On Wed, Apr 05, 2017 at 04:43:34PM +0200, Johannes Thumshirn wrote: > On Wed, Apr 05, 2017 at 04:18:52PM +0200, Christoph Hellwig wrote: > > This way we get the behavior right for the non-PCIe transports. > > Could you please share a bit of your minds inner workings for us mere mortals? It's initialized to zero the first time the command is submitted and will then be incremented when queueing a retry.