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1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2/*
3 * Copyright (c) 2008-2011, Intel Corporation.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms and conditions of the GNU General Public License,
7 * version 2, as published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
16 * Place - Suite 330, Boston, MA 02111-1307 USA.
17 *
18 * Author: Lucy Liu <lucy.liu@intel.com>
19 */
20
21#ifndef __LINUX_DCBNL_H__
22#define __LINUX_DCBNL_H__
23
24#include <linux/types.h>
25
26/* IEEE 802.1Qaz std supported values */
27#define IEEE_8021QAZ_MAX_TCS 8
28
29#define IEEE_8021QAZ_TSA_STRICT 0
30#define IEEE_8021QAZ_TSA_CB_SHAPER 1
31#define IEEE_8021QAZ_TSA_ETS 2
32#define IEEE_8021QAZ_TSA_VENDOR 255
33
34/* This structure contains the IEEE 802.1Qaz ETS managed object
35 *
36 * @willing: willing bit in ETS configuration TLV
37 * @ets_cap: indicates supported capacity of ets feature
38 * @cbs: credit based shaper ets algorithm supported
39 * @tc_tx_bw: tc tx bandwidth indexed by traffic class
40 * @tc_rx_bw: tc rx bandwidth indexed by traffic class
41 * @tc_tsa: TSA Assignment table, indexed by traffic class
42 * @prio_tc: priority assignment table mapping 8021Qp to traffic class
43 * @tc_reco_bw: recommended tc bandwidth indexed by traffic class for TLV
44 * @tc_reco_tsa: recommended tc bandwidth indexed by traffic class for TLV
45 * @reco_prio_tc: recommended tc tx bandwidth indexed by traffic class for TLV
46 *
47 * Recommended values are used to set fields in the ETS recommendation TLV
48 * with hardware offloaded LLDP.
49 *
50 * ----
51 * TSA Assignment 8 bit identifiers
52 * 0 strict priority
53 * 1 credit-based shaper
54 * 2 enhanced transmission selection
55 * 3-254 reserved
56 * 255 vendor specific
57 */
58struct ieee_ets {
59 __u8 willing;
60 __u8 ets_cap;
61 __u8 cbs;
62 __u8 tc_tx_bw[IEEE_8021QAZ_MAX_TCS];
63 __u8 tc_rx_bw[IEEE_8021QAZ_MAX_TCS];
64 __u8 tc_tsa[IEEE_8021QAZ_MAX_TCS];
65 __u8 prio_tc[IEEE_8021QAZ_MAX_TCS];
66 __u8 tc_reco_bw[IEEE_8021QAZ_MAX_TCS];
67 __u8 tc_reco_tsa[IEEE_8021QAZ_MAX_TCS];
68 __u8 reco_prio_tc[IEEE_8021QAZ_MAX_TCS];
69};
70
71/* This structure contains rate limit extension to the IEEE 802.1Qaz ETS
72 * managed object.
73 * Values are 64 bits long and specified in Kbps to enable usage over both
74 * slow and very fast networks.
75 *
76 * @tc_maxrate: maximal tc tx bandwidth indexed by traffic class
77 */
78struct ieee_maxrate {
79 __u64 tc_maxrate[IEEE_8021QAZ_MAX_TCS];
80};
81
82enum dcbnl_cndd_states {
83 DCB_CNDD_RESET = 0,
84 DCB_CNDD_EDGE,
85 DCB_CNDD_INTERIOR,
86 DCB_CNDD_INTERIOR_READY,
87};
88
89/* This structure contains the IEEE 802.1Qau QCN managed object.
90 *
91 *@rpg_enable: enable QCN RP
92 *@rppp_max_rps: maximum number of RPs allowed for this CNPV on this port
93 *@rpg_time_reset: time between rate increases if no CNMs received.
94 * given in u-seconds
95 *@rpg_byte_reset: transmitted data between rate increases if no CNMs received.
96 * given in Bytes
97 *@rpg_threshold: The number of times rpByteStage or rpTimeStage can count
98 * before RP rate control state machine advances states
99 *@rpg_max_rate: the maxinun rate, in Mbits per second,
100 * at which an RP can transmit
101 *@rpg_ai_rate: The rate, in Mbits per second,
102 * used to increase rpTargetRate in the RPR_ACTIVE_INCREASE
103 *@rpg_hai_rate: The rate, in Mbits per second,
104 * used to increase rpTargetRate in the RPR_HYPER_INCREASE state
105 *@rpg_gd: Upon CNM receive, flow rate is limited to (Fb/Gd)*CurrentRate.
106 * rpgGd is given as log2(Gd), where Gd may only be powers of 2
107 *@rpg_min_dec_fac: The minimum factor by which the current transmit rate
108 * can be changed by reception of a CNM.
