Differential D24669 Diff 71290 sys/net/route/route_var.h

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sys/net/route/route_var.h

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*/		*/

#ifndef _NET_ROUTE_VAR_H_		#ifndef _NET_ROUTE_VAR_H_
#define _NET_ROUTE_VAR_H_		#define _NET_ROUTE_VAR_H_

#ifndef RNF_NORMAL		#ifndef RNF_NORMAL
#include <net/radix.h>		#include <net/radix.h>
#endif		#endif
		#include <netinet/in.h> /* struct sockaddr_in */
#include <sys/counter.h>		#include <sys/counter.h>

struct nh_control;		struct nh_control;
typedef int rnh_preadd_entry_f_t(u_int fibnum, const struct sockaddr *addr,		typedef int rnh_preadd_entry_f_t(u_int fibnum, const struct sockaddr *addr,
const struct sockaddr mask, struct nhop_object nh);		const struct sockaddr mask, struct nhop_object nh);

struct rib_head {		struct rib_head {
struct radix_head head;		struct radix_head head;
▲ Show 20 Lines • Show All 69 Lines • ▼ Show 20 Lines	struct rtentry {
* XXX struct rtentry must begin with a struct radix_node (or two!)		* XXX struct rtentry must begin with a struct radix_node (or two!)
* because the code does some casts of a 'struct radix_node *'		* because the code does some casts of a 'struct radix_node *'
* to a 'struct rtentry *'		* to a 'struct rtentry *'
*/		*/
#define rt_key(r) (((struct sockaddr *)(&(r)->rt_nodes->rn_key)))		#define rt_key(r) (((struct sockaddr *)(&(r)->rt_nodes->rn_key)))
#define rt_mask(r) (((struct sockaddr *)(&(r)->rt_nodes->rn_mask)))		#define rt_mask(r) (((struct sockaddr *)(&(r)->rt_nodes->rn_mask)))
#define rt_key_const(r) (((const struct sockaddr const *)(&(r)->rt_nodes->rn_key)))		#define rt_key_const(r) (((const struct sockaddr const *)(&(r)->rt_nodes->rn_key)))
#define rt_mask_const(r) (((const struct sockaddr const *)(&(r)->rt_nodes->rn_mask)))		#define rt_mask_const(r) (((const struct sockaddr const *)(&(r)->rt_nodes->rn_mask)))

		/*
		* 2 radix_node structurs above consists of 2x6 pointers, leaving
		* 4 pointers (32 bytes) of the second cache line on amd64.
		*
		*/
struct nhop_object rt_nhop; / nexthop data */		struct nhop_object rt_nhop; / nexthop data */
		union {
		/*
		* Destination address storage.
		* sizeof(struct sockaddr_in6) == 28, however
		* the dataplane-relevant part (e.g. address) lies
		* at offset 8..24, making the address not crossing
		* cacheline boundary.
		*/
		struct sockaddr_in rt_dst4;
		struct sockaddr_in6 rt_dst6;
		struct sockaddr rt_dst;
		char rt_dstb[28];
		};

int rt_flags; /* up/down?, host/net */		int rt_flags; /* up/down?, host/net */
int rt_refcnt; /* # held references */		int rt_refcnt; /* # held references */
u_int rt_fibnum; /* which FIB */		u_int rt_fibnum; /* which FIB */
u_long rt_weight; /* absolute weight */		u_long rt_weight; /* absolute weight */
u_long rt_expire; /* lifetime for route, e.g. redirect */		u_long rt_expire; /* lifetime for route, e.g. redirect */
#define rt_endzero rt_pksent		#define rt_endzero rt_mtx
counter_u64_t rt_pksent; /* packets sent using this route */
struct mtx rt_mtx; /* mutex for routing entry */		struct mtx rt_mtx; /* mutex for routing entry */
struct rtentry rt_chain; / pointer to next rtentry to delete */		struct rtentry rt_chain; / pointer to next rtentry to delete */
};		};

#define RT_LOCK_INIT(_rt) \		#define RT_LOCK_INIT(_rt) \
mtx_init(&(_rt)->rt_mtx, "rtentry", NULL, MTX_DEF \| MTX_DUPOK \| MTX_NEW)		mtx_init(&(_rt)->rt_mtx, "rtentry", NULL, MTX_DEF \| MTX_DUPOK \| MTX_NEW)
#define RT_LOCK(_rt) mtx_lock(&(_rt)->rt_mtx)		#define RT_LOCK(_rt) mtx_lock(&(_rt)->rt_mtx)
#define RT_UNLOCK(_rt) mtx_unlock(&(_rt)->rt_mtx)		#define RT_UNLOCK(_rt) mtx_unlock(&(_rt)->rt_mtx)
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