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/drivers/net/bnx2x/bnx2x_dcb.c

https://bitbucket.org/ndreys/linux-sunxi
C | 2244 lines | 1715 code | 314 blank | 215 comment | 285 complexity | bc38dcdc789678075fe6476f3b8bde4a MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0

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   1/* bnx2x_dcb.c: Broadcom Everest network driver.
   2 *
   3 * Copyright 2009-2011 Broadcom Corporation
   4 *
   5 * Unless you and Broadcom execute a separate written software license
   6 * agreement governing use of this software, this software is licensed to you
   7 * under the terms of the GNU General Public License version 2, available
   8 * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
   9 *
  10 * Notwithstanding the above, under no circumstances may you combine this
  11 * software in any way with any other Broadcom software provided under a
  12 * license other than the GPL, without Broadcom's express prior written
  13 * consent.
  14 *
  15 * Maintained by: Eilon Greenstein <eilong@broadcom.com>
  16 * Written by: Dmitry Kravkov
  17 *
  18 */
  19#include <linux/netdevice.h>
  20#include <linux/types.h>
  21#include <linux/errno.h>
  22#ifdef BCM_DCBNL
  23#include <linux/dcbnl.h>
  24#endif
  25
  26#include "bnx2x.h"
  27#include "bnx2x_cmn.h"
  28#include "bnx2x_dcb.h"
  29
  30
  31/* forward declarations of dcbx related functions */
  32static void bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp);
  33static void bnx2x_pfc_set_pfc(struct bnx2x *bp);
  34static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp);
  35static void bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp);
  36static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp,
  37					  u32 *set_configuration_ets_pg,
  38					  u32 *pri_pg_tbl);
  39static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp,
  40					    u32 *pg_pri_orginal_spread,
  41					    struct pg_help_data *help_data);
  42static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp,
  43				       struct pg_help_data *help_data,
  44				       struct dcbx_ets_feature *ets,
  45				       u32 *pg_pri_orginal_spread);
  46static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp,
  47				struct cos_help_data *cos_data,
  48				u32 *pg_pri_orginal_spread,
  49				struct dcbx_ets_feature *ets);
  50static void bnx2x_pfc_fw_struct_e2(struct bnx2x *bp);
  51
  52
  53static void bnx2x_pfc_set(struct bnx2x *bp)
  54{
  55	struct bnx2x_nig_brb_pfc_port_params pfc_params = {0};
  56	u32 pri_bit, val = 0;
  57	u8 pri;
  58
  59	/* Tx COS configuration */
  60	if (bp->dcbx_port_params.ets.cos_params[0].pauseable)
  61		pfc_params.rx_cos0_priority_mask =
  62			bp->dcbx_port_params.ets.cos_params[0].pri_bitmask;
  63	if (bp->dcbx_port_params.ets.cos_params[1].pauseable)
  64		pfc_params.rx_cos1_priority_mask =
  65			bp->dcbx_port_params.ets.cos_params[1].pri_bitmask;
  66
  67
  68	/**
  69	 * Rx COS configuration
  70	 * Changing PFC RX configuration .
  71	 * In RX COS0 will always be configured to lossy and COS1 to lossless
  72	 */
  73	for (pri = 0 ; pri < MAX_PFC_PRIORITIES ; pri++) {
  74		pri_bit = 1 << pri;
  75
  76		if (pri_bit & DCBX_PFC_PRI_PAUSE_MASK(bp))
  77			val |= 1 << (pri * 4);
  78	}
  79
  80	pfc_params.pkt_priority_to_cos = val;
  81
  82	/* RX COS0 */
  83	pfc_params.llfc_low_priority_classes = 0;
  84	/* RX COS1 */
  85	pfc_params.llfc_high_priority_classes = DCBX_PFC_PRI_PAUSE_MASK(bp);
  86
  87	/* BRB configuration */
  88	pfc_params.cos0_pauseable = false;
  89	pfc_params.cos1_pauseable = true;
  90
  91	bnx2x_acquire_phy_lock(bp);
  92	bp->link_params.feature_config_flags |= FEATURE_CONFIG_PFC_ENABLED;
  93	bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &pfc_params);
  94	bnx2x_release_phy_lock(bp);
  95}
  96
  97static void bnx2x_pfc_clear(struct bnx2x *bp)
  98{
  99	struct bnx2x_nig_brb_pfc_port_params nig_params = {0};
 100	nig_params.pause_enable = 1;
 101#ifdef BNX2X_SAFC
 102	if (bp->flags & SAFC_TX_FLAG) {
 103		u32 high = 0, low = 0;
 104		int i;
 105
 106		for (i = 0; i < BNX2X_MAX_PRIORITY; i++) {
 107			if (bp->pri_map[i] == 1)
 108				high |= (1 << i);
 109			if (bp->pri_map[i] == 0)
 110				low |= (1 << i);
 111		}
 112
 113		nig_params.llfc_low_priority_classes = high;
 114		nig_params.llfc_low_priority_classes = low;
 115
 116		nig_params.pause_enable = 0;
 117		nig_params.llfc_enable = 1;
 118		nig_params.llfc_out_en = 1;
 119	}
 120#endif /* BNX2X_SAFC */
 121	bnx2x_acquire_phy_lock(bp);
 122	bp->link_params.feature_config_flags &= ~FEATURE_CONFIG_PFC_ENABLED;
 123	bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &nig_params);
 124	bnx2x_release_phy_lock(bp);
 125}
 126
 127static void  bnx2x_dump_dcbx_drv_param(struct bnx2x *bp,
 128				       struct dcbx_features *features,
 129				       u32 error)
 130{
 131	u8 i = 0;
 132	DP(NETIF_MSG_LINK, "local_mib.error %x\n", error);
 133
 134	/* PG */
 135	DP(NETIF_MSG_LINK,
 136	   "local_mib.features.ets.enabled %x\n", features->ets.enabled);
 137	for (i = 0; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++)
 138		DP(NETIF_MSG_LINK,
 139		   "local_mib.features.ets.pg_bw_tbl[%d] %d\n", i,
 140		   DCBX_PG_BW_GET(features->ets.pg_bw_tbl, i));
 141	for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++)
 142		DP(NETIF_MSG_LINK,
 143		   "local_mib.features.ets.pri_pg_tbl[%d] %d\n", i,
 144		   DCBX_PRI_PG_GET(features->ets.pri_pg_tbl, i));
 145
 146	/* pfc */
 147	DP(NETIF_MSG_LINK, "dcbx_features.pfc.pri_en_bitmap %x\n",
 148					features->pfc.pri_en_bitmap);
 149	DP(NETIF_MSG_LINK, "dcbx_features.pfc.pfc_caps %x\n",
 150					features->pfc.pfc_caps);
 151	DP(NETIF_MSG_LINK, "dcbx_features.pfc.enabled %x\n",
 152					features->pfc.enabled);
 153
 154	DP(NETIF_MSG_LINK, "dcbx_features.app.default_pri %x\n",
 155					features->app.default_pri);
 156	DP(NETIF_MSG_LINK, "dcbx_features.app.tc_supported %x\n",
 157					features->app.tc_supported);
 158	DP(NETIF_MSG_LINK, "dcbx_features.app.enabled %x\n",
 159					features->app.enabled);
 160	for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
 161		DP(NETIF_MSG_LINK,
 162		   "dcbx_features.app.app_pri_tbl[%x].app_id %x\n",
 163		   i, features->app.app_pri_tbl[i].app_id);
 164		DP(NETIF_MSG_LINK,
 165		   "dcbx_features.app.app_pri_tbl[%x].pri_bitmap %x\n",
 166		   i, features->app.app_pri_tbl[i].pri_bitmap);
 167		DP(NETIF_MSG_LINK,
 168		   "dcbx_features.app.app_pri_tbl[%x].appBitfield %x\n",
 169		   i, features->app.app_pri_tbl[i].appBitfield);
 170	}
 171}
 172
 173static void bnx2x_dcbx_get_ap_priority(struct bnx2x *bp,
 174				       u8 pri_bitmap,
 175				       u8 llfc_traf_type)
 176{
 177	u32 pri = MAX_PFC_PRIORITIES;
 178	u32 index = MAX_PFC_PRIORITIES - 1;
 179	u32 pri_mask;
