bnx2x_dcb.c revision 94f05b0f60de32e6efa19310bd142f1519e2abdb
1/* bnx2x_dcb.c: Broadcom Everest network driver. 2 * 3 * Copyright 2009-2011 Broadcom Corporation 4 * 5 * Unless you and Broadcom execute a separate written software license 6 * agreement governing use of this software, this software is licensed to you 7 * under the terms of the GNU General Public License version 2, available 8 * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL"). 9 * 10 * Notwithstanding the above, under no circumstances may you combine this 11 * software in any way with any other Broadcom software provided under a 12 * license other than the GPL, without Broadcom's express prior written 13 * consent. 14 * 15 * Maintained by: Eilon Greenstein <eilong@broadcom.com> 16 * Written by: Dmitry Kravkov 17 * 18 */ 19#include <linux/netdevice.h> 20#include <linux/types.h> 21#include <linux/errno.h> 22#include <linux/rtnetlink.h> 23#include <net/dcbnl.h> 24 25#include "bnx2x.h" 26#include "bnx2x_cmn.h" 27#include "bnx2x_dcb.h" 28 29/* forward declarations of dcbx related functions */ 30static int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp); 31static void bnx2x_pfc_set_pfc(struct bnx2x *bp); 32static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp); 33static int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp); 34static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp, 35 u32 *set_configuration_ets_pg, 36 u32 *pri_pg_tbl); 37static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp, 38 u32 *pg_pri_orginal_spread, 39 struct pg_help_data *help_data); 40static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp, 41 struct pg_help_data *help_data, 42 struct dcbx_ets_feature *ets, 43 u32 *pg_pri_orginal_spread); 44static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp, 45 struct cos_help_data *cos_data, 46 u32 *pg_pri_orginal_spread, 47 struct dcbx_ets_feature *ets); 48static void bnx2x_dcbx_fw_struct(struct bnx2x *bp, 49 struct bnx2x_func_tx_start_params*); 50 51/* helpers: read/write len bytes from addr into buff by REG_RD/REG_WR */ 52static void bnx2x_read_data(struct bnx2x *bp, u32 *buff, 53 u32 addr, u32 len) 54{ 55 int i; 56 for (i = 0; i < len; i += 4, buff++) 57 *buff = REG_RD(bp, addr + i); 58} 59 60static void bnx2x_write_data(struct bnx2x *bp, u32 *buff, 61 u32 addr, u32 len) 62{ 63 int i; 64 for (i = 0; i < len; i += 4, buff++) 65 REG_WR(bp, addr + i, *buff); 66} 67 68static void bnx2x_pfc_set(struct bnx2x *bp) 69{ 70 struct bnx2x_nig_brb_pfc_port_params pfc_params = {0}; 71 u32 pri_bit, val = 0; 72 int i; 73 74 pfc_params.num_of_rx_cos_priority_mask = 75 bp->dcbx_port_params.ets.num_of_cos; 76 77 /* Tx COS configuration */ 78 for (i = 0; i < bp->dcbx_port_params.ets.num_of_cos; i++) 79 /* 80 * We configure only the pauseable bits (non pauseable aren't 81 * configured at all) it's done to avoid false pauses from 82 * network 83 */ 84 pfc_params.rx_cos_priority_mask[i] = 85 bp->dcbx_port_params.ets.cos_params[i].pri_bitmask 86 & DCBX_PFC_PRI_PAUSE_MASK(bp); 87 88 /* 89 * Rx COS configuration 90 * Changing PFC RX configuration . 91 * In RX COS0 will always be configured to lossy and COS1 to lossless 92 */ 93 for (i = 0 ; i < MAX_PFC_PRIORITIES ; i++) { 94 pri_bit = 1 << i; 95 96 if (pri_bit & DCBX_PFC_PRI_PAUSE_MASK(bp)) 97 val |= 1 << (i * 4); 98 } 99 100 pfc_params.pkt_priority_to_cos = val; 101 102 /* RX COS0 */ 103 pfc_params.llfc_low_priority_classes = 0; 104 /* RX COS1 */ 105 pfc_params.llfc_high_priority_classes = DCBX_PFC_PRI_PAUSE_MASK(bp); 106 107 /* BRB configuration */ 108 pfc_params.cos0_pauseable = false; 109 pfc_params.cos1_pauseable = true; 110 111 bnx2x_acquire_phy_lock(bp); 112 bp->link_params.feature_config_flags |= FEATURE_CONFIG_PFC_ENABLED; 113 bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &pfc_params); 114 bnx2x_release_phy_lock(bp); 115} 116 117static void bnx2x_pfc_clear(struct bnx2x *bp) 118{ 119 struct bnx2x_nig_brb_pfc_port_params nig_params = {0}; 120 nig_params.pause_enable = 1; 121#ifdef BNX2X_SAFC 122 if (bp->flags & SAFC_TX_FLAG) { 123 u32 high = 0, low = 0; 124 int i; 125 126 for (i = 0; i < BNX2X_MAX_PRIORITY; i++) { 127 if (bp->pri_map[i] == 1) 128 high |= (1 << i); 129 if (bp->pri_map[i] == 0) 130 low |= (1 << i); 131 } 132 133 nig_params.llfc_low_priority_classes = high; 134 nig_params.llfc_low_priority_classes = low; 135 136 nig_params.pause_enable = 0; 137 nig_params.llfc_enable = 1; 138 nig_params.llfc_out_en = 1; 139 } 140#endif /* BNX2X_SAFC */ 141 bnx2x_acquire_phy_lock(bp); 142 bp->link_params.feature_config_flags &= ~FEATURE_CONFIG_PFC_ENABLED; 143 bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &nig_params); 144 bnx2x_release_phy_lock(bp); 145} 146 147static void bnx2x_dump_dcbx_drv_param(struct bnx2x *bp, 148 struct dcbx_features *features, 149 u32 error) 150{ 151 u8 i = 0; 152 DP(NETIF_MSG_LINK, "local_mib.error %x\n", error); 153 154 /* PG */ 155 DP(NETIF_MSG_LINK, 156 "local_mib.features.ets.enabled %x\n", features->ets.enabled); 157 for (i = 0; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++) 158 DP(NETIF_MSG_LINK, 159 "local_mib.features.ets.pg_bw_tbl[%d] %d\n", i, 160 DCBX_PG_BW_GET(features->ets.pg_bw_tbl, i)); 161 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) 162 DP(NETIF_MSG_LINK, 163 "local_mib.features.ets.pri_pg_tbl[%d] %d\n", i, 164 DCBX_PRI_PG_GET(features->ets.pri_pg_tbl, i)); 165 166 /* pfc */ 167 DP(NETIF_MSG_LINK, "dcbx_features.pfc.pri_en_bitmap %x\n", 168 features->pfc.pri_en_bitmap); 169 DP(NETIF_MSG_LINK, "dcbx_features.pfc.pfc_caps %x\n", 170 features->pfc.pfc_caps); 171 DP(NETIF_MSG_LINK, "dcbx_features.pfc.enabled %x\n", 172 features->pfc.enabled); 173 174 DP(NETIF_MSG_LINK, "dcbx_features.app.default_pri %x\n", 175 features->app.default_pri); 176 DP(NETIF_MSG_LINK, "dcbx_features.app.tc_supported %x\n", 177 features->app.tc_supported); 178 DP(NETIF_MSG_LINK, "dcbx_features.app.enabled %x\n", 179 features->app.enabled); 180 for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) { 181 DP(NETIF_MSG_LINK, 182 "dcbx_features.app.app_pri_tbl[%x].app_id %x\n", 183 i, features->app.app_pri_tbl[i].app_id); 184 DP(NETIF_MSG_LINK, 185 "dcbx_features.app.app_pri_tbl[%x].pri_bitmap %x\n", 186 i, features->app.app_pri_tbl[i].pri_bitmap); 187 DP(NETIF_MSG_LINK, 188 "dcbx_features.app.app_pri_tbl[%x].appBitfield %x\n", 189 i, features->app.app_pri_tbl[i].appBitfield); 190 } 191} 192 193static void bnx2x_dcbx_get_ap_priority(struct bnx2x *bp, 194 u8 pri_bitmap, 195 u8 llfc_traf_type) 196{ 197 u32 pri = MAX_PFC_PRIORITIES; 198 u32 index = MAX_PFC_PRIORITIES - 1; 199 u32 pri_mask; 200 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority; 201 202 /* Choose the highest priority */ 203 while ((MAX_PFC_PRIORITIES == pri) && (0 != index)) { 204 pri_mask = 1 << index; 205 if (GET_FLAGS(pri_bitmap, pri_mask)) 206 pri = index ; 207 index--; 208 } 209 210 if (pri < MAX_PFC_PRIORITIES) 211 ttp[llfc_traf_type] = max_t(u32, ttp[llfc_traf_type], pri); 212} 213 214static void bnx2x_dcbx_get_ap_feature(struct bnx2x *bp, 215 struct dcbx_app_priority_feature *app, 216 u32 error) { 217 u8 index; 218 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority; 219 220 if (GET_FLAGS(error, DCBX_LOCAL_APP_ERROR)) 221 DP(NETIF_MSG_LINK, "DCBX_LOCAL_APP_ERROR\n"); 222 223 if (GET_FLAGS(error, DCBX_LOCAL_APP_MISMATCH)) 224 DP(NETIF_MSG_LINK, "DCBX_LOCAL_APP_MISMATCH\n"); 225 226 if (app->enabled && 227 !GET_FLAGS(error, DCBX_LOCAL_APP_ERROR | DCBX_LOCAL_APP_MISMATCH)) { 228 229 bp->dcbx_port_params.app.enabled = true; 230 231 for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++) 232 ttp[index] = 0; 233 234 if (app->default_pri < MAX_PFC_PRIORITIES) 235 ttp[LLFC_TRAFFIC_TYPE_NW] = app->default_pri; 236 237 for (index = 0 ; index < DCBX_MAX_APP_PROTOCOL; index++) { 238 struct dcbx_app_priority_entry *entry = 239 app->app_pri_tbl; 240 241 if (GET_FLAGS(entry[index].appBitfield, 242 DCBX_APP_SF_ETH_TYPE) && 243 ETH_TYPE_FCOE == entry[index].app_id) 244 bnx2x_dcbx_get_ap_priority(bp, 245 entry[index].pri_bitmap, 246 LLFC_TRAFFIC_TYPE_FCOE); 247 248 if (GET_FLAGS(entry[index].appBitfield, 249 DCBX_APP_SF_PORT) && 250 TCP_PORT_ISCSI == entry[index].app_id) 251 bnx2x_dcbx_get_ap_priority(bp, 252 entry[index].pri_bitmap, 253 LLFC_TRAFFIC_TYPE_ISCSI); 254 } 255 } else { 256 DP(NETIF_MSG_LINK, "DCBX_LOCAL_APP_DISABLED\n"); 257 bp->dcbx_port_params.app.enabled = false; 258 for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++) 259 ttp[index] = INVALID_TRAFFIC_TYPE_PRIORITY; 260 } 261} 262 263static void bnx2x_dcbx_get_ets_feature(struct bnx2x *bp, 264 struct dcbx_ets_feature *ets, 265 u32 error) { 266 int i = 0; 267 u32 pg_pri_orginal_spread[DCBX_MAX_NUM_PG_BW_ENTRIES] = {0}; 268 struct pg_help_data pg_help_data; 269 struct bnx2x_dcbx_cos_params *cos_params = 270 bp->dcbx_port_params.ets.cos_params; 271 272 memset(&pg_help_data, 0, sizeof(struct pg_help_data)); 273 274 275 if (GET_FLAGS(error, DCBX_LOCAL_ETS_ERROR)) 276 DP(NETIF_MSG_LINK, "DCBX_LOCAL_ETS_ERROR\n"); 277 278 279 /* Clean up old settings of ets on COS */ 280 for (i = 0; i < ARRAY_SIZE(bp->dcbx_port_params.ets.cos_params) ; i++) { 281 cos_params[i].pauseable = false; 282 cos_params[i].strict = BNX2X_DCBX_STRICT_INVALID; 283 cos_params[i].bw_tbl = DCBX_INVALID_COS_BW; 284 cos_params[i].pri_bitmask = 0; 285 } 286 287 if (bp->dcbx_port_params.app.enabled && 288 !GET_FLAGS(error, DCBX_LOCAL_ETS_ERROR) && 289 ets->enabled) { 290 DP(NETIF_MSG_LINK, "DCBX_LOCAL_ETS_ENABLE\n"); 291 bp->dcbx_port_params.ets.enabled = true; 292 293 bnx2x_dcbx_get_ets_pri_pg_tbl(bp, 294 pg_pri_orginal_spread, 295 ets->pri_pg_tbl); 296 297 bnx2x_dcbx_get_num_pg_traf_type(bp, 298 pg_pri_orginal_spread, 299 &pg_help_data); 300 301 bnx2x_dcbx_fill_cos_params(bp, &pg_help_data, 302 ets, pg_pri_orginal_spread); 303 304 } else { 305 DP(NETIF_MSG_LINK, "DCBX_LOCAL_ETS_DISABLED\n"); 306 bp->dcbx_port_params.ets.enabled = false; 307 ets->pri_pg_tbl[0] = 0; 308 309 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES ; i++) 310 DCBX_PG_BW_SET(ets->pg_bw_tbl, i, 1); 311 } 312} 313 314static void bnx2x_dcbx_get_pfc_feature(struct bnx2x *bp, 315 struct dcbx_pfc_feature *pfc, u32 error) 316{ 317 318 if (GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR)) 319 DP(NETIF_MSG_LINK, "DCBX_LOCAL_PFC_ERROR\n"); 320 321 if (bp->dcbx_port_params.app.enabled && 322 !GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR | DCBX_LOCAL_PFC_MISMATCH) && 323 pfc->enabled) { 324 bp->dcbx_port_params.pfc.enabled = true; 325 bp->dcbx_port_params.pfc.priority_non_pauseable_mask = 326 ~(pfc->pri_en_bitmap); 327 } else { 328 DP(NETIF_MSG_LINK, "DCBX_LOCAL_PFC_DISABLED\n"); 329 bp->dcbx_port_params.pfc.enabled = false; 330 bp->dcbx_port_params.pfc.priority_non_pauseable_mask = 0; 331 } 332} 333 334/* maps unmapped priorities to to the same COS as L2 */ 335static void bnx2x_dcbx_map_nw(struct bnx2x *bp) 336{ 337 int i; 338 u32 unmapped = (1 << MAX_PFC_PRIORITIES) - 1; /* all ones */ 339 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority; 340 u32 nw_prio = 1 << ttp[LLFC_TRAFFIC_TYPE_NW]; 341 struct bnx2x_dcbx_cos_params *cos_params = 342 bp->dcbx_port_params.ets.cos_params; 343 344 /* get unmapped priorities by clearing mapped bits */ 345 for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++) 346 unmapped &= ~(1 << ttp[i]); 347 348 /* find cos for nw prio and extend it with unmapped */ 349 for (i = 0; i < ARRAY_SIZE(bp->dcbx_port_params.ets.cos_params); i++) { 350 if (cos_params[i].pri_bitmask & nw_prio) { 351 /* extend the bitmask with unmapped */ 352 DP(NETIF_MSG_LINK, 353 "cos %d extended with 0x%08x\n", i, unmapped); 354 cos_params[i].pri_bitmask |= unmapped; 355 break; 356 } 357 } 358} 359 360static void bnx2x_get_dcbx_drv_param(struct bnx2x *bp, 361 struct dcbx_features *features, 362 u32 error) 363{ 364 bnx2x_dcbx_get_ap_feature(bp, &features->app, error); 365 366 bnx2x_dcbx_get_pfc_feature(bp, &features->pfc, error); 367 368 bnx2x_dcbx_get_ets_feature(bp, &features->ets, error); 369 370 bnx2x_dcbx_map_nw(bp); 371} 372 373#define DCBX_LOCAL_MIB_MAX_TRY_READ (100) 374static int bnx2x_dcbx_read_mib(struct bnx2x *bp, 375 u32 *base_mib_addr, 376 u32 offset, 377 int read_mib_type) 378{ 379 int max_try_read = 0; 380 u32 mib_size, prefix_seq_num, suffix_seq_num; 381 struct lldp_remote_mib *remote_mib ; 382 struct lldp_local_mib *local_mib; 383 384 385 switch (read_mib_type) { 386 case DCBX_READ_LOCAL_MIB: 387 mib_size = sizeof(struct lldp_local_mib); 388 break; 389 case DCBX_READ_REMOTE_MIB: 390 mib_size = sizeof(struct lldp_remote_mib); 391 break; 392 default: 393 return 1; /*error*/ 394 } 395 396 offset += BP_PORT(bp) * mib_size; 397 398 do { 399 bnx2x_read_data(bp, base_mib_addr, offset, mib_size); 400 401 max_try_read++; 402 403 switch (read_mib_type) { 404 case DCBX_READ_LOCAL_MIB: 405 local_mib = (struct lldp_local_mib *) base_mib_addr; 406 prefix_seq_num = local_mib->prefix_seq_num; 407 suffix_seq_num = local_mib->suffix_seq_num; 408 break; 409 case DCBX_READ_REMOTE_MIB: 410 remote_mib = (struct lldp_remote_mib *) base_mib_addr; 411 prefix_seq_num = remote_mib->prefix_seq_num; 412 suffix_seq_num = remote_mib->suffix_seq_num; 413 break; 414 default: 415 return 1; /*error*/ 416 } 417 } while ((prefix_seq_num != suffix_seq_num) && 418 (max_try_read < DCBX_LOCAL_MIB_MAX_TRY_READ)); 419 420 if (max_try_read >= DCBX_LOCAL_MIB_MAX_TRY_READ) { 421 BNX2X_ERR("MIB could not be read\n"); 422 return 1; 423 } 424 425 return 0; 426} 427 428static void bnx2x_pfc_set_pfc(struct bnx2x *bp) 429{ 430 if (bp->dcbx_port_params.pfc.enabled && 431 !(bp->dcbx_error & DCBX_REMOTE_MIB_ERROR)) 432 /* 433 * 1. Fills up common PFC structures if required 434 * 2. Configure NIG, MAC and BRB via the elink 435 */ 436 bnx2x_pfc_set(bp); 437 else 438 bnx2x_pfc_clear(bp); 439} 440 441static int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp) 442{ 443 struct bnx2x_func_state_params func_params = {0}; 444 445 func_params.f_obj = &bp->func_obj; 446 func_params.cmd = BNX2X_F_CMD_TX_STOP; 447 448 DP(NETIF_MSG_LINK, "STOP TRAFFIC\n"); 449 return bnx2x_func_state_change(bp, &func_params); 450} 451 452static int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp) 453{ 454 struct bnx2x_func_state_params func_params = {0}; 455 struct bnx2x_func_tx_start_params *tx_params = 456 &func_params.params.tx_start; 457 458 func_params.f_obj = &bp->func_obj; 459 func_params.cmd = BNX2X_F_CMD_TX_START; 460 461 bnx2x_dcbx_fw_struct(bp, tx_params); 462 463 DP(NETIF_MSG_LINK, "START TRAFFIC\n"); 464 return bnx2x_func_state_change(bp, &func_params); 465} 466 467static void bnx2x_dcbx_2cos_limit_update_ets_config(struct bnx2x *bp) 468{ 469 struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets); 470 int rc = 0; 471 472 if (ets->num_of_cos == 0 || ets->num_of_cos > DCBX_COS_MAX_NUM_E2) { 473 BNX2X_ERR("Illegal number of COSes %d\n", ets->num_of_cos); 474 return; 475 } 476 477 /* valid COS entries */ 478 if (ets->num_of_cos == 1) /* no ETS */ 479 return; 480 481 /* sanity */ 482 if (((BNX2X_DCBX_STRICT_INVALID == ets->cos_params[0].strict) && 483 (DCBX_INVALID_COS_BW == ets->cos_params[0].bw_tbl)) || 484 ((BNX2X_DCBX_STRICT_INVALID == ets->cos_params[1].strict) && 485 (DCBX_INVALID_COS_BW == ets->cos_params[1].bw_tbl))) { 486 BNX2X_ERR("all COS should have at least bw_limit or strict" 487 "ets->cos_params[0].strict= %x" 488 "ets->cos_params[0].bw_tbl= %x" 489 "ets->cos_params[1].strict= %x" 490 "ets->cos_params[1].bw_tbl= %x", 491 ets->cos_params[0].strict, 492 ets->cos_params[0].bw_tbl, 493 ets->cos_params[1].strict, 494 ets->cos_params[1].bw_tbl); 495 return; 496 } 497 /* If we join a group and there is bw_tbl and strict then bw rules */ 498 if ((DCBX_INVALID_COS_BW != ets->cos_params[0].bw_tbl) && 499 (DCBX_INVALID_COS_BW != ets->cos_params[1].bw_tbl)) { 500 u32 bw_tbl_0 = ets->cos_params[0].bw_tbl; 501 u32 bw_tbl_1 = ets->cos_params[1].bw_tbl; 502 /* Do not allow 0-100 configuration 503 * since PBF does not support it 504 * force 1-99 instead 505 */ 506 if (bw_tbl_0 == 0) { 507 bw_tbl_0 = 1; 508 bw_tbl_1 = 99; 509 } else if (bw_tbl_1 == 0) { 510 bw_tbl_1 = 1; 511 bw_tbl_0 = 99; 512 } 513 514 bnx2x_ets_bw_limit(&bp->link_params, bw_tbl_0, bw_tbl_1); 515 } else { 516 if (ets->cos_params[0].strict == BNX2X_DCBX_STRICT_COS_HIGHEST) 517 rc = bnx2x_ets_strict(&bp->link_params, 0); 518 else if (ets->cos_params[1].strict 519 == BNX2X_DCBX_STRICT_COS_HIGHEST) 520 rc = bnx2x_ets_strict(&bp->link_params, 1); 521 if (rc) 522 BNX2X_ERR("update_ets_params failed\n"); 523 } 524} 525 526/* 527 * In E3B0 the configuration may have more than 2 COS. 528 */ 529void bnx2x_dcbx_update_ets_config(struct bnx2x *bp) 530{ 531 struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets); 532 struct bnx2x_ets_params ets_params = { 0 }; 533 u8 i; 534 535 ets_params.num_of_cos = ets->num_of_cos; 536 537 for (i = 0; i < ets->num_of_cos; i++) { 538 /* COS is SP */ 539 if (ets->cos_params[i].strict != BNX2X_DCBX_STRICT_INVALID) { 540 if (ets->cos_params[i].bw_tbl != DCBX_INVALID_COS_BW) { 541 BNX2X_ERR("COS can't be not BW and not SP\n"); 542 return; 543 } 544 545 ets_params.cos[i].state = bnx2x_cos_state_strict; 546 ets_params.cos[i].params.sp_params.pri = 547 ets->cos_params[i].strict; 548 } else { /* COS is BW */ 549 if (ets->cos_params[i].bw_tbl == DCBX_INVALID_COS_BW) { 550 BNX2X_ERR("COS can't be not BW and not SP\n"); 551 return; 552 } 553 ets_params.cos[i].state = bnx2x_cos_state_bw; 554 ets_params.cos[i].params.bw_params.bw = 555 (u8)ets->cos_params[i].bw_tbl; 556 } 557 } 558 559 /* Configure the ETS in HW */ 560 if (bnx2x_ets_e3b0_config(&bp->link_params, &bp->link_vars, 561 &ets_params)) { 562 BNX2X_ERR("bnx2x_ets_e3b0_config failed\n"); 563 bnx2x_ets_disabled(&bp->link_params, &bp->link_vars); 564 } 565} 566 567static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp) 568{ 569 bnx2x_ets_disabled(&bp->link_params, &bp->link_vars); 570 571 if (!bp->dcbx_port_params.ets.enabled || 572 (bp->dcbx_error & DCBX_REMOTE_MIB_ERROR)) 573 return; 574 575 if (CHIP_IS_E3B0(bp)) 576 bnx2x_dcbx_update_ets_config(bp); 577 else 578 bnx2x_dcbx_2cos_limit_update_ets_config(bp); 579} 580 581#ifdef BCM_DCBNL 582static int bnx2x_dcbx_read_shmem_remote_mib(struct bnx2x *bp) 583{ 584 struct lldp_remote_mib remote_mib = {0}; 585 u32 dcbx_remote_mib_offset = SHMEM2_RD(bp, dcbx_remote_mib_offset); 586 int rc; 587 588 DP(NETIF_MSG_LINK, "dcbx_remote_mib_offset 0x%x\n", 589 dcbx_remote_mib_offset); 590 591 if (SHMEM_DCBX_REMOTE_MIB_NONE == dcbx_remote_mib_offset) { 592 BNX2X_ERR("FW doesn't support dcbx_remote_mib_offset\n"); 593 return -EINVAL; 594 } 595 596 rc = bnx2x_dcbx_read_mib(bp, (u32 *)&remote_mib, dcbx_remote_mib_offset, 597 DCBX_READ_REMOTE_MIB); 598 599 if (rc) { 600 BNX2X_ERR("Faild to read remote mib from FW\n"); 601 return rc; 602 } 603 604 /* save features and flags */ 605 bp->dcbx_remote_feat = remote_mib.features; 606 bp->dcbx_remote_flags = remote_mib.flags; 607 return 0; 608} 609#endif 610 611static int bnx2x_dcbx_read_shmem_neg_results(struct bnx2x *bp) 612{ 613 struct lldp_local_mib local_mib = {0}; 614 u32 dcbx_neg_res_offset = SHMEM2_RD(bp, dcbx_neg_res_offset); 615 int rc; 616 617 DP(NETIF_MSG_LINK, "dcbx_neg_res_offset 0x%x\n", dcbx_neg_res_offset); 618 619 if (SHMEM_DCBX_NEG_RES_NONE == dcbx_neg_res_offset) { 620 BNX2X_ERR("FW doesn't support dcbx_neg_res_offset\n"); 621 return -EINVAL; 622 } 623 624 rc = bnx2x_dcbx_read_mib(bp, (u32 *)&local_mib, dcbx_neg_res_offset, 625 DCBX_READ_LOCAL_MIB); 626 627 if (rc) { 628 BNX2X_ERR("Faild to read local mib from FW\n"); 629 return rc; 630 } 631 632 /* save features and error */ 633 bp->dcbx_local_feat = local_mib.features; 634 bp->dcbx_error = local_mib.error; 635 return 0; 636} 637 638 639#ifdef BCM_DCBNL 640static inline 641u8 bnx2x_dcbx_dcbnl_app_up(struct dcbx_app_priority_entry *ent) 642{ 643 u8 pri; 644 645 /* Choose the highest priority */ 646 for (pri = MAX_PFC_PRIORITIES - 1; pri > 0; pri--) 647 if (ent->pri_bitmap & (1 << pri)) 648 break; 649 return pri; 650} 651 652static inline 653u8 bnx2x_dcbx_dcbnl_app_idtype(struct dcbx_app_priority_entry *ent) 654{ 655 return ((ent->appBitfield & DCBX_APP_ENTRY_SF_MASK) == 656 DCBX_APP_SF_PORT) ? DCB_APP_IDTYPE_PORTNUM : 657 DCB_APP_IDTYPE_ETHTYPE; 658} 659 660int bnx2x_dcbnl_update_applist(struct bnx2x *bp, bool delall) 661{ 662 int i, err = 0; 663 664 for (i = 0; i < DCBX_MAX_APP_PROTOCOL && err == 0; i++) { 665 struct dcbx_app_priority_entry *ent = 666 &bp->dcbx_local_feat.app.app_pri_tbl[i]; 667 668 if (ent->appBitfield & DCBX_APP_ENTRY_VALID) { 669 u8 up = bnx2x_dcbx_dcbnl_app_up(ent); 670 671 /* avoid invalid user-priority */ 672 if (up) { 673 struct dcb_app app; 674 app.selector = bnx2x_dcbx_dcbnl_app_idtype(ent); 675 app.protocol = ent->app_id; 676 app.priority = delall ? 