109 * value is given as percentage (1-100)
110 *@rpg_min_rate: The minimum value, in bits per second, for rate to limit
111 *@cndd_state_machine: The state of the congestion notification domain
112 * defense state machine, as defined by IEEE 802.3Qau
113 * section 32.1.1. In the interior ready state,
114 * the QCN capable hardware may add CN-TAG TLV to the
115 * outgoing traffic, to specifically identify outgoing
116 * flows.
117 */
118
119struct ieee_qcn {
120 __u8 rpg_enable[IEEE_8021QAZ_MAX_TCS];
121 __u32 rppp_max_rps[IEEE_8021QAZ_MAX_TCS];
122 __u32 rpg_time_reset[IEEE_8021QAZ_MAX_TCS];
123 __u32 rpg_byte_reset[IEEE_8021QAZ_MAX_TCS];
124 __u32 rpg_threshold[IEEE_8021QAZ_MAX_TCS];
125 __u32 rpg_max_rate[IEEE_8021QAZ_MAX_TCS];
126 __u32 rpg_ai_rate[IEEE_8021QAZ_MAX_TCS];
127 __u32 rpg_hai_rate[IEEE_8021QAZ_MAX_TCS];
128 __u32 rpg_gd[IEEE_8021QAZ_MAX_TCS];
129 __u32 rpg_min_dec_fac[IEEE_8021QAZ_MAX_TCS];
130 __u32 rpg_min_rate[IEEE_8021QAZ_MAX_TCS];
131 __u32 cndd_state_machine[IEEE_8021QAZ_MAX_TCS];
132};
133
134/* This structure contains the IEEE 802.1Qau QCN statistics.
135 *
136 *@rppp_rp_centiseconds: the number of RP-centiseconds accumulated
137 * by RPs at this priority level on this Port
138 *@rppp_created_rps: number of active RPs(flows) that react to CNMs
139 */
140
141struct ieee_qcn_stats {
142 __u64 rppp_rp_centiseconds[IEEE_8021QAZ_MAX_TCS];
143 __u32 rppp_created_rps[IEEE_8021QAZ_MAX_TCS];
144};
145
146/* This structure contains the IEEE 802.1Qaz PFC managed object
147 *
148 * @pfc_cap: Indicates the number of traffic classes on the local device
149 * that may simultaneously have PFC enabled.
150 * @pfc_en: bitmap indicating pfc enabled traffic classes
151 * @mbc: enable macsec bypass capability
152 * @delay: the allowance made for a round-trip propagation delay of the
153 * link in bits.
154 * @requests: count of the sent pfc frames
155 * @indications: count of the received pfc frames
156 */
157struct ieee_pfc {
158 __u8 pfc_cap;
159 __u8 pfc_en;
160 __u8 mbc;
161 __u16 delay;
162 __u64 requests[IEEE_8021QAZ_MAX_TCS];
163 __u64 indications[IEEE_8021QAZ_MAX_TCS];
164};
165
166#define IEEE_8021Q_MAX_PRIORITIES 8
167#define DCBX_MAX_BUFFERS 8
168struct dcbnl_buffer {
169 /* priority to buffer mapping */
170 __u8 prio2buffer[IEEE_8021Q_MAX_PRIORITIES];
171 /* buffer size in Bytes */
172 __u32 buffer_size[DCBX_MAX_BUFFERS];
173 __u32 total_size;
174};
175
176/* CEE DCBX std supported values */
177#define CEE_DCBX_MAX_PGS 8
178#define CEE_DCBX_MAX_PRIO 8
179
180/**
181 * struct cee_pg - CEE Priority-Group managed object
182 *
183 * @willing: willing bit in the PG tlv
184 * @error: error bit in the PG tlv
185 * @pg_en: enable bit of the PG feature
186 * @tcs_supported: number of traffic classes supported
187 * @pg_bw: bandwidth percentage for each priority group
188 * @prio_pg: priority to PG mapping indexed by priority
189 */
190struct cee_pg {
191 __u8 willing;
192 __u8 error;
193 __u8 pg_en;
194 __u8 tcs_supported;
195 __u8 pg_bw[CEE_DCBX_MAX_PGS];
196 __u8 prio_pg[CEE_DCBX_MAX_PGS];
197};
198
199/**
200 * struct cee_pfc - CEE PFC managed object
201 *
202 * @willing: willing bit in the PFC tlv
203 * @error: error bit in the PFC tlv
204 * @pfc_en: bitmap indicating pfc enabled traffic classes
205 * @tcs_supported: number of traffic classes supported
206 */
207struct cee_pfc {
208 __u8 willing;
209 __u8 error;
210 __u8 pfc_en;
211 __u8 tcs_supported;
212};
213
214/* IEEE 802.1Qaz std supported values */
215#define IEEE_8021QAZ_APP_SEL_ETHERTYPE 1
216#define IEEE_8021QAZ_APP_SEL_STREAM 2
217#define IEEE_8021QAZ_APP_SEL_DGRAM 3
218#define IEEE_8021QAZ_APP_SEL_ANY 4
219#define IEEE_8021QAZ_APP_SEL_DSCP 5
220
221/* This structure contains the IEEE 802.1Qaz APP managed object. This
222 * object is also used for the CEE std as well.
