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

   1 /* bnx2x_dcb.c: Broadcom Everest network driver.
   2  *
   3  * Copyright 2009-2013 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 void bnx2x_pfc_set_pfc(struct bnx2x *bp);
  34 static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp);
  35 static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp,
  36                                           u32 *set_configuration_ets_pg,
  37                                           u32 *pri_pg_tbl);
  38 static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp,
  39                                             u32 *pg_pri_orginal_spread,
  40                                             struct pg_help_data *help_data);
  41 static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp,
  42                                        struct pg_help_data *help_data,
  43                                        struct dcbx_ets_feature *ets,
  44                                        u32 *pg_pri_orginal_spread);
  45 static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp,
  46                                 struct cos_help_data *cos_data,
  47                                 u32 *pg_pri_orginal_spread,
  48                                 struct dcbx_ets_feature *ets);
  49 static void bnx2x_dcbx_fw_struct(struct bnx2x *bp,
  50                                  struct bnx2x_func_tx_start_params*);
  51
  52 /* helpers: read/write len bytes from addr into buff by REG_RD/REG_WR */
  53 static void bnx2x_read_data(struct bnx2x *bp, u32 *buff,
  54                                    u32 addr, u32 len)
  55 {
  56         int i;
  57         for (i = 0; i < len; i += 4, buff++)
  58                 *buff = REG_RD(bp, addr + i);
  59 }
  60
  61 static void bnx2x_write_data(struct bnx2x *bp, u32 *buff,
  62                                     u32 addr, u32 len)
  63 {
  64         int i;
  65         for (i = 0; i < len; i += 4, buff++)
  66                 REG_WR(bp, addr + i, *buff);
  67 }
  68
  69 static void bnx2x_pfc_set(struct bnx2x *bp)
  70 {
  71         struct bnx2x_nig_brb_pfc_port_params pfc_params = {0};
  72         u32 pri_bit, val = 0;
  73         int i;
  74
  75         pfc_params.num_of_rx_cos_priority_mask =
  76                                         bp->dcbx_port_params.ets.num_of_cos;
  77
  78         /* Tx COS configuration */
  79         for (i = 0; i < bp->dcbx_port_params.ets.num_of_cos; i++)
  80                 /*
  81                  * We configure only the pauseable bits (non pauseable aren't
  82                  * configured at all) it's done to avoid false pauses from
  83                  * network
  84                  */
  85                 pfc_params.rx_cos_priority_mask[i] =
  86                         bp->dcbx_port_params.ets.cos_params[i].pri_bitmask
  87                                 & DCBX_PFC_PRI_PAUSE_MASK(bp);
  88
  89         /*
  90          * Rx COS configuration
  91          * Changing PFC RX configuration .
  92          * In RX COS0 will always be configured to lossless and COS1 to lossy
  93          */
  94         for (i = 0 ; i < MAX_PFC_PRIORITIES ; i++) {
  95                 pri_bit = 1 << i;
  96
  97                 if (!(pri_bit & DCBX_PFC_PRI_PAUSE_MASK(bp)))
  98                         val |= 1 << (i * 4);
  99         }
 100
 101         pfc_params.pkt_priority_to_cos = val;
 102
 103         /* RX COS0 */
 104         pfc_params.llfc_low_priority_classes = DCBX_PFC_PRI_PAUSE_MASK(bp);
 105         /* RX COS1 */
 106         pfc_params.llfc_high_priority_classes = 0;
 107
 108         bnx2x_acquire_phy_lock(bp);
 109         bp->link_params.feature_config_flags |= FEATURE_CONFIG_PFC_ENABLED;
 110         bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &pfc_params);
 111         bnx2x_release_phy_lock(bp);
 112 }
 113
 114 static void bnx2x_pfc_clear(struct bnx2x *bp)
 115 {
 116         struct bnx2x_nig_brb_pfc_port_params nig_params = {0};
 117         nig_params.pause_enable = 1;
 118         bnx2x_acquire_phy_lock(bp);
 119         bp->link_params.feature_config_flags &= ~FEATURE_CONFIG_PFC_ENABLED;
 120         bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &nig_params);
 121         bnx2x_release_phy_lock(bp);
 122 }
 123
 124 static void  bnx2x_dump_dcbx_drv_param(struct bnx2x *bp,
 125                                        struct dcbx_features *features,
 126                                        u32 error)
 127 {
 128         u8 i = 0;
 129         DP(NETIF_MSG_LINK, "local_mib.error %x\n", error);
 130
 131         /* PG */
 132         DP(NETIF_MSG_LINK,
 133            "local_mib.features.ets.enabled %x\n", features->ets.enabled);
 134         for (i = 0; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++)
 135                 DP(NETIF_MSG_LINK,
 136                    "local_mib.features.ets.pg_bw_tbl[%d] %d\n", i,
 137                    DCBX_PG_BW_GET(features->ets.pg_bw_tbl, i));
 138         for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++)
 139                 DP(NETIF_MSG_LINK,
 140                    "local_mib.features.ets.pri_pg_tbl[%d] %d\n", i,
 141                    DCBX_PRI_PG_GET(features->ets.pri_pg_tbl, i));
 142
 143         /* pfc */
 144         DP(BNX2X_MSG_DCB, "dcbx_features.pfc.pri_en_bitmap %x\n",
 145                                         features->pfc.pri_en_bitmap);
 146         DP(BNX2X_MSG_DCB, "dcbx_features.pfc.pfc_caps %x\n",
 147                                         features->pfc.pfc_caps);
 148         DP(BNX2X_MSG_DCB, "dcbx_features.pfc.enabled %x\n",
 149                                         features->pfc.enabled);
 150
 151         DP(BNX2X_MSG_DCB, "dcbx_features.app.default_pri %x\n",
 152                                         features->app.default_pri);
 153         DP(BNX2X_MSG_DCB, "dcbx_features.app.tc_supported %x\n",
 154                                         features->app.tc_supported);
 155         DP(BNX2X_MSG_DCB, "dcbx_features.app.enabled %x\n",
 156                                         features->app.enabled);
 157         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
 158                 DP(BNX2X_MSG_DCB,
 159                    "dcbx_features.app.app_pri_tbl[%x].app_id %x\n",
 160                    i, features->app.app_pri_tbl[i].app_id);
 161                 DP(BNX2X_MSG_DCB,
 162                    "dcbx_features.app.app_pri_tbl[%x].pri_bitmap %x\n",
 163                    i, features->app.app_pri_tbl[i].pri_bitmap);
 164                 DP(BNX2X_MSG_DCB,
 165                    "dcbx_features.app.app_pri_tbl[%x].appBitfield %x\n",
 166                    i, features->app.app_pri_tbl[i].appBitfield);
 167         }
 168 }
 169
 170 static void bnx2x_dcbx_get_ap_priority(struct bnx2x *bp,
 171                                        u8 pri_bitmap,
 172                                        u8 llfc_traf_type)
 173 {
 174         u32 pri = MAX_PFC_PRIORITIES;
 175         u32 index = MAX_PFC_PRIORITIES - 1;
 176         u32 pri_mask;
 177         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
 178
 179         /* Choose the highest priority */
 180         while ((MAX_PFC_PRIORITIES == pri) && (0 != index)) {
 181                 pri_mask = 1 << index;
 182                 if (GET_FLAGS(pri_bitmap, pri_mask))
 183                         pri = index ;
 184                 index--;
 185         }
 186
 187         if (pri < MAX_PFC_PRIORITIES)
 188                 ttp[llfc_traf_type] = max_t(u32, ttp[llfc_traf_type], pri);
 189 }
 190
 191 static void bnx2x_dcbx_get_ap_feature(struct bnx2x *bp,
 192                                    struct dcbx_app_priority_feature *app,
 193                                    u32 error) {
 194         u8 index;
 195         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
 196
 197         if (GET_FLAGS(error, DCBX_LOCAL_APP_ERROR))
 198                 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_APP_ERROR\n");
 199
 200         if (GET_FLAGS(error, DCBX_LOCAL_APP_MISMATCH))
 201                 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_APP_MISMATCH\n");
 202
 203         if (GET_FLAGS(error, DCBX_REMOTE_APP_TLV_NOT_FOUND))
 204                 DP(BNX2X_MSG_DCB, "DCBX_REMOTE_APP_TLV_NOT_FOUND\n");
 205         if (app->enabled &&
 206             !GET_FLAGS(error, DCBX_LOCAL_APP_ERROR | DCBX_LOCAL_APP_MISMATCH |
 207                               DCBX_REMOTE_APP_TLV_NOT_FOUND)) {
 208
 209                 bp->dcbx_port_params.app.enabled = true;
 210
 211                 for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++)
 212                         ttp[index] = 0;
 213
 214                 if (app->default_pri < MAX_PFC_PRIORITIES)
 215                         ttp[LLFC_TRAFFIC_TYPE_NW] = app->default_pri;
 216
 217                 for (index = 0 ; index < DCBX_MAX_APP_PROTOCOL; index++) {
 218                         struct dcbx_app_priority_entry *entry =
 219                                                         app->app_pri_tbl;
 220
 221                         if (GET_FLAGS(entry[index].appBitfield,
 222                                      DCBX_APP_SF_ETH_TYPE) &&
 223                            ETH_TYPE_FCOE == entry[index].app_id)
 224                                 bnx2x_dcbx_get_ap_priority(bp,
 225                                                 entry[index].pri_bitmap,
 226                                                 LLFC_TRAFFIC_TYPE_FCOE);
 227
 228                         if (GET_FLAGS(entry[index].appBitfield,
 229                                      DCBX_APP_SF_PORT) &&
 230                            TCP_PORT_ISCSI == entry[index].app_id)
 231                                 bnx2x_dcbx_get_ap_priority(bp,
 232                                                 entry[index].pri_bitmap,
 233                                                 LLFC_TRAFFIC_TYPE_ISCSI);
 234                 }
 235         } else {
 236                 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_APP_DISABLED\n");
 237                 bp->dcbx_port_params.app.enabled = false;
 238                 for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++)
 239                         ttp[index] = INVALID_TRAFFIC_TYPE_PRIORITY;
 240         }
 241 }
 242
 243 static void bnx2x_dcbx_get_ets_feature(struct bnx2x *bp,
 244                                        struct dcbx_ets_feature *ets,
 245                                        u32 error) {
 246         int i = 0;
 247         u32 pg_pri_orginal_spread[DCBX_MAX_NUM_PG_BW_ENTRIES] = {0};
 248         struct pg_help_data pg_help_data;
 249         struct bnx2x_dcbx_cos_params *cos_params =
 250                         bp->dcbx_port_params.ets.cos_params;
 251
 252         memset(&pg_help_data, 0, sizeof(struct pg_help_data));
 253
 254         if (GET_FLAGS(error, DCBX_LOCAL_ETS_ERROR))
 255                 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_ERROR\n");
 256
 257         if (GET_FLAGS(error, DCBX_REMOTE_ETS_TLV_NOT_FOUND))
 258                 DP(BNX2X_MSG_DCB, "DCBX_REMOTE_ETS_TLV_NOT_FOUND\n");
 259
 260         /* Clean up old settings of ets on COS */
 261         for (i = 0; i < ARRAY_SIZE(bp->dcbx_port_params.ets.cos_params) ; i++) {
 262                 cos_params[i].pauseable = false;
 263                 cos_params[i].strict = BNX2X_DCBX_STRICT_INVALID;
 264                 cos_params[i].bw_tbl = DCBX_INVALID_COS_BW;
 265                 cos_params[i].pri_bitmask = 0;
 266         }
 267
 268         if (bp->dcbx_port_params.app.enabled && ets->enabled &&
 269            !GET_FLAGS(error,
 270                       DCBX_LOCAL_ETS_ERROR | DCBX_REMOTE_ETS_TLV_NOT_FOUND)) {
 271                 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_ENABLE\n");
 272                 bp->dcbx_port_params.ets.enabled = true;
 273
 274                 bnx2x_dcbx_get_ets_pri_pg_tbl(bp,
 275                                               pg_pri_orginal_spread,
 276                                               ets->pri_pg_tbl);
 277
 278                 bnx2x_dcbx_get_num_pg_traf_type(bp,
 279                                                 pg_pri_orginal_spread,
 280                                                 &pg_help_data);
 281
 282                 bnx2x_dcbx_fill_cos_params(bp, &pg_help_data,
 283                                            ets, pg_pri_orginal_spread);
 284
 285         } else {
 286                 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_DISABLED\n");
 287                 bp->dcbx_port_params.ets.enabled = false;
 288                 ets->pri_pg_tbl[0] = 0;
 289
 290                 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES ; i++)
 291                         DCBX_PG_BW_SET(ets->pg_bw_tbl, i, 1);
 292         }
 293 }
 294
 295 static void  bnx2x_dcbx_get_pfc_feature(struct bnx2x *bp,
 296                                         struct dcbx_pfc_feature *pfc, u32 error)
 297 {
 298         if (GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR))
 299                 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_PFC_ERROR\n");
 300
 301         if (GET_FLAGS(error, DCBX_REMOTE_PFC_TLV_NOT_FOUND))
 302                 DP(BNX2X_MSG_DCB, "DCBX_REMOTE_PFC_TLV_NOT_FOUND\n");
 303         if (bp->dcbx_port_params.app.enabled && pfc->enabled &&
 304            !GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR | DCBX_LOCAL_PFC_MISMATCH |
 305                              DCBX_REMOTE_PFC_TLV_NOT_FOUND)) {
 306                 bp->dcbx_port_params.pfc.enabled = true;
 307                 bp->dcbx_port_params.pfc.priority_non_pauseable_mask =
 308                         ~(pfc->pri_en_bitmap);
 309         } else {
 310                 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_PFC_DISABLED\n");
 311                 bp->dcbx_port_params.pfc.enabled = false;
