netdev - Re: [patch net-next v2 00/20] net: sched: convert cls ndo_setup

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Date:   Tue, 24 Oct 2017 20:03:59 +0300
From:   Or Gerlitz <gerlitz.or@...il.com>
To:     Alexander Duyck <alexander.duyck@...il.com>
Cc:     David Miller <davem@...emloft.net>, Jiri Pirko <jiri@...nulli.us>,
        Netdev <netdev@...r.kernel.org>,
        Jamal Hadi Salim <jhs@...atatu.com>,
        Cong Wang <xiyou.wangcong@...il.com>,
        mlxsw <mlxsw@...lanox.com>, Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...oirfairelinux.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Michael Chan <michael.chan@...adcom.com>,
        Ganesh Goudar <ganeshgr@...lsio.com>,
        Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
        Saeed Mahameed <saeedm@...lanox.com>,
        Matan Barak <matanb@...lanox.com>,
        Leon Romanovsky <leonro@...lanox.com>,
        Ido Schimmel <idosch@...lanox.com>,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Simon Horman <simon.horman@...ronome.com>,
        Pieter Jansen van Vuuren 
        <pieter.jansenvanvuuren@...ronome.com>,
        John Hurley <john.hurley@...ronome.com>,
        "Duyck, Alexander H" <alexander.h.duyck@...el.com>,
        Amritha Nambiar <amritha.nambiar@...el.com>
Subject: Re: [patch net-next v2 00/20] net: sched: convert cls ndo_setup_tc
 offload calls to per-block callbacks

On Tue, Oct 24, 2017 at 8:02 PM, Or Gerlitz <gerlitz.or@...il.com> wrote:
> On Tue, Oct 24, 2017 at 7:24 PM, Alexander Duyck <alexander.duyck@...il.com> wrote:
>> On Tue, Oct 24, 2017 at 9:01 AM, Alexander Duyck <alexander.duyck@...il.com> wrote:

>>> We are getting internal reports of regressions being seen with this
>>> patch set applied. Specifically the issues below have been pointed out
>>> to me. My understanding is that these issues are all being reported on ixgbe:

>>> 1.       To offload filter into HW, the hw-tc-offload feature flag has
>>> to be turned on before creating the ingress qdisc.

>>> 2.       Deleting the ingress qdisc fails to remove filters added in
>>> HW. Filters in SW gets deleted.

> FWIW, I don't think this is what you're hitting, but please note there are
> two  fixes  to the series in net-next
>
> 9d452ce net/sched: Fix actions list corruption when adding offloaded tc flows
> 0843c09 net/sched: Set the net-device for egress device instance
>
> I had to looked on other stuff today, but I will keep stressing see if/what
> is broken w.r.t mlx5
> and help to get things to work later this and next week so by netdev we'll
> be fine
>
> Or.