Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
[linux-2.6.git] / include / linux / dcbnl.h
1 /*
2  * Copyright (c) 2008-2011, Intel Corporation.
3  *
4  * This program is free software; you can redistribute it and/or modify it
5  * under the terms and conditions of the GNU General Public License,
6  * version 2, as published by the Free Software Foundation.
7  *
8  * This program is distributed in the hope it will be useful, but WITHOUT
9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
11  * more details.
12  *
13  * You should have received a copy of the GNU General Public License along with
14  * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
15  * Place - Suite 330, Boston, MA 02111-1307 USA.
16  *
17  * Author: Lucy Liu <lucy.liu@intel.com>
18  */
19
20 #ifndef __LINUX_DCBNL_H__
21 #define __LINUX_DCBNL_H__
22
23 #include <linux/types.h>
24
25 /* IEEE 802.1Qaz std supported values */
26 #define IEEE_8021QAZ_MAX_TCS    8
27
28 #define IEEE_8021QAZ_TSA_STRICT         0
29 #define IEEE_8021QAZ_TSA_CB_SHAPER      1
30 #define IEEE_8021QAZ_TSA_ETS            2
31 #define IEEE_8021QAZ_TSA_VENDOR         255
32
33 /* This structure contains the IEEE 802.1Qaz ETS managed object
34  *
35  * @willing: willing bit in ETS configuration TLV
36  * @ets_cap: indicates supported capacity of ets feature
37  * @cbs: credit based shaper ets algorithm supported
38  * @tc_tx_bw: tc tx bandwidth indexed by traffic class
39  * @tc_rx_bw: tc rx bandwidth indexed by traffic class
40  * @tc_tsa: TSA Assignment table, indexed by traffic class
41  * @prio_tc: priority assignment table mapping 8021Qp to traffic class
42  * @tc_reco_bw: recommended tc bandwidth indexed by traffic class for TLV
43  * @tc_reco_tsa: recommended tc bandwidth indexed by traffic class for TLV
44  * @reco_prio_tc: recommended tc tx bandwidth indexed by traffic class for TLV
45  *
46  * Recommended values are used to set fields in the ETS recommendation TLV
47  * with hardware offloaded LLDP.
48  *
49  * ----
50  *  TSA Assignment 8 bit identifiers
51  *      0       strict priority
52  *      1       credit-based shaper
53  *      2       enhanced transmission selection
54  *      3-254   reserved
55  *      255     vendor specific
56  */
57 struct ieee_ets {
58         __u8    willing;
59         __u8    ets_cap;
60         __u8    cbs;
61         __u8    tc_tx_bw[IEEE_8021QAZ_MAX_TCS];
62         __u8    tc_rx_bw[IEEE_8021QAZ_MAX_TCS];
63         __u8    tc_tsa[IEEE_8021QAZ_MAX_TCS];
64         __u8    prio_tc[IEEE_8021QAZ_MAX_TCS];
65         __u8    tc_reco_bw[IEEE_8021QAZ_MAX_TCS];
66         __u8    tc_reco_tsa[IEEE_8021QAZ_MAX_TCS];
67         __u8    reco_prio_tc[IEEE_8021QAZ_MAX_TCS];
68 };
69
70 /* This structure contains the IEEE 802.1Qaz PFC managed object
71  *
72  * @pfc_cap: Indicates the number of traffic classes on the local device
73  *           that may simultaneously have PFC enabled.
74  * @pfc_en: bitmap indicating pfc enabled traffic classes
75  * @mbc: enable macsec bypass capability
76  * @delay: the allowance made for a round-trip propagation delay of the
77  *         link in bits.