 180	u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
 181
 182	/* Choose the highest priority */
 183	while ((MAX_PFC_PRIORITIES == pri) && (0 != index)) {
 184		pri_mask = 1 << index;
 185		if (GET_FLAGS(pri_bitmap, pri_mask))
 186			pri = index ;
 187		index--;
 188	}
 189
 190	if (pri < MAX_PFC_PRIORITIES)
 191		ttp[llfc_traf_type] = max_t(u32, ttp[llfc_traf_type], pri);
 192}
 193
 194static void bnx2x_dcbx_get_ap_feature(struct bnx2x *bp,
 195				   struct dcbx_app_priority_feature *app,
 196				   u32 error) {
 197	u8 index;
 198	u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
 199
 200	if (GET_FLAGS(error, DCBX_LOCAL_APP_ERROR))
 201		DP(NETIF_MSG_LINK, "DCBX_LOCAL_APP_ERROR\n");
 202
 203	if (app->enabled && !GET_FLAGS(error, DCBX_LOCAL_APP_ERROR)) {
 204
 205		bp->dcbx_port_params.app.enabled = true;
 206
 207		for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++)
 208			ttp[index] = 0;
 209
 210		if (app->default_pri < MAX_PFC_PRIORITIES)
 211			ttp[LLFC_TRAFFIC_TYPE_NW] = app->default_pri;
 212
 213		for (index = 0 ; index < DCBX_MAX_APP_PROTOCOL; index++) {
 214			struct dcbx_app_priority_entry *entry =
 215							app->app_pri_tbl;
 216
 217			if (GET_FLAGS(entry[index].appBitfield,
 218				     DCBX_APP_SF_ETH_TYPE) &&
 219			   ETH_TYPE_FCOE == entry[index].app_id)
 220				bnx2x_dcbx_get_ap_priority(bp,
 221						entry[index].pri_bitmap,
 222						LLFC_TRAFFIC_TYPE_FCOE);
 223
 224			if (GET_FLAGS(entry[index].appBitfield,
 225				     DCBX_APP_SF_PORT) &&
 226			   TCP_PORT_ISCSI == entry[index].app_id)
 227				bnx2x_dcbx_get_ap_priority(bp,
 228						entry[index].pri_bitmap,
 229						LLFC_TRAFFIC_TYPE_ISCSI);
 230		}
 231	} else {
 232		DP(NETIF_MSG_LINK, "DCBX_LOCAL_APP_DISABLED\n");
 233		bp->dcbx_port_params.app.enabled = false;
 234		for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++)
 235			ttp[index] = INVALID_TRAFFIC_TYPE_PRIORITY;
 236	}
 237}
 238
 239static void bnx2x_dcbx_get_ets_feature(struct bnx2x *bp,
 240				       struct dcbx_ets_feature *ets,
 241				       u32 error) {
 242	int i = 0;
 243	u32 pg_pri_orginal_spread[DCBX_MAX_NUM_PG_BW_ENTRIES] = {0};
 244	struct pg_help_data pg_help_data;
 245	struct bnx2x_dcbx_cos_params *cos_params =
 246			bp->dcbx_port_params.ets.cos_params;
 247
 248	memset(&pg_help_data, 0, sizeof(struct pg_help_data));
 249
 250
 251	if (GET_FLAGS(error, DCBX_LOCAL_ETS_ERROR))
 252		DP(NETIF_MSG_LINK, "DCBX_LOCAL_ETS_ERROR\n");
 253
 254
 255	/* Clean up old settings of ets on COS */
 256	for (i = 0; i < E2_NUM_OF_COS ; i++) {
 257
 258		cos_params[i].pauseable = false;
 259		cos_params[i].strict = BNX2X_DCBX_COS_NOT_STRICT;
 260		cos_params[i].bw_tbl = DCBX_INVALID_COS_BW;
 261		cos_params[i].pri_bitmask = DCBX_PFC_PRI_GET_NON_PAUSE(bp, 0);
 262	}
 263
 264	if (bp->dcbx_port_params.app.enabled &&
 265	   !GET_FLAGS(error, DCBX_LOCAL_ETS_ERROR) &&
 266	   ets->enabled) {
 267		DP(NETIF_MSG_LINK, "DCBX_LOCAL_ETS_ENABLE\n");
 268		bp->dcbx_port_params.ets.enabled = true;
 269
 270		bnx2x_dcbx_get_ets_pri_pg_tbl(bp,
 271					      pg_pri_orginal_spread,
 272					      ets->pri_pg_tbl);
 273
 274		bnx2x_dcbx_get_num_pg_traf_type(bp,
 275						pg_pri_orginal_spread,
 276						&pg_help_data);
 277
 278		bnx2x_dcbx_fill_cos_params(bp, &pg_help_data,
 279					   ets, pg_pri_orginal_spread);
 280
 281	} else {
 282		DP(NETIF_MSG_LINK, "DCBX_LOCAL_ETS_DISABLED\n");
 283		bp->dcbx_port_params.ets.enabled = false;
 284		ets->pri_pg_tbl[0] = 0;
 285
 286		for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES ; i++)
 287			DCBX_PG_BW_SET(ets->pg_bw_tbl, i, 1);
 288	}
 289}
 290
 291static void  bnx2x_dcbx_get_pfc_feature(struct bnx2x *bp,
 292					struct dcbx_pfc_feature *pfc, u32 error)
 293{
 294
 295	if (GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR))
 296		DP(NETIF_MSG_LINK, "DCBX_LOCAL_PFC_ERROR\n");
 297
 298	if (bp->dcbx_port_params.app.enabled &&
 299	   !GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR) &&
 300	   pfc->enabled) {
 301		bp->dcbx_port_params.pfc.enabled = true;
 302		bp->dcbx_port_params.pfc.priority_non_pauseable_mask =
 303			~(pfc->pri_en_bitmap);
 304	} else {
 305		DP(NETIF_MSG_LINK, "DCBX_LOCAL_PFC_DISABLED\n");
 306		bp->dcbx_port_params.pfc.enabled = false;
 307		bp->dcbx_port_params.pfc.priority_non_pauseable_mask = 0;
 308	}
 309}
 310
 311static void bnx2x_get_dcbx_drv_param(struct bnx2x *bp,
 312				     struct dcbx_features *features,
 313				     u32 error)
 314{
 315	bnx2x_dcbx_get_ap_feature(bp, &features->app, error);
 316
 317	bnx2x_dcbx_get_pfc_feature(bp, &features->pfc, error);
 318
 319	bnx2x_dcbx_get_ets_feature(bp, &features->ets, error);
 320}
 321
 322#define DCBX_LOCAL_MIB_MAX_TRY_READ		(100)
 323static int bnx2x_dcbx_read_mib(struct bnx2x *bp,
 324			       u32 *base_mib_addr,
 325			       u32 offset,
 326			       int read_mib_type)
 327{
 328	int max_try_read = 0, i;
 329	u32 *buff, mib_size, prefix_seq_num, suffix_seq_num;
 330	struct lldp_remote_mib *remote_mib ;
 331	struct lldp_local_mib  *local_mib;
 332
 333
 334	switch (read_mib_type) {
 335	case DCBX_READ_LOCAL_MIB:
 336		mib_size = sizeof(struct lldp_local_mib);
 337		break;
 338	case DCBX_READ_REMOTE_MIB:
 339		mib_size = sizeof(struct lldp_remote_mib);
 340		break;
 341	default:
 342		return 1; /*error*/
 343	}
 344
 345	offset += BP_PORT(bp) * mib_size;
 346
 347	do {
 348		buff = base_mib_addr;
 349		for (i = 0; i < mib_size; i += 4, buff++)
 350			*buff = REG_RD(bp, offset + i);
 351
 352		max_try_read++;
 353
 354		switch (read_mib_type) {
 355		case DCBX_READ_LOCAL_MIB:
 356			local_mib = (struct lldp_local_mib *) base_mib_addr;
 357			prefix_seq_num = local_mib->prefix_seq_num;
 358			suffix_seq_num = local_mib->suffix_seq_num;
 359			break;
 360		case DCBX_READ_REMOTE_MIB:
 361			remote_mib = (struct lldp_remote_mib *) base_mib_addr;
 362			prefix_seq_num = remote_mib->prefix_seq_num;
 363			suffix_seq_num = remote_mib->suffix_seq_num;
 364			break;
 365		default:
 366			return 1; /*error*/
 367		}
 368	} while ((prefix_seq_num != suffix_seq_num) &&
 369	       (max_try_read < DCBX_LOCAL_MIB_MAX_TRY_READ));
 370
 371	if (max_try_read >= DCBX_LOCAL_MIB_MAX_TRY_READ) {
 372		BNX2X_ERR("MIB could not be read\n");
 373		return 1;
 374	}
 375
 376	return 0;
 377}
 378
 379static void bnx2x_pfc_set_pfc(struct bnx2x *bp)
 380{
 381	if (CHIP_IS_E2(bp)) {
 382		if (BP_PORT(bp)) {
 383			BNX2X_ERR("4 port mode is not supported");
 384			return;
 385		}
 386
 387		if (bp->dcbx_port_params.pfc.enabled)
 388
 389			/* 1. Fills up common PFC structures if required.*/
 390			/* 2. Configure NIG, MAC and BRB via the elink:
 391			 *    elink must first check if BMAC is not in reset
 392			 *    and only then configures the BMAC
 393			 *    Or, configure EMAC.
