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 /* Non-std selector values */
222 #define DCB_APP_SEL_PCP 255
223 
224 /* This structure contains the IEEE 802.1Qaz APP managed object. This
225  * object is also used for the CEE std as well.
226  *
227  * @selector: protocol identifier type
228  * @protocol: protocol of type indicated
229  * @priority: 3-bit unsigned integer indicating priority for IEEE
230  *            8-bit 802.1p user priority bitmap for CEE
231  *
232  * ----
233  *  Selector field values for IEEE 802.1Qaz
234  *	0	Reserved
235  *	1	Ethertype
236  *	2	Well known port number over TCP or SCTP
237  *	3	Well known port number over UDP or DCCP
238  *	4	Well known port number over TCP, SCTP, UDP, or DCCP
239  *	5	Differentiated Services Code Point (DSCP) value
240  *	6-7	Reserved
241  *
242  *  Selector field values for CEE
243  *	0	Ethertype
244  *	1	Well known port number over TCP or UDP
245  *	2-3	Reserved
246  */
247 struct dcb_app {
248 	__u8	selector;
249 	__u8	priority;
250 	__u16	protocol;
251 };
252 
253 #define IEEE_8021QAZ_APP_SEL_MAX 255
254 
255 /**
256  * struct dcb_peer_app_info - APP feature information sent by the peer
257  *
258  * @willing: willing bit in the peer APP tlv
259  * @error: error bit in the peer APP tlv
260  *
261  * In addition to this information the full peer APP tlv also contains
262  * a table of 'app_count' APP objects defined above.
263  */
264 struct dcb_peer_app_info {
265 	__u8	willing;
266 	__u8	error;
267 };
268 
269 struct dcbmsg {
270 	__u8               dcb_family;
271 	__u8               cmd;
272 	__u16              dcb_pad;
273 };
274 
275 /**
276  * enum dcbnl_commands - supported DCB commands
277  *
278  * @DCB_CMD_UNDEFINED: unspecified command to catch errors
279  * @DCB_CMD_GSTATE: request the state of DCB in the device
280  * @DCB_CMD_SSTATE: set the state of DCB in the device
281  * @DCB_CMD_PGTX_GCFG: request the priority group configuration for Tx
282  * @DCB_CMD_PGTX_SCFG: set the priority group configuration for Tx
283  * @DCB_CMD_PGRX_GCFG: request the priority group configuration for Rx
284  * @DCB_CMD_PGRX_SCFG: set the priority group configuration for Rx
285  * @DCB_CMD_PFC_GCFG: request the priority flow control configuration
286  * @DCB_CMD_PFC_SCFG: set the priority flow control configuration
287  * @DCB_CMD_SET_ALL: apply all changes to the underlying device
288  * @DCB_CMD_GPERM_HWADDR: get the permanent MAC address of the underlying
289  *                        device.  Only useful when using bonding.
290  * @DCB_CMD_GCAP: request the DCB capabilities of the device
291  * @DCB_CMD_GNUMTCS: get the number of traffic classes currently supported
292  * @DCB_CMD_SNUMTCS: set the number of traffic classes
293  * @DCB_CMD_GBCN: set backward congestion notification configuration
294  * @DCB_CMD_SBCN: get backward congestion notification configuration.
