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

   1 /* bnx2x_dcb.c: Broadcom Everest network driver.
   2  *
   3  * Copyright 2009-2012 Broadcom Corporation
   4  *
   5  * Unless you and Broadcom execute a separate written software license
   6  * agreement governing use of this software, this software is licensed to you
   7  * under the terms of the GNU General Public License version 2, available
   8  * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
   9  *
  10  * Notwithstanding the above, under no circumstances may you combine this
  11  * software in any way with any other Broadcom software provided under a
  12  * license other than the GPL, without Broadcom's express prior written
  13  * consent.
  14  *
  15  * Maintained by: Eilon Greenstein <eilong@broadcom.com>
  16  * Written by: Dmitry Kravkov
  17  *
  18  */
  19
  20 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  21
  22 #include <linux/netdevice.h>
  23 #include <linux/types.h>
  24 #include <linux/errno.h>
  25 #include <linux/rtnetlink.h>
  26 #include <net/dcbnl.h>
  27
  28 #include "bnx2x.h"
  29 #include "bnx2x_cmn.h"
  30 #include "bnx2x_dcb.h"
  31
  32 /* forward declarations of dcbx related functions */
  33 static int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp);
  34 static void bnx2x_pfc_set_pfc(struct bnx2x *bp);
  35 static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp);
  36 static int bnx2x_dcbx_resume_hw_tx(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 lossy and COS1 to lossless
  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 = 0;
 107         /* RX COS1 */
 108         pfc_params.llfc_high_priority_classes = DCBX_PFC_PRI_PAUSE_MASK(bp);
 109
 110         /* BRB configuration */
 111         pfc_params.cos0_pauseable = false;
 112         pfc_params.cos1_pauseable = true;
 113
 114         bnx2x_acquire_phy_lock(bp);
 115         bp->link_params.feature_config_flags |= FEATURE_CONFIG_PFC_ENABLED;
 116         bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &pfc_params);
 117         bnx2x_release_phy_lock(bp);
 118 }
 119
 120 static void bnx2x_pfc_clear(struct bnx2x *bp)
 121 {
 122         struct bnx2x_nig_brb_pfc_port_params nig_params = {0};
 123         nig_params.pause_enable = 1;
 124 #ifdef BNX2X_SAFC
 125         if (bp->flags & SAFC_TX_FLAG) {
 126                 u32 high = 0, low = 0;
 127                 int i;
 128
 129                 for (i = 0; i < BNX2X_MAX_PRIORITY; i++) {
 130                         if (bp->pri_map[i] == 1)
 131                                 high |= (1 << i);
 132                         if (bp->pri_map[i] == 0)
 133                                 low |= (1 << i);
 134                 }
 135
 136                 nig_params.llfc_low_priority_classes = high;
 137                 nig_params.llfc_low_priority_classes = low;
 138
 139                 nig_params.pause_enable = 0;
 140                 nig_params.llfc_enable = 1;
 141                 nig_params.llfc_out_en = 1;
 142         }
 143 #endif /* BNX2X_SAFC */
 144         bnx2x_acquire_phy_lock(bp);
 145         bp->link_params.feature_config_flags &= ~FEATURE_CONFIG_PFC_ENABLED;
 146         bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &nig_params);
 147         bnx2x_release_phy_lock(bp);
 148 }
 149
 150 static void  bnx2x_dump_dcbx_drv_param(struct bnx2x *bp,
 151                                        struct dcbx_features *features,
 152                                        u32 error)
 153 {
 154         u8 i = 0;
 155         DP(NETIF_MSG_LINK, "local_mib.error %x\n", error);
 156
 157         /* PG */
 158         DP(NETIF_MSG_LINK,
 159            "local_mib.features.ets.enabled %x\n", features->ets.enabled);
 160         for (i = 0; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++)
 161                 DP(NETIF_MSG_LINK,
 162                    "local_mib.features.ets.pg_bw_tbl[%d] %d\n", i,
 163                    DCBX_PG_BW_GET(features->ets.pg_bw_tbl, i));
 164         for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++)
 165                 DP(NETIF_MSG_LINK,
 166                    "local_mib.features.ets.pri_pg_tbl[%d] %d\n", i,
 167                    DCBX_PRI_PG_GET(features->ets.pri_pg_tbl, i));
 168
 169         /* pfc */
 170         DP(NETIF_MSG_LINK, "dcbx_features.pfc.pri_en_bitmap %x\n",
 171                                         features->pfc.pri_en_bitmap);
 172         DP(NETIF_MSG_LINK, "dcbx_features.pfc.pfc_caps %x\n",
 173                                         features->pfc.pfc_caps);
 174         DP(NETIF_MSG_LINK, "dcbx_features.pfc.enabled %x\n",
 175                                         features->pfc.enabled);
 176
 177         DP(NETIF_MSG_LINK, "dcbx_features.app.default_pri %x\n",
 178                                         features->app.default_pri);
 179         DP(NETIF_MSG_LINK, "dcbx_features.app.tc_supported %x\n",
 180                                         features->app.tc_supported);
 181         DP(NETIF_MSG_LINK, "dcbx_features.app.enabled %x\n",
 182                                         features->app.enabled);
 183         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
 184                 DP(NETIF_MSG_LINK,
 185                    "dcbx_features.app.app_pri_tbl[%x].app_id %x\n",
 186                    i, features->app.app_pri_tbl[i].app_id);
 187                 DP(NETIF_MSG_LINK,
 188                    "dcbx_features.app.app_pri_tbl[%x].pri_bitmap %x\n",
 189                    i, features->app.app_pri_tbl[i].pri_bitmap);
 190                 DP(NETIF_MSG_LINK,
 191                    "dcbx_features.app.app_pri_tbl[%x].appBitfield %x\n",
 192                    i, features->app.app_pri_tbl[i].appBitfield);
 193         }
 194 }
 195
 196 static void bnx2x_dcbx_get_ap_priority(struct bnx2x *bp,
 197                                        u8 pri_bitmap,
 198                                        u8 llfc_traf_type)
 199 {
 200         u32 pri = MAX_PFC_PRIORITIES;
 201         u32 index = MAX_PFC_PRIORITIES - 1;
 202         u32 pri_mask;
 203         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
 204
 205         /* Choose the highest priority */
 206         while ((MAX_PFC_PRIORITIES == pri) && (0 != index)) {
 207                 pri_mask = 1 << index;
 208                 if (GET_FLAGS(pri_bitmap, pri_mask))
 209                         pri = index ;
 210                 index--;
 211         }
 212
 213         if (pri < MAX_PFC_PRIORITIES)
 214                 ttp[llfc_traf_type] = max_t(u32, ttp[llfc_traf_type], pri);
 215 }
 216
 217 static void bnx2x_dcbx_get_ap_feature(struct bnx2x *bp,
 218                                    struct dcbx_app_priority_feature *app,
 219                                    u32 error) {
 220         u8 index;
 221         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
 222
 223         if (GET_FLAGS(error, DCBX_LOCAL_APP_ERROR))
 224                 DP(NETIF_MSG_LINK, "DCBX_LOCAL_APP_ERROR\n");
 225
 226         if (GET_FLAGS(error, DCBX_LOCAL_APP_MISMATCH))
 227                 DP(NETIF_MSG_LINK, "DCBX_LOCAL_APP_MISMATCH\n");
 228
 229         if (app->enabled &&
 230             !GET_FLAGS(error, DCBX_LOCAL_APP_ERROR | DCBX_LOCAL_APP_MISMATCH)) {
 231
 232                 bp->dcbx_port_params.app.enabled = true;
 233
 234                 for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++)
 235                         ttp[index] = 0;
 236
 237                 if (app->default_pri < MAX_PFC_PRIORITIES)
 238                         ttp[LLFC_TRAFFIC_TYPE_NW] = app->default_pri;
 239
 240                 for (index = 0 ; index < DCBX_MAX_APP_PROTOCOL; index++) {
 241                         struct dcbx_app_priority_entry *entry =
 242                                                         app->app_pri_tbl;
 243
 244                         if (GET_FLAGS(entry[index].appBitfield,
 245                                      DCBX_APP_SF_ETH_TYPE) &&
 246                            ETH_TYPE_FCOE == entry[index].app_id)
 247                                 bnx2x_dcbx_get_ap_priority(bp,
 248                                                 entry[index].pri_bitmap,
 249                                                 LLFC_TRAFFIC_TYPE_FCOE);
 250
 251                         if (GET_FLAGS(entry[index].appBitfield,
 252                                      DCBX_APP_SF_PORT) &&
 253                            TCP_PORT_ISCSI == entry[index].app_id)
 254                                 bnx2x_dcbx_get_ap_priority(bp,
 255                                                 entry[index].pri_bitmap,
 256                                                 LLFC_TRAFFIC_TYPE_ISCSI);
 257                 }
 258         } else {
 259                 DP(NETIF_MSG_LINK, "DCBX_LOCAL_APP_DISABLED\n");
 260                 bp->dcbx_port_params.app.enabled = false;
 261                 for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++)
 262                         ttp[index] = INVALID_TRAFFIC_TYPE_PRIORITY;
 263         }
 264 }
 265
 266 static void bnx2x_dcbx_get_ets_feature(struct bnx2x *bp,
 267                                        struct dcbx_ets_feature *ets,
 268                                        u32 error) {
 269         int i = 0;
 270         u32 pg_pri_orginal_spread[DCBX_MAX_NUM_PG_BW_ENTRIES] = {0};
 271         struct pg_help_data pg_help_data;
 272         struct bnx2x_dcbx_cos_params *cos_params =
 273                         bp->dcbx_port_params.ets.cos_params;
 274
 275         memset(&pg_help_data, 0, sizeof(struct pg_help_data));
 276
 277
 278         if (GET_FLAGS(error, DCBX_LOCAL_ETS_ERROR))
 279                 DP(NETIF_MSG_LINK, "DCBX_LOCAL_ETS_ERROR\n");
 280
 281
 282         /* Clean up old settings of ets on COS */
 283         for (i = 0; i < ARRAY_SIZE(bp->dcbx_port_params.ets.cos_params) ; i++) {
 284                 cos_params[i].pauseable = false;
 285                 cos_params[i].strict = BNX2X_DCBX_STRICT_INVALID;
 286                 cos_params[i].bw_tbl = DCBX_INVALID_COS_BW;
 287                 cos_params[i].pri_bitmask = 0;
 288         }
 289
 290         if (bp->dcbx_port_params.app.enabled &&
 291            !GET_FLAGS(error, DCBX_LOCAL_ETS_ERROR) &&
 292            ets->enabled) {
 293                 DP(NETIF_MSG_LINK, "DCBX_LOCAL_ETS_ENABLE\n");
 294                 bp->dcbx_port_params.ets.enabled = true;
 295
 296                 bnx2x_dcbx_get_ets_pri_pg_tbl(bp,
 297                                               pg_pri_orginal_spread,
 298                                               ets->pri_pg_tbl);
 299
 300                 bnx2x_dcbx_get_num_pg_traf_type(bp,
 301                                                 pg_pri_orginal_spread,
 302                                                 &pg_help_data);
 303
 304                 bnx2x_dcbx_fill_cos_params(bp, &pg_help_data,
 305                                            ets, pg_pri_orginal_spread);
 306
 307         } else {
 308                 DP(NETIF_MSG_LINK, "DCBX_LOCAL_ETS_DISABLED\n");
 309                 bp->dcbx_port_params.ets.enabled = false;
 310                 ets->pri_pg_tbl[0] = 0;
 311
 312                 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES ; i++)
 313                         DCBX_PG_BW_SET(ets->pg_bw_tbl, i, 1);
 314         }
 315 }
 316
 317 static void  bnx2x_dcbx_get_pfc_feature(struct bnx2x *bp,
 318                                         struct dcbx_pfc_feature *pfc, u32 error)
 319 {
 320
 321         if (GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR))
 322                 DP(NETIF_MSG_LINK, "DCBX_LOCAL_PFC_ERROR\n");
 323
 324         if (bp->dcbx_port_params.app.enabled &&
 325            !GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR | DCBX_LOCAL_PFC_MISMATCH) &&
 326            pfc->enabled) {
 327                 bp->dcbx_port_params.pfc.enabled = true;
 328                 bp->dcbx_port_params.pfc.priority_non_pauseable_mask =
 329                         ~(pfc->pri_en_bitmap);
 330         } else {
 331                 DP(NETIF_MSG_LINK, "DCBX_LOCAL_PFC_DISABLED\n");
 332                 bp->dcbx_port_params.pfc.enabled = false;
 333                 bp->dcbx_port_params.pfc.priority_non_pauseable_mask = 0;
 334         }
 335 }
 336
 337 /* maps unmapped priorities to to the same COS as L2 */
 338 static void bnx2x_dcbx_map_nw(struct bnx2x *bp)
 339 {
 340         int i;
 341         u32 unmapped = (1 << MAX_PFC_PRIORITIES) - 1; /* all ones */
 342         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
 343         u32 nw_prio = 1 << ttp[LLFC_TRAFFIC_TYPE_NW];
 344         struct bnx2x_dcbx_cos_params *cos_params =
 345                         bp->dcbx_port_params.ets.cos_params;
 346
 347         /* get unmapped priorities by clearing mapped bits */
 348         for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++)
 349                 unmapped &= ~(1 << ttp[i]);
 350
 351         /* find cos for nw prio and extend it with unmapped */
 352         for (i = 0; i < ARRAY_SIZE(bp->dcbx_port_params.ets.cos_params); i++) {
 353                 if (cos_params[i].pri_bitmask & nw_prio) {
 354                         /* extend the bitmask with unmapped */
 355                         DP(NETIF_MSG_LINK,
 356                            "cos %d extended with 0x%08x\n", i, unmapped);
 357                         cos_params[i].pri_bitmask |= unmapped;
 358                         break;
 359                 }
 360         }
 361 }
 362
 363 static void bnx2x_get_dcbx_drv_param(struct bnx2x *bp,
 364                                      struct dcbx_features *features,
 365                                      u32 error)
 366 {
 367         bnx2x_dcbx_get_ap_feature(bp, &features->app, error);
 368
 369         bnx2x_dcbx_get_pfc_feature(bp, &features->pfc, error);
 370
 371         bnx2x_dcbx_get_ets_feature(bp, &features->ets, error);
 372
 373         bnx2x_dcbx_map_nw(bp);
 374 }
 375
 376 #define DCBX_LOCAL_MIB_MAX_TRY_READ             (100)
 377 static int bnx2x_dcbx_read_mib(struct bnx2x *bp,
 378                                u32 *base_mib_addr,
 379                                u32 offset,
 380                                int read_mib_type)
 381 {
 382         int max_try_read = 0;
 383         u32 mib_size, prefix_seq_num, suffix_seq_num;
 384         struct lldp_remote_mib *remote_mib ;
 385         struct lldp_local_mib  *local_mib;
 386
 387
 388         switch (read_mib_type) {
 389         case DCBX_READ_LOCAL_MIB:
 390                 mib_size = sizeof(struct lldp_local_mib);
 391                 break;
 392         case DCBX_READ_REMOTE_MIB:
 393                 mib_size = sizeof(struct lldp_remote_mib);
