linux-kernel - Re: Dropping NETIF_F_SG since no checksum feature.

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Message-Id: <20061010.205049.132929620.davem@davemloft.net>
Date:	Tue, 10 Oct 2006 20:50:49 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	rdreier@...co.com
Cc:	mst@...lanox.co.il, shemminger@...l.org,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	openib-general@...nib.org, rolandd@...co.com
Subject: Re: Dropping NETIF_F_SG since no checksum feature.

From: Roland Dreier <rdreier@...co.com>
Date: Tue, 10 Oct 2006 20:49:09 -0700

>     David> non-sendfile() paths will generate big packets just fine,
>     David> as long as the application is providing that much data.
> 
> OK, cool.  Will the big packets be non-linear skbs?

If you had SG enabled (and thus checksumming offload too) then yes
you'll get a non-linear SKB.  Otherwise, without SG, you'll get a
fully linear SKB.
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