From: Erwan Velu <e.velu@criteo.com>
To: Brett Creeley <bcreeley@amd.com>, Erwan Velu <erwanaliasr1@gmail.com>
Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>,
Tony Nguyen <anthony.l.nguyen@intel.com>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v4 iwl-net] i40e: Prevent setting MTU if greater than MFS
Date: Thu, 14 Mar 2024 19:04:17 +0100 [thread overview]
Message-ID: <7b612db6-cec6-4873-8a38-fb4c97192aa2@criteo.com> (raw)
In-Reply-To: <d16ff01c-4a01-4871-93de-a5c26a352301@amd.com>
Le 14/03/2024 à 18:55, Brett Creeley a écrit :
> [...]
> AFAIK there is no API for a user to change the max_mtu, so the only way
> the device's MFS would need to change is if it's done during
> initialization time, which should be done before netdev registration
> anyway.
Sorry Brett, I was probably unclear and please note that I'm not a
network developer, just a user that faced a bug.
My initial though was to check the mfs size in i40e_change_mtu() and if
mfs is too small, then let's increase it.
Maybe just resetting it at init time to the largest value (which seems
to be the default fw behavior) is a best approach.
I'd love to ear from Intel dev that knows this driver/cards/fw better on
what's the best approach here.
Erwan,
next prev parent reply other threads:[~2024-03-14 18:04 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-13 9:07 [PATCH v4 iwl-net] i40e: Prevent setting MTU if greater than MFS Erwan Velu
2024-03-14 16:10 ` Brett Creeley
2024-03-14 17:10 ` Erwan Velu
2024-03-14 17:55 ` Brett Creeley
2024-03-14 18:04 ` Erwan Velu [this message]
2024-03-14 20:31 ` Tony Nguyen
2024-03-15 9:17 ` Erwan Velu
2024-03-15 16:19 ` Brett Creeley
2024-03-18 17:45 ` Simon Horman
2024-03-19 10:26 ` Sunil Kovvuri Goutham
[not found] ` <d33b98de-dfc0-445e-bdd7-0ae76d050ed4@criteo.com>
2024-03-19 12:20 ` Simon Horman
2024-03-19 13:33 ` Erwan Velu
2024-04-19 14:26 ` [Intel-wired-lan] " Pucha, HimasekharX Reddy
[not found] ` <CAL2JzuxraP5xCxt4_EK3zbz9kyAyxJFuEadtq4zHsdMjR5PGTw@mail.gmail.com>
2024-04-22 13:19 ` Pucha, HimasekharX Reddy
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