ada hal menarik tentang irq ini.
pertanyaannya:
bisa ngak ada 2 devices yang memakai IRQ sama.
setahu saya sih ngak bisa..
dan untuk network device ngak ada yang sama.
tapi bagaimana dengan tipe device lainnya?
dari dari hasil ini:
# lspci -vvv
00:00.0 Host bridge: Intel Corporation 82845G/GL[Brookdale-G]/GE/PE
DRAM Controller/Host-Hub Interface (rev 02)
Subsystem: Intel Corporation 82845G/GL[Brookdale-G]/GE/PE DRAM
Controller/Host-Hub Interface
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
Region 0: Memory at f8000000 (32-bit, prefetchable) [size=64M]
Capabilities: [e4] Vendor Specific Information
Capabilities: [a0] AGP version 2.0
Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans-
64bit-
FW+ AGP3- Rate=x1,x2,x4
Command: RQ=1 ArqSz=0 Cal=0 SBA- AGP- GART64- 64bit- FW-
Rate=<none>
00:01.0 PCI bridge: Intel Corporation 82845G/GL[Brookdale-G]/GE/PE
Host-to-AGP Bridge (rev 02) (prog-if 00 [Normal decode])
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: 32
Bus: primary=00, secondary=01, subordinate=01, sec-latency=32
I/O behind bridge: 0000f000-00000fff
Memory behind bridge: fc800000-fe8fffff
Prefetchable memory behind bridge: e4500000-f45fffff
Secondary status: 66MHz+ FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA- VGA+ MAbort- >Reset- FastB2B-
00:1d.0 USB Controller: Intel Corporation 82801DB/DBL/DBM
(ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 (rev 02) (prog-if 00
[UHCI])
Subsystem: Intel Corporation Unknown device 4232
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: 0
Interrupt: pin A routed to IRQ 16
Region 4: I/O ports at e800 [size=32]
00:1d.1 USB Controller: Intel Corporation 82801DB/DBL/DBM
(ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2 (rev 02) (prog-if 00
[UHCI])
Subsystem: Intel Corporation Unknown device 4232
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: 0
Interrupt: pin B routed to IRQ 17
Region 4: I/O ports at e880 [size=32]
00:1d.2 USB Controller: Intel Corporation 82801DB/DBL/DBM
(ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3 (rev 02) (prog-if 00
[UHCI])
Subsystem: Intel Corporation Unknown device 4232
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: 0
Interrupt: pin C routed to IRQ 18
Region 4: I/O ports at ec00 [size=32]
00:1d.7 USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M)
USB2 EHCI Controller (rev 02) (prog-if 20 [EHCI])
Subsystem: Intel Corporation Unknown device 4232
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: 0
Interrupt: pin D routed to IRQ 19
Region 0: Memory at febffc00 (32-bit, non-prefetchable) [size=1K]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Debug port
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 82)
(prog-if 00 [Normal decode])
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=02, subordinate=02, sec-latency=32
I/O behind bridge: 0000d000-0000dfff
Memory behind bridge: fe900000-feafffff
Prefetchable memory behind bridge: f4600000-f46fffff
Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
00:1f.0 ISA bridge: Intel Corporation 82801DB/DBL (ICH4/ICH4-L) LPC
Interface Bridge (rev 02)
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: 0
00:1f.1 IDE interface: Intel Corporation 82801DB (ICH4) IDE Controller
(rev 02) (prog-if 8a [Master SecP PriP])
Subsystem: Intel Corporation Unknown device 4232
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: 0
Interrupt: pin A routed to IRQ 18
Region 0: I/O ports at 01f0 [size=8]
Region 1: I/O ports at 03f4 [size=1]
Region 2: I/O ports at 0170 [size=8]
Region 3: I/O ports at 0374 [size=1]
Region 4: I/O ports at ffa0 [size=16]
Region 5: Memory at 50000000 (32-bit, non-prefetchable) [size=1K]
