On Thu, 2017-07-13 at 20:14 +1000, Russell Stuart wrote: > On Thu, 2017-07-13 at 05:20 -0400, Tom H wrote: > > Stateless "/etc". > > > > Systems with multiple NICs where the order in which they're > > recognized by the kernel can vary. > > I asked for a person. I guess I really asking for a use case. > "Stateless /etc" isn't either. > > I've never seen the kernel vary the order it enumerates a PCI bus. > This isn't an accident. Quoting "According to: "PCI Express System > Architecture" R. Budruk, D. Anderson, T. Shanley, ADDISON-WESLEY > DEVELOPER´S PRESS, 2003. ISBN: 0-321-15630-7, page 743": > > The specification states that the enumeration software must > perform a depth-first search, so before proceeding to discover > additional functions/ devices on bus 0, it must proceed to search > bus 1. [...] That does not define the order in which *drivers* are loaded and bound to devices. Further, driver binding is no longer serialised in Linux. Ben. -- Ben Hutchings Design a system any fool can use, and only a fool will want to use it.
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