 312                 bp->dcbx_port_params.pfc.priority_non_pauseable_mask = 0;
 313         }
 314 }
 315
 316 /* maps unmapped priorities to to the same COS as L2 */
 317 static void bnx2x_dcbx_map_nw(struct bnx2x *bp)
 318 {
 319         int i;
 320         u32 unmapped = (1 << MAX_PFC_PRIORITIES) - 1; /* all ones */
 321         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
 322         u32 nw_prio = 1 << ttp[LLFC_TRAFFIC_TYPE_NW];
 323         struct bnx2x_dcbx_cos_params *cos_params =
 324                         bp->dcbx_port_params.ets.cos_params;
 325
 326         /* get unmapped priorities by clearing mapped bits */
 327         for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++)
 328                 unmapped &= ~(1 << ttp[i]);
 329
 330         /* find cos for nw prio and extend it with unmapped */
 331         for (i = 0; i < ARRAY_SIZE(bp->dcbx_port_params.ets.cos_params); i++) {
 332                 if (cos_params[i].pri_bitmask & nw_prio) {
 333                         /* extend the bitmask with unmapped */
 334                         DP(BNX2X_MSG_DCB,
 335                            "cos %d extended with 0x%08x\n", i, unmapped);
 336                         cos_params[i].pri_bitmask |= unmapped;
 337                         break;
 338                 }
 339         }
 340 }
 341
 342 static void bnx2x_get_dcbx_drv_param(struct bnx2x *bp,
 343                                      struct dcbx_features *features,
 344                                      u32 error)
 345 {
 346         bnx2x_dcbx_get_ap_feature(bp, &features->app, error);
 347
 348         bnx2x_dcbx_get_pfc_feature(bp, &features->pfc, error);
 349
 350         bnx2x_dcbx_get_ets_feature(bp, &features->ets, error);
 351
 352         bnx2x_dcbx_map_nw(bp);
 353 }
 354
 355 #define DCBX_LOCAL_MIB_MAX_TRY_READ             (100)
 356 static int bnx2x_dcbx_read_mib(struct bnx2x *bp,
 357                                u32 *base_mib_addr,
 358                                u32 offset,
 359                                int read_mib_type)
 360 {
 361         int max_try_read = 0;
 362         u32 mib_size, prefix_seq_num, suffix_seq_num;
 363         struct lldp_remote_mib *remote_mib ;
 364         struct lldp_local_mib  *local_mib;
 365
 366         switch (read_mib_type) {
 367         case DCBX_READ_LOCAL_MIB:
 368                 mib_size = sizeof(struct lldp_local_mib);
 369                 break;
 370         case DCBX_READ_REMOTE_MIB:
 371                 mib_size = sizeof(struct lldp_remote_mib);
 372                 break;
 373         default:
 374                 return 1; /*error*/
 375         }
 376
 377         offset += BP_PORT(bp) * mib_size;
 378
 379         do {
 380                 bnx2x_read_data(bp, base_mib_addr, offset, mib_size);
 381
 382                 max_try_read++;
 383
 384                 switch (read_mib_type) {
 385                 case DCBX_READ_LOCAL_MIB:
 386                         local_mib = (struct lldp_local_mib *) base_mib_addr;
 387                         prefix_seq_num = local_mib->prefix_seq_num;
 388                         suffix_seq_num = local_mib->suffix_seq_num;
 389                         break;
 390                 case DCBX_READ_REMOTE_MIB:
 391                         remote_mib = (struct lldp_remote_mib *) base_mib_addr;
 392                         prefix_seq_num = remote_mib->prefix_seq_num;
 393                         suffix_seq_num = remote_mib->suffix_seq_num;
 394                         break;
 395                 default:
 396                         return 1; /*error*/
 397                 }
 398         } while ((prefix_seq_num != suffix_seq_num) &&
 399                (max_try_read < DCBX_LOCAL_MIB_MAX_TRY_READ));
 400
 401         if (max_try_read >= DCBX_LOCAL_MIB_MAX_TRY_READ) {
 402                 BNX2X_ERR("MIB could not be read\n");
 403                 return 1;
 404         }
 405
 406         return 0;
 407 }
 408
 409 static void bnx2x_pfc_set_pfc(struct bnx2x *bp)
 410 {
 411         int mfw_configured = SHMEM2_HAS(bp, drv_flags) &&
 412                              GET_FLAGS(SHMEM2_RD(bp, drv_flags),
 413                                        1 << DRV_FLAGS_DCB_MFW_CONFIGURED);
 414
 415         if (bp->dcbx_port_params.pfc.enabled &&
 416             (!(bp->dcbx_error & DCBX_REMOTE_MIB_ERROR) || mfw_configured))
 417                 /*
 418                  * 1. Fills up common PFC structures if required
 419                  * 2. Configure NIG, MAC and BRB via the elink
 420                  */
 421                 bnx2x_pfc_set(bp);
 422         else
 423                 bnx2x_pfc_clear(bp);
 424 }
 425
 426 int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp)
 427 {
 428         struct bnx2x_func_state_params func_params = {NULL};
 429         int rc;
 430
 431         func_params.f_obj = &bp->func_obj;
 432         func_params.cmd = BNX2X_F_CMD_TX_STOP;
 433
 434         __set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags);
 435         __set_bit(RAMROD_RETRY, &func_params.ramrod_flags);
 436
 437         DP(BNX2X_MSG_DCB, "STOP TRAFFIC\n");
 438
 439         rc = bnx2x_func_state_change(bp, &func_params);
 440         if (rc) {
 441                 BNX2X_ERR("Unable to hold traffic for HW configuration\n");
 442                 bnx2x_panic();
 443         }
 444
 445         return rc;
 446 }
 447
 448 int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp)
 449 {
 450         struct bnx2x_func_state_params func_params = {NULL};
 451         struct bnx2x_func_tx_start_params *tx_params =
 452                 &func_params.params.tx_start;
 453         int rc;
 454
 455         func_params.f_obj = &bp->func_obj;
 456         func_params.cmd = BNX2X_F_CMD_TX_START;
 457
 458         __set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags);
 459         __set_bit(RAMROD_RETRY, &func_params.ramrod_flags);
 460
 461         bnx2x_dcbx_fw_struct(bp, tx_params);
 462
 463         DP(BNX2X_MSG_DCB, "START TRAFFIC\n");
 464
 465         rc = bnx2x_func_state_change(bp, &func_params);
 466         if (rc) {
 467                 BNX2X_ERR("Unable to resume traffic after HW configuration\n");
 468                 bnx2x_panic();
 469         }
 470
 471         return rc;
 472 }
 473
 474 static void bnx2x_dcbx_2cos_limit_update_ets_config(struct bnx2x *bp)
 475 {
 476         struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets);
 477         int rc = 0;
 478
 479         if (ets->num_of_cos == 0 || ets->num_of_cos > DCBX_COS_MAX_NUM_E2) {
 480                 BNX2X_ERR("Illegal number of COSes %d\n", ets->num_of_cos);
 481                 return;
 482         }
 483
 484         /* valid COS entries */
 485         if (ets->num_of_cos == 1)   /* no ETS */
 486                 return;
 487
 488         /* sanity */
 489         if (((BNX2X_DCBX_STRICT_INVALID == ets->cos_params[0].strict) &&
 490              (DCBX_INVALID_COS_BW == ets->cos_params[0].bw_tbl)) ||
 491             ((BNX2X_DCBX_STRICT_INVALID == ets->cos_params[1].strict) &&
 492              (DCBX_INVALID_COS_BW == ets->cos_params[1].bw_tbl))) {
 493                 BNX2X_ERR("all COS should have at least bw_limit or strict"
 494                             "ets->cos_params[0].strict= %x"
 495                             "ets->cos_params[0].bw_tbl= %x"
 496                             "ets->cos_params[1].strict= %x"
 497                             "ets->cos_params[1].bw_tbl= %x",
 498                           ets->cos_params[0].strict,
 499                           ets->cos_params[0].bw_tbl,
 500                           ets->cos_params[1].strict,
 501                           ets->cos_params[1].bw_tbl);
 502                 return;
 503         }
 504         /* If we join a group and there is bw_tbl and strict then bw rules */
 505         if ((DCBX_INVALID_COS_BW != ets->cos_params[0].bw_tbl) &&
 506             (DCBX_INVALID_COS_BW != ets->cos_params[1].bw_tbl)) {
 507                 u32 bw_tbl_0 = ets->cos_params[0].bw_tbl;
 508                 u32 bw_tbl_1 = ets->cos_params[1].bw_tbl;
 509                 /* Do not allow 0-100 configuration
 510                  * since PBF does not support it
 511                  * force 1-99 instead
 512                  */
 513                 if (bw_tbl_0 == 0) {
 514                         bw_tbl_0 = 1;
 515                         bw_tbl_1 = 99;
 516                 } else if (bw_tbl_1 == 0) {
 517                         bw_tbl_1 = 1;
 518                         bw_tbl_0 = 99;
 519                 }
 520
 521                 bnx2x_ets_bw_limit(&bp->link_params, bw_tbl_0, bw_tbl_1);
 522         } else {
 523                 if (ets->cos_params[0].strict == BNX2X_DCBX_STRICT_COS_HIGHEST)
 524                         rc = bnx2x_ets_strict(&bp->link_params, 0);
 525                 else if (ets->cos_params[1].strict
 526                                         == BNX2X_DCBX_STRICT_COS_HIGHEST)
 527                         rc = bnx2x_ets_strict(&bp->link_params, 1);
 528                 if (rc)
 529                         BNX2X_ERR("update_ets_params failed\n");
 530         }
 531 }
 532
 533 /*
 534  * In E3B0 the configuration may have more than 2 COS.
 535  */
 536 static void bnx2x_dcbx_update_ets_config(struct bnx2x *bp)
 537 {
 538         struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets);
 539         struct bnx2x_ets_params ets_params = { 0 };
 540         u8 i;
 541
 542         ets_params.num_of_cos = ets->num_of_cos;
 543
 544         for (i = 0; i < ets->num_of_cos; i++) {
 545                 /* COS is SP */
 546                 if (ets->cos_params[i].strict != BNX2X_DCBX_STRICT_INVALID) {
 547                         if (ets->cos_params[i].bw_tbl != DCBX_INVALID_COS_BW) {
 548                                 BNX2X_ERR("COS can't be not BW and not SP\n");
 549                                 return;
 550                         }
 551
 552                         ets_params.cos[i].state = bnx2x_cos_state_strict;
 553                         ets_params.cos[i].params.sp_params.pri =
 554                                                 ets->cos_params[i].strict;
 555                 } else { /* COS is BW */
 556                         if (ets->cos_params[i].bw_tbl == DCBX_INVALID_COS_BW) {
 557                                 BNX2X_ERR("COS can't be not BW and not SP\n");
 558                                 return;
 559                         }
 560                         ets_params.cos[i].state = bnx2x_cos_state_bw;
 561                         ets_params.cos[i].params.bw_params.bw =
 562                                                 (u8)ets->cos_params[i].bw_tbl;
 563                 }
 564         }
 565
 566         /* Configure the ETS in HW */
 567         if (bnx2x_ets_e3b0_config(&bp->link_params, &bp->link_vars,
 568                                   &ets_params)) {
 569                 BNX2X_ERR("bnx2x_ets_e3b0_config failed\n");
 570                 bnx2x_ets_disabled(&bp->link_params, &bp->link_vars);
 571         }
 572 }
 573
 574 static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp)
 575 {
 576         int mfw_configured = SHMEM2_HAS(bp, drv_flags) &&
 577                              GET_FLAGS(SHMEM2_RD(bp, drv_flags),
 578                                        1 << DRV_FLAGS_DCB_MFW_CONFIGURED);
 579
 580         bnx2x_ets_disabled(&bp->link_params, &bp->link_vars);
 581
 582         if (!bp->dcbx_port_params.ets.enabled ||
 583             ((bp->dcbx_error & DCBX_REMOTE_MIB_ERROR) && !mfw_configured))
 584                 return;
 585
 586         if (CHIP_IS_E3B0(bp))
 587                 bnx2x_dcbx_update_ets_config(bp);
 588         else
 589                 bnx2x_dcbx_2cos_limit_update_ets_config(bp);
 590 }
 591
 592 #ifdef BCM_DCBNL
 593 static int bnx2x_dcbx_read_shmem_remote_mib(struct bnx2x *bp)
 594 {
 595         struct lldp_remote_mib remote_mib = {0};
 596         u32 dcbx_remote_mib_offset = SHMEM2_RD(bp, dcbx_remote_mib_offset);
 597         int rc;
 598
 599         DP(BNX2X_MSG_DCB, "dcbx_remote_mib_offset 0x%x\n",
 600            dcbx_remote_mib_offset);
 601
 602         if (SHMEM_DCBX_REMOTE_MIB_NONE == dcbx_remote_mib_offset) {
 603                 BNX2X_ERR("FW doesn't support dcbx_remote_mib_offset\n");
 604                 return -EINVAL;
 605         }
 606
 607         rc = bnx2x_dcbx_read_mib(bp, (u32 *)&remote_mib, dcbx_remote_mib_offset,
 608                                  DCBX_READ_REMOTE_MIB);
 609
 610         if (rc) {
 611                 BNX2X_ERR("Failed to read remote mib from FW\n");
 612                 return rc;
 613         }
 614
 615         /* save features and flags */
 616         bp->dcbx_remote_feat = remote_mib.features;
 617         bp->dcbx_remote_flags = remote_mib.flags;
 618         return 0;
 619 }
 620 #endif
 621
 622 static int bnx2x_dcbx_read_shmem_neg_results(struct bnx2x *bp)
 623 {
 624         struct lldp_local_mib local_mib = {0};
 625         u32 dcbx_neg_res_offset = SHMEM2_RD(bp, dcbx_neg_res_offset);
 626         int rc;
 627
 628         DP(BNX2X_MSG_DCB, "dcbx_neg_res_offset 0x%x\n", dcbx_neg_res_offset);
 629
 630         if (SHMEM_DCBX_NEG_RES_NONE == dcbx_neg_res_offset) {
 631                 BNX2X_ERR("FW doesn't support dcbx_neg_res_offset\n");
 632                 return -EINVAL;
 633         }
 634
 635         rc = bnx2x_dcbx_read_mib(bp, (u32 *)&local_mib, dcbx_neg_res_offset,
 636                                  DCBX_READ_LOCAL_MIB);
 637
 638         if (rc) {
 639                 BNX2X_ERR("Failed to read local mib from FW\n");
 640                 return rc;
 641         }
 642
 643         /* save features and error */
 644         bp->dcbx_local_feat = local_mib.features;
 645         bp->dcbx_error = local_mib.error;
 646         return 0;
 647 }
 648
 649 #ifdef BCM_DCBNL
 650 static inline