00:1f.3 SMBus: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M)
SMBus Controller (rev 02)
Subsystem: Intel Corporation Unknown device 4232
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 B routed to IRQ 11
Region 4: I/O ports at e000 [size=32]
00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM
(ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 02)
Subsystem: Intel Corporation Unknown device 0109
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: 0
Interrupt: pin B routed to IRQ 23
Region 0: I/O ports at e400 [size=256]
Region 1: I/O ports at e080 [size=64]
Region 2: Memory at febff800 (32-bit, non-prefetchable) [size=512]
Region 3: Memory at febff400 (32-bit, non-prefetchable) [size=256]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
01:00.0 VGA compatible controller: nVidia Corporation NV11 [GeForce2
MX/MX 400] (rev b2) (prog-if 00 [VGA controller])
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 (1250ns min, 250ns max)
Interrupt: pin A routed to IRQ 11
Region 0: Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
Region 1: Memory at e8000000 (32-bit, prefetchable) [size=128M]
Expansion ROM at fe8f0000 [disabled] [size=64K]
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: [44] AGP version 2.0
Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA- ITACoh- GART64- HTrans-
64bit-
FW- AGP3- Rate=x1,x2,x4
Command: RQ=1 ArqSz=0 Cal=0 SBA- AGP- GART64- 64bit- FW-
Rate=<none>
02:01.0 Ethernet controller: D-Link System Inc RTL8139 Ethernet (rev 10)
Subsystem: D-Link System Inc DFE-528TX 10/100 Fast Ethernet PCI Adapter
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 (8000ns min, 16000ns max)
Interrupt: pin A routed to IRQ 20
Region 0: I/O ports at d000 [size=256]
Region 1: Memory at feaff800 (32-bit, non-prefetchable) [size=256]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA
PME(D0-,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
02:06.0 Mass storage controller: Silicon Image, Inc. SiI 3112
[SATALink/SATARaid] Serial ATA Controller (rev 01)
Subsystem: Silicon Image, Inc. SiI 3112 SATALink Controller
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, Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 22
Region 0: I/O ports at dc00 [size=8]
Region 1: I/O ports at d880 [size=4]
Region 2: I/O ports at d800 [size=8]
Region 3: I/O ports at d480 [size=4]
Region 4: I/O ports at d400 [size=16]
Region 5: Memory at feaffc00 (32-bit, non-prefetchable) [size=512]
Expansion ROM at f4600000 [disabled] [size=512K]
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=2 PME-
02:08.0 Ethernet controller: Intel Corporation 82801DB PRO/100 VE
(LOM) Ethernet Controller (rev 82)
Subsystem: Intel Corporation Unknown device 301e
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 (2000ns min, 14000ns max), Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 21
Region 0: Memory at feafe000 (32-bit, non-prefetchable) [size=4K]
Region 1: I/O ports at df00 [size=64]
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=2 PME-
# lspci -vvv | grep -i irq
Interrupt: pin A routed to IRQ 16
Interrupt: pin B routed to IRQ 17
Interrupt: pin C routed to IRQ 18
Interrupt: pin D routed to IRQ 19
Interrupt: pin A routed to IRQ 18
Interrupt: pin B routed to IRQ 11
Interrupt: pin B routed to IRQ 23
Interrupt: pin A routed to IRQ 11
Interrupt: pin A routed to IRQ 20
Interrupt: pin A routed to IRQ 22
Interrupt: pin A routed to IRQ 21
terlihat ada devices yang memakai IRQ sama, yang ngebedain pin nya doang.
pin A & pin B.
any comments?
On 6/5/09, Hari Hendaryanto <har...@csmcom.com> wrote:
> muhammad panji wrote:
>> 2009/6/5 achmad mardiansyah <a.mardians...@gmail.com>:
>>
>>> gini ya pak...
