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 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
142 adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE;
143 adapter->flags &= ~IXGBE_FLAG_FDIR_PERFECT_CAPABLE;
145 adapter->flags |= IXGBE_FLAG_DCB_ENABLED;
146 ixgbe_init_interrupt_scheme(adapter);
147 if (netif_running(netdev))
148 netdev->netdev_ops->ndo_open(netdev);
151 if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
152 if (netif_running(netdev))
153 netdev->netdev_ops->ndo_stop(netdev);
154 ixgbe_clear_interrupt_scheme(adapter);
156 adapter->hw.fc.requested_mode = adapter->last_lfc_mode;
157 adapter->temp_dcb_cfg.pfc_mode_enable = false;
158 adapter->dcb_cfg.pfc_mode_enable = false;
159 adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED;
160 adapter->flags |= IXGBE_FLAG_RSS_ENABLED;
161 if (adapter->hw.mac.type == ixgbe_mac_82599EB)
162 adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE;
163 ixgbe_init_interrupt_scheme(adapter);
164 if (netif_running(netdev))
165 netdev->netdev_ops->ndo_open(netdev);
172 static void ixgbe_dcbnl_get_perm_hw_addr(struct net_device *netdev,
175 struct ixgbe_adapter *adapter = netdev_priv(netdev);
178 for (i = 0; i < netdev->addr_len; i++)
179 perm_addr[i] = adapter->hw.mac.perm_addr[i];
181 if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
182 for (j = 0; j < netdev->addr_len; j++, i++)
183 perm_addr[i] = adapter->hw.mac.san_addr[j];
187 static void ixgbe_dcbnl_set_pg_tc_cfg_tx(struct net_device *netdev, int tc,
188 u8 prio, u8 bwg_id, u8 bw_pct,
191 struct ixgbe_adapter *adapter = netdev_priv(netdev);
193 if (prio != DCB_ATTR_VALUE_UNDEFINED)
194 adapter->temp_dcb_cfg.tc_config[tc].path[0].prio_type = prio;
195 if (bwg_id != DCB_ATTR_VALUE_UNDEFINED)
196 adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_id = bwg_id;
197 if (bw_pct != DCB_ATTR_VALUE_UNDEFINED)
198 adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_percent =
200 if (up_map != DCB_ATTR_VALUE_UNDEFINED)
201 adapter->temp_dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap =
204 if ((adapter->temp_dcb_cfg.tc_config[tc].path[0].prio_type !=
205 adapter->dcb_cfg.tc_config[tc].path[0].prio_type) ||
206 (adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_id !=
207 adapter->dcb_cfg.tc_config[tc].path[0].bwg_id) ||
208 (adapter->temp_dcb_cfg.tc_config[tc].path[0].bwg_percent !=
209 adapter->dcb_cfg.tc_config[tc].path[0].bwg_percent) ||
210 (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)) {
212 adapter->dcb_set_bitmap |= BIT_PG_TX;
213 adapter->dcb_set_bitmap |= BIT_RESETLINK;
217 static void ixgbe_dcbnl_set_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id,
220 struct ixgbe_adapter *adapter = netdev_priv(netdev);
222 adapter->temp_dcb_cfg.bw_percentage[0][bwg_id] = bw_pct;
224 if (adapter->temp_dcb_cfg.bw_percentage[0][bwg_id] !=
225 adapter->dcb_cfg.bw_percentage[0][bwg_id]) {
226 adapter->dcb_set_bitmap |= BIT_PG_RX;
227 adapter->dcb_set_bitmap |= BIT_RESETLINK;
231 static void ixgbe_dcbnl_set_pg_tc_cfg_rx(struct net_device *netdev, int tc,
232 u8 prio, u8 bwg_id, u8 bw_pct,
235 struct ixgbe_adapter *adapter = netdev_priv(netdev);
237 if (prio != DCB_ATTR_VALUE_UNDEFINED)
238 adapter->temp_dcb_cfg.tc_config[tc].path[1].prio_type = prio;
239 if (bwg_id != DCB_ATTR_VALUE_UNDEFINED)
240 adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_id = bwg_id;
