr + i, *buff);
  69 }
  70
  71 static void bnx2x_pfc_set(struct bnx2x *bp)
  72 {
  73         struct bnx2x_nig_brb_pfc_port_params pfc_params = {0};
  74         u32 pri_bit, val = 0;
  75         int i;
  76
  77         pfc_params.num_of_rx_cos_priority_mask =
  78                                         bp->dcbx_port_params.ets.num_of_cos;
  79
  80         /* Tx COS configuration */
  81         for (i = 0; i < bp->dcbx_port_params.ets.num_of_cos; i++)
  82                 /*
  83                  * We configure only the pauseable bits (non pauseable aren't
  84                  * configured at all) it's done to avoid false pauses from
  85                  * network
  86                  */
  87                 pfc_params.rx_cos_priority_mask[i] =
  88                         bp->dcbx_port_params.ets.cos_params[i].pri_bitmask
  89                                 & DCBX_PFC_PRI_PAUSE_MASK(bp);
  90
  91         /*
  92          * Rx COS configuration
  93          * Changing PFC RX configuration .
  94          * In RX COS0 will always be configured to lossless and COS1 to lossy
  95          */
  96         for (i = 0 ; i < MAX_PFC_PRIORITIES ; i++) {
  97                 pri_bit = 1 << i;
  98
  99                 if (!(pri_bit & DCBX_PFC_PRI_PAUSE_MASK(bp)))
 100                         val |= 1 << (i * 4);
 101         }
 102
 103         pfc_params.pkt_priority_to_cos = val;
 104
 105         /* RX COS0 */
 106         pfc_params.llfc_low_priority_classes = DCBX_PFC_PRI_PAUSE_MASK(bp);
 107         /* RX COS1 */
 108         pfc_params.llfc_high_priority_classes = 0;
 109
 110         bnx2x_acquire_phy_lock(bp);
 111         bp->link_params.feature_config_flags |= FEATURE_CONFIG_PFC_ENABLED;
 112         bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &pfc_params);
 113         bnx2x_release_phy_lock(bp);
 114 }
 115
 116 static void bnx2x_pfc_clear(struct bnx2x *bp)
 117 {
 118         struct bnx2x_nig_brb_pfc_port_params nig_params = {0};
 119         nig_params.pause_enable = 1;
 120         bnx2x_acquire_phy_lock(bp);
 121         bp->link_params.feature_config_flags &= ~FEATURE_CONFIG_PFC_ENABLED;
 122         bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &nig_params);
 123         bnx2x_release_phy_lock(bp);
 124 }
 125
 126 static void  bnx2x_dump_dcbx_drv_param(struct bnx2x *bp,
 127                                        struct dcbx_features *features,
 128                                        u32 error)
 129 {
 130         u8 i = 0;
 131         DP(NETIF_MSG_LINK, "local_mib.error %x\n", error);
 132
 133         /* PG */
 134         DP(NETIF_MSG_LINK,
 135            "local_mib.features.ets.enabled %x\n", features->ets.enabled);
 136         for (i = 0; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++)
 137                 DP(NETIF_MSG_LINK,
 138                    "local_mib.features.ets.pg_bw_tbl[%d] %d\n", i,
 139                    DCBX_PG_BW_GET(features->ets.pg_bw_tbl, i));
 140         for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++)
 141                 DP(NETIF_MSG_LINK,
 142                    "local_mib.features.ets.pri_pg_tbl[%d] %d\n", i,
 143                    DCBX_PRI_PG_GET(features->ets.pri_pg_tbl, i));
 144
 145         /* pfc */
 146         DP(BNX2X_MSG_DCB, "dcbx_features.pfc.pri_en_bitmap %x\n",
 147                                         features->pfc.pri_en_bitmap);
 148         DP(BNX2X_MSG_DCB, "dcbx_features.pfc.pfc_caps %x\n",
 149                                         features->pfc.pfc_caps);
 150         DP(BNX2X_MSG_DCB, "dcbx_features.pfc.enabled %x\n",
 151                                         features->pfc.enabled);
 152
 153         DP(BNX2X_MSG_DCB, "dcbx_features.app.default_pri %x\n",
 154                                         features->app.default_pri);
 155         DP(BNX2X_MSG_DCB, "dcbx_features.app.tc_supported %x\n",
 156                                         features->app.tc_supported);
 157         DP(BNX2X_MSG_DCB, "dcbx_features.app.enabled %x\n",
 158                                         features->app.enabled);
 159         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
 160                 DP(BNX2X_MSG_DCB,
 161                    "dcbx_features.app.app_pri_tbl[%x].app_id %x\n",
 162                    i, features->app.app_pri_tbl[i].app_id);
 163                 DP(BNX2X_MSG_DCB,
 164                    "dcbx_features.app.app_pri_tbl[%x].pri_bitmap %x\n",
 165                    i, features->app.app_pri_tbl[i].pri_bitmap);
 166                 DP(BNX2X_MSG_DCB,
 167                    "dcbx_features.app.app_pri_tbl[%x].appBitfield %x\n",
 168                    i, features->app.app_pri_tbl[i].appBitfield);
 169         }
 170 }
 171
 172 static void bnx2x_dcbx_get_ap_priority(struct bnx2x *bp,
 173                                        u8 pri_bitmap,
 174                                        u8 llfc_traf_type)
 175 {
 176         u32 pri = MAX_PFC_PRIORITIES;
 177         u32 index = MAX_PFC_PRIORITIES - 1;
 178         u32 pri_mask;
 179         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
 180
 181         /* Choose the highest priority */
 182         while ((MAX_PFC_PRIORITIES == pri) && (0 != index)) {
 183                 pri_mask = 1 << index;
 184                 if (GET_FLAGS(pri_bitmap, pri_mask))
 185                         pri = index ;
 186                 index--;
 187         }
 188
 189         if (pri < MAX_PFC_PRIORITIES)
 190                 ttp[llfc_traf_type] = max_t(u32, ttp[llfc_traf_type], pri);
 191 }
 192
 193 static void bnx2x_dcbx_get_ap_feature(struct bnx2x *bp,
 194                                    struct dcbx_app_priority_feature *app,
 195                                    u32 error) {
 196         u8 index;
 197         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
 198
 199         if (GET_FLAGS(error, DCBX_LOCAL_APP_ERROR))
 200                 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_APP_ERROR\n");
 201
 202         if (GET_FLAGS(error, DCBX_LOCAL_APP_MISMATCH))
 203                 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_APP_MISMATCH\n");
 204
 205         if (GET_FLAGS(error, DCBX_REMOTE_APP_TLV_NOT_FOUND))
 206                 DP(BNX2X_MSG_DCB, "DCBX_REMOTE_APP_TLV_NOT_FOUND\n");
 207         if (app->enabled &&
 208             !GET_FLAGS(error, DCBX_LOCAL_APP_ERROR | DCBX_LOCAL_APP_MISMATCH |
 209                               DCBX_REMOTE_APP_TLV_NOT_FOUND)) {
 210
 211                 bp->dcbx_port_params.app.enabled = true;
 212
 213                 for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++)
 214                         ttp[index] = 0;
 215
 216                 if (app->default_pri < MAX_PFC_PRIORITIES)
 217                         ttp[LLFC_TRAFFIC_TYPE_NW] = app->default_pri;
 218
 219                 for (index = 0 ; index < DCBX_MAX_APP_PROTOCOL; index++) {
 220                         struct dcbx_app_priority_entry *entry =
 221                                                         app->app_pri_tbl;
 222
 223                         if (GET_FLAGS(entry[index].appBitfield,
 224                                      DCBX_APP_SF_ETH_TYPE) &&
 225                            ETH_TYPE_FCOE == entry[index].app_id)
 226                                 bnx2x_dcbx_get_ap_priority(bp,
 227                                                 entry[index].pri_bitmap,
 228                                                 LLFC_TRAFFIC_TYPE_FCOE);
 229
 230                         if (GET_FLAGS(entry[index].appBitfield,
 231                                      DCBX_APP_SF_PORT) &&
 232                            TCP_PORT_ISCSI == entry[index].app_id)
 233                                 bnx2x_dcbx_get_ap_priority(bp,
 234                                                 entry[index].pri_bitmap,
 235                                                 LLFC_TRAFFIC_TYPE_ISCSI);
 236                 }
 237         } else {
 238                 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_APP_DISABLED\n");
 239                 bp->dcbx_port_params.app.enabled = false;
 240                 for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++)
 241                         ttp[index] = INVALID_TRAFFIC_TYPE_PRIORITY;
 242         }
 243 }
 244
 245 static void bnx2x_dcbx_get_ets_feature(struct bnx2x *bp,
 246                                        struct dcbx_ets_feature *ets,
 247                                        u32 error) {
 248         int i = 0;
 249         u32 pg_pri_orginal_spread[DCBX_MAX_NUM_PG_BW_ENTRIES] = {0};
 250         struct pg_help_data pg_help_data;
 251         struct bnx2x_dcbx_cos_params *cos_params =
 252                         bp->dcbx_port_params.ets.cos_params;
 253
 254         memset(&pg_help_data, 0, sizeof(struct pg_help_data));
 255
 256         if (GET_FLAGS(error, DCBX_LOCAL_ETS_ERROR))
 257                 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_ERROR\n");
 258
 259         if (GET_FLAGS(error, DCBX_REMOTE_ETS_TLV_NOT_FOUND))
 260                 DP(BNX2X_MSG_DCB, "DCBX_REMOTE_ETS_TLV_NOT_FOUND\n");
 261
 262         /* Clean up old settings of ets on COS */
 263         for (i = 0; i < ARRAY_SIZE(bp->dcbx_port_params.ets.cos_params) ; i++) {
 264                 cos_params[i].pauseable = false;
 265                 cos_params[i].strict = BNX2X_DCBX_STRICT_INVALID;
 266                 cos_params[i].bw_tbl = DCBX_INVALID_COS_BW;
 267                 cos_params[i].pri_bitmask = 0;
 268         }
 269
 270         if (bp->dcbx_port_params.app.enabled && ets->enabled &&
 271            !GET_FLAGS(error,
 272                       DCBX_LOCAL_ETS_ERROR | DCBX_REMOTE_ETS_TLV_NOT_FOUND)) {
 273                 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_ENABLE\n");
 274                 bp->dcbx_port_params.ets.enabled = true;
 275
 276                 bnx2x_dcbx_get_ets_pri_pg_tbl(bp,
 277                                               pg_pri_orginal_spread,
 278                                               ets->pri_pg_tbl);
 279
 280                 bnx2x_dcbx_get_num_pg_traf_type(bp,
 281                                                 pg_pri_orginal_spread,
 282                                                 &pg_help_data);
 283
 284                 bnx2x_dcbx_fill_cos_params(bp, &pg_help_data,
 285                                            ets, pg_pri_orginal_spread);
 286
 287         } else {
 288                 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_DISABLED\n");
 289                 bp->dcbx_port_params.ets.enabled = false;
 290                 ets->pri_pg_tbl[0] = 0;
 291
 292                 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES ; i++)
 293                         DCBX_PG_BW_SET(ets->pg_bw_tbl, i, 1);
 294         }
 295 }
 296
 297 static void  bnx2x_dcbx_get_pfc_feature(struct bnx2x *bp,
 298                                         struct dcbx_pfc_feature *pfc, u32 error)
 299 {
 300         if (GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR))
 301                 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_PFC_ERROR\n");
 302
 303         if (GET_FLAGS(error, DCBX_REMOTE_PFC_TLV_NOT_FOUND))
 304                 DP(BNX2X_MSG_DCB, "DCBX_REMOTE_PFC_TLV_NOT_FOUND\n");
 305         if (bp->dcbx_port_params.app.enabled && pfc->enabled &&
 306            !GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR | DCBX_LOCAL_PFC_MISMATCH |
 307                              DCBX_REMOTE_PFC_TLV_NOT_FOUND)) {
 308                 bp->dcbx_port_params.pfc.enabled = true;
 309                 bp->dcbx_port_params.pfc.priority_non_pauseable_mask =
 310                         ~(pfc->pri_en_bitmap);
 311         } else {
 312                 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_PFC_DISABLED\n");
 313                 bp->dcbx_port_params.pfc.enabled = false;
 314                 bp->dcbx_port_params.pfc.priority_non_pauseable_mask = 0;
 315         }
 316 }
 317
 318 /* maps unmapped priorities to to the same COS as L2 */
 319 static void bnx2x_dcbx_map_nw(struct bnx2x *bp)
 320 {
 321         int i;
 322         u32 unmapped = (1 << MAX_PFC_PRIORITIES) - 1; /* all ones */
 323         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
 324         u32 nw_prio = 1 << ttp[LLFC_TRAFFIC_TYPE_NW];
 325         struct bnx2x_dcbx_cos_params *cos_params =
 326                         bp->dcbx_port_params.ets.cos_params;
 327
 328         /* get unmapped priorities by clearing mapped bits */
 329         for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++)
 330                 unmapped &= ~(1 << ttp[i]);
 331
 332         /* find cos for nw prio and extend it with unmapped */
 333         for (i = 0; i < ARRAY_SIZE(bp->dcbx_port_params.ets.cos_params); i++) {
 334                 if (cos_params[i].pri_bitmask & nw_prio) {
 335                         /* extend the bitmask with unmapped */
 336                         DP(BNX2X_MSG_DCB,
 337                            "cos %d extended with 0x%08x\n", i, unmapped);
 338                         cos_params[i].pri_bitmask |= unmapped;
 339                         break;
 340                 }
 341         }
 342 }
 343
 344 static void bnx2x_get_dcbx_drv_param(struct bnx2x *bp,
 345                                      struct dcbx_features *features,
 346                                      u32 error)
 347 {
 348         bnx2x_dcbx_get_ap_feature(bp, &features->app, error);
 349
 350         bnx2x_dcbx_get_pfc_feature(bp, &features->pfc, error);
 351
 352         bnx2x_dcbx_get_ets_feature(bp, &features->ets, error);
 353
 354         bnx2x_dcbx_map_nw(bp);
 355 }
 356
 357 #define DCBX_LOCAL_MIB_MAX_TRY_READ             (100)
 358 static int bnx2x_dcbx_read_mib(struct bnx2x *bp,
 359                                u32 *base_mib_addr,
 360                                u32 offset,
 361                                int read_mib_type)
 362 {
 363         int max_try_read = 0;
 364         u32 mib_size, prefix_seq_num, suffix_seq_num;
 365         struct lldp_remote_mib *remote_mib ;
 366         struct lldp_local_mib  *local_mib;
 367
 368         switch (read_mib_type) {
 369         case DCBX_READ_LOCAL_MIB:
 370                 mib_size = sizeof(struct lldp_local_mib);
 371                 break;
 372         case DCBX_READ_REMOTE_MIB:
 373                 mib_size = sizeof(struct lldp_remote_mib);
 374                 break;
 375         default:
 376                 return 1; /*error*/
 377         }
 378
 379         offset += BP_PORT(bp) * mib_size;
 380
 381         do {
 382                 bnx2x_read_data(bp, base_mib_addr, offset, mib_size);
 383
 384                 max_try_read++;
 385
 386                 switch (read_mib_type) {
 387                 case DCBX_READ_LOCAL_MIB:
 388                         local_mib = (struct lldp_local_mib *) base_mib_addr;
 389                         prefix_seq_num = local_mib->prefix_seq_num;
 390                         suffix_seq_num = local_mib->suffix_seq_num;
 391                         break;
 392                 case DCBX_READ_REMOTE_MIB:
 393                         remote_mib = (struct lldp_remote_mib *) base_mib_addr;
