linux-kernel - Re: [bug, bisected] pfifo_fast causes packet reordering

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Date:   Thu, 22 Mar 2018 11:16:08 +0100
From:   Jakob Unterwurzacher <jakob.unterwurzacher@...obroma-systems.com>
To:     John Fastabend <john.fastabend@...il.com>,
        Dave Taht <dave.taht@...il.com>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>,
        "linux-can@...r.kernel.org" <linux-can@...r.kernel.org>,
        Martin Elshuber <martin.elshuber@...obroma-systems.com>
Subject: Re: [bug, bisected] pfifo_fast causes packet reordering

On 21.03.18 21:52, John Fastabend wrote:
> Can you try this,
> 
> diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
> index d4907b5..1e596bd 100644
> --- a/include/net/sch_generic.h
> +++ b/include/net/sch_generic.h
> @@ -30,6 +30,7 @@ struct qdisc_rate_table {
>   enum qdisc_state_t {
>          __QDISC_STATE_SCHED,
>          __QDISC_STATE_DEACTIVATED,
> +       __QDISC_STATE_RUNNING,
>   };
> [...]

Tested, looks good. No OOO observed, no side effects observed, iperf 
numbers on Gigabit Ethernet look the same.

Thanks,
Jakob