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

   1 /* bnx2x_dcb.c: Broadcom Everest network driver.
   2  *
   3  * Copyright 2009-2011 Broadcom Corporation
   4  *
   5  * Unless you and Broadcom execute a separate written software license
   6  * agreement governing use of this software, this software is licensed to you
   7  * under the terms of the GNU General Public License version 2, available
   8  * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
   9  *
  10  * Notwithstanding the above, under no circumstances may you combine this
  11  * software in any way with any other Broadcom software provided under a
  12  * license other than the GPL, without Broadcom's express prior written
  13  * consent.
  14  *
  15  * Maintained by: Eilon Greenstein <eilong@broadcom.com>
  16  * Written by: Dmitry Kravkov
  17  *
  18  */
  19
  20 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  21
  22 #include <linux/netdevice.h>
  23 #include <linux/types.h>
  24 #include <linux/errno.h>
  25 #include <linux/rtnetlink.h>
  26 #include <net/dcbnl.h>
  27
  28 #include "bnx2x.h"
  29 #include "bnx2x_cmn.h"
  30 #include "bnx2x_dcb.h"
  31
  32 /* forward declarations of dcbx related functions */
  33 static int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp);
  34 static void bnx2x_pfc_set_pfc(struct bnx2x *bp);
  35 static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp);
  36 static int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp);
  37 static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp,
  38                                           u32 *set_configuration_ets_pg,
  39                                           u32 *pri_pg_tbl);
  40 static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp,
  41                                             u32 *pg_pri_orginal_spread,
  42                                             struct pg_help_data *help_data);
  43 static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp,
  44                                        struct pg_help_data *help_data,
  45                                        struct dcbx_ets_feature *ets,
  46                                        u32 *pg_pri_orginal_spread);
  47 static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp,
  48                                 struct cos_help_data *cos_data,
  49                                 u32 *pg_pri_orginal_spread,
  50                                 struct dcbx_ets_feature *ets);
  51 static void bnx2x_dcbx_fw_struct(struct bnx2x *bp,
  52                                  struct bnx2x_func_tx_start_params*);
  53
  54 /* helpers: read/write len bytes from addr into buff by REG_RD/REG_WR */
  55 static void bnx2x_read_data(struct bnx2x *bp, u32 *buff,
  56                                    u32 addr, u32 len)
  57 {
  58         int i;
  59         for (i = 0; i < len; i += 4, buff++)
  60                 *buff = REG_RD(bp, addr + i);
  61 }
  62
  63 static void bnx2x_write_data(struct bnx2x *bp, u32 *buff,
  64                                     u32 addr, u32 len)
  65 {
  66         int i;
  67         for (i = 0; i < len; i += 4, buff++)
  68                 REG_WR(bp, addr + i, *buff);
  69 }
  70
  71 static void bnx2x_pfc_set(struct bnx2x *bp)
  72 {
  73         struct bnx2x_nig_brb_pfc_port_params pfc_params = {0};
  74         u32 pri_bit, val = 0;
  75         int i;
  76
  77         pfc_params.num_of_rx_cos_priority_mask =
  78                                         bp->dcbx_port_params.ets.num_of_cos;
  79
  80         /* Tx COS configuration */
  81         for (i = 0; i < bp->dcbx_port_params.ets.num_of_cos; i++)
  82                 /*
  83                  * We configure only the pauseable bits (non pauseable aren't
  84                  * configured at all) it's done to avoid false pauses from
  85                  * network
  86                  */
  87                 pfc_params.rx_cos_priority_mask[i] =
  88                         bp->dcbx_port_params.ets.cos_params[i].pri_bitmask
  89                                 & DCBX_PFC_PRI_PAUSE_MASK(bp);
  90
  91         /*
  92          * Rx COS configuration
  93          * Changing PFC RX configuration .
  94          * In RX COS0 will always be configured to lossy and COS1 to lossless
  95          */
  96         for (i = 0 ; i < MAX_PFC_PRIORITIES ; i++) {
  97                 pri_bit = 1 << i;
  98
  99                 if (pri_bit & DCBX_PFC_PRI_PAUSE_MASK(bp))
 100                         val |= 1 << (i * 4);
 101         }
 102
 103         pfc_params.pkt_priority_to_cos = val;
 104
 105         /* RX COS0 */
 106         pfc_params.llfc_low_priority_classes = 0;
 107         /* RX COS1 */
 108         pfc_params.llfc_high_priority_classes = DCBX_PFC_PRI_PAUSE_MASK(bp);
 109
 110         /* BRB configuration */
 111         pfc_params.cos0_pauseable = false;
 112         pfc_params.cos1_pauseable = true;
 113
 114         bnx2x_acquire_phy_lock(bp);
 115         bp->link_params.feature_config_flags |= FEATURE_CONFIG_PFC_ENABLED;
 116         bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &pfc_params);
 117         bnx2x_release_phy_lock(bp);
 118 }
 119
 120 static void bnx2x_pfc_clear(struct bnx2x *bp)
 121 {
 122         struct bnx2x_nig_brb_pfc_port_params nig_params = {0};
 123         nig_params.pause_enable = 1;
 124 #ifdef BNX2X_SAFC
 125         if (bp->flags & SAFC_TX_FLAG) {
 126                 u32 high = 0, low = 0;
 127                 int i;
 128
 129                 for (i = 0; i < BNX2X_MAX_PRIORITY; i++) {
 130                         if (bp->pri_map[i] == 1)
 131                                 high |= (1 << i);
 132                         if (bp->pri_map[i] == 0)
 133                                 low |= (1 << i);
 134                 }
 135
 136                 nig_params.llfc_low_priority_classes = high;
 137                 nig_params.llfc_low_priority_classes = low;
 138
 139                 nig_params.pause_enable = 0;
 140                 nig_params.llfc_enable = 1;
 141                 nig_params.llfc_out_en = 1;
 142         }
 143 #endif /* BNX2X_SAFC */
 144         bnx2x_acquire_phy_lock(bp);
 145         bp->link_params.feature_config_flags &= ~FEATURE_CONFIG_PFC_ENABLED;
 146         bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &nig_params);
 147         bnx2x_release_phy_lock(bp);
 148 }
 149
 150 static void  bnx2x_dump_dcbx_drv_param(struct bnx2x *bp,
 151                                        struct dcbx_features *features,
 152                                        u32 error)
 153 {
 154         u8 i = 0;
 155         DP(NETIF_MSG_LINK, "local_mib.error %x\n", error);
 156
 157         /* PG */
 158         DP(NETIF_MSG_LINK,
 159            "local_mib.features.ets.enabled %x\n", features->ets.enabled);
 160         for (i = 0; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++)
 161                 DP(NETIF_MSG_LINK,
 162                    "local_mib.features.ets.pg_bw_tbl[%d] %d\n", i,
 163                    DCBX_PG_BW_GET(features->ets.pg_bw_tbl, i));
 164         for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++)
 165                 DP(NETIF_MSG_LINK,
 166                    "local_mib.features.ets.pri_pg_tbl[%d] %d\n", i,
 167                    DCBX_PRI_PG_GET(features->ets.pri_pg_tbl, i));
 168
 169         /* pfc */
 170         DP(NETIF_MSG_LINK, "dcbx_features.pfc.pri_en_bitmap %x\n",
 171                                         features->pfc.pri_en_bitmap);
 172         DP(NETIF_MSG_LINK, "dcbx_features.pfc.pfc_caps %x\n",
 173                                         features->pfc.pfc_caps);
 174         DP(NETIF_MSG_LINK, "dcbx_features.pfc.enabled %x\n",
 175                                         features->pfc.enabled);
 176
 177         DP(NETIF_MSG_LINK, "dcbx_features.app.default_pri %x\n",
 178                                         features->app.default_pri);
 179         DP(NETIF_MSG_LINK, "dcbx_features.app.tc_supported %x\n",
 180                                         features->app.tc_supported);
 181         DP(NETIF_MSG_LINK, "dcbx_features.app.enabled %x\n",
 182                                         features->app.enabled);
 183         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
 184                 DP(NETIF_MSG_LINK,
 185                    "dcbx_features.app.app_pri_tbl[%x].app_id %x\n",
 186                    i, features->app.app_pri_tbl[i].app_id);
 187                 DP(NETIF_MSG_LINK,
 188                    "dcbx_features.app.app_pri_tbl[%x].pri_bitmap %x\n",
 189                    i, features->app.app_pri_tbl[i].pri_bitmap);
 190                 DP(NETIF_MSG_LINK,
 191                    "dcbx_features.app.app_pri_tbl[%x].appBitfield %x\n",
 192                    i, features->app.app_pri_tbl[i].appBitfield);
 193         }
 194 }
 195
 196 static void bnx2x_dcbx_get_ap_priority(struct bnx2x *bp,
 197                                        u8 pri_bitmap,
 198                                        u8 llfc_traf_type)
 199 {
 200         u32 pri = MAX_PFC_PRIORITIES;
 201         u32 index = MAX_PFC_PRIORITIES - 1;
 202         u32 pri_mask;
 203         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
 204
 205         /* Choose the highest priority */
 206         while ((MAX_PFC_PRIORITIES == pri) && (0 != index)) {
 207                 pri_mask = 1 << index;
 208                 if (GET_FLAGS(pri_bitmap, pri_mask))
 209                         pri = index ;
 210                 index--;
 211         }
 212
 213         if (pri < MAX_PFC_PRIORITIES)
 214                 ttp[llfc_traf_type] = max_t(u32, ttp[llfc_traf_type], pri);
 215 }
 216
 217 static void bnx2x_dcbx_get_ap_feature(struct bnx2x *bp,
 218                                    struct dcbx_app_priority_feature *app,
 219                                    u32 error) {
 220         u8 index;
 221         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
 222
 223         if (GET_FLAGS(error, DCBX_LOCAL_APP_ERROR))
 224                 DP(NETIF_MSG_LINK, "DCBX_LOCAL_APP_ERROR\n");
 225
 226         if (GET_FLAGS(error, DCBX_LOCAL_APP_MISMATCH))
 227                 DP(NETIF_MSG_LINK, "DCBX_LOCAL_APP_MISMATCH\n");
 228
 229         if (app->enabled &&
 230             !GET_FLAGS(error, DCBX_LOCAL_APP_ERROR | DCBX_LOCAL_APP_MISMATCH)) {
 231
 232                 bp->dcbx_port_params.app.enabled = true;
 233
 234                 for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++)
 235                         ttp[index] = 0;
 236
 237                 if (app->default_pri < MAX_PFC_PRIORITIES)
 238                         ttp[LLFC_TRAFFIC_TYPE_NW] = app->default_pri;
 239
 240                 for (index = 0 ; index < DCBX_MAX_APP_PROTOCOL; index++) {
 241                         struct dcbx_app_priority_entry *entry =
 242                                                         app->app_pri_tbl;
 243
 244                         if (GET_FLAGS(entry[index].appBitfield,
 245                                      DCBX_APP_SF_ETH_TYPE) &&
 246                            ETH_TYPE_FCOE == entry[index].app_id)
 247                                 bnx2x_dcbx_get_ap_priority(bp,
 248                                                 entry[index].pri_bitmap,
 249                                                 LLFC_TRAFFIC_TYPE_FCOE);
 250
 251                         if (GET_FLAGS(entry[index].appBitfield,
 252                                      DCBX_APP_SF_PORT) &&
 253                            TCP_PORT_ISCSI == entry[index].app_id)
 254                                 bnx2x_dcbx_get_ap_priority(bp,
 255                                                 entry[index].pri_bitmap,
 256                                                 LLFC_TRAFFIC_TYPE_ISCSI);