 651 u8 bnx2x_dcbx_dcbnl_app_up(struct dcbx_app_priority_entry *ent)
 652 {
 653         u8 pri;
 654
 655         /* Choose the highest priority */
 656         for (pri = MAX_PFC_PRIORITIES - 1; pri > 0; pri--)
 657                 if (ent->pri_bitmap & (1 << pri))
 658                         break;
 659         return pri;
 660 }
 661
 662 static inline
 663 u8 bnx2x_dcbx_dcbnl_app_idtype(struct dcbx_app_priority_entry *ent)
 664 {
 665         return ((ent->appBitfield & DCBX_APP_ENTRY_SF_MASK) ==
 666                 DCBX_APP_SF_PORT) ? DCB_APP_IDTYPE_PORTNUM :
 667                 DCB_APP_IDTYPE_ETHTYPE;
 668 }
 669
 670 int bnx2x_dcbnl_update_applist(struct bnx2x *bp, bool delall)
 671 {
 672         int i, err = 0;
 673
 674         for (i = 0; i < DCBX_MAX_APP_PROTOCOL && err == 0; i++) {
 675                 struct dcbx_app_priority_entry *ent =
 676                         &bp->dcbx_local_feat.app.app_pri_tbl[i];
 677
 678                 if (ent->appBitfield & DCBX_APP_ENTRY_VALID) {
 679                         u8 up = bnx2x_dcbx_dcbnl_app_up(ent);
 680
 681                         /* avoid invalid user-priority */
 682                         if (up) {
 683                                 struct dcb_app app;
 684                                 app.selector = bnx2x_dcbx_dcbnl_app_idtype(ent);
 685                                 app.protocol = ent->app_id;
 686                                 app.priority = delall ? 0 : up;
 687                                 err = dcb_setapp(bp->dev, &app);
 688                         }
 689                 }
 690         }
 691         return err;
 692 }
 693 #endif
 694
 695 static inline void bnx2x_dcbx_update_tc_mapping(struct bnx2x *bp)
 696 {
 697         u8 prio, cos;
 698         for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++) {
 699                 for (prio = 0; prio < BNX2X_MAX_PRIORITY; prio++) {
 700                         if (bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask
 701                             & (1 << prio)) {
 702                                 bp->prio_to_cos[prio] = cos;
 703                                 DP(BNX2X_MSG_DCB,
 704                                    "tx_mapping %d --> %d\n", prio, cos);
 705                         }
 706                 }
 707         }
 708
 709         /* setup tc must be called under rtnl lock, but we can't take it here
 710          * as we are handling an attention on a work queue which must be
 711          * flushed at some rtnl-locked contexts (e.g. if down)
 712          */
 713         if (!test_and_set_bit(BNX2X_SP_RTNL_SETUP_TC, &bp->sp_rtnl_state))
 714                 schedule_delayed_work(&bp->sp_rtnl_task, 0);
 715 }
 716
 717 void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state)
 718 {
 719         switch (state) {
 720         case BNX2X_DCBX_STATE_NEG_RECEIVED:
 721                 {
 722                         DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_NEG_RECEIVED\n");
 723 #ifdef BCM_DCBNL
 724                         /**
 725                          * Delete app tlvs from dcbnl before reading new
 726                          * negotiation results
 727                          */
 728                         bnx2x_dcbnl_update_applist(bp, true);
 729
 730                         /* Read remote mib if dcbx is in the FW */
 731                         if (bnx2x_dcbx_read_shmem_remote_mib(bp))
 732                                 return;
 733 #endif
 734                         /* Read neg results if dcbx is in the FW */
 735                         if (bnx2x_dcbx_read_shmem_neg_results(bp))
 736                                 return;
 737
 738                         bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat,
 739                                                   bp->dcbx_error);
 740
 741                         bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat,
 742                                                  bp->dcbx_error);
 743
 744                         /* mark DCBX result for PMF migration */
 745                         bnx2x_update_drv_flags(bp,
 746                                                1 << DRV_FLAGS_DCB_CONFIGURED,
 747                                                1);
 748 #ifdef BCM_DCBNL
 749                         /*
 750                          * Add new app tlvs to dcbnl
 751                          */
 752                         bnx2x_dcbnl_update_applist(bp, false);
 753 #endif
 754                         /*
 755                          * reconfigure the netdevice with the results of the new
 756                          * dcbx negotiation.
 757                          */
 758                         bnx2x_dcbx_update_tc_mapping(bp);
 759
 760                         /*
 761                          * allow other functions to update their netdevices
 762                          * accordingly
 763                          */
 764                         if (IS_MF(bp))
 765                                 bnx2x_link_sync_notify(bp);
 766
 767                         set_bit(BNX2X_SP_RTNL_TX_STOP, &bp->sp_rtnl_state);
 768
 769                         schedule_delayed_work(&bp->sp_rtnl_task, 0);
 770
 771                         return;
 772                 }
 773         case BNX2X_DCBX_STATE_TX_PAUSED:
 774                 DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_TX_PAUSED\n");
 775                 bnx2x_pfc_set_pfc(bp);
 776
 777                 bnx2x_dcbx_update_ets_params(bp);
 778
 779                 /* ets may affect cmng configuration: reinit it in hw */
 780                 bnx2x_set_local_cmng(bp);
 781
 782                 set_bit(BNX2X_SP_RTNL_TX_RESUME, &bp->sp_rtnl_state);
 783
 784                 schedule_delayed_work(&bp->sp_rtnl_task, 0);
 785
 786                 return;
 787         case BNX2X_DCBX_STATE_TX_RELEASED:
 788                 DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_TX_RELEASED\n");
 789                 bnx2x_fw_command(bp, DRV_MSG_CODE_DCBX_PMF_DRV_OK, 0);
 790 #ifdef BCM_DCBNL
 791                 /*
 792                  * Send a notification for the new negotiated parameters
 793                  */
 794                 dcbnl_cee_notify(bp->dev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0);
 795 #endif
 796                 return;
 797         default:
 798                 BNX2X_ERR("Unknown DCBX_STATE\n");
 799         }
 800 }
 801
 802 #define LLDP_ADMIN_MIB_OFFSET(bp)       (PORT_MAX*sizeof(struct lldp_params) + \
 803                                       BP_PORT(bp)*sizeof(struct lldp_admin_mib))
 804
 805 static void bnx2x_dcbx_admin_mib_updated_params(struct bnx2x *bp,
 806                                 u32 dcbx_lldp_params_offset)
 807 {
 808         struct lldp_admin_mib admin_mib;
 809         u32 i, other_traf_type = PREDEFINED_APP_IDX_MAX, traf_type = 0;
 810         u32 offset = dcbx_lldp_params_offset + LLDP_ADMIN_MIB_OFFSET(bp);
 811
 812         /*shortcuts*/
 813         struct dcbx_features *af = &admin_mib.features;
 814         struct bnx2x_config_dcbx_params *dp = &bp->dcbx_config_params;
 815
 816         memset(&admin_mib, 0, sizeof(struct lldp_admin_mib));
 817
 818         /* Read the data first */
 819         bnx2x_read_data(bp, (u32 *)&admin_mib, offset,
 820                         sizeof(struct lldp_admin_mib));
 821
 822         if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON)
 823                 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED);
 824         else
 825                 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED);
 826
 827         if (dp->overwrite_settings == BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE) {
 828
 829                 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_CEE_VERSION_MASK);
 830                 admin_mib.ver_cfg_flags |=
 831                         (dp->admin_dcbx_version << DCBX_CEE_VERSION_SHIFT) &
 832                          DCBX_CEE_VERSION_MASK;
 833
 834                 af->ets.enabled = (u8)dp->admin_ets_enable;
 835
 836                 af->pfc.enabled = (u8)dp->admin_pfc_enable;
 837
 838                 /* FOR IEEE dp->admin_tc_supported_tx_enable */
 839                 if (dp->admin_ets_configuration_tx_enable)
 840                         SET_FLAGS(admin_mib.ver_cfg_flags,
 841                                   DCBX_ETS_CONFIG_TX_ENABLED);
 842                 else
 843                         RESET_FLAGS(admin_mib.ver_cfg_flags,
 844                                     DCBX_ETS_CONFIG_TX_ENABLED);
 845                 /* For IEEE admin_ets_recommendation_tx_enable */
 846                 if (dp->admin_pfc_tx_enable)
 847                         SET_FLAGS(admin_mib.ver_cfg_flags,
 848                                   DCBX_PFC_CONFIG_TX_ENABLED);
 849                 else
 850                         RESET_FLAGS(admin_mib.ver_cfg_flags,
 851                                   DCBX_PFC_CONFIG_TX_ENABLED);
 852
 853                 if (dp->admin_application_priority_tx_enable)
 854                         SET_FLAGS(admin_mib.ver_cfg_flags,
 855                                   DCBX_APP_CONFIG_TX_ENABLED);
 856                 else
 857                         RESET_FLAGS(admin_mib.ver_cfg_flags,
 858                                   DCBX_APP_CONFIG_TX_ENABLED);
 859
 860                 if (dp->admin_ets_willing)
 861                         SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING);
 862                 else
 863                         RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING);
 864                 /* For IEEE admin_ets_reco_valid */
 865                 if (dp->admin_pfc_willing)
 866                         SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING);
 867                 else
 868                         RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING);
 869
 870                 if (dp->admin_app_priority_willing)
 871                         SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING);
 872                 else
 873                         RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING);
 874
 875                 for (i = 0 ; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++) {
 876                         DCBX_PG_BW_SET(af->ets.pg_bw_tbl, i,
 877                                 (u8)dp->admin_configuration_bw_precentage[i]);
 878
 879                         DP(BNX2X_MSG_DCB, "pg_bw_tbl[%d] = %02x\n",
 880                            i, DCBX_PG_BW_GET(af->ets.pg_bw_tbl, i));
 881                 }
 882
 883                 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) {
 884                         DCBX_PRI_PG_SET(af->ets.pri_pg_tbl, i,
 885                                         (u8)dp->admin_configuration_ets_pg[i]);
 886
 887                         DP(BNX2X_MSG_DCB, "pri_pg_tbl[%d] = %02x\n",
 888                            i, DCBX_PRI_PG_GET(af->ets.pri_pg_tbl, i));
 889                 }
 890
 891                 /*For IEEE admin_recommendation_bw_percentage
 892                  *For IEEE admin_recommendation_ets_pg */
 893                 af->pfc.pri_en_bitmap = (u8)dp->admin_pfc_bitmap;
 894                 for (i = 0; i < DCBX_CONFIG_MAX_APP_PROTOCOL; i++) {
 895                         if (dp->admin_priority_app_table[i].valid) {
 896                                 struct bnx2x_admin_priority_app_table *table =
 897                                         dp->admin_priority_app_table;
 898                                 if ((ETH_TYPE_FCOE == table[i].app_id) &&
 899                                    (TRAFFIC_TYPE_ETH == table[i].traffic_type))
 900                                         traf_type = FCOE_APP_IDX;
 901                                 else if ((TCP_PORT_ISCSI == table[i].app_id) &&
 902                                    (TRAFFIC_TYPE_PORT == table[i].traffic_type))
 903                                         traf_type = ISCSI_APP_IDX;
 904                                 else
 905                                         traf_type = other_traf_type++;
 906
 907                                 af->app.app_pri_tbl[traf_type].app_id =
 908                                         table[i].app_id;
 909
 910                                 af->app.app_pri_tbl[traf_type].pri_bitmap =
 911                                         (u8)(1 << table[i].priority);
 912
 913                                 af->app.app_pri_tbl[traf_type].appBitfield =
 914                                     (DCBX_APP_ENTRY_VALID);
 915
 916                                 af->app.app_pri_tbl[traf_type].appBitfield |=
 917                                    (TRAFFIC_TYPE_ETH == table[i].traffic_type) ?
 918                                         DCBX_APP_SF_ETH_TYPE : DCBX_APP_SF_PORT;
 919                         }
 920                 }
 921
 922                 af->app.default_pri = (u8)dp->admin_default_priority;
 923         }
 924
 925         /* Write the data. */
 926         bnx2x_write_data(bp, (u32 *)&admin_mib, offset,
 927                          sizeof(struct lldp_admin_mib));
 928 }
 929
 930 void bnx2x_dcbx_set_state(struct bnx2x *bp, bool dcb_on, u32 dcbx_enabled)
 931 {
 932         if (!CHIP_IS_E1x(bp)) {
 933                 bp->dcb_state = dcb_on;
 934                 bp->dcbx_enabled = dcbx_enabled;
 935         } else {
 936                 bp->dcb_state = false;
 937                 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_INVALID;
 938         }
 939         DP(BNX2X_MSG_DCB, "DCB state [%s:%s]\n",
 940            dcb_on ? "ON" : "OFF",
 941            dcbx_enabled == BNX2X_DCBX_ENABLED_OFF ? "user-mode" :
 942            dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF ? "on-chip static" :
 943            dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON ?
