linux/net/sched/sch_drr.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * net/sched/sch_drr.c         Deficit Round Robin scheduler
 *
 * Copyright (c) 2008 Patrick McHardy <[email protected]>
 */

#include <linux/module.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/netdevice.h>
#include <linux/pkt_sched.h>
#include <net/sch_generic.h>
#include <net/pkt_sched.h>
#include <net/pkt_cls.h>

struct drr_class { … };

struct drr_sched { … };

static struct drr_class *drr_find_class(struct Qdisc *sch, u32 classid)
{ … }

static const struct nla_policy drr_policy[TCA_DRR_MAX + 1] = …;

static int drr_change_class(struct Qdisc *sch, u32 classid, u32 parentid,
			    struct nlattr **tca, unsigned long *arg,
			    struct netlink_ext_ack *extack)
{ … }

static void drr_destroy_class(struct Qdisc *sch, struct drr_class *cl)
{ … }

static int drr_delete_class(struct Qdisc *sch, unsigned long arg,
			    struct netlink_ext_ack *extack)
{ … }

static unsigned long drr_search_class(struct Qdisc *sch, u32 classid)
{ … }

static struct tcf_block *drr_tcf_block(struct Qdisc *sch, unsigned long cl,
				       struct netlink_ext_ack *extack)
{ … }

static unsigned long drr_bind_tcf(struct Qdisc *sch, unsigned long parent,
				  u32 classid)
{ … }

static void drr_unbind_tcf(struct Qdisc *sch, unsigned long arg)
{ … }

static int drr_graft_class(struct Qdisc *sch, unsigned long arg,
			   struct Qdisc *new, struct Qdisc **old,
			   struct netlink_ext_ack *extack)
{ … }

static struct Qdisc *drr_class_leaf(struct Qdisc *sch, unsigned long arg)
{ … }

static void drr_qlen_notify(struct Qdisc *csh, unsigned long arg)
{ … }

static int drr_dump_class(struct Qdisc *sch, unsigned long arg,
			  struct sk_buff *skb, struct tcmsg *tcm)
{ … }

static int drr_dump_class_stats(struct Qdisc *sch, unsigned long arg,
				struct gnet_dump *d)
{ … }

static void drr_walk(struct Qdisc *sch, struct qdisc_walker *arg)
{ … }

static struct drr_class *drr_classify(struct sk_buff *skb, struct Qdisc *sch,
				      int *qerr)
{ … }

static int drr_enqueue(struct sk_buff *skb, struct Qdisc *sch,
		       struct sk_buff **to_free)
{ … }

static struct sk_buff *drr_dequeue(struct Qdisc *sch)
{ … }

static int drr_init_qdisc(struct Qdisc *sch, struct nlattr *opt,
			  struct netlink_ext_ack *extack)
{ … }

static void drr_reset_qdisc(struct Qdisc *sch)
{ … }

static void drr_destroy_qdisc(struct Qdisc *sch)
{ … }

static const struct Qdisc_class_ops drr_class_ops = …;

static struct Qdisc_ops drr_qdisc_ops __read_mostly = …;
MODULE_ALIAS_NET_SCH(…) …;

static int __init drr_init(void)
{ … }

static void __exit drr_exit(void)
{ … }

module_init(…) …;
module_exit(drr_exit);
MODULE_LICENSE(…) …;
MODULE_DESCRIPTION(…) …;