Where is the Interrupt for ETH0? How do you enable it?

mrtsufo · n00b Joined: 31 Mar 2005 Posts: 22

Hello all, I am trying to help a firend with his multicast issue( I believe he posted a thread in the last hour). He cannot get Multicast data in ETH0.

Here is the original issue thread:

https://forums.gentoo.org/viewtopic-t-414587-highlight-multicast.html

Well, upon inspecting his "ifconfig" file, I see no interrupt on ETH0. Here is the file:

eth0 Link encap:Ethernet HWaddr 00:0E:0C:6B:E3:A8
inet addr:10.100.0.12 Bcast:10.255.255.255 Mask:255.0.0.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:4750346 errors:0 dropped:0 overruns:0 frame:0
TX packets:1409 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1193393210 (1138.1 Mb) TX bytes:90176 (88.0 Kb)
Base address:0xa000 Memory:db020000-db040000

eth1 Link encap:Ethernet HWaddr 00:90:27:E3:3B:B7
inet addr:192.168.25.74 Bcast:192.168.25.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:264771 errors:0 dropped:0 overruns:0 frame:0
TX packets:192926 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:22788382 (21.7 Mb) TX bytes:27538920 (26.2 Mb)
Interrupt:185

eth2 Link encap:Ethernet HWaddr 00:90:27:E3:3B:B8
inet addr:10.185.4.74 Bcast:10.185.4.255 Mask:255.255.252.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:22363879 errors:0 dropped:0 overruns:0 frame:0
TX packets:18433079 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:4121792201 (3930.8 Mb) TX bytes:1216642092 (1160.2 Mb)
Interrupt:177

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:92233 errors:0 dropped:0 overruns:0 frame:0
TX packets:92233 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:10253894 (9.7 Mb) TX bytes:10253894 (9.7 Mb)

ETH0 shows no interrupt. In any other gentoo machine we look at, ETH0 has an interrupt number. Could this be the issue?

More importantly: How do you enable an interrupt in this situation? FYI: This started happening with the new Gentoo distro.

Thanks. Help needed ASAP.

mrtsufo · n00b Joined: 31 Mar 2005 Posts: 22

Upon further inspection, I found ETH0 and ETH2 share the same interrupt (177), I am a newbie, is that okay?

Here is what things look like for the ethernet devices on machine:

0000:05:07.0 Ethernet controller: Intel Corporation 82541GI/PI Gigabit Ethernet Controller
Subsystem: Intel Corporation PRO/1000 MT Desktop 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 (63750ns min), cache line size 08
Interrupt: pin A routed to IRQ 177
Region 0: Memory at db020000 (32-bit, non-prefetchable) [size=128K]
Region 1: Memory at db000000 (32-bit, non-prefetchable) [size=128K]
Region 2: I/O ports at a000 [size=64]
Expansion ROM at d4100000 [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=0, DMOST=0, DMCRS=0, RSCEM- Capabilities: [f0] Message
Signalled Interrupts: 64bit+ Queue=0/0 Enable-
Address: 0000000000000000 Data: 0000

0000:06:04.0 Ethernet controller: Intel Corporation 82557/8/9 [Ethernet Pro 100] (rev 05)
Subsystem: Intel Corporation EtherExpress PRO/100+ Dual Port 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 (2000ns min, 14000ns max), cache line size 08
Interrupt: pin A routed to IRQ 185
Region 0: Memory at d4000000 (32-bit, prefetchable) [size=4K]
Region 1: I/O ports at 9000 [size=32]
Region 2: Memory at d9000000 (32-bit, non-prefetchable) [size=1M]
Expansion ROM at d8000000 [disabled] [size=1M]
Capabilities: [dc] 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-

0000:06:05.0 Ethernet controller: Intel Corporation 82557/8/9 [Ethernet Pro 100] (rev 05)
Subsystem: Intel Corporation EtherExpress PRO/100+ Dual Port 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 (2000ns min, 14000ns max), cache line size 08
Interrupt: pin A routed to IRQ 177
Region 0: Memory at d4001000 (32-bit, prefetchable) [size=4K]
Region 1: I/O ports at 9400 [size=32]
Region 2: Memory at d9100000 (32-bit, non-prefetchable) [size=1M]
Expansion ROM at d8100000 [disabled] [size=1M]
Capabilities: [dc] 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-

mrtsufo · n00b Joined: 31 Mar 2005 Posts: 22

How do you assign a 1000-base-T card it's own interrupt? I am guessing this is my issue.