netdev - [PATCH v5 net-next 09/12] net: sched: save full flags for tc action

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Message-Id: <20211203122444.11756-10-simon.horman@corigine.com>
Date:   Fri,  3 Dec 2021 13:24:41 +0100
From:   Simon Horman <simon.horman@...igine.com>
To:     netdev@...r.kernel.org
Cc:     Cong Wang <xiyou.wangcong@...il.com>,
        Ido Schimmel <idosch@...dia.com>,
        Jamal Hadi Salim <jhs@...atatu.com>,
        Jiri Pirko <jiri@...nulli.us>, Oz Shlomo <ozsh@...dia.com>,
        Roi Dayan <roid@...dia.com>, Vlad Buslov <vladbu@...dia.com>,
        Baowen Zheng <baowen.zheng@...igine.com>,
        Louis Peens <louis.peens@...igine.com>,
        oss-drivers@...igine.com, Simon Horman <simon.horman@...igine.com>
Subject: [PATCH v5 net-next 09/12] net: sched: save full flags for tc action

From: Baowen Zheng <baowen.zheng@...igine.com>

Save full action flags and return user flags when return flags to
user space.

Save full action flags to distinguish if the action is created
independent from classifier.

We made this change mainly for further patch to reoffload tc actions.

Signed-off-by: Baowen Zheng <baowen.zheng@...igine.com>
Signed-off-by: Simon Horman <simon.horman@...igine.com>
---
 net/sched/act_api.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index 4e309b8e49bb..e11a73b5934c 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -668,7 +668,7 @@ int tcf_idr_create(struct tc_action_net *tn, u32 index, struct nlattr *est,
 	p->tcfa_tm.install = jiffies;
 	p->tcfa_tm.lastuse = jiffies;
 	p->tcfa_tm.firstuse = 0;
-	p->tcfa_flags = flags & TCA_ACT_FLAGS_USER_MASK;
+	p->tcfa_flags = flags;
 	if (est) {
 		err = gen_new_estimator(&p->tcfa_bstats, p->cpu_bstats,
 					&p->tcfa_rate_est,
@@ -995,6 +995,7 @@ tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int bind, int ref)
 	int err = -EINVAL;
 	unsigned char *b = skb_tail_pointer(skb);
 	struct nlattr *nest;
+	u32 flags;
 
 	if (tcf_action_dump_terse(skb, a, false))
 		goto nla_put_failure;
@@ -1009,9 +1010,10 @@ tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int bind, int ref)
 			       a->used_hw_stats, TCA_ACT_HW_STATS_ANY))
 		goto nla_put_failure;
 
-	if (a->tcfa_flags &&
+	flags = a->tcfa_flags & TCA_ACT_FLAGS_USER_MASK;
+	if (flags &&
 	    nla_put_bitfield32(skb, TCA_ACT_FLAGS,
-			       a->tcfa_flags, a->tcfa_flags))
+			       flags, flags))
 		goto nla_put_failure;
 
 	if (nla_put_u32(skb, TCA_ACT_IN_HW_COUNT, a->in_hw_count))
-- 
2.20.1