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

   1 /* bnx2x_dcb.c: Broadcom Everest network driver.
   2  *
   3  * Copyright 2009-2012 Broadcom Corporation
   4  *
   5  * Unless you and Broadcom execute a separate written software license
   6  * agreement governing use of this software, this software is licensed to you
   7  * under the terms of the GNU General Public License version 2, available
   8  * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
   9  *
  10  * Notwithstanding the above, under no circumstances may you combine this
  11  * software in any way with any other Broadcom software provided under a
  12  * license other than the GPL, without Broadcom's express prior written
  13  * consent.
  14  *
  15  * Maintained by: Eilon Greenstein <eilong@broadcom.com>
  16  * Written by: Dmitry Kravkov
  17  *
  18  */
  19
  20 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  21
  22 #include <linux/netdevice.h>
  23 #include <linux/types.h>
  24 #include <linux/errno.h>
  25 #include <linux/rtnetlink.h>
  26 #include <net/dcbnl.h>
  27
  28 #include "bnx2x.h"
  29 #include "bnx2x_cmn.h"
  30 #include "bnx2x_dcb.h"
  31
  32 /* forward declarations of dcbx related functions */
  33 static int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp);
  34 static void bnx2x_pfc_set_pfc(struct bnx2x *bp);
  35 static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp);
  36 static int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp);
  37 static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp,
  38                                           u32 *set_configuration_ets_pg,
  39                                           u32 *pri_pg_tbl);
  40 static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp,
  41                                             u32 *pg_pri_orginal_spread,
  42                                             struct pg_help_data *help_data);
  43 static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp,
  44                                        struct pg_help_data *help_data,
  45                                        struct dcbx_ets_feature *ets,
  46                                        u32 *pg_pri_orginal_spread);
  47 static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp,
  48                                 struct cos_help_data *cos_data,
  49                                 u32 *pg_pri_orginal_spread,
  50                                 struct dcbx_ets_feature *ets);
  51 static void bnx2x_dcbx_fw_struct(struct bnx2x *bp,
  52                                  struct bnx2x_func_tx_start_params*);
  53
  54 /* helpers: read/write len bytes from addr into buff by REG_RD/REG_WR */
  55 static void bnx2x_read_data(struct bnx2x *bp, u32 *buff,
  56                                    u32 addr, u32 len)
  57 {
  58         int i;
  59         for (i = 0; i < len; i += 4, buff++)
  60                 *buff = REG_RD(bp, addr + i);
  61 }
  62
  63 static void bnx2x_write_data(struct bnx2x *bp, u32 *buff,
  64                                     u32 addr, u32 len)
  65 {
  66         int i;
  67         for (i = 0; i < len; i += 4, buff++)
  68                 REG_WR(bp, addr + i, *buff);
  69 }
  70
  71 static void bnx2x_pfc_set(struct bnx2x *bp)
  72 {
  73         struct bnx2x_nig_brb_pfc_port_params pfc_params = {0};
  74         u32 pri_bit, val = 0;
  75         int i;
  76
  77         pfc_params.num_of_rx_cos_priority_mask =
  78                                         bp->dcbx_port_params.ets.num_of_cos;
  79
  80         /* Tx COS configuration */
  81         for (i = 0; i < bp->dcbx_port_params.ets.num_of_cos; i++)
  82                 /*
  83                  * We configure only the pauseable bits (non pauseable aren't
  84                  * configured at all) it's done to avoid false pauses from
  85                  * network
  86                  */
  87                 pfc_params.rx_cos_priority_mask[i] =
  88                         bp->dcbx_port_params.ets.cos_params[i].pri_bitmask
  89                                 & DCBX_PFC_PRI_PAUSE_MASK(bp);
  90
  91         /*
  92          * Rx COS configuration
  93          * Changing PFC RX configuration .
  94          * In RX COS0 will always be configured to lossy and COS1 to lossless
  95          */
  96         for (i = 0 ; i < MAX_PFC_PRIORITIES ; i++) {
  97                 pri_bit = 1 << i;
  98
  99                 if (pri_bit & DCBX_PFC_PRI_PAUSE_MASK(bp))
 100                         val |= 1 << (i * 4);
 101         }
 102
 103         pfc_params.pkt_priority_to_cos = val;
 104
 105         /* RX COS0 */
 106         pfc_params.llfc_low_priority_classes = 0;
 107         /* RX COS1 */
 108         pfc_params.llfc_high_priority_classes = DCBX_PFC_PRI_PAUSE_MASK(bp);
 109
 110         /* BRB configuration */
 111         pfc_params.cos0_pauseable = false;
 112         pfc_params.cos1_pauseable = true;
 113
 114         bnx2x_acquire_phy_lock(bp);
 115         bp->link_params.feature_config_flags |= FEATURE_CONFIG_PFC_ENABLED;
 116         bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &pfc_params);
 117         bnx2x_release_phy_lock(bp);
 118 }
 119
 120 static void bnx2x_pfc_clear(struct bnx2x *bp)
 121 {
 122         struct bnx2x_nig_brb_pfc_port_params nig_params = {0};
 123         nig_params.pause_enable = 1;
 124         bnx2x_acquire_phy_lock(bp);
 125         bp->link_params.feature_config_flags &= ~FEATURE_CONFIG_PFC_ENABLED;
 126         bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &nig_params);
 127         bnx2x_release_phy_lock(bp);
 128 }
 129
 130 static void  bnx2x_dump_dcbx_drv_param(struct bnx2x *bp,
 131                                        struct dcbx_features *features,
 132                                        u32 error)
 133 {
 134         u8 i = 0;
 135         DP(NETIF_MSG_LINK, "local_mib.error %x\n", error);
 136
 137         /* PG */
 138         DP(NETIF_MSG_LINK,
 139            "local_mib.features.ets.enabled %x\n", features->ets.enabled);
 140         for (i = 0; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++)
 141                 DP(NETIF_MSG_LINK,
 142                    "local_mib.features.ets.pg_bw_tbl[%d] %d\n", i,
 143                    DCBX_PG_BW_GET(features->ets.pg_bw_tbl, i));
 144         for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++)
 145                 DP(NETIF_MSG_LINK,
 146                    "local_mib.features.ets.pri_pg_tbl[%d] %d\n", i,
 147                    DCBX_PRI_PG_GET(features->ets.pri_pg_tbl, i));
 148
 149         /* pfc */
 150         DP(BNX2X_MSG_DCB, "dcbx_features.pfc.pri_en_bitmap %x\n",
 151                                         features->pfc.pri_en_bitmap);
 152         DP(BNX2X_MSG_DCB, "dcbx_features.pfc.pfc_caps %x\n",
 153                                         features->pfc.pfc_caps);
 154         DP(BNX2X_MSG_DCB, "dcbx_features.pfc.enabled %x\n",
 155                                         features->pfc.enabled);
 156
 157         DP(BNX2X_MSG_DCB, "dcbx_features.app.default_pri %x\n",
 158                                         features->app.default_pri);
 159         DP(BNX2X_MSG_DCB, "dcbx_features.app.tc_supported %x\n",
 160                                         features->app.tc_supported);
 161         DP(BNX2X_MSG_DCB, "dcbx_features.app.enabled %x\n",
 162                                         features->app.enabled);
 163         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
 164                 DP(BNX2X_MSG_DCB,
 165                    "dcbx_features.app.app_pri_tbl[%x].app_id %x\n",
 166                    i, features->app.app_pri_tbl[i].app_id);
 167                 DP(BNX2X_MSG_DCB,
 168                    "dcbx_features.app.app_pri_tbl[%x].pri_bitmap %x\n",
 169                    i, features->app.app_pri_tbl[i].pri_bitmap);
 170                 DP(BNX2X_MSG_DCB,
 171                    "dcbx_features.app.app_pri_tbl[%x].appBitfield %x\n",
 172                    i, features->app.app_pri_tbl[i].appBitfield);
 173         }
 174 }
 175
 176 static void bnx2x_dcbx_get_ap_priority(struct bnx2x *bp,
 177                                        u8 pri_bitmap,
 178                                        u8 llfc_traf_type)
 179 {
 180         u32 pri = MAX_PFC_PRIORITIES;
 181         u32 index = MAX_PFC_PRIORITIES - 1;
 182         u32 pri_mask;
 183         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
 184
 185         /* Choose the highest priority */
 186         while ((MAX_PFC_PRIORITIES == pri) && (0 != index)) {
 187                 pri_mask = 1 << index;
 188                 if (GET_FLAGS(pri_bitmap, pri_mask))
 189                         pri = index ;
 190                 index--;
 191         }
 192
 193         if (pri < MAX_PFC_PRIORITIES)
 194                 ttp[llfc_traf_type] = max_t(u32, ttp[llfc_traf_type], pri);
 195 }
 196
 197 static void bnx2x_dcbx_get_ap_feature(struct bnx2x *bp,
 198                                    struct dcbx_app_priority_feature *app,
 199                                    u32 error) {
 200         u8 index;
 201         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
 202
 203         if (GET_FLAGS(error, DCBX_LOCAL_APP_ERROR))
 204                 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_APP_ERROR\n");
 205
 206         if (GET_FLAGS(error, DCBX_LOCAL_APP_MISMATCH))
 207                 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_APP_MISMATCH\n");
 208
 209         if (GET_FLAGS(error, DCBX_REMOTE_APP_TLV_NOT_FOUND))
 210                 DP(BNX2X_MSG_DCB, "DCBX_REMOTE_APP_TLV_NOT_FOUND\n");
 211         if (app->enabled &&
 212             !GET_FLAGS(error, DCBX_LOCAL_APP_ERROR | DCBX_LOCAL_APP_MISMATCH |
 213                               DCBX_REMOTE_APP_TLV_NOT_FOUND)) {
 214
 215                 bp->dcbx_port_params.app.enabled = true;
 216
 217                 for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++)
 218                         ttp[index] = 0;
 219
 220                 if (app->default_pri < MAX_PFC_PRIORITIES)
 221                         ttp[LLFC_TRAFFIC_TYPE_NW] = app->default_pri;
 222
 223                 for (index = 0 ; index < DCBX_MAX_APP_PROTOCOL; index++) {
 224                         struct dcbx_app_priority_entry *entry =
 225                                                         app->app_pri_tbl;
 226
 227                         if (GET_FLAGS(entry[index].appBitfield,
 228                                      DCBX_APP_SF_ETH_TYPE) &&
 229                            ETH_TYPE_FCOE == entry[index].app_id)
 230                                 bnx2x_dcbx_get_ap_priority(bp,
 231                                                 entry[index].pri_bitmap,
 232                                                 LLFC_TRAFFIC_TYPE_FCOE);
 233
 234                         if (GET_FLAGS(entry[index].appBitfield,
 235                                      DCBX_APP_SF_PORT) &&
 236                            TCP_PORT_ISCSI == entry[index].app_id)
 237                                 bnx2x_dcbx_get_ap_priority(bp,
 238                                                 entry[index].pri_bitmap,
 239                                                 LLFC_TRAFFIC_TYPE_ISCSI);
 240                 }
 241         } else {
 242                 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_APP_DISABLED\n");
 243                 bp->dcbx_port_params.app.enabled = false;
 244                 for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++)
 245                         ttp[index] = INVALID_TRAFFIC_TYPE_PRIORITY;
 246         }
 247 }
 248
 249 static void bnx2x_dcbx_get_ets_feature(struct bnx2x *bp,
 250                                        struct dcbx_ets_feature *ets,
