1 /* bnx2x_dcb.c: Broadcom Everest network driver. 2 * 3 * Copyright 2009-2012 Broadcom Corporation 4 * 5 * Unless you and Broadcom execute a separate written software license 6 * agreement governing use of this software, this software is licensed to you 7 * under the terms of the GNU General Public License version 2, available 8 * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL"). 9 * 10 * Notwithstanding the above, under no circumstances may you combine this 11 * software in any way with any other Broadcom software provided under a 12 * license other than the GPL, without Broadcom's express prior written 13 * consent. 14 * 15 * Maintained by: Eilon Greenstein <eilong@broadcom.com> 16 * Written by: Dmitry Kravkov 17 * 18 */ 19 20 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 21 22 #include <linux/netdevice.h> 23 #include <linux/types.h> 24 #include <linux/errno.h> 25 #include <linux/rtnetlink.h> 26 #include <net/dcbnl.h> 27 28 #include "bnx2x.h" 29 #include "bnx2x_cmn.h" 30 #include "bnx2x_dcb.h" 31 32 /* forward declarations of dcbx related functions */ 33 static int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp); 34 static void bnx2x_pfc_set_pfc(struct bnx2x *bp); 35 static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp); 36 static int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp); 37 static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp, 38 u32 *set_configuration_ets_pg, 39 u32 *pri_pg_tbl); 40 static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp, 41 u32 *pg_pri_orginal_spread, 42 struct pg_help_data *help_data); 43 static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp, 44 struct pg_help_data *help_data, 45 struct dcbx_ets_feature *ets, 46 u32 *pg_pri_orginal_spread); 47 static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp, 48 struct cos_help_data *cos_data, 49 u32 *pg_pri_orginal_spread, 50 struct dcbx_ets_feature *ets); 51 static void bnx2x_dcbx_fw_struct(struct bnx2x *bp, 52 struct bnx2x_func_tx_start_params*); 53 54 /* helpers: read/write len bytes from addr into buff by REG_RD/REG_WR */ 55 static void bnx2x_read_data(struct bnx2x *bp, u32 *buff, 56 u32 addr, u32 len) 57 { 58 int i; 59 for (i = 0; i < len; i += 4, buff++) 60 *buff = REG_RD(bp, addr + i); 61 } 62 63 static void bnx2x_write_data(struct bnx2x *bp, u32 *buff, 64 u32 addr, u32 len) 65 { 66 int i; 67 for (i = 0; i < len; i += 4, buff++) 68 REG_WR(bp, addr + i, *buff); 69 } 70 71 static void bnx2x_pfc_set(struct bnx2x *bp) 72 { 73 struct bnx2x_nig_brb_pfc_port_params pfc_params = {0}; 74 u32 pri_bit, val = 0; 75 int i; 76 77 pfc_params.num_of_rx_cos_priority_mask = 78 bp->dcbx_port_params.ets.num_of_cos; 79 80 /* Tx COS configuration */ 81 for (i = 0; i < bp->dcbx_port_params.ets.num_of_cos; i++) 82 /* 83 * We configure only the pauseable bits (non pauseable aren't 84 * configured at all) it's done to avoid false pauses from 85 * network 86 */ 87 pfc_params.rx_cos_priority_mask[i] = 88 bp->dcbx_port_params.ets.cos_params[i].pri_bitmask 89 & DCBX_PFC_PRI_PAUSE_MASK(bp); 90 91 /* 92 * Rx COS configuration 93 * Changing PFC RX configuration . 94 * In RX COS0 will always be configured to lossy and COS1 to lossless 95 */ 96 for (i = 0 ; i < MAX_PFC_PRIORITIES ; i++) { 97 pri_bit = 1 << i; 98 99 if (pri_bit & DCBX_PFC_PRI_PAUSE_MASK(bp)) 100 val |= 1 << (i * 4); 101 } 102 103 pfc_params.pkt_priority_to_cos = val; 104 105 /* RX COS0 */ 106 pfc_params.llfc_low_priority_classes = 0; 107 /* RX COS1 */ 108 pfc_params.llfc_high_priority_classes = DCBX_PFC_PRI_PAUSE_MASK(bp); 109 110 /* BRB configuration */ 111 pfc_params.cos0_pauseable = false; 112 pfc_params.cos1_pauseable = true; 113 114 bnx2x_acquire_phy_lock(bp); 115 bp->link_params.feature_config_flags |= FEATURE_CONFIG_PFC_ENABLED; 116 bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &pfc_params); 117 bnx2x_release_phy_lock(bp); 118 } 119 120 static void bnx2x_pfc_clear(struct bnx2x *bp) 121 { 122 struct bnx2x_nig_brb_pfc_port_params nig_params = {0}; 123 nig_params.pause_enable = 1; 124 bnx2x_acquire_phy_lock(bp); 125 bp->link_params.feature_config_flags &= ~FEATURE_CONFIG_PFC_ENABLED; 126 bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &nig_params); 127 bnx2x_release_phy_lock(bp); 128 } 129 130 static void bnx2x_dump_dcbx_drv_param(struct bnx2x *bp, 131 struct dcbx_features *features, 132 u32 error) 133 { 134 u8 i = 0; 135 DP(NETIF_MSG_LINK, "local_mib.error %x\n", error); 136 137 /* PG */ 138 DP(NETIF_MSG_LINK, 139 "local_mib.features.ets.enabled %x\n", features->ets.enabled); 140 for (i = 0; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++) 141 DP(NETIF_MSG_LINK, 142 "local_mib.features.ets.pg_bw_tbl[%d] %d\n", i, 143 DCBX_PG_BW_GET(features->ets.pg_bw_tbl, i)); 144 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) 145 DP(NETIF_MSG_LINK, 146 "local_mib.features.ets.pri_pg_tbl[%d] %d\n", i, 147 DCBX_PRI_PG_GET(features->ets.pri_pg_tbl, i)); 148 149 /* pfc */ 150 DP(BNX2X_MSG_DCB, "dcbx_features.pfc.pri_en_bitmap %x\n", 151 features->pfc.pri_en_bitmap); 152 DP(BNX2X_MSG_DCB, "dcbx_features.pfc.pfc_caps %x\n", 153 features->pfc.pfc_caps); 154 DP(BNX2X_MSG_DCB, "dcbx_features.pfc.enabled %x\n", 155 features->pfc.enabled); 156 157 DP(BNX2X_MSG_DCB, "dcbx_features.app.default_pri %x\n", 158 features->app.default_pri); 159 DP(BNX2X_MSG_DCB, "dcbx_features.app.tc_supported %x\n", 160 features->app.tc_supported); 161 DP(BNX2X_MSG_DCB, "dcbx_features.app.enabled %x\n", 162 features->app.enabled); 163 for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) { 164 DP(BNX2X_MSG_DCB, 165 "dcbx_features.app.app_pri_tbl[%x].app_id %x\n", 166 i, features->app.app_pri_tbl[i].app_id); 167 DP(BNX2X_MSG_DCB, 168 "dcbx_features.app.app_pri_tbl[%x].pri_bitmap %x\n", 169 i, features->app.app_pri_tbl[i].pri_bitmap); 170 DP(BNX2X_MSG_DCB, 171 "dcbx_features.app.app_pri_tbl[%x].appBitfield %x\n", 172 i, features->app.app_pri_tbl[i].appBitfield); 173 } 174 } 175 176 static void bnx2x_dcbx_get_ap_priority(struct bnx2x *bp, 177 u8 pri_bitmap, 178 u8 llfc_traf_type) 179 { 180 u32 pri = MAX_PFC_PRIORITIES; 181 u32 index = MAX_PFC_PRIORITIES - 1; 182 u32 pri_mask; 183 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority; 184 185 /* Choose the highest priority */ 186 while ((MAX_PFC_PRIORITIES == pri) && (0 != index)) { 187 pri_mask = 1 << index; 188 if (GET_FLAGS(pri_bitmap, pri_mask)) 189 pri = index ; 190 index--; 191 } 192 193 if (pri < MAX_PFC_PRIORITIES) 194 ttp[llfc_traf_type] = max_t(u32, ttp[llfc_traf_type], pri); 195 } 196 197 static void bnx2x_dcbx_get_ap_feature(struct bnx2x *bp, 198 struct dcbx_app_priority_feature *app, 199 u32 error) { 200 u8 index; 201 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority; 202 203 if (GET_FLAGS(error, DCBX_LOCAL_APP_ERROR)) 204 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_APP_ERROR\n"); 205 206 if (GET_FLAGS(error, DCBX_LOCAL_APP_MISMATCH)) 207 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_APP_MISMATCH\n"); 208 209 if (GET_FLAGS(error, DCBX_REMOTE_APP_TLV_NOT_FOUND)) 210 DP(BNX2X_MSG_DCB, "DCBX_REMOTE_APP_TLV_NOT_FOUND\n"); 211 if (app->enabled && 212 !GET_FLAGS(error, DCBX_LOCAL_APP_ERROR | DCBX_LOCAL_APP_MISMATCH | 213 DCBX_REMOTE_APP_TLV_NOT_FOUND)) { 214 215 bp->dcbx_port_params.app.enabled = true; 216 217 for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++) 218 ttp[index] = 0; 219 220 if (app->default_pri < MAX_PFC_PRIORITIES) 221 ttp[LLFC_TRAFFIC_TYPE_NW] = app->default_pri; 222 223 for (index = 0 ; index < DCBX_MAX_APP_PROTOCOL; index++) { 224 struct dcbx_app_priority_entry *entry = 225 app->app_pri_tbl; 226 227 if (GET_FLAGS(entry[index].appBitfield, 228 DCBX_APP_SF_ETH_TYPE) && 229 ETH_TYPE_FCOE == entry[index].app_id) 230 bnx2x_dcbx_get_ap_priority(bp, 231 entry[index].pri_bitmap, 232 LLFC_TRAFFIC_TYPE_FCOE); 233 234 if (GET_FLAGS(entry[index].appBitfield, 235 DCBX_APP_SF_PORT) && 236 TCP_PORT_ISCSI == entry[index].app_id) 237 bnx2x_dcbx_get_ap_priority(bp, 238 entry[index].pri_bitmap, 239 LLFC_TRAFFIC_TYPE_ISCSI); 240 } 241 } else { 242 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_APP_DISABLED\n"); 243 bp->dcbx_port_params.app.enabled = false; 244 for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++) 245 ttp[index] = INVALID_TRAFFIC_TYPE_PRIORITY; 246 } 247 } 248 249 static void bnx2x_dcbx_get_ets_feature(struct bnx2x *bp, 250 struct dcbx_ets_feature *ets, 251 u32 error) { 252 int i = 0; 253 u32 pg_pri_orginal_spread[DCBX_MAX_NUM_PG_BW_ENTRIES] = {0}; 254 struct pg_help_data pg_help_data; 255 struct bnx2x_dcbx_cos_params *cos_params = 256 bp->dcbx_port_params.ets.cos_params; 257 258 memset(&pg_help_data, 0, sizeof(struct pg_help_data)); 259 260 261 if (GET_FLAGS(error, DCBX_LOCAL_ETS_ERROR)) 262 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_ERROR\n"); 263 264 if (GET_FLAGS(error, DCBX_REMOTE_ETS_TLV_NOT_FOUND)) 265 DP(BNX2X_MSG_DCB, "DCBX_REMOTE_ETS_TLV_NOT_FOUND\n"); 266 267 /* Clean up old settings of ets on COS */ 268 for (i = 0; i < ARRAY_SIZE(bp->dcbx_port_params.ets.cos_params) ; i++) { 269 cos_params[i].pauseable = false; 270 cos_params[i].strict = BNX2X_DCBX_STRICT_INVALID; 271 cos_params[i].bw_tbl = DCBX_INVALID_COS_BW; 272 cos_params[i].pri_bitmask = 0; 273 } 274 275 if (bp->dcbx_port_params.app.enabled && ets->enabled && 276 !GET_FLAGS(error, 277 DCBX_LOCAL_ETS_ERROR | DCBX_REMOTE_ETS_TLV_NOT_FOUND)) { 278 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_ENABLE\n"); 279 bp->dcbx_port_params.ets.enabled = true; 280 281 bnx2x_dcbx_get_ets_pri_pg_tbl(bp, 282 pg_pri_orginal_spread, 283 ets->pri_pg_tbl); 284 285 bnx2x_dcbx_get_num_pg_traf_type(bp, 286 pg_pri_orginal_spread, 287 &pg_help_data); 288 289 bnx2x_dcbx_fill_cos_params(bp, &pg_help_data, 290 ets, pg_pri_orginal_spread); 291 292 } else { 293 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_DISABLED\n"); 294 bp->dcbx_port_params.ets.enabled = false; 295 ets->pri_pg_tbl[0] = 0; 296 297 