78  * @requests: count of the sent pfc frames
79  * @indications: count of the received pfc frames
80  */
81 struct ieee_pfc {
82         __u8    pfc_cap;
83         __u8    pfc_en;
84         __u8    mbc;
85         __u16   delay;
86         __u64   requests[IEEE_8021QAZ_MAX_TCS];
87         __u64   indications[IEEE_8021QAZ_MAX_TCS];
88 };
89
90 /* CEE DCBX std supported values */
91 #define CEE_DCBX_MAX_PGS        8
92 #define CEE_DCBX_MAX_PRIO       8
93
94 /**
95  * struct cee_pg - CEE Priority-Group managed object
96  *
97  * @willing: willing bit in the PG tlv
98  * @error: error bit in the PG tlv
99  * @pg_en: enable bit of the PG feature
100  * @tcs_supported: number of traffic classes supported
101  * @pg_bw: bandwidth percentage for each priority group
102  * @prio_pg: priority to PG mapping indexed by priority
103  */
104 struct cee_pg {
105         __u8    willing;
106         __u8    error;
107         __u8    pg_en;
108         __u8    tcs_supported;
109         __u8    pg_bw[CEE_DCBX_MAX_PGS];
110         __u8    prio_pg[CEE_DCBX_MAX_PGS];
111 };
112
113 /**
114  * struct cee_pfc - CEE PFC managed object
115  *
116  * @willing: willing bit in the PFC tlv
117  * @error: error bit in the PFC tlv
118  * @pfc_en: bitmap indicating pfc enabled traffic classes
119  * @tcs_supported: number of traffic classes supported
120  */
121 struct cee_pfc {
122         __u8    willing;
123         __u8    error;
124         __u8    pfc_en;
125         __u8    tcs_supported;
126 };
127
128 /* IEEE 802.1Qaz std supported values */
129 #define IEEE_8021QAZ_APP_SEL_ETHERTYPE  1
130 #define IEEE_8021QAZ_APP_SEL_STREAM     2
131 #define IEEE_8021QAZ_APP_SEL_DGRAM      3
132 #define IEEE_8021QAZ_APP_SEL_ANY        4
133
134 /* This structure contains the IEEE 802.1Qaz APP managed object. This
135  * object is also used for the CEE std as well. There is no difference
136  * between the objects.
137  *
138  * @selector: protocol identifier type
139  * @protocol: protocol of type indicated
140  * @priority: 3-bit unsigned integer indicating priority
141  *
142  * ----
143  *  Selector field values
144  *      0       Reserved
145  *      1       Ethertype
146  *      2       Well known port number over TCP or SCTP
147  *      3       Well known port number over UDP or DCCP
148  *      4       Well known port number over TCP, SCTP, UDP, or DCCP
149  *      5-7     Reserved
150  */
151 struct dcb_app {
152         __u8    selector;
153         __u8    priority;
154         __u16   protocol;
155 };
156
157 /**
158  * struct dcb_peer_app_info - APP feature information sent by the peer
159  *
160  * @willing: willing bit in the peer APP tlv
161  * @error: error bit in the peer APP tlv
162  *
163  * In addition to this information the full peer APP tlv also contains
164  * a table of 'app_count' APP objects defined above.
165  */
166 struct dcb_peer_app_info {
167         __u8    willing;
168         __u8    error;
169 };
170
171 struct dcbmsg {
172         __u8               dcb_family;
173         __u8               cmd;
174         __u16              dcb_pad;
175 };
176
177 /**
178  * enum dcbnl_commands - supported DCB commands
179  *
180  * @DCB_CMD_UNDEFINED: unspecified command to catch errors
181  * @DCB_CMD_GSTATE: request the state of DCB in the device
182  * @DCB_CMD_SSTATE: set the state of DCB in the device
183  * @DCB_CMD_PGTX_GCFG: request the priority group configuration for Tx
184  * @DCB_CMD_PGTX_SCFG: set the priority group configuration for Tx
185  * @DCB_CMD_PGRX_GCFG: request the priority group configuration for Rx
186  * @DCB_CMD_PGRX_SCFG: set the priority group configuration for Rx
187  * @DCB_CMD_PFC_GCFG: request the priority flow control configuration
188  * @DCB_CMD_PFC_SCFG: set the priority flow control configuration
189  * @DCB_CMD_SET_ALL: apply all changes to the underlying device
190  * @DCB_CMD_GPERM_HWADDR: get the permanent MAC address of the underlying
191  *                        device.  Only useful when using bonding.
192  * @DCB_CMD_GCAP: request the DCB capabilities of the device
193  * @DCB_CMD_GNUMTCS: get the number of traffic classes currently supported
194  * @DCB_CMD_SNUMTCS: set the number of traffic classes
195  * @DCB_CMD_GBCN: set backward congestion notification configuration
196  * @DCB_CMD_SBCN: get backward congestion notification configration.