 394                 break;
 395         default:
 396                 return 1; /*error*/
 397         }
 398
 399         offset += BP_PORT(bp) * mib_size;
 400
 401         do {
 402                 bnx2x_read_data(bp, base_mib_addr, offset, mib_size);
 403
 404                 max_try_read++;
 405
 406                 switch (read_mib_type) {
 407                 case DCBX_READ_LOCAL_MIB:
 408                         local_mib = (struct lldp_local_mib *) base_mib_addr;
 409                         prefix_seq_num = local_mib->prefix_seq_num;
 410                         suffix_seq_num = local_mib->suffix_seq_num;
 411                         break;
 412                 case DCBX_READ_REMOTE_MIB:
 413                         remote_mib = (struct lldp_remote_mib *) base_mib_addr;
 414                         prefix_seq_num = remote_mib->prefix_seq_num;
 415                         suffix_seq_num = remote_mib->suffix_seq_num;
 416                         break;
 417                 default:
 418                         return 1; /*error*/
 419                 }
 420         } while ((prefix_seq_num != suffix_seq_num) &&
 421                (max_try_read < DCBX_LOCAL_MIB_MAX_TRY_READ));
 422
 423         if (max_try_read >= DCBX_LOCAL_MIB_MAX_TRY_READ) {
 424                 BNX2X_ERR("MIB could not be read\n");
 425                 return 1;
 426         }
 427
 428         return 0;
 429 }
 430
 431 static void bnx2x_pfc_set_pfc(struct bnx2x *bp)
 432 {
 433         if (bp->dcbx_port_params.pfc.enabled &&
 434             !(bp->dcbx_error & DCBX_REMOTE_MIB_ERROR))
 435                 /*
 436                  * 1. Fills up common PFC structures if required
 437                  * 2. Configure NIG, MAC and BRB via the elink
 438                  */
 439                 bnx2x_pfc_set(bp);
 440         else
 441                 bnx2x_pfc_clear(bp);
 442 }
 443
 444 static int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp)
 445 {
 446         struct bnx2x_func_state_params func_params = {0};
 447
 448         func_params.f_obj = &bp->func_obj;
 449         func_params.cmd = BNX2X_F_CMD_TX_STOP;
 450
 451         DP(NETIF_MSG_LINK, "STOP TRAFFIC\n");
 452         return bnx2x_func_state_change(bp, &func_params);
 453 }
 454
 455 static int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp)
 456 {
 457         struct bnx2x_func_state_params func_params = {0};
 458         struct bnx2x_func_tx_start_params *tx_params =
 459                 &func_params.params.tx_start;
 460
 461         func_params.f_obj = &bp->func_obj;
 462         func_params.cmd = BNX2X_F_CMD_TX_START;
 463
 464         bnx2x_dcbx_fw_struct(bp, tx_params);
 465
 466         DP(NETIF_MSG_LINK, "START TRAFFIC\n");
 467         return bnx2x_func_state_change(bp, &func_params);
 468 }
 469
 470 static void bnx2x_dcbx_2cos_limit_update_ets_config(struct bnx2x *bp)
 471 {
 472         struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets);
 473         int rc = 0;
 474
 475         if (ets->num_of_cos == 0 || ets->num_of_cos > DCBX_COS_MAX_NUM_E2) {
 476                 BNX2X_ERR("Illegal number of COSes %d\n", ets->num_of_cos);
 477                 return;
 478         }
 479
 480         /* valid COS entries */
 481         if (ets->num_of_cos == 1)   /* no ETS */
 482                 return;
 483
 484         /* sanity */
 485         if (((BNX2X_DCBX_STRICT_INVALID == ets->cos_params[0].strict) &&
 486              (DCBX_INVALID_COS_BW == ets->cos_params[0].bw_tbl)) ||
 487             ((BNX2X_DCBX_STRICT_INVALID == ets->cos_params[1].strict) &&
 488              (DCBX_INVALID_COS_BW == ets->cos_params[1].bw_tbl))) {
 489                 BNX2X_ERR("all COS should have at least bw_limit or strict"
 490                             "ets->cos_params[0].strict= %x"
 491                             "ets->cos_params[0].bw_tbl= %x"
 492                             "ets->cos_params[1].strict= %x"
 493                             "ets->cos_params[1].bw_tbl= %x",
 494                           ets->cos_params[0].strict,
 495                           ets->cos_params[0].bw_tbl,
 496                           ets->cos_params[1].strict,
 497                           ets->cos_params[1].bw_tbl);
 498                 return;
 499         }
 500         /* If we join a group and there is bw_tbl and strict then bw rules */
 501         if ((DCBX_INVALID_COS_BW != ets->cos_params[0].bw_tbl) &&
 502             (DCBX_INVALID_COS_BW != ets->cos_params[1].bw_tbl)) {
 503                 u32 bw_tbl_0 = ets->cos_params[0].bw_tbl;
 504                 u32 bw_tbl_1 = ets->cos_params[1].bw_tbl;
 505                 /* Do not allow 0-100 configuration
 506                  * since PBF does not support it
 507                  * force 1-99 instead
 508                  */
 509                 if (bw_tbl_0 == 0) {
 510                         bw_tbl_0 = 1;
 511                         bw_tbl_1 = 99;
 512                 } else if (bw_tbl_1 == 0) {
 513                         bw_tbl_1 = 1;
 514                         bw_tbl_0 = 99;
 515                 }
 516
 517                 bnx2x_ets_bw_limit(&bp->link_params, bw_tbl_0, bw_tbl_1);
 518         } else {
 519                 if (ets->cos_params[0].strict == BNX2X_DCBX_STRICT_COS_HIGHEST)
 520                         rc = bnx2x_ets_strict(&bp->link_params, 0);
 521                 else if (ets->cos_params[1].strict
 522                                         == BNX2X_DCBX_STRICT_COS_HIGHEST)
 523                         rc = bnx2x_ets_strict(&bp->link_params, 1);
 524                 if (rc)
 525                         BNX2X_ERR("update_ets_params failed\n");
 526         }
 527 }
 528
 529 /*
 530  * In E3B0 the configuration may have more than 2 COS.
 531  */
 532 void bnx2x_dcbx_update_ets_config(struct bnx2x *bp)
 533 {
 534         struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets);
 535         struct bnx2x_ets_params ets_params = { 0 };
 536         u8 i;
 537
 538         ets_params.num_of_cos = ets->num_of_cos;
 539
 540         for (i = 0; i < ets->num_of_cos; i++) {
 541                 /* COS is SP */
 542                 if (ets->cos_params[i].strict != BNX2X_DCBX_STRICT_INVALID) {
 543                         if (ets->cos_params[i].bw_tbl != DCBX_INVALID_COS_BW) {
 544                                 BNX2X_ERR("COS can't be not BW and not SP\n");
 545                                 return;
 546                         }
 547
 548                         ets_params.cos[i].state = bnx2x_cos_state_strict;
 549                         ets_params.cos[i].params.sp_params.pri =
 550                                                 ets->cos_params[i].strict;
 551                 } else { /* COS is BW */
 552                         if (ets->cos_params[i].bw_tbl == DCBX_INVALID_COS_BW) {
 553                                 BNX2X_ERR("COS can't be not BW and not SP\n");
 554                                 return;
 555                         }
 556                         ets_params.cos[i].state = bnx2x_cos_state_bw;
 557                         ets_params.cos[i].params.bw_params.bw =
 558                                                 (u8)ets->cos_params[i].bw_tbl;
 559                 }
 560         }
 561
 562         /* Configure the ETS in HW */
 563         if (bnx2x_ets_e3b0_config(&bp->link_params, &bp->link_vars,
 564                                   &ets_params)) {
 565                 BNX2X_ERR("bnx2x_ets_e3b0_config failed\n");
 566                 bnx2x_ets_disabled(&bp->link_params, &bp->link_vars);
 567         }
 568 }
 569
 570 static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp)
 571 {
 572         bnx2x_ets_disabled(&bp->link_params, &bp->link_vars);
 573
 574         if (!bp->dcbx_port_params.ets.enabled ||
 575             (bp->dcbx_error & DCBX_REMOTE_MIB_ERROR))
 576                 return;
 577
 578         if (CHIP_IS_E3B0(bp))
 579                 bnx2x_dcbx_update_ets_config(bp);
 580         else
 581                 bnx2x_dcbx_2cos_limit_update_ets_config(bp);
 582 }
 583
 584 #ifdef BCM_DCBNL
 585 static int bnx2x_dcbx_read_shmem_remote_mib(struct bnx2x *bp)
 586 {
 587         struct lldp_remote_mib remote_mib = {0};
 588         u32 dcbx_remote_mib_offset = SHMEM2_RD(bp, dcbx_remote_mib_offset);
 589         int rc;
 590
 591         DP(NETIF_MSG_LINK, "dcbx_remote_mib_offset 0x%x\n",
 592            dcbx_remote_mib_offset);
 593
 594         if (SHMEM_DCBX_REMOTE_MIB_NONE == dcbx_remote_mib_offset) {
 595                 BNX2X_ERR("FW doesn't support dcbx_remote_mib_offset\n");
 596                 return -EINVAL;
 597         }
 598
 599         rc = bnx2x_dcbx_read_mib(bp, (u32 *)&remote_mib, dcbx_remote_mib_offset,
 600                                  DCBX_READ_REMOTE_MIB);
 601
 602         if (rc) {
 603                 BNX2X_ERR("Faild to read remote mib from FW\n");
 604                 return rc;
 605         }
 606
 607         /* save features and flags */
 608         bp->dcbx_remote_feat = remote_mib.features;
 609         bp->dcbx_remote_flags = remote_mib.flags;
 610         return 0;
 611 }
 612 #endif
 613
 614 static int bnx2x_dcbx_read_shmem_neg_results(struct bnx2x *bp)
 615 {
 616         struct lldp_local_mib local_mib = {0};
 617         u32 dcbx_neg_res_offset = SHMEM2_RD(bp, dcbx_neg_res_offset);
 618         int rc;
 619
 620         DP(NETIF_MSG_LINK, "dcbx_neg_res_offset 0x%x\n", dcbx_neg_res_offset);
 621
 622         if (SHMEM_DCBX_NEG_RES_NONE == dcbx_neg_res_offset) {
 623                 BNX2X_ERR("FW doesn't support dcbx_neg_res_offset\n");
 624                 return -EINVAL;
 625         }
 626
 627         rc = bnx2x_dcbx_read_mib(bp, (u32 *)&local_mib, dcbx_neg_res_offset,
 628                                  DCBX_READ_LOCAL_MIB);
 629
 630         if (rc) {
 631                 BNX2X_ERR("Faild to read local mib from FW\n");
 632                 return rc;
 633         }
 634
 635         /* save features and error */
 636         bp->dcbx_local_feat = local_mib.features;
 637         bp->dcbx_error = local_mib.error;
 638         return 0;
 639 }
 640
 641
 642 #ifdef BCM_DCBNL
 643 static inline
 644 u8 bnx2x_dcbx_dcbnl_app_up(struct dcbx_app_priority_entry *ent)
 645 {
 646         u8 pri;
 647
 648         /* Choose the highest priority */
 649         for (pri = MAX_PFC_PRIORITIES - 1; pri > 0; pri--)
 650                 if (ent->pri_bitmap & (1 << pri))
 651                         break;
 652         return pri;
 653 }
 654
 655 static inline
 656 u8 bnx2x_dcbx_dcbnl_app_idtype(struct dcbx_app_priority_entry *ent)
 657 {
 658         return ((ent->appBitfield & DCBX_APP_ENTRY_SF_MASK) ==
 659                 DCBX_APP_SF_PORT) ? DCB_APP_IDTYPE_PORTNUM :
 660                 DCB_APP_IDTYPE_ETHTYPE;
 661 }
 662
 663 int bnx2x_dcbnl_update_applist(struct bnx2x *bp, bool delall)
 664 {
 665         int i, err = 0;
 666
 667         for (i = 0; i < DCBX_MAX_APP_PROTOCOL && err == 0; i++) {
 668                 struct dcbx_app_priority_entry *ent =
 669                         &bp->dcbx_local_feat.app.app_pri_tbl[i];
 670
 671                 if (ent->appBitfield & DCBX_APP_ENTRY_VALID) {
 672                         u8 up = bnx2x_dcbx_dcbnl_app_up(ent);
 673
 674                         /* avoid invalid user-priority */
 675                         if (up) {
 676                                 struct dcb_app app;
 677                                 app.selector = bnx2x_dcbx_dcbnl_app_idtype(ent);
 678                                 app.protocol = ent->app_id;
 679                                 app.priority = delall ? 0 : up;
 680                                 err = dcb_setapp(bp->dev, &app);
 681                         }
 682                 }
 683         }
 684         return err;
 685 }
 686 #endif
 687
 688 static inline void bnx2x_dcbx_update_tc_mapping(struct bnx2x *bp)
 689 {
 690         u8 prio, cos;
 691         for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++) {
 692                 for (prio = 0; prio < BNX2X_MAX_PRIORITY; prio++) {
 693                         if (bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask
 694                             & (1 << prio)) {
 695                                 bp->prio_to_cos[prio] = cos;
 696                                 DP(NETIF_MSG_LINK,
 697                                    "tx_mapping %d --> %d\n", prio, cos);
 698                         }
 699                 }
 700         }
 701
 702         /* setup tc must be called under rtnl lock, but we can't take it here
 703          * as we are handling an attetntion on a work queue which must be
 704          * flushed at some rtnl-locked contexts (e.g. if down)
 705          */
 706         if (!test_and_set_bit(BNX2X_SP_RTNL_SETUP_TC, &bp->sp_rtnl_state))
 707                 schedule_delayed_work(&bp->sp_rtnl_task, 0);
 708 }
 709
 710 void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state)
 711 {
 712         switch (state) {
 713         case BNX2X_DCBX_STATE_NEG_RECEIVED:
 714                 {
 715                         DP(NETIF_MSG_LINK, "BNX2X_DCBX_STATE_NEG_RECEIVED\n");
 716 #ifdef BCM_DCBNL
 717                         /**
 718                          * Delete app tlvs from dcbnl before reading new
 719                          * negotiation results
 720                          */
 721                         bnx2x_dcbnl_update_applist(bp, true);
 722
 723                         /* Read rmeote mib if dcbx is in the FW */
 724                         if (bnx2x_dcbx_read_shmem_remote_mib(bp))
 725                                 return;
 726 #endif
 727                         /* Read neg results if dcbx is in the FW */
 728                         if (bnx2x_dcbx_read_shmem_neg_results(bp))
 729                                 return;
 730
 731                         bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat,
 732                                                   bp->dcbx_error);
 733
 734                         bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat,
 735                                                  bp->dcbx_error);
 736
 737                         /* mark DCBX result for PMF migration */
 738                         bnx2x_update_drv_flags(bp, DRV_FLAGS_DCB_CONFIGURED, 1);
 739 #ifdef BCM_DCBNL
 740                         /*
 741                          * Add new app tlvs to dcbnl
 742                          */
 743                         bnx2x_dcbnl_update_applist(bp, false);
 744 #endif
 745                         /*
 746                          * reconfigure the netdevice with the results of the new
 747                          * dcbx negotiation.
