From: Albert Cahalan (albert@users.sourceforge.net)
Date: Wed Jun 04 2003 - 22:21:43 EST

I notice that /proc/bus/pci doesn't offer a sane
interface for multiple PCI domains and choice of BAR.
What do people think of this?

bus/pci/00/00.0 -> ../hose0/bus0/dev0/fn0/config-space

Then with some mmap flags, the nasty ioctl() stuff
won't be needed anymore. It can die during 2.7.xx
development. If MAP_MMIO isn't generally acceptable,
then it could be via filename suffixes. (eeew, IMHO)

One remaining problem is permission. Any complaints
about implementing chmod() for those? Since this
does bypass capabilities, a mount option might be
used to enable it.

As alternatives to /proc changes, a distinct filesystem
could be developed or sysfs could be abused.

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This archive was generated by hypermail 2b29 : Sat Jun 07 2003 - 22:00:26 EST