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

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