1 /*******************************************************************************
3 Intel 10 Gigabit PCI Express Linux driver
4 Copyright(c) 1999 - 2008 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>
32 /* Callbacks for DCB netlink in the kernel */
33 #define BIT_DCB_MODE 0x01
35 #define BIT_PG_RX 0x04
36 #define BIT_PG_TX 0x08
38 int ixgbe_copy_dcb_cfg(struct ixgbe_dcb_config
*src_dcb_cfg
,
39 struct ixgbe_dcb_config
*dst_dcb_cfg
, int tc_max
)
41 struct tc_configuration
*src_tc_cfg
= NULL
;
42 struct tc_configuration
*dst_tc_cfg
= NULL
;
45 if (!src_dcb_cfg
|| !dst_dcb_cfg
)
48 for (i
= DCB_PG_ATTR_TC_0
; i
< tc_max
+ DCB_PG_ATTR_TC_0
; i
++) {
49 src_tc_cfg
= &src_dcb_cfg
->tc_config
[i
- DCB_PG_ATTR_TC_0
];
50 dst_tc_cfg
= &dst_dcb_cfg
->tc_config
[i
- DCB_PG_ATTR_TC_0
];
52 dst_tc_cfg
->path
[DCB_TX_CONFIG
].prio_type
=
53 src_tc_cfg
->path
[DCB_TX_CONFIG
].prio_type
;
55 dst_tc_cfg
->path
[DCB_TX_CONFIG
].bwg_id
=
56 src_tc_cfg
->path
[DCB_TX_CONFIG
].bwg_id
;
58 dst_tc_cfg
->path
[DCB_TX_CONFIG
].bwg_percent
=
59 src_tc_cfg
->path
[DCB_TX_CONFIG
].bwg_percent
;
61 dst_tc_cfg
->path
[DCB_TX_CONFIG
].up_to_tc_bitmap
=
62 src_tc_cfg
->path
[DCB_TX_CONFIG
].up_to_tc_bitmap
;
64 dst_tc_cfg
->path
[DCB_RX_CONFIG
].prio_type
=
65 src_tc_cfg
->path
[DCB_RX_CONFIG
].prio_type
;
67 dst_tc_cfg
->path
[DCB_RX_CONFIG
].bwg_id
=
68 src_tc_cfg
->path
[DCB_RX_CONFIG
].bwg_id
;
70 dst_tc_cfg
->path
[DCB_RX_CONFIG
].bwg_percent
=
71 src_tc_cfg
->path
[DCB_RX_CONFIG
].bwg_percent
;
73 dst_tc_cfg
->path
[DCB_RX_CONFIG
].up_to_tc_bitmap
=
74 src_tc_cfg
->path
[DCB_RX_CONFIG
].up_to_tc_bitmap
;
77 for (i
= DCB_PG_ATTR_BW_ID_0
; i
< DCB_PG_ATTR_BW_ID_MAX
; i
++) {
78 dst_dcb_cfg
->bw_percentage
[DCB_TX_CONFIG
]
79 [i
-DCB_PG_ATTR_BW_ID_0
] = src_dcb_cfg
->bw_percentage
80 [DCB_TX_CONFIG
][i
-DCB_PG_ATTR_BW_ID_0
];
81 dst_dcb_cfg
->bw_percentage
[DCB_RX_CONFIG
]
82 [i
-DCB_PG_ATTR_BW_ID_0
] = src_dcb_cfg
->bw_percentage
83 [DCB_RX_CONFIG
][i
-DCB_PG_ATTR_BW_ID_0
];
86 for (i
= DCB_PFC_UP_ATTR_0
; i
< DCB_PFC_UP_ATTR_MAX
; i
++) {
87 dst_dcb_cfg
->tc_config
[i
- DCB_PFC_UP_ATTR_0
].dcb_pfc
=
88 src_dcb_cfg
->tc_config
[i
- DCB_PFC_UP_ATTR_0
].dcb_pfc
;
94 static u8
ixgbe_dcbnl_get_state(struct net_device
*netdev
)
96 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
98 DPRINTK(DRV
, INFO
, "Get DCB Admin Mode.\n");
100 return !!(adapter
->flags
& IXGBE_FLAG_DCB_ENABLED
);
103 static u16
ixgbe_dcb_select_queue(struct net_device
*dev
, struct sk_buff
*skb
)
105 /* All traffic should default to class 0 */
109 static void ixgbe_dcbnl_set_state(struct net_device
*netdev
, u8 state
)
111 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
113 DPRINTK(DRV
, INFO
, "Set DCB Admin Mode.\n");
117 if (adapter
->flags
& IXGBE_FLAG_DCB_ENABLED
) {
120 if (netif_running(netdev
))
121 netdev
->stop(netdev
);
122 ixgbe_reset_interrupt_capability(adapter
);
123 ixgbe_napi_del_all(adapter
);
124 kfree(adapter
->tx_ring
);
125 kfree(adapter
->rx_ring