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES ; i++) 298 DCBX_PG_BW_SET(ets->pg_bw_tbl, i, 1); 299 } 300 } 301 302 static void bnx2x_dcbx_get_pfc_feature(struct bnx2x *bp, 303 struct dcbx_pfc_feature *pfc, u32 error) 304 { 305 306 if (GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR)) 307 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_PFC_ERROR\n"); 308 309 if (GET_FLAGS(error, DCBX_REMOTE_PFC_TLV_NOT_FOUND)) 310 DP(BNX2X_MSG_DCB, "DCBX_REMOTE_PFC_TLV_NOT_FOUND\n"); 311 if (bp->dcbx_port_params.app.enabled && pfc->enabled && 312 !GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR | DCBX_LOCAL_PFC_MISMATCH | 313 DCBX_REMOTE_PFC_TLV_NOT_FOUND)) { 314 bp->dcbx_port_params.pfc.enabled = true; 315 bp->dcbx_port_params.pfc.priority_non_pauseable_mask = 316 ~(pfc->pri_en_bitmap); 317 } else { 318 DP(BNX2X_MSG_DCB, "DCBX_LOCAL_PFC_DISABLED\n"); 319 bp->dcbx_port_params.pfc.enabled = false; 320 bp->dcbx_port_params.pfc.priority_non_pauseable_mask = 0; 321 } 322 } 323 324 /* maps unmapped priorities to to the same COS as L2 */ 325 static void bnx2x_dcbx_map_nw(struct bnx2x *bp) 326 { 327 int i; 328 u32 unmapped = (1 << MAX_PFC_PRIORITIES) - 1; /* all ones */ 329 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority; 330 u32 nw_prio = 1 << ttp[LLFC_TRAFFIC_TYPE_NW]; 331 struct bnx2x_dcbx_cos_params *cos_params = 332 bp->dcbx_port_params.ets.cos_params; 333 334 /* get unmapped priorities by clearing mapped bits */ 335 for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++) 336 unmapped &= ~(1 << ttp[i]); 337 338 /* find cos for nw prio and extend it with unmapped */ 339 for (i = 0; i < ARRAY_SIZE(bp->dcbx_port_params.ets.cos_params); i++) { 340 if (cos_params[i].pri_bitmask & nw_prio) { 341 /* extend the bitmask with unmapped */ 342 DP(BNX2X_MSG_DCB, 343 "cos %d extended with 0x%08x\n", i, unmapped); 344 cos_params[i].pri_bitmask |= unmapped; 345 break; 346 } 347 } 348 } 349 350 static void bnx2x_get_dcbx_drv_param(struct bnx2x *bp, 351 struct dcbx_features *features, 352 u32 error) 353 { 354 bnx2x_dcbx_get_ap_feature(bp, &features->app, error); 355 356 bnx2x_dcbx_get_pfc_feature(bp, &features->pfc, error); 357 358 bnx2x_dcbx_get_ets_feature(bp, &features->ets, error); 359 360 bnx2x_dcbx_map_nw(bp); 361 } 362 363 #define DCBX_LOCAL_MIB_MAX_TRY_READ (100) 364 static int bnx2x_dcbx_read_mib(struct bnx2x *bp, 365 u32 *base_mib_addr, 366 u32 offset, 367 int read_mib_type) 368 { 369 int max_try_read = 0; 370 u32 mib_size, prefix_seq_num, suffix_seq_num; 371 struct lldp_remote_mib *remote_mib ; 372 struct lldp_local_mib *local_mib; 373 374 375 switch (read_mib_type) { 376 case DCBX_READ_LOCAL_MIB: 377 mib_size = sizeof(struct lldp_local_mib); 378 break; 379 case DCBX_READ_REMOTE_MIB: 380 mib_size = sizeof(struct lldp_remote_mib); 381 break; 382 default: 383 return 1; /*error*/ 384 } 385 386 offset += BP_PORT(bp) * mib_size; 387 388 do { 389 bnx2x_read_data(bp, base_mib_addr, offset, mib_size); 390 391 max_try_read++; 392 393 switch (read_mib_type) { 394 case DCBX_READ_LOCAL_MIB: 395 local_mib = (struct lldp_local_mib *) base_mib_addr; 396 prefix_seq_num = local_mib->prefix_seq_num; 397 suffix_seq_num = local_mib->suffix_seq_num; 398 break; 399 case DCBX_READ_REMOTE_MIB: 400 remote_mib = (struct lldp_remote_mib *) base_mib_addr; 401 prefix_seq_num = remote_mib->prefix_seq_num; 402 suffix_seq_num = remote_mib->suffix_seq_num; 403 break; 404 default: 405 return 1; /*error*/ 406 } 407 } while ((prefix_seq_num != suffix_seq_num) && 408 (max_try_read < DCBX_LOCAL_MIB_MAX_TRY_READ)); 409 410 if (max_try_read >= DCBX_LOCAL_MIB_MAX_TRY_READ) { 411 BNX2X_ERR("MIB could not be read\n"); 412 return 1; 413 } 414 415 return 0; 416 } 417 418 static void bnx2x_pfc_set_pfc(struct bnx2x *bp) 419 { 420 if (bp->dcbx_port_params.pfc.enabled && 421 !(bp->dcbx_error & DCBX_REMOTE_MIB_ERROR)) 422 /* 423 * 1. Fills up common PFC structures if required 424 * 2. Configure NIG, MAC and BRB via the elink 425 */ 426 bnx2x_pfc_set(bp); 427 else 428 bnx2x_pfc_clear(bp); 429 } 430 431 static int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp) 432 { 433 struct bnx2x_func_state_params func_params = {NULL}; 434 435 func_params.f_obj = &bp->func_obj; 436 func_params.cmd = BNX2X_F_CMD_TX_STOP; 437 438 DP(BNX2X_MSG_DCB, "STOP TRAFFIC\n"); 439 return bnx2x_func_state_change(bp, &func_params); 440 } 441 442 static int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp) 443 { 444 struct bnx2x_func_state_params func_params = {NULL}; 445 struct bnx2x_func_tx_start_params *tx_params = 446 &func_params.params.tx_start; 447 448 func_params.f_obj = &bp->func_obj; 449 func_params.cmd = BNX2X_F_CMD_TX_START; 450 451 bnx2x_dcbx_fw_struct(bp, tx_params); 452 453 DP(BNX2X_MSG_DCB, "START TRAFFIC\n"); 454 return bnx2x_func_state_change(bp, &func_params); 455 } 456 457 static void bnx2x_dcbx_2cos_limit_update_ets_config(struct bnx2x *bp) 458 { 459 struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets); 460 int rc = 0; 461 462 if (ets->num_of_cos == 0 || ets->num_of_cos > DCBX_COS_MAX_NUM_E2) { 463 BNX2X_ERR("Illegal number of COSes %d\n", ets->num_of_cos); 464 return; 465 } 466 467 /* valid COS entries */ 468 if (ets->num_of_cos == 1) /* no ETS */ 469 return; 470 471 /* sanity */ 472 if (((BNX2X_DCBX_STRICT_INVALID == ets->cos_params[0].strict) && 473 (DCBX_INVALID_COS_BW == ets->cos_params[0].bw_tbl)) || 474 ((BNX2X_DCBX_STRICT_INVALID == ets->cos_params[1].strict) && 475 (DCBX_INVALID_COS_BW == ets->cos_params[1].bw_tbl))) { 476 BNX2X_ERR("all COS should have at least bw_limit or strict" 477 "ets->cos_params[0].strict= %x" 478 "ets->cos_params[0].bw_tbl= %x" 479 "ets->cos_params[1].strict= %x" 480 "ets->cos_params[1].bw_tbl= %x", 481 ets->cos_params[0].strict, 482 ets->cos_params[0].bw_tbl, 483 ets->cos_params[1].strict, 484 ets->cos_params[1].bw_tbl); 485 return; 486 } 487 /* If we join a group and there is bw_tbl and strict then bw rules */ 488 if ((DCBX_INVALID_COS_BW != ets->cos_params[0].bw_tbl) && 489 (DCBX_INVALID_COS_BW != ets->cos_params[1].bw_tbl)) { 490 u32 bw_tbl_0 = ets->cos_params[0].bw_tbl; 491 u32 bw_tbl_1 = ets->cos_params[1].bw_tbl; 492 /* Do not allow 0-100 configuration 493 * since PBF does not support it 494 * force 1-99 instead 495 */ 496 if (bw_tbl_0 == 0) { 497 bw_tbl_0 = 1; 498 bw_tbl_1 = 99; 499 } else if (bw_tbl_1 == 0) { 500 bw_tbl_1 = 1; 501 bw_tbl_0 = 99; 502 } 503 504 bnx2x_ets_bw_limit(&bp->link_params, bw_tbl_0, bw_tbl_1); 505 } else { 506 if (ets->cos_params[0].strict == BNX2X_DCBX_STRICT_COS_HIGHEST) 507 rc = bnx2x_ets_strict(&bp->link_params, 0); 508 else if (ets->cos_params[1].strict 509 == BNX2X_DCBX_STRICT_COS_HIGHEST) 510 rc = bnx2x_ets_strict(&bp->link_params, 1); 511 if (rc) 512 BNX2X_ERR("update_ets_params failed\n"); 513 } 514 } 515 516 /* 517 * In E3B0 the configuration may have more than 2 COS. 518 */ 519 static void bnx2x_dcbx_update_ets_config(struct bnx2x *bp) 520 { 521 struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets); 522 struct bnx2x_ets_params ets_params = { 0 }; 523 u8 i; 524 525 ets_params.num_of_cos = ets->num_of_cos; 526 527 for (i = 0; i < ets->num_of_cos; i++) { 528 /* COS is SP */ 529 if (ets->cos_params[i].strict != BNX2X_DCBX_STRICT_INVALID) { 530 if (ets->cos_params[i].bw_tbl != DCBX_INVALID_COS_BW) { 531 BNX2X_ERR("COS can't be not BW and not SP\n"); 532 return; 533 } 534 535 ets_params.cos[i].state = bnx2x_cos_state_strict; 536 ets_params.cos[i].params.sp_params.pri = 537 ets->cos_params[i].strict; 538 } else { /* COS is BW */ 539 if (ets->cos_params[i].bw_tbl == DCBX_INVALID_COS_BW) { 540 BNX2X_ERR("COS can't be not BW and not SP\n"); 541 return; 542 } 543 ets_params.cos[i].state = bnx2x_cos_state_bw; 544 ets_params.cos[i].params.bw_params.bw = 545 (u8)ets->cos_params[i].bw_tbl; 546 } 547 } 548 549 /* Configure the ETS in HW */ 550 if (bnx2x_ets_e3b0_config(&bp->link_params, &bp->link_vars, 551 &ets_params)) { 552 BNX2X_ERR("bnx2x_ets_e3b0_config failed\n"); 553 bnx2x_ets_disabled(&bp->link_params, &bp->link_vars); 554 } 555 } 556 557 static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp) 558 { 559 bnx2x_ets_disabled(&bp->link_params, &bp->link_vars); 560 561 if (!bp->dcbx_port_params.ets.enabled || 562 (bp->dcbx_error & DCBX_REMOTE_MIB_ERROR)) 563 return; 564 565 if (CHIP_IS_E3B0(bp)) 566 bnx2x_dcbx_update_ets_config(bp); 567 else 568 bnx2x_dcbx_2cos_limit_update_ets_config(bp); 569 } 570 571 #ifdef BCM_DCBNL 572 static int bnx2x_dcbx_read_shmem_remote_mib(struct bnx2x *bp) 573 { 574 struct lldp_remote_mib remote_mib = {0}; 575 u32 dcbx_remote_mib_offset = SHMEM2_RD(bp, dcbx_remote_mib_offset); 576 int rc; 577 578 DP(BNX2X_MSG_DCB, "dcbx_remote_mib_offset 0x%x\n", 579 dcbx_remote_mib_offset); 580 581 if (SHMEM_DCBX_REMOTE_MIB_NONE == dcbx_remote_mib_offset) { 582 BNX2X_ERR("FW doesn't support dcbx_remote_mib_offset\n"); 583 return -EINVAL; 584 } 585 586 rc = bnx2x_dcbx_read_mib(bp, (u32 *)&remote_mib, dcbx_remote_mib_offset, 587 DCBX_READ_REMOTE_MIB); 588 589 if (rc) { 590 BNX2X_ERR("Faild to read remote mib from FW\n"); 591 return rc; 592 } 593 594 /* save features and flags */ 595 bp->dcbx_remote_feat = remote_mib.features; 596 bp->dcbx_remote_flags = remote_mib.flags; 597 return 0; 598 } 599 #endif 600 601 static int bnx2x_dcbx_read_shmem_neg_results(struct bnx2x *bp) 602 { 603 struct lldp_local_mib local_mib = {0}; 604 u32 dcbx_neg_res_offset = SHMEM2_RD(bp, dcbx_neg_res_offset); 605 int rc; 606 607 DP(BNX2X_MSG_DCB, "dcbx_neg_res_offset 0x%x\n", dcbx_neg_res_offset); 608 609 if (SHMEM_DCBX_NEG_RES_NONE == dcbx_neg_res_offset) { 610 BNX2X_ERR("FW doesn't support dcbx_neg_res_offset\n"); 611 return -EINVAL; 612 } 613 614 rc = bnx2x_dcbx_read_mib(bp, (u32 *)&local_mib, dcbx_neg_res_offset, 615 DCBX_READ_LOCAL_MIB); 616 617 if (rc) { 618 BNX2X_ERR("Faild to read local mib from FW\n"); 619 return rc; 620 } 621 622 /* save features and error */ 623 bp->dcbx_local_feat = local_mib.features; 624 bp->dcbx_error = local_mib.error; 625 return 0; 626 } 627 628 629 #ifdef BCM_DCBNL 630 static inline 631 u8 bnx2x_dcbx_dcbnl_app_up(struct dcbx_app_priority_entry *ent) 632 { 633 u8 pri; 634 635 /* Choose the highest priority */ 636 for (pri = MAX_PFC_PRIORITIES - 1; pri > 0; pri--) 637 if (ent->pri_bitmap & (1 << pri)) 638 break; 639 return pri; 640 } 641 642 static inline 643 u8 bnx2x_dcbx_dcbnl_app_idtype(struct dcbx_app_priority_entry *ent) 644 { 645 return ((ent->appBitfield & DCBX_APP_ENTRY_SF_MASK) == 646 DCBX_APP_SF_PORT) ? DCB_APP_IDTYPE_PORTNUM : 647 DCB_APP_IDTYPE_ETHTYPE; 648 } 649 650 int bnx2x_dcbnl_update_applist(struct bnx2x *bp, bool delall) 651 { 652 int i, err = 0; 653 654 for (i = 0; i < DCBX_MAX_APP_PROTOCOL && err == 0; i++) { 655 struct dcbx_app_priority_entry *ent = 656 &bp->dcbx_local_feat.app.app_pri_tbl[i]; 657 658 if (ent->appBitfield & DCBX_APP_ENTRY_VALID) { 659 u8 up = bnx2x_dcbx_dcbnl_app_up(ent); 660 661 /* avoid invalid user-priority */ 662 if (up) { 663 struct dcb_app app; 664 app.selector = bnx2x_dcbx_dcbnl_app_idtype(ent); 665 app.protocol = ent->app_id; 666 app.priority = delall ? 