 394			 */
 395			bnx2x_pfc_set(bp);
 396
 397		else
 398			bnx2x_pfc_clear(bp);
 399	}
 400}
 401
 402static void bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp)
 403{
 404	DP(NETIF_MSG_LINK, "sending STOP TRAFFIC\n");
 405	bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_STOP_TRAFFIC,
 406		      0 /* connectionless */,
 407		      0 /* dataHi is zero */,
 408		      0 /* dataLo is zero */,
 409		      1 /* common */);
 410}
 411
 412static void bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp)
 413{
 414	bnx2x_pfc_fw_struct_e2(bp);
 415	DP(NETIF_MSG_LINK, "sending START TRAFFIC\n");
 416	bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_START_TRAFFIC,
 417		      0, /* connectionless */
 418		      U64_HI(bnx2x_sp_mapping(bp, pfc_config)),
 419		      U64_LO(bnx2x_sp_mapping(bp, pfc_config)),
 420		      1  /* commmon */);
 421}
 422
 423static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp)
 424{
 425	struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets);
 426	u8	status = 0;
 427
 428	bnx2x_ets_disabled(&bp->link_params);
 429
 430	if (!ets->enabled)
 431		return;
 432
 433	if ((ets->num_of_cos == 0) || (ets->num_of_cos > E2_NUM_OF_COS)) {
 434		BNX2X_ERR("illegal num of cos= %x", ets->num_of_cos);
 435		return;
 436	}
 437
 438	/* valid COS entries */
 439	if (ets->num_of_cos == 1)   /* no ETS */
 440		return;
 441
 442	/* sanity */
 443	if (((BNX2X_DCBX_COS_NOT_STRICT == ets->cos_params[0].strict) &&
 444	     (DCBX_INVALID_COS_BW == ets->cos_params[0].bw_tbl)) ||
 445	    ((BNX2X_DCBX_COS_NOT_STRICT == ets->cos_params[1].strict) &&
 446	     (DCBX_INVALID_COS_BW == ets->cos_params[1].bw_tbl))) {
 447		BNX2X_ERR("all COS should have at least bw_limit or strict"
 448			    "ets->cos_params[0].strict= %x"
 449			    "ets->cos_params[0].bw_tbl= %x"
 450			    "ets->cos_params[1].strict= %x"
 451			    "ets->cos_params[1].bw_tbl= %x",
 452			  ets->cos_params[0].strict,
 453			  ets->cos_params[0].bw_tbl,
 454			  ets->cos_params[1].strict,
 455			  ets->cos_params[1].bw_tbl);
 456		return;
 457	}
 458	/* If we join a group and there is bw_tbl and strict then bw rules */
 459	if ((DCBX_INVALID_COS_BW != ets->cos_params[0].bw_tbl) &&
 460	    (DCBX_INVALID_COS_BW != ets->cos_params[1].bw_tbl)) {
 461		u32 bw_tbl_0 = ets->cos_params[0].bw_tbl;
 462		u32 bw_tbl_1 = ets->cos_params[1].bw_tbl;
 463		/* Do not allow 0-100 configuration
 464		 * since PBF does not support it
 465		 * force 1-99 instead
 466		 */
 467		if (bw_tbl_0 == 0) {
 468			bw_tbl_0 = 1;
 469			bw_tbl_1 = 99;
 470		} else if (bw_tbl_1 == 0) {
 471			bw_tbl_1 = 1;
 472			bw_tbl_0 = 99;
 473		}
 474
 475		bnx2x_ets_bw_limit(&bp->link_params, bw_tbl_0, bw_tbl_1);
 476	} else {
 477		if (ets->cos_params[0].strict == BNX2X_DCBX_COS_HIGH_STRICT)
 478			status = bnx2x_ets_strict(&bp->link_params, 0);
 479		else if (ets->cos_params[1].strict
 480						== BNX2X_DCBX_COS_HIGH_STRICT)
 481			status = bnx2x_ets_strict(&bp->link_params, 1);
 482
 483		if (status)
 484			BNX2X_ERR("update_ets_params failed\n");
 485	}
 486}
 487
 488#ifdef BCM_DCBNL
 489static int bnx2x_dcbx_read_shmem_remote_mib(struct bnx2x *bp)
 490{
 491	struct lldp_remote_mib remote_mib = {0};
 492	u32 dcbx_remote_mib_offset = SHMEM2_RD(bp, dcbx_remote_mib_offset);
 493	int rc;
 494
 495	DP(NETIF_MSG_LINK, "dcbx_remote_mib_offset 0x%x\n",
 496	   dcbx_remote_mib_offset);
 497
 498	if (SHMEM_DCBX_REMOTE_MIB_NONE == dcbx_remote_mib_offset) {
 499		BNX2X_ERR("FW doesn't support dcbx_remote_mib_offset\n");
 500		return -EINVAL;
 501	}
 502
 503	rc = bnx2x_dcbx_read_mib(bp, (u32 *)&remote_mib, dcbx_remote_mib_offset,
 504				 DCBX_READ_REMOTE_MIB);
 505
 506	if (rc) {
 507		BNX2X_ERR("Faild to read remote mib from FW\n");
 508		return rc;
 509	}
 510
 511	/* save features and flags */
 512	bp->dcbx_remote_feat = remote_mib.features;
 513	bp->dcbx_remote_flags = remote_mib.flags;
 514	return 0;
 515}
 516#endif
 517
 518static int bnx2x_dcbx_read_shmem_neg_results(struct bnx2x *bp)
 519{
 520	struct lldp_local_mib local_mib = {0};
 521	u32 dcbx_neg_res_offset = SHMEM2_RD(bp, dcbx_neg_res_offset);
 522	int rc;
 523
 524	DP(NETIF_MSG_LINK, "dcbx_neg_res_offset 0x%x\n", dcbx_neg_res_offset);
 525
 526	if (SHMEM_DCBX_NEG_RES_NONE == dcbx_neg_res_offset) {
 527		BNX2X_ERR("FW doesn't support dcbx_neg_res_offset\n");
 528		return -EINVAL;
 529	}
 530	rc = bnx2x_dcbx_read_mib(bp, (u32 *)&local_mib, dcbx_neg_res_offset,
 531				 DCBX_READ_LOCAL_MIB);
 532
 533	if (rc) {
 534		BNX2X_ERR("Faild to read local mib from FW\n");
 535		return rc;
 536	}
 537
 538	/* save features and error */
 539	bp->dcbx_local_feat = local_mib.features;
 540	bp->dcbx_error = local_mib.error;
 541	return 0;
 542}
 543
 544
 545#ifdef BCM_DCBNL
 546static inline
 547u8 bnx2x_dcbx_dcbnl_app_up(struct dcbx_app_priority_entry *ent)
 548{
 549	u8 pri;
 550
 551	/* Choose the highest priority */
 552	for (pri = MAX_PFC_PRIORITIES - 1; pri > 0; pri--)
 553		if (ent->pri_bitmap & (1 << pri))
 554			break;
 555	return pri;
 556}
 557
 558static inline
 559u8 bnx2x_dcbx_dcbnl_app_idtype(struct dcbx_app_priority_entry *ent)
 560{
 561	return ((ent->appBitfield & DCBX_APP_ENTRY_SF_MASK) ==
 562		DCBX_APP_SF_PORT) ? DCB_APP_IDTYPE_PORTNUM :
 563		DCB_APP_IDTYPE_ETHTYPE;
 564}
 565
 566static inline
 567void bnx2x_dcbx_invalidate_local_apps(struct bnx2x *bp)
 568{
 569	int i;
 570	for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++)
 571		bp->dcbx_local_feat.app.app_pri_tbl[i].appBitfield &=
 572							~DCBX_APP_ENTRY_VALID;
 573}
 574
 575int bnx2x_dcbnl_update_applist(struct bnx2x *bp, bool delall)
 576{
 577	int i, err = 0;
 578
 579	for (i = 0; i < DCBX_MAX_APP_PROTOCOL && err == 0; i++) {
 580		struct dcbx_app_priority_entry *ent =
 581			&bp->dcbx_local_feat.app.app_pri_tbl[i];
 582
 583		if (ent->appBitfield & DCBX_APP_ENTRY_VALID) {
 584			u8 up = bnx2x_dcbx_dcbnl_app_up(ent);
 585
 586			/* avoid invalid user-priority */
 587			if (up) {
 588				struct dcb_app app;
 589				app.selector = bnx2x_dcbx_dcbnl_app_idtype(ent);
 590				app.protocol = ent->app_id;
 591				app.priority = delall ? 0 : up;
 592				err = dcb_setapp(bp->dev, &app);
 593			}
 594		}
 595	}
 596	return err;
 597}
 598#endif
 599
 600void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state)
 601{
 602	switch (state) {
 603	case BNX2X_DCBX_STATE_NEG_RECEIVED:
 604#ifdef BCM_CNIC
 605		if (bp->state != BNX2X_STATE_OPENING_WAIT4_LOAD) {
 606			struct cnic_ops *c_ops;
 607			struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
 608			bp->flags |= NO_ISCSI_OOO_FLAG | NO_ISCSI_FLAG;
 609			cp->drv_state |= CNIC_DRV_STATE_NO_ISCSI_OOO;
 610			cp->drv_state |= CNIC_DRV_STATE_NO_ISCSI;
 611
 612			rcu_read_lock();
 613			c_ops = rcu_dereference(bp->cnic_ops);
 614			if (c_ops) {
 615				bnx2x_cnic_notify(bp, CNIC_CTL_STOP_ISCSI_CMD);
 616				rcu_read_unlock();
 617				return;
 618			}
 619			rcu_read_unlock();
 620		}
 621
 622		/* fall through if no CNIC initialized  */
 623	case BNX2X_DCBX_STATE_ISCSI_STOPPED:
 624#endif
 625
 626		{
 627			DP(NETIF_MSG_LINK, "BNX2X_DCBX_STATE_NEG_RECEIVED\n");
 628#ifdef BCM_DCBNL
 629			/**
 630			 * Delete app tlvs from dcbnl before reading new
 631			 * negotiation results
 632			 */
 633			bnx2x_dcbnl_update_applist(bp, true);
 634
 635			/* Read rmeote mib if dcbx is in the FW */
 636			if (bnx2x_dcbx_read_shmem_remote_mib(bp))
 637				return;
 638#endif
 639			/* Read neg results if dcbx is in the FW */
 640			if (bnx2x_dcbx_read_shmem_neg_results(bp))
 641				return;