197  * @DCB_CMD_GAPP: get application protocol configuration
198  * @DCB_CMD_SAPP: set application protocol configuration
199  * @DCB_CMD_IEEE_SET: set IEEE 802.1Qaz configuration
200  * @DCB_CMD_IEEE_GET: get IEEE 802.1Qaz configuration
201  * @DCB_CMD_GDCBX: get DCBX engine configuration
202  * @DCB_CMD_SDCBX: set DCBX engine configuration
203  * @DCB_CMD_GFEATCFG: get DCBX features flags
204  * @DCB_CMD_SFEATCFG: set DCBX features negotiation flags
205  * @DCB_CMD_CEE_GET: get CEE aggregated configuration
206  */
207 enum dcbnl_commands {
208         DCB_CMD_UNDEFINED,
209
210         DCB_CMD_GSTATE,
211         DCB_CMD_SSTATE,
212
213         DCB_CMD_PGTX_GCFG,
214         DCB_CMD_PGTX_SCFG,
215         DCB_CMD_PGRX_GCFG,
216         DCB_CMD_PGRX_SCFG,
217
218         DCB_CMD_PFC_GCFG,
219         DCB_CMD_PFC_SCFG,
220
221         DCB_CMD_SET_ALL,
222
223         DCB_CMD_GPERM_HWADDR,
224
225         DCB_CMD_GCAP,
226
227         DCB_CMD_GNUMTCS,
228         DCB_CMD_SNUMTCS,
229
230         DCB_CMD_PFC_GSTATE,
231         DCB_CMD_PFC_SSTATE,
232
233         DCB_CMD_BCN_GCFG,
234         DCB_CMD_BCN_SCFG,
235
236         DCB_CMD_GAPP,
237         DCB_CMD_SAPP,
238
239         DCB_CMD_IEEE_SET,
240         DCB_CMD_IEEE_GET,
241
242         DCB_CMD_GDCBX,
243         DCB_CMD_SDCBX,
244
245         DCB_CMD_GFEATCFG,
246         DCB_CMD_SFEATCFG,
247
248         DCB_CMD_CEE_GET,
249
250         __DCB_CMD_ENUM_MAX,
251         DCB_CMD_MAX = __DCB_CMD_ENUM_MAX - 1,
252 };
253
254 /**
255  * enum dcbnl_attrs - DCB top-level netlink attributes
256  *
257  * @DCB_ATTR_UNDEFINED: unspecified attribute to catch errors
258  * @DCB_ATTR_IFNAME: interface name of the underlying device (NLA_STRING)
259  * @DCB_ATTR_STATE: enable state of DCB in the device (NLA_U8)
260  * @DCB_ATTR_PFC_STATE: enable state of PFC in the device (NLA_U8)
261  * @DCB_ATTR_PFC_CFG: priority flow control configuration (NLA_NESTED)
262  * @DCB_ATTR_NUM_TC: number of traffic classes supported in the device (NLA_U8)
263  * @DCB_ATTR_PG_CFG: priority group configuration (NLA_NESTED)
264  * @DCB_ATTR_SET_ALL: bool to commit changes to hardware or not (NLA_U8)
265  * @DCB_ATTR_PERM_HWADDR: MAC address of the physical device (NLA_NESTED)
266  * @DCB_ATTR_CAP: DCB capabilities of the device (NLA_NESTED)
267  * @DCB_ATTR_NUMTCS: number of traffic classes supported (NLA_NESTED)
268  * @DCB_ATTR_BCN: backward congestion notification configuration (NLA_NESTED)
269  * @DCB_ATTR_IEEE: IEEE 802.1Qaz supported attributes (NLA_NESTED)
270  * @DCB_ATTR_DCBX: DCBX engine configuration in the device (NLA_U8)
271  * @DCB_ATTR_FEATCFG: DCBX features flags (NLA_NESTED)
272  * @DCB_ATTR_CEE: CEE std supported attributes (NLA_NESTED)
273  */
274 enum dcbnl_attrs {
275         DCB_ATTR_UNDEFINED,
276
277         DCB_ATTR_IFNAME,
278         DCB_ATTR_STATE,
279         DCB_ATTR_PFC_STATE,
280         DCB_ATTR_PFC_CFG,
281         DCB_ATTR_NUM_TC,