295  * @DCB_CMD_GAPP: get application protocol configuration
296  * @DCB_CMD_SAPP: set application protocol configuration
297  * @DCB_CMD_IEEE_SET: set IEEE 802.1Qaz configuration
298  * @DCB_CMD_IEEE_GET: get IEEE 802.1Qaz configuration
299  * @DCB_CMD_GDCBX: get DCBX engine configuration
300  * @DCB_CMD_SDCBX: set DCBX engine configuration
301  * @DCB_CMD_GFEATCFG: get DCBX features flags
302  * @DCB_CMD_SFEATCFG: set DCBX features negotiation flags
303  * @DCB_CMD_CEE_GET: get CEE aggregated configuration
304  * @DCB_CMD_IEEE_DEL: delete IEEE 802.1Qaz configuration
305  */
306 enum dcbnl_commands {
307 	DCB_CMD_UNDEFINED,
308 
309 	DCB_CMD_GSTATE,
310 	DCB_CMD_SSTATE,
311 
312 	DCB_CMD_PGTX_GCFG,
313 	DCB_CMD_PGTX_SCFG,
314 	DCB_CMD_PGRX_GCFG,
315 	DCB_CMD_PGRX_SCFG,
316 
317 	DCB_CMD_PFC_GCFG,
318 	DCB_CMD_PFC_SCFG,
319 
320 	DCB_CMD_SET_ALL,
321 
322 	DCB_CMD_GPERM_HWADDR,
323 
324 	DCB_CMD_GCAP,
325 
326 	DCB_CMD_GNUMTCS,
327 	DCB_CMD_SNUMTCS,
328 
329 	DCB_CMD_PFC_GSTATE,
330 	DCB_CMD_PFC_SSTATE,
331 
332 	DCB_CMD_BCN_GCFG,
333 	DCB_CMD_BCN_SCFG,
334 
335 	DCB_CMD_GAPP,
336 	DCB_CMD_SAPP,
337 
338 	DCB_CMD_IEEE_SET,
339 	DCB_CMD_IEEE_GET,
340 
341 	DCB_CMD_GDCBX,
342 	DCB_CMD_SDCBX,
343 
344 	DCB_CMD_GFEATCFG,
345 	DCB_CMD_SFEATCFG,
346 
347 	DCB_CMD_CEE_GET,
348 	DCB_CMD_IEEE_DEL,
349 
350 	__DCB_CMD_ENUM_MAX,
351 	DCB_CMD_MAX = __DCB_CMD_ENUM_MAX - 1,
352 };
353 
354 /**
355  * enum dcbnl_attrs - DCB top-level netlink attributes
356  *
357  * @DCB_ATTR_UNDEFINED: unspecified attribute to catch errors
358  * @DCB_ATTR_IFNAME: interface name of the underlying device (NLA_STRING)
359  * @DCB_ATTR_STATE: enable state of DCB in the device (NLA_U8)
360  * @DCB_ATTR_PFC_STATE: enable state of PFC in the device (NLA_U8)
361  * @DCB_ATTR_PFC_CFG: priority flow control configuration (NLA_NESTED)
362  * @DCB_ATTR_NUM_TC: number of traffic classes supported in the device (NLA_U8)
363  * @DCB_ATTR_PG_CFG: priority group configuration (NLA_NESTED)
364  * @DCB_ATTR_SET_ALL: bool to commit changes to hardware or not (NLA_U8)
365  * @DCB_ATTR_PERM_HWADDR: MAC address of the physical device (NLA_NESTED)
366  * @DCB_ATTR_CAP: DCB capabilities of the device (NLA_NESTED)
367  * @DCB_ATTR_NUMTCS: number of traffic classes supported (NLA_NESTED)
368  * @DCB_ATTR_BCN: backward congestion notification configuration (NLA_NESTED)
369  * @DCB_ATTR_IEEE: IEEE 802.1Qaz supported attributes (NLA_NESTED)
370  * @DCB_ATTR_DCBX: DCBX engine configuration in the device (NLA_U8)
371  * @DCB_ATTR_FEATCFG: DCBX features flags (NLA_NESTED)
372  * @DCB_ATTR_CEE: CEE std supported attributes (NLA_NESTED)
373  */
374 enum dcbnl_attrs {
375 	DCB_ATTR_UNDEFINED,
376 
377 	DCB_ATTR_IFNAME,
378 	DCB_ATTR_STATE,
379 	DCB_ATTR_PFC_STATE,
380 	DCB_ATTR_PFC_CFG,
381 	DCB_ATTR_NUM_TC,
382 	DCB_ATTR_PG_CFG,
383 	DCB_ATTR_SET_ALL,
384 	DCB_ATTR_PERM_HWADDR,
385 	DCB_ATTR_CAP,
386 	DCB_ATTR_NUMTCS,
387 	DCB_ATTR_BCN,
388 	DCB_ATTR_APP,
389 
390 	/* IEEE std attributes */
391 	DCB_ATTR_IEEE,
392 
393 	DCB_ATTR_DCBX,
394 	DCB_ATTR_FEATCFG,
395 
396 	/* CEE nested attributes */
397 	DCB_ATTR_CEE,
398 
399 	__DCB_ATTR_ENUM_MAX,
400 	DCB_ATTR_MAX = __DCB_ATTR_ENUM_MAX - 1,
401 };
402 
403 /**
404  * enum ieee_attrs - IEEE 802.1Qaz get/set attributes
405  *
406  * @DCB_ATTR_IEEE_UNSPEC: unspecified
407  * @DCB_ATTR_IEEE_ETS: negotiated ETS configuration
408  * @DCB_ATTR_IEEE_PFC: negotiated PFC configuration
409  * @DCB_ATTR_IEEE_APP_TABLE: negotiated APP configuration
410  * @DCB_ATTR_IEEE_PEER_ETS: peer ETS configuration - get only
411  * @DCB_ATTR_IEEE_PEER_PFC: peer PFC configuration - get only
412  * @DCB_ATTR_IEEE_PEER_APP: peer APP tlv - get only
413  * @DCB_ATTR_DCB_APP_TRUST_TABLE: selector trust table
414  * @DCB_ATTR_DCB_REWR_TABLE: rewrite configuration
415  */
416 enum ieee_attrs {
417 	DCB_ATTR_IEEE_UNSPEC,
418 	DCB_ATTR_IEEE_ETS,
419 	DCB_ATTR_IEEE_PFC,
420 	DCB_ATTR_IEEE_APP_TABLE,
421 	DCB_ATTR_IEEE_PEER_ETS,
422 	DCB_ATTR_IEEE_PEER_PFC,
423 	DCB_ATTR_IEEE_PEER_APP,
424 	DCB_ATTR_IEEE_MAXRATE,
425 	DCB_ATTR_IEEE_QCN,
426 	DCB_ATTR_IEEE_QCN_STATS,
427 	DCB_ATTR_DCB_BUFFER,
428 	DCB_ATTR_DCB_APP_TRUST_TABLE,
429 	DCB_ATTR_DCB_REWR_TABLE,
430 	__DCB_ATTR_IEEE_MAX
431 };
432 #define DCB_ATTR_IEEE_MAX (__DCB_ATTR_IEEE_MAX - 1)
433 
434 enum ieee_attrs_app {
435 	DCB_ATTR_IEEE_APP_UNSPEC,
436 	DCB_ATTR_IEEE_APP,
437 	DCB_ATTR_DCB_APP,
438 	__DCB_ATTR_IEEE_APP_MAX
439 };
440 #define DCB_ATTR_IEEE_APP_MAX (__DCB_ATTR_IEEE_APP_MAX - 1)
441 
442 /**
443  * enum cee_attrs - CEE DCBX get attributes.
444  *
445  * @DCB_ATTR_CEE_UNSPEC: unspecified
446  * @DCB_ATTR_CEE_PEER_PG: peer PG configuration - get only
447  * @DCB_ATTR_CEE_PEER_PFC: peer PFC configuration - get only
448  * @DCB_ATTR_CEE_PEER_APP_TABLE: peer APP tlv - get only
449  * @DCB_ATTR_CEE_TX_PG: TX PG configuration (DCB_CMD_PGTX_GCFG)
450  * @DCB_ATTR_CEE_RX_PG: RX PG configuration (DCB_CMD_PGRX_GCFG)
451  * @DCB_ATTR_CEE_PFC: PFC configuration (DCB_CMD_PFC_GCFG)
452  * @DCB_ATTR_CEE_APP_TABLE: APP configuration (multi DCB_CMD_GAPP)
453  * @DCB_ATTR_CEE_FEAT: DCBX features flags (DCB_CMD_GFEATCFG)
454  *
455  * An aggregated collection of the cee std negotiated parameters.