);
126 adapter
->tx_ring
= NULL
;
127 adapter
->rx_ring
= NULL
;
128 netdev
->select_queue
= &ixgbe_dcb_select_queue
;
130 adapter
->flags
&= ~IXGBE_FLAG_RSS_ENABLED
;
131 adapter
->flags
|= IXGBE_FLAG_DCB_ENABLED
;
132 ixgbe_init_interrupt_scheme(adapter
);
133 ixgbe_napi_add_all(adapter
);
134 if (netif_running(netdev
))
135 netdev
->open(netdev
);
139 if (adapter
->flags
& IXGBE_FLAG_DCB_ENABLED
) {
140 if (netif_running(netdev
))
141 netdev
->stop(netdev
);
142 ixgbe_reset_interrupt_capability(adapter
);
143 ixgbe_napi_del_all(adapter
);
144 kfree(adapter
->tx_ring
);
145 kfree(adapter
->rx_ring
);
146 adapter
->tx_ring
= NULL
;
147 adapter
->rx_ring
= NULL
;
148 netdev
->select_queue
= NULL
;
150 adapter
->flags
&= ~IXGBE_FLAG_DCB_ENABLED
;
151 adapter
->flags
|= IXGBE_FLAG_RSS_ENABLED
;
152 ixgbe_init_interrupt_scheme(adapter
);
153 ixgbe_napi_add_all(adapter
);
154 if (netif_running(netdev
))
155 netdev
->open(netdev
);
162 static void ixgbe_dcbnl_get_perm_hw_addr(struct net_device
*netdev
,
165 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
168 for (i
= 0; i
< netdev
->addr_len
; i
++)
169 perm_addr
[i
] = adapter
->hw
.mac
.perm_addr
[i
];
172 static void ixgbe_dcbnl_set_pg_tc_cfg_tx(struct net_device
*netdev
, int tc
,
173 u8 prio
, u8 bwg_id
, u8 bw_pct
,
176 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
178 if (prio
!= DCB_ATTR_VALUE_UNDEFINED
)
179 adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[0].prio_type
= prio
;
180 if (bwg_id
!= DCB_ATTR_VALUE_UNDEFINED
)
181 adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[0].bwg_id
= bwg_id
;
182 if (bw_pct
!= DCB_ATTR_VALUE_UNDEFINED
)
183 adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[0].bwg_percent
=
185 if (up_map
!= DCB_ATTR_VALUE_UNDEFINED
)
186 adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[0].up_to_tc_bitmap
=
189 if ((adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[0].prio_type
!=
190 adapter
->dcb_cfg
.tc_config
[tc
].path
[0].prio_type
) ||
191 (adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[0].bwg_id
!=
192 adapter
->dcb_cfg
.tc_config
[tc
].path
[0].bwg_id
) ||
193 (adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[0].bwg_percent
!=
194 adapter
->dcb_cfg
.tc_config
[tc
].path
[0].bwg_percent
) ||
195 (adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[0].up_to_tc_bitmap
!=
196 adapter
->dcb_cfg
.tc_config
[tc
].path
[0].up_to_tc_bitmap
))
197 adapter
->dcb_set_bitmap
|= BIT_PG_TX
;
200 static void ixgbe_dcbnl_set_pg_bwg_cfg_tx(struct net_device
*netdev
, int bwg_id
,
203 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
205 adapter
->temp_dcb_cfg
.bw_percentage
[0][bwg_id
] = bw_pct
;
207 if (adapter
->temp_dcb_cfg
.bw_percentage
[0][bwg_id
] !=
208 adapter
->dcb_cfg
.bw_percentage
[0][bwg_id
])
209 adapter
->dcb_set_bitmap
|= BIT_PG_RX
;
212 static void ixgbe_dcbnl_set_pg_tc_cfg_rx(struct net_device
*netdev
, int tc
,
213 u8 prio
, u8 bwg_id
, u8 bw_pct
,
