Grettings all,
The Linux-iSCSI.org Target v3.0 HOWTO using the new configfs enabled
generic target subsystem python CLI has been released and is up and
running on v2.6.30 of the Linux Kernel in x86_64 KVM (Debian), x86_64
bare-metal (SLES) and PPC64 (Fedora PS3) hosts! The HOWTO entry can be
foun
From: Nicholas Bellinger
This patch converts tcm_vhost to use modern concurrency managed workqueues to
offload setup of tcm_vhost_cmd descriptors to a kworker CPU thread that is
running on the same core as the vhost thread pulling elements off the virtqueue
from within vhost_scsi_handle_vq().
Th
Hi folks,
On Wed, 2012-07-04 at 18:52 -0700, Nicholas A. Bellinger wrote:
>
> To give an idea of how things are looking on the performance side, here
> some initial numbers for small block (4k) mixed random IOPs using the
> following fio test setup:
> fio randrw workload |
From: Nicholas Bellinger
This QEMU patch sets VirtIOSCSIConfig->max_target=0 for vhost-scsi operation
to restrict virtio-scsi LLD guest scanning to max_id=0 (a single target ID
instance) when connected to individual tcm_vhost endpoints as requested by
Paolo.
This ensures that virtio-scsi LLD onl
From: Nicholas Bellinger
Hi folks,
The following is a RFC-v2 series of tcm_vhost target fabric driver code
currently in-flight for-3.6 mainline code.
After last week's developments along with the help of some new folks, the
changelog v1 -> v2 so far looks like:
*) Fix drivers/vhost/test.c to u
: Michael S. Tsirkin
Cc: Paolo Bonzini
Cc: Asias He
Signed-off-by: Nicholas A. Bellinger
---
drivers/vhost/net.c |4 ++--
drivers/vhost/test.c |4 ++--
drivers/vhost/vhost.h |3 ++-
3 files changed, 6 insertions(+), 5 deletions(-)
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
From: Stefan Hajnoczi
The vhost work queue allows processing to be done in vhost worker thread
context, which uses the owner process mm. Access to the vring and guest
memory is typically only possible from vhost worker context so it is
useful to allow work to be queued directly by users.
Curren
Hajnoczi
Cc: Zhi Yong Wu
Cc: Michael S. Tsirkin
Cc: Paolo Bonzini ,
Signed-off-by: Nicholas A. Bellinger
---
include/linux/vhost.h |9 +
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/include/linux/vhost.h b/include/linux/vhost.h
index e847f1e..33b313b 100644
--- a
**
+ * Vhost kernel TCM fabric driver for virtio SCSI initiators
+ *
+ * (C) Copyright 2010-2012 RisingTide Systems LLC.
+ * (C) Copyright 2010-2012 IBM Corp.
+ *
+ * Licensed to the Linux Foundation under the General Public License (GPL)
version 2
From: Nicholas Bellinger
This patch changes virtio-scsi to use a new virtio_driver->scan() callback
so that scsi_scan_host() can be properly invoked once virtio_dev_probe() has
set add_status(dev, VIRTIO_CONFIG_S_DRIVER_OK) to signal active virtio-ring
operation, instead of from within virtscsi_p
On Wed, 2012-07-11 at 19:37 +0100, James Bottomley wrote:
> On Fri, 2012-07-06 at 20:15 +0000, Nicholas A. Bellinger wrote:
> > From: Nicholas Bellinger
> >
> > This patch changes virtio-scsi to use a new virtio_driver->scan() callback
> > so that scsi_scan_host(
On Thu, 2012-07-12 at 17:47 +0300, Dan Carpenter wrote:
> We need to unlock here before returning.
>
> Signed-off-by: Dan Carpenter
>
> diff --git a/drivers/vhost/tcm_vhost.c b/drivers/vhost/tcm_vhost.c
> index da0b8ac..d217bed 100644
> --- a/drivers/vhost/tcm_vhost.c
> +++ b/drivers/vhost/tcm_v
On Thu, 2012-07-12 at 17:48 +0300, Dan Carpenter wrote:
> We do snprintf() from "page" to a buffer with TCM_VHOST_NAMELEN
> characters so the current code will silently truncate the last
> character.
>
> Signed-off-by: Dan Carpenter
>
> diff --git a/drivers/vhost/tcm_vhost.c b/drivers/vhost/tcm_
On Thu, 2012-07-12 at 17:48 +0300, Dan Carpenter wrote:
> There is a memory leak here.
>
> Signed-off-by: Dan Carpenter
>
> diff --git a/drivers/vhost/tcm_vhost.c b/drivers/vhost/tcm_vhost.c
> index 57d39c5..29850cb 100644
> --- a/drivers/vhost/tcm_vhost.c
> +++ b/drivers/vhost/tcm_vhost.c
> @@
Hi Zhi,
On Thu, 2012-07-12 at 14:59 +0800, Zhi Yong Wu wrote:
> thanks, it is applied to my vhost_scsi git tree
> git://github.com/wuzhy/qemu.git vhost-scsi
>
Thanks for picking up this patch in your vhost-scsi tree.
As mentioned off-list, I'd like to rebase to a more recent qemu.git to
include
On Fri, 2012-07-13 at 13:45 +0300, Dan Carpenter wrote:
> strlen() doesn't count the NUL terminator. I missed this one in the
> patches I sent yesterday.
>
> Signed-off-by: Dan Carpenter
>
> diff --git a/drivers/vhost/tcm_vhost.c b/drivers/vhost/tcm_vhost.c
> index 29850cb..ea72198 100644
> ---
On Tue, 2012-07-17 at 18:05 +0300, Michael S. Tsirkin wrote:
> On Wed, Jul 11, 2012 at 09:15:00PM +0000, Nicholas A. Bellinger wrote:
> > From: Nicholas Bellinger
> >
> > Hi folks,
> >
> > The following is a RFC-v2 series of tcm_vhost target fabric driver cod
On Tue, 2012-07-17 at 13:55 -0500, Anthony Liguori wrote:
> On 07/17/2012 10:05 AM, Michael S. Tsirkin wrote:
> > On Wed, Jul 11, 2012 at 09:15:00PM +, Nicholas A. Bellinger wrote:
> >
> > It still seems not 100% clear whether this driver will have major
> > use
On Wed, 2012-07-18 at 00:34 +0300, Michael S. Tsirkin wrote:
> On Tue, Jul 17, 2012 at 02:17:22PM -0700, Nicholas A. Bellinger wrote:
> > On Tue, 2012-07-17 at 18:05 +0300, Michael S. Tsirkin wrote:
> > > On Wed, Jul 11, 2012 at 09:15:00PM +, Nicholas A. Bellinger wrote:
>
On Wed, 2012-07-18 at 00:58 +0300, Michael S. Tsirkin wrote:
> On Tue, Jul 17, 2012 at 02:17:22PM -0700, Nicholas A. Bellinger wrote:
> > Wrt to staging, I'd like to avoid mucking with staging because:
> >
> > *) The code has been posted for review
> > *) The co
On Wed, 2012-07-18 at 01:18 +0300, Michael S. Tsirkin wrote:
> On Tue, Jul 17, 2012 at 03:02:08PM -0700, Nicholas A. Bellinger wrote:
> > On Wed, 2012-07-18 at 00:34 +0300, Michael S. Tsirkin wrote:
> > > On Tue, Jul 17, 2012 at 02:17:22PM -0700, Nicholas A. Bellinger wrote:
&g
On Wed, 2012-07-18 at 02:11 +0300, Michael S. Tsirkin wrote:
> On Tue, Jul 17, 2012 at 03:37:20PM -0700, Nicholas A. Bellinger wrote:
> > On Wed, 2012-07-18 at 01:18 +0300, Michael S. Tsirkin wrote:
> > > On Tue, Jul 17, 2012 at 03:02:08PM -0700, Nicholas A. Bellinger wrote:
&g
From: Nicholas Bellinger
Hi folks,
The following is the RFC-v3 series of tcm_vhost target fabric driver code
currently in-flight for-3.6 mainline code.
With the merge window opening soon, the tcm_vhost code has started seeing
time in linux-next. The v2 -> v3 changelog from the last week is cur
From: Stefan Hajnoczi
The vhost work queue allows processing to be done in vhost worker thread
context, which uses the owner process mm. Access to the vring and guest
memory is typically only possible from vhost worker context so it is
useful to allow work to be queued directly by users.
Curren
Hajnoczi
Cc: Zhi Yong Wu
Cc: Michael S. Tsirkin
Cc: Paolo Bonzini ,
Signed-off-by: Nicholas A. Bellinger
---
include/linux/vhost.h |9 +
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/include/linux/vhost.h b/include/linux/vhost.h
index e847f1e..33b313b 100644
--- a
: Michael S. Tsirkin
Cc: Paolo Bonzini
Cc: Asias He
Signed-off-by: Nicholas A. Bellinger
---
drivers/vhost/net.c |4 ++--
drivers/vhost/test.c |4 ++--
drivers/vhost/vhost.h |3 ++-
3 files changed, 6 insertions(+), 5 deletions(-)
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
SCSI initiators
+ *
+ * (C) Copyright 2010-2012 RisingTide Systems LLC.
+ * (C) Copyright 2010-2012 IBM Corp.
+ *
+ * Licensed to the Linux Foundation under the General Public License (GPL)
version 2.
+ *
+ * Authors: Nicholas A. Bellinger
+ * Stefan Hajnoczi
+ *
+ * This program is free software;
On Wed, 2012-07-18 at 16:05 +0300, Michael S. Tsirkin wrote:
> On Wed, Jul 18, 2012 at 12:59:31AM +0000, Nicholas A. Bellinger wrote:
> > From: Nicholas Bellinger
> >
> > This patch adds the initial vhost_scsi_ioctl() callers for
> > VHOST_SCSI_SET_ENDPOINT
> &
On Wed, 2012-07-18 at 19:09 +0300, Michael S. Tsirkin wrote:
> On Wed, Jul 18, 2012 at 12:59:32AM +0000, Nicholas A. Bellinger wrote:
> >
> > Changelog v2 -> v3:
> >
> > Unlock on error in tcm_vhost_drop_nexus() (DanC)
> > Fix strlen() doesn't cou
On Wed, 2012-07-18 at 08:42 -0500, Anthony Liguori wrote:
> On 07/17/2012 04:50 PM, Nicholas A. Bellinger wrote:
> > On Tue, 2012-07-17 at 13:55 -0500, Anthony Liguori wrote:
> >> On 07/17/2012 10:05 AM, Michael S. Tsirkin wrote:
> >>> On Wed, Jul 11, 2012 a
On Fri, 2012-07-20 at 15:03 +0300, Michael S. Tsirkin wrote:
> On Wed, Jul 18, 2012 at 02:20:58PM -0700, Nicholas A. Bellinger wrote:
> > On Wed, 2012-07-18 at 19:09 +0300, Michael S. Tsirkin wrote:
> > > On Wed, Jul 18, 2012 at 12:59:32AM +, Nicholas
On Fri, 2012-07-20 at 11:00 -0700, Nicholas A. Bellinger wrote:
> On Fri, 2012-07-20 at 15:03 +0300, Michael S. Tsirkin wrote:
> > On Wed, Jul 18, 2012 at 02:20:58PM -0700, Nicholas A. Bellinger wrote:
> > > On Wed, 2012-07-18 at 19:09 +0300, Michael S. Tsirkin wrote:
> >
From: Nicholas Bellinger
Hi MST, Greg-KH & Co,
The following is -v4 of the in-flight TCM vhost fabric driver for-3.6 code.
This series has been rebased into target-pending.git/for-next-merge this
evening, and the changelog over the last days from v3 -> v4 has been:
*) Rename vhost_vring_tar
: Michael S. Tsirkin
Cc: Paolo Bonzini
Cc: Asias He
Signed-off-by: Nicholas A. Bellinger
---
drivers/vhost/net.c |4 ++--
drivers/vhost/test.c |4 ++--
drivers/vhost/vhost.h |3 ++-
3 files changed, 6 insertions(+), 5 deletions(-)
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
From: Stefan Hajnoczi
The vhost work queue allows processing to be done in vhost worker thread
context, which uses the owner process mm. Access to the vring and guest
memory is typically only possible from vhost worker context so it is
useful to allow work to be queued directly by users.
Curren
vhost/tcm_vhost.c
new file mode 100644
index 000..dc7e024
--- /dev/null
+++ b/drivers/vhost/tcm_vhost.c
@@ -0,0 +1,1611 @@
+/***
+ * Vhost kernel TCM fabric driver for virtio SCSI initiators
+ *
+ * (C) Copyright 2010-2012 RisingTide Systems LLC.
+ * (C) Copyright 2010-2012 IBM Co
On Sat, 2012-07-21 at 19:07 -0700, Greg KH wrote:
> On Fri, Jul 20, 2012 at 09:42:28PM +0300, Michael S. Tsirkin wrote:
> > It's very similar to how it was with nouveau: we are not sure
> > we can commit to the userspace ABI yet.
>
> Then you are in trouble :)
>
I agree with MST here that tcm
On Mon, 2012-07-23 at 08:16 -0700, Greg KH wrote:
> On Sun, Jul 22, 2012 at 02:44:23PM -0700, Nicholas A. Bellinger wrote:
> > So Linus has merged target-pending/for-next this afternoon, so now we
> > are just waiting on net-next to hit mainline with the vhost patches
> >
From: Nicholas Bellinger
As requested by Anthony, here is a patch against target-pending/for-next-merge
to expose an ABI version to userspace via a new VHOST_SCSI_GET_ABI_VERSION
ioctl operation.
As mentioned in the comment, ABI Rev 0 is for pre 2012 out-of-tree code, and
ABI Rev 1 (the current
From: Nicholas Bellinger
Hi Anthony,
Here are the two patches against Zhi's vhost-scsi tree to check for
a supported version (VHOST_SCSI_ABI_VERSION=1) that's now exposed via
the tcm_vhost ioctl.
Please have a look and let me know if this is what you had in mind.
Thanks!
Nicholas Bellinger (2
From: Nicholas Bellinger
This patch adds support in vhost-scsi QEMU userspace code to check the
running tcm_vhost ABI version using VHOST_SCSI_GET_ABI_VERSION.
This series selects VHOST_SCSI_ABI_VERSION=1 for current code, and
requires the pre-requsite tcm_vhost patch to expose an ABI version nu
From: Nicholas Bellinger
Rename the main IOCTL structure to vhost_scsi_target so that
it makes a little more sense than vhost_vring_target.
As requested by MST.
Reported-by: Michael S. Tsirkin
Cc: Stefan Hajnoczi
Cc: Anthony Liguori
Cc: Paolo Bonzini
Cc: Zhi Yong Wu
Signed-off-by: Nicholas
Hi Anthony, Stefan & QEMU folks,
So during the process of separating out the patches from Zhi's
vhost-scsi tree this evening, I managed to squash everything down to
nine nicely reviewable patches that apply against the current
qemu.git/master:
Nicholas Bellinger (1):
virtio-scsi: Set max_target
On Tue, 2012-07-24 at 09:57 +0200, Jan Kiszka wrote:
> On 2012-07-24 09:42, Nicholas A. Bellinger wrote:
> > Hi Anthony, Stefan & QEMU folks,
> >
> > However, thus far I've not been able to get virtio-scsi <-> tcm_vhost
> > I/O to actual
On Mon, 2012-07-23 at 18:56 -0700, Greg Kroah-Hartman wrote:
> On Tue, Jul 24, 2012 at 01:26:20AM +0000, Nicholas A. Bellinger wrote:
> > From: Nicholas Bellinger
> >
> > As requested by Anthony, here is a patch against
> > target-pending/for-next-merge
> > to e
On Tue, 2012-07-24 at 13:20 -0700, Nicholas A. Bellinger wrote:
> On Tue, 2012-07-24 at 09:57 +0200, Jan Kiszka wrote:
> > On 2012-07-24 09:42, Nicholas A. Bellinger wrote:
> > > Hi Anthony, Stefan & QEMU folks,
> > >
>
>
>
> > > Howeve
From: Nicholas Bellinger
Hi Anthony + QEMU storage folks,
The following is a reviewable RFC series of vhost-scsi against yesterday's
QEMU.git/master @ commit 401a66357d.
The series is available directly from:
git://git.kernel.org/pub/scm/virt/kvm/nab/qemu-kvm.git vhost-scsi-merge
It contain
From: Stefan Hajnoczi
Normally host notifiers are only used together with vhost-net in KVM
mode. It is occassionally useful to use vhost with TCG mode, mainly for
testing and development. This isn't hard to achieve, simply fall back
to notifying the host notifier manually from qemu if KVM mode
From: Stefan Hajnoczi
Event notifiers that have not had the event_notifier_init() function
called on them are invalid. The event_notifier_valid() function checks
whether or not an event notifier is valild. This can be used to check
whether a notifier is in use or not.
It sometimes useful to no
From: Stefan Hajnoczi
For sanity assert that event notification succeeds.
Signed-off-by: Stefan Hajnoczi
Cc: Anthony Liguori
Cc: Paolo Bonzini
Signed-off-by: Nicholas Bellinger
---
hw/virtio-pci.c |5 -
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/hw/virtio-pci.c b
From: Stefan Hajnoczi
A vhost-scsi device must be bound to a tcm_vhost target port. This will
be done by issuing an ioctl to the device with the wwpn and tgpt. This
patch adds these properties to the virtio-scsi-pci device:
qemu -device virtio-scsi-pci,wwpn=$TARGET_WWN,tgpt=$TPGT
Future pat
From: Stefan Hajnoczi
The path to /dev/vhost-net is currently hardcoded in vhost_dev_init().
This needs to be changed so that /dev/vhost-scsi can be used. Pass in
the device path instead of hardcoding it.
Signed-off-by: Stefan Hajnoczi
Cc: Paolo Bonzini
Cc: Michael S. Tsirkin
Signed-off-by:
From: Stefan Hajnoczi
Begin adding vhost support by opening /dev/vhost-scsi.
(v2: Drop legacy ->vhost_vqs[] usage)
Signed-off-by: Stefan Hajnoczi
Signed-off-by: Zhi Yong Wu
Cc: Michael S. Tsirkin
Cc: Paolo Bonzini
Signed-off-by: Nicholas Bellinger
---
hw/virtio-scsi.c | 12
From: Stefan Hajnoczi
This patch starts and stops vhost as the virtio device transitions
through its status phases. Vhost can only be started once the guest
reports its driver has successfully initialized, which means the
virtqueues have been set up by the guest.
(v2: Squash virtio-scsi: use th
From: Nicholas Bellinger
This QEMU patch sets VirtIOSCSIConfig->max_target=0 for vhost-scsi operation
to restrict virtio-scsi LLD guest scanning to max_id=0 (a single target ID
instance) when connected to individual tcm_vhost endpoints.
This ensures that virtio-scsi LLD only attempts to scan tar
From: Stefan Hajnoczi
This patch adds a new type of host device that drives the vhost_scsi
device. The syntax to add vhost-scsi is:
qemu -vhost-scsi id=vhost-scsi0,wwpn=...,tpgt=123
The virtio-scsi emulated device will make use of vhost-scsi to process
virtio-scsi requests inside the kernel
On Wed, 2012-07-25 at 16:10 +0300, Avi Kivity wrote:
> On 07/24/2012 11:45 PM, Nicholas A. Bellinger wrote:
>
> >> > diff --git a/drivers/vhost/tcm_vhost.h b/drivers/vhost/tcm_vhost.h
> >> > index e942df9..3d5378f 100644
> >> > --- a/drivers/vh
On Wed, 2012-07-25 at 12:55 +0100, Stefan Hajnoczi wrote:
> On Tue, Jul 24, 2012 at 01:45:24PM -0700, Nicholas A. Bellinger wrote:
> > On Mon, 2012-07-23 at 18:56 -0700, Greg Kroah-Hartman wrote:
> > > On Tue, Jul 24, 2012 at 01:26:20AM +, Nicholas A. Bellinger wrote:
>
On Wed, 2012-07-25 at 23:35 +0100, Stefan Hajnoczi wrote:
> On Wed, Jul 25, 2012 at 02:14:50PM -0700, Nicholas A. Bellinger wrote:
> > On Wed, 2012-07-25 at 12:55 +0100, Stefan Hajnoczi wrote:
> > > On Tue, Jul 24, 2012 at 01:45:24PM -0700, Nicholas A. Bellinger wrote:
> >
On Thu, 2012-07-26 at 11:58 +0300, Avi Kivity wrote:
> On 07/26/2012 05:34 AM, Nicholas A. Bellinger wrote:
> >
> > In that case, respinning a -v5 for tcm_vhost to start from ABI=0 and
> > will post an updated patch shortly.
> >
> >> The main thing I wou
*
+ * Vhost kernel TCM fabric driver for virtio SCSI initiators
+ *
+ * (C) Copyright 2010-2012 RisingTide Systems LLC.
+ * (C) Copyright 2010-2012 IBM Corp.
+ *
+ * Licensed to the Linux Foundation under the General Public License (GPL)
version 2.
+ *
+ * Authors: Nicholas A. Bellinger
+ *
Hello folks,
The RFC-v5 patch for tcm_vhost kernel code was sent out for review a bit
less than 24 hours ago, and thus far there has not been any additional
comments.. Thanks to everyone who has been participating in the various
threads over the past week and giving their feedback!
Also, just a
From: Nicholas Bellinger
This patch contains the post RFC-v5 (post-merge) changes, this includes:
- Add locking comment
- Move vhost_scsi_complete_cmd ahead of TFO callbacks in order to
drop forward declarations
- Drop extra '!= NULL' usage in vhost_scsi_complete_cmd_work()
- Change vhost_scsi
Hi Linus,
Here is the PULL request for the initial merge of tcm_vhost based on
RFC-v5 code with MST's ACK appended to the initial merge commit.
As promised, the commit is available from two different branches for you
to consider merging as for-3.6 code.
The 'for-next-merge' branch based on mainli
ou!
--nab
On Mon, 2012-07-30 at 18:19 -0700, Nicholas A. Bellinger wrote:
> Hi Linus,
>
> Here is the PULL request for the initial merge of tcm_vhost based on
> RFC-v5 code with MST's ACK appended to the initial merge commit.
> As promised, the commit is available from two d
From: Nicholas Bellinger
Hi Paolo, Stefan, & QEMU folks,
The following is the second RFC series for vhost-scsi patches against mainline
QEMU v1.1.0. The series is available from the following working branch:
git://git.kernel.org/pub/scm/virt/kvm/nab/qemu-kvm.git vhost-scsi-merge
Apologies f
From: Stefan Hajnoczi
The path to /dev/vhost-net is currently hardcoded in vhost_dev_init().
This needs to be changed so that /dev/vhost-scsi can be used. Pass in
the device path instead of hardcoding it.
Signed-off-by: Stefan Hajnoczi
Cc: Paolo Bonzini
Cc: Michael S. Tsirkin
Signed-off-by:
From: Nicholas Bellinger
This is required to get past the following assert with:
commit 1523ed9e1d46b0b54540049d491475ccac7e6421
Author: Jan Kiszka
Date: Thu May 17 10:32:39 2012 -0300
virtio/vhost: Add support for KVM in-kernel MSI injection
Cc: Stefan Hajnoczi
Cc: Jan Kiszka
Cc: Pao
From: Stefan Hajnoczi
This patch adds a new type of host device that drives the vhost_scsi
device. The syntax to add vhost-scsi is:
qemu -vhost-scsi id=vhost-scsi0,wwpn=...,tpgt=123
The virtio-scsi emulated device will make use of vhost-scsi to process
virtio-scsi requests inside the kernel
From: Nicholas Bellinger
This patch fixes bug in the definition of VirtIOSCSI->cmd_vqs[0],
where the return of virtio_add_queue() in virtio_scsi_init() ends up
overwriting past the end of ->cmd_vqs[0].
Since virtio_scsi currently assumes a single vqs for data, this patch
simply changes ->cmd_vqs
From: Stefan Hajnoczi
This patch starts and stops vhost as the virtio device transitions
through its status phases. Vhost can only be started once the guest
reports its driver has successfully initialized, which means the
virtqueues have been set up by the guest.
v2: - Squash virtio-scsi: use t
From: Nicholas Bellinger
This QEMU patch sets VirtIOSCSIConfig->max_target=0 for vhost-scsi operation
to restrict virtio-scsi LLD guest scanning to max_id=0 (a single target ID
instance) when connected to individual tcm_vhost endpoints.
