Hello Don!
Am Tue, 13 Dec 2011 01:21:41 +0100
schrieb Andreas Hartmann <andihartmann@xxxxxxxxxxxxxxx>:
[...]
> Ok. If I remove the intel card and put in instead a 32 bit PCIe card
> like TP-Link TG-3468, I could assign each of these two cards to
> different VMs.
>
> Is this correct?
No - it isn't correct - but don't now why!
1. The legacy pci card, even if it's the only legacy one, can't be
used, because it crashes the machine after removing the VM (see other
post).
2. The TP-Link TG-3468 card crashes the host at the moment of "virsh
start VM".
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 01)
Subsystem: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller
Flags: bus master, fast devsel, latency 0, IRQ 43
I/O ports at de00 [size=256]
Memory at fdbff000 (64-bit, non-prefetchable) [size=4K]
[virtual] Expansion ROM at fda00000 [disabled] [size=128K]
Capabilities: [40] Power Management version 2
Capabilities: [48] Vital Product Data
Capabilities: [50] MSI: Enable+ Count=1/2 Maskable- 64bit+
Capabilities: [60] Express Endpoint, MSI 00
Capabilities: [84] Vendor Specific Information: Len=4c <?>
Capabilities: [100] Advanced Error Reporting
Capabilities: [12c] Virtual Channel
Capabilities: [148] Device Serial Number f1-11-00-00-68-4c-e0-00
Capabilities: [154] Power Budgeting <?>
Kernel driver in use: r8169
04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06)
Subsystem: Giga-byte Technology GA-EP45-DS5 Motherboard
Flags: bus master, fast devsel, latency 0, IRQ 44
I/O ports at ce00 [size=256]
Memory at fd6ff000 (64-bit, prefetchable) [size=4K]
Memory at fd6f8000 (64-bit, prefetchable) [size=16K]
Capabilities: [40] Power Management version 3
Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [70] Express Endpoint, MSI 01
Capabilities: [b0] MSI-X: Enable- Count=4 Masked-
Capabilities: [d0] Vital Product Data
Capabilities: [100] Advanced Error Reporting
Capabilities: [140] Virtual Channel
Capabilities: [160] Device Serial Number 12-34-56-78-12-34-56-78
Kernel driver in use: r8169
First problem: I don't know, how to distinguish these two cards. They
use both the same module and they have equal PCI-ID's (but different
bus ID's).
If the desired one (03:00.0) is manually unbound with these lines
echo "10ec 8168" > /sys/bus/pci/drivers/pci-stub/new_id
echo "0000:03:00.0" > /sys/bus/pci/devices/0000\:03\:00.0/driver/unbind
echo "0000:03:00.0" > /sys/bus/pci/drivers/pci-stub/bind
both devices are unbound (this is definitely wrong) and both devices
use the same IRQ (as they were managed by r8169, they had different
IRQs):
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 01)
Subsystem: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller
Flags: fast devsel, IRQ 17
I/O ports at de00 [size=256]
Memory at fdbff000 (64-bit, non-prefetchable) [size=4K]
[virtual] Expansion ROM at fda00000 [disabled] [size=128K]
Capabilities: [40] Power Management version 2
Capabilities: [48] Vital Product Data
Capabilities: [50] MSI: Enable- Count=1/2 Maskable- 64bit+
Capabilities: [60] Express Endpoint, MSI 00
Capabilities: [84] Vendor Specific Information: Len=4c <?>
Capabilities: [100] Advanced Error Reporting
Capabilities: [12c] Virtual Channel
Capabilities: [148] Device Serial Number f1-11-00-00-68-4c-e0-00
Capabilities: [154] Power Budgeting <?>
Kernel driver in use: pci-stub
04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06)
Subsystem: Giga-byte Technology GA-EP45-DS5 Motherboard
Flags: fast devsel, IRQ 17
I/O ports at ce00 [size=256]
Memory at fd6ff000 (64-bit, prefetchable) [size=4K]
Memory at fd6f8000 (64-bit, prefetchable) [size=16K]
Capabilities: [40] Power Management version 3
Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
Capabilities: [70] Express Endpoint, MSI 01
Capabilities: [b0] MSI-X: Enable- Count=4 Masked-
Capabilities: [d0] Vital Product Data
Capabilities: [100] Advanced Error Reporting
Capabilities: [140] Virtual Channel
Capabilities: [160] Device Serial Number 12-34-56-78-12-34-56-78
Kernel driver in use: pci-stub
Second problem:
If I do a "modprobe r8169", both devices are "adressed". How can I
address just one of both?
Sorry for all of these questions :-). I really would be glad, to get an
answer!
Kind regards,
Andreas Hartmann
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