#ifndef __NET_PKT_SCHED_H
#define __NET_PKT_SCHED_H
-#include <linux/config.h>
-#include <linux/netdevice.h>
-#include <linux/types.h>
-#include <linux/pkt_sched.h>
-#include <linux/rcupdate.h>
-#include <net/pkt_cls.h>
-#include <linux/module.h>
-#include <linux/rtnetlink.h>
-
-struct rtattr;
-struct Qdisc;
+#include <net/sch_generic.h>
struct qdisc_walker
{
int (*fn)(struct Qdisc *, unsigned long cl, struct qdisc_walker *);
};
-struct Qdisc_class_ops
-{
- /* Child qdisc manipulation */
- int (*graft)(struct Qdisc *, unsigned long cl, struct Qdisc *, struct Qdisc **);
- struct Qdisc * (*leaf)(struct Qdisc *, unsigned long cl);
-
- /* Class manipulation routines */
- unsigned long (*get)(struct Qdisc *, u32 classid);
- void (*put)(struct Qdisc *, unsigned long);
- int (*change)(struct Qdisc *, u32, u32, struct rtattr **, unsigned long *);
- int (*delete)(struct Qdisc *, unsigned long);
- void (*walk)(struct Qdisc *, struct qdisc_walker * arg);
-
- /* Filter manipulation */
- struct tcf_proto ** (*tcf_chain)(struct Qdisc *, unsigned long);
- unsigned long (*bind_tcf)(struct Qdisc *, unsigned long, u32 classid);
- void (*unbind_tcf)(struct Qdisc *, unsigned long);
-
- /* rtnetlink specific */
- int (*dump)(struct Qdisc *, unsigned long, struct sk_buff *skb, struct tcmsg*);
-};
-
-struct module;
-
-struct Qdisc_ops
-{
- struct Qdisc_ops *next;
- struct Qdisc_class_ops *cl_ops;
- char id[IFNAMSIZ];
- int priv_size;
-
- int (*enqueue)(struct sk_buff *, struct Qdisc *);
- struct sk_buff * (*dequeue)(struct Qdisc *);
- int (*requeue)(struct sk_buff *, struct Qdisc *);
- unsigned int (*drop)(struct Qdisc *);
-
- int (*init)(struct Qdisc *, struct rtattr *arg);
- void (*reset)(struct Qdisc *);
- void (*destroy)(struct Qdisc *);
- int (*change)(struct Qdisc *, struct rtattr *arg);
-
- int (*dump)(struct Qdisc *, struct sk_buff *);
-
- struct module *owner;
-};
-
extern rwlock_t qdisc_tree_lock;
-struct Qdisc
-{
- int (*enqueue)(struct sk_buff *skb, struct Qdisc *dev);
- struct sk_buff * (*dequeue)(struct Qdisc *dev);
- unsigned flags;
-#define TCQ_F_BUILTIN 1
-#define TCQ_F_THROTTLED 2
-#define TCQ_F_INGRES 4
- int padded;
- struct Qdisc_ops *ops;
- u32 handle;
- u32 parent;
- atomic_t refcnt;
- struct sk_buff_head q;
- struct net_device *dev;
- struct list_head list;
-
- struct tc_stats stats;
- spinlock_t *stats_lock;
- struct rcu_head q_rcu;
- int (*reshape_fail)(struct sk_buff *skb, struct Qdisc *q);
-
- /* This field is deprecated, but it is still used by CBQ
- * and it will live until better solution will be invented.
