Re: Multi-function PCI devices

Tim Waugh
2001-04-07T19:01:32Z

[-- Attachment #1: Type: text/plain, Size: 865 bytes --]

On Sat, Apr 07, 2001 at 11:04:38AM +0200, Gérard Roudier wrote:

> Given your description, this board is certainly not a multi-fonction PCI
> device. Multi-function PCI devices provide separate resources for each
> function in a way that allows each function to be driven by separate
> software drivers.

Yes, but the vendor screwed it up (probably to save money). This is
_very_ common. It is very unusual to have a multifunction I/O card
that gets this right (in fact Lava is the only one I can think of
off-hand).

> Band-aiding the kernel code in order to cope with such brain-deaded
> hardware would be a pity, in my opinion. Burden must stay where it
> is deserved.

If we have to do this, then Gunther's approach (multifunc_quirks or
whatever) looks a lot better than having a separate driver for every
single multi-IO card.

Tim.
*/

[-- Attachment #2: Type: application/pgp-signature, Size: 232 bytes --]