 257                 }
 258         } else {
 259                 DP(NETIF_MSG_LINK, "DCBX_LOCAL_APP_DISABLED\n");
 260                 bp->dcbx_port_params.app.enabled = false;
 261                 for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++)
 262                         ttp[index] = INVALID_TRAFFIC_TYPE_PRIORITY;
 263         }
 264 }
 265
 266 static void bnx2x_dcbx_get_ets_feature(struct bnx2x *bp,
 267                                        struct dcbx_ets_feature *ets,
 268                                        u32 error) {
 269         int i = 0;
 270         u32 pg_pri_orginal_spread[DCBX_MAX_NUM_PG_BW_ENTRIES] = {0};
 271         struct pg_help_data pg_help_data;
 272         struct bnx2x_dcbx_cos_params *cos_params =
 273                         bp->dcbx_port_params.ets.cos_params;
 274
 275         memset(&pg_help_data, 0, sizeof(struct pg_help_data));
 276
 277
 278         if (GET_FLAGS(error, DCBX_LOCAL_ETS_ERROR))
 279                 DP(NETIF_MSG_LINK, "DCBX_LOCAL_ETS_ERROR\n");
 280
 281
 282         /* Clean up old settings of ets on COS */
 283         for (i = 0; i < ARRAY_SIZE(bp->dcbx_port_params.ets.cos_params) ; i++) {
 284                 cos_params[i].pauseable = false;
 285                 cos_params[i].strict = BNX2X_DCBX_STRICT_INVALID;
 286                 cos_params[i].bw_tbl = DCBX_INVALID_COS_BW;
 287                 cos_params[i].pri_bitmask = 0;
 288         }
 289
 290         if (bp->dcbx_port_params.app.enabled &&
 291            !GET_FLAGS(error, DCBX_LOCAL_ETS_ERROR) &&
 292            ets->enabled) {
 293                 DP(NETIF_MSG_LINK, "DCBX_LOCAL_ETS_ENABLE\n");
 294                 bp->dcbx_port_params.ets.enabled = true;
 295
 296                 bnx2x_dcbx_get_ets_pri_pg_tbl(bp,
 297                                               pg_pri_orginal_spread,
 298                                               ets->pri_pg_tbl);
 299
 300                 bnx2x_dcbx_get_num_pg_traf_type(bp,
 301                                                 pg_pri_orginal_spread,
 302                                                 &pg_help_data);
 303
 304                 bnx2x_dcbx_fill_cos_params(bp, &pg_help_data,
 305                                            ets, pg_pri_orginal_spread);
 306
 307         } else {
 308                 DP(NETIF_MSG_LINK, "DCBX_LOCAL_ETS_DISABLED\n");
 309                 bp->dcbx_port_params.ets.enabled = false;
 310                 ets->pri_pg_tbl[0] = 0;
 311
 312                 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES ; i++)
 313                         DCBX_PG_BW_SET(ets->pg_bw_tbl, i, 1);
 314         }
 315 }
 316
 317 static void  bnx2x_dcbx_get_pfc_feature(struct bnx2x *bp,
 318                                         struct dcbx_pfc_feature *pfc, u32 error)
 319 {
 320
 321         if (GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR))
 322                 DP(NETIF_MSG_LINK, "DCBX_LOCAL_PFC_ERROR\n");
 323
 324         if (bp->dcbx_port_params.app.enabled &&
 325            !GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR | DCBX_LOCAL_PFC_MISMATCH) &&
 326            pfc->enabled) {
 327                 bp->dcbx_port_params.pfc.enabled = true;
 328                 bp->dcbx_port_params.pfc.priority_non_pauseable_mask =
 329                         ~(pfc->pri_en_bitmap);
 330         } else {
 331                 DP(NETIF_MSG_LINK, "DCBX_LOCAL_PFC_DISABLED\n");
 332                 bp->dcbx_port_params.pfc.enabled = false;
 333                 bp->dcbx_port_params.pfc.priority_non_pauseable_mask = 0;
 334         }
 335 }
 336
 337 /* maps unmapped priorities to to the same COS as L2 */
 338 static void bnx2x_dcbx_map_nw(struct bnx2x *bp)
 339 {
 340         int i;
 341         u32 unmapped = (1 << MAX_PFC_PRIORITIES) - 1; /* all ones */
 342         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
 343         u32 nw_prio = 1 << ttp[LLFC_TRAFFIC_TYPE_NW];
 344         struct bnx2x_dcbx_cos_params *cos_params =
 345                         bp->dcbx_port_params.ets.cos_params;
 346
 347         /* get unmapped priorities by clearing mapped bits */
 348         for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++)
 349                 unmapped &= ~(1 << ttp[i]);
 350
 351         /* find cos for nw prio and extend it with unmapped */
 352         for (i = 0; i < ARRAY_SIZE(bp->dcbx_port_params.ets.cos_params); i++) {
 353                 if (cos_params[i].pri_bitmask & nw_prio) {
 354                         /* extend the bitmask with unmapped */
 355                         DP(NETIF_MSG_LINK,
 356                            "cos %d extended with 0x%08x\n", i, unmapped);
 357                         cos_params[i].pri_bitmask |= unmapped;
 358                         break;
 359                 }
 360         }
 361 }
 362
 363 static void bnx2x_get_dcbx_drv_param(struct bnx2x *bp,
 364                                      struct dcbx_features *features,
 365                                      u32 error)
 366 {
 367         bnx2x_dcbx_get_ap_feature(bp, &features->app, error);
 368
 369         bnx2x_dcbx_get_pfc_feature(bp, &features->pfc, error);
 370
 371         bnx2x_dcbx_get_ets_feature(bp, &features->ets, error);
 372
 373         bnx2x_dcbx_map_nw(bp);
 374 }
 375
 376 #define DCBX_LOCAL_MIB_MAX_TRY_READ             (100)
 377 static int bnx2x_dcbx_read_mib(struct bnx2x *bp,
 378                                u32 *base_mib_addr,
 379                                u32 offset,
 380                                int read_mib_type)
 381 {
 382         int max_try_read = 0;
 383         u32 mib_size, prefix_seq_num, suffix_seq_num;
 384         struct lldp_remote_mib *remote_mib ;
 385         struct lldp_local_mib  *local_mib;
 386
 387
 388         switch (read_mib_type) {
 389         case DCBX_READ_LOCAL_MIB:
 390                 mib_size = sizeof(struct lldp_local_mib);
 391                 break;
 392         case DCBX_READ_REMOTE_MIB:
 393                 mib_size = sizeof(struct lldp_remote_mib);
 394                 break;
 395         default:
 396                 return 1; /*error*/
 397         }
 398
 399         offset += BP_PORT(bp) * mib_size;
 400
 401         do {
 402                 bnx2x_read_data(bp, base_mib_addr, offset, mib_size);
 403
 404                 max_try_read++;
 405
 406                 switch (read_mib_type) {
 407                 case DCBX_READ_LOCAL_MIB:
 408                         local_mib = (struct lldp_local_mib *) base_mib_addr;
 409                         prefix_seq_num = local_mib->prefix_seq_num;
 410                         suffix_seq_num = local_mib->suffix_seq_num;
 411                         break;
 412                 case DCBX_READ_REMOTE_MIB:
 413                         remote_mib = (struct lldp_remote_mib *) base_mib_addr;
 414                         prefix_seq_num = remote_mib->prefix_seq_num;
 415                         suffix_seq_num = remote_mib->suffix_seq_num;
 416                         break;
 417                 default:
 418                         return 1; /*error*/
 419                 }
 420         } while ((prefix_seq_num != suffix_seq_num) &&
 421                (max_try_read < DCBX_LOCAL_MIB_MAX_TRY_READ));
 422
 423         if (max_try_read >= DCBX_LOCAL_MIB_MAX_TRY_READ) {
 424                 BNX2X_ERR("MIB could not be read\n");
 425                 return 1;
 426         }
 427
 428         return 0;
 429 }
 430
 431 static void bnx2x_pfc_set_pfc(struct bnx2x *bp)
 432 {
 433         if (bp->dcbx_port_params.pfc.enabled &&
 434             !(bp->dcbx_error & DCBX_REMOTE_MIB_ERROR))
 435                 /*
 436                  * 1. Fills up common PFC structures if required
 437                  * 2. Configure NIG, MAC and BRB via the elink
 438                  */
 439                 bnx2x_pfc_set(bp);
 440         else
 441                 bnx2x_pfc_clear(bp);
 442 }
 443
 444 static int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp)
 445 {
 446         struct bnx2x_func_state_params func_params = {0};
 447
 448         func_params.f_obj = &bp->func_obj;
 449         func_params.cmd = BNX2X_F_CMD_TX_STOP;
 450
 451         DP(NETIF_MSG_LINK, "STOP TRAFFIC\n");
 452         return bnx2x_func_state_change(bp, &func_params);
 453 }
 454
 455 static int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp)
 456 {
 457         struct bnx2x_func_state_params func_params = {0};
 458         struct bnx2x_func_tx_start_params *tx_params =
 459                 &func_params.params.tx_start;
 460
 461         func_params.f_obj = &bp->func_obj;
 462         func_params.cmd = BNX2X_F_CMD_TX_START;
 463
 464         bnx2x_dcbx_fw_struct(bp, tx_params);
 465
 466         DP(NETIF_MSG_LINK, "START TRAFFIC\n");
 467         return bnx2x_func_state_change(bp, &func_params);
 468 }
 469
 470 static void bnx2x_dcbx_2cos_limit_update_ets_config(struct bnx2x *bp)
 471 {
 472         struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets);
 473         int rc = 0;
 474
 475         if (ets->num_of_cos == 0 || ets->num_of_cos > DCBX_COS_MAX_NUM_E2) {
 476                 BNX2X_ERR("Illegal number of COSes %d\n", ets->num_of_cos);
 477                 return;
 478         }
 479
 480         /* valid COS entries */
 481         if (ets->num_of_cos == 1)   /* no ETS */
 482                 return;
 483
 484         /* sanity */
 485         if (((BNX2X_DCBX_STRICT_INVALID == ets->cos_params[0].strict) &&
 486              (DCBX_INVALID_COS_BW == ets->cos_params[0].bw_tbl)) ||
 487             ((BNX2X_DCBX_STRICT_INVALID == ets->cos_params[1].strict) &&
 488              (DCBX_INVALID_COS_BW == ets->cos_params[1].bw_tbl))) {
 489                 BNX2X_ERR("all COS should have at least bw_limit or strict"
 490                             "ets->cos_params[0].strict= %x"
 491                             "ets->cos_params[0].bw_tbl= %x"
 492                             "ets->cos_params[1].strict= %x"
 493                             "ets->cos_params[1].bw_tbl= %x",
 494                           ets->cos_params[0].strict,
 495                           ets->cos_params[0].bw_tbl,
 496                           ets->cos_params[1].strict,
 497                           ets->cos_params[1].bw_tbl);
 498                 return;
 499         }
 500         /* If we join a group and there is bw_tbl and strict then bw rules */
 501         if ((DCBX_INVALID_COS_BW != ets->cos_params[0].bw_tbl) &&
 502             (DCBX_INVALID_COS_BW != ets->cos_params[1].bw_tbl)) {
 503                 u32 bw_tbl_0 = ets->cos_params[0].bw_tbl;
 504                 u32 bw_tbl_1 = ets->cos_params[1].bw_tbl;
 505                 /* Do not allow 0-100 configuration
 506                  * since PBF does not support it
 507                  * force 1-99 instead
 508                  */
 509                 if (bw_tbl_0 == 0) {
 510                         bw_tbl_0 = 1;
 511                         bw_tbl_1 = 99;
 512                 } else if (bw_tbl_1 == 0) {
 513                         bw_tbl_1 = 1;
 514                         bw_tbl_0 = 99;
 515                 }
 516
 517                 bnx2x_ets_bw_limit(&bp->link_params, bw_tbl_0, bw_tbl_1);
 518         } else {
 519                 if (ets->cos_params[0].strict == BNX2X_DCBX_STRICT_COS_HIGHEST)
 520                         rc = bnx2x_ets_strict(&bp->link_params, 0);
 521                 else if (ets->cos_params[1].strict
 522                                         == BNX2X_DCBX_STRICT_COS_HIGHEST)
 523                         rc = bnx2x_ets_strict(&bp->link_params, 1);
 524                 if (rc)
 525                         BNX2X_ERR("update_ets_params failed\n");
 526         }
 527 }
 528
 529 /*
 530  * In E3B0 the configuration may have more than 2 COS.
