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 */
58 struct 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 */
78 struct ieee_maxrate {
79 __u64 tc_maxrate[IEEE_8021QAZ_MAX_TCS];
80 };
81
82 enum 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
119 struct 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
141 struct 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 */
157 struct 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
168 struct 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 */
190 struct 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 */
207 struct 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 Differentiated Services Code Point (DSCP) value
237 * 6-7 Reserved
238 *
239 * Selector field values for CEE
240 * 0 Ethertype
241 * 1 Well known port number over TCP or UDP
242 * 2-3 Reserved
243 */
244 struct dcb_app {
245 __u8 selector;
246 __u8 priority;
247 __u16 protocol;
248 };
249
250 /**
251 * struct dcb_peer_app_info - APP feature information sent by the peer
252 *
253 * @willing: willing bit in the peer APP tlv
254 * @error: error bit in the peer APP tlv
255 *
256 * In addition to this information the full peer APP tlv also contains
257 * a table of 'app_count' APP objects defined above.
258 */
259 struct dcb_peer_app_info {
260 __u8 willing;
261 __u8 error;
262 };
263
264 struct dcbmsg {
265 __u8 dcb_family;
266 __u8 cmd;
267 __u16 dcb_pad;
268 };
269
270 /**
271 * enum dcbnl_commands - supported DCB commands
272 *
273 * @DCB_CMD_UNDEFINED: unspecified command to catch errors
274 * @DCB_CMD_GSTATE: request the state of DCB in the device
275 * @DCB_CMD_SSTATE: set the state of DCB in the device
276 * @DCB_CMD_PGTX_GCFG: request the priority group configuration for Tx
277 * @DCB_CMD_PGTX_SCFG: set the priority group configuration for Tx
278 * @DCB_CMD_PGRX_GCFG: request the priority group configuration for Rx
279 * @DCB_CMD_PGRX_SCFG: set the priority group configuration for Rx
280 * @DCB_CMD_PFC_GCFG: request the priority flow control configuration
281 * @DCB_CMD_PFC_SCFG: set the priority flow control configuration
282 * @DCB_CMD_SET_ALL: apply all changes to the underlying device
283 * @DCB_CMD_GPERM_HWADDR: get the permanent MAC address of the underlying
284 * device. Only useful when using bonding.
285 * @DCB_CMD_GCAP: request the DCB capabilities of the device
286 * @DCB_CMD_GNUMTCS: get the number of traffic classes currently supported
287 * @DCB_CMD_SNUMTCS: set the number of traffic classes
288 * @DCB_CMD_GBCN: set backward congestion notification configuration
289 * @DCB_CMD_SBCN: get backward congestion notification configration.
290 * @DCB_CMD_GAPP: get application protocol configuration
