On Tue, Apr 05, 2011 at 08:29:03AM -0700, Stephen Hemminger wrote: Just a full quote for the list, I guess Stephen's mail hasn't reached anyone but me due to subscribers-only policy on LAD.
> > On 04/05/11 11:53, Christoph Kuhr wrote: > > > > Hi! > > > > > apparently the ASUS 890FX mainboard has a yukon 88e8059 nic, which i > > > have not verified yet. > > > > To be precise, it's only the Crosshair IV Formular 890FX, all others > > either have Realtek or Intel. > > > > > the marvell yukon 88e8059 specs say this nic is avb ready. > > > > Indeed, at least if we believe the little PDF provided by Marvell. > > > > I don't know exactly what this means, it seems they support multiple > > RX/TX queues, so AVB packages might end up in a priority lane while bulk > > traffic is handled via a different queue. > > It has 2 Tx queues, but one is not used because it really doesn't > offer any benefit. The sync Tx queue doesn't fit the Linux > multiple Tx queue model. > > > They also support hardware timestamping. The Linux driver in question is > > sky2, in sky2.h, they already have some PTP related defines, but the > > sky2.c doesn't make use of them. > > The hardware timestamping is also disabled in Linux for a couple > of reasons. First the wraparound of the timestamp is not well > documented, but more importantly timestamping and RSS hash can > not be combined and RSS hash seemed more useful. -- mail: a...@thur.de http://adi.thur.de PGP/GPG: key via keyserver _______________________________________________ Linux-audio-dev mailing list Linux-audio-dev@lists.linuxaudio.org http://lists.linuxaudio.org/listinfo/linux-audio-dev