223 *
224 * @selector: protocol identifier type
225 * @protocol: protocol of type indicated
226 * @priority: 3-bit unsigned integer indicating priority for IEEE
227 * 8-bit 802.1p user priority bitmap for CEE
228 *
229 * ----
230 * Selector field values for IEEE 802.1Qaz
231 * 0 Reserved
232 * 1 Ethertype
233 * 2 Well known port number over TCP or SCTP
234 * 3 Well known port number over UDP or DCCP
235 * 4 Well known port number over TCP, SCTP, UDP, or DCCP
236 * 5-7 Reserved
237 *
238 * Selector field values for CEE
239 * 0 Ethertype
240 * 1 Well known port number over TCP or UDP
241 * 2-3 Reserved
242 */
243struct dcb_app {
244 __u8 selector;
245 __u8 priority;
246 __u16 protocol;
247};
248
249/**
250 * struct dcb_peer_app_info - APP feature information sent by the peer
251 *
252 * @willing: willing bit in the peer APP tlv
253 * @error: error bit in the peer APP tlv
254 *
255 * In addition to this information the full peer APP tlv also contains
256 * a table of 'app_count' APP objects defined above.
257 */
258struct dcb_peer_app_info {
259 __u8 willing;
260 __u8 error;
261};
262
263struct dcbmsg {
264 __u8 dcb_family;
265 __u8 cmd;
266 __u16 dcb_pad;
267};
268
269/**
270 * enum dcbnl_commands - supported DCB commands
271 *
272 * @DCB_CMD_UNDEFINED: unspecified command to catch errors
273 * @DCB_CMD_GSTATE: request the state of DCB in the device
274 * @DCB_CMD_SSTATE: set the state of DCB in the device
275 * @DCB_CMD_PGTX_GCFG: request the priority group configuration for Tx
276 * @DCB_CMD_PGTX_SCFG: set the priority group configuration for Tx
277 * @DCB_CMD_PGRX_GCFG: request the priority group configuration for Rx
278 * @DCB_CMD_PGRX_SCFG: set the priority group configuration for Rx
279 * @DCB_CMD_PFC_GCFG: request the priority flow control configuration
280 * @DCB_CMD_PFC_SCFG: set the priority flow control configuration
281 * @DCB_CMD_SET_ALL: apply all changes to the underlying device
282 * @DCB_CMD_GPERM_HWADDR: get the permanent MAC address of the underlying
283 * device. Only useful when using bonding.
284 * @DCB_CMD_GCAP: request the DCB capabilities of the device
285 * @DCB_CMD_GNUMTCS: get the number of traffic classes currently supported
286 * @DCB_CMD_SNUMTCS: set the number of traffic classes
287 * @DCB_CMD_GBCN: set backward congestion notification configuration
288 * @DCB_CMD_SBCN: get backward congestion notification configration.
289 * @DCB_CMD_GAPP: get application protocol configuration
290 * @DCB_CMD_SAPP: set application protocol configuration
291 * @DCB_CMD_IEEE_SET: set IEEE 802.1Qaz configuration
292 * @DCB_CMD_IEEE_GET: get IEEE 802.1Qaz configuration
293 * @DCB_CMD_GDCBX: get DCBX engine configuration
294 * @DCB_CMD_SDCBX: set DCBX engine configuration
295 * @DCB_CMD_GFEATCFG: get DCBX features flags
296 * @DCB_CMD_SFEATCFG: set DCBX features negotiation flags
297 * @DCB_CMD_CEE_GET: get CEE aggregated configuration
298 * @DCB_CMD_IEEE_DEL: delete IEEE 802.1Qaz configuration
299 */
300enum dcbnl_commands {
301 DCB_CMD_UNDEFINED,
302
303 DCB_CMD_GSTATE,
304 DCB_CMD_SSTATE,
305
306 DCB_CMD_PGTX_GCFG,
307 DCB_CMD_PGTX_SCFG,
308 DCB_CMD_PGRX_GCFG,
309 DCB_CMD_PGRX_SCFG,
310
311 DCB_CMD_PFC_GCFG,
312 DCB_CMD_PFC_SCFG,
313
314 DCB_CMD_SET_ALL,
315
316 DCB_CMD_GPERM_HWADDR,
317
318 DCB_CMD_GCAP,
319
320 DCB_CMD_GNUMTCS,
