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