a more appropriate name.
>
> Signed-off-by: Dragos Tatulea
> Acked-by: Eugenio Pérez
Acked-by: Jason Wang
Thanks
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NULL when not initialized.
>
> Acked-by: Eugenio Pérez
> Signed-off-by: Dragos Tatulea
> ---
Acked-by: Jason Wang
Thanks
___
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es will add hardware support for mapping the vq descriptors.
>
> Acked-by: Eugenio Pérez
> Signed-off-by: Dragos Tatulea
> ---
Acked-by: Jason Wang
Thanks
___
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r ASID 1.
>
> This patch fills in both the vq data and vq descriptor mkeys based on
> group ASID mapping.
>
> The feature is signaled to the vdpa core through the presence of the
> .get_vq_desc_group op.
>
> Acked-by: Eugenio Pérez
> Signed-off-by: D
On Mon, Oct 9, 2023 at 7:25 PM Dragos Tatulea wrote:
>
> They will be used in a follow-up patch.
>
> For dup_iotlb, avoid the src == dst case. This is an error.
>
> Acked-by: Eugenio Pérez
> Signed-off-by: Dragos Tatulea
Acked-by
t; This patch adds support for the above mentioned flow by saving the iotlb
> on each .set_map and updating the cvq iotlb with it on a cvq group change.
>
> Acked-by: Eugenio Pérez
> Signed-off-by: Dragos Tatulea
> ---
Acked-by: Jason Wang
Thanks
__
On Tue, Oct 10, 2023 at 11:11 AM Xuan Zhuo wrote:
>
> Some buggy devices, the common cfg size may not match the features.
>
> This patch checks the common cfg size for the
> features(VIRTIO_F_NOTIF_CONFIG_DATA, VIRTIO_F_RING_RESET). When the
> common cfg size does not match the corresponding featu
tio_pci_common_cfg, but some feature(such
> as the _F_RING_RESET) needs the virtio_pci_modern_common_cfg, so this
> commit changes the size to the size of virtio_pci_modern_common_cfg.
>
> Fixes: 0b50cece0b78 ("virtio_pci: introduce helper to get/set queue reset")
> Sign
n available buffer notifications.
>
> It comes from here:
> https://github.com/oasis-tcs/virtio-spec/issues/89
>
> Signed-off-by: Xuan Zhuo
Acked-by: Jason Wang
Thanks
> ---
> include/uapi/linux/virtio_config.h | 5 +
> 1 file changed, 5 insertions(+)
>
> diff --git a
On Sat, Sep 30, 2023 at 4:46 AM Jakub Sitnicki wrote:
>
> Some virtual devices, such as the virtio network device, can use multiple
> virtqueues (or multiple pairs of virtqueues in the case of a vNIC). In such
> case, when there are multiple vCPUs present, it is possible to process
> virtqueue eve
On Tue, Oct 10, 2023 at 2:19 PM Akihiko Odaki wrote:
>
> On 2023/10/10 15:00, Jason Wang wrote:
> > On Tue, Oct 10, 2023 at 1:51 PM Akihiko Odaki
> > wrote:
> >>
> >> On 2023/10/10 14:45, Jason Wang wrote:
> >>> On Tue, Oct 10, 2023 at 9:52 AM Ak
On Tue, Oct 10, 2023 at 3:58 PM Xuan Zhuo wrote:
>
> On Tue, 10 Oct 2023 14:41:39 +0800, Jason Wang wrote:
> > On Tue, Oct 10, 2023 at 11:11 AM Xuan Zhuo
> > wrote:
> > >
> > > Some buggy devices, the common cfg size may not match the features.
> > >
On Thu, Oct 12, 2023 at 9:58 AM Xuan Zhuo wrote:
>
> On Wed, 11 Oct 2023 10:00:57 -0700, Jakub Kicinski wrote:
> > On Wed, 11 Oct 2023 17:27:06 +0800 Xuan Zhuo wrote:
> > > ## AF_XDP
> > >
> > > XDP socket(AF_XDP) is an excellent bypass kernel network framework. The
> > > zero
> > > copy feature
On Thu, Oct 12, 2023 at 9:43 AM Xianting Tian
wrote:
>
> cgroup attach work and dev flush work will both be added to dev work
> list in vhost_attach_cgroups() when set dev owner:
> static int vhost_attach_cgroups(struct vhost_dev *dev)
> {
> struct vh
On Thu, Oct 12, 2023 at 3:44 PM Heng Qi wrote:
>
> Now, virtio-net already supports per-queue moderation parameter
> setting. Based on this, we use the netdim library of linux to support
> dynamic coalescing moderation for virtio-net.