 748                          */
 749                         bnx2x_dcbx_update_tc_mapping(bp);
 750
 751                         /*
 752                          * allow other funtions to update their netdevices
 753                          * accordingly
 754                          */
 755                         if (IS_MF(bp))
 756                                 bnx2x_link_sync_notify(bp);
 757
 758                         bnx2x_dcbx_stop_hw_tx(bp);
 759
 760                         return;
 761                 }
 762         case BNX2X_DCBX_STATE_TX_PAUSED:
 763                 DP(NETIF_MSG_LINK, "BNX2X_DCBX_STATE_TX_PAUSED\n");
 764                 bnx2x_pfc_set_pfc(bp);
 765
 766                 bnx2x_dcbx_update_ets_params(bp);
 767                 bnx2x_dcbx_resume_hw_tx(bp);
 768
 769                 return;
 770         case BNX2X_DCBX_STATE_TX_RELEASED:
 771                 DP(NETIF_MSG_LINK, "BNX2X_DCBX_STATE_TX_RELEASED\n");
 772                 bnx2x_fw_command(bp, DRV_MSG_CODE_DCBX_PMF_DRV_OK, 0);
 773 #ifdef BCM_DCBNL
 774                 /*
 775                  * Send a notification for the new negotiated parameters
 776                  */
 777                 dcbnl_cee_notify(bp->dev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0);
 778 #endif
 779                 return;
 780         default:
 781                 BNX2X_ERR("Unknown DCBX_STATE\n");
 782         }
 783 }
 784
 785 #define LLDP_ADMIN_MIB_OFFSET(bp)       (PORT_MAX*sizeof(struct lldp_params) + \
 786                                       BP_PORT(bp)*sizeof(struct lldp_admin_mib))
 787
 788 static void bnx2x_dcbx_admin_mib_updated_params(struct bnx2x *bp,
 789                                 u32 dcbx_lldp_params_offset)
 790 {
 791         struct lldp_admin_mib admin_mib;
 792         u32 i, other_traf_type = PREDEFINED_APP_IDX_MAX, traf_type = 0;
 793         u32 offset = dcbx_lldp_params_offset + LLDP_ADMIN_MIB_OFFSET(bp);
 794
 795         /*shortcuts*/
 796         struct dcbx_features *af = &admin_mib.features;
 797         struct bnx2x_config_dcbx_params *dp = &bp->dcbx_config_params;
 798
 799         memset(&admin_mib, 0, sizeof(struct lldp_admin_mib));
 800
 801         /* Read the data first */
 802         bnx2x_read_data(bp, (u32 *)&admin_mib, offset,
 803                         sizeof(struct lldp_admin_mib));
 804
 805         if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON)
 806                 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED);
 807         else
 808                 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED);
 809
 810         if (dp->overwrite_settings == BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE) {
 811
 812                 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_CEE_VERSION_MASK);
 813                 admin_mib.ver_cfg_flags |=
 814                         (dp->admin_dcbx_version << DCBX_CEE_VERSION_SHIFT) &
 815                          DCBX_CEE_VERSION_MASK;
 816
 817                 af->ets.enabled = (u8)dp->admin_ets_enable;
 818
 819                 af->pfc.enabled = (u8)dp->admin_pfc_enable;
 820
 821                 /* FOR IEEE dp->admin_tc_supported_tx_enable */
 822                 if (dp->admin_ets_configuration_tx_enable)
 823                         SET_FLAGS(admin_mib.ver_cfg_flags,
 824                                   DCBX_ETS_CONFIG_TX_ENABLED);
 825                 else
 826                         RESET_FLAGS(admin_mib.ver_cfg_flags,
 827                                     DCBX_ETS_CONFIG_TX_ENABLED);
 828                 /* For IEEE admin_ets_recommendation_tx_enable */
 829                 if (dp->admin_pfc_tx_enable)
 830                         SET_FLAGS(admin_mib.ver_cfg_flags,
 831                                   DCBX_PFC_CONFIG_TX_ENABLED);
 832                 else
 833                         RESET_FLAGS(admin_mib.ver_cfg_flags,
 834                                   DCBX_PFC_CONFIG_TX_ENABLED);
 835
 836                 if (dp->admin_application_priority_tx_enable)
 837                         SET_FLAGS(admin_mib.ver_cfg_flags,
 838                                   DCBX_APP_CONFIG_TX_ENABLED);
 839                 else
 840                         RESET_FLAGS(admin_mib.ver_cfg_flags,
 841                                   DCBX_APP_CONFIG_TX_ENABLED);
 842
 843                 if (dp->admin_ets_willing)
 844                         SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING);
 845                 else
 846                         RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING);
 847                 /* For IEEE admin_ets_reco_valid */
 848                 if (dp->admin_pfc_willing)
 849                         SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING);
 850                 else
 851                         RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING);
 852
 853                 if (dp->admin_app_priority_willing)
 854                         SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING);
 855                 else
 856                         RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING);
 857
 858                 for (i = 0 ; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++) {
 859                         DCBX_PG_BW_SET(af->ets.pg_bw_tbl, i,
 860                                 (u8)dp->admin_configuration_bw_precentage[i]);
 861
 862                         DP(NETIF_MSG_LINK, "pg_bw_tbl[%d] = %02x\n",
 863                            i, DCBX_PG_BW_GET(af->ets.pg_bw_tbl, i));
 864                 }
 865
 866                 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) {
 867                         DCBX_PRI_PG_SET(af->ets.pri_pg_tbl, i,
 868                                         (u8)dp->admin_configuration_ets_pg[i]);
 869
 870                         DP(NETIF_MSG_LINK, "pri_pg_tbl[%d] = %02x\n",
 871                            i, DCBX_PRI_PG_GET(af->ets.pri_pg_tbl, i));
 872                 }
 873
 874                 /*For IEEE admin_recommendation_bw_precentage
 875                  *For IEEE admin_recommendation_ets_pg */
 876                 af->pfc.pri_en_bitmap = (u8)dp->admin_pfc_bitmap;
 877                 for (i = 0; i < DCBX_CONFIG_MAX_APP_PROTOCOL; i++) {
 878                         if (dp->admin_priority_app_table[i].valid) {
 879                                 struct bnx2x_admin_priority_app_table *table =
 880                                         dp->admin_priority_app_table;
 881                                 if ((ETH_TYPE_FCOE == table[i].app_id) &&
 882                                    (TRAFFIC_TYPE_ETH == table[i].traffic_type))
 883                                         traf_type = FCOE_APP_IDX;
 884                                 else if ((TCP_PORT_ISCSI == table[i].app_id) &&
 885                                    (TRAFFIC_TYPE_PORT == table[i].traffic_type))
 886                                         traf_type = ISCSI_APP_IDX;
 887                                 else
 888                                         traf_type = other_traf_type++;
 889
 890                                 af->app.app_pri_tbl[traf_type].app_id =
 891                                         table[i].app_id;
 892
 893                                 af->app.app_pri_tbl[traf_type].pri_bitmap =
 894                                         (u8)(1 << table[i].priority);
 895
 896                                 af->app.app_pri_tbl[traf_type].appBitfield =
 897                                     (DCBX_APP_ENTRY_VALID);
 898
 899                                 af->app.app_pri_tbl[traf_type].appBitfield |=
 900                                    (TRAFFIC_TYPE_ETH == table[i].traffic_type) ?
 901                                         DCBX_APP_SF_ETH_TYPE : DCBX_APP_SF_PORT;
 902                         }
 903                 }
 904
 905                 af->app.default_pri = (u8)dp->admin_default_priority;
 906
 907         }
 908
 909         /* Write the data. */
 910         bnx2x_write_data(bp, (u32 *)&admin_mib, offset,
 911                          sizeof(struct lldp_admin_mib));
 912
 913 }
 914
 915 void bnx2x_dcbx_set_state(struct bnx2x *bp, bool dcb_on, u32 dcbx_enabled)
 916 {
 917         if (!CHIP_IS_E1x(bp)) {
 918                 bp->dcb_state = dcb_on;
 919                 bp->dcbx_enabled = dcbx_enabled;
 920         } else {
 921                 bp->dcb_state = false;
 922                 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_INVALID;
 923         }
 924         DP(NETIF_MSG_LINK, "DCB state [%s:%s]\n",
 925            dcb_on ? "ON" : "OFF",
 926            dcbx_enabled == BNX2X_DCBX_ENABLED_OFF ? "user-mode" :
 927            dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF ? "on-chip static" :
 928            dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON ?
