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path: root/drivers/net/ixgbe/ixgbe_dcb_nl.c
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Diffstat (limited to 'drivers/net/ixgbe/ixgbe_dcb_nl.c')
-rw-r--r--drivers/net/ixgbe/ixgbe_dcb_nl.c481
1 files changed, 340 insertions, 141 deletions
diff --git a/drivers/net/ixgbe/ixgbe_dcb_nl.c b/drivers/net/ixgbe/ixgbe_dcb_nl.c
index b53b465e24af..5e7ed225851a 100644
--- a/drivers/net/ixgbe/ixgbe_dcb_nl.c
+++ b/drivers/net/ixgbe/ixgbe_dcb_nl.c
@@ -1,7 +1,7 @@
1/******************************************************************************* 1/*******************************************************************************
2 2
3 Intel 10 Gigabit PCI Express Linux driver 3 Intel 10 Gigabit PCI Express Linux driver
4 Copyright(c) 1999 - 2010 Intel Corporation. 4 Copyright(c) 1999 - 2011 Intel Corporation.
5 5
6 This program is free software; you can redistribute it and/or modify it 6 This program is free software; you can redistribute it and/or modify it
7 under the terms and conditions of the GNU General Public License, 7 under the terms and conditions of the GNU General Public License,
@@ -37,7 +37,6 @@
37#define BIT_PG_RX 0x04 37#define BIT_PG_RX 0x04
38#define BIT_PG_TX 0x08 38#define BIT_PG_TX 0x08
39#define BIT_APP_UPCHG 0x10 39#define BIT_APP_UPCHG 0x10
40#define BIT_RESETLINK 0x40
41#define BIT_LINKSPEED 0x80 40#define BIT_LINKSPEED 0x80
42 41
43/* Responses for the DCB_C_SET_ALL command */ 42/* Responses for the DCB_C_SET_ALL command */
@@ -130,16 +129,24 @@ static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state)
130 netdev->netdev_ops->ndo_stop(netdev); 129 netdev->netdev_ops->ndo_stop(netdev);
131 ixgbe_clear_interrupt_scheme(adapter); 130 ixgbe_clear_interrupt_scheme(adapter);
132 131
133 if (adapter->hw.mac.type == ixgbe_mac_82598EB) { 132 switch (adapter->hw.mac.type) {
133 case ixgbe_mac_82598EB:
134 adapter->last_lfc_mode = adapter->hw.fc.current_mode; 134 adapter->last_lfc_mode = adapter->hw.fc.current_mode;
135 adapter->hw.fc.requested_mode = ixgbe_fc_none; 135 adapter->hw.fc.requested_mode = ixgbe_fc_none;
136 } 136 break;
137 adapter->flags &= ~IXGBE_FLAG_RSS_ENABLED; 137 case ixgbe_mac_82599EB:
138 if (adapter->hw.mac.type == ixgbe_mac_82599EB) { 138 case ixgbe_mac_X540:
139 adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE; 139 adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE;
140 adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE; 140 adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE;
141 break;
142 default:
143 break;
141 } 144 }
145
142 adapter->flags |= IXGBE_FLAG_DCB_ENABLED; 146 adapter->flags |= IXGBE_FLAG_DCB_ENABLED;
147 if (!netdev_get_num_tc(netdev))
148 ixgbe_setup_tc(netdev, MAX_TRAFFIC_CLASS);
149
143 ixgbe_init_interrupt_scheme(adapter); 150 ixgbe_init_interrupt_scheme(adapter);
144 if (netif_running(netdev)) 151 if (netif_running(netdev))
145 netdev->netdev_ops->ndo_open(netdev); 152 netdev->netdev_ops->ndo_open(netdev);
@@ -154,9 +161,16 @@ static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state)
154 adapter->temp_dcb_cfg.pfc_mode_enable = false; 161 adapter->temp_dcb_cfg.pfc_mode_enable = false;
155 adapter->dcb_cfg.pfc_mode_enable = false; 162 adapter->dcb_cfg.pfc_mode_enable = false;
156 adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED; 163 adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED;
157 adapter->flags |= IXGBE_FLAG_RSS_ENABLED; 164 switch (adapter->hw.mac.type) {
158 if (adapter->hw.mac.type == ixgbe_mac_82599EB) 165 case ixgbe_mac_82599EB:
166 case ixgbe_mac_X540:
159 adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE; 167 adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE;
168 break;
169 default:
170 break;
171 }
172
173 ixgbe_setup_tc(netdev, 0);
160 174
161 ixgbe_init_interrupt_scheme(adapter); 175 ixgbe_init_interrupt_scheme(adapter);
162 if (netif_running(netdev)) 176 if (netif_running(netdev))
@@ -178,9 +192,14 @@ static void ixgbe_dcbnl_get_perm_hw_addr(struct net_device *netdev,
178 for (i = 0; i < netdev->addr_len; i++) 192 for (i = 0; i < netdev->addr_len; i++)
179 perm_addr[i] = adapter->hw.mac.perm_addr[i]; 193 perm_addr[i] = adapter->hw.mac.perm_addr[i];
180 194
181 if (adapter->hw.mac.type == ixgbe_mac_82599EB) { 195 switch (adapter->hw.mac.type) {
196 case ixgbe_mac_82599EB:
197 case ixgbe_mac_X540:
182 for (j = 0; j < netdev->addr_len; j++, i++) 198 for (j = 0; j < netdev->addr_len; j++, i++)
183 perm_addr[i] = adapter->hw.mac.san_addr[j]; 199 perm_addr[i] = adapter->hw.mac.san_addr[j];
200 break;
201 default:
202 break;
184 } 203 }
185} 204}
186 205
@@ -208,10 +227,8 @@ static void ixgbe_dcbnl_set_pg_tc_cfg_tx(struct net_device *netdev, int tc,
208 (adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_percent != 227 (adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_percent !=
209 adapter->dcb_cfg.tc_config[tc].path[0].bwg_percent) || 228 adapter->dcb_cfg.tc_config[tc].path[0].bwg_percent) ||
210 (adapter->temp_dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap != 229 (adapter->temp_dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap !=
211 adapter->dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap)) { 230 adapter->dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap))
212 adapter->dcb_set_bitmap |= BIT_PG_TX; 231 adapter->dcb_set_bitmap |= BIT_PG_TX;
213 adapter->dcb_set_bitmap |= BIT_RESETLINK;
214 }
215} 232}
216 233
217static void ixgbe_dcbnl_set_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id, 234static void ixgbe_dcbnl_set_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id,
@@ -222,10 +239,8 @@ static void ixgbe_dcbnl_set_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id,
222 adapter->temp_dcb_cfg.bw_percentage[0][bwg_id] = bw_pct; 239 adapter->temp_dcb_cfg.bw_percentage[0][bwg_id] = bw_pct;
223 240
224 if (adapter->temp_dcb_cfg.bw_percentage[0][bwg_id] != 241 if (adapter->temp_dcb_cfg.bw_percentage[0][bwg_id] !=
225 adapter->dcb_cfg.bw_percentage[0][bwg_id]) { 242 adapter->dcb_cfg.bw_percentage[0][bwg_id])
226 adapter->dcb_set_bitmap |= BIT_PG_TX; 243 adapter->dcb_set_bitmap |= BIT_PG_TX;
227 adapter->dcb_set_bitmap |= BIT_RESETLINK;
228 }
229} 244}
230 245
231static void ixgbe_dcbnl_set_pg_tc_cfg_rx(struct net_device *netdev, int tc, 246static void ixgbe_dcbnl_set_pg_tc_cfg_rx(struct net_device *netdev, int tc,
