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pkt_sched: QFQ - quick fair queue scheduler

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This is an implementation of the Quick Fair Queue scheduler developed
by Fabio Checconi. The same algorithm is already implemented in ipfw
in FreeBSD. Fabio had an earlier version developed on Linux, I just
cleaned it up.  Thanks to Eric Dumazet for testing this under load.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
stephen hemminger
2011-04-04 05:30:58 +00:00
committed by David S. Miller
parent fc3e594124
commit 0545a30377
4 changed files with 1164 additions and 0 deletions
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15
include/linux/pkt_sched.h
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@@ -588,4 +588,19 @@ struct tc_sfb_xstats {
#define SFB_MAX_PROB 0xFFFF
/* QFQ */
enum {
TCA_QFQ_UNSPEC,
TCA_QFQ_WEIGHT,
TCA_QFQ_LMAX,
__TCA_QFQ_MAX
};
#define TCA_QFQ_MAX (__TCA_QFQ_MAX - 1)
struct tc_qfq_stats {
__u32 weight;
__u32 lmax;
};
#endif