On Wed, Mar 27, 2024 at 10:34 AM Jason Wang wrote:
>
> On Wed, Mar 27, 2024 at 7:39 AM Gavin Shan wrote:
> >
> > A smp_rmb() has been missed in vhost_vq_avail_empty(), spotted by
> > Will Deacon . Otherwise, it's not ensured the
> > available ring entries pushed by
mb();
> + return true;
> + }
>
> - return vq->avail_idx != vq->last_avail_idx;
> + return false;
So we only care about the case when vhost_enable_notify() returns true.
In that case, I think you want to order with vhost_get_vq_desc():
last_avail_i
On Wed, Mar 27, 2024 at 7:39 AM Gavin Shan wrote:
>
> A smp_rmb() has been missed in vhost_vq_avail_empty(), spotted by
> Will Deacon . Otherwise, it's not ensured the
> available ring entries pushed by guest can be observed by vhost
> in time, leading to stale available ring entries fetched by
On Wed, Mar 20, 2024 at 6:20 PM Wang Rong wrote:
>
> From: Rong Wang
>
> Once enable iommu domain for one device, the MSI
> translation tables have to be there for software-managed MSI.
> Otherwise, platform with software-managed MSI without an
> irq bypass function, can not get a correct memory
On Mon, Mar 11, 2024 at 9:28 PM wangyunjian wrote:
>
>
>
> > -Original Message-
> > From: Jason Wang [mailto:jasow...@redhat.com]
> > Sent: Monday, March 11, 2024 12:01 PM
> > To: wangyunjian
> > Cc: Michael S. Tsirkin ; Paolo Abeni ;
> > wil
On Mon, Mar 4, 2024 at 9:45 PM wangyunjian wrote:
>
>
>
> > -Original Message-
> > From: Michael S. Tsirkin [mailto:m...@redhat.com]
> > Sent: Friday, March 1, 2024 7:53 PM
> > To: wangyunjian
> > Cc: Paolo Abeni ; willemdebruijn.ker...@gmail.com;
> > jasow...@redhat.com;
sending in the tun side.
> > 3. Kick the vhost_net to do rx processing.
> > 4. verify the data received by vhost_net is correct.
> >
> > Signed-off-by: Yunsheng Lin
>
> @Jason: AFAICS this addresses the points you raised on v5, could you
> please have a look?
>
> Thanks!
Looks good to me.
Acked-by: Jason Wang
Thanks
>
> Paolo
>
>
On Sat, Mar 2, 2024 at 2:40 AM Willem de Bruijn
wrote:
>
> Maciej Fijalkowski wrote:
> > On Wed, Feb 28, 2024 at 07:05:56PM +0800, Yunjian Wang wrote:
> > > This patch set allows TUN to support the AF_XDP Tx zero-copy feature,
> > > which can significantly reduce CPU utilization for XDP programs.
On Mon, Mar 4, 2024 at 7:24 PM wangyunjian wrote:
>
>
>
> > -Original Message-
> > From: Jason Wang [mailto:jasow...@redhat.com]
> > Sent: Monday, March 4, 2024 2:56 PM
> > To: wangyunjian
> > Cc: m...@redhat.com; willemdebruijn.ker...@gmail.com
On Wed, Feb 28, 2024 at 7:06 PM Yunjian Wang wrote:
>
> This patch set allows TUN to support the AF_XDP Tx zero-copy feature,
> which can significantly reduce CPU utilization for XDP programs.
