Implement mtu setting for vdpa device.
$ vdpa mgmtdev show
vdpasim_net:
supported_classes net
Add the device with mac address and mtu:
$ vdpa dev add name bar mgmtdev vdpasim_net mac 00:11:22:33:44:55 mtu 9000
In above command only mac address or only mtu can also be set.
View the config afte
vdpa: Enable user to set mtu of the vdpa device
Implement mtu setting for vdpa device.
$ vdpa mgmtdev show
vdpasim_net:
supported_classes net
Add the device with specified mac address:
$ vdpa dev add name bar mgmtdev vdpasim_net mac 00:11:22:33:44:55
View the config after setting:
$ vdpa dev
Update kernel headers to commit:
ad69dd0bf26b ("vdpa: Introduce query of device config layout")
Signed-off-by: Parav Pandit
---
include/uapi/linux/virtio_net.h | 81 +
vdpa/include/uapi/linux/vdpa.h | 7 +++
2 files changed, 88 insertions(+)
create mode 100644
Query the device configuration layout whenever kernel supports it.
An example of configuration layout of vdpa device of type network:
$ vdpa dev add name bar mgmtdev vdpasim_net
$ vdpa dev config show
bar: mac 00:35:09:19:48:05 link up link_announce false mtu 1500
$ vdpa dev config show -jp
{
This series implements querying and setting of the mac address and mtu
device config fields of the vdpa device of type net.
An example of query and set as below.
$ vdpa dev add name bar mgmtdev vdpasim_net mac 00:11:22:33:44:55 mtu 9000
$ vdpa dev config show
bar: mac 00:11:22:33:44:55 link up l
> From: Eli Cohen
> Sent: Thursday, December 2, 2021 1:27 AM
>
> Add netlink support to configure the max virtqueue pairs for a device.
> At least one pair is required. The maximum is dictated by the device.
>
Cover letter and this patch is missing the example iproute2 example to do this.
Plea
> From: Jason Wang
> Sent: Thursday, December 2, 2021 9:11 AM
>
> 在 2021/12/1 下午6:09, Parav Pandit 写道:
> >
> >> From: Eli Cohen
> >> Sent: Wednesday, December 1, 2021 3:33 PM
> >>
> >> On Tue, Nov 30, 2021 at 05:24:03PM -0800, Si-Wei Liu wrote:
> >>>
> >>> On 11/30/2021 1:48 AM, Eli Cohen wrot
在 2021/12/1 下午6:09, Parav Pandit 写道:
From: Eli Cohen
Sent: Wednesday, December 1, 2021 3:33 PM
On Tue, Nov 30, 2021 at 05:24:03PM -0800, Si-Wei Liu wrote:
On 11/30/2021 1:48 AM, Eli Cohen wrote:
Allow to configure the max virtqueues for a device.
Signed-off-by: Eli Cohen
---
drivers/
> From: Eli Cohen
> Sent: Thursday, December 2, 2021 1:27 AM
>
> Fix VDPA_ATTR_DEV_NET_CFG_MACADDR assignment to be explicit 64 bit
> assignment.
>
> No issue was seen since the value is well below 64 bit max value.
> Nevertheless it needs to be fixed.
>
> Fixes: a007d940040c ("vdpa/mlx5: Su
> From: Eli Cohen
> Sent: Thursday, December 2, 2021 1:27 AM
>
> Add netlink support to configure the max virtqueue pairs for a device.
> At least one pair is required. The maximum is dictated by the device.
>
> Signed-off-by: Eli Cohen
> ---
> drivers/vdpa/vdpa.c | 14 +- inclu
On Wed, Dec 1, 2021 at 7:20 PM Will Deacon wrote:
>
> virtio_max_dma_size() returns the maximum DMA mapping size of the virtio
> device by querying dma_max_mapping_size() for the device when the DMA
> API is in use for the vring. Unfortunately, the device passed is
> initialised by register_virtio
On 12/1/2021 2:03 AM, Eli Cohen wrote:
+ if ((config.max_virtqueues - 1) & config.max_virtqueues) {
+ NL_SET_ERR_MSG_MOD(info->extack,
+ "Must provide power of two number of
virtqueues");
Why there's such limitation
On 12/1/2021 2:03 AM, Eli Cohen wrote:
On Tue, Nov 30, 2021 at 05:24:03PM -0800, Si-Wei Liu wrote:
On 11/30/2021 1:48 AM, Eli Cohen wrote:
Allow to configure the max virtqueues for a device.
