On Fri, 06 Jul 2012 11:20:06 +0800
Jason Wang wrote:
> On 07/05/2012 08:51 PM, Sasha Levin wrote:
> > On Thu, 2012-07-05 at 18:29 +0800, Jason Wang wrote:
> >> @@ -1387,6 +1404,10 @@ static int virtnet_probe(struct virtio_device *vdev)
> >> if (virtio_has_feature(vdev, VIRTIO_NET_F_CTRL_
Il 06/07/2012 05:38, Nicholas A. Bellinger ha scritto:
> So I imagine that setting inquiry/vpd/mode via configfs attribs to match
> whatever the guest wants to see (or expects to see) can be enabled
> via /sys/kernel/config/target/core/$HBA/$DEV/[wwn,attrib]/ easily to
> whatever is required.
>
>
On Thu, 2012-07-05 at 16:53 +0300, Michael S. Tsirkin wrote:
> On Thu, Jul 05, 2012 at 12:22:33PM +0200, Paolo Bonzini wrote:
> > Il 05/07/2012 03:52, Nicholas A. Bellinger ha scritto:
> > >
> > > fio randrw workload | virtio-scsi-raw | virtio-scsi+tcm_vhost |
> > > bare-metal raw block
> > > ---
On 07/05/2012 08:51 PM, Sasha Levin wrote:
On Thu, 2012-07-05 at 18:29 +0800, Jason Wang wrote:
@@ -1387,6 +1404,10 @@ static int virtnet_probe(struct virtio_device *vdev)
if (virtio_has_feature(vdev, VIRTIO_NET_F_CTRL_VQ))
vi->has_cvq = true;
+ /* Use single tx/
On 07/05/2012 07:40 PM, Sasha Levin wrote:
On Thu, 2012-07-05 at 18:29 +0800, Jason Wang wrote:
Instead of storing the queue index in virtio infos, this patch moves them to
vring_virtqueue and introduces helpers to set and get the value. This would
simplify the management and tracing.
Signed-of
On Thu, 2012-07-05 at 12:31 +0300, Michael S. Tsirkin wrote:
> On Wed, Jul 04, 2012 at 07:01:05PM -0700, Nicholas A. Bellinger wrote:
> > On Wed, 2012-07-04 at 18:05 +0300, Michael S. Tsirkin wrote:
> > > I was talking about 4/6 first of all.
> >
> > So yeah, this code is still considered RFC a
On Thu, 2012-07-05 at 09:06 -0500, Anthony Liguori wrote:
> On 07/05/2012 08:53 AM, Michael S. Tsirkin wrote:
> > On Thu, Jul 05, 2012 at 12:22:33PM +0200, Paolo Bonzini wrote:
> >> Il 05/07/2012 03:52, Nicholas A. Bellinger ha scritto:
> >>>
> >>> fio randrw workload | virtio-scsi-raw | virtio-scs
On 07/04/2012 10:40 AM, Rusty Russell wrote:
On Tue, 03 Jul 2012 08:39:39 +0800, Asias He wrote:
On 07/02/2012 02:41 PM, Rusty Russell wrote:
Sure, our guest merging might save us 100x as many exits as no merging.
But since we're not doing many requests, does it matter?
We can still have man
On Thu, Jul 05, 2012 at 04:32:31PM +0200, Paolo Bonzini wrote:
> Il 05/07/2012 15:53, Michael S. Tsirkin ha scritto:
> > On Thu, Jul 05, 2012 at 12:22:33PM +0200, Paolo Bonzini wrote:
> >> Il 05/07/2012 03:52, Nicholas A. Bellinger ha scritto:
> >>>
> >>> fio randrw workload | virtio-scsi-raw | vir
On 07/05/2012 08:51 PM, Sasha Levin wrote:
> On Thu, 2012-07-05 at 18:29 +0800, Jason Wang wrote:
>> @@ -1387,6 +1404,10 @@ static int virtnet_probe(struct virtio_device *vdev)
>> if (virtio_has_feature(vdev, VIRTIO_NET_F_CTRL_VQ))
>> vi->has_cvq = true;
>>
>> + /*
On 07/05/2012 06:29 PM, Jason Wang wrote:
> This patch converts virtio_net to a multi queue device. After negotiated
> VIRTIO_NET_F_MULTIQUEUE feature, the virtio device has many tx/rx queue pairs,
> and driver could read the number from config space.