 944            "on-chip with negotiation" : "invalid");
 945 }
 946
 947 void bnx2x_dcbx_init_params(struct bnx2x *bp)
 948 {
 949         bp->dcbx_config_params.admin_dcbx_version = 0x0; /* 0 - CEE; 1 - IEEE */
 950         bp->dcbx_config_params.admin_ets_willing = 1;
 951         bp->dcbx_config_params.admin_pfc_willing = 1;
 952         bp->dcbx_config_params.overwrite_settings = 1;
 953         bp->dcbx_config_params.admin_ets_enable = 1;
 954         bp->dcbx_config_params.admin_pfc_enable = 1;
 955         bp->dcbx_config_params.admin_tc_supported_tx_enable = 1;
 956         bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
 957         bp->dcbx_config_params.admin_pfc_tx_enable = 1;
 958         bp->dcbx_config_params.admin_application_priority_tx_enable = 1;
 959         bp->dcbx_config_params.admin_ets_reco_valid = 1;
 960         bp->dcbx_config_params.admin_app_priority_willing = 1;
 961         bp->dcbx_config_params.admin_configuration_bw_precentage[0] = 100;
 962         bp->dcbx_config_params.admin_configuration_bw_precentage[1] = 0;
 963         bp->dcbx_config_params.admin_configuration_bw_precentage[2] = 0;
 964         bp->dcbx_config_params.admin_configuration_bw_precentage[3] = 0;
 965         bp->dcbx_config_params.admin_configuration_bw_precentage[4] = 0;
 966         bp->dcbx_config_params.admin_configuration_bw_precentage[5] = 0;
 967         bp->dcbx_config_params.admin_configuration_bw_precentage[6] = 0;
 968         bp->dcbx_config_params.admin_configuration_bw_precentage[7] = 0;
 969         bp->dcbx_config_params.admin_configuration_ets_pg[0] = 0;
 970         bp->dcbx_config_params.admin_configuration_ets_pg[1] = 0;
 971         bp->dcbx_config_params.admin_configuration_ets_pg[2] = 0;
 972         bp->dcbx_config_params.admin_configuration_ets_pg[3] = 0;
 973         bp->dcbx_config_params.admin_configuration_ets_pg[4] = 0;
 974         bp->dcbx_config_params.admin_configuration_ets_pg[5] = 0;
 975         bp->dcbx_config_params.admin_configuration_ets_pg[6] = 0;
 976         bp->dcbx_config_params.admin_configuration_ets_pg[7] = 0;
 977         bp->dcbx_config_params.admin_recommendation_bw_precentage[0] = 100;
 978         bp->dcbx_config_params.admin_recommendation_bw_precentage[1] = 0;
 979         bp->dcbx_config_params.admin_recommendation_bw_precentage[2] = 0;
 980         bp->dcbx_config_params.admin_recommendation_bw_precentage[3] = 0;
 981         bp->dcbx_config_params.admin_recommendation_bw_precentage[4] = 0;
 982         bp->dcbx_config_params.admin_recommendation_bw_precentage[5] = 0;
 983         bp->dcbx_config_params.admin_recommendation_bw_precentage[6] = 0;
 984         bp->dcbx_config_params.admin_recommendation_bw_precentage[7] = 0;
 985         bp->dcbx_config_params.admin_recommendation_ets_pg[0] = 0;
 986         bp->dcbx_config_params.admin_recommendation_ets_pg[1] = 1;
 987         bp->dcbx_config_params.admin_recommendation_ets_pg[2] = 2;
 988         bp->dcbx_config_params.admin_recommendation_ets_pg[3] = 3;
 989         bp->dcbx_config_params.admin_recommendation_ets_pg[4] = 4;
 990         bp->dcbx_config_params.admin_recommendation_ets_pg[5] = 5;
 991         bp->dcbx_config_params.admin_recommendation_ets_pg[6] = 6;
 992         bp->dcbx_config_params.admin_recommendation_ets_pg[7] = 7;
 993         bp->dcbx_config_params.admin_pfc_bitmap = 0x0;
 994         bp->dcbx_config_params.admin_priority_app_table[0].valid = 0;
 995         bp->dcbx_config_params.admin_priority_app_table[1].valid = 0;
 996         bp->dcbx_config_params.admin_priority_app_table[2].valid = 0;
 997         bp->dcbx_config_params.admin_priority_app_table[3].valid = 0;
 998         bp->dcbx_config_params.admin_default_priority = 0;
 999 }
1000
1001 void bnx2x_dcbx_init(struct bnx2x *bp, bool update_shmem)
1002 {
1003         u32 dcbx_lldp_params_offset = SHMEM_LLDP_DCBX_PARAMS_NONE;
1004
1005         /* only PMF can send ADMIN msg to MFW in old MFW versions */
1006         if ((!bp->port.pmf) && (!(bp->flags & BC_SUPPORTS_DCBX_MSG_NON_PMF)))
1007                 return;
1008
1009         if (bp->dcbx_enabled <= 0)
1010                 return;
1011
1012         /* validate:
1013          * chip of good for dcbx version,
1014          * dcb is wanted
1015          * shmem2 contains DCBX support fields
1016          */
1017         DP(BNX2X_MSG_DCB, "dcb_state %d bp->port.pmf %d\n",
1018            bp->dcb_state, bp->port.pmf);
1019
1020         if (bp->dcb_state == BNX2X_DCB_STATE_ON &&
1021             SHMEM2_HAS(bp, dcbx_lldp_params_offset)) {
1022                 dcbx_lldp_params_offset =
1023                         SHMEM2_RD(bp, dcbx_lldp_params_offset);
1024
1025                 DP(BNX2X_MSG_DCB, "dcbx_lldp_params_offset 0x%x\n",
1026                    dcbx_lldp_params_offset);
1027
1028                 bnx2x_update_drv_flags(bp, 1 << DRV_FLAGS_DCB_CONFIGURED, 0);
1029
1030                 if (SHMEM_LLDP_DCBX_PARAMS_NONE != dcbx_lldp_params_offset) {
1031                         /* need HW lock to avoid scenario of two drivers
1032                          * writing in parallel to shmem
1033                          */
1034                         bnx2x_acquire_hw_lock(bp,
1035                                               HW_LOCK_RESOURCE_DCBX_ADMIN_MIB);
1036                         if (update_shmem)
1037                                 bnx2x_dcbx_admin_mib_updated_params(bp,
1038                                         dcbx_lldp_params_offset);
1039
1040                         /* Let HW start negotiation */
1041                         bnx2x_fw_command(bp,
1042                                          DRV_MSG_CODE_DCBX_ADMIN_PMF_MSG, 0);
1043                         /* release HW lock only after MFW acks that it finished
1044                          * reading values from shmem
1045                          */
1046                         bnx2x_release_hw_lock(bp,
1047                                               HW_LOCK_RESOURCE_DCBX_ADMIN_MIB);
1048                 }
1049         }
1050 }
1051 static void
1052 bnx2x_dcbx_print_cos_params(struct bnx2x *bp,
1053                             struct bnx2x_func_tx_start_params *pfc_fw_cfg)
1054 {
1055         u8 pri = 0;
1056         u8 cos = 0;
1057
1058         DP(BNX2X_MSG_DCB,
1059            "pfc_fw_cfg->dcb_version %x\n", pfc_fw_cfg->dcb_version);
1060         DP(BNX2X_MSG_DCB,
1061            "pdev->params.dcbx_port_params.pfc.priority_non_pauseable_mask %x\n",
1062            bp->dcbx_port_params.pfc.priority_non_pauseable_mask);
1063
1064         for (cos = 0 ; cos < bp->dcbx_port_params.ets.num_of_cos ; cos++) {
1065                 DP(BNX2X_MSG_DCB,
1066                    "pdev->params.dcbx_port_params.ets.cos_params[%d].pri_bitmask %x\n",
1067                    cos, bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask);
1068
1069                 DP(BNX2X_MSG_DCB,
1070                    "pdev->params.dcbx_port_params.ets.cos_params[%d].bw_tbl %x\n",
1071                    cos, bp->dcbx_port_params.ets.cos_params[cos].bw_tbl);
1072
1073                 DP(BNX2X_MSG_DCB,
1074                    "pdev->params.dcbx_port_params.ets.cos_params[%d].strict %x\n",
1075                    cos, bp->dcbx_port_params.ets.cos_params[cos].strict);
1076
1077                 DP(BNX2X_MSG_DCB,
1078                    "pdev->params.dcbx_port_params.ets.cos_params[%d].pauseable %x\n",
1079                    cos, bp->dcbx_port_params.ets.cos_params[cos].pauseable);
1080         }
1081
1082         for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) {
1083                 DP(BNX2X_MSG_DCB,
1084                    "pfc_fw_cfg->traffic_type_to_priority_cos[%d].priority %x\n",
1085                    pri, pfc_fw_cfg->traffic_type_to_priority_cos[pri].priority);
1086
1087                 DP(BNX2X_MSG_DCB,
1088                    "pfc_fw_cfg->traffic_type_to_priority_cos[%d].cos %x\n",
1089                    pri, pfc_fw_cfg->traffic_type_to_priority_cos[pri].cos);
1090         }
1091 }
1092
1093 /* fills help_data according to pg_info */
1094 static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp,
1095                                             u32 *pg_pri_orginal_spread,
1096                                             struct pg_help_data *help_data)
1097 {
1098         bool pg_found  = false;
1099         u32 i, traf_type, add_traf_type, add_pg;
1100         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1101         struct pg_entry_help_data *data = help_data->data; /*shortcut*/
1102
1103         /* Set to invalid */
1104         for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++)
1105                 data[i].pg = DCBX_ILLEGAL_PG;
1106
1107         for (add_traf_type = 0;
1108              add_traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX; add_traf_type++) {
1109                 pg_found = false;
1110                 if (ttp[add_traf_type] < MAX_PFC_PRIORITIES) {
1111                         add_pg = (u8)pg_pri_orginal_spread[ttp[add_traf_type]];
1112                         for (traf_type = 0;
1113                              traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1114                              traf_type++) {
1115                                 if (data[traf_type].pg == add_pg) {
1116                                         if (!(data[traf_type].pg_priority &
1117                                              (1 << ttp[add_traf_type])))
1118                                                 data[traf_type].
1119                                                         num_of_dif_pri++;
1120                                         data[traf_type].pg_priority |=
1121                                                 (1 << ttp[add_traf_type]);
1122                                         pg_found = true;
1123                                         break;
1124                                 }
1125                         }
1126                         if (false == pg_found) {
1127                                 data[help_data->num_of_pg].pg = add_pg;
1128                                 data[help_data->num_of_pg].pg_priority =
1129                                                 (1 << ttp[add_traf_type]);
1130                                 data[help_data->num_of_pg].num_of_dif_pri = 1;
1131                                 help_data->num_of_pg++;
1132                         }
1133                 }
1134                 DP(BNX2X_MSG_DCB,
1135                    "add_traf_type %d pg_found %s num_of_pg %d\n",
1136                    add_traf_type, (false == pg_found) ? "NO" : "YES",
1137                    help_data->num_of_pg);
1138         }
1139 }
1140
1141 static void bnx2x_dcbx_ets_disabled_entry_data(struct bnx2x *bp,
1142                                                struct cos_help_data *cos_data,
1143                                                u32 pri_join_mask)
1144 {
1145         /* Only one priority than only one COS */
1146         cos_data->data[0].pausable =
1147                 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1148         cos_data->data[0].pri_join_mask = pri_join_mask;
1149         cos_data->data[0].cos_bw = 100;
1150         cos_data->num_of_cos = 1;
1151 }
1152
1153 static inline void bnx2x_dcbx_add_to_cos_bw(struct bnx2x *bp,
1154                                             struct cos_entry_help_data *data,
1155                                             u8 pg_bw)
1156 {
1157         if (data->cos_bw == DCBX_INVALID_COS_BW)
1158                 data->cos_bw = pg_bw;
1159         else
1160                 data->cos_bw += pg_bw;
1161 }
1162
1163 static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp,
1164                         struct cos_help_data *cos_data,
1165                         u32 *pg_pri_orginal_spread,
1166                         struct dcbx_ets_feature *ets)
1167 {
1168         u32     pri_tested      = 0;
1169         u8      i               = 0;
1170         u8      entry           = 0;
1171         u8      pg_entry        = 0;
1172         u8      num_of_pri      = LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1173
1174         cos_data->data[0].pausable = true;
1175         cos_data->data[1].pausable = false;
1176         cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0;
1177
1178         for (i = 0 ; i < num_of_pri ; i++) {
1179                 pri_tested = 1 << bp->dcbx_port_params.
1180                                         app.traffic_type_priority[i];
1181
1182                 if (pri_tested & DCBX_PFC_PRI_NON_PAUSE_MASK(bp)) {
1183                         cos_data->data[1].pri_join_mask |= pri_tested;
1184                         entry = 1;
1185                 } else {
1186                         cos_data->data[0].pri_join_mask |= pri_tested;
1187                         entry = 0;
1188                 }
1189                 pg_entry = (u8)pg_pri_orginal_spread[bp->dcbx_port_params.
1190                                                 app.traffic_type_priority[i]];
1191                 /* There can be only one strict pg */
1192                 if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES)
1193                         bnx2x_dcbx_add_to_cos_bw(bp, &cos_data->data[entry],
1194                                 DCBX_PG_BW_GET(ets->pg_bw_tbl, pg_entry));
1195                 else
1196                         /* If we join a group and one is strict
1197                          * than the bw rules
1198                          */
1199                         cos_data->data[entry].strict =
1200                                                 BNX2X_DCBX_STRICT_COS_HIGHEST;
1201         }
1202         if ((0 == cos_data->data[0].pri_join_mask) &&
1203             (0 == cos_data->data[1].pri_join_mask))
1204                 BNX2X_ERR("dcbx error: Both groups must have priorities\n");
1205 }
1206
1207 #ifndef POWER_OF_2
1208 #define POWER_OF_2(x)   ((0 != x) && (0 == (x & (x-1))))
1209 #endif
1210
1211 static void bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params(struct bnx2x *bp,
1212                                               struct pg_help_data *pg_help_data,
1213                                               struct cos_help_data *cos_data,
1214                                               u32 pri_join_mask,
1215                                               u8 num_of_dif_pri)
1216 {
1217         u8 i = 0;
1218         u32 pri_tested = 0;
1219         u32 pri_mask_without_pri = 0;
1220         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1221         /*debug*/
1222         if (num_of_dif_pri == 1) {
1223                 bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data, pri_join_mask);
1224                 return;
1225         }
1226         /* single priority group */
1227         if (pg_help_data->data[0].pg < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1228                 /* If there are both pauseable and non-pauseable priorities,
1229                  * the pauseable priorities go to the first queue and
1230                  * the non-pauseable priorities go to the second queue.