 929            "on-chip with negotiation" : "invalid");
 930 }
 931
 932 void bnx2x_dcbx_init_params(struct bnx2x *bp)
 933 {
 934         bp->dcbx_config_params.admin_dcbx_version = 0x0; /* 0 - CEE; 1 - IEEE */
 935         bp->dcbx_config_params.admin_ets_willing = 1;
 936         bp->dcbx_config_params.admin_pfc_willing = 1;
 937         bp->dcbx_config_params.overwrite_settings = 1;
 938         bp->dcbx_config_params.admin_ets_enable = 1;
 939         bp->dcbx_config_params.admin_pfc_enable = 1;
 940         bp->dcbx_config_params.admin_tc_supported_tx_enable = 1;
 941         bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
 942         bp->dcbx_config_params.admin_pfc_tx_enable = 1;
 943         bp->dcbx_config_params.admin_application_priority_tx_enable = 1;
 944         bp->dcbx_config_params.admin_ets_reco_valid = 1;
 945         bp->dcbx_config_params.admin_app_priority_willing = 1;
 946         bp->dcbx_config_params.admin_configuration_bw_precentage[0] = 00;
 947         bp->dcbx_config_params.admin_configuration_bw_precentage[1] = 50;
 948         bp->dcbx_config_params.admin_configuration_bw_precentage[2] = 50;
 949         bp->dcbx_config_params.admin_configuration_bw_precentage[3] = 0;
 950         bp->dcbx_config_params.admin_configuration_bw_precentage[4] = 0;
 951         bp->dcbx_config_params.admin_configuration_bw_precentage[5] = 0;
 952         bp->dcbx_config_params.admin_configuration_bw_precentage[6] = 0;
 953         bp->dcbx_config_params.admin_configuration_bw_precentage[7] = 0;
 954         bp->dcbx_config_params.admin_configuration_ets_pg[0] = 1;
 955         bp->dcbx_config_params.admin_configuration_ets_pg[1] = 0;
 956         bp->dcbx_config_params.admin_configuration_ets_pg[2] = 0;
 957         bp->dcbx_config_params.admin_configuration_ets_pg[3] = 2;
 958         bp->dcbx_config_params.admin_configuration_ets_pg[4] = 0;
 959         bp->dcbx_config_params.admin_configuration_ets_pg[5] = 0;
 960         bp->dcbx_config_params.admin_configuration_ets_pg[6] = 0;
 961         bp->dcbx_config_params.admin_configuration_ets_pg[7] = 0;
 962         bp->dcbx_config_params.admin_recommendation_bw_precentage[0] = 0;
 963         bp->dcbx_config_params.admin_recommendation_bw_precentage[1] = 1;
 964         bp->dcbx_config_params.admin_recommendation_bw_precentage[2] = 2;
 965         bp->dcbx_config_params.admin_recommendation_bw_precentage[3] = 0;
 966         bp->dcbx_config_params.admin_recommendation_bw_precentage[4] = 7;
 967         bp->dcbx_config_params.admin_recommendation_bw_precentage[5] = 5;
 968         bp->dcbx_config_params.admin_recommendation_bw_precentage[6] = 6;
 969         bp->dcbx_config_params.admin_recommendation_bw_precentage[7] = 7;
 970         bp->dcbx_config_params.admin_recommendation_ets_pg[0] = 0;
 971         bp->dcbx_config_params.admin_recommendation_ets_pg[1] = 1;
 972         bp->dcbx_config_params.admin_recommendation_ets_pg[2] = 2;
 973         bp->dcbx_config_params.admin_recommendation_ets_pg[3] = 3;
 974         bp->dcbx_config_params.admin_recommendation_ets_pg[4] = 4;
 975         bp->dcbx_config_params.admin_recommendation_ets_pg[5] = 5;
 976         bp->dcbx_config_params.admin_recommendation_ets_pg[6] = 6;
 977         bp->dcbx_config_params.admin_recommendation_ets_pg[7] = 7;
 978         bp->dcbx_config_params.admin_pfc_bitmap = 0x8; /* FCoE(3) enable */
 979         bp->dcbx_config_params.admin_priority_app_table[0].valid = 1;
 980         bp->dcbx_config_params.admin_priority_app_table[1].valid = 1;
 981         bp->dcbx_config_params.admin_priority_app_table[2].valid = 0;
 982         bp->dcbx_config_params.admin_priority_app_table[3].valid = 0;
 983         bp->dcbx_config_params.admin_priority_app_table[0].priority = 3;
 984         bp->dcbx_config_params.admin_priority_app_table[1].priority = 0;
 985         bp->dcbx_config_params.admin_priority_app_table[2].priority = 0;
 986         bp->dcbx_config_params.admin_priority_app_table[3].priority = 0;
 987         bp->dcbx_config_params.admin_priority_app_table[0].traffic_type = 0;
 988         bp->dcbx_config_params.admin_priority_app_table[1].traffic_type = 1;
 989         bp->dcbx_config_params.admin_priority_app_table[2].traffic_type = 0;
 990         bp->dcbx_config_params.admin_priority_app_table[3].traffic_type = 0;
 991         bp->dcbx_config_params.admin_priority_app_table[0].app_id = 0x8906;
 992         bp->dcbx_config_params.admin_priority_app_table[1].app_id = 3260;
 993         bp->dcbx_config_params.admin_priority_app_table[2].app_id = 0;
 994         bp->dcbx_config_params.admin_priority_app_table[3].app_id = 0;
 995         bp->dcbx_config_params.admin_default_priority =
 996                 bp->dcbx_config_params.admin_priority_app_table[1].priority;
 997 }
 998
 999 void bnx2x_dcbx_init(struct bnx2x *bp)
1000 {
1001         u32 dcbx_lldp_params_offset = SHMEM_LLDP_DCBX_PARAMS_NONE;
1002
1003         if (bp->dcbx_enabled <= 0)
1004                 return;
1005
1006         /* validate:
1007          * chip of good for dcbx version,
1008          * dcb is wanted
1009          * the function is pmf
1010          * shmem2 contains DCBX support fields
1011          */
1012         DP(NETIF_MSG_LINK, "dcb_state %d bp->port.pmf %d\n",
1013            bp->dcb_state, bp->port.pmf);
1014
1015         if (bp->dcb_state == BNX2X_DCB_STATE_ON && bp->port.pmf &&
1016             SHMEM2_HAS(bp, dcbx_lldp_params_offset)) {
1017                 dcbx_lldp_params_offset =
1018                         SHMEM2_RD(bp, dcbx_lldp_params_offset);
1019
1020                 DP(NETIF_MSG_LINK, "dcbx_lldp_params_offset 0x%x\n",
1021                    dcbx_lldp_params_offset);
1022
1023                 bnx2x_update_drv_flags(bp, DRV_FLAGS_DCB_CONFIGURED, 0);
1024
1025                 if (SHMEM_LLDP_DCBX_PARAMS_NONE != dcbx_lldp_params_offset) {
1026                         bnx2x_dcbx_admin_mib_updated_params(bp,
1027                                 dcbx_lldp_params_offset);
1028
1029                         /* Let HW start negotiation */
1030                         bnx2x_fw_command(bp,
1031                                          DRV_MSG_CODE_DCBX_ADMIN_PMF_MSG, 0);
1032                 }
1033         }
1034 }
1035 static void
1036 bnx2x_dcbx_print_cos_params(struct bnx2x *bp,
1037                             struct bnx2x_func_tx_start_params *pfc_fw_cfg)
1038 {
1039         u8 pri = 0;
1040         u8 cos = 0;
1041
1042         DP(NETIF_MSG_LINK,
1043            "pfc_fw_cfg->dcb_version %x\n", pfc_fw_cfg->dcb_version);
1044         DP(NETIF_MSG_LINK,
1045            "pdev->params.dcbx_port_params.pfc."
1046            "priority_non_pauseable_mask %x\n",
1047            bp->dcbx_port_params.pfc.priority_non_pauseable_mask);
1048
1049         for (cos = 0 ; cos < bp->dcbx_port_params.ets.num_of_cos ; cos++) {
1050                 DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets."
1051                    "cos_params[%d].pri_bitmask %x\n", cos,
1052                    bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask);
1053
1054                 DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets."
1055                    "cos_params[%d].bw_tbl %x\n", cos,
1056                    bp->dcbx_port_params.ets.cos_params[cos].bw_tbl);
1057
1058                 DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets."
1059                    "cos_params[%d].strict %x\n", cos,
1060                    bp->dcbx_port_params.ets.cos_params[cos].strict);
1061
1062                 DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets."
1063                    "cos_params[%d].pauseable %x\n", cos,
1064                    bp->dcbx_port_params.ets.cos_params[cos].pauseable);
1065         }
1066
1067         for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) {
1068                 DP(NETIF_MSG_LINK,
1069                    "pfc_fw_cfg->traffic_type_to_priority_cos[%d]."
1070                    "priority %x\n", pri,
1071                    pfc_fw_cfg->traffic_type_to_priority_cos[pri].priority);
1072
1073                 DP(NETIF_MSG_LINK,
1074                    "pfc_fw_cfg->traffic_type_to_priority_cos[%d].cos %x\n",
1075                    pri, pfc_fw_cfg->traffic_type_to_priority_cos[pri].cos);
1076         }
1077 }
1078
1079 /* fills help_data according to pg_info */
1080 static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp,
1081                                             u32 *pg_pri_orginal_spread,
1082                                             struct pg_help_data *help_data)
1083 {
1084         bool pg_found  = false;
1085         u32 i, traf_type, add_traf_type, add_pg;
1086         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1087         struct pg_entry_help_data *data = help_data->data; /*shotcut*/
1088
1089         /* Set to invalid */
1090         for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++)
1091                 data[i].pg = DCBX_ILLEGAL_PG;
1092
1093         for (add_traf_type = 0;
1094              add_traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX; add_traf_type++) {
1095                 pg_found = false;
1096                 if (ttp[add_traf_type] < MAX_PFC_PRIORITIES) {
1097                         add_pg = (u8)pg_pri_orginal_spread[ttp[add_traf_type]];
1098                         for (traf_type = 0;
1099                              traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1100                              traf_type++) {
1101                                 if (data[traf_type].pg == add_pg) {
1102                                         if (!(data[traf_type].pg_priority &
1103                                              (1 << ttp[add_traf_type])))
1104                                                 data[traf_type].
1105                                                         num_of_dif_pri++;
1106                                         data[traf_type].pg_priority |=
1107                                                 (1 << ttp[add_traf_type]);
1108                                         pg_found = true;
1109                                         break;
1110                                 }
1111                         }
1112                         if (false == pg_found) {
1113                                 data[help_data->num_of_pg].pg = add_pg;
1114                                 data[help_data->num_of_pg].pg_priority =
1115                                                 (1 << ttp[add_traf_type]);
1116                                 data[help_data->num_of_pg].num_of_dif_pri = 1;
1117                                 help_data->num_of_pg++;
1118                         }
1119                 }
1120                 DP(NETIF_MSG_LINK,
1121                    "add_traf_type %d pg_found %s num_of_pg %d\n",
1122                    add_traf_type, (false == pg_found) ? "NO" : "YES",
1123                    help_data->num_of_pg);
1124         }
1125 }
1126
1127 static void bnx2x_dcbx_ets_disabled_entry_data(struct bnx2x *bp,
1128                                                struct cos_help_data *cos_data,
1129                                                u32 pri_join_mask)
1130 {
1131         /* Only one priority than only one COS */
1132         cos_data->data[0].pausable =
1133                 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1134         cos_data->data[0].pri_join_mask = pri_join_mask;
1135         cos_data->data[0].cos_bw = 100;
1136         cos_data->num_of_cos = 1;
1137 }
1138
1139 static inline void bnx2x_dcbx_add_to_cos_bw(struct bnx2x *bp,
1140                                             struct cos_entry_help_data *data,
1141                                             u8 pg_bw)
1142 {
1143         if (data->cos_bw == DCBX_INVALID_COS_BW)
1144                 data->cos_bw = pg_bw;
1145         else
1146                 data->cos_bw += pg_bw;
1147 }
1148
1149 static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp,
1150                         struct cos_help_data *cos_data,
1151                         u32 *pg_pri_orginal_spread,
1152                         struct dcbx_ets_feature *ets)
1153 {
1154         u32     pri_tested      = 0;
1155         u8      i               = 0;
1156         u8      entry           = 0;
1157         u8      pg_entry        = 0;
1158         u8      num_of_pri      = LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1159
1160         cos_data->data[0].pausable = true;
1161         cos_data->data[1].pausable = false;
1162         cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0;
1163
1164         for (i = 0 ; i < num_of_pri ; i++) {
1165                 pri_tested = 1 << bp->dcbx_port_params.
1166                                         app.traffic_type_priority[i];
1167
1168                 if (pri_tested & DCBX_PFC_PRI_NON_PAUSE_MASK(bp)) {
1169                         cos_data->data[1].pri_join_mask |= pri_tested;
1170                         entry = 1;
1171                 } else {
1172                         cos_data->data[0].pri_join_mask |= pri_tested;
1173                         entry = 0;
1174                 }
1175                 pg_entry = (u8)pg_pri_orginal_spread[bp->dcbx_port_params.
1176                                                 app.traffic_type_priority[i]];
1177                 /* There can be only one strict pg */
1178                 if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES)
1179                         bnx2x_dcbx_add_to_cos_bw(bp, &cos_data->data[entry],
1180                                 DCBX_PG_BW_GET(ets->pg_bw_tbl, pg_entry));
1181                 else
1182                         /* If we join a group and one is strict
1183                          * than the bw rulls */
1184                         cos_data->data[entry].strict =
1185                                                 BNX2X_DCBX_STRICT_COS_HIGHEST;
1186         }
1187         if ((0 == cos_data->data[0].pri_join_mask) &&
1188             (0 == cos_data->data[1].pri_join_mask))
1189                 BNX2X_ERR("dcbx error: Both groups must have priorities\n");
1190 }
1191
1192
1193 #ifndef POWER_OF_2
1194 #define POWER_OF_2(x)   ((0 != x) && (0 == (x & (x-1))))
1195 #endif
1196
1197 static void bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params(struct bnx2x *bp,
1198                                               struct pg_help_data *pg_help_data,
1199                                               struct cos_help_data *cos_data,
1200                                               u32 pri_join_mask,
1201                                               u8 num_of_dif_pri)
1202 {
1203         u8 i = 0;
1204         u32 pri_tested = 0;
1205         u32 pri_mask_without_pri = 0;
1206         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1207         /*debug*/
1208         if (num_of_dif_pri == 1) {
1209                 bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data, pri_join_mask);
1210                 return;
1211         }
1212         /* single priority group */
1213         if (pg_help_data->data[0].pg < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1214                 /* If there are both pauseable and non-pauseable priorities,
1215                  * the pauseable priorities go to the first queue and
1216                  * the non-pauseable priorities go to the second queue.
1217                  */
1218                 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1219                         /* Pauseable */
1220                         cos_data->data[0].pausable = true;
1221                         /* Non pauseable.*/
1222                         cos_data->data[1].pausable = false;
1223
1224                         if (2 == num_of_dif_pri) {
1225                                 cos_data->data[0].cos_bw = 50;
1226                                 cos_data->data[1].cos_bw = 50;
1227                         }
1228
1229                         if (3 == num_of_dif_pri) {
1230                                 if (POWER_OF_2(DCBX_PFC_PRI_GET_PAUSE(bp,
1231                                                         pri_join_mask))) {
1232                                         cos_data->data[0].cos_bw = 33;
1233                                         cos_data->data[1].cos_bw = 67;
1234                                 } else {
1235                                         cos_data->data[0].cos_bw = 67;
1236                                         cos_data->data[1].cos_bw = 33;
1237                                 }
1238                         }
1239
1240                 } else if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask)) {
1241                         /* If there are only pauseable priorities,
1242                          * then one/two priorities go to the first queue
1243                          * and one priority goes to the second queue.