@@ -252,10 +267,8 @@ static void ixgbe_dcbnl_set_pg_tc_cfg_rx(struct net_device *netdev, int tc,
252 (adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_percent != 267 (adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_percent !=
253 adapter->dcb_cfg.tc_config[tc].path[1].bwg_percent) || 268 adapter->dcb_cfg.tc_config[tc].path[1].bwg_percent) ||
254 (adapter->temp_dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap != 269 (adapter->temp_dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap !=
255 adapter->dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap)) { 270 adapter->dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap))
256 adapter->dcb_set_bitmap |= BIT_PG_RX; 271 adapter->dcb_set_bitmap |= BIT_PG_RX;
257 adapter->dcb_set_bitmap |= BIT_RESETLINK;
258 }
259} 272}
260 273
261static void ixgbe_dcbnl_set_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id, 274static void ixgbe_dcbnl_set_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id,
@@ -266,10 +279,8 @@ static void ixgbe_dcbnl_set_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id,
266 adapter->temp_dcb_cfg.bw_percentage[1][bwg_id] = bw_pct; 279 adapter->temp_dcb_cfg.bw_percentage[1][bwg_id] = bw_pct;
267 280
268 if (adapter->temp_dcb_cfg.bw_percentage[1][bwg_id] != 281 if (adapter->temp_dcb_cfg.bw_percentage[1][bwg_id] !=
269 adapter->dcb_cfg.bw_percentage[1][bwg_id]) { 282 adapter->dcb_cfg.bw_percentage[1][bwg_id])
270 adapter->dcb_set_bitmap |= BIT_PG_RX; 283 adapter->dcb_set_bitmap |= BIT_PG_RX;
271 adapter->dcb_set_bitmap |= BIT_RESETLINK;
272 }
273} 284}
274 285
275static void ixgbe_dcbnl_get_pg_tc_cfg_tx(struct net_device *netdev, int tc, 286static void ixgbe_dcbnl_get_pg_tc_cfg_tx(struct net_device *netdev, int tc,
@@ -336,70 +347,120 @@ static void ixgbe_dcbnl_get_pfc_cfg(struct net_device *netdev, int priority,
336static u8 ixgbe_dcbnl_set_all(struct net_device *netdev) 347static u8 ixgbe_dcbnl_set_all(struct net_device *netdev)
337{ 348{
338 struct ixgbe_adapter *adapter = netdev_priv(netdev); 349 struct ixgbe_adapter *adapter = netdev_priv(netdev);
350 struct dcb_app app = {
351 .selector = DCB_APP_IDTYPE_ETHTYPE,
352 .protocol = ETH_P_FCOE,
353 };
354 u8 up = dcb_getapp(netdev, &app);
339 int ret; 355 int ret;
340 356
341 if (!adapter->dcb_set_bitmap)
342 return DCB_NO_HW_CHG;
343
344 ret = ixgbe_copy_dcb_cfg(&adapter->temp_dcb_cfg, &adapter->dcb_cfg, 357 ret = ixgbe_copy_dcb_cfg(&adapter->temp_dcb_cfg, &adapter->dcb_cfg,
345 adapter->ring_feature[RING_F_DCB].indices); 358 MAX_TRAFFIC_CLASS);
346
347 if (ret) 359 if (ret)
348 return DCB_NO_HW_CHG; 360 return DCB_NO_HW_CHG;
349 361
362 /* In IEEE mode app data must be parsed into DCBX format for
363 * hardware routines.
364 */
365 if (adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE)
366 up = (1 << up);
367
368#ifdef IXGBE_FCOE
369 if (up && (up != (1 << adapter->fcoe.up)))
370 adapter->dcb_set_bitmap |= BIT_APP_UPCHG;
371
350 /* 372 /*
351 * Only take down the adapter if the configuration change 373 * Only take down the adapter if an app change occurred. FCoE
352 * requires a reset. 374 * may shuffle tx rings in this case and this can not be done
375 * without a reset currently.