>
> Due to hardware scheduling issues, we only tested rx dim.
On Thu, Oct 12, 2023 at 6:44 PM Xianting Tian
wrote:
>
>
> 在 2023/10/12 下午3:55, Jason Wang 写道:
> > On Thu, Oct 12, 2023 at 9:43 AM Xianting Tian
> > wrote:
> >> cgroup attach work and dev flush work will both be added to dev work
> >> list in vh
On Thu, Oct 12, 2023 at 4:29 PM Jason Wang wrote:
>
> On Thu, Oct 12, 2023 at 3:44 PM Heng Qi wrote:
> >
> > Now, virtio-net already supports per-queue moderation parameter
> > setting. Based on this, we use the netdim library of linux to support
> > dynamic coales
a
> * Returns integer: success (0) or error (< 0)
> + * @reset_map: Reset device memory mapping to the default
> + * state (optional)
I think we need to mention that this is a must for parents that use set_map()?
Ot
On Tue, Oct 10, 2023 at 5:05 PM Si-Wei Liu wrote:
>
> Devices with on-chip IOMMU or vendor specific IOTLB implementation
> may need to restore iotlb mapping to the initial or default state
> using the .reset_map op, as it's desirable for some parent devices
> to solely manipulate mappings by its o
On Tue, Oct 10, 2023 at 5:05 PM Si-Wei Liu wrote:
>
> Since commit 6f5312f80183 ("vdpa/mlx5: Add support for running with
> virtio_vdpa"), mlx5_vdpa starts with preallocate 1:1 DMA MR at device
> creation time. This 1:1 DMA MR will be implicitly destroyed while
> the first .set_map call is invoked
On Fri, Oct 13, 2023 at 3:36 PM Si-Wei Liu wrote:
>
>
>
> On 10/12/2023 7:49 PM, Jason Wang wrote:
> > On Tue, Oct 10, 2023 at 5:05 PM Si-Wei Liu wrote:
> >> Device specific IOMMU parent driver who wishes to see mapping to be
> >> decoupled from virtio or
On Fri, Oct 13, 2023 at 3:36 PM Si-Wei Liu wrote:
>
>
>
> On 10/12/2023 8:01 PM, Jason Wang wrote:
> > On Tue, Oct 10, 2023 at 5:05 PM Si-Wei Liu wrote:
> >> Devices with on-chip IOMMU or vendor specific IOTLB implementation
> >> may need to restore iotlb map
On Tue, Oct 17, 2023 at 4:30 AM Si-Wei Liu wrote:
>
>
>
> On 10/16/2023 4:28 AM, Eugenio Perez Martin wrote:
> > On Mon, Oct 16, 2023 at 8:33 AM Jason Wang wrote:
> >> On Fri, Oct 13, 2023 at 3:36 PM Si-Wei Liu wrote:
> >>>
> >>>
> >>&
On Tue, Oct 17, 2023 at 7:53 AM Alexei Starovoitov
wrote:
>
> On Sun, Oct 15, 2023 at 10:10 AM Akihiko Odaki
> wrote:
> >
> > On 2023/10/16 1:07, Alexei Starovoitov wrote:
> > > On Sun, Oct 15, 2023 at 7:17 AM Akihiko Odaki
> > > wrote:
> > >>
> > >> diff --git a/include/uapi/linux/bpf.h b/inc
On Mon, Oct 16, 2023 at 8:00 PM Xuan Zhuo wrote:
>
> ## AF_XDP
>
> XDP socket(AF_XDP) is an excellent bypass kernel network framework. The zero
> copy feature of xsk (XDP socket) needs to be supported by the driver. The
> performance of zero copy is very good. mlx5 and intel ixgbe already support
On Tue, Oct 17, 2023 at 11:11 AM Xuan Zhuo wrote:
>