 642
 643			bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat,
 644						  bp->dcbx_error);
 645
 646			bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat,
 647						 bp->dcbx_error);
 648
 649			if (bp->state != BNX2X_STATE_OPENING_WAIT4_LOAD) {
 650#ifdef BCM_DCBNL
 651				/**
 652				 * Add new app tlvs to dcbnl
 653				 */
 654				bnx2x_dcbnl_update_applist(bp, false);
 655#endif
 656				bnx2x_dcbx_stop_hw_tx(bp);
 657				return;
 658			}
 659			/* fall through */
 660#ifdef BCM_DCBNL
 661			/**
 662			 * Invalidate the local app tlvs if they are not added
 663			 * to the dcbnl app list to avoid deleting them from
 664			 * the list later on
 665			 */
 666			bnx2x_dcbx_invalidate_local_apps(bp);
 667#endif
 668		}
 669	case BNX2X_DCBX_STATE_TX_PAUSED:
 670		DP(NETIF_MSG_LINK, "BNX2X_DCBX_STATE_TX_PAUSED\n");
 671		bnx2x_pfc_set_pfc(bp);
 672
 673		bnx2x_dcbx_update_ets_params(bp);
 674		if (bp->state != BNX2X_STATE_OPENING_WAIT4_LOAD) {
 675			bnx2x_dcbx_resume_hw_tx(bp);
 676			return;
 677		}
 678		/* fall through */
 679	case BNX2X_DCBX_STATE_TX_RELEASED:
 680		DP(NETIF_MSG_LINK, "BNX2X_DCBX_STATE_TX_RELEASED\n");
 681		if (bp->state != BNX2X_STATE_OPENING_WAIT4_LOAD)
 682			bnx2x_fw_command(bp, DRV_MSG_CODE_DCBX_PMF_DRV_OK, 0);
 683
 684		return;
 685	default:
 686		BNX2X_ERR("Unknown DCBX_STATE\n");
 687	}
 688}
 689
 690
 691#define LLDP_STATS_OFFSET(bp)		(BP_PORT(bp)*\
 692					sizeof(struct lldp_dcbx_stat))
 693
 694/* calculate struct offset in array according to chip information */
 695#define LLDP_PARAMS_OFFSET(bp)		(BP_PORT(bp)*sizeof(struct lldp_params))
 696
 697#define LLDP_ADMIN_MIB_OFFSET(bp)	(PORT_MAX*sizeof(struct lldp_params) + \
 698				      BP_PORT(bp)*sizeof(struct lldp_admin_mib))
 699
 700static void bnx2x_dcbx_lldp_updated_params(struct bnx2x *bp,
 701					   u32 dcbx_lldp_params_offset)
 702{
 703	struct lldp_params lldp_params = {0};
 704	u32 i = 0, *buff = NULL;
 705	u32 offset = dcbx_lldp_params_offset + LLDP_PARAMS_OFFSET(bp);
 706
 707	DP(NETIF_MSG_LINK, "lldp_offset 0x%x\n", offset);
 708
 709	if ((bp->lldp_config_params.overwrite_settings ==
 710				BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE)) {
 711		/* Read the data first */
 712		buff = (u32 *)&lldp_params;
 713		for (i = 0; i < sizeof(struct lldp_params); i += 4,  buff++)
 714			*buff = REG_RD(bp, (offset + i));
 715
 716		lldp_params.msg_tx_hold =
 717			(u8)bp->lldp_config_params.msg_tx_hold;
 718		lldp_params.msg_fast_tx_interval =
 719			(u8)bp->lldp_config_params.msg_fast_tx;
 720		lldp_params.tx_crd_max =
 721			(u8)bp->lldp_config_params.tx_credit_max;
 722		lldp_params.msg_tx_interval =
 723			(u8)bp->lldp_config_params.msg_tx_interval;
 724		lldp_params.tx_fast =
 725			(u8)bp->lldp_config_params.tx_fast;
 726
 727		/* Write the data.*/
 728		buff = (u32 *)&lldp_params;
 729		for (i = 0; i < sizeof(struct lldp_params); i += 4, buff++)
 730			REG_WR(bp, (offset + i) , *buff);
 731
 732
 733	} else if (BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE ==
 734				bp->lldp_config_params.overwrite_settings)
 735		bp->lldp_config_params.overwrite_settings =
 736				BNX2X_DCBX_OVERWRITE_SETTINGS_INVALID;
 737}
 738
 739static void bnx2x_dcbx_admin_mib_updated_params(struct bnx2x *bp,
 740				u32 dcbx_lldp_params_offset)
 741{
 742	struct lldp_admin_mib admin_mib;
 743	u32 i, other_traf_type = PREDEFINED_APP_IDX_MAX, traf_type = 0;
 744	u32 *buff;
 745	u32 offset = dcbx_lldp_params_offset + LLDP_ADMIN_MIB_OFFSET(bp);
 746
 747	/*shortcuts*/
 748	struct dcbx_features *af = &admin_mib.features;
 749	struct bnx2x_config_dcbx_params *dp = &bp->dcbx_config_params;
 750
 751	memset(&admin_mib, 0, sizeof(struct lldp_admin_mib));
 752	buff = (u32 *)&admin_mib;
 753	/* Read the data first */
 754	for (i = 0; i < sizeof(struct lldp_admin_mib); i += 4, buff++)
 755		*buff = REG_RD(bp, (offset + i));
 756
 757	if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON)
 758		SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED);
 759	else
 760		RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED);
 761
 762	if ((BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE ==
 763				dp->overwrite_settings)) {
 764		RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_CEE_VERSION_MASK);
 765		admin_mib.ver_cfg_flags |=
 766			(dp->admin_dcbx_version << DCBX_CEE_VERSION_SHIFT) &
 767			 DCBX_CEE_VERSION_MASK;
 768
 769		af->ets.enabled = (u8)dp->admin_ets_enable;
 770
 771		af->pfc.enabled = (u8)dp->admin_pfc_enable;
 772
 773		/* FOR IEEE dp->admin_tc_supported_tx_enable */
 774		if (dp->admin_ets_configuration_tx_enable)
 775			SET_FLAGS(admin_mib.ver_cfg_flags,
 776				  DCBX_ETS_CONFIG_TX_ENABLED);
 777		else
 778			RESET_FLAGS(admin_mib.ver_cfg_flags,
 779				    DCBX_ETS_CONFIG_TX_ENABLED);
 780		/* For IEEE admin_ets_recommendation_tx_enable */
 781		if (dp->admin_pfc_tx_enable)
 782			SET_FLAGS(admin_mib.ver_cfg_flags,
 783				  DCBX_PFC_CONFIG_TX_ENABLED);
 784		else
 785			RESET_FLAGS(admin_mib.ver_cfg_flags,
 786				  DCBX_PFC_CONFIG_TX_ENABLED);
 787
 788		if (dp->admin_application_priority_tx_enable)
 789			SET_FLAGS(admin_mib.ver_cfg_flags,
 790				  DCBX_APP_CONFIG_TX_ENABLED);
 791		else
 792			RESET_FLAGS(admin_mib.ver_cfg_flags,
 793				  DCBX_APP_CONFIG_TX_ENABLED);
 794
 795		if (dp->admin_ets_willing)
 796			SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING);
 797		else
 798			RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING);
 799		/* For IEEE admin_ets_reco_valid */
 800		if (dp->admin_pfc_willing)
 801			SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING);
 802		else
 803			RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING);
 804
 805		if (dp->admin_app_priority_willing)
 806			SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING);
 807		else
 808			RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING);
 809
 810		for (i = 0 ; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++) {
 811			DCBX_PG_BW_SET(af->ets.pg_bw_tbl, i,
 812				(u8)dp->admin_configuration_bw_precentage[i]);
 813
 814			DP(NETIF_MSG_LINK, "pg_bw_tbl[%d] = %02x\n",
 815			   i, DCBX_PG_BW_GET(af->ets.pg_bw_tbl, i));
 816		}
 817
 818		for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) {
 819			DCBX_PRI_PG_SET(af->ets.pri_pg_tbl, i,
 820					(u8)dp->admin_configuration_ets_pg[i]);
 821
 822			DP(NETIF_MSG_LINK, "pri_pg_tbl[%d] = %02x\n",
 823			   i, DCBX_PRI_PG_GET(af->ets.pri_pg_tbl, i));
 824		}
 825
 826		/*For IEEE admin_recommendation_bw_precentage
 827		 *For IEEE admin_recommendation_ets_pg */
 828		af->pfc.pri_en_bitmap = (u8)dp->admin_pfc_bitmap;
 829		for (i = 0; i < 4; i++) {
 830			if (dp->admin_priority_app_table[i].valid) {
 831				struct bnx2x_admin_priority_app_table *table =
 832					dp->admin_priority_app_table;
 833				if ((ETH_TYPE_FCOE == table[i].app_id) &&
 834				   (TRAFFIC_TYPE_ETH == table[i].traffic_type))
 835					traf_type = FCOE_APP_IDX;
 836				else if ((TCP_PORT_ISCSI == table[i].app_id) &&
 837				   (TRAFFIC_TYPE_PORT == table[i].traffic_type))
 838					traf_type = ISCSI_APP_IDX;
 839				else
 840					traf_type = other_traf_type++;
 841
 842				af->app.app_pri_tbl[traf_type].app_id =
 843					table[i].app_id;
 844
 845				af->app.app_pri_tbl[traf_type].pri_bitmap =
 846					(u8)(1 << table[i].priority);
 847
 848				af->app.app_pri_tbl[traf_type].appBitfield =
 849				    (DCBX_APP_ENTRY_VALID);
 850
 851				af->app.app_pri_tbl[traf_type].appBitfield |=
 852				   (TRAFFIC_TYPE_ETH == table[i].traffic_type) ?
