Release 4.7 include/net/pkt_sched.h
#ifndef __NET_PKT_SCHED_H
#define __NET_PKT_SCHED_H
#include <linux/jiffies.h>
#include <linux/ktime.h>
#include <linux/if_vlan.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));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| thomas graf | thomas graf | 22 | 75.86% | 2 | 50.00% |
| pre-git | pre-git | 7 | 24.14% | 2 | 50.00% |
| Total | 29 | 100.00% | 4 | 100.00% |
/*
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_get_ns());
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| patrick mchardy | patrick mchardy | 14 | 87.50% | 1 | 33.33% |
| eric dumazet | eric dumazet | 1 | 6.25% | 1 | 33.33% |
| jarek poplawski | jarek poplawski | 1 | 6.25% | 1 | 33.33% |
| Total | 16 | 100.00% | 3 | 100.00% |
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);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| patrick mchardy | patrick mchardy | 19 | 73.08% | 1 | 33.33% |
| stephen hemminger | stephen hemminger | 4 | 15.38% | 1 | 33.33% |
| thomas graf | thomas graf | 3 | 11.54% | 1 | 33.33% |
| Total | 26 | 100.00% | 3 | 100.00% |
struct qdisc_watchdog {
u64 last_expires;
struct hrtimer timer;
struct Qdisc *qdisc;
};
void qdisc_watchdog_init(struct qdisc_watchdog *wd, struct Qdisc *qdisc);
void qdisc_watchdog_schedule_ns(struct qdisc_watchdog *wd, u64 expires, bool throttle);
static inline void qdisc_watchdog_schedule(struct qdisc_watchdog *wd,
psched_time_t expires)
{
qdisc_watchdog_schedule_ns(wd, PSCHED_TICKS2NS(expires), true);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| jiri pirko | jiri pirko | 25 | 92.59% | 1 | 50.00% |
| eric dumazet | eric dumazet | 2 | 7.41% | 1 | 50.00% |
| Total | 27 | 100.00% | 2 | 100.00% |
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;
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, bool validate);
void __qdisc_run(struct Qdisc *q);
static inline void qdisc_run(struct Qdisc *q)
{
if (qdisc_run_begin(q))
__qdisc_run(q);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| patrick mchardy | patrick mchardy | 11 | 45.83% | 1 | 20.00% |
| david s. miller | david s. miller | 7 | 29.17% | 2 | 40.00% |
| herbert xu | herbert xu | 5 | 20.83% | 1 | 20.00% |
| eric dumazet | eric dumazet | 1 | 4.17% | 1 | 20.00% |
| Total | 24 | 100.00% | 5 | 100.00% |
int tc_classify(struct sk_buff *skb, const struct tcf_proto *tp,
struct tcf_result *res, bool compat_mode);
static inline __be16 tc_skb_protocol(const struct sk_buff *skb)
{
/* We need to take extra care in case the skb came via
* vlan accelerated path. In that case, use skb->vlan_proto
* as the original vlan header was already stripped.
*/
if (skb_vlan_tag_present(skb))
return skb->vlan_proto;
return skb->protocol;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| jiri pirko | jiri pirko | 31 | 100.00% | 2 | 100.00% |
| Total | 31 | 100.00% | 2 | 100.00% |
/* Calculate maximal size of packet seen by hard_start_xmit
routine of this device.
*/
static inline unsigned int psched_mtu(const struct net_device *dev)
{
return dev->mtu + dev->hard_header_len;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| pre-git | pre-git | 21 | 91.30% | 3 | 60.00% |
| stephen hemminger | stephen hemminger | 1 | 4.35% | 1 | 20.00% |
| eric dumazet | eric dumazet | 1 | 4.35% | 1 | 20.00% |
| Total | 23 | 100.00% | 5 | 100.00% |
#endif
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| pre-git | pre-git | 160 | 27.83% | 6 | 12.77% |
| patrick mchardy | patrick mchardy | 137 | 23.83% | 8 | 17.02% |
| thomas graf | thomas graf | 65 | 11.30% | 3 | 6.38% |
| jiri pirko | jiri pirko | 61 | 10.61% | 3 | 6.38% |
| jarek poplawski | jarek poplawski | 33 | 5.74% | 5 | 10.64% |
| krishna kumar | krishna kumar | 28 | 4.87% | 1 | 2.13% |
| stephen hemminger | stephen hemminger | 25 | 4.35% | 3 | 6.38% |
| eric dumazet | eric dumazet | 25 | 4.35% | 9 | 19.15% |
| david s. miller | david s. miller | 9 | 1.57% | 2 | 4.26% |
| jussi kivilinna | jussi kivilinna | 9 | 1.57% | 1 | 2.13% |
| herbert xu | herbert xu | 7 | 1.22% | 1 | 2.13% |
| jamal hadi salim | jamal hadi salim | 6 | 1.04% | 1 | 2.13% |
| hagen paul pfeifer | hagen paul pfeifer | 5 | 0.87% | 1 | 2.13% |
| daniel borkmann | daniel borkmann | 3 | 0.52% | 1 | 2.13% |
| lucas de marchi | lucas de marchi | 1 | 0.17% | 1 | 2.13% |
| florian westphal | florian westphal | 1 | 0.17% | 1 | 2.13% |
| Total | 575 | 100.00% | 47 | 100.00% |
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