0 : up; 667 err = dcb_setapp(bp->dev, &app); 668 } 669 } 670 } 671 return err; 672 } 673 #endif 674 675 static inline void bnx2x_dcbx_update_tc_mapping(struct bnx2x *bp) 676 { 677 u8 prio, cos; 678 for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++) { 679 for (prio = 0; prio < BNX2X_MAX_PRIORITY; prio++) { 680 if (bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask 681 & (1 << prio)) { 682 bp->prio_to_cos[prio] = cos; 683 DP(BNX2X_MSG_DCB, 684 "tx_mapping %d --> %d\n", prio, cos); 685 } 686 } 687 } 688 689 /* setup tc must be called under rtnl lock, but we can't take it here 690 * as we are handling an attetntion on a work queue which must be 691 * flushed at some rtnl-locked contexts (e.g. if down) 692 */ 693 if (!test_and_set_bit(BNX2X_SP_RTNL_SETUP_TC, &bp->sp_rtnl_state)) 694 schedule_delayed_work(&bp->sp_rtnl_task, 0); 695 } 696 697 void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state) 698 { 699 switch (state) { 700 case BNX2X_DCBX_STATE_NEG_RECEIVED: 701 { 702 DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_NEG_RECEIVED\n"); 703 #ifdef BCM_DCBNL 704 /** 705 * Delete app tlvs from dcbnl before reading new 706 * negotiation results 707 */ 708 bnx2x_dcbnl_update_applist(bp, true); 709 710 /* Read rmeote mib if dcbx is in the FW */ 711 if (bnx2x_dcbx_read_shmem_remote_mib(bp)) 712 return; 713 #endif 714 /* Read neg results if dcbx is in the FW */ 715 if (bnx2x_dcbx_read_shmem_neg_results(bp)) 716 return; 717 718 bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat, 719 bp->dcbx_error); 720 721 bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat, 722 bp->dcbx_error); 723 724 /* mark DCBX result for PMF migration */ 725 bnx2x_update_drv_flags(bp, 726 1 << DRV_FLAGS_DCB_CONFIGURED, 727 1); 728 #ifdef BCM_DCBNL 729 /* 730 * Add new app tlvs to dcbnl 731 */ 732 bnx2x_dcbnl_update_applist(bp, false); 733 #endif 734 /* 735 * reconfigure the netdevice with the results of the new 736 * dcbx negotiation. 737 */ 738 bnx2x_dcbx_update_tc_mapping(bp); 739 740 /* 741 * allow other funtions to update their netdevices 742 * accordingly 743 */ 744 if (IS_MF(bp)) 745 bnx2x_link_sync_notify(bp); 746 747 bnx2x_dcbx_stop_hw_tx(bp); 748 749 return; 750 } 751 case BNX2X_DCBX_STATE_TX_PAUSED: 752 DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_TX_PAUSED\n"); 753 bnx2x_pfc_set_pfc(bp); 754 755 bnx2x_dcbx_update_ets_params(bp); 756 bnx2x_dcbx_resume_hw_tx(bp); 757 758 return; 759 case BNX2X_DCBX_STATE_TX_RELEASED: 760 DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_TX_RELEASED\n"); 761 bnx2x_fw_command(bp, DRV_MSG_CODE_DCBX_PMF_DRV_OK, 0); 762 #ifdef BCM_DCBNL 763 /* 764 * Send a notification for the new negotiated parameters 765 */ 766 dcbnl_cee_notify(bp->dev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0); 767 #endif 768 return; 769 default: 770 BNX2X_ERR("Unknown DCBX_STATE\n"); 771 } 772 } 773 774 #define LLDP_ADMIN_MIB_OFFSET(bp) (PORT_MAX*sizeof(struct lldp_params) + \ 775 BP_PORT(bp)*sizeof(struct lldp_admin_mib)) 776 777 static void bnx2x_dcbx_admin_mib_updated_params(struct bnx2x *bp, 778 u32 dcbx_lldp_params_offset) 779 { 780 struct lldp_admin_mib admin_mib; 781 u32 i, other_traf_type = PREDEFINED_APP_IDX_MAX, traf_type = 0; 782 u32 offset = dcbx_lldp_params_offset + LLDP_ADMIN_MIB_OFFSET(bp); 783 784 /*shortcuts*/ 785 struct dcbx_features *af = &admin_mib.features; 786 struct bnx2x_config_dcbx_params *dp = &bp->dcbx_config_params; 787 788 memset(&admin_mib, 0, sizeof(struct lldp_admin_mib)); 789 790 /* Read the data first */ 791 bnx2x_read_data(bp, (u32 *)&admin_mib, offset, 792 sizeof(struct lldp_admin_mib)); 793 794 if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON) 795 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED); 796 else 797 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED); 798 799 if (dp->overwrite_settings == BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE) { 800 801 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_CEE_VERSION_MASK); 802 admin_mib.ver_cfg_flags |= 803 (dp->admin_dcbx_version << DCBX_CEE_VERSION_SHIFT) & 804 DCBX_CEE_VERSION_MASK; 805 806 af->ets.enabled = (u8)dp->admin_ets_enable; 807 808 af->pfc.enabled = (u8)dp->admin_pfc_enable; 809 810 /* FOR IEEE dp->admin_tc_supported_tx_enable */ 811 if (dp->admin_ets_configuration_tx_enable) 812 SET_FLAGS(admin_mib.ver_cfg_flags, 813 DCBX_ETS_CONFIG_TX_ENABLED); 814 else 815 RESET_FLAGS(admin_mib.ver_cfg_flags, 816 DCBX_ETS_CONFIG_TX_ENABLED); 817 /* For IEEE admin_ets_recommendation_tx_enable */ 818 if (dp->admin_pfc_tx_enable) 819 SET_FLAGS(admin_mib.ver_cfg_flags, 820 DCBX_PFC_CONFIG_TX_ENABLED); 821 else 822 RESET_FLAGS(admin_mib.ver_cfg_flags, 823 DCBX_PFC_CONFIG_TX_ENABLED); 824 825 if (dp->admin_application_priority_tx_enable) 826 SET_FLAGS(admin_mib.ver_cfg_flags, 827 DCBX_APP_CONFIG_TX_ENABLED); 828 else 829 RESET_FLAGS(admin_mib.ver_cfg_flags, 830 DCBX_APP_CONFIG_TX_ENABLED); 831 832 if (dp->admin_ets_willing) 833 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING); 834 else 835 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING); 836 /* For IEEE admin_ets_reco_valid */ 837 if (dp->admin_pfc_willing) 838 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING); 839 else 840 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING); 841 842 if (dp->admin_app_priority_willing) 843 SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING); 844 else 845 RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING); 846 847 for (i = 0 ; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++) { 848 DCBX_PG_BW_SET(af->ets.pg_bw_tbl, i, 849 (u8)dp->admin_configuration_bw_precentage[i]); 850 851 DP(BNX2X_MSG_DCB, "pg_bw_tbl[%d] = %02x\n", 852 i, DCBX_PG_BW_GET(af->ets.pg_bw_tbl, i)); 853 } 854 855 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) { 856 DCBX_PRI_PG_SET(af->ets.pri_pg_tbl, i, 857 (u8)dp->admin_configuration_ets_pg[i]); 858 859 DP(BNX2X_MSG_DCB, "pri_pg_tbl[%d] = %02x\n", 860 i, DCBX_PRI_PG_GET(af->ets.pri_pg_tbl, i)); 861 } 862 863 /*For IEEE admin_recommendation_bw_precentage 864 *For IEEE admin_recommendation_ets_pg */ 865 af->pfc.pri_en_bitmap = (u8)dp->admin_pfc_bitmap; 866 for (i = 0; i < DCBX_CONFIG_MAX_APP_PROTOCOL; i++) { 867 if (dp->admin_priority_app_table[i].valid) { 868 struct bnx2x_admin_priority_app_table *table = 869 dp->admin_priority_app_table; 870 if ((ETH_TYPE_FCOE == table[i].app_id) && 871 (TRAFFIC_TYPE_ETH == table[i].traffic_type)) 872 traf_type = FCOE_APP_IDX; 873 else if ((TCP_PORT_ISCSI == table[i].app_id) && 874 (TRAFFIC_TYPE_PORT == table[i].traffic_type)) 875 traf_type = ISCSI_APP_IDX; 876 else 877 traf_type = other_traf_type++; 878 879 af->app.app_pri_tbl[traf_type].app_id = 880 table[i].app_id; 881 882 af->app.app_pri_tbl[traf_type].pri_bitmap = 883 (u8)(1 << table[i].priority); 884 885 af->app.app_pri_tbl[traf_type].appBitfield = 886 (DCBX_APP_ENTRY_VALID); 887 888 af->app.app_pri_tbl[traf_type].appBitfield |= 889 (TRAFFIC_TYPE_ETH == table[i].traffic_type) ? 890 DCBX_APP_SF_ETH_TYPE : DCBX_APP_SF_PORT; 891 } 892 } 893 894 af->app.default_pri = (u8)dp->admin_default_priority; 895 896 } 897 898 /* Write the data. */ 899 bnx2x_write_data(bp, (u32 *)&admin_mib, offset, 900 sizeof(struct lldp_admin_mib)); 901 902 } 903 904 void bnx2x_dcbx_set_state(struct bnx2x *bp, bool dcb_on, u32 dcbx_enabled) 905 { 906 if (!CHIP_IS_E1x(bp)) { 907 bp->dcb_state = dcb_on; 908 bp->dcbx_enabled = dcbx_enabled; 909 } else { 910 bp->dcb_state = false; 911 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_INVALID; 912 } 913 DP(BNX2X_MSG_DCB, "DCB state [%s:%s]\n", 914 dcb_on ? "ON" : "OFF", 915 dcbx_enabled == BNX2X_DCBX_ENABLED_OFF ? "user-mode" : 916 dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF ? "on-chip static" : 917 dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON ? 