From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by ozlabs.org (Postfix) with ESMTP id 5CEC72C00AB for ; Wed, 22 May 2013 00:45:02 +1000 (EST) Date: Tue, 21 May 2013 16:45:49 +0200 From: Alexander Gordeev To: Mike Qiu Subject: Re: [PATCH 0/3] Enable multiple MSI feature in pSeries Message-ID: <20130521144548.GB21632@dhcp-26-207.brq.redhat.com> References: <1358235536-32741-1-git-send-email-qiudayu@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <1358235536-32741-1-git-send-email-qiudayu@linux.vnet.ibm.com> Cc: tglx@linutronix.de, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Tue, Jan 15, 2013 at 03:38:53PM +0800, Mike Qiu wrote: > The test results is shown by 'cat /proc/interrups': > CPU0 CPU1 CPU2 CPU3 > 16: 240458 261601 226310 200425 XICS Level IPI > 17: 0 0 0 0 XICS Level RAS_EPOW > 18: 10 0 3 2 XICS Level hvc_console > 19: 122182 28481 28527 28864 XICS Level ibmvscsi > 20: 506 7388226 108 118 XICS Level eth0 > 21: 6 5 5 5 XICS Level host1-0 > 22: 817 814 816 813 XICS Level host1-1 Hi Mike, I am curious if pSeries firmware allows changing affinity masks independently for multiple MSIs? I.e. in your example, would it be possible to assign IRQ21 and IRQ22 to different CPUs? Thanks! > LOC: 398077 316725 231882 203049 Local timer interrupts > SPU: 1659 919 961 903 Spurious interrupts > CNT: 0 0 0 0 Performance > monitoring interrupts > MCE: 0 0 0 0 Machine check exceptions -- Regards, Alexander Gordeev agordeev@redhat.com