drivers/net/bnx2x/bnx2x_dcb.c

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