918 "on-chip with negotiation" : "invalid"); 919 } 920 921 void bnx2x_dcbx_init_params(struct bnx2x *bp) 922 { 923 bp->dcbx_config_params.admin_dcbx_version = 0x0; /* 0 - CEE; 1 - IEEE */ 924 bp->dcbx_config_params.admin_ets_willing = 1; 925 bp->dcbx_config_params.admin_pfc_willing = 1; 926 bp->dcbx_config_params.overwrite_settings = 1; 927 bp->dcbx_config_params.admin_ets_enable = 1; 928 bp->dcbx_config_params.admin_pfc_enable = 1; 929 bp->dcbx_config_params.admin_tc_supported_tx_enable = 1; 930 bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1; 931 bp->dcbx_config_params.admin_pfc_tx_enable = 1; 932 bp->dcbx_config_params.admin_application_priority_tx_enable = 1; 933 bp->dcbx_config_params.admin_ets_reco_valid = 1; 934 bp->dcbx_config_params.admin_app_priority_willing = 1; 935 bp->dcbx_config_params.admin_configuration_bw_precentage[0] = 100; 936 bp->dcbx_config_params.admin_configuration_bw_precentage[1] = 0; 937 bp->dcbx_config_params.admin_configuration_bw_precentage[2] = 0; 938 bp->dcbx_config_params.admin_configuration_bw_precentage[3] = 0; 939 bp->dcbx_config_params.admin_configuration_bw_precentage[4] = 0; 940 bp->dcbx_config_params.admin_configuration_bw_precentage[5] = 0; 941 bp->dcbx_config_params.admin_configuration_bw_precentage[6] = 0; 942 bp->dcbx_config_params.admin_configuration_bw_precentage[7] = 0; 943 bp->dcbx_config_params.admin_configuration_ets_pg[0] = 0; 944 bp->dcbx_config_params.admin_configuration_ets_pg[1] = 0; 945 bp->dcbx_config_params.admin_configuration_ets_pg[2] = 0; 946 bp->dcbx_config_params.admin_configuration_ets_pg[3] = 0; 947 bp->dcbx_config_params.admin_configuration_ets_pg[4] = 0; 948 bp->dcbx_config_params.admin_configuration_ets_pg[5] = 0; 949 bp->dcbx_config_params.admin_configuration_ets_pg[6] = 0; 950 bp->dcbx_config_params.admin_configuration_ets_pg[7] = 0; 951 bp->dcbx_config_params.admin_recommendation_bw_precentage[0] = 100; 952 bp->dcbx_config_params.admin_recommendation_bw_precentage[1] = 0; 953 bp->dcbx_config_params.admin_recommendation_bw_precentage[2] = 0; 954 bp->dcbx_config_params.admin_recommendation_bw_precentage[3] = 0; 955 bp->dcbx_config_params.admin_recommendation_bw_precentage[4] = 0; 956 bp->dcbx_config_params.admin_recommendation_bw_precentage[5] = 0; 957 bp->dcbx_config_params.admin_recommendation_bw_precentage[6] = 0; 958 bp->dcbx_config_params.admin_recommendation_bw_precentage[7] = 0; 959 bp->dcbx_config_params.admin_recommendation_ets_pg[0] = 0; 960 bp->dcbx_config_params.admin_recommendation_ets_pg[1] = 1; 961 bp->dcbx_config_params.admin_recommendation_ets_pg[2] = 2; 962 bp->dcbx_config_params.admin_recommendation_ets_pg[3] = 3; 963 bp->dcbx_config_params.admin_recommendation_ets_pg[4] = 4; 964 bp->dcbx_config_params.admin_recommendation_ets_pg[5] = 5; 965 bp->dcbx_config_params.admin_recommendation_ets_pg[6] = 6; 966 bp->dcbx_config_params.admin_recommendation_ets_pg[7] = 7; 967 bp->dcbx_config_params.admin_pfc_bitmap = 0x0; 968 bp->dcbx_config_params.admin_priority_app_table[0].valid = 0; 969 bp->dcbx_config_params.admin_priority_app_table[1].valid = 0; 970 bp->dcbx_config_params.admin_priority_app_table[2].valid = 0; 971 bp->dcbx_config_params.admin_priority_app_table[3].valid = 0; 972 bp->dcbx_config_params.admin_default_priority = 0; 973 } 974 975 void bnx2x_dcbx_init(struct bnx2x *bp) 976 { 977 u32 dcbx_lldp_params_offset = SHMEM_LLDP_DCBX_PARAMS_NONE; 978 979 if (bp->dcbx_enabled <= 0) 980 return; 981 982 /* validate: 983 * chip of good for dcbx version, 984 * dcb is wanted 985 * the function is pmf 986 * shmem2 contains DCBX support fields 987 */ 988 DP(BNX2X_MSG_DCB, "dcb_state %d bp->port.pmf %d\n", 989 bp->dcb_state, bp->port.pmf); 990 991 if (bp->dcb_state == BNX2X_DCB_STATE_ON && bp->port.pmf && 992 SHMEM2_HAS(bp, dcbx_lldp_params_offset)) { 993 dcbx_lldp_params_offset = 994 SHMEM2_RD(bp, dcbx_lldp_params_offset); 995 996 DP(BNX2X_MSG_DCB, "dcbx_lldp_params_offset 0x%x\n", 997 dcbx_lldp_params_offset); 998 999 bnx2x_update_drv_flags(bp, 1 << DRV_FLAGS_DCB_CONFIGURED, 0); 1000 1001 if (SHMEM_LLDP_DCBX_PARAMS_NONE != dcbx_lldp_params_offset) { 1002 bnx2x_dcbx_admin_mib_updated_params(bp, 1003 dcbx_lldp_params_offset); 1004 1005 /* Let HW start negotiation */ 1006 bnx2x_fw_command(bp, 1007 DRV_MSG_CODE_DCBX_ADMIN_PMF_MSG, 0); 1008 } 1009 } 1010 } 1011 static void 1012 bnx2x_dcbx_print_cos_params(struct bnx2x *bp, 1013 struct bnx2x_func_tx_start_params *pfc_fw_cfg) 1014 { 1015 u8 pri = 0; 1016 u8 cos = 0; 1017 1018 DP(BNX2X_MSG_DCB, 1019 "pfc_fw_cfg->dcb_version %x\n", pfc_fw_cfg->dcb_version); 1020 DP(BNX2X_MSG_DCB, 1021 "pdev->params.dcbx_port_params.pfc.priority_non_pauseable_mask %x\n", 1022 bp->dcbx_port_params.pfc.priority_non_pauseable_mask); 1023 1024 for (cos = 0 ; cos < bp->dcbx_port_params.ets.num_of_cos ; cos++) { 1025 DP(BNX2X_MSG_DCB, 1026 "pdev->params.dcbx_port_params.ets.cos_params[%d].pri_bitmask %x\n", 1027 cos, bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask); 1028 1029 DP(BNX2X_MSG_DCB, 1030 "pdev->params.dcbx_port_params.ets.cos_params[%d].bw_tbl %x\n", 1031 cos, bp->dcbx_port_params.ets.cos_params[cos].bw_tbl); 1032 1033 DP(BNX2X_MSG_DCB, 1034 "pdev->params.dcbx_port_params.ets.cos_params[%d].strict %x\n", 1035 cos, bp->dcbx_port_params.ets.cos_params[cos].strict); 1036 1037 DP(BNX2X_MSG_DCB, 1038 "pdev->params.dcbx_port_params.ets.cos_params[%d].pauseable %x\n", 1039 cos, bp->dcbx_port_params.ets.cos_params[cos].pauseable); 1040 } 1041 1042 for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) { 1043 DP(BNX2X_MSG_DCB, 1044 "pfc_fw_cfg->traffic_type_to_priority_cos[%d].priority %x\n", 1045 pri, pfc_fw_cfg->traffic_type_to_priority_cos[pri].priority); 1046 1047 DP(BNX2X_MSG_DCB, 1048 "pfc_fw_cfg->traffic_type_to_priority_cos[%d].cos %x\n", 1049 pri, pfc_fw_cfg->traffic_type_to_priority_cos[pri].cos); 1050 } 1051 } 1052 1053 /* fills help_data according to pg_info */ 1054 static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp, 1055 u32 *pg_pri_orginal_spread, 1056 struct pg_help_data *help_data) 1057 { 1058 bool pg_found = false; 1059 u32 i, traf_type, add_traf_type, add_pg; 1060 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority; 1061 struct pg_entry_help_data *data = help_data->data; /*shotcut*/ 1062 1063 /* Set to invalid */ 1064 for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++) 1065 data[i].pg = DCBX_ILLEGAL_PG; 1066 1067 for (add_traf_type = 0; 1068 add_traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX; add_traf_type++) { 1069 pg_found = false; 1070 if (ttp[add_traf_type] < MAX_PFC_PRIORITIES) { 1071 add_pg = (u8)pg_pri_orginal_spread[ttp[add_traf_type]]; 1072 for (traf_type = 0; 1073 traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX; 1074 traf_type++) { 1075 if (data[traf_type].pg == add_pg) { 1076 if (!(data[traf_type].pg_priority & 1077 (1 << ttp[add_traf_type]))) 1078 data[traf_type]. 1079 num_of_dif_pri++; 1080 data[traf_type].pg_priority |= 1081 (1 << ttp[add_traf_type]); 1082 pg_found = true; 1083 break; 1084 } 1085 } 1086 if (false == pg_found) { 1087 data[help_data->num_of_pg].pg = add_pg; 1088 data[help_data->num_of_pg].pg_priority = 1089 (1 << ttp[add_traf_type]); 1090 data[help_data->num_of_pg].num_of_dif_pri = 1; 1091 help_data->num_of_pg++; 1092 } 1093 } 1094 DP(BNX2X_MSG_DCB, 1095 "add_traf_type %d pg_found %s num_of_pg %d\n", 1096 add_traf_type, (false == pg_found) ? "NO" : "YES", 1097 help_data->num_of_pg); 1098 } 1099 } 1100 1101 static void bnx2x_dcbx_ets_disabled_entry_data(struct bnx2x *bp, 1102 struct cos_help_data *cos_data, 1103 u32 pri_join_mask) 1104 { 1105 /* Only one priority than only one COS */ 1106 cos_data->data[0].pausable = 1107 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask); 1108 cos_data->data[0].pri_join_mask = pri_join_mask; 1109 cos_data->data[0].cos_bw = 100; 1110 cos_data->num_of_cos = 1; 1111 } 1112 1113 static inline void bnx2x_dcbx_add_to_cos_bw(struct bnx2x *bp, 1114 struct cos_entry_help_data *data, 1115 u8 pg_bw) 1116 { 1117 if (data->cos_bw == DCBX_INVALID_COS_BW) 1118 data->cos_bw = pg_bw; 1119 else 1120 data->cos_bw += pg_bw; 1121 } 1122 1123 static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp, 1124 struct cos_help_data *cos_data, 1125 u32 *pg_pri_orginal_spread, 1126 struct dcbx_ets_feature *ets) 1127 { 1128 u32 pri_tested = 0; 1129 u8 i = 0; 1130 u8 entry = 0; 1131 u8 pg_entry = 0; 1132 u8 num_of_pri = LLFC_DRIVER_TRAFFIC_TYPE_MAX; 1133 1134 cos_data->data[0].pausable = true; 1135 cos_data->data[1].pausable = false; 1136 cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0; 1137 1138 for (i = 0 ; i < num_of_pri ; i++) { 1139 pri_tested = 1 << bp->dcbx_port_params. 1140 app.traffic_type_priority[i]; 1141 1142 if (pri_tested & DCBX_PFC_PRI_NON_PAUSE_MASK(bp)) { 1143 cos_data->data[1].pri_join_mask |= pri_tested; 1144 entry = 1; 1145 } else { 1146 cos_data->data[0].pri_join_mask |= pri_tested; 1147 entry = 0; 1148 } 1149 pg_entry = (u8)pg_pri_orginal_spread[bp->dcbx_port_params. 1150 app.traffic_type_priority[i]]; 1151 /* There can be only one strict pg */ 1152 if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES) 1153 bnx2x_dcbx_add_to_cos_bw(bp, &cos_data->data[entry], 1154 DCBX_PG_BW_GET(ets->pg_bw_tbl, pg_entry)); 1155 else 1156 /* If we join a group and one is strict 1157 * than the bw rulls */ 1158 cos_data->data[entry].strict = 1159 BNX2X_DCBX_STRICT_COS_HIGHEST; 1160 } 1161 if ((0 == cos_data->data[0].pri_join_mask) && 1162 (0 == cos_data->data[1].pri_join_mask)) 1163 BNX2X_ERR("dcbx error: Both groups must have priorities\n"); 1164 } 1165 1166 1167 #ifndef POWER_OF_2 1168 #define POWER_OF_2(x) ((0 != x) && (0 == (x & (x-1)))) 1169 #endif 1170 1171 static void bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params(struct bnx2x *bp, 1172 struct pg_help_data *pg_help_data, 1173 struct cos_help_data *cos_data, 1174 u32 pri_join_mask, 1175 u8 num_of_dif_pri) 1176 { 1177 u8 i = 0; 1178 u32 pri_tested = 0; 1179 u32 pri_mask_without_pri = 0; 1180 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority; 1181 /*debug*/ 1182 if (num_of_dif_pri == 1) { 1183 bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data, pri_join_mask); 1184 return; 1185 } 1186 /* single priority group */ 1187 if (pg_help_data->data[0].pg < DCBX_MAX_NUM_PG_BW_ENTRIES) { 1188 /* If there are both pauseable and non-pauseable priorities, 1189 * the pauseable priorities go to the first queue and 1190 * the non-pauseable priorities go to the second queue. 1191 */ 1192 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) { 1193 /* Pauseable */ 1194 cos_data->data[0].pausable = true; 1195 /* Non pauseable.*/ 1196 cos_data->data[1].pausable = false; 1197 1198 if (2 == num_of_dif_pri) { 1199 cos_data->data[0].cos_bw = 50; 1200 cos_data->data[1].cos_bw = 50; 1201 } 1202 1203 if (3 == num_of_dif_pri) { 1204 if (POWER_OF_2(DCBX_PFC_PRI_GET_PAUSE(bp, 1205 pri_join_mask))) { 1206 cos_data->data[0].cos_bw = 33; 1207 cos_data->data[1].cos_bw = 67; 1208 } else { 1209 cos_data->data[0].cos_bw = 67; 1210 cos_data->data[1].cos_bw = 33; 1211 } 1212 } 1213 1214 } else if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask)) { 1215 /* If there are only pauseable priorities, 1216 * then one/two priorities go to the first queue 1217 * and one priority goes to the second queue. 1218 */ 1219 if (2 == num_of_dif_pri) { 1220 cos_data->data[0].cos_bw = 50; 1221 cos_data->data[1].cos_bw = 50; 1222 } else { 1223 cos_data->data[0].cos_bw = 67; 1224 cos_data->data[1].cos_bw = 33; 1225 } 1226 cos_data->data[1].pausable = true; 1227 cos_data->data[0].pausable = true; 1228 /* All priorities except FCOE */ 1229 cos_data->data[0].pri_join_mask = (pri_join_mask & 1230 ((u8)~(1 << ttp[LLFC_TRAFFIC_TYPE_FCOE]))); 1231 /* Only FCOE priority.*/ 1232 cos_data->data[1].pri_join_mask = 1233 (1 << ttp[LLFC_TRAFFIC_TYPE_FCOE]); 1234 } else 1235 /* If there are only non-pauseable priorities, 1236 * they will all go to the same queue. 1237 */ 1238 bnx2x_dcbx_ets_disabled_entry_data(bp, 1239 cos_data, pri_join_mask); 1240 } else { 1241 /* priority group which is not BW limited (PG#15):*/ 1242 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) { 1243 /* If there are both pauseable and non-pauseable 1244 * priorities, the pauseable priorities go to the first 1245 * queue and the non-pauseable priorities 1246 * go to the second queue. 1247 */ 1248 if (DCBX_PFC_PRI_GET_PAUSE(bp, pri_join_mask) > 1249 DCBX_PFC_PRI_GET_NON_PAUSE(bp, pri_join_mask)) { 1250 cos_data->data[0].strict = 1251 BNX2X_DCBX_STRICT_COS_HIGHEST; 1252 cos_data->data[1].strict = 1253 BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI( 1254 BNX2X_DCBX_STRICT_COS_HIGHEST); 1255 } else { 1256 cos_data->data[0].strict = 1257 BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI( 1258 BNX2X_DCBX_STRICT_COS_HIGHEST); 1259 cos_data->data[1].strict = 1260 BNX2X_DCBX_STRICT_COS_HIGHEST; 1261 } 1262 /* Pauseable */ 1263 cos_data->data[0].pausable = true; 1264 /* Non pause-able.*/ 1265 cos_data->data[1].pausable = false; 1266 } else { 1267 /* If there are only pauseable priorities or 1268 * only non-pauseable,* the lower priorities go 1269 * to the first queue and the higherpriorities go 1270 * to the second queue. 1271 */ 1272 cos_data->data[0].pausable = 1273 cos_data->data[1].pausable = 1274 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask); 1275 1276 for (i = 0 ; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++) { 1277 pri_tested = 1 << bp->dcbx_port_params. 1278 app.traffic_type_priority[i]; 1279 /* Remove priority tested */ 1280 pri_mask_without_pri = 1281 (pri_join_mask & ((u8)(~pri_tested))); 1282 if (pri_mask_without_pri < pri_tested) 1283 break; 1284 } 1285 1286 if (i == LLFC_DRIVER_TRAFFIC_TYPE_MAX) 1287 BNX2X_ERR("Invalid value for pri_join_mask - could not find a priority\n"); 1288 1289 cos_data->data[0].pri_join_mask = pri_mask_without_pri; 1290 cos_data->data[1].pri_join_mask = pri_tested; 1291 /* Both queues are strict priority, 1292 * and that with the highest priority 1293 * gets the highest strict priority in the arbiter. 1294 */ 1295 cos_data->data[0].strict = 1296 BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI( 1297 BNX2X_DCBX_STRICT_COS_HIGHEST); 1298 cos_data->data[1].strict = 1299 BNX2X_DCBX_STRICT_COS_HIGHEST; 1300 } 1301 } 1302 } 1303 1304 static void bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params( 1305 struct bnx2x *bp, 1306 struct pg_help_data *pg_help_data, 1307 struct dcbx_ets_feature *ets, 1308 struct cos_help_data *cos_data, 1309 u32 *pg_pri_orginal_spread, 1310 u32 pri_join_mask, 1311 u8 num_of_dif_pri) 1312 { 1313 u8 i = 0; 1314 u8 pg[DCBX_COS_MAX_NUM_E2] = { 0 }; 1315 1316 /* If there are both pauseable and non-pauseable priorities, 1317 * the pauseable priorities go to the first queue and 1318 * the non-pauseable priorities go to the second queue. 1319 */ 1320 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) { 1321 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, 1322 pg_help_data->data[0].pg_priority) || 1323 IS_DCBX_PFC_PRI_MIX_PAUSE(bp, 1324 pg_help_data->data[1].pg_priority)) { 1325 /* If one PG contains both pauseable and 1326 * non-pauseable priorities then ETS is disabled. 1327 */ 1328 bnx2x_dcbx_separate_pauseable_from_non(bp, cos_data, 1329 pg_pri_orginal_spread, ets); 1330 bp->dcbx_port_params.ets.enabled = false; 1331 return; 1332 } 1333 1334 /* Pauseable */ 1335 cos_data->data[0].pausable = true; 1336 /* Non pauseable. */ 1337 cos_data->data[1].pausable = false; 1338 if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, 1339 pg_help_data->data[0].pg_priority)) { 1340 /* 0 is pauseable */ 1341 cos_data->data[0].pri_join_mask = 1342 pg_help_data->data[0].pg_priority; 1343 pg[0] = pg_help_data->data[0].pg; 1344 cos_data->data[1].pri_join_mask = 1345 pg_help_data->data[1].pg_priority; 1346 pg[1] = pg_help_data->data[1].pg; 1347 } else {/* 1 is pauseable */ 1348 cos_data->data[0].pri_join_mask = 1349 pg_help_data->data[1].pg_priority; 1350 pg[0] = pg_help_data->data[1].pg; 1351 cos_data->data[1].pri_join_mask = 1352 pg_help_data->data[0].pg_priority; 1353 pg[1] = pg_help_data->data[0].pg; 1354 } 1355 } else { 1356 /* If there are only pauseable priorities or 1357 * only non-pauseable, each PG goes to a queue. 1358 */ 1359 cos_data->data[0].pausable = cos_data->data[1].pausable = 1360 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask); 1361 cos_data->data[0].pri_join_mask = 1362 pg_help_data->data[0].pg_priority; 1363 pg[0] = pg_help_data->data[0].pg; 1364 cos_data->data[1].pri_join_mask = 1365 pg_help_data->data[1].pg_priority; 1366 pg[1] = pg_help_data->data[1].pg; 1367 } 1368 1369 /* There can be only one strict pg */ 1370 for (i = 0 ; i < ARRAY_SIZE(pg); i++) { 1371 if (pg[i] < DCBX_MAX_NUM_PG_BW_ENTRIES) 1372 cos_data->data[i].cos_bw = 1373 DCBX_PG_BW_GET(ets->pg_bw_tbl, pg[i]); 1374 else 1375 cos_data->data[i].strict = 1376 BNX2X_DCBX_STRICT_COS_HIGHEST; 1377 } 1378 } 1379 1380 static int bnx2x_dcbx_join_pgs( 1381 struct bnx2x *bp, 1382 struct dcbx_ets_feature *ets, 1383 struct pg_help_data *pg_help_data, 1384 u8 required_num_of_pg) 1385 { 1386 u8 entry_joined = pg_help_data->num_of_pg - 1; 1387 u8 entry_removed = entry_joined + 1; 1388 u8 pg_joined = 0; 1389 1390 if (required_num_of_pg == 0 || ARRAY_SIZE(pg_help_data->data) 1391 <= pg_help_data->num_of_pg) { 1392 1393 BNX2X_ERR("required_num_of_pg can't be zero\n"); 1394 return -EINVAL; 1395 } 1396 1397 while (required_num_of_pg < pg_help_data->num_of_pg) { 1398 entry_joined = pg_help_data->num_of_pg - 2; 1399 entry_removed = entry_joined + 1; 1400 /* protect index */ 1401 entry_removed %= ARRAY_SIZE(pg_help_data->data); 1402 1403 pg_help_data->data[entry_joined].pg_priority |= 1404 pg_help_data->data[entry_removed].pg_priority; 1405 1406 pg_help_data->data[entry_joined].num_of_dif_pri += 1407 pg_help_data->data[entry_removed].num_of_dif_pri; 1408 1409 if (pg_help_data->data[entry_joined].pg == DCBX_STRICT_PRI_PG || 1410 pg_help_data->data[entry_removed].pg == DCBX_STRICT_PRI_PG) 1411 /* Entries joined strict priority rules */ 1412 pg_help_data->data[entry_joined].pg = 1413 DCBX_STRICT_PRI_PG; 1414 else { 1415 /* Entries can be joined join BW */ 1416 pg_joined = DCBX_PG_BW_GET(ets->pg_bw_tbl, 1417 pg_help_data->data[entry_joined].pg) + 1418 DCBX_PG_BW_GET(ets->pg_bw_tbl, 1419 pg_help_data->data[entry_removed].pg); 1420 1421 DCBX_PG_BW_SET(ets->pg_bw_tbl, 1422 pg_help_data->data[entry_joined].pg, pg_joined); 1423 } 1424 /* Joined the entries */ 1425 pg_help_data->num_of_pg--; 1426 } 1427 1428 return 0; 1429 } 1430 1431 static void bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params( 1432 struct bnx2x *bp, 1433 struct pg_help_data *pg_help_data, 1434 struct dcbx_ets_feature *ets, 1435 struct cos_help_data *cos_data, 1436 u32 *pg_pri_orginal_spread, 1437 u32 pri_join_mask, 1438 u8 num_of_dif_pri) 1439 { 1440 u8 i = 0; 1441 u32 pri_tested = 0; 1442 u8 entry = 0; 1443 u8 pg_entry = 0; 1444 bool b_found_strict = false; 1445 u8 num_of_pri = LLFC_DRIVER_TRAFFIC_TYPE_MAX; 1446 1447 cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0; 1448 /* If there are both pauseable and non-pauseable priorities, 1449 * the pauseable priorities go to the first queue and the 1450 * non-pauseable priorities go to the second queue. 1451 */ 1452 if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) 1453 bnx2x_dcbx_separate_pauseable_from_non(bp, 1454 cos_data, pg_pri_orginal_spread, ets); 1455 else { 1456 /* If two BW-limited PG-s were combined to one queue, 1457 * the BW is their sum. 1458 * 1459 * If there are only pauseable priorities or only non-pauseable, 1460 * and there are both BW-limited and non-BW-limited PG-s, 1461 * the BW-limited PG/s go to one queue and the non-BW-limited 1462 * PG/s go to the second queue. 1463 * 1464 * If there are only pauseable priorities or only non-pauseable 1465 * and all are BW limited, then two priorities go to the first 1466 * queue and one priority goes to the second queue. 1467 * 1468 * We will join this two cases: 1469 * if one is BW limited it will go to the secoend queue 1470 * otherwise the last priority will get it 1471 */ 1472 1473 cos_data->data[0].pausable = cos_data->data[1].pausable = 1474 IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask); 1475 1476 for (i = 0 ; i < num_of_pri; i++) { 1477 pri_tested = 1 << bp->dcbx_port_params. 1478 app.traffic_type_priority[i]; 1479 pg_entry = (u8)pg_pri_orginal_spread[bp-> 1480 dcbx_port_params.app.traffic_type_priority[i]]; 1481 1482 if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES) { 1483 entry = 0; 1484 1485 if (i == (num_of_pri-1) && 1486 false == b_found_strict) 1487 /* last entry will be handled separately 1488 * If no priority is strict than last 1489 * enty goes to last queue.