netdev - [patch net-next 0/3] net/sched: Improve getting objects by indexes

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Date:   Mon, 28 Aug 2017 02:41:14 -0400
From:   Chris Mi <chrism@...lanox.com>
To:     netdev@...r.kernel.org
Cc:     jhs@...atatu.com, xiyou.wangcong@...il.com, jiri@...nulli.us,
        davem@...emloft.net, mawilcox@...rosoft.com
Subject: [patch net-next 0/3] net/sched: Improve getting objects by indexes

Using current TC code, it is very slow to insert a lot of rules.

In order to improve the rules update rate in TC,
we introduced the following two changes:
        1) changed cls_flower to use IDR to manage the filters.
        2) changed all act_xxx modules to use IDR instead of
           a small hash table

But IDR has a limitation that it uses int. TC handle uses u32.
To make sure there is no regression, we add several new IDR APIs
to support unsigned long.

Chris Mi (3):
  idr: Add new APIs to support unsigned long
  net/sched: Change cls_flower to use IDR
  net/sched: Change act_api and act_xxx modules to use IDR

 include/linux/idr.h        |  16 +++
 include/linux/radix-tree.h |   3 +
 include/net/act_api.h      |  76 +++++---------
 lib/idr.c                  |  56 ++++++++++
 lib/radix-tree.c           |  73 +++++++++++++
 net/sched/act_api.c        | 251 ++++++++++++++++++++++-----------------------
 net/sched/act_bpf.c        |  17 ++-
 net/sched/act_connmark.c   |  16 ++-
 net/sched/act_csum.c       |  16 ++-
 net/sched/act_gact.c       |  16 ++-
 net/sched/act_ife.c        |  20 ++--
 net/sched/act_ipt.c        |  26 +++--
 net/sched/act_mirred.c     |  19 ++--
 net/sched/act_nat.c        |  16 ++-
 net/sched/act_pedit.c      |  18 ++--
 net/sched/act_police.c     |  18 ++--
 net/sched/act_sample.c     |  17 ++-
 net/sched/act_simple.c     |  20 ++--
 net/sched/act_skbedit.c    |  18 ++--
 net/sched/act_skbmod.c     |  18 ++--
 net/sched/act_tunnel_key.c |  20 ++--
 net/sched/act_vlan.c       |  22 ++--
 net/sched/cls_flower.c     |  55 +++++-----
 23 files changed, 450 insertions(+), 377 deletions(-)

-- 
1.8.3.1