This ensures that virtio-scsi LLD only attempts to scan tar
On Mon, 2012-08-13 at 21:17 +0300, Michael S. Tsirkin wrote:
> On Mon, Aug 13, 2012 at 08:06:17PM +0200, Jan Kiszka wrote:
> > On 2012-08-13 20:03, Michael S. Tsirkin wrote:
> > > On Mon, Aug 13, 2012 at 02:06:10PM +0200, Jan Kiszka wrote:
> > >> On 2012-08-13 10:3
On Mon, 2012-08-13 at 12:02 +0300, Michael S. Tsirkin wrote:
> On Mon, Aug 13, 2012 at 08:35:17AM +0000, Nicholas A. Bellinger wrote:
> > From: Nicholas Bellinger
> >
> > This patch fixes bug in the definition of VirtIOSCSI->cmd_vqs[0],
> > where the r
On Mon, 2012-08-13 at 11:53 +0300, Michael S. Tsirkin wrote:
> On Mon, Aug 13, 2012 at 08:35:14AM +0000, Nicholas A. Bellinger wrote:
> > From: Stefan Hajnoczi
> >
> > This patch adds a new type of host device that drives the vhost_scsi
> > device. The
On Mon, 2012-08-13 at 11:59 +0300, Michael S. Tsirkin wrote:
> On Mon, Aug 13, 2012 at 08:35:14AM +0000, Nicholas A. Bellinger wrote:
> > From: Stefan Hajnoczi
> >
> > This patch adds a new type of host device that drives the vhost_scsi
> > device. The
On Mon, 2012-08-13 at 19:47 +, Blue Swirl wrote:
> On Mon, Aug 13, 2012 at 8:35 AM, Nicholas A. Bellinger
> wrote:
> > From: Stefan Hajnoczi
> >
> > This patch adds a new type of host device that drives the vhost_scsi
> > device. The syntax to add vhost-scsi
On Tue, 2012-08-14 at 07:45 +0100, Stefan Hajnoczi wrote:
> On Tue, Aug 14, 2012 at 09:52:55AM +0800, Asias He wrote:
> > On Mon, Aug 13, 2012 at 3:24 PM, Pekka Enberg wrote:
> > > On Thu, Aug 9, 2012 at 3:51 AM, Asias He wrote:
> > >> ---
> > >> diff --git a/tools/kvm/include/kvm/disk-image.h
On Sat, 2012-08-18 at 20:52 +0200, Paolo Bonzini wrote:
> Il 14/08/2012 22:20, Nicholas A. Bellinger ha scritto:
> >>> > > Since virtio_scsi currently assumes a single vqs for data, this patch
> >>> > > simply changes ->cmd_vqs[1] to handle the single Vi
On Sat, 2012-08-18 at 23:04 +0300, Michael S. Tsirkin wrote:
> Hi Nicholas,
> I just noticed this problem in the interface:
>
> +#include
> +
> +/*
> + * Used by QEMU userspace to ensure a consistent vhost-scsi ABI.
> + *
> + * ABI Rev 0: July 2012 version starting point for v3.6-rc merge
> candi
On Sat, 2012-08-18 at 22:10 +0300, Michael S. Tsirkin wrote:
> On Tue, Aug 14, 2012 at 02:12:29PM -0700, Nicholas A. Bellinger wrote:
> > On Mon, 2012-08-13 at 11:59 +0300, Michael S. Tsirkin wrote:
> > > On Mon, Aug 13, 2012 at 08:35:14AM +, Nicholas
On Sat, 2012-08-18 at 22:12 +0300, Michael S. Tsirkin wrote:
> On Tue, Aug 14, 2012 at 01:31:14PM -0700, Nicholas A. Bellinger wrote:
> > On Mon, 2012-08-13 at 11:53 +0300, Michael S. Tsirkin wrote:
> > > On Mon, Aug 13, 2012 at 08:35:14AM +, Nicholas A. Bellinger wrote:
&g
On Sun, 2012-08-19 at 11:44 +0300, Michael S. Tsirkin wrote:
> On Sat, Aug 18, 2012 at 05:36:26PM -0700, Nicholas A. Bellinger wrote:
> > On Sat, 2012-08-18 at 22:12 +0300, Michael S. Tsirkin wrote:
> > > On Tue, Aug 14, 2012 at 01:31:14PM -0700, Nicholas A. Bellinger wrote:
&g
From: Nicholas Bellinger
Hi folks,
This is the third RFC for vhost-scsi patches against mainline QEMU v1.1
to support the upstream tcm_vhost host virtualized target driver now
available in v3.6-rc kernel code. This series is based upon last week's
commit 346fe0c4c0b, and is aiming for a future
From: Nicholas Bellinger
This patch renames+moves the net_handle_fd_param() caller used to
obtain a file descriptor from either qemu_parse_fd() (the normal case)
or from monitor_get_fd() (migration case) into a generically prefixed
monitor_handle_fd_param() to be used by vhost-scsi code.
Also up
From: Stefan Hajnoczi
The path to /dev/vhost-net is currently hardcoded in vhost_dev_init().
This needs to be changed so that /dev/vhost-scsi can be used. Pass in
the device path instead of hardcoding it.