> On Tue, 17 Oct 2023 10:53:44 +0800, Jason Wang wrote:
> > On Mon, Oct 16, 2023 at 8:00 PM Xuan Zhuo
> > wrote:
> > >
> > > ## AF_XDP
> > >
> > > XDP socket(AF_XDP) is an excellent bypas
On Tue, Oct 17, 2023 at 11:26 AM Xuan Zhuo wrote:
>
> On Tue, 17 Oct 2023 11:20:41 +0800, Jason Wang wrote:
> > On Tue, Oct 17, 2023 at 11:11 AM Xuan Zhuo
> > wrote:
> > >
> > > On Tue, 17 Oct 2023 10:53:44 +0800, Jason Wang
> > > wrote:
>
On Tue, Oct 17, 2023 at 11:28 AM Jason Wang wrote:
>
> On Tue, Oct 17, 2023 at 11:26 AM Xuan Zhuo wrote:
> >
> > On Tue, 17 Oct 2023 11:20:41 +0800, Jason Wang wrote:
> > > On Tue, Oct 17, 2023 at 11:11 AM Xuan Zhuo
> > > wrote:
> > > >
> &
On Tue, Oct 17, 2023 at 2:17 PM Xuan Zhuo wrote:
>
> On Tue, 17 Oct 2023 13:27:47 +0800, Jason Wang wrote:
> > On Tue, Oct 17, 2023 at 11:28 AM Jason Wang wrote:
> > >
> > > On Tue, Oct 17, 2023 at 11:26 AM Xuan Zhuo
> > > wrote:
> > > >
>
On Tue, Oct 17, 2023 at 3:00 PM Xuan Zhuo wrote:
>
> On Tue, 17 Oct 2023 14:26:01 +0800, Jason Wang wrote:
> > On Tue, Oct 17, 2023 at 2:17 PM Xuan Zhuo
> > wrote:
> > >
> > > On Tue, 17 Oct 2023 13:27:47 +0800, Jason Wang
> > > wrote:
> &
On Tue, Oct 17, 2023 at 7:28 PM Xuan Zhuo wrote:
>
> On Tue, 17 Oct 2023 14:43:33 +0800, Xuan Zhuo
> wrote:
> > On Tue, 17 Oct 2023 14:26:01 +0800, Jason Wang wrote:
> > > On Tue, Oct 17, 2023 at 2:17 PM Xuan Zhuo
> > > wrote:
> > > >
> >
On Wed, Oct 18, 2023 at 11:38 AM Xuan Zhuo wrote:
>
> On Tue, 17 Oct 2023 19:19:41 +0800, Xuan Zhuo
> wrote:
> > On Tue, 17 Oct 2023 14:43:33 +0800, Xuan Zhuo
> > wrote:
> > > On Tue, 17 Oct 2023 14:26:01 +0800, Jason Wang
> > > wrote:
> >
On Wed, Oct 18, 2023 at 12:36 PM Si-Wei Liu wrote:
>
>
>
> On 10/16/2023 7:35 PM, Jason Wang wrote:
> > On Tue, Oct 17, 2023 at 4:30 AM Si-Wei Liu wrote:
> >>
> >>
> >> On 10/16/2023 4:28 AM, Eugenio Perez Martin wrote:
> >>> On Mon, Oct
On Wed, Oct 18, 2023 at 1:27 PM Jason Wang wrote:
>
> On Wed, Oct 18, 2023 at 12:36 PM Si-Wei Liu wrote:
> >
> >
> >
> > On 10/16/2023 7:35 PM, Jason Wang wrote:
> > > On Tue, Oct 17, 2023 at 4:30 AM Si-Wei Liu wrote:
> > >>
> > &g
On Thu, Oct 19, 2023 at 7:21 AM Si-Wei Liu wrote:
>
>
>
> On 10/18/2023 4:14 AM, Eugenio Perez Martin wrote:
> > On Wed, Oct 18, 2023 at 10:44 AM Si-Wei Liu wrote:
> >>
> >>
> >> On 10/17/2023 10:27 PM, Jason Wang wrote:
> >>> On Wed, Oct
On Wed, Oct 18, 2023 at 4:49 PM Si-Wei Liu wrote:
>
>
>
> On 10/18/2023 12:00 AM, Jason Wang wrote:
> >> Unfortunately, it's a must to stick to ABI. I agree it's a mess but we
> >> don't have a better choice. Or we can fail the probe if userspace
>
On Mon, Oct 16, 2023 at 8:00 PM Xuan Zhuo wrote:
>
> Since free_old_xmit_skbs not only deals with skb, but also xdp frame and
> subsequent added xsk, so change the name of this function to
> free_old_xmit.
