netdev - Re: [PATCH net-next v2 10/10] bnxt_en: Implement .ndo_features

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Message-ID: <CACKFLi=b7+aPufxmdi9oTSbXgUmCYjhFMrVWYXrDOvQxNoGV4g@mail.gmail.com>
Date:   Mon, 26 Apr 2021 10:52:47 -0700
From:   Michael Chan <michael.chan@...adcom.com>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     David Miller <davem@...emloft.net>,
        Netdev <netdev@...r.kernel.org>,
        Andrew Gospodarek <gospo@...adcom.com>
Subject: Re: [PATCH net-next v2 10/10] bnxt_en: Implement .ndo_features_check().

On Mon, Apr 26, 2021 at 10:36 AM Jakub Kicinski <kuba@...nel.org> wrote:
>
> On Mon, 26 Apr 2021 10:09:29 -0700 Michael Chan wrote:
> > On Mon, Apr 26, 2021 at 10:00 AM Jakub Kicinski <kuba@...nel.org> wrote:
> > > On Mon, 26 Apr 2021 09:45:17 -0700 Michael Chan wrote:
> > > > Sorry, hit send too early.  If it is not UDP, it could be GRE or IP
> > > > over IP for example, right?  Why do we need to turn off offload?
> > >
> > > All supported protocols can be included in the allow list.
> > > That's one of the costs of NETIF_F_IP_CSUM, the driver needs
> > > to make sure the device can understand the packet.
> >
> > Only UDP encapsulations have the 2 port limitations.  The rest are supported.
>
> AFAIU you claim that other than certain UDP formats your device can
> parse _every_ possible packet encapsulation. To which I have no reply.

Fair enough.  I'll get the list of supported encapsulations and check
for all supported types.

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