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 /* CEE DCBX std supported values */
167 #define CEE_DCBX_MAX_PGS	8
168 #define CEE_DCBX_MAX_PRIO	8
169 
170 /**
171  * struct cee_pg - CEE Priority-Group managed object
172  *
173  * @willing: willing bit in the PG tlv
174  * @error: error bit in the PG tlv
175  * @pg_en: enable bit of the PG feature
176  * @tcs_supported: number of traffic classes supported
177  * @pg_bw: bandwidth percentage for each priority group
178  * @prio_pg: priority to PG mapping indexed by priority
179  */
180 struct cee_pg {
181 	__u8    willing;
182 	__u8    error;
183 	__u8    pg_en;
184 	__u8    tcs_supported;
185 	__u8    pg_bw[CEE_DCBX_MAX_PGS];
186 	__u8    prio_pg[CEE_DCBX_MAX_PGS];
187 };
188 
189 /**
190  * struct cee_pfc - CEE PFC managed object
191  *
192  * @willing: willing bit in the PFC tlv
193  * @error: error bit in the PFC tlv
194  * @pfc_en: bitmap indicating pfc enabled traffic classes
195  * @tcs_supported: number of traffic classes supported
196  */
197 struct cee_pfc {
198 	__u8    willing;
199 	__u8    error;
200 	__u8    pfc_en;
201 	__u8    tcs_supported;
202 };
203 
204 /* IEEE 802.1Qaz std supported values */
205 #define IEEE_8021QAZ_APP_SEL_ETHERTYPE	1
206 #define IEEE_8021QAZ_APP_SEL_STREAM	2
207 #define IEEE_8021QAZ_APP_SEL_DGRAM	3
208 #define IEEE_8021QAZ_APP_SEL_ANY	4
209 #define IEEE_8021QAZ_APP_SEL_DSCP       5
210 
211 /* This structure contains the IEEE 802.1Qaz APP managed object. This
212  * object is also used for the CEE std as well.
213  *
214  * @selector: protocol identifier type
215  * @protocol: protocol of type indicated
216  * @priority: 3-bit unsigned integer indicating priority for IEEE
217  *            8-bit 802.1p user priority bitmap for CEE
218  *
219  * ----
220  *  Selector field values for IEEE 802.1Qaz
221  *	0	Reserved
222  *	1	Ethertype
223  *	2	Well known port number over TCP or SCTP
224  *	3	Well known port number over UDP or DCCP
225  *	4	Well known port number over TCP, SCTP, UDP, or DCCP
226  *	5-7	Reserved
227  *
228  *  Selector field values for CEE
229  *	0	Ethertype
230  *	1	Well known port number over TCP or UDP
231  *	2-3	Reserved
232  */
233 struct dcb_app {
234 	__u8	selector;
235 	__u8	priority;
236 	__u16	protocol;
237 };
238 
239 /**
240  * struct dcb_peer_app_info - APP feature information sent by the peer
241  *
242  * @willing: willing bit in the peer APP tlv
243  * @error: error bit in the peer APP tlv
244  *
245  * In addition to this information the full peer APP tlv also contains
246  * a table of 'app_count' APP objects defined above.
247  */
248 struct dcb_peer_app_info {
249 	__u8	willing;
250 	__u8	error;
251 };
252 
253 struct dcbmsg {
254 	__u8               dcb_family;
255 	__u8               cmd;
256 	__u16              dcb_pad;
257 };
258 
259 /**
260  * enum dcbnl_commands - supported DCB commands
261  *
262  * @DCB_CMD_UNDEFINED: unspecified command to catch errors
263  * @DCB_CMD_GSTATE: request the state of DCB in the device
264  * @DCB_CMD_SSTATE: set the state of DCB in the device
265  * @DCB_CMD_PGTX_GCFG: request the priority group configuration for Tx
266  * @DCB_CMD_PGTX_SCFG: set the priority group configuration for Tx
267  * @DCB_CMD_PGRX_GCFG: request the priority group configuration for Rx
268  * @DCB_CMD_PGRX_SCFG: set the priority group configuration for Rx
269  * @DCB_CMD_PFC_GCFG: request the priority flow control configuration
270  * @DCB_CMD_PFC_SCFG: set the priority flow control configuration
271  * @DCB_CMD_SET_ALL: apply all changes to the underlying device
272  * @DCB_CMD_GPERM_HWADDR: get the permanent MAC address of the underlying
273  *                        device.  Only useful when using bonding.