>
> Since commit fc72d1d54dd9 ("tuntap: XDP transmission"), the pointer
> ring has been utilized to
On Fri, Feb 23, 2024 at 3:22 AM Michael S. Tsirkin wrote:
>
> On Tue, Jul 25, 2023 at 11:03:11AM +0800, Jason Wang wrote:
> > On Mon, Jul 24, 2023 at 3:18 PM Michael S. Tsirkin wrote:
> > >
> > > On Mon, Jul 24, 2023 at 02:52:49PM +0800, Jason Wang wrote:
> >
On Fri, Feb 23, 2024 at 9:42 AM Xuan Zhuo wrote:
>
> On Fri, 09 Feb 2024 13:57:25 +0100, Paolo Abeni wrote:
> > On Fri, 2024-02-09 at 18:39 +0800, Liang Chen wrote:
> > > On Wed, Feb 7, 2024 at 10:27 PM Paolo Abeni wrote:
> > > >
> > > > On Wed, 2024-02-07 at 10:54 +0800, Liang Chen wrote:
> >
On Tue, Feb 6, 2024 at 10:52 PM Stefano Garzarella wrote:
>
> If VHOST_BACKEND_F_ENABLE_AFTER_DRIVER_OK is not negotiated, we expect
> the driver to enable virtqueue before setting DRIVER_OK. If the driver
> tries anyway, better to fail right away as soon as we get the ioctl.
> Let's also update
On Mon, Feb 5, 2024 at 8:46 PM Yunsheng Lin wrote:
>
> introduce vhost_net_test for both vhost_net tx and rx basing
> on virtio_test to test vhost_net changing in the kernel.
>
> Steps for vhost_net tx testing:
> 1. Prepare a out buf.
> 2. Kick the vhost_net to do tx processing.
> 3. Do the
gt; Cc: Greg Kroah-Hartman
> Suggested-by: Greg Kroah-Hartman
> Signed-off-by: Ricardo B. Marliere
> ---
Acked-by: Jason Wang
Thanks
On Sun, Feb 4, 2024 at 11:50 AM Yunsheng Lin wrote:
>
> On 2024/2/4 9:30, Jason Wang wrote:
> > On Fri, Feb 2, 2024 at 8:24 PM Yunsheng Lin wrote:
> >>
> >> On 2024/2/2 12:05, Jason Wang wrote:
> >>> On Tue, Jan 30, 2024 at 7:38 PM Yunsheng
On Fri, Feb 2, 2024 at 8:24 PM Yunsheng Lin wrote:
>
> On 2024/2/2 12:05, Jason Wang wrote:
> > On Tue, Jan 30, 2024 at 7:38 PM Yunsheng Lin wrote:
> >>
> >> introduce vhost_net_test basing on virtio_test to test
> >> vhost_net changing in the kernel.
&
On Tue, Jan 30, 2024 at 7:38 PM Yunsheng Lin wrote:
>
> introduce vhost_net_test basing on virtio_test to test
> vhost_net changing in the kernel.
Let's describe what kind of test is being done and how it is done here.
>
> Signed-off-by: Yunsheng Lin
> ---
> tools/virtio/.gitignore |
.@daynix.com/#r
>
> Signed-off-by: Liang Chen
> Reviewed-by: Xuan Zhuo
Acked-by: Jason Wang
Thanks
On Mon, Jan 29, 2024 at 7:40 PM wangyunjian wrote:
>
> > -Original Message-
> > From: Jason Wang [mailto:jasow...@redhat.com]
> > Sent: Monday, January 29, 2024 11:03 AM
> > To: wangyunjian
> > Cc: m...@redhat.com; willemdebruijn.ker...@gmail.com; k...@ke
On Mon, Jan 29, 2024 at 7:10 PM wangyunjian wrote:
>
> > -Original Message-
> > From: Jason Wang [mailto:jasow...@redhat.com]
> > Sent: Monday, January 29, 2024 11:05 AM
> > To: wangyunjian
> > Cc: m...@redhat.com; willemdebruijn.ker...@gmail.com; k...@ke
On Sat, Jan 27, 2024 at 5:34 PM wangyunjian wrote:
>
> > > -Original Message-
> > > From: Jason Wang [mailto:jasow...@redhat.com]
> > > Sent: Thursday, January 25, 2024 12:49 PM
> > > To: wangyunjian
> > > Cc: m...@redhat.com; willemdebr
On Thu, Jan 25, 2024 at 8:54 PM wangyunjian wrote:
>
>
>
> > -Original Message-
> > From: Jason Wang [mailto:jasow...@redhat.com]
> > Sent: Thursday, January 25, 2024 12:49 PM
> > To: wangyunjian
> > Cc: m...@redhat.com; willemdebruijn.ke
On Wed, Jan 24, 2024 at 5:38 PM Yunjian Wang wrote:
>
> Now the zero-copy feature of AF_XDP socket is supported by some
> drivers, which can reduce CPU utilization on the xdp program.