456  */
457 enum cee_attrs {
458 	DCB_ATTR_CEE_UNSPEC,
459 	DCB_ATTR_CEE_PEER_PG,
460 	DCB_ATTR_CEE_PEER_PFC,
461 	DCB_ATTR_CEE_PEER_APP_TABLE,
462 	DCB_ATTR_CEE_TX_PG,
463 	DCB_ATTR_CEE_RX_PG,
464 	DCB_ATTR_CEE_PFC,
465 	DCB_ATTR_CEE_APP_TABLE,
466 	DCB_ATTR_CEE_FEAT,
467 	__DCB_ATTR_CEE_MAX
468 };
469 #define DCB_ATTR_CEE_MAX (__DCB_ATTR_CEE_MAX - 1)
470 
471 enum peer_app_attr {
472 	DCB_ATTR_CEE_PEER_APP_UNSPEC,
473 	DCB_ATTR_CEE_PEER_APP_INFO,
474 	DCB_ATTR_CEE_PEER_APP,
475 	__DCB_ATTR_CEE_PEER_APP_MAX
476 };
477 #define DCB_ATTR_CEE_PEER_APP_MAX (__DCB_ATTR_CEE_PEER_APP_MAX - 1)
478 
479 enum cee_attrs_app {
480 	DCB_ATTR_CEE_APP_UNSPEC,
481 	DCB_ATTR_CEE_APP,
482 	__DCB_ATTR_CEE_APP_MAX
483 };
484 #define DCB_ATTR_CEE_APP_MAX (__DCB_ATTR_CEE_APP_MAX - 1)
485 
486 /**
487  * enum dcbnl_pfc_attrs - DCB Priority Flow Control user priority nested attrs
488  *
489  * @DCB_PFC_UP_ATTR_UNDEFINED: unspecified attribute to catch errors
490  * @DCB_PFC_UP_ATTR_0: Priority Flow Control value for User Priority 0 (NLA_U8)
491  * @DCB_PFC_UP_ATTR_1: Priority Flow Control value for User Priority 1 (NLA_U8)
492  * @DCB_PFC_UP_ATTR_2: Priority Flow Control value for User Priority 2 (NLA_U8)
493  * @DCB_PFC_UP_ATTR_3: Priority Flow Control value for User Priority 3 (NLA_U8)
494  * @DCB_PFC_UP_ATTR_4: Priority Flow Control value for User Priority 4 (NLA_U8)
495  * @DCB_PFC_UP_ATTR_5: Priority Flow Control value for User Priority 5 (NLA_U8)
496  * @DCB_PFC_UP_ATTR_6: Priority Flow Control value for User Priority 6 (NLA_U8)
497  * @DCB_PFC_UP_ATTR_7: Priority Flow Control value for User Priority 7 (NLA_U8)
498  * @DCB_PFC_UP_ATTR_MAX: highest attribute number currently defined
499  * @DCB_PFC_UP_ATTR_ALL: apply to all priority flow control attrs (NLA_FLAG)
500  *
501  */
502 enum dcbnl_pfc_up_attrs {
503 	DCB_PFC_UP_ATTR_UNDEFINED,
504 
505 	DCB_PFC_UP_ATTR_0,
506 	DCB_PFC_UP_ATTR_1,
507 	DCB_PFC_UP_ATTR_2,
508 	DCB_PFC_UP_ATTR_3,
509 	DCB_PFC_UP_ATTR_4,
510 	DCB_PFC_UP_ATTR_5,
511 	DCB_PFC_UP_ATTR_6,
512 	DCB_PFC_UP_ATTR_7,
513 	DCB_PFC_UP_ATTR_ALL,
514 
515 	__DCB_PFC_UP_ATTR_ENUM_MAX,
516 	DCB_PFC_UP_ATTR_MAX = __DCB_PFC_UP_ATTR_ENUM_MAX - 1,
517 };
518 
519 /**
520  * enum dcbnl_pg_attrs - DCB Priority Group attributes
521  *
522  * @DCB_PG_ATTR_UNDEFINED: unspecified attribute to catch errors
523  * @DCB_PG_ATTR_TC_0: Priority Group Traffic Class 0 configuration (NLA_NESTED)
524  * @DCB_PG_ATTR_TC_1: Priority Group Traffic Class 1 configuration (NLA_NESTED)
525  * @DCB_PG_ATTR_TC_2: Priority Group Traffic Class 2 configuration (NLA_NESTED)