*/ 1490 entry = 1; 1491 cos_data->data[entry].pri_join_mask |= 1492 pri_tested; 1493 bnx2x_dcbx_add_to_cos_bw(bp, 1494 &cos_data->data[entry], 1495 DCBX_PG_BW_GET(ets->pg_bw_tbl, 1496 pg_entry)); 1497 } else { 1498 b_found_strict = true; 1499 cos_data->data[1].pri_join_mask |= pri_tested; 1500 /* If we join a group and one is strict 1501 * than the bw rulls */ 1502 cos_data->data[1].strict = 1503 BNX2X_DCBX_STRICT_COS_HIGHEST; 1504 } 1505 } 1506 } 1507 } 1508 1509 1510 static void bnx2x_dcbx_2cos_limit_cee_fill_cos_params(struct bnx2x *bp, 1511 struct pg_help_data *help_data, 1512 struct dcbx_ets_feature *ets, 1513 struct cos_help_data *cos_data, 1514 u32 *pg_pri_orginal_spread, 1515 u32 pri_join_mask, 1516 u8 num_of_dif_pri) 1517 { 1518 1519 /* default E2 settings */ 1520 cos_data->num_of_cos = DCBX_COS_MAX_NUM_E2; 1521 1522 switch (help_data->num_of_pg) { 1523 case 1: 1524 bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params( 1525 bp, 1526 help_data, 1527 cos_data, 1528 pri_join_mask, 1529 num_of_dif_pri); 1530 break; 1531 case 2: 1532 bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params( 1533 bp, 1534 help_data, 1535 ets, 1536 cos_data, 1537 pg_pri_orginal_spread, 1538 pri_join_mask, 1539 num_of_dif_pri); 1540 break; 1541 1542 case 3: 1543 bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params( 1544 bp, 1545 help_data, 1546 ets, 1547 cos_data, 1548 pg_pri_orginal_spread, 1549 pri_join_mask, 1550 num_of_dif_pri); 1551 break; 1552 default: 1553 BNX2X_ERR("Wrong pg_help_data.num_of_pg\n"); 1554 bnx2x_dcbx_ets_disabled_entry_data(bp, 1555 cos_data, pri_join_mask); 1556 } 1557 } 1558 1559 static int bnx2x_dcbx_spread_strict_pri(struct bnx2x *bp, 1560 struct cos_help_data *cos_data, 1561 u8 entry, 1562 u8 num_spread_of_entries, 1563 u8 strict_app_pris) 1564 { 1565 u8 strict_pri = BNX2X_DCBX_STRICT_COS_HIGHEST; 1566 u8 num_of_app_pri = MAX_PFC_PRIORITIES; 1567 u8 app_pri_bit = 0; 1568 1569 while (num_spread_of_entries && num_of_app_pri > 0) { 1570 app_pri_bit = 1 << (num_of_app_pri - 1); 1571 if (app_pri_bit & strict_app_pris) { 1572 struct cos_entry_help_data *data = &cos_data-> 1573 data[entry]; 1574 num_spread_of_entries--; 1575 if (num_spread_of_entries == 0) { 1576 /* last entry needed put all the entries left */ 1577 data->cos_bw = DCBX_INVALID_COS_BW; 1578 data->strict = strict_pri; 1579 data->pri_join_mask = strict_app_pris; 1580 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp, 1581 data->pri_join_mask); 1582 } else { 1583 strict_app_pris &= ~app_pri_bit; 1584 1585 data->cos_bw = DCBX_INVALID_COS_BW; 1586 data->strict = strict_pri; 1587 data->pri_join_mask = app_pri_bit; 1588 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp, 1589 data->pri_join_mask); 1590 } 1591 1592 strict_pri = 1593 BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(strict_pri); 1594 entry++; 1595 } 1596 1597 num_of_app_pri--; 1598 } 1599 1600 if (num_spread_of_entries) { 1601 BNX2X_ERR("Didn't succeed to spread strict priorities\n"); 1602 return -EINVAL; 1603 } 1604 1605 return 0; 1606 } 1607 1608 static u8 bnx2x_dcbx_cee_fill_strict_pri(struct bnx2x *bp, 1609 struct cos_help_data *cos_data, 1610 u8 entry, 1611 u8 num_spread_of_entries, 1612 u8 strict_app_pris) 1613 { 1614 1615 if (bnx2x_dcbx_spread_strict_pri(bp, cos_data, entry, 1616 num_spread_of_entries, 1617 strict_app_pris)) { 1618 struct cos_entry_help_data *data = &cos_data-> 1619 data[entry]; 1620 /* Fill BW entry */ 1621 data->cos_bw = DCBX_INVALID_COS_BW; 1622 data->strict = BNX2X_DCBX_STRICT_COS_HIGHEST; 1623 data->pri_join_mask = strict_app_pris; 1624 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp, 1625 data->pri_join_mask); 1626 return 1; 1627 } 1628 1629 return num_spread_of_entries; 1630 } 1631 1632 static void bnx2x_dcbx_cee_fill_cos_params(struct bnx2x *bp, 1633 struct pg_help_data *help_data, 1634 struct dcbx_ets_feature *ets, 1635 struct cos_help_data *cos_data, 1636 u32 pri_join_mask) 1637 1638 { 1639 u8 need_num_of_entries = 0; 1640 u8 i = 0; 1641 u8 entry = 0; 1642 1643 /* 1644 * if the number of requested PG-s in CEE is greater than 3 1645 * then the results are not determined since this is a violation 1646 * of the standard. 1647 */ 1648 if (help_data->num_of_pg > DCBX_COS_MAX_NUM_E3B0) { 1649 if (bnx2x_dcbx_join_pgs(bp, ets, help_data, 1650 DCBX_COS_MAX_NUM_E3B0)) { 1651 BNX2X_ERR("Unable to reduce the number of PGs - we will disables ETS\n"); 1652 bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data, 1653 pri_join_mask); 1654 return; 1655 } 1656 } 1657 1658 for (i = 0 ; i < help_data->num_of_pg; i++) { 1659 struct pg_entry_help_data *pg = &help_data->data[i]; 1660 if (pg->pg < DCBX_MAX_NUM_PG_BW_ENTRIES) { 1661 struct cos_entry_help_data *data = &cos_data-> 1662 data[entry]; 1663 /* Fill BW entry */ 1664 data->cos_bw = DCBX_PG_BW_GET(ets->pg_bw_tbl, pg->pg); 1665 data->strict = BNX2X_DCBX_STRICT_INVALID; 1666 data->pri_join_mask = pg->pg_priority; 1667 data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp, 1668 data->pri_join_mask); 1669 1670 entry++; 1671 } else { 1672 need_num_of_entries = min_t(u8, 1673 (u8)pg->num_of_dif_pri, 1674 (u8)DCBX_COS_MAX_NUM_E3B0 - 1675 help_data->num_of_pg + 1); 1676 /* 1677 * If there are still VOQ-s which have no associated PG, 1678 * then associate these VOQ-s to PG15. These PG-s will 1679 * be used for SP between priorities on PG15. 1680 */ 1681 entry += bnx2x_dcbx_cee_fill_strict_pri(bp, cos_data, 1682 entry, need_num_of_entries, pg->pg_priority); 1683 } 1684 } 1685 1686 /* the entry will represent the number of COSes used */ 1687 cos_data->num_of_cos = entry; 1688 } 1689 static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp, 1690 struct pg_help_data *help_data, 1691 struct dcbx_ets_feature *ets, 1692 u32 *pg_pri_orginal_spread) 1693 { 1694 struct cos_help_data cos_data; 1695 u8 i = 0; 1696 u32 pri_join_mask = 0; 1697 u8 num_of_dif_pri = 0; 1698 1699 memset(&cos_data, 0, sizeof(cos_data)); 1700 1701 /* Validate the pg value */ 1702 for (i = 0; i < help_data->num_of_pg ; i++) { 1703 if (DCBX_STRICT_PRIORITY != help_data->data[i].pg && 1704 DCBX_MAX_NUM_PG_BW_ENTRIES <= help_data->data[i].pg) 1705 BNX2X_ERR("Invalid pg[%d] data %x\n", i, 1706 help_data->data[i].pg); 1707 pri_join_mask |= help_data->data[i].pg_priority; 1708 num_of_dif_pri += help_data->data[i].num_of_dif_pri; 1709 } 1710 1711 /* defaults */ 1712 cos_data.num_of_cos = 1; 1713 for (i = 0; i < ARRAY_SIZE(cos_data.data); i++) { 1714 cos_data.data[i].pri_join_mask = 0; 1715 cos_data.data[i].pausable = false; 1716 cos_data.data[i].strict = BNX2X_DCBX_STRICT_INVALID; 1717 cos_data.data[i].cos_bw = DCBX_INVALID_COS_BW; 1718 } 1719 1720 if (CHIP_IS_E3B0(bp)) 1721 bnx2x_dcbx_cee_fill_cos_params(bp, help_data, ets, 1722 &cos_data, pri_join_mask); 1723 else /* E2 + E3A0 */ 1724 bnx2x_dcbx_2cos_limit_cee_fill_cos_params(bp, 1725 help_data, ets, 1726 &cos_data, 1727 pg_pri_orginal_spread, 1728 pri_join_mask, 1729 num_of_dif_pri); 1730 1731 for (i = 0; i < cos_data.num_of_cos ; i++) { 1732 struct bnx2x_dcbx_cos_params *p = 1733 &bp->dcbx_port_params.ets.cos_params[i]; 1734 1735 p->strict = cos_data.data[i].strict; 1736 p->bw_tbl = cos_data.data[i].cos_bw; 1737 p->pri_bitmask = cos_data.data[i].pri_join_mask; 1738 p->pauseable = cos_data.data[i].pausable; 1739 1740 /* sanity */ 1741 if (p->bw_tbl != DCBX_INVALID_COS_BW || 1742 p->strict != BNX2X_DCBX_STRICT_INVALID) { 1743 if (p->pri_bitmask == 0) 1744 BNX2X_ERR("Invalid pri_bitmask for %d\n", i); 1745 1746 if (CHIP_IS_E2(bp) || CHIP_IS_E3A0(bp)) { 1747 1748 if (p->pauseable && 1749 DCBX_PFC_PRI_GET_NON_PAUSE(bp, 1750 p->pri_bitmask) != 0) 1751 BNX2X_ERR("Inconsistent config for pausable COS %d\n", 1752 i); 1753 1754 if (!p->pauseable && 1755 DCBX_PFC_PRI_GET_PAUSE(bp, 1756 p->pri_bitmask) != 0) 1757 BNX2X_ERR("Inconsistent config for nonpausable COS %d\n", 1758 i); 1759 } 1760 } 1761 1762 if (p->pauseable) 1763 DP(BNX2X_MSG_DCB, "COS %d PAUSABLE prijoinmask 0x%x\n", 1764 i, cos_data.data[i].pri_join_mask); 1765 else 1766 DP(BNX2X_MSG_DCB, 1767 "COS %d NONPAUSABLE prijoinmask 0x%x\n", 1768 i, cos_data.data[i].pri_join_mask); 1769 } 1770 1771 bp->dcbx_port_params.ets.num_of_cos = cos_data.num_of_cos ; 1772 } 1773 1774 static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp, 1775 u32 *set_configuration_ets_pg, 1776 u32 *pri_pg_tbl) 1777 { 1778 int i; 1779 1780 for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) { 1781 set_configuration_ets_pg[i] = DCBX_PRI_PG_GET(pri_pg_tbl, i); 1782 1783 DP(BNX2X_MSG_DCB, "set_configuration_ets_pg[%d] = 0x%x\n", 1784 i, set_configuration_ets_pg[i]); 1785 } 1786 } 1787 1788 static void bnx2x_dcbx_fw_struct(struct bnx2x *bp, 1789 struct bnx2x_func_tx_start_params *pfc_fw_cfg) 1790 { 1791 u16 pri_bit = 0; 1792 u8 cos = 0, pri = 0; 1793 struct priority_cos *tt2cos; 1794 u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority; 1795 1796 memset(pfc_fw_cfg, 0, sizeof(*pfc_fw_cfg)); 1797 1798 /* to disable DCB - the structure must be zeroed */ 1799 if (bp->dcbx_error & DCBX_REMOTE_MIB_ERROR) 1800 return; 1801 1802 /*shortcut*/ 1803 tt2cos = pfc_fw_cfg->traffic_type_to_priority_cos; 1804 1805 /* Fw version should be incremented each update */ 1806 pfc_fw_cfg->dcb_version = ++bp->dcb_version; 1807 pfc_fw_cfg->dcb_enabled = 1; 1808 1809 /* Fill priority parameters */ 1810 for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) { 1811 tt2cos[pri].priority = ttp[pri]; 1812 pri_bit = 1 << tt2cos[pri].priority; 1813 1814 /* Fill COS parameters based on COS calculated to 1815 * make it more general for future use */ 1816 for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++) 1817 if (bp->dcbx_port_params.ets.cos_params[cos]. 