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| author | Mohit P. Tahiliani <tahiliani@nitk.edu.in> | 2019-02-25 22:09:59 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-02-26 01:21:03 +0300 |
| commit | 3f7ae5f3dc5295ac17d6521130ed8a8f8a723fbf (patch) | |
| tree | 3529f45b5398596453548eac690b8808caa4090e /include | |
| parent | 30a92ad703b93a96588e05b5bcd7247d7350c673 (diff) | |
| download | linux-3f7ae5f3dc5295ac17d6521130ed8a8f8a723fbf.tar.xz | |
net: sched: pie: add more cases to auto-tune alpha and beta
The current implementation scales the local alpha and beta
variables in the calculate_probability function by the same
amount for all values of drop probability below 1%.
RFC 8033 suggests using additional cases for auto-tuning
alpha and beta when the drop probability is less than 1%.
In order to add more auto-tuning cases, MAX_PROB must be
scaled by u64 instead of u32 to prevent underflow when
scaling the local alpha and beta variables in the
calculate_probability function.
Signed-off-by: Mohit P. Tahiliani <tahiliani@nitk.edu.in>
Signed-off-by: Dhaval Khandla <dhavaljkhandla26@gmail.com>
Signed-off-by: Hrishikesh Hiraskar <hrishihiraskar@gmail.com>
Signed-off-by: Manish Kumar B <bmanish15597@gmail.com>
Signed-off-by: Sachin D. Patil <sdp.sachin@gmail.com>
Signed-off-by: Leslie Monis <lesliemonis@gmail.com>
Acked-by: Dave Taht <dave.taht@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/linux/pkt_sched.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/uapi/linux/pkt_sched.h b/include/uapi/linux/pkt_sched.h index 0d18b1d1fbbc..1eb572ef3f27 100644 --- a/include/uapi/linux/pkt_sched.h +++ b/include/uapi/linux/pkt_sched.h @@ -954,7 +954,7 @@ enum { #define TCA_PIE_MAX (__TCA_PIE_MAX - 1) struct tc_pie_xstats { - __u32 prob; /* current probability */ + __u64 prob; /* current probability */ __u32 delay; /* current delay in ms */ __u32 avg_dq_rate; /* current average dq_rate in bits/pie_time */ __u32 packets_in; /* total number of packets enqueued */ |