526  * @DCB_PG_ATTR_TC_3: Priority Group Traffic Class 3 configuration (NLA_NESTED)
527  * @DCB_PG_ATTR_TC_4: Priority Group Traffic Class 4 configuration (NLA_NESTED)
528  * @DCB_PG_ATTR_TC_5: Priority Group Traffic Class 5 configuration (NLA_NESTED)
529  * @DCB_PG_ATTR_TC_6: Priority Group Traffic Class 6 configuration (NLA_NESTED)
530  * @DCB_PG_ATTR_TC_7: Priority Group Traffic Class 7 configuration (NLA_NESTED)
531  * @DCB_PG_ATTR_TC_MAX: highest attribute number currently defined
532  * @DCB_PG_ATTR_TC_ALL: apply to all traffic classes (NLA_NESTED)
533  * @DCB_PG_ATTR_BW_ID_0: Percent of link bandwidth for Priority Group 0 (NLA_U8)
534  * @DCB_PG_ATTR_BW_ID_1: Percent of link bandwidth for Priority Group 1 (NLA_U8)
535  * @DCB_PG_ATTR_BW_ID_2: Percent of link bandwidth for Priority Group 2 (NLA_U8)
536  * @DCB_PG_ATTR_BW_ID_3: Percent of link bandwidth for Priority Group 3 (NLA_U8)
537  * @DCB_PG_ATTR_BW_ID_4: Percent of link bandwidth for Priority Group 4 (NLA_U8)
538  * @DCB_PG_ATTR_BW_ID_5: Percent of link bandwidth for Priority Group 5 (NLA_U8)
539  * @DCB_PG_ATTR_BW_ID_6: Percent of link bandwidth for Priority Group 6 (NLA_U8)
540  * @DCB_PG_ATTR_BW_ID_7: Percent of link bandwidth for Priority Group 7 (NLA_U8)
541  * @DCB_PG_ATTR_BW_ID_MAX: highest attribute number currently defined
542  * @DCB_PG_ATTR_BW_ID_ALL: apply to all priority groups (NLA_FLAG)
543  *
544  */
545 enum dcbnl_pg_attrs {
546 	DCB_PG_ATTR_UNDEFINED,
547 
548 	DCB_PG_ATTR_TC_0,
549 	DCB_PG_ATTR_TC_1,
550 	DCB_PG_ATTR_TC_2,
551 	DCB_PG_ATTR_TC_3,
552 	DCB_PG_ATTR_TC_4,
553 	DCB_PG_ATTR_TC_5,
554 	DCB_PG_ATTR_TC_6,
555 	DCB_PG_ATTR_TC_7,
556 	DCB_PG_ATTR_TC_MAX,
557 	DCB_PG_ATTR_TC_ALL,
558 
559 	DCB_PG_ATTR_BW_ID_0,
560 	DCB_PG_ATTR_BW_ID_1,
561 	DCB_PG_ATTR_BW_ID_2,
562 	DCB_PG_ATTR_BW_ID_3,
563 	DCB_PG_ATTR_BW_ID_4,
564 	DCB_PG_ATTR_BW_ID_5,
565 	DCB_PG_ATTR_BW_ID_6,
566 	DCB_PG_ATTR_BW_ID_7,
567 	DCB_PG_ATTR_BW_ID_MAX,
568 	DCB_PG_ATTR_BW_ID_ALL,
569 
570 	__DCB_PG_ATTR_ENUM_MAX,
571 	DCB_PG_ATTR_MAX = __DCB_PG_ATTR_ENUM_MAX - 1,
572 };
573 
574 /**
575  * enum dcbnl_tc_attrs - DCB Traffic Class attributes
576  *
577  * @DCB_TC_ATTR_PARAM_UNDEFINED: unspecified attribute to catch errors
578  * @DCB_TC_ATTR_PARAM_PGID: (NLA_U8) Priority group the traffic class belongs to
579  *                          Valid values are:  0-7
580  * @DCB_TC_ATTR_PARAM_UP_MAPPING: (NLA_U8) Traffic class to user priority map
581  *                                Some devices may not support changing the
582  *                                user priority map of a TC.
583  * @DCB_TC_ATTR_PARAM_STRICT_PRIO: (NLA_U8) Strict priority setting
