[ipxe-devel] DHCP problems on Intel 82567LM

Christian Hesse list at eworm.de
Fri Apr 25 08:31:16 BST 2014

Hello everybody,

I have an issue with an Intel gigabit controller. This is from a Dell Latitude
E6500, lspci -vv says:

00:19.0 Ethernet controller: Intel Corporation 82567LM Gigabit
Network Connection (rev 03) Subsystem: Dell Device 024f
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr-
DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0
	Interrupt: pin A routed to IRQ 44
	Region 0: Memory at f6ae0000 (32-bit, non-prefetchable) [size=128K]
	Region 1: Memory at f6adb000 (32-bit, non-prefetchable) [size=4K]
	Region 2: I/O ports at efe0 [size=32]
	Capabilities: [c8] Power Management version 2
		Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0
DScale=1 PME- Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
		Address: 00000000fee0300c  Data: 4182
	Capabilities: [e0] PCI Advanced Features
		AFCap: TP+ FLR+
		AFCtrl: FLR-
		AFStatus: TP-
	Kernel driver in use: e1000e
	Kernel modules: e1000e

This is how to reproduce:

* Boot ipxe.lkrn from Grub (so no UNDI involved)
* iPXE gets IP address via DHCP and fetches its config
* Select to boot Linux (kernel version 3.14.1)
* Try to get IP address via DHCP from inside Linux system

DHCP just times out (though mii-tool reports link is ok) and I have to power
off the system to make the network controller work again. No issues booting
the same system from Grub directly or via iPXE from BIOS/UNDI.
main(a){char*c=/*    Schoene Gruesse                         */"B?IJj;MEH"
"CX:;",b;for(a/*    Chris           get my mail address:    */=0;b=c[a++];)
putchar(b-1/(/*               gcc -o sig sig.c && ./sig    */b/42*2-3)*42);}
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