 394                         prefix_seq_num = remote_mib->prefix_seq_num;
 395                         suffix_seq_num = remote_mib->suffix_seq_num;
 396                         break;
 397                 default:
 398                         return 1; /*error*/
 399                 }
 400         } while ((prefix_seq_num != suffix_seq_num) &&
 401                (max_try_read < DCBX_LOCAL_MIB_MAX_TRY_READ));
 402
 403         if (max_try_read >= DCBX_LOCAL_MIB_MAX_TRY_READ) {
 404                 BNX2X_ERR("MIB could not be read\n");
 405                 return 1;
 406         }
 407
 408         return 0;
 409 }
 410
 411 static void bnx2x_pfc_set_pfc(struct bnx2x *bp)
 412 {
 413         int mfw_configured = SHMEM2_HAS(bp, drv_flags) &&
 414                              GET_FLAGS(SHMEM2_RD(bp, drv_flags),
 415                                        1 << DRV_FLAGS_DCB_MFW_CONFIGURED);
 416
 417         if (bp->dcbx_port_params.pfc.enabled &&
 418             (!(bp->dcbx_error & DCBX_REMOTE_MIB_ERROR) || mfw_configured))
 419                 /*
 420                  * 1. Fills up common PFC structures if required
 421                  * 2. Configure NIG, MAC and BRB via the elink
 422                  */
 423                 bnx2x_pfc_set(bp);
 424         else
 425                 bnx2x_pfc_clear(bp);
 426 }
 427
 428 int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp)
 429 {
 430         struct bnx2x_func_state_params func_params = {NULL};
 431         int rc;
 432
 433         func_params.f_obj = &bp->func_obj;
 434         func_params.cmd = BNX2X_F_CMD_TX_STOP;
 435
 436         __set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags);
 437         __set_bit(RAMROD_RETRY, &func_params.ramrod_flags);
 438
 439         DP(BNX2X_MSG_DCB, "STOP TRAFFIC\n");
 440
 441         rc = bnx2x_func_state_change(bp, &func_params);
 442         if (rc) {
 443                 BNX2X_ERR("Unable to hold traffic for HW configuration\n");
 444                 bnx2x_panic();
 445         }
 446
 447         return rc;
 448 }
 449
 450 int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp)
 451 {
 452         struct bnx2x_func_state_params func_params = {NULL};
 453         struct bnx2x_func_tx_start_params *tx_params =
 454                 &func_params.params.tx_start;
 455         int rc;
 456
 457         func_params.f_obj = &bp->func_obj;
 458         func_params.cmd = BNX2X_F_CMD_TX_START;
 459
 460         __set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags);
 461         __set_bit(RAMROD_RETRY, &func_params.ramrod_flags);
 462
 463         bnx2x_dcbx_fw_struct(bp, tx_params);
 464
 465         DP(BNX2X_MSG_DCB, "START TRAFFIC\n");
 466
 467         rc = bnx2x_func_state_change(bp, &func_params);
 468         if (rc) {
 469                 BNX2X_ERR("Unable to resume traffic after HW configuration\n");
 470                 bnx2x_panic();
 471         }
 472
 473         return rc;
 474 }
 475
 476 static void bnx2x_dcbx_2cos_limit_update_ets_config(struct bnx2x *bp)
 477 {
 478         struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets);
 479         int rc = 0;
 480
 481         if (ets->num_of_cos == 0 || ets->num_of_cos > DCBX_COS_MAX_NUM_E2) {
 482                 BNX2X_ERR("Illegal number of COSes %d\n", ets->num_of_cos);
 483                 return;
 484         }
 485
 486         /* valid COS entries */
 487         if (ets->num_of_cos == 1)   /* no ETS */
 488                 return;
 489
 490         /* sanity */
 491         if (((BNX2X_DCBX_STRICT_INVALID == ets->cos_params[0].strict) &&
 492              (DCBX_INVALID_COS_BW == ets->cos_params[0].bw_tbl)) ||
 493             ((BNX2X_DCBX_STRICT_INVALID == ets->cos_params[1].strict) &&
 494              (DCBX_INVALID_COS_BW == ets->cos_params[1].bw_tbl))) {
 495                 BNX2X_ERR("all COS should have at least bw_limit or strict"
 496                             "ets->cos_params[0].strict= %x"
 497                             "ets->cos_params[0].bw_tbl= %x"
 498                             "ets->cos_params[1].strict= %x"
 499                             "ets->cos_params[1].bw_tbl= %x",
 500                           ets->cos_params[0].strict,
 501                           ets->cos_params[0].bw_tbl,
 502                           ets->cos_params[1].strict,
 503                           ets->cos_params[1].bw_tbl);
 504                 return;
 505         }
 506         /* If we join a group and there is bw_tbl and strict then bw rules */
 507         if ((DCBX_INVALID_COS_BW != ets->cos_params[0].bw_tbl) &&
 508             (DCBX_INVALID_COS_BW != ets->cos_params[1].bw_tbl)) {
 509                 u32 bw_tbl_0 = ets->cos_params[0].bw_tbl;
 510                 u32 bw_tbl_1 = ets->cos_params[1].bw_tbl;
 511                 /* Do not allow 0-100 configuration
 512                  * since PBF does not support it
 513                  * force 1-99 instead
 514                  */
 515                 if (bw_tbl_0 == 0) {
 516                         bw_tbl_0 = 1;
 517                         bw_tbl_1 = 99;
 518                 } else if (bw_tbl_1 == 0) {
 519                         bw_tbl_1 = 1;
 520                         bw_tbl_0 = 99;
 521                 }
 522
 523                 bnx2x_ets_bw_limit(&bp->link_params, bw_tbl_0, bw_tbl_1);
 524         } else {
 525                 if (ets->cos_params[0].strict == BNX2X_DCBX_STRICT_COS_HIGHEST)
 526                         rc = bnx2x_ets_strict(&bp->link_params, 0);
 527                 else if (ets->cos_params[1].strict
 528                                         == BNX2X_DCBX_STRICT_COS_HIGHEST)
 529                         rc = bnx2x_ets_strict(&bp->link_params, 1);
 530                 if (rc)
 531                         BNX2X_ERR("update_ets_params failed\n");
 532         }
 533 }
 534
 535 /*
 536  * In E3B0 the configuration may have more than 2 COS.
 537  */
 538 static void bnx2x_dcbx_update_ets_config(struct bnx2x *bp)
 539 {
 540         struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets);
 541         struct bnx2x_ets_params ets_params = { 0 };
 542         u8 i;
 543
 544         ets_params.num_of_cos = ets->num_of_cos;
 545
 546         for (i = 0; i < ets->num_of_cos; i++) {
 547                 /* COS is SP */
 548                 if (ets->cos_params[i].strict != BNX2X_DCBX_STRICT_INVALID) {
 549                         if (ets->cos_params[i].bw_tbl != DCBX_INVALID_COS_BW) {
 550                                 BNX2X_ERR("COS can't be not BW and not SP\n");
 551                                 return;
 552                         }
 553
 554                         ets_params.cos[i].state = bnx2x_cos_state_strict;
 555                         ets_params.cos[i].params.sp_params.pri =
 556                                                 ets->cos_params[i].strict;
 557                 } else { /* COS is BW */
 558                         if (ets->cos_params[i].bw_tbl == DCBX_INVALID_COS_BW) {
 559                                 BNX2X_ERR("COS can't be not BW and not SP\n");
 560                                 return;
 561                         }
 562                         ets_params.cos[i].state = bnx2x_cos_state_bw;
 563                         ets_params.cos[i].params.bw_params.bw =
 564                                                 (u8)ets->cos_params[i].bw_tbl;
 565                 }
 566         }
 567
 568         /* Configure the ETS in HW */
 569         if (bnx2x_ets_e3b0_config(&bp->link_params, &bp->link_vars,
 570                                   &ets_params)) {
 571                 BNX2X_ERR("bnx2x_ets_e3b0_config failed\n");
 572                 bnx2x_ets_disabled(&bp->link_params, &bp->link_vars);
 573         }
 574 }
 575
 576 static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp)
 577 {
 578         int mfw_configured = SHMEM2_HAS(bp, drv_flags) &&
 579                              GET_FLAGS(SHMEM2_RD(bp, drv_flags),
 580                                        1 << DRV_FLAGS_DCB_MFW_CONFIGURED);
 581
 582         bnx2x_ets_disabled(&bp->link_params, &bp->link_vars);
 583
 584         if (!bp->dcbx_port_params.ets.enabled ||
 585             ((bp->dcbx_error & DCBX_REMOTE_MIB_ERROR) && !mfw_configured))
 586                 return;
 587
 588         if (CHIP_IS_E3B0(bp))
 589                 bnx2x_dcbx_update_ets_config(bp);
 590         else
 591                 bnx2x_dcbx_2cos_limit_update_ets_config(bp);
 592 }
 593
 594 #ifdef BCM_DCBNL
 595 static int bnx2x_dcbx_read_shmem_remote_mib(struct bnx2x *bp)
 596 {
 597         struct lldp_remote_mib remote_mib = {0};
 598         u32 dcbx_remote_mib_offset = SHMEM2_RD(bp, dcbx_remote_mib_offset);
 599         int rc;
 600
 601         DP(BNX2X_MSG_DCB, "dcbx_remote_mib_offset 0x%x\n",
 602            dcbx_remote_mib_offset);
 603
 604         if (SHMEM_DCBX_REMOTE_MIB_NONE == dcbx_remote_mib_offset) {
 605                 BNX2X_ERR("FW doesn't support dcbx_remote_mib_offset\n");
 606                 return -EINVAL;
 607         }
 608
 609         rc = bnx2x_dcbx_read_mib(bp, (u32 *)&remote_mib, dcbx_remote_mib_offset,
 610                                  DCBX_READ_REMOTE_MIB);
 611
 612         if (rc) {
 613                 BNX2X_ERR("Failed to read remote mib from FW\n");
 614                 return rc;
 615         }
 616
 617         /* save features and flags */
 618         bp->dcbx_remote_feat = remote_mib.features;
 619         bp->dcbx_remote_flags = remote_mib.flags;
 620         return 0;
 621 }
 622 #endif
 623
 624 static int bnx2x_dcbx_read_shmem_neg_results(struct bnx2x *bp)
 625 {
 626         struct lldp_local_mib local_mib = {0};
 627         u32 dcbx_neg_res_offset = SHMEM2_RD(bp, dcbx_neg_res_offset);
 628         int rc;
 629
 630         DP(BNX2X_MSG_DCB, "dcbx_neg_res_offset 0x%x\n", dcbx_neg_res_offset);
 631
 632         if (SHMEM_DCBX_NEG_RES_NONE == dcbx_neg_res_offset) {
 633                 BNX2X_ERR("FW doesn't support dcbx_neg_res_offset\n");
 634                 return -EINVAL;
 635         }
 636
 637         rc = bnx2x_dcbx_read_mib(bp, (u32 *)&local_mib, dcbx_neg_res_offset,
 638                                  DCBX_READ_LOCAL_MIB);
 639
 640         if (rc) {
 641                 BNX2X_ERR("Failed to read local mib from FW\n");
 642                 return rc;
 643         }
 644
 645         /* save features and error */
 646         bp->dcbx_local_feat = local_mib.features;
 647         bp->dcbx_error = local_mib.error;
 648         return 0;
 649 }
 650
 651 #ifdef BCM_DCBNL
 652 static inline
 653 u8 bnx2x_dcbx_dcbnl_app_up(struct dcbx_app_priority_entry *ent)
 654 {
 655         u8 pri;
 656
 657         /* Choose the highest priority */
 658         for (pri = MAX_PFC_PRIORITIES - 1; pri > 0; pri--)
 659                 if (ent->pri_bitmap & (1 << pri))
 660                         break;
 661         return pri;
 662 }
 663
 664 static inline
 665 u8 bnx2x_dcbx_dcbnl_app_idtype(struct dcbx_app_priority_entry *ent)
 666 {
 667         return ((ent->appBitfield & DCBX_APP_ENTRY_SF_MASK) ==
 668                 DCBX_APP_SF_PORT) ? DCB_APP_IDTYPE_PORTNUM :
 669                 DCB_APP_IDTYPE_ETHTYPE;
 670 }
 671
 672 int bnx2x_dcbnl_update_applist(struct bnx2x *bp, bool delall)
 673 {
 674         int i, err = 0;
 675
 676         for (i = 0; i < DCBX_MAX_APP_PROTOCOL && err == 0; i++) {
 677                 struct dcbx_app_priority_entry *ent =
 678                         &bp->dcbx_local_feat.app.app_pri_tbl[i];
 679
 680                 if (ent->appBitfield & DCBX_APP_ENTRY_VALID) {
 681                         u8 up = bnx2x_dcbx_dcbnl_app_up(ent);
 682
 683                         /* avoid invalid user-priority */
 684                         if (up) {
 685                                 struct dcb_app app;
 686                                 app.selector = bnx2x_dcbx_dcbnl_app_idtype(ent);
 687                                 app.protocol = ent->app_id;
 688                                 app.priority = delall ? 0 : up;
 689                                 err = dcb_setapp(bp->dev, &app);
 690                         }
 691                 }
 692         }
 693         return err;
 694 }
 695 #endif
 696
 697 static inline void bnx2x_dcbx_update_tc_mapping(struct bnx2x *bp)
 698 {
 699         u8 prio, cos;
 700         for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++) {
 701                 for (prio = 0; prio < BNX2X_MAX_PRIORITY; prio++) {
 702                         if (bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask
 703                             & (1 << prio)) {
 704                                 bp->prio_to_cos[prio] = cos;
 705                                 DP(BNX2X_MSG_DCB,
 706                                    "tx_mapping %d --> %d\n", prio, cos);
 707                         }
 708                 }
 709         }
 710
 711         /* setup tc must be called under rtnl lock, but we can't take it here
 712          * as we are handling an attention on a work queue which must be
 713          * flushed at some rtnl-locked contexts (e.g. if down)
 714          */
 715         bnx2x_schedule_sp_rtnl(bp, BNX2X_SP_RTNL_SETUP_TC, 0);
 716 }
 717
 718 void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state)
 719 {
 720         switch (state) {
 721         case BNX2X_DCBX_STATE_NEG_RECEIVED:
 722                 {
 723                         DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_NEG_RECEIVED\n");
 724 #ifdef BCM_DCBNL
 725                         /**
 726                          * Delete app tlvs from dcbnl before reading new
 727                          * negotiation results
 728                          */
 729                         bnx2x_dcbnl_update_applist(bp, true);
 730
 731                         /* Read remote mib if dcbx is in the FW */
 732                         if (bnx2x_dcbx_read_shmem_remote_mib(bp))
 733                                 return;
 734 #endif
 735                         /* Read neg results if dcbx is in the FW */
 736                         if (bnx2x_dcbx_read_shmem_neg_results(bp))
 737                                 return;
 738
 739                         bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat,
 740                                                   bp->dcbx_error);
 741
 742                         bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat,
 743                                                  bp->dcbx_error);
 744
 745                         /* mark DCBX result for PMF migration */
 746                         bnx2x_update_drv_flags(bp,
 747                                                1 << DRV_FLAGS_DCB_CONFIGURED,
 748                                                1);
 749 #ifdef BCM_DCBNL
 750                         /*
 751                          * Add new app tlvs to dcbnl
 752                          */
 753                         bnx2x_dcbnl_update_applist(bp, false);
 754 #endif
 755                         /*
 756                          * reconfigure the netdevice with the results of the new
 757                          * dcbx negotiation.