584  *                                 0 - none
585  *                                 1 - group strict
586  *                                 2 - link strict
587  * @DCB_TC_ATTR_PARAM_BW_PCT: optional - (NLA_U8) If supported by the device and
588  *                            not configured to use link strict priority,
589  *                            this is the percentage of bandwidth of the
590  *                            priority group this traffic class belongs to
591  * @DCB_TC_ATTR_PARAM_ALL: (NLA_FLAG) all traffic class parameters
592  *
593  */
594 enum dcbnl_tc_attrs {
595 	DCB_TC_ATTR_PARAM_UNDEFINED,
596 
597 	DCB_TC_ATTR_PARAM_PGID,
598 	DCB_TC_ATTR_PARAM_UP_MAPPING,
599 	DCB_TC_ATTR_PARAM_STRICT_PRIO,
600 	DCB_TC_ATTR_PARAM_BW_PCT,
601 	DCB_TC_ATTR_PARAM_ALL,
602 
603 	__DCB_TC_ATTR_PARAM_ENUM_MAX,
604 	DCB_TC_ATTR_PARAM_MAX = __DCB_TC_ATTR_PARAM_ENUM_MAX - 1,
605 };
606 
607 /**
608  * enum dcbnl_cap_attrs - DCB Capability attributes
609  *
610  * @DCB_CAP_ATTR_UNDEFINED: unspecified attribute to catch errors
611  * @DCB_CAP_ATTR_ALL: (NLA_FLAG) all capability parameters
612  * @DCB_CAP_ATTR_PG: (NLA_U8) device supports Priority Groups
613  * @DCB_CAP_ATTR_PFC: (NLA_U8) device supports Priority Flow Control
614  * @DCB_CAP_ATTR_UP2TC: (NLA_U8) device supports user priority to
615  *                               traffic class mapping
616  * @DCB_CAP_ATTR_PG_TCS: (NLA_U8) bitmap where each bit represents a
617  *                                number of traffic classes the device
618  *                                can be configured to use for Priority Groups
619  * @DCB_CAP_ATTR_PFC_TCS: (NLA_U8) bitmap where each bit represents a
620  *                                 number of traffic classes the device can be
621  *                                 configured to use for Priority Flow Control
622  * @DCB_CAP_ATTR_GSP: (NLA_U8) device supports group strict priority
623  * @DCB_CAP_ATTR_BCN: (NLA_U8) device supports Backwards Congestion
624  *                             Notification
625  * @DCB_CAP_ATTR_DCBX: (NLA_U8) device supports DCBX engine
626  *
627  */
628 enum dcbnl_cap_attrs {
629 	DCB_CAP_ATTR_UNDEFINED,
630 	DCB_CAP_ATTR_ALL,
631 	DCB_CAP_ATTR_PG,
632 	DCB_CAP_ATTR_PFC,
633 	DCB_CAP_ATTR_UP2TC,
634 	DCB_CAP_ATTR_PG_TCS,
635 	DCB_CAP_ATTR_PFC_TCS,
636 	DCB_CAP_ATTR_GSP,
637 	DCB_CAP_ATTR_BCN,
638 	DCB_CAP_ATTR_DCBX,
639 
640 	__DCB_CAP_ATTR_ENUM_MAX,
641 	DCB_CAP_ATTR_MAX = __DCB_CAP_ATTR_ENUM_MAX - 1,
642 };
643 
644 /**
645  * DCBX capability flags
646  *
647  * @DCB_CAP_DCBX_HOST: DCBX negotiation is performed by the host LLDP agent.
