Hi Jason,
> From: Jason Wang
> Sent: Wednesday, April 7, 2021 12:59 PM
> >
> > Patch summary:
> > Patch-1 fix kdoc style comments
> > Patch-2 fix kdoc style comments
> > Patch-3 introduced and use helpers for get/set config and features
> > Patch-4 implement query device config layout
> >
在 2021/3/31 下午4:05, Xie Yongji 写道:
This implements an MMU-based IOMMU driver to support mapping
kernel dma buffer into userspace. The basic idea behind it is
treating MMU (VA->PA) as IOMMU (IOVA->PA). The driver will set
up MMU mapping instead of IOMMU mapping for the DMA transfer so
that the
在 2021/3/31 下午4:05, Xie Yongji 写道:
This patch introduces an attribute for vDPA device to indicate
whether virtual address can be used. If vDPA device driver set
it, vhost-vdpa bus driver will not pin user page and transfer
userspace virtual address instead of physical address during
DMA
On Wed, Apr 7, 2021 at 2:51 AM Jorgen Hansen wrote:
>
>
> > On 6 Apr 2021, at 20:31, Jiang Wang wrote:
> >
> > From: "jiang.wang"
> >
> > Currently, only VMCI supports dgram sockets. To supported
> > nested VM use case, this patch removes transport_dgram and
> > uses transport_g2h and
On Fri, Apr 02, 2021 at 06:26:02AM -0700, Eric Dumazet wrote:
> From: Eric Dumazet
>
> Xuan Zhuo reported that commit 3226b158e67c ("net: avoid 32 x truesize
> under-estimation for tiny skbs") brought a ~10% performance drop.
>
> The reason for the performance drop was that GRO was forced
> to
Hi Max,
I love your patch! Yet something to improve:
[auto build test ERROR on vhost/linux-next]
[also build test ERROR on linus/master v5.12-rc6 next-20210407]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base
On 4/7/21 7:49 AM, Xuan Zhuo wrote:
> In page_to_skb(), if we have enough tailroom to save skb_shared_info, we
> can use build_skb to create skb directly. No need to alloc for
> additional space. And it can save a 'frags slot', which is very friendly
> to GRO.
>
> Here, if the payload of the
On Tue, Apr 06, 2021 at 06:53:32PM -0500, Aditya Pakki wrote:
> In virtio_fs_get_tree, after fm is freed, it is again freed in case
> s_root is NULL and virtio_fs_fill_super() returns an error. To avoid
> a double free, set fm to NULL.
>
> Signed-off-by: Aditya Pakki
> ---
> fs/fuse/virtio_fs.c
Wei Liu writes:
> On Wed, Apr 07, 2021 at 09:38:21AM +0200, Vitaly Kuznetsov wrote:
>
>> One more though: it is probably a good idea to introduce selftests for
>> /dev/mshv (similar to KVM's selftests in
>> /tools/testing/selftests/kvm). Selftests don't really need a stable ABI
>> as they live
On Wed, Apr 07, 2021 at 12:09:23PM +, Max Gurtovoy wrote:
> According to the spec after writing 0 to device_status, the driver MUST
> wait for a read of device_status to return 0 before reinitializing the
> device. In case we have a device that won't return 0, the reset
> operation will loop
On Wed, 7 Apr 2021 12:09:22 +
Max Gurtovoy wrote:
> The reset device operation, usually is an operation that might fail from
> various reasons. For example, the controller might be in a bad state and
> can't answer to any request. Usually, the paravirt SW based virtio
> devices always
On Wed, Apr 07, 2021 at 01:16:12PM +0300, Eli Cohen wrote:
> On Wed, Apr 07, 2021 at 03:25:00PM +0800, Jason Wang wrote:
> >
> > 在 2021/4/7 上午1:04, Parav Pandit 写道:
> > > From: Eli Cohen
> > >
> > > When we suspend the VM, the VDPA interface will be reset. When the VM is
> > > resumed again,
> On 6 Apr 2021, at 20:31, Jiang Wang wrote:
>
> From: "jiang.wang"
>
> Currently, only VMCI supports dgram sockets. To supported
> nested VM use case, this patch removes transport_dgram and
> uses transport_g2h and transport_h2g for dgram too.
