Re: [PATCH/RFC 0/4] dma ops and virtio

2015-11-11 Thread Cornelia Huck
On Thu, 5 Nov 2015 09:11:06 +0100 Cornelia Huck wrote: > On Wed, 4 Nov 2015 10:14:11 -0800 > Andy Lutomirski wrote: > > > On Wed, Nov 4, 2015 at 9:52 AM, Cornelia Huck > > wrote: > > > On Wed, 4 Nov 2015 15:29:23 +0100

Re: [PATCH/RFC 0/4] dma ops and virtio

2015-11-05 Thread Cornelia Huck
On Wed, 4 Nov 2015 10:14:11 -0800 Andy Lutomirski wrote: > On Wed, Nov 4, 2015 at 9:52 AM, Cornelia Huck > wrote: > > On Wed, 4 Nov 2015 15:29:23 +0100 > > Cornelia Huck wrote: > > > >> I'm currently suspecting some

Re: [PATCH/RFC 0/4] dma ops and virtio

2015-11-04 Thread Cornelia Huck
On Tue, 3 Nov 2015 10:45:12 -0800 Andy Lutomirski wrote: > On Tue, Nov 3, 2015 at 9:59 AM, Cornelia Huck > wrote: > > It's just failing very early in the setup phase. As it works for me > > with a kvm setup, I'm suspecting some error in qemu's

Re: [PATCH/RFC 0/4] dma ops and virtio

2015-11-04 Thread Cornelia Huck
On Wed, 4 Nov 2015 15:29:23 +0100 Cornelia Huck wrote: > I'm currently suspecting some endianness issues, probably with the ecw > accesses, which is why I'd be interested in your trace information (as > I currently don't have a LE test setup at hand.) I think I've got

Re: [PATCH/RFC 0/4] dma ops and virtio

2015-11-04 Thread Andy Lutomirski
On Wed, Nov 4, 2015 at 9:52 AM, Cornelia Huck wrote: > On Wed, 4 Nov 2015 15:29:23 +0100 > Cornelia Huck wrote: > >> I'm currently suspecting some endianness issues, probably with the ecw >> accesses, which is why I'd be interested in your

Re: [PATCH/RFC 0/4] dma ops and virtio

2015-11-03 Thread Christian Borntraeger
Am 02.11.2015 um 21:23 schrieb Andy Lutomirski: > On Mon, Nov 2, 2015 at 3:16 AM, Cornelia Huck > wrote: >> On Fri, 30 Oct 2015 13:33:07 -0700 >> Andy Lutomirski wrote: >> >>> On Fri, Oct 30, 2015 at 1:25 AM, Cornelia Huck

Re: [PATCH/RFC 0/4] dma ops and virtio

2015-11-03 Thread Andy Lutomirski
On Tue, Nov 3, 2015 at 12:14 AM, Christian Borntraeger wrote: > Am 02.11.2015 um 21:23 schrieb Andy Lutomirski: >> On Mon, Nov 2, 2015 at 3:16 AM, Cornelia Huck >> wrote: >>> On Fri, 30 Oct 2015 13:33:07 -0700 >>> Andy Lutomirski

Re: [PATCH/RFC 0/4] dma ops and virtio

2015-11-03 Thread Cornelia Huck
On Mon, 2 Nov 2015 12:23:25 -0800 Andy Lutomirski wrote: > No change. I'm stumped :( Here's what I see: (...) > CH DBG: css_interpret_ccw: cmd_code=e4 > CH DBG: css_interpret_ccw: ret=0 sense id -> works (...) > CH DBG: css_interpret_ccw: cmd_code=3 > CH DBG:

Re: [PATCH/RFC 0/4] dma ops and virtio

2015-11-03 Thread Andy Lutomirski
On Tue, Nov 3, 2015 at 9:59 AM, Cornelia Huck wrote: > It's just failing very early in the setup phase. As it works for me > with a kvm setup, I'm suspecting some error in qemu's emulation code, > which is unfortunately not my turf. > That should be easy to rule out.