274  * @DCB_CMD_GCAP: request the DCB capabilities of the device
275  * @DCB_CMD_GNUMTCS: get the number of traffic classes currently supported
276  * @DCB_CMD_SNUMTCS: set the number of traffic classes
277  * @DCB_CMD_GBCN: set backward congestion notification configuration
278  * @DCB_CMD_SBCN: get backward congestion notification configration.
279  * @DCB_CMD_GAPP: get application protocol configuration
280  * @DCB_CMD_SAPP: set application protocol configuration
281  * @DCB_CMD_IEEE_SET: set IEEE 802.1Qaz configuration
282  * @DCB_CMD_IEEE_GET: get IEEE 802.1Qaz configuration
283  * @DCB_CMD_GDCBX: get DCBX engine configuration
284  * @DCB_CMD_SDCBX: set DCBX engine configuration
285  * @DCB_CMD_GFEATCFG: get DCBX features flags
286  * @DCB_CMD_SFEATCFG: set DCBX features negotiation flags
287  * @DCB_CMD_CEE_GET: get CEE aggregated configuration
288  * @DCB_CMD_IEEE_DEL: delete IEEE 802.1Qaz configuration
289  */
290 enum dcbnl_commands {
291 	DCB_CMD_UNDEFINED,
292 
293 	DCB_CMD_GSTATE,
294 	DCB_CMD_SSTATE,
295 
296 	DCB_CMD_PGTX_GCFG,
297 	DCB_CMD_PGTX_SCFG,
298 	DCB_CMD_PGRX_GCFG,
299 	DCB_CMD_PGRX_SCFG,
300 
301 	DCB_CMD_PFC_GCFG,
302 	DCB_CMD_PFC_SCFG,
303 
304 	DCB_CMD_SET_ALL,
305 
306 	DCB_CMD_GPERM_HWADDR,
307 
308 	DCB_CMD_GCAP,
309 
310 	DCB_CMD_GNUMTCS,
311 	DCB_CMD_SNUMTCS,
312 
313 	DCB_CMD_PFC_GSTATE,
314 	DCB_CMD_PFC_SSTATE,
315 
316 	DCB_CMD_BCN_GCFG,
317 	DCB_CMD_BCN_SCFG,
318 
319 	DCB_CMD_GAPP,
320 	DCB_CMD_SAPP,
321 
322 	DCB_CMD_IEEE_SET,
323 	DCB_CMD_IEEE_GET,
324 
325 	DCB_CMD_GDCBX,
326 	DCB_CMD_SDCBX,
327 
328 	DCB_CMD_GFEATCFG,
329 	DCB_CMD_SFEATCFG,
330 
331 	DCB_CMD_CEE_GET,
332 	DCB_CMD_IEEE_DEL,
333 
334 	__DCB_CMD_ENUM_MAX,
335 	DCB_CMD_MAX = __DCB_CMD_ENUM_MAX - 1,
336 };
337 
338 /**
339  * enum dcbnl_attrs - DCB top-level netlink attributes
340  *
341  * @DCB_ATTR_UNDEFINED: unspecified attribute to catch errors
342  * @DCB_ATTR_IFNAME: interface name of the underlying device (NLA_STRING)
343  * @DCB_ATTR_STATE: enable state of DCB in the device (NLA_U8)
344  * @DCB_ATTR_PFC_STATE: enable state of PFC in the device (NLA_U8)
345  * @DCB_ATTR_PFC_CFG: priority flow control configuration (NLA_NESTED)
346  * @DCB_ATTR_NUM_TC: number of traffic classes supported in the device (NLA_U8)
347  * @DCB_ATTR_PG_CFG: priority group configuration (NLA_NESTED)