>
> The driver expects the number of rx/tx que
On 07/05/12 17:53, Bart Van Assche wrote:
> On 07/05/12 01:52, Nicholas A. Bellinger wrote:
>> fio randrw workload | virtio-scsi-raw | virtio-scsi+tcm_vhost | bare-metal
>> raw block
>>
>> 25 Write / 75 Read |
On 07/05/12 17:47, Bart Van Assche wrote:
> On 07/04/12 04:24, Nicholas A. Bellinger wrote:
>> +/* Fill in status and signal that we are done processing this command
>> + *
>> + * This is scheduled in the vhost work queue so we are called with the owner
>> + * process mm and can access the vring.
On 07/04/12 04:24, Nicholas A. Bellinger wrote:
> +/* Fill in status and signal that we are done processing this command
> + *
> + * This is scheduled in the vhost work queue so we are called with the owner
> + * process mm and can access the vring.
> + */
> +static void vhost_scsi_complete_cmd_wo
On 07/05/12 01:52, Nicholas A. Bellinger wrote:
> fio randrw workload | virtio-scsi-raw | virtio-scsi+tcm_vhost | bare-metal
> raw block
>
> 25 Write / 75 Read | ~15K | ~45K |
On 07/05/2012 03:29 AM, Jason Wang wrote:
Test result:
1) 1 vm 2 vcpu 1q vs 2q, 1 - 1q, 2 - 2q, no pinning
- Guest to External Host TCP STREAM
sessions size throughput1 throughput2 norm1 norm2
1 64 650.55 655.61 100% 24.88 24.86 99%
2 64 1446.81 1309.44 90% 30.49 27.16 89%
4 64 1430.52 1305
When populate pages across a mem boundary at bootup, the page count
populated isn't correct. This is due to mem populated to non-mem
region and ignored.
Pfn range is also wrongly aligned when mem boundary isn't page aligned.
Also need consider the rare case when xen_do_chunk fail(populate).
For
On Thu, Jul 05, 2012 at 04:47:43PM +0200, Paolo Bonzini wrote:
> Il 05/07/2012 16:40, Michael S. Tsirkin ha scritto:
> >> virtio-scsi is brand new. It's not as if we've had any significant
> >> time to make virtio-scsi-qemu faster. In fact, tcm_vhost existed
> >> before virtio-scsi-qemu did if I
Il 05/07/2012 16:40, Michael S. Tsirkin ha scritto:
>> virtio-scsi is brand new. It's not as if we've had any significant
>> time to make virtio-scsi-qemu faster. In fact, tcm_vhost existed
>> before virtio-scsi-qemu did if I understand correctly.
Yes.
> Can't same can be said about virtio scsi
On Thu, Jul 05, 2012 at 09:06:35AM -0500, Anthony Liguori wrote:
> On 07/05/2012 08:53 AM, Michael S. Tsirkin wrote:
> >On Thu, Jul 05, 2012 at 12:22:33PM +0200, Paolo Bonzini wrote:
> >>Il 05/07/2012 03:52, Nicholas A. Bellinger ha scritto:
> >>>
> >>>fio randrw workload | virtio-scsi-raw | virtio
Il 05/07/2012 15:53, Michael S. Tsirkin ha scritto:
> On Thu, Jul 05, 2012 at 12:22:33PM +0200, Paolo Bonzini wrote:
>> Il 05/07/2012 03:52, Nicholas A. Bellinger ha scritto:
>>>
>>> fio randrw workload | virtio-scsi-raw | virtio-scsi+tcm_vhost | bare-metal
>>> raw block
>>> --
On 07/05/2012 08:53 AM, Michael S. Tsirkin wrote:
On Thu, Jul 05, 2012 at 12:22:33PM +0200, Paolo Bonzini wrote:
Il 05/07/2012 03:52, Nicholas A. Bellinger ha scritto:
fio randrw workload | virtio-scsi-raw | virtio-scsi+tcm_vhost | bare-metal raw
block
On Thu, Jul 05, 2012 at 12:22:33PM +0200, Paolo Bonzini wrote:
> Il 05/07/2012 03:52, Nicholas A. Bellinger ha scritto:
> >
> > fio randrw workload | virtio-scsi-raw | virtio-scsi+tcm_vhost | bare-metal
> > raw block
> >
On Thu, 2012-07-05 at 18:29 +0800, Jason Wang wrote:
> @@ -1387,6 +1404,10 @@ static int virtnet_probe(struct virtio_device *vdev)
> if (virtio_has_feature(vdev, VIRTIO_NET_F_CTRL_VQ))
> vi->has_cvq = true;
>
> + /* Use single tx/rx queue pair as default */
> +
On Thu, Jul 05, 2012 at 12:07:07PM +0200, Paolo Bonzini wrote:
> The KVM list is followed by more people than the generic
> virtualization@lists.linux-foundation.org mailing list, and is
> already "de facto" the place where virtio patches are posted.
