> Roland is the mlx4 sane enough to put the memory that needs > write-combining a prefetchable bar. So several cards can be combined > together?
Yes, it is in a prefetchable BAR. It's the second half of the second BAR in: 0d:00.0 InfiniBand: Mellanox Technologies Unknown device 634a (rev a0) Subsystem: Mellanox Technologies Unknown device 634a Flags: bus master, fast devsel, latency 0, IRQ 16 Memory at fc400000 (64-bit, non-prefetchable) [size=1M] Memory at d8000000 (64-bit, prefetchable) [size=8M] Memory at fc3fe000 (64-bit, non-prefetchable) [size=8K] Capabilities: <access denied> but I'm not sure what you mean about combining several cards? - R. - 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/