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[PKT_SCHED] netem: allow random reordering (with fix)

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Here is a fixed up version of the reorder feature of netem.
It is the same as the earlier patch plus with the bugfix from Julio merged in.
Has expected backwards compatibility behaviour.

Go ahead and merge this one, the TCP strangeness I was seeing was due
to the reordering bug, and previous version of TSO patch.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stephen Hemminger 2005-05-26 12:55:48 -07:00 • committed by David S. Miller
parent 0f9f32ac65
commit 0dca51d362
2 changed files with 50 additions and 13 deletions
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9
include/linux/pkt_sched.h
View file

@ -427,6 +427,7 @@ enum
TCA_NETEM_UNSPEC,
TCA_NETEM_CORR,
TCA_NETEM_DELAY_DIST,
TCA_NETEM_REORDER,
__TCA_NETEM_MAX,
};
@ -437,7 +438,7 @@ struct tc_netem_qopt
__u32 latency; /* added delay (us) */
__u32 limit; /* fifo limit (packets) */
__u32 loss; /* random packet loss (0=none ~0=100%) */
__u32 gap; /* re-ordering gap (0 for delay all) */
__u32 gap; /* re-ordering gap (0 for none) */
__u32 duplicate; /* random packet dup (0=none ~0=100%) */
__u32 jitter; /* random jitter in latency (us) */
};
@ -449,6 +450,12 @@ struct tc_netem_corr
__u32 dup_corr; /* duplicate correlation */
};
struct tc_netem_reorder
{
__u32 probability;
__u32 correlation;
};
#define NETEM_DIST_SCALE 8192
#endif