 531  */
 532 void bnx2x_dcbx_update_ets_config(struct bnx2x *bp)
 533 {
 534         struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets);
 535         struct bnx2x_ets_params ets_params = { 0 };
 536         u8 i;
 537
 538         ets_params.num_of_cos = ets->num_of_cos;
 539
 540         for (i = 0; i < ets->num_of_cos; i++) {
 541                 /* COS is SP */
 542                 if (ets->cos_params[i].strict != BNX2X_DCBX_STRICT_INVALID) {
 543                         if (ets->cos_params[i].bw_tbl != DCBX_INVALID_COS_BW) {
 544                                 BNX2X_ERR("COS can't be not BW and not SP\n");
 545                                 return;
 546                         }
 547
 548                         ets_params.cos[i].state = bnx2x_cos_state_strict;
 549                         ets_params.cos[i].params.sp_params.pri =
 550                                                 ets->cos_params[i].strict;
 551                 } else { /* COS is BW */
 552                         if (ets->cos_params[i].bw_tbl == DCBX_INVALID_COS_BW) {
 553                                 BNX2X_ERR("COS can't be not BW and not SP\n");
 554                                 return;
 555                         }
 556                         ets_params.cos[i].state = bnx2x_cos_state_bw;
 557                         ets_params.cos[i].params.bw_params.bw =
 558                                                 (u8)ets->cos_params[i].bw_tbl;
 559                 }
 560         }
 561
 562         /* Configure the ETS in HW */
 563         if (bnx2x_ets_e3b0_config(&bp->link_params, &bp->link_vars,
 564                                   &ets_params)) {
 565                 BNX2X_ERR("bnx2x_ets_e3b0_config failed\n");
 566                 bnx2x_ets_disabled(&bp->link_params, &bp->link_vars);
 567         }
 568 }
 569
 570 static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp)
 571 {
 572         bnx2x_ets_disabled(&bp->link_params, &bp->link_vars);
 573
 574         if (!bp->dcbx_port_params.ets.enabled ||
 575             (bp->dcbx_error & DCBX_REMOTE_MIB_ERROR))
 576                 return;
 577
 578         if (CHIP_IS_E3B0(bp))
 579                 bnx2x_dcbx_update_ets_config(bp);
 580         else
 581                 bnx2x_dcbx_2cos_limit_update_ets_config(bp);
 582 }
 583
 584 #ifdef BCM_DCBNL
 585 static int bnx2x_dcbx_read_shmem_remote_mib(struct bnx2x *bp)
 586 {
 587         struct lldp_remote_mib remote_mib = {0};
 588         u32 dcbx_remote_mib_offset = SHMEM2_RD(bp, dcbx_remote_mib_offset);
 589         int rc;
 590
 591         DP(NETIF_MSG_LINK, "dcbx_remote_mib_offset 0x%x\n",
 592            dcbx_remote_mib_offset);
 593
 594         if (SHMEM_DCBX_REMOTE_MIB_NONE == dcbx_remote_mib_offset) {
 595                 BNX2X_ERR("FW doesn't support dcbx_remote_mib_offset\n");
 596                 return -EINVAL;
 597         }
 598
 599         rc = bnx2x_dcbx_read_mib(bp, (u32 *)&remote_mib, dcbx_remote_mib_offset,
 600                                  DCBX_READ_REMOTE_MIB);
 601
 602         if (rc) {
 603                 BNX2X_ERR("Faild to read remote mib from FW\n");
 604                 return rc;
 605         }
 606
 607         /* save features and flags */
 608         bp->dcbx_remote_feat = remote_mib.features;
 609         bp->dcbx_remote_flags = remote_mib.flags;
 610         return 0;
 611 }
 612 #endif
 613
 614 static int bnx2x_dcbx_read_shmem_neg_results(struct bnx2x *bp)
 615 {
 616         struct lldp_local_mib local_mib = {0};
 617         u32 dcbx_neg_res_offset = SHMEM2_RD(bp, dcbx_neg_res_offset);
 618         int rc;
 619
 620         DP(NETIF_MSG_LINK, "dcbx_neg_res_offset 0x%x\n", dcbx_neg_res_offset);
 621
 622         if (SHMEM_DCBX_NEG_RES_NONE == dcbx_neg_res_offset) {
 623                 BNX2X_ERR("FW doesn't support dcbx_neg_res_offset\n");
 624                 return -EINVAL;
 625         }
 626
 627         rc = bnx2x_dcbx_read_mib(bp, (u32 *)&local_mib, dcbx_neg_res_offset,
 628                                  DCBX_READ_LOCAL_MIB);
 629
 630         if (rc) {
 631                 BNX2X_ERR("Faild to read local mib from FW\n");
 632                 return rc;
 633         }
 634
 635         /* save features and error */
 636         bp->dcbx_local_feat = local_mib.features;
 637         bp->dcbx_error = local_mib.error;
 638         return 0;
 639 }
 640
 641
 642 #ifdef BCM_DCBNL
 643 static inline
 644 u8 bnx2x_dcbx_dcbnl_app_up(struct dcbx_app_priority_entry *ent)
 645 {
 646         u8 pri;
 647
 648         /* Choose the highest priority */
 649         for (pri = MAX_PFC_PRIORITIES - 1; pri > 0; pri--)
 650                 if (ent->pri_bitmap & (1 << pri))
 651                         break;
 652         return pri;
 653 }
 654
 655 static inline
 656 u8 bnx2x_dcbx_dcbnl_app_idtype(struct dcbx_app_priority_entry *ent)
 657 {
 658         return ((ent->appBitfield & DCBX_APP_ENTRY_SF_MASK) ==
 659                 DCBX_APP_SF_PORT) ? DCB_APP_IDTYPE_PORTNUM :
 660                 DCB_APP_IDTYPE_ETHTYPE;
 661 }
 662
 663 int bnx2x_dcbnl_update_applist(struct bnx2x *bp, bool delall)
 664 {
 665         int i, err = 0;
 666
 667         for (i = 0; i < DCBX_MAX_APP_PROTOCOL && err == 0; i++) {
 668                 struct dcbx_app_priority_entry *ent =
 669                         &bp->dcbx_local_feat.app.app_pri_tbl[i];
 670
 671                 if (ent->appBitfield & DCBX_APP_ENTRY_VALID) {
 672                         u8 up = bnx2x_dcbx_dcbnl_app_up(ent);
 673
 674                         /* avoid invalid user-priority */
 675                         if (up) {
 676                                 struct dcb_app app;
 677                                 app.selector = bnx2x_dcbx_dcbnl_app_idtype(ent);
 678                                 app.protocol = ent->app_id;
 679                                 app.priority = delall ? 0 : up;
 680                                 err = dcb_setapp(bp->dev, &app);
 681                         }
 682                 }
 683         }
 684         return err;
 685 }
 686 #endif
 687
 688 static inline void bnx2x_update_drv_flags(struct bnx2x *bp, u32 flags, u32 set)
 689 {
 690         if (SHMEM2_HAS(bp, drv_flags)) {
 691                 u32 drv_flags;
 692                 bnx2x_acquire_hw_lock(bp, HW_LOCK_DRV_FLAGS);
 693                 drv_flags = SHMEM2_RD(bp, drv_flags);
 694
 695                 if (set)
 696                         SET_FLAGS(drv_flags, flags);
 697                 else
 698                         RESET_FLAGS(drv_flags, flags);
 699
 700                 SHMEM2_WR(bp, drv_flags, drv_flags);
 701                 DP(NETIF_MSG_HW, "drv_flags 0x%08x\n", drv_flags);
 702                 bnx2x_release_hw_lock(bp, HW_LOCK_DRV_FLAGS);
 703         }
 704 }
 705
 706 static inline void bnx2x_dcbx_update_tc_mapping(struct bnx2x *bp)
 707 {
 708         u8 prio, cos;
 709         for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++) {
 710                 for (prio = 0; prio < BNX2X_MAX_PRIORITY; prio++) {
 711                         if (bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask
 712                             & (1 << prio)) {
 713                                 bp->prio_to_cos[prio] = cos;
 714                                 DP(NETIF_MSG_LINK,
 715                                    "tx_mapping %d --> %d\n", prio, cos);
 716                         }
 717                 }
 718         }
 719
 720         /* setup tc must be called under rtnl lock, but we can't take it here
 721          * as we are handling an attetntion on a work queue which must be
 722          * flushed at some rtnl-locked contexts (e.g. if down)
 723          */
 724         if (!test_and_set_bit(BNX2X_SP_RTNL_SETUP_TC, &bp->sp_rtnl_state))
 725                 schedule_delayed_work(&bp->sp_rtnl_task, 0);
 726 }
 727
 728 void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state)
 729 {
 730         switch (state) {
 731         case BNX2X_DCBX_STATE_NEG_RECEIVED:
 732                 {
 733                         DP(NETIF_MSG_LINK, "BNX2X_DCBX_STATE_NEG_RECEIVED\n");
 734 #ifdef BCM_DCBNL
 735                         /**
 736                          * Delete app tlvs from dcbnl before reading new
 737                          * negotiation results
 738                          */
 739                         bnx2x_dcbnl_update_applist(bp, true);
 740
 741                         /* Read rmeote mib if dcbx is in the FW */
 742                         if (bnx2x_dcbx_read_shmem_remote_mib(bp))
 743                                 return;
 744 #endif
 745                         /* Read neg results if dcbx is in the FW */
 746                         if (bnx2x_dcbx_read_shmem_neg_results(bp))
 747                                 return;
 748
 749                         bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat,
 750                                                   bp->dcbx_error);
 751
 752                         bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat,
 753                                                  bp->dcbx_error);
 754
 755                         /* mark DCBX result for PMF migration */
 756                         bnx2x_update_drv_flags(bp, DRV_FLAGS_DCB_CONFIGURED, 1);
 757 #ifdef BCM_DCBNL
 758                         /**
 759                          * Add new app tlvs to dcbnl
 760                          */
 761                         bnx2x_dcbnl_update_applist(bp, false);
 762 #endif
 763                         bnx2x_dcbx_stop_hw_tx(bp);
 764
 765                         /* reconfigure the netdevice with the results of the new
 766                          * dcbx negotiation.
 767                          */
 768                         bnx2x_dcbx_update_tc_mapping(bp);
 769
 770                         return;
 771                 }
 772         case BNX2X_DCBX_STATE_TX_PAUSED:
 773                 DP(NETIF_MSG_LINK, "BNX2X_DCBX_STATE_TX_PAUSED\n");
 774                 bnx2x_pfc_set_pfc(bp);
 775
 776                 bnx2x_dcbx_update_ets_params(bp);
 777                 bnx2x_dcbx_resume_hw_tx(bp);
 778                 return;
 779         case BNX2X_DCBX_STATE_TX_RELEASED:
 780                 DP(NETIF_MSG_LINK, "BNX2X_DCBX_STATE_TX_RELEASED\n");
 781                 bnx2x_fw_command(bp, DRV_MSG_CODE_DCBX_PMF_DRV_OK, 0);
 782 #ifdef BCM_DCBNL
 783                 /*
 784                  * Send a notification for the new negotiated parameters
 785                  */
 786                 dcbnl_cee_notify(bp->dev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0);
 787 #endif
 788                 return;
 789         default:
 790                 BNX2X_ERR("Unknown DCBX_STATE\n");
 791         }
 792 }
 793
 794 #define LLDP_ADMIN_MIB_OFFSET(bp)       (PORT_MAX*sizeof(struct lldp_params) + \
 795                                       BP_PORT(bp)*sizeof(struct lldp_admin_mib))
 796
 797 static void bnx2x_dcbx_admin_mib_updated_params(struct bnx2x *bp,
 798                                 u32 dcbx_lldp_params_offset)
 799 {
 800         struct lldp_admin_mib admin_mib;
 801         u32 i, other_traf_type = PREDEFINED_APP_IDX_MAX, traf_type = 0;
 802         u32 offset = dcbx_lldp_params_offset + LLDP_ADMIN_MIB_OFFSET(bp);
 803
 804         /*shortcuts*/
 805         struct dcbx_features *af = &admin_mib.features;
 806         struct bnx2x_config_dcbx_params *dp = &bp->dcbx_config_params;
 807
 808         memset(&admin_mib, 0, sizeof(struct lldp_admin_mib));
 809
 810         /* Read the data first */
 811         bnx2x_read_data(bp, (u32 *)&admin_mib, offset,
 812                         sizeof(struct lldp_admin_mib));
 813
 814         if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON)
 815                 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED);
 816         else
 817                 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED);
 818
 819         if (dp->overwrite_settings == BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE) {
 820
 821                 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_CEE_VERSION_MASK);
 822                 admin_mib.ver_cfg_flags |=
 823                         (dp->admin_dcbx_version << DCBX_CEE_VERSION_SHIFT) &
 824                          DCBX_CEE_VERSION_MASK;
 825
 826                 af->ets.enabled = (u8)dp->admin_ets_enable;
 827
 828                 af->pfc.enabled = (u8)dp->admin_pfc_enable;
 829
 830                 /* FOR IEEE dp->admin_tc_supported_tx_enable */
 831                 if (dp->admin_ets_configuration_tx_enable)
 832                         SET_FLAGS(admin_mib.ver_cfg_flags,
 833                                   DCBX_ETS_CONFIG_TX_ENABLED);
 834                 else
 835                         RESET_FLAGS(admin_mib.ver_cfg_flags,
 836                                     DCBX_ETS_CONFIG_TX_ENABLED);
 837                 /* For IEEE admin_ets_recommendation_tx_enable */
 838                 if (dp->admin_pfc_tx_enable)
 839                         SET_FLAGS(admin_mib.ver_cfg_flags,
 840                                   DCBX_PFC_CONFIG_TX_ENABLED);
 841                 else
 842                         RESET_FLAGS(admin_mib.ver_cfg_flags,
 843                                   DCBX_PFC_CONFIG_TX_ENABLED);
 844
 845                 if (dp->admin_application_priority_tx_enable)
 846                         SET_FLAGS(admin_mib.ver_cfg_flags,
 847                                   DCBX_APP_CONFIG_TX_ENABLED);
 848                 else
 849                         RESET_FLAGS(admin_mib.ver_cfg_flags,
 850                                   DCBX_APP_CONFIG_TX_ENABLED);
 851
 852                 if (dp->admin_ets_willing)
 853                         SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING);
 854                 else
 855                         RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING);
 856                 /* For IEEE admin_ets_reco_valid */
 857                 if (dp->admin_pfc_willing)
 858                         SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING);
 859                 else
 860                         RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING);
 861
 862                 if (dp->admin_app_priority_willing)
 863                         SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING);
 864                 else
 865                         RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING);
 866
 867                 for (i = 0 ; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++) {
 868                         DCBX_PG_BW_SET(af->ets.pg_bw_tbl, i,
 869                                 (u8)dp->admin_configuration_bw_precentage[i]);
 870
 871                         DP(NETIF_MSG_LINK, "pg_bw_tbl[%d] = %02x\n",
 872                            i, DCBX_PG_BW_GET(af->ets.pg_bw_tbl, i));
 873                 }
 874
 875                 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) {
 876                         DCBX_PRI_PG_SET(af->ets.pri_pg_tbl, i,
 877                                         (u8)dp->admin_configuration_ets_pg[i]);
 878
 879                         DP(NETIF_MSG_LINK, "pri_pg_tbl[%d] = %02x\n",
 880                            i, DCBX_PRI_PG_GET(af->ets.pri_pg_tbl, i));
 881                 }
 882
 883                 /*For IEEE admin_recommendation_bw_precentage
 884                  *For IEEE admin_recommendation_ets_pg */
 885                 af->pfc.pri_en_bitmap = (u8)dp->admin_pfc_bitmap;
 886                 for (i = 0; i < 4; i++) {
 887                         if (dp->admin_priority_app_table[i].valid) {
 888                                 struct bnx2x_admin_priority_app_table *table =
 889                                         dp->admin_priority_app_table;
 890                                 if ((ETH_TYPE_FCOE == table[i].app_id) &&
 891                                    (TRAFFIC_TYPE_ETH == table[i].traffic_type))
 892                                         traf_type = FCOE_APP_IDX;
 893                                 else if ((TCP_PORT_ISCSI == table[i].app_id) &&
 894                                    (TRAFFIC_TYPE_PORT == table[i].traffic_type))
 895                                         traf_type = ISCSI_APP_IDX;
 896                                 else
 897                                         traf_type = other_traf_type++;
 898
 899                                 af->app.app_pri_tbl[traf_type].app_id =
 900                                         table[i].app_id;
 901
 902                                 af->app.app_pri_tbl[traf_type].pri_bitmap =
 903                                         (u8)(1 << table[i].priority);
 904
 905                                 af->app.app_pri_tbl[traf_type].appBitfield =
 906                                     (DCBX_APP_ENTRY_VALID);
 907
 908                                 af->app.app_pri_tbl[traf_type].appBitfield |=
 909                                    (TRAFFIC_TYPE_ETH == table[i].traffic_type) ?
 910                                         DCBX_APP_SF_ETH_TYPE : DCBX_APP_SF_PORT;
 911                         }
 912                 }
 913
 914                 af->app.default_pri = (u8)dp->admin_default_priority;
 915
 916         }
 917
 918         /* Write the data. */
 919         bnx2x_write_data(bp, (u32 *)&admin_mib, offset,
 920                          sizeof(struct lldp_admin_mib));
 921
 922 }
 923
 924 void bnx2x_dcbx_set_state(struct bnx2x *bp, bool dcb_on, u32 dcbx_enabled)
 925 {
 926         if (!CHIP_IS_E1x(bp) && !CHIP_IS_E3(bp)) {
 927                 bp->dcb_state = dcb_on;
 928                 bp->dcbx_enabled = dcbx_enabled;
 929         } else {
 930                 bp->dcb_state = false;
 931                 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_INVALID;
 932         }
 933         DP(NETIF_MSG_LINK, "DCB state [%s:%s]\n",
 934            dcb_on ? "ON" : "OFF",
 935            dcbx_enabled == BNX2X_DCBX_ENABLED_OFF ? "user-mode" :
 936            dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF ? "on-chip static" :
 937            dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON ?
