On Mar 7, 2006, at 1:25 PM, Wyse, Chris wrote: > Hi Kumar, > > Thanks for the response. Also, I apologize to the group - I didn't > mean > to CC: the list with the last note. However, I am glad that it got a > response from you. > > Regarding the FPGA address assignment - it doesn't matter at all to > me, > I just need to be able to access it on the PCI once the load is > complete. > > As for the FPGA loader, the intent is that it will make the call to > rescan the PCI after the load is complete. In fact, I intend to > use it > as a way of determining if the load completed successfully, since we > don't have access to the DONE signal from the FPGA (we ran out of GPIO > pins). > > If you missed this link from a previous post, please check it out. It > implements a rescan of the PCI. > > http://marc.theaimsgroup.com/?l=linux-hotplug- > devel&m=101318310111131&w= > 2
I saw this link and felt that the code was doing alot of work that was already handled by the PCI subsystem for you. For example, there isn't a need for you to kmalloc your own dev and go through all the effort. For your case it should be as simple as the following: bus = pci_find_bus(0, bus_of_dev); dev = pci_scan_single_device(bus, devfn); pci_bus_alloc_resource(...); pci_bus_add_devices(bus); You could also look at using the pci_scan_slot() / pci_find_slot() instead of pci_scan_single_device(). - kumar