216 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
218 if (prio
!= DCB_ATTR_VALUE_UNDEFINED
)
219 adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[1].prio_type
= prio
;
220 if (bwg_id
!= DCB_ATTR_VALUE_UNDEFINED
)
221 adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[1].bwg_id
= bwg_id
;
222 if (bw_pct
!= DCB_ATTR_VALUE_UNDEFINED
)
223 adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[1].bwg_percent
=
225 if (up_map
!= DCB_ATTR_VALUE_UNDEFINED
)
226 adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[1].up_to_tc_bitmap
=
229 if ((adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[1].prio_type
!=
230 adapter
->dcb_cfg
.tc_config
[tc
].path
[1].prio_type
) ||
231 (adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[1].bwg_id
!=
232 adapter
->dcb_cfg
.tc_config
[tc
].path
[1].bwg_id
) ||
233 (adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[1].bwg_percent
!=
234 adapter
->dcb_cfg
.tc_config
[tc
].path
[1].bwg_percent
) ||
235 (adapter
->temp_dcb_cfg
.tc_config
[tc
].path
[1].up_to_tc_bitmap
!=
236 adapter
->dcb_cfg
.tc_config
[tc
].path
[1].up_to_tc_bitmap
))
237 adapter
->dcb_set_bitmap
|= BIT_PG_RX
;
240 static void ixgbe_dcbnl_set_pg_bwg_cfg_rx(struct net_device
*netdev
, int bwg_id
,
243 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
245 adapter
->temp_dcb_cfg
.bw_percentage
[1][bwg_id
] = bw_pct
;
247 if (adapter
->temp_dcb_cfg
.bw_percentage
[1][bwg_id
] !=
248 adapter
->dcb_cfg
.bw_percentage
[1][bwg_id
])
249 adapter
->dcb_set_bitmap
|= BIT_PG_RX
;
252 static void ixgbe_dcbnl_get_pg_tc_cfg_tx(struct net_device
*netdev
, int tc
,
253 u8
*prio
, u8
*bwg_id
, u8
*bw_pct
,
256 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
258 *prio
= adapter
->dcb_cfg
.tc_config
[tc
].path
[0].prio_type
;
259 *bwg_id
= adapter
->dcb_cfg
.tc_config
[tc
].path
[0].bwg_id
;
260 *bw_pct
= adapter
->dcb_cfg
.tc_config
[tc
].path
[0].bwg_percent
;
261 *up_map
= adapter
->dcb_cfg
.tc_config
[tc
].path
[0].up_to_tc_bitmap
;
264 static void ixgbe_dcbnl_get_pg_bwg_cfg_tx(struct net_device
*netdev
, int bwg_id
,
267 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
269 *bw_pct
= adapter
->dcb_cfg
.bw_percentage
[0][bwg_id
];
272 static void ixgbe_dcbnl_get_pg_tc_cfg_rx(struct net_device
*netdev
, int tc
,
273 u8
*prio
, u8
*bwg_id
, u8
*bw_pct
,
276 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
278 *prio
= adapter
->dcb_cfg
.tc_config
[tc
].path
[1].prio_type
;
279 *bwg_id
= adapter
->dcb_cfg
.tc_config
[tc
].path
[1].bwg_id
;
280 *bw_pct
= adapter
->dcb_cfg
.tc_config
[tc
].path
[1].bwg_percent
;
281 *up_map
= adapter
->dcb_cfg
.tc_config
[tc
].path
[1].up_to_tc_bitmap
;
284 static void ixgbe_dcbnl_get_pg_bwg_cfg_rx(struct net_device
*netdev
, int bwg_id
,
287 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
289 *bw_pct
= adapter
->dcb_cfg
.bw_percentage
[1][bwg_id
];
292 static void ixgbe_dcbnl_set_pfc_cfg(struct net_device
*netdev
, int priority
,
295 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