0 : up; 677 err = dcb_setapp(bp->dev, &app); 678 } 679 } 680 } 681 return err; 682} 683#endif 684 685static inline void bnx2x_update_drv_flags(struct bnx2x *bp, u32 flags, u32 set) 686{ 687 if (SHMEM2_HAS(bp, drv_flags)) { 688 u32 drv_flags; 689 bnx2x_acquire_hw_lock(bp, HW_LOCK_DRV_FLAGS); 690 drv_flags = SHMEM2_RD(bp, drv_flags); 691 692 if (set) 693 SET_FLAGS(drv_flags, flags); 694 else 695 RESET_FLAGS(drv_flags, flags); 696 697 SHMEM2_WR(bp, drv_flags, drv_flags); 698 DP(NETIF_MSG_HW, "drv_flags 0x%08x\n", drv_flags); 699 bnx2x_release_hw_lock(bp, HW_LOCK_DRV_FLAGS); 700 } 701} 702 703static inline void bnx2x_dcbx_update_tc_mapping(struct bnx2x *bp) 704{ 705 u8 prio, cos; 706 for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++) { 707 for (prio = 0; prio < BNX2X_MAX_PRIORITY; prio++) { 708 if (bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask 709 & (1 << prio)) { 710 bp->prio_to_cos[prio] = cos; 711 DP(NETIF_MSG_LINK, 712 "tx_mapping %d --> %d\n", prio, cos); 713 } 714 } 715 } 716 717 /* setup tc must be called under rtnl lock, but we can't take it here 718 * as we are handling an attetntion on a work queue which must be 719 * flushed at some rtnl-locked contexts (e.g. if down) 720 */ 721 if (!test_and_set_bit(BNX2X_SP_RTNL_SETUP_TC, &bp->sp_rtnl_state)) 722 schedule_delayed_work(&bp->sp_rtnl_task, 0); 723} 724 725void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state) 726{ 727 switch (state) { 728 case BNX2X_DCBX_STATE_NEG_RECEIVED: 729 { 730 DP(NETIF_MSG_LINK, "BNX2X_DCBX_STATE_NEG_RECEIVED\n"); 731#ifdef BCM_DCBNL 732 /** 733 * Delete app tlvs from dcbnl before reading new 734 * negotiation results 735 */ 736 bnx2x_dcbnl_update_applist(bp, true); 737 738 /* Read rmeote mib if dcbx is in the FW */ 739 if (bnx2x_dcbx_read_shmem_remote_mib(bp)) 740 return; 741#endif 742 /* Read neg results if dcbx is in the FW */ 743 if (bnx2x_dcbx_read_shmem_neg_results(bp)) 744 return; 745 746 bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat, 747 bp->dcbx_error); 748 749 bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat, 750 bp->dcbx_error); 751 752 /* mark DCBX result for PMF migration */ 753 bnx2x_update_drv_flags(bp, DRV_FLAGS_DCB_CONFIGURED, 1); 754#ifdef BCM_DCBNL 755 /** 756 * Add new app tlvs to dcbnl 757 */ 758 bnx2x_dcbnl_update_applist(bp, false); 759#endif 760 bnx2x_dcbx_stop_hw_tx(bp); 761 762 /* reconfigure the netdevice with the results of the new 763 * dcbx negotiation. 764 */ 765 bnx2x_dcbx_update_tc_mapping(bp); 766 767 return; 768 } 769 case BNX2X_DCBX_STATE_TX_PAUSED: 770 DP(NETIF_MSG_LINK, "BNX2X_DCBX_STATE_TX_PAUSED\n"); 771 bnx2x_pfc_set_pfc(bp); 772 773 bnx2x_dcbx_update_ets_params(bp); 774 bnx2x_dcbx_resume_hw_tx(bp); 775 return; 776 case BNX2X_DCBX_STATE_TX_RELEASED: 777 DP(NETIF_MSG_LINK, "BNX2X_DCBX_STATE_TX_RELEASED\n"); 778 bnx2x_fw_command(bp, DRV_MSG_CODE_DCBX_PMF_DRV_OK, 0); 779#ifdef BCM_DCBNL 780 /* 781 * Send a notification for the new negotiated parameters 782 */ 783 dcbnl_cee_notify(bp->dev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0); 784#endif 785 return; 786 default: 787 BNX2X_ERR("Unknown DCBX_STATE\n"); 788 } 789} 790 791#define LLDP_ADMIN_MIB_OFFSET(bp) (PORT_MAX*sizeof(struct lldp_params) + \ 792 BP_PORT(bp)*sizeof(struct lldp_admin_mib)) 793 794static void bnx2x_dcbx_admin_mib_updated_params(struct bnx2x *bp, 795 u32 dcbx_lldp_params_offset) 796{ 797 struct lldp_admin_mib admin_mib; 798 u32 i, other_traf_type = PREDEFINED_APP_IDX_MAX, traf_type = 0; 799 u32 offset = dcbx_lldp_params_offset + LLDP_ADMIN_MIB_OFFSET(bp); 800 801 /*shortcuts*/ 802 struct dcbx_features *af = &admin_mib.features; 803 struct bnx2x_config_dcbx_params *dp = &bp->dcbx_config_params; 804 805 memset(&admin_mib, 0, sizeof(struct lldp_admin_mib)); 806 807 /* Read the data first */ 808 bnx2x_read_data(bp, (u32 *)&admin_mib, offset, 809 sizeof(struct lldp_admin_mib)); 810 811 if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON) 812 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED); 813 else 814 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED); 815 816 if (dp->overwrite_settings == BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE) { 817 818 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_CEE_VERSION_MASK); 819 admin_mib.ver_cfg_flags |= 820 (dp->admin_dcbx_version << DCBX_CEE_VERSION_SHIFT) & 821 DCBX_CEE_VERSION_MASK; 822 823 af->ets.enabled = (u8)dp->admin_ets_enable; 824 825 af->pfc.enabled = (u8)dp->admin_pfc_enable; 826 827 /* FOR IEEE dp->admin_tc_supported_tx_enable */ 828 if (dp->admin_ets_configuration_tx_enable) 829 SET_FLAGS(admin_mib.ver_cfg_flags, 830 DCBX_ETS_CONFIG_TX_ENABLED); 831 else 832 RESET_FLAGS(admin_mib.ver_cfg_flags, 833 DCBX_ETS_CONFIG_TX_ENABLED); 834 /* For IEEE admin_ets_recommendation_tx_enable */ 835 if (dp->admin_pfc_tx_enable) 836 SET_FLAGS(admin_mib.ver_cfg_flags, 837 DCBX_PFC_CONFIG_TX_ENABLED); 838 else 839 RESET_FLAGS(admin_mib.ver_cfg_flags, 840 DCBX_PFC_CONFIG_TX_ENABLED); 841 842 if (dp->admin_application_priority_tx_enable) 843 SET_FLAGS(admin_mib.ver_cfg_flags, 844 DCBX_APP_CONFIG_TX_ENABLED); 845 else 846 RESET_FLAGS(admin_mib.ver_cfg_flags, 847 DCBX_APP_CONFIG_TX_ENABLED); 848 849 if (dp->admin_ets_willing) 850 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING); 851 else 852 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING); 853 /* For IEEE admin_ets_reco_valid */ 854 if (dp->admin_pfc_willing) 855 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING); 856 else 857 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING); 858 859 if (dp->admin_app_priority_willing) 860 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING); 861 else 862 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING); 863 864 for (i = 0 ; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++) { 865 DCBX_PG_BW_SET(af->ets.pg_bw_tbl, i, 866 (u8)dp->admin_configuration_bw_precentage[i]); 867 868 DP(NETIF_MSG_LINK, "pg_bw_tbl[%d] = %02x\n", 869 i, DCBX_PG_BW_GET(af->ets.pg_bw_tbl, i)); 870 } 871 872 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) { 873 DCBX_PRI_PG_SET(af->ets.pri_pg_tbl, i, 874 (u8)dp->admin_configuration_ets_pg[i]); 875 876 DP(NETIF_MSG_LINK, "pri_pg_tbl[%d] = %02x\n", 877 i, DCBX_PRI_PG_GET(af->ets.pri_pg_tbl, i)); 878 } 879 880 /*For IEEE admin_recommendation_bw_precentage 881 *For IEEE admin_recommendation_ets_pg */ 882 af->pfc.pri_en_bitmap = (u8)dp->admin_pfc_bitmap; 883 for (i = 0; i < 4; i++) { 884 if (dp->admin_priority_app_table[i].valid) { 885 struct bnx2x_admin_priority_app_table *table = 886 dp->admin_priority_app_table; 887 if ((ETH_TYPE_FCOE == table[i].app_id) && 888 (TRAFFIC_TYPE_ETH == table[i].traffic_type)) 889 traf_type = FCOE_APP_IDX; 890 else if ((TCP_PORT_ISCSI == table[i].app_id) && 891 (TRAFFIC_TYPE_PORT == table[i].traffic_type)) 892 traf_type = ISCSI_APP_IDX; 893 else 894 traf_type = other_traf_type++; 895 896 af->app.app_pri_tbl[traf_type].app_id = 897 table[i].app_id; 898 899 af->app.app_pri_tbl[traf_type].pri_bitmap = 900 (u8)(1 << table[i].priority); 901 902 af->app.app_pri_tbl[traf_type].appBitfield = 903 (DCBX_APP_ENTRY_VALID); 904 905 af->app.app_pri_tbl[traf_type].appBitfield |= 906 (TRAFFIC_TYPE_ETH == table[i].traffic_type) ? 907 DCBX_APP_SF_ETH_TYPE : DCBX_APP_SF_PORT; 908 } 909 } 910 911 af->app.default_pri = (u8)dp->admin_default_priority; 912 913 } 914 915 /* Write the data. */ 916 bnx2x_write_data(bp, (u32 *)&admin_mib, offset, 917 sizeof(struct lldp_admin_mib)); 918 919} 920 921void bnx2x_dcbx_set_state(struct bnx2x *bp, bool dcb_on, u32 dcbx_enabled) 922{ 923 if (!CHIP_IS_E1x(bp)) { 924 bp->dcb_state = dcb_on; 925 bp->dcbx_enabled = dcbx_enabled; 926 } else { 927 bp->dcb_state = false; 928 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_INVALID; 929 } 930 DP(NETIF_MSG_LINK, "DCB state [%s:%s]\n", 931 dcb_on ? "ON" : "OFF", 932 dcbx_enabled == BNX2X_DCBX_ENABLED_OFF ? "user-mode" : 933 dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF ? "on-chip static" : 934 dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON ? 