 853					DCBX_APP_SF_ETH_TYPE : DCBX_APP_SF_PORT;
 854			}
 855		}
 856
 857		af->app.default_pri = (u8)dp->admin_default_priority;
 858
 859	} else if (BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE ==
 860						dp->overwrite_settings)
 861		dp->overwrite_settings = BNX2X_DCBX_OVERWRITE_SETTINGS_INVALID;
 862
 863	/* Write the data. */
 864	buff = (u32 *)&admin_mib;
 865	for (i = 0; i < sizeof(struct lldp_admin_mib); i += 4, buff++)
 866		REG_WR(bp, (offset + i), *buff);
 867}
 868
 869void bnx2x_dcbx_set_state(struct bnx2x *bp, bool dcb_on, u32 dcbx_enabled)
 870{
 871	if (CHIP_IS_E2(bp) && !CHIP_MODE_IS_4_PORT(bp)) {
 872		bp->dcb_state = dcb_on;
 873		bp->dcbx_enabled = dcbx_enabled;
 874	} else {
 875		bp->dcb_state = false;
 876		bp->dcbx_enabled = BNX2X_DCBX_ENABLED_INVALID;
 877	}
 878	DP(NETIF_MSG_LINK, "DCB state [%s:%s]\n",
 879	   dcb_on ? "ON" : "OFF",
 880	   dcbx_enabled == BNX2X_DCBX_ENABLED_OFF ? "user-mode" :
 881	   dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF ? "on-chip static" :
 882	   dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON ?
 883	   "on-chip with negotiation" : "invalid");
 884}
 885
 886void bnx2x_dcbx_init_params(struct bnx2x *bp)
 887{
 888	bp->dcbx_config_params.admin_dcbx_version = 0x0; /* 0 - CEE; 1 - IEEE */
 889	bp->dcbx_config_params.admin_ets_willing = 1;
 890	bp->dcbx_config_params.admin_pfc_willing = 1;
 891	bp->dcbx_config_params.overwrite_settings = 1;
 892	bp->dcbx_config_params.admin_ets_enable = 1;
 893	bp->dcbx_config_params.admin_pfc_enable = 1;
 894	bp->dcbx_config_params.admin_tc_supported_tx_enable = 1;
 895	bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
 896	bp->dcbx_config_params.admin_pfc_tx_enable = 1;
 897	bp->dcbx_config_params.admin_application_priority_tx_enable = 1;
 898	bp->dcbx_config_params.admin_ets_reco_valid = 1;
 899	bp->dcbx_config_params.admin_app_priority_willing = 1;
 900	bp->dcbx_config_params.admin_configuration_bw_precentage[0] = 00;
 901	bp->dcbx_config_params.admin_configuration_bw_precentage[1] = 50;
 902	bp->dcbx_config_params.admin_configuration_bw_precentage[2] = 50;
 903	bp->dcbx_config_params.admin_configuration_bw_precentage[3] = 0;
 904	bp->dcbx_config_params.admin_configuration_bw_precentage[4] = 0;
 905	bp->dcbx_config_params.admin_configuration_bw_precentage[5] = 0;
 906	bp->dcbx_config_params.admin_configuration_bw_precentage[6] = 0;
 907	bp->dcbx_config_params.admin_configuration_bw_precentage[7] = 0;
 908	bp->dcbx_config_params.admin_configuration_ets_pg[0] = 1;
 909	bp->dcbx_config_params.admin_configuration_ets_pg[1] = 0;
 910	bp->dcbx_config_params.admin_configuration_ets_pg[2] = 0;
 911	bp->dcbx_config_params.admin_configuration_ets_pg[3] = 2;
 912	bp->dcbx_config_params.admin_configuration_ets_pg[4] = 0;
 913	bp->dcbx_config_params.admin_configuration_ets_pg[5] = 0;
 914	bp->dcbx_config_params.admin_configuration_ets_pg[6] = 0;
 915	bp->dcbx_config_params.admin_configuration_ets_pg[7] = 0;
 916	bp->dcbx_config_params.admin_recommendation_bw_precentage[0] = 0;
 917	bp->dcbx_config_params.admin_recommendation_bw_precentage[1] = 1;
 918	bp->dcbx_config_params.admin_recommendation_bw_precentage[2] = 2;
 919	bp->dcbx_config_params.admin_recommendation_bw_precentage[3] = 0;
 920	bp->dcbx_config_params.admin_recommendation_bw_precentage[4] = 7;
 921	bp->dcbx_config_params.admin_recommendation_bw_precentage[5] = 5;
 922	bp->dcbx_config_params.admin_recommendation_bw_precentage[6] = 6;
 923	bp->dcbx_config_params.admin_recommendation_bw_precentage[7] = 7;
 924	bp->dcbx_config_params.admin_recommendation_ets_pg[0] = 0;
 925	bp->dcbx_config_params.admin_recommendation_ets_pg[1] = 1;
 926	bp->dcbx_config_params.admin_recommendation_ets_pg[2] = 2;
 927	bp->dcbx_config_params.admin_recommendation_ets_pg[3] = 3;
 928	bp->dcbx_config_params.admin_recommendation_ets_pg[4] = 4;
 929	bp->dcbx_config_params.admin_recommendation_ets_pg[5] = 5;
 930	bp->dcbx_config_params.admin_recommendation_ets_pg[6] = 6;
 931	bp->dcbx_config_params.admin_recommendation_ets_pg[7] = 7;
 932	bp->dcbx_config_params.admin_pfc_bitmap = 0x8; /* FCoE(3) enable */
 933	bp->dcbx_config_params.admin_priority_app_table[0].valid = 1;
 934	bp->dcbx_config_params.admin_priority_app_table[1].valid = 1;
 935	bp->dcbx_config_params.admin_priority_app_table[2].valid = 0;
 936	bp->dcbx_config_params.admin_priority_app_table[3].valid = 0;
 937	bp->dcbx_config_params.admin_priority_app_table[0].priority = 3;
 938	bp->dcbx_config_params.admin_priority_app_table[1].priority = 0;
 939	bp->dcbx_config_params.admin_priority_app_table[2].priority = 0;
 940	bp->dcbx_config_params.admin_priority_app_table[3].priority = 0;
 941	bp->dcbx_config_params.admin_priority_app_table[0].traffic_type = 0;
 942	bp->dcbx_config_params.admin_priority_app_table[1].traffic_type = 1;
 943	bp->dcbx_config_params.admin_priority_app_table[2].traffic_type = 0;
 944	bp->dcbx_config_params.admin_priority_app_table[3].traffic_type = 0;
 945	bp->dcbx_config_params.admin_priority_app_table[0].app_id = 0x8906;
 946	bp->dcbx_config_params.admin_priority_app_table[1].app_id = 3260;
 947	bp->dcbx_config_params.admin_priority_app_table[2].app_id = 0;
 948	bp->dcbx_config_params.admin_priority_app_table[3].app_id = 0;
 949	bp->dcbx_config_params.admin_default_priority =
 950		bp->dcbx_config_params.admin_priority_app_table[1].priority;
 951}
 952
 953void bnx2x_dcbx_init(struct bnx2x *bp)
 954{
 955	u32 dcbx_lldp_params_offset = SHMEM_LLDP_DCBX_PARAMS_NONE;
 956
 957	if (bp->dcbx_enabled <= 0)
 958		return;
 959
 960	/* validate:
 961	 * chip of good for dcbx version,
 962	 * dcb is wanted
 963	 * the function is pmf
 964	 * shmem2 contains DCBX support fields
 965	 */
 966	DP(NETIF_MSG_LINK, "dcb_state %d bp->port.pmf %d\n",
 967	   bp->dcb_state, bp->port.pmf);
 968
 969	if (bp->dcb_state ==  BNX2X_DCB_STATE_ON && bp->port.pmf &&
 970	    SHMEM2_HAS(bp, dcbx_lldp_params_offset)) {
 971		dcbx_lldp_params_offset =
 972			SHMEM2_RD(bp, dcbx_lldp_params_offset);
 973
 974		DP(NETIF_MSG_LINK, "dcbx_lldp_params_offset 0x%x\n",
 975		   dcbx_lldp_params_offset);
 976
 977		if (SHMEM_LLDP_DCBX_PARAMS_NONE != dcbx_lldp_params_offset) {
 978			bnx2x_dcbx_lldp_updated_params(bp,
 979						       dcbx_lldp_params_offset);
 980
 981			bnx2x_dcbx_admin_mib_updated_params(bp,
 982				dcbx_lldp_params_offset);
 983
 984			/* set default configuration BC has */
 985			bnx2x_dcbx_set_params(bp,
 986					      BNX2X_DCBX_STATE_NEG_RECEIVED);
 987
 988			bnx2x_fw_command(bp,
 989					 DRV_MSG_CODE_DCBX_ADMIN_PMF_MSG, 0);
 990		}
 991	}
 992}
 993
 994void bnx2x_dcb_init_intmem_pfc(struct bnx2x *bp)
 995{
 996	struct priority_cos pricos[MAX_PFC_TRAFFIC_TYPES];
 997	u32 i = 0, addr;
 998	memset(pricos, 0, sizeof(pricos));
 999	/* Default initialization */
1000	for (i = 0; i < MAX_PFC_TRAFFIC_TYPES; i++)
1001		pricos[i].priority = LLFC_TRAFFIC_TYPE_TO_PRIORITY_UNMAPPED;
1002
1003	/* Store per port struct to internal memory */
1004	addr = BAR_XSTRORM_INTMEM +
1005			XSTORM_CMNG_PER_PORT_VARS_OFFSET(BP_PORT(bp)) +
1006			offsetof(struct cmng_struct_per_port,
