~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/include/net/dst_ops.h

Version: ~ [ linux-5.9.1 ] ~ [ linux-5.8.16 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.72 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.152 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.202 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.240 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.240 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.85 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 #ifndef _NET_DST_OPS_H
  2 #define _NET_DST_OPS_H
  3 #include <linux/types.h>
  4 #include <linux/percpu_counter.h>
  5 #include <linux/cache.h>
  6 
  7 struct dst_entry;
  8 struct kmem_cachep;
  9 struct net_device;
 10 struct sk_buff;
 11 struct sock;
 12 struct net;
 13 
 14 struct dst_ops {
 15         unsigned short          family;
 16         unsigned int            gc_thresh;
 17 
 18         int                     (*gc)(struct dst_ops *ops);
 19         struct dst_entry *      (*check)(struct dst_entry *, __u32 cookie);
 20         unsigned int            (*default_advmss)(const struct dst_entry *);
 21         unsigned int            (*mtu)(const struct dst_entry *);
 22         u32 *                   (*cow_metrics)(struct dst_entry *, unsigned long);
 23         void                    (*destroy)(struct dst_entry *);
 24         void                    (*ifdown)(struct dst_entry *,
 25                                           struct net_device *dev, int how);
 26         struct dst_entry *      (*negative_advice)(struct dst_entry *);
 27         void                    (*link_failure)(struct sk_buff *);
 28         void                    (*update_pmtu)(struct dst_entry *dst, struct sock *sk,
 29                                                struct sk_buff *skb, u32 mtu);
 30         void                    (*redirect)(struct dst_entry *dst, struct sock *sk,
 31                                             struct sk_buff *skb);
 32         int                     (*local_out)(struct net *net, struct sock *sk, struct sk_buff *skb);
 33         struct neighbour *      (*neigh_lookup)(const struct dst_entry *dst,
 34                                                 struct sk_buff *skb,
 35                                                 const void *daddr);
 36 
 37         struct kmem_cache       *kmem_cachep;
 38 
 39         struct percpu_counter   pcpuc_entries ____cacheline_aligned_in_smp;
 40 };
 41 
 42 static inline int dst_entries_get_fast(struct dst_ops *dst)
 43 {
 44         return percpu_counter_read_positive(&dst->pcpuc_entries);
 45 }
 46 
 47 static inline int dst_entries_get_slow(struct dst_ops *dst)
 48 {
 49         int res;
 50 
 51         local_bh_disable();
 52         res = percpu_counter_sum_positive(&dst->pcpuc_entries);
 53         local_bh_enable();
 54         return res;
 55 }
 56 
 57 static inline void dst_entries_add(struct dst_ops *dst, int val)
 58 {
 59         local_bh_disable();
 60         percpu_counter_add(&dst->pcpuc_entries, val);
 61         local_bh_enable();
 62 }
 63 
 64 static inline int dst_entries_init(struct dst_ops *dst)
 65 {
 66         return percpu_counter_init(&dst->pcpuc_entries, 0, GFP_KERNEL);
 67 }
 68 
 69 static inline void dst_entries_destroy(struct dst_ops *dst)
 70 {
 71         percpu_counter_destroy(&dst->pcpuc_entries);
 72 }
 73 
 74 #endif
 75 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp