From: Juergen Gross <jgross-IBi9RG/b67k@public.gmane.org>
To: Oleksandr Tyshchenko
<oleksandr.tyshchenko-hExfYMNmJl/Cnp4W7fqMDg@public.gmane.org>
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
xen-devel-GuqFBffKawuULHF6PoxzQEEOCMrvLtNR@public.gmane.org,
konrad.wilk-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org,
david.vrabel-Sxgqhf6Nn4DQT0dZR+AlfA@public.gmane.org,
boris.ostrovsky-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org,
linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org
Subject: Re: [Xen-devel] [Patch V4 0/3] xen, usb: support pvUSB frontend driver
Date: Fri, 18 Mar 2016 09:32:18 +0100 [thread overview]
Message-ID: <56EBBD12.90708@suse.com> (raw)
In-Reply-To: <CAJEb2DHesrZn0H=d4KVn6sbyXFA8ykdUFMftyAZqbwSKk_JKKQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
Hi Oleksandr,
On 17/03/16 20:43, Oleksandr Tyshchenko wrote:
> Hi Juergen, All.
>
> I would like to apply PVUSB drivers for using in our platform while
> PVUSB stuff doesn't reach upstream.
>
> Unfortunately, I couldn't find more recent version of "kernel based"
> backend driver in mailing list.
> I have found it in v0 only.
>
> [Xen-devel] [PATCH 0/4] xen, usb: support pvUSB drivers
> <http://lists.xenproject.org/archives/html/xen-devel/2015-02/msg03245.html>
>
> Can I use this frontend driver (v4) together with kernel based backend
> driver (v0)?
> Are they fully compatible with each other?
I didn't send any further version as it was regarded to be better to
provide such a backend via qemu (patches are being reviewed right now,
I sent them last week).
Regarding compatibility: should work. I've tested all possible
combinations of frontends/backends with both my upstream variants
you are referring to and the SUSE SLE variants which are kernel-xen
specific and SUSE-only.
You should be aware, however, that there might be some bugs in the
v0 backend driver. It was tested by me only.
> Thank you.
You're welcome. :-)
Juergen
>
> On Mon, Jul 20, 2015 at 8:13 AM, Juergen Gross <jgross-IBi9RG/b67k@public.gmane.org
> <mailto:jgross-IBi9RG/b67k@public.gmane.org>> wrote:
>
> Ping?
>
>
> On 06/23/2015 08:53 AM, Juergen Gross wrote:
>
> This series adds XEN guest pvUSB support. With pvUSB it is
> possible to
> use physical USB devices from a XEN domain.
>
> The support consists of a frontend in form of a virtual hcd
> driver in
> the unprivileged domU passing I/O-requests to the backend in a
> driver
> domain (usually Dom0). The backend is not part of this patch series,
> as it will be supported via qemu.
>
> The code is taken (and adapted) from the original pvUSB
> implementation
> done for Linux 2.6 in 2008 by Fujitsu.
>
> Normal operation of USB devices by adding and removing them
> dynamically
> to/from a domain has been tested using various USB devices (USB 1.1,
> 2.0 and 3.0). The pvUSB backend for these tests was a SUSE SLES Dom0
> with a kernel based backend driver.
>
> Changes in V4:
> - remove sysfs file from frontend, as it violated the "one value
> per file"
> rule and didn't serve any real purpose.
>
> Changes in V3:
> - move frontend to drivers/usb/host and rename it to xen-hcd.
> - changed name prefixes in patch 1 to "xenusb" as requested by Greg
> - use __u<n> types rather than uint<n>_t as requested by Greg
>
> Changes in V2:
> - removed backend, as it can be implemented in user land
> - added some access macros and definitions to the pvUSB interface
> description to make it independant from linux kernel USB
> internals
> - adapted frontend to newer kernel version and use new pvUSB
> interface macros
> - set port status in one chunk as suggested by Oliver Neukum
>
>
> Juergen Gross (3):
> usb: Add Xen pvUSB protocol description
> usb: Introduce Xen pvUSB frontend (xen hcd)
> xen: add Xen pvUSB maintainer
>
> MAINTAINERS | 8 +
> drivers/usb/host/Kconfig | 11 +
> drivers/usb/host/Makefile | 1 +
> drivers/usb/host/xen-hcd.c | 1594
> ++++++++++++++++++++++++++++++++++++++
> include/xen/interface/io/usbif.h | 252 ++++++
> 5 files changed, 1866 insertions(+)
> create mode 100644 drivers/usb/host/xen-hcd.c
> create mode 100644 include/xen/interface/io/usbif.h
>
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel-GuqFBffKawuEi8DpZVb4nw@public.gmane.org <mailto:Xen-devel-GuqFBffKawuEi8DpZVb4nw@public.gmane.org>
> http://lists.xen.org/xen-devel
>
>
>
>
> --
>
> Oleksandr Tyshchenko | Embedded Dev
> GlobalLogic
> www.globallogic.com <http://www.globallogic.com/>
> <http://www.globallogic.com/>
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next prev parent reply other threads:[~2016-03-18 8:32 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-23 6:53 [Patch V4 0/3] xen, usb: support pvUSB frontend driver Juergen Gross
[not found] ` <1435042405-14235-1-git-send-email-jgross-IBi9RG/b67k@public.gmane.org>
2015-06-23 6:53 ` [Patch V4 1/3] usb: Add Xen pvUSB protocol description Juergen Gross
2015-07-22 23:46 ` Greg KH
2015-07-23 4:04 ` Juergen Gross
[not found] ` <55B067D7.3030904-IBi9RG/b67k@public.gmane.org>
2015-07-23 4:36 ` Greg KH
[not found] ` <20150723043653.GA31524-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2015-07-23 6:46 ` Juergen Gross
[not found] ` <55B08DB9.60902-IBi9RG/b67k@public.gmane.org>
2015-07-23 9:38 ` [Xen-devel] " David Vrabel
2015-07-23 19:08 ` Greg KH
2015-07-23 21:29 ` Pasi Kärkkäinen
2015-07-24 3:51 ` Juergen Gross
[not found] ` <55B1B628.7090200-IBi9RG/b67k@public.gmane.org>
2015-07-24 18:57 ` Greg KH
2015-07-24 19:25 ` Konrad Rzeszutek Wilk
[not found] ` <1435042405-14235-2-git-send-email-jgross-IBi9RG/b67k@public.gmane.org>
2015-07-23 9:39 ` [Xen-devel] " David Vrabel
2015-06-23 6:53 ` [Patch V4 2/3] usb: Introduce Xen pvUSB frontend (xen hcd) Juergen Gross
[not found] ` <1435042405-14235-3-git-send-email-jgross-IBi9RG/b67k@public.gmane.org>
2015-07-23 9:47 ` David Vrabel
2015-06-23 6:53 ` [Patch V4 3/3] xen: add Xen pvUSB maintainer Juergen Gross
2015-07-20 5:13 ` [Patch V4 0/3] xen, usb: support pvUSB frontend driver Juergen Gross
2016-03-17 19:43 ` Oleksandr Tyshchenko
[not found] ` <CAJEb2DHesrZn0H=d4KVn6sbyXFA8ykdUFMftyAZqbwSKk_JKKQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-03-18 8:32 ` Juergen Gross [this message]
2016-03-18 12:28 ` Oleksandr Tyshchenko
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