Raimonds Cicans wrote: > We have two kinds of PCIe cards: > A1 - based on chip B > A2 - based on same chip B but behind PCIe switch > > Card A1 work flawlessly in any configuration, > but card A2 work flawlessly only if system > lack IOMMU or have disabled IOMMU
In theory, such a switch should be transparent. > Do we have to treat card with PCIe switch in special way? No. But the switch has to work correctly, and driver must be written correctly. Which switch? Which driver? Regards, Clemens -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
