Re: Are there source codes for Xen-IB?

[maus <maustudent@gmail.com>]

[-- Attachment #1.1: Type: text/plain, Size: 2700 bytes --]

Hi,

I know use IP-over-IB can let KVM or Xen use IB, but what I have to do is
like Xen-IB. Not just use IB.
So, there is no toturial for Xen-IB,right?


Yi-Man



2011/5/26 Ian Campbell <Ian.Campbell@eu.citrix.com>

> On Wed, 2011-05-25 at 14:40 +0100, maus wrote:
> > Hi,
> >
> > I have a project which is make KVM use InfiniBand.
> > However, since Xen can use InfiniBand through Xen-IB, I want to try to
> > make Xen use InfiniBand first.
> > Through that way, I think it may give me some idea about how to make
> > KVM use InfiniBand.
> > So, as you said, I just use "Updated defconfig to include infiniband
> > driver as modules for dom0/domU" to do?
> > And since I don't know how to I do first for Xen-IB, is there any
> > tutorial for Xen-IB?
> > Or does Xen build-in support IB currently?
>
> I'm not sure what IB support you expect Xen to have over and above the
> driver and utils support, which are functions of the dom0 kernel and
> distro and not the hypervisor.
>
> Have you got IB working on a native system? I expect that if you do that
> then Xen or KVM will be able to make use of it basically for free, i.e.
> configure a VIF on an IP-over-IB bridge or use a local IP-over-IB
> address in dom0 for migration etc etc.
>
> Ian.
>
> >
> > Yi-Man
> >
> >
> >
> > 2011/5/24 Ian Campbell <Ian.Campbell@eu.citrix.com>
> >         Please do not top post.
> >
> >         On Tue, 2011-05-24 at 11:07 +0100, maus wrote:
> >         > Hi,
> >         >
> >         > There many file in
> >          http://xenbits.xensource.com/ext/xen-smartio/ ,
> >         > which should I use for Xen-IB?
> >         > Use the following three?
> >         > Updated defconfig to include infiniband driver as modules
> >         for
> >         > dom0/domU
> >         > Updating drivers/infiniband to latest. Should shrink size of
> >         > xen_ib.patch in
> >         > Add support for Infiniband into Xen
> >
> >
> >         Again, these changesets are >5 years old and have not been
> >         looked at or
> >         maintained since -- I am very sceptical that you will find
> >         anything of
> >         use on a modern Xen system in there.
> >
> >         I expect that IB support in the kernels we currently use for
> >         dom0 is
> >         vastly improved over what was available in the 2.6.16 tree
> >         referenced in
> >         the above repository. Perhaps you don't even need anything
> >         special
> >         outside of what is available in the upstream dom0 kernel.
> >
> >         Perhaps if you explain what you are actually trying to achieve
> >         then
> >         people will be able to better advise you?
> >
> >         Ian.
> >
> >
> >
>
>
>

[-- Attachment #1.2: Type: text/html, Size: 3608 bytes --]

[-- Attachment #2: Type: text/plain, Size: 138 bytes --]

_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel