linux-kernel - Re: [PATCH] tilegx: fix some issues in the SW TSO support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1351187513.2662.9.camel@bwh-desktop.uk.solarflarecom.com>
Date:	Thu, 25 Oct 2012 18:51:53 +0100
From:	Ben Hutchings <bhutchings@...arflare.com>
To:	Chris Metcalf <cmetcalf@...era.com>
CC:	<netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] tilegx: fix some issues in the SW TSO support

On Thu, 2012-10-25 at 13:25 -0400, Chris Metcalf wrote:
> This change correctly computes the header length and data length in
> the fragments to avoid a bug where we would end up with extremely
> slow performance.  Also adopt use of skb_frag_size() accessor.
[...]

By the way, since you're doing soft-TSO you should probably set
net_device::gso_max_segs, as explained in:

commit 30b678d844af3305cda5953467005cebb5d7b687
Author: Ben Hutchings <bhutchings@...arflare.com>
Date:   Mon Jul 30 15:57:00 2012 +0000

    net: Allow driver to limit number of GSO segments per skb

Ben.

-- 
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/