On Wed, Oct 25, 2017 at 10:03:52PM +0300, Leon Romanovsky wrote: > On Wed, Oct 25, 2017 at 01:58:59PM -0400, Doug Ledford wrote: > > On Tue, 2017-10-17 at 18:18 +0300, Leon Romanovsky wrote: > > > From: Noa Osherovich <noaos@xxxxxxxxxxxx> > > > > > > There are root complexes that are able to optimize their > > > performance when incoming data is multiple full cache lines. > > > > > > Scatter end padding is the device's ability to pad the ending of > > > incoming packets (scatter) > > > > I hate this naming. I'm sure people inside of Mellanox have gotten > > used to it, but this feature really has no bearing on scatter/gather at > > all. This is merely final write padding. You might have a > > scatter/gather list, you might have a single buffer. Either way, the > > PCI root complex couldn't care less about scatter/gather or not, it's > > all a byte stream to it. I would be much happier with a name that > > reflected what this really does. > > Scatter has more broad meaning than "scatter/gather list". The name > here came from statistical meaning of "scatter", I'll try to come into > something more descriptive. I don't like it either.. We usually call this 'alignment padding' in CS. Jason -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
