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From: Jamal Hadi Salim <jhs@mojatatu•com>
To: Cong Wang <xiyou.wangcong@gmail•com>
Cc: Stephen Hemminger <stephen@networkplumber•org>,
	Linux Kernel Network Developers <netdev@vger•kernel.org>,
	David Miller <davem@davemloft•net>
Subject: Re: [Patch iproute2] u32: add terminal parameter
Date: Mon, 14 Apr 2014 19:14:38 -0400	[thread overview]
Message-ID: <534C6BDE.8020600@mojatatu.com> (raw)
In-Reply-To: <CAM_iQpXJnOOUbpS0WwrB7C50LGxcLhMEQPrDB84Zm-SLKVHh6w@mail.gmail.com>

On 04/14/14 17:18, Cong Wang wrote:
> On Sat, Apr 12, 2014 at 4:43 AM, Jamal Hadi Salim <jhs@mojatatu•com> wrote:

> Why? The qdisc my u32 filters attached to is classless (ingress).

flowid is a filter id. I am almost certain it was a mistake on your
part to leave it out. This is why i called it an FAQ and suggested
you provide a patch to block people from leaving it out.

> Also, why this is relevant to u32 terminal?

Because if you defined a flowid you are defining it as a terminal
u32 node. You wouldnt have to complain about "???" or produce a patch
to solve a non-existent problem.
You want to add a new syntax and didnt even bother to look at the code?

>> So I agree with Stephen on the verdict on your patch.
>> We need a patch to avoid this FAQ problem since it happens
>> often i.e reject a filter that doesnt have flow/classid
>> specified. How about you provide that patch instead?
>>
>
> Even if you were right, it is too late to change, we obviously don't
> want to break existing scripts that work fine. I am pretty sure
> my script runs well without flowid.
>

I dont think it can be guaranteed to work at all if you dont specify
a flowid. You may have gotten lucky.

cheers,
jamal

  reply	other threads:[~2014-04-14 23:14 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-04 17:17 [Patch iproute2] u32: add terminal parameter Cong Wang
2014-04-11 21:04 ` Stephen Hemminger
2014-04-12  0:45   ` Cong Wang
2014-04-12  0:58     ` Stephen Hemminger
2014-04-12  1:15       ` Cong Wang
2014-04-12 11:43         ` Jamal Hadi Salim
2014-04-14 21:18           ` Cong Wang
2014-04-14 23:14             ` Jamal Hadi Salim [this message]
2014-04-15  1:57               ` Cong Wang
2014-04-15 13:00                 ` Jamal Hadi Salim
2014-04-15 20:17                   ` Cong Wang
2014-04-16 12:19                     ` Jamal Hadi Salim

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