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net: Add fib_nh_common and update fib_nh and fib6_nh

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Add fib_nh_common struct with common nexthop attributes. Convert
fib_nh and fib6_nh to use it. Use macros to move existing
fib_nh_* references to the new nh_common.nhc_*.

Signed-off-by: David Ahern <dsahern@gmail.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Ahern
2019-03-27 20:53:57 -07:00
committed by David S. Miller
parent ad1601ae02
commit f1741730dd
4 changed files with 42 additions and 19 deletions
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41
include/net/ip_fib.h
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@@ -76,27 +76,48 @@ struct fnhe_hash_bucket {
#define FNHE_HASH_SIZE (1 << FNHE_HASH_SHIFT)
#define FNHE_RECLAIM_DEPTH 5
struct fib_nh_common {
struct net_device *nhc_dev;
int nhc_oif;
unsigned int nhc_flags;
struct lwtunnel_state *nhc_lwtstate;
unsigned char nhc_scope;
u8 nhc_family;
u8 nhc_has_gw:1,
unused:7;
union {
__be32 ipv4;
struct in6_addr ipv6;
} nhc_gw;
int nhc_weight;
atomic_t nhc_upper_bound;
};
struct fib_nh {
struct net_device *fib_nh_dev;
struct fib_nh_common nh_common;
struct hlist_node nh_hash;
struct fib_info *nh_parent;
unsigned int fib_nh_flags;
unsigned char fib_nh_scope;
#ifdef CONFIG_IP_ROUTE_MULTIPATH
int fib_nh_weight;
atomic_t fib_nh_upper_bound;
#endif
#ifdef CONFIG_IP_ROUTE_CLASSID
__u32 nh_tclassid;
#endif
int fib_nh_oif;
__be32 fib_nh_gw4;
__be32 nh_saddr;
int nh_saddr_genid;
struct rtable __rcu * __percpu *nh_pcpu_rth_output;
struct rtable __rcu *nh_rth_input;
struct fnhe_hash_bucket __rcu *nh_exceptions;
struct lwtunnel_state *fib_nh_lws;
#define fib_nh_family nh_common.nhc_family
#define fib_nh_dev nh_common.nhc_dev
#define fib_nh_oif nh_common.nhc_oif
#define fib_nh_flags nh_common.nhc_flags
#define fib_nh_lws nh_common.nhc_lwtstate
#define fib_nh_scope nh_common.nhc_scope
#define fib_nh_family nh_common.nhc_family
#define fib_nh_has_gw nh_common.nhc_has_gw
#define fib_nh_gw4 nh_common.nhc_gw.ipv4
#define fib_nh_gw6 nh_common.nhc_gw.ipv6
#define fib_nh_weight nh_common.nhc_weight
#define fib_nh_upper_bound nh_common.nhc_upper_bound
};
/*