netdev - Re: [PATCH] User mode linux bump maximum MTU tuntap interface [RESAND]

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Message-ID: <CAFLxGvytDC1TFdT0m9vvijz_93B8TziWURcR-3mskWB-7TzFag@mail.gmail.com>
Date:   Tue, 2 Jul 2019 16:40:03 +0200
From:   Richard Weinberger <richard.weinberger@...il.com>
To:     Алексей <ne-vlezay80@...dex.ru>
Cc:     netdev@...r.kernel.org, linux-um@...ts.infradead.org,
        Anton Ivanov <anton.ivanov@...bridgegreys.com>
Subject: Re: [PATCH] User mode linux bump maximum MTU tuntap interface [RESAND]

CC'ing um folks.

On Tue, Jul 2, 2019 at 3:01 PM Алексей <ne-vlezay80@...dex.ru> wrote:
>
> Hello, the parameter  ETH_MAX_PACKET limited to 1500 bytes is the not
> support jumbo frames.
>
> This patch change ETH_MAX_PACKET the 65535 bytes to jumbo frame support
> with user mode linux tuntap driver.
>
>
> PATCH:
>
> -------------------
>
>
> diff -ruNP ../linux_orig/linux-5.1/arch/um/include/shared/net_user.h
> ./arch/um/include/shared/net_user.h
> --- a/arch/um/include/shared/net_user.h    2019-05-06 00:42:58.000000000
> +0000
> +++ b/arch/um/include/shared/net_user.h    2019-07-02 07:14:13.593333356
> +0000
> @@ -9,7 +9,7 @@
>  #define ETH_ADDR_LEN (6)
>  #define ETH_HEADER_ETHERTAP (16)
>  #define ETH_HEADER_OTHER (26) /* 14 for ethernet + VLAN + MPLS for
> crazy people */
> -#define ETH_MAX_PACKET (1500)
> +#define ETH_MAX_PACKET (65535)
>
>  #define UML_NET_VERSION (4)
>
> -------------------
>
>


-- 
Thanks,
//richard