1 /*******************************************************************************
3 Intel 10 Gigabit PCI Express Linux driver
4 Copyright(c) 1999 - 2009 Intel Corporation.
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,
8 version 2, as published by the Free Software Foundation.
10 This program is distributed in the hope it will be useful, but WITHOUT
11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 You should have received a copy of the GNU General Public License along with
16 this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
19 The full GNU General Public License is included in this distribution in
20 the file called "COPYING".
23 Linux NICS <linux.nics@intel.com>
24 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
25 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *******************************************************************************/
30 #include <linux/dcbnl.h>
31 #include "ixgbe_dcb_82598.h"
32 #include "ixgbe_dcb_82599.h"
34 /* Callbacks for DCB netlink in the kernel */
35 #define BIT_DCB_MODE 0x01
37 #define BIT_PG_RX 0x04
38 #define BIT_PG_TX 0x08
39 #define BIT_RESETLINK 0x40
40 #define BIT_LINKSPEED 0x80
42 /* Responses for the DCB_C_SET_ALL command */
43 #define DCB_HW_CHG_RST 0 /* DCB configuration changed with reset */
44 #define DCB_NO_HW_CHG 1 /* DCB configuration did not change */
45 #define DCB_HW_CHG 2 /* DCB configuration changed, no reset */
47 int ixgbe_copy_dcb_cfg(struct ixgbe_dcb_config *src_dcb_cfg,
48 struct ixgbe_dcb_config *dst_dcb_cfg, int tc_max)
50 struct tc_configuration *src_tc_cfg = NULL;
51 struct tc_configuration *dst_tc_cfg = NULL;
54 if (!src_dcb_cfg || !dst_dcb_cfg)
57 for (i = DCB_PG_ATTR_TC_0; i < tc_max + DCB_PG_ATTR_TC_0; i++) {
58 src_tc_cfg = &src_dcb_cfg->tc_config[i - DCB_PG_ATTR_TC_0];
59 dst_tc_cfg = &dst_dcb_cfg->tc_config[i - DCB_PG_ATTR_TC_0];
61 dst_tc_cfg->path[DCB_TX_CONFIG].prio_type =
62 src_tc_cfg->path[DCB_TX_CONFIG].prio_type;
64 dst_tc_cfg->path[DCB_TX_CONFIG].bwg_id =
65 src_tc_cfg->path[DCB_TX_CONFIG].bwg_id;
67 dst_tc_cfg->path[DCB_TX_CONFIG].bwg_percent =
68 src_tc_cfg->path[DCB_TX_CONFIG].bwg_percent;
70 dst_tc_cfg->path[DCB_TX_CONFIG].up_to_tc_bitmap =
71 src_tc_cfg->path[DCB_TX_CONFIG].up_to_tc_bitmap;
73 dst_tc_cfg->path[DCB_RX_CONFIG].prio_type =
74 src_tc_cfg->path[DCB_RX_CONFIG].prio_type;
76 dst_tc_cfg->path[DCB_RX_CONFIG].bwg_id =
77 src_tc_cfg->path[DCB_RX_CONFIG].bwg_id;
79 dst_tc_cfg->path[DCB_RX_CONFIG].bwg_percent =
80 src_tc_cfg->path[DCB_RX_CONFIG].bwg_percent;
82 dst_tc_cfg->path[DCB_RX_CONFIG].up_to_tc_bitmap =
83 src_tc_cfg->path[DCB_RX_CONFIG].up_to_tc_bitmap;
86 for (i = DCB_PG_ATTR_BW_ID_0; i < DCB_PG_ATTR_BW_ID_MAX; i++) {
87 dst_dcb_cfg->bw_percentage[DCB_TX_CONFIG]
88 [i-DCB_PG_ATTR_BW_ID_0] = src_dcb_cfg->bw_percentage
89 [DCB_TX_CONFIG][i-DCB_PG_ATTR_BW_ID_0];