282         DCB_ATTR_PG_CFG,
283         DCB_ATTR_SET_ALL,
284         DCB_ATTR_PERM_HWADDR,
285         DCB_ATTR_CAP,
286         DCB_ATTR_NUMTCS,
287         DCB_ATTR_BCN,
288         DCB_ATTR_APP,
289
290         /* IEEE std attributes */
291         DCB_ATTR_IEEE,
292
293         DCB_ATTR_DCBX,
294         DCB_ATTR_FEATCFG,
295
296         /* CEE nested attributes */
297         DCB_ATTR_CEE,
298
299         __DCB_ATTR_ENUM_MAX,
300         DCB_ATTR_MAX = __DCB_ATTR_ENUM_MAX - 1,
301 };
302
303 /**
304  * enum ieee_attrs - IEEE 802.1Qaz get/set attributes
305  *
306  * @DCB_ATTR_IEEE_UNSPEC: unspecified
307  * @DCB_ATTR_IEEE_ETS: negotiated ETS configuration
308  * @DCB_ATTR_IEEE_PFC: negotiated PFC configuration
309  * @DCB_ATTR_IEEE_APP_TABLE: negotiated APP configuration
310  * @DCB_ATTR_IEEE_PEER_ETS: peer ETS configuration - get only
311  * @DCB_ATTR_IEEE_PEER_PFC: peer PFC configuration - get only
312  * @DCB_ATTR_IEEE_PEER_APP: peer APP tlv - get only
313  */
314 enum ieee_attrs {
315         DCB_ATTR_IEEE_UNSPEC,
316         DCB_ATTR_IEEE_ETS,
317         DCB_ATTR_IEEE_PFC,
318         DCB_ATTR_IEEE_APP_TABLE,
319         DCB_ATTR_IEEE_PEER_ETS,
320         DCB_ATTR_IEEE_PEER_PFC,
321         DCB_ATTR_IEEE_PEER_APP,
322         __DCB_ATTR_IEEE_MAX
323 };
324 #define DCB_ATTR_IEEE_MAX (__DCB_ATTR_IEEE_MAX - 1)
325
326 enum ieee_attrs_app {
327         DCB_ATTR_IEEE_APP_UNSPEC,
328         DCB_ATTR_IEEE_APP,
329         __DCB_ATTR_IEEE_APP_MAX
330 };
331 #define DCB_ATTR_IEEE_APP_MAX (__DCB_ATTR_IEEE_APP_MAX - 1)
332
333 /**
334  * enum cee_attrs - CEE DCBX get attributes
335  *
336  * @DCB_ATTR_CEE_UNSPEC: unspecified
337  * @DCB_ATTR_CEE_PEER_PG: peer PG configuration - get only
338  * @DCB_ATTR_CEE_PEER_PFC: peer PFC configuration - get only
339  * @DCB_ATTR_CEE_PEER_APP: peer APP tlv - get only
340  */
341 enum cee_attrs {
342         DCB_ATTR_CEE_UNSPEC,
343         DCB_ATTR_CEE_PEER_PG,
344         DCB_ATTR_CEE_PEER_PFC,
345         DCB_ATTR_CEE_PEER_APP_TABLE,
346         __DCB_ATTR_CEE_MAX
347 };
348 #define DCB_ATTR_CEE_MAX (__DCB_ATTR_CEE_MAX - 1)
349
350 enum peer_app_attr {
351         DCB_ATTR_CEE_PEER_APP_UNSPEC,
352         DCB_ATTR_CEE_PEER_APP_INFO,
353         DCB_ATTR_CEE_PEER_APP,
354         __DCB_ATTR_CEE_PEER_APP_MAX
355 };
356 #define DCB_ATTR_CEE_PEER_APP_MAX (__DCB_ATTR_CEE_PEER_APP_MAX - 1)
357
358 /**
359  * enum dcbnl_pfc_attrs - DCB Priority Flow Control user priority nested attrs
360  *
361  * @DCB_PFC_UP_ATTR_UNDEFINED: unspecified attribute to catch errors
362  * @DCB_PFC_UP_ATTR_0: Priority Flow Control value for User Priority 0 (NLA_U8)
363  * @DCB_PFC_UP_ATTR_1: Priority Flow Control value for User Priority 1 (NLA_U8)
364  * @DCB_PFC_UP_ATTR_2: Priority Flow Control value for User Priority 2 (NLA_U8)
365  * @DCB_PFC_UP_ATTR_3: Priority Flow Control value for User Priority 3 (NLA_U8)
366  * @DCB_PFC_UP_ATTR_4: Priority Flow Control value for User Priority 4 (NLA_U8)
