On 11/29/2016 07:35 PM, Nikita Yushchenko wrote:
> Fec driver uses Rx buffers of 2k, but programs hardware to limit
> incoming frames to 1522 bytes. This raises issues when FEC device
> is used with DSA (since DSA tag can make frame larger), and also
> disallows manual sending and receiving larger
From: Nikita Yushchenko Sent: Wednesday,
November 30, 2016 2:35 AM
>To: David S. Miller ; Andy Duan
>; Troy Kisky ;
>Andrew Lunn ; Eric Nelson ; Philippe
>Reynes ; Johannes Berg ;
>net...@vger.kernel.org
>Cc: Chris Healy ; Fabio Estevam
>; linux-kernel@vger.kernel.org; Nikita
>Yushchenko
On 2016/11/30 15:36, Nikita Yushchenko wrote:
>> But I think it is not necessary since the driver don't support jumbo frame.
>
> Hardcoded 1522 raises two separate issues.
>
> (1) When DSA is in use, frames processed by FEC chip contain DSA tag and
> thus can be larger than hardcoded limit of 152
nel.org
>Subject: Re: [patch net / RFC] net: fec: increase frame size limitation to
>actually available buffer
>
>> But I think it is not necessary since the driver don't support jumbo frame.
>
>Hardcoded 1522 raises two separate issues.
>
>(1) When DSA is in use, fr
> But I think it is not necessary since the driver don't support jumbo frame.
Hardcoded 1522 raises two separate issues.
(1) When DSA is in use, frames processed by FEC chip contain DSA tag and
thus can be larger than hardcoded limit of 1522. This issue is not
FEC-specific, any driver that hardco
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