Re: [PATCH linux-2.6 00/03] i386_and_x86_64: implement dma_broken_dac() test

From: Andi Kleen
Date: Wed Sep 28 2005 - 07:49:22 EST

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[full quote for the benefit on Andy]

I don't want to blacklist all of Nvidia for a single report. Greg,Andrew,
please don't apply these patches for now.

We have lots of systems with NForce4 chipsets and >4GB and so far nobody
has reported such an issue. In fact it works fine for me on such
a system. So something must be very specificially wrong on your
system.

Andy, do you have some thoughts on this issue?
Could it be a BIOS that programs something wrong?

The server systems with NF4-Prof seem to certainly work.

-Andi

On Wed, Sep 28, 2005 at 09:44:06PM +0900, Tejun Heo wrote:

> Hello, Andi Kleen & Greg Kroah-Hartman.
>
> I've encountered this problem on my new desktop - an athlon 64
> machine with ASUS A8N-E (w/ CK804 a.k.a nforce4 chipset, lspci results
> at the end of this mail) and 4 gigs of memory. I put in an intel
> 82541 gigabit controller in one of its PCI slot but it malfunctioned.
> If I ping from another machine, replies got dropped, delayed in
> seconds, dupped and/or corrupted.
>
> As the last 1gig of memory lived above 4G barrier, I suspected
> addressing problem and booted with mem=4G. Then, it worked fine. I
> verified again with Adaptec 29160 SCSI controller. Without mem=4G,
> data corruption occurred and sometimes probing went wrong with lots of
> messages similar to the following.
>
> scsi: host 4 channel 0 id 1 lun 0xffffffffffffffff has a LUN larger than currently supported.
>
> I believe the problem is with the PCI bridge on the chipset as the
> ethernet controller living on the chipset, which doesn't go throught
> the PCI bridge, has no problem accessing memories over 4G.
>
> The following patchset
>
> a. implements dma_broken_dac() in arch/i386/quirks.c which takes a
> device and returns whether any ancestor of the device is in
> bridges_with_broken_dac pci ID list, which currently contains only
> CK804 PCI bridge.
>
> b. adds dma_broken_dac() check to dma_supported() functions of i386
> and x86_64 thus failing 64bit pci_set_dma_mask for devices hanging
> off bridges with broken DAC support.
>
> arch/i386/kernel/quirks.c was chosen as the test is needed by both
> i386 and x86_64. I didn't know where to put the prototype and put it
> right above its usage for i386 and in asm-x86_64/proto.h for x86_64.
> Please let me know if there are better places.
>
> With these patches applied, my machine reports like the following on
> boot and the e1000 and aic79xx work fine.
>
> PCI 0000:05:06.0: bridge 0000:00:09.0 has broken DAC support, 64bit DMA disabled
>
> Thanks.
>
> [ Start of patch descriptions ]
>
> 01_i386_and_x86_64_implement-dma_broken_dac.patch
> : implement dma_broken_dac() test for i386 and x86_64
>
> CK804 PCI bridge fails to forward DAC commands from the
> secondary bus to the primary, which is required by PCI
> specification from ver1.1. This patch implements
> dma_broken_dac() which tests whether there is any such bridge
> among parents of a given device.
>
> 02_i386_and_x86_64_add-broken-dac-check-to-i386.patch
> : check broken_dac to i386 dma_supported()
>
> check for broken_dac in i386 dma_supported() routine. This
> disables 64-bit DMA for devices hanging off broken bridges.
>
> 03_i386_and_x86_64_add-broken-dac-check-to-x86_64.patch
> : check broken_dac to x86_64 dma_supported()
>
> check for broken_dac in x86-64 dma_supported() routine. This
> disables 64-bit DMA for devices hanging off broken bridges.
>
> [ End of patch descriptions ]
>
> Details regarding the machine.
>
> a. Memory configuration.
>
> BIOS-e820: 0000000000000000 - 000000000009f800 (usable)
> BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved)
> BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
> BIOS-e820: 0000000000100000 - 00000000bfff0000 (usable)
> BIOS-e820: 00000000bfff0000 - 00000000bfff3000 (ACPI NVS)
> BIOS-e820: 00000000bfff3000 - 00000000c0000000 (ACPI data)
> BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved)
> BIOS-e820: 00000000fec00000 - 0000000100000000 (reserved)
> BIOS-e820: 0000000100000000 - 0000000140000000 (usable)
