On Thu, 2007-12-27 at 21:37 -0800, Linus Torvalds wrote: > > On Fri, 28 Dec 2007, Benjamin Herrenschmidt wrote: > > > > I have embedded boards where proper CRS operations is critical since the > > kernel brings the PCIe link up itself, and thus is likely to hit devices > > still in the middle of CRS. > > .. but that's perfectly fine. A PCI-E bridge will certainly retry it in > hardware (or it isn't a PCI-E bridge!).
Only a handful of times in many bridges I've seen. > So I'm going to disable that thing. If there is some _other_ PCI-E bridge > that is simply buggy, and cannot handle the hw retry itself or is just > otherwise dodgy, we can have a white-list for cases where it really needs > to be done, but the current code is just bogus. If you disable it, then isn't there also a problem with PCIE->PCI-X bridge which will stop issuing CRS when they should ? (not sure here, I may be a bit confused). Ben. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