>
> Signed-off-by: Xuan Zhuo
Acked-by: Jason Wang
Thanks
&g
er old xmit ptr.
>
> Signed-off-by: Xuan Zhuo
Acked-by: Jason Wang
Thanks
> ---
> drivers/net/virtio_net.c | 76 +---
> 1 file changed, 33 insertions(+), 43 deletions(-)
>
> diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
>
On Mon, Oct 16, 2023 at 8:01 PM Xuan Zhuo wrote:
>
> Create a separate directory for virtio-net. AF_XDP support will be added
> later, then a separate xsk.c file will be added, so we should create a
> directory for virtio-net.
>
> Signed-off-by: Xuan Zhuo
Acked-by: J
On Mon, Oct 16, 2023 at 8:00 PM Xuan Zhuo wrote:
>
> Move some structure definitions and inline functions into the
> virtio_net.h file.
Some of the functions are not inline one before the moving. I'm not
sure what's the criteria to choose the function to be moved.
>
> Signed-off-by: Xuan Zhuo
On Mon, Oct 16, 2023 at 8:01 PM Xuan Zhuo wrote:
>
> We move some structures and APIs to the header file, but these
> structures and APIs do not prefixed with virtnet. This patch adds
> virtnet for these.
What's the benefit of doing this? AFAIK virtio-net is the only user
for virtio-net.h?
THank
On Mon, Oct 16, 2023 at 8:00 PM Xuan Zhuo wrote:
>
> This patch separates two sub-functions from virtnet_rx_resize():
>
> * virtnet_rx_pause
> * virtnet_rx_resume
>
> Then the subsequent reset rx for xsk can share these two functions.
>
> Signed-off-by: Xuan Zhuo
Ac
On Mon, Oct 16, 2023 at 8:00 PM Xuan Zhuo wrote:
>
> This patch separates two sub-functions from virtnet_tx_resize():
>
> * virtnet_tx_pause
> * virtnet_tx_resume
>
> Then the subsequent virtnet_tx_reset() can share these two functions.
>
> Signed-off-by: Xuan Zhuo
Ac
On Thu, Oct 19, 2023 at 2:47 PM Si-Wei Liu wrote:
>
>
>
> On 10/18/2023 7:53 PM, Jason Wang wrote:
> > On Wed, Oct 18, 2023 at 4:49 PM Si-Wei Liu wrote:
> >>
> >>
> >> On 10/18/2023 12:00 AM, Jason Wang wrote:
> >>>> Unfortunat
On Fri, Oct 20, 2023 at 6:28 AM Si-Wei Liu wrote:
>
>
>
> On 10/19/2023 7:39 AM, Eugenio Perez Martin wrote:
> > On Thu, Oct 19, 2023 at 10:27 AM Jason Wang wrote:
> >> On Thu, Oct 19, 2023 at 2:47 PM Si-Wei Liu wrote:
> >>>
> >>>
> >
On Mon, Oct 16, 2023 at 8:01 PM Xuan Zhuo wrote:
>
> If the xsk is enabling, the xsk tx will share the send queue.
> But the xsk requires that the send queue use the premapped mode.
> So the send queue must support premapped mode.
>
> Signed-off-by: Xuan Zhuo
> ---
> drivers/net/virtio/main.c
On Mon, Oct 16, 2023 at 8:01 PM Xuan Zhuo wrote:
>
> This patch implement the logic of bind/unbind xsk pool to sq and rq.
>
> Signed-off-by: Xuan Zhuo
> ---
> drivers/net/virtio/Makefile | 2 +-
> drivers/net/virtio/main.c | 10 +-
> drivers/net/virtio/virtio_net.h | 18
> dri
On Mon, Oct 16, 2023 at 8:01 PM Xuan Zhuo wrote:
>
> Since xsk's TX queue is consumed by TX NAPI, if sq is bound to xsk, then
> we must stop tx napi from being disabled.
>
> Signed-off-by: Xuan Zhuo
Acked-by: Jason Wang
Thanks
> ---
> drivers/net/virtio/main.c
On Mon, Oct 16, 2023 at 8:01 PM Xuan Zhuo wrote:
>
> The driver's tx napi is very important for XSK. It is responsible for
> obtaining data from the XSK queue and sending it out.