Could you provide some background for
在 2021/4/7 下午5:26, Xuan Zhuo 写道:
+ __free_old_xmit(sq, false, );
Let's use a separate patch for this kind of factoring.
It is also possible to encounter xsk here, so it should not be a separate patch.
Thanks.
You can do the factoring first and add xsk stuffs on top.
Thanks
在 2021/4/7 下午5:10, Xuan Zhuo 写道:
On Tue, 6 Apr 2021 15:03:29 +0800, Jason Wang wrote:
在 2021/3/31 下午3:11, Xuan Zhuo 写道:
poll tx call virtnet_xsk_run, then the data in the xsk tx queue will be
continuously consumed by napi.
Signed-off-by: Xuan Zhuo
Reviewed-by: Dust Li
I think we need
在 2021/4/7 下午3:27, Xuan Zhuo 写道:
On Tue, 6 Apr 2021 12:27:14 +0800, Jason Wang wrote:
在 2021/3/31 下午3:11, Xuan Zhuo 写道:
xsk is a high-performance packet receiving and sending technology.
This patch implements the binding and unbinding operations of xsk and
the virtio-net queue for xsk zero
On Thu, Apr 01, 2021 at 05:52:36PM +0200, Christoph Hellwig wrote:
> Diffstat:
> arch/powerpc/include/asm/fsl_pamu_stash.h | 12
> drivers/gpu/drm/msm/adreno/adreno_gpu.c |5
> drivers/iommu/amd/iommu.c | 23
> drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 75
Nuno Das Neves writes:
> On 3/5/2021 1:18 AM, Vitaly Kuznetsov wrote:
>> Nuno Das Neves writes:
>>
>>> On 2/9/2021 5:11 AM, Vitaly Kuznetsov wrote:
Nuno Das Neves writes:
>> ...
> +
> +3.1 MSHV_REQUEST_VERSION
> +
> +:Type: /dev/mshv ioctl
在 2021/4/7 上午1:04, Parav Pandit 写道:
Currently user cannot set the mac address and mtu of the vdpa device.
This patchset enables users to set the mac address and mtu of the vdpa
device once the device is created.
If a vendor driver supports such configuration user can set it otherwise
user gets
> From: Jason Wang
> Sent: Wednesday, April 7, 2021 12:56 PM
>
> 在 2021/4/7 上午1:04, Parav Pandit 写道:
> > From: Eli Cohen
> >
> > VIRTIO_F_VERSION_1 is a bit number. Use BIT_ULL() with mask
> > conditionals.
> >
> > Also, in mlx5_vdpa_is_little_endian() use BIT_ULL for consistency with
> >
在 2021/4/7 上午1:04, Parav Pandit 写道:
From: Eli Cohen
VIRTIO_F_VERSION_1 is a bit number. Use BIT_ULL() with mask
conditionals.
Also, in mlx5_vdpa_is_little_endian() use BIT_ULL for consistency with
the rest of the code.
Fixes: 1a86b377aa21 ("vdpa/mlx5: Add VDPA driver for supported mlx5
在 2021/4/7 上午1:04, Parav Pandit 写道:
From: Eli Cohen
When we suspend the VM, the VDPA interface will be reset. When the VM is
resumed again, clear_virtqueues() will clear the available and used
indices resulting in hardware virqtqueue objects becoming out of sync.
We can avoid this function
在 2021/4/7 上午1:04, Parav Pandit 写道:
From: Eli Cohen
Add code to accept MAC configuration through vdpa tool. The MAC is
written into the config struct and later can be retrieved through
get_config().
Examples:
1. Configure MAC:
$ vdpa dev config set vdpa0 mac 00:11:22:33:44:55
2. Show
在 2021/4/7 下午1:10, Parav Pandit 写道:
From: Jason Wang
Sent: Wednesday, April 7, 2021 9:26 AM
[..]
/**
* struct vdpa_config_ops - operations for configuring a vDPA device.
* Note: vDPA device drivers are required to implement all of the @@
-164,6 +200,10 @@ struct vdpa_iova_range
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