90 dst_dcb_cfg->bw_percentage[DCB_RX_CONFIG]
91 [i-DCB_PG_ATTR_BW_ID_0] = src_dcb_cfg->bw_percentage
92 [DCB_RX_CONFIG][i-DCB_PG_ATTR_BW_ID_0];
95 for (i = DCB_PFC_UP_ATTR_0; i < DCB_PFC_UP_ATTR_MAX; i++) {
96 dst_dcb_cfg->tc_config[i - DCB_PFC_UP_ATTR_0].dcb_pfc =
97 src_dcb_cfg->tc_config[i - DCB_PFC_UP_ATTR_0].dcb_pfc;
100 dst_dcb_cfg->pfc_mode_enable = src_dcb_cfg->pfc_mode_enable;
105 static u8 ixgbe_dcbnl_get_state(struct net_device *netdev)
107 struct ixgbe_adapter *adapter = netdev_priv(netdev);
109 DPRINTK(DRV, INFO, "Get DCB Admin Mode.\n");
111 return !!(adapter->flags & IXGBE_FLAG_DCB_ENABLED);
114 static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state)
117 struct ixgbe_adapter *adapter = netdev_priv(netdev);
119 DPRINTK(DRV, INFO, "Set DCB Admin Mode.\n");
123 if (adapter->flags & IXGBE_FLAG_DCB_ENABLED)
126 if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) {
127 DPRINTK(DRV, ERR, "Enable failed, needs MSI-X\n");
132 if (netif_running(netdev))
133 netdev->netdev_ops->ndo_stop(netdev);
134 ixgbe_clear_interrupt_scheme(adapter);
136 if (adapter->hw.mac.type == ixgbe_mac_82598EB) {
137 adapter->last_lfc_mode = adapter->hw.fc.current_mode;
138 adapter->hw.fc.requested_mode = ixgbe_fc_none;
140 adapter->flags &= ~IXGBE_FLAG_RSS_ENABLED;
141 adapter->flags |= IXGBE_FLAG_DCB_ENABLED;
142 ixgbe_init_interrupt_scheme(adapter);
143 if (netif_running(netdev))
144 netdev->netdev_ops->ndo_open(netdev);
147 if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
148 if (netif_running(netdev))
149 netdev->netdev_ops->ndo_stop(netdev);
150 ixgbe_clear_interrupt_scheme(adapter);
152 adapter->hw.fc.requested_mode = adapter->last_lfc_mode;
153 adapter->temp_dcb_cfg.pfc_mode_enable = false;
154 adapter->dcb_cfg.pfc_mode_enable = false;
155 adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED;
156 adapter->flags |= IXGBE_FLAG_RSS_ENABLED;
157 ixgbe_init_interrupt_scheme(adapter);
158 if (netif_running(netdev))
159 netdev->netdev_ops->ndo_open(netdev);
166 static void ixgbe_dcbnl_get_perm_hw_addr(struct net_device *netdev,
169 struct ixgbe_adapter *adapter = netdev_priv(netdev);
172 for (i = 0; i < netdev->addr_len; i++)
173 perm_addr[i] = adapter->hw.mac.perm_addr[i];
175 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
176 for (j = 0; j < netdev->addr_len; j++, i++)
177 perm_addr[i] = adapter->hw.mac.san_addr[j];
181 static void ixgbe_dcbnl_set_pg_tc_cfg_tx(struct net_device *netdev, int tc,
182 u8 prio, u8 bwg_id, u8 bw_pct,
185 struct ixgbe_adapter *adapter = netdev_priv(netdev);
187 if (prio != DCB_ATTR_VALUE_UNDEFINED)
188 adapter->temp_dcb_cfg.tc_config[tc].path[0].prio_type = prio;
189 if (bwg_id != DCB_ATTR_VALUE_UNDEFINED)
190 adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_id = bwg_id;
191 if (bw_pct != DCB_ATTR_VALUE_UNDEFINED)
192 adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_percent =
194 if (up_map != DCB_ATTR_VALUE_UNDEFINED)
195 adapter->temp_dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap =
198 if ((adapter->temp_dcb_cfg.tc_config[tc].path[0].prio_type !=
199 adapter->dcb_cfg.tc_config[tc].path[0].prio_type) ||
200 (adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_id !=
201 adapter->dcb_cfg.tc_config[tc].path[0].bwg_id) ||
202 (adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_percent !=
203 adapter->dcb_cfg.tc_config[tc].path[0].bwg_percent) ||
204 (adapter->temp_dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap !=
205 adapter->dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap)) {
206 adapter->dcb_set_bitmap |= BIT_PG_TX;
207 adapter->dcb_set_bitmap |= BIT_RESETLINK;
211 static void ixgbe_dcbnl_set_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id,
214 struct ixgbe_adapter *adapter = netdev_priv(netdev);
216 adapter->temp_dcb_cfg.bw_percentage[0][bwg_id] = bw_pct;
218 if (adapter->temp_dcb_cfg.bw_percentage[0][bwg_id] !=
219 adapter->dcb_cfg.bw_percentage[0][bwg_id]) {
220 adapter->dcb_set_bitmap |= BIT_PG_RX;
221 adapter->dcb_set_bitmap |= BIT_RESETLINK;
225 static void ixgbe_dcbnl_set_pg_tc_cfg_rx(struct net_device *netdev, int tc,
226 u8 prio, u8 bwg_id, u8 bw_pct,
229 struct ixgbe_adapter *adapter = netdev_priv(netdev);
231 if (prio != DCB_ATTR_VALUE_UNDEFINED)
232 adapter->temp_dcb_cfg.tc_config[tc].path[1].prio_type = prio;
233 if (bwg_id != DCB_ATTR_VALUE_UNDEFINED)
234 adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_id = bwg_id;
235 if (bw_pct != DCB_ATTR_VALUE_UNDEFINED)
236 adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_percent =
238 if (up_map != DCB_ATTR_VALUE_UNDEFINED)
239 adapter->temp_dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap =
242 if ((adapter->temp_dcb_cfg.tc_config[tc].path[1].prio_type !=
243 adapter->dcb_cfg.tc_config[tc].path[1].prio_type) ||
244 (adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_id !=
245 adapter->dcb_cfg.tc_config[tc].path[1].bwg_id) ||
246 (adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_percent !=
247 adapter->dcb_cfg.tc_config[tc].path[1].bwg_percent) ||
248 (adapter->temp_dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap !=
249 adapter->dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap)) {
250 adapter->dcb_set_bitmap |= BIT_PG_RX;
251 adapter->dcb_set_bitmap |= BIT_RESETLINK;
255 static void ixgbe_dcbnl_set_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id,
258 struct ixgbe_adapter *adapter = netdev_priv(netdev);
260 adapter->temp_dcb_cfg.bw_percentage[1][bwg_id] = bw_pct;
262 if (adapter->temp_dcb_cfg.bw_percentage[1][bwg_id] !=
263 adapter->dcb_cfg.bw_percentage[1][bwg_id]) {
264 adapter->dcb_set_bitmap |= BIT_PG_RX;
265 adapter->dcb_set_bitmap |= BIT_RESETLINK;