 251                                        u32 error) {
 252         int i = 0;
 253         u32 pg_pri_orginal_spread[DCBX_MAX_NUM_PG_BW_ENTRIES] = {0};
 254         struct pg_help_data pg_help_data;
 255         struct bnx2x_dcbx_cos_params *cos_params =
 256                         bp->dcbx_port_params.ets.cos_params;
 257
 258         memset(&pg_help_data, 0, sizeof(struct pg_help_data));
 259
 260
 261         if (GET_FLAGS(error, DCBX_LOCAL_ETS_ERROR))
 262                 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_ERROR\n");
 263
 264         if (GET_FLAGS(error, DCBX_REMOTE_ETS_TLV_NOT_FOUND))
 265                 DP(BNX2X_MSG_DCB, "DCBX_REMOTE_ETS_TLV_NOT_FOUND\n");
 266
 267         /* Clean up old settings of ets on COS */
 268         for (i = 0; i < ARRAY_SIZE(bp->dcbx_port_params.ets.cos_params) ; i++) {
 269                 cos_params[i].pauseable = false;
 270                 cos_params[i].strict = BNX2X_DCBX_STRICT_INVALID;
 271                 cos_params[i].bw_tbl = DCBX_INVALID_COS_BW;
 272                 cos_params[i].pri_bitmask = 0;
 273         }
 274
 275         if (bp->dcbx_port_params.app.enabled && ets->enabled &&
 276            !GET_FLAGS(error,
 277                       DCBX_LOCAL_ETS_ERROR | DCBX_REMOTE_ETS_TLV_NOT_FOUND)) {
 278                 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_ENABLE\n");
 279                 bp->dcbx_port_params.ets.enabled = true;
 280
 281                 bnx2x_dcbx_get_ets_pri_pg_tbl(bp,
 282                                               pg_pri_orginal_spread,
 283                                               ets->pri_pg_tbl);
 284
 285                 bnx2x_dcbx_get_num_pg_traf_type(bp,
 286                                                 pg_pri_orginal_spread,
 287                                                 &pg_help_data);
 288
 289                 bnx2x_dcbx_fill_cos_params(bp, &pg_help_data,
 290                                            ets, pg_pri_orginal_spread);
 291
 292         } else {
 293                 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_DISABLED\n");
 294                 bp->dcbx_port_params.ets.enabled = false;
 295                 ets->pri_pg_tbl[0] = 0;
 296
 297                 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES ; i++)
 298                         DCBX_PG_BW_SET(ets->pg_bw_tbl, i, 1);
 299         }
 300 }
 301
 302 static void  bnx2x_dcbx_get_pfc_feature(struct bnx2x *bp,
 303                                         struct dcbx_pfc_feature *pfc, u32 error)
 304 {
 305
 306         if (GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR))
 307                 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_PFC_ERROR\n");
 308
 309         if (GET_FLAGS(error, DCBX_REMOTE_PFC_TLV_NOT_FOUND))
 310                 DP(BNX2X_MSG_DCB, "DCBX_REMOTE_PFC_TLV_NOT_FOUND\n");
 311         if (bp->dcbx_port_params.app.enabled && pfc->enabled &&
 312            !GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR | DCBX_LOCAL_PFC_MISMATCH |
 313                              DCBX_REMOTE_PFC_TLV_NOT_FOUND)) {
 314                 bp->dcbx_port_params.pfc.enabled = true;
 315                 bp->dcbx_port_params.pfc.priority_non_pauseable_mask =
 316                         ~(pfc->pri_en_bitmap);
 317         } else {
 318                 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_PFC_DISABLED\n");
 319                 bp->dcbx_port_params.pfc.enabled = false;
 320                 bp->dcbx_port_params.pfc.priority_non_pauseable_mask = 0;
 321         }
 322 }
 323
 324 /* maps unmapped priorities to to the same COS as L2 */
 325 static void bnx2x_dcbx_map_nw(struct bnx2x *bp)
 326 {
 327         int i;
 328         u32 unmapped = (1 << MAX_PFC_PRIORITIES) - 1; /* all ones */
 329         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
 330         u32 nw_prio = 1 << ttp[LLFC_TRAFFIC_TYPE_NW];
 331         struct bnx2x_dcbx_cos_params *cos_params =
 332                         bp->dcbx_port_params.ets.cos_params;
 333
 334         /* get unmapped priorities by clearing mapped bits */
 335         for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++)
 336                 unmapped &= ~(1 << ttp[i]);
 337
 338         /* find cos for nw prio and extend it with unmapped */
 339         for (i = 0; i < ARRAY_SIZE(bp->dcbx_port_params.ets.cos_params); i++) {
 340                 if (cos_params[i].pri_bitmask & nw_prio) {
 341                         /* extend the bitmask with unmapped */
 342                         DP(BNX2X_MSG_DCB,
 343                            "cos %d extended with 0x%08x\n", i, unmapped);
 344                         cos_params[i].pri_bitmask |= unmapped;
 345                         break;
 346                 }
 347         }
 348 }
 349
 350 static void bnx2x_get_dcbx_drv_param(struct bnx2x *bp,
 351                                      struct dcbx_features *features,
 352                                      u32 error)
 353 {
 354         bnx2x_dcbx_get_ap_feature(bp, &features->app, error);
 355
 356         bnx2x_dcbx_get_pfc_feature(bp, &features->pfc, error);
 357
 358         bnx2x_dcbx_get_ets_feature(bp, &features->ets, error);
 359
 360         bnx2x_dcbx_map_nw(bp);
 361 }
 362
 363 #define DCBX_LOCAL_MIB_MAX_TRY_READ             (100)
 364 static int bnx2x_dcbx_read_mib(struct bnx2x *bp,
 365                                u32 *base_mib_addr,
 366                                u32 offset,
 367                                int read_mib_type)
 368 {
 369         int max_try_read = 0;
 370         u32 mib_size, prefix_seq_num, suffix_seq_num;
 371         struct lldp_remote_mib *remote_mib ;
 372         struct lldp_local_mib  *local_mib;
 373
 374
 375         switch (read_mib_type) {
 376         case DCBX_READ_LOCAL_MIB:
 377                 mib_size = sizeof(struct lldp_local_mib);
 378                 break;
 379         case DCBX_READ_REMOTE_MIB:
 380                 mib_size = sizeof(struct lldp_remote_mib);
 381                 break;
 382         default:
 383                 return 1; /*error*/
 384         }
 385
 386         offset += BP_PORT(bp) * mib_size;
 387
 388         do {
 389                 bnx2x_read_data(bp, base_mib_addr, offset, mib_size);
 390
 391                 max_try_read++;
 392
 393                 switch (read_mib_type) {
 394                 case DCBX_READ_LOCAL_MIB:
 395                         local_mib = (struct lldp_local_mib *) base_mib_addr;
 396                         prefix_seq_num = local_mib->prefix_seq_num;
 397                         suffix_seq_num = local_mib->suffix_seq_num;
 398                         break;
 399                 case DCBX_READ_REMOTE_MIB:
 400                         remote_mib = (struct lldp_remote_mib *) base_mib_addr;
 401                         prefix_seq_num = remote_mib->prefix_seq_num;
 402                         suffix_seq_num = remote_mib->suffix_seq_num;
 403                         break;
 404                 default:
 405                         return 1; /*error*/
 406                 }
 407         } while ((prefix_seq_num != suffix_seq_num) &&
 408                (max_try_read < DCBX_LOCAL_MIB_MAX_TRY_READ));
 409
 410         if (max_try_read >= DCBX_LOCAL_MIB_MAX_TRY_READ) {
 411                 BNX2X_ERR("MIB could not be read\n");
 412                 return 1;
 413         }
 414
 415         return 0;
 416 }
 417
 418 static void bnx2x_pfc_set_pfc(struct bnx2x *bp)
 419 {
 420         if (bp->dcbx_port_params.pfc.enabled &&
 421             !(bp->dcbx_error & DCBX_REMOTE_MIB_ERROR))
 422                 /*
 423                  * 1. Fills up common PFC structures if required
 424                  * 2. Configure NIG, MAC and BRB via the elink
 425                  */
 426                 bnx2x_pfc_set(bp);
 427         else
 428                 bnx2x_pfc_clear(bp);
 429 }
 430
 431 static int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp)
 432 {
 433         struct bnx2x_func_state_params func_params = {NULL};
 434
 435         func_params.f_obj = &bp->func_obj;
 436         func_params.cmd = BNX2X_F_CMD_TX_STOP;
 437
 438         DP(BNX2X_MSG_DCB, "STOP TRAFFIC\n");
 439         return bnx2x_func_state_change(bp, &func_params);
 440 }
 441
 442 static int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp)
 443 {
 444         struct bnx2x_func_state_params func_params = {NULL};
 445         struct bnx2x_func_tx_start_params *tx_params =
 446                 &func_params.params.tx_start;
 447
 448         func_params.f_obj = &bp->func_obj;
 449         func_params.cmd = BNX2X_F_CMD_TX_START;
 450
 451         bnx2x_dcbx_fw_struct(bp, tx_params);
 452
 453         DP(BNX2X_MSG_DCB, "START TRAFFIC\n");
 454         return bnx2x_func_state_change(bp, &func_params);
 455 }
 456
 457 static void bnx2x_dcbx_2cos_limit_update_ets_config(struct bnx2x *bp)
 458 {
 459         struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets);
 460         int rc = 0;
 461
 462         if (ets->num_of_cos == 0 || ets->num_of_cos > DCBX_COS_MAX_NUM_E2) {
 463                 BNX2X_ERR("Illegal number of COSes %d\n", ets->num_of_cos);
 464                 return;
 465         }
 466
 467         /* valid COS entries */
 468         if (ets->num_of_cos == 1)   /* no ETS */
 469                 return;
 470
 471         /* sanity */
 472         if (((BNX2X_DCBX_STRICT_INVALID == ets->cos_params[0].strict) &&
 473              (DCBX_INVALID_COS_BW == ets->cos_params[0].bw_tbl)) ||
 474             ((BNX2X_DCBX_STRICT_INVALID == ets->cos_params[1].strict) &&
 475              (DCBX_INVALID_COS_BW == ets->cos_params[1].bw_tbl))) {
 476                 BNX2X_ERR("all COS should have at least bw_limit or strict"
 477                             "ets->cos_params[0].strict= %x"
 478                             "ets->cos_params[0].bw_tbl= %x"
 479                             "ets->cos_params[1].strict= %x"
 480                             "ets->cos_params[1].bw_tbl= %x",
 481                           ets->cos_params[0].strict,
 482                           ets->cos_params[0].bw_tbl,
 483                           ets->cos_params[1].strict,
 484                           ets->cos_params[1].bw_tbl);
 485                 return;
 486         }
 487         /* If we join a group and there is bw_tbl and strict then bw rules */
 488         if ((DCBX_INVALID_COS_BW != ets->cos_params[0].bw_tbl) &&
 489             (DCBX_INVALID_COS_BW != ets->cos_params[1].bw_tbl)) {
 490                 u32 bw_tbl_0 = ets->cos_params[0].bw_tbl;
 491                 u32 bw_tbl_1 = ets->cos_params[1].bw_tbl;
 492                 /* Do not allow 0-100 configuration
 493                  * since PBF does not support it
 494                  * force 1-99 instead
 495                  */
 496                 if (bw_tbl_0 == 0) {
 497                         bw_tbl_0 = 1;
 498                         bw_tbl_1 = 99;
 499                 } else if (bw_tbl_1 == 0) {
 500                         bw_tbl_1 = 1;
 501                         bw_tbl_0 = 99;
 502                 }
 503
 504                 bnx2x_ets_bw_limit(&bp->link_params, bw_tbl_0, bw_tbl_1);
 505         } else {
 506                 if (ets->cos_params[0].strict == BNX2X_DCBX_STRICT_COS_HIGHEST)
 507                         rc = bnx2x_ets_strict(&bp->link_params, 0);
 508                 else if (ets->cos_params[1].strict
 509                                         == BNX2X_DCBX_STRICT_COS_HIGHEST)
 510                         rc = bnx2x_ets_strict(&bp->link_params, 1);
 511                 if (rc)
 512                         BNX2X_ERR("update_ets_params failed\n");
 513         }
 514 }
 515
 516 /*
 517  * In E3B0 the configuration may have more than 2 COS.