321 DCB_CMD_SNUMTCS,
322
323 DCB_CMD_PFC_GSTATE,
324 DCB_CMD_PFC_SSTATE,
325
326 DCB_CMD_BCN_GCFG,
327 DCB_CMD_BCN_SCFG,
328
329 DCB_CMD_GAPP,
330 DCB_CMD_SAPP,
331
332 DCB_CMD_IEEE_SET,
333 DCB_CMD_IEEE_GET,
334
335 DCB_CMD_GDCBX,
336 DCB_CMD_SDCBX,
337
338 DCB_CMD_GFEATCFG,
339 DCB_CMD_SFEATCFG,
340
341 DCB_CMD_CEE_GET,
342 DCB_CMD_IEEE_DEL,
343
344 __DCB_CMD_ENUM_MAX,
345 DCB_CMD_MAX = __DCB_CMD_ENUM_MAX - 1,
346};
347
348/**
349 * enum dcbnl_attrs - DCB top-level netlink attributes
350 *
351 * @DCB_ATTR_UNDEFINED: unspecified attribute to catch errors
352 * @DCB_ATTR_IFNAME: interface name of the underlying device (NLA_STRING)
353 * @DCB_ATTR_STATE: enable state of DCB in the device (NLA_U8)
354 * @DCB_ATTR_PFC_STATE: enable state of PFC in the device (NLA_U8)
355 * @DCB_ATTR_PFC_CFG: priority flow control configuration (NLA_NESTED)
356 * @DCB_ATTR_NUM_TC: number of traffic classes supported in the device (NLA_U8)
357 * @DCB_ATTR_PG_CFG: priority group configuration (NLA_NESTED)
358 * @DCB_ATTR_SET_ALL: bool to commit changes to hardware or not (NLA_U8)
359 * @DCB_ATTR_PERM_HWADDR: MAC address of the physical device (NLA_NESTED)
360 * @DCB_ATTR_CAP: DCB capabilities of the device (NLA_NESTED)
361 * @DCB_ATTR_NUMTCS: number of traffic classes supported (NLA_NESTED)
362 * @DCB_ATTR_BCN: backward congestion notification configuration (NLA_NESTED)
363 * @DCB_ATTR_IEEE: IEEE 802.1Qaz supported attributes (NLA_NESTED)
364 * @DCB_ATTR_DCBX: DCBX engine configuration in the device (NLA_U8)
365 * @DCB_ATTR_FEATCFG: DCBX features flags (NLA_NESTED)
366 * @DCB_ATTR_CEE: CEE std supported attributes (NLA_NESTED)
367 */
368enum dcbnl_attrs {
369 DCB_ATTR_UNDEFINED,
370
371 DCB_ATTR_IFNAME,
372 DCB_ATTR_STATE,
373 DCB_ATTR_PFC_STATE,
374 DCB_ATTR_PFC_CFG,
375 DCB_ATTR_NUM_TC,
376 DCB_ATTR_PG_CFG,
377 DCB_ATTR_SET_ALL,
378 DCB_ATTR_PERM_HWADDR,
379 DCB_ATTR_CAP,
380 DCB_ATTR_NUMTCS,
381 DCB_ATTR_BCN,
382 DCB_ATTR_APP,
383
384 /* IEEE std attributes */
385 DCB_ATTR_IEEE,
386
387 DCB_ATTR_DCBX,
388 DCB_ATTR_FEATCFG,
389
390 /* CEE nested attributes */
391 DCB_ATTR_CEE,
392
393 __DCB_ATTR_ENUM_MAX,
394 DCB_ATTR_MAX = __DCB_ATTR_ENUM_MAX - 1,
395};
396
397/**
398 * enum ieee_attrs - IEEE 802.1Qaz get/set attributes
399 *
400 * @DCB_ATTR_IEEE_UNSPEC: unspecified
401 * @DCB_ATTR_IEEE_ETS: negotiated ETS configuration
402 * @DCB_ATTR_IEEE_PFC: negotiated PFC configuration
403 * @DCB_ATTR_IEEE_APP_TABLE: negotiated APP configuration
404 * @DCB_ATTR_IEEE_PEER_ETS: peer ETS configuration - get only
405 * @DCB_ATTR_IEEE_PEER_PFC: peer PFC configuration - get only
406 * @DCB_ATTR_IEEE_PEER_APP: peer APP tlv - get only
407 */
408enum ieee_attrs {
409 DCB_ATTR_IEEE_UNSPEC,
410 DCB_ATTR_IEEE_ETS,
411 DCB_ATTR_IEEE_PFC,
412 DCB_ATTR_IEEE_APP_TABLE,
413 DCB_ATTR_IEEE_PEER_ETS,
414 DCB_ATTR_IEEE_PEER_PFC,
415 DCB_ATTR_IEEE_PEER_APP,
416 DCB_ATTR_IEEE_MAXRATE,
417 DCB_ATTR_IEEE_QCN,
418 DCB_ATTR_IEEE_QCN_STATS,
419 DCB_ATTR_DCB_BUFFER,
420 __DCB_ATTR_IEEE_MAX
421};
422#define DCB_ATTR_IEEE_MAX (__DCB_ATTR_IEEE_MAX - 1)
423
424enum ieee_attrs_app {
425 DCB_ATTR_IEEE_APP_UNSPEC,
426 DCB_ATTR_IEEE_APP,
427 __DCB_ATTR_IEEE_APP_MAX
428};
429#define DCB_ATTR_IEEE_APP_MAX (__DCB_ATTR_IEEE_APP_MAX - 1)
430
431/**
432 * enum cee_attrs - CEE DCBX get attributes.
433 *
434 * @DCB_ATTR_CEE_UNSPEC: unspecified
435 * @DCB_ATTR_CEE_PEER_PG: peer PG configuration - get only
436 * @DCB_ATTR_CEE_PEER_PFC: peer PFC configuration - get only
437 * @DCB_ATTR_CEE_PEER_APP_TABLE: peer APP tlv - get only
438 * @DCB_ATTR_CEE_TX_PG: TX PG configuration (DCB_CMD_PGTX_GCFG)
439 * @DCB_ATTR_CEE_RX_PG: RX PG configuration (DCB_CMD_PGRX_GCFG)
440 * @DCB_ATTR_CEE_PFC: PFC configuration (DCB_CMD_PFC_GCFG)
441 * @DCB_ATTR_CEE_APP_TABLE: APP configuration (multi DCB_CMD_GAPP)
442 * @DCB_ATTR_CEE_FEAT: DCBX features flags (DCB_CMD_GFEATCFG)
443 *
444 * An aggregated collection of the cee std negotiated parameters.
445 */
446enum cee_attrs {
447 DCB_ATTR_CEE_UNSPEC,
448 DCB_ATTR_CEE_PEER_PG,
449 DCB_ATTR_CEE_PEER_PFC,
450 DCB_ATTR_CEE_PEER_APP_TABLE,
451 DCB_ATTR_CEE_TX_PG,
452 DCB_ATTR_CEE_RX_PG,
453 DCB_ATTR_CEE_PFC,
454 DCB_ATTR_CEE_APP_TABLE,
455 DCB_ATTR_CEE_FEAT,
456 __DCB_ATTR_CEE_MAX
457};
458#define DCB_ATTR_CEE_MAX (__DCB_ATTR_CEE_MAX - 1)
459
460enum peer_app_attr {
461 DCB_ATTR_CEE_PEER_APP_UNSPEC,
462 DCB_ATTR_CEE_PEER_APP_INFO,
463 DCB_ATTR_CEE_PEER_APP,
464 __DCB_ATTR_CEE_PEER_APP_MAX
465};
466#define DCB_ATTR_CEE_PEER_APP_MAX (__DCB_ATTR_CEE_PEER_APP_MAX - 1)
467
468enum cee_attrs_app {
469 DCB_ATTR_CEE_APP_UNSPEC,
470 DCB_ATTR_CEE_APP,
471 __DCB_ATTR_CEE_APP_MAX
472};
473#define DCB_ATTR_CEE_APP_MAX (__DCB_ATTR_CEE_APP_MAX - 1)
474
475/**
476 * enum dcbnl_pfc_attrs - DCB Priority Flow Control user priority nested attrs
477 *
478 * @DCB_PFC_UP_ATTR_UNDEFINED: unspecified attribute to catch errors
479 * @DCB_PFC_UP_ATTR_0: Priority Flow Control value for User Priority 0 (NLA_U8)
480 * @DCB_PFC_UP_ATTR_1: Priority Flow Control value for User Priority 1 (NLA_U8)
481 * @DCB_PFC_UP_ATTR_2: Priority Flow Control value for User Priority 2 (NLA_U8)
482 * @DCB_PFC_UP_ATTR_3: Priority Flow Control value for User Priority 3 (NLA_U8)
483 * @DCB_PFC_UP_ATTR_4: Priority Flow Control value for User Priority 4 (NLA_U8)
484 * @DCB_PFC_UP_ATTR_5: Priority Flow Control value for User Priority 5 (NLA_U8)
485 * @DCB_PFC_UP_ATTR_6: Priority Flow Control value for User Priority 6 (NLA_U8)
486 * @DCB_PFC_UP_ATTR_7: Priority Flow Control value for User Priority 7 (NLA_U8)
487 * @DCB_PFC_UP_ATTR_MAX: highest attribute number currently defined
488 * @DCB_PFC_UP_ATTR_ALL: apply to all priority flow control attrs (NLA_FLAG)
489 *
490 */
491enum dcbnl_pfc_up_attrs {
492 DCB_PFC_UP_ATTR_UNDEFINED,
493
494 DCB_PFC_UP_ATTR_0,
495 DCB_PFC_UP_ATTR_1,
496 DCB_PFC_UP_ATTR_2,
497 DCB_PFC_UP_ATTR_3,
498 DCB_PFC_UP_ATTR_4,
499 DCB_PFC_UP_ATTR_5,
500 DCB_PFC_UP_ATTR_6,
501 DCB_PFC_UP_ATTR_7,
502 DCB_PFC_UP_ATTR_ALL,
503
504 __DCB_PFC_UP_ATTR_ENUM_MAX,
505 DCB_PFC_UP_ATTR_MAX = __DCB_PFC_UP_ATTR_ENUM_MAX - 1,
506};
507
508/**
