netdev - Re: [patch net-next v2 0/3] net/sched: Improve getting objects by indexes

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Message-Id: <20170830.143915.721461254974312457.davem@davemloft.net>
Date:   Wed, 30 Aug 2017 14:39:15 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     chrism@...lanox.com
Cc:     netdev@...r.kernel.org, jhs@...atatu.com, xiyou.wangcong@...il.com,
        jiri@...nulli.us, mawilcox@...rosoft.com
Subject: Re: [patch net-next v2 0/3] net/sched: Improve getting objects by
 indexes

From: Chris Mi <chrism@...lanox.com>
Date: Wed, 30 Aug 2017 02:31:56 -0400

> 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.
> 
> v2
> ==
> 
> Addressed Hannes's comment:
> express idr_alloc in terms of idr_alloc_ext and most of the other functions

Series applied, thanks.