1231                  */
1232                 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1233                         /* Pauseable */
1234                         cos_data->data[0].pausable = true;
1235                         /* Non pauseable.*/
1236                         cos_data->data[1].pausable = false;
1237
1238                         if (2 == num_of_dif_pri) {
1239                                 cos_data->data[0].cos_bw = 50;
1240                                 cos_data->data[1].cos_bw = 50;
1241                         }
1242
1243                         if (3 == num_of_dif_pri) {
1244                                 if (POWER_OF_2(DCBX_PFC_PRI_GET_PAUSE(bp,
1245                                                         pri_join_mask))) {
1246                                         cos_data->data[0].cos_bw = 33;
1247                                         cos_data->data[1].cos_bw = 67;
1248                                 } else {
1249                                         cos_data->data[0].cos_bw = 67;
1250                                         cos_data->data[1].cos_bw = 33;
1251                                 }
1252                         }
1253
1254                 } else if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask)) {
1255                         /* If there are only pauseable priorities,
1256                          * then one/two priorities go to the first queue
1257                          * and one priority goes to the second queue.
1258                          */
1259                         if (2 == num_of_dif_pri) {
1260                                 cos_data->data[0].cos_bw = 50;
1261                                 cos_data->data[1].cos_bw = 50;
1262                         } else {
1263                                 cos_data->data[0].cos_bw = 67;
1264                                 cos_data->data[1].cos_bw = 33;
1265                         }
1266                         cos_data->data[1].pausable = true;
1267                         cos_data->data[0].pausable = true;
1268                         /* All priorities except FCOE */
1269                         cos_data->data[0].pri_join_mask = (pri_join_mask &
1270                                 ((u8)~(1 << ttp[LLFC_TRAFFIC_TYPE_FCOE])));
1271                         /* Only FCOE priority.*/
1272                         cos_data->data[1].pri_join_mask =
1273                                 (1 << ttp[LLFC_TRAFFIC_TYPE_FCOE]);
1274                 } else
1275                         /* If there are only non-pauseable priorities,
1276                          * they will all go to the same queue.
1277                          */
1278                         bnx2x_dcbx_ets_disabled_entry_data(bp,
1279                                                 cos_data, pri_join_mask);
1280         } else {
1281                 /* priority group which is not BW limited (PG#15):*/
1282                 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1283                         /* If there are both pauseable and non-pauseable
1284                          * priorities, the pauseable priorities go to the first
1285                          * queue and the non-pauseable priorities
1286                          * go to the second queue.
1287                          */
1288                         if (DCBX_PFC_PRI_GET_PAUSE(bp, pri_join_mask) >
1289                             DCBX_PFC_PRI_GET_NON_PAUSE(bp, pri_join_mask)) {
1290                                 cos_data->data[0].strict =
1291                                         BNX2X_DCBX_STRICT_COS_HIGHEST;
1292                                 cos_data->data[1].strict =
1293                                         BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
1294                                                 BNX2X_DCBX_STRICT_COS_HIGHEST);
1295                         } else {
1296                                 cos_data->data[0].strict =
1297                                         BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
1298                                                 BNX2X_DCBX_STRICT_COS_HIGHEST);
1299                                 cos_data->data[1].strict =
1300                                         BNX2X_DCBX_STRICT_COS_HIGHEST;
1301                         }
1302                         /* Pauseable */
1303                         cos_data->data[0].pausable = true;
1304                         /* Non pause-able.*/
1305                         cos_data->data[1].pausable = false;
1306                 } else {
1307                         /* If there are only pauseable priorities or
1308                          * only non-pauseable,* the lower priorities go
1309                          * to the first queue and the higher priorities go
1310                          * to the second queue.
1311                          */
1312                         cos_data->data[0].pausable =
1313                                 cos_data->data[1].pausable =
1314                                 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1315
1316                         for (i = 0 ; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++) {
1317                                 pri_tested = 1 << bp->dcbx_port_params.
1318                                         app.traffic_type_priority[i];
1319                                 /* Remove priority tested */
1320                                 pri_mask_without_pri =
1321                                         (pri_join_mask & ((u8)(~pri_tested)));
1322                                 if (pri_mask_without_pri < pri_tested)
1323                                         break;
1324                         }
1325
1326                         if (i == LLFC_DRIVER_TRAFFIC_TYPE_MAX)
1327                                 BNX2X_ERR("Invalid value for pri_join_mask - could not find a priority\n");
1328
1329                         cos_data->data[0].pri_join_mask = pri_mask_without_pri;
1330                         cos_data->data[1].pri_join_mask = pri_tested;
1331                         /* Both queues are strict priority,
1332                          * and that with the highest priority
1333                          * gets the highest strict priority in the arbiter.
1334                          */
1335                         cos_data->data[0].strict =
1336                                         BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
1337                                                 BNX2X_DCBX_STRICT_COS_HIGHEST);
1338                         cos_data->data[1].strict =
1339                                         BNX2X_DCBX_STRICT_COS_HIGHEST;
1340                 }
1341         }
1342 }
1343
1344 static void bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params(
1345                             struct bnx2x                *bp,
1346                             struct  pg_help_data        *pg_help_data,
1347                             struct dcbx_ets_feature     *ets,
1348                             struct cos_help_data        *cos_data,
1349                             u32                 *pg_pri_orginal_spread,
1350                             u32                         pri_join_mask,
1351                             u8                          num_of_dif_pri)
1352 {
1353         u8 i = 0;
1354         u8 pg[DCBX_COS_MAX_NUM_E2] = { 0 };
1355
1356         /* If there are both pauseable and non-pauseable priorities,
1357          * the pauseable priorities go to the first queue and
1358          * the non-pauseable priorities go to the second queue.
1359          */
1360         if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1361                 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp,
1362                                          pg_help_data->data[0].pg_priority) ||
1363                     IS_DCBX_PFC_PRI_MIX_PAUSE(bp,
1364                                          pg_help_data->data[1].pg_priority)) {
1365                         /* If one PG contains both pauseable and
1366                          * non-pauseable priorities then ETS is disabled.
1367                          */
1368                         bnx2x_dcbx_separate_pauseable_from_non(bp, cos_data,
1369                                         pg_pri_orginal_spread, ets);
1370                         bp->dcbx_port_params.ets.enabled = false;
1371                         return;
1372                 }
1373
1374                 /* Pauseable */
1375                 cos_data->data[0].pausable = true;
1376                 /* Non pauseable. */
1377                 cos_data->data[1].pausable = false;
1378                 if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp,
1379                                 pg_help_data->data[0].pg_priority)) {
1380                         /* 0 is pauseable */
1381                         cos_data->data[0].pri_join_mask =
1382                                 pg_help_data->data[0].pg_priority;
1383                         pg[0] = pg_help_data->data[0].pg;
1384                         cos_data->data[1].pri_join_mask =
1385                                 pg_help_data->data[1].pg_priority;
1386                         pg[1] = pg_help_data->data[1].pg;
1387                 } else {/* 1 is pauseable */
1388                         cos_data->data[0].pri_join_mask =
1389                                 pg_help_data->data[1].pg_priority;
1390                         pg[0] = pg_help_data->data[1].pg;
1391                         cos_data->data[1].pri_join_mask =
1392                                 pg_help_data->data[0].pg_priority;
1393                         pg[1] = pg_help_data->data[0].pg;
1394                 }
1395         } else {
1396                 /* If there are only pauseable priorities or
1397                  * only non-pauseable, each PG goes to a queue.
1398                  */
1399                 cos_data->data[0].pausable = cos_data->data[1].pausable =
1400                         IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1401                 cos_data->data[0].pri_join_mask =
1402                         pg_help_data->data[0].pg_priority;
1403                 pg[0] = pg_help_data->data[0].pg;
1404                 cos_data->data[1].pri_join_mask =
1405                         pg_help_data->data[1].pg_priority;
1406                 pg[1] = pg_help_data->data[1].pg;
1407         }
1408
1409         /* There can be only one strict pg */
1410         for (i = 0 ; i < ARRAY_SIZE(pg); i++) {
1411                 if (pg[i] < DCBX_MAX_NUM_PG_BW_ENTRIES)
1412                         cos_data->data[i].cos_bw =
1413                                 DCBX_PG_BW_GET(ets->pg_bw_tbl, pg[i]);
1414                 else
1415                         cos_data->data[i].strict =
1416                                                 BNX2X_DCBX_STRICT_COS_HIGHEST;
1417         }
1418 }
1419
1420 static int bnx2x_dcbx_join_pgs(
1421                               struct bnx2x            *bp,
1422                               struct dcbx_ets_feature *ets,
1423                               struct pg_help_data     *pg_help_data,
1424                               u8                      required_num_of_pg)
1425 {
1426         u8 entry_joined    = pg_help_data->num_of_pg - 1;
1427         u8 entry_removed   = entry_joined + 1;
1428         u8 pg_joined       = 0;
1429
1430         if (required_num_of_pg == 0 || ARRAY_SIZE(pg_help_data->data)
1431                                                 <= pg_help_data->num_of_pg) {
1432
1433                 BNX2X_ERR("required_num_of_pg can't be zero\n");
1434                 return -EINVAL;
1435         }
1436
1437         while (required_num_of_pg < pg_help_data->num_of_pg) {
1438                 entry_joined = pg_help_data->num_of_pg - 2;
1439                 entry_removed = entry_joined + 1;
1440                 /* protect index */
1441                 entry_removed %= ARRAY_SIZE(pg_help_data->data);
1442
1443                 pg_help_data->data[entry_joined].pg_priority |=
1444                         pg_help_data->data[entry_removed].pg_priority;
1445
1446                 pg_help_data->data[entry_joined].num_of_dif_pri +=
1447                         pg_help_data->data[entry_removed].num_of_dif_pri;
1448
1449                 if (pg_help_data->data[entry_joined].pg == DCBX_STRICT_PRI_PG ||
1450                     pg_help_data->data[entry_removed].pg == DCBX_STRICT_PRI_PG)
1451                         /* Entries joined strict priority rules */
1452                         pg_help_data->data[entry_joined].pg =
1453                                                         DCBX_STRICT_PRI_PG;
1454                 else {
1455                         /* Entries can be joined join BW */
1456                         pg_joined = DCBX_PG_BW_GET(ets->pg_bw_tbl,
1457                                         pg_help_data->data[entry_joined].pg) +
1458                                     DCBX_PG_BW_GET(ets->pg_bw_tbl,
1459                                         pg_help_data->data[entry_removed].pg);
1460
1461                         DCBX_PG_BW_SET(ets->pg_bw_tbl,
1462                                 pg_help_data->data[entry_joined].pg, pg_joined);
1463                 }
1464                 /* Joined the entries */
1465                 pg_help_data->num_of_pg--;
1466         }
1467
1468         return 0;
1469 }
1470
1471 static void bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params(
1472                               struct bnx2x              *bp,
1473                               struct pg_help_data       *pg_help_data,
1474                               struct dcbx_ets_feature   *ets,
1475                               struct cos_help_data      *cos_data,
1476                               u32                       *pg_pri_orginal_spread,
1477                               u32                       pri_join_mask,
1478                               u8                        num_of_dif_pri)
1479 {
1480         u8 i = 0;
1481         u32 pri_tested = 0;
1482         u8 entry = 0;
1483         u8 pg_entry = 0;
1484         bool b_found_strict = false;
1485         u8 num_of_pri = LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1486
1487         cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0;
1488         /* If there are both pauseable and non-pauseable priorities,
1489          * the pauseable priorities go to the first queue and the
1490          * non-pauseable priorities go to the second queue.
1491          */
1492         if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask))
1493                 bnx2x_dcbx_separate_pauseable_from_non(bp,
1494                                 cos_data, pg_pri_orginal_spread, ets);
1495         else {
1496                 /* If two BW-limited PG-s were combined to one queue,
1497                  * the BW is their sum.
1498                  *
1499                  * If there are only pauseable priorities or only non-pauseable,
1500                  * and there are both BW-limited and non-BW-limited PG-s,
1501                  * the BW-limited PG/s go to one queue and the non-BW-limited
1502                  * PG/s go to the second queue.
1503                  *
1504                  * If there are only pauseable priorities or only non-pauseable
1505                  * and all are BW limited, then two priorities go to the first
1506                  * queue and one priority goes to the second queue.
1507                  *
1508                  * We will join this two cases:
1509                  * if one is BW limited it will go to the second queue
1510                  * otherwise the last priority will get it
1511                  */
1512
1513                 cos_data->data[0].pausable = cos_data->data[1].pausable =
1514                         IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1515
1516                 for (i = 0 ; i < num_of_pri; i++) {
1517                         pri_tested = 1 << bp->dcbx_port_params.
1518                                 app.traffic_type_priority[i];
1519                         pg_entry = (u8)pg_pri_orginal_spread[bp->
1520                                 dcbx_port_params.app.traffic_type_priority[i]];
1521
1522                         if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1523                                 entry = 0;
1524
1525                                 if (i == (num_of_pri-1) &&
1526                                     false == b_found_strict)
1527                                         /* last entry will be handled separately
1528                                          * If no priority is strict than last
1529                                          * entry goes to last queue.