509 * enum dcbnl_pg_attrs - DCB Priority Group attributes
510 *
511 * @DCB_PG_ATTR_UNDEFINED: unspecified attribute to catch errors
512 * @DCB_PG_ATTR_TC_0: Priority Group Traffic Class 0 configuration (NLA_NESTED)
513 * @DCB_PG_ATTR_TC_1: Priority Group Traffic Class 1 configuration (NLA_NESTED)
514 * @DCB_PG_ATTR_TC_2: Priority Group Traffic Class 2 configuration (NLA_NESTED)
515 * @DCB_PG_ATTR_TC_3: Priority Group Traffic Class 3 configuration (NLA_NESTED)
516 * @DCB_PG_ATTR_TC_4: Priority Group Traffic Class 4 configuration (NLA_NESTED)
517 * @DCB_PG_ATTR_TC_5: Priority Group Traffic Class 5 configuration (NLA_NESTED)
518 * @DCB_PG_ATTR_TC_6: Priority Group Traffic Class 6 configuration (NLA_NESTED)
519 * @DCB_PG_ATTR_TC_7: Priority Group Traffic Class 7 configuration (NLA_NESTED)
520 * @DCB_PG_ATTR_TC_MAX: highest attribute number currently defined
521 * @DCB_PG_ATTR_TC_ALL: apply to all traffic classes (NLA_NESTED)
522 * @DCB_PG_ATTR_BW_ID_0: Percent of link bandwidth for Priority Group 0 (NLA_U8)
523 * @DCB_PG_ATTR_BW_ID_1: Percent of link bandwidth for Priority Group 1 (NLA_U8)
524 * @DCB_PG_ATTR_BW_ID_2: Percent of link bandwidth for Priority Group 2 (NLA_U8)
525 * @DCB_PG_ATTR_BW_ID_3: Percent of link bandwidth for Priority Group 3 (NLA_U8)
526 * @DCB_PG_ATTR_BW_ID_4: Percent of link bandwidth for Priority Group 4 (NLA_U8)
527 * @DCB_PG_ATTR_BW_ID_5: Percent of link bandwidth for Priority Group 5 (NLA_U8)
528 * @DCB_PG_ATTR_BW_ID_6: Percent of link bandwidth for Priority Group 6 (NLA_U8)
529 * @DCB_PG_ATTR_BW_ID_7: Percent of link bandwidth for Priority Group 7 (NLA_U8)
530 * @DCB_PG_ATTR_BW_ID_MAX: highest attribute number currently defined
531 * @DCB_PG_ATTR_BW_ID_ALL: apply to all priority groups (NLA_FLAG)
532 *
533 */
534enum dcbnl_pg_attrs {
535 DCB_PG_ATTR_UNDEFINED,
536
537 DCB_PG_ATTR_TC_0,
538 DCB_PG_ATTR_TC_1,
539 DCB_PG_ATTR_TC_2,
540 DCB_PG_ATTR_TC_3,
541 DCB_PG_ATTR_TC_4,
542 DCB_PG_ATTR_TC_5,
543 DCB_PG_ATTR_TC_6,
544 DCB_PG_ATTR_TC_7,
545 DCB_PG_ATTR_TC_MAX,
546 DCB_PG_ATTR_TC_ALL,
547
548 DCB_PG_ATTR_BW_ID_0,
549 DCB_PG_ATTR_BW_ID_1,
550 DCB_PG_ATTR_BW_ID_2,
551 DCB_PG_ATTR_BW_ID_3,
552 DCB_PG_ATTR_BW_ID_4,
553 DCB_PG_ATTR_BW_ID_5,
554 DCB_PG_ATTR_BW_ID_6,
555 DCB_PG_ATTR_BW_ID_7,
556 DCB_PG_ATTR_BW_ID_MAX,
557 DCB_PG_ATTR_BW_ID_ALL,
558
559 __DCB_PG_ATTR_ENUM_MAX,
560 DCB_PG_ATTR_MAX = __DCB_PG_ATTR_ENUM_MAX - 1,
561};
562
563/**
564 * enum dcbnl_tc_attrs - DCB Traffic Class attributes
565 *
566 * @DCB_TC_ATTR_PARAM_UNDEFINED: unspecified attribute to catch errors
567 * @DCB_TC_ATTR_PARAM_PGID: (NLA_U8) Priority group the traffic class belongs to
568 * Valid values are: 0-7
569 * @DCB_TC_ATTR_PARAM_UP_MAPPING: (NLA_U8) Traffic class to user priority map
570 * Some devices may not support changing the
571 * user priority map of a TC.
