Release 4.8 net/sched/sch_ingress.c

Directory: net/sched
/* net/sched/sch_ingress.c - Ingress and clsact qdisc
 *
 *              This program is free software; you can redistribute it and/or
 *              modify it under the terms of the GNU General Public License
 *              as published by the Free Software Foundation; either version
 *              2 of the License, or (at your option) any later version.
 *
 * Authors:     Jamal Hadi Salim 1999
 */

#include <linux/module.h>
#include <linux/types.h>
#include <linux/list.h>
#include <linux/skbuff.h>
#include <linux/rtnetlink.h>

#include <net/netlink.h>
#include <net/pkt_sched.h>



static struct Qdisc *ingress_leaf(struct Qdisc *sch, unsigned long arg)
{
	return NULL;
}

Contributors
Person Tokens Prop Commits CommitProp
pre-git pre-git 20 100.00% 1 100.00%
Total 20 100.00% 1 100.00%



static unsigned long ingress_get(struct Qdisc *sch, u32 classid)
{
	return TC_H_MIN(classid) + 1;
}

Contributors
Person Tokens Prop Commits CommitProp
pre-git pre-git 23 100.00% 1 100.00%
Total 23 100.00% 1 100.00%



static bool ingress_cl_offload(u32 classid)
{
	return true;
}

Contributors
Person Tokens Prop Commits CommitProp
daniel borkmann daniel borkmann 12 100.00% 1 100.00%
Total 12 100.00% 1 100.00%



static unsigned long ingress_bind_filter(struct Qdisc *sch,
					 unsigned long parent, u32 classid)
{
	return ingress_get(sch, classid);
}

Contributors
Person Tokens Prop Commits CommitProp
pre-git pre-git 27 100.00% 1 100.00%
Total 27 100.00% 1 100.00%



static void ingress_put(struct Qdisc *sch, unsigned long cl)
{
}

Contributors
Person Tokens Prop Commits CommitProp
pre-git pre-git 14 100.00% 1 100.00%
Total 14 100.00% 1 100.00%



static void ingress_walk(struct Qdisc *sch, struct qdisc_walker *walker)
{
}

Contributors
Person Tokens Prop Commits CommitProp
pre-git pre-git 14 93.33% 1 50.00%
joe perches joe perches 1 6.67% 1 50.00%
Total 15 100.00% 2 100.00%



static struct tcf_proto __rcu **ingress_find_tcf(struct Qdisc *sch,
						 unsigned long cl)
{
	struct net_device *dev = qdisc_dev(sch);

	return &dev->ingress_cl_list;
}

Contributors
Person Tokens Prop Commits CommitProp
pre-git pre-git 28 80.00% 1 25.00%
daniel borkmann daniel borkmann 5 14.29% 1 25.00%
jamal hadi salim jamal hadi salim 1 2.86% 1 25.00%
john fastabend john fastabend 1 2.86% 1 25.00%
Total 35 100.00% 4 100.00%



static int ingress_init(struct Qdisc *sch, struct nlattr *opt)
{
	net_inc_ingress_queue();
	sch->flags |= TCQ_F_CPUSTATS;

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
daniel borkmann daniel borkmann 22 78.57% 1 50.00%
alexei starovoitov alexei starovoitov 6 21.43% 1 50.00%
Total 28 100.00% 2 100.00%



static void ingress_destroy(struct Qdisc *sch)
{
	struct net_device *dev = qdisc_dev(sch);

	tcf_destroy_chain(&dev->ingress_cl_list);
	net_dec_ingress_queue();
}

Contributors
Person Tokens Prop Commits CommitProp
pre-git pre-git 21 65.62% 1 20.00%
daniel borkmann daniel borkmann 8 25.00% 2 40.00%
patrick mchardy patrick mchardy 3 9.38% 2 40.00%
Total 32 100.00% 5 100.00%



static int ingress_dump(struct Qdisc *sch, struct sk_buff *skb)
{
	struct nlattr *nest;

	nest = nla_nest_start(skb, TCA_OPTIONS);
	if (nest == NULL)
		goto nla_put_failure;

	return nla_nest_end(skb, nest);

nla_put_failure:
	nla_nest_cancel(skb, nest);
	return -1;
}

Contributors
Person Tokens Prop Commits CommitProp
pre-git pre-git 38 63.33% 1 20.00%
patrick mchardy patrick mchardy 19 31.67% 2 40.00%
arnaldo carvalho de melo arnaldo carvalho de melo 2 3.33% 1 20.00%
yang yingliang yang yingliang 1 1.67% 1 20.00%
Total 60 100.00% 5 100.00%


static const struct Qdisc_class_ops ingress_class_ops = {
	.leaf		=	ingress_leaf,
	.get		=	ingress_get,
	.put		=	ingress_put,
	.walk		=	ingress_walk,
	.tcf_chain	=	ingress_find_tcf,
	.tcf_cl_offload	=	ingress_cl_offload,
	.bind_tcf	=	ingress_bind_filter,
	.unbind_tcf	=	ingress_put,
};


static struct Qdisc_ops ingress_qdisc_ops __read_mostly = {
	.cl_ops		=	&ingress_class_ops,
	.id		=	"ingress",
	.init		=	ingress_init,
	.destroy	=	ingress_destroy,
	.dump		=	ingress_dump,
	.owner		=	THIS_MODULE,
};



static unsigned long clsact_get(struct Qdisc *sch, u32 classid)
{
	switch (TC_H_MIN(classid)) {
	case TC_H_MIN(TC_H_MIN_INGRESS):
	case TC_H_MIN(TC_H_MIN_EGRESS):
		return TC_H_MIN(classid);
	default:
		return 0;
	}
}

