> Yeah, I forgot I have a #ifndef writeq, then defined the x86_64 version > of that. I've not tested on x86, so I'm not sure whether it works. > How are you handling writeq when its not defined, as the case in x86? Write two writel() inside a spinlock to avoid any transactions in the middle (the HW I'm dealing with can deal with two 32-bit transactions, as long as nothing comes in the middle). If your hardware demands a single 64-bit transaction, you may be in trouble, because I'm not sure all 32-bit systems can generate such a PCIe transaction. You can see include/linux/mlx4/doorbell.h for exactly what I did. - R. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html