Signed-off-by: Eli Cohen
---
drivers/vdpa/vdpa.c | 16 +++-
include/linux/vdpa.h
Support identity domains for devices that do not offer the
VIRTIO_IOMMU_F_BYPASS_CONFIG feature, by creating 1:1 mappings between
the virtual and physical address space. Identity domains created this
way still perform noticeably better than DMA domains, because they don't
have the overhead of setti
To ease identity mapping support, keep the list of reserved regions
sorted.
Reviewed-by: Eric Auger
Reviewed-by: Kevin Tian
Signed-off-by: Jean-Philippe Brucker
---
drivers/iommu/virtio-iommu.c | 9 +++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/iommu/virtio-io
The VIRTIO_IOMMU_F_BYPASS_CONFIG feature adds a new flag to the ATTACH
request, that creates a bypass domain. Use it to enable identity
domains.
When VIRTIO_IOMMU_F_BYPASS_CONFIG is not supported by the device, we
currently fail attaching to an identity domain. Future patches will
instead create i
Add definitions for the VIRTIO_IOMMU_F_BYPASS_CONFIG, which supersedes
VIRTIO_IOMMU_F_BYPASS.
Reviewed-by: Kevin Tian
Signed-off-by: Jean-Philippe Brucker
---
include/uapi/linux/virtio_iommu.h | 8 +++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/include/uapi/linux/virtio_i
To support identity mappings, the virtio-iommu driver must be able to
represent full 64-bit ranges internally. Pass (start, end) instead of
(start, size) to viommu_add/del_mapping().
Clean comments. The one about the returned size was never true: when
sweeping the whole address space the returned
Support identity domains, allowing to only enable IOMMU protection for a
subset of endpoints (those assigned to userspace, for example). Users
may enable identity domains at compile time
(CONFIG_IOMMU_DEFAULT_PASSTHROUGH), boot time (iommu.passthrough=1) or
runtime (/sys/kernel/iommu_groups/*/type
On 2021-11-30 12:38, David Ahern wrote:
Today, stats are sent as a struct so skipping stats whose value is 0 is
not an option. When using individual attributes for the counters this
becomes an option. Given there is no value in sending '0' why do it?
Is your pushback that there should be a uapi
> From: Eli Cohen
> Sent: Wednesday, December 1, 2021 5:29 PM
>
> On Wed, Dec 01, 2021 at 12:09:17PM +0200, Parav Pandit wrote:
> >
> >
> > > From: Eli Cohen
> > > Sent: Wednesday, December 1, 2021 3:33 PM
> > >
> > > On Tue, Nov 30, 2021 at 05:24:03PM -0800, Si-Wei Liu wrote:
> > > >
> > > >
virtio_max_dma_size() returns the maximum DMA mapping size of the virtio
device by querying dma_max_mapping_size() for the device when the DMA
API is in use for the vring. Unfortunately, the device passed is
initialised by register_virtio_device() and does not inherit the DMA
configuration from its
On Mon, Nov 29, 2021 at 09:27:17PM +0800, Tiezhu Yang wrote:
> On 11/29/2021 06:19 PM, Stefan Hajnoczi wrote:
> > On Sat, Nov 27, 2021 at 06:13:22PM +0800, Tiezhu Yang wrote:
> > > No need to generate virtio_fs.o first and then link to virtiofs.o, just
> > > rename virtio_fs.c to virtiofs.c and rem
> From: Eli Cohen
> Sent: Wednesday, December 1, 2021 3:33 PM
>
> On Tue, Nov 30, 2021 at 05:24:03PM -0800, Si-Wei Liu wrote:
> >
> >
> > On 11/30/2021 1:48 AM, Eli Cohen wrote:
> > > Allow to configure the max virtqueues for a device.
> > >
> > > Signed-off-by: Eli Cohen
> > > ---
> > > dr
On 01.12.21 00:56, Michael S. Tsirkin wrote:
> On Fri, Nov 26, 2021 at 02:42:07PM +0100, David Hildenbrand wrote:
>> The virtio-mem driver currently supports logical hot(un)plug in
>> MAX_ORDER - 1 granularity (4MiB on x86-64) or bigger. We want to support
>> pageblock granularity (2MiB on x86-64),
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