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From: Stephen Hemminger <shemminger@vyatta.com>
To: chavey@google.com
Cc: davem@davemloft.net, netdev@vger.kernel.org, therbert@google.com,
	chavey@google.com, joe@perches.com, eric.dumazet@gmail.com
Subject: Re: [PATCH] Add sysctl to set the advertised TCP initial receive window.
Date: Thu, 10 Dec 2009 08:57:19 -0800	[thread overview]
Message-ID: <20091210085719.4dae2bce@nehalam> (raw)
In-Reply-To: <pvmfx7jbn2h.fsf@chavey.mtv.corp.google.com>

On Wed, 09 Dec 2009 18:05:42 -0800
chavey@google.com wrote:

> @@ -221,6 +222,7 @@ struct tcp_options_received {
>  	u8	num_sacks;	/* Number of SACK blocks		*/
>  	u16	user_mss;  	/* mss requested by user in ioctl */
>  	u16	mss_clamp;	/* Maximal mss, negotiated at connection setup */
> +	u8	init_rcv_wnd;	/* TCP initial receive window in MSS */
>  };

You could use the hole in the structure:

                snd_wscale : 4, /* Window scaling received from sender  */
                rcv_wscale : 4; /* Window scaling to send to receiver   */
+	u8	init_rcv_wnd;	/* TCP initial receive window in MSS */
/*      SACKs data      */
        u8      num_sacks;      /* Number of SACK blocks        

  reply	other threads:[~2009-12-10 16:57 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-12-10  2:05 [PATCH] Add sysctl to set the advertised TCP initial receive window chavey
2009-12-10 16:57 ` Stephen Hemminger [this message]
2009-12-10 18:55   ` Joe Perches
2009-12-13  3:27 ` Eric W. Biederman
  -- strict thread matches above, loose matches on Subject: below --
2009-12-09 20:13 chavey
2009-12-09 20:33 ` Eric Dumazet
2009-12-09 20:55   ` Joe Perches
2009-12-09 21:11     ` Eric Dumazet
2009-12-09  0:30 chavey
2009-12-09  0:59 ` Joe Perches
2009-12-08 22:40 chavey
2009-12-08 23:00 ` Joe Perches
2009-12-09 13:26 ` Andi Kleen
2009-12-09 18:05   ` Tom Herbert
     [not found]   ` <65634d660912091001s44016cccq4f2422e613ba9db9@mail.gmail.com>
2009-12-10  2:21     ` David Miller
2009-12-10 21:55       ` Laurent Chavey

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