From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e23smtp02.au.ibm.com (e23smtp02.au.ibm.com [202.81.31.144]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "e23smtp02.au.ibm.com", Issuer "GeoTrust SSL CA" (not verified)) by ozlabs.org (Postfix) with ESMTPS id 239062C0087 for ; Thu, 31 Jan 2013 13:10:44 +1100 (EST) Received: from /spool/local by e23smtp02.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 31 Jan 2013 12:05:09 +1000 Received: from d23relay03.au.ibm.com (d23relay03.au.ibm.com [9.190.235.21]) by d23dlp02.au.ibm.com (Postfix) with ESMTP id A90322BB006E for ; Thu, 31 Jan 2013 13:10:35 +1100 (EST) Received: from d23av03.au.ibm.com (d23av03.au.ibm.com [9.190.234.97]) by d23relay03.au.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id r0V2AYgg6946866 for ; Thu, 31 Jan 2013 13:10:34 +1100 Received: from d23av03.au.ibm.com (loopback [127.0.0.1]) by d23av03.au.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id r0V2AY3q012025 for ; Thu, 31 Jan 2013 13:10:34 +1100 Message-ID: <1359598231.2347.0.camel@localhost> Subject: Re: [PATCH 0/3] Enable multiple MSI feature in pSeries From: Mike To: linuxppc-dev@lists.ozlabs.org Date: Thu, 31 Jan 2013 10:10:31 +0800 In-Reply-To: <1358235536-32741-1-git-send-email-qiudayu@linux.vnet.ibm.com> References: <1358235536-32741-1-git-send-email-qiudayu@linux.vnet.ibm.com> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Cc: tglx@linutronix.de, linux-kernel@vger.kernel.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hi all Any comments about my patchset? Thanks Mike 在 2013-01-15二的 15:38 +0800，Mike Qiu写道： > Currently, multiple MSI feature hasn't been enabled in pSeries, > These patches try to enbale this feature. > > These patches have been tested by using ipr driver, and the driver patch > has been made by Wen Xiong : > > [PATCH 0/7] Add support for new IBM SAS controllers > > Test platform: One partition of pSeries with one cpu core(4 SMTs) and > RAID bus controller: IBM PCI-E IPR SAS Adapter (ASIC) in POWER7 > OS version: SUSE Linux Enterprise Server 11 SP2 (ppc64) with 3.8-rc3 kernel > > IRQ 21 and 22 are assigned to the ipr device which support 2 mutiple MSI. > > 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 > 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 > > Mike Qiu (3): > irq: Set multiple MSI descriptor data for multiple IRQs > irq: Add hw continuous IRQs map to virtual continuous IRQs support > powerpc/pci: Enable pSeries multiple MSI feature > > arch/powerpc/kernel/msi.c | 4 -- > arch/powerpc/platforms/pseries/msi.c | 62 ++++++++++++++++++++++++++++++++- > include/linux/irq.h | 4 ++ > include/linux/irqdomain.h | 3 ++ > kernel/irq/chip.c | 40 ++++++++++++++++----- > kernel/irq/irqdomain.c | 61 +++++++++++++++++++++++++++++++++ > 6 files changed, 158 insertions(+), 16 deletions(-) >