572 * @DCB_TC_ATTR_PARAM_STRICT_PRIO: (NLA_U8) Strict priority setting
573 * 0 - none
574 * 1 - group strict
575 * 2 - link strict
576 * @DCB_TC_ATTR_PARAM_BW_PCT: optional - (NLA_U8) If supported by the device and
577 * not configured to use link strict priority,
578 * this is the percentage of bandwidth of the
579 * priority group this traffic class belongs to
580 * @DCB_TC_ATTR_PARAM_ALL: (NLA_FLAG) all traffic class parameters
581 *
582 */
583enum dcbnl_tc_attrs {
584 DCB_TC_ATTR_PARAM_UNDEFINED,
585
586 DCB_TC_ATTR_PARAM_PGID,
587 DCB_TC_ATTR_PARAM_UP_MAPPING,
588 DCB_TC_ATTR_PARAM_STRICT_PRIO,
589 DCB_TC_ATTR_PARAM_BW_PCT,
590 DCB_TC_ATTR_PARAM_ALL,
591
592 __DCB_TC_ATTR_PARAM_ENUM_MAX,
593 DCB_TC_ATTR_PARAM_MAX = __DCB_TC_ATTR_PARAM_ENUM_MAX - 1,
594};
595
596/**
597 * enum dcbnl_cap_attrs - DCB Capability attributes
598 *
599 * @DCB_CAP_ATTR_UNDEFINED: unspecified attribute to catch errors
600 * @DCB_CAP_ATTR_ALL: (NLA_FLAG) all capability parameters
601 * @DCB_CAP_ATTR_PG: (NLA_U8) device supports Priority Groups
602 * @DCB_CAP_ATTR_PFC: (NLA_U8) device supports Priority Flow Control
603 * @DCB_CAP_ATTR_UP2TC: (NLA_U8) device supports user priority to
604 * traffic class mapping
605 * @DCB_CAP_ATTR_PG_TCS: (NLA_U8) bitmap where each bit represents a
606 * number of traffic classes the device
607 * can be configured to use for Priority Groups
608 * @DCB_CAP_ATTR_PFC_TCS: (NLA_U8) bitmap where each bit represents a
609 * number of traffic classes the device can be
610 * configured to use for Priority Flow Control
611 * @DCB_CAP_ATTR_GSP: (NLA_U8) device supports group strict priority
612 * @DCB_CAP_ATTR_BCN: (NLA_U8) device supports Backwards Congestion
613 * Notification
614 * @DCB_CAP_ATTR_DCBX: (NLA_U8) device supports DCBX engine
615 *
616 */
617enum dcbnl_cap_attrs {
618 DCB_CAP_ATTR_UNDEFINED,
619 DCB_CAP_ATTR_ALL,
620 DCB_CAP_ATTR_PG,
621 DCB_CAP_ATTR_PFC,
622 DCB_CAP_ATTR_UP2TC,
623 DCB_CAP_ATTR_PG_TCS,
624 DCB_CAP_ATTR_PFC_TCS,
625 DCB_CAP_ATTR_GSP,
626 DCB_CAP_ATTR_BCN,
627 DCB_CAP_ATTR_DCBX,
628
629 __DCB_CAP_ATTR_ENUM_MAX,
630 DCB_CAP_ATTR_MAX = __DCB_CAP_ATTR_ENUM_MAX - 1,
631};
632
633/**
634 * DCBX capability flags
635 *
636 * @DCB_CAP_DCBX_HOST: DCBX negotiation is performed by the host LLDP agent.
637 * 'set' routines are used to configure the device with
638 * the negotiated parameters
639 *
640 * @DCB_CAP_DCBX_LLD_MANAGED: DCBX negotiation is not performed in the host but
641 * by another entity
642 * 'get' routines are used to retrieve the
643 * negotiated parameters
644 * 'set' routines can be used to set the initial
645 * negotiation configuration
646 *
647 * @DCB_CAP_DCBX_VER_CEE: for a non-host DCBX engine, indicates the engine
648 * supports the CEE protocol flavor
649 *
650 * @DCB_CAP_DCBX_VER_IEEE: for a non-host DCBX engine, indicates the engine
651 * supports the IEEE protocol flavor
652 *
653 * @DCB_CAP_DCBX_STATIC: for a non-host DCBX engine, indicates the engine
654 * supports static configuration (i.e no actual
655 * negotiation is performed negotiated parameters equal
656 * the initial configuration)
657 *
658 */
659#define DCB_CAP_DCBX_HOST 0x01
