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net: sched: use extended variants of block_get/put in ingress and clsact qdiscs 

Use previously introduced extended variants of block get and put
functions. This allows to specify a binder types specific to clsact
ingress/egress which is useful for drivers to distinguish who actually
got the block.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Jiri Pirko 2017-10-19 15:50:30 +02:00 committed by David S. Miller
parent 8c4083b30e
commit 6e40cf2d4d
2 changed files with 31 additions and 7 deletions
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2
include/net/pkt_cls.h
View File

@ -19,6 +19,8 @@ int unregister_tcf_proto_ops(struct tcf_proto_ops *ops);
enum tcf_block_binder_type {
TCF_BLOCK_BINDER_TYPE_UNSPEC,
TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS,
TCF_BLOCK_BINDER_TYPE_CLSACT_EGRESS,
};
struct tcf_block_ext_info {

36
net/sched/sch_ingress.c
View File

@ -20,6 +20,7 @@
struct ingress_sched_data {
struct tcf_block *block;
struct tcf_block_ext_info block_info;
};
static struct Qdisc *ingress_leaf(struct Qdisc *sch, unsigned long arg)
@ -59,7 +60,10 @@ static int ingress_init(struct Qdisc *sch, struct nlattr *opt)
struct net_device *dev = qdisc_dev(sch);
int err;
err = tcf_block_get(&q->block, &dev->ingress_cl_list, sch);
q->block_info.binder_type = TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS;
err = tcf_block_get_ext(&q->block, &dev->ingress_cl_list,
sch, &q->block_info);
if (err)
return err;
@ -72,8 +76,10 @@ static int ingress_init(struct Qdisc *sch, struct nlattr *opt)
static void ingress_destroy(struct Qdisc *sch)
{
struct ingress_sched_data *q = qdisc_priv(sch);
struct net_device *dev = qdisc_dev(sch);
tcf_block_put(q->block);
tcf_block_put_ext(q->block, &dev->ingress_cl_list,
sch, &q->block_info);
net_dec_ingress_queue();
}
@ -114,6 +120,8 @@ static struct Qdisc_ops ingress_qdisc_ops __read_mostly = {
struct clsact_sched_data {
struct tcf_block *ingress_block;
struct tcf_block *egress_block;
struct tcf_block_ext_info ingress_block_info;
struct tcf_block_ext_info egress_block_info;
};
static unsigned long clsact_find(struct Qdisc *sch, u32 classid)
@ -153,13 +161,19 @@ static int clsact_init(struct Qdisc *sch, struct nlattr *opt)
struct net_device *dev = qdisc_dev(sch);
int err;
err = tcf_block_get(&q->ingress_block, &dev->ingress_cl_list, sch);
q->ingress_block_info.binder_type = TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS;
err = tcf_block_get_ext(&q->ingress_block, &dev->ingress_cl_list,
sch, &q->ingress_block_info);
if (err)
return err;
err = tcf_block_get(&q->egress_block, &dev->egress_cl_list, sch);
q->egress_block_info.binder_type = TCF_BLOCK_BINDER_TYPE_CLSACT_EGRESS;
err = tcf_block_get_ext(&q->egress_block, &dev->egress_cl_list,
sch, &q->egress_block_info);
if (err)
return err;
goto err_egress_block_get;
net_inc_ingress_queue();
net_inc_egress_queue();
@ -167,14 +181,22 @@ static int clsact_init(struct Qdisc *sch, struct nlattr *opt)
sch->flags |= TCQ_F_CPUSTATS;
return 0;
err_egress_block_get:
tcf_block_put_ext(q->ingress_block, &dev->ingress_cl_list,
sch, &q->ingress_block_info);
return err;
}
static void clsact_destroy(struct Qdisc *sch)
{
struct clsact_sched_data *q = qdisc_priv(sch);
struct net_device *dev = qdisc_dev(sch);
tcf_block_put(q->egress_block);
tcf_block_put(q->ingress_block);
tcf_block_put_ext(q->egress_block, &dev->egress_cl_list,
sch, &q->egress_block_info);
tcf_block_put_ext(q->ingress_block, &dev->ingress_cl_list,
sch, &q->ingress_block_info);
net_dec_ingress_queue();
net_dec_egress_queue();