1244                          */
1245                         if (2 == num_of_dif_pri) {
1246                                 cos_data->data[0].cos_bw = 50;
1247                                 cos_data->data[1].cos_bw = 50;
1248                         } else {
1249                                 cos_data->data[0].cos_bw = 67;
1250                                 cos_data->data[1].cos_bw = 33;
1251                         }
1252                         cos_data->data[1].pausable = true;
1253                         cos_data->data[0].pausable = true;
1254                         /* All priorities except FCOE */
1255                         cos_data->data[0].pri_join_mask = (pri_join_mask &
1256                                 ((u8)~(1 << ttp[LLFC_TRAFFIC_TYPE_FCOE])));
1257                         /* Only FCOE priority.*/
1258                         cos_data->data[1].pri_join_mask =
1259                                 (1 << ttp[LLFC_TRAFFIC_TYPE_FCOE]);
1260                 } else
1261                         /* If there are only non-pauseable priorities,
1262                          * they will all go to the same queue.
1263                          */
1264                         bnx2x_dcbx_ets_disabled_entry_data(bp,
1265                                                 cos_data, pri_join_mask);
1266         } else {
1267                 /* priority group which is not BW limited (PG#15):*/
1268                 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1269                         /* If there are both pauseable and non-pauseable
1270                          * priorities, the pauseable priorities go to the first
1271                          * queue and the non-pauseable priorities
1272                          * go to the second queue.
1273                          */
1274                         if (DCBX_PFC_PRI_GET_PAUSE(bp, pri_join_mask) >
1275                             DCBX_PFC_PRI_GET_NON_PAUSE(bp, pri_join_mask)) {
1276                                 cos_data->data[0].strict =
1277                                         BNX2X_DCBX_STRICT_COS_HIGHEST;
1278                                 cos_data->data[1].strict =
1279                                         BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
1280                                                 BNX2X_DCBX_STRICT_COS_HIGHEST);
1281                         } else {
1282                                 cos_data->data[0].strict =
1283                                         BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
1284                                                 BNX2X_DCBX_STRICT_COS_HIGHEST);
1285                                 cos_data->data[1].strict =
1286                                         BNX2X_DCBX_STRICT_COS_HIGHEST;
1287                         }
1288                         /* Pauseable */
1289                         cos_data->data[0].pausable = true;
1290                         /* Non pause-able.*/
1291                         cos_data->data[1].pausable = false;
1292                 } else {
1293                         /* If there are only pauseable priorities or
1294                          * only non-pauseable,* the lower priorities go
1295                          * to the first queue and the higherpriorities go
1296                          * to the second queue.
1297                          */
1298                         cos_data->data[0].pausable =
1299                                 cos_data->data[1].pausable =
1300                                 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1301
1302                         for (i = 0 ; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++) {
1303                                 pri_tested = 1 << bp->dcbx_port_params.
1304                                         app.traffic_type_priority[i];
1305                                 /* Remove priority tested */
1306                                 pri_mask_without_pri =
1307                                         (pri_join_mask & ((u8)(~pri_tested)));
1308                                 if (pri_mask_without_pri < pri_tested)
1309                                         break;
1310                         }
1311
1312                         if (i == LLFC_DRIVER_TRAFFIC_TYPE_MAX)
1313                                 BNX2X_ERR("Invalid value for pri_join_mask -"
1314                                           " could not find a priority\n");
1315
1316                         cos_data->data[0].pri_join_mask = pri_mask_without_pri;
1317                         cos_data->data[1].pri_join_mask = pri_tested;
1318                         /* Both queues are strict priority,
1319                          * and that with the highest priority
1320                          * gets the highest strict priority in the arbiter.
1321                          */
1322                         cos_data->data[0].strict =
1323                                         BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
1324                                                 BNX2X_DCBX_STRICT_COS_HIGHEST);
1325                         cos_data->data[1].strict =
1326                                         BNX2X_DCBX_STRICT_COS_HIGHEST;
1327                 }
1328         }
1329 }
1330
1331 static void bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params(
1332                             struct bnx2x                *bp,
1333                             struct  pg_help_data        *pg_help_data,
1334                             struct dcbx_ets_feature     *ets,
1335                             struct cos_help_data        *cos_data,
1336                             u32                 *pg_pri_orginal_spread,
1337                             u32                         pri_join_mask,
1338                             u8                          num_of_dif_pri)
1339 {
1340         u8 i = 0;
1341         u8 pg[DCBX_COS_MAX_NUM_E2] = { 0 };
1342
1343         /* If there are both pauseable and non-pauseable priorities,
1344          * the pauseable priorities go to the first queue and
1345          * the non-pauseable priorities go to the second queue.
1346          */
1347         if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1348                 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp,
1349                                          pg_help_data->data[0].pg_priority) ||
1350                     IS_DCBX_PFC_PRI_MIX_PAUSE(bp,
1351                                          pg_help_data->data[1].pg_priority)) {
1352                         /* If one PG contains both pauseable and
1353                          * non-pauseable priorities then ETS is disabled.
1354                          */
1355                         bnx2x_dcbx_separate_pauseable_from_non(bp, cos_data,
1356                                         pg_pri_orginal_spread, ets);
1357                         bp->dcbx_port_params.ets.enabled = false;
1358                         return;
1359                 }
1360
1361                 /* Pauseable */
1362                 cos_data->data[0].pausable = true;
1363                 /* Non pauseable. */
1364                 cos_data->data[1].pausable = false;
1365                 if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp,
1366                                 pg_help_data->data[0].pg_priority)) {
1367                         /* 0 is pauseable */
1368                         cos_data->data[0].pri_join_mask =
1369                                 pg_help_data->data[0].pg_priority;
1370                         pg[0] = pg_help_data->data[0].pg;
1371                         cos_data->data[1].pri_join_mask =
1372                                 pg_help_data->data[1].pg_priority;
1373                         pg[1] = pg_help_data->data[1].pg;
1374                 } else {/* 1 is pauseable */
1375                         cos_data->data[0].pri_join_mask =
1376                                 pg_help_data->data[1].pg_priority;
1377                         pg[0] = pg_help_data->data[1].pg;
1378                         cos_data->data[1].pri_join_mask =
1379                                 pg_help_data->data[0].pg_priority;
1380                         pg[1] = pg_help_data->data[0].pg;
1381                 }
1382         } else {
1383                 /* If there are only pauseable priorities or
1384                  * only non-pauseable, each PG goes to a queue.
1385                  */
1386                 cos_data->data[0].pausable = cos_data->data[1].pausable =
1387                         IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1388                 cos_data->data[0].pri_join_mask =
1389                         pg_help_data->data[0].pg_priority;
1390                 pg[0] = pg_help_data->data[0].pg;
1391                 cos_data->data[1].pri_join_mask =
1392                         pg_help_data->data[1].pg_priority;
1393                 pg[1] = pg_help_data->data[1].pg;
1394         }
1395
1396         /* There can be only one strict pg */
1397         for (i = 0 ; i < ARRAY_SIZE(pg); i++) {
1398                 if (pg[i] < DCBX_MAX_NUM_PG_BW_ENTRIES)
1399                         cos_data->data[i].cos_bw =
1400                                 DCBX_PG_BW_GET(ets->pg_bw_tbl, pg[i]);
1401                 else
1402                         cos_data->data[i].strict =
1403                                                 BNX2X_DCBX_STRICT_COS_HIGHEST;
1404         }
1405 }
1406
1407 static int bnx2x_dcbx_join_pgs(
1408                               struct bnx2x            *bp,
1409                               struct dcbx_ets_feature *ets,
1410                               struct pg_help_data     *pg_help_data,
1411                               u8                      required_num_of_pg)
1412 {
1413         u8 entry_joined    = pg_help_data->num_of_pg - 1;
1414         u8 entry_removed   = entry_joined + 1;
1415         u8 pg_joined       = 0;
1416
1417         if (required_num_of_pg == 0 || ARRAY_SIZE(pg_help_data->data)
1418                                                 <= pg_help_data->num_of_pg) {
1419
1420                 BNX2X_ERR("required_num_of_pg can't be zero\n");
1421                 return -EINVAL;
1422         }
1423
1424         while (required_num_of_pg < pg_help_data->num_of_pg) {
1425                 entry_joined = pg_help_data->num_of_pg - 2;
1426                 entry_removed = entry_joined + 1;
1427                 /* protect index */
1428                 entry_removed %= ARRAY_SIZE(pg_help_data->data);
1429
1430                 pg_help_data->data[entry_joined].pg_priority |=
1431                         pg_help_data->data[entry_removed].pg_priority;
1432
1433                 pg_help_data->data[entry_joined].num_of_dif_pri +=
1434                         pg_help_data->data[entry_removed].num_of_dif_pri;
1435
1436                 if (pg_help_data->data[entry_joined].pg == DCBX_STRICT_PRI_PG ||
1437                     pg_help_data->data[entry_removed].pg == DCBX_STRICT_PRI_PG)
1438                         /* Entries joined strict priority rules */
1439                         pg_help_data->data[entry_joined].pg =
1440                                                         DCBX_STRICT_PRI_PG;
1441                 else {
1442                         /* Entries can be joined join BW */
1443                         pg_joined = DCBX_PG_BW_GET(ets->pg_bw_tbl,
1444                                         pg_help_data->data[entry_joined].pg) +
1445                                     DCBX_PG_BW_GET(ets->pg_bw_tbl,
1446                                         pg_help_data->data[entry_removed].pg);
1447
1448                         DCBX_PG_BW_SET(ets->pg_bw_tbl,
1449                                 pg_help_data->data[entry_joined].pg, pg_joined);
1450                 }
1451                 /* Joined the entries */
1452                 pg_help_data->num_of_pg--;
1453         }
1454
1455         return 0;
1456 }
1457
1458 static void bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params(
1459                               struct bnx2x              *bp,
1460                               struct pg_help_data       *pg_help_data,
1461                               struct dcbx_ets_feature   *ets,
1462                               struct cos_help_data      *cos_data,
1463                               u32                       *pg_pri_orginal_spread,
1464                               u32                       pri_join_mask,
1465                               u8                        num_of_dif_pri)
1466 {
1467         u8 i = 0;
1468         u32 pri_tested = 0;
1469         u8 entry = 0;
1470         u8 pg_entry = 0;
1471         bool b_found_strict = false;
1472         u8 num_of_pri = LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1473
1474         cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0;
1475         /* If there are both pauseable and non-pauseable priorities,
1476          * the pauseable priorities go to the first queue and the
1477          * non-pauseable priorities go to the second queue.
1478          */
1479         if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask))
1480                 bnx2x_dcbx_separate_pauseable_from_non(bp,
1481                                 cos_data, pg_pri_orginal_spread, ets);
1482         else {
1483                 /* If two BW-limited PG-s were combined to one queue,
1484                  * the BW is their sum.
1485                  *
1486                  * If there are only pauseable priorities or only non-pauseable,
1487                  * and there are both BW-limited and non-BW-limited PG-s,
1488                  * the BW-limited PG/s go to one queue and the non-BW-limited
1489                  * PG/s go to the second queue.
1490                  *
1491                  * If there are only pauseable priorities or only non-pauseable
1492                  * and all are BW limited, then two priorities go to the first
1493                  * queue and one priority goes to the second queue.
1494                  *
1495                  * We will join this two cases:
1496                  * if one is BW limited it will go to the secoend queue
1497                  * otherwise the last priority will get it
1498                  */
1499
1500                 cos_data->data[0].pausable = cos_data->data[1].pausable =
1501                         IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1502
1503                 for (i = 0 ; i < num_of_pri; i++) {
1504                         pri_tested = 1 << bp->dcbx_port_params.