648  *                     'set' routines are used to configure the device with
649  *                     the negotiated parameters
650  *
651  * @DCB_CAP_DCBX_LLD_MANAGED: DCBX negotiation is not performed in the host but
652  *                            by another entity
653  *                            'get' routines are used to retrieve the
654  *                            negotiated parameters
655  *                            'set' routines can be used to set the initial
656  *                            negotiation configuration
657  *
658  * @DCB_CAP_DCBX_VER_CEE: for a non-host DCBX engine, indicates the engine
659  *                        supports the CEE protocol flavor
660  *
661  * @DCB_CAP_DCBX_VER_IEEE: for a non-host DCBX engine, indicates the engine
662  *                         supports the IEEE protocol flavor
663  *
664  * @DCB_CAP_DCBX_STATIC: for a non-host DCBX engine, indicates the engine
665  *                       supports static configuration (i.e no actual
666  *                       negotiation is performed negotiated parameters equal
667  *                       the initial configuration)
668  *
669  */
670 #define DCB_CAP_DCBX_HOST		0x01
671 #define DCB_CAP_DCBX_LLD_MANAGED	0x02
672 #define DCB_CAP_DCBX_VER_CEE		0x04
673 #define DCB_CAP_DCBX_VER_IEEE		0x08
674 #define DCB_CAP_DCBX_STATIC		0x10
675 
676 /**
677  * enum dcbnl_numtcs_attrs - number of traffic classes
678  *
679  * @DCB_NUMTCS_ATTR_UNDEFINED: unspecified attribute to catch errors
680  * @DCB_NUMTCS_ATTR_ALL: (NLA_FLAG) all traffic class attributes
681  * @DCB_NUMTCS_ATTR_PG: (NLA_U8) number of traffic classes used for
682  *                               priority groups
683  * @DCB_NUMTCS_ATTR_PFC: (NLA_U8) number of traffic classes which can
684  *                                support priority flow control
685  */
686 enum dcbnl_numtcs_attrs {
687 	DCB_NUMTCS_ATTR_UNDEFINED,
688 	DCB_NUMTCS_ATTR_ALL,
689 	DCB_NUMTCS_ATTR_PG,
690 	DCB_NUMTCS_ATTR_PFC,
691 
692 	__DCB_NUMTCS_ATTR_ENUM_MAX,
693 	DCB_NUMTCS_ATTR_MAX = __DCB_NUMTCS_ATTR_ENUM_MAX - 1,
694 };
695 
696 enum dcbnl_bcn_attrs{
697 	DCB_BCN_ATTR_UNDEFINED = 0,
698 
699 	DCB_BCN_ATTR_RP_0,
700 	DCB_BCN_ATTR_RP_1,
701 	DCB_BCN_ATTR_RP_2,
702 	DCB_BCN_ATTR_RP_3,
