linux-kernel - Re: [PATCH 06/13] IB/ehca: Set SEND_GRH flag for all non-LL UD QPs on eHCA2

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Message-ID: <OF42327D02.A1FE96AF-ONC1257314.003E9788-C1257314.003EE7E8@de.ibm.com>
Date:	Tue, 10 Jul 2007 13:26:10 +0200
From:	Joachim Fenkes <FENKES@...ibm.com>
To:	Roland Dreier <rdreier@...co.com>
Cc:	Christoph Raisch <raisch@...ibm.com>,
	"OF-General" <general@...ts.openfabrics.org>,
	Hoang-Nam Nguyen <hnguyen@...ibm.com>,
	LKML <linux-kernel@...r.kernel.org>,
	"LinuxPPC-Dev" <linuxppc-dev@...abs.org>,
	Roland Dreier <rolandd@...co.com>,
	Stefan Roscher <stefan.roscher@...ibm.com>
Subject: Re: [PATCH 06/13] IB/ehca: Set SEND_GRH flag for all non-LL UD QPs on eHCA2

Roland Dreier <rdreier@...co.com> wrote on 09.07.2007 23:35:31:

> Out of curiousity, does this mean that a GRH will be sent on all UD
> messages (for non-LL QPs)?

No - the bit instructs the hardware to fetch the GRH parts of the QP 
context.
The GRH will only be used if the WQE says so.

Joachim
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