348  * @DCB_ATTR_SET_ALL: bool to commit changes to hardware or not (NLA_U8)
349  * @DCB_ATTR_PERM_HWADDR: MAC address of the physical device (NLA_NESTED)
350  * @DCB_ATTR_CAP: DCB capabilities of the device (NLA_NESTED)
351  * @DCB_ATTR_NUMTCS: number of traffic classes supported (NLA_NESTED)
352  * @DCB_ATTR_BCN: backward congestion notification configuration (NLA_NESTED)
353  * @DCB_ATTR_IEEE: IEEE 802.1Qaz supported attributes (NLA_NESTED)
354  * @DCB_ATTR_DCBX: DCBX engine configuration in the device (NLA_U8)
355  * @DCB_ATTR_FEATCFG: DCBX features flags (NLA_NESTED)
356  * @DCB_ATTR_CEE: CEE std supported attributes (NLA_NESTED)
357  */
358 enum dcbnl_attrs {
359 	DCB_ATTR_UNDEFINED,
360 
361 	DCB_ATTR_IFNAME,
362 	DCB_ATTR_STATE,
363 	DCB_ATTR_PFC_STATE,
364 	DCB_ATTR_PFC_CFG,
365 	DCB_ATTR_NUM_TC,
366 	DCB_ATTR_PG_CFG,
367 	DCB_ATTR_SET_ALL,
368 	DCB_ATTR_PERM_HWADDR,
369 	DCB_ATTR_CAP,
370 	DCB_ATTR_NUMTCS,
371 	DCB_ATTR_BCN,
372 	DCB_ATTR_APP,
373 
374 	/* IEEE std attributes */
375 	DCB_ATTR_IEEE,
376 
377 	DCB_ATTR_DCBX,
378 	DCB_ATTR_FEATCFG,
379 
380 	/* CEE nested attributes */
381 	DCB_ATTR_CEE,
382 
383 	__DCB_ATTR_ENUM_MAX,
384 	DCB_ATTR_MAX = __DCB_ATTR_ENUM_MAX - 1,
385 };
386 
387 /**
388  * enum ieee_attrs - IEEE 802.1Qaz get/set attributes
389  *
390  * @DCB_ATTR_IEEE_UNSPEC: unspecified
391  * @DCB_ATTR_IEEE_ETS: negotiated ETS configuration
392  * @DCB_ATTR_IEEE_PFC: negotiated PFC configuration
393  * @DCB_ATTR_IEEE_APP_TABLE: negotiated APP configuration
394  * @DCB_ATTR_IEEE_PEER_ETS: peer ETS configuration - get only
395  * @DCB_ATTR_IEEE_PEER_PFC: peer PFC configuration - get only
396  * @DCB_ATTR_IEEE_PEER_APP: peer APP tlv - get only
397  */
398 enum ieee_attrs {
399 	DCB_ATTR_IEEE_UNSPEC,
400 	DCB_ATTR_IEEE_ETS,
401 	DCB_ATTR_IEEE_PFC,
402 	DCB_ATTR_IEEE_APP_TABLE,
403 	DCB_ATTR_IEEE_PEER_ETS,
404 	DCB_ATTR_IEEE_PEER_PFC,
405 	DCB_ATTR_IEEE_PEER_APP,
406 	DCB_ATTR_IEEE_MAXRATE,
407 	DCB_ATTR_IEEE_QCN,
408 	DCB_ATTR_IEEE_QCN_STATS,
409 	__DCB_ATTR_IEEE_MAX
410 };
411 #define DCB_ATTR_IEEE_MAX (__DCB_ATTR_IEEE_MAX - 1)
412 
413 enum ieee_attrs_app {
414 	DCB_ATTR_IEEE_APP_UNSPEC,
415 	DCB_ATTR_IEEE_APP,
416 	__DCB_ATTR_IEEE_APP_MAX
417 };
418 #define DCB_ATTR_IEEE_APP_MAX (__DCB_ATTR_IEEE_APP_MAX - 1)
419 
420 /**
421  * enum cee_attrs - CEE DCBX get attributes.
