Tejun Heo wrote: > so, it basically behaves like level triggered IRQ latch for ports, > which also creates an easy-to-miss requirement for MSI implementation > where the controller should generate a new MSI message when the driver > clears some of the IRQ pending bits but not all. Oops, confused. The easy-to-miss requirement is the controller needing to resend the message if the irq_stat is cleared but port IRQ is still pending. Resending on partial clear is always necessary. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html