Commit | Line | Data |
---|---|---|
47505b8b | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
5bbbbe32 MRL |
2 | /* SCTP kernel implementation |
3 | * (C) Copyright Red Hat Inc. 2017 | |
4 | * | |
5 | * These are definitions used by the stream schedulers, defined in RFC | |
6 | * draft ndata (https://tools.ietf.org/html/draft-ietf-tsvwg-sctp-ndata-11) | |
7 | * | |
5bbbbe32 MRL |
8 | * Please send any bug reports or fixes you make to the |
9 | * email addresses: | |
10 | * lksctp developers <linux-sctp@vger.kernel.org> | |
11 | * | |
12 | * Written or modified by: | |
13 | * Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> | |
14 | */ | |
15 | ||
16 | #ifndef __sctp_stream_sched_h__ | |
17 | #define __sctp_stream_sched_h__ | |
18 | ||
19 | struct sctp_sched_ops { | |
20 | /* Property handling for a given stream */ | |
21 | int (*set)(struct sctp_stream *stream, __u16 sid, __u16 value, | |
22 | gfp_t gfp); | |
23 | int (*get)(struct sctp_stream *stream, __u16 sid, __u16 *value); | |
24 | ||
25 | /* Init the specific scheduler */ | |
26 | int (*init)(struct sctp_stream *stream); | |
27 | /* Init a stream */ | |
28 | int (*init_sid)(struct sctp_stream *stream, __u16 sid, gfp_t gfp); | |
29 | /* Frees the entire thing */ | |
30 | void (*free)(struct sctp_stream *stream); | |
31 | ||
32 | /* Enqueue a chunk */ | |
33 | void (*enqueue)(struct sctp_outq *q, struct sctp_datamsg *msg); | |
34 | /* Dequeue a chunk */ | |
35 | struct sctp_chunk *(*dequeue)(struct sctp_outq *q); | |
36 | /* Called only if the chunk fit the packet */ | |
37 | void (*dequeue_done)(struct sctp_outq *q, struct sctp_chunk *chunk); | |
38 | /* Sched all chunks already enqueued */ | |
39 | void (*sched_all)(struct sctp_stream *steam); | |
40 | /* Unched all chunks already enqueued */ | |
41 | void (*unsched_all)(struct sctp_stream *steam); | |
42 | }; | |
43 | ||
44 | int sctp_sched_set_sched(struct sctp_association *asoc, | |
45 | enum sctp_sched_type sched); | |
46 | int sctp_sched_get_sched(struct sctp_association *asoc); | |
47 | int sctp_sched_set_value(struct sctp_association *asoc, __u16 sid, | |
48 | __u16 value, gfp_t gfp); | |
49 | int sctp_sched_get_value(struct sctp_association *asoc, __u16 sid, | |
50 | __u16 *value); | |
51 | void sctp_sched_dequeue_done(struct sctp_outq *q, struct sctp_chunk *ch); | |
52 | ||
53 | void sctp_sched_dequeue_common(struct sctp_outq *q, struct sctp_chunk *ch); | |
54 | int sctp_sched_init_sid(struct sctp_stream *stream, __u16 sid, gfp_t gfp); | |
55 | struct sctp_sched_ops *sctp_sched_ops_from_stream(struct sctp_stream *stream); | |
56 | ||
1ba896f6 XL |
57 | void sctp_sched_ops_register(enum sctp_sched_type sched, |
58 | struct sctp_sched_ops *sched_ops); | |
59 | void sctp_sched_ops_prio_init(void); | |
60 | void sctp_sched_ops_rr_init(void); | |
61 | ||
5bbbbe32 | 62 | #endif /* __sctp_stream_sched_h__ */ |