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From: Roland Dreier <rdreier@cisco.com>
To: Stefan Roscher <ossrosch@linux.vnet.ibm.com>
Subject: Re: [PATCH REPOST] IB/ehca: In case of lost interrupts,
	trigger EOI to reenable interrupts
References: <200806101644.34693.ossrosch@linux.vnet.ibm.com>
Date: Tue, 10 Jun 2008 07:52:57 -0700
In-Reply-To: <200806101644.34693.ossrosch@linux.vnet.ibm.com> (Stefan
	Roscher's message of "Tue, 10 Jun 2008 16:44:31 +0200")
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Cc: TKLEIN@de.ibm.com, THEMANN@de.ibm.com, fenkes@de.ibm.com,
	LKML <linux-kernel@vger.kernel.org>, OF-EWG <ewg@lists.openfabrics.org>,
	LinuxPPC-Dev <linuxppc-dev@ozlabs.org>, raisch@de.ibm.com,
	Paul Mackerras <paulus@samba.org>, general@lists.openfabrics.org
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 > During corner case testing, we noticed that some versions of ehca 
 > do not properly transition to interrupt done in special load situations.
 > This can be resolved by periodically triggering EOI through H_EOI, 
 > if eqes are pending.

So just to be clear: this is a workaround for a hardware/firmware bug?

 - R.