422  *
423  * @DCB_ATTR_CEE_UNSPEC: unspecified
424  * @DCB_ATTR_CEE_PEER_PG: peer PG configuration - get only
425  * @DCB_ATTR_CEE_PEER_PFC: peer PFC configuration - get only
426  * @DCB_ATTR_CEE_PEER_APP_TABLE: peer APP tlv - get only
427  * @DCB_ATTR_CEE_TX_PG: TX PG configuration (DCB_CMD_PGTX_GCFG)
428  * @DCB_ATTR_CEE_RX_PG: RX PG configuration (DCB_CMD_PGRX_GCFG)
429  * @DCB_ATTR_CEE_PFC: PFC configuration (DCB_CMD_PFC_GCFG)
430  * @DCB_ATTR_CEE_APP_TABLE: APP configuration (multi DCB_CMD_GAPP)
431  * @DCB_ATTR_CEE_FEAT: DCBX features flags (DCB_CMD_GFEATCFG)
432  *
433  * An aggregated collection of the cee std negotiated parameters.
434  */
435 enum cee_attrs {
436 	DCB_ATTR_CEE_UNSPEC,
437 	DCB_ATTR_CEE_PEER_PG,
438 	DCB_ATTR_CEE_PEER_PFC,
439 	DCB_ATTR_CEE_PEER_APP_TABLE,
440 	DCB_ATTR_CEE_TX_PG,
441 	DCB_ATTR_CEE_RX_PG,
442 	DCB_ATTR_CEE_PFC,
443 	DCB_ATTR_CEE_APP_TABLE,
444 	DCB_ATTR_CEE_FEAT,
445 	__DCB_ATTR_CEE_MAX
446 };
447 #define DCB_ATTR_CEE_MAX (__DCB_ATTR_CEE_MAX - 1)
448 
449 enum peer_app_attr {
450 	DCB_ATTR_CEE_PEER_APP_UNSPEC,
451 	DCB_ATTR_CEE_PEER_APP_INFO,
452 	DCB_ATTR_CEE_PEER_APP,
453 	__DCB_ATTR_CEE_PEER_APP_MAX
454 };
455 #define DCB_ATTR_CEE_PEER_APP_MAX (__DCB_ATTR_CEE_PEER_APP_MAX - 1)
456 
457 enum cee_attrs_app {
458 	DCB_ATTR_CEE_APP_UNSPEC,
459 	DCB_ATTR_CEE_APP,
460 	__DCB_ATTR_CEE_APP_MAX
461 };
462 #define DCB_ATTR_CEE_APP_MAX (__DCB_ATTR_CEE_APP_MAX - 1)
463 
464 /**
465  * enum dcbnl_pfc_attrs - DCB Priority Flow Control user priority nested attrs
466  *
467  * @DCB_PFC_UP_ATTR_UNDEFINED: unspecified attribute to catch errors
468  * @DCB_PFC_UP_ATTR_0: Priority Flow Control value for User Priority 0 (NLA_U8)
469  * @DCB_PFC_UP_ATTR_1: Priority Flow Control value for User Priority 1 (NLA_U8)
470  * @DCB_PFC_UP_ATTR_2: Priority Flow Control value for User Priority 2 (NLA_U8)
471  * @DCB_PFC_UP_ATTR_3: Priority Flow Control value for User Priority 3 (NLA_U8)
472  * @DCB_PFC_UP_ATTR_4: Priority Flow Control value for User Priority 4 (NLA_U8)
473  * @DCB_PFC_UP_ATTR_5: Priority Flow Control value for User Priority 5 (NLA_U8)
474  * @DCB_PFC_UP_ATTR_6: Priority Flow Control value for User Priority 6 (NLA_U8)
475  * @DCB_PFC_UP_ATTR_7: Priority Flow Control value for User Priority 7 (NLA_U8)
476  * @DCB_PFC_UP_ATTR_MAX: highest attribute number currently defined
477  * @DCB_PFC_UP_ATTR_ALL: apply to all priority flow control attrs (NLA_FLAG)
478  *
479  */
480 enum dcbnl_pfc_up_attrs {
481 	DCB_PFC_UP_ATTR_UNDEFINED,
482 
483 	DCB_PFC_UP_ATTR_0,
484 	DCB_PFC_UP_ATTR_1,
485 	DCB_PFC_UP_ATTR_2,
486 	DCB_PFC_UP_ATTR_3,
