From mboxrd@z Thu Jan 1 00:00:00 1970 From: maus Subject: Re: Are there source codes for Xen-IB? Date: Wed, 25 May 2011 21:40:15 +0800 Message-ID: References: <1306147218.20576.79.camel@zakaz.uk.xensource.com> <1306232138.20576.147.camel@zakaz.uk.xensource.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0915620493==" Return-path: In-Reply-To: <1306232138.20576.147.camel@zakaz.uk.xensource.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Ian Campbell Cc: "xen-devel@lists.xensource.com" , "Fajar A. Nugraha" List-Id: xen-devel@lists.xenproject.org --===============0915620493== Content-Type: multipart/alternative; boundary=bcaec54fb0c63500c004a419d8d7 --bcaec54fb0c63500c004a419d8d7 Content-Type: text/plain; charset=ISO-8859-1 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? Yi-Man 2011/5/24 Ian Campbell > 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. > > > --bcaec54fb0c63500c004a419d8d7 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable

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 InfiniBan= d 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 d= river as modules for dom0/domU" to do?
And since I don't know h= ow to I do first for Xen-IB, is there any tutorial for Xen-IB?
Or does X= en build-in support IB currently?

Yi-Man

2011/5/24 Ian Campbell <Ian.Campbell@eu.citrix.com&g= t;
Please do not top post.

On Tue, 2011-05-24 at 11:07 +0100, maus wrote:
>= ; Hi,
>
> There many file in =A0http://xenbits.xensource.com/e= xt/xen-smartio/ ,
> which should I use for Xen-IB?
> Use the following three?
>= ; Updated defconfig to include infiniband driver as modules for
> dom= 0/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 o= f
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 avai= lable 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.



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