 518  */
 519 static void bnx2x_dcbx_update_ets_config(struct bnx2x *bp)
 520 {
 521         struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets);
 522         struct bnx2x_ets_params ets_params = { 0 };
 523         u8 i;
 524
 525         ets_params.num_of_cos = ets->num_of_cos;
 526
 527         for (i = 0; i < ets->num_of_cos; i++) {
 528                 /* COS is SP */
 529                 if (ets->cos_params[i].strict != BNX2X_DCBX_STRICT_INVALID) {
 530                         if (ets->cos_params[i].bw_tbl != DCBX_INVALID_COS_BW) {
 531                                 BNX2X_ERR("COS can't be not BW and not SP\n");
 532                                 return;
 533                         }
 534
 535                         ets_params.cos[i].state = bnx2x_cos_state_strict;
 536                         ets_params.cos[i].params.sp_params.pri =
 537                                                 ets->cos_params[i].strict;
 538                 } else { /* COS is BW */
 539                         if (ets->cos_params[i].bw_tbl == DCBX_INVALID_COS_BW) {
 540                                 BNX2X_ERR("COS can't be not BW and not SP\n");
 541                                 return;
 542                         }
 543                         ets_params.cos[i].state = bnx2x_cos_state_bw;
 544                         ets_params.cos[i].params.bw_params.bw =
 545                                                 (u8)ets->cos_params[i].bw_tbl;
 546                 }
 547         }
 548
 549         /* Configure the ETS in HW */
 550         if (bnx2x_ets_e3b0_config(&bp->link_params, &bp->link_vars,
 551                                   &ets_params)) {
 552                 BNX2X_ERR("bnx2x_ets_e3b0_config failed\n");
 553                 bnx2x_ets_disabled(&bp->link_params, &bp->link_vars);
 554         }
 555 }
 556
 557 static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp)
 558 {
 559         bnx2x_ets_disabled(&bp->link_params, &bp->link_vars);
 560
 561         if (!bp->dcbx_port_params.ets.enabled ||
 562             (bp->dcbx_error & DCBX_REMOTE_MIB_ERROR))
 563                 return;
 564
 565         if (CHIP_IS_E3B0(bp))
 566                 bnx2x_dcbx_update_ets_config(bp);
 567         else
 568                 bnx2x_dcbx_2cos_limit_update_ets_config(bp);
 569 }
 570
 571 #ifdef BCM_DCBNL
 572 static int bnx2x_dcbx_read_shmem_remote_mib(struct bnx2x *bp)
 573 {
 574         struct lldp_remote_mib remote_mib = {0};
 575         u32 dcbx_remote_mib_offset = SHMEM2_RD(bp, dcbx_remote_mib_offset);
 576         int rc;
 577
 578         DP(BNX2X_MSG_DCB, "dcbx_remote_mib_offset 0x%x\n",
 579            dcbx_remote_mib_offset);
 580
 581         if (SHMEM_DCBX_REMOTE_MIB_NONE == dcbx_remote_mib_offset) {
 582                 BNX2X_ERR("FW doesn't support dcbx_remote_mib_offset\n");
 583                 return -EINVAL;
 584         }
 585
 586         rc = bnx2x_dcbx_read_mib(bp, (u32 *)&remote_mib, dcbx_remote_mib_offset,
 587                                  DCBX_READ_REMOTE_MIB);
 588
 589         if (rc) {
 590                 BNX2X_ERR("Faild to read remote mib from FW\n");
 591                 return rc;
 592         }
 593
 594         /* save features and flags */
 595         bp->dcbx_remote_feat = remote_mib.features;
 596         bp->dcbx_remote_flags = remote_mib.flags;
 597         return 0;
 598 }
 599 #endif
 600
 601 static int bnx2x_dcbx_read_shmem_neg_results(struct bnx2x *bp)
 602 {
 603         struct lldp_local_mib local_mib = {0};
 604         u32 dcbx_neg_res_offset = SHMEM2_RD(bp, dcbx_neg_res_offset);
 605         int rc;
 606
 607         DP(BNX2X_MSG_DCB, "dcbx_neg_res_offset 0x%x\n", dcbx_neg_res_offset);
 608
 609         if (SHMEM_DCBX_NEG_RES_NONE == dcbx_neg_res_offset) {
 610                 BNX2X_ERR("FW doesn't support dcbx_neg_res_offset\n");
 611                 return -EINVAL;
 612         }
 613
 614         rc = bnx2x_dcbx_read_mib(bp, (u32 *)&local_mib, dcbx_neg_res_offset,
 615                                  DCBX_READ_LOCAL_MIB);
 616
 617         if (rc) {
 618                 BNX2X_ERR("Faild to read local mib from FW\n");
 619                 return rc;
 620         }
 621
 622         /* save features and error */
 623         bp->dcbx_local_feat = local_mib.features;
 624         bp->dcbx_error = local_mib.error;
 625         return 0;
 626 }
 627
 628
 629 #ifdef BCM_DCBNL
 630 static inline
 631 u8 bnx2x_dcbx_dcbnl_app_up(struct dcbx_app_priority_entry *ent)
 632 {
 633         u8 pri;
 634
 635         /* Choose the highest priority */
 636         for (pri = MAX_PFC_PRIORITIES - 1; pri > 0; pri--)
 637                 if (ent->pri_bitmap & (1 << pri))
 638                         break;
 639         return pri;
 640 }
 641
 642 static inline
 643 u8 bnx2x_dcbx_dcbnl_app_idtype(struct dcbx_app_priority_entry *ent)
 644 {
 645         return ((ent->appBitfield & DCBX_APP_ENTRY_SF_MASK) ==
 646                 DCBX_APP_SF_PORT) ? DCB_APP_IDTYPE_PORTNUM :
 647                 DCB_APP_IDTYPE_ETHTYPE;
 648 }
 649
 650 int bnx2x_dcbnl_update_applist(struct bnx2x *bp, bool delall)
 651 {
 652         int i, err = 0;
 653
 654         for (i = 0; i < DCBX_MAX_APP_PROTOCOL && err == 0; i++) {
 655                 struct dcbx_app_priority_entry *ent =
 656                         &bp->dcbx_local_feat.app.app_pri_tbl[i];
 657
 658                 if (ent->appBitfield & DCBX_APP_ENTRY_VALID) {
 659                         u8 up = bnx2x_dcbx_dcbnl_app_up(ent);
 660
 661                         /* avoid invalid user-priority */
 662                         if (up) {
 663                                 struct dcb_app app;
 664                                 app.selector = bnx2x_dcbx_dcbnl_app_idtype(ent);
 665                                 app.protocol = ent->app_id;
 666                                 app.priority = delall ? 0 : up;
 667                                 err = dcb_setapp(bp->dev, &app);
 668                         }
 669                 }
 670         }
 671         return err;
 672 }
 673 #endif
 674
 675 static inline void bnx2x_dcbx_update_tc_mapping(struct bnx2x *bp)
 676 {
 677         u8 prio, cos;
 678         for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++) {
 679                 for (prio = 0; prio < BNX2X_MAX_PRIORITY; prio++) {
 680                         if (bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask
 681                             & (1 << prio)) {
 682                                 bp->prio_to_cos[prio] = cos;
 683                                 DP(BNX2X_MSG_DCB,
 684                                    "tx_mapping %d --> %d\n", prio, cos);
 685                         }
 686                 }
 687         }
 688
 689         /* setup tc must be called under rtnl lock, but we can't take it here
 690          * as we are handling an attetntion on a work queue which must be
 691          * flushed at some rtnl-locked contexts (e.g. if down)
 692          */
 693         if (!test_and_set_bit(BNX2X_SP_RTNL_SETUP_TC, &bp->sp_rtnl_state))
 694                 schedule_delayed_work(&bp->sp_rtnl_task, 0);
 695 }
 696
 697 void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state)
 698 {
 699         switch (state) {
 700         case BNX2X_DCBX_STATE_NEG_RECEIVED:
 701                 {
 702                         DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_NEG_RECEIVED\n");
 703 #ifdef BCM_DCBNL
 704                         /**
 705                          * Delete app tlvs from dcbnl before reading new
 706                          * negotiation results
 707                          */
 708                         bnx2x_dcbnl_update_applist(bp, true);
 709
 710                         /* Read rmeote mib if dcbx is in the FW */
 711                         if (bnx2x_dcbx_read_shmem_remote_mib(bp))
 712                                 return;
 713 #endif
 714                         /* Read neg results if dcbx is in the FW */
 715                         if (bnx2x_dcbx_read_shmem_neg_results(bp))
 716                                 return;
 717
 718                         bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat,
 719                                                   bp->dcbx_error);
 720
 721                         bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat,
 722                                                  bp->dcbx_error);
 723
 724                         /* mark DCBX result for PMF migration */
 725                         bnx2x_update_drv_flags(bp,
 726                                                1 << DRV_FLAGS_DCB_CONFIGURED,
 727                                                1);
 728 #ifdef BCM_DCBNL
 729                         /*
 730                          * Add new app tlvs to dcbnl
 731                          */
 732                         bnx2x_dcbnl_update_applist(bp, false);
 733 #endif
 734                         /*
 735                          * reconfigure the netdevice with the results of the new
 736                          * dcbx negotiation.
 737                          */
 738                         bnx2x_dcbx_update_tc_mapping(bp);
 739
 740                         /*
 741                          * allow other funtions to update their netdevices
 742                          * accordingly
 743                          */
 744                         if (IS_MF(bp))
 745                                 bnx2x_link_sync_notify(bp);
 746
 747                         bnx2x_dcbx_stop_hw_tx(bp);
 748
 749                         return;
 750                 }
 751         case BNX2X_DCBX_STATE_TX_PAUSED:
 752                 DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_TX_PAUSED\n");
 753                 bnx2x_pfc_set_pfc(bp);
 754
 755                 bnx2x_dcbx_update_ets_params(bp);
 756                 bnx2x_dcbx_resume_hw_tx(bp);
 757
 758                 return;
 759         case BNX2X_DCBX_STATE_TX_RELEASED:
 760                 DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_TX_RELEASED\n");
 761                 bnx2x_fw_command(bp, DRV_MSG_CODE_DCBX_PMF_DRV_OK, 0);
 762 #ifdef BCM_DCBNL
 763                 /*
 764                  * Send a notification for the new negotiated parameters
 765                  */
 766                 dcbnl_cee_notify(bp->dev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0);
 767 #endif
 768                 return;
 769         default:
 770                 BNX2X_ERR("Unknown DCBX_STATE\n");
 771         }
 772 }
 773
 774 #define LLDP_ADMIN_MIB_OFFSET(bp)       (PORT_MAX*sizeof(struct lldp_params) + \
 775                                       BP_PORT(bp)*sizeof(struct lldp_admin_mib))
 776
 777 static void bnx2x_dcbx_admin_mib_updated_params(struct bnx2x *bp,
 778                                 u32 dcbx_lldp_params_offset)
 779 {
 780         struct lldp_admin_mib admin_mib;
 781         u32 i, other_traf_type = PREDEFINED_APP_IDX_MAX, traf_type = 0;
 782         u32 offset = dcbx_lldp_params_offset + LLDP_ADMIN_MIB_OFFSET(bp);
 783
 784         /*shortcuts*/
 785         struct dcbx_features *af = &admin_mib.features;
 786         struct bnx2x_config_dcbx_params *dp = &bp->dcbx_config_params;
 787
 788         memset(&admin_mib, 0, sizeof(struct lldp_admin_mib));
 789
 790         /* Read the data first */
 791         bnx2x_read_data(bp, (u32 *)&admin_mib, offset,
 792                         sizeof(struct lldp_admin_mib));
 793
 794         if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON)
 795                 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED);
 796         else
 797                 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED);
 798
 799         if (dp->overwrite_settings == BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE) {
 800
 801                 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_CEE_VERSION_MASK);
 802                 admin_mib.ver_cfg_flags |=
 803                         (dp->admin_dcbx_version << DCBX_CEE_VERSION_SHIFT) &
 804                          DCBX_CEE_VERSION_MASK;
 805
 806                 af->ets.enabled = (u8)dp->admin_ets_enable;
 807
 808                 af->pfc.enabled = (u8)dp->admin_pfc_enable;
 809
 810                 /* FOR IEEE dp->admin_tc_supported_tx_enable */
 811                 if (dp->admin_ets_configuration_tx_enable)
 812                         SET_FLAGS(admin_mib.ver_cfg_flags,
 813                                   DCBX_ETS_CONFIG_TX_ENABLED);
 814                 else
 815                         RESET_FLAGS(admin_mib.ver_cfg_flags,
 816                                     DCBX_ETS_CONFIG_TX_ENABLED);
 817                 /* For IEEE admin_ets_recommendation_tx_enable */
 818                 if (dp->admin_pfc_tx_enable)
 819                         SET_FLAGS(admin_mib.ver_cfg_flags,
 820                                   DCBX_PFC_CONFIG_TX_ENABLED);
 821                 else
 822                         RESET_FLAGS(admin_mib.ver_cfg_flags,
 823                                   DCBX_PFC_CONFIG_TX_ENABLED);
 824
 825                 if (dp->admin_application_priority_tx_enable)
 826                         SET_FLAGS(admin_mib.ver_cfg_flags,
 827                                   DCBX_APP_CONFIG_TX_ENABLED);
 828                 else
 829                         RESET_FLAGS(admin_mib.ver_cfg_flags,
 830                                   DCBX_APP_CONFIG_TX_ENABLED);
 831
 832                 if (dp->admin_ets_willing)
 833                         SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING);
 834                 else
 835                         RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING);
 836                 /* For IEEE admin_ets_reco_valid */
 837                 if (dp->admin_pfc_willing)
 838                         SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING);
 839                 else
 840                         RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING);
 841
 842                 if (dp->admin_app_priority_willing)
 843                         SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING);
 844                 else
 845                         RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING);
 846
 847                 for (i = 0 ; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++) {
 848                         DCBX_PG_BW_SET(af->ets.pg_bw_tbl, i,
 849                                 (u8)dp->admin_configuration_bw_precentage[i]);
 850
 851                         DP(BNX2X_MSG_DCB, "pg_bw_tbl[%d] = %02x\n",
 852                            i, DCBX_PG_BW_GET(af->ets.pg_bw_tbl, i));
 853                 }
 854
 855                 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) {
 856                         DCBX_PRI_PG_SET(af->ets.pri_pg_tbl, i,
 857                                         (u8)dp->admin_configuration_ets_pg[i]);
 858
 859                         DP(BNX2X_MSG_DCB, "pri_pg_tbl[%d] = %02x\n",
 860                            i, DCBX_PRI_PG_GET(af->ets.pri_pg_tbl, i));
 861                 }
 862
 863                 /*For IEEE admin_recommendation_bw_precentage
 864                  *For IEEE admin_recommendation_ets_pg */
 865                 af->pfc.pri_en_bitmap = (u8)dp->admin_pfc_bitmap;
 866                 for (i = 0; i < DCBX_CONFIG_MAX_APP_PROTOCOL; i++) {
 867                         if (dp->admin_priority_app_table[i].valid) {
 868                                 struct bnx2x_admin_priority_app_table *table =
 869                                         dp->admin_priority_app_table;
 870                                 if ((ETH_TYPE_FCOE == table[i].app_id) &&
 871                                    (TRAFFIC_TYPE_ETH == table[i].traffic_type))
 872                                         traf_type = FCOE_APP_IDX;
 873                                 else if ((TCP_PORT_ISCSI == table[i].app_id) &&
 874                                    (TRAFFIC_TYPE_PORT == table[i].traffic_type))
 875                                         traf_type = ISCSI_APP_IDX;
 876                                 else
 877                                         traf_type = other_traf_type++;
 878
 879                                 af->app.app_pri_tbl[traf_type].app_id =
 880                                         table[i].app_id;
 881
 882                                 af->app.app_pri_tbl[traf_type].pri_bitmap =
 883                                         (u8)(1 << table[i].priority);
 884
 885                                 af->app.app_pri_tbl[traf_type].appBitfield =
 886                                     (DCBX_APP_ENTRY_VALID);
 887
 888                                 af->app.app_pri_tbl[traf_type].appBitfield |=
 889                                    (TRAFFIC_TYPE_ETH == table[i].traffic_type) ?
 890                                         DCBX_APP_SF_ETH_TYPE : DCBX_APP_SF_PORT;
 891                         }
 892                 }
 893
 894                 af->app.default_pri = (u8)dp->admin_default_priority;
 895
 896         }
 897
 898         /* Write the data. */
 899         bnx2x_write_data(bp, (u32 *)&admin_mib, offset,
 900                          sizeof(struct lldp_admin_mib));
 901
 902 }
 903
 904 void bnx2x_dcbx_set_state(struct bnx2x *bp, bool dcb_on, u32 dcbx_enabled)
 905 {
 906         if (!CHIP_IS_E1x(bp)) {
 907                 bp->dcb_state = dcb_on;
 908                 bp->dcbx_enabled = dcbx_enabled;
 909         } else {
 910                 bp->dcb_state = false;
 911                 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_INVALID;
 912         }
 913         DP(BNX2X_MSG_DCB, "DCB state [%s:%s]\n",
 914            dcb_on ? "ON" : "OFF",
 915            dcbx_enabled == BNX2X_DCBX_ENABLED_OFF ? "user-mode" :
 916            dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF ? "on-chip static" :
 917            dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON ?
