linux-kernel - Re: [PATCH net-next 06/14] ipvlan: Support GSO for port -> ipvlan

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Message-ID: <bd0da59d-153f-4930-851a-68117dbcc2de@huawei.com>
Date: Thu, 6 Nov 2025 18:41:42 +0300
From: Dmitry Skorodumov <skorodumov.dmitry@...wei.com>
To: Eric Dumazet <edumazet@...gle.com>
CC: <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<andrey.bokhanko@...wei.com>, Andrew Lunn <andrew+netdev@...n.ch>, "David S.
 Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni
	<pabeni@...hat.com>
Subject: Re: [PATCH net-next 06/14] ipvlan: Support GSO for port -> ipvlan

On 05.11.2025 19:58, Dmitry Skorodumov wrote:
> On 05.11.2025 19:29, Eric Dumazet wrote:
>> On Wed, Nov 5, 2025 at 8:15 AM Dmitry Skorodumov
>> <skorodumov.dmitry@...wei.com> wrote:
>>> If main port interface supports GSO, we need manually segment
>>> the skb before forwarding it to ipvlan interface.
>> Why ?

Hm, really, this patch is not needed at all. tap_handle_frame() already does everything needed. Looks like I had another trouble and this patch was an attempt to fix it.

>> Also I do not see any tests, for the whole series ?
> Ok, If modules like this have some kind of unit-tests, I should study it and provide it. I haven't seen this as a common practice for most of the modules here. So far all testing is made manually (likely this should be described anyway)

I see that currently there is no any tests for this ipvlan module (may be I missed something).. Do you have any ideas about tests? I'm a bit  confused at the moment: designing tests from scratch - this might be a bit tricky.

Or it is enough just describe test-cases I checked manually (in some of the patches of the series)?

Dmitry