367  * @DCB_PFC_UP_ATTR_5: Priority Flow Control value for User Priority 5 (NLA_U8)
368  * @DCB_PFC_UP_ATTR_6: Priority Flow Control value for User Priority 6 (NLA_U8)
369  * @DCB_PFC_UP_ATTR_7: Priority Flow Control value for User Priority 7 (NLA_U8)
370  * @DCB_PFC_UP_ATTR_MAX: highest attribute number currently defined
371  * @DCB_PFC_UP_ATTR_ALL: apply to all priority flow control attrs (NLA_FLAG)
372  *
373  */
374 enum dcbnl_pfc_up_attrs {
375         DCB_PFC_UP_ATTR_UNDEFINED,
376
377         DCB_PFC_UP_ATTR_0,
378         DCB_PFC_UP_ATTR_1,
379         DCB_PFC_UP_ATTR_2,
380         DCB_PFC_UP_ATTR_3,
381         DCB_PFC_UP_ATTR_4,
382         DCB_PFC_UP_ATTR_5,
383         DCB_PFC_UP_ATTR_6,
384         DCB_PFC_UP_ATTR_7,
385         DCB_PFC_UP_ATTR_ALL,
386
387         __DCB_PFC_UP_ATTR_ENUM_MAX,
388         DCB_PFC_UP_ATTR_MAX = __DCB_PFC_UP_ATTR_ENUM_MAX - 1,
389 };
390
391 /**
392  * enum dcbnl_pg_attrs - DCB Priority Group attributes
393  *
394  * @DCB_PG_ATTR_UNDEFINED: unspecified attribute to catch errors
395  * @DCB_PG_ATTR_TC_0: Priority Group Traffic Class 0 configuration (NLA_NESTED)
396  * @DCB_PG_ATTR_TC_1: Priority Group Traffic Class 1 configuration (NLA_NESTED)
397  * @DCB_PG_ATTR_TC_2: Priority Group Traffic Class 2 configuration (NLA_NESTED)
398  * @DCB_PG_ATTR_TC_3: Priority Group Traffic Class 3 configuration (NLA_NESTED)
399  * @DCB_PG_ATTR_TC_4: Priority Group Traffic Class 4 configuration (NLA_NESTED)
400  * @DCB_PG_ATTR_TC_5: Priority Group Traffic Class 5 configuration (NLA_NESTED)
401  * @DCB_PG_ATTR_TC_6: Priority Group Traffic Class 6 configuration (NLA_NESTED)
402  * @DCB_PG_ATTR_TC_7: Priority Group Traffic Class 7 configuration (NLA_NESTED)
403  * @DCB_PG_ATTR_TC_MAX: highest attribute number currently defined
404  * @DCB_PG_ATTR_TC_ALL: apply to all traffic classes (NLA_NESTED)
405  * @DCB_PG_ATTR_BW_ID_0: Percent of link bandwidth for Priority Group 0 (NLA_U8)
406  * @DCB_PG_ATTR_BW_ID_1: Percent of link bandwidth for Priority Group 1 (NLA_U8)
407  * @DCB_PG_ATTR_BW_ID_2: Percent of link bandwidth for Priority Group 2 (NLA_U8)
408  * @DCB_PG_ATTR_BW_ID_3: Percent of link bandwidth for Priority Group 3 (NLA_U8)
409  * @DCB_PG_ATTR_BW_ID_4: Percent of link bandwidth for Priority Group 4 (NLA_U8)
410  * @DCB_PG_ATTR_BW_ID_5: Percent of link bandwidth for Priority Group 5 (NLA_U8)
411  * @DCB_PG_ATTR_BW_ID_6: Percent of link bandwidth for Priority Group 6 (NLA_U8)
412  * @DCB_PG_ATTR_BW_ID_7: Percent of link bandwidth for Priority Group 7 (NLA_U8)
413  * @DCB_PG_ATTR_BW_ID_MAX: highest attribute number currently defined
414  * @DCB_PG_ATTR_BW_ID_ALL: apply to all priority groups (NLA_FLAG)
415  *
416  */
417 enum dcbnl_pg_attrs {
418         DCB_PG_ATTR_UNDEFINED,
419
420         DCB_PG_ATTR_TC_0,
421         DCB_PG_ATTR_TC_1,
422         DCB_PG_ATTR_TC_2,
423         DCB_PG_ATTR_TC_3,
424         DCB_PG_ATTR_TC_4,
425         DCB_PG_ATTR_TC_5,