297 adapter
->temp_dcb_cfg
.tc_config
[priority
].dcb_pfc
= setting
;
298 if (adapter
->temp_dcb_cfg
.tc_config
[priority
].dcb_pfc
!=
299 adapter
->dcb_cfg
.tc_config
[priority
].dcb_pfc
)
300 adapter
->dcb_set_bitmap
|= BIT_PFC
;
303 static void ixgbe_dcbnl_get_pfc_cfg(struct net_device
*netdev
, int priority
,
306 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
308 *setting
= adapter
->dcb_cfg
.tc_config
[priority
].dcb_pfc
;
311 static u8
ixgbe_dcbnl_set_all(struct net_device
*netdev
)
313 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
316 if (!adapter
->dcb_set_bitmap
)
319 while (test_and_set_bit(__IXGBE_RESETTING
, &adapter
->state
))
322 if (netif_running(netdev
))
325 ret
= ixgbe_copy_dcb_cfg(&adapter
->temp_dcb_cfg
, &adapter
->dcb_cfg
,
326 adapter
->ring_feature
[RING_F_DCB
].indices
);
328 clear_bit(__IXGBE_RESETTING
, &adapter
->state
);
332 if (netif_running(netdev
))
335 adapter
->dcb_set_bitmap
= 0x00;
336 clear_bit(__IXGBE_RESETTING
, &adapter
->state
);
340 static u8
ixgbe_dcbnl_getcap(struct net_device
*netdev
, int capid
, u8
*cap
)
342 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
345 if (adapter
->flags
& IXGBE_FLAG_DCB_ENABLED
) {
347 case DCB_CAP_ATTR_PG
:
350 case DCB_CAP_ATTR_PFC
:
353 case DCB_CAP_ATTR_UP2TC
:
356 case DCB_CAP_ATTR_PG_TCS
:
359 case DCB_CAP_ATTR_PFC_TCS
:
362 case DCB_CAP_ATTR_GSP
:
365 case DCB_CAP_ATTR_BCN
:
379 static u8
ixgbe_dcbnl_getnumtcs(struct net_device
*netdev
, int tcid
, u8
*num
)
381 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
384 if (adapter
->flags
& IXGBE_FLAG_DCB_ENABLED
) {
386 case DCB_NUMTCS_ATTR_PG
:
387 *num
= MAX_TRAFFIC_CLASS
;
389 case DCB_NUMTCS_ATTR_PFC
:
390 *num
= MAX_TRAFFIC_CLASS
;
403 static u8
ixgbe_dcbnl_setnumtcs(struct net_device
*netdev
, int tcid
, u8 num
)
408 static u8
ixgbe_dcbnl_getpfcstate(struct net_device
*netdev
)
410 struct ixgbe_adapter
*adapter
= netdev_priv(netdev
);
412 return !!(adapter
->flags
& IXGBE_FLAG_DCB_ENABLED
);
415 static void ixgbe_dcbnl_setpfcstate(struct net_device
*netdev
, u8 state
)
420 struct dcbnl_rtnl_ops dcbnl_ops
= {
421 .getstate
= ixgbe_dcbnl_get_state
,
422 .setstate
= ixgbe_dcbnl_set_state
,
423 .getpermhwaddr
= ixgbe_dcbnl_get_perm_hw_addr
,
424 .setpgtccfgtx
= ixgbe_dcbnl_set_pg_tc_cfg_tx
,
425 .setpgbwgcfgtx
= ixgbe_dcbnl_set_pg_bwg_cfg_tx
,
426 .setpgtccfgrx
= ixgbe_dcbnl_set_pg_tc_cfg_rx
,
427 .setpgbwgcfgrx
= ixgbe_dcbnl_set_pg_bwg_cfg_rx
,
428 .getpgtccfgtx
= ixgbe_dcbnl_get_pg_tc_cfg_tx
,
429 .getpgbwgcfgtx
= ixgbe_dcbnl_get_pg_bwg_cfg_tx
,
430 .getpgtccfgrx
= ixgbe_dcbnl_get_pg_tc_cfg_rx
,
431 .getpgbwgcfgrx
= ixgbe_dcbnl_get_pg_bwg_cfg_rx
,
432 .setpfccfg
= ixgbe_dcbnl_set_pfc_cfg
,
433 .getpfccfg
= ixgbe_dcbnl_get_pfc_cfg
,
434 .setall
= ixgbe_dcbnl_set_all
,
435 .getcap
= ixgbe_dcbnl_getcap
,
436 .getnumtcs
= ixgbe_dcbnl_getnumtcs
,
437 .setnumtcs
= ixgbe_dcbnl_setnumtcs
,
438 .getpfcstate
= ixgbe_dcbnl_getpfcstate
,
439 .setpfcstate
= ixgbe_dcbnl_setpfcstate