- */
- struct Qdisc *__parent;
-};
-
#define QDISC_ALIGN 32
#define QDISC_ALIGN_CONST (QDISC_ALIGN - 1)
& ~QDISC_ALIGN_CONST);
}
-struct qdisc_rate_table
-{
- struct tc_ratespec rate;
- u32 data[256];
- struct qdisc_rate_table *next;
- int refcnt;
-};
-
-extern void qdisc_lock_tree(struct net_device *dev);
-extern void qdisc_unlock_tree(struct net_device *dev);
-
-#define sch_tree_lock(q) qdisc_lock_tree((q)->dev)
-#define sch_tree_unlock(q) qdisc_unlock_tree((q)->dev)
-#define tcf_tree_lock(tp) qdisc_lock_tree((tp)->q->dev)
-#define tcf_tree_unlock(tp) qdisc_unlock_tree((tp)->q->dev)
-
-#define cls_set_class(tp, clp, cl) tcf_set_class(tp, clp, cl)
-static inline unsigned long
-__cls_set_class(unsigned long *clp, unsigned long cl)
-{
- unsigned long old_cl;
-
- old_cl = *clp;
- *clp = cl;
- return old_cl;
-}
-
-
/*
Timer resolution MUST BE < 10% of min_schedulable_packet_size/bandwidth
__delta; \
})
-extern int psched_tod_diff(int delta_sec, int bound);
+static inline int
+psched_tod_diff(int delta_sec, int bound)
+{
+ int delta;
+
+ if (bound <= 1000000 || delta_sec > (0x7FFFFFFF/1000000)-1)
+ return bound;
+ delta = delta_sec * 1000000;
+ if (delta > bound)
+ delta = bound;
+ return delta;
+}
#define PSCHED_TDIFF_SAFE(tv1, tv2, bound) \
({ \
#endif /* !CONFIG_NET_SCH_CLK_GETTIMEOFDAY */
-struct tcf_police
-{
- struct tcf_police *next;
- int refcnt;
-#ifdef CONFIG_NET_CLS_ACT
- int bindcnt;
-#endif
- u32 index;
- int action;
- int result;
- u32 ewma_rate;
- u32 burst;
- u32 mtu;
- u32 toks;
- u32 ptoks;
- psched_time_t t_c;
- spinlock_t lock;
- struct qdisc_rate_table *R_tab;
- struct qdisc_rate_table *P_tab;
-
- struct tc_stats stats;
- spinlock_t *stats_lock;
-};
-
-#ifdef CONFIG_NET_CLS_ACT
-
-#define ACT_P_CREATED 1
-#define ACT_P_DELETED 1
-#define tca_gen(name) \
-struct tcf_##name *next; \
- u32 index; \
- int refcnt; \
- int bindcnt; \
- u32 capab; \
- int action; \
- struct tcf_t tm; \
- struct tc_stats stats; \
- spinlock_t *stats_lock; \
- spinlock_t lock
-
-
-struct tc_action
-{
- void *priv;
- struct tc_action_ops *ops;
- __u32 type; /* for backward compat(TCA_OLD_COMPAT) */
- __u32 order;
- struct tc_action *next;
-};
-
-#define TCA_CAP_NONE 0
-struct tc_action_ops
-{
- struct tc_action_ops *next;
- char kind[IFNAMSIZ];
- __u32 type; /* TBD to match kind */
- __u32 capab; /* capabilities includes 4 bit version */
- struct module *owner;
- int (*act)(struct sk_buff **, struct tc_action *);
- int (*get_stats)(struct sk_buff *, struct tc_action *);
- int (*dump)(struct sk_buff *, struct tc_action *,int , int);
- int (*cleanup)(struct tc_action *, int bind);
- int (*lookup)(struct tc_action *, u32 );
- int (*init)(struct rtattr *,struct rtattr *,struct tc_action *, int , int );
- int (*walk)(struct sk_buff *, struct netlink_callback *, int , struct tc_action *);
-};
-
-extern int tcf_register_action(struct tc_action_ops *a);
-extern int tcf_unregister_action(struct tc_action_ops *a);
-extern void tcf_action_destroy(struct tc_action *a, int bind);
-extern int tcf_action_exec(struct sk_buff *skb, struct tc_action *a, struct tcf_result *res);
-extern int tcf_action_init(struct rtattr *rta, struct rtattr *est, struct tc_action *a,char *n, int ovr, int bind);
-extern int tcf_action_init_1(struct rtattr *rta, struct rtattr *est, struct tc_action *a,char *n, int ovr, int bind);
-extern int tcf_action_dump(struct sk_buff *skb, struct tc_action *a, int, int);
-extern int tcf_action_dump_old(struct sk_buff *skb, struct tc_action *a, int, int);