269 static void ixgbe_dcbnl_get_pg_tc_cfg_tx(struct net_device *netdev, int tc,
270 u8 *prio, u8 *bwg_id, u8 *bw_pct,
273 struct ixgbe_adapter *adapter = netdev_priv(netdev);
275 *prio = adapter->dcb_cfg.tc_config[tc].path[0].prio_type;
276 *bwg_id = adapter->dcb_cfg.tc_config[tc].path[0].bwg_id;
277 *bw_pct = adapter->dcb_cfg.tc_config[tc].path[0].bwg_percent;
278 *up_map = adapter->dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap;
281 static void ixgbe_dcbnl_get_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id,
284 struct ixgbe_adapter *adapter = netdev_priv(netdev);
286 *bw_pct = adapter->dcb_cfg.bw_percentage[0][bwg_id];
289 static void ixgbe_dcbnl_get_pg_tc_cfg_rx(struct net_device *netdev, int tc,
290 u8 *prio, u8 *bwg_id, u8 *bw_pct,
293 struct ixgbe_adapter *adapter = netdev_priv(netdev);
295 *prio = adapter->dcb_cfg.tc_config[tc].path[1].prio_type;
296 *bwg_id = adapter->dcb_cfg.tc_config[tc].path[1].bwg_id;
297 *bw_pct = adapter->dcb_cfg.tc_config[tc].path[1].bwg_percent;
298 *up_map = adapter->dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap;
301 static void ixgbe_dcbnl_get_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id,
304 struct ixgbe_adapter *adapter = netdev_priv(netdev);
306 *bw_pct = adapter->dcb_cfg.bw_percentage[1][bwg_id];
309 static void ixgbe_dcbnl_set_pfc_cfg(struct net_device *netdev, int priority,
312 struct ixgbe_adapter *adapter = netdev_priv(netdev);
314 adapter->temp_dcb_cfg.tc_config[priority].dcb_pfc = setting;
315 if (adapter->temp_dcb_cfg.tc_config[priority].dcb_pfc !=
316 adapter->dcb_cfg.tc_config[priority].dcb_pfc) {
317 adapter->dcb_set_bitmap |= BIT_PFC;
318 adapter->temp_dcb_cfg.pfc_mode_enable = true;
322 static void ixgbe_dcbnl_get_pfc_cfg(struct net_device *netdev, int priority,
325 struct ixgbe_adapter *adapter = netdev_priv(netdev);
327 *setting = adapter->dcb_cfg.tc_config[priority].dcb_pfc;
330 static u8 ixgbe_dcbnl_set_all(struct net_device *netdev)
332 struct ixgbe_adapter *adapter = netdev_priv(netdev);
335 if (!adapter->dcb_set_bitmap)
336 return DCB_NO_HW_CHG;
339 * Only take down the adapter if the configuration change
342 if (adapter->dcb_set_bitmap & BIT_RESETLINK) {
343 while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state))
346 if (netif_running(netdev))
350 ret = ixgbe_copy_dcb_cfg(&adapter->temp_dcb_cfg, &adapter->dcb_cfg,
351 adapter->ring_feature[RING_F_DCB].indices);
353 if (adapter->dcb_set_bitmap & BIT_RESETLINK)
354 clear_bit(__IXGBE_RESETTING, &adapter->state);
355 return DCB_NO_HW_CHG;
358 if (adapter->dcb_cfg.pfc_mode_enable) {
359 if ((adapter->hw.mac.type != ixgbe_mac_82598EB) &&
360 (adapter->hw.fc.current_mode != ixgbe_fc_pfc))
361 adapter->last_lfc_mode = adapter->hw.fc.current_mode;
362 adapter->hw.fc.requested_mode = ixgbe_fc_pfc;
364 if (adapter->hw.mac.type != ixgbe_mac_82598EB)