 918            "on-chip with negotiation" : "invalid");
 919 }
 920
 921 void bnx2x_dcbx_init_params(struct bnx2x *bp)
 922 {
 923         bp->dcbx_config_params.admin_dcbx_version = 0x0; /* 0 - CEE; 1 - IEEE */
 924         bp->dcbx_config_params.admin_ets_willing = 1;
 925         bp->dcbx_config_params.admin_pfc_willing = 1;
 926         bp->dcbx_config_params.overwrite_settings = 1;
 927         bp->dcbx_config_params.admin_ets_enable = 1;
 928         bp->dcbx_config_params.admin_pfc_enable = 1;
 929         bp->dcbx_config_params.admin_tc_supported_tx_enable = 1;
 930         bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
 931         bp->dcbx_config_params.admin_pfc_tx_enable = 1;
 932         bp->dcbx_config_params.admin_application_priority_tx_enable = 1;
 933         bp->dcbx_config_params.admin_ets_reco_valid = 1;
 934         bp->dcbx_config_params.admin_app_priority_willing = 1;
 935         bp->dcbx_config_params.admin_configuration_bw_precentage[0] = 100;
 936         bp->dcbx_config_params.admin_configuration_bw_precentage[1] = 0;
 937         bp->dcbx_config_params.admin_configuration_bw_precentage[2] = 0;
 938         bp->dcbx_config_params.admin_configuration_bw_precentage[3] = 0;
 939         bp->dcbx_config_params.admin_configuration_bw_precentage[4] = 0;
 940         bp->dcbx_config_params.admin_configuration_bw_precentage[5] = 0;
 941         bp->dcbx_config_params.admin_configuration_bw_precentage[6] = 0;
 942         bp->dcbx_config_params.admin_configuration_bw_precentage[7] = 0;
 943         bp->dcbx_config_params.admin_configuration_ets_pg[0] = 0;
 944         bp->dcbx_config_params.admin_configuration_ets_pg[1] = 0;
 945         bp->dcbx_config_params.admin_configuration_ets_pg[2] = 0;
 946         bp->dcbx_config_params.admin_configuration_ets_pg[3] = 0;
 947         bp->dcbx_config_params.admin_configuration_ets_pg[4] = 0;
 948         bp->dcbx_config_params.admin_configuration_ets_pg[5] = 0;
 949         bp->dcbx_config_params.admin_configuration_ets_pg[6] = 0;
 950         bp->dcbx_config_params.admin_configuration_ets_pg[7] = 0;
 951         bp->dcbx_config_params.admin_recommendation_bw_precentage[0] = 100;
 952         bp->dcbx_config_params.admin_recommendation_bw_precentage[1] = 0;
 953         bp->dcbx_config_params.admin_recommendation_bw_precentage[2] = 0;
 954         bp->dcbx_config_params.admin_recommendation_bw_precentage[3] = 0;
 955         bp->dcbx_config_params.admin_recommendation_bw_precentage[4] = 0;
 956         bp->dcbx_config_params.admin_recommendation_bw_precentage[5] = 0;
 957         bp->dcbx_config_params.admin_recommendation_bw_precentage[6] = 0;
 958         bp->dcbx_config_params.admin_recommendation_bw_precentage[7] = 0;
 959         bp->dcbx_config_params.admin_recommendation_ets_pg[0] = 0;
 960         bp->dcbx_config_params.admin_recommendation_ets_pg[1] = 1;
 961         bp->dcbx_config_params.admin_recommendation_ets_pg[2] = 2;
 962         bp->dcbx_config_params.admin_recommendation_ets_pg[3] = 3;
 963         bp->dcbx_config_params.admin_recommendation_ets_pg[4] = 4;
 964         bp->dcbx_config_params.admin_recommendation_ets_pg[5] = 5;
 965         bp->dcbx_config_params.admin_recommendation_ets_pg[6] = 6;
 966         bp->dcbx_config_params.admin_recommendation_ets_pg[7] = 7;
 967         bp->dcbx_config_params.admin_pfc_bitmap = 0x0;
 968         bp->dcbx_config_params.admin_priority_app_table[0].valid = 0;
 969         bp->dcbx_config_params.admin_priority_app_table[1].valid = 0;
 970         bp->dcbx_config_params.admin_priority_app_table[2].valid = 0;
 971         bp->dcbx_config_params.admin_priority_app_table[3].valid = 0;
 972         bp->dcbx_config_params.admin_default_priority = 0;
 973 }
 974
 975 void bnx2x_dcbx_init(struct bnx2x *bp)
 976 {
 977         u32 dcbx_lldp_params_offset = SHMEM_LLDP_DCBX_PARAMS_NONE;
 978
 979         if (bp->dcbx_enabled <= 0)
 980                 return;
 981
 982         /* validate:
 983          * chip of good for dcbx version,
 984          * dcb is wanted
 985          * the function is pmf
 986          * shmem2 contains DCBX support fields
 987          */
 988         DP(BNX2X_MSG_DCB, "dcb_state %d bp->port.pmf %d\n",
 989            bp->dcb_state, bp->port.pmf);
 990
 991         if (bp->dcb_state == BNX2X_DCB_STATE_ON && bp->port.pmf &&
 992             SHMEM2_HAS(bp, dcbx_lldp_params_offset)) {
 993                 dcbx_lldp_params_offset =
 994                         SHMEM2_RD(bp, dcbx_lldp_params_offset);
 995
 996                 DP(BNX2X_MSG_DCB, "dcbx_lldp_params_offset 0x%x\n",
 997                    dcbx_lldp_params_offset);
 998
 999                 bnx2x_update_drv_flags(bp, 1 << DRV_FLAGS_DCB_CONFIGURED, 0);
1000
1001                 if (SHMEM_LLDP_DCBX_PARAMS_NONE != dcbx_lldp_params_offset) {
1002                         bnx2x_dcbx_admin_mib_updated_params(bp,
1003                                 dcbx_lldp_params_offset);
1004
1005                         /* Let HW start negotiation */
1006                         bnx2x_fw_command(bp,
1007                                          DRV_MSG_CODE_DCBX_ADMIN_PMF_MSG, 0);
1008                 }
1009         }
1010 }
1011 static void
1012 bnx2x_dcbx_print_cos_params(struct bnx2x *bp,
1013                             struct bnx2x_func_tx_start_params *pfc_fw_cfg)
1014 {
1015         u8 pri = 0;
1016         u8 cos = 0;
1017
1018         DP(BNX2X_MSG_DCB,
1019            "pfc_fw_cfg->dcb_version %x\n", pfc_fw_cfg->dcb_version);
1020         DP(BNX2X_MSG_DCB,
1021            "pdev->params.dcbx_port_params.pfc.priority_non_pauseable_mask %x\n",
1022            bp->dcbx_port_params.pfc.priority_non_pauseable_mask);
1023
1024         for (cos = 0 ; cos < bp->dcbx_port_params.ets.num_of_cos ; cos++) {
1025                 DP(BNX2X_MSG_DCB,
1026                    "pdev->params.dcbx_port_params.ets.cos_params[%d].pri_bitmask %x\n",
1027                    cos, bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask);
1028
1029                 DP(BNX2X_MSG_DCB,
1030                    "pdev->params.dcbx_port_params.ets.cos_params[%d].bw_tbl %x\n",
1031                    cos, bp->dcbx_port_params.ets.cos_params[cos].bw_tbl);
1032
1033                 DP(BNX2X_MSG_DCB,
1034                    "pdev->params.dcbx_port_params.ets.cos_params[%d].strict %x\n",
1035                    cos, bp->dcbx_port_params.ets.cos_params[cos].strict);
1036
1037                 DP(BNX2X_MSG_DCB,
1038                    "pdev->params.dcbx_port_params.ets.cos_params[%d].pauseable %x\n",
1039                    cos, bp->dcbx_port_params.ets.cos_params[cos].pauseable);
1040         }
1041
1042         for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) {
1043                 DP(BNX2X_MSG_DCB,
1044                    "pfc_fw_cfg->traffic_type_to_priority_cos[%d].priority %x\n",
1045                    pri, pfc_fw_cfg->traffic_type_to_priority_cos[pri].priority);
1046
1047                 DP(BNX2X_MSG_DCB,
1048                    "pfc_fw_cfg->traffic_type_to_priority_cos[%d].cos %x\n",
1049                    pri, pfc_fw_cfg->traffic_type_to_priority_cos[pri].cos);
1050         }
1051 }
1052
1053 /* fills help_data according to pg_info */
1054 static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp,
1055                                             u32 *pg_pri_orginal_spread,
1056                                             struct pg_help_data *help_data)
1057 {
1058         bool pg_found  = false;
1059         u32 i, traf_type, add_traf_type, add_pg;
1060         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1061         struct pg_entry_help_data *data = help_data->data; /*shotcut*/
1062
1063         /* Set to invalid */
1064         for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++)
1065                 data[i].pg = DCBX_ILLEGAL_PG;
1066
1067         for (add_traf_type = 0;
1068              add_traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX; add_traf_type++) {
1069                 pg_found = false;
1070                 if (ttp[add_traf_type] < MAX_PFC_PRIORITIES) {
1071                         add_pg = (u8)pg_pri_orginal_spread[ttp[add_traf_type]];
1072                         for (traf_type = 0;
1073                              traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1074                              traf_type++) {
1075                                 if (data[traf_type].pg == add_pg) {
1076                                         if (!(data[traf_type].pg_priority &
1077                                              (1 << ttp[add_traf_type])))
1078                                                 data[traf_type].
1079                                                         num_of_dif_pri++;
1080                                         data[traf_type].pg_priority |=
1081                                                 (1 << ttp[add_traf_type]);
1082                                         pg_found = true;
1083                                         break;
1084                                 }
1085                         }
1086                         if (false == pg_found) {
1087                                 data[help_data->num_of_pg].pg = add_pg;
1088                                 data[help_data->num_of_pg].pg_priority =
1089                                                 (1 << ttp[add_traf_type]);
1090                                 data[help_data->num_of_pg].num_of_dif_pri = 1;
1091                                 help_data->num_of_pg++;
1092                         }
1093                 }
1094                 DP(BNX2X_MSG_DCB,
1095                    "add_traf_type %d pg_found %s num_of_pg %d\n",
1096                    add_traf_type, (false == pg_found) ? "NO" : "YES",
1097                    help_data->num_of_pg);
1098         }
1099 }
1100
1101 static void bnx2x_dcbx_ets_disabled_entry_data(struct bnx2x *bp,
1102                                                struct cos_help_data *cos_data,
1103                                                u32 pri_join_mask)
1104 {
1105         /* Only one priority than only one COS */
1106         cos_data->data[0].pausable =
1107                 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1108         cos_data->data[0].pri_join_mask = pri_join_mask;
1109         cos_data->data[0].cos_bw = 100;
1110         cos_data->num_of_cos = 1;
1111 }
1112
1113 static inline void bnx2x_dcbx_add_to_cos_bw(struct bnx2x *bp,
1114                                             struct cos_entry_help_data *data,
1115                                             u8 pg_bw)
1116 {
1117         if (data->cos_bw == DCBX_INVALID_COS_BW)
1118                 data->cos_bw = pg_bw;
1119         else
1120                 data->cos_bw += pg_bw;
1121 }
1122
1123 static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp,
1124                         struct cos_help_data *cos_data,
1125                         u32 *pg_pri_orginal_spread,
1126                         struct dcbx_ets_feature *ets)
1127 {
1128         u32     pri_tested      = 0;
1129         u8      i               = 0;
1130         u8      entry           = 0;
1131         u8      pg_entry        = 0;
1132         u8      num_of_pri      = LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1133
1134         cos_data->data[0].pausable = true;
1135         cos_data->data[1].pausable = false;
1136         cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0;
1137
1138         for (i = 0 ; i < num_of_pri ; i++) {
1139                 pri_tested = 1 << bp->dcbx_port_params.
1140                                         app.traffic_type_priority[i];
1141
1142                 if (pri_tested & DCBX_PFC_PRI_NON_PAUSE_MASK(bp)) {
1143                         cos_data->data[1].pri_join_mask |= pri_tested;
1144                         entry = 1;
1145                 } else {
1146                         cos_data->data[0].pri_join_mask |= pri_tested;
1147                         entry = 0;
1148                 }
1149                 pg_entry = (u8)pg_pri_orginal_spread[bp->dcbx_port_params.
1150                                                 app.traffic_type_priority[i]];
1151                 /* There can be only one strict pg */
1152                 if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES)
1153                         bnx2x_dcbx_add_to_cos_bw(bp, &cos_data->data[entry],
1154                                 DCBX_PG_BW_GET(ets->pg_bw_tbl, pg_entry));
1155                 else
1156                         /* If we join a group and one is strict
1157                          * than the bw rulls */
1158                         cos_data->data[entry].strict =
1159                                                 BNX2X_DCBX_STRICT_COS_HIGHEST;
1160         }
1161         if ((0 == cos_data->data[0].pri_join_mask) &&
1162             (0 == cos_data->data[1].pri_join_mask))
1163                 BNX2X_ERR("dcbx error: Both groups must have priorities\n");
1164 }
1165
1166
1167 #ifndef POWER_OF_2
1168 #define POWER_OF_2(x)   ((0 != x) && (0 == (x & (x-1))))
1169 #endif
1170
1171 static void bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params(struct bnx2x *bp,
1172                                               struct pg_help_data *pg_help_data,
1173                                               struct cos_help_data *cos_data,
1174                                               u32 pri_join_mask,
1175                                               u8 num_of_dif_pri)
1176 {
1177         u8 i = 0;
1178         u32 pri_tested = 0;
1179         u32 pri_mask_without_pri = 0;
1180         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1181         /*debug*/
1182         if (num_of_dif_pri == 1) {
1183                 bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data, pri_join_mask);
1184                 return;
1185         }
1186         /* single priority group */
1187         if (pg_help_data->data[0].pg < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1188                 /* If there are both pauseable and non-pauseable priorities,
1189                  * the pauseable priorities go to the first queue and
1190                  * the non-pauseable priorities go to the second queue.
1191                  */
1192                 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1193                         /* Pauseable */
1194                         cos_data->data[0].pausable = true;
1195                         /* Non pauseable.*/
1196                         cos_data->data[1].pausable = false;
1197
1198                         if (2 == num_of_dif_pri) {
1199                                 cos_data->data[0].cos_bw = 50;
1200                                 cos_data->data[1].cos_bw = 50;
1201                         }
1202
1203                         if (3 == num_of_dif_pri) {
1204                                 if (POWER_OF_2(DCBX_PFC_PRI_GET_PAUSE(bp,
1205                                                         pri_join_mask))) {
1206                                         cos_data->data[0].cos_bw = 33;
1207                                         cos_data->data[1].cos_bw = 67;
1208                                 } else {
1209                                         cos_data->data[0].cos_bw = 67;
1210                                         cos_data->data[1].cos_bw = 33;
1211                                 }
1212                         }
1213
1214                 } else if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask)) {
1215                         /* If there are only pauseable priorities,
1216                          * then one/two priorities go to the first queue
1217                          * and one priority goes to the second queue.