426         DCB_PG_ATTR_TC_6,
427         DCB_PG_ATTR_TC_7,
428         DCB_PG_ATTR_TC_MAX,
429         DCB_PG_ATTR_TC_ALL,
430
431         DCB_PG_ATTR_BW_ID_0,
432         DCB_PG_ATTR_BW_ID_1,
433         DCB_PG_ATTR_BW_ID_2,
434         DCB_PG_ATTR_BW_ID_3,
435         DCB_PG_ATTR_BW_ID_4,
436         DCB_PG_ATTR_BW_ID_5,
437         DCB_PG_ATTR_BW_ID_6,
438         DCB_PG_ATTR_BW_ID_7,
439         DCB_PG_ATTR_BW_ID_MAX,
440         DCB_PG_ATTR_BW_ID_ALL,
441
442         __DCB_PG_ATTR_ENUM_MAX,
443         DCB_PG_ATTR_MAX = __DCB_PG_ATTR_ENUM_MAX - 1,
444 };
445
446 /**
447  * enum dcbnl_tc_attrs - DCB Traffic Class attributes
448  *
449  * @DCB_TC_ATTR_PARAM_UNDEFINED: unspecified attribute to catch errors
450  * @DCB_TC_ATTR_PARAM_PGID: (NLA_U8) Priority group the traffic class belongs to
451  *                          Valid values are:  0-7
452  * @DCB_TC_ATTR_PARAM_UP_MAPPING: (NLA_U8) Traffic class to user priority map
453  *                                Some devices may not support changing the
454  *                                user priority map of a TC.
455  * @DCB_TC_ATTR_PARAM_STRICT_PRIO: (NLA_U8) Strict priority setting
456  *                                 0 - none
457  *                                 1 - group strict
458  *                                 2 - link strict
459  * @DCB_TC_ATTR_PARAM_BW_PCT: optional - (NLA_U8) If supported by the device and
460  *                            not configured to use link strict priority,
461  *                            this is the percentage of bandwidth of the
462  *                            priority group this traffic class belongs to
463  * @DCB_TC_ATTR_PARAM_ALL: (NLA_FLAG) all traffic class parameters
464  *
465  */
466 enum dcbnl_tc_attrs {
467         DCB_TC_ATTR_PARAM_UNDEFINED,
468
469         DCB_TC_ATTR_PARAM_PGID,
470         DCB_TC_ATTR_PARAM_UP_MAPPING,
471         DCB_TC_ATTR_PARAM_STRICT_PRIO,
472         DCB_TC_ATTR_PARAM_BW_PCT,
473         DCB_TC_ATTR_PARAM_ALL,
474
475         __DCB_TC_ATTR_PARAM_ENUM_MAX,
476         DCB_TC_ATTR_PARAM_MAX = __DCB_TC_ATTR_PARAM_ENUM_MAX - 1,
477 };
478
479 /**
480  * enum dcbnl_cap_attrs - DCB Capability attributes
481  *
482  * @DCB_CAP_ATTR_UNDEFINED: unspecified attribute to catch errors
483  * @DCB_CAP_ATTR_ALL: (NLA_FLAG) all capability parameters
484  * @DCB_CAP_ATTR_PG: (NLA_U8) device supports Priority Groups
485  * @DCB_CAP_ATTR_PFC: (NLA_U8) device supports Priority Flow Control
486  * @DCB_CAP_ATTR_UP2TC: (NLA_U8) device supports user priority to
487  *                               traffic class mapping
488  * @DCB_CAP_ATTR_PG_TCS: (NLA_U8) bitmap where each bit represents a
489  *                                number of traffic classes the device
490  *                                can be configured to use for Priority Groups
491  * @DCB_CAP_ATTR_PFC_TCS: (NLA_U8) bitmap where each bit represents a
492  *                                 number of traffic classes the device can be