1530                                          */
1531                                         entry = 1;
1532                                 cos_data->data[entry].pri_join_mask |=
1533                                                                 pri_tested;
1534                                 bnx2x_dcbx_add_to_cos_bw(bp,
1535                                         &cos_data->data[entry],
1536                                         DCBX_PG_BW_GET(ets->pg_bw_tbl,
1537                                                        pg_entry));
1538                         } else {
1539                                 b_found_strict = true;
1540                                 cos_data->data[1].pri_join_mask |= pri_tested;
1541                                 /* If we join a group and one is strict
1542                                  * than the bw rules
1543                                  */
1544                                 cos_data->data[1].strict =
1545                                         BNX2X_DCBX_STRICT_COS_HIGHEST;
1546                         }
1547                 }
1548         }
1549 }
1550
1551 static void bnx2x_dcbx_2cos_limit_cee_fill_cos_params(struct bnx2x *bp,
1552                                        struct pg_help_data *help_data,
1553                                        struct dcbx_ets_feature *ets,
1554                                        struct cos_help_data *cos_data,
1555                                        u32 *pg_pri_orginal_spread,
1556                                        u32 pri_join_mask,
1557                                        u8 num_of_dif_pri)
1558 {
1559         /* default E2 settings */
1560         cos_data->num_of_cos = DCBX_COS_MAX_NUM_E2;
1561
1562         switch (help_data->num_of_pg) {
1563         case 1:
1564                 bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params(
1565                                                bp,
1566                                                help_data,
1567                                                cos_data,
1568                                                pri_join_mask,
1569                                                num_of_dif_pri);
1570                 break;
1571         case 2:
1572                 bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params(
1573                                             bp,
1574                                             help_data,
1575                                             ets,
1576                                             cos_data,
1577                                             pg_pri_orginal_spread,
1578                                             pri_join_mask,
1579                                             num_of_dif_pri);
1580                 break;
1581
1582         case 3:
1583                 bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params(
1584                                               bp,
1585                                               help_data,
1586                                               ets,
1587                                               cos_data,
1588                                               pg_pri_orginal_spread,
1589                                               pri_join_mask,
1590                                               num_of_dif_pri);
1591                 break;
1592         default:
1593                 BNX2X_ERR("Wrong pg_help_data.num_of_pg\n");
1594                 bnx2x_dcbx_ets_disabled_entry_data(bp,
1595                                                    cos_data, pri_join_mask);
1596         }
1597 }
1598
1599 static int bnx2x_dcbx_spread_strict_pri(struct bnx2x *bp,
1600                                         struct cos_help_data *cos_data,
1601                                         u8 entry,
1602                                         u8 num_spread_of_entries,
1603                                         u8 strict_app_pris)
1604 {
1605         u8 strict_pri = BNX2X_DCBX_STRICT_COS_HIGHEST;
1606         u8 num_of_app_pri = MAX_PFC_PRIORITIES;
1607         u8 app_pri_bit = 0;
1608
1609         while (num_spread_of_entries && num_of_app_pri > 0) {
1610                 app_pri_bit = 1 << (num_of_app_pri - 1);
1611                 if (app_pri_bit & strict_app_pris) {
1612                         struct cos_entry_help_data *data = &cos_data->
1613                                                                 data[entry];
1614                         num_spread_of_entries--;
1615                         if (num_spread_of_entries == 0) {
1616                                 /* last entry needed put all the entries left */
1617                                 data->cos_bw = DCBX_INVALID_COS_BW;
1618                                 data->strict = strict_pri;
1619                                 data->pri_join_mask = strict_app_pris;
1620                                 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1621                                                         data->pri_join_mask);
1622                         } else {
1623                                 strict_app_pris &= ~app_pri_bit;
1624
1625                                 data->cos_bw = DCBX_INVALID_COS_BW;
1626                                 data->strict = strict_pri;
1627                                 data->pri_join_mask = app_pri_bit;
1628                                 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1629                                                         data->pri_join_mask);
1630                         }
1631
1632                         strict_pri =
1633                             BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(strict_pri);
1634                         entry++;
1635                 }
1636
1637                 num_of_app_pri--;
1638         }
1639
1640         if (num_spread_of_entries) {
1641                 BNX2X_ERR("Didn't succeed to spread strict priorities\n");
1642                 return -EINVAL;
1643         }
1644
1645         return 0;
1646 }
1647
1648 static u8 bnx2x_dcbx_cee_fill_strict_pri(struct bnx2x *bp,
1649                                          struct cos_help_data *cos_data,
1650                                          u8 entry,
1651                                          u8 num_spread_of_entries,
1652                                          u8 strict_app_pris)
1653 {
1654         if (bnx2x_dcbx_spread_strict_pri(bp, cos_data, entry,
1655                                          num_spread_of_entries,
1656                                          strict_app_pris)) {
1657                 struct cos_entry_help_data *data = &cos_data->
1658                                                     data[entry];
1659                 /* Fill BW entry */
1660                 data->cos_bw = DCBX_INVALID_COS_BW;
1661                 data->strict = BNX2X_DCBX_STRICT_COS_HIGHEST;
1662                 data->pri_join_mask = strict_app_pris;
1663                 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1664                                  data->pri_join_mask);
1665                 return 1;
1666         }
1667
1668         return num_spread_of_entries;
1669 }
1670
1671 static void bnx2x_dcbx_cee_fill_cos_params(struct bnx2x *bp,
1672                                            struct pg_help_data *help_data,
1673                                            struct dcbx_ets_feature *ets,
1674                                            struct cos_help_data *cos_data,
1675                                            u32 pri_join_mask)
1676
1677 {
1678         u8 need_num_of_entries = 0;
1679         u8 i = 0;
1680         u8 entry = 0;
1681
1682         /*
1683          * if the number of requested PG-s in CEE is greater than 3
1684          * then the results are not determined since this is a violation
1685          * of the standard.
1686          */
1687         if (help_data->num_of_pg > DCBX_COS_MAX_NUM_E3B0) {
1688                 if (bnx2x_dcbx_join_pgs(bp, ets, help_data,
1689                                         DCBX_COS_MAX_NUM_E3B0)) {
1690                         BNX2X_ERR("Unable to reduce the number of PGs - we will disables ETS\n");
1691                         bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data,
1692                                                            pri_join_mask);
1693                         return;
1694                 }
1695         }
1696
1697         for (i = 0 ; i < help_data->num_of_pg; i++) {
1698                 struct pg_entry_help_data *pg =  &help_data->data[i];
1699                 if (pg->pg < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1700                         struct cos_entry_help_data *data = &cos_data->
1701                                                             data[entry];
1702                         /* Fill BW entry */
1703                         data->cos_bw = DCBX_PG_BW_GET(ets->pg_bw_tbl, pg->pg);
1704                         data->strict = BNX2X_DCBX_STRICT_INVALID;
1705                         data->pri_join_mask = pg->pg_priority;
1706                         data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1707                                                 data->pri_join_mask);
1708
1709                         entry++;
1710                 } else {
1711                         need_num_of_entries =  min_t(u8,
1712                                 (u8)pg->num_of_dif_pri,
1713                                 (u8)DCBX_COS_MAX_NUM_E3B0 -
1714                                                  help_data->num_of_pg + 1);
1715                         /*
1716                          * If there are still VOQ-s which have no associated PG,
1717                          * then associate these VOQ-s to PG15. These PG-s will
1718                          * be used for SP between priorities on PG15.
1719                          */
1720                         entry += bnx2x_dcbx_cee_fill_strict_pri(bp, cos_data,
1721                                 entry, need_num_of_entries, pg->pg_priority);
1722                 }
1723         }
1724
1725         /* the entry will represent the number of COSes used */
1726         cos_data->num_of_cos = entry;
1727 }
1728 static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp,
1729                                        struct pg_help_data *help_data,
1730                                        struct dcbx_ets_feature *ets,
1731                                        u32 *pg_pri_orginal_spread)
1732 {
1733         struct cos_help_data         cos_data;
1734         u8                    i                           = 0;
1735         u32                   pri_join_mask               = 0;
1736         u8                    num_of_dif_pri              = 0;
1737
1738         memset(&cos_data, 0, sizeof(cos_data));
1739
1740         /* Validate the pg value */
1741         for (i = 0; i < help_data->num_of_pg ; i++) {
1742                 if (DCBX_STRICT_PRIORITY != help_data->data[i].pg &&
1743                     DCBX_MAX_NUM_PG_BW_ENTRIES <= help_data->data[i].pg)
1744                         BNX2X_ERR("Invalid pg[%d] data %x\n", i,
1745                                   help_data->data[i].pg);
1746                 pri_join_mask   |=  help_data->data[i].pg_priority;
1747                 num_of_dif_pri  += help_data->data[i].num_of_dif_pri;
1748         }
1749
1750         /* defaults */
1751         cos_data.num_of_cos = 1;
1752         for (i = 0; i < ARRAY_SIZE(cos_data.data); i++) {
1753                 cos_data.data[i].pri_join_mask = 0;
1754                 cos_data.data[i].pausable = false;
1755                 cos_data.data[i].strict = BNX2X_DCBX_STRICT_INVALID;
1756                 cos_data.data[i].cos_bw = DCBX_INVALID_COS_BW;
1757         }
1758
1759         if (CHIP_IS_E3B0(bp))
1760                 bnx2x_dcbx_cee_fill_cos_params(bp, help_data, ets,
1761                                                &cos_data, pri_join_mask);
1762         else /* E2 + E3A0 */
1763                 bnx2x_dcbx_2cos_limit_cee_fill_cos_params(bp,
1764                                                           help_data, ets,
1765                                                           &cos_data,
1766                                                           pg_pri_orginal_spread,
1767                                                           pri_join_mask,
1768                                                           num_of_dif_pri);
1769
1770         for (i = 0; i < cos_data.num_of_cos ; i++) {
1771                 struct bnx2x_dcbx_cos_params *p =
1772                         &bp->dcbx_port_params.ets.cos_params[i];
1773
1774                 p->strict = cos_data.data[i].strict;
1775                 p->bw_tbl = cos_data.data[i].cos_bw;
1776                 p->pri_bitmask = cos_data.data[i].pri_join_mask;
1777                 p->pauseable = cos_data.data[i].pausable;
1778
1779                 /* sanity */
1780                 if (p->bw_tbl != DCBX_INVALID_COS_BW ||
1781                     p->strict != BNX2X_DCBX_STRICT_INVALID) {
1782                         if (p->pri_bitmask == 0)
1783                                 BNX2X_ERR("Invalid pri_bitmask for %d\n", i);
1784
1785                         if (CHIP_IS_E2(bp) || CHIP_IS_E3A0(bp)) {
1786
1787                                 if (p->pauseable &&
1788                                     DCBX_PFC_PRI_GET_NON_PAUSE(bp,
1789                                                 p->pri_bitmask) != 0)
1790                                         BNX2X_ERR("Inconsistent config for pausable COS %d\n",
1791                                                   i);
1792
1793                                 if (!p->pauseable &&
1794                                     DCBX_PFC_PRI_GET_PAUSE(bp,
1795                                                 p->pri_bitmask) != 0)
1796                                         BNX2X_ERR("Inconsistent config for nonpausable COS %d\n",
1797                                                   i);
1798                         }
1799                 }
1800
1801                 if (p->pauseable)
1802                         DP(BNX2X_MSG_DCB, "COS %d PAUSABLE prijoinmask 0x%x\n",
1803                                   i, cos_data.data[i].pri_join_mask);
1804                 else
1805                         DP(BNX2X_MSG_DCB,
1806                            "COS %d NONPAUSABLE prijoinmask 0x%x\n",
1807                            i, cos_data.data[i].pri_join_mask);
1808         }
1809
1810         bp->dcbx_port_params.ets.num_of_cos = cos_data.num_of_cos ;
1811 }
1812
1813 static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp,
1814                                 u32 *set_configuration_ets_pg,
1815                                 u32 *pri_pg_tbl)
1816 {
1817         int i;
1818
1819         for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) {
1820                 set_configuration_ets_pg[i] = DCBX_PRI_PG_GET(pri_pg_tbl, i);
1821
1822                 DP(BNX2X_MSG_DCB, "set_configuration_ets_pg[%d] = 0x%x\n",
1823                    i, set_configuration_ets_pg[i]);
1824         }
1825 }
1826
1827 static void bnx2x_dcbx_fw_struct(struct bnx2x *bp,
1828                                  struct bnx2x_func_tx_start_params *pfc_fw_cfg)
1829 {
1830         u16 pri_bit = 0;
1831         u8 cos = 0, pri = 0;
1832         struct priority_cos *tt2cos;
1833         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1834         int mfw_configured = SHMEM2_HAS(bp, drv_flags) &&
1835                              GET_FLAGS(SHMEM2_RD(bp, drv_flags),
1836                                        1 << DRV_FLAGS_DCB_MFW_CONFIGURED);
1837
1838         memset(pfc_fw_cfg, 0, sizeof(*pfc_fw_cfg));
1839
1840         /* to disable DCB - the structure must be zeroed */
1841         if ((bp->dcbx_error & DCBX_REMOTE_MIB_ERROR) && !mfw_configured)
1842                 return;
1843
1844         /*shortcut*/
1845         tt2cos = pfc_fw_cfg->traffic_type_to_priority_cos;
1846
1847         /* Fw version should be incremented each update */
1848         pfc_fw_cfg->dcb_version = ++bp->dcb_version;
1849         pfc_fw_cfg->dcb_enabled = 1;
1850
1851         /* Fill priority parameters */
1852         for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) {
1853                 tt2cos[pri].priority = ttp[pri];
1854                 pri_bit = 1 << tt2cos[pri].priority;
1855
1856                 /* Fill COS parameters based on COS calculated to
1857                  * make it more general for future use */
1858                 for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++)
1859                         if (bp->dcbx_port_params.ets.cos_params[cos].
1860                                                 pri_bitmask & pri_bit)
1861                                         tt2cos[pri].cos = cos;
1862         }
1863
1864         /* we never want the FW to add a 0 vlan tag */
1865         pfc_fw_cfg->dont_add_pri_0_en = 1;
1866
1867         bnx2x_dcbx_print_cos_params(bp, pfc_fw_cfg);
1868 }
1869
1870 void bnx2x_dcbx_pmf_update(struct bnx2x *bp)
1871 {
1872         /* if we need to synchronize DCBX result from prev PMF
1873          * read it from shmem and update bp and netdev accordingly
1874          */
1875         if (SHMEM2_HAS(bp, drv_flags) &&
1876            GET_FLAGS(SHMEM2_RD(bp, drv_flags), 1 << DRV_FLAGS_DCB_CONFIGURED)) {
1877                 /* Read neg results if dcbx is in the FW */
1878                 if (bnx2x_dcbx_read_shmem_neg_results(bp))
1879                         return;
1880
1881                 bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat,
1882                                           bp->dcbx_error);
1883                 bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat,
1884                                          bp->dcbx_error);
1885 #ifdef BCM_DCBNL
1886                 /*
1887                  * Add new app tlvs to dcbnl
1888                  */
1889                 bnx2x_dcbnl_update_applist(bp, false);
1890                 /*
1891                  * Send a notification for the new negotiated parameters
1892                  */
1893                 dcbnl_cee_notify(bp->dev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0);
1894 #endif
1895                 /*
1896                  * reconfigure the netdevice with the results of the new
1897                  * dcbx negotiation.
