[Xen-devel] pciback.hide sundance

[Christian Placzek <clp@xxxxxxxxxxx>]

Hi,

I am trying to set up a Xen server using two 4-port NIC cards. The
exact type: D-Link DFE 580TX. There are no problems using this cards
under plain linux. The driver is called 'sundance'.

But when I use pciback.hide the DomU can't access this card.

I have had the same task when using the NIC BCM 5708 (NetXtreme II).
I had found a message in 'dmesg':

pciback 0000:09:00.0: Driver tried to write to a read-only
configuration space field at offset 0x4c, size 2. This may be
harmless, but if you have problems with your device:
1) see permissive attribute in sysfs
2) report problems to the xen-devel mailing list along with details
of your device obtained from lspci.
PCI: Enabling device 0000:09:00.0 (0000 -> 0002)
ACPI: PCI Interrupt 0000:09:00.0[A] -> GSI 16 (level, low) -> IRQ
16

I added this line:

         '14e4:164c'   # Broadcom Tigon3 5708 (NetXtreme II)

in the file '/etc/xen/xend-pci-quirks.sxp' in the section tg3. And
everything works fine.


But in this case I have not found any further information about the
pci_config_space_fields.

Could anybody help me?


Information about the DFE 580TX:

# lspci -nn
12:04.0 Ethernet controller [0200]: D-Link System Inc DL10050
Sundance Ethernet [1186:1002] (rev 15)

# lspci -vvv
12:04.0 Ethernet controller: D-Link System Inc DL10050 Sundance
Ethernet (rev 15)
        Subsystem: D-Link System Inc DFE-580TX
        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 (2500ns min, 2500ns max), Cache Line Size: 64 bytes
        Interrupt: pin A routed to IRQ 20
        Region 0: I/O ports at dc80 [size=128]
        Expansion ROM at fc500000 [disabled] [size=64K]
        Capabilities: [50] 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-

The error message:

# dmesg
pciback 0000:12:04.0: Driver tried to write to a read-only
configuration space field at offset 0x54, size 2. This may be
harmless, but if you have problems with your device:
1) see permissive attribute in sysfs
2) report problems to the xen-devel mailing list along with details
of your device obtained from lspci.
PCI: Enabling device 0000:12:04.0 (0000 -> 0001)
ACPI: PCI Interrupt 0000:12:04.0[A] -> GSI 224 (level, low) -> IRQ 20

Kris




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