 938            "on-chip with negotiation" : "invalid");
 939 }
 940
 941 void bnx2x_dcbx_init_params(struct bnx2x *bp)
 942 {
 943         bp->dcbx_config_params.admin_dcbx_version = 0x0; /* 0 - CEE; 1 - IEEE */
 944         bp->dcbx_config_params.admin_ets_willing = 1;
 945         bp->dcbx_config_params.admin_pfc_willing = 1;
 946         bp->dcbx_config_params.overwrite_settings = 1;
 947         bp->dcbx_config_params.admin_ets_enable = 1;
 948         bp->dcbx_config_params.admin_pfc_enable = 1;
 949         bp->dcbx_config_params.admin_tc_supported_tx_enable = 1;
 950         bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
 951         bp->dcbx_config_params.admin_pfc_tx_enable = 1;
 952         bp->dcbx_config_params.admin_application_priority_tx_enable = 1;
 953         bp->dcbx_config_params.admin_ets_reco_valid = 1;
 954         bp->dcbx_config_params.admin_app_priority_willing = 1;
 955         bp->dcbx_config_params.admin_configuration_bw_precentage[0] = 00;
 956         bp->dcbx_config_params.admin_configuration_bw_precentage[1] = 50;
 957         bp->dcbx_config_params.admin_configuration_bw_precentage[2] = 50;
 958         bp->dcbx_config_params.admin_configuration_bw_precentage[3] = 0;
 959         bp->dcbx_config_params.admin_configuration_bw_precentage[4] = 0;
 960         bp->dcbx_config_params.admin_configuration_bw_precentage[5] = 0;
 961         bp->dcbx_config_params.admin_configuration_bw_precentage[6] = 0;
 962         bp->dcbx_config_params.admin_configuration_bw_precentage[7] = 0;
 963         bp->dcbx_config_params.admin_configuration_ets_pg[0] = 1;
 964         bp->dcbx_config_params.admin_configuration_ets_pg[1] = 0;
 965         bp->dcbx_config_params.admin_configuration_ets_pg[2] = 0;
 966         bp->dcbx_config_params.admin_configuration_ets_pg[3] = 2;
 967         bp->dcbx_config_params.admin_configuration_ets_pg[4] = 0;
 968         bp->dcbx_config_params.admin_configuration_ets_pg[5] = 0;
 969         bp->dcbx_config_params.admin_configuration_ets_pg[6] = 0;
 970         bp->dcbx_config_params.admin_configuration_ets_pg[7] = 0;
 971         bp->dcbx_config_params.admin_recommendation_bw_precentage[0] = 0;
 972         bp->dcbx_config_params.admin_recommendation_bw_precentage[1] = 1;
 973         bp->dcbx_config_params.admin_recommendation_bw_precentage[2] = 2;
 974         bp->dcbx_config_params.admin_recommendation_bw_precentage[3] = 0;
 975         bp->dcbx_config_params.admin_recommendation_bw_precentage[4] = 7;
 976         bp->dcbx_config_params.admin_recommendation_bw_precentage[5] = 5;
 977         bp->dcbx_config_params.admin_recommendation_bw_precentage[6] = 6;
 978         bp->dcbx_config_params.admin_recommendation_bw_precentage[7] = 7;
 979         bp->dcbx_config_params.admin_recommendation_ets_pg[0] = 0;
 980         bp->dcbx_config_params.admin_recommendation_ets_pg[1] = 1;
 981         bp->dcbx_config_params.admin_recommendation_ets_pg[2] = 2;
 982         bp->dcbx_config_params.admin_recommendation_ets_pg[3] = 3;
 983         bp->dcbx_config_params.admin_recommendation_ets_pg[4] = 4;
 984         bp->dcbx_config_params.admin_recommendation_ets_pg[5] = 5;
 985         bp->dcbx_config_params.admin_recommendation_ets_pg[6] = 6;
 986         bp->dcbx_config_params.admin_recommendation_ets_pg[7] = 7;
 987         bp->dcbx_config_params.admin_pfc_bitmap = 0x8; /* FCoE(3) enable */
 988         bp->dcbx_config_params.admin_priority_app_table[0].valid = 1;
 989         bp->dcbx_config_params.admin_priority_app_table[1].valid = 1;
 990         bp->dcbx_config_params.admin_priority_app_table[2].valid = 0;
 991         bp->dcbx_config_params.admin_priority_app_table[3].valid = 0;
 992         bp->dcbx_config_params.admin_priority_app_table[0].priority = 3;
 993         bp->dcbx_config_params.admin_priority_app_table[1].priority = 0;
 994         bp->dcbx_config_params.admin_priority_app_table[2].priority = 0;
 995         bp->dcbx_config_params.admin_priority_app_table[3].priority = 0;
 996         bp->dcbx_config_params.admin_priority_app_table[0].traffic_type = 0;
 997         bp->dcbx_config_params.admin_priority_app_table[1].traffic_type = 1;
 998         bp->dcbx_config_params.admin_priority_app_table[2].traffic_type = 0;
 999         bp->dcbx_config_params.admin_priority_app_table[3].traffic_type = 0;
1000         bp->dcbx_config_params.admin_priority_app_table[0].app_id = 0x8906;
1001         bp->dcbx_config_params.admin_priority_app_table[1].app_id = 3260;
1002         bp->dcbx_config_params.admin_priority_app_table[2].app_id = 0;
1003         bp->dcbx_config_params.admin_priority_app_table[3].app_id = 0;
1004         bp->dcbx_config_params.admin_default_priority =
1005                 bp->dcbx_config_params.admin_priority_app_table[1].priority;
1006 }
1007
1008 void bnx2x_dcbx_init(struct bnx2x *bp)
1009 {
1010         u32 dcbx_lldp_params_offset = SHMEM_LLDP_DCBX_PARAMS_NONE;
1011
1012         if (bp->dcbx_enabled <= 0)
1013                 return;
1014
1015         /* validate:
1016          * chip of good for dcbx version,
1017          * dcb is wanted
1018          * the function is pmf
1019          * shmem2 contains DCBX support fields
1020          */
1021         DP(NETIF_MSG_LINK, "dcb_state %d bp->port.pmf %d\n",
1022            bp->dcb_state, bp->port.pmf);
1023
1024         if (bp->dcb_state == BNX2X_DCB_STATE_ON && bp->port.pmf &&
1025             SHMEM2_HAS(bp, dcbx_lldp_params_offset)) {
1026                 dcbx_lldp_params_offset =
1027                         SHMEM2_RD(bp, dcbx_lldp_params_offset);
1028
1029                 DP(NETIF_MSG_LINK, "dcbx_lldp_params_offset 0x%x\n",
1030                    dcbx_lldp_params_offset);
1031
1032                 bnx2x_update_drv_flags(bp, DRV_FLAGS_DCB_CONFIGURED, 0);
1033
1034                 if (SHMEM_LLDP_DCBX_PARAMS_NONE != dcbx_lldp_params_offset) {
1035                         bnx2x_dcbx_admin_mib_updated_params(bp,
1036                                 dcbx_lldp_params_offset);
1037
1038                         /* Let HW start negotiation */
1039                         bnx2x_fw_command(bp,
1040                                          DRV_MSG_CODE_DCBX_ADMIN_PMF_MSG, 0);
1041                 }
1042         }
1043 }
1044 static void
1045 bnx2x_dcbx_print_cos_params(struct bnx2x *bp,
1046                             struct bnx2x_func_tx_start_params *pfc_fw_cfg)
1047 {
1048         u8 pri = 0;
1049         u8 cos = 0;
1050
1051         DP(NETIF_MSG_LINK,
1052            "pfc_fw_cfg->dcb_version %x\n", pfc_fw_cfg->dcb_version);
1053         DP(NETIF_MSG_LINK,
1054            "pdev->params.dcbx_port_params.pfc."
1055            "priority_non_pauseable_mask %x\n",
1056            bp->dcbx_port_params.pfc.priority_non_pauseable_mask);
1057
1058         for (cos = 0 ; cos < bp->dcbx_port_params.ets.num_of_cos ; cos++) {
1059                 DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets."
1060                    "cos_params[%d].pri_bitmask %x\n", cos,
1061                    bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask);
1062
1063                 DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets."
1064                    "cos_params[%d].bw_tbl %x\n", cos,
1065                    bp->dcbx_port_params.ets.cos_params[cos].bw_tbl);
1066
1067                 DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets."
1068                    "cos_params[%d].strict %x\n", cos,
1069                    bp->dcbx_port_params.ets.cos_params[cos].strict);
1070
1071                 DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets."
1072                    "cos_params[%d].pauseable %x\n", cos,
1073                    bp->dcbx_port_params.ets.cos_params[cos].pauseable);
1074         }
1075
1076         for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) {
1077                 DP(NETIF_MSG_LINK,
1078                    "pfc_fw_cfg->traffic_type_to_priority_cos[%d]."
1079                    "priority %x\n", pri,
1080                    pfc_fw_cfg->traffic_type_to_priority_cos[pri].priority);
1081
1082                 DP(NETIF_MSG_LINK,
1083                    "pfc_fw_cfg->traffic_type_to_priority_cos[%d].cos %x\n",
1084                    pri, pfc_fw_cfg->traffic_type_to_priority_cos[pri].cos);
1085         }
1086 }
1087
1088 /* fills help_data according to pg_info */
1089 static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp,
1090                                             u32 *pg_pri_orginal_spread,
1091                                             struct pg_help_data *help_data)
1092 {
1093         bool pg_found  = false;
1094         u32 i, traf_type, add_traf_type, add_pg;
1095         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1096         struct pg_entry_help_data *data = help_data->data; /*shotcut*/
1097
1098         /* Set to invalid */
1099         for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++)
1100                 data[i].pg = DCBX_ILLEGAL_PG;
1101
1102         for (add_traf_type = 0;
1103              add_traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX; add_traf_type++) {
1104                 pg_found = false;
1105                 if (ttp[add_traf_type] < MAX_PFC_PRIORITIES) {
1106                         add_pg = (u8)pg_pri_orginal_spread[ttp[add_traf_type]];
1107                         for (traf_type = 0;
1108                              traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1109                              traf_type++) {
1110                                 if (data[traf_type].pg == add_pg) {
1111                                         if (!(data[traf_type].pg_priority &
1112                                              (1 << ttp[add_traf_type])))
1113                                                 data[traf_type].
1114                                                         num_of_dif_pri++;
1115                                         data[traf_type].pg_priority |=
1116                                                 (1 << ttp[add_traf_type]);
1117                                         pg_found = true;
1118                                         break;
1119                                 }
1120                         }
1121                         if (false == pg_found) {
1122                                 data[help_data->num_of_pg].pg = add_pg;
1123                                 data[help_data->num_of_pg].pg_priority =
1124                                                 (1 << ttp[add_traf_type]);
1125                                 data[help_data->num_of_pg].num_of_dif_pri = 1;
1126                                 help_data->num_of_pg++;
1127                         }
1128                 }
1129                 DP(NETIF_MSG_LINK,
1130                    "add_traf_type %d pg_found %s num_of_pg %d\n",
1131                    add_traf_type, (false == pg_found) ? "NO" : "YES",
1132                    help_data->num_of_pg);
1133         }
1134 }
1135
1136 static void bnx2x_dcbx_ets_disabled_entry_data(struct bnx2x *bp,
1137                                                struct cos_help_data *cos_data,
1138                                                u32 pri_join_mask)
1139 {
1140         /* Only one priority than only one COS */
1141         cos_data->data[0].pausable =
1142                 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1143         cos_data->data[0].pri_join_mask = pri_join_mask;
1144         cos_data->data[0].cos_bw = 100;
1145         cos_data->num_of_cos = 1;
1146 }
1147
1148 static inline void bnx2x_dcbx_add_to_cos_bw(struct bnx2x *bp,
1149                                             struct cos_entry_help_data *data,
1150                                             u8 pg_bw)
1151 {
1152         if (data->cos_bw == DCBX_INVALID_COS_BW)
1153                 data->cos_bw = pg_bw;
1154         else
1155                 data->cos_bw += pg_bw;
1156 }
1157
1158 static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp,
1159                         struct cos_help_data *cos_data,
1160                         u32 *pg_pri_orginal_spread,
1161                         struct dcbx_ets_feature *ets)
1162 {
1163         u32     pri_tested      = 0;
1164         u8      i               = 0;
1165         u8      entry           = 0;
1166         u8      pg_entry        = 0;
1167         u8      num_of_pri      = LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1168
1169         cos_data->data[0].pausable = true;
1170         cos_data->data[1].pausable = false;
1171         cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0;
1172
1173         for (i = 0 ; i < num_of_pri ; i++) {
1174                 pri_tested = 1 << bp->dcbx_port_params.
1175                                         app.traffic_type_priority[i];
1176
1177                 if (pri_tested & DCBX_PFC_PRI_NON_PAUSE_MASK(bp)) {
1178                         cos_data->data[1].pri_join_mask |= pri_tested;
1179                         entry = 1;
1180                 } else {
1181                         cos_data->data[0].pri_join_mask |= pri_tested;
1182                         entry = 0;
1183                 }
1184                 pg_entry = (u8)pg_pri_orginal_spread[bp->dcbx_port_params.