>
>
> b. lspci -vt
>
> -[00]-+-00.0 nVidia Corporation CK804 Memory Controller
> +-01.0 nVidia Corporation CK804 ISA Bridge
> +-01.1 nVidia Corporation CK804 SMBus
> +-02.0 nVidia Corporation CK804 USB Controller
> +-02.1 nVidia Corporation CK804 USB Controller
> +-04.0 nVidia Corporation CK804 AC'97 Audio Controller
> +-06.0 nVidia Corporation CK804 IDE
> +-07.0 nVidia Corporation CK804 Serial ATA Controller
> +-08.0 nVidia Corporation CK804 Serial ATA Controller
> +-09.0-[05]--+-06.0 Intel Corporation 82541GI/PI Gigabit Ethernet Controller
> | +-07.0 VIA Technologies Inc. VT1720/24 [Envy24PT/HT] PCI Multi-Channel Audio Controller
> | \-08.0 Timedia Technology Co Ltd PCI2S550 (Dual 16550 UART)
> +-0a.0 nVidia Corporation CK804 Ethernet Controller
> +-0b.0-[04]--
> +-0c.0-[03]--
> +-0d.0-[02]--
> +-0e.0-[01]----00.0 nVidia Corporation GeForce 6200 TurboCache(TM)
> +-18.0 Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
> +-18.1 Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
> +-18.2 Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
> \-18.3 Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
>
>
> c. lspci -nvvv
>
> 0000:00:00.0 0580: 10de:005e (rev a3)
> Subsystem: 1043:815a
> Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
> Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> Latency: 0
> Capabilities: [44] #08 [01e0]
> Capabilities: [e0] #08 [a801]
>
> 0000:00:01.0 0601: 10de:0050 (rev a3)
> Subsystem: 1043:815a
> Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
> Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> Latency: 0
>
> 0000:00:01.1 0c05: 10de:0052 (rev a2)
> Subsystem: 1043:815a
> Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
> Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> Interrupt: pin A routed to IRQ 11
> Region 0: I/O ports at e400 [size=32]
> Region 4: I/O ports at 4c00 [size=64]
> Region 5: I/O ports at 4c40 [size=64]
> Capabilities: [44] Power Management version 2
> Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold+)
> Status: D0 PME-Enable- DSel=0 DScale=0 PME-
>
> 0000:00:02.0 0c03: 10de:005a (rev a2) (prog-if 10)
> Subsystem: 1043:815a
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
> Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> Latency: 0 (750ns min, 250ns max)
> Interrupt: pin A routed to IRQ 20
> Region 0: Memory at d5004000 (32-bit, non-prefetchable) [size=4K]
> Capabilities: [44] Power Management version 2
> Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
> Status: D0 PME-Enable- DSel=0 DScale=0 PME-
>
> 0000:00:02.1 0c03: 10de:005b (rev a3) (prog-if 20)
> Subsystem: 1043:815a
> Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
> Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> Latency: 0 (750ns min, 250ns max)
> Interrupt: pin B routed to IRQ 19
> Region 0: Memory at feb00000 (32-bit, non-prefetchable) [size=256]
> Capabilities: [44] #0a [2098]
> Capabilities: [80] Power Management version 2
> Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
> Status: D0 PME-Enable- DSel=0 DScale=0 PME-
>
> 0000:00:04.0 0401: 10de:0059 (rev a2)
> Subsystem: 1043:812a
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
> Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> Latency: 0 (500ns min, 1250ns max)
> Interrupt: pin A routed to IRQ 18
> Region 0: I/O ports at dc00 [size=256]
> Region 1: I/O ports at e000 [size=256]
> Region 2: Memory at d5003000 (32-bit, non-prefetchable) [size=4K]
> Capabilities: [44] Power Management version 2
> Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
> Status: D0 PME-Enable- DSel=0 DScale=0 PME-
>
> 0000:00:06.0 0101: 10de:0053 (rev f2) (prog-if 8a [Master SecP PriP])
> Subsystem: 1043:815a
> Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
> Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> Latency: 0 (750ns min, 250ns max)
> Region 4: I/O ports at f000 [size=16]
> Capabilities: [44] Power Management version 2
> Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
> Status: D0 PME-Enable- DSel=0 DScale=0 PME-
>
> 0000:00:07.0 0101: 10de:0054 (rev f3) (prog-if 85 [Master SecO PriO])
> Subsystem: 1043:815a
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
> Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> Latency: 0 (750ns min, 250ns max)
> Interrupt: pin A routed to IRQ 17
> Region 0: I/O ports at 09f0 [size=8]
> Region 1: I/O ports at 0bf0 [size=4]
> Region 2: I/O ports at 0970 [size=8]
> Region 3: I/O ports at 0b70 [size=4]
> Region 4: I/O ports at d800 [size=16]
> Region 5: Memory at d5002000 (32-bit, non-prefetchable) [size=4K]
> Capabilities: [44] Power Management version 2
> Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
> Status: D0 PME-Enable- DSel=0 DScale=0 PME-
>
> 0000:00:08.0 0101: 10de:0055 (rev f3) (prog-if 85 [Master SecO PriO])
> Subsystem: 1043:815a
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
> Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> Latency: 0 (750ns min, 250ns max)
> Interrupt: pin A routed to IRQ 18
> Region 0: I/O ports at 09e0 [size=8]
> Region 1: I/O ports at 0be0 [size=4]
> Region 2: I/O ports at 0960 [size=8]
> Region 3: I/O ports at 0b60 [size=4]
> Region 4: I/O ports at c400 [size=16]
> Region 5: Memory at d5001000 (32-bit, non-prefetchable) [size=4K]
> Capabilities: [44] Power Management version 2
> Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
> Status: D0 PME-Enable- DSel=0 DScale=0 PME-
>
> 0000:00:09.0 0604: 10de:005c (rev a2) (prog-if 01)
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
> Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> Latency: 0
> Bus: primary=00, secondary=05, subordinate=05, sec-latency=128
> I/O behind bridge: 0000a000-0000afff
> Memory behind bridge: d3000000-d4ffffff
> Prefetchable memory behind bridge: d5100000-d51fffff
> BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
>
> 0000:00:0a.0 0680: 10de:0057 (rev a3)
> Subsystem: 1043:8141
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
> Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> Latency: 0 (250ns min, 5000ns max)
> Interrupt: pin A routed to IRQ 17
> Region 0: Memory at d5000000 (32-bit, non-prefetchable) [size=4K]
> Region 1: I/O ports at b000 [size=8]
> Capabilities: [44] Power Management version 2
> Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
> Status: D0 PME-Enable+ DSel=0 DScale=0 PME-
>
> 0000:00:0b.0 0604: 10de:005d (rev a3)
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
> Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> Latency: 0, Cache Line Size: 0x08 (32 bytes)
> Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
> I/O behind bridge: 0000f000-00000fff
> Memory behind bridge: fff00000-000fffff
> Prefetchable memory behind bridge: 00000000fff00000-0000000000000000
> BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
> Capabilities: [40] Power Management version 2
> Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
> Status: D0 PME-Enable- DSel=0 DScale=0 PME-
> Capabilities: [48] Message Signalled Interrupts: 64bit+ Queue=0/1 Enable-
> Address: 0000000000000000 Data: 0000
> Capabilities: [58] #08 [a800]
> Capabilities: [80] #10 [0141]
>
> 0000:00:0c.0 0604: 10de:005d (rev a3)
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
> Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> Latency: 0, Cache Line Size: 0x08 (32 bytes)
> Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
> I/O behind bridge: 0000f000-00000fff
> Memory behind bridge: fff00000-000fffff
> Prefetchable memory behind bridge: 00000000fff00000-0000000000000000
> BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
> Capabilities: [40] Power Management version 2
> Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
> Status: D0 PME-Enable- DSel=0 DScale=0 PME-
> Capabilities: [48] Message Signalled Interrupts: 64bit+ Queue=0/1 Enable-
> Address: 0000000000000000 Data: 0000
> Capabilities: [58] #08 [a800]
> Capabilities: [80] #10 [0141]
>
> 0000:00:0d.0 0604: 10de:005d (rev a3)
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
> Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> Latency: 0, Cache Line Size: 0x08 (32 bytes)
> Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
> I/O behind bridge: 0000f000-00000fff
> Memory behind bridge: fff00000-000fffff
> Prefetchable memory behind bridge: 00000000fff00000-0000000000000000
> BridgeCtl: Parity- SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
