From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Ward Vandewege <ward@gnu.org>
Cc: xen-devel@lists.xensource.com
Subject: Re: AMD_IOV: IO_PAGE_FALT trying to pass through Mellanox ConnectX HCA (debian testing)
Date: Mon, 31 Jan 2011 15:03:22 -0500 [thread overview]
Message-ID: <20110131200322.GA30160@dumpdata.com> (raw)
In-Reply-To: <20110131195154.GA19572@countzero.vandewege.net>
On Mon, Jan 31, 2011 at 02:51:54PM -0500, Ward Vandewege wrote:
> Hi Konrad,
>
> On Mon, Jan 31, 2011 at 01:45:03PM -0500, Konrad Rzeszutek Wilk wrote:
> > > Hmm, I do have it:
> >
> > Indeed you do. Good!
> >
> > >
> > > # xm dmesg |grep iommu
> > > (XEN) Command line: placeholder iommu=pv,verbose,amd_iommu_debug
> > >
> > > But maybe it's not being picked up?
> >
> > You should see something passthrough in the log.. thought that might
> > be only if you are using Intel VT-d? Not sure.
>
> This seems related:
>
> (XEN) HVM: ASIDs enabled.
> (XEN) HVM: SVM enabled
> (XEN) HVM: Hardware Assisted Paging detected.
> (XEN) AMD-Vi: IOMMU 0 Enabled.
> (XEN) I/O virtualisation enabled
> (XEN) - Dom0 mode: Relaxed
> (XEN) Total of 16 processors activated.
> (XEN) ENABLING IO-APIC IRQs
> (XEN) -> Using new ACK method
>
> I've attached the full xm dmesg output.
>
> > > > you might need to make sure your driver is using the VM_IO flag.
> > > >
> > > > There was some discussion on LKML about this and they proposed
> > > > a patch that wasn't neccessary. Don't remember the details but I can
> > > > look that up next week.
> >
> > Found it.. it was from Vivien but in another thread:
> > http://www.mail-archive.com/linux-rdma@vger.kernel.org/msg06980.html
>
> Ah. Is your
>
> devel/p2m-identity.v4.5
>
> still the one I should test with to see if it fixes this problem? I see
> you've got newer versions (up to v4.7) now too.
It has a bug that I am working on. I would just look for the VM_IO flag
and see if it has been applied somewhere. Or vice-versa - look for where
it has _not_ been applied.
>
> Or has this patch meanwhile been pushed into the kernel?
Not yet.
next prev parent reply other threads:[~2011-01-31 20:03 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-28 18:58 AMD_IOV: IO_PAGE_FALT trying to pass through Mellanox ConnectX HCA (debian testing) Ward Vandewege
2011-01-28 19:27 ` Konrad Rzeszutek Wilk
2011-01-28 20:38 ` Ward Vandewege
2011-01-31 18:45 ` Konrad Rzeszutek Wilk
2011-01-31 19:51 ` Ward Vandewege
2011-01-31 20:03 ` Konrad Rzeszutek Wilk [this message]
2011-02-03 23:24 ` Ward Vandewege
2011-02-07 16:41 ` Konrad Rzeszutek Wilk
2011-02-07 17:03 ` Roedel, Joerg
2011-02-07 17:42 ` Ward Vandewege
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20110131200322.GA30160@dumpdata.com \
--to=konrad.wilk@oracle.com \
--cc=ward@gnu.org \
--cc=xen-devel@lists.xensource.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.