291 * @DCB_CMD_SAPP: set application protocol configuration
292 * @DCB_CMD_IEEE_SET: set IEEE 802.1Qaz configuration
293 * @DCB_CMD_IEEE_GET: get IEEE 802.1Qaz configuration
294 * @DCB_CMD_GDCBX: get DCBX engine configuration
295 * @DCB_CMD_SDCBX: set DCBX engine configuration
296 * @DCB_CMD_GFEATCFG: get DCBX features flags
297 * @DCB_CMD_SFEATCFG: set DCBX features negotiation flags
298 * @DCB_CMD_CEE_GET: get CEE aggregated configuration
299 * @DCB_CMD_IEEE_DEL: delete IEEE 802.1Qaz configuration
300 */
301 enum dcbnl_commands {
302 DCB_CMD_UNDEFINED,
303
304 DCB_CMD_GSTATE,
305 DCB_CMD_SSTATE,
306
307 DCB_CMD_PGTX_GCFG,
308 DCB_CMD_PGTX_SCFG,
309 DCB_CMD_PGRX_GCFG,
310 DCB_CMD_PGRX_SCFG,
311
312 DCB_CMD_PFC_GCFG,
313 DCB_CMD_PFC_SCFG,
314
315 DCB_CMD_SET_ALL,
316
317 DCB_CMD_GPERM_HWADDR,
318
319 DCB_CMD_GCAP,
320
321 DCB_CMD_GNUMTCS,
322 DCB_CMD_SNUMTCS,
323
324 DCB_CMD_PFC_GSTATE,
325 DCB_CMD_PFC_SSTATE,
326
327 DCB_CMD_BCN_GCFG,
328 DCB_CMD_BCN_SCFG,
329
330 DCB_CMD_GAPP,
331 DCB_CMD_SAPP,
332
333 DCB_CMD_IEEE_SET,
334 DCB_CMD_IEEE_GET,
335
336 DCB_CMD_GDCBX,
337 DCB_CMD_SDCBX,
338
339 DCB_CMD_GFEATCFG,
340 DCB_CMD_SFEATCFG,
341
342 DCB_CMD_CEE_GET,
343 DCB_CMD_IEEE_DEL,
344
345 __DCB_CMD_ENUM_MAX,
346 DCB_CMD_MAX = __DCB_CMD_ENUM_MAX - 1,
347 };
348
349 /**
350 * enum dcbnl_attrs - DCB top-level netlink attributes
351 *
352 * @DCB_ATTR_UNDEFINED: unspecified attribute to catch errors
353 * @DCB_ATTR_IFNAME: interface name of the underlying device (NLA_STRING)
354 * @DCB_ATTR_STATE: enable state of DCB in the device (NLA_U8)
355 * @DCB_ATTR_PFC_STATE: enable state of PFC in the device (NLA_U8)
356 * @DCB_ATTR_PFC_CFG: priority flow control configuration (NLA_NESTED)
357 * @DCB_ATTR_NUM_TC: number of traffic classes supported in the device (NLA_U8)
358 * @DCB_ATTR_PG_CFG: priority group configuration (NLA_NESTED)
359 * @DCB_ATTR_SET_ALL: bool to commit changes to hardware or not (NLA_U8)
360 * @DCB_ATTR_PERM_HWADDR: MAC address of the physical device (NLA_NESTED)
361 * @DCB_ATTR_CAP: DCB capabilities of the device (NLA_NESTED)
362 * @DCB_ATTR_NUMTCS: number of traffic classes supported (NLA_NESTED)
363 * @DCB_ATTR_BCN: backward congestion notification configuration (NLA_NESTED)
364 * @DCB_ATTR_IEEE: IEEE 802.1Qaz supported attributes (NLA_NESTED)
365 * @DCB_ATTR_DCBX: DCBX engine configuration in the device (NLA_U8)
366 * @DCB_ATTR_FEATCFG: DCBX features flags (NLA_NESTED)
367 * @DCB_ATTR_CEE: CEE std supported attributes (NLA_NESTED)
368 */
369 enum dcbnl_attrs {
370 DCB_ATTR_UNDEFINED,
371
372 DCB_ATTR_IFNAME,
373 DCB_ATTR_STATE,
374 DCB_ATTR_PFC_STATE,
375 DCB_ATTR_PFC_CFG,
376 DCB_ATTR_NUM_TC,
