Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755695AbYFJPCR (ORCPT ); Tue, 10 Jun 2008 11:02:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754111AbYFJPCE (ORCPT ); Tue, 10 Jun 2008 11:02:04 -0400 Received: from e5.ny.us.ibm.com ([32.97.182.145]:49091 "EHLO e5.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753998AbYFJPCC (ORCPT ); Tue, 10 Jun 2008 11:02:02 -0400 From: Stefan Roscher To: Roland Dreier Subject: Re: [PATCH REPOST] IB/ehca: In case of lost interrupts, trigger EOI to reenable interrupts Date: Tue, 10 Jun 2008 17:01:45 +0200 User-Agent: KMail/1.9.6 (enterprise 20070904.708012) Cc: Roland Dreier , Paul Mackerras , "LinuxPPC-Dev" , LKML , "OF-EWG" , general@lists.openfabrics.org, fenkes@de.ibm.com, raisch@de.ibm.com, hnguyen@de.ibm.com, TKLEIN@de.ibm.com, THEMANN@de.ibm.com References: <200806101644.34693.ossrosch@linux.vnet.ibm.com> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200806101701.47090.ossrosch@linux.vnet.ibm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 665 Lines: 18 On Tuesday 10 June 2008 16:52:57 Roland Dreier wrote: > > 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. > Yes it is. regards Stefan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/