935 "on-chip with negotiation" : "invalid"); 936} 937 938void bnx2x_dcbx_init_params(struct bnx2x *bp) 939{ 940 bp->dcbx_config_params.admin_dcbx_version = 0x0; /* 0 - CEE; 1 - IEEE */ 941 bp->dcbx_config_params.admin_ets_willing = 1; 942 bp->dcbx_config_params.admin_pfc_willing = 1; 943 bp->dcbx_config_params.overwrite_settings = 1; 944 bp->dcbx_config_params.admin_ets_enable = 1; 945 bp->dcbx_config_params.admin_pfc_enable = 1; 946 bp->dcbx_config_params.admin_tc_supported_tx_enable = 1; 947 bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1; 948 bp->dcbx_config_params.admin_pfc_tx_enable = 1; 949 bp->dcbx_config_params.admin_application_priority_tx_enable = 1; 950 bp->dcbx_config_params.admin_ets_reco_valid = 1; 951 bp->dcbx_config_params.admin_app_priority_willing = 1; 952 bp->dcbx_config_params.admin_configuration_bw_precentage[0] = 00; 953 bp->dcbx_config_params.admin_configuration_bw_precentage[1] = 50; 954 bp->dcbx_config_params.admin_configuration_bw_precentage[2] = 50; 955 bp->dcbx_config_params.admin_configuration_bw_precentage[3] = 0; 956 bp->dcbx_config_params.admin_configuration_bw_precentage[4] = 0; 957 bp->dcbx_config_params.admin_configuration_bw_precentage[5] = 0; 958 bp->dcbx_config_params.admin_configuration_bw_precentage[6] = 0; 959 bp->dcbx_config_params.admin_configuration_bw_precentage[7] = 0; 960 bp->dcbx_config_params.admin_configuration_ets_pg[0] = 1; 961 bp->dcbx_config_params.admin_configuration_ets_pg[1] = 0; 962 bp->dcbx_config_params.admin_configuration_ets_pg[2] = 0; 963 bp->dcbx_config_params.admin_configuration_ets_pg[3] = 2; 964 bp->dcbx_config_params.admin_configuration_ets_pg[4] = 0; 965 bp->dcbx_config_params.admin_configuration_ets_pg[5] = 0; 966 bp->dcbx_config_params.admin_configuration_ets_pg[6] = 0; 967 bp->dcbx_config_params.admin_configuration_ets_pg[7] = 0; 968 bp->dcbx_config_params.admin_recommendation_bw_precentage[0] = 0; 969 bp->dcbx_config_params.admin_recommendation_bw_precentage[1] = 1; 970 bp->dcbx_config_params.admin_recommendation_bw_precentage[2] = 2; 971 bp->dcbx_config_params.admin_recommendation_bw_precentage[3] = 0; 972 bp->dcbx_config_params.admin_recommendation_bw_precentage[4] = 7; 973 bp->dcbx_config_params.admin_recommendation_bw_precentage[5] = 5; 974 bp->dcbx_config_params.admin_recommendation_bw_precentage[6] = 6; 975 bp->dcbx_config_params.admin_recommendation_bw_precentage[7] = 7; 976 bp->dcbx_config_params.admin_recommendation_ets_pg[0] = 0; 977 bp->dcbx_config_params.admin_recommendation_ets_pg[1] = 1; 978 bp->dcbx_config_params.admin_recommendation_ets_pg[2] = 2; 979 bp->dcbx_config_params.admin_recommendation_ets_pg[3] = 3; 980 bp->dcbx_config_params.admin_recommendation_ets_pg[4] = 4; 981 bp->dcbx_config_params.admin_recommendation_ets_pg[5] = 5; 982 bp->dcbx_config_params.admin_recommendation_ets_pg[6] = 6; 983 bp->dcbx_config_params.admin_recommendation_ets_pg[7] = 7; 984 bp->dcbx_config_params.admin_pfc_bitmap = 0x8; /* FCoE(3) enable */ 985 bp->dcbx_config_params.admin_priority_app_table[0].valid = 1; 986 bp->dcbx_config_params.admin_priority_app_table[1].valid = 1; 987 bp->dcbx_config_params.admin_priority_app_table[2].valid = 0; 988 bp->dcbx_config_params.admin_priority_app_table[3].valid = 0; 989 bp->dcbx_config_params.admin_priority_app_table[0].priority = 3; 990 bp->dcbx_config_params.admin_priority_app_table[1].priority = 0; 991 bp->dcbx_config_params.admin_priority_app_table[2].priority = 0; 992 bp->dcbx_config_params.admin_priority_app_table[3].priority = 0; 993 bp->dcbx_config_params.admin_priority_app_table[0].traffic_type = 0; 994 bp->dcbx_config_params.admin_priority_app_table[1].traffic_type = 1; 995 bp->dcbx_config_params.admin_priority_app_table[2].traffic_type = 0; 996 bp->dcbx_config_params.admin_priority_app_table[3].traffic_type = 0; 997 bp->dcbx_config_params.admin_priority_app_table[0].app_id = 0x8906; 998 bp->dcbx_config_params.admin_priority_app_table[1].app_id = 3260; 999 bp->dcbx_config_params.admin_priority_app_table[2].app_id = 0; 1000 bp->dcbx_config_params.admin_priority_app_table[3].app_id = 0; 1001 bp->dcbx_config_params.admin_default_priority = 1002 bp->dcbx_config_params.admin_priority_app_table[1].priority; 1003} 1004 1005void bnx2x_dcbx_init(struct bnx2x *bp) 1006{ 1007 u32 dcbx_lldp_params_offset = SHMEM_LLDP_DCBX_PARAMS_NONE; 1008 1009 if (bp->dcbx_enabled <= 0) 1010 return; 1011 1012 /* validate: 1013 * chip of good for dcbx version, 1014 * dcb is wanted 1015 * the function is pmf 1016 * shmem2 contains DCBX support fields 1017 */ 1018 DP(NETIF_MSG_LINK, "dcb_state %d bp->port.pmf %d\n", 1019 bp->dcb_state, bp->port.pmf); 1020 1021 if (bp->dcb_state == BNX2X_DCB_STATE_ON && bp->port.pmf && 1022 SHMEM2_HAS(bp, dcbx_lldp_params_offset)) { 1023 dcbx_lldp_params_offset = 1024 SHMEM2_RD(bp, dcbx_lldp_params_offset); 1025 1026 DP(NETIF_MSG_LINK, "dcbx_lldp_params_offset 0x%x\n", 1027 dcbx_lldp_params_offset); 1028 1029 bnx2x_update_drv_flags(bp, DRV_FLAGS_DCB_CONFIGURED, 0); 1030 1031 if (SHMEM_LLDP_DCBX_PARAMS_NONE != dcbx_lldp_params_offset) { 1032 bnx2x_dcbx_admin_mib_updated_params(bp, 1033 dcbx_lldp_params_offset); 1034 1035 /* Let HW start negotiation */ 1036 bnx2x_fw_command(bp, 1037 DRV_MSG_CODE_DCBX_ADMIN_PMF_MSG, 0); 1038 } 1039 } 1040} 1041static void 1042bnx2x_dcbx_print_cos_params(struct bnx2x *bp, 1043 struct bnx2x_func_tx_start_params *pfc_fw_cfg) 1044{ 1045 u8 pri = 0; 1046 u8 cos = 0; 1047 1048 DP(NETIF_MSG_LINK, 1049 "pfc_fw_cfg->dcb_version %x\n", pfc_fw_cfg->dcb_version); 1050 DP(NETIF_MSG_LINK, 1051 "pdev->params.dcbx_port_params.pfc." 1052 "priority_non_pauseable_mask %x\n", 1053 bp->dcbx_port_params.pfc.priority_non_pauseable_mask); 1054 1055 for (cos = 0 ; cos < bp->dcbx_port_params.ets.num_of_cos ; cos++) { 1056 DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets." 1057 "cos_params[%d].pri_bitmask %x\n", cos, 1058 bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask); 1059 1060 DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets." 1061 "cos_params[%d].bw_tbl %x\n", cos, 1062 bp->dcbx_port_params.ets.cos_params[cos].bw_tbl); 1063 1064 DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets." 1065 "cos_params[%d].strict %x\n", cos, 1066 bp->dcbx_port_params.ets.cos_params[cos].strict); 1067 1068 DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets." 1069 "cos_params[%d].pauseable %x\n", cos, 1070 bp->dcbx_port_params.ets.cos_params[cos].pauseable); 1071 } 1072 1073 for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) { 1074 DP(NETIF_MSG_LINK, 1075 "pfc_fw_cfg->traffic_type_to_priority_cos[%d]." 1076 "priority %x\n", pri, 1077 pfc_fw_cfg->traffic_type_to_priority_cos[pri].priority); 1078 1079 DP(NETIF_MSG_LINK, 1080 "pfc_fw_cfg->traffic_type_to_priority_cos[%d].cos %x\n", 1081 pri, pfc_fw_cfg->traffic_type_to_priority_cos[pri].cos); 1082 } 1083} 1084 1085/* fills help_data according to pg_info */ 1086static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp, 1087 u32 *pg_pri_orginal_spread, 1088 struct pg_help_data *help_data) 1089{ 1090 bool pg_found = false; 1091 u32 i, traf_type, add_traf_type, add_pg; 1092 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority; 1093 struct pg_entry_help_data *data = help_data->data; /*shotcut*/ 1094 1095 /* Set to invalid */ 1096 for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++) 1097 data[i].pg = DCBX_ILLEGAL_PG; 1098 1099 for (add_traf_type = 0; 1100 add_traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX; add_traf_type++) { 1101 pg_found = false; 1102 if (ttp[add_traf_type] < MAX_PFC_PRIORITIES) { 1103 add_pg = (u8)pg_pri_orginal_spread[ttp[add_traf_type]]; 1104 for (traf_type = 0; 1105 traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX; 1106 traf_type++) { 1107 if (data[traf_type].pg == add_pg) { 1108 if (!(data[traf_type].pg_priority & 1109 (1 << ttp[add_traf_type]))) 1110 data[traf_type]. 1111 num_of_dif_pri++; 1112 data[traf_type].pg_priority |= 1113 (1 << ttp[add_traf_type]); 1114 pg_found = true; 1115 break; 1116 } 1117 } 1118 if (false == pg_found) { 1119 data[help_data->num_of_pg].pg = add_pg; 1120 data[help_data->num_of_pg].pg_priority = 1121 (1 << ttp[add_traf_type]); 1122 data[help_data->num_of_pg].num_of_dif_pri = 1; 1123 help_data->num_of_pg++; 1124 } 1125 } 1126 DP(NETIF_MSG_LINK, 1127 "add_traf_type %d pg_found %s num_of_pg %d\n", 1128 add_traf_type, (false == pg_found) ? "NO" : "YES", 1129 help_data->num_of_pg); 1130 } 1131} 1132 1133static void bnx2x_dcbx_ets_disabled_entry_data(struct bnx2x *bp, 1134 struct cos_help_data *cos_data, 1135 u32 pri_join_mask) 1136{ 1137 /* Only one priority than only one COS */ 1138 cos_data->data[0].pausable = 1139 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask); 1140 cos_data->data[0].pri_join_mask = pri_join_mask; 1141 cos_data->data[0].cos_bw = 100; 1142 cos_data->num_of_cos = 1; 1143} 1144 1145static inline void bnx2x_dcbx_add_to_cos_bw(struct bnx2x *bp, 1146 struct cos_entry_help_data *data, 1147 u8 pg_bw) 1148{ 1149 if (data->cos_bw == DCBX_INVALID_COS_BW) 1150 data->cos_bw = pg_bw; 1151 else 1152 data->cos_bw += pg_bw; 1153} 1154 1155static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp, 1156 struct cos_help_data *cos_data, 1157 u32 *pg_pri_orginal_spread, 1158 struct dcbx_ets_feature *ets) 1159{ 1160 u32 pri_tested = 0; 1161 u8 i = 0; 1162 u8 entry = 0; 1163 u8 pg_entry = 0; 1164 u8 num_of_pri = LLFC_DRIVER_TRAFFIC_TYPE_MAX; 1165 1166 cos_data->data[0].pausable = true; 1167 cos_data->data[1].pausable = false; 1168 cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0; 1169 1170 for (i = 0 ; i < num_of_pri ; i++) { 1171 pri_tested = 1 << bp->dcbx_port_params. 1172 app.traffic_type_priority[i]; 1173 1174 if (pri_tested & DCBX_PFC_PRI_NON_PAUSE_MASK(bp)) { 1175 cos_data->data[1].pri_join_mask |= pri_tested; 1176 entry = 1; 1177 } else { 1178 cos_data->data[0].pri_join_mask |= pri_tested; 1179 entry = 0; 1180 } 1181 pg_entry = (u8)pg_pri_orginal_spread[bp->dcbx_port_params. 1182 app.traffic_type_priority[i]]; 1183 /* There can be only one strict pg */ 1184 if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES) 1185 bnx2x_dcbx_add_to_cos_bw(bp, &cos_data->data[entry], 1186 DCBX_PG_BW_GET(ets->pg_bw_tbl, pg_entry)); 1187 else 1188 /* If we join a group and one is strict 1189 * than the bw rulls */ 1190 cos_data->data[entry].strict = 1191 BNX2X_DCBX_STRICT_COS_HIGHEST; 1192 } 1193 if ((0 == cos_data->data[0].pri_join_mask) && 1194 (0 == cos_data->data[1].pri_join_mask)) 1195 BNX2X_ERR("dcbx error: Both groups must have priorities\n"); 1196} 1197 1198 1199#ifndef POWER_OF_2 1200#define POWER_OF_2(x) ((0 != x) && (0 == (x & (x-1)))) 1201#endif 1202 1203static void bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params(struct bnx2x *bp, 1204 struct pg_help_data *pg_help_data, 1205 struct cos_help_data *cos_data, 1206 u32 pri_join_mask, 1207 u8 num_of_dif_pri) 1208{ 1209 u8 i = 0; 1210 u32 pri_tested = 0; 1211 u32 pri_mask_without_pri = 0; 1212 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority; 1213 /*debug*/ 1214 if (num_of_dif_pri == 1) { 1215 bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data, pri_join_mask); 1216 return; 1217 } 1218 /* single priority group */ 1219 if (pg_help_data->data[0].pg < DCBX_MAX_NUM_PG_BW_ENTRIES) { 1220 /* If there are both pauseable and non-pauseable priorities, 1221 * the pauseable priorities go to the first queue and 1222 * the non-pauseable priorities go to the second queue. 