> This patch set allows tun to support AF_XDP Rx zero-copy feature.
>
> This patch tries to address this by:
> -
On Wed, Jan 24, 2024 at 5:16 PM Xuan Zhuo wrote:
>
> On Wed, 24 Jan 2024 16:57:20 +0800, Liang Chen
> wrote:
> > For the XDP_PASS scenario of the XDP path, the skb constructed with
> > xdp_buff does not include the virtio header. Adding the virtio header
> > information back when creating the
On Thu, Jan 25, 2024 at 3:05 AM Willem de Bruijn
wrote:
>
> Yunjian Wang wrote:
> > Now the zero-copy feature of AF_XDP socket is supported by some
> > drivers, which can reduce CPU utilization on the xdp program.
> > This patch set allows tun to support AF_XDP Rx zero-copy feature.
> >
> > This
On Mon, Jan 22, 2024 at 6:23 PM Liang Chen wrote:
>
> The RSS hash report is a feature that's part of the virtio specification.
> Currently, virtio backends like qemu, vdpa (mlx5), and potentially vhost
> (still a work in progress as per [1]) support this feature. While the
> capability to obtain
set.
>
> Fixes: 0c89e2a3a9d0 ("vdpa_sim: Implement suspend vdpa op")
> Signed-off-by: Steve Sistare
> Reviewed-by: Eugenio Pérez
Acked-by: Jason Wang
Thanks
On Thu, Jan 18, 2024 at 4:32 AM Steven Sistare
wrote:
>
> On 1/10/2024 9:55 PM, Jason Wang wrote:
> > On Thu, Jan 11, 2024 at 4:40 AM Steve Sistare
> > wrote:
> >>
> >> Live update is a technique wherein an application saves its state, exec's
> >>
On Thu, Jan 18, 2024 at 4:32 AM Steven Sistare
wrote:
>
> On 1/10/2024 10:08 PM, Jason Wang wrote:
> > On Thu, Jan 11, 2024 at 4:40 AM Steve Sistare
> > wrote:
> >>
> >> When device ownership is passed to a new process via VHOST_NEW_OWNER,
> >&g
On Fri, Jan 12, 2024 at 12:18 AM Mike Christie
wrote:
>
> On 1/10/24 9:09 PM, Jason Wang wrote:
> > On Thu, Jan 11, 2024 at 4:40 AM Steve Sistare
> > wrote:
> >>
> >> To pass ownership of a live vdpa device to a new process, the user
> >> suspend
On Wed, Jan 10, 2024 at 2:23 PM Zheyun Shen wrote:
>
> For now, SEV pins guest's memory to avoid swapping or
> moving ciphertext, but leading to the inhibition of
> Memory Ballooning.
>
> In Memory Ballooning, only guest's free pages will be relocated
> in balloon inflation and deflation, so the
.
>
> Some work is on-going to make the control queue
> implementation robust with VDUSE. Until it is completed,
> let's fail features check if control-queue feature is
> requested.
>
> Signed-off-by: Maxime Coquelin
Acked-by: Jason Wang
Thanks
> ---
> drivers/vdpa
On Thu, Jan 11, 2024 at 4:40 AM Steve Sistare wrote:
>
> To pass ownership of a live vdpa device to a new process, the user
> suspends the device, calls VHOST_NEW_OWNER to change the mm, and calls
> VHOST_IOTLB_REMAP to change the user virtual addresses to match the new
> mm. Flush workers in
On Thu, Jan 11, 2024 at 4:40 AM Steve Sistare wrote:
>
> To pass ownership of a live vdpa device to a new process, the user
> suspends the device, calls VHOST_NEW_OWNER to change the mm, and calls
> VHOST_IOTLB_REMAP to change the user virtual addresses to match the new
> mm. Flush workers in
On Thu, Jan 11, 2024 at 4:40 AM Steve Sistare wrote:
>
> When device ownership is passed to a new process via VHOST_NEW_OWNER,
> some devices need to know the new userland addresses of the dma mappings.