1505                                 app.traffic_type_priority[i];
1506                         pg_entry = (u8)pg_pri_orginal_spread[bp->
1507                                 dcbx_port_params.app.traffic_type_priority[i]];
1508
1509                         if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1510                                 entry = 0;
1511
1512                                 if (i == (num_of_pri-1) &&
1513                                     false == b_found_strict)
1514                                         /* last entry will be handled separately
1515                                          * If no priority is strict than last
1516                                          * enty goes to last queue.*/
1517                                         entry = 1;
1518                                 cos_data->data[entry].pri_join_mask |=
1519                                                                 pri_tested;
1520                                 bnx2x_dcbx_add_to_cos_bw(bp,
1521                                         &cos_data->data[entry],
1522                                         DCBX_PG_BW_GET(ets->pg_bw_tbl,
1523                                                        pg_entry));
1524                         } else {
1525                                 b_found_strict = true;
1526                                 cos_data->data[1].pri_join_mask |= pri_tested;
1527                                 /* If we join a group and one is strict
1528                                  * than the bw rulls */
1529                                 cos_data->data[1].strict =
1530                                         BNX2X_DCBX_STRICT_COS_HIGHEST;
1531                         }
1532                 }
1533         }
1534 }
1535
1536
1537 static void bnx2x_dcbx_2cos_limit_cee_fill_cos_params(struct bnx2x *bp,
1538                                        struct pg_help_data *help_data,
1539                                        struct dcbx_ets_feature *ets,
1540                                        struct cos_help_data *cos_data,
1541                                        u32 *pg_pri_orginal_spread,
1542                                        u32 pri_join_mask,
1543                                        u8 num_of_dif_pri)
1544 {
1545
1546         /* default E2 settings */
1547         cos_data->num_of_cos = DCBX_COS_MAX_NUM_E2;
1548
1549         switch (help_data->num_of_pg) {
1550         case 1:
1551                 bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params(
1552                                                bp,
1553                                                help_data,
1554                                                cos_data,
1555                                                pri_join_mask,
1556                                                num_of_dif_pri);
1557                 break;
1558         case 2:
1559                 bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params(
1560                                             bp,
1561                                             help_data,
1562                                             ets,
1563                                             cos_data,
1564                                             pg_pri_orginal_spread,
1565                                             pri_join_mask,
1566                                             num_of_dif_pri);
1567                 break;
1568
1569         case 3:
1570                 bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params(
1571                                               bp,
1572                                               help_data,
1573                                               ets,
1574                                               cos_data,
1575                                               pg_pri_orginal_spread,
1576                                               pri_join_mask,
1577                                               num_of_dif_pri);
1578                 break;
1579         default:
1580                 BNX2X_ERR("Wrong pg_help_data.num_of_pg\n");
1581                 bnx2x_dcbx_ets_disabled_entry_data(bp,
1582                                                    cos_data, pri_join_mask);
1583         }
1584 }
1585
1586 static int bnx2x_dcbx_spread_strict_pri(struct bnx2x *bp,
1587                                         struct cos_help_data *cos_data,
1588                                         u8 entry,
1589                                         u8 num_spread_of_entries,
1590                                         u8 strict_app_pris)
1591 {
1592         u8 strict_pri = BNX2X_DCBX_STRICT_COS_HIGHEST;
1593         u8 num_of_app_pri = MAX_PFC_PRIORITIES;
1594         u8 app_pri_bit = 0;
1595
1596         while (num_spread_of_entries && num_of_app_pri > 0) {
1597                 app_pri_bit = 1 << (num_of_app_pri - 1);
1598                 if (app_pri_bit & strict_app_pris) {
1599                         struct cos_entry_help_data *data = &cos_data->
1600                                                                 data[entry];
1601                         num_spread_of_entries--;
1602                         if (num_spread_of_entries == 0) {
1603                                 /* last entry needed put all the entries left */
1604                                 data->cos_bw = DCBX_INVALID_COS_BW;
1605                                 data->strict = strict_pri;
1606                                 data->pri_join_mask = strict_app_pris;
1607                                 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1608                                                         data->pri_join_mask);
1609                         } else {
1610                                 strict_app_pris &= ~app_pri_bit;
1611
1612                                 data->cos_bw = DCBX_INVALID_COS_BW;
1613                                 data->strict = strict_pri;
1614                                 data->pri_join_mask = app_pri_bit;
1615                                 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1616                                                         data->pri_join_mask);
1617                         }
1618
1619                         strict_pri =
1620                             BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(strict_pri);
1621                         entry++;
1622                 }
1623
1624                 num_of_app_pri--;
1625         }
1626
1627         if (num_spread_of_entries)
1628                 return -EINVAL;
1629
1630         return 0;
1631 }
1632
1633 static u8 bnx2x_dcbx_cee_fill_strict_pri(struct bnx2x *bp,
1634                                          struct cos_help_data *cos_data,
1635                                          u8 entry,
1636                                          u8 num_spread_of_entries,
1637                                          u8 strict_app_pris)
1638 {
1639
1640         if (bnx2x_dcbx_spread_strict_pri(bp, cos_data, entry,
1641                                          num_spread_of_entries,
1642                                          strict_app_pris)) {
1643                 struct cos_entry_help_data *data = &cos_data->
1644                                                     data[entry];
1645                 /* Fill BW entry */
1646                 data->cos_bw = DCBX_INVALID_COS_BW;
1647                 data->strict = BNX2X_DCBX_STRICT_COS_HIGHEST;
1648                 data->pri_join_mask = strict_app_pris;
1649                 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1650                                  data->pri_join_mask);
1651                 return 1;
1652         }
1653
1654         return num_spread_of_entries;
1655 }
1656
1657 static void bnx2x_dcbx_cee_fill_cos_params(struct bnx2x *bp,
1658                                            struct pg_help_data *help_data,
1659                                            struct dcbx_ets_feature *ets,
1660                                            struct cos_help_data *cos_data,
1661                                            u32 pri_join_mask)
1662
1663 {
1664         u8 need_num_of_entries = 0;
1665         u8 i = 0;
1666         u8 entry = 0;
1667
1668         /*
1669          * if the number of requested PG-s in CEE is greater than 3
1670          * then the results are not determined since this is a violation
1671          * of the standard.
1672          */
1673         if (help_data->num_of_pg > DCBX_COS_MAX_NUM_E3B0) {
1674                 if (bnx2x_dcbx_join_pgs(bp, ets, help_data,
1675                                         DCBX_COS_MAX_NUM_E3B0)) {
1676                         BNX2X_ERR("Unable to reduce the number of PGs -"
1677                                   "we will disables ETS\n");
1678                         bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data,
1679                                                            pri_join_mask);
1680                         return;
1681                 }
1682         }
1683
1684         for (i = 0 ; i < help_data->num_of_pg; i++) {
1685                 struct pg_entry_help_data *pg =  &help_data->data[i];
1686                 if (pg->pg < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1687                         struct cos_entry_help_data *data = &cos_data->
1688                                                             data[entry];
1689                         /* Fill BW entry */
1690                         data->cos_bw = DCBX_PG_BW_GET(ets->pg_bw_tbl, pg->pg);
1691                         data->strict = BNX2X_DCBX_STRICT_INVALID;
1692                         data->pri_join_mask = pg->pg_priority;
1693                         data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1694                                                 data->pri_join_mask);
1695
1696                         entry++;
1697                 } else {
1698                         need_num_of_entries =  min_t(u8,
1699                                 (u8)pg->num_of_dif_pri,
1700                                 (u8)DCBX_COS_MAX_NUM_E3B0 -
1701                                                  help_data->num_of_pg + 1);
1702                         /*
1703                          * If there are still VOQ-s which have no associated PG,
1704                          * then associate these VOQ-s to PG15. These PG-s will
1705                          * be used for SP between priorities on PG15.
1706                          */
1707                         entry += bnx2x_dcbx_cee_fill_strict_pri(bp, cos_data,
1708                                 entry, need_num_of_entries, pg->pg_priority);
1709                 }
1710         }
1711
1712         /* the entry will represent the number of COSes used */
1713         cos_data->num_of_cos = entry;
1714 }
1715 static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp,
1716                                        struct pg_help_data *help_data,
1717                                        struct dcbx_ets_feature *ets,
1718                                        u32 *pg_pri_orginal_spread)
1719 {
1720         struct cos_help_data         cos_data;
1721         u8                    i                           = 0;
1722         u32                   pri_join_mask               = 0;
1723         u8                    num_of_dif_pri              = 0;
1724
1725         memset(&cos_data, 0, sizeof(cos_data));
1726
1727         /* Validate the pg value */
1728         for (i = 0; i < help_data->num_of_pg ; i++) {
1729                 if (DCBX_STRICT_PRIORITY != help_data->data[i].pg &&
1730                     DCBX_MAX_NUM_PG_BW_ENTRIES <= help_data->data[i].pg)
1731                         BNX2X_ERR("Invalid pg[%d] data %x\n", i,
1732                                   help_data->data[i].pg);
1733                 pri_join_mask   |=  help_data->data[i].pg_priority;
1734                 num_of_dif_pri  += help_data->data[i].num_of_dif_pri;
1735         }
1736
1737         /* defaults */
1738         cos_data.num_of_cos = 1;
1739         for (i = 0; i < ARRAY_SIZE(cos_data.data); i++) {
1740                 cos_data.data[i].pri_join_mask = 0;
1741                 cos_data.data[i].pausable = false;
1742                 cos_data.data[i].strict = BNX2X_DCBX_STRICT_INVALID;
1743                 cos_data.data[i].cos_bw = DCBX_INVALID_COS_BW;
1744         }
1745
1746         if (CHIP_IS_E3B0(bp))
1747                 bnx2x_dcbx_cee_fill_cos_params(bp, help_data, ets,
1748                                                &cos_data, pri_join_mask);
1749         else /* E2 + E3A0 */
1750                 bnx2x_dcbx_2cos_limit_cee_fill_cos_params(bp,
1751                                                           help_data, ets,
1752                                                           &cos_data,
1753                                                           pg_pri_orginal_spread,
1754                                                           pri_join_mask,
1755                                                           num_of_dif_pri);
1756
1757         for (i = 0; i < cos_data.num_of_cos ; i++) {
1758                 struct bnx2x_dcbx_cos_params *p =
1759                         &bp->dcbx_port_params.ets.cos_params[i];
1760
1761                 p->strict = cos_data.data[i].strict;
1762                 p->bw_tbl = cos_data.data[i].cos_bw;
1763                 p->pri_bitmask = cos_data.data[i].pri_join_mask;
1764                 p->pauseable = cos_data.data[i].pausable;
1765
1766                 /* sanity */
1767                 if (p->bw_tbl != DCBX_INVALID_COS_BW ||
1768                     p->strict != BNX2X_DCBX_STRICT_INVALID) {
1769                         if (p->pri_bitmask == 0)
1770                                 BNX2X_ERR("Invalid pri_bitmask for %d\n", i);
1771
1772                         if (CHIP_IS_E2(bp) || CHIP_IS_E3A0(bp)) {
1773
1774                                 if (p->pauseable &&
1775                                     DCBX_PFC_PRI_GET_NON_PAUSE(bp,
1776                                                 p->pri_bitmask) != 0)
1777                                         BNX2X_ERR("Inconsistent config for "
1778                                                   "pausable COS %d\n", i);
1779
1780                                 if (!p->pauseable &&
1781                                     DCBX_PFC_PRI_GET_PAUSE(bp,
1782                                                 p->pri_bitmask) != 0)
1783                                         BNX2X_ERR("Inconsistent config for "
1784                                                   "nonpausable COS %d\n", i);
1785                         }
1786                 }
1787
1788                 if (p->pauseable)
1789                         DP(NETIF_MSG_LINK, "COS %d PAUSABLE prijoinmask 0x%x\n",
1790                                   i, cos_data.data[i].pri_join_mask);
1791                 else
1792                         DP(NETIF_MSG_LINK, "COS %d NONPAUSABLE prijoinmask "
1793                                           "0x%x\n",
1794                                   i, cos_data.data[i].pri_join_mask);
1795         }
1796
1797         bp->dcbx_port_params.ets.num_of_cos = cos_data.num_of_cos ;
1798 }
1799
1800 static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp,
1801                                 u32 *set_configuration_ets_pg,
1802                                 u32 *pri_pg_tbl)
1803 {
1804         int i;
1805
1806         for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) {
1807                 set_configuration_ets_pg[i] = DCBX_PRI_PG_GET(pri_pg_tbl, i);
1808
1809                 DP(NETIF_MSG_LINK, "set_configuration_ets_pg[%d] = 0x%x\n",
1810                    i, set_configuration_ets_pg[i]);
1811         }
1812 }
1813
1814 static void bnx2x_dcbx_fw_struct(struct bnx2x *bp,
1815                                  struct bnx2x_func_tx_start_params *pfc_fw_cfg)
1816 {
1817         u16 pri_bit = 0;
1818         u8 cos = 0, pri = 0;
1819         struct priority_cos *tt2cos;
1820         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1821
1822         memset(pfc_fw_cfg, 0, sizeof(*pfc_fw_cfg));
1823
1824         /* to disable DCB - the structure must be zeroed */
1825         if (bp->dcbx_error & DCBX_REMOTE_MIB_ERROR)
1826                 return;
1827
1828         /*shortcut*/
1829         tt2cos = pfc_fw_cfg->traffic_type_to_priority_cos;
1830
1831         /* Fw version should be incremented each update */
1832         pfc_fw_cfg->dcb_version = ++bp->dcb_version;
1833         pfc_fw_cfg->dcb_enabled = 1;
1834
1835         /* Fill priority parameters */
1836         for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) {
1837                 tt2cos[pri].priority = ttp[pri];
1838                 pri_bit = 1 << tt2cos[pri].priority;
1839
1840                 /* Fill COS parameters based on COS calculated to
1841                  * make it more general for future use */
1842                 for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++)
1843                         if (bp->dcbx_port_params.ets.cos_params[cos].
1844                                                 pri_bitmask & pri_bit)
1845                                         tt2cos[pri].cos = cos;
1846         }
1847
1848         /* we never want the FW to add a 0 vlan tag */
1849         pfc_fw_cfg->dont_add_pri_0_en = 1;
1850
1851         bnx2x_dcbx_print_cos_params(bp, pfc_fw_cfg);
1852 }
1853
1854 void bnx2x_dcbx_pmf_update(struct bnx2x *bp)
1855 {
1856         /* if we need to syncronize DCBX result from prev PMF
1857          * read it from shmem and update bp and netdev accordingly
1858          */
1859         if (SHMEM2_HAS(bp, drv_flags) &&
1860            GET_FLAGS(SHMEM2_RD(bp, drv_flags), DRV_FLAGS_DCB_CONFIGURED)) {
1861                 /* Read neg results if dcbx is in the FW */
1862                 if (bnx2x_dcbx_read_shmem_neg_results(bp))
1863                         return;
1864
1865                 bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat,
1866                                           bp->dcbx_error);
1867                 bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat,
1868                                          bp->dcbx_error);
1869 #ifdef BCM_DCBNL
1870                 /*
1871                  * Add new app tlvs to dcbnl
1872                  */
1873                 bnx2x_dcbnl_update_applist(bp, false);
1874                 /*
1875                  * Send a notification for the new negotiated parameters
1876                  */
1877                 dcbnl_cee_notify(bp->dev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0);
1878 #endif
1879                 /*
1880                  * reconfigure the netdevice with the results of the new
1881                  * dcbx negotiation.