1007				 traffic_type_to_priority_cos);
1008	__storm_memset_struct(bp, addr, sizeof(pricos), (u32 *)pricos);
1009
1010
1011	/* LLFC disabled.*/
1012	REG_WR8(bp , BAR_XSTRORM_INTMEM +
1013		    XSTORM_CMNG_PER_PORT_VARS_OFFSET(BP_PORT(bp)) +
1014		    offsetof(struct cmng_struct_per_port, llfc_mode),
1015			LLFC_MODE_NONE);
1016
1017	/* DCBX disabled.*/
1018	REG_WR8(bp , BAR_XSTRORM_INTMEM +
1019		    XSTORM_CMNG_PER_PORT_VARS_OFFSET(BP_PORT(bp)) +
1020		    offsetof(struct cmng_struct_per_port, dcb_enabled),
1021			DCB_DISABLED);
1022}
1023
1024static void
1025bnx2x_dcbx_print_cos_params(struct bnx2x *bp,
1026			    struct flow_control_configuration *pfc_fw_cfg)
1027{
1028	u8 pri = 0;
1029	u8 cos = 0;
1030
1031	DP(NETIF_MSG_LINK,
1032	   "pfc_fw_cfg->dcb_version %x\n", pfc_fw_cfg->dcb_version);
1033	DP(NETIF_MSG_LINK,
1034	   "pdev->params.dcbx_port_params.pfc."
1035	   "priority_non_pauseable_mask %x\n",
1036	   bp->dcbx_port_params.pfc.priority_non_pauseable_mask);
1037
1038	for (cos = 0 ; cos < bp->dcbx_port_params.ets.num_of_cos ; cos++) {
1039		DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets."
1040		   "cos_params[%d].pri_bitmask %x\n", cos,
1041		   bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask);
1042
1043		DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets."
1044		   "cos_params[%d].bw_tbl %x\n", cos,
1045		   bp->dcbx_port_params.ets.cos_params[cos].bw_tbl);
1046
1047		DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets."
1048		   "cos_params[%d].strict %x\n", cos,
1049		   bp->dcbx_port_params.ets.cos_params[cos].strict);
1050
1051		DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets."
1052		   "cos_params[%d].pauseable %x\n", cos,
1053		   bp->dcbx_port_params.ets.cos_params[cos].pauseable);
1054	}
1055
1056	for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) {
1057		DP(NETIF_MSG_LINK,
1058		   "pfc_fw_cfg->traffic_type_to_priority_cos[%d]."
1059		   "priority %x\n", pri,
1060		   pfc_fw_cfg->traffic_type_to_priority_cos[pri].priority);
1061
1062		DP(NETIF_MSG_LINK,
1063		   "pfc_fw_cfg->traffic_type_to_priority_cos[%d].cos %x\n",
1064		   pri, pfc_fw_cfg->traffic_type_to_priority_cos[pri].cos);
1065	}
1066}
1067
1068/* fills help_data according to pg_info */
1069static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp,
1070					    u32 *pg_pri_orginal_spread,
1071					    struct pg_help_data *help_data)
1072{
1073	bool pg_found  = false;
1074	u32 i, traf_type, add_traf_type, add_pg;
1075	u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1076	struct pg_entry_help_data *data = help_data->data; /*shotcut*/
1077
1078	/* Set to invalid */
1079	for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++)
1080		data[i].pg = DCBX_ILLEGAL_PG;
1081
1082	for (add_traf_type = 0;
1083	     add_traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX; add_traf_type++) {
1084		pg_found = false;
1085		if (ttp[add_traf_type] < MAX_PFC_PRIORITIES) {
1086			add_pg = (u8)pg_pri_orginal_spread[ttp[add_traf_type]];
1087			for (traf_type = 0;
1088			     traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1089			     traf_type++) {
1090				if (data[traf_type].pg == add_pg) {
1091					if (!(data[traf_type].pg_priority &
1092					     (1 << ttp[add_traf_type])))
1093						data[traf_type].
1094							num_of_dif_pri++;
1095					data[traf_type].pg_priority |=
1096						(1 << ttp[add_traf_type]);
1097					pg_found = true;
1098					break;
1099				}
1100			}
1101			if (false == pg_found) {
1102				data[help_data->num_of_pg].pg = add_pg;
1103				data[help_data->num_of_pg].pg_priority =
1104						(1 << ttp[add_traf_type]);
1105				data[help_data->num_of_pg].num_of_dif_pri = 1;
1106				help_data->num_of_pg++;
1107			}
1108		}
1109		DP(NETIF_MSG_LINK,
1110		   "add_traf_type %d pg_found %s num_of_pg %d\n",
1111		   add_traf_type, (false == pg_found) ? "NO" : "YES",
1112		   help_data->num_of_pg);
1113	}
1114}
1115
1116static void bnx2x_dcbx_ets_disabled_entry_data(struct bnx2x *bp,
1117					       struct cos_help_data *cos_data,
1118					       u32 pri_join_mask)
1119{
1120	/* Only one priority than only one COS */
1121	cos_data->data[0].pausable =
1122		IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1123	cos_data->data[0].pri_join_mask = pri_join_mask;
1124	cos_data->data[0].cos_bw = 100;
1125	cos_data->num_of_cos = 1;
1126}
1127
1128static inline void bnx2x_dcbx_add_to_cos_bw(struct bnx2x *bp,
1129					    struct cos_entry_help_data *data,
1130					    u8 pg_bw)
1131{
1132	if (data->cos_bw == DCBX_INVALID_COS_BW)
1133		data->cos_bw = pg_bw;
1134	else
1135		data->cos_bw += pg_bw;
1136}
1137
1138static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp,
1139			struct cos_help_data *cos_data,
1140			u32 *pg_pri_orginal_spread,
1141			struct dcbx_ets_feature *ets)
1142{
1143	u32	pri_tested	= 0;
1144	u8	i		= 0;
1145	u8	entry		= 0;
1146	u8	pg_entry	= 0;
1147	u8	num_of_pri	= LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1148
1149	cos_data->data[0].pausable = true;
1150	cos_data->data[1].pausable = false;
1151	cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0;
1152
1153	for (i = 0 ; i < num_of_pri ; i++) {
1154		pri_tested = 1 << bp->dcbx_port_params.
1155					app.traffic_type_priority[i];
1156
1157		if (pri_tested & DCBX_PFC_PRI_NON_PAUSE_MASK(bp)) {
1158			cos_data->data[1].pri_join_mask |= pri_tested;
1159			entry = 1;
1160		} else {
1161			cos_data->data[0].pri_join_mask |= pri_tested;
1162			entry = 0;
1163		}
1164		pg_entry = (u8)pg_pri_orginal_spread[bp->dcbx_port_params.
1165						app.traffic_type_priority[i]];
1166		/* There can be only one strict pg */
1167		if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES)
1168			bnx2x_dcbx_add_to_cos_bw(bp, &cos_data->data[entry],
1169				DCBX_PG_BW_GET(ets->pg_bw_tbl, pg_entry));
1170		else
1171			/* If we join a group and one is strict
1172			 * than the bw rulls */
1173			cos_data->data[entry].strict =
1174						BNX2X_DCBX_COS_HIGH_STRICT;
1175	}
1176	if ((0 == cos_data->data[0].pri_join_mask) &&
1177	    (0 == cos_data->data[1].pri_join_mask))
1178		BNX2X_ERR("dcbx error: Both groups must have priorities\n");
1179}
1180
1181
1182#ifndef POWER_OF_2
1183#define POWER_OF_2(x)	((0 != x) && (0 == (x & (x-1))))
1184#endif
1185
1186static void bxn2x_dcbx_single_pg_to_cos_params(struct bnx2x *bp,
1187					      struct pg_help_data *pg_help_data,
1188					      struct cos_help_data *cos_data,
1189					      u32 pri_join_mask,
1190					      u8 num_of_dif_pri)
1191{
1192	u8 i = 0;
1193	u32 pri_tested = 0;
1194	u32 pri_mask_without_pri = 0;
1195	u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1196	/*debug*/
1197	if (num_of_dif_pri == 1) {
1198		bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data, pri_join_mask);
1199		return;
1200	}
1201	/* single priority group */
1202	if (pg_help_data->data[0].pg < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1203		/* If there are both pauseable and non-pauseable priorities,
1204		 * the pauseable priorities go to the first queue and
1205		 * the non-pauseable priorities go to the second queue.
