Differential D26449 Diff 77092 sys/net/route/nhop_var.h

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sys/net/route/nhop_var.h

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*		*
* Header is not intended to be included by the code external to the		* Header is not intended to be included by the code external to the
* routing subsystem.		* routing subsystem.
*/		*/

#ifndef _NET_ROUTE_NHOP_VAR_H_		#ifndef _NET_ROUTE_NHOP_VAR_H_
#define _NET_ROUTE_NHOP_VAR_H_		#define _NET_ROUTE_NHOP_VAR_H_

		MALLOC_DECLARE(M_NHOP);

/* define nhop hash table */		/* define nhop hash table */
struct nhop_priv;		struct nhop_priv;
CHT_SLIST_DEFINE(nhops, struct nhop_priv);		CHT_SLIST_DEFINE(nhops, struct nhop_priv);
/* produce hash value for an object */		/* produce hash value for an object */
#define nhops_hash_obj(_obj) hash_priv(_obj)		#define nhops_hash_obj(_obj) hash_priv(_obj)
/* compare two objects */		/* compare two objects */
#define nhops_cmp(_one, _two) cmp_priv(_one, _two)		#define nhops_cmp(_one, _two) cmp_priv(_one, _two)
/* next object accessor */		/* next object accessor */
#define nhops_next(_obj) (_obj)->nh_next		#define nhops_next(_obj) (_obj)->nh_next

		/* define multipath hash table */
		struct nhgrp_priv;
		CHT_SLIST_DEFINE(nhgroups, struct nhgrp_priv);

struct nh_control {		struct nh_control {
struct nhops_head nh_head; /* hash table head */		struct nhops_head nh_head; /* hash table head */
struct bitmask_head nh_idx_head; /* nhop index head */		struct bitmask_head nh_idx_head; /* nhop index head */
		struct nhgroups_head gr_head; /* nhgrp hash table head */
		struct bitmask_head gr_idx_head; /* nhgrp index head */
struct rwlock ctl_lock; /* overall ctl lock */		struct rwlock ctl_lock; /* overall ctl lock */
struct rib_head ctl_rh; / pointer back to rnh */		struct rib_head ctl_rh; / pointer back to rnh */
struct epoch_context ctl_epoch_ctx; /* epoch ctl helper */		struct epoch_context ctl_epoch_ctx; /* epoch ctl helper */
};		};

#define NHOPS_WLOCK(ctl) rw_wlock(&(ctl)->ctl_lock)		#define NHOPS_WLOCK(ctl) rw_wlock(&(ctl)->ctl_lock)
#define NHOPS_RLOCK(ctl) rw_rlock(&(ctl)->ctl_lock)		#define NHOPS_RLOCK(ctl) rw_rlock(&(ctl)->ctl_lock)
#define NHOPS_WUNLOCK(ctl) rw_wunlock(&(ctl)->ctl_lock)		#define NHOPS_WUNLOCK(ctl) rw_wunlock(&(ctl)->ctl_lock)
Show All 14 Lines	struct nhop_priv {
int rt_flags; /* routing flags for the control plane */		int rt_flags; /* routing flags for the control plane */
struct nhop_object nh; / backreference to the dataplane nhop */		struct nhop_object nh; / backreference to the dataplane nhop */
struct nh_control nh_control; / backreference to the rnh */		struct nh_control nh_control; / backreference to the rnh */
struct nhop_priv nh_next; / hash table membership */		struct nhop_priv nh_next; / hash table membership */
struct vnet nh_vnet; / vnet nhop belongs to */		struct vnet nh_vnet; / vnet nhop belongs to */
struct epoch_context nh_epoch_ctx; /* epoch data for nhop */		struct epoch_context nh_epoch_ctx; /* epoch data for nhop */
};		};

#define NH_IS_PINNED(_nh) ((_nh)->nh_priv->rt_flags & RTF_PINNED)		#define NH_IS_PINNED(_nh) ((!NH_IS_NHGRP(_nh)) && \
		((_nh)->nh_priv->rt_flags & RTF_PINNED))

/* nhop.c */		/* nhop.c */
struct nhop_priv find_nhop(struct nh_control ctl,		struct nhop_priv find_nhop(struct nh_control ctl,
const struct nhop_priv *nh_priv);		const struct nhop_priv *nh_priv);
int link_nhop(struct nh_control ctl, struct nhop_priv nh_priv);		int link_nhop(struct nh_control ctl, struct nhop_priv nh_priv);
struct nhop_priv unlink_nhop(struct nh_control ctl, struct nhop_priv *nh_priv);		struct nhop_priv unlink_nhop(struct nh_control ctl, struct nhop_priv *nh_priv);

/* nhop_ctl.c */		/* nhop_ctl.c */
int cmp_priv(const struct nhop_priv _one, const struct nhop_priv _two);		int cmp_priv(const struct nhop_priv _one, const struct nhop_priv _two);

#endif		#endif