1882                  */
1883                 bnx2x_dcbx_update_tc_mapping(bp);
1884
1885         }
1886 }
1887
1888 /* DCB netlink */
1889 #ifdef BCM_DCBNL
1890
1891 #define BNX2X_DCBX_CAPS         (DCB_CAP_DCBX_LLD_MANAGED | \
1892                                 DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_STATIC)
1893
1894 static inline bool bnx2x_dcbnl_set_valid(struct bnx2x *bp)
1895 {
1896         /* validate dcbnl call that may change HW state:
1897          * DCB is on and DCBX mode was SUCCESSFULLY set by the user.
1898          */
1899         return bp->dcb_state && bp->dcbx_mode_uset;
1900 }
1901
1902 static u8 bnx2x_dcbnl_get_state(struct net_device *netdev)
1903 {
1904         struct bnx2x *bp = netdev_priv(netdev);
1905         DP(NETIF_MSG_LINK, "state = %d\n", bp->dcb_state);
1906         return bp->dcb_state;
1907 }
1908
1909 static u8 bnx2x_dcbnl_set_state(struct net_device *netdev, u8 state)
1910 {
1911         struct bnx2x *bp = netdev_priv(netdev);
1912         DP(NETIF_MSG_LINK, "state = %s\n", state ? "on" : "off");
1913
1914         bnx2x_dcbx_set_state(bp, (state ? true : false), bp->dcbx_enabled);
1915         return 0;
1916 }
1917
1918 static void bnx2x_dcbnl_get_perm_hw_addr(struct net_device *netdev,
1919                                          u8 *perm_addr)
1920 {
1921         struct bnx2x *bp = netdev_priv(netdev);
1922         DP(NETIF_MSG_LINK, "GET-PERM-ADDR\n");
1923
1924         /* first the HW mac address */
1925         memcpy(perm_addr, netdev->dev_addr, netdev->addr_len);
1926
1927 #ifdef BCM_CNIC
1928         /* second SAN address */
1929         memcpy(perm_addr+netdev->addr_len, bp->fip_mac, netdev->addr_len);
1930 #endif
1931 }
1932
1933 static void bnx2x_dcbnl_set_pg_tccfg_tx(struct net_device *netdev, int prio,
1934                                         u8 prio_type, u8 pgid, u8 bw_pct,
1935                                         u8 up_map)
1936 {
1937         struct bnx2x *bp = netdev_priv(netdev);
1938
1939         DP(NETIF_MSG_LINK, "prio[%d] = %d\n", prio, pgid);
1940         if (!bnx2x_dcbnl_set_valid(bp) || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES)
1941                 return;
1942
1943         /**
1944          * bw_pct ingnored -    band-width percentage devision between user
1945          *                      priorities within the same group is not
1946          *                      standard and hence not supported
1947          *
1948          * prio_type igonred -  priority levels within the same group are not
1949          *                      standard and hence are not supported. According
1950          *                      to the standard pgid 15 is dedicated to strict
1951          *                      prioirty traffic (on the port level).
1952          *
1953          * up_map ignored
1954          */
1955
1956         bp->dcbx_config_params.admin_configuration_ets_pg[prio] = pgid;
1957         bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
1958 }
1959
1960 static void bnx2x_dcbnl_set_pg_bwgcfg_tx(struct net_device *netdev,
1961                                          int pgid, u8 bw_pct)
1962 {
1963         struct bnx2x *bp = netdev_priv(netdev);
1964         DP(NETIF_MSG_LINK, "pgid[%d] = %d\n", pgid, bw_pct);
1965
1966         if (!bnx2x_dcbnl_set_valid(bp) || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES)
1967                 return;
1968
1969         bp->dcbx_config_params.admin_configuration_bw_precentage[pgid] = bw_pct;
1970         bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
1971 }
1972
1973 static void bnx2x_dcbnl_set_pg_tccfg_rx(struct net_device *netdev, int prio,
1974                                         u8 prio_type, u8 pgid, u8 bw_pct,
1975                                         u8 up_map)
1976 {
1977         struct bnx2x *bp = netdev_priv(netdev);
1978         DP(NETIF_MSG_LINK, "Nothing to set; No RX support\n");
1979 }
1980
1981 static void bnx2x_dcbnl_set_pg_bwgcfg_rx(struct net_device *netdev,
1982                                          int pgid, u8 bw_pct)
1983 {
1984         struct bnx2x *bp = netdev_priv(netdev);
1985         DP(NETIF_MSG_LINK, "Nothing to set; No RX support\n");
1986 }
1987
1988 static void bnx2x_dcbnl_get_pg_tccfg_tx(struct net_device *netdev, int prio,
1989                                         u8 *prio_type, u8 *pgid, u8 *bw_pct,
1990                                         u8 *up_map)
1991 {
1992         struct bnx2x *bp = netdev_priv(netdev);
1993         DP(NETIF_MSG_LINK, "prio = %d\n", prio);
1994
1995         /**
1996          * bw_pct ingnored -    band-width percentage devision between user
1997          *                      priorities within the same group is not
1998          *                      standard and hence not supported
1999          *
2000          * prio_type igonred -  priority levels within the same group are not
2001          *                      standard and hence are not supported. According
2002          *                      to the standard pgid 15 is dedicated to strict
2003          *                      prioirty traffic (on the port level).
2004          *
2005          * up_map ignored
2006          */
2007         *up_map = *bw_pct = *prio_type = *pgid = 0;
2008
2009         if (!bp->dcb_state || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES)
2010                 return;
2011
2012         *pgid = DCBX_PRI_PG_GET(bp->dcbx_local_feat.ets.pri_pg_tbl, prio);
2013 }
2014
2015 static void bnx2x_dcbnl_get_pg_bwgcfg_tx(struct net_device *netdev,
2016                                          int pgid, u8 *bw_pct)
2017 {
2018         struct bnx2x *bp = netdev_priv(netdev);
2019         DP(NETIF_MSG_LINK, "pgid = %d\n", pgid);
2020
2021         *bw_pct = 0;
2022
2023         if (!bp->dcb_state || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES)
2024                 return;
2025
2026         *bw_pct = DCBX_PG_BW_GET(bp->dcbx_local_feat.ets.pg_bw_tbl, pgid);
2027 }
2028
2029 static void bnx2x_dcbnl_get_pg_tccfg_rx(struct net_device *netdev, int prio,
2030                                         u8 *prio_type, u8 *pgid, u8 *bw_pct,
2031                                         u8 *up_map)
2032 {
2033         struct bnx2x *bp = netdev_priv(netdev);
2034         DP(NETIF_MSG_LINK, "Nothing to get; No RX support\n");
2035
2036         *prio_type = *pgid = *bw_pct = *up_map = 0;
2037 }
2038
2039 static void bnx2x_dcbnl_get_pg_bwgcfg_rx(struct net_device *netdev,
2040                                          int pgid, u8 *bw_pct)
2041 {
2042         struct bnx2x *bp = netdev_priv(netdev);
2043         DP(NETIF_MSG_LINK, "Nothing to get; No RX support\n");
2044
2045         *bw_pct = 0;
2046 }
2047
2048 static void bnx2x_dcbnl_set_pfc_cfg(struct net_device *netdev, int prio,
2049                                     u8 setting)
2050 {
2051         struct bnx2x *bp = netdev_priv(netdev);
2052         DP(NETIF_MSG_LINK, "prio[%d] = %d\n", prio, setting);
2053
2054         if (!bnx2x_dcbnl_set_valid(bp) || prio >= MAX_PFC_PRIORITIES)
2055                 return;
2056
2057         bp->dcbx_config_params.admin_pfc_bitmap |= ((setting ? 1 : 0) << prio);
2058
2059         if (setting)
2060                 bp->dcbx_config_params.admin_pfc_tx_enable = 1;
2061 }
2062
2063 static void bnx2x_dcbnl_get_pfc_cfg(struct net_device *netdev, int prio,
2064                                     u8 *setting)
2065 {
2066         struct bnx2x *bp = netdev_priv(netdev);
2067         DP(NETIF_MSG_LINK, "prio = %d\n", prio);
2068
2069         *setting = 0;
2070
2071         if (!bp->dcb_state || prio >= MAX_PFC_PRIORITIES)
2072                 return;
2073
2074         *setting = (bp->dcbx_local_feat.pfc.pri_en_bitmap >> prio) & 0x1;
2075 }
2076
2077 static u8 bnx2x_dcbnl_set_all(struct net_device *netdev)
2078 {
2079         struct bnx2x *bp = netdev_priv(netdev);
2080         int rc = 0;
2081
2082         DP(NETIF_MSG_LINK, "SET-ALL\n");
2083
2084         if (!bnx2x_dcbnl_set_valid(bp))
2085                 return 1;
2086
2087         if (bp->recovery_state != BNX2X_RECOVERY_DONE) {
2088                 netdev_err(bp->dev, "Handling parity error recovery. "
2089                                 "Try again later\n");
2090                 return 1;
2091         }
2092         if (netif_running(bp->dev)) {
2093                 bnx2x_nic_unload(bp, UNLOAD_NORMAL);
2094                 rc = bnx2x_nic_load(bp, LOAD_NORMAL);
2095         }
2096         DP(NETIF_MSG_LINK, "set_dcbx_params done (%d)\n", rc);
2097         if (rc)
2098                 return 1;
2099
2100         return 0;
2101 }
2102
2103 static u8 bnx2x_dcbnl_get_cap(struct net_device *netdev, int capid, u8 *cap)
2104 {
2105         struct bnx2x *bp = netdev_priv(netdev);
2106         u8 rval = 0;
2107
2108         if (bp->dcb_state) {
2109                 switch (capid) {
2110                 case DCB_CAP_ATTR_PG:
2111                         *cap = true;
2112                         break;
2113                 case DCB_CAP_ATTR_PFC:
2114                         *cap = true;
2115                         break;
2116                 case DCB_CAP_ATTR_UP2TC:
2117                         *cap = false;
2118                         break;
2119                 case DCB_CAP_ATTR_PG_TCS:
2120                         *cap = 0x80;    /* 8 priorities for PGs */
2121                         break;
2122                 case DCB_CAP_ATTR_PFC_TCS:
2123                         *cap = 0x80;    /* 8 priorities for PFC */
2124                         break;
2125                 case DCB_CAP_ATTR_GSP:
2126                         *cap = true;
2127                         break;
2128                 case DCB_CAP_ATTR_BCN:
2129                         *cap = false;
2130                         break;
2131                 case DCB_CAP_ATTR_DCBX:
2132                         *cap = BNX2X_DCBX_CAPS;
2133                         break;
2134                 default:
2135                         rval = -EINVAL;
2136                         break;
2137                 }
2138         } else
2139                 rval = -EINVAL;
2140
2141         DP(NETIF_MSG_LINK, "capid %d:%x\n", capid, *cap);
2142         return rval;
2143 }
2144
2145 static int bnx2x_dcbnl_get_numtcs(struct net_device *netdev, int tcid, u8 *num)
2146 {
2147         struct bnx2x *bp = netdev_priv(netdev);
2148         u8 rval = 0;
2149
2150         DP(NETIF_MSG_LINK, "tcid %d\n", tcid);
2151
2152         if (bp->dcb_state) {
2153                 switch (tcid) {
2154                 case DCB_NUMTCS_ATTR_PG:
2155                         *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 :
2156                                                   DCBX_COS_MAX_NUM_E2;
2157                         break;
2158                 case DCB_NUMTCS_ATTR_PFC:
2159                         *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 :
2160                                                   DCBX_COS_MAX_NUM_E2;
2161                         break;
2162                 default:
2163                         rval = -EINVAL;
2164                         break;
2165                 }
2166         } else
2167                 rval = -EINVAL;
2168
2169         return rval;
2170 }
2171
2172 static int bnx2x_dcbnl_set_numtcs(struct net_device *netdev, int tcid, u8 num)
2173 {
2174         struct bnx2x *bp = netdev_priv(netdev);
2175         DP(NETIF_MSG_LINK, "num tcs = %d; Not supported\n", num);
2176         return -EINVAL;
2177 }
2178
2179 static u8  bnx2x_dcbnl_get_pfc_state(struct net_device *netdev)
2180 {
2181         struct bnx2x *bp = netdev_priv(netdev);
2182         DP(NETIF_MSG_LINK, "state = %d\n", bp->dcbx_local_feat.pfc.enabled);
2183
2184         if (!bp->dcb_state)
2185                 return 0;
2186
2187         return bp->dcbx_local_feat.pfc.enabled;
2188 }
2189
2190 static void bnx2x_dcbnl_set_pfc_state(struct net_device *netdev, u8 state)
2191 {
2192         struct bnx2x *bp = netdev_priv(netdev);
2193         DP(NETIF_MSG_LINK, "state = %s\n", state ? "on" : "off");
2194
2195         if (!bnx2x_dcbnl_set_valid(bp))
2196                 return;
2197
2198         bp->dcbx_config_params.admin_pfc_tx_enable =
2199         bp->dcbx_config_params.admin_pfc_enable = (state ? 1 : 0);
2200 }
2201
2202 static void bnx2x_admin_app_set_ent(
2203         struct bnx2x_admin_priority_app_table *app_ent,
2204         u8 idtype, u16 idval, u8 up)
2205 {
2206         app_ent->valid = 1;
2207
2208         switch (idtype) {
2209         case DCB_APP_IDTYPE_ETHTYPE:
2210                 app_ent->traffic_type = TRAFFIC_TYPE_ETH;
2211                 break;
2212         case DCB_APP_IDTYPE_PORTNUM:
2213                 app_ent->traffic_type = TRAFFIC_TYPE_PORT;
2214                 break;
2215         default:
2216                 break; /* never gets here */
2217         }
2218         app_ent->app_id = idval;
2219         app_ent->priority = up;
2220 }
2221
2222 static bool bnx2x_admin_app_is_equal(
2223         struct bnx2x_admin_priority_app_table *app_ent,
2224         u8 idtype, u16 idval)
2225 {
2226         if (!app_ent->valid)
2227                 return false;
2228
2229         switch (idtype) {
2230         case DCB_APP_IDTYPE_ETHTYPE:
2231                 if (app_ent->traffic_type != TRAFFIC_TYPE_ETH)
2232                         return false;
2233                 break;
2234         case DCB_APP_IDTYPE_PORTNUM:
2235                 if (app_ent->traffic_type != TRAFFIC_TYPE_PORT)
2236                         return false;
2237                 break;
2238         default:
2239                 return false;
2240         }
2241         if (app_ent->app_id != idval)
2242                 return false;
2243
2244         return true;
2245 }
2246
2247 static int bnx2x_set_admin_app_up(struct bnx2x *bp, u8 idtype, u16 idval, u8 up)
2248 {
2249         int i, ff;
2250
2251         /* iterate over the app entries looking for idtype and idval */
2252         for (i = 0, ff = -1; i < DCBX_CONFIG_MAX_APP_PROTOCOL; i++) {
2253                 struct bnx2x_admin_priority_app_table *app_ent =
2254                         &bp->dcbx_config_params.admin_priority_app_table[i];
2255                 if (bnx2x_admin_app_is_equal(app_ent, idtype, idval))
2256                         break;
2257
2258                 if (ff < 0 && !app_ent->valid)
2259                         ff = i;
2260         }
2261         if (i < DCBX_CONFIG_MAX_APP_PROTOCOL)
2262                 /* if found overwrite up */
2263                 bp->dcbx_config_params.
