Matt Walburn wrote: > > * NIU Hybrid I/O* > > > As I remember, this is around being able to present a Crossbow > virtual NIC directly to an LDOM without having to traverse a > VSW. Do I have that right, or does this not depend on Crossbow > integration with S10? > > > This does not directly depend on Crossbow but on the NIU (Network > Interface > Unit) available on the UltraSPARC-T2 cpu. This provides the > ability for a guest > domain to directly access a physical network interface owned by an > I/O domain. > > > Ah... so would Crossbow then effectively give you a larger number of > interfaces that you could present directly do your LDOMs then? We have integrated LDoms network functionality to work with Crossbow, with this now we leverage both h/w and s/w switching provided by the Crossbow. Note, the VSW still exists in the layers of communication, but with reduced functionality, mostly managing and forwarding packets to the Guest domains.
NIU HybridIO feature is a new LDoms feature with which we can directly loan the a few DMA channels to an vnet in a Guest domain. That is, that the packets are directly delivered via h/w to the guest domain without any proxy communication via VSW. The features provides increased network bandwith to a guest with low latency and reduced cpu overhead. Like Alex mentioned, this feature is limited to NIU in UltraSPARC-T2 based platforms. Note, the NIU HybridIO feature has no direct relation with Crossbow features, but this feature has been ported to work with Crossbow also. -Raghuram. > > Another major feature coming with 1.1 (not listed below) is cold > and warm > migration of guest domains. > > > I'm certainly interested in that as well! > > Thanks, > Matt > > On Fri, Dec 19, 2008 at 3:06 AM, klarien <klarien at gmail.com > <mailto:klarien at gmail.com> <mailto:klarien at gmail.com > <mailto:klarien at gmail.com>>> wrote: > > list of goodies i have un-officially collated > > 1. higher rev so it must be better - right :-) > 2. some new command flags (was -e in 1.0.3 - can't remember) > 3. VLAN support on vsw's > 4. aggregate interface support > 4. NIU Hybrid I/O > 6. Virtual I/O dynamic reconfiguration > 7. multi-pathing using multiple vdisk servers > 8. ability to install Solaris on a virtual disk backed by a > slice > 9. iostat(1M) support in guest domains > 10. improved interrupt redistribution > 11. increased virtual networking performance due to > improved locking. > > hopefully some fixes for the "slow as molasses" problem > with SVM > backed volumes if not get t-patch t139562-02 > > better checking when allocating back-end storage devices. > > I think Solaris 10u6 is also pretty much a pre-requite for 1.1 > although I have got i t working ok on u5 and don't foget the > firmware updates !!! > > anybdy else ? > > thanks > -- > This message posted from opensolaris.org > <http://opensolaris.org> <http://opensolaris.org> > _______________________________________________ > ldoms-discuss mailing list > ldoms-discuss at opensolaris.org > <mailto:ldoms-discuss at opensolaris.org> > <mailto:ldoms-discuss at opensolaris.org > <mailto:ldoms-discuss at opensolaris.org>> > > http://mail.opensolaris.org/mailman/listinfo/ldoms-discuss > > > > > ------------------------------------------------------------------------ > > > > _______________________________________________ > ldoms-discuss mailing list > ldoms-discuss at opensolaris.org > <mailto:ldoms-discuss at opensolaris.org> > http://mail.opensolaris.org/mailman/listinfo/ldoms-discuss > > > ------------------------------------------------------------------------ > > _______________________________________________ > ldoms-discuss mailing list > ldoms-discuss at opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/ldoms-discuss >
