Phil Sutter <p...@nwl.cc> wrote:
> Signed-off-by: Phil Sutter <p...@nwl.cc>
> ---
>  net/Kconfig        | 12 ++++++++++++
>  net/ethernet/eth.c |  2 +-
>  2 files changed, 13 insertions(+), 1 deletion(-)
> 
> diff --git a/net/Kconfig b/net/Kconfig
> index 7021c1b..21c164f 100644
> --- a/net/Kconfig
> +++ b/net/Kconfig
> @@ -48,6 +48,18 @@ config COMPAT_NETLINK_MESSAGES
>  config NET_INGRESS
>       bool
>  
> +config DEFAULT_TX_QUEUE_LEN
> +     prompt "Default TX queue length (in packets)" if EXPERT
> +     int
> +     default 1000    # Ethernet wants good queues
> +     help
> +       Set the default value of tx_queue_len for newly created network
> +       interfaces. It is used by queueing disciplines to determine how many
> +       packets to keep in backlog before starting to drop new ones.
> +
> +       The default value of 1000 packets is there for a very long time and
> +       in combination with GSO way too big.
> +

I can't see how this could be used in a meaningful way.

No distro is going to touch this.

I don't think sysctl value would help either.
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