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net: sched: update action implementations to support flags

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Extend struct tc_action with new "tcfa_flags" field. Set the field in
tcf_idr_create() function and provide new helper
tcf_idr_create_from_flags() that derives 'cpustats' boolean from flags
value. Update individual hardware-offloaded actions init() to pass their
"flags" argument to new helper in order to skip percpu stats allocation
when user requested it through flags.

Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vlad Buslov
2019-10-30 16:09:06 +02:00
committed by David S. Miller
parent abbb0d3363
commit e382267860
21 changed files with 53 additions and 27 deletions
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7
include/net/act_api.h
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@@ -41,6 +41,7 @@ struct tc_action {
struct gnet_stats_queue __percpu *cpu_qstats;
struct tc_cookie __rcu *act_cookie;
struct tcf_chain __rcu *goto_chain;
u32 tcfa_flags;
};
#define tcf_index common.tcfa_index
#define tcf_refcnt common.tcfa_refcnt
@@ -154,7 +155,11 @@ int tcf_generic_walker(struct tc_action_net *tn, struct sk_buff *skb,
int tcf_idr_search(struct tc_action_net *tn, struct tc_action **a, u32 index);
int tcf_idr_create(struct tc_action_net *tn, u32 index, struct nlattr *est,
struct tc_action **a, const struct tc_action_ops *ops,
int bind, bool cpustats);
int bind, bool cpustats, u32 flags);
int tcf_idr_create_from_flags(struct tc_action_net *tn, u32 index,
struct nlattr *est, struct tc_action **a,
const struct tc_action_ops *ops, int bind,
u32 flags);
void tcf_idr_insert(struct tc_action_net *tn, struct tc_action *a);
void tcf_idr_cleanup(struct tc_action_net *tn, u32 index);