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Date: Sat, 4 May 2019 04:46:21 -0700
From: Jakub Kicinski <jakub.kicinski@...ronome.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, oss-drivers@...ronome.com,
jiri@...nulli.us, xiyou.wangcong@...il.com, idosch@...lanox.com,
f.fainelli@...il.com, andrew@...n.ch, vivien.didelot@...il.com,
gerlitz.or@...il.com, simon.horman@...ronome.com,
Pieter Jansen van Vuuren
<pieter.jansenvanvuuren@...ronome.com>,
Jakub Kicinski <jakub.kicinski@...ronome.com>
Subject: [PATCH net-next 06/13] net/sched: move police action structures to header
From: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@...ronome.com>
Move tcf_police_params, tcf_police and tc_police_compat structures to a
header. Making them usable to other code for example drivers that would
offload police actions to hardware.
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@...ronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@...ronome.com>
---
include/net/tc_act/tc_police.h | 70 ++++++++++++++++++++++++++++++++++
net/sched/act_police.c | 37 +-----------------
2 files changed, 71 insertions(+), 36 deletions(-)
create mode 100644 include/net/tc_act/tc_police.h
diff --git a/include/net/tc_act/tc_police.h b/include/net/tc_act/tc_police.h
new file mode 100644
index 000000000000..8b9ef3664262
--- /dev/null
+++ b/include/net/tc_act/tc_police.h
@@ -0,0 +1,70 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __NET_TC_POLICE_H
+#define __NET_TC_POLICE_H
+
+#include <net/act_api.h>
+
+struct tcf_police_params {
+ int tcfp_result;
+ u32 tcfp_ewma_rate;
+ s64 tcfp_burst;
+ u32 tcfp_mtu;
+ s64 tcfp_mtu_ptoks;
+ struct psched_ratecfg rate;
+ bool rate_present;
+ struct psched_ratecfg peak;
+ bool peak_present;
+ struct rcu_head rcu;
+};
+
+struct tcf_police {
+ struct tc_action common;
+ struct tcf_police_params __rcu *params;
+
+ spinlock_t tcfp_lock ____cacheline_aligned_in_smp;
+ s64 tcfp_toks;
+ s64 tcfp_ptoks;
+ s64 tcfp_t_c;
+};
+
+#define to_police(pc) ((struct tcf_police *)pc)
+
+/* old policer structure from before tc actions */
+struct tc_police_compat {
+ u32 index;
+ int action;
+ u32 limit;
+ u32 burst;
+ u32 mtu;
+ struct tc_ratespec rate;
+ struct tc_ratespec peakrate;
+};
+
+static inline bool is_tcf_police(const struct tc_action *act)
+{
+#ifdef CONFIG_NET_CLS_ACT
+ if (act->ops && act->ops->id == TCA_ID_POLICE)
+ return true;
+#endif
+ return false;
+}
+
+static inline u64 tcf_police_rate_bytes_ps(const struct tc_action *act)
+{
+ struct tcf_police *police = to_police(act);
+ struct tcf_police_params *params;
+
+ params = rcu_dereference_bh(police->params);
+ return params->rate.rate_bytes_ps;
+}
+
+static inline s64 tcf_police_tcfp_burst(const struct tc_action *act)
+{
+ struct tcf_police *police = to_police(act);
+ struct tcf_police_params *params;
+
+ params = rcu_dereference_bh(police->params);
+ return params->tcfp_burst;
+}
+
+#endif /* __NET_TC_POLICE_H */
diff --git a/net/sched/act_police.c b/net/sched/act_police.c
index b48e40c69ad0..e33bcab75d1f 100644
--- a/net/sched/act_police.c
+++ b/net/sched/act_police.c
@@ -22,42 +22,7 @@
#include <net/act_api.h>
#include <net/netlink.h>
#include <net/pkt_cls.h>
-
-struct tcf_police_params {
- int tcfp_result;
- u32 tcfp_ewma_rate;
- s64 tcfp_burst;
- u32 tcfp_mtu;
- s64 tcfp_mtu_ptoks;
- struct psched_ratecfg rate;
- bool rate_present;
- struct psched_ratecfg peak;
- bool peak_present;
- struct rcu_head rcu;
-};
-
-struct tcf_police {
- struct tc_action common;
- struct tcf_police_params __rcu *params;
-
- spinlock_t tcfp_lock ____cacheline_aligned_in_smp;
- s64 tcfp_toks;
- s64 tcfp_ptoks;
- s64 tcfp_t_c;
-};
-
-#define to_police(pc) ((struct tcf_police *)pc)
-
-/* old policer structure from before tc actions */
-struct tc_police_compat {
- u32 index;
- int action;
- u32 limit;
- u32 burst;
- u32 mtu;
- struct tc_ratespec rate;
- struct tc_ratespec peakrate;
-};
+#include <net/tc_act/tc_police.h>
/* Each policer is serialized by its individual spinlock */
--
2.21.0
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