Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756183AbYFJOxR (ORCPT ); Tue, 10 Jun 2008 10:53:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753023AbYFJOw7 (ORCPT ); Tue, 10 Jun 2008 10:52:59 -0400 Received: from sj-iport-1.cisco.com ([171.71.176.70]:28492 "EHLO sj-iport-1.cisco.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751685AbYFJOw7 (ORCPT ); Tue, 10 Jun 2008 10:52:59 -0400 X-IronPort-AV: E=Sophos;i="4.27,618,1204531200"; d="scan'208";a="40027124" From: Roland Dreier To: Stefan Roscher 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 Subject: Re: [PATCH REPOST] IB/ehca: In case of lost interrupts, trigger EOI to reenable interrupts References: <200806101644.34693.ossrosch@linux.vnet.ibm.com> X-Message-Flag: Warning: May contain useful information 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") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.60 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-OriginalArrivalTime: 10 Jun 2008 14:52:57.0719 (UTC) FILETIME=[ABC7A070:01C8CB09] Authentication-Results: sj-dkim-1; header.From=rdreier@cisco.com; dkim=pass ( sig from cisco.com/sjdkim1004 verified; ); Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 565 Lines: 13 > 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. -- 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/