487 	DCB_PFC_UP_ATTR_4,
488 	DCB_PFC_UP_ATTR_5,
489 	DCB_PFC_UP_ATTR_6,
490 	DCB_PFC_UP_ATTR_7,
491 	DCB_PFC_UP_ATTR_ALL,
492 
493 	__DCB_PFC_UP_ATTR_ENUM_MAX,
494 	DCB_PFC_UP_ATTR_MAX = __DCB_PFC_UP_ATTR_ENUM_MAX - 1,
495 };
496 
497 /**
498  * enum dcbnl_pg_attrs - DCB Priority Group attributes
499  *
500  * @DCB_PG_ATTR_UNDEFINED: unspecified attribute to catch errors
501  * @DCB_PG_ATTR_TC_0: Priority Group Traffic Class 0 configuration (NLA_NESTED)
502  * @DCB_PG_ATTR_TC_1: Priority Group Traffic Class 1 configuration (NLA_NESTED)
503  * @DCB_PG_ATTR_TC_2: Priority Group Traffic Class 2 configuration (NLA_NESTED)
504  * @DCB_PG_ATTR_TC_3: Priority Group Traffic Class 3 configuration (NLA_NESTED)
505  * @DCB_PG_ATTR_TC_4: Priority Group Traffic Class 4 configuration (NLA_NESTED)
506  * @DCB_PG_ATTR_TC_5: Priority Group Traffic Class 5 configuration (NLA_NESTED)
507  * @DCB_PG_ATTR_TC_6: Priority Group Traffic Class 6 configuration (NLA_NESTED)
508  * @DCB_PG_ATTR_TC_7: Priority Group Traffic Class 7 configuration (NLA_NESTED)
509  * @DCB_PG_ATTR_TC_MAX: highest attribute number currently defined
510  * @DCB_PG_ATTR_TC_ALL: apply to all traffic classes (NLA_NESTED)
511  * @DCB_PG_ATTR_BW_ID_0: Percent of link bandwidth for Priority Group 0 (NLA_U8)
512  * @DCB_PG_ATTR_BW_ID_1: Percent of link bandwidth for Priority Group 1 (NLA_U8)
513  * @DCB_PG_ATTR_BW_ID_2: Percent of link bandwidth for Priority Group 2 (NLA_U8)
514  * @DCB_PG_ATTR_BW_ID_3: Percent of link bandwidth for Priority Group 3 (NLA_U8)
515  * @DCB_PG_ATTR_BW_ID_4: Percent of link bandwidth for Priority Group 4 (NLA_U8)
516  * @DCB_PG_ATTR_BW_ID_5: Percent of link bandwidth for Priority Group 5 (NLA_U8)
517  * @DCB_PG_ATTR_BW_ID_6: Percent of link bandwidth for Priority Group 6 (NLA_U8)
518  * @DCB_PG_ATTR_BW_ID_7: Percent of link bandwidth for Priority Group 7 (NLA_U8)
519  * @DCB_PG_ATTR_BW_ID_MAX: highest attribute number currently defined
520  * @DCB_PG_ATTR_BW_ID_ALL: apply to all priority groups (NLA_FLAG)
521  *
522  */
523 enum dcbnl_pg_attrs {
524 	DCB_PG_ATTR_UNDEFINED,
525 
526 	DCB_PG_ATTR_TC_0,
527 	DCB_PG_ATTR_TC_1,
528 	DCB_PG_ATTR_TC_2,
529 	DCB_PG_ATTR_TC_3,
530 	DCB_PG_ATTR_TC_4,
531 	DCB_PG_ATTR_TC_5,
532 	DCB_PG_ATTR_TC_6,
533 	DCB_PG_ATTR_TC_7,
534 	DCB_PG_ATTR_TC_MAX,
535 	DCB_PG_ATTR_TC_ALL,
536 
537 	DCB_PG_ATTR_BW_ID_0,
538 	DCB_PG_ATTR_BW_ID_1,
539 	DCB_PG_ATTR_BW_ID_2,
540 	DCB_PG_ATTR_BW_ID_3,
541 	DCB_PG_ATTR_BW_ID_4,
542 	DCB_PG_ATTR_BW_ID_5,
543 	DCB_PG_ATTR_BW_ID_6,
544 	DCB_PG_ATTR_BW_ID_7,
545 	DCB_PG_ATTR_BW_ID_MAX,
546 	DCB_PG_ATTR_BW_ID_ALL,
547 