1185                                                 app.traffic_type_priority[i]];
1186                 /* There can be only one strict pg */
1187                 if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES)
1188                         bnx2x_dcbx_add_to_cos_bw(bp, &cos_data->data[entry],
1189                                 DCBX_PG_BW_GET(ets->pg_bw_tbl, pg_entry));
1190                 else
1191                         /* If we join a group and one is strict
1192                          * than the bw rulls */
1193                         cos_data->data[entry].strict =
1194                                                 BNX2X_DCBX_STRICT_COS_HIGHEST;
1195         }
1196         if ((0 == cos_data->data[0].pri_join_mask) &&
1197             (0 == cos_data->data[1].pri_join_mask))
1198                 BNX2X_ERR("dcbx error: Both groups must have priorities\n");
1199 }
1200
1201
1202 #ifndef POWER_OF_2
1203 #define POWER_OF_2(x)   ((0 != x) && (0 == (x & (x-1))))
1204 #endif
1205
1206 static void bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params(struct bnx2x *bp,
1207                                               struct pg_help_data *pg_help_data,
1208                                               struct cos_help_data *cos_data,
1209                                               u32 pri_join_mask,
1210                                               u8 num_of_dif_pri)
1211 {
1212         u8 i = 0;
1213         u32 pri_tested = 0;
1214         u32 pri_mask_without_pri = 0;
1215         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1216         /*debug*/
1217         if (num_of_dif_pri == 1) {
1218                 bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data, pri_join_mask);
1219                 return;
1220         }
1221         /* single priority group */
1222         if (pg_help_data->data[0].pg < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1223                 /* If there are both pauseable and non-pauseable priorities,
1224                  * the pauseable priorities go to the first queue and
1225                  * the non-pauseable priorities go to the second queue.
1226                  */
1227                 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1228                         /* Pauseable */
1229                         cos_data->data[0].pausable = true;
1230                         /* Non pauseable.*/
1231                         cos_data->data[1].pausable = false;
1232
1233                         if (2 == num_of_dif_pri) {
1234                                 cos_data->data[0].cos_bw = 50;
1235                                 cos_data->data[1].cos_bw = 50;
1236                         }
1237
1238                         if (3 == num_of_dif_pri) {
1239                                 if (POWER_OF_2(DCBX_PFC_PRI_GET_PAUSE(bp,
1240                                                         pri_join_mask))) {
1241                                         cos_data->data[0].cos_bw = 33;
1242                                         cos_data->data[1].cos_bw = 67;
1243                                 } else {
1244                                         cos_data->data[0].cos_bw = 67;
1245                                         cos_data->data[1].cos_bw = 33;
1246                                 }
1247                         }
1248
1249                 } else if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask)) {
1250                         /* If there are only pauseable priorities,
1251                          * then one/two priorities go to the first queue
1252                          * and one priority goes to the second queue.
1253                          */
1254                         if (2 == num_of_dif_pri) {
1255                                 cos_data->data[0].cos_bw = 50;
1256                                 cos_data->data[1].cos_bw = 50;
1257                         } else {
1258                                 cos_data->data[0].cos_bw = 67;
1259                                 cos_data->data[1].cos_bw = 33;
1260                         }
1261                         cos_data->data[1].pausable = true;
1262                         cos_data->data[0].pausable = true;
1263                         /* All priorities except FCOE */
1264                         cos_data->data[0].pri_join_mask = (pri_join_mask &
1265                                 ((u8)~(1 << ttp[LLFC_TRAFFIC_TYPE_FCOE])));
1266                         /* Only FCOE priority.*/
1267                         cos_data->data[1].pri_join_mask =
1268                                 (1 << ttp[LLFC_TRAFFIC_TYPE_FCOE]);
1269                 } else
1270                         /* If there are only non-pauseable priorities,
1271                          * they will all go to the same queue.
1272                          */
1273                         bnx2x_dcbx_ets_disabled_entry_data(bp,
1274                                                 cos_data, pri_join_mask);
1275         } else {
1276                 /* priority group which is not BW limited (PG#15):*/
1277                 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1278                         /* If there are both pauseable and non-pauseable
1279                          * priorities, the pauseable priorities go to the first
1280                          * queue and the non-pauseable priorities
1281                          * go to the second queue.
1282                          */
1283                         if (DCBX_PFC_PRI_GET_PAUSE(bp, pri_join_mask) >
1284                             DCBX_PFC_PRI_GET_NON_PAUSE(bp, pri_join_mask)) {
1285                                 cos_data->data[0].strict =
1286                                         BNX2X_DCBX_STRICT_COS_HIGHEST;
1287                                 cos_data->data[1].strict =
1288                                         BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
1289                                                 BNX2X_DCBX_STRICT_COS_HIGHEST);
1290                         } else {
1291                                 cos_data->data[0].strict =
1292                                         BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
1293                                                 BNX2X_DCBX_STRICT_COS_HIGHEST);
1294                                 cos_data->data[1].strict =
1295                                         BNX2X_DCBX_STRICT_COS_HIGHEST;
1296                         }
1297                         /* Pauseable */
1298                         cos_data->data[0].pausable = true;
1299                         /* Non pause-able.*/
1300                         cos_data->data[1].pausable = false;
1301                 } else {
1302                         /* If there are only pauseable priorities or
1303                          * only non-pauseable,* the lower priorities go
1304                          * to the first queue and the higherpriorities go
1305                          * to the second queue.
1306                          */
1307                         cos_data->data[0].pausable =
1308                                 cos_data->data[1].pausable =
1309                                 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1310
1311                         for (i = 0 ; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++) {
1312                                 pri_tested = 1 << bp->dcbx_port_params.
1313                                         app.traffic_type_priority[i];
1314                                 /* Remove priority tested */
1315                                 pri_mask_without_pri =
1316                                         (pri_join_mask & ((u8)(~pri_tested)));
1317                                 if (pri_mask_without_pri < pri_tested)
1318                                         break;
1319                         }
1320
1321                         if (i == LLFC_DRIVER_TRAFFIC_TYPE_MAX)
1322                                 BNX2X_ERR("Invalid value for pri_join_mask -"
1323                                           " could not find a priority\n");
1324
1325                         cos_data->data[0].pri_join_mask = pri_mask_without_pri;
1326                         cos_data->data[1].pri_join_mask = pri_tested;
1327                         /* Both queues are strict priority,
1328                          * and that with the highest priority
1329                          * gets the highest strict priority in the arbiter.
1330                          */
1331                         cos_data->data[0].strict =
1332                                         BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
1333                                                 BNX2X_DCBX_STRICT_COS_HIGHEST);
1334                         cos_data->data[1].strict =
1335                                         BNX2X_DCBX_STRICT_COS_HIGHEST;
1336                 }
1337         }
1338 }
1339
1340 static void bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params(
1341                             struct bnx2x                *bp,
1342                             struct  pg_help_data        *pg_help_data,
1343                             struct dcbx_ets_feature     *ets,
1344                             struct cos_help_data        *cos_data,
1345                             u32                 *pg_pri_orginal_spread,
1346                             u32                         pri_join_mask,
1347                             u8                          num_of_dif_pri)
1348 {
1349         u8 i = 0;
1350         u8 pg[DCBX_COS_MAX_NUM_E2] = { 0 };
1351
1352         /* If there are both pauseable and non-pauseable priorities,
1353          * the pauseable priorities go to the first queue and
1354          * the non-pauseable priorities go to the second queue.
1355          */
1356         if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1357                 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp,
1358                                          pg_help_data->data[0].pg_priority) ||
1359                     IS_DCBX_PFC_PRI_MIX_PAUSE(bp,
1360                                          pg_help_data->data[1].pg_priority)) {
1361                         /* If one PG contains both pauseable and
1362                          * non-pauseable priorities then ETS is disabled.
1363                          */
1364                         bnx2x_dcbx_separate_pauseable_from_non(bp, cos_data,
1365                                         pg_pri_orginal_spread, ets);
1366                         bp->dcbx_port_params.ets.enabled = false;
1367                         return;
1368                 }
1369
1370                 /* Pauseable */
1371                 cos_data->data[0].pausable = true;
1372                 /* Non pauseable. */
1373                 cos_data->data[1].pausable = false;
1374                 if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp,
1375                                 pg_help_data->data[0].pg_priority)) {
1376                         /* 0 is pauseable */
1377                         cos_data->data[0].pri_join_mask =
1378                                 pg_help_data->data[0].pg_priority;
1379                         pg[0] = pg_help_data->data[0].pg;
1380                         cos_data->data[1].pri_join_mask =
1381                                 pg_help_data->data[1].pg_priority;
1382                         pg[1] = pg_help_data->data[1].pg;
1383                 } else {/* 1 is pauseable */
1384                         cos_data->data[0].pri_join_mask =
1385                                 pg_help_data->data[1].pg_priority;
1386                         pg[0] = pg_help_data->data[1].pg;
1387                         cos_data->data[1].pri_join_mask =
1388                                 pg_help_data->data[0].pg_priority;
1389                         pg[1] = pg_help_data->data[0].pg;
1390                 }
1391         } else {
1392                 /* If there are only pauseable priorities or
1393                  * only non-pauseable, each PG goes to a queue.
1394                  */
1395                 cos_data->data[0].pausable = cos_data->data[1].pausable =
1396                         IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1397                 cos_data->data[0].pri_join_mask =
1398                         pg_help_data->data[0].pg_priority;
1399                 pg[0] = pg_help_data->data[0].pg;
1400                 cos_data->data[1].pri_join_mask =
1401                         pg_help_data->data[1].pg_priority;
1402                 pg[1] = pg_help_data->data[1].pg;
1403         }
1404
1405         /* There can be only one strict pg */
1406         for (i = 0 ; i < ARRAY_SIZE(pg); i++) {
1407                 if (pg[i] < DCBX_MAX_NUM_PG_BW_ENTRIES)
1408                         cos_data->data[i].cos_bw =
1409                                 DCBX_PG_BW_GET(ets->pg_bw_tbl, pg[i]);
1410                 else
1411                         cos_data->data[i].strict =
1412                                                 BNX2X_DCBX_STRICT_COS_HIGHEST;
1413         }
1414 }
1415
1416 static int bnx2x_dcbx_join_pgs(
1417                               struct bnx2x            *bp,
1418                               struct dcbx_ets_feature *ets,
1419                               struct pg_help_data     *pg_help_data,
1420                               u8                      required_num_of_pg)
1421 {
1422         u8 entry_joined    = pg_help_data->num_of_pg - 1;
1423         u8 entry_removed   = entry_joined + 1;
1424         u8 pg_joined       = 0;
1425
1426         if (required_num_of_pg == 0 || ARRAY_SIZE(pg_help_data->data)
1427                                                 <= pg_help_data->num_of_pg) {
1428
1429                 BNX2X_ERR("required_num_of_pg can't be zero\n");
1430                 return -EINVAL;
1431         }
1432
1433         while (required_num_of_pg < pg_help_data->num_of_pg) {
1434                 entry_joined = pg_help_data->num_of_pg - 2;
1435                 entry_removed = entry_joined + 1;
1436                 /* protect index */
1437                 entry_removed %= ARRAY_SIZE(pg_help_data->data);
1438
1439                 pg_help_data->data[entry_joined].pg_priority |=
1440                         pg_help_data->data[entry_removed].pg_priority;
1441
1442                 pg_help_data->data[entry_joined].num_of_dif_pri +=
1443                         pg_help_data->data[entry_removed].num_of_dif_pri;
1444
1445                 if (pg_help_data->data[entry_joined].pg == DCBX_STRICT_PRI_PG ||
1446                     pg_help_data->data[entry_removed].pg == DCBX_STRICT_PRI_PG)
1447                         /* Entries joined strict priority rules */
1448                         pg_help_data->data[entry_joined].pg =
1449                                                         DCBX_STRICT_PRI_PG;
1450                 else {
1451                         /* Entries can be joined join BW */
1452                         pg_joined = DCBX_PG_BW_GET(ets->pg_bw_tbl,
1453                                         pg_help_data->data[entry_joined].pg) +
1454                                     DCBX_PG_BW_GET(ets->pg_bw_tbl,
1455                                         pg_help_data->data[entry_removed].pg);
1456
1457                         DCBX_PG_BW_SET(ets->pg_bw_tbl,
1458                                 pg_help_data->data[entry_joined].pg, pg_joined);
1459                 }
1460                 /* Joined the entries */
1461                 pg_help_data->num_of_pg--;
1462         }
1463
1464         return 0;
1465 }
1466
1467 static void bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params(
1468                               struct bnx2x              *bp,
1469                               struct pg_help_data       *pg_help_data,
1470                               struct dcbx_ets_feature   *ets,
1471                               struct cos_help_data      *cos_data,
1472                               u32                       *pg_pri_orginal_spread,
1473                               u32                       pri_join_mask,
1474                               u8                        num_of_dif_pri)
1475 {
1476         u8 i = 0;
1477         u32 pri_tested = 0;
1478         u8 entry = 0;
1479         u8 pg_entry = 0;
1480         bool b_found_strict = false;
1481         u8 num_of_pri = LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1482
1483         cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0;
1484         /* If there are both pauseable and non-pauseable priorities,
1485          * the pauseable priorities go to the first queue and the
1486          * non-pauseable priorities go to the second queue.
1487          */
1488         if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask))
1489                 bnx2x_dcbx_separate_pauseable_from_non(bp,
1490                                 cos_data, pg_pri_orginal_spread, ets);
1491         else {
1492                 /* If two BW-limited PG-s were combined to one queue,
1493                  * the BW is their sum.
1494                  *
1495                  * If there are only pauseable priorities or only non-pauseable,
1496                  * and there are both BW-limited and non-BW-limited PG-s,
1497                  * the BW-limited PG/s go to one queue and the non-BW-limited
1498                  * PG/s go to the second queue.
1499                  *
1500                  * If there are only pauseable priorities or only non-pauseable
1501                  * and all are BW limited, then two priorities go to the first
1502                  * queue and one priority goes to the second queue.
1503                  *
1504                  * We will join this two cases:
1505                  * if one is BW limited it will go to the secoend queue
1506                  * otherwise the last priority will get it
1507                  */
1508
1509                 cos_data->data[0].pausable = cos_data->data[1].pausable =
1510                         IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1511
1512                 for (i = 0 ; i < num_of_pri; i++) {
1513                         pri_tested = 1 << bp->dcbx_port_params.
