diff options
Diffstat (limited to 'include/net/pkt_sched.h')
| -rw-r--r-- | include/net/pkt_sched.h | 84 |
1 files changed, 52 insertions, 32 deletions
diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h index 46fb4d80c74..ec030cd7661 100644 --- a/include/net/pkt_sched.h +++ b/include/net/pkt_sched.h @@ -5,15 +5,14 @@ #include <linux/ktime.h> #include <net/sch_generic.h> -struct qdisc_walker -{ +struct qdisc_walker { int stop; int skip; int count; int (*fn)(struct Qdisc *, unsigned long cl, struct qdisc_walker *); }; -#define QDISC_ALIGNTO 32 +#define QDISC_ALIGNTO 64 #define QDISC_ALIGN(len) (((len) + QDISC_ALIGNTO-1) & ~(QDISC_ALIGNTO-1)) static inline void *qdisc_priv(struct Qdisc *q) @@ -33,7 +32,7 @@ static inline void *qdisc_priv(struct Qdisc *q) The result: [34]86 is not good choice for QoS router :-( - The things are not so bad, because we may use artifical + The things are not so bad, because we may use artificial clock evaluated by integration of network data flow in the most critical places. */ @@ -41,16 +40,17 @@ static inline void *qdisc_priv(struct Qdisc *q) typedef u64 psched_time_t; typedef long psched_tdiff_t; -/* Avoid doing 64 bit divide by 1000 */ -#define PSCHED_US2NS(x) ((s64)(x) << 10) -#define PSCHED_NS2US(x) ((x) >> 10) +/* Avoid doing 64 bit divide */ +#define PSCHED_SHIFT 6 +#define PSCHED_TICKS2NS(x) ((s64)(x) << PSCHED_SHIFT) +#define PSCHED_NS2TICKS(x) ((x) >> PSCHED_SHIFT) -#define PSCHED_TICKS_PER_SEC PSCHED_NS2US(NSEC_PER_SEC) +#define PSCHED_TICKS_PER_SEC PSCHED_NS2TICKS(NSEC_PER_SEC) #define PSCHED_PASTPERFECT 0 static inline psched_time_t psched_get_time(void) { - return PSCHED_NS2US(ktime_to_ns(ktime_get())); + return PSCHED_NS2TICKS(ktime_to_ns(ktime_get())); } static inline psched_tdiff_t @@ -64,40 +64,60 @@ struct qdisc_watchdog { struct Qdisc *qdisc; }; -extern void qdisc_watchdog_init(struct qdisc_watchdog *wd, struct Qdisc *qdisc); -extern void qdisc_watchdog_schedule(struct qdisc_watchdog *wd, - psched_time_t expires); -extern void qdisc_watchdog_cancel(struct qdisc_watchdog *wd); - -extern struct Qdisc_ops pfifo_qdisc_ops; -extern struct Qdisc_ops bfifo_qdisc_ops; +void qdisc_watchdog_init(struct qdisc_watchdog *wd, struct Qdisc *qdisc); +void qdisc_watchdog_schedule_ns(struct qdisc_watchdog *wd, u64 expires); -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 struct qdisc_rate_table *qdisc_get_rtab(struct tc_ratespec *r, - struct nlattr *tab); -extern void qdisc_put_rtab(struct qdisc_rate_table *tab); +static inline void qdisc_watchdog_schedule(struct qdisc_watchdog *wd, + psched_time_t expires) +{ + qdisc_watchdog_schedule_ns(wd, PSCHED_TICKS2NS(expires)); +} -extern void __qdisc_run(struct net_device *dev); +void qdisc_watchdog_cancel(struct qdisc_watchdog *wd); -static inline void qdisc_run(struct net_device *dev) +extern struct Qdisc_ops pfifo_qdisc_ops; +extern struct Qdisc_ops bfifo_qdisc_ops; +extern struct Qdisc_ops pfifo_head_drop_qdisc_ops; + +int fifo_set_limit(struct Qdisc *q, unsigned int limit); +struct Qdisc *fifo_create_dflt(struct Qdisc *sch, struct Qdisc_ops *ops, + unsigned int limit); + +int register_qdisc(struct Qdisc_ops *qops); +int unregister_qdisc(struct Qdisc_ops *qops); +void qdisc_get_default(char *id, size_t len); +int qdisc_set_default(const char *id); + +void qdisc_list_add(struct Qdisc *q); +void qdisc_list_del(struct Qdisc *q); +struct Qdisc *qdisc_lookup(struct net_device *dev, u32 handle); +struct Qdisc *qdisc_lookup_class(struct net_device *dev, u32 handle); +struct qdisc_rate_table *qdisc_get_rtab(struct tc_ratespec *r, + struct nlattr *tab); +void qdisc_put_rtab(struct qdisc_rate_table *tab); +void qdisc_put_stab(struct qdisc_size_table *tab); +void qdisc_warn_nonwc(const char *txt, struct Qdisc *qdisc); +int sch_direct_xmit(struct sk_buff *skb, struct Qdisc *q, + struct net_device *dev, struct netdev_queue *txq, + spinlock_t *root_lock); + +void __qdisc_run(struct Qdisc *q); + +static inline void qdisc_run(struct Qdisc *q) { - if (!netif_queue_stopped(dev) && - !test_and_set_bit(__LINK_STATE_QDISC_RUNNING, &dev->state)) - __qdisc_run(dev); + if (qdisc_run_begin(q)) + __qdisc_run(q); } -extern int tc_classify_compat(struct sk_buff *skb, struct tcf_proto *tp, - struct tcf_result *res); -extern int tc_classify(struct sk_buff *skb, struct tcf_proto *tp, +int tc_classify_compat(struct sk_buff *skb, const struct tcf_proto *tp, struct tcf_result *res); +int tc_classify(struct sk_buff *skb, const struct tcf_proto *tp, + struct tcf_result *res); /* Calculate maximal size of packet seen by hard_start_xmit routine of this device. */ -static inline unsigned psched_mtu(const struct net_device *dev) +static inline unsigned int psched_mtu(const struct net_device *dev) { return dev->mtu + dev->hard_header_len; } |