548 	__DCB_PG_ATTR_ENUM_MAX,
549 	DCB_PG_ATTR_MAX = __DCB_PG_ATTR_ENUM_MAX - 1,
550 };
551 
552 /**
553  * enum dcbnl_tc_attrs - DCB Traffic Class attributes
554  *
555  * @DCB_TC_ATTR_PARAM_UNDEFINED: unspecified attribute to catch errors
556  * @DCB_TC_ATTR_PARAM_PGID: (NLA_U8) Priority group the traffic class belongs to
557  *                          Valid values are:  0-7
558  * @DCB_TC_ATTR_PARAM_UP_MAPPING: (NLA_U8) Traffic class to user priority map
559  *                                Some devices may not support changing the
560  *                                user priority map of a TC.
561  * @DCB_TC_ATTR_PARAM_STRICT_PRIO: (NLA_U8) Strict priority setting
562  *                                 0 - none
563  *                                 1 - group strict
564  *                                 2 - link strict
565  * @DCB_TC_ATTR_PARAM_BW_PCT: optional - (NLA_U8) If supported by the device and
566  *                            not configured to use link strict priority,
567  *                            this is the percentage of bandwidth of the
568  *                            priority group this traffic class belongs to
569  * @DCB_TC_ATTR_PARAM_ALL: (NLA_FLAG) all traffic class parameters
570  *
571  */
572 enum dcbnl_tc_attrs {
573 	DCB_TC_ATTR_PARAM_UNDEFINED,
574 
575 	DCB_TC_ATTR_PARAM_PGID,
576 	DCB_TC_ATTR_PARAM_UP_MAPPING,
577 	DCB_TC_ATTR_PARAM_STRICT_PRIO,
578 	DCB_TC_ATTR_PARAM_BW_PCT,
579 	DCB_TC_ATTR_PARAM_ALL,
580 
581 	__DCB_TC_ATTR_PARAM_ENUM_MAX,
582 	DCB_TC_ATTR_PARAM_MAX = __DCB_TC_ATTR_PARAM_ENUM_MAX - 1,
583 };
584 
585 /**
586  * enum dcbnl_cap_attrs - DCB Capability attributes
587  *
588  * @DCB_CAP_ATTR_UNDEFINED: unspecified attribute to catch errors
589  * @DCB_CAP_ATTR_ALL: (NLA_FLAG) all capability parameters
590  * @DCB_CAP_ATTR_PG: (NLA_U8) device supports Priority Groups
591  * @DCB_CAP_ATTR_PFC: (NLA_U8) device supports Priority Flow Control
592  * @DCB_CAP_ATTR_UP2TC: (NLA_U8) device supports user priority to
593  *                               traffic class mapping
594  * @DCB_CAP_ATTR_PG_TCS: (NLA_U8) bitmap where each bit represents a
595  *                                number of traffic classes the device
596  *                                can be configured to use for Priority Groups
597  * @DCB_CAP_ATTR_PFC_TCS: (NLA_U8) bitmap where each bit represents a
598  *                                 number of traffic classes the device can be
599  *                                 configured to use for Priority Flow Control
600  * @DCB_CAP_ATTR_GSP: (NLA_U8) device supports group strict priority
