6749d59016
A recent addition to TC actions is the ability to manipulate the MPLS headers on packets. In preparation to offload such actions to hardware, update the IR code to accept and prepare the new actions. Note that no driver currently impliments the MPLS dec_ttl action so this is not included. Signed-off-by: John Hurley <john.hurley@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
106 lines
2 KiB
C
106 lines
2 KiB
C
/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
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/* Copyright (C) 2019 Netronome Systems, Inc. */
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#ifndef __NET_TC_MPLS_H
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#define __NET_TC_MPLS_H
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#include <linux/tc_act/tc_mpls.h>
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#include <net/act_api.h>
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struct tcf_mpls_params {
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int tcfm_action;
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u32 tcfm_label;
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u8 tcfm_tc;
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u8 tcfm_ttl;
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u8 tcfm_bos;
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__be16 tcfm_proto;
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struct rcu_head rcu;
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};
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#define ACT_MPLS_TC_NOT_SET 0xff
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#define ACT_MPLS_BOS_NOT_SET 0xff
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#define ACT_MPLS_LABEL_NOT_SET 0xffffffff
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struct tcf_mpls {
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struct tc_action common;
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struct tcf_mpls_params __rcu *mpls_p;
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};
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#define to_mpls(a) ((struct tcf_mpls *)a)
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static inline bool is_tcf_mpls(const struct tc_action *a)
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{
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#ifdef CONFIG_NET_CLS_ACT
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if (a->ops && a->ops->id == TCA_ID_MPLS)
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return true;
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#endif
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return false;
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}
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static inline u32 tcf_mpls_action(const struct tc_action *a)
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{
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u32 tcfm_action;
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rcu_read_lock();
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tcfm_action = rcu_dereference(to_mpls(a)->mpls_p)->tcfm_action;
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rcu_read_unlock();
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return tcfm_action;
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}
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static inline __be16 tcf_mpls_proto(const struct tc_action *a)
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{
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__be16 tcfm_proto;
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rcu_read_lock();
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tcfm_proto = rcu_dereference(to_mpls(a)->mpls_p)->tcfm_proto;
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rcu_read_unlock();
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return tcfm_proto;
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}
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static inline u32 tcf_mpls_label(const struct tc_action *a)
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{
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u32 tcfm_label;
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rcu_read_lock();
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tcfm_label = rcu_dereference(to_mpls(a)->mpls_p)->tcfm_label;
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rcu_read_unlock();
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return tcfm_label;
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}
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static inline u8 tcf_mpls_tc(const struct tc_action *a)
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{
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u8 tcfm_tc;
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rcu_read_lock();
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tcfm_tc = rcu_dereference(to_mpls(a)->mpls_p)->tcfm_tc;
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rcu_read_unlock();
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return tcfm_tc;
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}
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static inline u8 tcf_mpls_bos(const struct tc_action *a)
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{
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u8 tcfm_bos;
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rcu_read_lock();
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tcfm_bos = rcu_dereference(to_mpls(a)->mpls_p)->tcfm_bos;
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rcu_read_unlock();
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return tcfm_bos;
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}
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static inline u8 tcf_mpls_ttl(const struct tc_action *a)
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{
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u8 tcfm_ttl;
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rcu_read_lock();
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tcfm_ttl = rcu_dereference(to_mpls(a)->mpls_p)->tcfm_ttl;
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rcu_read_unlock();
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return tcfm_ttl;
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}
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#endif /* __NET_TC_MPLS_H */
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