 758                          */
 759                         bnx2x_dcbx_update_tc_mapping(bp);
 760
 761                         /*
 762                          * allow other functions to update their netdevices
 763                          * accordingly
 764                          */
 765                         if (IS_MF(bp))
 766                                 bnx2x_link_sync_notify(bp);
 767
 768                         bnx2x_schedule_sp_rtnl(bp, BNX2X_SP_RTNL_TX_STOP, 0);
 769                         return;
 770                 }
 771         case BNX2X_DCBX_STATE_TX_PAUSED:
 772                 DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_TX_PAUSED\n");
 773                 bnx2x_pfc_set_pfc(bp);
 774
 775                 bnx2x_dcbx_update_ets_params(bp);
 776
 777                 /* ets may affect cmng configuration: reinit it in hw */
 778                 bnx2x_set_local_cmng(bp);
 779                 return;
 780         case BNX2X_DCBX_STATE_TX_RELEASED:
 781                 DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_TX_RELEASED\n");
 782                 bnx2x_fw_command(bp, DRV_MSG_CODE_DCBX_PMF_DRV_OK, 0);
 783 #ifdef BCM_DCBNL
 784                 /*
 785                  * Send a notification for the new negotiated parameters
 786                  */
 787                 dcbnl_cee_notify(bp->dev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0);
 788 #endif
 789                 return;
 790         default:
 791                 BNX2X_ERR("Unknown DCBX_STATE\n");
 792         }
 793 }
 794
 795 #define LLDP_ADMIN_MIB_OFFSET(bp)       (PORT_MAX*sizeof(struct lldp_params) + \
 796                                       BP_PORT(bp)*sizeof(struct lldp_admin_mib))
 797
 798 static void bnx2x_dcbx_admin_mib_updated_params(struct bnx2x *bp,
 799                                 u32 dcbx_lldp_params_offset)
 800 {
 801         struct lldp_admin_mib admin_mib;
 802         u32 i, other_traf_type = PREDEFINED_APP_IDX_MAX, traf_type = 0;
 803         u32 offset = dcbx_lldp_params_offset + LLDP_ADMIN_MIB_OFFSET(bp);
 804
 805         /*shortcuts*/
 806         struct dcbx_features *af = &admin_mib.features;
 807         struct bnx2x_config_dcbx_params *dp = &bp->dcbx_config_params;
 808
 809         memset(&admin_mib, 0, sizeof(struct lldp_admin_mib));
 810
 811         /* Read the data first */
 812         bnx2x_read_data(bp, (u32 *)&admin_mib, offset,
 813                         sizeof(struct lldp_admin_mib));
 814
 815         if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON)
 816                 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED);
 817         else
 818                 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED);
 819
 820         if (dp->overwrite_settings == BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE) {
 821
 822                 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_CEE_VERSION_MASK);
 823                 admin_mib.ver_cfg_flags |=
 824                         (dp->admin_dcbx_version << DCBX_CEE_VERSION_SHIFT) &
 825                          DCBX_CEE_VERSION_MASK;
 826
 827                 af->ets.enabled = (u8)dp->admin_ets_enable;
 828
 829                 af->pfc.enabled = (u8)dp->admin_pfc_enable;
 830
 831                 /* FOR IEEE dp->admin_tc_supported_tx_enable */
 832                 if (dp->admin_ets_configuration_tx_enable)
 833                         SET_FLAGS(admin_mib.ver_cfg_flags,
 834                                   DCBX_ETS_CONFIG_TX_ENABLED);
 835                 else
 836                         RESET_FLAGS(admin_mib.ver_cfg_flags,
 837                                     DCBX_ETS_CONFIG_TX_ENABLED);
 838                 /* For IEEE admin_ets_recommendation_tx_enable */
 839                 if (dp->admin_pfc_tx_enable)
 840                         SET_FLAGS(admin_mib.ver_cfg_flags,
 841                                   DCBX_PFC_CONFIG_TX_ENABLED);
 842                 else
 843                         RESET_FLAGS(admin_mib.ver_cfg_flags,
 844                                   DCBX_PFC_CONFIG_TX_ENABLED);
 845
 846                 if (dp->admin_application_priority_tx_enable)
 847                         SET_FLAGS(admin_mib.ver_cfg_flags,
 848                                   DCBX_APP_CONFIG_TX_ENABLED);
 849                 else
 850                         RESET_FLAGS(admin_mib.ver_cfg_flags,
 851                                   DCBX_APP_CONFIG_TX_ENABLED);
 852
 853                 if (dp->admin_ets_willing)
 854                         SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING);
 855                 else
 856                         RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING);
 857                 /* For IEEE admin_ets_reco_valid */
 858                 if (dp->admin_pfc_willing)
 859                         SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING);
 860                 else
 861                         RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING);
 862
 863                 if (dp->admin_app_priority_willing)
 864                         SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING);
 865                 else
 866                         RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING);
 867
 868                 for (i = 0 ; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++) {
 869                         DCBX_PG_BW_SET(af->ets.pg_bw_tbl, i,
 870                                 (u8)dp->admin_configuration_bw_precentage[i]);
 871
 872                         DP(BNX2X_MSG_DCB, "pg_bw_tbl[%d] = %02x\n",
 873                            i, DCBX_PG_BW_GET(af->ets.pg_bw_tbl, i));
 874                 }
 875
 876                 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) {
 877                         DCBX_PRI_PG_SET(af->ets.pri_pg_tbl, i,
 878                                         (u8)dp->admin_configuration_ets_pg[i]);
 879
 880                         DP(BNX2X_MSG_DCB, "pri_pg_tbl[%d] = %02x\n",
 881                            i, DCBX_PRI_PG_GET(af->ets.pri_pg_tbl, i));
 882                 }
 883
 884                 /*For IEEE admin_recommendation_bw_percentage
 885                  *For IEEE admin_recommendation_ets_pg */
 886                 af->pfc.pri_en_bitmap = (u8)dp->admin_pfc_bitmap;
 887                 for (i = 0; i < DCBX_CONFIG_MAX_APP_PROTOCOL; i++) {
 888                         if (dp->admin_priority_app_table[i].valid) {
 889                                 struct bnx2x_admin_priority_app_table *table =
 890                                         dp->admin_priority_app_table;
 891                                 if ((ETH_TYPE_FCOE == table[i].app_id) &&
 892                                    (TRAFFIC_TYPE_ETH == table[i].traffic_type))
 893                                         traf_type = FCOE_APP_IDX;
 894                                 else if ((TCP_PORT_ISCSI == table[i].app_id) &&
 895                                    (TRAFFIC_TYPE_PORT == table[i].traffic_type))
 896                                         traf_type = ISCSI_APP_IDX;
 897                                 else
 898                                         traf_type = other_traf_type++;
 899
 900                                 af->app.app_pri_tbl[traf_type].app_id =
 901                                         table[i].app_id;
 902
 903                                 af->app.app_pri_tbl[traf_type].pri_bitmap =
 904                                         (u8)(1 << table[i].priority);
 905
 906                                 af->app.app_pri_tbl[traf_type].appBitfield =
 907                                     (DCBX_APP_ENTRY_VALID);
 908
 909                                 af->app.app_pri_tbl[traf_type].appBitfield |=
 910                                    (TRAFFIC_TYPE_ETH == table[i].traffic_type) ?
 911                                         DCBX_APP_SF_ETH_TYPE : DCBX_APP_SF_PORT;
 912                         }
 913                 }
 914
 915                 af->app.default_pri = (u8)dp->admin_default_priority;
 916         }
 917
 918         /* Write the data. */
 919         bnx2x_write_data(bp, (u32 *)&admin_mib, offset,
 920                          sizeof(struct lldp_admin_mib));
 921 }
 922
 923 void bnx2x_dcbx_set_state(struct bnx2x *bp, bool dcb_on, u32 dcbx_enabled)
 924 {
 925         if (!CHIP_IS_E1x(bp)) {
 926                 bp->dcb_state = dcb_on;
 927                 bp->dcbx_enabled = dcbx_enabled;
 928         } else {
 929                 bp->dcb_state = false;
 930                 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_INVALID;
 931         }
 932         DP(BNX2X_MSG_DCB, "DCB state [%s:%s]\n",
 933            dcb_on ? "ON" : "OFF",
 934            dcbx_enabled == BNX2X_DCBX_ENABLED_OFF ? "user-mode" :
 935            dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF ? "on-chip static" :
 936            dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON ?
