linux/net/sctp/stream_sched_prio.c

// SPDX-License-Identifier: GPL-2.0-or-later
/* SCTP kernel implementation
 * (C) Copyright Red Hat Inc. 2017
 *
 * This file is part of the SCTP kernel implementation
 *
 * These functions manipulate sctp stream queue/scheduling.
 *
 * Please send any bug reports or fixes you make to the
 * email addresched(es):
 *    lksctp developers <[email protected]>
 *
 * Written or modified by:
 *    Marcelo Ricardo Leitner <[email protected]>
 */

#include <linux/list.h>
#include <net/sctp/sctp.h>
#include <net/sctp/sm.h>
#include <net/sctp/stream_sched.h>

/* Priority handling
 * RFC DRAFT ndata section 3.4
 */

static void sctp_sched_prio_unsched_all(struct sctp_stream *stream);

static struct sctp_stream_priorities *sctp_sched_prio_head_get(struct sctp_stream_priorities *p)
{ … }

static void sctp_sched_prio_head_put(struct sctp_stream_priorities *p)
{ … }

static struct sctp_stream_priorities *sctp_sched_prio_new_head(
			struct sctp_stream *stream, int prio, gfp_t gfp)
{ … }

static struct sctp_stream_priorities *sctp_sched_prio_get_head(
			struct sctp_stream *stream, int prio, gfp_t gfp)
{ … }

static void sctp_sched_prio_next_stream(struct sctp_stream_priorities *p)
{ … }

static bool sctp_sched_prio_unsched(struct sctp_stream_out_ext *soute)
{ … }

static void sctp_sched_prio_sched(struct sctp_stream *stream,
				  struct sctp_stream_out_ext *soute)
{ … }

static int sctp_sched_prio_set(struct sctp_stream *stream, __u16 sid,
			       __u16 prio, gfp_t gfp)
{ … }

static int sctp_sched_prio_get(struct sctp_stream *stream, __u16 sid,
			       __u16 *value)
{ … }

static int sctp_sched_prio_init(struct sctp_stream *stream)
{ … }

static int sctp_sched_prio_init_sid(struct sctp_stream *stream, __u16 sid,
				    gfp_t gfp)
{ … }

static void sctp_sched_prio_free_sid(struct sctp_stream *stream, __u16 sid)
{ … }

static void sctp_sched_prio_enqueue(struct sctp_outq *q,
				    struct sctp_datamsg *msg)
{ … }

static struct sctp_chunk *sctp_sched_prio_dequeue(struct sctp_outq *q)
{ … }

static void sctp_sched_prio_dequeue_done(struct sctp_outq *q,
					 struct sctp_chunk *ch)
{ … }

static void sctp_sched_prio_sched_all(struct sctp_stream *stream)
{ … }

static void sctp_sched_prio_unsched_all(struct sctp_stream *stream)
{ … }

static struct sctp_sched_ops sctp_sched_prio = …;

void sctp_sched_ops_prio_init(void)
{ … }