241 if (bw_pct != DCB_ATTR_VALUE_UNDEFINED)
242 adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_percent =
244 if (up_map != DCB_ATTR_VALUE_UNDEFINED)
245 adapter->temp_dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap =
248 if ((adapter->temp_dcb_cfg.tc_config[tc].path[1].prio_type !=
249 adapter->dcb_cfg.tc_config[tc].path[1].prio_type) ||
250 (adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_id !=
251 adapter->dcb_cfg.tc_config[tc].path[1].bwg_id) ||
252 (adapter->temp_dcb_cfg.tc_config[tc].path[1].bwg_percent !=
253 adapter->dcb_cfg.tc_config[tc].path[1].bwg_percent) ||
254 (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)) {
256 adapter->dcb_set_bitmap |= BIT_PG_RX;
257 adapter->dcb_set_bitmap |= BIT_RESETLINK;
261 static void ixgbe_dcbnl_set_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id,
264 struct ixgbe_adapter *adapter = netdev_priv(netdev);
266 adapter->temp_dcb_cfg.bw_percentage[1][bwg_id] = bw_pct;
268 if (adapter->temp_dcb_cfg.bw_percentage[1][bwg_id] !=
269 adapter->dcb_cfg.bw_percentage[1][bwg_id]) {
270 adapter->dcb_set_bitmap |= BIT_PG_RX;
271 adapter->dcb_set_bitmap |= BIT_RESETLINK;
275 static void ixgbe_dcbnl_get_pg_tc_cfg_tx(struct net_device *netdev, int tc,
276 u8 *prio, u8 *bwg_id, u8 *bw_pct,
279 struct ixgbe_adapter *adapter = netdev_priv(netdev);
281 *prio = adapter->dcb_cfg.tc_config[tc].path[0].prio_type;
282 *bwg_id = adapter->dcb_cfg.tc_config[tc].path[0].bwg_id;
283 *bw_pct = adapter->dcb_cfg.tc_config[tc].path[0].bwg_percent;
284 *up_map = adapter->dcb_cfg.tc_config[tc].path[0].up_to_tc_bitmap;
287 static void ixgbe_dcbnl_get_pg_bwg_cfg_tx(struct net_device *netdev, int bwg_id,
290 struct ixgbe_adapter *adapter = netdev_priv(netdev);
292 *bw_pct = adapter->dcb_cfg.bw_percentage[0][bwg_id];
295 static void ixgbe_dcbnl_get_pg_tc_cfg_rx(struct net_device *netdev, int tc,
296 u8 *prio, u8 *bwg_id, u8 *bw_pct,
299 struct ixgbe_adapter *adapter = netdev_priv(netdev);
301 *prio = adapter->dcb_cfg.tc_config[tc].path[1].prio_type;
302 *bwg_id = adapter->dcb_cfg.tc_config[tc].path[1].bwg_id;
303 *bw_pct = adapter->dcb_cfg.tc_config[tc].path[1].bwg_percent;
304 *up_map = adapter->dcb_cfg.tc_config[tc].path[1].up_to_tc_bitmap;
307 static void ixgbe_dcbnl_get_pg_bwg_cfg_rx(struct net_device *netdev, int bwg_id,
310 struct ixgbe_adapter *adapter = netdev_priv(netdev);
312 *bw_pct = adapter->dcb_cfg.bw_percentage[1][bwg_id];
315 static void ixgbe_dcbnl_set_pfc_cfg(struct net_device *netdev, int priority,
318 struct ixgbe_adapter *adapter = netdev_priv(netdev);
320 adapter->temp_dcb_cfg.tc_config[priority].dcb_pfc = setting;
321 if (adapter->temp_dcb_cfg.tc_config[priority].dcb_pfc !=
322 adapter->dcb_cfg.tc_config[priority].dcb_pfc) {
323 adapter->dcb_set_bitmap |= BIT_PFC;
324 adapter->temp_dcb_cfg.pfc_mode_enable = true;
328 static void ixgbe_dcbnl_get_pfc_cfg(struct net_device *netdev, int priority,
331 struct ixgbe_adapter *adapter = netdev_priv(netdev);
333 *setting = adapter->dcb_cfg.tc_config[priority].dcb_pfc;
336 static u8 ixgbe_dcbnl_set_all(struct net_device *netdev)
338 struct ixgbe_adapter *adapter = netdev_priv(netdev);
341 if (!adapter->dcb_set_bitmap)
342 return DCB_NO_HW_CHG;
345 * Only take down the adapter if the configuration change
348 if (adapter->dcb_set_bitmap & BIT_RESETLINK) {
349 while (test_and_set_bit(__IXGBE_RESETTING, &adapter->state))
352 if (netif_running(netdev))
