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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2008, Intel Corporation.
*
* Author: Alexander Duyck <alexander.h.duyck@intel.com>
*/
#ifndef __NET_TC_SKBEDIT_H
#define __NET_TC_SKBEDIT_H
#include <net/act_api.h>
#include <linux/tc_act/tc_skbedit.h>
struct tcf_skbedit_params {
u32 flags;
u32 priority;
u32 mark;
u32 mask;
u16 queue_mapping;
u16 mapping_mod;
u16 ptype;
struct rcu_head rcu;
};
struct tcf_skbedit {
struct tc_action common;
struct tcf_skbedit_params __rcu *params;
};
#define to_skbedit(a) ((struct tcf_skbedit *)a)
/* Return true iff action is the one identified by FLAG. */
static inline bool is_tcf_skbedit_with_flag(const struct tc_action *a, u32 flag)
{
#ifdef CONFIG_NET_CLS_ACT
u32 flags;
if (a->ops && a->ops->id == TCA_ID_SKBEDIT) {
rcu_read_lock();
flags = rcu_dereference(to_skbedit(a)->params)->flags;
rcu_read_unlock();
return flags == flag;
}
#endif
return false;
}
/* Return true iff action is mark */
static inline bool is_tcf_skbedit_mark(const struct tc_action *a)
{
return is_tcf_skbedit_with_flag(a, SKBEDIT_F_MARK);
}
static inline u32 tcf_skbedit_mark(const struct tc_action *a)
{
u32 mark;
rcu_read_lock();
mark = rcu_dereference(to_skbedit(a)->params)->mark;
rcu_read_unlock();
return mark;
}
/* Return true iff action is ptype */
static inline bool is_tcf_skbedit_ptype(const struct tc_action *a)
{
return is_tcf_skbedit_with_flag(a, SKBEDIT_F_PTYPE);
}
static inline u32 tcf_skbedit_ptype(const struct tc_action *a)
{
u16 ptype;
rcu_read_lock();
ptype = rcu_dereference(to_skbedit(a)->params)->ptype;
rcu_read_unlock();
return ptype;
}
/* Return true iff action is priority */
static inline bool is_tcf_skbedit_priority(const struct tc_action *a)
{
return is_tcf_skbedit_with_flag(a, SKBEDIT_F_PRIORITY);
}
static inline u32 tcf_skbedit_priority(const struct tc_action *a)
{
u32 priority;
rcu_read_lock();
priority = rcu_dereference(to_skbedit(a)->params)->priority;
rcu_read_unlock();
return priority;
}
static inline u16 tcf_skbedit_rx_queue_mapping(const struct tc_action *a)
{
u16 rx_queue;
rcu_read_lock();
rx_queue = rcu_dereference(to_skbedit(a)->params)->queue_mapping;
rcu_read_unlock();
return rx_queue;
}
/* Return true iff action is queue_mapping */
static inline bool is_tcf_skbedit_queue_mapping(const struct tc_action *a)
{
return is_tcf_skbedit_with_flag(a, SKBEDIT_F_QUEUE_MAPPING);
}
/* Return true if action is on ingress traffic */
static inline bool is_tcf_skbedit_ingress(u32 flags)
{
return flags & TCA_ACT_FLAGS_AT_INGRESS;
}
static inline bool is_tcf_skbedit_tx_queue_mapping(const struct tc_action *a)
{
return is_tcf_skbedit_queue_mapping(a) &&
!is_tcf_skbedit_ingress(a->tcfa_flags);
}
static inline bool is_tcf_skbedit_rx_queue_mapping(const struct tc_action *a)
{
return is_tcf_skbedit_queue_mapping(a) &&
is_tcf_skbedit_ingress(a->tcfa_flags);
}
/* Return true iff action is inheritdsfield */
static inline bool is_tcf_skbedit_inheritdsfield(const struct tc_action *a)
{
return is_tcf_skbedit_with_flag(a, SKBEDIT_F_INHERITDSFIELD);
}
#endif /* __NET_TC_SKBEDIT_H */
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