>
> At the beginning, we need to trigger tx napi.
>
> Signed-off-by: Xuan Zhuo
> ---
> drivers/net/virtio/main.c
On Mon, Oct 16, 2023 at 8:01 PM Xuan Zhuo wrote:
>
> xsk wakeup is used to trigger the logic for xsk xmit by xsk framework or
> user.
>
> Virtio-Net does not support to actively generate an interruption, so it
> tries to trigger tx NAPI on the tx interrupt cpu.
>
> Consider the effect of cache. Wh
On Mon, Oct 16, 2023 at 8:01 PM Xuan Zhuo wrote:
>
> virtnet_sq_free_unused_buf() check xsk buffer.
>
> Signed-off-by: Xuan Zhuo
Acked-by: Jason Wang
Thanks
> ---
> drivers/net/virtio/main.c | 6 --
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff
On Mon, Oct 16, 2023 at 8:01 PM Xuan Zhuo wrote:
>
> Implement the logic of filling vq with XSK buffer.
>
> Signed-off-by: Xuan Zhuo
> ---
> drivers/net/virtio/main.c | 13 +++
> drivers/net/virtio/virtio_net.h | 5 +++
> drivers/net/virtio/xsk.c| 66 ++
On Mon, Oct 16, 2023 at 8:01 PM Xuan Zhuo wrote:
>
> Implementing the logic of xsk rx. If this packet is not for XSK
> determined in XDP, then we need to copy once to generate a SKB.
> If it is for XSK, it is a zerocopy receive packet process.
>
> Signed-off-by: Xuan Zhuo
> ---
> drivers/net/vir
On Mon, Oct 16, 2023 at 8:01 PM Xuan Zhuo wrote:
>
> If send queue sent some packets, we update the tx timeout
> record to prevent the tx timeout.
>
> Signed-off-by: Xuan Zhuo
Acked-by: Jason Wang
Thanks
> ---
> drivers/net/virtio/xsk.c | 10 ++
> 1 fil
On Thu, Oct 19, 2023 at 3:20 PM Xuan Zhuo wrote:
>
> On Thu, 19 Oct 2023 14:12:55 +0800, Jason Wang wrote:
> > On Mon, Oct 16, 2023 at 8:00 PM Xuan Zhuo
> > wrote:
> > >
> > > Move some structure definitions and inline functions into the
> > > vir
On Fri, Oct 20, 2023 at 11:58 PM Maxime Coquelin
wrote:
>
> Virtio-net driver control queue implementation is not safe
> when used with VDUSE. If the VDUSE application does not
> reply to control queue messages, it currently ends up
> hanging the kernel thread sending this command.
>
> Some work i
On Fri, Oct 20, 2023 at 11:58 PM Maxime Coquelin
wrote:
>
> This patch introduces LSM hooks for devices creation,
> destruction and opening operations, checking the
> application is allowed to perform these operations for
> the Virtio device type.
>
> Signed-off-by: Maxime Coquelin
> ---
Hi Maxi
Hi Si-Wei:
On Sat, Oct 21, 2023 at 5:28 PM Si-Wei Liu wrote:
>
> In order to reduce needlessly high setup and teardown cost
> of iotlb mapping during live migration, it's crucial to
> decouple the vhost-vdpa iotlb abstraction from the virtio
> device life cycle, i.e. iotlb mappings should be left
a shadow page table instead of the userspace one
to avoid things like spec barriers or SMAP.
I've tried this in the past:
commit 7f466032dc9e5a61217f22ea34b2df932786bbfc (HEAD)
Author: Jason Wang
Date: Fri May 24 04:12:18 2019 -0400
vhost: access vq metadata through kernel virtual a
On Sat, Oct 21, 2023 at 5:28 PM Si-Wei Liu wrote:
>
> Using .compat_reset op from the previous patch, the buggy .reset
> behaviour can be kept as-is on older userspace apps, which don't ack the
> IOTLB_PERSIST backend feature. As this compatibility quirk is limited to
> those drivers that used to
On Wed, Oct 25, 2023 at 12:25 AM Si-Wei Liu wrote:
>
>
>
> On 10/24/2023 9:21 AM, Si-Wei Liu wrote:
> >
> >
> > On 10/23/2023 10:45 PM, Jason Wang wrote:
> >> On Sat, Oct 21, 2023 at 5:28 PM Si-Wei Liu
> >> wrote:
> >>> Usin
On Tue, Oct 24, 2023 at 8:03 PM Heng Qi wrote:
>
>
>
> 在 2023/10/12 下午4:29, Jason Wang 写道:
> > On Thu, Oct 12, 2023 at 3:44 PM Heng Qi wrote:
> >> Now, virtio-net already supports per-queue moderation parameter
> >> setting. Based on this, we use th
rsa.
