From: Jon Mason <jdmason@us.ibm.com>
To: Jeff Garzik <jgarzik@pobox.com>
Cc: Francois Romieu <romieu@fr.zoreil.com>, netdev@oss.sgi.com
Subject: Re: [PATCH 1/2] r8169: Jumbo Frames mini-increase
Date: Mon, 28 Feb 2005 14:56:24 -0600 [thread overview]
Message-ID: <200502281456.24200.jdmason@us.ibm.com> (raw)
In-Reply-To: <42237CDC.4060408@pobox.com>
On Monday 28 February 2005 02:19 pm, Jeff Garzik wrote:
> Random comment.
>
> I think it's terribly cute that the max packet size is 8169. Why not
> represent that in decimal, as opposed to hexidecimal?
>
> Jeff
It actually random that it is 8169. Jumbo Frames MTU in r8169 is dependent on
the rx_buf_sz. In the 8169 case, the rx_buf_sz is actually 8191 - (ETH_HDR +
VLAN_HDR + CRC). Any rx_buf_sz > 8191 is split up into multiple descriptors,
which is proving to be a bit tricky.
--
Jon Mason
jdmason@us.ibm.com
prev parent reply other threads:[~2005-02-28 20:56 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-26 17:11 [PATCH]: r8169: Message level support Richard Dawe
2005-02-26 20:35 ` Francois Romieu
2005-02-26 21:20 ` Jeff Garzik
2005-02-27 22:43 ` Richard Dawe
2005-02-27 23:52 ` Francois Romieu
2005-02-28 17:27 ` [PATCH 1/2] r8169: Jumbo Frames mini-increase Jon Mason
2005-02-28 19:32 ` Francois Romieu
2005-02-28 19:41 ` Jon Mason
2005-02-28 20:19 ` Jeff Garzik
2005-02-28 20:56 ` Jon Mason [this message]
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