Merge branch 'perf/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic...

[safe/jmp/linux-2.6] / include / net / pkt_sched.h

diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h
index 6555e57..b6cdc33 100644 (file)
--- a/include/net/pkt_sched.h
+++ b/include/net/pkt_sched.h
@@ -5,16 +5,13 @@
 #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 *);
 };
 
-extern rwlock_t qdisc_tree_lock;
-
 #define QDISC_ALIGNTO          32
 #define QDISC_ALIGN(len)       (((len) + QDISC_ALIGNTO-1) & ~(QDISC_ALIGNTO-1))
 
@@ -43,23 +40,24 @@ 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_GET_TIME(stamp) \
-       ((stamp) = PSCHED_NS2US(ktime_to_ns(ktime_get())))
+#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_NS2TICKS(ktime_to_ns(ktime_get()));
+}
 
-#define PSCHED_TDIFF(tv1, tv2)         (long)((tv1) - (tv2))
-#define PSCHED_TDIFF_SAFE(tv1, tv2, bound) \
-                                       min_t(long long, (tv1) - (tv2), bound)
-#define PSCHED_TLESS(tv1, tv2)         ((tv1) < (tv2))
-#define PSCHED_TADD2(tv, delta, tv_res) ((tv_res) = (tv) + (delta))
-#define PSCHED_TADD(tv, delta)         ((tv) += (delta))
-#define PSCHED_SET_PASTPERFECT(t)      ((t) = 0)
-#define PSCHED_IS_PASTPERFECT(t)       ((t) == 0)
-#define        PSCHED_AUDIT_TDIFF(t)
+static inline psched_tdiff_t
+psched_tdiff_bounded(psched_time_t tv1, psched_time_t tv2, psched_time_t bound)
+{
+       return min(tv1 - tv2, bound);
+}
 
 struct qdisc_watchdog {
        struct hrtimer  timer;
@@ -73,34 +71,45 @@ extern void qdisc_watchdog_cancel(struct qdisc_watchdog *wd);
 
 extern struct Qdisc_ops pfifo_qdisc_ops;
 extern struct Qdisc_ops bfifo_qdisc_ops;
+extern struct Qdisc_ops pfifo_head_drop_qdisc_ops;
+
+extern int fifo_set_limit(struct Qdisc *q, unsigned int limit);
+extern struct Qdisc *fifo_create_dflt(struct Qdisc *sch, struct Qdisc_ops *ops,
+                                     unsigned int limit);
 
 extern int register_qdisc(struct Qdisc_ops *qops);
 extern int unregister_qdisc(struct Qdisc_ops *qops);
+extern void qdisc_list_del(struct Qdisc *q);
 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 rtattr *tab);
+               struct nlattr *tab);
 extern void qdisc_put_rtab(struct qdisc_rate_table *tab);
+extern void qdisc_put_stab(struct qdisc_size_table *tab);
+extern void qdisc_warn_nonwc(char *txt, struct Qdisc *qdisc);
+extern int sch_direct_xmit(struct sk_buff *skb, struct Qdisc *q,
+                          struct net_device *dev, struct netdev_queue *txq,
+                          spinlock_t *root_lock);
 
-extern void __qdisc_run(struct net_device *dev);
+extern void __qdisc_run(struct Qdisc *q);
 
-static inline void qdisc_run(struct net_device *dev)
+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 (!test_and_set_bit(__QDISC_STATE_RUNNING, &q->state))
+               __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,
-       struct tcf_result *res);
+                      struct tcf_result *res);
 
 /* Calculate maximal size of packet seen by hard_start_xmit
    routine of this device.
  */
-static inline unsigned psched_mtu(struct net_device *dev)
+static inline unsigned psched_mtu(const struct net_device *dev)
 {
-       unsigned mtu = dev->mtu;
-       return dev->hard_header ? mtu + dev->hard_header_len : mtu;
+       return dev->mtu + dev->hard_header_len;
 }
 
 #endif