377 DCB_ATTR_PG_CFG,
378 DCB_ATTR_SET_ALL,
379 DCB_ATTR_PERM_HWADDR,
380 DCB_ATTR_CAP,
381 DCB_ATTR_NUMTCS,
382 DCB_ATTR_BCN,
383 DCB_ATTR_APP,
384
385 /* IEEE std attributes */
386 DCB_ATTR_IEEE,
387
388 DCB_ATTR_DCBX,
389 DCB_ATTR_FEATCFG,
390
391 /* CEE nested attributes */
392 DCB_ATTR_CEE,
393
394 __DCB_ATTR_ENUM_MAX,
395 DCB_ATTR_MAX = __DCB_ATTR_ENUM_MAX - 1,
396 };
397
398 /**
399 * enum ieee_attrs - IEEE 802.1Qaz get/set attributes
400 *
401 * @DCB_ATTR_IEEE_UNSPEC: unspecified
402 * @DCB_ATTR_IEEE_ETS: negotiated ETS configuration
403 * @DCB_ATTR_IEEE_PFC: negotiated PFC configuration
404 * @DCB_ATTR_IEEE_APP_TABLE: negotiated APP configuration
405 * @DCB_ATTR_IEEE_PEER_ETS: peer ETS configuration - get only
406 * @DCB_ATTR_IEEE_PEER_PFC: peer PFC configuration - get only
407 * @DCB_ATTR_IEEE_PEER_APP: peer APP tlv - get only
408 */
409 enum ieee_attrs {
410 DCB_ATTR_IEEE_UNSPEC,
411 DCB_ATTR_IEEE_ETS,
412 DCB_ATTR_IEEE_PFC,
413 DCB_ATTR_IEEE_APP_TABLE,
414 DCB_ATTR_IEEE_PEER_ETS,
415 DCB_ATTR_IEEE_PEER_PFC,
416 DCB_ATTR_IEEE_PEER_APP,
417 DCB_ATTR_IEEE_MAXRATE,
418 DCB_ATTR_IEEE_QCN,
419 DCB_ATTR_IEEE_QCN_STATS,
420 DCB_ATTR_DCB_BUFFER,
421 __DCB_ATTR_IEEE_MAX
422 };
423 #define DCB_ATTR_IEEE_MAX (__DCB_ATTR_IEEE_MAX - 1)
424
425 enum ieee_attrs_app {
426 DCB_ATTR_IEEE_APP_UNSPEC,
427 DCB_ATTR_IEEE_APP,
428 __DCB_ATTR_IEEE_APP_MAX
429 };
430 #define DCB_ATTR_IEEE_APP_MAX (__DCB_ATTR_IEEE_APP_MAX - 1)
431
432 /**
433 * enum cee_attrs - CEE DCBX get attributes.
434 *
435 * @DCB_ATTR_CEE_UNSPEC: unspecified
436 * @DCB_ATTR_CEE_PEER_PG: peer PG configuration - get only
437 * @DCB_ATTR_CEE_PEER_PFC: peer PFC configuration - get only
438 * @DCB_ATTR_CEE_PEER_APP_TABLE: peer APP tlv - get only
439 * @DCB_ATTR_CEE_TX_PG: TX PG configuration (DCB_CMD_PGTX_GCFG)
440 * @DCB_ATTR_CEE_RX_PG: RX PG configuration (DCB_CMD_PGRX_GCFG)
441 * @DCB_ATTR_CEE_PFC: PFC configuration (DCB_CMD_PFC_GCFG)
442 * @DCB_ATTR_CEE_APP_TABLE: APP configuration (multi DCB_CMD_GAPP)
443 * @DCB_ATTR_CEE_FEAT: DCBX features flags (DCB_CMD_GFEATCFG)
444 *
445 * An aggregated collection of the cee std negotiated parameters.
446 */
447 enum cee_attrs {
448 DCB_ATTR_CEE_UNSPEC,
449 DCB_ATTR_CEE_PEER_PG,
450 DCB_ATTR_CEE_PEER_PFC,
451 DCB_ATTR_CEE_PEER_APP_TABLE,
452 DCB_ATTR_CEE_TX_PG,
453 DCB_ATTR_CEE_RX_PG,
454 DCB_ATTR_CEE_PFC,
455 DCB_ATTR_CEE_APP_TABLE,
456 DCB_ATTR_CEE_FEAT,
457 __DCB_ATTR_CEE_MAX
458 };
459 #define DCB_ATTR_CEE_MAX (__DCB_ATTR_CEE_MAX - 1)
460
461 enum peer_app_attr {
462 DCB_ATTR_CEE_PEER_APP_UNSPEC,
463 DCB_ATTR_CEE_PEER_APP_INFO,
464 DCB_ATTR_CEE_PEER_APP,
465 __DCB_ATTR_CEE_PEER_APP_MAX
466 };
467 #define DCB_ATTR_CEE_PEER_APP_MAX (__DCB_ATTR_CEE_PEER_APP_MAX - 1)