> Capabilities: [40] Power Management version 2
> Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
> Status: D0 PME-Enable- DSel=0 DScale=0 PME-
> Capabilities: [48] Message Signalled Interrupts: 64bit+ Queue=0/1 Enable-
> Address: 0000000000000000 Data: 0000
> Capabilities: [58] #08 [a800]
> Capabilities: [80] #10 [0141]
>
> 0000:00:0e.0 0604: 10de:005d (rev a3)
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
> Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> Latency: 0, Cache Line Size: 0x08 (32 bytes)
> Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
> I/O behind bridge: 0000f000-00000fff
> Memory behind bridge: d0000000-d2ffffff
> Prefetchable memory behind bridge: 00000000c0000000-00000000cff00000
> BridgeCtl: Parity- SERR+ NoISA- VGA+ MAbort- >Reset- FastB2B-
> Capabilities: [40] Power Management version 2
> Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
> Status: D0 PME-Enable- DSel=0 DScale=0 PME-
> Capabilities: [48] Message Signalled Interrupts: 64bit+ Queue=0/1 Enable-
> Address: 0000000000000000 Data: 0000
> Capabilities: [58] #08 [a800]
> Capabilities: [80] #10 [0141]
>
> 0000:00:18.0 0600: 1022:1100
> Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
> Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> Capabilities: [80] #08 [2101]
>
> 0000:00:18.1 0600: 1022:1101
> Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
> Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
>
> 0000:00:18.2 0600: 1022:1102
> Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
> Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
>
> 0000:00:18.3 0600: 1022:1103
> Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
> Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
>
> 0000:01:00.0 0300: 10de:0161 (rev a1)
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
> Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> Latency: 0
> Interrupt: pin A routed to IRQ 16
> Region 0: Memory at d0000000 (32-bit, non-prefetchable) [size=16M]
> Region 1: Memory at c0000000 (64-bit, prefetchable) [size=256M]
> Region 3: Memory at d1000000 (64-bit, non-prefetchable) [size=16M]
> Expansion ROM at d2000000 [disabled] [size=128K]
> Capabilities: [60] Power Management version 2
> Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
> Status: D0 PME-Enable- DSel=0 DScale=0 PME-
> Capabilities: [68] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable-
> Address: 0000000000000000 Data: 0000
> Capabilities: [78] #10 [0001]
>
> 0000:05:06.0 0200: 8086:1076
> Subsystem: 8086:1113
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
> Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> Latency: 32 (63750ns min), Cache Line Size: 0x08 (32 bytes)
> Interrupt: pin A routed to IRQ 21
> Region 0: Memory at d4020000 (32-bit, non-prefetchable) [size=128K]
> Region 1: Memory at d4000000 (32-bit, non-prefetchable) [size=128K]
> Region 2: I/O ports at a000 [size=64]
> Expansion ROM at d5100000 [disabled] [size=128K]
> Capabilities: [dc] Power Management version 2
> Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
> Status: D0 PME-Enable- DSel=0 DScale=1 PME-
> Capabilities: [e4] PCI-X non-bridge device.
> Command: DPERE- ERO+ RBC=0 OST=0
> Status: Bus=0 Dev=0 Func=0 64bit- 133MHz- SCD- USC-, DC=simple, DMMRBC=2, DMOST=0, DMCRS=0, RSCEM-
> Capabilities: [f0] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable-
> Address: 0000000000000000 Data: 0000
>
> 0000:05:07.0 0401: 1412:1724 (rev 01)
> Subsystem: 1412:1724
> Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
> Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> Latency: 32
> Interrupt: pin A routed to IRQ 22
> Region 0: I/O ports at a400 [size=32]
> Region 1: I/O ports at a800 [size=128]
> Capabilities: [80] Power Management version 1
> Flags: PMEClk- DSI- D1- D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
> Status: D0 PME-Enable- DSel=0 DScale=0 PME-
>
> 0000:05:08.0 0700: 1409:7168 (rev 01) (prog-if 02)
> Subsystem: 1409:0002
> Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping+ SERR- FastB2B-
> Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
> Interrupt: pin A routed to IRQ 16
> Region 0: I/O ports at ac00 [size=32]
>
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