493  *                                 configured to use for Priority Flow Control
494  * @DCB_CAP_ATTR_GSP: (NLA_U8) device supports group strict priority
495  * @DCB_CAP_ATTR_BCN: (NLA_U8) device supports Backwards Congestion
496  *                             Notification
497  * @DCB_CAP_ATTR_DCBX: (NLA_U8) device supports DCBX engine
498  *
499  */
500 enum dcbnl_cap_attrs {
501         DCB_CAP_ATTR_UNDEFINED,
502         DCB_CAP_ATTR_ALL,
503         DCB_CAP_ATTR_PG,
504         DCB_CAP_ATTR_PFC,
505         DCB_CAP_ATTR_UP2TC,
506         DCB_CAP_ATTR_PG_TCS,
507         DCB_CAP_ATTR_PFC_TCS,
508         DCB_CAP_ATTR_GSP,
509         DCB_CAP_ATTR_BCN,
510         DCB_CAP_ATTR_DCBX,
511
512         __DCB_CAP_ATTR_ENUM_MAX,
513         DCB_CAP_ATTR_MAX = __DCB_CAP_ATTR_ENUM_MAX - 1,
514 };
515
516 /**
517  * DCBX capability flags
518  *
519  * @DCB_CAP_DCBX_HOST: DCBX negotiation is performed by the host LLDP agent.
520  *                     'set' routines are used to configure the device with
521  *                     the negotiated parameters
522  *
523  * @DCB_CAP_DCBX_LLD_MANAGED: DCBX negotiation is not performed in the host but
524  *                            by another entity
525  *                            'get' routines are used to retrieve the
526  *                            negotiated parameters
527  *                            'set' routines can be used to set the initial
528  *                            negotiation configuration
529  *
530  * @DCB_CAP_DCBX_VER_CEE: for a non-host DCBX engine, indicates the engine
531  *                        supports the CEE protocol flavor
532  *
533  * @DCB_CAP_DCBX_VER_IEEE: for a non-host DCBX engine, indicates the engine
534  *                         supports the IEEE protocol flavor
535  *
536  * @DCB_CAP_DCBX_STATIC: for a non-host DCBX engine, indicates the engine
537  *                       supports static configuration (i.e no actual
538  *                       negotiation is performed negotiated parameters equal
539  *                       the initial configuration)
540  *
541  */
542 #define DCB_CAP_DCBX_HOST               0x01
543 #define DCB_CAP_DCBX_LLD_MANAGED        0x02
544 #define DCB_CAP_DCBX_VER_CEE            0x04
545 #define DCB_CAP_DCBX_VER_IEEE           0x08
546 #define DCB_CAP_DCBX_STATIC             0x10
547
548 /**
549  * enum dcbnl_numtcs_attrs - number of traffic classes
550  *
551  * @DCB_NUMTCS_ATTR_UNDEFINED: unspecified attribute to catch errors
552  * @DCB_NUMTCS_ATTR_ALL: (NLA_FLAG) all traffic class attributes
553  * @DCB_NUMTCS_ATTR_PG: (NLA_U8) number of traffic classes used for
554  *                               priority groups
555  * @DCB_NUMTCS_ATTR_PFC: (NLA_U8) number of traffic classes which can
556  *                                support priority flow control
557  */
558 enum dcbnl_numtcs_attrs {
559         DCB_NUMTCS_ATTR_UNDEFINED,
560         DCB_NUMTCS_ATTR_ALL,