1218                          */
1219                         if (2 == num_of_dif_pri) {
1220                                 cos_data->data[0].cos_bw = 50;
1221                                 cos_data->data[1].cos_bw = 50;
1222                         } else {
1223                                 cos_data->data[0].cos_bw = 67;
1224                                 cos_data->data[1].cos_bw = 33;
1225                         }
1226                         cos_data->data[1].pausable = true;
1227                         cos_data->data[0].pausable = true;
1228                         /* All priorities except FCOE */
1229                         cos_data->data[0].pri_join_mask = (pri_join_mask &
1230                                 ((u8)~(1 << ttp[LLFC_TRAFFIC_TYPE_FCOE])));
1231                         /* Only FCOE priority.*/
1232                         cos_data->data[1].pri_join_mask =
1233                                 (1 << ttp[LLFC_TRAFFIC_TYPE_FCOE]);
1234                 } else
1235                         /* If there are only non-pauseable priorities,
1236                          * they will all go to the same queue.
1237                          */
1238                         bnx2x_dcbx_ets_disabled_entry_data(bp,
1239                                                 cos_data, pri_join_mask);
1240         } else {
1241                 /* priority group which is not BW limited (PG#15):*/
1242                 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1243                         /* If there are both pauseable and non-pauseable
1244                          * priorities, the pauseable priorities go to the first
1245                          * queue and the non-pauseable priorities
1246                          * go to the second queue.
1247                          */
1248                         if (DCBX_PFC_PRI_GET_PAUSE(bp, pri_join_mask) >
1249                             DCBX_PFC_PRI_GET_NON_PAUSE(bp, pri_join_mask)) {
1250                                 cos_data->data[0].strict =
1251                                         BNX2X_DCBX_STRICT_COS_HIGHEST;
1252                                 cos_data->data[1].strict =
1253                                         BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
1254                                                 BNX2X_DCBX_STRICT_COS_HIGHEST);
1255                         } else {
1256                                 cos_data->data[0].strict =
1257                                         BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
1258                                                 BNX2X_DCBX_STRICT_COS_HIGHEST);
1259                                 cos_data->data[1].strict =
1260                                         BNX2X_DCBX_STRICT_COS_HIGHEST;
1261                         }
1262                         /* Pauseable */
1263                         cos_data->data[0].pausable = true;
1264                         /* Non pause-able.*/
1265                         cos_data->data[1].pausable = false;
1266                 } else {
1267                         /* If there are only pauseable priorities or
1268                          * only non-pauseable,* the lower priorities go
1269                          * to the first queue and the higherpriorities go
1270                          * to the second queue.
1271                          */
1272                         cos_data->data[0].pausable =
1273                                 cos_data->data[1].pausable =
1274                                 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1275
1276                         for (i = 0 ; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++) {
1277                                 pri_tested = 1 << bp->dcbx_port_params.
1278                                         app.traffic_type_priority[i];
1279                                 /* Remove priority tested */
1280                                 pri_mask_without_pri =
1281                                         (pri_join_mask & ((u8)(~pri_tested)));
1282                                 if (pri_mask_without_pri < pri_tested)
1283                                         break;
1284                         }
1285
1286                         if (i == LLFC_DRIVER_TRAFFIC_TYPE_MAX)
1287                                 BNX2X_ERR("Invalid value for pri_join_mask - could not find a priority\n");
1288
1289                         cos_data->data[0].pri_join_mask = pri_mask_without_pri;
1290                         cos_data->data[1].pri_join_mask = pri_tested;
1291                         /* Both queues are strict priority,
1292                          * and that with the highest priority
1293                          * gets the highest strict priority in the arbiter.
1294                          */
1295                         cos_data->data[0].strict =
1296                                         BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
1297                                                 BNX2X_DCBX_STRICT_COS_HIGHEST);
1298                         cos_data->data[1].strict =
1299                                         BNX2X_DCBX_STRICT_COS_HIGHEST;
1300                 }
1301         }
1302 }
1303
1304 static void bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params(
1305                             struct bnx2x                *bp,
1306                             struct  pg_help_data        *pg_help_data,
1307                             struct dcbx_ets_feature     *ets,
1308                             struct cos_help_data        *cos_data,
1309                             u32                 *pg_pri_orginal_spread,
1310                             u32                         pri_join_mask,
1311                             u8                          num_of_dif_pri)
1312 {
1313         u8 i = 0;
1314         u8 pg[DCBX_COS_MAX_NUM_E2] = { 0 };
1315
1316         /* If there are both pauseable and non-pauseable priorities,
1317          * the pauseable priorities go to the first queue and
1318          * the non-pauseable priorities go to the second queue.
1319          */
1320         if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1321                 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp,
1322                                          pg_help_data->data[0].pg_priority) ||
1323                     IS_DCBX_PFC_PRI_MIX_PAUSE(bp,
1324                                          pg_help_data->data[1].pg_priority)) {
1325                         /* If one PG contains both pauseable and
1326                          * non-pauseable priorities then ETS is disabled.
1327                          */
1328                         bnx2x_dcbx_separate_pauseable_from_non(bp, cos_data,
1329                                         pg_pri_orginal_spread, ets);
1330                         bp->dcbx_port_params.ets.enabled = false;
1331                         return;
1332                 }
1333
1334                 /* Pauseable */
1335                 cos_data->data[0].pausable = true;
1336                 /* Non pauseable. */
1337                 cos_data->data[1].pausable = false;
1338                 if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp,
1339                                 pg_help_data->data[0].pg_priority)) {
1340                         /* 0 is pauseable */
1341                         cos_data->data[0].pri_join_mask =
1342                                 pg_help_data->data[0].pg_priority;
1343                         pg[0] = pg_help_data->data[0].pg;
1344                         cos_data->data[1].pri_join_mask =
1345                                 pg_help_data->data[1].pg_priority;
1346                         pg[1] = pg_help_data->data[1].pg;
1347                 } else {/* 1 is pauseable */
1348                         cos_data->data[0].pri_join_mask =
1349                                 pg_help_data->data[1].pg_priority;
1350                         pg[0] = pg_help_data->data[1].pg;
1351                         cos_data->data[1].pri_join_mask =
1352                                 pg_help_data->data[0].pg_priority;
1353                         pg[1] = pg_help_data->data[0].pg;
1354                 }
1355         } else {
1356                 /* If there are only pauseable priorities or
1357                  * only non-pauseable, each PG goes to a queue.
1358                  */
1359                 cos_data->data[0].pausable = cos_data->data[1].pausable =
1360                         IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1361                 cos_data->data[0].pri_join_mask =
1362                         pg_help_data->data[0].pg_priority;
1363                 pg[0] = pg_help_data->data[0].pg;
1364                 cos_data->data[1].pri_join_mask =
1365                         pg_help_data->data[1].pg_priority;
1366                 pg[1] = pg_help_data->data[1].pg;
1367         }
1368
1369         /* There can be only one strict pg */
1370         for (i = 0 ; i < ARRAY_SIZE(pg); i++) {
1371                 if (pg[i] < DCBX_MAX_NUM_PG_BW_ENTRIES)
1372                         cos_data->data[i].cos_bw =
1373                                 DCBX_PG_BW_GET(ets->pg_bw_tbl, pg[i]);
1374                 else
1375                         cos_data->data[i].strict =
1376                                                 BNX2X_DCBX_STRICT_COS_HIGHEST;
1377         }
1378 }
1379
1380 static int bnx2x_dcbx_join_pgs(
1381                               struct bnx2x            *bp,
1382                               struct dcbx_ets_feature *ets,
1383                               struct pg_help_data     *pg_help_data,
1384                               u8                      required_num_of_pg)
1385 {
1386         u8 entry_joined    = pg_help_data->num_of_pg - 1;
1387         u8 entry_removed   = entry_joined + 1;
1388         u8 pg_joined       = 0;
1389
1390         if (required_num_of_pg == 0 || ARRAY_SIZE(pg_help_data->data)
1391                                                 <= pg_help_data->num_of_pg) {
1392
1393                 BNX2X_ERR("required_num_of_pg can't be zero\n");
1394                 return -EINVAL;
1395         }
1396
1397         while (required_num_of_pg < pg_help_data->num_of_pg) {
1398                 entry_joined = pg_help_data->num_of_pg - 2;
1399                 entry_removed = entry_joined + 1;
1400                 /* protect index */
1401                 entry_removed %= ARRAY_SIZE(pg_help_data->data);
1402
1403                 pg_help_data->data[entry_joined].pg_priority |=
1404                         pg_help_data->data[entry_removed].pg_priority;
1405
1406                 pg_help_data->data[entry_joined].num_of_dif_pri +=
1407                         pg_help_data->data[entry_removed].num_of_dif_pri;
1408
1409                 if (pg_help_data->data[entry_joined].pg == DCBX_STRICT_PRI_PG ||
1410                     pg_help_data->data[entry_removed].pg == DCBX_STRICT_PRI_PG)
1411                         /* Entries joined strict priority rules */
1412                         pg_help_data->data[entry_joined].pg =
1413                                                         DCBX_STRICT_PRI_PG;
1414                 else {
1415                         /* Entries can be joined join BW */
1416                         pg_joined = DCBX_PG_BW_GET(ets->pg_bw_tbl,
1417                                         pg_help_data->data[entry_joined].pg) +
1418                                     DCBX_PG_BW_GET(ets->pg_bw_tbl,
1419                                         pg_help_data->data[entry_removed].pg);
1420
1421                         DCBX_PG_BW_SET(ets->pg_bw_tbl,
1422                                 pg_help_data->data[entry_joined].pg, pg_joined);
1423                 }
1424                 /* Joined the entries */
1425                 pg_help_data->num_of_pg--;
1426         }
1427
1428         return 0;
1429 }
1430
1431 static void bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params(
1432                               struct bnx2x              *bp,
1433                               struct pg_help_data       *pg_help_data,
1434                               struct dcbx_ets_feature   *ets,
1435                               struct cos_help_data      *cos_data,
1436                               u32                       *pg_pri_orginal_spread,
1437                               u32                       pri_join_mask,
1438                               u8                        num_of_dif_pri)
1439 {
1440         u8 i = 0;
1441         u32 pri_tested = 0;
1442         u8 entry = 0;
1443         u8 pg_entry = 0;
1444         bool b_found_strict = false;
1445         u8 num_of_pri = LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1446
1447         cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0;
1448         /* If there are both pauseable and non-pauseable priorities,
1449          * the pauseable priorities go to the first queue and the
1450          * non-pauseable priorities go to the second queue.
1451          */
1452         if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask))
1453                 bnx2x_dcbx_separate_pauseable_from_non(bp,
1454                                 cos_data, pg_pri_orginal_spread, ets);
1455         else {
1456                 /* If two BW-limited PG-s were combined to one queue,
1457                  * the BW is their sum.
1458                  *
1459                  * If there are only pauseable priorities or only non-pauseable,
1460                  * and there are both BW-limited and non-BW-limited PG-s,
1461                  * the BW-limited PG/s go to one queue and the non-BW-limited
1462                  * PG/s go to the second queue.
1463                  *
1464                  * If there are only pauseable priorities or only non-pauseable
1465                  * and all are BW limited, then two priorities go to the first
1466                  * queue and one priority goes to the second queue.
1467                  *
1468                  * We will join this two cases:
1469                  * if one is BW limited it will go to the secoend queue
1470                  * otherwise the last priority will get it
1471                  */
1472
1473                 cos_data->data[0].pausable = cos_data->data[1].pausable =
1474                         IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1475
1476                 for (i = 0 ; i < num_of_pri; i++) {
1477                         pri_tested = 1 << bp->dcbx_port_params.
