Commit 0348451d authored by Vlad Buslov's avatar Vlad Buslov Committed by David S. Miller
Browse files

net: sched: cls_flower: implement terse dump support 



Implement tcf_proto_ops->terse_dump() callback for flower classifier. Only
dump handle, flags and action data in terse mode.

Signed-off-by: default avatarVlad Buslov <vladbu@mellanox.com>
Reviewed-by: default avatarJiri Pirko <jiri@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ca44b738

net/sched/cls_flower.c

+43 −0
Original line number Diff line number Diff line
@@ -2768,6 +2768,48 @@ nla_put_failure: 
	return -1;

}



static int fl_terse_dump(struct net *net, struct tcf_proto *tp, void *fh,

			 struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)

{

	struct cls_fl_filter *f = fh;

	struct nlattr *nest;

	bool skip_hw;



	if (!f)

		return skb->len;



	t->tcm_handle = f->handle;



	nest = nla_nest_start_noflag(skb, TCA_OPTIONS);

	if (!nest)

		goto nla_put_failure;



	spin_lock(&tp->lock);



	skip_hw = tc_skip_hw(f->flags);



	if (f->flags && nla_put_u32(skb, TCA_FLOWER_FLAGS, f->flags))

		goto nla_put_failure_locked;



	spin_unlock(&tp->lock);



	if (!skip_hw)

		fl_hw_update_stats(tp, f, rtnl_held);



	if (tcf_exts_terse_dump(skb, &f->exts))

		goto nla_put_failure;



	nla_nest_end(skb, nest);



	return skb->len;



nla_put_failure_locked:

	spin_unlock(&tp->lock);

nla_put_failure:

	nla_nest_cancel(skb, nest);

	return -1;

}



static int fl_tmplt_dump(struct sk_buff *skb, struct net *net, void *tmplt_priv)

{

	struct fl_flow_tmplt *tmplt = tmplt_priv;
@@ -2832,6 +2874,7 @@ static struct tcf_proto_ops cls_fl_ops __read_mostly = { 
	.hw_add		= fl_hw_add,

	.hw_del		= fl_hw_del,

	.dump		= fl_dump,

	.terse_dump	= fl_terse_dump,

	.bind_class	= fl_bind_class,

	.tmplt_create	= fl_tmplt_create,

	.tmplt_destroy	= fl_tmplt_destroy,

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