Contributors
Person Tokens Prop Commits CommitProp
daniel borkmann daniel borkmann 46 100.00% 1 100.00%
Total 46 100.00% 1 100.00%



static bool clsact_cl_offload(u32 classid)
{
	return TC_H_MIN(classid) == TC_H_MIN(TC_H_MIN_INGRESS);
}

Contributors
Person Tokens Prop Commits CommitProp
daniel borkmann daniel borkmann 20 100.00% 1 100.00%
Total 20 100.00% 1 100.00%



static unsigned long clsact_bind_filter(struct Qdisc *sch,
					unsigned long parent, u32 classid)
{
	return clsact_get(sch, classid);
}

Contributors
Person Tokens Prop Commits CommitProp
daniel borkmann daniel borkmann 27 100.00% 1 100.00%
Total 27 100.00% 1 100.00%



static struct tcf_proto __rcu **clsact_find_tcf(struct Qdisc *sch,
						unsigned long cl)
{
	struct net_device *dev = qdisc_dev(sch);

	switch (cl) {
	case TC_H_MIN(TC_H_MIN_INGRESS):
		return &dev->ingress_cl_list;
	case TC_H_MIN(TC_H_MIN_EGRESS):
		return &dev->egress_cl_list;
	default:
		return NULL;
	}
}

Contributors
Person Tokens Prop Commits CommitProp
daniel borkmann daniel borkmann 63 100.00% 1 100.00%
Total 63 100.00% 1 100.00%



static int clsact_init(struct Qdisc *sch, struct nlattr *opt)
{
	net_inc_ingress_queue();
	net_inc_egress_queue();

	sch->flags |= TCQ_F_CPUSTATS;

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
daniel borkmann daniel borkmann 31 100.00% 1 100.00%
Total 31 100.00% 1 100.00%



static void clsact_destroy(struct Qdisc *sch)
{
	struct net_device *dev = qdisc_dev(sch);

	tcf_destroy_chain(&dev->ingress_cl_list);
	tcf_destroy_chain(&dev->egress_cl_list);

	net_dec_ingress_queue();
	net_dec_egress_queue();
}

Contributors
Person Tokens Prop Commits CommitProp
daniel borkmann daniel borkmann 43 100.00% 1 100.00%
Total 43 100.00% 1 100.00%


static const struct Qdisc_class_ops clsact_class_ops = {
	.leaf		=	ingress_leaf,
	.get		=	clsact_get,
	.put		=	ingress_put,
	.walk		=	ingress_walk,
	.tcf_chain	=	clsact_find_tcf,
	.tcf_cl_offload	=	clsact_cl_offload,
	.bind_tcf	=	clsact_bind_filter,
	.unbind_tcf	=	ingress_put,
};


static struct Qdisc_ops clsact_qdisc_ops __read_mostly = {
	.cl_ops		=	&clsact_class_ops,
	.id		=	"clsact",
	.init		=	clsact_init,
	.destroy	=	clsact_destroy,
	.dump		=	ingress_dump,
	.owner		=	THIS_MODULE,
};



static int __init ingress_module_init(void)
{
	int ret;

	ret = register_qdisc(&ingress_qdisc_ops);
	if (!ret) {
		ret = register_qdisc(&clsact_qdisc_ops);
		if (ret)
			unregister_qdisc(&ingress_qdisc_ops);
	}

	return ret;
}

Contributors
Person Tokens Prop Commits CommitProp
daniel borkmann daniel borkmann 33 68.75% 1 33.33%
pre-git pre-git 12 25.00% 1 33.33%
al viro al viro 3 6.25% 1 33.33%
Total 48 100.00% 3 100.00%



static void __exit ingress_module_exit(void)
{
	unregister_qdisc(&ingress_qdisc_ops);
	unregister_qdisc(&clsact_qdisc_ops);
}

Contributors
Person Tokens Prop Commits CommitProp
pre-git pre-git 10 47.62% 1 25.00%
daniel borkmann daniel borkmann 6 28.57% 1 25.00%
al viro al viro 3 14.29% 1 25.00%
alexey kuznetsov alexey kuznetsov 2 9.52% 1 25.00%
Total 21 100.00% 4 100.00%


module_init(ingress_module_init);

module_exit(ingress_module_exit);

MODULE_ALIAS("sch_clsact");
MODULE_LICENSE("GPL");
Overall Contributors
Person Tokens Prop Commits CommitProp
daniel borkmann daniel borkmann 423 54.16% 4 16.67%
pre-git pre-git 256 32.78% 1 4.17%
dave jones dave jones 35 4.48% 1 4.17%
patrick mchardy patrick mchardy 24 3.07% 5 20.83%
al viro al viro 13 1.66% 1 4.17%
alexei starovoitov alexei starovoitov 6 0.77% 1 4.17%
linus torvalds linus torvalds 5 0.64% 1 4.17%
david s. miller david s. miller 5 0.64% 1 4.17%
arnaldo carvalho de melo arnaldo carvalho de melo 5 0.64% 2 8.33%
alexey kuznetsov alexey kuznetsov 2 0.26% 1 4.17%
eric dumazet eric dumazet 2 0.26% 1 4.17%
john fastabend john fastabend 1 0.13% 1 4.17%
joe perches joe perches 1 0.13% 1 4.17%
jamal hadi salim jamal hadi salim 1 0.13% 1 4.17%
yang yingliang yang yingliang 1 0.13% 1 4.17%
geert uytterhoeven geert uytterhoeven 1 0.13% 1 4.17%
Total 781 100.00% 24 100.00%
  Directory: net/sched

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	Total	20	100.00%	1	100.00%
cregit-Linux how code gets into the kernel

Release 4.8 net/sched/sch_ingress.c

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