1223 */ 1224 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) { 1225 /* Pauseable */ 1226 cos_data->data[0].pausable = true; 1227 /* Non pauseable.*/ 1228 cos_data->data[1].pausable = false; 1229 1230 if (2 == num_of_dif_pri) { 1231 cos_data->data[0].cos_bw = 50; 1232 cos_data->data[1].cos_bw = 50; 1233 } 1234 1235 if (3 == num_of_dif_pri) { 1236 if (POWER_OF_2(DCBX_PFC_PRI_GET_PAUSE(bp, 1237 pri_join_mask))) { 1238 cos_data->data[0].cos_bw = 33; 1239 cos_data->data[1].cos_bw = 67; 1240 } else { 1241 cos_data->data[0].cos_bw = 67; 1242 cos_data->data[1].cos_bw = 33; 1243 } 1244 } 1245 1246 } else if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask)) { 1247 /* If there are only pauseable priorities, 1248 * then one/two priorities go to the first queue 1249 * and one priority goes to the second queue. 1250 */ 1251 if (2 == num_of_dif_pri) { 1252 cos_data->data[0].cos_bw = 50; 1253 cos_data->data[1].cos_bw = 50; 1254 } else { 1255 cos_data->data[0].cos_bw = 67; 1256 cos_data->data[1].cos_bw = 33; 1257 } 1258 cos_data->data[1].pausable = true; 1259 cos_data->data[0].pausable = true; 1260 /* All priorities except FCOE */ 1261 cos_data->data[0].pri_join_mask = (pri_join_mask & 1262 ((u8)~(1 << ttp[LLFC_TRAFFIC_TYPE_FCOE]))); 1263 /* Only FCOE priority.*/ 1264 cos_data->data[1].pri_join_mask = 1265 (1 << ttp[LLFC_TRAFFIC_TYPE_FCOE]); 1266 } else 1267 /* If there are only non-pauseable priorities, 1268 * they will all go to the same queue. 1269 */ 1270 bnx2x_dcbx_ets_disabled_entry_data(bp, 1271 cos_data, pri_join_mask); 1272 } else { 1273 /* priority group which is not BW limited (PG#15):*/ 1274 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) { 1275 /* If there are both pauseable and non-pauseable 1276 * priorities, the pauseable priorities go to the first 1277 * queue and the non-pauseable priorities 1278 * go to the second queue. 1279 */ 1280 if (DCBX_PFC_PRI_GET_PAUSE(bp, pri_join_mask) > 1281 DCBX_PFC_PRI_GET_NON_PAUSE(bp, pri_join_mask)) { 1282 cos_data->data[0].strict = 1283 BNX2X_DCBX_STRICT_COS_HIGHEST; 1284 cos_data->data[1].strict = 1285 BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI( 1286 BNX2X_DCBX_STRICT_COS_HIGHEST); 1287 } else { 1288 cos_data->data[0].strict = 1289 BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI( 1290 BNX2X_DCBX_STRICT_COS_HIGHEST); 1291 cos_data->data[1].strict = 1292 BNX2X_DCBX_STRICT_COS_HIGHEST; 1293 } 1294 /* Pauseable */ 1295 cos_data->data[0].pausable = true; 1296 /* Non pause-able.*/ 1297 cos_data->data[1].pausable = false; 1298 } else { 1299 /* If there are only pauseable priorities or 1300 * only non-pauseable,* the lower priorities go 1301 * to the first queue and the higherpriorities go 1302 * to the second queue. 1303 */ 1304 cos_data->data[0].pausable = 1305 cos_data->data[1].pausable = 1306 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask); 1307 1308 for (i = 0 ; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++) { 1309 pri_tested = 1 << bp->dcbx_port_params. 1310 app.traffic_type_priority[i]; 1311 /* Remove priority tested */ 1312 pri_mask_without_pri = 1313 (pri_join_mask & ((u8)(~pri_tested))); 1314 if (pri_mask_without_pri < pri_tested) 1315 break; 1316 } 1317 1318 if (i == LLFC_DRIVER_TRAFFIC_TYPE_MAX) 1319 BNX2X_ERR("Invalid value for pri_join_mask -" 1320 " could not find a priority\n"); 1321 1322 cos_data->data[0].pri_join_mask = pri_mask_without_pri; 1323 cos_data->data[1].pri_join_mask = pri_tested; 1324 /* Both queues are strict priority, 1325 * and that with the highest priority 1326 * gets the highest strict priority in the arbiter. 1327 */ 1328 cos_data->data[0].strict = 1329 BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI( 1330 BNX2X_DCBX_STRICT_COS_HIGHEST); 1331 cos_data->data[1].strict = 1332 BNX2X_DCBX_STRICT_COS_HIGHEST; 1333 } 1334 } 1335} 1336 1337static void bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params( 1338 struct bnx2x *bp, 1339 struct pg_help_data *pg_help_data, 1340 struct dcbx_ets_feature *ets, 1341 struct cos_help_data *cos_data, 1342 u32 *pg_pri_orginal_spread, 1343 u32 pri_join_mask, 1344 u8 num_of_dif_pri) 1345{ 1346 u8 i = 0; 1347 u8 pg[DCBX_COS_MAX_NUM_E2] = { 0 }; 1348 1349 /* If there are both pauseable and non-pauseable priorities, 1350 * the pauseable priorities go to the first queue and 1351 * the non-pauseable priorities go to the second queue. 1352 */ 1353 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) { 1354 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, 1355 pg_help_data->data[0].pg_priority) || 1356 IS_DCBX_PFC_PRI_MIX_PAUSE(bp, 1357 pg_help_data->data[1].pg_priority)) { 1358 /* If one PG contains both pauseable and 1359 * non-pauseable priorities then ETS is disabled. 1360 */ 1361 bnx2x_dcbx_separate_pauseable_from_non(bp, cos_data, 1362 pg_pri_orginal_spread, ets); 1363 bp->dcbx_port_params.ets.enabled = false; 1364 return; 1365 } 1366 1367 /* Pauseable */ 1368 cos_data->data[0].pausable = true; 1369 /* Non pauseable. */ 1370 cos_data->data[1].pausable = false; 1371 if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, 1372 pg_help_data->data[0].pg_priority)) { 1373 /* 0 is pauseable */ 1374 cos_data->data[0].pri_join_mask = 1375 pg_help_data->data[0].pg_priority; 1376 pg[0] = pg_help_data->data[0].pg; 1377 cos_data->data[1].pri_join_mask = 1378 pg_help_data->data[1].pg_priority; 1379 pg[1] = pg_help_data->data[1].pg; 1380 } else {/* 1 is pauseable */ 1381 cos_data->data[0].pri_join_mask = 1382 pg_help_data->data[1].pg_priority; 1383 pg[0] = pg_help_data->data[1].pg; 1384 cos_data->data[1].pri_join_mask = 1385 pg_help_data->data[0].pg_priority; 1386 pg[1] = pg_help_data->data[0].pg; 1387 } 1388 } else { 1389 /* If there are only pauseable priorities or 1390 * only non-pauseable, each PG goes to a queue. 1391 */ 1392 cos_data->data[0].pausable = cos_data->data[1].pausable = 1393 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask); 1394 cos_data->data[0].pri_join_mask = 1395 pg_help_data->data[0].pg_priority; 1396 pg[0] = pg_help_data->data[0].pg; 1397 cos_data->data[1].pri_join_mask = 1398 pg_help_data->data[1].pg_priority; 1399 pg[1] = pg_help_data->data[1].pg; 1400 } 1401 1402 /* There can be only one strict pg */ 1403 for (i = 0 ; i < ARRAY_SIZE(pg); i++) { 1404 if (pg[i] < DCBX_MAX_NUM_PG_BW_ENTRIES) 1405 cos_data->data[i].cos_bw = 1406 DCBX_PG_BW_GET(ets->pg_bw_tbl, pg[i]); 1407 else 1408 cos_data->data[i].strict = 1409 BNX2X_DCBX_STRICT_COS_HIGHEST; 1410 } 1411} 1412 1413static int bnx2x_dcbx_join_pgs( 1414 struct bnx2x *bp, 1415 struct dcbx_ets_feature *ets, 1416 struct pg_help_data *pg_help_data, 1417 u8 required_num_of_pg) 1418{ 1419 u8 entry_joined = pg_help_data->num_of_pg - 1; 1420 u8 entry_removed = entry_joined + 1; 1421 u8 pg_joined = 0; 1422 1423 if (required_num_of_pg == 0 || ARRAY_SIZE(pg_help_data->data) 1424 <= pg_help_data->num_of_pg) { 1425 1426 BNX2X_ERR("required_num_of_pg can't be zero\n"); 1427 return -EINVAL; 1428 } 1429 1430 while (required_num_of_pg < pg_help_data->num_of_pg) { 1431 entry_joined = pg_help_data->num_of_pg - 2; 1432 entry_removed = entry_joined + 1; 1433 /* protect index */ 1434 entry_removed %= ARRAY_SIZE(pg_help_data->data); 1435 1436 pg_help_data->data[entry_joined].pg_priority |= 1437 pg_help_data->data[entry_removed].pg_priority; 1438 1439 pg_help_data->data[entry_joined].num_of_dif_pri += 1440 pg_help_data->data[entry_removed].num_of_dif_pri; 1441 1442 if (pg_help_data->data[entry_joined].pg == DCBX_STRICT_PRI_PG || 1443 pg_help_data->data[entry_removed].pg == DCBX_STRICT_PRI_PG) 1444 /* Entries joined strict priority rules */ 1445 pg_help_data->data[entry_joined].pg = 1446 DCBX_STRICT_PRI_PG; 1447 else { 1448 /* Entries can be joined join BW */ 1449 pg_joined = DCBX_PG_BW_GET(ets->pg_bw_tbl, 1450 pg_help_data->data[entry_joined].pg) + 1451 DCBX_PG_BW_GET(ets->pg_bw_tbl, 1452 pg_help_data->data[entry_removed].pg); 1453 1454 DCBX_PG_BW_SET(ets->pg_bw_tbl, 1455 pg_help_data->data[entry_joined].pg, pg_joined); 1456 } 1457 /* Joined the entries */ 1458 pg_help_data->num_of_pg--; 1459 } 1460 1461 return 0; 1462} 1463 1464static void bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params( 1465 struct bnx2x *bp, 1466 struct pg_help_data *pg_help_data, 1467 struct dcbx_ets_feature *ets, 1468 struct cos_help_data *cos_data, 1469 u32 *pg_pri_orginal_spread, 1470 u32 pri_join_mask, 1471 u8 num_of_dif_pri) 1472{ 1473 u8 i = 0; 1474 u32 pri_tested = 0; 1475 u8 entry = 0; 1476 u8 pg_entry = 0; 1477 bool b_found_strict = false; 1478 u8 num_of_pri = LLFC_DRIVER_TRAFFIC_TYPE_MAX; 1479 1480 cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0; 1481 /* If there are both pauseable and non-pauseable priorities, 1482 * the pauseable priorities go to the first queue and the 1483 * non-pauseable priorities go to the second queue. 1484 */ 1485 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) 1486 bnx2x_dcbx_separate_pauseable_from_non(bp, 1487 cos_data, pg_pri_orginal_spread, ets); 1488 else { 1489 /* If two BW-limited PG-s were combined to one queue, 1490 * the BW is their sum. 1491 * 1492 * If there are only pauseable priorities or only non-pauseable, 1493 * and there are both BW-limited and non-BW-limited PG-s, 1494 * the BW-limited PG/s go to one queue and the non-BW-limited 1495 * PG/s go to the second queue. 