1514                                 app.traffic_type_priority[i];
1515                         pg_entry = (u8)pg_pri_orginal_spread[bp->
1516                                 dcbx_port_params.app.traffic_type_priority[i]];
1517
1518                         if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1519                                 entry = 0;
1520
1521                                 if (i == (num_of_pri-1) &&
1522                                     false == b_found_strict)
1523                                         /* last entry will be handled separately
1524                                          * If no priority is strict than last
1525                                          * enty goes to last queue.*/
1526                                         entry = 1;
1527                                 cos_data->data[entry].pri_join_mask |=
1528                                                                 pri_tested;
1529                                 bnx2x_dcbx_add_to_cos_bw(bp,
1530                                         &cos_data->data[entry],
1531                                         DCBX_PG_BW_GET(ets->pg_bw_tbl,
1532                                                        pg_entry));
1533                         } else {
1534                                 b_found_strict = true;
1535                                 cos_data->data[1].pri_join_mask |= pri_tested;
1536                                 /* If we join a group and one is strict
1537                                  * than the bw rulls */
1538                                 cos_data->data[1].strict =
1539                                         BNX2X_DCBX_STRICT_COS_HIGHEST;
1540                         }
1541                 }
1542         }
1543 }
1544
1545
1546 static void bnx2x_dcbx_2cos_limit_cee_fill_cos_params(struct bnx2x *bp,
1547                                        struct pg_help_data *help_data,
1548                                        struct dcbx_ets_feature *ets,
1549                                        struct cos_help_data *cos_data,
1550                                        u32 *pg_pri_orginal_spread,
1551                                        u32 pri_join_mask,
1552                                        u8 num_of_dif_pri)
1553 {
1554
1555         /* default E2 settings */
1556         cos_data->num_of_cos = DCBX_COS_MAX_NUM_E2;
1557
1558         switch (help_data->num_of_pg) {
1559         case 1:
1560                 bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params(
1561                                                bp,
1562                                                help_data,
1563                                                cos_data,
1564                                                pri_join_mask,
1565                                                num_of_dif_pri);
1566                 break;
1567         case 2:
1568                 bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params(
1569                                             bp,
1570                                             help_data,
1571                                             ets,
1572                                             cos_data,
1573                                             pg_pri_orginal_spread,
1574                                             pri_join_mask,
1575                                             num_of_dif_pri);
1576                 break;
1577
1578         case 3:
1579                 bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params(
1580                                               bp,
1581                                               help_data,
1582                                               ets,
1583                                               cos_data,
1584                                               pg_pri_orginal_spread,
1585                                               pri_join_mask,
1586                                               num_of_dif_pri);
1587                 break;
1588         default:
1589                 BNX2X_ERR("Wrong pg_help_data.num_of_pg\n");
1590                 bnx2x_dcbx_ets_disabled_entry_data(bp,
1591                                                    cos_data, pri_join_mask);
1592         }
1593 }
1594
1595 static int bnx2x_dcbx_spread_strict_pri(struct bnx2x *bp,
1596                                         struct cos_help_data *cos_data,
1597                                         u8 entry,
1598                                         u8 num_spread_of_entries,
1599                                         u8 strict_app_pris)
1600 {
1601         u8 strict_pri = BNX2X_DCBX_STRICT_COS_HIGHEST;
1602         u8 num_of_app_pri = MAX_PFC_PRIORITIES;
1603         u8 app_pri_bit = 0;
1604
1605         while (num_spread_of_entries && num_of_app_pri > 0) {
1606                 app_pri_bit = 1 << (num_of_app_pri - 1);
1607                 if (app_pri_bit & strict_app_pris) {
1608                         struct cos_entry_help_data *data = &cos_data->
1609                                                                 data[entry];
1610                         num_spread_of_entries--;
1611                         if (num_spread_of_entries == 0) {
1612                                 /* last entry needed put all the entries left */
1613                                 data->cos_bw = DCBX_INVALID_COS_BW;
1614                                 data->strict = strict_pri;
1615                                 data->pri_join_mask = strict_app_pris;
1616                                 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1617                                                         data->pri_join_mask);
1618                         } else {
1619                                 strict_app_pris &= ~app_pri_bit;
1620
1621                                 data->cos_bw = DCBX_INVALID_COS_BW;
1622                                 data->strict = strict_pri;
1623                                 data->pri_join_mask = app_pri_bit;
1624                                 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1625                                                         data->pri_join_mask);
1626                         }
1627
1628                         strict_pri =
1629                             BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(strict_pri);
1630                         entry++;
1631                 }
1632
1633                 num_of_app_pri--;
1634         }
1635
1636         if (num_spread_of_entries)
1637                 return -EINVAL;
1638
1639         return 0;
1640 }
1641
1642 static u8 bnx2x_dcbx_cee_fill_strict_pri(struct bnx2x *bp,
1643                                          struct cos_help_data *cos_data,
1644                                          u8 entry,
1645                                          u8 num_spread_of_entries,
1646                                          u8 strict_app_pris)
1647 {
1648
1649         if (bnx2x_dcbx_spread_strict_pri(bp, cos_data, entry,
1650                                          num_spread_of_entries,
1651                                          strict_app_pris)) {
1652                 struct cos_entry_help_data *data = &cos_data->
1653                                                     data[entry];
1654                 /* Fill BW entry */
1655                 data->cos_bw = DCBX_INVALID_COS_BW;
1656                 data->strict = BNX2X_DCBX_STRICT_COS_HIGHEST;
1657                 data->pri_join_mask = strict_app_pris;
1658                 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1659                                  data->pri_join_mask);
1660                 return 1;
1661         }
1662
1663         return num_spread_of_entries;
1664 }
1665
1666 static void bnx2x_dcbx_cee_fill_cos_params(struct bnx2x *bp,
1667                                            struct pg_help_data *help_data,
1668                                            struct dcbx_ets_feature *ets,
1669                                            struct cos_help_data *cos_data,
1670                                            u32 pri_join_mask)
1671
1672 {
1673         u8 need_num_of_entries = 0;
1674         u8 i = 0;
1675         u8 entry = 0;
1676
1677         /*
1678          * if the number of requested PG-s in CEE is greater than 3
1679          * then the results are not determined since this is a violation
1680          * of the standard.
1681          */
1682         if (help_data->num_of_pg > DCBX_COS_MAX_NUM_E3B0) {
1683                 if (bnx2x_dcbx_join_pgs(bp, ets, help_data,
1684                                         DCBX_COS_MAX_NUM_E3B0)) {
1685                         BNX2X_ERR("Unable to reduce the number of PGs -"
1686                                   "we will disables ETS\n");
1687                         bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data,
1688                                                            pri_join_mask);
1689                         return;
1690                 }
1691         }
1692
1693         for (i = 0 ; i < help_data->num_of_pg; i++) {
1694                 struct pg_entry_help_data *pg =  &help_data->data[i];
1695                 if (pg->pg < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1696                         struct cos_entry_help_data *data = &cos_data->
1697                                                             data[entry];
1698                         /* Fill BW entry */
1699                         data->cos_bw = DCBX_PG_BW_GET(ets->pg_bw_tbl, pg->pg);
1700                         data->strict = BNX2X_DCBX_STRICT_INVALID;
1701                         data->pri_join_mask = pg->pg_priority;
1702                         data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1703                                                 data->pri_join_mask);
1704
1705                         entry++;
1706                 } else {
1707                         need_num_of_entries =  min_t(u8,
1708                                 (u8)pg->num_of_dif_pri,
1709                                 (u8)DCBX_COS_MAX_NUM_E3B0 -
1710                                                  help_data->num_of_pg + 1);
1711                         /*
1712                          * If there are still VOQ-s which have no associated PG,
1713                          * then associate these VOQ-s to PG15. These PG-s will
1714                          * be used for SP between priorities on PG15.
1715                          */
1716                         entry += bnx2x_dcbx_cee_fill_strict_pri(bp, cos_data,
1717                                 entry, need_num_of_entries, pg->pg_priority);
1718                 }
1719         }
1720
1721         /* the entry will represent the number of COSes used */
1722         cos_data->num_of_cos = entry;
1723 }
1724 static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp,
1725                                        struct pg_help_data *help_data,
1726                                        struct dcbx_ets_feature *ets,
1727                                        u32 *pg_pri_orginal_spread)
1728 {
1729         struct cos_help_data         cos_data;
1730         u8                    i                           = 0;
1731         u32                   pri_join_mask               = 0;
1732         u8                    num_of_dif_pri              = 0;
1733
1734         memset(&cos_data, 0, sizeof(cos_data));
1735
1736         /* Validate the pg value */
1737         for (i = 0; i < help_data->num_of_pg ; i++) {
1738                 if (DCBX_STRICT_PRIORITY != help_data->data[i].pg &&
1739                     DCBX_MAX_NUM_PG_BW_ENTRIES <= help_data->data[i].pg)
1740                         BNX2X_ERR("Invalid pg[%d] data %x\n", i,
1741                                   help_data->data[i].pg);
1742                 pri_join_mask   |=  help_data->data[i].pg_priority;
1743                 num_of_dif_pri  += help_data->data[i].num_of_dif_pri;
1744         }
1745
1746         /* defaults */
1747         cos_data.num_of_cos = 1;
1748         for (i = 0; i < ARRAY_SIZE(cos_data.data); i++) {
1749                 cos_data.data[i].pri_join_mask = 0;
1750                 cos_data.data[i].pausable = false;
1751                 cos_data.data[i].strict = BNX2X_DCBX_STRICT_INVALID;
1752                 cos_data.data[i].cos_bw = DCBX_INVALID_COS_BW;
1753         }
1754
1755         if (CHIP_IS_E3B0(bp))
1756                 bnx2x_dcbx_cee_fill_cos_params(bp, help_data, ets,
1757                                                &cos_data, pri_join_mask);
1758         else /* E2 + E3A0 */
1759                 bnx2x_dcbx_2cos_limit_cee_fill_cos_params(bp,
1760                                                           help_data, ets,
1761                                                           &cos_data,
1762                                                           pg_pri_orginal_spread,
1763                                                           pri_join_mask,
1764                                                           num_of_dif_pri);
1765
1766         for (i = 0; i < cos_data.num_of_cos ; i++) {
1767                 struct bnx2x_dcbx_cos_params *p =
1768                         &bp->dcbx_port_params.ets.cos_params[i];
1769
1770                 p->strict = cos_data.data[i].strict;
1771                 p->bw_tbl = cos_data.data[i].cos_bw;
1772                 p->pri_bitmask = cos_data.data[i].pri_join_mask;
1773                 p->pauseable = cos_data.data[i].pausable;
1774
1775                 /* sanity */
1776                 if (p->bw_tbl != DCBX_INVALID_COS_BW ||
1777                     p->strict != BNX2X_DCBX_STRICT_INVALID) {
1778                         if (p->pri_bitmask == 0)
1779                                 BNX2X_ERR("Invalid pri_bitmask for %d\n", i);
1780
1781                         if (CHIP_IS_E2(bp) || CHIP_IS_E3A0(bp)) {
1782
1783                                 if (p->pauseable &&
1784                                     DCBX_PFC_PRI_GET_NON_PAUSE(bp,
1785                                                 p->pri_bitmask) != 0)
1786                                         BNX2X_ERR("Inconsistent config for "
1787                                                   "pausable COS %d\n", i);
1788
1789                                 if (!p->pauseable &&
1790                                     DCBX_PFC_PRI_GET_PAUSE(bp,
1791                                                 p->pri_bitmask) != 0)
1792                                         BNX2X_ERR("Inconsistent config for "
1793                                                   "nonpausable COS %d\n", i);
1794                         }
1795                 }
1796
1797                 if (p->pauseable)
1798                         DP(NETIF_MSG_LINK, "COS %d PAUSABLE prijoinmask 0x%x\n",
1799                                   i, cos_data.data[i].pri_join_mask);
1800                 else
1801                         DP(NETIF_MSG_LINK, "COS %d NONPAUSABLE prijoinmask "
1802                                           "0x%x\n",
1803                                   i, cos_data.data[i].pri_join_mask);
1804         }
1805
1806         bp->dcbx_port_params.ets.num_of_cos = cos_data.num_of_cos ;
1807 }
1808
1809 static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp,
1810                                 u32 *set_configuration_ets_pg,
1811                                 u32 *pri_pg_tbl)
1812 {
1813         int i;
1814
1815         for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) {
1816                 set_configuration_ets_pg[i] = DCBX_PRI_PG_GET(pri_pg_tbl, i);
1817
1818                 DP(NETIF_MSG_LINK, "set_configuration_ets_pg[%d] = 0x%x\n",
1819                    i, set_configuration_ets_pg[i]);
1820         }
1821 }
1822
1823 static void bnx2x_dcbx_fw_struct(struct bnx2x *bp,
1824                                  struct bnx2x_func_tx_start_params *pfc_fw_cfg)
1825 {
1826         u16 pri_bit = 0;
1827         u8 cos = 0, pri = 0;
1828         struct priority_cos *tt2cos;
1829         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1830
1831         memset(pfc_fw_cfg, 0, sizeof(*pfc_fw_cfg));
1832
1833         /* to disable DCB - the structure must be zeroed */
1834         if (bp->dcbx_error & DCBX_REMOTE_MIB_ERROR)
1835                 return;
1836
1837         /*shortcut*/
1838         tt2cos = pfc_fw_cfg->traffic_type_to_priority_cos;
1839
1840         /* Fw version should be incremented each update */
1841         pfc_fw_cfg->dcb_version = ++bp->dcb_version;
1842         pfc_fw_cfg->dcb_enabled = 1;
1843
1844         /* Fill priority parameters */
1845         for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) {
1846                 tt2cos[pri].priority = ttp[pri];
1847                 pri_bit = 1 << tt2cos[pri].priority;
1848
1849                 /* Fill COS parameters based on COS calculated to
1850                  * make it more general for future use */
1851                 for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++)
1852                         if (bp->dcbx_port_params.ets.cos_params[cos].
