From: Thomas Monjalon <thomas.monjalon-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
To: Konstantin Ananyev
<konstantin.ananyev-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: dev-VfR2kkLFssw@public.gmane.org
Subject: Re: [PATCH] librte_net: fix TX checksum offload problem with IPv6 packet.
Date: Wed, 17 Dec 2014 00:56:35 +0100 [thread overview]
Message-ID: <6854580.rpBbEFEqVn@xps13> (raw)
In-Reply-To: <54898F06.2060503-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
> > For rte_ipv6_phdr_cksum() gcc 4.8.* with "-O3" not always generates
> > correct code.
> > Sometimes it 'forgets' to put len and proto fields of psd_header on the stack.
> > To overcome that problem and speedup things a bit, refactored rte_raw_cksum()
> > by splitting ipv6 pseudo-header csum calculation into 3 phases:
> > 1. calc sum for src & dst addresses
> > 2. add sum for proto & len.
> > 3. finalise sum
> > That makes gcc to generate valid code and helps to avoid any copying.
> >
> > Signed-off-by: Konstantin Ananyev <konstantin.ananyev-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
>
> Acked-by: Olivier Matz <olivier.matz-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
Applied
Thanks
--
Thomas
prev parent reply other threads:[~2014-12-16 23:56 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-11 11:49 [PATCH] librte_net: fix TX checksum offload problem with IPv6 packet Konstantin Ananyev
[not found] ` <1418298582-6953-1-git-send-email-konstantin.ananyev-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2014-12-11 12:33 ` Olivier MATZ
[not found] ` <54898F06.2060503-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
2014-12-16 23:56 ` Thomas Monjalon [this message]
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