703 	DCB_BCN_ATTR_RP_4,
704 	DCB_BCN_ATTR_RP_5,
705 	DCB_BCN_ATTR_RP_6,
706 	DCB_BCN_ATTR_RP_7,
707 	DCB_BCN_ATTR_RP_ALL,
708 
709 	DCB_BCN_ATTR_BCNA_0,
710 	DCB_BCN_ATTR_BCNA_1,
711 	DCB_BCN_ATTR_ALPHA,
712 	DCB_BCN_ATTR_BETA,
713 	DCB_BCN_ATTR_GD,
714 	DCB_BCN_ATTR_GI,
715 	DCB_BCN_ATTR_TMAX,
716 	DCB_BCN_ATTR_TD,
717 	DCB_BCN_ATTR_RMIN,
718 	DCB_BCN_ATTR_W,
719 	DCB_BCN_ATTR_RD,
720 	DCB_BCN_ATTR_RU,
721 	DCB_BCN_ATTR_WRTT,
722 	DCB_BCN_ATTR_RI,
723 	DCB_BCN_ATTR_C,
724 	DCB_BCN_ATTR_ALL,
725 
726 	__DCB_BCN_ATTR_ENUM_MAX,
727 	DCB_BCN_ATTR_MAX = __DCB_BCN_ATTR_ENUM_MAX - 1,
728 };
729 
730 /**
731  * enum dcb_general_attr_values - general DCB attribute values
732  *
733  * @DCB_ATTR_UNDEFINED: value used to indicate an attribute is not supported
734  *
735  */
736 enum dcb_general_attr_values {
737 	DCB_ATTR_VALUE_UNDEFINED = 0xff
738 };
739 
740 #define DCB_APP_IDTYPE_ETHTYPE	0x00
741 #define DCB_APP_IDTYPE_PORTNUM	0x01
742 enum dcbnl_app_attrs {
743 	DCB_APP_ATTR_UNDEFINED,
744 
745 	DCB_APP_ATTR_IDTYPE,
746 	DCB_APP_ATTR_ID,
747 	DCB_APP_ATTR_PRIORITY,
748 
749 	__DCB_APP_ATTR_ENUM_MAX,
750 	DCB_APP_ATTR_MAX = __DCB_APP_ATTR_ENUM_MAX - 1,
751 };
752 
753 /**
754  * enum dcbnl_featcfg_attrs - features conifiguration flags
755  *
756  * @DCB_FEATCFG_ATTR_UNDEFINED: unspecified attribute to catch errors
757  * @DCB_FEATCFG_ATTR_ALL: (NLA_FLAG) all features configuration attributes
758  * @DCB_FEATCFG_ATTR_PG: (NLA_U8) configuration flags for priority groups
759  * @DCB_FEATCFG_ATTR_PFC: (NLA_U8) configuration flags for priority
760  *                                 flow control
761  * @DCB_FEATCFG_ATTR_APP: (NLA_U8) configuration flags for application TLV
762  *
763  */
764 #define DCB_FEATCFG_ERROR	0x01	/* error in feature resolution */
765 #define DCB_FEATCFG_ENABLE	0x02	/* enable feature */
766 #define DCB_FEATCFG_WILLING	0x04	/* feature is willing */
767 #define DCB_FEATCFG_ADVERTISE	0x08	/* advertise feature */
768 enum dcbnl_featcfg_attrs {
769 	DCB_FEATCFG_ATTR_UNDEFINED,
770 	DCB_FEATCFG_ATTR_ALL,
771 	DCB_FEATCFG_ATTR_PG,
772 	DCB_FEATCFG_ATTR_PFC,
773 	DCB_FEATCFG_ATTR_APP,
774 
775 	__DCB_FEATCFG_ATTR_ENUM_MAX,
776 	DCB_FEATCFG_ATTR_MAX = __DCB_FEATCFG_ATTR_ENUM_MAX - 1,
777 };
778 
779 #endif /* __LINUX_DCBNL_H__ */
780