Hello,
Thanks for your answers.
I checked again: On the machine with e1000 driver, it was in fact a
machine with 2
e1000 NICs.
However, if I am not wrong, it happened I also saw 2 I/O regions on a
machine with one NIC
(RealTek 8139too) when typing cat /proc/iomem. I am not sure though.
Let me please rephrase my question:
As I understand , the NIC "probe" method is called only ONCE
(also when we have 2 NICs , which are identical so have the same
vendor ID; I hope I am not ).
So:
Could a single call to
pci_request_regions(pdev, driver_name)
result in that we see 2 regions afterwards when running
cat /proc/iomem?
As I understand, indeed this is the case.
Regards,
John
On 7/2/06, Jeff Garzik <[EMAIL PROTECTED]> wrote:
On Sun, Jul 02, 2006 at 10:24:10AM +0300, John Que wrote:
> Hello,
>
> I had noticed that there are machines where
> if I ran cat /proc/iomem I see one I/O memory region for the NIC
> I am using; while there are other machines where
> I see 2 regions for the NIC I/O memory.
>
> For example, on a machine with e1000 NIC adapter,
> I see the following 2 I/O memory regions for the NIC:
> fc9a0000-fc9bffff : 0000:03:04.0
> fc9a0000-fc9bffff : e1000
> fc9c0000-fc9dffff : 0000:03:03.0
> fc9c0000-fc9dffff : e1000
There could be 1001 reasons. Overall, it's not important :)
e1000 driver will reserve all regions made available by the PCI device.
Jeff
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