353 */ 376 */
354 if (adapter->dcb_set_bitmap & BIT_RESETLINK) { 377 if (adapter->dcb_set_bitmap & BIT_APP_UPCHG) {
355 while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state)) 378 while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state))
356 msleep(1); 379 usleep_range(1000, 2000);
357 380
358 if (adapter->dcb_set_bitmap & BIT_APP_UPCHG) { 381 ixgbe_fcoe_setapp(adapter, up);
359 if (netif_running(netdev)) 382
360 netdev->netdev_ops->ndo_stop(netdev); 383 if (netif_running(netdev))
361 ixgbe_clear_interrupt_scheme(adapter); 384 netdev->netdev_ops->ndo_stop(netdev);
362 } else { 385 ixgbe_clear_interrupt_scheme(adapter);
363 if (netif_running(netdev))
364 ixgbe_down(adapter);
365 }
366 } 386 }
387#endif
367 388
368 if (adapter->dcb_cfg.pfc_mode_enable) { 389 if (adapter->dcb_cfg.pfc_mode_enable) {
369 if ((adapter->hw.mac.type != ixgbe_mac_82598EB) && 390 switch (adapter->hw.mac.type) {
370 (adapter->hw.fc.current_mode != ixgbe_fc_pfc)) 391 case ixgbe_mac_82599EB:
371 adapter->last_lfc_mode = adapter->hw.fc.current_mode; 392 case ixgbe_mac_X540:
393 if (adapter->hw.fc.current_mode != ixgbe_fc_pfc)
394 adapter->last_lfc_mode =
395 adapter->hw.fc.current_mode;
396 break;
397 default:
398 break;
399 }
372 adapter->hw.fc.requested_mode = ixgbe_fc_pfc; 400 adapter->hw.fc.requested_mode = ixgbe_fc_pfc;
373 } else { 401 } else {
374 if (adapter->hw.mac.type != ixgbe_mac_82598EB) 402 switch (adapter->hw.mac.type) {
375 adapter->hw.fc.requested_mode = adapter->last_lfc_mode; 403 case ixgbe_mac_82598EB:
376 else
377 adapter->hw.fc.requested_mode = ixgbe_fc_none; 404 adapter->hw.fc.requested_mode = ixgbe_fc_none;
405 break;
406 case ixgbe_mac_82599EB:
407 case ixgbe_mac_X540:
408 adapter->hw.fc.requested_mode = adapter->last_lfc_mode;
409 break;
410 default:
411 break;
412 }
378 } 413 }
379 414
380 if (adapter->dcb_set_bitmap & BIT_RESETLINK) { 415#ifdef IXGBE_FCOE
381 if (adapter->dcb_set_bitmap & BIT_APP_UPCHG) { 416 if (adapter->dcb_set_bitmap & BIT_APP_UPCHG) {
382 ixgbe_init_interrupt_scheme(adapter); 417 ixgbe_init_interrupt_scheme(adapter);
383 if (netif_running(netdev)) 418 if (netif_running(netdev))
384 netdev->netdev_ops->ndo_open(netdev); 419 netdev->netdev_ops->ndo_open(netdev);
385 } else {
386 if (netif_running(netdev))
387 ixgbe_up(adapter);
388 }
389 ret = DCB_HW_CHG_RST; 420 ret = DCB_HW_CHG_RST;
390 } else if (adapter->dcb_set_bitmap & BIT_PFC) { 421 }
391 if (adapter->hw.mac.type == ixgbe_mac_82598EB) 422#endif
392 ixgbe_dcb_config_pfc_82598(&adapter->hw, 423
393 &adapter->dcb_cfg); 424 if (adapter->dcb_set_bitmap & BIT_PFC) {
394 else if (adapter->hw.mac.type == ixgbe_mac_82599EB) 425 u8 pfc_en;
395 ixgbe_dcb_config_pfc_82599(&adapter->hw, 426 ixgbe_dcb_unpack_pfc(&adapter->dcb_cfg, &pfc_en);
396 &adapter->dcb_cfg); 427 ixgbe_dcb_hw_pfc_config(&adapter->hw, pfc_en);