Signed-off-by: Stefan Hajnoczi
Cc: Paolo Bonzini
Cc: Michael S. Tsirkin
Signed-off-by:
From: Stefan Hajnoczi
This patch starts and stops vhost as the virtio device transitions
through its status phases. Vhost can only be started once the guest
reports its driver has successfully initialized, which means the
virtqueues have been set up by the guest.
v3: - Add vhost-scsi.h include
From: Stefan Hajnoczi
This patch adds a new type of host device that drives the vhost_scsi
device. The syntax to add vhost-scsi is:
qemu -vhost-scsi id=vhost-scsi0,wwpn=...,tpgt=123
The virtio-scsi emulated device will make use of vhost-scsi to process
virtio-scsi requests inside the kernel
From: Nicholas Bellinger
This QEMU patch sets VirtIOSCSIConfig->max_target=0 for vhost-scsi operation
to restrict virtio-scsi LLD guest scanning to max_id=0 (a single target ID
instance) when connected to individual tcm_vhost endpoints.
This ensures that virtio-scsi LLD only attempts to scan tar
On Fri, 2012-08-17 at 17:26 +0800, Asias He wrote:
> This patch brings virito-scsi support to kvm tool.
>
> With the introduce of tcm_vhost (vhost-scsi)
>
>tcm_vhost: Initial merge for vhost level target fabric driver
>
> we can implement virito-scsi by simply having vhost-scsi to handle the
On Tue, 2012-08-28 at 13:54 +0200, Paolo Bonzini wrote:
> This patch adds queue steering to virtio-scsi. When a target is sent
> multiple requests, we always drive them to the same queue so that FIFO
> processing order is kept. However, if a target was idle, we can choose
> a queue arbitrarily.
On Tue, 2012-09-04 at 08:46 +0200, Paolo Bonzini wrote:
> Il 04/09/2012 04:21, Nicholas A. Bellinger ha scritto:
> >> @@ -112,6 +118,9 @@ static void virtscsi_complete_cmd(struct virtio_scsi
> >> *vscsi, void *buf)
> >>struct virtio_scsi_cmd *cmd = buf;
> >
From: Nicholas Bellinger
Hi folks,
This series contains patches required to update tcm_vhost <-> virtio-scsi
connected hosts <-> guests to run on v3.5-rc2 mainline code. This series is
available on top of target-pending/auto-next here:
git://git.kernel.org/pub/scm/linux/kernel/git/nab/targe
From: Stefan Hajnoczi
In order for other vhost devices to use the VHOST_FEATURES bits the
vhost-net specific bits need to be moved to their own VHOST_NET_FEATURES
constant.
Signed-off-by: Stefan Hajnoczi
Cc: Zhi Yong Wu
Cc: Michael S. Tsirkin
Cc: Paolo Bonzini
Signed-off-by: Nicholas A
Hajnoczi
Cc: Zhi Yong Wu
Cc: Michael S. Tsirkin
Cc: Paolo Bonzini ,
Signed-off-by: Nicholas A. Bellinger
---
include/linux/vhost.h |9 +
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/include/linux/vhost.h b/include/linux/vhost.h
index e847f1e..33b313b 100644
--- a
From: Stefan Hajnoczi
The vhost work queue allows processing to be done in vhost worker thread
context, which uses the owner process mm. Access to the vring and guest
memory is typically only possible from vhost worker context so it is
useful to allow work to be queued directly by users.
Curren
nel TCM fabric driver for virtio SCSI initiators
+ *
+ * (C) Copyright 2010-2012 RisingTide Systems LLC.
+ * (C) Copyright 2010-2012 IBM Corp.
+ *
+ * Licensed to the Linux Foundation under the General Public License (GPL)
version 2.
+ *
+ * Authors: Nicholas A. Bellinger
+ * Stefan H
From: Nicholas Bellinger
This patch changes virtio-scsi to use a new virtio_driver->scan() callback
so that scsi_scan_host() can be properly invoked once virtio_dev_probe() has
set add_status(dev, VIRTIO_CONFIG_S_DRIVER_OK) to signal active virtio-ring
operation, instead of from within virtscsi_p
From: Nicholas Bellinger
This is currently required for connecting to tcm_vhost in order to prevent
the client LUN scan from detecting the same tcm_vhost WWPN on multiple target
IDs.
Cc: Paolo Bonzini
Cc: Stefan Hajnoczi
Cc: Zhi Yong Wu
Cc: Christoph Hellwig
Cc: Hannes Reinecke
Signed-off-b
, Jul 04, 2012 at 04:24:00AM +, Nicholas A. Bellinger wrote:
> >>>> From: Nicholas Bellinger
> >>>>
> >>>> Hi folks,
> >>>>
> >>>> This series contains patches required to update tcm_vhost<-> virtio-scsi
> >&
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