>
> Signed-off-by: Heng Qi
Acked-by: Jason Wang
Thanks
> ---
> drivers/net/virtio_net.c | 6 +-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
> index a52fd743504a..cf5d2ef4bd24 100644
&
On Thu, Oct 12, 2023 at 3:44 PM Heng Qi wrote:
>
> Extract commands to set virtqueue coalescing parameters for reuse
> by ethtool -Q, vq resize and netdim.
>
> Signed-off-by: Heng Qi
Acked-by: Jason Wang
Thanks
> ---
> drivers/n
On Thu, Oct 12, 2023 at 3:44 PM Heng Qi wrote:
>
> By comparing the traffic information in the complete napi processes,
> let the virtio-net driver automatically adjust the coalescing
> moderation parameters of each receive queue.
>
> Signed-off-by: Heng Qi
> ---
> drivers/net/virtio_net.c | 147
On Thu, Oct 12, 2023 at 3:44 PM Heng Qi wrote:
>
> Similar to rx netdim, this patch supports adaptive tx
> coalescing moderation for the virtio-net.
>
> Signed-off-by: Heng Qi
> ---
> drivers/net/virtio_net.c | 143 ---
> 1 file changed, 119 insertions(+), 24
On Fri, Oct 27, 2023 at 4:07 AM Steve Sistare wrote:
>
> mlx5_vdpa does not preserve userland's view of vring base for the control
> queue in the following sequence:
>
> ioctl VHOST_SET_VRING_BASE
> ioctl VHOST_VDPA_SET_STATUS VIRTIO_CONFIG_S_DRIVER_OK
> mlx5_vdpa_set_status()
> setup_cvq_vr
On Mon, Oct 30, 2023 at 10:06 PM Steven Sistare
wrote:
>
> On 10/27/2023 2:31 AM, Jason Wang wrote:
> > On Fri, Oct 27, 2023 at 4:07 AM Steve Sistare
> > wrote:
> >>
> >> mlx5_vdpa does not preserve userland's view of vring base for the con
uffers
> > completely zeroed out.
> >
> > Fixes: abebb16254b3 ("vdpa_sim_blk: support shared backend")
> > Suggested-by: Qing Wang
>
> Acked-by: Eugenio Pérez
Acked-by: Jason Wang
Thanks
>
> > Signed-off-by: Stefano Garzarella
> > ---
> > dr
of the existing structure
> staying unchanged. Add a warning to avoid using sizeof.
>
> Signed-off-by: Michael S. Tsirkin
Acked-by: Jason Wang
Thanks
> ---
> drivers/virtio/virtio_pci_modern_dev.c | 7 ---
> include/linux/virtio_pci_modern.h | 7 ---
> include
host-vdpa: Call ida_simple_remove() when failed")
> Signed-off-by: Dan Carpenter
Acked-by: Jason Wang
Thanks
> ---
> drivers/vhost/vdpa.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
> index 9a2343c45df0..1aa67729e18
On Wed, Nov 1, 2023 at 6:55 PM Heng Qi wrote:
>
>
>
> 在 2023/10/25 上午11:34, Jason Wang 写道:
> > On Thu, Oct 12, 2023 at 3:44 PM Heng Qi wrote:
> >> By comparing the traffic information in the complete napi processes,
> >> let the virtio-net driver
On Wed, Nov 1, 2023 at 7:03 PM Heng Qi wrote:
>
>
>
> 在 2023/10/25 下午1:53, Michael S. Tsirkin 写道:
> > On Wed, Oct 25, 2023 at 09:18:27AM +0800, Jason Wang wrote:
> >> On Tue, Oct 24, 2023 at 8:03 PM Heng Qi wrote:
> >>>
> >>>
> >>>
On Wed, Nov 1, 2023 at 5:38 PM Heng Qi wrote:
>
>
>
> 在 2023/10/25 上午9:18, Jason Wang 写道:
> > On Tue, Oct 24, 2023 at 8:03 PM Heng Qi wrote:
> >>
> >>
> >> 在 2023/10/12 下午4:29, Jason Wang 写道:
> >>> On Thu, Oct 12, 2023 at 3:44 PM Heng Qi
T_VRING_BASE
> >
> > To fix, restore the value of cvq->vring.last_avail_idx after calling
> > vringh_init_iotlb.