397 ret = DCB_HW_CHG; 428 ret = DCB_HW_CHG;
398 } 429 }
430
431 if (adapter->dcb_set_bitmap & (BIT_PG_TX|BIT_PG_RX)) {
432 u16 refill[MAX_TRAFFIC_CLASS], max[MAX_TRAFFIC_CLASS];
433 u8 bwg_id[MAX_TRAFFIC_CLASS], prio_type[MAX_TRAFFIC_CLASS];
434 /* Priority to TC mapping in CEE case default to 1:1 */
435 u8 prio_tc[MAX_TRAFFIC_CLASS] = {0, 1, 2, 3, 4, 5, 6, 7};
436 int max_frame = adapter->netdev->mtu + ETH_HLEN + ETH_FCS_LEN;
437
438#ifdef CONFIG_FCOE
439 if (adapter->netdev->features & NETIF_F_FCOE_MTU)
440 max_frame = max(max_frame, IXGBE_FCOE_JUMBO_FRAME_SIZE);
441#endif
442
443 ixgbe_dcb_calculate_tc_credits(&adapter->hw, &adapter->dcb_cfg,
444 max_frame, DCB_TX_CONFIG);
445 ixgbe_dcb_calculate_tc_credits(&adapter->hw, &adapter->dcb_cfg,
446 max_frame, DCB_RX_CONFIG);
447
448 ixgbe_dcb_unpack_refill(&adapter->dcb_cfg,
449 DCB_TX_CONFIG, refill);
450 ixgbe_dcb_unpack_max(&adapter->dcb_cfg, max);
451 ixgbe_dcb_unpack_bwgid(&adapter->dcb_cfg,
452 DCB_TX_CONFIG, bwg_id);
453 ixgbe_dcb_unpack_prio(&adapter->dcb_cfg,
454 DCB_TX_CONFIG, prio_type);
455
456 ixgbe_dcb_hw_ets_config(&adapter->hw, refill, max,
457 bwg_id, prio_type, prio_tc);
458 }
459
399 if (adapter->dcb_cfg.pfc_mode_enable) 460 if (adapter->dcb_cfg.pfc_mode_enable)
400 adapter->hw.fc.current_mode = ixgbe_fc_pfc; 461 adapter->hw.fc.current_mode = ixgbe_fc_pfc;
401 462
402 if (adapter->dcb_set_bitmap & BIT_RESETLINK) 463 if (adapter->dcb_set_bitmap & BIT_APP_UPCHG)
403 clear_bit(__IXGBE_RESETTING, &adapter->state); 464 clear_bit(__IXGBE_RESETTING, &adapter->state);
404 adapter->dcb_set_bitmap = 0x00; 465 adapter->dcb_set_bitmap = 0x00;
405 return ret; 466 return ret;
@@ -408,40 +469,38 @@ static u8 ixgbe_dcbnl_set_all(struct net_device *netdev)
408static u8 ixgbe_dcbnl_getcap(struct net_device *netdev, int capid, u8 *cap) 469static u8 ixgbe_dcbnl_getcap(struct net_device *netdev, int capid, u8 *cap)
409{ 470{
410 struct ixgbe_adapter *adapter = netdev_priv(netdev); 471 struct ixgbe_adapter *adapter = netdev_priv(netdev);
411 u8 rval = 0;
412 472
413 if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { 473 switch (capid) {
414 switch (capid) { 474 case DCB_CAP_ATTR_PG:
415 case DCB_CAP_ATTR_PG: 475 *cap = true;
416 *cap = true; 476 break;
417 break; 477 case DCB_CAP_ATTR_PFC:
418 case DCB_CAP_ATTR_PFC: 478 *cap = true;
419 *cap = true; 479 break;
420 break; 480 case DCB_CAP_ATTR_UP2TC:
421 case DCB_CAP_ATTR_UP2TC: 481 *cap = false;
422 *cap = false; 482 break;
423 break; 483 case DCB_CAP_ATTR_PG_TCS:
424 case DCB_CAP_ATTR_PG_TCS: 484 *cap = 0x80;
425 *cap = 0x80; 485 break;
426 break; 486 case DCB_CAP_ATTR_PFC_TCS:
427 case DCB_CAP_ATTR_PFC_TCS: 487 *cap = 0x80;
428 *cap = 0x80; 488 break;
429 break; 489 case DCB_CAP_ATTR_GSP:
430 case DCB_CAP_ATTR_GSP: 490 *cap = true;
431 *cap = true; 491 break;
432 break; 492 case DCB_CAP_ATTR_BCN:
433 case DCB_CAP_ATTR_BCN: 493 *cap = false;