1818 pri_bitmask & pri_bit) 1819 tt2cos[pri].cos = cos; 1820 } 1821 1822 /* we never want the FW to add a 0 vlan tag */ 1823 pfc_fw_cfg->dont_add_pri_0_en = 1; 1824 1825 bnx2x_dcbx_print_cos_params(bp, pfc_fw_cfg); 1826 } 1827 1828 void bnx2x_dcbx_pmf_update(struct bnx2x *bp) 1829 { 1830 /* if we need to syncronize DCBX result from prev PMF 1831 * read it from shmem and update bp and netdev accordingly 1832 */ 1833 if (SHMEM2_HAS(bp, drv_flags) && 1834 GET_FLAGS(SHMEM2_RD(bp, drv_flags), 1 << DRV_FLAGS_DCB_CONFIGURED)) { 1835 /* Read neg results if dcbx is in the FW */ 1836 if (bnx2x_dcbx_read_shmem_neg_results(bp)) 1837 return; 1838 1839 bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat, 1840 bp->dcbx_error); 1841 bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat, 1842 bp->dcbx_error); 1843 #ifdef BCM_DCBNL 1844 /* 1845 * Add new app tlvs to dcbnl 1846 */ 1847 bnx2x_dcbnl_update_applist(bp, false); 1848 /* 1849 * Send a notification for the new negotiated parameters 1850 */ 1851 dcbnl_cee_notify(bp->dev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0); 1852 #endif 1853 /* 1854 * reconfigure the netdevice with the results of the new 1855 * dcbx negotiation. 1856 */ 1857 bnx2x_dcbx_update_tc_mapping(bp); 1858 1859 } 1860 } 1861 1862 /* DCB netlink */ 1863 #ifdef BCM_DCBNL 1864 1865 #define BNX2X_DCBX_CAPS (DCB_CAP_DCBX_LLD_MANAGED | \ 1866 DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_STATIC) 1867 1868 static inline bool bnx2x_dcbnl_set_valid(struct bnx2x *bp) 1869 { 1870 /* validate dcbnl call that may change HW state: 1871 * DCB is on and DCBX mode was SUCCESSFULLY set by the user. 1872 */ 1873 return bp->dcb_state && bp->dcbx_mode_uset; 1874 } 1875 1876 static u8 bnx2x_dcbnl_get_state(struct net_device *netdev) 1877 { 1878 struct bnx2x *bp = netdev_priv(netdev); 1879 DP(BNX2X_MSG_DCB, "state = %d\n", bp->dcb_state); 1880 return bp->dcb_state; 1881 } 1882 1883 static u8 bnx2x_dcbnl_set_state(struct net_device *netdev, u8 state) 1884 { 1885 struct bnx2x *bp = netdev_priv(netdev); 1886 DP(BNX2X_MSG_DCB, "state = %s\n", state ? "on" : "off"); 1887 1888 bnx2x_dcbx_set_state(bp, (state ? true : false), bp->dcbx_enabled); 1889 return 0; 1890 } 1891 1892 static void bnx2x_dcbnl_get_perm_hw_addr(struct net_device *netdev, 1893 u8 *perm_addr) 1894 { 1895 struct bnx2x *bp = netdev_priv(netdev); 1896 DP(BNX2X_MSG_DCB, "GET-PERM-ADDR\n"); 1897 1898 /* first the HW mac address */ 1899 memcpy(perm_addr, netdev->dev_addr, netdev->addr_len); 1900 1901 #ifdef BCM_CNIC 1902 /* second SAN address */ 1903 memcpy(perm_addr+netdev->addr_len, bp->fip_mac, netdev->addr_len); 1904 #endif 1905 } 1906 1907 static void bnx2x_dcbnl_set_pg_tccfg_tx(struct net_device *netdev, int prio, 1908 u8 prio_type, u8 pgid, u8 bw_pct, 1909 u8 up_map) 1910 { 1911 struct bnx2x *bp = netdev_priv(netdev); 1912 1913 DP(BNX2X_MSG_DCB, "prio[%d] = %d\n", prio, pgid); 1914 if (!bnx2x_dcbnl_set_valid(bp) || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES) 1915 return; 1916 1917 /** 1918 * bw_pct ingnored - band-width percentage devision between user 1919 * priorities within the same group is not 1920 * standard and hence not supported 1921 * 1922 * prio_type igonred - priority levels within the same group are not 1923 * standard and hence are not supported. According 1924 * to the standard pgid 15 is dedicated to strict 1925 * prioirty traffic (on the port level). 1926 * 1927 * up_map ignored 1928 */ 1929 1930 bp->dcbx_config_params.admin_configuration_ets_pg[prio] = pgid; 1931 bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1; 1932 } 1933 1934 static void bnx2x_dcbnl_set_pg_bwgcfg_tx(struct net_device *netdev, 1935 int pgid, u8 bw_pct) 1936 { 1937 struct bnx2x *bp = netdev_priv(netdev); 1938 DP(BNX2X_MSG_DCB, "pgid[%d] = %d\n", pgid, bw_pct); 1939 1940 if (!bnx2x_dcbnl_set_valid(bp) || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES) 1941 return; 1942 1943 bp->dcbx_config_params.admin_configuration_bw_precentage[pgid] = bw_pct; 1944 bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1; 1945 } 1946 1947 static void bnx2x_dcbnl_set_pg_tccfg_rx(struct net_device *netdev, int prio, 1948 u8 prio_type, u8 pgid, u8 bw_pct, 1949 u8 up_map) 1950 { 1951 struct bnx2x *bp = netdev_priv(netdev); 1952 DP(BNX2X_MSG_DCB, "Nothing to set; No RX support\n"); 1953 } 1954 1955 static void bnx2x_dcbnl_set_pg_bwgcfg_rx(struct net_device *netdev, 1956 int pgid, u8 bw_pct) 1957 { 1958 struct bnx2x *bp = netdev_priv(netdev); 1959 DP(BNX2X_MSG_DCB, "Nothing to set; No RX support\n"); 1960 } 1961 1962 static void bnx2x_dcbnl_get_pg_tccfg_tx(struct net_device *netdev, int prio, 1963 u8 *prio_type, u8 *pgid, u8 *bw_pct, 1964 u8 *up_map) 1965 { 1966 struct bnx2x *bp = netdev_priv(netdev); 1967 DP(BNX2X_MSG_DCB, "prio = %d\n", prio); 1968 1969 /** 1970 * bw_pct ingnored - band-width percentage devision between user 1971 * priorities within the same group is not 1972 * standard and hence not supported 1973 * 1974 * prio_type igonred - priority levels within the same group are not 1975 * standard and hence are not supported. According 1976 * to the standard pgid 15 is dedicated to strict 1977 * prioirty traffic (on the port level). 1978 * 1979 * up_map ignored 1980 */ 1981 *up_map = *bw_pct = *prio_type = *pgid = 0; 1982 1983 if (!bp->dcb_state || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES) 1984 return; 1985 1986 *pgid = DCBX_PRI_PG_GET(bp->dcbx_local_feat.ets.pri_pg_tbl, prio); 1987 } 1988 1989 static void bnx2x_dcbnl_get_pg_bwgcfg_tx(struct net_device *netdev, 1990 int pgid, u8 *bw_pct) 1991 { 1992 struct bnx2x *bp = netdev_priv(netdev); 1993 DP(BNX2X_MSG_DCB, "pgid = %d\n", pgid); 1994 1995 *bw_pct = 0; 1996 1997 if (!bp->dcb_state || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES) 1998 return; 1999 2000 *bw_pct = DCBX_PG_BW_GET(bp->dcbx_local_feat.ets.pg_bw_tbl, pgid); 2001 } 2002 2003 static void bnx2x_dcbnl_get_pg_tccfg_rx(struct net_device *netdev, int prio, 2004 u8 *prio_type, u8 *pgid, u8 *bw_pct, 2005 u8 *up_map) 2006 { 2007 struct bnx2x *bp = netdev_priv(netdev); 2008 DP(BNX2X_MSG_DCB, "Nothing to get; No RX support\n"); 2009 2010 *prio_type = *pgid = *bw_pct = *up_map = 0; 2011 } 2012 2013 static void bnx2x_dcbnl_get_pg_bwgcfg_rx(struct net_device *netdev, 2014 int pgid, u8 *bw_pct) 2015 { 2016 struct bnx2x *bp = netdev_priv(netdev); 2017 DP(BNX2X_MSG_DCB, "Nothing to get; No RX support\n"); 2018 2019 *bw_pct = 0; 2020 } 2021 2022 static void bnx2x_dcbnl_set_pfc_cfg(struct net_device *netdev, int prio, 2023 u8 setting) 2024 { 2025 struct bnx2x *bp = netdev_priv(netdev); 2026 DP(BNX2X_MSG_DCB, "prio[%d] = %d\n", prio, setting); 2027 2028 if (!bnx2x_dcbnl_set_valid(bp) || prio >= MAX_PFC_PRIORITIES) 2029 return; 2030 2031 bp->dcbx_config_params.admin_pfc_bitmap |= ((setting ? 1 : 0) << prio); 2032 2033 if (setting) 2034 bp->dcbx_config_params.admin_pfc_tx_enable = 1; 2035 } 2036 2037 static void bnx2x_dcbnl_get_pfc_cfg(struct net_device *netdev, int prio, 2038 u8 *setting) 2039 { 2040 struct bnx2x *bp = netdev_priv(netdev); 2041 DP(BNX2X_MSG_DCB, "prio = %d\n", prio); 2042 2043 *setting = 0; 2044 2045 if (!bp->dcb_state || prio >= MAX_PFC_PRIORITIES) 2046 return; 2047 2048 *setting = (bp->dcbx_local_feat.pfc.pri_en_bitmap >> prio) & 0x1; 2049 } 2050 2051 static u8 bnx2x_dcbnl_set_all(struct net_device *netdev) 2052 { 2053 struct bnx2x *bp = netdev_priv(netdev); 2054 int rc = 0; 2055 2056 DP(BNX2X_MSG_DCB, "SET-ALL\n"); 2057 2058 if (!bnx2x_dcbnl_set_valid(bp)) 2059 return 1; 2060 2061 if (bp->recovery_state != BNX2X_RECOVERY_DONE) { 2062 netdev_err(bp->dev, 2063 "Handling parity error recovery. Try again later\n"); 2064 return 1; 2065 } 2066 if (netif_running(bp->dev)) { 2067 bnx2x_nic_unload(bp, UNLOAD_NORMAL); 2068 rc = bnx2x_nic_load(bp, LOAD_NORMAL); 2069 } 2070 DP(BNX2X_MSG_DCB, "set_dcbx_params done (%d)\n", rc); 2071 if (rc) 2072 return 1; 2073 2074 return 0; 2075 } 2076 2077 static u8 bnx2x_dcbnl_get_cap(struct net_device *netdev, int capid, u8 *cap) 2078 { 2079 struct bnx2x *bp = netdev_priv(netdev); 2080 u8 rval = 0; 2081 2082 if (bp->dcb_state) { 2083 switch (capid) { 2084 case DCB_CAP_ATTR_PG: 2085 *cap = true; 2086 break; 2087 case DCB_CAP_ATTR_PFC: 2088 *cap = true; 2089 break; 2090 case DCB_CAP_ATTR_UP2TC: 2091 *cap = false; 2092 break; 2093 case DCB_CAP_ATTR_PG_TCS: 2094 *cap = 0x80; /* 8 priorities for PGs */ 2095 break; 2096 case DCB_CAP_ATTR_PFC_TCS: 2097 *cap = 0x80; /* 8 priorities for PFC */ 2098 break; 2099 case DCB_CAP_ATTR_GSP: 2100 *cap = true; 2101 break; 2102 case DCB_CAP_ATTR_BCN: 2103 *cap = false; 2104 break; 2105 case DCB_CAP_ATTR_DCBX: 2106 *cap = BNX2X_DCBX_CAPS; 2107 break; 2108 default: 2109 BNX2X_ERR("Non valid capability ID\n"); 2110 rval = -EINVAL; 2111 break; 2112 } 2113 } else { 2114 DP(BNX2X_MSG_DCB, "DCB disabled\n"); 2115 rval = -EINVAL; 2116 } 2117 2118 DP(BNX2X_MSG_DCB, "capid %d:%x\n", capid, *cap); 2119 return rval; 2120 } 2121 2122 static int bnx2x_dcbnl_get_numtcs(struct net_device *netdev, int tcid, u8 *num) 2123 { 2124 struct bnx2x *bp = netdev_priv(netdev); 2125 u8 rval = 0; 2126 2127 DP(BNX2X_MSG_DCB, "tcid %d\n", tcid); 2128 2129 if (bp->dcb_state) { 2130 switch (tcid) { 2131 case DCB_NUMTCS_ATTR_PG: 2132 *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 : 2133 DCBX_COS_MAX_NUM_E2; 2134 break; 2135 case DCB_NUMTCS_ATTR_PFC: 2136 *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 : 2137 DCBX_COS_MAX_NUM_E2; 2138 break; 2139 default: 2140 BNX2X_ERR("Non valid TC-ID\n"); 2141 rval = -EINVAL; 2142 break; 2143 } 2144 } else { 2145 DP(BNX2X_MSG_DCB, "DCB disabled\n"); 2146 rval = -EINVAL; 2147 } 2148 2149 return rval; 2150 } 2151 2152 static int bnx2x_dcbnl_set_numtcs(struct net_device *netdev, int tcid, u8 num) 2153 { 2154 struct bnx2x *bp = netdev_priv(netdev); 2155 DP(BNX2X_MSG_DCB, "num tcs = %d; Not supported\n", num); 2156 return -EINVAL; 2157 } 2158 2159 static u8 bnx2x_dcbnl_get_pfc_state(struct net_device *netdev) 2160 { 2161 struct bnx2x *bp = netdev_priv(netdev); 2162 DP(BNX2X_MSG_DCB, "state = %d\n", bp->dcbx_local_feat.pfc.enabled); 2163 2164 if (!bp->dcb_state) 2165 return 0; 2166 2167 return bp->dcbx_local_feat.pfc.enabled; 2168 } 2169 2170 static void bnx2x_dcbnl_set_pfc_state(struct net_device *netdev, u8 state) 2171 { 2172 struct bnx2x *bp = netdev_priv(netdev); 2173 DP(BNX2X_MSG_DCB, "state = %s\n", state ? "on" : "off"); 2174 2175 if (!bnx2x_dcbnl_set_valid(bp)) 2176 return; 2177 2178 bp->dcbx_config_params.admin_pfc_tx_enable = 2179 bp->dcbx_config_params.admin_pfc_enable = (state ? 