660#define DCB_CAP_DCBX_LLD_MANAGED 0x02
661#define DCB_CAP_DCBX_VER_CEE 0x04
662#define DCB_CAP_DCBX_VER_IEEE 0x08
663#define DCB_CAP_DCBX_STATIC 0x10
664
665/**
666 * enum dcbnl_numtcs_attrs - number of traffic classes
667 *
668 * @DCB_NUMTCS_ATTR_UNDEFINED: unspecified attribute to catch errors
669 * @DCB_NUMTCS_ATTR_ALL: (NLA_FLAG) all traffic class attributes
670 * @DCB_NUMTCS_ATTR_PG: (NLA_U8) number of traffic classes used for
671 * priority groups
672 * @DCB_NUMTCS_ATTR_PFC: (NLA_U8) number of traffic classes which can
673 * support priority flow control
674 */
675enum dcbnl_numtcs_attrs {
676 DCB_NUMTCS_ATTR_UNDEFINED,
677 DCB_NUMTCS_ATTR_ALL,
678 DCB_NUMTCS_ATTR_PG,
679 DCB_NUMTCS_ATTR_PFC,
680
681 __DCB_NUMTCS_ATTR_ENUM_MAX,
682 DCB_NUMTCS_ATTR_MAX = __DCB_NUMTCS_ATTR_ENUM_MAX - 1,
683};
684
685enum dcbnl_bcn_attrs{
686 DCB_BCN_ATTR_UNDEFINED = 0,
687
688 DCB_BCN_ATTR_RP_0,
689 DCB_BCN_ATTR_RP_1,
690 DCB_BCN_ATTR_RP_2,
691 DCB_BCN_ATTR_RP_3,
692 DCB_BCN_ATTR_RP_4,
693 DCB_BCN_ATTR_RP_5,
694 DCB_BCN_ATTR_RP_6,
695 DCB_BCN_ATTR_RP_7,
696 DCB_BCN_ATTR_RP_ALL,
697
698 DCB_BCN_ATTR_BCNA_0,
699 DCB_BCN_ATTR_BCNA_1,
700 DCB_BCN_ATTR_ALPHA,
701 DCB_BCN_ATTR_BETA,
702 DCB_BCN_ATTR_GD,
703 DCB_BCN_ATTR_GI,
704 DCB_BCN_ATTR_TMAX,
705 DCB_BCN_ATTR_TD,
706 DCB_BCN_ATTR_RMIN,
707 DCB_BCN_ATTR_W,
708 DCB_BCN_ATTR_RD,
709 DCB_BCN_ATTR_RU,
710 DCB_BCN_ATTR_WRTT,
711 DCB_BCN_ATTR_RI,
712 DCB_BCN_ATTR_C,
713 DCB_BCN_ATTR_ALL,
714
715 __DCB_BCN_ATTR_ENUM_MAX,
716 DCB_BCN_ATTR_MAX = __DCB_BCN_ATTR_ENUM_MAX - 1,
717};
718
719/**
720 * enum dcb_general_attr_values - general DCB attribute values
721 *
722 * @DCB_ATTR_UNDEFINED: value used to indicate an attribute is not supported
723 *
724 */
725enum dcb_general_attr_values {
726 DCB_ATTR_VALUE_UNDEFINED = 0xff
727};
728
729#define DCB_APP_IDTYPE_ETHTYPE 0x00
730#define DCB_APP_IDTYPE_PORTNUM 0x01
731enum dcbnl_app_attrs {
732 DCB_APP_ATTR_UNDEFINED,
733
734 DCB_APP_ATTR_IDTYPE,
735 DCB_APP_ATTR_ID,
736 DCB_APP_ATTR_PRIORITY,
737
738 __DCB_APP_ATTR_ENUM_MAX,
739 DCB_APP_ATTR_MAX = __DCB_APP_ATTR_ENUM_MAX - 1,
740};
741
742/**
743 * enum dcbnl_featcfg_attrs - features conifiguration flags
744 *
745 * @DCB_FEATCFG_ATTR_UNDEFINED: unspecified attribute to catch errors
746 * @DCB_FEATCFG_ATTR_ALL: (NLA_FLAG) all features configuration attributes
747 * @DCB_FEATCFG_ATTR_PG: (NLA_U8) configuration flags for priority groups
748 * @DCB_FEATCFG_ATTR_PFC: (NLA_U8) configuration flags for priority
749 * flow control
750 * @DCB_FEATCFG_ATTR_APP: (NLA_U8) configuration flags for application TLV
751 *
752 */
753#define DCB_FEATCFG_ERROR 0x01 /* error in feature resolution */
754#define DCB_FEATCFG_ENABLE 0x02 /* enable feature */
755#define DCB_FEATCFG_WILLING 0x04 /* feature is willing */
756#define DCB_FEATCFG_ADVERTISE 0x08 /* advertise feature */
757enum dcbnl_featcfg_attrs {
758 DCB_FEATCFG_ATTR_UNDEFINED,
759 DCB_FEATCFG_ATTR_ALL,
760 DCB_FEATCFG_ATTR_PG,
761 DCB_FEATCFG_ATTR_PFC,
762 DCB_FEATCFG_ATTR_APP,
763
764 __DCB_FEATCFG_ATTR_ENUM_MAX,
765 DCB_FEATCFG_ATTR_MAX = __DCB_FEATCFG_ATTR_ENUM_MAX - 1,
766};
767
768#endif /* __LINUX_DCBNL_H__ */