468
469 enum cee_attrs_app {
470 DCB_ATTR_CEE_APP_UNSPEC,
471 DCB_ATTR_CEE_APP,
472 __DCB_ATTR_CEE_APP_MAX
473 };
474 #define DCB_ATTR_CEE_APP_MAX (__DCB_ATTR_CEE_APP_MAX - 1)
475
476 /**
477 * enum dcbnl_pfc_attrs - DCB Priority Flow Control user priority nested attrs
478 *
479 * @DCB_PFC_UP_ATTR_UNDEFINED: unspecified attribute to catch errors
480 * @DCB_PFC_UP_ATTR_0: Priority Flow Control value for User Priority 0 (NLA_U8)
481 * @DCB_PFC_UP_ATTR_1: Priority Flow Control value for User Priority 1 (NLA_U8)
482 * @DCB_PFC_UP_ATTR_2: Priority Flow Control value for User Priority 2 (NLA_U8)
483 * @DCB_PFC_UP_ATTR_3: Priority Flow Control value for User Priority 3 (NLA_U8)
484 * @DCB_PFC_UP_ATTR_4: Priority Flow Control value for User Priority 4 (NLA_U8)
485 * @DCB_PFC_UP_ATTR_5: Priority Flow Control value for User Priority 5 (NLA_U8)
486 * @DCB_PFC_UP_ATTR_6: Priority Flow Control value for User Priority 6 (NLA_U8)
487 * @DCB_PFC_UP_ATTR_7: Priority Flow Control value for User Priority 7 (NLA_U8)
488 * @DCB_PFC_UP_ATTR_MAX: highest attribute number currently defined
489 * @DCB_PFC_UP_ATTR_ALL: apply to all priority flow control attrs (NLA_FLAG)
490 *
491 */
492 enum dcbnl_pfc_up_attrs {
493 DCB_PFC_UP_ATTR_UNDEFINED,
494
495 DCB_PFC_UP_ATTR_0,
496 DCB_PFC_UP_ATTR_1,
497 DCB_PFC_UP_ATTR_2,
498 DCB_PFC_UP_ATTR_3,
499 DCB_PFC_UP_ATTR_4,
500 DCB_PFC_UP_ATTR_5,
501 DCB_PFC_UP_ATTR_6,
502 DCB_PFC_UP_ATTR_7,
503 DCB_PFC_UP_ATTR_ALL,
504
505 __DCB_PFC_UP_ATTR_ENUM_MAX,
506 DCB_PFC_UP_ATTR_MAX = __DCB_PFC_UP_ATTR_ENUM_MAX - 1,
507 };
508
509 /**
510 * enum dcbnl_pg_attrs - DCB Priority Group attributes
511 *
512 * @DCB_PG_ATTR_UNDEFINED: unspecified attribute to catch errors
513 * @DCB_PG_ATTR_TC_0: Priority Group Traffic Class 0 configuration (NLA_NESTED)
514 * @DCB_PG_ATTR_TC_1: Priority Group Traffic Class 1 configuration (NLA_NESTED)
515 * @DCB_PG_ATTR_TC_2: Priority Group Traffic Class 2 configuration (NLA_NESTED)
516 * @DCB_PG_ATTR_TC_3: Priority Group Traffic Class 3 configuration (NLA_NESTED)
517 * @DCB_PG_ATTR_TC_4: Priority Group Traffic Class 4 configuration (NLA_NESTED)
518 * @DCB_PG_ATTR_TC_5: Priority Group Traffic Class 5 configuration (NLA_NESTED)
519 * @DCB_PG_ATTR_TC_6: Priority Group Traffic Class 6 configuration (NLA_NESTED)
520 * @DCB_PG_ATTR_TC_7: Priority Group Traffic Class 7 configuration (NLA_NESTED)
521 * @DCB_PG_ATTR_TC_MAX: highest attribute number currently defined
522 * @DCB_PG_ATTR_TC_ALL: apply to all traffic classes (NLA_NESTED)
523 * @DCB_PG_ATTR_BW_ID_0: Percent of link bandwidth for Priority Group 0 (NLA_U8)
524 * @DCB_PG_ATTR_BW_ID_1: Percent of link bandwidth for Priority Group 1 (NLA_U8)