I have no data on the first statement (do you?)
On Thu, 2012-07-05 at 18:29 +0800, Jason Wang wrote:
> Instead of storing the queue index in virtio infos, this patch moves them to
> vring_virtqueue and introduces helpers to set and get the value. This would
> simplify the management and tracing.
>
> Signed-off-by: Jason Wang
This patch actual
This patch let the virtio_net driver can negotiate the number of queues it
wishes to use through control virtqueue and export an ethtool interface to let
use tweak it.
As current multiqueue virtio-net implementation has optimizations on per-cpu
virtuqueues, so only two modes were support:
- singl
This patch converts virtio_net to a multi queue device. After negotiated
VIRTIO_NET_F_MULTIQUEUE feature, the virtio device has many tx/rx queue pairs,
and driver could read the number from config space.
The driver expects the number of rx/tx queue paris is equal to the number of
vcpus. To maximiz
Sometimes, virtio device need to configure irq affiniry hint to maximize the
performance. Instead of just exposing the irq of a virtqueue, this patch
introduce an API to set the affinity for a virtqueue.
The api is best-effort, the affinity hint may not be set as expected due to
platform support,
Instead of storing the queue index in virtio infos, this patch moves them to
vring_virtqueue and introduces helpers to set and get the value. This would
simplify the management and tracing.
Signed-off-by: Jason Wang
---
drivers/virtio/virtio_mmio.c |5 +
drivers/virtio/virtio_pci.c |
From: Krishna Kumar
Introduce VIRTIO_NET_F_MULTIQUEUE.
Signed-off-by: Krishna Kumar
Signed-off-by: Jason Wang
---
include/linux/virtio_net.h |1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h
index 2470f54..1bc7e30
Hello All:
This series is an update version of multiqueue virtio-net driver based on
Krishna Kumar's work to let virtio-net use multiple rx/tx queues to do the
packets reception and transmission. Please review and comments.
Test Environment:
- Intel(R) Xeon(R) CPU E5620 @ 2.40GHz, 8 cores 2 numa
Il 05/07/2012 03:52, Nicholas A. Bellinger ha scritto:
>
> fio randrw workload | virtio-scsi-raw | virtio-scsi+tcm_vhost | bare-metal
> raw block
>
> 25 Write / 75 Read | ~15K | ~45K
The old name is part of the userspace API, add it back for compatibility.
Reported-by: Sasha Levin
Signed-off-by: Paolo Bonzini
---
include/linux/virtio_blk.h |3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/include/linux/virtio_blk.h b/include/linux/virtio_blk.h
index
The KVM list is followed by more people than the generic
virtualization@lists.linux-foundation.org mailing list, and is
already "de facto" the place where virtio patches are posted.
pv-ops still has no other lists than virtualization@lists.linux-foundation.org.
However, pv-ops patches will likely
On Wed, Jul 04, 2012 at 07:01:05PM -0700, Nicholas A. Bellinger wrote:
> On Wed, 2012-07-04 at 18:05 +0300, Michael S. Tsirkin wrote:
> > On Wed, Jul 04, 2012 at 04:52:00PM +0200, Paolo Bonzini wrote:
> > > Il 04/07/2012 16:02, Michael S. Tsirkin ha scritto:
> > > > On Wed, Jul 04, 2012 at 04:24:00
Il 05/07/2012 11:06, Cong Meng ha scritto:
> This patch implements the hotplug support for virtio-scsi.
> When there is a device attached/detached, the virtio-scsi driver will be
> signaled via event virtual queue and it will add/remove the scsi device
> in question automatically.
>
> v2: handle
This patch implements the hotplug support for virtio-scsi.
When there is a device attached/detached, the virtio-scsi driver will be
signaled via event virtual queue and it will add/remove the scsi device
in question automatically.
v2: handle no_event event
v3: add handle event dropped, and typo f
Il 05/07/2012 09:09, Cong Meng ha scritto:
> This patch implements the hotplug support for virtio-scsi.
> When there is a device attached/detached, the virtio-scsi driver will be
> signaled via event virtual queue and it will add/remove the scsi device
> in question automatically.
>
> v2: handle
This patch implements the hotplug support for virtio-scsi.
When there is a device attached/detached, the virtio-scsi driver will be
signaled via event virtual queue and it will add/remove the scsi device
in question automatically.
v2: handle no_event event
v3: add handle event dropped, and typo f
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