1496 * 1497 * If there are only pauseable priorities or only non-pauseable 1498 * and all are BW limited, then two priorities go to the first 1499 * queue and one priority goes to the second queue. 1500 * 1501 * We will join this two cases: 1502 * if one is BW limited it will go to the secoend queue 1503 * otherwise the last priority will get it 1504 */ 1505 1506 cos_data->data[0].pausable = cos_data->data[1].pausable = 1507 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask); 1508 1509 for (i = 0 ; i < num_of_pri; i++) { 1510 pri_tested = 1 << bp->dcbx_port_params. 1511 app.traffic_type_priority[i]; 1512 pg_entry = (u8)pg_pri_orginal_spread[bp-> 1513 dcbx_port_params.app.traffic_type_priority[i]]; 1514 1515 if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES) { 1516 entry = 0; 1517 1518 if (i == (num_of_pri-1) && 1519 false == b_found_strict) 1520 /* last entry will be handled separately 1521 * If no priority is strict than last 1522 * enty goes to last queue.*/ 1523 entry = 1; 1524 cos_data->data[entry].pri_join_mask |= 1525 pri_tested; 1526 bnx2x_dcbx_add_to_cos_bw(bp, 1527 &cos_data->data[entry], 1528 DCBX_PG_BW_GET(ets->pg_bw_tbl, 1529 pg_entry)); 1530 } else { 1531 b_found_strict = true; 1532 cos_data->data[1].pri_join_mask |= pri_tested; 1533 /* If we join a group and one is strict 1534 * than the bw rulls */ 1535 cos_data->data[1].strict = 1536 BNX2X_DCBX_STRICT_COS_HIGHEST; 1537 } 1538 } 1539 } 1540} 1541 1542 1543static void bnx2x_dcbx_2cos_limit_cee_fill_cos_params(struct bnx2x *bp, 1544 struct pg_help_data *help_data, 1545 struct dcbx_ets_feature *ets, 1546 struct cos_help_data *cos_data, 1547 u32 *pg_pri_orginal_spread, 1548 u32 pri_join_mask, 1549 u8 num_of_dif_pri) 1550{ 1551 1552 /* default E2 settings */ 1553 cos_data->num_of_cos = DCBX_COS_MAX_NUM_E2; 1554 1555 switch (help_data->num_of_pg) { 1556 case 1: 1557 bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params( 1558 bp, 1559 help_data, 1560 cos_data, 1561 pri_join_mask, 1562 num_of_dif_pri); 1563 break; 1564 case 2: 1565 bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params( 1566 bp, 1567 help_data, 1568 ets, 1569 cos_data, 1570 pg_pri_orginal_spread, 1571 pri_join_mask, 1572 num_of_dif_pri); 1573 break; 1574 1575 case 3: 1576 bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params( 1577 bp, 1578 help_data, 1579 ets, 1580 cos_data, 1581 pg_pri_orginal_spread, 1582 pri_join_mask, 1583 num_of_dif_pri); 1584 break; 1585 default: 1586 BNX2X_ERR("Wrong pg_help_data.num_of_pg\n"); 1587 bnx2x_dcbx_ets_disabled_entry_data(bp, 1588 cos_data, pri_join_mask); 1589 } 1590} 1591 1592static int bnx2x_dcbx_spread_strict_pri(struct bnx2x *bp, 1593 struct cos_help_data *cos_data, 1594 u8 entry, 1595 u8 num_spread_of_entries, 1596 u8 strict_app_pris) 1597{ 1598 u8 strict_pri = BNX2X_DCBX_STRICT_COS_HIGHEST; 1599 u8 num_of_app_pri = MAX_PFC_PRIORITIES; 1600 u8 app_pri_bit = 0; 1601 1602 while (num_spread_of_entries && num_of_app_pri > 0) { 1603 app_pri_bit = 1 << (num_of_app_pri - 1); 1604 if (app_pri_bit & strict_app_pris) { 1605 struct cos_entry_help_data *data = &cos_data-> 1606 data[entry]; 1607 num_spread_of_entries--; 1608 if (num_spread_of_entries == 0) { 1609 /* last entry needed put all the entries left */ 1610 data->cos_bw = DCBX_INVALID_COS_BW; 1611 data->strict = strict_pri; 1612 data->pri_join_mask = strict_app_pris; 1613 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp, 1614 data->pri_join_mask); 1615 } else { 1616 strict_app_pris &= ~app_pri_bit; 1617 1618 data->cos_bw = DCBX_INVALID_COS_BW; 1619 data->strict = strict_pri; 1620 data->pri_join_mask = app_pri_bit; 1621 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp, 1622 data->pri_join_mask); 1623 } 1624 1625 strict_pri = 1626 BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(strict_pri); 1627 entry++; 1628 } 1629 1630 num_of_app_pri--; 1631 } 1632 1633 if (num_spread_of_entries) 1634 return -EINVAL; 1635 1636 return 0; 1637} 1638 1639static u8 bnx2x_dcbx_cee_fill_strict_pri(struct bnx2x *bp, 1640 struct cos_help_data *cos_data, 1641 u8 entry, 1642 u8 num_spread_of_entries, 1643 u8 strict_app_pris) 1644{ 1645 1646 if (bnx2x_dcbx_spread_strict_pri(bp, cos_data, entry, 1647 num_spread_of_entries, 1648 strict_app_pris)) { 1649 struct cos_entry_help_data *data = &cos_data-> 1650 data[entry]; 1651 /* Fill BW entry */ 1652 data->cos_bw = DCBX_INVALID_COS_BW; 1653 data->strict = BNX2X_DCBX_STRICT_COS_HIGHEST; 1654 data->pri_join_mask = strict_app_pris; 1655 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp, 1656 data->pri_join_mask); 1657 return 1; 1658 } 1659 1660 return num_spread_of_entries; 1661} 1662 1663static void bnx2x_dcbx_cee_fill_cos_params(struct bnx2x *bp, 1664 struct pg_help_data *help_data, 1665 struct dcbx_ets_feature *ets, 1666 struct cos_help_data *cos_data, 1667 u32 pri_join_mask) 1668 1669{ 1670 u8 need_num_of_entries = 0; 1671 u8 i = 0; 1672 u8 entry = 0; 1673 1674 /* 1675 * if the number of requested PG-s in CEE is greater than 3 1676 * then the results are not determined since this is a violation 1677 * of the standard. 1678 */ 1679 if (help_data->num_of_pg > DCBX_COS_MAX_NUM_E3B0) { 1680 if (bnx2x_dcbx_join_pgs(bp, ets, help_data, 1681 DCBX_COS_MAX_NUM_E3B0)) { 1682 BNX2X_ERR("Unable to reduce the number of PGs -" 1683 "we will disables ETS\n"); 1684 bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data, 1685 pri_join_mask); 1686 return; 1687 } 1688 } 1689 1690 for (i = 0 ; i < help_data->num_of_pg; i++) { 1691 struct pg_entry_help_data *pg = &help_data->data[i]; 1692 if (pg->pg < DCBX_MAX_NUM_PG_BW_ENTRIES) { 1693 struct cos_entry_help_data *data = &cos_data-> 1694 data[entry]; 1695 /* Fill BW entry */ 1696 data->cos_bw = DCBX_PG_BW_GET(ets->pg_bw_tbl, pg->pg); 1697 data->strict = BNX2X_DCBX_STRICT_INVALID; 1698 data->pri_join_mask = pg->pg_priority; 1699 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp, 1700 data->pri_join_mask); 1701 1702 entry++; 1703 } else { 1704 need_num_of_entries = min_t(u8, 1705 (u8)pg->num_of_dif_pri, 1706 (u8)DCBX_COS_MAX_NUM_E3B0 - 1707 help_data->num_of_pg + 1); 1708 /* 1709 * If there are still VOQ-s which have no associated PG, 1710 * then associate these VOQ-s to PG15. These PG-s will 1711 * be used for SP between priorities on PG15. 1712 */ 1713 entry += bnx2x_dcbx_cee_fill_strict_pri(bp, cos_data, 1714 entry, need_num_of_entries, pg->pg_priority); 1715 } 1716 } 1717 1718 /* the entry will represent the number of COSes used */ 1719 cos_data->num_of_cos = entry; 1720} 1721static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp, 1722 struct pg_help_data *help_data, 1723 struct dcbx_ets_feature *ets, 1724 u32 *pg_pri_orginal_spread) 1725{ 1726 struct cos_help_data cos_data; 1727 u8 i = 0; 1728 u32 pri_join_mask = 0; 1729 u8 num_of_dif_pri = 0; 1730 1731 memset(&cos_data, 0, sizeof(cos_data)); 1732 1733 /* Validate the pg value */ 1734 for (i = 0; i < help_data->num_of_pg ; i++) { 1735 if (DCBX_STRICT_PRIORITY != help_data->data[i].pg && 1736 DCBX_MAX_NUM_PG_BW_ENTRIES <= help_data->data[i].pg) 1737 BNX2X_ERR("Invalid pg[%d] data %x\n", i, 1738 help_data->data[i].pg); 1739 pri_join_mask |= help_data->data[i].pg_priority; 1740 num_of_dif_pri += help_data->data[i].num_of_dif_pri; 1741 } 1742 1743 /* defaults */ 1744 cos_data.num_of_cos = 1; 1745 for (i = 0; i < ARRAY_SIZE(cos_data.data); i++) { 1746 cos_data.data[i].pri_join_mask = 0; 1747 cos_data.data[i].pausable = false; 1748 cos_data.data[i].strict = BNX2X_DCBX_STRICT_INVALID; 1749 cos_data.data[i].cos_bw = DCBX_INVALID_COS_BW; 1750 } 1751 1752 if (CHIP_IS_E3B0(bp)) 1753 bnx2x_dcbx_cee_fill_cos_params(bp, help_data, ets, 1754 &cos_data, pri_join_mask); 1755 else /* E2 + E3A0 */ 1756 bnx2x_dcbx_2cos_limit_cee_fill_cos_params(bp, 1757 help_data, ets, 1758 &cos_data, 1759 pg_pri_orginal_spread, 1760 pri_join_mask, 1761 num_of_dif_pri); 1762 1763 for (i = 0; i < cos_data.num_of_cos ; i++) { 1764 struct bnx2x_dcbx_cos_params *p = 1765 &bp->dcbx_port_params.ets.cos_params[i]; 1766 1767 p->strict = cos_data.data[i].strict; 1768 p->bw_tbl = cos_data.data[i].cos_bw; 1769 p->pri_bitmask = cos_data.data[i].pri_join_mask; 1770 p->pauseable = cos_data.data[i].pausable; 1771 1772 /* sanity */ 1773 if (p->bw_tbl != DCBX_INVALID_COS_BW || 1774 p->strict != BNX2X_DCBX_STRICT_INVALID) { 1775 if (p->pri_bitmask == 0) 1776 BNX2X_ERR("Invalid pri_bitmask for %d\n", i); 1777 1778 if (CHIP_IS_E2(bp) || CHIP_IS_E3A0(bp)) { 1779 1780 if (p->pauseable && 1781 DCBX_PFC_PRI_GET_NON_PAUSE(bp, 1782 p->pri_bitmask) != 0) 1783 BNX2X_ERR("Inconsistent config for " 1784 "pausable COS %d\n", i); 1785 1786 if (!p->pauseable && 1787 DCBX_PFC_PRI_GET_PAUSE(bp, 1788 p->pri_bitmask) != 0) 1789 BNX2X_ERR("Inconsistent config for " 1790 "nonpausable COS %d\n", i); 1791 } 1792 } 1793 1794 if (p->pauseable) 1795 DP(NETIF_MSG_LINK, "COS %d PAUSABLE prijoinmask 0x%x\n", 1796 i, cos_data.data[i].pri_join_mask); 1797 else 1798 DP(NETIF_MSG_LINK, "COS %d NONPAUSABLE prijoinmask " 1799 "0x%x\n", 1800 i, cos_data.data[i].pri_join_mask); 1801 } 1802 1803 bp->dcbx_port_params.ets.num_of_cos = cos_data.num_of_cos ; 1804} 1805 1806static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp, 1807 u32 *set_configuration_ets_pg, 1808 u32 *pri_pg_tbl) 1809{ 1810 int i; 1811 1812 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) { 1813 set_configuration_ets_pg[i] = DCBX_PRI_PG_GET(pri_pg_tbl, i); 1814 1815 DP(NETIF_MSG_LINK, "set_configuration_ets_pg[%d] = 0x%x\n", 1816 i, set_configuration_ets_pg[i]); 1817 } 1818} 1819 1820static void bnx2x_dcbx_fw_struct(struct bnx2x *bp, 1821 struct bnx2x_func_tx_start_params *pfc_fw_cfg) 1822{ 1823 u16 pri_bit = 0; 1824 u8 cos = 0, pri = 0; 1825 struct priority_cos *tt2cos; 1826 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority; 1827 1828 memset(pfc_fw_cfg, 0, sizeof(*pfc_fw_cfg)); 1829 1830 /* to disable DCB - the structure must be zeroed */ 1831 if (bp->dcbx_error & DCBX_REMOTE_MIB_ERROR) 1832 return; 1833 1834 /*shortcut*/ 1835 tt2cos = pfc_fw_cfg->traffic_type_to_priority_cos; 1836 1837 /* Fw version should be incremented each update */ 1838 pfc_fw_cfg->dcb_version = ++bp->dcb_version; 1839 pfc_fw_cfg->dcb_enabled = 1; 1840 1841 /* Fill priority parameters */ 1842 for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) { 1843 tt2cos[pri].priority = ttp[pri]; 1844 pri_bit = 1 << tt2cos[pri].priority; 1845 1846 /* Fill COS parameters based on COS calculated to 1847 * make it more general for future use */ 1848 for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++) 1849 if (bp->dcbx_port_params.ets.cos_params[cos]. 