 937            "on-chip with negotiation" : "invalid");
 938 }
 939
 940 void bnx2x_dcbx_init_params(struct bnx2x *bp)
 941 {
 942         bp->dcbx_config_params.admin_dcbx_version = 0x0; /* 0 - CEE; 1 - IEEE */
 943         bp->dcbx_config_params.admin_ets_willing = 1;
 944         bp->dcbx_config_params.admin_pfc_willing = 1;
 945         bp->dcbx_config_params.overwrite_settings = 1;
 946         bp->dcbx_config_params.admin_ets_enable = 1;
 947         bp->dcbx_config_params.admin_pfc_enable = 1;
 948         bp->dcbx_config_params.admin_tc_supported_tx_enable = 1;
 949         bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
 950         bp->dcbx_config_params.admin_pfc_tx_enable = 1;
 951         bp->dcbx_config_params.admin_application_priority_tx_enable = 1;
 952         bp->dcbx_config_params.admin_ets_reco_valid = 1;
 953         bp->dcbx_config_params.admin_app_priority_willing = 1;
 954         bp->dcbx_config_params.admin_configuration_bw_precentage[0] = 100;
 955         bp->dcbx_config_params.admin_configuration_bw_precentage[1] = 0;
 956         bp->dcbx_config_params.admin_configuration_bw_precentage[2] = 0;
 957         bp->dcbx_config_params.admin_configuration_bw_precentage[3] = 0;
 958         bp->dcbx_config_params.admin_configuration_bw_precentage[4] = 0;
 959         bp->dcbx_config_params.admin_configuration_bw_precentage[5] = 0;
 960         bp->dcbx_config_params.admin_configuration_bw_precentage[6] = 0;
 961         bp->dcbx_config_params.admin_configuration_bw_precentage[7] = 0;
 962         bp->dcbx_config_params.admin_configuration_ets_pg[0] = 0;
 963         bp->dcbx_config_params.admin_configuration_ets_pg[1] = 0;
 964         bp->dcbx_config_params.admin_configuration_ets_pg[2] = 0;
 965         bp->dcbx_config_params.admin_configuration_ets_pg[3] = 0;
 966         bp->dcbx_config_params.admin_configuration_ets_pg[4] = 0;
 967         bp->dcbx_config_params.admin_configuration_ets_pg[5] = 0;
 968         bp->dcbx_config_params.admin_configuration_ets_pg[6] = 0;
 969         bp->dcbx_config_params.admin_configuration_ets_pg[7] = 0;
 970         bp->dcbx_config_params.admin_recommendation_bw_precentage[0] = 100;
 971         bp->dcbx_config_params.admin_recommendation_bw_precentage[1] = 0;
 972         bp->dcbx_config_params.admin_recommendation_bw_precentage[2] = 0;
 973         bp->dcbx_config_params.admin_recommendation_bw_precentage[3] = 0;
 974         bp->dcbx_config_params.admin_recommendation_bw_precentage[4] = 0;
 975         bp->dcbx_config_params.admin_recommendation_bw_precentage[5] = 0;
 976         bp->dcbx_config_params.admin_recommendation_bw_precentage[6] = 0;
 977         bp->dcbx_config_params.admin_recommendation_bw_precentage[7] = 0;
 978         bp->dcbx_config_params.admin_recommendation_ets_pg[0] = 0;
 979         bp->dcbx_config_params.admin_recommendation_ets_pg[1] = 1;
 980         bp->dcbx_config_params.admin_recommendation_ets_pg[2] = 2;
 981         bp->dcbx_config_params.admin_recommendation_ets_pg[3] = 3;
 982         bp->dcbx_config_params.admin_recommendation_ets_pg[4] = 4;
 983         bp->dcbx_config_params.admin_recommendation_ets_pg[5] = 5;
 984         bp->dcbx_config_params.admin_recommendation_ets_pg[6] = 6;
 985         bp->dcbx_config_params.admin_recommendation_ets_pg[7] = 7;
 986         bp->dcbx_config_params.admin_pfc_bitmap = 0x0;
 987         bp->dcbx_config_params.admin_priority_app_table[0].valid = 0;
 988         bp->dcbx_config_params.admin_priority_app_table[1].valid = 0;
 989         bp->dcbx_config_params.admin_priority_app_table[2].valid = 0;
 990         bp->dcbx_config_params.admin_priority_app_table[3].valid = 0;
 991         bp->dcbx_config_params.admin_default_priority = 0;
 992 }
 993
 994 void bnx2x_dcbx_init(struct bnx2x *bp, bool update_shmem)
 995 {
 996         u32 dcbx_lldp_params_offset = SHMEM_LLDP_DCBX_PARAMS_NONE;
 997
 998         /* only PMF can send ADMIN msg to MFW in old MFW versions */
 999         if ((!bp->port.pmf) && (!(bp->flags & BC_SUPPORTS_DCBX_MSG_NON_PMF)))
1000                 return;
1001
1002         if (bp->dcbx_enabled <= 0)
1003                 return;
1004
1005         /* validate:
1006          * chip of good for dcbx version,
1007          * dcb is wanted
1008          * shmem2 contains DCBX support fields
1009          */
1010         DP(BNX2X_MSG_DCB, "dcb_state %d bp->port.pmf %d\n",
1011            bp->dcb_state, bp->port.pmf);
1012
1013         if (bp->dcb_state == BNX2X_DCB_STATE_ON &&
1014             SHMEM2_HAS(bp, dcbx_lldp_params_offset)) {
1015                 dcbx_lldp_params_offset =
1016                         SHMEM2_RD(bp, dcbx_lldp_params_offset);
1017
1018                 DP(BNX2X_MSG_DCB, "dcbx_lldp_params_offset 0x%x\n",
1019                    dcbx_lldp_params_offset);
1020
1021                 bnx2x_update_drv_flags(bp, 1 << DRV_FLAGS_DCB_CONFIGURED, 0);
1022
1023                 if (SHMEM_LLDP_DCBX_PARAMS_NONE != dcbx_lldp_params_offset) {
1024                         /* need HW lock to avoid scenario of two drivers
1025                          * writing in parallel to shmem
1026                          */
1027                         bnx2x_acquire_hw_lock(bp,
1028                                               HW_LOCK_RESOURCE_DCBX_ADMIN_MIB);
1029                         if (update_shmem)
1030                                 bnx2x_dcbx_admin_mib_updated_params(bp,
1031                                         dcbx_lldp_params_offset);
1032
1033                         /* Let HW start negotiation */
1034                         bnx2x_fw_command(bp,
1035                                          DRV_MSG_CODE_DCBX_ADMIN_PMF_MSG, 0);
1036                         /* release HW lock only after MFW acks that it finished
1037                          * reading values from shmem
1038                          */
1039                         bnx2x_release_hw_lock(bp,
1040                                               HW_LOCK_RESOURCE_DCBX_ADMIN_MIB);
1041                 }
1042         }
1043 }
1044 static void
1045 bnx2x_dcbx_print_cos_params(struct bnx2x *bp,
1046                             struct bnx2x_func_tx_start_params *pfc_fw_cfg)
1047 {
1048         u8 pri = 0;
1049         u8 cos = 0;
1050
1051         DP(BNX2X_MSG_DCB,
1052            "pfc_fw_cfg->dcb_version %x\n", pfc_fw_cfg->dcb_version);
1053         DP(BNX2X_MSG_DCB,
1054            "pdev->params.dcbx_port_params.pfc.priority_non_pauseable_mask %x\n",
1055            bp->dcbx_port_params.pfc.priority_non_pauseable_mask);
1056
1057         for (cos = 0 ; cos < bp->dcbx_port_params.ets.num_of_cos ; cos++) {
1058                 DP(BNX2X_MSG_DCB,
1059                    "pdev->params.dcbx_port_params.ets.cos_params[%d].pri_bitmask %x\n",
1060                    cos, bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask);
1061
1062                 DP(BNX2X_MSG_DCB,
1063                    "pdev->params.dcbx_port_params.ets.cos_params[%d].bw_tbl %x\n",
1064                    cos, bp->dcbx_port_params.ets.cos_params[cos].bw_tbl);
1065
1066                 DP(BNX2X_MSG_DCB,
1067                    "pdev->params.dcbx_port_params.ets.cos_params[%d].strict %x\n",
1068                    cos, bp->dcbx_port_params.ets.cos_params[cos].strict);
1069
1070                 DP(BNX2X_MSG_DCB,
1071                    "pdev->params.dcbx_port_params.ets.cos_params[%d].pauseable %x\n",
1072                    cos, bp->dcbx_port_params.ets.cos_params[cos].pauseable);
1073         }
1074
1075         for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) {
1076                 DP(BNX2X_MSG_DCB,
1077                    "pfc_fw_cfg->traffic_type_to_priority_cos[%d].priority %x\n",
1078                    pri, pfc_fw_cfg->traffic_type_to_priority_cos[pri].priority);
1079
1080                 DP(BNX2X_MSG_DCB,
1081                    "pfc_fw_cfg->traffic_type_to_priority_cos[%d].cos %x\n",
1082                    pri, pfc_fw_cfg->traffic_type_to_priority_cos[pri].cos);
1083         }
1084 }
1085
1086 /* fills help_data according to pg_info */
1087 static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp,
1088                                             u32 *pg_pri_orginal_spread,
1089                                             struct pg_help_data *help_data)
1090 {
1091         bool pg_found  = false;
1092         u32 i, traf_type, add_traf_type, add_pg;
1093         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1094         struct pg_entry_help_data *data = help_data->data; /*shortcut*/
1095
1096         /* Set to invalid */
1097         for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++)
1098                 data[i].pg = DCBX_ILLEGAL_PG;
1099
1100         for (add_traf_type = 0;
1101              add_traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX; add_traf_type++) {
1102                 pg_found = false;
1103                 if (ttp[add_traf_type] < MAX_PFC_PRIORITIES) {
1104                         add_pg = (u8)pg_pri_orginal_spread[ttp[add_traf_type]];
1105                         for (traf_type = 0;
1106                              traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1107                              traf_type++) {
1108                                 if (data[traf_type].pg == add_pg) {
1109                                         if (!(data[traf_type].pg_priority &
1110                                              (1 << ttp[add_traf_type])))
1111                                                 data[traf_type].
1112                                                         num_of_dif_pri++;
1113                                         data[traf_type].pg_priority |=
1114                                                 (1 << ttp[add_traf_type]);
1115                                         pg_found = true;
1116                                         break;
1117                                 }
1118                         }
1119                         if (false == pg_found) {
1120                                 data[help_data->num_of_pg].pg = add_pg;
1121                                 data[help_data->num_of_pg].pg_priority =
1122                                                 (1 << ttp[add_traf_type]);
1123                                 data[help_data->num_of_pg].num_of_dif_pri = 1;
1124                                 help_data->num_of_pg++;
1125                         }
1126                 }
1127                 DP(BNX2X_MSG_DCB,
1128                    "add_traf_type %d pg_found %s num_of_pg %d\n",
1129                    add_traf_type, (false == pg_found) ? "NO" : "YES",
1130                    help_data->num_of_pg);
1131         }
1132 }
1133
1134 static void bnx2x_dcbx_ets_disabled_entry_data(struct bnx2x *bp,
1135                                                struct cos_help_data *cos_data,
1136                                                u32 pri_join_mask)
1137 {
1138         /* Only one priority than only one COS */
1139         cos_data->data[0].pausable =
1140                 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1141         cos_data->data[0].pri_join_mask = pri_join_mask;
1142         cos_data->data[0].cos_bw = 100;
1143         cos_data->num_of_cos = 1;
1144 }
1145
1146 static inline void bnx2x_dcbx_add_to_cos_bw(struct bnx2x *bp,
1147                                             struct cos_entry_help_data *data,
1148                                             u8 pg_bw)
1149 {
1150         if (data->cos_bw == DCBX_INVALID_COS_BW)
1151                 data->cos_bw = pg_bw;
1152         else
1153                 data->cos_bw += pg_bw;
1154 }
1155
1156 static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp,
1157                         struct cos_help_data *cos_data,
1158                         u32 *pg_pri_orginal_spread,
1159                         struct dcbx_ets_feature *ets)
1160 {
1161         u32     pri_tested      = 0;
1162         u8      i               = 0;
1163         u8      entry           = 0;
1164         u8      pg_entry        = 0;
1165         u8      num_of_pri      = LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1166
1167         cos_data->data[0].pausable = true;
1168         cos_data->data[1].pausable = false;
1169         cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0;
1170
1171         for (i = 0 ; i < num_of_pri ; i++) {
1172                 pri_tested = 1 << bp->dcbx_port_params.
1173                                         app.traffic_type_priority[i];
1174
1175                 if (pri_tested & DCBX_PFC_PRI_NON_PAUSE_MASK(bp)) {
1176                         cos_data->data[1].pri_join_mask |= pri_tested;
1177                         entry = 1;
1178                 } else {
1179                         cos_data->data[0].pri_join_mask |= pri_tested;
1180                         entry = 0;
1181                 }
1182                 pg_entry = (u8)pg_pri_orginal_spread[bp->dcbx_port_params.
1183                                                 app.traffic_type_priority[i]];
1184                 /* There can be only one strict pg */
1185                 if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES)
1186                         bnx2x_dcbx_add_to_cos_bw(bp, &cos_data->data[entry],
1187                                 DCBX_PG_BW_GET(ets->pg_bw_tbl, pg_entry));
1188                 else
1189                         /* If we join a group and one is strict
1190                          * than the bw rules
1191                          */
1192                         cos_data->data[entry].strict =
1193                                                 BNX2X_DCBX_STRICT_COS_HIGHEST;
1194         }
1195         if ((0 == cos_data->data[0].pri_join_mask) &&
1196             (0 == cos_data->data[1].pri_join_mask))
1197                 BNX2X_ERR("dcbx error: Both groups must have priorities\n");
1198 }
1199
1200 #ifndef POWER_OF_2
1201 #define POWER_OF_2(x)   ((0 != x) && (0 == (x & (x-1))))
1202 #endif
1203
1204 static void bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params(struct bnx2x *bp,
1205                                               struct pg_help_data *pg_help_data,
1206                                               struct cos_help_data *cos_data,
1207                                               u32 pri_join_mask,
1208                                               u8 num_of_dif_pri)
1209 {
1210         u8 i = 0;
1211         u32 pri_tested = 0;
1212         u32 pri_mask_without_pri = 0;
1213         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1214         /*debug*/
1215         if (num_of_dif_pri == 1) {
1216                 bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data, pri_join_mask);
1217                 return;
1218         }
1219         /* single priority group */
1220         if (pg_help_data->data[0].pg < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1221                 /* If there are both pauseable and non-pauseable priorities,
1222                  * the pauseable priorities go to the first queue and
1223                  * the non-pauseable priorities go to the second queue.
1224                  */
1225                 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1226                         /* Pauseable */
1227                         cos_data->data[0].pausable = true;
1228                         /* Non pauseable.*/
1229                         cos_data->data[1].pausable = false;
1230
1231                         if (2 == num_of_dif_pri) {
1232                                 cos_data->data[0].cos_bw = 50;
1233                                 cos_data->data[1].cos_bw = 50;
1234                         }
1235
1236                         if (3 == num_of_dif_pri) {
1237                                 if (POWER_OF_2(DCBX_PFC_PRI_GET_PAUSE(bp,
1238                                                         pri_join_mask))) {
1239                                         cos_data->data[0].cos_bw = 33;
1240                                         cos_data->data[1].cos_bw = 67;
1241                                 } else {
1242                                         cos_data->data[0].cos_bw = 67;
1243                                         cos_data->data[1].cos_bw = 33;
1244                                 }
1245                         }
1246
1247                 } else if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask)) {
1248                         /* If there are only pauseable priorities,
1249                          * then one/two priorities go to the first queue
1250                          * and one priority goes to the second queue.
