netdev - Re: [net-next PATCH 1/2] net: pktgen: support injecting packets for qdisc testing

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Message-ID: <5776686B.5090204@mojatatu.com>
Date:	Fri, 1 Jul 2016 08:56:11 -0400
From:	Jamal Hadi Salim <jhs@...atatu.com>
To:	John Fastabend <john.fastabend@...il.com>, brouer@...hat.com
Cc:	netdev@...r.kernel.org
Subject: Re: [net-next PATCH 1/2] net: pktgen: support injecting packets for
 qdisc testing

On 16-06-30 12:53 PM, John Fastabend wrote:
> On 16-06-30 03:21 AM, Jamal Hadi Salim wrote:
>> On 16-06-29 03:47 PM, John Fastabend wrote:

>
> Taking a look at the link couple differences exist. First the patch
> linked does a 'netif_xmit_frozen_or_drv_stopped(txq)' check but this
> really shouldn't be needed it is handled by the sch_direct_xmit()
> logic in ./net/sched
>
> Also in this patch I made it way more conservative on when to back
> off then my original patch and now its closer to the one linked except
> I also back off with return code NET_XMIT_CN.
>
> As for clones what is the concern exactly? We allow them through the
> ingress pktgen mode that can hit classifiers and I don't see any issues
> testing with them.
>

I sent you that because we discussed back then and you thought
there was something different and useful.
I dont remember why it was important to avoid clones - maybe i had a
bug. I thought we discussed it (I will try to dig into the machine
used for testing).
Anyways, doesnt matter if you tested and it works fine.

cheers,
jamal