601  * @DCB_CAP_ATTR_BCN: (NLA_U8) device supports Backwards Congestion
602  *                             Notification
603  * @DCB_CAP_ATTR_DCBX: (NLA_U8) device supports DCBX engine
604  *
605  */
606 enum dcbnl_cap_attrs {
607 	DCB_CAP_ATTR_UNDEFINED,
608 	DCB_CAP_ATTR_ALL,
609 	DCB_CAP_ATTR_PG,
610 	DCB_CAP_ATTR_PFC,
611 	DCB_CAP_ATTR_UP2TC,
612 	DCB_CAP_ATTR_PG_TCS,
613 	DCB_CAP_ATTR_PFC_TCS,
614 	DCB_CAP_ATTR_GSP,
615 	DCB_CAP_ATTR_BCN,
616 	DCB_CAP_ATTR_DCBX,
617 
618 	__DCB_CAP_ATTR_ENUM_MAX,
619 	DCB_CAP_ATTR_MAX = __DCB_CAP_ATTR_ENUM_MAX - 1,
620 };
621 
622 /**
623  * DCBX capability flags
624  *
625  * @DCB_CAP_DCBX_HOST: DCBX negotiation is performed by the host LLDP agent.
626  *                     'set' routines are used to configure the device with
627  *                     the negotiated parameters
628  *
629  * @DCB_CAP_DCBX_LLD_MANAGED: DCBX negotiation is not performed in the host but
630  *                            by another entity
631  *                            'get' routines are used to retrieve the
632  *                            negotiated parameters
633  *                            'set' routines can be used to set the initial
634  *                            negotiation configuration
635  *
636  * @DCB_CAP_DCBX_VER_CEE: for a non-host DCBX engine, indicates the engine
637  *                        supports the CEE protocol flavor
638  *
639  * @DCB_CAP_DCBX_VER_IEEE: for a non-host DCBX engine, indicates the engine
640  *                         supports the IEEE protocol flavor
641  *
642  * @DCB_CAP_DCBX_STATIC: for a non-host DCBX engine, indicates the engine
643  *                       supports static configuration (i.e no actual
644  *                       negotiation is performed negotiated parameters equal
645  *                       the initial configuration)
646  *
647  */
648 #define DCB_CAP_DCBX_HOST		0x01
649 #define DCB_CAP_DCBX_LLD_MANAGED	0x02
650 #define DCB_CAP_DCBX_VER_CEE		0x04
651 #define DCB_CAP_DCBX_VER_IEEE		0x08
652 #define DCB_CAP_DCBX_STATIC		0x10
653 
654 /**
655  * enum dcbnl_numtcs_attrs - number of traffic classes
656  *
657  * @DCB_NUMTCS_ATTR_UNDEFINED: unspecified attribute to catch errors
658  * @DCB_NUMTCS_ATTR_ALL: (NLA_FLAG) all traffic class attributes
659  * @DCB_NUMTCS_ATTR_PG: (NLA_U8) number of traffic classes used for
660  *                               priority groups
661  * @DCB_NUMTCS_ATTR_PFC: (NLA_U8) number of traffic classes which can
662  *                                support priority flow control
663  */
664 enum dcbnl_numtcs_attrs {
665 	DCB_NUMTCS_ATTR_UNDEFINED,
666 	DCB_NUMTCS_ATTR_ALL,