1853                                                 pri_bitmask & pri_bit)
1854                                         tt2cos[pri].cos = cos;
1855         }
1856
1857         /* we never want the FW to add a 0 vlan tag */
1858         pfc_fw_cfg->dont_add_pri_0_en = 1;
1859
1860         bnx2x_dcbx_print_cos_params(bp, pfc_fw_cfg);
1861 }
1862
1863 void bnx2x_dcbx_pmf_update(struct bnx2x *bp)
1864 {
1865         /* if we need to syncronize DCBX result from prev PMF
1866          * read it from shmem and update bp accordingly
1867          */
1868         if (SHMEM2_HAS(bp, drv_flags) &&
1869            GET_FLAGS(SHMEM2_RD(bp, drv_flags), DRV_FLAGS_DCB_CONFIGURED)) {
1870                 /* Read neg results if dcbx is in the FW */
1871                 if (bnx2x_dcbx_read_shmem_neg_results(bp))
1872                         return;
1873
1874                 bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat,
1875                                           bp->dcbx_error);
1876                 bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat,
1877                                          bp->dcbx_error);
1878         }
1879 }
1880
1881 /* DCB netlink */
1882 #ifdef BCM_DCBNL
1883
1884 #define BNX2X_DCBX_CAPS         (DCB_CAP_DCBX_LLD_MANAGED | \
1885                                 DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_STATIC)
1886
1887 static inline bool bnx2x_dcbnl_set_valid(struct bnx2x *bp)
1888 {
1889         /* validate dcbnl call that may change HW state:
1890          * DCB is on and DCBX mode was SUCCESSFULLY set by the user.
1891          */
1892         return bp->dcb_state && bp->dcbx_mode_uset;
1893 }
1894
1895 static u8 bnx2x_dcbnl_get_state(struct net_device *netdev)
1896 {
1897         struct bnx2x *bp = netdev_priv(netdev);
1898         DP(NETIF_MSG_LINK, "state = %d\n", bp->dcb_state);
1899         return bp->dcb_state;
1900 }
1901
1902 static u8 bnx2x_dcbnl_set_state(struct net_device *netdev, u8 state)
1903 {
1904         struct bnx2x *bp = netdev_priv(netdev);
1905         DP(NETIF_MSG_LINK, "state = %s\n", state ? "on" : "off");
1906
1907         bnx2x_dcbx_set_state(bp, (state ? true : false), bp->dcbx_enabled);
1908         return 0;
1909 }
1910
1911 static void bnx2x_dcbnl_get_perm_hw_addr(struct net_device *netdev,
1912                                          u8 *perm_addr)
1913 {
1914         struct bnx2x *bp = netdev_priv(netdev);
1915         DP(NETIF_MSG_LINK, "GET-PERM-ADDR\n");
1916
1917         /* first the HW mac address */
1918         memcpy(perm_addr, netdev->dev_addr, netdev->addr_len);
1919
1920 #ifdef BCM_CNIC
1921         /* second SAN address */
1922         memcpy(perm_addr+netdev->addr_len, bp->fip_mac, netdev->addr_len);
1923 #endif
1924 }
1925
1926 static void bnx2x_dcbnl_set_pg_tccfg_tx(struct net_device *netdev, int prio,
1927                                         u8 prio_type, u8 pgid, u8 bw_pct,
1928                                         u8 up_map)
1929 {
1930         struct bnx2x *bp = netdev_priv(netdev);
1931
1932         DP(NETIF_MSG_LINK, "prio[%d] = %d\n", prio, pgid);
1933         if (!bnx2x_dcbnl_set_valid(bp) || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES)
1934                 return;
1935
1936         /**
1937          * bw_pct ingnored -    band-width percentage devision between user
1938          *                      priorities within the same group is not
1939          *                      standard and hence not supported
1940          *
1941          * prio_type igonred -  priority levels within the same group are not
1942          *                      standard and hence are not supported. According
1943          *                      to the standard pgid 15 is dedicated to strict
1944          *                      prioirty traffic (on the port level).
1945          *
1946          * up_map ignored
1947          */
1948
1949         bp->dcbx_config_params.admin_configuration_ets_pg[prio] = pgid;
1950         bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
1951 }
1952
1953 static void bnx2x_dcbnl_set_pg_bwgcfg_tx(struct net_device *netdev,
1954                                          int pgid, u8 bw_pct)
1955 {
1956         struct bnx2x *bp = netdev_priv(netdev);
1957         DP(NETIF_MSG_LINK, "pgid[%d] = %d\n", pgid, bw_pct);
1958
1959         if (!bnx2x_dcbnl_set_valid(bp) || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES)
1960                 return;
1961
1962         bp->dcbx_config_params.admin_configuration_bw_precentage[pgid] = bw_pct;
1963         bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
1964 }
1965
1966 static void bnx2x_dcbnl_set_pg_tccfg_rx(struct net_device *netdev, int prio,
1967                                         u8 prio_type, u8 pgid, u8 bw_pct,
1968                                         u8 up_map)
1969 {
1970         struct bnx2x *bp = netdev_priv(netdev);
1971         DP(NETIF_MSG_LINK, "Nothing to set; No RX support\n");
1972 }
1973
1974 static void bnx2x_dcbnl_set_pg_bwgcfg_rx(struct net_device *netdev,
1975                                          int pgid, u8 bw_pct)
1976 {
1977         struct bnx2x *bp = netdev_priv(netdev);
1978         DP(NETIF_MSG_LINK, "Nothing to set; No RX support\n");
1979 }
1980
1981 static void bnx2x_dcbnl_get_pg_tccfg_tx(struct net_device *netdev, int prio,
1982                                         u8 *prio_type, u8 *pgid, u8 *bw_pct,
1983                                         u8 *up_map)
1984 {
1985         struct bnx2x *bp = netdev_priv(netdev);
1986         DP(NETIF_MSG_LINK, "prio = %d\n", prio);
1987
1988         /**
1989          * bw_pct ingnored -    band-width percentage devision between user
1990          *                      priorities within the same group is not
1991          *                      standard and hence not supported
1992          *
1993          * prio_type igonred -  priority levels within the same group are not
1994          *                      standard and hence are not supported. According
1995          *                      to the standard pgid 15 is dedicated to strict
1996          *                      prioirty traffic (on the port level).
1997          *
1998          * up_map ignored
1999          */
2000         *up_map = *bw_pct = *prio_type = *pgid = 0;
2001
2002         if (!bp->dcb_state || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES)
2003                 return;
2004
2005         *pgid = DCBX_PRI_PG_GET(bp->dcbx_local_feat.ets.pri_pg_tbl, prio);
2006 }
2007
2008 static void bnx2x_dcbnl_get_pg_bwgcfg_tx(struct net_device *netdev,
2009                                          int pgid, u8 *bw_pct)
2010 {
2011         struct bnx2x *bp = netdev_priv(netdev);
2012         DP(NETIF_MSG_LINK, "pgid = %d\n", pgid);
2013
2014         *bw_pct = 0;
2015
2016         if (!bp->dcb_state || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES)
2017                 return;
2018
2019         *bw_pct = DCBX_PG_BW_GET(bp->dcbx_local_feat.ets.pg_bw_tbl, pgid);
2020 }
2021
2022 static void bnx2x_dcbnl_get_pg_tccfg_rx(struct net_device *netdev, int prio,
2023                                         u8 *prio_type, u8 *pgid, u8 *bw_pct,
2024                                         u8 *up_map)
2025 {
2026         struct bnx2x *bp = netdev_priv(netdev);
2027         DP(NETIF_MSG_LINK, "Nothing to get; No RX support\n");
2028
2029         *prio_type = *pgid = *bw_pct = *up_map = 0;
2030 }
2031
2032 static void bnx2x_dcbnl_get_pg_bwgcfg_rx(struct net_device *netdev,
2033                                          int pgid, u8 *bw_pct)
2034 {
2035         struct bnx2x *bp = netdev_priv(netdev);
2036         DP(NETIF_MSG_LINK, "Nothing to get; No RX support\n");
2037
2038         *bw_pct = 0;
2039 }
2040
2041 static void bnx2x_dcbnl_set_pfc_cfg(struct net_device *netdev, int prio,
2042                                     u8 setting)
2043 {
2044         struct bnx2x *bp = netdev_priv(netdev);
2045         DP(NETIF_MSG_LINK, "prio[%d] = %d\n", prio, setting);
2046
2047         if (!bnx2x_dcbnl_set_valid(bp) || prio >= MAX_PFC_PRIORITIES)
2048                 return;
2049
2050         bp->dcbx_config_params.admin_pfc_bitmap |= ((setting ? 1 : 0) << prio);
2051
2052         if (setting)
2053                 bp->dcbx_config_params.admin_pfc_tx_enable = 1;
2054 }
2055
2056 static void bnx2x_dcbnl_get_pfc_cfg(struct net_device *netdev, int prio,
2057                                     u8 *setting)
2058 {
2059         struct bnx2x *bp = netdev_priv(netdev);
2060         DP(NETIF_MSG_LINK, "prio = %d\n", prio);
2061
2062         *setting = 0;
2063
2064         if (!bp->dcb_state || prio >= MAX_PFC_PRIORITIES)
2065                 return;
2066
2067         *setting = (bp->dcbx_local_feat.pfc.pri_en_bitmap >> prio) & 0x1;
2068 }
2069
2070 static u8 bnx2x_dcbnl_set_all(struct net_device *netdev)
2071 {
2072         struct bnx2x *bp = netdev_priv(netdev);
2073         int rc = 0;
2074
2075         DP(NETIF_MSG_LINK, "SET-ALL\n");
2076
2077         if (!bnx2x_dcbnl_set_valid(bp))
2078                 return 1;
2079
2080         if (bp->recovery_state != BNX2X_RECOVERY_DONE) {
2081                 netdev_err(bp->dev, "Handling parity error recovery. "
2082                                 "Try again later\n");
2083                 return 1;
2084         }
2085         if (netif_running(bp->dev)) {
2086                 bnx2x_nic_unload(bp, UNLOAD_NORMAL);
2087                 rc = bnx2x_nic_load(bp, LOAD_NORMAL);
2088         }
2089         DP(NETIF_MSG_LINK, "set_dcbx_params done (%d)\n", rc);
2090         if (rc)
2091                 return 1;
2092
2093         return 0;
2094 }
2095
2096 static u8 bnx2x_dcbnl_get_cap(struct net_device *netdev, int capid, u8 *cap)
2097 {
2098         struct bnx2x *bp = netdev_priv(netdev);
2099         u8 rval = 0;
2100
2101         if (bp->dcb_state) {
2102                 switch (capid) {
2103                 case DCB_CAP_ATTR_PG:
2104                         *cap = true;
2105                         break;
2106                 case DCB_CAP_ATTR_PFC:
2107                         *cap = true;
2108                         break;
2109                 case DCB_CAP_ATTR_UP2TC:
2110                         *cap = false;
2111                         break;
2112                 case DCB_CAP_ATTR_PG_TCS:
2113                         *cap = 0x80;    /* 8 priorities for PGs */
2114                         break;
2115                 case DCB_CAP_ATTR_PFC_TCS:
2116                         *cap = 0x80;    /* 8 priorities for PFC */
2117                         break;
2118                 case DCB_CAP_ATTR_GSP:
2119                         *cap = true;
2120                         break;
2121                 case DCB_CAP_ATTR_BCN:
2122                         *cap = false;
2123                         break;
2124                 case DCB_CAP_ATTR_DCBX:
2125                         *cap = BNX2X_DCBX_CAPS;
2126                         break;
2127                 default:
2128                         rval = -EINVAL;
2129                         break;
2130                 }
2131         } else
2132                 rval = -EINVAL;
2133
2134         DP(NETIF_MSG_LINK, "capid %d:%x\n", capid, *cap);
2135         return rval;
2136 }
2137
2138 static u8 bnx2x_dcbnl_get_numtcs(struct net_device *netdev, int tcid, u8 *num)
2139 {
2140         struct bnx2x *bp = netdev_priv(netdev);
2141         u8 rval = 0;
2142
2143         DP(NETIF_MSG_LINK, "tcid %d\n", tcid);
2144
2145         if (bp->dcb_state) {
2146                 switch (tcid) {
2147                 case DCB_NUMTCS_ATTR_PG:
2148                         *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 :
2149                                                   DCBX_COS_MAX_NUM_E2;
2150                         break;
2151                 case DCB_NUMTCS_ATTR_PFC:
2152                         *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 :
2153                                                   DCBX_COS_MAX_NUM_E2;
2154                         break;
2155                 default:
2156                         rval = -EINVAL;
2157                         break;
2158                 }
2159         } else
2160                 rval = -EINVAL;
2161
2162         return rval;
2163 }
2164
2165 static u8 bnx2x_dcbnl_set_numtcs(struct net_device *netdev, int tcid, u8 num)
2166 {
2167         struct bnx2x *bp = netdev_priv(netdev);
2168         DP(NETIF_MSG_LINK, "num tcs = %d; Not supported\n", num);
2169         return -EINVAL;
2170 }
2171
2172 static u8  bnx2x_dcbnl_get_pfc_state(struct net_device *netdev)
2173 {
2174         struct bnx2x *bp = netdev_priv(netdev);
2175         DP(NETIF_MSG_LINK, "state = %d\n", bp->dcbx_local_feat.pfc.enabled);
2176
2177         if (!bp->dcb_state)
2178                 return 0;
2179
2180         return bp->dcbx_local_feat.pfc.enabled;
2181 }
2182
2183 static void bnx2x_dcbnl_set_pfc_state(struct net_device *netdev, u8 state)
2184 {
2185         struct bnx2x *bp = netdev_priv(netdev);
2186         DP(NETIF_MSG_LINK, "state = %s\n", state ? "on" : "off");
2187
2188         if (!bnx2x_dcbnl_set_valid(bp))
2189                 return;
2190
2191         bp->dcbx_config_params.admin_pfc_tx_enable =
2192         bp->dcbx_config_params.admin_pfc_enable = (state ? 1 : 0);
2193 }
2194
2195 static void bnx2x_admin_app_set_ent(
2196         struct bnx2x_admin_priority_app_table *app_ent,
2197         u8 idtype, u16 idval, u8 up)
2198 {
2199         app_ent->valid = 1;
2200
2201         switch (idtype) {
2202         case DCB_APP_IDTYPE_ETHTYPE:
2203                 app_ent->traffic_type = TRAFFIC_TYPE_ETH;
2204                 break;
2205         case DCB_APP_IDTYPE_PORTNUM:
2206                 app_ent->traffic_type = TRAFFIC_TYPE_PORT;
2207                 break;
2208         default:
2209                 break; /* never gets here */
2210         }
2211         app_ent->app_id = idval;
2212         app_ent->priority = up;
2213 }
2214
2215 static bool bnx2x_admin_app_is_equal(
2216         struct bnx2x_admin_priority_app_table *app_ent,
2217         u8 idtype, u16 idval)
2218 {
2219         if (!app_ent->valid)
2220                 return false;
2221
2222         switch (idtype) {
2223         case DCB_APP_IDTYPE_ETHTYPE:
2224                 if (app_ent->traffic_type != TRAFFIC_TYPE_ETH)
2225                         return false;
2226                 break;
2227         case DCB_APP_IDTYPE_PORTNUM:
2228                 if (app_ent->traffic_type != TRAFFIC_TYPE_PORT)
2229                         return false;
2230                 break;
2231         default:
2232                 return false;
2233         }
2234         if (app_ent->app_id != idval)
2235                 return false;
2236
2237         return true;
2238 }
2239
2240 static int bnx2x_set_admin_app_up(struct bnx2x *bp, u8 idtype, u16 idval, u8 up)
2241 {
2242         int i, ff;
2243
2244         /* iterate over the app entries looking for idtype and idval */
2245         for (i = 0, ff = -1; i < 4; i++) {
2246                 struct bnx2x_admin_priority_app_table *app_ent =
2247                         &bp->dcbx_config_params.admin_priority_app_table[i];
2248                 if (bnx2x_admin_app_is_equal(app_ent, idtype, idval))
2249                         break;
2250
2251                 if (ff < 0 && !app_ent->valid)
2252                         ff = i;
2253         }
2254         if (i < 4)
2255                 /* if found overwrite up */
2256                 bp->dcbx_config_params.