525 * @DCB_PG_ATTR_BW_ID_2: Percent of link bandwidth for Priority Group 2 (NLA_U8)
526 * @DCB_PG_ATTR_BW_ID_3: Percent of link bandwidth for Priority Group 3 (NLA_U8)
527 * @DCB_PG_ATTR_BW_ID_4: Percent of link bandwidth for Priority Group 4 (NLA_U8)
528 * @DCB_PG_ATTR_BW_ID_5: Percent of link bandwidth for Priority Group 5 (NLA_U8)
529 * @DCB_PG_ATTR_BW_ID_6: Percent of link bandwidth for Priority Group 6 (NLA_U8)
530 * @DCB_PG_ATTR_BW_ID_7: Percent of link bandwidth for Priority Group 7 (NLA_U8)
531 * @DCB_PG_ATTR_BW_ID_MAX: highest attribute number currently defined
532 * @DCB_PG_ATTR_BW_ID_ALL: apply to all priority groups (NLA_FLAG)
533 *
534 */
535 enum dcbnl_pg_attrs {
536 DCB_PG_ATTR_UNDEFINED,
537
538 DCB_PG_ATTR_TC_0,
539 DCB_PG_ATTR_TC_1,
540 DCB_PG_ATTR_TC_2,
541 DCB_PG_ATTR_TC_3,
542 DCB_PG_ATTR_TC_4,
543 DCB_PG_ATTR_TC_5,
544 DCB_PG_ATTR_TC_6,
545 DCB_PG_ATTR_TC_7,
546 DCB_PG_ATTR_TC_MAX,
547 DCB_PG_ATTR_TC_ALL,
548
549 DCB_PG_ATTR_BW_ID_0,
550 DCB_PG_ATTR_BW_ID_1,
551 DCB_PG_ATTR_BW_ID_2,
552 DCB_PG_ATTR_BW_ID_3,
553 DCB_PG_ATTR_BW_ID_4,
554 DCB_PG_ATTR_BW_ID_5,
555 DCB_PG_ATTR_BW_ID_6,
556 DCB_PG_ATTR_BW_ID_7,
557 DCB_PG_ATTR_BW_ID_MAX,
558 DCB_PG_ATTR_BW_ID_ALL,
559
560 __DCB_PG_ATTR_ENUM_MAX,
561 DCB_PG_ATTR_MAX = __DCB_PG_ATTR_ENUM_MAX - 1,
562 };
563
564 /**
565 * enum dcbnl_tc_attrs - DCB Traffic Class attributes
566 *
567 * @DCB_TC_ATTR_PARAM_UNDEFINED: unspecified attribute to catch errors
568 * @DCB_TC_ATTR_PARAM_PGID: (NLA_U8) Priority group the traffic class belongs to
569 * Valid values are: 0-7
570 * @DCB_TC_ATTR_PARAM_UP_MAPPING: (NLA_U8) Traffic class to user priority map
571 * Some devices may not support changing the
572 * user priority map of a TC.
573 * @DCB_TC_ATTR_PARAM_STRICT_PRIO: (NLA_U8) Strict priority setting
574 * 0 - none
575 * 1 - group strict
576 * 2 - link strict
577 * @DCB_TC_ATTR_PARAM_BW_PCT: optional - (NLA_U8) If supported by the device and
578 * not configured to use link strict priority,
579 * this is the percentage of bandwidth of the
580 * priority group this traffic class belongs to
581 * @DCB_TC_ATTR_PARAM_ALL: (NLA_FLAG) all traffic class parameters
582 *
583 */
584 enum dcbnl_tc_attrs {
585 DCB_TC_ATTR_PARAM_UNDEFINED,
586
587 DCB_TC_ATTR_PARAM_PGID,
588 DCB_TC_ATTR_PARAM_UP_MAPPING,
589 DCB_TC_ATTR_PARAM_STRICT_PRIO,
590 DCB_TC_ATTR_PARAM_BW_PCT,
591 DCB_TC_ATTR_PARAM_ALL,
592
593 __DCB_TC_ATTR_PARAM_ENUM_MAX,
594 DCB_TC_ATTR_PARAM_MAX = __DCB_TC_ATTR_PARAM_ENUM_MAX - 1,
595 };
596
597 /**
598 * enum dcbnl_cap_attrs - DCB Capability attributes
599 *
600 * @DCB_CAP_ATTR_UNDEFINED: unspecified attribute to catch errors
601 * @DCB_CAP_ATTR_ALL: (NLA_FLAG) all capability parameters