1478                                 app.traffic_type_priority[i];
1479                         pg_entry = (u8)pg_pri_orginal_spread[bp->
1480                                 dcbx_port_params.app.traffic_type_priority[i]];
1481
1482                         if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1483                                 entry = 0;
1484
1485                                 if (i == (num_of_pri-1) &&
1486                                     false == b_found_strict)
1487                                         /* last entry will be handled separately
1488                                          * If no priority is strict than last
1489                                          * enty goes to last queue.*/
1490                                         entry = 1;
1491                                 cos_data->data[entry].pri_join_mask |=
1492                                                                 pri_tested;
1493                                 bnx2x_dcbx_add_to_cos_bw(bp,
1494                                         &cos_data->data[entry],
1495                                         DCBX_PG_BW_GET(ets->pg_bw_tbl,
1496                                                        pg_entry));
1497                         } else {
1498                                 b_found_strict = true;
1499                                 cos_data->data[1].pri_join_mask |= pri_tested;
1500                                 /* If we join a group and one is strict
1501                                  * than the bw rulls */
1502                                 cos_data->data[1].strict =
1503                                         BNX2X_DCBX_STRICT_COS_HIGHEST;
1504                         }
1505                 }
1506         }
1507 }
1508
1509
1510 static void bnx2x_dcbx_2cos_limit_cee_fill_cos_params(struct bnx2x *bp,
1511                                        struct pg_help_data *help_data,
1512                                        struct dcbx_ets_feature *ets,
1513                                        struct cos_help_data *cos_data,
1514                                        u32 *pg_pri_orginal_spread,
1515                                        u32 pri_join_mask,
1516                                        u8 num_of_dif_pri)
1517 {
1518
1519         /* default E2 settings */
1520         cos_data->num_of_cos = DCBX_COS_MAX_NUM_E2;
1521
1522         switch (help_data->num_of_pg) {
1523         case 1:
1524                 bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params(
1525                                                bp,
1526                                                help_data,
1527                                                cos_data,
1528                                                pri_join_mask,
1529                                                num_of_dif_pri);
1530                 break;
1531         case 2:
1532                 bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params(
1533                                             bp,
1534                                             help_data,
1535                                             ets,
1536                                             cos_data,
1537                                             pg_pri_orginal_spread,
1538                                             pri_join_mask,
1539                                             num_of_dif_pri);
1540                 break;
1541
1542         case 3:
1543                 bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params(
1544                                               bp,
1545                                               help_data,
1546                                               ets,
1547                                               cos_data,
1548                                               pg_pri_orginal_spread,
1549                                               pri_join_mask,
1550                                               num_of_dif_pri);
1551                 break;
1552         default:
1553                 BNX2X_ERR("Wrong pg_help_data.num_of_pg\n");
1554                 bnx2x_dcbx_ets_disabled_entry_data(bp,
1555                                                    cos_data, pri_join_mask);
1556         }
1557 }
1558
1559 static int bnx2x_dcbx_spread_strict_pri(struct bnx2x *bp,
1560                                         struct cos_help_data *cos_data,
1561                                         u8 entry,
1562                                         u8 num_spread_of_entries,
1563                                         u8 strict_app_pris)
1564 {
1565         u8 strict_pri = BNX2X_DCBX_STRICT_COS_HIGHEST;
1566         u8 num_of_app_pri = MAX_PFC_PRIORITIES;
1567         u8 app_pri_bit = 0;
1568
1569         while (num_spread_of_entries && num_of_app_pri > 0) {
1570                 app_pri_bit = 1 << (num_of_app_pri - 1);
1571                 if (app_pri_bit & strict_app_pris) {
1572                         struct cos_entry_help_data *data = &cos_data->
1573                                                                 data[entry];
1574                         num_spread_of_entries--;
1575                         if (num_spread_of_entries == 0) {
1576                                 /* last entry needed put all the entries left */
1577                                 data->cos_bw = DCBX_INVALID_COS_BW;
1578                                 data->strict = strict_pri;
1579                                 data->pri_join_mask = strict_app_pris;
1580                                 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1581                                                         data->pri_join_mask);
1582                         } else {
1583                                 strict_app_pris &= ~app_pri_bit;
1584
1585                                 data->cos_bw = DCBX_INVALID_COS_BW;
1586                                 data->strict = strict_pri;
1587                                 data->pri_join_mask = app_pri_bit;
1588                                 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1589                                                         data->pri_join_mask);
1590                         }
1591
1592                         strict_pri =
1593                             BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(strict_pri);
1594                         entry++;
1595                 }
1596
1597                 num_of_app_pri--;
1598         }
1599
1600         if (num_spread_of_entries) {
1601                 BNX2X_ERR("Didn't succeed to spread strict priorities\n");
1602                 return -EINVAL;
1603         }
1604
1605         return 0;
1606 }
1607
1608 static u8 bnx2x_dcbx_cee_fill_strict_pri(struct bnx2x *bp,
1609                                          struct cos_help_data *cos_data,
1610                                          u8 entry,
1611                                          u8 num_spread_of_entries,
1612                                          u8 strict_app_pris)
1613 {
1614
1615         if (bnx2x_dcbx_spread_strict_pri(bp, cos_data, entry,
1616                                          num_spread_of_entries,
1617                                          strict_app_pris)) {
1618                 struct cos_entry_help_data *data = &cos_data->
1619                                                     data[entry];
1620                 /* Fill BW entry */
1621                 data->cos_bw = DCBX_INVALID_COS_BW;
1622                 data->strict = BNX2X_DCBX_STRICT_COS_HIGHEST;
1623                 data->pri_join_mask = strict_app_pris;
1624                 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1625                                  data->pri_join_mask);
1626                 return 1;
1627         }
1628
1629         return num_spread_of_entries;
1630 }
1631
1632 static void bnx2x_dcbx_cee_fill_cos_params(struct bnx2x *bp,
1633                                            struct pg_help_data *help_data,
1634                                            struct dcbx_ets_feature *ets,
1635                                            struct cos_help_data *cos_data,
1636                                            u32 pri_join_mask)
1637
1638 {
1639         u8 need_num_of_entries = 0;
1640         u8 i = 0;
1641         u8 entry = 0;
1642
1643         /*
1644          * if the number of requested PG-s in CEE is greater than 3
1645          * then the results are not determined since this is a violation
1646          * of the standard.
1647          */
1648         if (help_data->num_of_pg > DCBX_COS_MAX_NUM_E3B0) {
1649                 if (bnx2x_dcbx_join_pgs(bp, ets, help_data,
1650                                         DCBX_COS_MAX_NUM_E3B0)) {
1651                         BNX2X_ERR("Unable to reduce the number of PGs - we will disables ETS\n");
1652                         bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data,
1653                                                            pri_join_mask);
1654                         return;
1655                 }
1656         }
1657
1658         for (i = 0 ; i < help_data->num_of_pg; i++) {
1659                 struct pg_entry_help_data *pg =  &help_data->data[i];
1660                 if (pg->pg < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1661                         struct cos_entry_help_data *data = &cos_data->
1662                                                             data[entry];
1663                         /* Fill BW entry */
1664                         data->cos_bw = DCBX_PG_BW_GET(ets->pg_bw_tbl, pg->pg);
1665                         data->strict = BNX2X_DCBX_STRICT_INVALID;
1666                         data->pri_join_mask = pg->pg_priority;
1667                         data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
1668                                                 data->pri_join_mask);
1669
1670                         entry++;
1671                 } else {
1672                         need_num_of_entries =  min_t(u8,
1673                                 (u8)pg->num_of_dif_pri,
1674                                 (u8)DCBX_COS_MAX_NUM_E3B0 -
1675                                                  help_data->num_of_pg + 1);
1676                         /*
1677                          * If there are still VOQ-s which have no associated PG,
1678                          * then associate these VOQ-s to PG15. These PG-s will
1679                          * be used for SP between priorities on PG15.
1680                          */
1681                         entry += bnx2x_dcbx_cee_fill_strict_pri(bp, cos_data,
1682                                 entry, need_num_of_entries, pg->pg_priority);
1683                 }
1684         }
1685
1686         /* the entry will represent the number of COSes used */
1687         cos_data->num_of_cos = entry;
1688 }
1689 static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp,
1690                                        struct pg_help_data *help_data,
1691                                        struct dcbx_ets_feature *ets,
1692                                        u32 *pg_pri_orginal_spread)
1693 {
1694         struct cos_help_data         cos_data;
1695         u8                    i                           = 0;
1696         u32                   pri_join_mask               = 0;
1697         u8                    num_of_dif_pri              = 0;
1698
1699         memset(&cos_data, 0, sizeof(cos_data));
1700
1701         /* Validate the pg value */
1702         for (i = 0; i < help_data->num_of_pg ; i++) {
1703                 if (DCBX_STRICT_PRIORITY != help_data->data[i].pg &&
1704                     DCBX_MAX_NUM_PG_BW_ENTRIES <= help_data->data[i].pg)
1705                         BNX2X_ERR("Invalid pg[%d] data %x\n", i,
1706                                   help_data->data[i].pg);
1707                 pri_join_mask   |=  help_data->data[i].pg_priority;
1708                 num_of_dif_pri  += help_data->data[i].num_of_dif_pri;
1709         }
1710
1711         /* defaults */
1712         cos_data.num_of_cos = 1;
1713         for (i = 0; i < ARRAY_SIZE(cos_data.data); i++) {
1714                 cos_data.data[i].pri_join_mask = 0;
1715                 cos_data.data[i].pausable = false;
1716                 cos_data.data[i].strict = BNX2X_DCBX_STRICT_INVALID;
1717                 cos_data.data[i].cos_bw = DCBX_INVALID_COS_BW;
1718         }
1719
1720         if (CHIP_IS_E3B0(bp))
1721                 bnx2x_dcbx_cee_fill_cos_params(bp, help_data, ets,
1722                                                &cos_data, pri_join_mask);
1723         else /* E2 + E3A0 */
1724                 bnx2x_dcbx_2cos_limit_cee_fill_cos_params(bp,
1725                                                           help_data, ets,
1726                                                           &cos_data,
1727                                                           pg_pri_orginal_spread,
1728                                                           pri_join_mask,
1729                                                           num_of_dif_pri);
1730
1731         for (i = 0; i < cos_data.num_of_cos ; i++) {
1732                 struct bnx2x_dcbx_cos_params *p =
1733                         &bp->dcbx_port_params.ets.cos_params[i];
1734
1735                 p->strict = cos_data.data[i].strict;
1736                 p->bw_tbl = cos_data.data[i].cos_bw;
1737                 p->pri_bitmask = cos_data.data[i].pri_join_mask;
1738                 p->pauseable = cos_data.data[i].pausable;
1739
1740                 /* sanity */
1741                 if (p->bw_tbl != DCBX_INVALID_COS_BW ||
1742                     p->strict != BNX2X_DCBX_STRICT_INVALID) {
1743                         if (p->pri_bitmask == 0)
1744                                 BNX2X_ERR("Invalid pri_bitmask for %d\n", i);
1745
1746                         if (CHIP_IS_E2(bp) || CHIP_IS_E3A0(bp)) {
1747
1748                                 if (p->pauseable &&
1749                                     DCBX_PFC_PRI_GET_NON_PAUSE(bp,
1750                                                 p->pri_bitmask) != 0)
1751                                         BNX2X_ERR("Inconsistent config for pausable COS %d\n",
1752                                                   i);
1753
1754                                 if (!p->pauseable &&
1755                                     DCBX_PFC_PRI_GET_PAUSE(bp,
1756                                                 p->pri_bitmask) != 0)
1757                                         BNX2X_ERR("Inconsistent config for nonpausable COS %d\n",
1758                                                   i);
1759                         }
1760                 }
1761
1762                 if (p->pauseable)
1763                         DP(BNX2X_MSG_DCB, "COS %d PAUSABLE prijoinmask 0x%x\n",
1764                                   i, cos_data.data[i].pri_join_mask);
1765                 else
1766                         DP(BNX2X_MSG_DCB,
1767                            "COS %d NONPAUSABLE prijoinmask 0x%x\n",
1768                            i, cos_data.data[i].pri_join_mask);
1769         }
1770
1771         bp->dcbx_port_params.ets.num_of_cos = cos_data.num_of_cos ;
1772 }
1773
1774 static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp,
1775                                 u32 *set_configuration_ets_pg,
1776                                 u32 *pri_pg_tbl)
1777 {
1778         int i;
1779
1780         for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) {
1781                 set_configuration_ets_pg[i] = DCBX_PRI_PG_GET(pri_pg_tbl, i);
1782
1783                 DP(BNX2X_MSG_DCB, "set_configuration_ets_pg[%d] = 0x%x\n",
1784                    i, set_configuration_ets_pg[i]);
1785         }
1786 }
1787
1788 static void bnx2x_dcbx_fw_struct(struct bnx2x *bp,
1789                                  struct bnx2x_func_tx_start_params *pfc_fw_cfg)
1790 {
1791         u16 pri_bit = 0;
1792         u8 cos = 0, pri = 0;
1793         struct priority_cos *tt2cos;
1794         u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1795
1796         memset(pfc_fw_cfg, 0, sizeof(*pfc_fw_cfg));
1797
1798         /* to disable DCB - the structure must be zeroed */
1799         if (bp->dcbx_error & DCBX_REMOTE_MIB_ERROR)
1800                 return;
1801
1802         /*shortcut*/
1803         tt2cos = pfc_fw_cfg->traffic_type_to_priority_cos;
1804
1805         /* Fw version should be incremented each update */
1806         pfc_fw_cfg->dcb_version = ++bp->dcb_version;
1807         pfc_fw_cfg->dcb_enabled = 1;
1808
1809         /* Fill priority parameters */
1810         for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) {
1811                 tt2cos[pri].priority = ttp[pri];
1812                 pri_bit = 1 << tt2cos[pri].priority;
1813
1814                 /* Fill COS parameters based on COS calculated to
1815                  * make it more general for future use */
1816                 for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++)
1817                         if (bp->dcbx_port_params.ets.cos_params[cos].
1818                                                 pri_bitmask & pri_bit)
1819                                         tt2cos[pri].cos = cos;
1820         }
1821
1822         /* we never want the FW to add a 0 vlan tag */
1823         pfc_fw_cfg->dont_add_pri_0_en = 1;
1824
1825         bnx2x_dcbx_print_cos_params(bp, pfc_fw_cfg);
1826 }
1827
1828 void bnx2x_dcbx_pmf_update(struct bnx2x *bp)
1829 {
1830         /* if we need to syncronize DCBX result from prev PMF
1831          * read it from shmem and update bp and netdev accordingly
1832          */
1833         if (SHMEM2_HAS(bp, drv_flags) &&
1834            GET_FLAGS(SHMEM2_RD(bp, drv_flags), 1 << DRV_FLAGS_DCB_CONFIGURED)) {
1835                 /* Read neg results if dcbx is in the FW */
1836                 if (bnx2x_dcbx_read_shmem_neg_results(bp))
1837                         return;
1838
1839                 bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat,
1840                                           bp->dcbx_error);
1841                 bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat,
1842                                          bp->dcbx_error);
1843 #ifdef BCM_DCBNL
1844                 /*
1845                  * Add new app tlvs to dcbnl
1846                  */
1847                 bnx2x_dcbnl_update_applist(bp, false);
1848                 /*
1849                  * Send a notification for the new negotiated parameters
1850                  */
1851                 dcbnl_cee_notify(bp->dev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0);
1852 #endif
1853                 /*
1854                  * reconfigure the netdevice with the results of the new
1855                  * dcbx negotiation.
