zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/include/net/pkt_sched.h b/ap/os/linux/linux-3.4.x/include/net/pkt_sched.h
new file mode 100644
index 0000000..fffdc60
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/include/net/pkt_sched.h
@@ -0,0 +1,115 @@
+#ifndef __NET_PKT_SCHED_H
+#define __NET_PKT_SCHED_H
+
+#include <linux/jiffies.h>
+#include <linux/ktime.h>
+#include <net/sch_generic.h>
+
+struct qdisc_walker {
+ int stop;
+ int skip;
+ int count;
+ int (*fn)(struct Qdisc *, unsigned long cl, struct qdisc_walker *);
+};
+
+#define QDISC_ALIGNTO 64
+#define QDISC_ALIGN(len) (((len) + QDISC_ALIGNTO-1) & ~(QDISC_ALIGNTO-1))
+
+static inline void *qdisc_priv(struct Qdisc *q)
+{
+ return (char *) q + QDISC_ALIGN(sizeof(struct Qdisc));
+}
+
+/*
+ Timer resolution MUST BE < 10% of min_schedulable_packet_size/bandwidth
+
+ Normal IP packet size ~ 512byte, hence:
+
+ 0.5Kbyte/1Mbyte/sec = 0.5msec, so that we need 50usec timer for
+ 10Mbit ethernet.
+
+ 10msec resolution -> <50Kbit/sec.
+
+ The result: [34]86 is not good choice for QoS router :-(
+
+ The things are not so bad, because we may use artificial
+ clock evaluated by integration of network data flow
+ in the most critical places.
+ */
+
+typedef u64 psched_time_t;
+typedef long psched_tdiff_t;
+
+/* 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_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()));
+}
+
+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;
+ 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;
+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 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 Qdisc *q);
+
+static inline void qdisc_run(struct Qdisc *q)
+{
+ if (qdisc_run_begin(q))
+ __qdisc_run(q);
+}
+
+extern int tc_classify_compat(struct sk_buff *skb, const struct tcf_proto *tp,
+ struct tcf_result *res);
+extern 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)
+{
+ return dev->mtu + dev->hard_header_len;
+}
+
+#endif