602 * @DCB_CAP_ATTR_PG: (NLA_U8) device supports Priority Groups
603 * @DCB_CAP_ATTR_PFC: (NLA_U8) device supports Priority Flow Control
604 * @DCB_CAP_ATTR_UP2TC: (NLA_U8) device supports user priority to
605 * traffic class mapping
606 * @DCB_CAP_ATTR_PG_TCS: (NLA_U8) bitmap where each bit represents a
607 * number of traffic classes the device
608 * can be configured to use for Priority Groups
609 * @DCB_CAP_ATTR_PFC_TCS: (NLA_U8) bitmap where each bit represents a
610 * number of traffic classes the device can be
611 * configured to use for Priority Flow Control
612 * @DCB_CAP_ATTR_GSP: (NLA_U8) device supports group strict priority
613 * @DCB_CAP_ATTR_BCN: (NLA_U8) device supports Backwards Congestion
614 * Notification
615 * @DCB_CAP_ATTR_DCBX: (NLA_U8) device supports DCBX engine
616 *
617 */
618 enum dcbnl_cap_attrs {
619 DCB_CAP_ATTR_UNDEFINED,
620 DCB_CAP_ATTR_ALL,
621 DCB_CAP_ATTR_PG,
622 DCB_CAP_ATTR_PFC,
623 DCB_CAP_ATTR_UP2TC,
624 DCB_CAP_ATTR_PG_TCS,
625 DCB_CAP_ATTR_PFC_TCS,
626 DCB_CAP_ATTR_GSP,
627 DCB_CAP_ATTR_BCN,
628 DCB_CAP_ATTR_DCBX,
629
630 __DCB_CAP_ATTR_ENUM_MAX,
631 DCB_CAP_ATTR_MAX = __DCB_CAP_ATTR_ENUM_MAX - 1,
632 };
633
634 /**
635 * DCBX capability flags
636 *
637 * @DCB_CAP_DCBX_HOST: DCBX negotiation is performed by the host LLDP agent.
638 * 'set' routines are used to configure the device with
639 * the negotiated parameters
640 *
641 * @DCB_CAP_DCBX_LLD_MANAGED: DCBX negotiation is not performed in the host but
642 * by another entity
643 * 'get' routines are used to retrieve the
644 * negotiated parameters
645 * 'set' routines can be used to set the initial
646 * negotiation configuration
647 *
648 * @DCB_CAP_DCBX_VER_CEE: for a non-host DCBX engine, indicates the engine
649 * supports the CEE protocol flavor
650 *
651 * @DCB_CAP_DCBX_VER_IEEE: for a non-host DCBX engine, indicates the engine
652 * supports the IEEE protocol flavor
653 *
654 * @DCB_CAP_DCBX_STATIC: for a non-host DCBX engine, indicates the engine
655 * supports static configuration (i.e no actual
656 * negotiation is performed negotiated parameters equal
657 * the initial configuration)
658 *
659 */
660 #define DCB_CAP_DCBX_HOST 0x01
661 #define DCB_CAP_DCBX_LLD_MANAGED 0x02
662 #define DCB_CAP_DCBX_VER_CEE 0x04
663 #define DCB_CAP_DCBX_VER_IEEE 0x08
664 #define DCB_CAP_DCBX_STATIC 0x10
665
666 /**
667 * enum dcbnl_numtcs_attrs - number of traffic classes
668 *
669 * @DCB_NUMTCS_ATTR_UNDEFINED: unspecified attribute to catch errors
670 * @DCB_NUMTCS_ATTR_ALL: (NLA_FLAG) all traffic class attributes
671 * @DCB_NUMTCS_ATTR_PG: (NLA_U8) number of traffic classes used for
672 * priority groups
673 * @DCB_NUMTCS_ATTR_PFC: (NLA_U8) number of traffic classes which can
674 * support priority flow control
675 */
676 enum dcbnl_numtcs_attrs {
677 DCB_NUMTCS_ATTR_UNDEFINED,
678 DCB_NUMTCS_ATTR_ALL,
679 DCB_NUMTCS_ATTR_PG,
680 DCB_NUMTCS_ATTR_PFC,
681
682 __DCB_NUMTCS_ATTR_ENUM_MAX,
683 DCB_NUMTCS_ATTR_MAX = __DCB_NUMTCS_ATTR_ENUM_MAX - 1,
684 };
685
686 enum dcbnl_bcn_attrs{
687 DCB_BCN_ATTR_UNDEFINED = 0,
688
689 DCB_BCN_ATTR_RP_0,
690 DCB_BCN_ATTR_RP_1,
691 DCB_BCN_ATTR_RP_2,
692 DCB_BCN_ATTR_RP_3,
693 DCB_BCN_ATTR_RP_4,
694 DCB_BCN_ATTR_RP_5,
695 DCB_BCN_ATTR_RP_6,
696 DCB_BCN_ATTR_RP_7,
697 DCB_BCN_ATTR_RP_ALL,
698
699 DCB_BCN_ATTR_BCNA_0,
700 DCB_BCN_ATTR_BCNA_1,
701 DCB_BCN_ATTR_ALPHA,
702 DCB_BCN_ATTR_BETA,
703 DCB_BCN_ATTR_GD,
704 DCB_BCN_ATTR_GI,
705 DCB_BCN_ATTR_TMAX,
706 DCB_BCN_ATTR_TD,
707 DCB_BCN_ATTR_RMIN,
708 DCB_BCN_ATTR_W,
709 DCB_BCN_ATTR_RD,
710 DCB_BCN_ATTR_RU,
711 DCB_BCN_ATTR_WRTT,
712 DCB_BCN_ATTR_RI,
713 DCB_BCN_ATTR_C,
714 DCB_BCN_ATTR_ALL,
715
716 __DCB_BCN_ATTR_ENUM_MAX,
717 DCB_BCN_ATTR_MAX = __DCB_BCN_ATTR_ENUM_MAX - 1,
718 };
719
720 /**
721 * enum dcb_general_attr_values - general DCB attribute values
722 *
723 * @DCB_ATTR_UNDEFINED: value used to indicate an attribute is not supported
724 *
725 */
726 enum dcb_general_attr_values {
727 DCB_ATTR_VALUE_UNDEFINED = 0xff
728 };
729
730 #define DCB_APP_IDTYPE_ETHTYPE 0x00
731 #define DCB_APP_IDTYPE_PORTNUM 0x01
732 enum dcbnl_app_attrs {
733 DCB_APP_ATTR_UNDEFINED,
734
735 DCB_APP_ATTR_IDTYPE,
736 DCB_APP_ATTR_ID,
737 DCB_APP_ATTR_PRIORITY,
738
739 __DCB_APP_ATTR_ENUM_MAX,
740 DCB_APP_ATTR_MAX = __DCB_APP_ATTR_ENUM_MAX - 1,
741 };
742
743 /**
744 * enum dcbnl_featcfg_attrs - features conifiguration flags
745 *
746 * @DCB_FEATCFG_ATTR_UNDEFINED: unspecified attribute to catch errors
747 * @DCB_FEATCFG_ATTR_ALL: (NLA_FLAG) all features configuration attributes
748 * @DCB_FEATCFG_ATTR_PG: (NLA_U8) configuration flags for priority groups
749 * @DCB_FEATCFG_ATTR_PFC: (NLA_U8) configuration flags for priority
750 * flow control
751 * @DCB_FEATCFG_ATTR_APP: (NLA_U8) configuration flags for application TLV
752 *
753 */
754 #define DCB_FEATCFG_ERROR 0x01 /* error in feature resolution */
755 #define DCB_FEATCFG_ENABLE 0x02 /* enable feature */
756 #define DCB_FEATCFG_WILLING 0x04 /* feature is willing */
757 #define DCB_FEATCFG_ADVERTISE 0x08 /* advertise feature */
758 enum dcbnl_featcfg_attrs {
759 DCB_FEATCFG_ATTR_UNDEFINED,
760 DCB_FEATCFG_ATTR_ALL,
761 DCB_FEATCFG_ATTR_PG,
762 DCB_FEATCFG_ATTR_PFC,
763 DCB_FEATCFG_ATTR_APP,
764
765 __DCB_FEATCFG_ATTR_ENUM_MAX,
766 DCB_FEATCFG_ATTR_MAX = __DCB_FEATCFG_ATTR_ENUM_MAX - 1,
767 };
768
769 #endif /* __LINUX_DCBNL_H__ */