1856                  */
1857                 bnx2x_dcbx_update_tc_mapping(bp);
1858
1859         }
1860 }
1861
1862 /* DCB netlink */
1863 #ifdef BCM_DCBNL
1864
1865 #define BNX2X_DCBX_CAPS         (DCB_CAP_DCBX_LLD_MANAGED | \
1866                                 DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_STATIC)
1867
1868 static inline bool bnx2x_dcbnl_set_valid(struct bnx2x *bp)
1869 {
1870         /* validate dcbnl call that may change HW state:
1871          * DCB is on and DCBX mode was SUCCESSFULLY set by the user.
1872          */
1873         return bp->dcb_state && bp->dcbx_mode_uset;
1874 }
1875
1876 static u8 bnx2x_dcbnl_get_state(struct net_device *netdev)
1877 {
1878         struct bnx2x *bp = netdev_priv(netdev);
1879         DP(BNX2X_MSG_DCB, "state = %d\n", bp->dcb_state);
1880         return bp->dcb_state;
1881 }
1882
1883 static u8 bnx2x_dcbnl_set_state(struct net_device *netdev, u8 state)
1884 {
1885         struct bnx2x *bp = netdev_priv(netdev);
1886         DP(BNX2X_MSG_DCB, "state = %s\n", state ? "on" : "off");
1887
1888         bnx2x_dcbx_set_state(bp, (state ? true : false), bp->dcbx_enabled);
1889         return 0;
1890 }
1891
1892 static void bnx2x_dcbnl_get_perm_hw_addr(struct net_device *netdev,
1893                                          u8 *perm_addr)
1894 {
1895         struct bnx2x *bp = netdev_priv(netdev);
1896         DP(BNX2X_MSG_DCB, "GET-PERM-ADDR\n");
1897
1898         /* first the HW mac address */
1899         memcpy(perm_addr, netdev->dev_addr, netdev->addr_len);
1900
1901 #ifdef BCM_CNIC
1902         /* second SAN address */
1903         memcpy(perm_addr+netdev->addr_len, bp->fip_mac, netdev->addr_len);
1904 #endif
1905 }
1906
1907 static void bnx2x_dcbnl_set_pg_tccfg_tx(struct net_device *netdev, int prio,
1908                                         u8 prio_type, u8 pgid, u8 bw_pct,
1909                                         u8 up_map)
1910 {
1911         struct bnx2x *bp = netdev_priv(netdev);
1912
1913         DP(BNX2X_MSG_DCB, "prio[%d] = %d\n", prio, pgid);
1914         if (!bnx2x_dcbnl_set_valid(bp) || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES)
1915                 return;
1916
1917         /**
1918          * bw_pct ingnored -    band-width percentage devision between user
1919          *                      priorities within the same group is not
1920          *                      standard and hence not supported
1921          *
1922          * prio_type igonred -  priority levels within the same group are not
1923          *                      standard and hence are not supported. According
1924          *                      to the standard pgid 15 is dedicated to strict
1925          *                      prioirty traffic (on the port level).
1926          *
1927          * up_map ignored
1928          */
1929
1930         bp->dcbx_config_params.admin_configuration_ets_pg[prio] = pgid;
1931         bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
1932 }
1933
1934 static void bnx2x_dcbnl_set_pg_bwgcfg_tx(struct net_device *netdev,
1935                                          int pgid, u8 bw_pct)
1936 {
1937         struct bnx2x *bp = netdev_priv(netdev);
1938         DP(BNX2X_MSG_DCB, "pgid[%d] = %d\n", pgid, bw_pct);
1939
1940         if (!bnx2x_dcbnl_set_valid(bp) || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES)
1941                 return;
1942
1943         bp->dcbx_config_params.admin_configuration_bw_precentage[pgid] = bw_pct;
1944         bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
1945 }
1946
1947 static void bnx2x_dcbnl_set_pg_tccfg_rx(struct net_device *netdev, int prio,
1948                                         u8 prio_type, u8 pgid, u8 bw_pct,
1949                                         u8 up_map)
1950 {
1951         struct bnx2x *bp = netdev_priv(netdev);
1952         DP(BNX2X_MSG_DCB, "Nothing to set; No RX support\n");
1953 }
1954
1955 static void bnx2x_dcbnl_set_pg_bwgcfg_rx(struct net_device *netdev,
1956                                          int pgid, u8 bw_pct)
1957 {
1958         struct bnx2x *bp = netdev_priv(netdev);
1959         DP(BNX2X_MSG_DCB, "Nothing to set; No RX support\n");
1960 }
1961
1962 static void bnx2x_dcbnl_get_pg_tccfg_tx(struct net_device *netdev, int prio,
1963                                         u8 *prio_type, u8 *pgid, u8 *bw_pct,
1964                                         u8 *up_map)
1965 {
1966         struct bnx2x *bp = netdev_priv(netdev);
1967         DP(BNX2X_MSG_DCB, "prio = %d\n", prio);
1968
1969         /**
1970          * bw_pct ingnored -    band-width percentage devision between user
1971          *                      priorities within the same group is not
1972          *                      standard and hence not supported
1973          *
1974          * prio_type igonred -  priority levels within the same group are not
1975          *                      standard and hence are not supported. According
1976          *                      to the standard pgid 15 is dedicated to strict
1977          *                      prioirty traffic (on the port level).
1978          *
1979          * up_map ignored
1980          */
1981         *up_map = *bw_pct = *prio_type = *pgid = 0;
1982
1983         if (!bp->dcb_state || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES)
1984                 return;
1985
1986         *pgid = DCBX_PRI_PG_GET(bp->dcbx_local_feat.ets.pri_pg_tbl, prio);
1987 }
1988
1989 static void bnx2x_dcbnl_get_pg_bwgcfg_tx(struct net_device *netdev,
1990                                          int pgid, u8 *bw_pct)
1991 {
1992         struct bnx2x *bp = netdev_priv(netdev);
1993         DP(BNX2X_MSG_DCB, "pgid = %d\n", pgid);
1994
1995         *bw_pct = 0;
1996
1997         if (!bp->dcb_state || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES)
1998                 return;
1999
2000         *bw_pct = DCBX_PG_BW_GET(bp->dcbx_local_feat.ets.pg_bw_tbl, pgid);
2001 }
2002
2003 static void bnx2x_dcbnl_get_pg_tccfg_rx(struct net_device *netdev, int prio,
2004                                         u8 *prio_type, u8 *pgid, u8 *bw_pct,
2005                                         u8 *up_map)
2006 {
2007         struct bnx2x *bp = netdev_priv(netdev);
2008         DP(BNX2X_MSG_DCB, "Nothing to get; No RX support\n");
2009
2010         *prio_type = *pgid = *bw_pct = *up_map = 0;
2011 }
2012
2013 static void bnx2x_dcbnl_get_pg_bwgcfg_rx(struct net_device *netdev,
2014                                          int pgid, u8 *bw_pct)
2015 {
2016         struct bnx2x *bp = netdev_priv(netdev);
2017         DP(BNX2X_MSG_DCB, "Nothing to get; No RX support\n");
2018
2019         *bw_pct = 0;
2020 }
2021
2022 static void bnx2x_dcbnl_set_pfc_cfg(struct net_device *netdev, int prio,
2023                                     u8 setting)
2024 {
2025         struct bnx2x *bp = netdev_priv(netdev);
2026         DP(BNX2X_MSG_DCB, "prio[%d] = %d\n", prio, setting);
2027
2028         if (!bnx2x_dcbnl_set_valid(bp) || prio >= MAX_PFC_PRIORITIES)
2029                 return;
2030
2031         bp->dcbx_config_params.admin_pfc_bitmap |= ((setting ? 1 : 0) << prio);
2032
2033         if (setting)
2034                 bp->dcbx_config_params.admin_pfc_tx_enable = 1;
2035 }
2036
2037 static void bnx2x_dcbnl_get_pfc_cfg(struct net_device *netdev, int prio,
2038                                     u8 *setting)
2039 {
2040         struct bnx2x *bp = netdev_priv(netdev);
2041         DP(BNX2X_MSG_DCB, "prio = %d\n", prio);
2042
2043         *setting = 0;
2044
2045         if (!bp->dcb_state || prio >= MAX_PFC_PRIORITIES)
2046                 return;
2047
2048         *setting = (bp->dcbx_local_feat.pfc.pri_en_bitmap >> prio) & 0x1;
2049 }
2050
2051 static u8 bnx2x_dcbnl_set_all(struct net_device *netdev)
2052 {
2053         struct bnx2x *bp = netdev_priv(netdev);
2054         int rc = 0;
2055
2056         DP(BNX2X_MSG_DCB, "SET-ALL\n");
2057
2058         if (!bnx2x_dcbnl_set_valid(bp))
2059                 return 1;
2060
2061         if (bp->recovery_state != BNX2X_RECOVERY_DONE) {
2062                 netdev_err(bp->dev,
2063                            "Handling parity error recovery. Try again later\n");
2064                 return 1;
2065         }
2066         if (netif_running(bp->dev)) {
2067                 bnx2x_nic_unload(bp, UNLOAD_NORMAL);
2068                 rc = bnx2x_nic_load(bp, LOAD_NORMAL);
2069         }
2070         DP(BNX2X_MSG_DCB, "set_dcbx_params done (%d)\n", rc);
2071         if (rc)
2072                 return 1;
2073
2074         return 0;
2075 }
2076
2077 static u8 bnx2x_dcbnl_get_cap(struct net_device *netdev, int capid, u8 *cap)
2078 {
2079         struct bnx2x *bp = netdev_priv(netdev);
2080         u8 rval = 0;
2081
2082         if (bp->dcb_state) {
2083                 switch (capid) {
2084                 case DCB_CAP_ATTR_PG:
2085                         *cap = true;
2086                         break;
2087                 case DCB_CAP_ATTR_PFC:
2088                         *cap = true;
2089                         break;
2090                 case DCB_CAP_ATTR_UP2TC:
2091                         *cap = false;
2092                         break;
2093                 case DCB_CAP_ATTR_PG_TCS:
2094                         *cap = 0x80;    /* 8 priorities for PGs */
2095                         break;
2096                 case DCB_CAP_ATTR_PFC_TCS:
2097                         *cap = 0x80;    /* 8 priorities for PFC */
2098                         break;
2099                 case DCB_CAP_ATTR_GSP:
2100                         *cap = true;
2101                         break;
2102                 case DCB_CAP_ATTR_BCN:
2103                         *cap = false;
2104                         break;
2105                 case DCB_CAP_ATTR_DCBX:
2106                         *cap = BNX2X_DCBX_CAPS;
2107                         break;
2108                 default:
2109                         BNX2X_ERR("Non valid capability ID\n");
2110                         rval = -EINVAL;
2111                         break;
2112                 }
2113         } else {
2114                 DP(BNX2X_MSG_DCB, "DCB disabled\n");
2115                 rval = -EINVAL;
2116         }
2117
2118         DP(BNX2X_MSG_DCB, "capid %d:%x\n", capid, *cap);
2119         return rval;
2120 }
2121
2122 static int bnx2x_dcbnl_get_numtcs(struct net_device *netdev, int tcid, u8 *num)
2123 {
2124         struct bnx2x *bp = netdev_priv(netdev);
2125         u8 rval = 0;
2126
2127         DP(BNX2X_MSG_DCB, "tcid %d\n", tcid);
2128
2129         if (bp->dcb_state) {
2130                 switch (tcid) {
2131                 case DCB_NUMTCS_ATTR_PG:
2132                         *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 :
2133                                                   DCBX_COS_MAX_NUM_E2;
2134                         break;
2135                 case DCB_NUMTCS_ATTR_PFC:
2136                         *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 :
2137                                                   DCBX_COS_MAX_NUM_E2;
2138                         break;
2139                 default:
2140                         BNX2X_ERR("Non valid TC-ID\n");
2141                         rval = -EINVAL;
2142                         break;
2143                 }
2144         } else {
2145                 DP(BNX2X_MSG_DCB, "DCB disabled\n");
2146                 rval = -EINVAL;
2147         }
2148
2149         return rval;
2150 }
2151
2152 static int bnx2x_dcbnl_set_numtcs(struct net_device *netdev, int tcid, u8 num)
2153 {
2154         struct bnx2x *bp = netdev_priv(netdev);
2155         DP(BNX2X_MSG_DCB, "num tcs = %d; Not supported\n", num);
2156         return -EINVAL;
2157 }
2158
2159 static u8  bnx2x_dcbnl_get_pfc_state(struct net_device *netdev)
2160 {
2161         struct bnx2x *bp = netdev_priv(netdev);
2162         DP(BNX2X_MSG_DCB, "state = %d\n", bp->dcbx_local_feat.pfc.enabled);
2163
2164         if (!bp->dcb_state)
2165                 return 0;
2166
2167         return bp->dcbx_local_feat.pfc.enabled;
2168 }
2169
2170 static void bnx2x_dcbnl_set_pfc_state(struct net_device *netdev, u8 state)
2171 {
2172         struct bnx2x *bp = netdev_priv(netdev);
2173         DP(BNX2X_MSG_DCB, "state = %s\n", state ? "on" : "off");
2174
2175         if (!bnx2x_dcbnl_set_valid(bp))
2176                 return;
2177
2178         bp->dcbx_config_params.admin_pfc_tx_enable =
2179         bp->dcbx_config_params.admin_pfc_enable = (state ? 1 : 0);
2180 }
2181
2182 static void bnx2x_admin_app_set_ent(
2183         struct bnx2x_admin_priority_app_table *app_ent,
2184         u8 idtype, u16 idval, u8 up)
2185 {
2186         app_ent->valid = 1;
2187
2188         switch (idtype) {
2189         case DCB_APP_IDTYPE_ETHTYPE:
2190                 app_ent->traffic_type = TRAFFIC_TYPE_ETH;
2191                 break;
2192         case DCB_APP_IDTYPE_PORTNUM:
2193                 app_ent->traffic_type = TRAFFIC_TYPE_PORT;
2194                 break;
2195         default:
2196                 break; /* never gets here */
2197         }
2198         app_ent->app_id = idval;
2199         app_ent->priority = up;
2200 }
2201
2202 static bool bnx2x_admin_app_is_equal(
2203         struct bnx2x_admin_priority_app_table *app_ent,
2204         u8 idtype, u16 idval)
2205 {
2206         if (!app_ent->valid)
2207                 return false;
2208
2209         switch (idtype) {
2210         case DCB_APP_IDTYPE_ETHTYPE:
2211                 if (app_ent->traffic_type != TRAFFIC_TYPE_ETH)
2212                         return false;
2213                 break;
2214         case DCB_APP_IDTYPE_PORTNUM:
2215                 if (app_ent->traffic_type != TRAFFIC_TYPE_PORT)
2216                         return false;
2217                 break;
2218         default:
2219                 return false;
2220         }
2221         if (app_ent->app_id != idval)
2222                 return false;
2223
2224         return true;
2225 }
2226
2227 static int bnx2x_set_admin_app_up(struct bnx2x *bp, u8 idtype, u16 idval, u8 up)
2228 {
2229         int i, ff;
2230
2231         /* iterate over the app entries looking for idtype and idval */
2232         for (i = 0, ff = -1; i < DCBX_CONFIG_MAX_APP_PROTOCOL; i++) {
2233                 struct bnx2x_admin_priority_app_table *app_ent =
2234                         &bp->dcbx_config_params.admin_priority_app_table[i];
2235                 if (bnx2x_admin_app_is_equal(app_ent, idtype, idval))
2236                         break;
2237
2238                 if (ff < 0 && !app_ent->valid)
2239                         ff = i;
2240         }
2241         if (i < DCBX_CONFIG_MAX_APP_PROTOCOL)
2242                 /* if found overwrite up */
2243                 bp->dcbx_config_params.