1206		 */
1207		if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1208			/* Pauseable */
1209			cos_data->data[0].pausable = true;
1210			/* Non pauseable.*/
1211			cos_data->data[1].pausable = false;
1212
1213			if (2 == num_of_dif_pri) {
1214				cos_data->data[0].cos_bw = 50;
1215				cos_data->data[1].cos_bw = 50;
1216			}
1217
1218			if (3 == num_of_dif_pri) {
1219				if (POWER_OF_2(DCBX_PFC_PRI_GET_PAUSE(bp,
1220							pri_join_mask))) {
1221					cos_data->data[0].cos_bw = 33;
1222					cos_data->data[1].cos_bw = 67;
1223				} else {
1224					cos_data->data[0].cos_bw = 67;
1225					cos_data->data[1].cos_bw = 33;
1226				}
1227			}
1228
1229		} else if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask)) {
1230			/* If there are only pauseable priorities,
1231			 * then one/two priorities go to the first queue
1232			 * and one priority goes to the second queue.
1233			 */
1234			if (2 == num_of_dif_pri) {
1235				cos_data->data[0].cos_bw = 50;
1236				cos_data->data[1].cos_bw = 50;
1237			} else {
1238				cos_data->data[0].cos_bw = 67;
1239				cos_data->data[1].cos_bw = 33;
1240			}
1241			cos_data->data[1].pausable = true;
1242			cos_data->data[0].pausable = true;
1243			/* All priorities except FCOE */
1244			cos_data->data[0].pri_join_mask = (pri_join_mask &
1245				((u8)~(1 << ttp[LLFC_TRAFFIC_TYPE_FCOE])));
1246			/* Only FCOE priority.*/
1247			cos_data->data[1].pri_join_mask =
1248				(1 << ttp[LLFC_TRAFFIC_TYPE_FCOE]);
1249		} else
1250			/* If there are only non-pauseable priorities,
1251			 * they will all go to the same queue.
1252			 */
1253			bnx2x_dcbx_ets_disabled_entry_data(bp,
1254						cos_data, pri_join_mask);
1255	} else {
1256		/* priority group which is not BW limited (PG#15):*/
1257		if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1258			/* If there are both pauseable and non-pauseable
1259			 * priorities, the pauseable priorities go to the first
1260			 * queue and the non-pauseable priorities
1261			 * go to the second queue.
1262			 */
1263			if (DCBX_PFC_PRI_GET_PAUSE(bp, pri_join_mask) >
1264			    DCBX_PFC_PRI_GET_NON_PAUSE(bp, pri_join_mask)) {
1265				cos_data->data[0].strict =
1266					BNX2X_DCBX_COS_HIGH_STRICT;
1267				cos_data->data[1].strict =
1268					BNX2X_DCBX_COS_LOW_STRICT;
1269			} else {
1270				cos_data->data[0].strict =
1271					BNX2X_DCBX_COS_LOW_STRICT;
1272				cos_data->data[1].strict =
1273					BNX2X_DCBX_COS_HIGH_STRICT;
1274			}
1275			/* Pauseable */
1276			cos_data->data[0].pausable = true;
1277			/* Non pause-able.*/
1278			cos_data->data[1].pausable = false;
1279		} else {
1280			/* If there are only pauseable priorities or
1281			 * only non-pauseable,* the lower priorities go
1282			 * to the first queue and the higherpriorities go
1283			 * to the second queue.
1284			 */
1285			cos_data->data[0].pausable =
1286				cos_data->data[1].pausable =
1287				IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1288
1289			for (i = 0 ; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++) {
1290				pri_tested = 1 << bp->dcbx_port_params.
1291					app.traffic_type_priority[i];
1292				/* Remove priority tested */
1293				pri_mask_without_pri =
1294					(pri_join_mask & ((u8)(~pri_tested)));
1295				if (pri_mask_without_pri < pri_tested)
1296					break;
1297			}
1298
1299			if (i == LLFC_DRIVER_TRAFFIC_TYPE_MAX)
1300				BNX2X_ERR("Invalid value for pri_join_mask -"
1301					  " could not find a priority\n");
1302
1303			cos_data->data[0].pri_join_mask = pri_mask_without_pri;
1304			cos_data->data[1].pri_join_mask = pri_tested;
1305			/* Both queues are strict priority,
1306			 * and that with the highest priority
1307			 * gets the highest strict priority in the arbiter.
1308			 */
1309			cos_data->data[0].strict = BNX2X_DCBX_COS_LOW_STRICT;
1310			cos_data->data[1].strict = BNX2X_DCBX_COS_HIGH_STRICT;
1311		}
1312	}
1313}
1314
1315static void bnx2x_dcbx_two_pg_to_cos_params(
1316			    struct bnx2x		*bp,
1317			    struct  pg_help_data	*pg_help_data,
1318			    struct dcbx_ets_feature	*ets,
1319			    struct cos_help_data	*cos_data,
1320			    u32			*pg_pri_orginal_spread,
1321			    u32				pri_join_mask,
1322			    u8				num_of_dif_pri)
1323{
1324	u8 i = 0;
1325	u8 pg[E2_NUM_OF_COS] = {0};
1326
1327	/* If there are both pauseable and non-pauseable priorities,
1328	 * the pauseable priorities go to the first queue and
1329	 * the non-pauseable priorities go to the second queue.
1330	 */
1331	if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
1332		if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp,
1333					 pg_help_data->data[0].pg_priority) ||
1334		    IS_DCBX_PFC_PRI_MIX_PAUSE(bp,
1335					 pg_help_data->data[1].pg_priority)) {
1336			/* If one PG contains both pauseable and
1337			 * non-pauseable priorities then ETS is disabled.
1338			 */
1339			bnx2x_dcbx_separate_pauseable_from_non(bp, cos_data,
1340					pg_pri_orginal_spread, ets);
1341			bp->dcbx_port_params.ets.enabled = false;
1342			return;
1343		}
1344
1345		/* Pauseable */
1346		cos_data->data[0].pausable = true;
1347		/* Non pauseable. */
1348		cos_data->data[1].pausable = false;
1349		if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp,
1350				pg_help_data->data[0].pg_priority)) {
1351			/* 0 is pauseable */
1352			cos_data->data[0].pri_join_mask =
1353				pg_help_data->data[0].pg_priority;
1354			pg[0] = pg_help_data->data[0].pg;
1355			cos_data->data[1].pri_join_mask =
1356				pg_help_data->data[1].pg_priority;
1357			pg[1] = pg_help_data->data[1].pg;
1358		} else {/* 1 is pauseable */
1359			cos_data->data[0].pri_join_mask =
1360				pg_help_data->data[1].pg_priority;
1361			pg[0] = pg_help_data->data[1].pg;
1362			cos_data->data[1].pri_join_mask =
1363				pg_help_data->data[0].pg_priority;
1364			pg[1] = pg_help_data->data[0].pg;
1365		}
1366	} else {
1367		/* If there are only pauseable priorities or
1368		 * only non-pauseable, each PG goes to a queue.
1369		 */
1370		cos_data->data[0].pausable = cos_data->data[1].pausable =
1371			IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1372		cos_data->data[0].pri_join_mask =
1373			pg_help_data->data[0].pg_priority;
1374		pg[0] = pg_help_data->data[0].pg;
1375		cos_data->data[1].pri_join_mask =
1376			pg_help_data->data[1].pg_priority;
1377		pg[1] = pg_help_data->data[1].pg;
1378	}
1379
1380	/* There can be only one strict pg */
1381	for (i = 0 ; i < E2_NUM_OF_COS; i++) {
1382		if (pg[i] < DCBX_MAX_NUM_PG_BW_ENTRIES)
1383			cos_data->data[i].cos_bw =
1384				DCBX_PG_BW_GET(ets->pg_bw_tbl, pg[i]);
1385		else
1386			cos_data->data[i].strict = BNX2X_DCBX_COS_HIGH_STRICT;
1387	}
1388}
1389
1390static void bnx2x_dcbx_three_pg_to_cos_params(
1391			      struct bnx2x		*bp,
1392			      struct pg_help_data	*pg_help_data,
1393			      struct dcbx_ets_feature	*ets,
1394			      struct cos_help_data	*cos_data,
1395			      u32			*pg_pri_orginal_spread,
1396			      u32			pri_join_mask,
1397			      u8			num_of_dif_pri)
1398{
1399	u8 i = 0;
1400	u32 pri_tested = 0;
1401	u8 entry = 0;
1402	u8 pg_entry = 0;
1403	bool b_found_strict = false;
1404	u8 num_of_pri = LLFC_DRIVER_TRAFFIC_TYPE_MAX;
1405
1406	cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0;
1407	/* If there are both pauseable and non-pauseable priorities,
1408	 * the pauseable priorities go to the first queue and the
1409	 * non-pauseable priorities go to the second queue.