> >
>
> Fixes tag missing?
+1
>
> Apart from that,
>
> Acked-by: Eugenio Pérez
With the fix tag added.
Acked-by: Jason Wang
Thanks
On Sat, Nov 4, 2023 at 1:16 AM Cindy Lu wrote:
>
>
> Hi All
> This code provides the iommufd support for vdpa device
> This code fixes the bugs from the last version and also add the asid support.
> rebase on kernel
> v6,6-rc3
> Test passed in the physical device (vp_vdpa), but there are still s
On Sat, Nov 4, 2023 at 1:17 AM Cindy Lu wrote:
>
> Add new vdpa_config_ops function to support iommufd
>
> Signed-off-by: Cindy Lu
> ---
> drivers/vdpa/virtio_pci/vp_vdpa.c | 4
> 1 file changed, 4 insertions(+)
>
> diff --git a/drivers/vdpa/virtio_pci/vp_vdpa.c
> b/drivers/vdpa/virtio_pci
On Sat, Nov 4, 2023 at 1:18 AM Cindy Lu wrote:
>
> Expose the function iommu_device_use_default_domain() and
> iommu_device_unuse_default_domain()，
> While vdpa bind the iommufd device and detach the iommu device,
> vdpa need to call the function
> iommu_device_unuse_default_domain() to release th
On Sat, Nov 4, 2023 at 1:17 AM Cindy Lu wrote:
>
> VHOST_VDPA_SET_IOMMU_FD: bind the device to iommufd device
>
> VDPA_DEVICE_ATTACH_IOMMUFD_AS: Attach a vdpa device to an iommufd
> address space specified by IOAS id.
>
> VDPA_DEVICE_DETACH_IOMMUFD_AS: Detach a vdpa device
> from the iommufd addre
On Sat, Nov 4, 2023 at 1:17 AM Cindy Lu wrote:
>
> VHOST_VDPA_SET_IOMMU_FD: bind the device to iommufd device
>
> VDPA_DEVICE_ATTACH_IOMMUFD_AS: Attach a vdpa device to an iommufd
> address space specified by IOAS id.
>
> VDPA_DEVICE_DETACH_IOMMUFD_AS: Detach a vdpa device
> from the iommufd addre
1%/ -18%
4096/ 1/ +2%/0%
4096/ 2/ +3%/ -19%
4096/ 4/ -1%/ -19%
16384/ 1/ -3%/ -1%
16384/ 2/0%/ -12%
16384/ 4/0%/ -10%
Jason Wang (2):
virtio_net: multiqueue support
virtio-net: change the number of queues through ethtool
Krishna Kumar (1):
vi
From: Krishna Kumar
Introduce VIRTIO_NET_F_MULTIQUEUE.
Signed-off-by: Krishna Kumar
Signed-off-by: Jason Wang
---
include/uapi/linux/virtio_net.h |1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/include/uapi/linux/virtio_net.h b/include/uapi/linux/virtio_net.h
index
ckets from the same flow, driver
would let the device (usually tuntap) to use the 'rx follows tx' packet steering
rules when working in multiqueue mode. In this mode, the device would select the
rxq based on the last queue where the packet of the flow were sent.
Signed-off-by: Jason Wang
-
This patch implement the {set|get}_channels method of ethool to allow user to
change the number of queues dymaically when the device is running. This would
let the user to tune the device for specific applications.