Re: [PATCH/RFC 0/4] dma ops and virtio

2015-11-02 Thread Andy Lutomirski
On Mon, Nov 2, 2015 at 3:16 AM, Cornelia Huck wrote: > On Fri, 30 Oct 2015 13:33:07 -0700 > Andy Lutomirski wrote: > >> On Fri, Oct 30, 2015 at 1:25 AM, Cornelia Huck >> wrote: >> > On Thu, 29 Oct 2015 15:50:38 -0700 >> >

Re: [PATCH/RFC 0/4] dma ops and virtio

2015-11-02 Thread Cornelia Huck
On Fri, 30 Oct 2015 13:33:07 -0700 Andy Lutomirski wrote: > On Fri, Oct 30, 2015 at 1:25 AM, Cornelia Huck > wrote: > > On Thu, 29 Oct 2015 15:50:38 -0700 > > Andy Lutomirski wrote: > > > >> Progress! After getting that

Re: [PATCH/RFC 0/4] dma ops and virtio

2015-10-30 Thread Cornelia Huck
On Thu, 29 Oct 2015 15:50:38 -0700 Andy Lutomirski wrote: > Progress! After getting that sort-of-working, I figured out what was > wrong with my earlier command, and I got that working, too. Now I > get: > > qemu-system-s390x -fsdev >

Re: [PATCH/RFC 0/4] dma ops and virtio

2015-10-30 Thread Andy Lutomirski
On Fri, Oct 30, 2015 at 1:25 AM, Cornelia Huck wrote: > On Thu, 29 Oct 2015 15:50:38 -0700 > Andy Lutomirski wrote: > >> Progress! After getting that sort-of-working, I figured out what was >> wrong with my earlier command, and I got that working,

Re: [PATCH/RFC 0/4] dma ops and virtio

2015-10-29 Thread Andy Lutomirski
On Wed, Oct 28, 2015 at 5:04 PM, Christian Borntraeger wrote: > Am 29.10.2015 um 07:22 schrieb Andy Lutomirski: >> On Tue, Oct 27, 2015 at 3:48 PM, Christian Borntraeger >> wrote: >>> This is an RFC to check if I am on the right track. There >>>

Re: [PATCH/RFC 0/4] dma ops and virtio

2015-10-28 Thread Andy Lutomirski
On Tue, Oct 27, 2015 at 3:48 PM, Christian Borntraeger wrote: > This is an RFC to check if I am on the right track. There > are some attempts to unify the dma ops (Christoph) as well > as some attempts to make virtio use the dma API (Andy). > > At todays discussion at the

Re: [PATCH/RFC 0/4] dma ops and virtio

2015-10-28 Thread Christian Borntraeger
Am 29.10.2015 um 07:22 schrieb Andy Lutomirski: > On Tue, Oct 27, 2015 at 3:48 PM, Christian Borntraeger > wrote: >> This is an RFC to check if I am on the right track. There >> are some attempts to unify the dma ops (Christoph) as well >> as some attempts to make virtio

[PATCH/RFC 0/4] dma ops and virtio

2015-10-27 Thread Christian Borntraeger
This is an RFC to check if I am on the right track. There are some attempts to unify the dma ops (Christoph) as well as some attempts to make virtio use the dma API (Andy). At todays discussion at the kernel summit, we concluded that we want to use the same code on all platforms, whereever

Re: [PATCH/RFC 0/4] dma ops and virtio

2015-10-27 Thread Joerg Roedel
Hi Christian, On Tue, Oct 27, 2015 at 11:48:47PM +0100, Christian Borntraeger wrote: > Here is a very quick (still untested) shot at providing the s390 part: > - patch1: dummy dma ops, inspired by the alpha code > - patch2: replace some of the alpha functions with the dummy ones > - patch3: allow