>>> dari hasil "lspci -vvv":
>>> kan dapet tuh, kode card yang lagi nancep:
>>> 01:00.0 & 01:01.0
>>>
>>>
>> Saya rasa tidak perlu di konfirmasi lagi. nanti yang ada hanya dump
>> hasil test semua. toh sudah bisa menentukan interface apa di slot
>> mana.
>> rgds
>
> tapi gpp pak, biar lebih clear lagi. dan mungkin berguna untuk yg lain
> bila menemui kasus yg sama.
>
> ini methode saya buat ngeliat mapping device eth ke slot pci.
>
> dari dump_pirq saya dapet info bus:slot.function nya (plus slot fisiknya).
>
> ./dump_pirq | grep Ethernet
> Device 00:0e.0 (slot 2): Ethernet controller
> Device 00:0f.0 (slot 3): Ethernet controller
>
> 00:0e.0 di slot fisik 2
> 00:0f.0 di slot fisik 3
>
> sekarang gimana mencari tahu 00:0e.0 dan 00:0f.0 ada di eth brp?
> methode yg saya gunakan adalah menyamakan irq number nya.
>
> pertama saya execute ifconfig hasilnya:
>
> eth0 Link encap:Ethernet HWaddr 00:10:5A:6F:90:A2
> inet addr:202.x.x.x Bcast:202.x.x.x Mask:255.x.x.x
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> TX packets:4 errors:0 dropped:0 overruns:0 carrier:4
> collisions:0 txqueuelen:100
> RX bytes:0 (0.0 b) TX bytes:240 (240.0 b)
> Interrupt:10 Base address:0x1080
>
> eth1 Link encap:Ethernet HWaddr 00:10:5A:6D:65:2B
> inet addr:202.x.x.x Bcast:x.x.x.x Mask:255.x.x.x
> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> RX packets:34631374 errors:19158 dropped:0 overruns:8 frame:20407
> TX packets:19921741 errors:0 dropped:0 overruns:0 carrier:0
> collisions:0 txqueuelen:100
> RX bytes:3459249122 (3298.9 Mb) TX bytes:1584689092 (1511.2 Mb)
> Interrupt:5 Base address:0x1400
>
> kita lihat eth0 memakai Interrupt 10 eth1 memakai interrupt 5
>
> kita execute lspci -vvv | grep -A6 Ethernet
>
> 00:0e.0 Ethernet controller: 3Com Corporation 3c905B 100BaseTX [Cyclone]
> (rev 30)
> Subsystem: 3Com Corporation 3C905B Fast Etherlink XL 10/100
> 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: 80 (2500ns min, 2500ns max), cache line size 08
> Interrupt: pin A routed to IRQ 10
> Region 0: I/O ports at 1080 [size=128]
> --
> 00:0f.0 Ethernet controller: 3Com Corporation 3c905B 100BaseTX [Cyclone]
> (rev 30)
> Subsystem: 3Com Corporation 3C905B Fast Etherlink XL 10/100
> 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: 80 (2500ns min, 2500ns max), cache line size 08
> Interrupt: pin A routed to IRQ 5
> Region 0: I/O ports at 1400 [size=128]
>
> kita lihat id 00:0e.0 memakai Interrupt/IRQ 10 dan 00:0f.0 memakai
> Interrupt/IRQ 5
>
> kesimpulannya:
>
> eth0 -> IRQ 10 ->device 00:0e.0 -> mapped to slot fisik PCI nomer 2
> (hasil dump_pirq)
> eth1 -> IRQ 5 -> device 00:0f.0 --> mapped to slot fisik PCI nomer 3
> (hasil dump_pirq)
>
> mudah2ab uraian saya nggak terlalu mbulet.
>
> cmiiw
>
>
> PT.CITRA SARI MAKMUR
> SATELLITE & TERRESTRIAL NETWORK
>
> Connecting the distance - anytime, anywhere, any content
> http://www.csmcom.com
> http://mail.csmcom.com
>
>
>
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