561         DCB_NUMTCS_ATTR_PG,
562         DCB_NUMTCS_ATTR_PFC,
563
564         __DCB_NUMTCS_ATTR_ENUM_MAX,
565         DCB_NUMTCS_ATTR_MAX = __DCB_NUMTCS_ATTR_ENUM_MAX - 1,
566 };
567
568 enum dcbnl_bcn_attrs{
569         DCB_BCN_ATTR_UNDEFINED = 0,
570
571         DCB_BCN_ATTR_RP_0,
572         DCB_BCN_ATTR_RP_1,
573         DCB_BCN_ATTR_RP_2,
574         DCB_BCN_ATTR_RP_3,
575         DCB_BCN_ATTR_RP_4,
576         DCB_BCN_ATTR_RP_5,
577         DCB_BCN_ATTR_RP_6,
578         DCB_BCN_ATTR_RP_7,
579         DCB_BCN_ATTR_RP_ALL,
580
581         DCB_BCN_ATTR_BCNA_0,
582         DCB_BCN_ATTR_BCNA_1,
583         DCB_BCN_ATTR_ALPHA,
584         DCB_BCN_ATTR_BETA,
585         DCB_BCN_ATTR_GD,
586         DCB_BCN_ATTR_GI,
587         DCB_BCN_ATTR_TMAX,
588         DCB_BCN_ATTR_TD,
589         DCB_BCN_ATTR_RMIN,
590         DCB_BCN_ATTR_W,
591         DCB_BCN_ATTR_RD,
592         DCB_BCN_ATTR_RU,
593         DCB_BCN_ATTR_WRTT,
594         DCB_BCN_ATTR_RI,
595         DCB_BCN_ATTR_C,
596         DCB_BCN_ATTR_ALL,
597
598         __DCB_BCN_ATTR_ENUM_MAX,
599         DCB_BCN_ATTR_MAX = __DCB_BCN_ATTR_ENUM_MAX - 1,
600 };
601
602 /**
603  * enum dcb_general_attr_values - general DCB attribute values
604  *
605  * @DCB_ATTR_UNDEFINED: value used to indicate an attribute is not supported
606  *
607  */
608 enum dcb_general_attr_values {
609         DCB_ATTR_VALUE_UNDEFINED = 0xff
610 };
611
612 #define DCB_APP_IDTYPE_ETHTYPE  0x00
613 #define DCB_APP_IDTYPE_PORTNUM  0x01
614 enum dcbnl_app_attrs {
615         DCB_APP_ATTR_UNDEFINED,
616
617         DCB_APP_ATTR_IDTYPE,
618         DCB_APP_ATTR_ID,
619         DCB_APP_ATTR_PRIORITY,
620
621         __DCB_APP_ATTR_ENUM_MAX,
622         DCB_APP_ATTR_MAX = __DCB_APP_ATTR_ENUM_MAX - 1,
623 };
624
625 /**
626  * enum dcbnl_featcfg_attrs - features conifiguration flags
627  *
628  * @DCB_FEATCFG_ATTR_UNDEFINED: unspecified attribute to catch errors
629  * @DCB_FEATCFG_ATTR_ALL: (NLA_FLAG) all features configuration attributes
630  * @DCB_FEATCFG_ATTR_PG: (NLA_U8) configuration flags for priority groups
631  * @DCB_FEATCFG_ATTR_PFC: (NLA_U8) configuration flags for priority
632  *                                 flow control
633  * @DCB_FEATCFG_ATTR_APP: (NLA_U8) configuration flags for application TLV
634  *
635  */
636 #define DCB_FEATCFG_ERROR       0x01    /* error in feature resolution */
637 #define DCB_FEATCFG_ENABLE      0x02    /* enable feature */
638 #define DCB_FEATCFG_WILLING     0x04    /* feature is willing */
639 #define DCB_FEATCFG_ADVERTISE   0x08    /* advertise feature */
640 enum dcbnl_featcfg_attrs {
641         DCB_FEATCFG_ATTR_UNDEFINED,
642         DCB_FEATCFG_ATTR_ALL,
643         DCB_FEATCFG_ATTR_PG,
644         DCB_FEATCFG_ATTR_PFC,
645         DCB_FEATCFG_ATTR_APP,
646
647         __DCB_FEATCFG_ATTR_ENUM_MAX,
648         DCB_FEATCFG_ATTR_MAX = __DCB_FEATCFG_ATTR_ENUM_MAX - 1,
649 };
650
651 #endif /* __LINUX_DCBNL_H__ */