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net: sched: extract common action counters update code into function 

Currently, all implementations of tc_action_ops->stats_update() callback
have almost exactly the same implementation of counters update
code (besides gact which also updates drop counter). In order to simplify
support for using both percpu-allocated and regular action counters
depending on run-time flag in following patches, extract action counters
update code into standalone function in act API.

This commit doesn't change functionality.

Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vlad Buslov 2019-10-30 16:09:00 +02:00 committed by David S. Miller
parent 21d8bd123a
commit c8ecebd04c
7 changed files with 21 additions and 26 deletions
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2
include/net/act_api.h
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@ -186,6 +186,8 @@ int tcf_action_dump(struct sk_buff *skb, struct tc_action *actions[], int bind,
int ref);
int tcf_action_dump_old(struct sk_buff *skb, struct tc_action *a, int, int);
int tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int, int);
void tcf_action_update_stats(struct tc_action *a, u64 bytes, u32 packets,
bool drop, bool hw);
int tcf_action_copy_stats(struct sk_buff *, struct tc_action *, int);
int tcf_action_check_ctrlact(int action, struct tcf_proto *tp,

14
net/sched/act_api.c
View File

@ -989,6 +989,20 @@ int tcf_action_init(struct net *net, struct tcf_proto *tp, struct nlattr *nla,
return err;
}
void tcf_action_update_stats(struct tc_action *a, u64 bytes, u32 packets,
bool drop, bool hw)
{
_bstats_cpu_update(this_cpu_ptr(a->cpu_bstats), bytes, packets);
if (drop)
this_cpu_ptr(a->cpu_qstats)->drops += packets;
if (hw)
_bstats_cpu_update(this_cpu_ptr(a->cpu_bstats_hw),
bytes, packets);
}
EXPORT_SYMBOL(tcf_action_update_stats);
int tcf_action_copy_stats(struct sk_buff *skb, struct tc_action *p,
int compat_mode)
{

6
net/sched/act_ct.c
View File

@ -905,11 +905,7 @@ static void tcf_stats_update(struct tc_action *a, u64 bytes, u32 packets,
{
struct tcf_ct *c = to_ct(a);
_bstats_cpu_update(this_cpu_ptr(a->cpu_bstats), bytes, packets);
if (hw)
_bstats_cpu_update(this_cpu_ptr(a->cpu_bstats_hw),
bytes, packets);
tcf_action_update_stats(a, bytes, packets, false, hw);
c->tcf_tm.lastuse = max_t(u64, c->tcf_tm.lastuse, lastuse);
}

10
net/sched/act_gact.c
View File

@ -177,15 +177,7 @@ static void tcf_gact_stats_update(struct tc_action *a, u64 bytes, u32 packets,
int action = READ_ONCE(gact->tcf_action);
struct tcf_t *tm = &gact->tcf_tm;
_bstats_cpu_update(this_cpu_ptr(gact->common.cpu_bstats), bytes,
packets);
if (action == TC_ACT_SHOT)
this_cpu_ptr(gact->common.cpu_qstats)->drops += packets;
if (hw)
_bstats_cpu_update(this_cpu_ptr(gact->common.cpu_bstats_hw),
bytes, packets);
tcf_action_update_stats(a, bytes, packets, action == TC_ACT_SHOT, hw);
tm->lastuse = max_t(u64, tm->lastuse, lastuse);
}

5
net/sched/act_mirred.c
View File

@ -318,10 +318,7 @@ static void tcf_stats_update(struct tc_action *a, u64 bytes, u32 packets,
struct tcf_mirred *m = to_mirred(a);
struct tcf_t *tm = &m->tcf_tm;
_bstats_cpu_update(this_cpu_ptr(a->cpu_bstats), bytes, packets);
if (hw)
_bstats_cpu_update(this_cpu_ptr(a->cpu_bstats_hw),
bytes, packets);
tcf_action_update_stats(a, bytes, packets, false, hw);
tm->lastuse = max_t(u64, tm->lastuse, lastuse);
}

5
net/sched/act_police.c
View File

@ -294,10 +294,7 @@ static void tcf_police_stats_update(struct tc_action *a,
struct tcf_police *police = to_police(a);
struct tcf_t *tm = &police->tcf_tm;
_bstats_cpu_update(this_cpu_ptr(a->cpu_bstats), bytes, packets);
if (hw)
_bstats_cpu_update(this_cpu_ptr(a->cpu_bstats_hw),
bytes, packets);
tcf_action_update_stats(a, bytes, packets, false, hw);
tm->lastuse = max_t(u64, tm->lastuse, lastuse);
}

5
net/sched/act_vlan.c
View File

@ -307,10 +307,7 @@ static void tcf_vlan_stats_update(struct tc_action *a, u64 bytes, u32 packets,
struct tcf_vlan *v = to_vlan(a);
struct tcf_t *tm = &v->tcf_tm;
_bstats_cpu_update(this_cpu_ptr(a->cpu_bstats), bytes, packets);
if (hw)
_bstats_cpu_update(this_cpu_ptr(a->cpu_bstats_hw),
bytes, packets);
tcf_action_update_stats(a, bytes, packets, false, hw);
tm->lastuse = max_t(u64, tm->lastuse, lastuse);
}