Messages in this thread | | | From | Hans-Jürgen Koch <> | Subject | Re: Userspace I/O driver core | Date | Thu, 14 Dec 2006 11:25:14 +0100 |
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Am Donnerstag, 14. Dezember 2006 10:44 schrieb Avi Kivity:
> > I understand one still has to write a kernel driver to shut up the irq. > How about writing a small bytecode interpreter to make event than > unnecessary? > > The userspace driver would register a couple of bytecode programs: > is_interrupt_pending() and disable_interrupt(), which the uio framework > would call when the interrupt fires. > > The bytecode could reuse net/core/filter.c, with the packet replaced by > the mmio or ioregion, or use something new. >
I think this would be overkill. The kernel module you have to write is _really_ very simple. And it has to be written only once, so even a manufacturer who employs no experienced kernel developers can easily outsource that task.
Hans
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