1251                          */
1252                         if (2 == num_of_dif_pri) {
1253                                 cos_data->data[0].cos_bw = 50;
1254                                 cos_data->data[1].cos_bw = 50;
1255                         } else {
1256                                 cos_data->data[0].cos_bw = 67;
1257                                 cos_data->data[1].cos_bw = 33;
1258                         }
1259                         cos_data->data[1].pausable = true;
1260                         cos_data->data[0].pausable = true;
1261                         /* All priorities except FCOE */
1262                         cos_data->data[0].pri_join_mask = (pri_join_mask &
1263                                 ((u8)~(1 << ttp[LLFC_TRAFFIC_TYPE_FCOE])));
1264                         /* Only FCOE priority.*/
1265                         cos_data->data[1].pri_join_mask =
1266                                 (1 << ttp[LLFC_TRAFFIC_TYPE_FCOE]);
1267                 } else
1268                         /* If there are only non-pauseable priorities,
1269                          * they will all go to the same queue.
1270                          */
1271                         bnx2x_dcbx_ets_disabled_entry_data(bp,
1272                                                 cos_data, pri_join_mask);
1273         } else {
1274                 /* priority group which is not BW limited (PG#15):*/
1275                 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1276                         /* If there are both pauseable and non-pauseable
1277                          * priorities, the pauseable priorities go to the first
1278                          * queue and the non-pauseable priorities
1279                          * go to the second queue.
1280                          */
1281                         if (DCBX_PFC_PRI_GET_PAUSE(bp, pri_join_mask) >
1282                             DCBX_PFC_PRI_GET_NON_PAUSE(bp, pri_join_mask)) {
1283                                 cos_data->data[0].strict =
1284                                         BNX2X_DCBX_STRICT_COS_HIGHEST;
1285                                 cos_data->data[1].strict =
1286                                         BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
1287                                                 BNX2X_DCBX_STRICT_COS_HIGHEST);
1288                         } else {
1289                                 cos_data->data[0].strict =
1290                                         BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
1291                                                 BNX2X_DCBX_STRICT_COS_HIGHEST);
1292                                 cos_data->data[1].strict =
1293                                         BNX2X_DCBX_STRICT_COS_HIGHEST;
1294                         }
1295                         /* Pauseable */
1296                         cos_data->data[0].pausable = true;
1297                         /* Non pause-able.*/
1298                         cos_data->data[1].pausable = false;
1299                 } else {
1300                         /* If there are only pauseable priorities or
1301                          * only non-pauseable,* the lower priorities go
1302                          * to the first queue and the higher priorities go
1303                          * to the second queue.
1304                          */
1305                         cos_data->data[0].pausable =
1306                                 cos_data->data[1].pausable =
1307                                 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1308
1309                         for (i = 0 ; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++) {
1310                                 pri_tested = 1 << bp->dcbx_port_params.
1311                                         app.traffic_type_priority[i];
1312                                 /* Remove priority tested */
1313                                 pri_mask_without_pri =
1314                                         (pri_join_mask & ((u8)(~pri_tested)));
1315                                 if (pri_mask_without_pri < pri_tested)
1316                                         break;
1317                         }
1318
1319                         if (i == LLFC_DRIVER_TRAFFIC_TYPE_MAX)
1320                                 BNX2X_ERR("Invalid value for pri_join_mask - could not find a priority\n");
1321
1322                         cos_data->data[0].pri_join_mask = pri_mask_without_pri;
1323                         cos_data->data[1].pri_join_mask = pri_tested;
1324                         /* Both queues are strict priority,
1325                          * and that with the highest priority
1326                          * gets the highest strict priority in the arbiter.
1327                          */
1328                         cos_data->data[0].strict =
1329                                         BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
1330                                                 BNX2X_DCBX_STRICT_COS_HIGHEST);
1331                         cos_data->data[1].strict =
1332                                         BNX2X_DCBX_STRICT_COS_HIGHEST;
1333                 }
1334         }
1335 }
1336
1337 static void bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params(
1338                             struct bnx2x                *bp,
1339                             struct  pg_help_data        *pg_help_data,
1340                             struct dcbx_ets_feature     *ets,
1341                             struct cos_help_data        *cos_data,
1342                             u32                 *pg_pri_orginal_spread,
1343                             u32                         pri_join_mask,
1344                             u8                          num_of_dif_pri)
1345 {
1346         u8 i = 0;
1347         u8 pg[DCBX_COS_MAX_NUM_E2] = { 0 };
1348
1349         /* If there are both pauseable and non-pauseable priorities,
1350          * the pauseable priorities go to the first queue and
1351          * the non-pauseable priorities go to the second queue.
1352          */
1353         if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1354                 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp,
1355                                          pg_help_data->data[0].pg_priority) ||
1356                     IS_DCBX_PFC_PRI_MIX_PAUSE(bp,
1357                                          pg_help_data->data[1].pg_priority)) {
1358                         /* If one PG contains both pauseable and
1359                          * non-pauseable priorities then ETS is disabled.
1360                          */
1361                         bnx2x_dcbx_separate_pauseable_from_non(bp, cos_data,
1362                                         pg_pri_orginal_spread, ets);
1363                         bp->dcbx_port_params.ets.enabled = false;
1364                         return;
1365                 }
1366
1367                 /* Pauseable */
1368                 cos_data->data[0].pausable = true;
1369                 /* Non pauseable. */
1370                 cos_data->data[1].pausable = false;
1371                 if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp,
1372                                 pg_help_data->data[0].pg_priority)) {
1373                         /* 0 is pauseable */
1374                         cos_data->data[0].pri_join_mask =
1375                                 pg_help_data->data[0].pg_priority;
1376                         pg[0] = pg_help_data->data[0].pg;
1377                         cos_data->data[1].pri_join_mask =
1378                                 pg_help_data->data[1].pg_priority;
1379                         pg[1] = pg_help_data->data[1].pg;
1380                 } else {/* 1 is pauseable */
1381                         cos_data->data[0].pri_join_mask =
1382                                 pg_help_data->data[1].pg_priority;
1383                         pg[0] = pg_help_data->data[1].pg;
1384                         cos_data->data[1].pri_join_mask =
1385                                 pg_help_data->data[0].pg_priority;
1386                         pg[1] = pg_help_data->data[0].pg;
1387                 }
1388         } else {
1389                 /* If there are only pauseable priorities or
1390                  * only non-pauseable, each PG goes to a queue.
1391                  */
1392                 cos_data->data[0].pausable = cos_data->data[1].pausable =
1393                         IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1394                 cos_data->data[0].pri_join_mask =
1395                         pg_help_data->data[0].pg_priority;
1396                 pg[0] = pg_help_data->data[0].pg;
1397                 cos_data->data[1].pri_join_mask =
1398                         pg_help_data->data[1].pg_priority;
1399                 pg[1] = pg_help_data->data[1].pg;
1400         }
1401
1402         /* There can be only one strict pg */
1403         for (i = 0 ; i < ARRAY_SIZE(pg); i++) {
1404                 if (pg[i] < DCBX_MAX_NUM_PG_BW_ENTRIES)
1405                         cos_data->data[i].cos_bw =
1406                                 DCBX_PG_BW_GET(ets->pg_bw_tbl, pg[i]);
1407                 else
1408                         cos_data->data[i].strict =
1409                                                 BNX2X_DCBX_STRICT_COS_HIGHEST;
1410         }
1411 }
1412
1413 static int bnx2x_dcbx_join_pgs(
1414                               struct bnx2x            *bp,
1415                               struct dcbx_ets_feature *ets,
1416                               struct pg_help_data     *pg_help_data,
1417                               u8                      required_num_of_pg)
1418 {
1419         u8 entry_joined    = pg_help_data->num_of_pg - 1;
1420         u8 entry_removed   = entry_joined + 1;
1421         u8 pg_joined       = 0;
1422
1423         if (required_num_of_pg == 0 || ARRAY_SIZE(pg_help_data->data)
1424                                                 <= pg_help_data->num_of_pg) {
1425
1426                 BNX2X_ERR("required_num_of_pg can't be zero\n");
1427                 return -EINVAL;
1428         }
1429
1430         while (required_num_of_pg < pg_help_data->num_of_pg) {
1431                 entry_joined = pg_help_data->num_of_pg - 2;
1432                 entry_removed = entry_joined + 1;
1433                 /* protect index */
1434                 entry_removed %= ARRAY_SIZE(pg_help_data->data);
1435
1436                 pg_help_data->data[entry_joined].pg_priority |=
1437                         pg_help_data->data[entry_removed].pg_priority;
1438
1439                 pg_help_data->data[entry_joined].num_of_dif_pri +=
1440                         pg_help_data->data[entry_removed].num_of_dif_pri;
1441
1442                 if (pg_help_data->data[entry_joined].pg == DCBX_STRICT_PRI_PG ||
1443                     pg_help_data->data[entry_removed].pg == DCBX_STRICT_PRI_PG)
1444                         /* Entries joined strict priority rules */
1445                         pg_help_data->data[entry_joined].pg =
1446                                                         DCBX_STRICT_PRI_PG;
1447                 else {
1448                         /* Entries can be joined join BW */
1449                         pg_joined = DCBX_PG_BW_GET(ets->pg_bw_tbl,
1450                                         pg_help_data->data[entry_joined].pg) +
1451                                     DCBX_PG_BW_GET(ets->pg_bw_tbl,
1452                                         pg_help_data->data[entry_removed].pg);
1453
1454                         DCBX_PG_BW_SET(ets->pg_bw_tbl,
1455                                 pg_help_data->data[entry_joined].pg, pg_joined);
1456                 }
1457                 /* Joined the entries */
1458                 pg_help_data->num_of_pg--;
1459         }
1460
1461         return 0;
1462 }
1463
1464 static void bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params(
1465                               struct bnx2x              *bp,
1466                               struct pg_help_data       *pg_help_data,
1467                               struct dcbx_ets_feature   *ets,
1468                               struct cos_help_data      *cos_data,
1469                               u32                       *pg_pri_orginal_spread,
1470                               u32                       pri_join_mask,
1471                               u8                        num_of_dif_pri)
1472 {
1473         u8 i = 0;
1474         u32 pri_tested = 0;
1475         u8 entry = 0;
1476         u8 pg_entry = 0;
1477         bool b_found_strict = false;
1478         u8 num_of_pri = LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1479
1480         cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0;
1481         /* If there are both pauseable and non-pauseable priorities,
1482          * the pauseable priorities go to the first queue and the
1483          * non-pauseable priorities go to the second queue.
1484          */
1485         if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask))
1486                 bnx2x_dcbx_separate_pauseable_from_non(bp,
1487                                 cos_data, pg_pri_orginal_spread, ets);
1488         else {
1489                 /* If two BW-limited PG-s were combined to one queue,
1490                  * the BW is their sum.
1491                  *
1492                  * If there are only pauseable priorities or only non-pauseable,
1493                  * and there are both BW-limited and non-BW-limited PG-s,
1494                  * the BW-limited PG/s go to one queue and the non-BW-limited
1495                  * PG/s go to the second queue.
1496                  *
1497                  * If there are only pauseable priorities or only non-pauseable
1498                  * and all are BW limited, then two priorities go to the first
1499                  * queue and one priority goes to the second queue.
1500                  *
1501                  * We will join this two cases:
1502                  * if one is BW limited it will go to the second queue
1503                  * otherwise the last priority will get it
1504                  */
1505
1506                 cos_data->data[0].pausable = cos_data->data[1].pausable =
1507                         IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1508
1509                 for (i = 0 ; i < num_of_pri; i++) {
1510                         pri_tested = 1 << bp->dcbx_port_params.
1511                                 app.traffic_type_priority[i];
1512                         pg_entry = (u8)pg_pri_orginal_spread[bp->
1513                                 dcbx_port_params.app.traffic_type_priority[i]];
1514
1515                         if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1516                                 entry = 0;
1517
1518                                 if (i == (num_of_pri-1) &&
1519                                     false == b_found_strict)
1520                                         /* last entry will be handled separately
1521                                          * If no priority is strict than last
1522                                          * entry goes to last queue.