Signed-off-by: Jason Wang
---
drivers/net/virtio_net.c | 43
On 10/31/2012 03:05 AM, Rick Jones wrote:
On 10/30/2012 03:03 AM, Jason Wang wrote:
Hi 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 r
On 11/05/2012 07:16 AM, Rusty Russell wrote:
Jason Wang writes:
This addes multiqueue support to virtio_net driver. There's two mode supported:
single queue pair mode and multiple queue pairs mode. An obvious
difference compared with a physical mq card is that virtio-net reserve
firs
On 11/05/2012 07:46 AM, Rusty Russell wrote:
Jason Wang writes:
This patch implement the {set|get}_channels method of ethool to allow user to
change the number of queues dymaically when the device is running. This would
let the user to tune the device for specific applications
On 11/05/2012 09:08 AM, Rusty Russell wrote:
Jason Wang writes:
+struct virtnet_info {
+ u16 num_queue_pairs;/* # of RX/TX vq pairs */
+ u16 total_queue_pairs;
+
+ struct send_queue *sq;
+ struct receive_queue *rq;
+ struct virtqueue *cvq
On 11/22/2012 10:46 PM, Michael S. Tsirkin wrote:
Add RFS support to virtio network device.
Add a new feature flag VIRTIO_NET_F_RFS for this feature, a new
configuration field max_virtqueue_pairs to detect supported number of
virtqueues as well as a new command VIRTIO_NET_CTRL_RFS to program
pack
skb if no other
pakcet will be sent afterwards.
Solving this issue by introducing a new flag IFF_TX_SKB_FREE_DELAY which could
notify the pktgen that the device does not free skb immediately after it has
been sent and let it not to wait for the refcount to be one.
Signed-off-by: Jason Wang
On 11/27/2012 01:37 AM, Stephen Hemminger wrote:
On Mon, 26 Nov 2012 15:56:52 +0800
Jason Wang wrote:
Some deivces do not free the old tx skbs immediately after it has been sent
(usually in tx interrupt). One such example is virtio-net which optimizes for
virt and only free the possible old
/127
- V5: http://lwn.net/Articles/505388/
- V4: https://lkml.org/lkml/2012/6/25/120
- V2: http://lwn.net/Articles/467283/
Perf Numbers:
Will do some basic test and post as a reply to this mail.
Jason Wang (3):
virtio-net: separate fields of sending/receiving queue from
virtnet_info
virtio_
-off-by: Jason Wang
---
drivers/net/virtio_net.c | 289 +-
1 files changed, 158 insertions(+), 131 deletions(-)
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 26c502e..7975133 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers
processor id.
- smp affinity hint were set to the vcpu that owns the queue pairs.
Signed-off-by: Krishna Kumar
Signed-off-by: Jason Wang
---
drivers/net/virtio_net.c| 454 ++-
include/uapi/linux/virtio_net.h | 16 ++
2 files changed, 371 insertions
This patch implement the {set|get}_channels method of ethool to allow user to
change the number of queues dymaically when the device is running. This would
let the user to configure it on demand.
Signed-off-by: Jason Wang
---
drivers/net/virtio_net.c | 41
On 11/28/2012 12:49 AM, Stephen Hemminger wrote:
On Tue, 27 Nov 2012 14:45:13 +0800
Jason Wang wrote:
On 11/27/2012 01:37 AM, Stephen Hemminger wrote:
On Mon, 26 Nov 2012 15:56:52 +0800
Jason Wang wrote:
Some deivces do not free the old tx skbs immediately after it has been sent
(usually
On Wednesday, November 28, 2012 08:53:05 AM Stephen Hemminger wrote:
> On Wed, 28 Nov 2012 14:48:52 +0800
>
> Jason Wang wrote:
> > On 11/28/2012 12:49 AM, Stephen Hemminger wrote:
> > > On Tue, 27 Nov 2012 14:45:13 +0800
> > >
> > > Jason Wang wro
On Monday, December 03, 2012 12:25:42 PM Rusty Russell wrote:
> Jason Wang writes:
> > To support multiqueue transmitq/receiveq, the first step is to separate
> > queue related structure from virtnet_info. This patch introduce
> > send_queue and receive_queue structure and us
On Sunday, December 02, 2012 06:06:31 PM Michael S. Tsirkin wrote:
> On Tue, Nov 27, 2012 at 06:15:59PM +0800, Jason Wang wrote:
> > This addes multiqueue support to virtio_net driver. In multiple queue
> > modes, the driver expects the number of queue paris is equal to the
> >
On Monday, December 03, 2012 12:34:08 PM Rusty Russell wrote:
> Jason Wang writes:
> > +static const struct ethtool_ops virtnet_ethtool_ops;
> > +
> > +/*
> > + * Converting between virtqueue no. and kernel tx/rx queue no.
> > + * 0:rx0 1:tx0 2:cvq
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