434 *cap = false; 494 break;
435 break; 495 case DCB_CAP_ATTR_DCBX:
436 default: 496 *cap = adapter->dcbx_cap;
437 rval = -EINVAL; 497 break;
438 break; 498 default:
439 } 499 *cap = false;
440 } else { 500 break;
441 rval = -EINVAL;
442 } 501 }
443 502
444 return rval; 503 return 0;
445} 504}
446 505
447static u8 ixgbe_dcbnl_getnumtcs(struct net_device *netdev, int tcid, u8 *num) 506static u8 ixgbe_dcbnl_getnumtcs(struct net_device *netdev, int tcid, u8 *num)
@@ -502,65 +561,205 @@ static void ixgbe_dcbnl_setpfcstate(struct net_device *netdev, u8 state)
502 */ 561 */
503static u8 ixgbe_dcbnl_getapp(struct net_device *netdev, u8 idtype, u16 id) 562static u8 ixgbe_dcbnl_getapp(struct net_device *netdev, u8 idtype, u16 id)
504{ 563{
505 u8 rval = 0; 564 struct ixgbe_adapter *adapter = netdev_priv(netdev);
565 struct dcb_app app = {
566 .selector = idtype,
567 .protocol = id,
568 };
506 569
507 switch (idtype) { 570 if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_CEE))
508 case DCB_APP_IDTYPE_ETHTYPE: 571 return 0;
509#ifdef IXGBE_FCOE 572
510 if (id == ETH_P_FCOE) 573 return dcb_getapp(netdev, &app);
511 rval = ixgbe_fcoe_getapp(netdev_priv(netdev)); 574}
512#endif 575
513 break; 576static int ixgbe_dcbnl_ieee_getets(struct net_device *dev,
514 case DCB_APP_IDTYPE_PORTNUM: 577 struct ieee_ets *ets)
515 break; 578{
516 default: 579 struct ixgbe_adapter *adapter = netdev_priv(dev);
517 break; 580 struct ieee_ets *my_ets = adapter->ixgbe_ieee_ets;
581
582 /* No IEEE PFC settings available */
583 if (!my_ets)
584 return -EINVAL;
585
586 ets->ets_cap = MAX_TRAFFIC_CLASS;
587 ets->cbs = my_ets->cbs;
588 memcpy(ets->tc_tx_bw, my_ets->tc_tx_bw, sizeof(ets->tc_tx_bw));
589 memcpy(ets->tc_rx_bw, my_ets->tc_rx_bw, sizeof(ets->tc_rx_bw));
590 memcpy(ets->tc_tsa, my_ets->tc_tsa, sizeof(ets->tc_tsa));
591 memcpy(ets->prio_tc, my_ets->prio_tc, sizeof(ets->prio_tc));
592 return 0;
593}
594
595static int ixgbe_dcbnl_ieee_setets(struct net_device *dev,
596 struct ieee_ets *ets)
597{
598 struct ixgbe_adapter *adapter = netdev_priv(dev);
599 __u16 refill[IEEE_8021QAZ_MAX_TCS], max[IEEE_8021QAZ_MAX_TCS];
600 __u8 prio_type[IEEE_8021QAZ_MAX_TCS];
601 int max_frame = dev->mtu + ETH_HLEN + ETH_FCS_LEN;
602 int i, err;
603 __u64 *p = (__u64 *) ets->prio_tc;
604 /* naively give each TC a bwg to map onto CEE hardware */
605 __u8 bwg_id[IEEE_8021QAZ_MAX_TCS] = {0, 1, 2, 3, 4, 5, 6, 7};
606
607 if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE))
608 return -EINVAL;
609
610 if (!adapter->ixgbe_ieee_ets) {
611 adapter->ixgbe_ieee_ets = kmalloc(sizeof(struct ieee_ets),
612 GFP_KERNEL);
613 if (!adapter->ixgbe_ieee_ets)
614 return -ENOMEM;
518 } 615 }
519 return rval; 616
617 memcpy(adapter->ixgbe_ieee_ets, ets, sizeof(*adapter->ixgbe_ieee_ets));
618
619 /* Map TSA onto CEE prio type */