1523                                          */
1524                                         entry = 1;
1525                                 cos_data->data[entry].pri_join_mask |=
1526                                                                 pri_tested;
1527                                 bnx2x_dcbx_add_to_cos_bw(bp,
1528                                         &cos_data->data[entry],
1529                                         DCBX_PG_BW_GET(ets->pg_bw_tbl,
1530                                                        pg_entry));
1531                         } else {
1532                                 b_found_strict = true;
1533                                 cos_data->data[1].pri_join_mask |= pri_tested;
1534                                 /* If we join a group and one is strict
1535                                  * than the bw rules
1536                                  */
1537                                 cos_data->data[1].strict =
1538                                         BNX2X_DCBX_STRICT_COS_HIGHEST;
1539                         }
1540                 }
1541         }
1542 }
1543
1544 static void bnx2x_dcbx_2cos_limit_cee_fill_cos_params(struct bnx2x *bp,
1545                                        struct pg_help_data *help_data,
1546                                        struct dcbx_ets_feature *ets,
1547                                        struct cos_help_data *cos_data,
1548                                        u32 *pg_pri_orginal_spread,
1549                                        u32 pri_join_mask,
1550                                        u8 num_of_dif_pri)
1551 {
1552         /* default E2 settings */
1553         cos_data->num_of_cos = DCBX_COS_MAX_NUM_E2;
1554
1555         switch (help_data->num_of_pg) {
1556         case 1:
1557                 bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params(
1558                                                bp,
1559                                                help_data,
1560                                                cos_data,
1561                                                pri_join_mask,
1562                                                num_of_dif_pri);
1563                 break;
1564         case 2:
1565                 bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params(
1566                                             bp,
1567                                             help_data,
1568                                             ets,
1569                                             cos_data,
1570                                             pg_pri_orginal_spread,
1571                                             pri_join_mask,
1572                                             num_of_dif_pri);
1573                 break;
1574
1575         case 3:
1576                 bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params(
1577                                               bp,
1578                                               help_data,
1579                                               ets,
1580                                               cos_data,
1581                                               pg_pri_orginal_spread,
1582                                               pri_join_mask,
1583                                               num_of_dif_pri);
1584                 break;
1585         default:
1586                 BNX2X_ERR("Wrong pg_help_data.num_of_pg\n");
1587                 bnx2x_dcbx_ets_disabled_entry_data(bp,
1588                                                    cos_data, pri_join_mask);
1589         }
1590 }
1591
1592 static int bnx2x_dcbx_spread_strict_pri(struct bnx2x *bp,
1593                                         struct cos_help_data *cos_data,
1594                                         u8 entry,
1595                                         u8 num_spread_of_entries,
1596                                         u8 strict_app_pris)
1597 {
1598         u8 strict_pri = BNX2X_DCBX_STRICT_COS_HIGHEST;
1599         u8 num_of_app_pri = MAX_PFC_PRIORITIES;
1600         u8 app_pri_bit = 0;
1601
1602         while (num_spread_of_entries && num_of_app_pri > 0) {
1603                 app_pri_bit = 1 << (num_of_app_pri - 1);
1604                 if (app_pri_bit & strict_app_pris) {
1605                         struct cos_entry_help_data *data = &cos_data->
1606                                                                 data[entry];
1607                         num_spread_of_entries--;
1608                         if (num_spread_of_entries == 0) {
1609                                 /* last entry needed put all the entries left */
1610                                 data->cos_bw = DCBX_INVALID_COS_BW;
1611                                 data->strict = strict_pri;
1612                                 data->pri_join_mask = strict_app_pris;
1613                                 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1614                                                         data->pri_join_mask);
1615                         } else {
1616                                 strict_app_pris &= ~app_pri_bit;
1617
1618                                 data->cos_bw = DCBX_INVALID_COS_BW;
1619                                 data->strict = strict_pri;
1620                                 data->pri_join_mask = app_pri_bit;
1621                                 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1622                                                         data->pri_join_mask);
1623                         }
1624
1625                         strict_pri =
1626                             BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(strict_pri);
1627                         entry++;
1628                 }
1629
1630                 num_of_app_pri--;
1631         }
1632
1633         if (num_spread_of_entries) {
1634                 BNX2X_ERR("Didn't succeed to spread strict priorities\n");
1635                 return -EINVAL;
1636         }
1637
1638         return 0;
1639 }
1640
1641 static u8 bnx2x_dcbx_cee_fill_strict_pri(struct bnx2x *bp,
1642                                          struct cos_help_data *cos_data,
1643                                          u8 entry,
1644                                          u8 num_spread_of_entries,
1645                                          u8 strict_app_pris)
1646 {
1647         if (bnx2x_dcbx_spread_strict_pri(bp, cos_data, entry,
1648                                          num_spread_of_entries,
1649                                          strict_app_pris)) {
1650                 struct cos_entry_help_data *data = &cos_data->
1651                                                     data[entry];
1652                 /* Fill BW entry */
1653                 data->cos_bw = DCBX_INVALID_COS_BW;
1654                 data->strict = BNX2X_DCBX_STRICT_COS_HIGHEST;
1655                 data->pri_join_mask = strict_app_pris;
1656                 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1657                                  data->pri_join_mask);
1658                 return 1;
1659         }
1660
1661         return num_spread_of_entries;
1662 }
1663
1664 static void bnx2x_dcbx_cee_fill_cos_params(struct bnx2x *bp,
1665                                            struct pg_help_data *help_data,
1666                                            struct dcbx_ets_feature *ets,
1667                                            struct cos_help_data *cos_data,
1668                                            u32 pri_join_mask)
1669
1670 {
1671         u8 need_num_of_entries = 0;
1672         u8 i = 0;
1673         u8 entry = 0;
1674
1675         /*
1676          * if the number of requested PG-s in CEE is greater than 3
1677          * then the results are not determined since this is a violation
1678          * of the standard.
1679          */
1680         if (help_data->num_of_pg > DCBX_COS_MAX_NUM_E3B0) {
1681                 if (bnx2x_dcbx_join_pgs(bp, ets, help_data,
1682                                         DCBX_COS_MAX_NUM_E3B0)) {
1683                         BNX2X_ERR("Unable to reduce the number of PGs - we will disables ETS\n");
1684                         bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data,
1685                                                            pri_join_mask);
1686                         return;
1687                 }
1688         }
1689
1690         for (i = 0 ; i < help_data->num_of_pg; i++) {
1691                 struct pg_entry_help_data *pg =  &help_data->data[i];
1692                 if (pg->pg < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1693                         struct cos_entry_help_data *data = &cos_data->
1694                                                             data[entry];
1695                         /* Fill BW entry */
1696                         data->cos_bw = DCBX_PG_BW_GET(ets->pg_bw_tbl, pg->pg);
1697                         data->strict = BNX2X_DCBX_STRICT_INVALID;
1698                         data->pri_join_mask = pg->pg_priority;
1699                         data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1700                                                 data->pri_join_mask);
1701
1702                         entry++;
1703                 } else {
1704                         need_num_of_entries =  min_t(u8,
1705                                 (u8)pg->num_of_dif_pri,
1706                                 (u8)DCBX_COS_MAX_NUM_E3B0 -
1707                                                  help_data->num_of_pg + 1);
1708                         /*
1709                          * If there are still VOQ-s which have no associated PG,
1710                          * then associate these VOQ-s to PG15. These PG-s will
1711                          * be used for SP between priorities on PG15.
1712                          */
1713                         entry += bnx2x_dcbx_cee_fill_strict_pri(bp, cos_data,
1714                                 entry, need_num_of_entries, pg->pg_priority);
1715                 }
1716         }
1717
1718         /* the entry will represent the number of COSes used */
1719         cos_data->num_of_cos = entry;
1720 }
1721 static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp,
1722                                        struct pg_help_data *help_data,
1723                                        struct dcbx_ets_feature *ets,
1724                                        u32 *pg_pri_orginal_spread)
1725 {
1726         struct cos_help_data         cos_data;
1727         u8                    i                           = 0;
1728         u32                   pri_join_mask               = 0;
1729         u8                    num_of_dif_pri              = 0;
1730
1731         memset(&cos_data, 0, sizeof(cos_data));
1732
1733         /* Validate the pg value */
1734         for (i = 0; i < help_data->num_of_pg ; i++) {
1735                 if (DCBX_STRICT_PRIORITY != help_data->data[i].pg &&
1736                     DCBX_MAX_NUM_PG_BW_ENTRIES <= help_data->data[i].pg)
1737                         BNX2X_ERR("Invalid pg[%d] data %x\n", i,
1738                                   help_data->data[i].pg);
1739                 pri_join_mask   |=  help_data->data[i].pg_priority;
1740                 num_of_dif_pri  += help_data->data[i].num_of_dif_pri;
1741         }
1742
1743         /* defaults */
1744         cos_data.num_of_cos = 1;
1745         for (i = 0; i < ARRAY_SIZE(cos_data.data); i++) {
1746                 cos_data.data[i].pri_join_mask = 0;
1747                 cos_data.data[i].pausable = false;
1748                 cos_data.data[i].strict = BNX2X_DCBX_STRICT_INVALID;
1749                 cos_data.data[i].cos_bw = DCBX_INVALID_COS_BW;
1750         }
1751
1752         if (CHIP_IS_E3B0(bp))
1753                 bnx2x_dcbx_cee_fill_cos_params(bp, help_data, ets,
1754                                                &cos_data, pri_join_mask);
1755         else /* E2 + E3A0 */
1756                 bnx2x_dcbx_2cos_limit_cee_fill_cos_params(bp,
1757                                                           help_data, ets,
1758                                                           &cos_data,
1759                                                           pg_pri_orginal_spread,
1760                                                           pri_join_mask,
1761                                                           num_of_dif_pri);
1762
1763         for (i = 0; i < cos_data.num_of_cos ; i++) {
1764                 struct bnx2x_dcbx_cos_params *p =
1765                         &bp->dcbx_port_params.ets.cos_params[i];
1766
1767                 p->strict = cos_data.data[i].strict;
1768                 p->bw_tbl = cos_data.data[i].cos_bw;
1769                 p->pri_bitmask = cos_data.data[i].pri_join_mask;
1770                 p->pauseable = cos_data.data[i].pausable;
1771
1772                 /* sanity */
1773                 if (p->bw_tbl != DCBX_INVALID_COS_BW ||
1774                     p->strict != BNX2X_DCBX_STRICT_INVALID) {
1775                         if (p->pri_bitmask == 0)
1776                                 BNX2X_ERR("Invalid pri_bitmask for %d\n", i);
1777
1778                         if (CHIP_IS_E2(bp) || CHIP_IS_E3A0(bp)) {
1779
1780                                 if (p->pauseable &&
1781                                     DCBX_PFC_PRI_GET_NON_PAUSE(bp,
1782                                                 p->pri_bitmask) != 0)
1783                                         BNX2X_ERR("Inconsistent config for pausable COS %d\n",
1784                                                   i);
1785
1786                                 if (!p->pauseable &&
1787                                     DCBX_PFC_PRI_GET_PAUSE(bp,
1788                                                 p->pri_bitmask) != 0)
1789                                         BNX2X_ERR("Inconsistent config for nonpausable COS %d\n",
1790                                                   i);
1791                         }
1792                 }
1793
1794                 if (p->pauseable)
1795                         DP(BNX2X_MSG_DCB, "COS %d PAUSABLE prijoinmask 0x%x\n",
1796                                   i, cos_data.data[i].pri_join_mask);
1797                 else
1798                         DP(BNX2X_MSG_DCB,
1799                            "COS %d NONPAUSABLE prijoinmask 0x%x\n",
1800                            i, cos_data.data[i].pri_join_mask);
1801         }
1802
1803         bp->dcbx_port_params.ets.num_of_cos = cos_data.num_of_cos ;
1804 }
1805
1806 static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp,
1807                                 u32 *set_configuration_ets_pg,
1808                                 u32 *pri_pg_tbl)
1809 {
1810         int i;
1811
1812         for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) {
1813                 set_configuration_ets_pg[i] = DCBX_PRI_PG_GET(pri_pg_tbl, i);
1814
1815                 DP(BNX2X_MSG_DCB, "set_configuration_ets_pg[%d] = 0x%x\n",
1816                    i, set_configuration_ets_pg[i]);
1817         }
1818 }
1819
1820 static void bnx2x_dcbx_fw_struct(struct bnx2x *bp,
1821                                  struct bnx2x_func_tx_start_params *pfc_fw_cfg)
1822 {
1823         u16 pri_bit = 0;
1824         u8 cos = 0, pri = 0;
1825         struct priority_cos *tt2cos;
1826         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1827         int mfw_configured = SHMEM2_HAS(bp, drv_flags) &&
1828                              GET_FLAGS(SHMEM2_RD(bp, drv_flags),
1829                                        1 << DRV_FLAGS_DCB_MFW_CONFIGURED);
1830
1831         memset(pfc_fw_cfg, 0, sizeof(*pfc_fw_cfg));
1832
1833         /* to disable DCB - the structure must be zeroed */
1834         if ((bp->dcbx_error & DCBX_REMOTE_MIB_ERROR) && !mfw_configured)
1835                 return;
1836
1837         /*shortcut*/
1838         tt2cos = pfc_fw_cfg->traffic_type_to_priority_cos;
1839
1840         /* Fw version should be incremented each update */
1841         pfc_fw_cfg->dcb_version = ++bp->dcb_version;
1842         pfc_fw_cfg->dcb_enabled = 1;
1843
1844         /* Fill priority parameters */
1845         for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) {
1846                 tt2cos[pri].priority = ttp[pri];
1847                 pri_bit = 1 << tt2cos[pri].priority;
1848
1849                 /* Fill COS parameters based on COS calculated to
1850                  * make it more general for future use */
1851                 for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++)
1852                         if (bp->dcbx_port_params.ets.cos_params[cos].
1853                                                 pri_bitmask & pri_bit)
1854                                         tt2cos[pri].cos = cos;
1855
1856                 pfc_fw_cfg->dcb_outer_pri[pri]  = ttp[pri];
1857         }
1858
1859         /* we never want the FW to add a 0 vlan tag */
1860         pfc_fw_cfg->dont_add_pri_0_en = 1;
1861
1862         bnx2x_dcbx_print_cos_params(bp, pfc_fw_cfg);
1863 }
1864
1865 void bnx2x_dcbx_pmf_update(struct bnx2x *bp)
1866 {
1867         /* if we need to synchronize DCBX result from prev PMF
1868          * read it from shmem and update bp and netdev accordingly
1869          */
1870         if (SHMEM2_HAS(bp, drv_flags) &&
1871            GET_FLAGS(SHMEM2_RD(bp, drv_flags), 1 << DRV_FLAGS_DCB_CONFIGURED)) {
1872                 /* Read neg results if dcbx is in the FW */
1873                 if (bnx2x_dcbx_read_shmem_neg_results(bp))
1874                         return;
1875
1876                 bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat,
1877                                           bp->dcbx_error);
1878                 bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat,
1879                                          bp->dcbx_error);
1880 #ifdef BCM_DCBNL
1881                 /*
1882                  * Add new app tlvs to dcbnl
1883                  */
1884                 bnx2x_dcbnl_update_applist(bp, false);
1885                 /*
1886                  * Send a notification for the new negotiated parameters
1887                  */
1888                 dcbnl_cee_notify(bp->dev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0);
1889 #endif
1890                 /*
1891                  * reconfigure the netdevice with the results of the new
1892                  * dcbx negotiation.
1893                  */
1894                 bnx2x_dcbx_update_tc_mapping(bp);
1895         }
1896 }
1897
1898 /* DCB netlink */
1899 #ifdef BCM_DCBNL
1900
1901 #define BNX2X_DCBX_CAPS         (DCB_CAP_DCBX_LLD_MANAGED | \
1902                                 DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_STATIC)
1903
1904 static inline bool bnx2x_dcbnl_set_valid(struct bnx2x *bp)
1905 {
1906         /* validate dcbnl call that may change HW state:
1907          * DCB is on and DCBX mode was SUCCESSFULLY set by the user.
1908          */
1909         return bp->dcb_state && bp->dcbx_mode_uset;
1910 }
1911
1912 static u8 bnx2x_dcbnl_get_state(struct net_device *netdev)
1913 {
1914         struct bnx2x *bp = netdev_priv(netdev);
1915         DP(BNX2X_MSG_DCB, "state = %d\n", bp->dcb_state);
1916         return bp->dcb_state;
1917 }
1918
1919 static u8 bnx2x_dcbnl_set_state(struct net_device *netdev, u8 state)
1920 {
1921         struct bnx2x *bp = netdev_priv(netdev);
1922         DP(BNX2X_MSG_DCB, "state = %s\n", state ? "on" : "off");
1923
1924         /* Fail to set state to "enabled" if dcbx is disabled in nvram */
1925         if (state && ((bp->dcbx_enabled == BNX2X_DCBX_ENABLED_OFF) ||
1926                       (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_INVALID))) {
1927                 DP(BNX2X_MSG_DCB, "Can not set dcbx to enabled while it is disabled in nvm\n");
1928                 return 1;
1929         }
1930
1931         bnx2x_dcbx_set_state(bp, (state ? true : false), bp->dcbx_enabled);
1932         return 0;
1933 }
1934
1935 static void bnx2x_dcbnl_get_perm_hw_addr(struct net_device *netdev,
1936                                          u8 *perm_addr)
1937 {
1938         struct bnx2x *bp = netdev_priv(netdev);
1939         DP(BNX2X_MSG_DCB, "GET-PERM-ADDR\n");
1940
1941         /* first the HW mac address */
1942         memcpy(perm_addr, netdev->dev_addr, netdev->addr_len);
1943
1944         if (CNIC_LOADED(bp))
1945                 /* second SAN address */
1946                 memcpy(perm_addr+netdev->addr_len, bp->fip_mac,
1947                        netdev->addr_len);
1948 }
1949
1950 static void bnx2x_dcbnl_set_pg_tccfg_tx(struct net_device *netdev, int prio,
1951                                         u8 prio_type, u8 pgid, u8 bw_pct,
1952                                         u8 up_map)
1953 {
1954         struct bnx2x *bp = netdev_priv(netdev);
1955
1956         DP(BNX2X_MSG_DCB, "prio[%d] = %d\n", prio, pgid);
1957         if (!bnx2x_dcbnl_set_valid(bp) || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES)
1958                 return;
1959
1960         /**
1961          * bw_pct ignored -     band-width percentage devision between user
1962          *                      priorities within the same group is not
1963          *                      standard and hence not supported
1964          *
1965          * prio_type ignored -  priority levels within the same group are not
1966          *                      standard and hence are not supported. According
1967          *                      to the standard pgid 15 is dedicated to strict
1968          *                      priority traffic (on the port level).
1969          *
1970          * up_map ignored
1971          */
1972
1973         bp->dcbx_config_params.admin_configuration_ets_pg[prio] = pgid;
1974         bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
1975 }
1976
1977 static void bnx2x_dcbnl_set_pg_bwgcfg_tx(struct net_device *netdev,
1978                                          int pgid, u8 bw_pct)
1979 {
1980         struct bnx2x *bp = netdev_priv(netdev);
1981         DP(BNX2X_MSG_DCB, "pgid[%d] = %d\n", pgid, bw_pct);
1982
1983         if (!bnx2x_dcbnl_set_valid(bp) || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES)
1984                 return;
1985
1986         bp->dcbx_config_params.admin_configuration_bw_precentage[pgid] = bw_pct;
1987         bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
1988 }
1989
1990 static void bnx2x_dcbnl_set_pg_tccfg_rx(struct net_device *netdev, int prio,
1991                                         u8 prio_type, u8 pgid, u8 bw_pct,
1992                                         u8 up_map)
1993 {
1994         struct bnx2x *bp = netdev_priv(netdev);
1995         DP(BNX2X_MSG_DCB, "Nothing to set; No RX support\n");
1996 }
1997
1998 static void bnx2x_dcbnl_set_pg_bwgcfg_rx(struct net_device *netdev,
1999                                          int pgid, u8 bw_pct)
2000 {
2001         struct bnx2x *bp = netdev_priv(netdev);
2002         DP(BNX2X_MSG_DCB, "Nothing to set; No RX support\n");
2003 }
2004
2005 static void bnx2x_dcbnl_get_pg_tccfg_tx(struct net_device *netdev, int prio,
2006                                         u8 *prio_type, u8 *pgid, u8 *bw_pct,
2007                                         u8 *up_map)
2008 {
2009         struct bnx2x *bp = netdev_priv(netdev);
2010         DP(BNX2X_MSG_DCB, "prio = %d\n", prio);
2011
2012         /**
2013          * bw_pct ignored -     band-width percentage devision between user
2014          *                      priorities within the same group is not
2015          *                      standard and hence not supported
2016          *
2017          * prio_type ignored -  priority levels within the same group are not
2018          *                      standard and hence are not supported. According
2019          *                      to the standard pgid 15 is dedicated to strict
2020          *                      priority traffic (on the port level).
2021          *
2022          * up_map ignored
2023          */
2024         *up_map = *bw_pct = *prio_type = *pgid = 0;
2025
2026         if (!bp->dcb_state || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES)
2027                 return;
2028
2029         *pgid = DCBX_PRI_PG_GET(bp->dcbx_local_feat.ets.pri_pg_tbl, prio);
2030 }
2031
2032 static void bnx2x_dcbnl_get_pg_bwgcfg_tx(struct net_device *netdev,
2033                                          int pgid, u8 *bw_pct)
2034 {
2035         struct bnx2x *bp = netdev_priv(netdev);
2036         DP(BNX2X_MSG_DCB, "pgid = %d\n", pgid);
2037
2038         *bw_pct = 0;
2039
2040         if (!bp->dcb_state || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES)
2041                 return;
2042
2043         *bw_pct = DCBX_PG_BW_GET(bp->dcbx_local_feat.ets.pg_bw_tbl, pgid);
2044 }
2045
2046 static void bnx2x_dcbnl_get_pg_tccfg_rx(struct net_device *netdev, int prio,
2047                                         u8 *prio_type, u8 *pgid, u8 *bw_pct,
2048                                         u8 *up_map)
2049 {
2050         struct bnx2x *bp = netdev_priv(netdev);
2051         DP(BNX2X_MSG_DCB, "Nothing to get; No RX support\n");
2052
2053         *prio_type = *pgid = *bw_pct = *up_map = 0;
2054 }
2055
2056 static void bnx2x_dcbnl_get_pg_bwgcfg_rx(struct net_device *netdev,
2057                                          int pgid, u8 *bw_pct)
2058 {
2059         struct bnx2x *bp = netdev_priv(netdev);
2060         DP(BNX2X_MSG_DCB, "Nothing to get; No RX support\n");
2061
2062         *bw_pct = 0;
2063 }
2064
2065 static void bnx2x_dcbnl_set_pfc_cfg(struct net_device *netdev, int prio,
2066                                     u8 setting)
2067 {
2068         struct bnx2x *bp = netdev_priv(netdev);
2069         DP(BNX2X_MSG_DCB, "prio[%d] = %d\n", prio, setting);
2070
2071         if (!bnx2x_dcbnl_set_valid(bp) || prio >= MAX_PFC_PRIORITIES)
2072                 return;
2073
2074         if (setting) {
2075                 bp->dcbx_config_params.admin_pfc_bitmap |= (1 << prio);
2076                 bp->dcbx_config_params.admin_pfc_tx_enable = 1;
2077         } else {
2078                 bp->dcbx_config_params.admin_pfc_bitmap &= ~(1 << prio);
2079         }
2080 }
2081
2082 static void bnx2x_dcbnl_get_pfc_cfg(struct net_device *netdev, int prio,
2083                                     u8 *setting)
2084 {
2085         struct bnx2x *bp = netdev_priv(netdev);
2086         DP(BNX2X_MSG_DCB, "prio = %d\n", prio);
2087
2088         *setting = 0;
2089
2090         if (!bp->dcb_state || prio >= MAX_PFC_PRIORITIES)
2091                 return;
2092
2093         *setting = (bp->dcbx_local_feat.pfc.pri_en_bitmap >> prio) & 0x1;
2094 }
2095
2096 static u8 bnx2x_dcbnl_set_all(struct net_device *netdev)
2097 {
2098         struct bnx2x *bp = netdev_priv(netdev);
2099
2100         DP(BNX2X_MSG_DCB, "SET-ALL\n");
2101
2102         if (!bnx2x_dcbnl_set_valid(bp))
2103                 return 1;
2104
2105         if (bp->recovery_state != BNX2X_RECOVERY_DONE) {
2106                 netdev_err(bp->dev,
2107                            "Handling parity error recovery. Try again later\n");
2108                 return 1;
2109         }
2110         if (netif_running(bp->dev)) {
2111                 bnx2x_update_drv_flags(bp,
2112                                        1 << DRV_FLAGS_DCB_MFW_CONFIGURED,
2113                                        1);
2114                 bnx2x_dcbx_init(bp, true);
2115         }
2116         DP(BNX2X_MSG_DCB, "set_dcbx_params done\n");
2117
2118         return 0;
2119 }
2120
2121 static u8 bnx2x_dcbnl_get_cap(struct net_device *netdev, int capid, u8 *cap)
2122 {
2123         struct bnx2x *bp = netdev_priv(netdev);
2124         u8 rval = 0;
2125
2126         if (bp->dcb_state) {
2127                 switch (capid) {
2128                 case DCB_CAP_ATTR_PG:
2129                         *cap = true;
2130                         break;
2131                 case DCB_CAP_ATTR_PFC:
2132                         *cap = true;
2133                         break;
2134                 case DCB_CAP_ATTR_UP2TC:
2135                         *cap = false;
2136                         break;
2137                 case DCB_CAP_ATTR_PG_TCS:
2138                         *cap = 0x80;    /* 8 priorities for PGs */
2139                         break;
2140                 case DCB_CAP_ATTR_PFC_TCS:
2141                         *cap = 0x80;    /* 8 priorities for PFC */
2142                         break;
2143                 case DCB_CAP_ATTR_GSP:
2144                         *cap = true;
2145                         break;
2146                 case DCB_CAP_ATTR_BCN:
2147                         *cap = false;
2148                         break;
2149                 case DCB_CAP_ATTR_DCBX:
2150                         *cap = BNX2X_DCBX_CAPS;
2151                         break;
2152                 default:
2153                         BNX2X_ERR("Non valid capability ID\n");
2154                         rval = 1;
2155                         break;
2156                 }
2157         } else {
2158                 DP(BNX2X_MSG_DCB, "DCB disabled\n");
2159                 rval = 1;
2160         }
2161
2162         DP(BNX2X_MSG_DCB, "capid %d:%x\n", capid, *cap);
2163         return rval;
2164 }
2165
2166 static int bnx2x_dcbnl_get_numtcs(struct net_device *netdev, int tcid, u8 *num)
2167 {
2168         struct bnx2x *bp = netdev_priv(netdev);
2169         u8 rval = 0;
2170
2171         DP(BNX2X_MSG_DCB, "tcid %d\n", tcid);
2172
2173         if (bp->dcb_state) {
2174                 switch (tcid) {
2175                 case DCB_NUMTCS_ATTR_PG:
2176                         *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 :
2177                                                   DCBX_COS_MAX_NUM_E2;
2178                         break;
2179                 case DCB_NUMTCS_ATTR_PFC:
2180                         *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 :
2181                                                   DCBX_COS_MAX_NUM_E2;
2182                         break;
2183                 default:
2184                         BNX2X_ERR("Non valid TC-ID\n");
2185                         rval = 1;
2186                         break;
2187                 }
2188         } else {
2189                 DP(BNX2X_MSG_DCB, "DCB disabled\n");
2190                 rval = 1;
2191         }
2192
2193         return rval;
2194 }
2195
2196 static int bnx2x_dcbnl_set_numtcs(struct net_device *netdev, int tcid, u8 num)
2197 {
2198         struct bnx2x *bp = netdev_priv(netdev);
2199         DP(BNX2X_MSG_DCB, "num tcs = %d; Not supported\n", num);
2200         return -EINVAL;
2201 }
2202
2203 static u8 bnx2x_dcbnl_get_pfc_state(struct net_device *netdev)
2204 {
2205         struct bnx2x *bp = netdev_priv(netdev);
2206         DP(BNX2X_MSG_DCB, "state = %d\n", bp->dcbx_local_feat.pfc.enabled);
2207
2208         if (!bp->dcb_state)
2209                 return 0;
2210
2211         return bp->dcbx_local_feat.pfc.enabled;
2212 }
2213
2214 static void bnx2x_dcbnl_set_pfc_state(struct net_device *netdev, u8 state)
2215 {
2216         struct bnx2x *bp = netdev_priv(netdev);
2217         DP(BNX2X_MSG_DCB, "state = %s\n", state ? "on" : "off");
2218
2219         if (!bnx2x_dcbnl_set_valid(bp))
2220                 return;
2221
2222         bp->dcbx_config_params.admin_pfc_tx_enable =
2223         bp->dcbx_config_params.admin_pfc_enable = (state ? 1 : 0);
2224 }
2225
2226 static void bnx2x_admin_app_set_ent(
2227         struct bnx2x_admin_priority_app_table *app_ent,
2228         u8 idtype, u16 idval, u8 up)
2229 {
2230         app_ent->valid = 1;
2231
2232         switch (idtype) {
2233         case DCB_APP_IDTYPE_ETHTYPE:
2234                 app_ent->traffic_type = TRAFFIC_TYPE_ETH;
2235                 break;
2236         case DCB_APP_IDTYPE_PORTNUM:
2237                 app_ent->traffic_type = TRAFFIC_TYPE_PORT;
2238                 break;
2239         default:
2240                 break; /* never gets here */
2241         }
2242         app_ent->app_id = idval;
2243         app_ent->priority = up;
2244 }
2245
2246 static bool bnx2x_admin_app_is_equal(
2247         struct bnx2x_admin_priority_app_table *app_ent,
2248         u8 idtype, u16 idval)
2249 {
2250         if (!app_ent->valid)
2251                 return false;
2252
2253         switch (idtype) {
2254         case DCB_APP_IDTYPE_ETHTYPE:
2255                 if (app_ent->traffic_type != TRAFFIC_TYPE_ETH)
2256                         return false;
2257                 break;
2258         case DCB_APP_IDTYPE_PORTNUM:
2259                 if (app_ent->traffic_type != TRAFFIC_TYPE_PORT)
2260                         return false;
2261                 break;
2262         default:
2263                 return false;
2264         }
2265         if (app_ent->app_id != idval)
2266                 return false;
2267
2268         return true;
2269 }
2270
2271 static int bnx2x_set_admin_app_up(struct bnx2x *bp, u8 idtype, u16 idval, u8 up)
2272 {
2273         int i, ff;
2274
2275         /* iterate over the app entries looking for idtype and idval */
2276         for (i = 0, ff = -1; i < DCBX_CONFIG_MAX_APP_PROTOCOL; i++) {
2277                 struct bnx2x_admin_priority_app_table *app_ent =
2278                         &bp->dcbx_config_params.admin_priority_app_table[i];
2279                 if (bnx2x_admin_app_is_equal(app_ent, idtype, idval))
2280                         break;
2281
2282                 if (ff < 0 && !app_ent->valid)
2283                         ff = i;
2284         }
2285         if (i < DCBX_CONFIG_MAX_APP_PROTOCOL)
2286                 /* if found overwrite up */
2287                 bp->dcbx_config_params.