1 : 0); 2180 } 2181 2182 static void bnx2x_admin_app_set_ent( 2183 struct bnx2x_admin_priority_app_table *app_ent, 2184 u8 idtype, u16 idval, u8 up) 2185 { 2186 app_ent->valid = 1; 2187 2188 switch (idtype) { 2189 case DCB_APP_IDTYPE_ETHTYPE: 2190 app_ent->traffic_type = TRAFFIC_TYPE_ETH; 2191 break; 2192 case DCB_APP_IDTYPE_PORTNUM: 2193 app_ent->traffic_type = TRAFFIC_TYPE_PORT; 2194 break; 2195 default: 2196 break; /* never gets here */ 2197 } 2198 app_ent->app_id = idval; 2199 app_ent->priority = up; 2200 } 2201 2202 static bool bnx2x_admin_app_is_equal( 2203 struct bnx2x_admin_priority_app_table *app_ent, 2204 u8 idtype, u16 idval) 2205 { 2206 if (!app_ent->valid) 2207 return false; 2208 2209 switch (idtype) { 2210 case DCB_APP_IDTYPE_ETHTYPE: 2211 if (app_ent->traffic_type != TRAFFIC_TYPE_ETH) 2212 return false; 2213 break; 2214 case DCB_APP_IDTYPE_PORTNUM: 2215 if (app_ent->traffic_type != TRAFFIC_TYPE_PORT) 2216 return false; 2217 break; 2218 default: 2219 return false; 2220 } 2221 if (app_ent->app_id != idval) 2222 return false; 2223 2224 return true; 2225 } 2226 2227 static int bnx2x_set_admin_app_up(struct bnx2x *bp, u8 idtype, u16 idval, u8 up) 2228 { 2229 int i, ff; 2230 2231 /* iterate over the app entries looking for idtype and idval */ 2232 for (i = 0, ff = -1; i < DCBX_CONFIG_MAX_APP_PROTOCOL; i++) { 2233 struct bnx2x_admin_priority_app_table *app_ent = 2234 &bp->dcbx_config_params.admin_priority_app_table[i]; 2235 if (bnx2x_admin_app_is_equal(app_ent, idtype, idval)) 2236 break; 2237 2238 if (ff < 0 && !app_ent->valid) 2239 ff = i; 2240 } 2241 if (i < DCBX_CONFIG_MAX_APP_PROTOCOL) 2242 /* if found overwrite up */ 2243 bp->dcbx_config_params. 2244 admin_priority_app_table[i].priority = up; 2245 else if (ff >= 0) 2246 /* not found use first-free */ 2247 bnx2x_admin_app_set_ent( 2248 &bp->dcbx_config_params.admin_priority_app_table[ff], 2249 idtype, idval, up); 2250 else { 2251 /* app table is full */ 2252 BNX2X_ERR("Application table is too large\n"); 2253 return -EBUSY; 2254 } 2255 2256 /* up configured, if not 0 make sure feature is enabled */ 2257 if (up) 2258 bp->dcbx_config_params.admin_application_priority_tx_enable = 1; 2259 2260 return 0; 2261 } 2262 2263 static u8 bnx2x_dcbnl_set_app_up(struct net_device *netdev, u8 idtype, 2264 u16 idval, u8 up) 2265 { 2266 struct bnx2x *bp = netdev_priv(netdev); 2267 2268 DP(BNX2X_MSG_DCB, "app_type %d, app_id %x, prio bitmap %d\n", 2269 idtype, idval, up); 2270 2271 if (!bnx2x_dcbnl_set_valid(bp)) { 2272 DP(BNX2X_MSG_DCB, "dcbnl call not valid\n"); 2273 return -EINVAL; 2274 } 2275 2276 /* verify idtype */ 2277 switch (idtype) { 2278 case DCB_APP_IDTYPE_ETHTYPE: 2279 case DCB_APP_IDTYPE_PORTNUM: 2280 break; 2281 default: 2282 DP(BNX2X_MSG_DCB, "Wrong ID type\n"); 2283 return -EINVAL; 2284 } 2285 return bnx2x_set_admin_app_up(bp, idtype, idval, up); 2286 } 2287 2288 static u8 bnx2x_dcbnl_get_dcbx(struct net_device *netdev) 2289 { 2290 struct bnx2x *bp = netdev_priv(netdev); 2291 u8 state; 2292 2293 state = DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_CEE; 2294 2295 if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF) 2296 state |= DCB_CAP_DCBX_STATIC; 2297 2298 return state; 2299 } 2300 2301 static u8 bnx2x_dcbnl_set_dcbx(struct net_device *netdev, u8 state) 2302 { 2303 struct bnx2x *bp = netdev_priv(netdev); 2304 DP(BNX2X_MSG_DCB, "state = %02x\n", state); 2305 2306 /* set dcbx mode */ 2307 2308 if ((state & BNX2X_DCBX_CAPS) != state) { 2309 BNX2X_ERR("Requested DCBX mode %x is beyond advertised capabilities\n", 2310 state); 2311 return 1; 2312 } 2313 2314 if (bp->dcb_state != BNX2X_DCB_STATE_ON) { 2315 BNX2X_ERR("DCB turned off, DCBX configuration is invalid\n"); 2316 return 1; 2317 } 2318 2319 if (state & DCB_CAP_DCBX_STATIC) 2320 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_OFF; 2321 else 2322 bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_ON; 2323 2324 bp->dcbx_mode_uset = true; 2325 return 0; 2326 } 2327 2328 static u8 bnx2x_dcbnl_get_featcfg(struct net_device *netdev, int featid, 2329 u8 *flags) 2330 { 2331 struct bnx2x *bp = netdev_priv(netdev); 2332 u8 rval = 0; 2333 2334 DP(BNX2X_MSG_DCB, "featid %d\n", featid); 2335 2336 if (bp->dcb_state) { 2337 *flags = 0; 2338 switch (featid) { 2339 case DCB_FEATCFG_ATTR_PG: 2340 if (bp->dcbx_local_feat.ets.enabled) 2341 *flags |= DCB_FEATCFG_ENABLE; 2342 if (bp->dcbx_error & DCBX_LOCAL_ETS_ERROR) 2343 *flags |= DCB_FEATCFG_ERROR; 2344 break; 2345 case DCB_FEATCFG_ATTR_PFC: 2346 if (bp->dcbx_local_feat.pfc.enabled) 2347 *flags |= DCB_FEATCFG_ENABLE; 2348 if (bp->dcbx_error & (DCBX_LOCAL_PFC_ERROR | 2349 DCBX_LOCAL_PFC_MISMATCH)) 2350 *flags |= DCB_FEATCFG_ERROR; 2351 break; 2352 case DCB_FEATCFG_ATTR_APP: 2353 if (bp->dcbx_local_feat.app.enabled) 2354 *flags |= DCB_FEATCFG_ENABLE; 2355 if (bp->dcbx_error & (DCBX_LOCAL_APP_ERROR | 2356 DCBX_LOCAL_APP_MISMATCH)) 2357 *flags |= DCB_FEATCFG_ERROR; 2358 break; 2359 default: 2360 BNX2X_ERR("Non valid featrue-ID\n"); 2361 rval = -EINVAL; 2362 break; 2363 } 2364 } else { 2365 DP(BNX2X_MSG_DCB, "DCB disabled\n"); 2366 rval = -EINVAL; 2367 } 2368 2369 return rval; 2370 } 2371 2372 static u8 bnx2x_dcbnl_set_featcfg(struct net_device *netdev, int featid, 2373 u8 flags) 2374 { 2375 struct bnx2x *bp = netdev_priv(netdev); 2376 u8 rval = 0; 2377 2378 DP(BNX2X_MSG_DCB, "featid = %d flags = %02x\n", featid, flags); 2379 2380 /* ignore the 'advertise' flag */ 2381 if (bnx2x_dcbnl_set_valid(bp)) { 2382 switch (featid) { 2383 case DCB_FEATCFG_ATTR_PG: 2384 bp->dcbx_config_params.admin_ets_enable = 2385 flags & DCB_FEATCFG_ENABLE ? 1 : 0; 2386 bp->dcbx_config_params.admin_ets_willing = 2387 flags & DCB_FEATCFG_WILLING ? 1 : 0; 2388 break; 2389 case DCB_FEATCFG_ATTR_PFC: 2390 bp->dcbx_config_params.admin_pfc_enable = 2391 flags & DCB_FEATCFG_ENABLE ? 1 : 0; 2392 bp->dcbx_config_params.admin_pfc_willing = 2393 flags & DCB_FEATCFG_WILLING ? 1 : 0; 2394 break; 2395 case DCB_FEATCFG_ATTR_APP: 2396 /* ignore enable, always enabled */ 2397 bp->dcbx_config_params.admin_app_priority_willing = 2398 flags & DCB_FEATCFG_WILLING ? 1 : 0; 2399 break; 2400 default: 2401 BNX2X_ERR("Non valid featrue-ID\n"); 2402 rval = -EINVAL; 2403 break; 2404 } 2405 } else { 2406 DP(BNX2X_MSG_DCB, "dcbnl call not valid\n"); 2407 rval = -EINVAL; 2408 } 2409 2410 return rval; 2411 } 2412 2413 static int bnx2x_peer_appinfo(struct net_device *netdev, 2414 struct dcb_peer_app_info *info, u16* app_count) 2415 { 2416 int i; 2417 struct bnx2x *bp = netdev_priv(netdev); 2418 2419 DP(BNX2X_MSG_DCB, "APP-INFO\n"); 2420 2421 info->willing = (bp->dcbx_remote_flags & DCBX_APP_REM_WILLING) ?: 0; 2422 info->error = (bp->dcbx_remote_flags & DCBX_APP_RX_ERROR) ?: 0; 2423 *app_count = 0; 2424 2425 for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) 2426 if (bp->dcbx_remote_feat.app.app_pri_tbl[i].appBitfield & 2427 DCBX_APP_ENTRY_VALID) 2428 (*app_count)++; 2429 return 0; 2430 } 2431 2432 static int bnx2x_peer_apptable(struct net_device *netdev, 2433 struct dcb_app *table) 2434 { 2435 int i, j; 2436 struct bnx2x *bp = netdev_priv(netdev); 2437 2438 DP(BNX2X_MSG_DCB, "APP-TABLE\n"); 2439 2440 for (i = 0, j = 0; i < DCBX_MAX_APP_PROTOCOL; i++) { 2441 struct dcbx_app_priority_entry *ent = 2442 &bp->dcbx_remote_feat.app.app_pri_tbl[i]; 2443 2444 if (ent->appBitfield & DCBX_APP_ENTRY_VALID) { 2445 table[j].selector = bnx2x_dcbx_dcbnl_app_idtype(ent); 2446 table[j].priority = bnx2x_dcbx_dcbnl_app_up(ent); 2447 table[j++].protocol = ent->app_id; 2448 } 2449 } 2450 return 0; 2451 } 2452 2453 static int bnx2x_cee_peer_getpg(struct net_device *netdev, struct cee_pg *pg) 2454 { 2455 int i; 2456 struct bnx2x *bp = netdev_priv(netdev); 2457 2458 pg->willing = (bp->dcbx_remote_flags & DCBX_ETS_REM_WILLING) ?: 0; 2459 2460 for (i = 0; i < CEE_DCBX_MAX_PGS; i++) { 2461 pg->pg_bw[i] = 2462 DCBX_PG_BW_GET(bp->dcbx_remote_feat.ets.pg_bw_tbl, i); 2463 pg->prio_pg[i] = 2464 DCBX_PRI_PG_GET(bp->dcbx_remote_feat.ets.pri_pg_tbl, i); 2465 } 2466 return 0; 2467 } 2468 2469 static int bnx2x_cee_peer_getpfc(struct net_device *netdev, 2470 struct cee_pfc *pfc) 2471 { 2472 struct bnx2x *bp = netdev_priv(netdev); 2473 pfc->tcs_supported = bp->dcbx_remote_feat.pfc.pfc_caps; 2474 pfc->pfc_en = bp->dcbx_remote_feat.pfc.pri_en_bitmap; 2475 return 0; 2476 } 2477 2478 const struct dcbnl_rtnl_ops bnx2x_dcbnl_ops = { 2479 .getstate = bnx2x_dcbnl_get_state, 2480 .setstate = bnx2x_dcbnl_set_state, 2481 .getpermhwaddr = bnx2x_dcbnl_get_perm_hw_addr, 2482 .setpgtccfgtx = bnx2x_dcbnl_set_pg_tccfg_tx, 2483 .setpgbwgcfgtx = bnx2x_dcbnl_set_pg_bwgcfg_tx, 2484 .setpgtccfgrx = bnx2x_dcbnl_set_pg_tccfg_rx, 2485 .setpgbwgcfgrx = bnx2x_dcbnl_set_pg_bwgcfg_rx, 2486 .getpgtccfgtx = bnx2x_dcbnl_get_pg_tccfg_tx, 2487 .getpgbwgcfgtx = bnx2x_dcbnl_get_pg_bwgcfg_tx, 2488 .getpgtccfgrx = bnx2x_dcbnl_get_pg_tccfg_rx, 2489 .getpgbwgcfgrx = bnx2x_dcbnl_get_pg_bwgcfg_rx, 2490 .setpfccfg = bnx2x_dcbnl_set_pfc_cfg, 2491 .getpfccfg = bnx2x_dcbnl_get_pfc_cfg, 2492 .setall = bnx2x_dcbnl_set_all, 2493 .getcap = bnx2x_dcbnl_get_cap, 2494 .getnumtcs = bnx2x_dcbnl_get_numtcs, 2495 .setnumtcs = bnx2x_dcbnl_set_numtcs, 2496 .getpfcstate = bnx2x_dcbnl_get_pfc_state, 2497 .setpfcstate = bnx2x_dcbnl_set_pfc_state, 2498 .setapp = bnx2x_dcbnl_set_app_up, 2499 .getdcbx = bnx2x_dcbnl_get_dcbx, 2500 .setdcbx = bnx2x_dcbnl_set_dcbx, 2501 .getfeatcfg = bnx2x_dcbnl_get_featcfg, 2502 .setfeatcfg = bnx2x_dcbnl_set_featcfg, 2503 .peer_getappinfo = bnx2x_peer_appinfo, 2504 .peer_getapptable = bnx2x_peer_apptable, 2505 .cee_peer_getpg = bnx2x_cee_peer_getpg, 2506 .cee_peer_getpfc = bnx2x_cee_peer_getpfc, 2507 }; 2508 2509 #endif /* BCM_DCBNL */ 2510