1850 pri_bitmask & pri_bit) 1851 tt2cos[pri].cos = cos; 1852 } 1853 1854 /* we never want the FW to add a 0 vlan tag */ 1855 pfc_fw_cfg->dont_add_pri_0_en = 1; 1856 1857 bnx2x_dcbx_print_cos_params(bp, pfc_fw_cfg); 1858} 1859 1860void bnx2x_dcbx_pmf_update(struct bnx2x *bp) 1861{ 1862 /* if we need to syncronize DCBX result from prev PMF 1863 * read it from shmem and update bp accordingly 1864 */ 1865 if (SHMEM2_HAS(bp, drv_flags) && 1866 GET_FLAGS(SHMEM2_RD(bp, drv_flags), DRV_FLAGS_DCB_CONFIGURED)) { 1867 /* Read neg results if dcbx is in the FW */ 1868 if (bnx2x_dcbx_read_shmem_neg_results(bp)) 1869 return; 1870 1871 bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat, 1872 bp->dcbx_error); 1873 bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat, 1874 bp->dcbx_error); 1875 } 1876} 1877 1878/* DCB netlink */ 1879#ifdef BCM_DCBNL 1880 1881#define BNX2X_DCBX_CAPS (DCB_CAP_DCBX_LLD_MANAGED | \ 1882 DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_STATIC) 1883 1884static inline bool bnx2x_dcbnl_set_valid(struct bnx2x *bp) 1885{ 1886 /* validate dcbnl call that may change HW state: 1887 * DCB is on and DCBX mode was SUCCESSFULLY set by the user. 1888 */ 1889 return bp->dcb_state && bp->dcbx_mode_uset; 1890} 1891 1892static u8 bnx2x_dcbnl_get_state(struct net_device *netdev) 1893{ 1894 struct bnx2x *bp = netdev_priv(netdev); 1895 DP(NETIF_MSG_LINK, "state = %d\n", bp->dcb_state); 1896 return bp->dcb_state; 1897} 1898 1899static u8 bnx2x_dcbnl_set_state(struct net_device *netdev, u8 state) 1900{ 1901 struct bnx2x *bp = netdev_priv(netdev); 1902 DP(NETIF_MSG_LINK, "state = %s\n", state ? "on" : "off"); 1903 1904 bnx2x_dcbx_set_state(bp, (state ? true : false), bp->dcbx_enabled); 1905 return 0; 1906} 1907 1908static void bnx2x_dcbnl_get_perm_hw_addr(struct net_device *netdev, 1909 u8 *perm_addr) 1910{ 1911 struct bnx2x *bp = netdev_priv(netdev); 1912 DP(NETIF_MSG_LINK, "GET-PERM-ADDR\n"); 1913 1914 /* first the HW mac address */ 1915 memcpy(perm_addr, netdev->dev_addr, netdev->addr_len); 1916 1917#ifdef BCM_CNIC 1918 /* second SAN address */ 1919 memcpy(perm_addr+netdev->addr_len, bp->fip_mac, netdev->addr_len); 1920#endif 1921} 1922 1923static void bnx2x_dcbnl_set_pg_tccfg_tx(struct net_device *netdev, int prio, 1924 u8 prio_type, u8 pgid, u8 bw_pct, 1925 u8 up_map) 1926{ 1927 struct bnx2x *bp = netdev_priv(netdev); 1928 1929 DP(NETIF_MSG_LINK, "prio[%d] = %d\n", prio, pgid); 1930 if (!bnx2x_dcbnl_set_valid(bp) || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES) 1931 return; 1932 1933 /** 1934 * bw_pct ingnored - band-width percentage devision between user 1935 * priorities within the same group is not 1936 * standard and hence not supported 1937 * 1938 * prio_type igonred - priority levels within the same group are not 1939 * standard and hence are not supported. According 1940 * to the standard pgid 15 is dedicated to strict 1941 * prioirty traffic (on the port level). 1942 * 1943 * up_map ignored 1944 */ 1945 1946 bp->dcbx_config_params.admin_configuration_ets_pg[prio] = pgid; 1947 bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1; 1948} 1949 1950static void bnx2x_dcbnl_set_pg_bwgcfg_tx(struct net_device *netdev, 1951 int pgid, u8 bw_pct) 1952{ 1953 struct bnx2x *bp = netdev_priv(netdev); 1954 DP(NETIF_MSG_LINK, "pgid[%d] = %d\n", pgid, bw_pct); 1955 1956 if (!bnx2x_dcbnl_set_valid(bp) || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES) 1957 return; 1958 1959 bp->dcbx_config_params.admin_configuration_bw_precentage[pgid] = bw_pct; 1960 bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1; 1961} 1962 1963static void bnx2x_dcbnl_set_pg_tccfg_rx(struct net_device *netdev, int prio, 1964 u8 prio_type, u8 pgid, u8 bw_pct, 1965 u8 up_map) 1966{ 1967 struct bnx2x *bp = netdev_priv(netdev); 1968 DP(NETIF_MSG_LINK, "Nothing to set; No RX support\n"); 1969} 1970 1971static void bnx2x_dcbnl_set_pg_bwgcfg_rx(struct net_device *netdev, 1972 int pgid, u8 bw_pct) 1973{ 1974 struct bnx2x *bp = netdev_priv(netdev); 1975 DP(NETIF_MSG_LINK, "Nothing to set; No RX support\n"); 1976} 1977 1978static void bnx2x_dcbnl_get_pg_tccfg_tx(struct net_device *netdev, int prio, 1979 u8 *prio_type, u8 *pgid, u8 *bw_pct, 1980 u8 *up_map) 1981{ 1982 struct bnx2x *bp = netdev_priv(netdev); 1983 DP(NETIF_MSG_LINK, "prio = %d\n", prio); 1984 1985 /** 1986 * bw_pct ingnored - band-width percentage devision between user 1987 * priorities within the same group is not 1988 * standard and hence not supported 1989 * 1990 * prio_type igonred - priority levels within the same group are not 1991 * standard and hence are not supported. According 1992 * to the standard pgid 15 is dedicated to strict 1993 * prioirty traffic (on the port level). 1994 * 1995 * up_map ignored 1996 */ 1997 *up_map = *bw_pct = *prio_type = *pgid = 0; 1998 1999 if (!bp->dcb_state || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES) 2000 return; 2001 2002 *pgid = DCBX_PRI_PG_GET(bp->dcbx_local_feat.ets.pri_pg_tbl, prio); 2003} 2004 2005static void bnx2x_dcbnl_get_pg_bwgcfg_tx(struct net_device *netdev, 2006 int pgid, u8 *bw_pct) 2007{ 2008 struct bnx2x *bp = netdev_priv(netdev); 2009 DP(NETIF_MSG_LINK, "pgid = %d\n", pgid); 2010 2011 *bw_pct = 0; 2012 2013 if (!bp->dcb_state || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES) 2014 return; 2015 2016 *bw_pct = DCBX_PG_BW_GET(bp->dcbx_local_feat.ets.pg_bw_tbl, pgid); 2017} 2018 2019static void bnx2x_dcbnl_get_pg_tccfg_rx(struct net_device *netdev, int prio, 2020 u8 *prio_type, u8 *pgid, u8 *bw_pct, 2021 u8 *up_map) 2022{ 2023 struct bnx2x *bp = netdev_priv(netdev); 2024 DP(NETIF_MSG_LINK, "Nothing to get; No RX support\n"); 2025 2026 *prio_type = *pgid = *bw_pct = *up_map = 0; 2027} 2028 2029static void bnx2x_dcbnl_get_pg_bwgcfg_rx(struct net_device *netdev, 2030 int pgid, u8 *bw_pct) 2031{ 2032 struct bnx2x *bp = netdev_priv(netdev); 2033 DP(NETIF_MSG_LINK, "Nothing to get; No RX support\n"); 2034 2035 *bw_pct = 0; 2036} 2037 2038static void bnx2x_dcbnl_set_pfc_cfg(struct net_device *netdev, int prio, 2039 u8 setting) 2040{ 2041 struct bnx2x *bp = netdev_priv(netdev); 2042 DP(NETIF_MSG_LINK, "prio[%d] = %d\n", prio, setting); 2043 2044 if (!bnx2x_dcbnl_set_valid(bp) || prio >= MAX_PFC_PRIORITIES) 2045 return; 2046 2047 bp->dcbx_config_params.admin_pfc_bitmap |= ((setting ? 1 : 0) << prio); 2048 2049 if (setting) 2050 bp->dcbx_config_params.admin_pfc_tx_enable = 1; 2051} 2052 2053static void bnx2x_dcbnl_get_pfc_cfg(struct net_device *netdev, int prio, 2054 u8 *setting) 2055{ 2056 struct bnx2x *bp = netdev_priv(netdev); 2057 DP(NETIF_MSG_LINK, "prio = %d\n", prio); 2058 2059 *setting = 0; 2060 2061 if (!bp->dcb_state || prio >= MAX_PFC_PRIORITIES) 2062 return; 2063 2064 *setting = (bp->dcbx_local_feat.pfc.pri_en_bitmap >> prio) & 0x1; 2065} 2066 2067static u8 bnx2x_dcbnl_set_all(struct net_device *netdev) 2068{ 2069 struct bnx2x *bp = netdev_priv(netdev); 2070 int rc = 0; 2071 2072 DP(NETIF_MSG_LINK, "SET-ALL\n"); 2073 2074 if (!bnx2x_dcbnl_set_valid(bp)) 2075 return 1; 2076 2077 if (bp->recovery_state != BNX2X_RECOVERY_DONE) { 2078 netdev_err(bp->dev, "Handling parity error recovery. " 2079 "Try again later\n"); 2080 return 1; 2081 } 2082 if (netif_running(bp->dev)) { 2083 bnx2x_nic_unload(bp, UNLOAD_NORMAL); 2084 rc = bnx2x_nic_load(bp, LOAD_NORMAL); 2085 } 2086 DP(NETIF_MSG_LINK, "set_dcbx_params done (%d)\n", rc); 2087 if (rc) 2088 return 1; 2089 2090 return 0; 2091} 2092 2093static u8 bnx2x_dcbnl_get_cap(struct net_device *netdev, int capid, u8 *cap) 2094{ 2095 struct bnx2x *bp = netdev_priv(netdev); 2096 u8 rval = 0; 2097 2098 if (bp->dcb_state) { 2099 switch (capid) { 2100 case DCB_CAP_ATTR_PG: 2101 *cap = true; 2102 break; 2103 case DCB_CAP_ATTR_PFC: 2104 *cap = true; 2105 break; 2106 case DCB_CAP_ATTR_UP2TC: 2107 *cap = false; 2108 break; 2109 case DCB_CAP_ATTR_PG_TCS: 2110 *cap = 0x80; /* 8 priorities for PGs */ 2111 break; 2112 case DCB_CAP_ATTR_PFC_TCS: 2113 *cap = 0x80; /* 8 priorities for PFC */ 2114 break; 2115 case DCB_CAP_ATTR_GSP: 2116 *cap = true; 2117 break; 2118 case DCB_CAP_ATTR_BCN: 2119 *cap = false; 2120 break; 2121 case DCB_CAP_ATTR_DCBX: 2122 *cap = BNX2X_DCBX_CAPS; 2123 default: 2124 rval = -EINVAL; 2125 break; 2126 } 2127 } else 2128 rval = -EINVAL; 2129 2130 DP(NETIF_MSG_LINK, "capid %d:%x\n", capid, *cap); 2131 return rval; 2132} 2133 2134static u8 bnx2x_dcbnl_get_numtcs(struct net_device *netdev, int tcid, u8 *num) 2135{ 2136 struct bnx2x *bp = netdev_priv(netdev); 2137 u8 rval = 0; 2138 2139 DP(NETIF_MSG_LINK, "tcid %d\n", tcid); 2140 2141 if (bp->dcb_state) { 2142 switch (tcid) { 2143 case DCB_NUMTCS_ATTR_PG: 2144 *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 : 2145 DCBX_COS_MAX_NUM_E2; 2146 break; 2147 case DCB_NUMTCS_ATTR_PFC: 2148 *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 : 2149 DCBX_COS_MAX_NUM_E2; 2150 break; 2151 default: 2152 rval = -EINVAL; 2153 break; 2154 } 2155 } else 2156 rval = -EINVAL; 2157 2158 return rval; 2159} 2160 2161static u8 bnx2x_dcbnl_set_numtcs(struct net_device *netdev, int tcid, u8 num) 2162{ 2163 struct bnx2x *bp = netdev_priv(netdev); 2164 DP(NETIF_MSG_LINK, "num tcs = %d; Not supported\n", num); 2165 return -EINVAL; 2166} 2167 2168static u8 bnx2x_dcbnl_get_pfc_state(struct net_device *netdev) 2169{ 2170 struct bnx2x *bp = netdev_priv(netdev); 2171 DP(NETIF_MSG_LINK, "state = %d\n", bp->dcbx_local_feat.pfc.enabled); 2172 2173 if (!bp->dcb_state) 2174 return 0; 2175 2176 return bp->dcbx_local_feat.pfc.enabled; 2177} 2178 2179static void bnx2x_dcbnl_set_pfc_state(struct net_device *netdev, u8 state) 2180{ 2181 struct bnx2x *bp = netdev_priv(netdev); 2182 DP(NETIF_MSG_LINK, "state = %s\n", state ? "on" : "off"); 2183 2184 if (!bnx2x_dcbnl_set_valid(bp)) 2185 return; 2186 2187 bp->dcbx_config_params.admin_pfc_tx_enable = 2188 bp->dcbx_config_params.admin_pfc_enable = (state ? 