2288                         admin_priority_app_table[i].priority = up;
2289         else if (ff >= 0)
2290                 /* not found use first-free */
2291                 bnx2x_admin_app_set_ent(
2292                         &bp->dcbx_config_params.admin_priority_app_table[ff],
2293                         idtype, idval, up);
2294         else {
2295                 /* app table is full */
2296                 BNX2X_ERR("Application table is too large\n");
2297                 return -EBUSY;
2298         }
2299
2300         /* up configured, if not 0 make sure feature is enabled */
2301         if (up)
2302                 bp->dcbx_config_params.admin_application_priority_tx_enable = 1;
2303
2304         return 0;
2305 }
2306
2307 static int bnx2x_dcbnl_set_app_up(struct net_device *netdev, u8 idtype,
2308                                   u16 idval, u8 up)
2309 {
2310         struct bnx2x *bp = netdev_priv(netdev);
2311
2312         DP(BNX2X_MSG_DCB, "app_type %d, app_id %x, prio bitmap %d\n",
2313            idtype, idval, up);
2314
2315         if (!bnx2x_dcbnl_set_valid(bp)) {
2316                 DP(BNX2X_MSG_DCB, "dcbnl call not valid\n");
2317                 return -EINVAL;
2318         }
2319
2320         /* verify idtype */
2321         switch (idtype) {
2322         case DCB_APP_IDTYPE_ETHTYPE:
2323         case DCB_APP_IDTYPE_PORTNUM:
2324                 break;
2325         default:
2326                 DP(BNX2X_MSG_DCB, "Wrong ID type\n");
2327                 return -EINVAL;
2328         }
2329         return bnx2x_set_admin_app_up(bp, idtype, idval, up);
2330 }
2331
2332 static u8 bnx2x_dcbnl_get_dcbx(struct net_device *netdev)
2333 {
2334         struct bnx2x *bp = netdev_priv(netdev);
2335         u8 state;
2336
2337         state = DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_CEE;
2338
2339         if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF)
2340                 state |= DCB_CAP_DCBX_STATIC;
2341
2342         return state;
2343 }
2344
2345 static u8 bnx2x_dcbnl_set_dcbx(struct net_device *netdev, u8 state)
2346 {
2347         struct bnx2x *bp = netdev_priv(netdev);
2348         DP(BNX2X_MSG_DCB, "state = %02x\n", state);
2349
2350         /* set dcbx mode */
2351
2352         if ((state & BNX2X_DCBX_CAPS) != state) {
2353                 BNX2X_ERR("Requested DCBX mode %x is beyond advertised capabilities\n",
2354                           state);
2355                 return 1;
2356         }
2357
2358         if (bp->dcb_state != BNX2X_DCB_STATE_ON) {
2359                 BNX2X_ERR("DCB turned off, DCBX configuration is invalid\n");
2360                 return 1;
2361         }
2362
2363         if (state & DCB_CAP_DCBX_STATIC)
2364                 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_OFF;
2365         else
2366                 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_ON;
2367
2368         bp->dcbx_mode_uset = true;
2369         return 0;
2370 }
2371
2372 static u8 bnx2x_dcbnl_get_featcfg(struct net_device *netdev, int featid,
2373                                   u8 *flags)
2374 {
2375         struct bnx2x *bp = netdev_priv(netdev);
2376         u8 rval = 0;
2377
2378         DP(BNX2X_MSG_DCB, "featid %d\n", featid);
2379
2380         if (bp->dcb_state) {
2381                 *flags = 0;
2382                 switch (featid) {
2383                 case DCB_FEATCFG_ATTR_PG:
2384                         if (bp->dcbx_local_feat.ets.enabled)
2385                                 *flags |= DCB_FEATCFG_ENABLE;
2386                         if (bp->dcbx_error & (DCBX_LOCAL_ETS_ERROR |
2387                                               DCBX_REMOTE_MIB_ERROR))
2388                                 *flags |= DCB_FEATCFG_ERROR;
2389                         break;
2390                 case DCB_FEATCFG_ATTR_PFC:
2391                         if (bp->dcbx_local_feat.pfc.enabled)
2392                                 *flags |= DCB_FEATCFG_ENABLE;
2393                         if (bp->dcbx_error & (DCBX_LOCAL_PFC_ERROR |
2394                                               DCBX_LOCAL_PFC_MISMATCH |
2395                                               DCBX_REMOTE_MIB_ERROR))
2396                                 *flags |= DCB_FEATCFG_ERROR;
2397                         break;
2398                 case DCB_FEATCFG_ATTR_APP:
2399                         if (bp->dcbx_local_feat.app.enabled)
2400                                 *flags |= DCB_FEATCFG_ENABLE;
2401                         if (bp->dcbx_error & (DCBX_LOCAL_APP_ERROR |
2402                                               DCBX_LOCAL_APP_MISMATCH |
2403                                               DCBX_REMOTE_MIB_ERROR))
2404                                 *flags |= DCB_FEATCFG_ERROR;
2405                         break;
2406                 default:
2407                         BNX2X_ERR("Non valid feature-ID\n");
2408                         rval = 1;
2409                         break;
2410                 }
2411         } else {
2412                 DP(BNX2X_MSG_DCB, "DCB disabled\n");
2413                 rval = 1;
2414         }
2415
2416         return rval;
2417 }
2418
2419 static u8 bnx2x_dcbnl_set_featcfg(struct net_device *netdev, int featid,
2420                                   u8 flags)
2421 {
2422         struct bnx2x *bp = netdev_priv(netdev);
2423         u8 rval = 0;
2424
2425         DP(BNX2X_MSG_DCB, "featid = %d flags = %02x\n", featid, flags);
2426
2427         /* ignore the 'advertise' flag */
2428         if (bnx2x_dcbnl_set_valid(bp)) {
2429                 switch (featid) {
2430                 case DCB_FEATCFG_ATTR_PG:
2431                         bp->dcbx_config_params.admin_ets_enable =
2432                                 flags & DCB_FEATCFG_ENABLE ? 1 : 0;
2433                         bp->dcbx_config_params.admin_ets_willing =
2434                                 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2435                         break;
2436                 case DCB_FEATCFG_ATTR_PFC:
2437                         bp->dcbx_config_params.admin_pfc_enable =
2438                                 flags & DCB_FEATCFG_ENABLE ? 1 : 0;
2439                         bp->dcbx_config_params.admin_pfc_willing =
2440                                 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2441                         break;
2442                 case DCB_FEATCFG_ATTR_APP:
2443                         /* ignore enable, always enabled */
2444                         bp->dcbx_config_params.admin_app_priority_willing =
2445                                 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2446                         break;
2447                 default:
2448                         BNX2X_ERR("Non valid feature-ID\n");
2449                         rval = 1;
2450                         break;
2451                 }
2452         } else {
2453                 DP(BNX2X_MSG_DCB, "dcbnl call not valid\n");
2454                 rval = 1;
2455         }
2456
2457         return rval;
2458 }
2459
2460 static int bnx2x_peer_appinfo(struct net_device *netdev,
2461                               struct dcb_peer_app_info *info, u16* app_count)
2462 {
2463         int i;
2464         struct bnx2x *bp = netdev_priv(netdev);
2465
2466         DP(BNX2X_MSG_DCB, "APP-INFO\n");
2467
2468         info->willing = (bp->dcbx_remote_flags & DCBX_APP_REM_WILLING) ?: 0;
2469         info->error = (bp->dcbx_remote_flags & DCBX_APP_RX_ERROR) ?: 0;
2470         *app_count = 0;
2471
2472         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++)
2473                 if (bp->dcbx_remote_feat.app.app_pri_tbl[i].appBitfield &
2474                     DCBX_APP_ENTRY_VALID)
2475                         (*app_count)++;
2476         return 0;
2477 }
2478
2479 static int bnx2x_peer_apptable(struct net_device *netdev,
2480                                struct dcb_app *table)
2481 {
2482         int i, j;
2483         struct bnx2x *bp = netdev_priv(netdev);
2484
2485         DP(BNX2X_MSG_DCB, "APP-TABLE\n");
2486
2487         for (i = 0, j = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
2488                 struct dcbx_app_priority_entry *ent =
2489                         &bp->dcbx_remote_feat.app.app_pri_tbl[i];
2490
2491                 if (ent->appBitfield & DCBX_APP_ENTRY_VALID) {
2492                         table[j].selector = bnx2x_dcbx_dcbnl_app_idtype(ent);
2493                         table[j].priority = bnx2x_dcbx_dcbnl_app_up(ent);
2494                         table[j++].protocol = ent->app_id;
2495                 }
2496         }
2497         return 0;
2498 }
2499
2500 static int bnx2x_cee_peer_getpg(struct net_device *netdev, struct cee_pg *pg)
2501 {
2502         int i;
2503         struct bnx2x *bp = netdev_priv(netdev);
2504
2505         pg->willing = (bp->dcbx_remote_flags & DCBX_ETS_REM_WILLING) ?: 0;
2506
2507         for (i = 0; i < CEE_DCBX_MAX_PGS; i++) {
2508                 pg->pg_bw[i] =
2509                         DCBX_PG_BW_GET(bp->dcbx_remote_feat.ets.pg_bw_tbl, i);
2510                 pg->prio_pg[i] =
2511                         DCBX_PRI_PG_GET(bp->dcbx_remote_feat.ets.pri_pg_tbl, i);
2512         }
2513         return 0;
2514 }
2515
2516 static int bnx2x_cee_peer_getpfc(struct net_device *netdev,
2517                                  struct cee_pfc *pfc)
2518 {
2519         struct bnx2x *bp = netdev_priv(netdev);
2520         pfc->tcs_supported = bp->dcbx_remote_feat.pfc.pfc_caps;
2521         pfc->pfc_en = bp->dcbx_remote_feat.pfc.pri_en_bitmap;
2522         return 0;
2523 }
2524
2525 const struct dcbnl_rtnl_ops bnx2x_dcbnl_ops = {
2526         .getstate               = bnx2x_dcbnl_get_state,
2527         .setstate               = bnx2x_dcbnl_set_state,
2528         .getpermhwaddr          = bnx2x_dcbnl_get_perm_hw_addr,
2529         .setpgtccfgtx           = bnx2x_dcbnl_set_pg_tccfg_tx,
2530         .setpgbwgcfgtx          = bnx2x_dcbnl_set_pg_bwgcfg_tx,
2531         .setpgtccfgrx           = bnx2x_dcbnl_set_pg_tccfg_rx,
2532         .setpgbwgcfgrx          = bnx2x_dcbnl_set_pg_bwgcfg_rx,
2533         .getpgtccfgtx           = bnx2x_dcbnl_get_pg_tccfg_tx,
2534         .getpgbwgcfgtx          = bnx2x_dcbnl_get_pg_bwgcfg_tx,
2535         .getpgtccfgrx           = bnx2x_dcbnl_get_pg_tccfg_rx,
2536         .getpgbwgcfgrx          = bnx2x_dcbnl_get_pg_bwgcfg_rx,
2537         .setpfccfg              = bnx2x_dcbnl_set_pfc_cfg,
2538         .getpfccfg              = bnx2x_dcbnl_get_pfc_cfg,
2539         .setall                 = bnx2x_dcbnl_set_all,
2540         .getcap                 = bnx2x_dcbnl_get_cap,
2541         .getnumtcs              = bnx2x_dcbnl_get_numtcs,
2542         .setnumtcs              = bnx2x_dcbnl_set_numtcs,
2543         .getpfcstate            = bnx2x_dcbnl_get_pfc_state,
2544         .setpfcstate            = bnx2x_dcbnl_set_pfc_state,
2545         .setapp                 = bnx2x_dcbnl_set_app_up,
2546         .getdcbx                = bnx2x_dcbnl_get_dcbx,
2547         .setdcbx                = bnx2x_dcbnl_set_dcbx,
2548         .getfeatcfg             = bnx2x_dcbnl_get_featcfg,
2549         .setfeatcfg             = bnx2x_dcbnl_set_featcfg,
2550         .peer_getappinfo        = bnx2x_peer_appinfo,
2551         .peer_getapptable       = bnx2x_peer_apptable,
2552         .cee_peer_getpg         = bnx2x_cee_peer_getpg,
2553         .cee_peer_getpfc        = bnx2x_cee_peer_getpfc,
2554 };
2555
2556 #endif /* BCM_DCBNL */