1898                  */
1899                 bnx2x_dcbx_update_tc_mapping(bp);
1900         }
1901 }
1902
1903 /* DCB netlink */
1904 #ifdef BCM_DCBNL
1905
1906 #define BNX2X_DCBX_CAPS         (DCB_CAP_DCBX_LLD_MANAGED | \
1907                                 DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_STATIC)
1908
1909 static inline bool bnx2x_dcbnl_set_valid(struct bnx2x *bp)
1910 {
1911         /* validate dcbnl call that may change HW state:
1912          * DCB is on and DCBX mode was SUCCESSFULLY set by the user.
1913          */
1914         return bp->dcb_state && bp->dcbx_mode_uset;
1915 }
1916
1917 static u8 bnx2x_dcbnl_get_state(struct net_device *netdev)
1918 {
1919         struct bnx2x *bp = netdev_priv(netdev);
1920         DP(BNX2X_MSG_DCB, "state = %d\n", bp->dcb_state);
1921         return bp->dcb_state;
1922 }
1923
1924 static u8 bnx2x_dcbnl_set_state(struct net_device *netdev, u8 state)
1925 {
1926         struct bnx2x *bp = netdev_priv(netdev);
1927         DP(BNX2X_MSG_DCB, "state = %s\n", state ? "on" : "off");
1928
1929         /* Fail to set state to "enabled" if dcbx is disabled in nvram */
1930         if (state && ((bp->dcbx_enabled == BNX2X_DCBX_ENABLED_OFF) ||
1931                       (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_INVALID))) {
1932                 DP(BNX2X_MSG_DCB, "Can not set dcbx to enabled while it is disabled in nvm\n");
1933                 return 1;
1934         }
1935
1936         bnx2x_dcbx_set_state(bp, (state ? true : false), bp->dcbx_enabled);
1937         return 0;
1938 }
1939
1940 static void bnx2x_dcbnl_get_perm_hw_addr(struct net_device *netdev,
1941                                          u8 *perm_addr)
1942 {
1943         struct bnx2x *bp = netdev_priv(netdev);
1944         DP(BNX2X_MSG_DCB, "GET-PERM-ADDR\n");
1945
1946         /* first the HW mac address */
1947         memcpy(perm_addr, netdev->dev_addr, netdev->addr_len);
1948
1949         if (CNIC_LOADED(bp))
1950                 /* second SAN address */
1951                 memcpy(perm_addr+netdev->addr_len, bp->fip_mac,
1952                        netdev->addr_len);
1953 }
1954
1955 static void bnx2x_dcbnl_set_pg_tccfg_tx(struct net_device *netdev, int prio,
1956                                         u8 prio_type, u8 pgid, u8 bw_pct,
1957                                         u8 up_map)
1958 {
1959         struct bnx2x *bp = netdev_priv(netdev);
1960
1961         DP(BNX2X_MSG_DCB, "prio[%d] = %d\n", prio, pgid);
1962         if (!bnx2x_dcbnl_set_valid(bp) || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES)
1963                 return;
1964
1965         /**
1966          * bw_pct ignored -     band-width percentage devision between user
1967          *                      priorities within the same group is not
1968          *                      standard and hence not supported
1969          *
1970          * prio_type ignored -  priority levels within the same group are not
1971          *                      standard and hence are not supported. According
1972          *                      to the standard pgid 15 is dedicated to strict
1973          *                      priority traffic (on the port level).
1974          *
1975          * up_map ignored
1976          */
1977
1978         bp->dcbx_config_params.admin_configuration_ets_pg[prio] = pgid;
1979         bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
1980 }
1981
1982 static void bnx2x_dcbnl_set_pg_bwgcfg_tx(struct net_device *netdev,
1983                                          int pgid, u8 bw_pct)
1984 {
1985         struct bnx2x *bp = netdev_priv(netdev);
1986         DP(BNX2X_MSG_DCB, "pgid[%d] = %d\n", pgid, bw_pct);
1987
1988         if (!bnx2x_dcbnl_set_valid(bp) || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES)
1989                 return;
1990
1991         bp->dcbx_config_params.admin_configuration_bw_precentage[pgid] = bw_pct;
1992         bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
1993 }
1994
1995 static void bnx2x_dcbnl_set_pg_tccfg_rx(struct net_device *netdev, int prio,
1996                                         u8 prio_type, u8 pgid, u8 bw_pct,
1997                                         u8 up_map)
1998 {
1999         struct bnx2x *bp = netdev_priv(netdev);
2000         DP(BNX2X_MSG_DCB, "Nothing to set; No RX support\n");
2001 }
2002
2003 static void bnx2x_dcbnl_set_pg_bwgcfg_rx(struct net_device *netdev,
2004                                          int pgid, u8 bw_pct)
2005 {
2006         struct bnx2x *bp = netdev_priv(netdev);
2007         DP(BNX2X_MSG_DCB, "Nothing to set; No RX support\n");
2008 }
2009
2010 static void bnx2x_dcbnl_get_pg_tccfg_tx(struct net_device *netdev, int prio,
2011                                         u8 *prio_type, u8 *pgid, u8 *bw_pct,
2012                                         u8 *up_map)
2013 {
2014         struct bnx2x *bp = netdev_priv(netdev);
2015         DP(BNX2X_MSG_DCB, "prio = %d\n", prio);
2016
2017         /**
2018          * bw_pct ignored -     band-width percentage devision between user
2019          *                      priorities within the same group is not
2020          *                      standard and hence not supported
2021          *
2022          * prio_type ignored -  priority levels within the same group are not
2023          *                      standard and hence are not supported. According
2024          *                      to the standard pgid 15 is dedicated to strict
2025          *                      priority traffic (on the port level).
2026          *
2027          * up_map ignored
2028          */
2029         *up_map = *bw_pct = *prio_type = *pgid = 0;
2030
2031         if (!bp->dcb_state || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES)
2032                 return;
2033
2034         *pgid = DCBX_PRI_PG_GET(bp->dcbx_local_feat.ets.pri_pg_tbl, prio);
2035 }
2036
2037 static void bnx2x_dcbnl_get_pg_bwgcfg_tx(struct net_device *netdev,
2038                                          int pgid, u8 *bw_pct)
2039 {
2040         struct bnx2x *bp = netdev_priv(netdev);
2041         DP(BNX2X_MSG_DCB, "pgid = %d\n", pgid);
2042
2043         *bw_pct = 0;
2044
2045         if (!bp->dcb_state || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES)
2046                 return;
2047
2048         *bw_pct = DCBX_PG_BW_GET(bp->dcbx_local_feat.ets.pg_bw_tbl, pgid);
2049 }
2050
2051 static void bnx2x_dcbnl_get_pg_tccfg_rx(struct net_device *netdev, int prio,
2052                                         u8 *prio_type, u8 *pgid, u8 *bw_pct,
2053                                         u8 *up_map)
2054 {
2055         struct bnx2x *bp = netdev_priv(netdev);
2056         DP(BNX2X_MSG_DCB, "Nothing to get; No RX support\n");
2057
2058         *prio_type = *pgid = *bw_pct = *up_map = 0;
2059 }
2060
2061 static void bnx2x_dcbnl_get_pg_bwgcfg_rx(struct net_device *netdev,
2062                                          int pgid, u8 *bw_pct)
2063 {
2064         struct bnx2x *bp = netdev_priv(netdev);
2065         DP(BNX2X_MSG_DCB, "Nothing to get; No RX support\n");
2066
2067         *bw_pct = 0;
2068 }
2069
2070 static void bnx2x_dcbnl_set_pfc_cfg(struct net_device *netdev, int prio,
2071                                     u8 setting)
2072 {
2073         struct bnx2x *bp = netdev_priv(netdev);
2074         DP(BNX2X_MSG_DCB, "prio[%d] = %d\n", prio, setting);
2075
2076         if (!bnx2x_dcbnl_set_valid(bp) || prio >= MAX_PFC_PRIORITIES)
2077                 return;
2078
2079         if (setting) {
2080                 bp->dcbx_config_params.admin_pfc_bitmap |= (1 << prio);
2081                 bp->dcbx_config_params.admin_pfc_tx_enable = 1;
2082         } else {
2083                 bp->dcbx_config_params.admin_pfc_bitmap &= ~(1 << prio);
2084         }
2085 }
2086
2087 static void bnx2x_dcbnl_get_pfc_cfg(struct net_device *netdev, int prio,
2088                                     u8 *setting)
2089 {
2090         struct bnx2x *bp = netdev_priv(netdev);
2091         DP(BNX2X_MSG_DCB, "prio = %d\n", prio);
2092
2093         *setting = 0;
2094
2095         if (!bp->dcb_state || prio >= MAX_PFC_PRIORITIES)
2096                 return;
2097
2098         *setting = (bp->dcbx_local_feat.pfc.pri_en_bitmap >> prio) & 0x1;
2099 }
2100
2101 static u8 bnx2x_dcbnl_set_all(struct net_device *netdev)
2102 {
2103         struct bnx2x *bp = netdev_priv(netdev);
2104         int rc = 0;
2105
2106         DP(BNX2X_MSG_DCB, "SET-ALL\n");
2107
2108         if (!bnx2x_dcbnl_set_valid(bp))
2109                 return 1;
2110
2111         if (bp->recovery_state != BNX2X_RECOVERY_DONE) {
2112                 netdev_err(bp->dev,
2113                            "Handling parity error recovery. Try again later\n");
2114                 return 1;
2115         }
2116         if (netif_running(bp->dev)) {
2117                 bnx2x_update_drv_flags(bp,
2118                                        1 << DRV_FLAGS_DCB_MFW_CONFIGURED,
2119                                        1);
2120                 bnx2x_dcbx_init(bp, true);
2121         }
2122         DP(BNX2X_MSG_DCB, "set_dcbx_params done (%d)\n", rc);
2123         if (rc)
2124                 return 1;
2125
2126         return 0;
2127 }
2128
2129 static u8 bnx2x_dcbnl_get_cap(struct net_device *netdev, int capid, u8 *cap)
2130 {
2131         struct bnx2x *bp = netdev_priv(netdev);
2132         u8 rval = 0;
2133
2134         if (bp->dcb_state) {
2135                 switch (capid) {
2136                 case DCB_CAP_ATTR_PG:
2137                         *cap = true;
2138                         break;
2139                 case DCB_CAP_ATTR_PFC:
2140                         *cap = true;
2141                         break;
2142                 case DCB_CAP_ATTR_UP2TC:
2143                         *cap = false;
2144                         break;
2145                 case DCB_CAP_ATTR_PG_TCS:
2146                         *cap = 0x80;    /* 8 priorities for PGs */
2147                         break;
2148                 case DCB_CAP_ATTR_PFC_TCS:
2149                         *cap = 0x80;    /* 8 priorities for PFC */
2150                         break;
2151                 case DCB_CAP_ATTR_GSP:
2152                         *cap = true;
2153                         break;
2154                 case DCB_CAP_ATTR_BCN:
2155                         *cap = false;
2156                         break;
2157                 case DCB_CAP_ATTR_DCBX:
2158                         *cap = BNX2X_DCBX_CAPS;
2159                         break;
2160                 default:
2161                         BNX2X_ERR("Non valid capability ID\n");
2162                         rval = 1;
2163                         break;
2164                 }
2165         } else {
2166                 DP(BNX2X_MSG_DCB, "DCB disabled\n");
2167                 rval = 1;
2168         }
2169
2170         DP(BNX2X_MSG_DCB, "capid %d:%x\n", capid, *cap);
2171         return rval;
2172 }
2173
2174 static int bnx2x_dcbnl_get_numtcs(struct net_device *netdev, int tcid, u8 *num)
2175 {
2176         struct bnx2x *bp = netdev_priv(netdev);
2177         u8 rval = 0;
2178
2179         DP(BNX2X_MSG_DCB, "tcid %d\n", tcid);
2180
2181         if (bp->dcb_state) {
2182                 switch (tcid) {
2183                 case DCB_NUMTCS_ATTR_PG:
2184                         *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 :
2185                                                   DCBX_COS_MAX_NUM_E2;
2186                         break;
2187                 case DCB_NUMTCS_ATTR_PFC:
2188                         *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 :
2189                                                   DCBX_COS_MAX_NUM_E2;
2190                         break;
2191                 default:
2192                         BNX2X_ERR("Non valid TC-ID\n");
2193                         rval = 1;
2194                         break;
2195                 }
2196         } else {
2197                 DP(BNX2X_MSG_DCB, "DCB disabled\n");
2198                 rval = 1;
2199         }
2200
2201         return rval;
2202 }
2203
2204 static int bnx2x_dcbnl_set_numtcs(struct net_device *netdev, int tcid, u8 num)
2205 {
2206         struct bnx2x *bp = netdev_priv(netdev);
2207         DP(BNX2X_MSG_DCB, "num tcs = %d; Not supported\n", num);
2208         return -EINVAL;
2209 }
2210
2211 static u8 bnx2x_dcbnl_get_pfc_state(struct net_device *netdev)
2212 {
2213         struct bnx2x *bp = netdev_priv(netdev);
2214         DP(BNX2X_MSG_DCB, "state = %d\n", bp->dcbx_local_feat.pfc.enabled);
2215
2216         if (!bp->dcb_state)
2217                 return 0;
2218
2219         return bp->dcbx_local_feat.pfc.enabled;
2220 }
2221
2222 static void bnx2x_dcbnl_set_pfc_state(struct net_device *netdev, u8 state)
2223 {
2224         struct bnx2x *bp = netdev_priv(netdev);
2225         DP(BNX2X_MSG_DCB, "state = %s\n", state ? "on" : "off");
2226
2227         if (!bnx2x_dcbnl_set_valid(bp))
2228                 return;
2229
2230         bp->dcbx_config_params.admin_pfc_tx_enable =
2231         bp->dcbx_config_params.admin_pfc_enable = (state ? 1 : 0);
2232 }
2233
2234 static void bnx2x_admin_app_set_ent(
2235         struct bnx2x_admin_priority_app_table *app_ent,
2236         u8 idtype, u16 idval, u8 up)
2237 {
2238         app_ent->valid = 1;
2239
2240         switch (idtype) {
2241         case DCB_APP_IDTYPE_ETHTYPE:
2242                 app_ent->traffic_type = TRAFFIC_TYPE_ETH;
2243                 break;
2244         case DCB_APP_IDTYPE_PORTNUM:
2245                 app_ent->traffic_type = TRAFFIC_TYPE_PORT;
2246                 break;
2247         default:
2248                 break; /* never gets here */
2249         }
2250         app_ent->app_id = idval;
2251         app_ent->priority = up;
2252 }
2253
2254 static bool bnx2x_admin_app_is_equal(
2255         struct bnx2x_admin_priority_app_table *app_ent,
2256         u8 idtype, u16 idval)
2257 {
2258         if (!app_ent->valid)
2259                 return false;
2260
2261         switch (idtype) {
2262         case DCB_APP_IDTYPE_ETHTYPE:
2263                 if (app_ent->traffic_type != TRAFFIC_TYPE_ETH)
2264                         return false;
2265                 break;
2266         case DCB_APP_IDTYPE_PORTNUM:
2267                 if (app_ent->traffic_type != TRAFFIC_TYPE_PORT)
2268                         return false;
2269                 break;
2270         default:
2271                 return false;
2272         }
2273         if (app_ent->app_id != idval)
2274                 return false;
2275
2276         return true;
2277 }
2278
2279 static int bnx2x_set_admin_app_up(struct bnx2x *bp, u8 idtype, u16 idval, u8 up)
2280 {
2281         int i, ff;
2282
2283         /* iterate over the app entries looking for idtype and idval */
2284         for (i = 0, ff = -1; i < DCBX_CONFIG_MAX_APP_PROTOCOL; i++) {
2285                 struct bnx2x_admin_priority_app_table *app_ent =
2286                         &bp->dcbx_config_params.admin_priority_app_table[i];
2287                 if (bnx2x_admin_app_is_equal(app_ent, idtype, idval))
2288                         break;
2289
2290                 if (ff < 0 && !app_ent->valid)
2291                         ff = i;
2292         }
2293         if (i < DCBX_CONFIG_MAX_APP_PROTOCOL)
2294                 /* if found overwrite up */
2295                 bp->dcbx_config_params.