1 : 0); 2189} 2190 2191static void bnx2x_admin_app_set_ent( 2192 struct bnx2x_admin_priority_app_table *app_ent, 2193 u8 idtype, u16 idval, u8 up) 2194{ 2195 app_ent->valid = 1; 2196 2197 switch (idtype) { 2198 case DCB_APP_IDTYPE_ETHTYPE: 2199 app_ent->traffic_type = TRAFFIC_TYPE_ETH; 2200 break; 2201 case DCB_APP_IDTYPE_PORTNUM: 2202 app_ent->traffic_type = TRAFFIC_TYPE_PORT; 2203 break; 2204 default: 2205 break; /* never gets here */ 2206 } 2207 app_ent->app_id = idval; 2208 app_ent->priority = up; 2209} 2210 2211static bool bnx2x_admin_app_is_equal( 2212 struct bnx2x_admin_priority_app_table *app_ent, 2213 u8 idtype, u16 idval) 2214{ 2215 if (!app_ent->valid) 2216 return false; 2217 2218 switch (idtype) { 2219 case DCB_APP_IDTYPE_ETHTYPE: 2220 if (app_ent->traffic_type != TRAFFIC_TYPE_ETH) 2221 return false; 2222 break; 2223 case DCB_APP_IDTYPE_PORTNUM: 2224 if (app_ent->traffic_type != TRAFFIC_TYPE_PORT) 2225 return false; 2226 break; 2227 default: 2228 return false; 2229 } 2230 if (app_ent->app_id != idval) 2231 return false; 2232 2233 return true; 2234} 2235 2236static int bnx2x_set_admin_app_up(struct bnx2x *bp, u8 idtype, u16 idval, u8 up) 2237{ 2238 int i, ff; 2239 2240 /* iterate over the app entries looking for idtype and idval */ 2241 for (i = 0, ff = -1; i < 4; i++) { 2242 struct bnx2x_admin_priority_app_table *app_ent = 2243 &bp->dcbx_config_params.admin_priority_app_table[i]; 2244 if (bnx2x_admin_app_is_equal(app_ent, idtype, idval)) 2245 break; 2246 2247 if (ff < 0 && !app_ent->valid) 2248 ff = i; 2249 } 2250 if (i < 4) 2251 /* if found overwrite up */ 2252 bp->dcbx_config_params. 2253 admin_priority_app_table[i].priority = up; 2254 else if (ff >= 0) 2255 /* not found use first-free */ 2256 bnx2x_admin_app_set_ent( 2257 &bp->dcbx_config_params.admin_priority_app_table[ff], 2258 idtype, idval, up); 2259 else 2260 /* app table is full */ 2261 return -EBUSY; 2262 2263 /* up configured, if not 0 make sure feature is enabled */ 2264 if (up) 2265 bp->dcbx_config_params.admin_application_priority_tx_enable = 1; 2266 2267 return 0; 2268} 2269 2270static u8 bnx2x_dcbnl_set_app_up(struct net_device *netdev, u8 idtype, 2271 u16 idval, u8 up) 2272{ 2273 struct bnx2x *bp = netdev_priv(netdev); 2274 2275 DP(NETIF_MSG_LINK, "app_type %d, app_id %x, prio bitmap %d\n", 2276 idtype, idval, up); 2277 2278 if (!bnx2x_dcbnl_set_valid(bp)) 2279 return -EINVAL; 2280 2281 /* verify idtype */ 2282 switch (idtype) { 2283 case DCB_APP_IDTYPE_ETHTYPE: 2284 case DCB_APP_IDTYPE_PORTNUM: 2285 break; 2286 default: 2287 return -EINVAL; 2288 } 2289 return bnx2x_set_admin_app_up(bp, idtype, idval, up); 2290} 2291 2292static u8 bnx2x_dcbnl_get_dcbx(struct net_device *netdev) 2293{ 2294 struct bnx2x *bp = netdev_priv(netdev); 2295 u8 state; 2296 2297 state = DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_CEE; 2298 2299 if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF) 2300 state |= DCB_CAP_DCBX_STATIC; 2301 2302 return state; 2303} 2304 2305static u8 bnx2x_dcbnl_set_dcbx(struct net_device *netdev, u8 state) 2306{ 2307 struct bnx2x *bp = netdev_priv(netdev); 2308 DP(NETIF_MSG_LINK, "state = %02x\n", state); 2309 2310 /* set dcbx mode */ 2311 2312 if ((state & BNX2X_DCBX_CAPS) != state) { 2313 BNX2X_ERR("Requested DCBX mode %x is beyond advertised " 2314 "capabilities\n", state); 2315 return 1; 2316 } 2317 2318 if (bp->dcb_state != BNX2X_DCB_STATE_ON) { 2319 BNX2X_ERR("DCB turned off, DCBX configuration is invalid\n"); 2320 return 1; 2321 } 2322 2323 if (state & DCB_CAP_DCBX_STATIC) 2324 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_OFF; 2325 else 2326 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_ON; 2327 2328 bp->dcbx_mode_uset = true; 2329 return 0; 2330} 2331 2332static u8 bnx2x_dcbnl_get_featcfg(struct net_device *netdev, int featid, 2333 u8 *flags) 2334{ 2335 struct bnx2x *bp = netdev_priv(netdev); 2336 u8 rval = 0; 2337 2338 DP(NETIF_MSG_LINK, "featid %d\n", featid); 2339 2340 if (bp->dcb_state) { 2341 *flags = 0; 2342 switch (featid) { 2343 case DCB_FEATCFG_ATTR_PG: 2344 if (bp->dcbx_local_feat.ets.enabled) 2345 *flags |= DCB_FEATCFG_ENABLE; 2346 if (bp->dcbx_error & DCBX_LOCAL_ETS_ERROR) 2347 *flags |= DCB_FEATCFG_ERROR; 2348 break; 2349 case DCB_FEATCFG_ATTR_PFC: 2350 if (bp->dcbx_local_feat.pfc.enabled) 2351 *flags |= DCB_FEATCFG_ENABLE; 2352 if (bp->dcbx_error & (DCBX_LOCAL_PFC_ERROR | 2353 DCBX_LOCAL_PFC_MISMATCH)) 2354 *flags |= DCB_FEATCFG_ERROR; 2355 break; 2356 case DCB_FEATCFG_ATTR_APP: 2357 if (bp->dcbx_local_feat.app.enabled) 2358 *flags |= DCB_FEATCFG_ENABLE; 2359 if (bp->dcbx_error & (DCBX_LOCAL_APP_ERROR | 2360 DCBX_LOCAL_APP_MISMATCH)) 2361 *flags |= DCB_FEATCFG_ERROR; 2362 break; 2363 default: 2364 rval = -EINVAL; 2365 break; 2366 } 2367 } else 2368 rval = -EINVAL; 2369 2370 return rval; 2371} 2372 2373static u8 bnx2x_dcbnl_set_featcfg(struct net_device *netdev, int featid, 2374 u8 flags) 2375{ 2376 struct bnx2x *bp = netdev_priv(netdev); 2377 u8 rval = 0; 2378 2379 DP(NETIF_MSG_LINK, "featid = %d flags = %02x\n", featid, flags); 2380 2381 /* ignore the 'advertise' flag */ 2382 if (bnx2x_dcbnl_set_valid(bp)) { 2383 switch (featid) { 2384 case DCB_FEATCFG_ATTR_PG: 2385 bp->dcbx_config_params.admin_ets_enable = 2386 flags & DCB_FEATCFG_ENABLE ? 1 : 0; 2387 bp->dcbx_config_params.admin_ets_willing = 2388 flags & DCB_FEATCFG_WILLING ? 1 : 0; 2389 break; 2390 case DCB_FEATCFG_ATTR_PFC: 2391 bp->dcbx_config_params.admin_pfc_enable = 2392 flags & DCB_FEATCFG_ENABLE ? 1 : 0; 2393 bp->dcbx_config_params.admin_pfc_willing = 2394 flags & DCB_FEATCFG_WILLING ? 1 : 0; 2395 break; 2396 case DCB_FEATCFG_ATTR_APP: 2397 /* ignore enable, always enabled */ 2398 bp->dcbx_config_params.admin_app_priority_willing = 2399 flags & DCB_FEATCFG_WILLING ? 1 : 0; 2400 break; 2401 default: 2402 rval = -EINVAL; 2403 break; 2404 } 2405 } else 2406 rval = -EINVAL; 2407 2408 return rval; 2409} 2410 2411static int bnx2x_peer_appinfo(struct net_device *netdev, 2412 struct dcb_peer_app_info *info, u16* app_count) 2413{ 2414 int i; 2415 struct bnx2x *bp = netdev_priv(netdev); 2416 2417 DP(NETIF_MSG_LINK, "APP-INFO\n"); 2418 2419 info->willing = (bp->dcbx_remote_flags & DCBX_APP_REM_WILLING) ?: 0; 2420 info->error = (bp->dcbx_remote_flags & DCBX_APP_RX_ERROR) ?: 0; 2421 *app_count = 0; 2422 2423 for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) 2424 if (bp->dcbx_remote_feat.app.app_pri_tbl[i].appBitfield & 2425 DCBX_APP_ENTRY_VALID) 2426 (*app_count)++; 2427 return 0; 2428} 2429 2430static int bnx2x_peer_apptable(struct net_device *netdev, 2431 struct dcb_app *table) 2432{ 2433 int i, j; 2434 struct bnx2x *bp = netdev_priv(netdev); 2435 2436 DP(NETIF_MSG_LINK, "APP-TABLE\n"); 2437 2438 for (i = 0, j = 0; i < DCBX_MAX_APP_PROTOCOL; i++) { 2439 struct dcbx_app_priority_entry *ent = 2440 &bp->dcbx_remote_feat.app.app_pri_tbl[i]; 2441 2442 if (ent->appBitfield & DCBX_APP_ENTRY_VALID) { 2443 table[j].selector = bnx2x_dcbx_dcbnl_app_idtype(ent); 2444 table[j].priority = bnx2x_dcbx_dcbnl_app_up(ent); 2445 table[j++].protocol = ent->app_id; 2446 } 2447 } 2448 return 0; 2449} 2450 2451static int bnx2x_cee_peer_getpg(struct net_device *netdev, struct cee_pg *pg) 2452{ 2453 int i; 2454 struct bnx2x *bp = netdev_priv(netdev); 2455 2456 pg->willing = (bp->dcbx_remote_flags & DCBX_ETS_REM_WILLING) ?: 0; 2457 2458 for (i = 0; i < CEE_DCBX_MAX_PGS; i++) { 2459 pg->pg_bw[i] = 2460 DCBX_PG_BW_GET(bp->dcbx_remote_feat.ets.pg_bw_tbl, i); 2461 pg->prio_pg[i] = 2462 DCBX_PRI_PG_GET(bp->dcbx_remote_feat.ets.pri_pg_tbl, i); 2463 } 2464 return 0; 2465} 2466 2467static int bnx2x_cee_peer_getpfc(struct net_device *netdev, 2468 struct cee_pfc *pfc) 2469{ 2470 struct bnx2x *bp = netdev_priv(netdev); 2471 pfc->tcs_supported = bp->dcbx_remote_feat.pfc.pfc_caps; 2472 pfc->pfc_en = bp->dcbx_remote_feat.pfc.pri_en_bitmap; 2473 return 0; 2474} 2475 2476const struct dcbnl_rtnl_ops bnx2x_dcbnl_ops = { 2477 .getstate = bnx2x_dcbnl_get_state, 2478 .setstate = bnx2x_dcbnl_set_state, 2479 .getpermhwaddr = bnx2x_dcbnl_get_perm_hw_addr, 2480 .setpgtccfgtx = bnx2x_dcbnl_set_pg_tccfg_tx, 2481 .setpgbwgcfgtx = bnx2x_dcbnl_set_pg_bwgcfg_tx, 2482 .setpgtccfgrx = bnx2x_dcbnl_set_pg_tccfg_rx, 2483 .setpgbwgcfgrx = bnx2x_dcbnl_set_pg_bwgcfg_rx, 2484 .getpgtccfgtx = bnx2x_dcbnl_get_pg_tccfg_tx, 2485 .getpgbwgcfgtx = bnx2x_dcbnl_get_pg_bwgcfg_tx, 2486 .getpgtccfgrx = bnx2x_dcbnl_get_pg_tccfg_rx, 2487 .getpgbwgcfgrx = bnx2x_dcbnl_get_pg_bwgcfg_rx, 2488 .setpfccfg = bnx2x_dcbnl_set_pfc_cfg, 2489 .getpfccfg = bnx2x_dcbnl_get_pfc_cfg, 2490 .setall = bnx2x_dcbnl_set_all, 2491 .getcap = bnx2x_dcbnl_get_cap, 2492 .getnumtcs = bnx2x_dcbnl_get_numtcs, 2493 .setnumtcs = bnx2x_dcbnl_set_numtcs, 2494 .getpfcstate = bnx2x_dcbnl_get_pfc_state, 2495 .setpfcstate = bnx2x_dcbnl_set_pfc_state, 2496 .setapp = bnx2x_dcbnl_set_app_up, 2497 .getdcbx = bnx2x_dcbnl_get_dcbx, 2498 .setdcbx = bnx2x_dcbnl_set_dcbx, 2499 .getfeatcfg = bnx2x_dcbnl_get_featcfg, 2500 .setfeatcfg = bnx2x_dcbnl_set_featcfg, 2501 .peer_getappinfo = bnx2x_peer_appinfo, 2502 .peer_getapptable = bnx2x_peer_apptable, 2503 .cee_peer_getpg = bnx2x_cee_peer_getpg, 2504 .cee_peer_getpfc = bnx2x_cee_peer_getpfc, 2505}; 2506 2507#endif /* BCM_DCBNL */ 2508