From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756361AbZEJPKl (ORCPT ); Sun, 10 May 2009 11:10:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755286AbZEJPKc (ORCPT ); Sun, 10 May 2009 11:10:32 -0400 Received: from mx-out.daemonmail.net ([216.104.160.38]:52044 "EHLO mx-out.daemonmail.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754714AbZEJPKb (ORCPT ); Sun, 10 May 2009 11:10:31 -0400 From: "Michael S. Zick" Reply-To: lkml@morethan.org To: linux-kernel@vger.kernel.org Subject: Re: 2.6.27.19 + 28.7: network timeouts for r8169 and 8139too Date: Sun, 10 May 2009 10:10:27 -0500 User-Agent: KMail/1.9.9 Cc: Michael Riepe References: <200903041828.49972.m.bueker@berlin.de> <4A06D8D2.4010505@googlemail.com> <200905101001.40455.lkml@morethan.org> In-Reply-To: <200905101001.40455.lkml@morethan.org> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200905101010.29746.lkml@morethan.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun May 10 2009, Michael S. Zick wrote: > On Sun May 10 2009, Michael Riepe wrote: > > > > Michael Buesch wrote: > > > > > I'm currently testing 2.6.29.1 without any additional patches but > > > with the pci=nomsi boot option. > > > > > > I didn't notice any hickups, yet. I'm running a stresstest on a GBit link for quite > > > some time now. Earlier tests with older kernels and MSI burped earlier. > > > > > I can confirm greater through-put and reduced cpu usage with pci=nomsi > on different hardware. > > Machine: Everex Cloudbook (ce1200v) > HICS: Via CX700 > PCI-to-PCIe bridge, Via 1106:324B > (only) Downstream device: HD Audio Controller, Via 1106:3288 > > Kernel: 2.6.30-rc5 (git repo) > > No extensive benchmarking required here - you can hear the difference! > > 00:13.1 PCI bridge [0604]: VIA Technologies, Inc. CX700/VX700 PCI to PCI Bridge [1106:324a] > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- > Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- Latency: 0 > Bus: primary=00, secondary=03, subordinate=03, sec-latency=0 > I/O behind bridge: 00005000-00005fff > Memory behind bridge: d1100000-d11fffff > Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff > Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=medium >TAbort- BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B- > PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- > Ooops - cut&paste error 00:13.0 PCI bridge [0604]: VIA Technologies, Inc. CX700/VX700 Host Bridge [1106:324b] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- TAbort- Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Mike > 02:01.0 Audio device [0403]: VIA Technologies, Inc. VT1708/A [Azalia HDAC] (VIA High Definition Audio Controller) [1106:3288] (rev 10) > Subsystem: FIRST INTERNATIONAL Computer Inc Device [1509:2f07] > Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- > Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- Latency: 0, Cache Line Size: 32 bytes > Interrupt: pin A routed to IRQ 17 > Region 0: Memory at d1000000 (64-bit, non-prefetchable) [size=16K] > Capabilities: [50] Power Management version 2 > Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA PME(D0+,D1-,D2-,D3hot+,D3cold+) > Status: D0 PME-Enable- DSel=0 DScale=0 PME- > Capabilities: [60] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable- > Address: 0000000000000000 Data: 0000 > Capabilities: [70] Express (v1) Root Complex Integrated Endpoint, MSI 00 > DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us > ExtTag- RBE- FLReset- > DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- > RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- > MaxPayload 128 bytes, MaxReadReq 128 bytes > DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend+ > LnkCap: Port #0, Speed unknown, Width x0, ASPM unknown, Latency L0 <64ns, L1 <1us > ClockPM- Suprise- LLActRep- BwNot- > LnkCtl: ASPM Disabled; Disabled- Retrain- CommClk- > ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- > LnkSta: Speed unknown, Width x0, TrErr- Train- SlotClk- DLActive- BWMgmt- ABWMgmt- > Kernel driver in use: HDA Intel > > Mike > > > I will do more testing. If it turns out this is stable I will test the same kernel > > > with Message Signaled Interrupts to see if that causes some breakage. > > > > I've had this problem up to and including 2.6.29.2. Currently, I'm > > trying 2.6.29.2 with pci=nomsi, and it's stable so far. With MSI > > enabled, a single high-speed TCP transfer will stop after a few seconds, > > but without MSI, I can run four simultaneous transfers to two different > > hosts without a single hickup. > > > > It seems to me that this particular chip really doesn't like MSI. > > > > Kernel: 2.6.29.2 (x86_64) > > Board: Intel D945GCLF2 > > BIOS version: LF94510J.86A.0099.2008.0731.0303 > > > > lspci -vv: > > 01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. > > RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 02) > > Subsystem: Intel Corporation Device 0001 > > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- > > ParErr- Stepping- SERR- FastB2B- DisINTx- > > Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- > > SERR- > Latency: 0, Cache Line Size: 64 bytes > > Interrupt: pin A routed to IRQ 16 > > Region 0: I/O ports at 1000 [size=256] > > Region 2: Memory at 90100000 (64-bit, non-prefetchable) [size=4K] > > Region 4: Memory at 90000000 (64-bit, prefetchable) [size=64K] > > Expansion ROM at 90020000 [disabled] [size=128K] > > Capabilities: [40] Power Management version 3 > > Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA > > PME(D0+,D1+,D2+,D3hot+,D3cold+) > > Status: D0 PME-Enable- DSel=0 DScale=0 PME- > > Capabilities: [50] MSI: Mask- 64bit+ Count=1/1 Enable- > > Address: 0000000000000000 Data: 0000 > > Capabilities: [70] Express (v1) Endpoint, MSI 01 > > DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s > > <512ns, L1 <64us > > ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset- > > DevCtl: Report errors: Correctable- Non-Fatal- Fatal- > > Unsupported- > > RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop- > > MaxPayload 128 bytes, MaxReadReq 4096 bytes > > DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ > > TransPend- > > LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, > > Latency L0 <512ns, L1 <64us > > ClockPM+ Suprise- LLActRep- BwNot- > > LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- > > CommClk+ > > ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- > > LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ > > DLActive- BWMgmt- ABWMgmt- > > Capabilities: [b0] MSI-X: Enable- Mask- TabSize=2 > > Vector table: BAR=4 offset=00000000 > > PBA: BAR=4 offset=00000800 > > Capabilities: [d0] Vital Product Data > > Kernel driver in use: r8169 > > Kernel modules: r8169 > > > > > -- > 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/ > >