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author | Nishanth Devarajan <ndev2021@gmail.com> | 2018-07-23 19:37:41 +0530 |
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committer | David S. Miller <davem@davemloft.net> | 2018-07-24 14:44:00 -0700 |
commit | aea5f654e6b78a0c976f7a25950155932c77a53f (patch) | |
tree | d67053f9a2ec1a7a8a379e7480626be85a7e4cf2 /include/linux/mlx5/driver.h | |
parent | b8f8c8eb408b36ad55dd41a616b3f51998880fb6 (diff) | |
download | linux-aea5f654e6b78a0c976f7a25950155932c77a53f.tar.gz linux-aea5f654e6b78a0c976f7a25950155932c77a53f.tar.bz2 linux-aea5f654e6b78a0c976f7a25950155932c77a53f.zip |
net/sched: add skbprio scheduler
Skbprio (SKB Priority Queue) is a queueing discipline that prioritizes packets
according to their skb->priority field. Under congestion, already-enqueued lower
priority packets will be dropped to make space available for higher priority
packets. Skbprio was conceived as a solution for denial-of-service defenses that
need to route packets with different priorities as a means to overcome DoS
attacks.
v5
*Do not reference qdisc_dev(sch)->tx_queue_len for setting limit. Instead set
default sch->limit to 64.
v4
*Drop Documentation/networking/sch_skbprio.txt doc file to move it to tc man
page for Skbprio, in iproute2.
v3
*Drop max_limit parameter in struct skbprio_sched_data and instead use
sch->limit.
*Reference qdisc_dev(sch)->tx_queue_len only once, during initialisation for
qdisc (previously being referenced every time qdisc changes).
*Move qdisc's detailed description from in-code to Documentation/networking.
*When qdisc is saturated, enqueue incoming packet first before dequeueing
lowest priority packet in queue - improves usage of call stack registers.
*Introduce and use overlimit stat to keep track of number of dropped packets.
v2
*Use skb->priority field rather than DS field. Rename queueing discipline as
SKB Priority Queue (previously Gatekeeper Priority Queue).
*Queueing discipline is made classful to expose Skbprio's internal priority
queues.
Signed-off-by: Nishanth Devarajan <ndev2021@gmail.com>
Reviewed-by: Sachin Paryani <sachin.paryani@gmail.com>
Reviewed-by: Cody Doucette <doucette@bu.edu>
Reviewed-by: Michel Machado <michel@digirati.com.br>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/mlx5/driver.h')
0 files changed, 0 insertions, 0 deletions