1410	 */
1411	if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask))
1412		bnx2x_dcbx_separate_pauseable_from_non(bp,
1413				cos_data, pg_pri_orginal_spread, ets);
1414	else {
1415		/* If two BW-limited PG-s were combined to one queue,
1416		 * the BW is their sum.
1417		 *
1418		 * If there are only pauseable priorities or only non-pauseable,
1419		 * and there are both BW-limited and non-BW-limited PG-s,
1420		 * the BW-limited PG/s go to one queue and the non-BW-limited
1421		 * PG/s go to the second queue.
1422		 *
1423		 * If there are only pauseable priorities or only non-pauseable
1424		 * and all are BW limited, then	two priorities go to the first
1425		 * queue and one priority goes to the second queue.
1426		 *
1427		 * We will join this two cases:
1428		 * if one is BW limited it will go to the secoend queue
1429		 * otherwise the last priority will get it
1430		 */
1431
1432		cos_data->data[0].pausable = cos_data->data[1].pausable =
1433			IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
1434
1435		for (i = 0 ; i < num_of_pri; i++) {
1436			pri_tested = 1 << bp->dcbx_port_params.
1437				app.traffic_type_priority[i];
1438			pg_entry = (u8)pg_pri_orginal_spread[bp->
1439				dcbx_port_params.app.traffic_type_priority[i]];
1440
1441			if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES) {
1442				entry = 0;
1443
1444				if (i == (num_of_pri-1) &&
1445				    false == b_found_strict)
1446					/* last entry will be handled separately
1447					 * If no priority is strict than last
1448					 * enty goes to last queue.*/
1449					entry = 1;
1450				cos_data->data[entry].pri_join_mask |=
1451								pri_tested;
1452				bnx2x_dcbx_add_to_cos_bw(bp,
1453					&cos_data->data[entry],
1454					DCBX_PG_BW_GET(ets->pg_bw_tbl,
1455						       pg_entry));
1456			} else {
1457				b_found_strict = true;
1458				cos_data->data[1].pri_join_mask |= pri_tested;
1459				/* If we join a group and one is strict
1460				 * than the bw rulls */
1461				cos_data->data[1].strict =
1462					BNX2X_DCBX_COS_HIGH_STRICT;
1463			}
1464		}
1465	}
1466}
1467
1468
1469static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp,
1470				       struct pg_help_data *help_data,
1471				       struct dcbx_ets_feature *ets,
1472				       u32 *pg_pri_orginal_spread)
1473{
1474	struct cos_help_data         cos_data ;
1475	u8                    i                           = 0;
1476	u32                   pri_join_mask               = 0;
1477	u8                    num_of_dif_pri              = 0;
1478
1479	memset(&cos_data, 0, sizeof(cos_data));
1480	/* Validate the pg value */
1481	for (i = 0; i < help_data->num_of_pg ; i++) {
1482		if (DCBX_STRICT_PRIORITY != help_data->data[i].pg &&
1483		    DCBX_MAX_NUM_PG_BW_ENTRIES <= help_data->data[i].pg)
1484			BNX2X_ERR("Invalid pg[%d] data %x\n", i,
1485				  help_data->data[i].pg);
1486		pri_join_mask   |=  help_data->data[i].pg_priority;
1487		num_of_dif_pri  += help_data->data[i].num_of_dif_pri;
1488	}
1489
1490	/* default settings */
1491	cos_data.num_of_cos = 2;
1492	for (i = 0; i < E2_NUM_OF_COS ; i++) {
1493		cos_data.data[i].pri_join_mask    = pri_join_mask;
1494		cos_data.data[i].pausable         = false;
1495		cos_data.data[i].strict           = BNX2X_DCBX_COS_NOT_STRICT;
1496		cos_data.data[i].cos_bw           = DCBX_INVALID_COS_BW;
1497	}
1498
1499	switch (help_data->num_of_pg) {
1500	case 1:
1501
1502		bxn2x_dcbx_single_pg_to_cos_params(
1503					       bp,
1504					       help_data,
1505					       &cos_data,
1506					       pri_join_mask,
1507					       num_of_dif_pri);
1508		break;
1509	case 2:
1510		bnx2x_dcbx_two_pg_to_cos_params(
1511					    bp,
1512					    help_data,
1513					    ets,
1514					    &cos_data,
1515					    pg_pri_orginal_spread,
1516					    pri_join_mask,
1517					    num_of_dif_pri);
1518		break;
1519
1520	case 3:
1521		bnx2x_dcbx_three_pg_to_cos_params(
1522					      bp,
1523					      help_data,
1524					      ets,
1525					      &cos_data,
1526					      pg_pri_orginal_spread,
1527					      pri_join_mask,
1528					      num_of_dif_pri);
1529
1530		break;
1531	default:
1532		BNX2X_ERR("Wrong pg_help_data.num_of_pg\n");
1533		bnx2x_dcbx_ets_disabled_entry_data(bp,
1534						   &cos_data, pri_join_mask);
1535	}
1536
1537	for (i = 0; i < cos_data.num_of_cos ; i++) {
1538		struct bnx2x_dcbx_cos_params *params =
1539			&bp->dcbx_port_params.ets.cos_params[i];
1540
1541		params->pauseable = cos_data.data[i].pausable;
1542		params->strict = cos_data.data[i].strict;
1543		params->bw_tbl = cos_data.data[i].cos_bw;
1544		if (params->pauseable) {
1545			params->pri_bitmask =
1546			DCBX_PFC_PRI_GET_PAUSE(bp,
1547					cos_data.data[i].pri_join_mask);
1548			DP(NETIF_MSG_LINK, "COS %d PAUSABLE prijoinmask 0x%x\n",
1549				  i, cos_data.data[i].pri_join_mask);
1550		} else {
1551			params->pri_bitmask =
1552			DCBX_PFC_PRI_GET_NON_PAUSE(bp,
1553					cos_data.data[i].pri_join_mask);
1554			DP(NETIF_MSG_LINK, "COS %d NONPAUSABLE prijoinmask "
1555					  "0x%x\n",
1556				  i, cos_data.data[i].pri_join_mask);
1557		}
1558	}
1559
1560	bp->dcbx_port_params.ets.num_of_cos = cos_data.num_of_cos ;
1561}
1562
1563static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp,
1564				u32 *set_configuration_ets_pg,
1565				u32 *pri_pg_tbl)
1566{
1567	int i;
1568
1569	for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) {
1570		set_configuration_ets_pg[i] = DCBX_PRI_PG_GET(pri_pg_tbl, i);
1571
1572		DP(NETIF_MSG_LINK, "set_configuration_ets_pg[%d] = 0x%x\n",
1573		   i, set_configuration_ets_pg[i]);
1574	}
1575}
1576
1577static void bnx2x_pfc_fw_struct_e2(struct bnx2x *bp)
1578{
1579	struct flow_control_configuration   *pfc_fw_cfg = NULL;
1580	u16 pri_bit = 0;
1581	u8 cos = 0, pri = 0;
1582	struct priority_cos *tt2cos;
1583	u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
1584
1585	pfc_fw_cfg = (struct flow_control_configuration *)
1586					bnx2x_sp(bp, pfc_config);
1587	memset(pfc_fw_cfg, 0, sizeof(struct flow_control_configuration));
1588
1589	/*shortcut*/
1590	tt2cos = pfc_fw_cfg->traffic_type_to_priority_cos;
1591
1592	/* Fw version should be incremented each update */
1593	pfc_fw_cfg->dcb_version = ++bp->dcb_version;
1594	pfc_fw_cfg->dcb_enabled = DCB_ENABLED;
1595
1596	/* Default initialization */
1597	for (pri = 0; pri < MAX_PFC_TRAFFIC_TYPES ; pri++) {
1598		tt2cos[pri].priority = LLFC_TRAFFIC_TYPE_TO_PRIORITY_UNMAPPED;
1599		tt2cos[pri].cos = 0;
1600	}
1601
1602	/* Fill priority parameters */
1603	for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) {
1604		tt2cos[pri].priority = ttp[pri];
1605		pri_bit = 1 << tt2cos[pri].priority;
1606
1607		/* Fill COS parameters based on COS calculated to
1608		 * make it more generally for future use */
1609		for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++)
1610			if (bp->dcbx_port_params.ets.cos_params[cos].
1611						pri_bitmask & pri_bit)
1612					tt2cos[pri].cos = cos;
1613	}
1614	bnx2x_dcbx_print_cos_params(bp,	pfc_fw_cfg);
1615}
1616/* DCB netlink */
1617#ifdef BCM_DCBNL
1618
1619#define BNX2X_DCBX_CAPS		(DCB_CAP_DCBX_LLD_MANAGED | \
1620				DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_STATIC)
1621
1622static inline bool bnx2x_dcbnl_set_vali

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