On Tue, Nov 13, 2007 at 10:08:48PM +0100, Peter Steinmeyer wrote: > Hallo! > I'm wondering if I could do a manual pci bus reset from kernel (or userspace) > with kernel 2.6.18. > The background is as follows: We have a self build pci-express card with > FPGA chip mounted on it. The FPGA can be programmend via an additional serial > interface, but the system becomes not aware of the changes made on the card. > On reloading my device driver module I get the same address mapping as before > but if I access the registers the behaviour is undefined. > I think this is because the FPGA disconnects from the pci bus while > programming. So I have to reboot the machine to reinit. > Is there a way to tell the kernel respectively the pci subsystem to do a > pci-bus config scan to recognize the changes without rebooting? You could try PCI hotplug with the "Fake PCI Hotplug driver" (HOTPLUG_PCI_FAKE). Erik -- They're all fools. Don't worry. Darwin may be slow, but he'll eventually get them. -- Matthew Lammers in alt.sysadmin.recovery
Attachment:
signature.asc
Description: Digital signature