2244                         admin_priority_app_table[i].priority = up;
2245         else if (ff >= 0)
2246                 /* not found use first-free */
2247                 bnx2x_admin_app_set_ent(
2248                         &bp->dcbx_config_params.admin_priority_app_table[ff],
2249                         idtype, idval, up);
2250         else {
2251                 /* app table is full */
2252                 BNX2X_ERR("Application table is too large\n");
2253                 return -EBUSY;
2254         }
2255
2256         /* up configured, if not 0 make sure feature is enabled */
2257         if (up)
2258                 bp->dcbx_config_params.admin_application_priority_tx_enable = 1;
2259
2260         return 0;
2261 }
2262
2263 static u8 bnx2x_dcbnl_set_app_up(struct net_device *netdev, u8 idtype,
2264                                  u16 idval, u8 up)
2265 {
2266         struct bnx2x *bp = netdev_priv(netdev);
2267
2268         DP(BNX2X_MSG_DCB, "app_type %d, app_id %x, prio bitmap %d\n",
2269            idtype, idval, up);
2270
2271         if (!bnx2x_dcbnl_set_valid(bp)) {
2272                 DP(BNX2X_MSG_DCB, "dcbnl call not valid\n");
2273                 return -EINVAL;
2274         }
2275
2276         /* verify idtype */
2277         switch (idtype) {
2278         case DCB_APP_IDTYPE_ETHTYPE:
2279         case DCB_APP_IDTYPE_PORTNUM:
2280                 break;
2281         default:
2282                 DP(BNX2X_MSG_DCB, "Wrong ID type\n");
2283                 return -EINVAL;
2284         }
2285         return bnx2x_set_admin_app_up(bp, idtype, idval, up);
2286 }
2287
2288 static u8 bnx2x_dcbnl_get_dcbx(struct net_device *netdev)
2289 {
2290         struct bnx2x *bp = netdev_priv(netdev);
2291         u8 state;
2292
2293         state = DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_CEE;
2294
2295         if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF)
2296                 state |= DCB_CAP_DCBX_STATIC;
2297
2298         return state;
2299 }
2300
2301 static u8 bnx2x_dcbnl_set_dcbx(struct net_device *netdev, u8 state)
2302 {
2303         struct bnx2x *bp = netdev_priv(netdev);
2304         DP(BNX2X_MSG_DCB, "state = %02x\n", state);
2305
2306         /* set dcbx mode */
2307
2308         if ((state & BNX2X_DCBX_CAPS) != state) {
2309                 BNX2X_ERR("Requested DCBX mode %x is beyond advertised capabilities\n",
2310                           state);
2311                 return 1;
2312         }
2313
2314         if (bp->dcb_state != BNX2X_DCB_STATE_ON) {
2315                 BNX2X_ERR("DCB turned off, DCBX configuration is invalid\n");
2316                 return 1;
2317         }
2318
2319         if (state & DCB_CAP_DCBX_STATIC)
2320                 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_OFF;
2321         else
2322                 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_ON;
2323
2324         bp->dcbx_mode_uset = true;
2325         return 0;
2326 }
2327
2328 static u8 bnx2x_dcbnl_get_featcfg(struct net_device *netdev, int featid,
2329                                   u8 *flags)
2330 {
2331         struct bnx2x *bp = netdev_priv(netdev);
2332         u8 rval = 0;
2333
2334         DP(BNX2X_MSG_DCB, "featid %d\n", featid);
2335
2336         if (bp->dcb_state) {
2337                 *flags = 0;
2338                 switch (featid) {
2339                 case DCB_FEATCFG_ATTR_PG:
2340                         if (bp->dcbx_local_feat.ets.enabled)
2341                                 *flags |= DCB_FEATCFG_ENABLE;
2342                         if (bp->dcbx_error & DCBX_LOCAL_ETS_ERROR)
2343                                 *flags |= DCB_FEATCFG_ERROR;
2344                         break;
2345                 case DCB_FEATCFG_ATTR_PFC:
2346                         if (bp->dcbx_local_feat.pfc.enabled)
2347                                 *flags |= DCB_FEATCFG_ENABLE;
2348                         if (bp->dcbx_error & (DCBX_LOCAL_PFC_ERROR |
2349                             DCBX_LOCAL_PFC_MISMATCH))
2350                                 *flags |= DCB_FEATCFG_ERROR;
2351                         break;
2352                 case DCB_FEATCFG_ATTR_APP:
2353                         if (bp->dcbx_local_feat.app.enabled)
2354                                 *flags |= DCB_FEATCFG_ENABLE;
2355                         if (bp->dcbx_error & (DCBX_LOCAL_APP_ERROR |
2356                             DCBX_LOCAL_APP_MISMATCH))
2357                                 *flags |= DCB_FEATCFG_ERROR;
2358                         break;
2359                 default:
2360                         BNX2X_ERR("Non valid featrue-ID\n");
2361                         rval = -EINVAL;
2362                         break;
2363                 }
2364         } else {
2365                 DP(BNX2X_MSG_DCB, "DCB disabled\n");
2366                 rval = -EINVAL;
2367         }
2368
2369         return rval;
2370 }
2371
2372 static u8 bnx2x_dcbnl_set_featcfg(struct net_device *netdev, int featid,
2373                                   u8 flags)
2374 {
2375         struct bnx2x *bp = netdev_priv(netdev);
2376         u8 rval = 0;
2377
2378         DP(BNX2X_MSG_DCB, "featid = %d flags = %02x\n", featid, flags);
2379
2380         /* ignore the 'advertise' flag */
2381         if (bnx2x_dcbnl_set_valid(bp)) {
2382                 switch (featid) {
2383                 case DCB_FEATCFG_ATTR_PG:
2384                         bp->dcbx_config_params.admin_ets_enable =
2385                                 flags & DCB_FEATCFG_ENABLE ? 1 : 0;
2386                         bp->dcbx_config_params.admin_ets_willing =
2387                                 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2388                         break;
2389                 case DCB_FEATCFG_ATTR_PFC:
2390                         bp->dcbx_config_params.admin_pfc_enable =
2391                                 flags & DCB_FEATCFG_ENABLE ? 1 : 0;
2392                         bp->dcbx_config_params.admin_pfc_willing =
2393                                 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2394                         break;
2395                 case DCB_FEATCFG_ATTR_APP:
2396                         /* ignore enable, always enabled */
2397                         bp->dcbx_config_params.admin_app_priority_willing =
2398                                 flags & DCB_FEATCFG_WILLING ? 1 : 0;
2399                         break;
2400                 default:
2401                         BNX2X_ERR("Non valid featrue-ID\n");
2402                         rval = -EINVAL;
2403                         break;
2404                 }
2405         } else {
2406                 DP(BNX2X_MSG_DCB, "dcbnl call not valid\n");
2407                 rval = -EINVAL;
2408         }
2409
2410         return rval;
2411 }
2412
2413 static int bnx2x_peer_appinfo(struct net_device *netdev,
2414                               struct dcb_peer_app_info *info, u16* app_count)
2415 {
2416         int i;
2417         struct bnx2x *bp = netdev_priv(netdev);
2418
2419         DP(BNX2X_MSG_DCB, "APP-INFO\n");
2420
2421         info->willing = (bp->dcbx_remote_flags & DCBX_APP_REM_WILLING) ?: 0;
2422         info->error = (bp->dcbx_remote_flags & DCBX_APP_RX_ERROR) ?: 0;
2423         *app_count = 0;
2424
2425         for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++)
2426                 if (bp->dcbx_remote_feat.app.app_pri_tbl[i].appBitfield &
2427                     DCBX_APP_ENTRY_VALID)
2428                         (*app_count)++;
2429         return 0;
2430 }
2431
2432 static int bnx2x_peer_apptable(struct net_device *netdev,
2433                                struct dcb_app *table)
2434 {
2435         int i, j;
2436         struct bnx2x *bp = netdev_priv(netdev);
2437
2438         DP(BNX2X_MSG_DCB, "APP-TABLE\n");
2439
2440         for (i = 0, j = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
2441                 struct dcbx_app_priority_entry *ent =
2442                         &bp->dcbx_remote_feat.app.app_pri_tbl[i];
2443
2444                 if (ent->appBitfield & DCBX_APP_ENTRY_VALID) {
2445                         table[j].selector = bnx2x_dcbx_dcbnl_app_idtype(ent);
2446                         table[j].priority = bnx2x_dcbx_dcbnl_app_up(ent);
2447                         table[j++].protocol = ent->app_id;
2448                 }
2449         }
2450         return 0;
2451 }
2452
2453 static int bnx2x_cee_peer_getpg(struct net_device *netdev, struct cee_pg *pg)
2454 {
2455         int i;
2456         struct bnx2x *bp = netdev_priv(netdev);
2457
2458         pg->willing = (bp->dcbx_remote_flags & DCBX_ETS_REM_WILLING) ?: 0;
2459
2460         for (i = 0; i < CEE_DCBX_MAX_PGS; i++) {
2461                 pg->pg_bw[i] =
2462                         DCBX_PG_BW_GET(bp->dcbx_remote_feat.ets.pg_bw_tbl, i);
2463                 pg->prio_pg[i] =
2464                         DCBX_PRI_PG_GET(bp->dcbx_remote_feat.ets.pri_pg_tbl, i);
2465         }
2466         return 0;
2467 }
2468
2469 static int bnx2x_cee_peer_getpfc(struct net_device *netdev,
2470                                  struct cee_pfc *pfc)
2471 {
2472         struct bnx2x *bp = netdev_priv(netdev);
2473         pfc->tcs_supported = bp->dcbx_remote_feat.pfc.pfc_caps;
2474         pfc->pfc_en = bp->dcbx_remote_feat.pfc.pri_en_bitmap;
2475         return 0;
2476 }
2477
2478 const struct dcbnl_rtnl_ops bnx2x_dcbnl_ops = {
2479         .getstate               = bnx2x_dcbnl_get_state,
2480         .setstate               = bnx2x_dcbnl_set_state,
2481         .getpermhwaddr          = bnx2x_dcbnl_get_perm_hw_addr,
2482         .setpgtccfgtx           = bnx2x_dcbnl_set_pg_tccfg_tx,
2483         .setpgbwgcfgtx          = bnx2x_dcbnl_set_pg_bwgcfg_tx,
2484         .setpgtccfgrx           = bnx2x_dcbnl_set_pg_tccfg_rx,
2485         .setpgbwgcfgrx          = bnx2x_dcbnl_set_pg_bwgcfg_rx,
2486         .getpgtccfgtx           = bnx2x_dcbnl_get_pg_tccfg_tx,
2487         .getpgbwgcfgtx          = bnx2x_dcbnl_get_pg_bwgcfg_tx,
2488         .getpgtccfgrx           = bnx2x_dcbnl_get_pg_tccfg_rx,
2489         .getpgbwgcfgrx          = bnx2x_dcbnl_get_pg_bwgcfg_rx,
2490         .setpfccfg              = bnx2x_dcbnl_set_pfc_cfg,
2491         .getpfccfg              = bnx2x_dcbnl_get_pfc_cfg,
2492         .setall                 = bnx2x_dcbnl_set_all,
2493         .getcap                 = bnx2x_dcbnl_get_cap,
2494         .getnumtcs              = bnx2x_dcbnl_get_numtcs,
2495         .setnumtcs              = bnx2x_dcbnl_set_numtcs,
2496         .getpfcstate            = bnx2x_dcbnl_get_pfc_state,
2497         .setpfcstate            = bnx2x_dcbnl_set_pfc_state,
2498         .setapp                 = bnx2x_dcbnl_set_app_up,
2499         .getdcbx                = bnx2x_dcbnl_get_dcbx,
2500         .setdcbx                = bnx2x_dcbnl_set_dcbx,
2501         .getfeatcfg             = bnx2x_dcbnl_get_featcfg,
2502         .setfeatcfg             = bnx2x_dcbnl_set_featcfg,
2503         .peer_getappinfo        = bnx2x_peer_appinfo,
2504         .peer_getapptable       = bnx2x_peer_apptable,
2505         .cee_peer_getpg         = bnx2x_cee_peer_getpg,
2506         .cee_peer_getpfc        = bnx2x_cee_peer_getpfc,
2507 };
2508
2509 #endif /* BCM_DCBNL */