356 ret = ixgbe_copy_dcb_cfg(&adapter->temp_dcb_cfg, &adapter->dcb_cfg,
357 adapter->ring_feature[RING_F_DCB].indices);
359 if (adapter->dcb_set_bitmap & BIT_RESETLINK)
360 clear_bit(__IXGBE_RESETTING, &adapter->state);
361 return DCB_NO_HW_CHG;
364 if (adapter->dcb_cfg.pfc_mode_enable) {
365 if ((adapter->hw.mac.type != ixgbe_mac_82598EB) &&
366 (adapter->hw.fc.current_mode != ixgbe_fc_pfc))
367 adapter->last_lfc_mode = adapter->hw.fc.current_mode;
368 adapter->hw.fc.requested_mode = ixgbe_fc_pfc;
370 if (adapter->hw.mac.type != ixgbe_mac_82598EB)
371 adapter->hw.fc.requested_mode = adapter->last_lfc_mode;
373 adapter->hw.fc.requested_mode = ixgbe_fc_none;
376 if (adapter->dcb_set_bitmap & BIT_RESETLINK) {
377 if (netif_running(netdev))
379 ret = DCB_HW_CHG_RST;
380 } else if (adapter->dcb_set_bitmap & BIT_PFC) {
381 if (adapter->hw.mac.type == ixgbe_mac_82598EB)
382 ixgbe_dcb_config_pfc_82598(&adapter->hw,
384 else if (adapter->hw.mac.type == ixgbe_mac_82599EB)
385 ixgbe_dcb_config_pfc_82599(&adapter->hw,
389 if (adapter->dcb_cfg.pfc_mode_enable)
390 adapter->hw.fc.current_mode = ixgbe_fc_pfc;
392 if (adapter->dcb_set_bitmap & BIT_RESETLINK)
393 clear_bit(__IXGBE_RESETTING, &adapter->state);
394 adapter->dcb_set_bitmap = 0x00;
398 static u8 ixgbe_dcbnl_getcap(struct net_device *netdev, int capid, u8 *cap)
400 struct ixgbe_adapter *adapter = netdev_priv(netdev);
403 if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
405 case DCB_CAP_ATTR_PG:
408 case DCB_CAP_ATTR_PFC:
411 case DCB_CAP_ATTR_UP2TC:
414 case DCB_CAP_ATTR_PG_TCS:
417 case DCB_CAP_ATTR_PFC_TCS:
420 case DCB_CAP_ATTR_GSP:
423 case DCB_CAP_ATTR_BCN:
437 static u8 ixgbe_dcbnl_getnumtcs(struct net_device *netdev, int tcid, u8 *num)
439 struct ixgbe_adapter *adapter = netdev_priv(netdev);
442 if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
444 case DCB_NUMTCS_ATTR_PG:
445 *num = MAX_TRAFFIC_CLASS;
447 case DCB_NUMTCS_ATTR_PFC:
448 *num = MAX_TRAFFIC_CLASS;
461 static u8 ixgbe_dcbnl_setnumtcs(struct net_device *netdev, int tcid, u8 num)
466 static u8 ixgbe_dcbnl_getpfcstate(struct net_device *netdev)
468 struct ixgbe_adapter *adapter = netdev_priv(netdev);
470 return adapter->dcb_cfg.pfc_mode_enable;
473 static void ixgbe_dcbnl_setpfcstate(struct net_device *netdev, u8 state)
475 struct ixgbe_adapter *adapter = netdev_priv(netdev);
477 adapter->temp_dcb_cfg.pfc_mode_enable = state;
478 if (adapter->temp_dcb_cfg.pfc_mode_enable !=
479 adapter->dcb_cfg.pfc_mode_enable)
480 adapter->dcb_set_bitmap |= BIT_PFC;
484 struct dcbnl_rtnl_ops dcbnl_ops = {
485 .getstate = ixgbe_dcbnl_get_state,
486 .setstate = ixgbe_dcbnl_set_state,
487 .getpermhwaddr = ixgbe_dcbnl_get_perm_hw_addr,
488 .setpgtccfgtx = ixgbe_dcbnl_set_pg_tc_cfg_tx,
489 .setpgbwgcfgtx = ixgbe_dcbnl_set_pg_bwg_cfg_tx,
490 .setpgtccfgrx = ixgbe_dcbnl_set_pg_tc_cfg_rx,
491 .setpgbwgcfgrx = ixgbe_dcbnl_set_pg_bwg_cfg_rx,
492 .getpgtccfgtx = ixgbe_dcbnl_get_pg_tc_cfg_tx,
493 .getpgbwgcfgtx = ixgbe_dcbnl_get_pg_bwg_cfg_tx,
494 .getpgtccfgrx = ixgbe_dcbnl_get_pg_tc_cfg_rx,
495 .getpgbwgcfgrx = ixgbe_dcbnl_get_pg_bwg_cfg_rx,
496 .setpfccfg = ixgbe_dcbnl_set_pfc_cfg,
497 .getpfccfg = ixgbe_dcbnl_get_pfc_cfg,
498 .setall = ixgbe_dcbnl_set_all,
499 .getcap = ixgbe_dcbnl_getcap,
500 .getnumtcs = ixgbe_dcbnl_getnumtcs,
501 .setnumtcs = ixgbe_dcbnl_setnumtcs,
502 .getpfcstate = ixgbe_dcbnl_getpfcstate,
503 .setpfcstate = ixgbe_dcbnl_setpfcstate,