netdev - Re: [PATCH] Add sysctl to set the advertised TCP initial receive window.

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Message-ID: <1260313236.27677.163.camel@Joe-Laptop.home>
Date:	Tue, 08 Dec 2009 15:00:36 -0800
From:	Joe Perches <joe@...ches.com>
To:	chavey@...gle.com
Cc:	davem@...emloft.net, netdev@...r.kernel.org, therbert@...gle.com
Subject: Re: [PATCH] Add sysctl to set the advertised TCP initial receive
 window.

On Tue, 2009-12-08 at 14:40 -0800, chavey@...gle.com wrote:
> Add a sysctl, tcp_init_rcv_wnd, to set the TCP initial receive window
> size advertised by passive and active TCP connections. 
[]
> diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
> index 2dcf04d..85232fc 100644
> --- a/net/ipv4/sysctl_net_ipv4.c
> +++ b/net/ipv4/sysctl_net_ipv4.c
> @@ -656,6 +656,14 @@ static struct ctl_table ipv4_table[] = {
>  		.mode		= 0644,
>  		.proc_handler	= proc_dointvec
>  	},
> +	{
> +		.ctl_name	= CTL_UNNUMBERED,
> +		.procname	= "tcp_init_rcv_wnd",
> +		.data 		= &sysctl_tcp_init_rcv_wnd,
> +		.maxlen 	= sizeof(int),
> +		.mode 		= 0644,
> +		.proc_handler 	= &proc_dointvec,

		.proc_handler	= proc_dointvec_minmax,
		.extra1		= &zero,
		.extra2		= &SOMESTATIC_FOR_TCP_INIT_RCV_WND_MAX,

?


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