2296                         admin_priority_app_table[i].priority = up;
2297         else if (ff >= 0)
2298                 /* not found use first-free */
2299                 bnx2x_admin_app_set_ent(
2300                         &bp->dcbx_config_params.admin_priority_app_table[ff],
2301                         idtype, idval, up);
2302         else {
2303                 /* app table is full */
2304                 BNX2X_ERR("Application table is too large\n");
2305                 return -EBUSY;
2306         }
2307
2308         /* up configured, if not 0 make sure feature is enabled */
2309         if (up)
2310                 bp->dcbx_config_params.admin_application_priority_tx_enable = 1;
2311
2312         return 0;
2313 }
2314
2315 static u8 bnx2x_dcbnl_set_app_up(struct net_device *netdev, u8 idtype,
2316                                  u16 idval, u8 up)
2317 {
2318         struct bnx2x *bp = netdev_priv(netdev);
2319
2320         DP(BNX2X_MSG_DCB, "app_type %d, app_id %x, prio bitmap %d\n",
2321            idtype, idval, up);
2322
2323         if (!bnx2x_dcbnl_set_valid(bp)) {
2324                 DP(BNX2X_MSG_DCB, "dcbnl call not valid\n");
2325                 return -EINVAL;
2326         }
2327
2328         /* verify idtype */
2329         switch (idtype) {
2330         case DCB_APP_IDTYPE_ETHTYPE:
2331         case DCB_APP_IDTYPE_PORTNUM:
2332                 break;
2333         default:
2334                 DP(BNX2X_MSG_DCB, "Wrong ID type\n");
2335                 return -EINVAL;
2336         }
2337         return bnx2x_set_admin_app_up(bp, idtype, idval, up);
2338 }
2339
2340 static u8 bnx2x_dcbnl_get_dcbx(struct net_device *netdev)
2341 {
2342         struct bnx2x *bp = netdev_priv(netdev);
2343         u8 state;
2344
2345         state = DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_CEE;
2346
2347         if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF)
2348                 state |= DCB_CAP_DCBX_STATIC;
2349
2350         return state;
2351 }
2352
2353 static u8 bnx2x_dcbnl_set_dcbx(struct net_device *netdev, u8 state)
2354 {
2355         struct bnx2x *bp = netdev_priv(netdev);
2356         DP(BNX2X_MSG_DCB, "state = %02x\n", state);
2357
2358         /* set dcbx mode */
2359
2360         if ((state & BNX2X_DCBX_CAPS) != state) {
2361                 BNX2X_ERR("Requested DCBX mode %x is beyond advertised capabilities\n",
2362                           state);
2363                 return 1;
2364         }
2365
2366         if (bp->dcb_state != BNX2X_DCB_STATE_ON) {
2367                 BNX2X_ERR("DCB turned off, DCBX configuration is invalid\n");
2368                 return 1;
2369         }
2370
2371         if (state & DCB_CAP_DCBX_STATIC)
2372                 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_OFF;
2373         else
2374                 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_ON;
2375
2376         bp->dcbx_mode_uset = true;
2377         return 0;
2378 }
2379
2380 static u8 bnx2x_dcbnl_get_featcfg(struct net_device *netdev, int featid,
2381                                   u8 *flags)
2382 {
2383         struct bnx2x *bp = netdev_priv(netdev);
2384         u8 rval = 0;
2385
2386         DP(BNX2X_MSG_DCB, "featid %d\n", featid);
2387
2388         if (bp->dcb_state) {
2389                 *flags = 0;
2390                 switch (featid) {
2391                 case DCB_FEATCFG_ATTR_PG:
2392                         if (bp->dcbx_local_feat.ets.enabled)
2393                                 *flags |= DCB_FEATCFG_ENABLE;
2394                         if (bp->dcbx_error & (DCBX_LOCAL_ETS_ERROR |
2395                                               DCBX_REMOTE_MIB_ERROR))
2396                                 *flags |= DCB_FEATCFG_ERROR;
2397                         break;
2398                 case DCB_FEATCFG_ATTR_PFC:
2399                         if (bp->dcbx_local_feat.pfc.enabled)
2400                                 *flags |= DCB_FEATCFG_ENABLE;
2401                         if (bp->dcbx_error & (DCBX_LOCAL_PFC_ERROR |
2402                                               DCBX_LOCAL_PFC_MISMATCH |
2403                                               DCBX_REMOTE_MIB_ERROR))
2404                                 *flags |= DCB_FEATCFG_ERROR;
2405                         break;
2406                 case DCB_FEATCFG_ATTR_APP:
2407                         if (bp->dcbx_local_feat.app.enabled)
2408                                 *flags |= DCB_FEATCFG_ENABLE;
2409                         if (bp->dcbx_error & (DCBX_LOCAL_APP_ERROR |
2410                                               DCBX_LOCAL_APP_MISMATCH |
2411                                               DCBX_REMOTE_MIB_ERROR))
2412                                 *flags |= DCB_FEATCFG_ERROR;
2413                         break;
2414                 default:
2415                         BNX2X_ERR("Non valid feature-ID\n");
2416                         rval = 1;
2417                         break;
2418                 }
2419         } else {
2420                 DP(BNX2X_MSG_DCB, "DCB disabled\n");
2421                 rval = 1;
2422         }
2423
2424         return rval;
2425 }
2426
2427 static u8 bnx2x_dcbnl_set_featcfg(struct net_device *netdev, int featid,
2428                                   u8 flags)
2429 {
2430         struct bnx2x *bp = netdev_priv(netdev);
2431         u8 rval = 0;
2432
2433         DP(BNX2X_MSG_DCB, "featid = %d flags = %02x\n", featid, flags);
2434
2435         /* ignore the 'advertise' flag */
2436         if (bnx2x_dcbnl_set_valid(bp)) {
2437                 switch (featid) {
2438                 case DCB_FEATCFG_ATTR_PG:
2439                         bp->dcbx_config_params.admin_ets_enable =
2440                                 flags & DCB_FEATCFG_ENABLE ? 1 : 0;
2441                         bp->dcbx_config_params.admin_ets_willing =
2442                                 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2443                         break;
2444                 case DCB_FEATCFG_ATTR_PFC:
2445                         bp->dcbx_config_params.admin_pfc_enable =
2446                                 flags & DCB_FEATCFG_ENABLE ? 1 : 0;
2447                         bp->dcbx_config_params.admin_pfc_willing =
2448                                 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2449                         break;
2450                 case DCB_FEATCFG_ATTR_APP:
2451                         /* ignore enable, always enabled */
2452                         bp->dcbx_config_params.admin_app_priority_willing =
2453                                 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2454                         break;
2455                 default:
2456                         BNX2X_ERR("Non valid feature-ID\n");
2457                         rval = 1;
2458                         break;
2459                 }
2460         } else {
2461                 DP(BNX2X_MSG_DCB, "dcbnl call not valid\n");
2462                 rval = 1;
2463         }
2464
2465         return rval;
2466 }
2467
2468 static int bnx2x_peer_appinfo(struct net_device *netdev,
2469                               struct dcb_peer_app_info *info, u16* app_count)
2470 {
2471         int i;
2472         struct bnx2x *bp = netdev_priv(netdev);
2473
2474         DP(BNX2X_MSG_DCB, "APP-INFO\n");
2475
2476         info->willing = (bp->dcbx_remote_flags & DCBX_APP_REM_WILLING) ?: 0;
2477         info->error = (bp->dcbx_remote_flags & DCBX_APP_RX_ERROR) ?: 0;
2478         *app_count = 0;
2479
2480         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++)
2481                 if (bp->dcbx_remote_feat.app.app_pri_tbl[i].appBitfield &
2482                     DCBX_APP_ENTRY_VALID)
2483                         (*app_count)++;
2484         return 0;
2485 }
2486
2487 static int bnx2x_peer_apptable(struct net_device *netdev,
2488                                struct dcb_app *table)
2489 {
2490         int i, j;
2491         struct bnx2x *bp = netdev_priv(netdev);
2492
2493         DP(BNX2X_MSG_DCB, "APP-TABLE\n");
2494
2495         for (i = 0, j = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
2496                 struct dcbx_app_priority_entry *ent =
2497                         &bp->dcbx_remote_feat.app.app_pri_tbl[i];
2498
2499                 if (ent->appBitfield & DCBX_APP_ENTRY_VALID) {
2500                         table[j].selector = bnx2x_dcbx_dcbnl_app_idtype(ent);
2501                         table[j].priority = bnx2x_dcbx_dcbnl_app_up(ent);
2502                         table[j++].protocol = ent->app_id;
2503                 }
2504         }
2505         return 0;
2506 }
2507
2508 static int bnx2x_cee_peer_getpg(struct net_device *netdev, struct cee_pg *pg)
2509 {
2510         int i;
2511         struct bnx2x *bp = netdev_priv(netdev);
2512
2513         pg->willing = (bp->dcbx_remote_flags & DCBX_ETS_REM_WILLING) ?: 0;
2514
2515         for (i = 0; i < CEE_DCBX_MAX_PGS; i++) {
2516                 pg->pg_bw[i] =
2517                         DCBX_PG_BW_GET(bp->dcbx_remote_feat.ets.pg_bw_tbl, i);
2518                 pg->prio_pg[i] =
2519                         DCBX_PRI_PG_GET(bp->dcbx_remote_feat.ets.pri_pg_tbl, i);
2520         }
2521         return 0;
2522 }
2523
2524 static int bnx2x_cee_peer_getpfc(struct net_device *netdev,
2525                                  struct cee_pfc *pfc)
2526 {
2527         struct bnx2x *bp = netdev_priv(netdev);
2528         pfc->tcs_supported = bp->dcbx_remote_feat.pfc.pfc_caps;
2529         pfc->pfc_en = bp->dcbx_remote_feat.pfc.pri_en_bitmap;
2530         return 0;
2531 }
2532
2533 const struct dcbnl_rtnl_ops bnx2x_dcbnl_ops = {
2534         .getstate               = bnx2x_dcbnl_get_state,
2535         .setstate               = bnx2x_dcbnl_set_state,
2536         .getpermhwaddr          = bnx2x_dcbnl_get_perm_hw_addr,
2537         .setpgtccfgtx           = bnx2x_dcbnl_set_pg_tccfg_tx,
2538         .setpgbwgcfgtx          = bnx2x_dcbnl_set_pg_bwgcfg_tx,
2539         .setpgtccfgrx           = bnx2x_dcbnl_set_pg_tccfg_rx,
2540         .setpgbwgcfgrx          = bnx2x_dcbnl_set_pg_bwgcfg_rx,
2541         .getpgtccfgtx           = bnx2x_dcbnl_get_pg_tccfg_tx,
2542         .getpgbwgcfgtx          = bnx2x_dcbnl_get_pg_bwgcfg_tx,
2543         .getpgtccfgrx           = bnx2x_dcbnl_get_pg_tccfg_rx,
2544         .getpgbwgcfgrx          = bnx2x_dcbnl_get_pg_bwgcfg_rx,
2545         .setpfccfg              = bnx2x_dcbnl_set_pfc_cfg,
2546         .getpfccfg              = bnx2x_dcbnl_get_pfc_cfg,
2547         .setall                 = bnx2x_dcbnl_set_all,
2548         .getcap                 = bnx2x_dcbnl_get_cap,
2549         .getnumtcs              = bnx2x_dcbnl_get_numtcs,
2550         .setnumtcs              = bnx2x_dcbnl_set_numtcs,
2551         .getpfcstate            = bnx2x_dcbnl_get_pfc_state,
2552         .setpfcstate            = bnx2x_dcbnl_set_pfc_state,
2553         .setapp                 = bnx2x_dcbnl_set_app_up,
2554         .getdcbx                = bnx2x_dcbnl_get_dcbx,
2555         .setdcbx                = bnx2x_dcbnl_set_dcbx,
2556         .getfeatcfg             = bnx2x_dcbnl_get_featcfg,
2557         .setfeatcfg             = bnx2x_dcbnl_set_featcfg,
2558         .peer_getappinfo        = bnx2x_peer_appinfo,
2559         .peer_getapptable       = bnx2x_peer_apptable,
2560         .cee_peer_getpg         = bnx2x_cee_peer_getpg,
2561         .cee_peer_getpfc        = bnx2x_cee_peer_getpfc,
2562 };
2563
2564 #endif /* BCM_DCBNL */