620 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
621 switch (ets->tc_tsa[i]) {
622 case IEEE_8021QAZ_TSA_STRICT:
623 prio_type[i] = 2;
624 break;
625 case IEEE_8021QAZ_TSA_ETS:
626 prio_type[i] = 0;
627 break;
628 default:
629 /* Hardware only supports priority strict or
630 * ETS transmission selection algorithms if
631 * we receive some other value from dcbnl
632 * throw an error
633 */
634 return -EINVAL;
635 }
636 }
637
638 if (*p)
639 ixgbe_dcbnl_set_state(dev, 1);
640 else
641 ixgbe_dcbnl_set_state(dev, 0);
642
643 ixgbe_ieee_credits(ets->tc_tx_bw, refill, max, max_frame);
644 err = ixgbe_dcb_hw_ets_config(&adapter->hw, refill, max,
645 bwg_id, prio_type, ets->prio_tc);
646 return err;
520} 647}
521 648
522/** 649static int ixgbe_dcbnl_ieee_getpfc(struct net_device *dev,
523 * ixgbe_dcbnl_setapp - set the DCBX application user priority 650 struct ieee_pfc *pfc)
524 * @netdev : the corresponding netdev 651{
525 * @idtype : identifies the id as ether type or TCP/UDP port number 652 struct ixgbe_adapter *adapter = netdev_priv(dev);
526 * @id: id is either ether type or TCP/UDP port number 653 struct ieee_pfc *my_pfc = adapter->ixgbe_ieee_pfc;
527 * @up: the 802.1p user priority bitmap 654 int i;
528 * 655
529 * Returns : 0 on success or 1 on error 656 /* No IEEE PFC settings available */
530 */ 657 if (!my_pfc)
531static u8 ixgbe_dcbnl_setapp(struct net_device *netdev, 658 return -EINVAL;
532 u8 idtype, u16 id, u8 up) 659
660 pfc->pfc_cap = MAX_TRAFFIC_CLASS;
661 pfc->pfc_en = my_pfc->pfc_en;
662 pfc->mbc = my_pfc->mbc;
663 pfc->delay = my_pfc->delay;
664
665 for (i = 0; i < MAX_TRAFFIC_CLASS; i++) {
666 pfc->requests[i] = adapter->stats.pxoffrxc[i];
667 pfc->indications[i] = adapter->stats.pxofftxc[i];
668 }
669
670 return 0;
671}
672
673static int ixgbe_dcbnl_ieee_setpfc(struct net_device *dev,
674 struct ieee_pfc *pfc)
675{
676 struct ixgbe_adapter *adapter = netdev_priv(dev);
677 int err;
678
679 if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE))
680 return -EINVAL;
681
682 if (!adapter->ixgbe_ieee_pfc) {
683 adapter->ixgbe_ieee_pfc = kmalloc(sizeof(struct ieee_pfc),
684 GFP_KERNEL);
685 if (!adapter->ixgbe_ieee_pfc)
686 return -ENOMEM;
687 }
688
689 memcpy(adapter->ixgbe_ieee_pfc, pfc, sizeof(*adapter->ixgbe_ieee_pfc));
690 err = ixgbe_dcb_hw_pfc_config(&adapter->hw, pfc->pfc_en);
691 return err;
692}
693
694static int ixgbe_dcbnl_ieee_setapp(struct net_device *dev,
695 struct dcb_app *app)
533{ 696{
534 u8 rval = 1; 697 struct ixgbe_adapter *adapter = netdev_priv(dev);
698
699 if (!(adapter->dcbx_cap & DCB_CAP_DCBX_VER_IEEE))
700 return -EINVAL;
701
702 dcb_setapp(dev, app);
535 703
536 switch (idtype) {
537 case DCB_APP_IDTYPE_ETHTYPE:
538#ifdef IXGBE_FCOE 704#ifdef IXGBE_FCOE
539 if (id == ETH_P_FCOE) { 705 if (app->selector == 1 && app->protocol == ETH_P_FCOE &&
540 u8 tc; 706 adapter->fcoe.tc == app->priority)
541 struct ixgbe_adapter *adapter; 707 ixgbe_dcbnl_set_all(dev);
542
543 adapter = netdev_priv(netdev);
544 tc = adapter->fcoe.tc;
545 rval = ixgbe_fcoe_setapp(adapter, up);
546 if ((!rval) && (tc != adapter->fcoe.tc) &&
547 (adapter->flags & IXGBE_FLAG_DCB_ENABLED) &&
548 (adapter->flags & IXGBE_FLAG_FCOE_ENABLED)) {
549 adapter->dcb_set_bitmap |= BIT_APP_UPCHG;
550 adapter->dcb_set_bitmap |= BIT_RESETLINK;
551 }
552 }
553#endif 708#endif
554 break; 709 return 0;
555 case DCB_APP_IDTYPE_PORTNUM: 710}
556 break; 711
557 default: 712static u8 ixgbe_dcbnl_getdcbx(struct net_device *dev)
558 break; 713{
714 struct ixgbe_adapter *adapter = netdev_priv(dev);
715 return adapter->dcbx_cap;
716}
717
718static u8 ixgbe_dcbnl_setdcbx(struct net_device *dev, u8 mode)
719{
720 struct ixgbe_adapter *adapter = netdev_priv(dev);
721 struct ieee_ets ets = {0};
722 struct ieee_pfc pfc = {0};
723
724 /* no support for LLD_MANAGED modes or CEE+IEEE */
725 if ((mode & DCB_CAP_DCBX_LLD_MANAGED) ||
726 ((mode & DCB_CAP_DCBX_VER_IEEE) && (mode & DCB_CAP_DCBX_VER_CEE)) ||
727 !(mode & DCB_CAP_DCBX_HOST))
728 return 1;
729
730 if (mode == adapter->dcbx_cap)
731 return 0;
732
733 adapter->dcbx_cap = mode;
734
735 /* ETS and PFC defaults */
736 ets.ets_cap = 8;
737 pfc.pfc_cap = 8;
738
739 if (mode & DCB_CAP_DCBX_VER_IEEE) {
740 ixgbe_dcbnl_ieee_setets(dev, &ets);
741 ixgbe_dcbnl_ieee_setpfc(dev, &pfc);
742 } else if (mode & DCB_CAP_DCBX_VER_CEE) {
743 adapter->dcb_set_bitmap |= (BIT_PFC & BIT_PG_TX & BIT_PG_RX);
744 ixgbe_dcbnl_set_all(dev);
745 } else {
746 /* Drop into single TC mode strict priority as this
747 * indicates CEE and IEEE versions are disabled
748 */
749 ixgbe_dcbnl_ieee_setets(dev, &ets);
750 ixgbe_dcbnl_ieee_setpfc(dev, &pfc);
751 ixgbe_dcbnl_set_state(dev, 0);
559 } 752 }
560 return rval; 753
754 return 0;
561} 755}
562 756
563const struct dcbnl_rtnl_ops dcbnl_ops = { 757const struct dcbnl_rtnl_ops dcbnl_ops = {
758 .ieee_getets = ixgbe_dcbnl_ieee_getets,
759 .ieee_setets = ixgbe_dcbnl_ieee_setets,
760 .ieee_getpfc = ixgbe_dcbnl_ieee_getpfc,
761 .ieee_setpfc = ixgbe_dcbnl_ieee_setpfc,
762 .ieee_setapp = ixgbe_dcbnl_ieee_setapp,
564 .getstate = ixgbe_dcbnl_get_state, 763 .getstate = ixgbe_dcbnl_get_state,
565 .setstate = ixgbe_dcbnl_set_state, 764 .setstate = ixgbe_dcbnl_set_state,
566 .getpermhwaddr = ixgbe_dcbnl_get_perm_hw_addr, 765 .getpermhwaddr = ixgbe_dcbnl_get_perm_hw_addr,
@@ -581,6 +780,6 @@ const struct dcbnl_rtnl_ops dcbnl_ops = {
581 .getpfcstate = ixgbe_dcbnl_getpfcstate, 780 .getpfcstate = ixgbe_dcbnl_getpfcstate,
582 .setpfcstate = ixgbe_dcbnl_setpfcstate, 781 .setpfcstate = ixgbe_dcbnl_setpfcstate,
583 .getapp = ixgbe_dcbnl_getapp, 782 .getapp = ixgbe_dcbnl_getapp,
584 .setapp = ixgbe_dcbnl_setapp, 783 .getdcbx = ixgbe_dcbnl_getdcbx,
784 .setdcbx = ixgbe_dcbnl_setdcbx,
585}; 785};
586