365 adapter->hw.fc.requested_mode = adapter->last_lfc_mode;
367 adapter->hw.fc.requested_mode = ixgbe_fc_none;
370 if (adapter->dcb_set_bitmap & BIT_RESETLINK) {
371 if (netif_running(netdev))
373 ret = DCB_HW_CHG_RST;
374 } else if (adapter->dcb_set_bitmap & BIT_PFC) {
375 if (adapter->hw.mac.type == ixgbe_mac_82598EB)
376 ixgbe_dcb_config_pfc_82598(&adapter->hw,
378 else if (adapter->hw.mac.type == ixgbe_mac_82599EB)
379 ixgbe_dcb_config_pfc_82599(&adapter->hw,
383 if (adapter->dcb_cfg.pfc_mode_enable)
384 adapter->hw.fc.current_mode = ixgbe_fc_pfc;
386 if (adapter->dcb_set_bitmap & BIT_RESETLINK)
387 clear_bit(__IXGBE_RESETTING, &adapter->state);
388 adapter->dcb_set_bitmap = 0x00;
392 static u8 ixgbe_dcbnl_getcap(struct net_device *netdev, int capid, u8 *cap)
394 struct ixgbe_adapter *adapter = netdev_priv(netdev);
397 if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
399 case DCB_CAP_ATTR_PG:
402 case DCB_CAP_ATTR_PFC:
405 case DCB_CAP_ATTR_UP2TC:
408 case DCB_CAP_ATTR_PG_TCS:
411 case DCB_CAP_ATTR_PFC_TCS:
414 case DCB_CAP_ATTR_GSP:
417 case DCB_CAP_ATTR_BCN:
431 static u8 ixgbe_dcbnl_getnumtcs(struct net_device *netdev, int tcid, u8 *num)
433 struct ixgbe_adapter *adapter = netdev_priv(netdev);
436 if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
438 case DCB_NUMTCS_ATTR_PG:
439 *num = MAX_TRAFFIC_CLASS;
441 case DCB_NUMTCS_ATTR_PFC:
442 *num = MAX_TRAFFIC_CLASS;
455 static u8 ixgbe_dcbnl_setnumtcs(struct net_device *netdev, int tcid, u8 num)
460 static u8 ixgbe_dcbnl_getpfcstate(struct net_device *netdev)
462 struct ixgbe_adapter *adapter = netdev_priv(netdev);
464 return adapter->dcb_cfg.pfc_mode_enable;
467 static void ixgbe_dcbnl_setpfcstate(struct net_device *netdev, u8 state)
469 struct ixgbe_adapter *adapter = netdev_priv(netdev);
471 adapter->temp_dcb_cfg.pfc_mode_enable = state;
472 if (adapter->temp_dcb_cfg.pfc_mode_enable !=
473 adapter->dcb_cfg.pfc_mode_enable)
474 adapter->dcb_set_bitmap |= BIT_PFC;
478 struct dcbnl_rtnl_ops dcbnl_ops = {
479 .getstate = ixgbe_dcbnl_get_state,
480 .setstate = ixgbe_dcbnl_set_state,
481 .getpermhwaddr = ixgbe_dcbnl_get_perm_hw_addr,
482 .setpgtccfgtx = ixgbe_dcbnl_set_pg_tc_cfg_tx,
483 .setpgbwgcfgtx = ixgbe_dcbnl_set_pg_bwg_cfg_tx,
484 .setpgtccfgrx = ixgbe_dcbnl_set_pg_tc_cfg_rx,
485 .setpgbwgcfgrx = ixgbe_dcbnl_set_pg_bwg_cfg_rx,
486 .getpgtccfgtx = ixgbe_dcbnl_get_pg_tc_cfg_tx,
487 .getpgbwgcfgtx = ixgbe_dcbnl_get_pg_bwg_cfg_tx,
488 .getpgtccfgrx = ixgbe_dcbnl_get_pg_tc_cfg_rx,
489 .getpgbwgcfgrx = ixgbe_dcbnl_get_pg_bwg_cfg_rx,
490 .setpfccfg = ixgbe_dcbnl_set_pfc_cfg,
491 .getpfccfg = ixgbe_dcbnl_get_pfc_cfg,
492 .setall = ixgbe_dcbnl_set_all,
493 .getcap = ixgbe_dcbnl_getcap,
494 .getnumtcs = ixgbe_dcbnl_getnumtcs,
495 .setnumtcs = ixgbe_dcbnl_setnumtcs,
496 .getpfcstate = ixgbe_dcbnl_getpfcstate,
497 .setpfcstate = ixgbe_dcbnl_setpfcstate,