667 	DCB_NUMTCS_ATTR_PG,
668 	DCB_NUMTCS_ATTR_PFC,
669 
670 	__DCB_NUMTCS_ATTR_ENUM_MAX,
671 	DCB_NUMTCS_ATTR_MAX = __DCB_NUMTCS_ATTR_ENUM_MAX - 1,
672 };
673 
674 enum dcbnl_bcn_attrs{
675 	DCB_BCN_ATTR_UNDEFINED = 0,
676 
677 	DCB_BCN_ATTR_RP_0,
678 	DCB_BCN_ATTR_RP_1,
679 	DCB_BCN_ATTR_RP_2,
680 	DCB_BCN_ATTR_RP_3,
681 	DCB_BCN_ATTR_RP_4,
682 	DCB_BCN_ATTR_RP_5,
683 	DCB_BCN_ATTR_RP_6,
684 	DCB_BCN_ATTR_RP_7,
685 	DCB_BCN_ATTR_RP_ALL,
686 
687 	DCB_BCN_ATTR_BCNA_0,
688 	DCB_BCN_ATTR_BCNA_1,
689 	DCB_BCN_ATTR_ALPHA,
690 	DCB_BCN_ATTR_BETA,
691 	DCB_BCN_ATTR_GD,
692 	DCB_BCN_ATTR_GI,
693 	DCB_BCN_ATTR_TMAX,
694 	DCB_BCN_ATTR_TD,
695 	DCB_BCN_ATTR_RMIN,
696 	DCB_BCN_ATTR_W,
697 	DCB_BCN_ATTR_RD,
698 	DCB_BCN_ATTR_RU,
699 	DCB_BCN_ATTR_WRTT,
700 	DCB_BCN_ATTR_RI,
701 	DCB_BCN_ATTR_C,
702 	DCB_BCN_ATTR_ALL,
703 
704 	__DCB_BCN_ATTR_ENUM_MAX,
705 	DCB_BCN_ATTR_MAX = __DCB_BCN_ATTR_ENUM_MAX - 1,
706 };
707 
708 /**
709  * enum dcb_general_attr_values - general DCB attribute values
710  *
711  * @DCB_ATTR_UNDEFINED: value used to indicate an attribute is not supported
712  *
713  */
714 enum dcb_general_attr_values {
715 	DCB_ATTR_VALUE_UNDEFINED = 0xff
716 };
717 
718 #define DCB_APP_IDTYPE_ETHTYPE	0x00
719 #define DCB_APP_IDTYPE_PORTNUM	0x01
720 enum dcbnl_app_attrs {
721 	DCB_APP_ATTR_UNDEFINED,
722 
723 	DCB_APP_ATTR_IDTYPE,
724 	DCB_APP_ATTR_ID,
725 	DCB_APP_ATTR_PRIORITY,
726 
727 	__DCB_APP_ATTR_ENUM_MAX,
728 	DCB_APP_ATTR_MAX = __DCB_APP_ATTR_ENUM_MAX - 1,
729 };
730 
731 /**
732  * enum dcbnl_featcfg_attrs - features conifiguration flags
733  *
734  * @DCB_FEATCFG_ATTR_UNDEFINED: unspecified attribute to catch errors
735  * @DCB_FEATCFG_ATTR_ALL: (NLA_FLAG) all features configuration attributes
736  * @DCB_FEATCFG_ATTR_PG: (NLA_U8) configuration flags for priority groups
737  * @DCB_FEATCFG_ATTR_PFC: (NLA_U8) configuration flags for priority
738  *                                 flow control
739  * @DCB_FEATCFG_ATTR_APP: (NLA_U8) configuration flags for application TLV
740  *
741  */
742 #define DCB_FEATCFG_ERROR	0x01	/* error in feature resolution */
743 #define DCB_FEATCFG_ENABLE	0x02	/* enable feature */
744 #define DCB_FEATCFG_WILLING	0x04	/* feature is willing */
745 #define DCB_FEATCFG_ADVERTISE	0x08	/* advertise feature */
746 enum dcbnl_featcfg_attrs {
747 	DCB_FEATCFG_ATTR_UNDEFINED,
748 	DCB_FEATCFG_ATTR_ALL,
749 	DCB_FEATCFG_ATTR_PG,
750 	DCB_FEATCFG_ATTR_PFC,
751 	DCB_FEATCFG_ATTR_APP,
752 
753 	__DCB_FEATCFG_ATTR_ENUM_MAX,
754 	DCB_FEATCFG_ATTR_MAX = __DCB_FEATCFG_ATTR_ENUM_MAX - 1,
755 };
756 
757 #endif /* __LINUX_DCBNL_H__ */
758