-extern int tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int, int);
-extern int tcf_action_copy_stats (struct sk_buff *,struct tc_action *);
-extern int tcf_act_police_locate(struct rtattr *rta, struct rtattr *est,struct tc_action *,int , int );
-extern int tcf_act_police_dump(struct sk_buff *, struct tc_action *, int, int);
-extern int tcf_act_police(struct sk_buff **skb, struct tc_action *a);
-#endif
-
-extern unsigned long tcf_set_class(struct tcf_proto *tp, unsigned long *clp,
- unsigned long cl);
-extern int tcf_police(struct sk_buff *skb, struct tcf_police *p);
-extern int qdisc_copy_stats(struct sk_buff *skb, struct tc_stats *st, spinlock_t *lock);
-extern void tcf_police_destroy(struct tcf_police *p);
-extern struct tcf_police * tcf_police_locate(struct rtattr *rta, struct rtattr *est);
-extern int tcf_police_dump(struct sk_buff *skb, struct tcf_police *p);
-
-static inline int tcf_police_release(struct tcf_police *p, int bind)
-{
- int ret = 0;
-#ifdef CONFIG_NET_CLS_ACT
- if (p) {
- if (bind) {
- p->bindcnt--;
- }
- p->refcnt--;
- if (p->refcnt <= 0 && !p->bindcnt) {
- tcf_police_destroy(p);
- ret = 1;
- }
- }
-#else
- if (p && --p->refcnt == 0)
- tcf_police_destroy(p);
-
-#endif
- return ret;
-}
-
extern struct Qdisc noop_qdisc;
extern struct Qdisc_ops noop_qdisc_ops;
extern struct Qdisc_ops pfifo_qdisc_ops;
extern struct Qdisc_ops bfifo_qdisc_ops;
-int register_qdisc(struct Qdisc_ops *qops);
-int unregister_qdisc(struct Qdisc_ops *qops);
-struct Qdisc *qdisc_lookup(struct net_device *dev, u32 handle);
-struct Qdisc *qdisc_lookup_class(struct net_device *dev, u32 handle);
-void dev_init_scheduler(struct net_device *dev);
-void dev_shutdown(struct net_device *dev);
-void dev_activate(struct net_device *dev);
-void dev_deactivate(struct net_device *dev);
-void qdisc_reset(struct Qdisc *qdisc);
-void qdisc_destroy(struct Qdisc *qdisc);
-struct Qdisc * qdisc_create_dflt(struct net_device *dev, struct Qdisc_ops *ops);
-int qdisc_new_estimator(struct tc_stats *stats, spinlock_t *stats_lock, struct rtattr *opt);
-void qdisc_kill_estimator(struct tc_stats *stats);
-struct qdisc_rate_table *qdisc_get_rtab(struct tc_ratespec *r, struct rtattr *tab);
-void qdisc_put_rtab(struct qdisc_rate_table *tab);
+extern int register_qdisc(struct Qdisc_ops *qops);
+extern int unregister_qdisc(struct Qdisc_ops *qops);
+extern struct Qdisc *qdisc_lookup(struct net_device *dev, u32 handle);
+extern struct Qdisc *qdisc_lookup_class(struct net_device *dev, u32 handle);
+extern void dev_init_scheduler(struct net_device *dev);
+extern void dev_shutdown(struct net_device *dev);
+extern void dev_activate(struct net_device *dev);
+extern void dev_deactivate(struct net_device *dev);
+extern void qdisc_reset(struct Qdisc *qdisc);
+extern void qdisc_destroy(struct Qdisc *qdisc);
+extern struct Qdisc * qdisc_create_dflt(struct net_device *dev,
+ struct Qdisc_ops *ops);
+extern struct qdisc_rate_table *qdisc_get_rtab(struct tc_ratespec *r,
+ struct rtattr *tab);
+extern void qdisc_put_rtab(struct qdisc_rate_table *tab);
extern int qdisc_restart(struct net_device *dev);
+static inline void qdisc_run(struct net_device *dev)
+{
+ while (!netif_queue_stopped(dev) && qdisc_restart(dev) < 0)
+ /* NOTHING */;
+}
+
+extern int tc_classify(struct sk_buff *skb, struct tcf_proto *tp,
+ struct tcf_result *res);
+
/* Calculate maximal size of packet seen by hard_start_xmit
routine of this device.
*/
git://git.onelab.eu / linux-2.6.git / blobdiff