2264                         admin_priority_app_table[i].priority = up;
2265         else if (ff >= 0)
2266                 /* not found use first-free */
2267                 bnx2x_admin_app_set_ent(
2268                         &bp->dcbx_config_params.admin_priority_app_table[ff],
2269                         idtype, idval, up);
2270         else
2271                 /* app table is full */
2272                 return -EBUSY;
2273
2274         /* up configured, if not 0 make sure feature is enabled */
2275         if (up)
2276                 bp->dcbx_config_params.admin_application_priority_tx_enable = 1;
2277
2278         return 0;
2279 }
2280
2281 static u8 bnx2x_dcbnl_set_app_up(struct net_device *netdev, u8 idtype,
2282                                  u16 idval, u8 up)
2283 {
2284         struct bnx2x *bp = netdev_priv(netdev);
2285
2286         DP(NETIF_MSG_LINK, "app_type %d, app_id %x, prio bitmap %d\n",
2287            idtype, idval, up);
2288
2289         if (!bnx2x_dcbnl_set_valid(bp))
2290                 return -EINVAL;
2291
2292         /* verify idtype */
2293         switch (idtype) {
2294         case DCB_APP_IDTYPE_ETHTYPE:
2295         case DCB_APP_IDTYPE_PORTNUM:
2296                 break;
2297         default:
2298                 return -EINVAL;
2299         }
2300         return bnx2x_set_admin_app_up(bp, idtype, idval, up);
2301 }
2302
2303 static u8 bnx2x_dcbnl_get_dcbx(struct net_device *netdev)
2304 {
2305         struct bnx2x *bp = netdev_priv(netdev);
2306         u8 state;
2307
2308         state = DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_CEE;
2309
2310         if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF)
2311                 state |= DCB_CAP_DCBX_STATIC;
2312
2313         return state;
2314 }
2315
2316 static u8 bnx2x_dcbnl_set_dcbx(struct net_device *netdev, u8 state)
2317 {
2318         struct bnx2x *bp = netdev_priv(netdev);
2319         DP(NETIF_MSG_LINK, "state = %02x\n", state);
2320
2321         /* set dcbx mode */
2322
2323         if ((state & BNX2X_DCBX_CAPS) != state) {
2324                 BNX2X_ERR("Requested DCBX mode %x is beyond advertised "
2325                           "capabilities\n", state);
2326                 return 1;
2327         }
2328
2329         if (bp->dcb_state != BNX2X_DCB_STATE_ON) {
2330                 BNX2X_ERR("DCB turned off, DCBX configuration is invalid\n");
2331                 return 1;
2332         }
2333
2334         if (state & DCB_CAP_DCBX_STATIC)
2335                 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_OFF;
2336         else
2337                 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_ON;
2338
2339         bp->dcbx_mode_uset = true;
2340         return 0;
2341 }
2342
2343 static u8 bnx2x_dcbnl_get_featcfg(struct net_device *netdev, int featid,
2344                                   u8 *flags)
2345 {
2346         struct bnx2x *bp = netdev_priv(netdev);
2347         u8 rval = 0;
2348
2349         DP(NETIF_MSG_LINK, "featid %d\n", featid);
2350
2351         if (bp->dcb_state) {
2352                 *flags = 0;
2353                 switch (featid) {
2354                 case DCB_FEATCFG_ATTR_PG:
2355                         if (bp->dcbx_local_feat.ets.enabled)
2356                                 *flags |= DCB_FEATCFG_ENABLE;
2357                         if (bp->dcbx_error & DCBX_LOCAL_ETS_ERROR)
2358                                 *flags |= DCB_FEATCFG_ERROR;
2359                         break;
2360                 case DCB_FEATCFG_ATTR_PFC:
2361                         if (bp->dcbx_local_feat.pfc.enabled)
2362                                 *flags |= DCB_FEATCFG_ENABLE;
2363                         if (bp->dcbx_error & (DCBX_LOCAL_PFC_ERROR |
2364                             DCBX_LOCAL_PFC_MISMATCH))
2365                                 *flags |= DCB_FEATCFG_ERROR;
2366                         break;
2367                 case DCB_FEATCFG_ATTR_APP:
2368                         if (bp->dcbx_local_feat.app.enabled)
2369                                 *flags |= DCB_FEATCFG_ENABLE;
2370                         if (bp->dcbx_error & (DCBX_LOCAL_APP_ERROR |
2371                             DCBX_LOCAL_APP_MISMATCH))
2372                                 *flags |= DCB_FEATCFG_ERROR;
2373                         break;
2374                 default:
2375                         rval = -EINVAL;
2376                         break;
2377                 }
2378         } else
2379                 rval = -EINVAL;
2380
2381         return rval;
2382 }
2383
2384 static u8 bnx2x_dcbnl_set_featcfg(struct net_device *netdev, int featid,
2385                                   u8 flags)
2386 {
2387         struct bnx2x *bp = netdev_priv(netdev);
2388         u8 rval = 0;
2389
2390         DP(NETIF_MSG_LINK, "featid = %d flags = %02x\n", featid, flags);
2391
2392         /* ignore the 'advertise' flag */
2393         if (bnx2x_dcbnl_set_valid(bp)) {
2394                 switch (featid) {
2395                 case DCB_FEATCFG_ATTR_PG:
2396                         bp->dcbx_config_params.admin_ets_enable =
2397                                 flags & DCB_FEATCFG_ENABLE ? 1 : 0;
2398                         bp->dcbx_config_params.admin_ets_willing =
2399                                 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2400                         break;
2401                 case DCB_FEATCFG_ATTR_PFC:
2402                         bp->dcbx_config_params.admin_pfc_enable =
2403                                 flags & DCB_FEATCFG_ENABLE ? 1 : 0;
2404                         bp->dcbx_config_params.admin_pfc_willing =
2405                                 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2406                         break;
2407                 case DCB_FEATCFG_ATTR_APP:
2408                         /* ignore enable, always enabled */
2409                         bp->dcbx_config_params.admin_app_priority_willing =
2410                                 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2411                         break;
2412                 default:
2413                         rval = -EINVAL;
2414                         break;
2415                 }
2416         } else
2417                 rval = -EINVAL;
2418
2419         return rval;
2420 }
2421
2422 static int bnx2x_peer_appinfo(struct net_device *netdev,
2423                               struct dcb_peer_app_info *info, u16* app_count)
2424 {
2425         int i;
2426         struct bnx2x *bp = netdev_priv(netdev);
2427
2428         DP(NETIF_MSG_LINK, "APP-INFO\n");
2429
2430         info->willing = (bp->dcbx_remote_flags & DCBX_APP_REM_WILLING) ?: 0;
2431         info->error = (bp->dcbx_remote_flags & DCBX_APP_RX_ERROR) ?: 0;
2432         *app_count = 0;
2433
2434         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++)
2435                 if (bp->dcbx_remote_feat.app.app_pri_tbl[i].appBitfield &
2436                     DCBX_APP_ENTRY_VALID)
2437                         (*app_count)++;
2438         return 0;
2439 }
2440
2441 static int bnx2x_peer_apptable(struct net_device *netdev,
2442                                struct dcb_app *table)
2443 {
2444         int i, j;
2445         struct bnx2x *bp = netdev_priv(netdev);
2446
2447         DP(NETIF_MSG_LINK, "APP-TABLE\n");
2448
2449         for (i = 0, j = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
2450                 struct dcbx_app_priority_entry *ent =
2451                         &bp->dcbx_remote_feat.app.app_pri_tbl[i];
2452
2453                 if (ent->appBitfield & DCBX_APP_ENTRY_VALID) {
2454                         table[j].selector = bnx2x_dcbx_dcbnl_app_idtype(ent);
2455                         table[j].priority = bnx2x_dcbx_dcbnl_app_up(ent);
2456                         table[j++].protocol = ent->app_id;
2457                 }
2458         }
2459         return 0;
2460 }
2461
2462 static int bnx2x_cee_peer_getpg(struct net_device *netdev, struct cee_pg *pg)
2463 {
2464         int i;
2465         struct bnx2x *bp = netdev_priv(netdev);
2466
2467         pg->willing = (bp->dcbx_remote_flags & DCBX_ETS_REM_WILLING) ?: 0;
2468
2469         for (i = 0; i < CEE_DCBX_MAX_PGS; i++) {
2470                 pg->pg_bw[i] =
2471                         DCBX_PG_BW_GET(bp->dcbx_remote_feat.ets.pg_bw_tbl, i);
2472                 pg->prio_pg[i] =
2473                         DCBX_PRI_PG_GET(bp->dcbx_remote_feat.ets.pri_pg_tbl, i);
2474         }
2475         return 0;
2476 }
2477
2478 static int bnx2x_cee_peer_getpfc(struct net_device *netdev,
2479                                  struct cee_pfc *pfc)
2480 {
2481         struct bnx2x *bp = netdev_priv(netdev);
2482         pfc->tcs_supported = bp->dcbx_remote_feat.pfc.pfc_caps;
2483         pfc->pfc_en = bp->dcbx_remote_feat.pfc.pri_en_bitmap;
2484         return 0;
2485 }
2486
2487 const struct dcbnl_rtnl_ops bnx2x_dcbnl_ops = {
2488         .getstate               = bnx2x_dcbnl_get_state,
2489         .setstate               = bnx2x_dcbnl_set_state,
2490         .getpermhwaddr          = bnx2x_dcbnl_get_perm_hw_addr,
2491         .setpgtccfgtx           = bnx2x_dcbnl_set_pg_tccfg_tx,
2492         .setpgbwgcfgtx          = bnx2x_dcbnl_set_pg_bwgcfg_tx,
2493         .setpgtccfgrx           = bnx2x_dcbnl_set_pg_tccfg_rx,
2494         .setpgbwgcfgrx          = bnx2x_dcbnl_set_pg_bwgcfg_rx,
2495         .getpgtccfgtx           = bnx2x_dcbnl_get_pg_tccfg_tx,
2496         .getpgbwgcfgtx          = bnx2x_dcbnl_get_pg_bwgcfg_tx,
2497         .getpgtccfgrx           = bnx2x_dcbnl_get_pg_tccfg_rx,
2498         .getpgbwgcfgrx          = bnx2x_dcbnl_get_pg_bwgcfg_rx,
2499         .setpfccfg              = bnx2x_dcbnl_set_pfc_cfg,
2500         .getpfccfg              = bnx2x_dcbnl_get_pfc_cfg,
2501         .setall                 = bnx2x_dcbnl_set_all,
2502         .getcap                 = bnx2x_dcbnl_get_cap,
2503         .getnumtcs              = bnx2x_dcbnl_get_numtcs,
2504         .setnumtcs              = bnx2x_dcbnl_set_numtcs,
2505         .getpfcstate            = bnx2x_dcbnl_get_pfc_state,
2506         .setpfcstate            = bnx2x_dcbnl_set_pfc_state,
2507         .setapp                 = bnx2x_dcbnl_set_app_up,
2508         .getdcbx                = bnx2x_dcbnl_get_dcbx,
2509         .setdcbx                = bnx2x_dcbnl_set_dcbx,
2510         .getfeatcfg             = bnx2x_dcbnl_get_featcfg,
2511         .setfeatcfg             = bnx2x_dcbnl_set_featcfg,
2512         .peer_getappinfo        = bnx2x_peer_appinfo,
2513         .peer_getapptable       = bnx2x_peer_apptable,
2514         .cee_peer_getpg         = bnx2x_cee_peer_getpg,
2515         .cee_peer_getpfc        = bnx2x_cee_peer_getpfc,
2516 };
2517
2518 #endif /* BCM_DCBNL */