2257                         admin_priority_app_table[i].priority = up;
2258         else if (ff >= 0)
2259                 /* not found use first-free */
2260                 bnx2x_admin_app_set_ent(
2261                         &bp->dcbx_config_params.admin_priority_app_table[ff],
2262                         idtype, idval, up);
2263         else
2264                 /* app table is full */
2265                 return -EBUSY;
2266
2267         /* up configured, if not 0 make sure feature is enabled */
2268         if (up)
2269                 bp->dcbx_config_params.admin_application_priority_tx_enable = 1;
2270
2271         return 0;
2272 }
2273
2274 static u8 bnx2x_dcbnl_set_app_up(struct net_device *netdev, u8 idtype,
2275                                  u16 idval, u8 up)
2276 {
2277         struct bnx2x *bp = netdev_priv(netdev);
2278
2279         DP(NETIF_MSG_LINK, "app_type %d, app_id %x, prio bitmap %d\n",
2280            idtype, idval, up);
2281
2282         if (!bnx2x_dcbnl_set_valid(bp))
2283                 return -EINVAL;
2284
2285         /* verify idtype */
2286         switch (idtype) {
2287         case DCB_APP_IDTYPE_ETHTYPE:
2288         case DCB_APP_IDTYPE_PORTNUM:
2289                 break;
2290         default:
2291                 return -EINVAL;
2292         }
2293         return bnx2x_set_admin_app_up(bp, idtype, idval, up);
2294 }
2295
2296 static u8 bnx2x_dcbnl_get_dcbx(struct net_device *netdev)
2297 {
2298         struct bnx2x *bp = netdev_priv(netdev);
2299         u8 state;
2300
2301         state = DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_CEE;
2302
2303         if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF)
2304                 state |= DCB_CAP_DCBX_STATIC;
2305
2306         return state;
2307 }
2308
2309 static u8 bnx2x_dcbnl_set_dcbx(struct net_device *netdev, u8 state)
2310 {
2311         struct bnx2x *bp = netdev_priv(netdev);
2312         DP(NETIF_MSG_LINK, "state = %02x\n", state);
2313
2314         /* set dcbx mode */
2315
2316         if ((state & BNX2X_DCBX_CAPS) != state) {
2317                 BNX2X_ERR("Requested DCBX mode %x is beyond advertised "
2318                           "capabilities\n", state);
2319                 return 1;
2320         }
2321
2322         if (bp->dcb_state != BNX2X_DCB_STATE_ON) {
2323                 BNX2X_ERR("DCB turned off, DCBX configuration is invalid\n");
2324                 return 1;
2325         }
2326
2327         if (state & DCB_CAP_DCBX_STATIC)
2328                 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_OFF;
2329         else
2330                 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_ON;
2331
2332         bp->dcbx_mode_uset = true;
2333         return 0;
2334 }
2335
2336 static u8 bnx2x_dcbnl_get_featcfg(struct net_device *netdev, int featid,
2337                                   u8 *flags)
2338 {
2339         struct bnx2x *bp = netdev_priv(netdev);
2340         u8 rval = 0;
2341
2342         DP(NETIF_MSG_LINK, "featid %d\n", featid);
2343
2344         if (bp->dcb_state) {
2345                 *flags = 0;
2346                 switch (featid) {
2347                 case DCB_FEATCFG_ATTR_PG:
2348                         if (bp->dcbx_local_feat.ets.enabled)
2349                                 *flags |= DCB_FEATCFG_ENABLE;
2350                         if (bp->dcbx_error & DCBX_LOCAL_ETS_ERROR)
2351                                 *flags |= DCB_FEATCFG_ERROR;
2352                         break;
2353                 case DCB_FEATCFG_ATTR_PFC:
2354                         if (bp->dcbx_local_feat.pfc.enabled)
2355                                 *flags |= DCB_FEATCFG_ENABLE;
2356                         if (bp->dcbx_error & (DCBX_LOCAL_PFC_ERROR |
2357                             DCBX_LOCAL_PFC_MISMATCH))
2358                                 *flags |= DCB_FEATCFG_ERROR;
2359                         break;
2360                 case DCB_FEATCFG_ATTR_APP:
2361                         if (bp->dcbx_local_feat.app.enabled)
2362                                 *flags |= DCB_FEATCFG_ENABLE;
2363                         if (bp->dcbx_error & (DCBX_LOCAL_APP_ERROR |
2364                             DCBX_LOCAL_APP_MISMATCH))
2365                                 *flags |= DCB_FEATCFG_ERROR;
2366                         break;
2367                 default:
2368                         rval = -EINVAL;
2369                         break;
2370                 }
2371         } else
2372                 rval = -EINVAL;
2373
2374         return rval;
2375 }
2376
2377 static u8 bnx2x_dcbnl_set_featcfg(struct net_device *netdev, int featid,
2378                                   u8 flags)
2379 {
2380         struct bnx2x *bp = netdev_priv(netdev);
2381         u8 rval = 0;
2382
2383         DP(NETIF_MSG_LINK, "featid = %d flags = %02x\n", featid, flags);
2384
2385         /* ignore the 'advertise' flag */
2386         if (bnx2x_dcbnl_set_valid(bp)) {
2387                 switch (featid) {
2388                 case DCB_FEATCFG_ATTR_PG:
2389                         bp->dcbx_config_params.admin_ets_enable =
2390                                 flags & DCB_FEATCFG_ENABLE ? 1 : 0;
2391                         bp->dcbx_config_params.admin_ets_willing =
2392                                 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2393                         break;
2394                 case DCB_FEATCFG_ATTR_PFC:
2395                         bp->dcbx_config_params.admin_pfc_enable =
2396                                 flags & DCB_FEATCFG_ENABLE ? 1 : 0;
2397                         bp->dcbx_config_params.admin_pfc_willing =
2398                                 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2399                         break;
2400                 case DCB_FEATCFG_ATTR_APP:
2401                         /* ignore enable, always enabled */
2402                         bp->dcbx_config_params.admin_app_priority_willing =
2403                                 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2404                         break;
2405                 default:
2406                         rval = -EINVAL;
2407                         break;
2408                 }
2409         } else
2410                 rval = -EINVAL;
2411
2412         return rval;
2413 }
2414
2415 static int bnx2x_peer_appinfo(struct net_device *netdev,
2416                               struct dcb_peer_app_info *info, u16* app_count)
2417 {
2418         int i;
2419         struct bnx2x *bp = netdev_priv(netdev);
2420
2421         DP(NETIF_MSG_LINK, "APP-INFO\n");
2422
2423         info->willing = (bp->dcbx_remote_flags & DCBX_APP_REM_WILLING) ?: 0;
2424         info->error = (bp->dcbx_remote_flags & DCBX_APP_RX_ERROR) ?: 0;
2425         *app_count = 0;
2426
2427         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++)
2428                 if (bp->dcbx_remote_feat.app.app_pri_tbl[i].appBitfield &
2429                     DCBX_APP_ENTRY_VALID)
2430                         (*app_count)++;
2431         return 0;
2432 }
2433
2434 static int bnx2x_peer_apptable(struct net_device *netdev,
2435                                struct dcb_app *table)
2436 {
2437         int i, j;
2438         struct bnx2x *bp = netdev_priv(netdev);
2439
2440         DP(NETIF_MSG_LINK, "APP-TABLE\n");
2441
2442         for (i = 0, j = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
2443                 struct dcbx_app_priority_entry *ent =
2444                         &bp->dcbx_remote_feat.app.app_pri_tbl[i];
2445
2446                 if (ent->appBitfield & DCBX_APP_ENTRY_VALID) {
2447                         table[j].selector = bnx2x_dcbx_dcbnl_app_idtype(ent);
2448                         table[j].priority = bnx2x_dcbx_dcbnl_app_up(ent);
2449                         table[j++].protocol = ent->app_id;
2450                 }
2451         }
2452         return 0;
2453 }
2454
2455 static int bnx2x_cee_peer_getpg(struct net_device *netdev, struct cee_pg *pg)
2456 {
2457         int i;
2458         struct bnx2x *bp = netdev_priv(netdev);
2459
2460         pg->willing = (bp->dcbx_remote_flags & DCBX_ETS_REM_WILLING) ?: 0;
2461
2462         for (i = 0; i < CEE_DCBX_MAX_PGS; i++) {
2463                 pg->pg_bw[i] =
2464                         DCBX_PG_BW_GET(bp->dcbx_remote_feat.ets.pg_bw_tbl, i);
2465                 pg->prio_pg[i] =
2466                         DCBX_PRI_PG_GET(bp->dcbx_remote_feat.ets.pri_pg_tbl, i);
2467         }
2468         return 0;
2469 }
2470
2471 static int bnx2x_cee_peer_getpfc(struct net_device *netdev,
2472                                  struct cee_pfc *pfc)
2473 {
2474         struct bnx2x *bp = netdev_priv(netdev);
2475         pfc->tcs_supported = bp->dcbx_remote_feat.pfc.pfc_caps;
2476         pfc->pfc_en = bp->dcbx_remote_feat.pfc.pri_en_bitmap;
2477         return 0;
2478 }
2479
2480 const struct dcbnl_rtnl_ops bnx2x_dcbnl_ops = {
2481         .getstate               = bnx2x_dcbnl_get_state,
2482         .setstate               = bnx2x_dcbnl_set_state,
2483         .getpermhwaddr          = bnx2x_dcbnl_get_perm_hw_addr,
2484         .setpgtccfgtx           = bnx2x_dcbnl_set_pg_tccfg_tx,
2485         .setpgbwgcfgtx          = bnx2x_dcbnl_set_pg_bwgcfg_tx,
2486         .setpgtccfgrx           = bnx2x_dcbnl_set_pg_tccfg_rx,
2487         .setpgbwgcfgrx          = bnx2x_dcbnl_set_pg_bwgcfg_rx,
2488         .getpgtccfgtx           = bnx2x_dcbnl_get_pg_tccfg_tx,
2489         .getpgbwgcfgtx          = bnx2x_dcbnl_get_pg_bwgcfg_tx,
2490         .getpgtccfgrx           = bnx2x_dcbnl_get_pg_tccfg_rx,
2491         .getpgbwgcfgrx          = bnx2x_dcbnl_get_pg_bwgcfg_rx,
2492         .setpfccfg              = bnx2x_dcbnl_set_pfc_cfg,
2493         .getpfccfg              = bnx2x_dcbnl_get_pfc_cfg,
2494         .setall                 = bnx2x_dcbnl_set_all,
2495         .getcap                 = bnx2x_dcbnl_get_cap,
2496         .getnumtcs              = bnx2x_dcbnl_get_numtcs,
2497         .setnumtcs              = bnx2x_dcbnl_set_numtcs,
2498         .getpfcstate            = bnx2x_dcbnl_get_pfc_state,
2499         .setpfcstate            = bnx2x_dcbnl_set_pfc_state,
2500         .setapp                 = bnx2x_dcbnl_set_app_up,
2501         .getdcbx                = bnx2x_dcbnl_get_dcbx,
2502         .setdcbx                = bnx2x_dcbnl_set_dcbx,
2503         .getfeatcfg             = bnx2x_dcbnl_get_featcfg,
2504         .setfeatcfg             = bnx2x_dcbnl_set_featcfg,
2505         .peer_getappinfo        = bnx2x_peer_appinfo,
2506         .peer_getapptable       = bnx2x_peer_apptable,
2507         .cee_peer_getpg         = bnx2x_cee_peer_getpg,
2508         .cee_peer_getpfc        = bnx2x_cee_peer_getpfc,
2509 };
2510
2511 #endif /* BCM_DCBNL */