> Define the new iotlb message type VHOST_IOTLB_REMAP to update the uaddr
> of a mapping. The
On Thu, Jan 11, 2024 at 4:40 AM Steve Sistare wrote:
>
> Live update is a technique wherein an application saves its state, exec's
> to an updated version of itself, and restores its state. Clients of the
> application experience a brief suspension of service, on the order of
> 100's of
On Fri, Jan 5, 2024 at 6:14 PM Maxime Coquelin
wrote:
>
>
>
> On 1/5/24 10:59, Eugenio Perez Martin wrote:
> > On Fri, Jan 5, 2024 at 9:12 AM Maxime Coquelin
> > wrote:
> >>
> >>
> >>
> >> On 1/5/24 03:45, Jason Wang wrote:
> &
d-only. It also fails with
> -EPERM if the CAP_NET_ADMIN is missing.
>
> Signed-off-by: Maxime Coquelin
> ---
Acked-by: Jason Wang
Thanks
F_CTRL_VQ) |\
> +BIT_ULL(VIRTIO_NET_F_CTRL_RX) | \
> +BIT_ULL(VIRTIO_NET_F_CTRL_VLAN) | \
> +BIT_ULL(VIRTIO_NET_F_GUEST_ANNOUNCE) | \
> +BIT_ULL(VIRTIO_NET_F_MQ) | \
> +BIT_ULL(VIRTIO_NET_F_CTRL_MAC_ADDR) | \
> +
the device, the driver looks for a shared memory region of id 0.
> If it is found, this feature is understood. Otherwise, this feature
> bit is cleared.
>
> During probe, if VIRTIO_PMEM_F_SHMEM_REGION has been negotiated,
> virtio pmem ignores the `start` and `size` fields in dev
On Fri, Dec 22, 2023 at 7:22 PM Dragos Tatulea wrote:
>
> On Wed, 2023-12-20 at 13:55 +0100, Dragos Tatulea wrote:
> > On Wed, 2023-12-20 at 11:46 +0800, Jason Wang wrote:
> > > On Wed, Dec 20, 2023 at 2:09 AM Dragos Tatulea
> > > wrote:
> > > &g
On Thu, Dec 21, 2023 at 3:47 PM Eugenio Perez Martin
wrote:
>
> On Thu, Dec 21, 2023 at 3:03 AM Jason Wang wrote:
> >
> > On Wed, Dec 20, 2023 at 9:32 PM Eugenio Perez Martin
> > wrote:
> > >
> > > On Wed, Dec 20, 2023 at 5:06 AM Jason Wang wrote:
>
On Thu, Dec 21, 2023 at 10:48 AM Yunsheng Lin wrote:
>
> On 2023/12/21 10:33, Jason Wang wrote:
> > On Wed, Dec 20, 2023 at 8:45 PM Yunsheng Lin wrote:
> >>
> >> On 2023/12/12 12:35, Jason Wang wrote:>>>> +done:
> >>>>>> + ba
On Wed, Dec 20, 2023 at 8:45 PM Yunsheng Lin wrote:
>
> On 2023/12/12 12:35, Jason Wang wrote:>>>> +done:
> >>>> + backend.fd = tun_alloc();
> >>>> + assert(backend.fd >= 0);
> >>>> + vdev_info_init(, features
On Wed, Dec 20, 2023 at 9:32 PM Eugenio Perez Martin
wrote:
>
> On Wed, Dec 20, 2023 at 5:06 AM Jason Wang wrote:
> >
> > On Wed, Dec 20, 2023 at 11:46 AM Jason Wang wrote:
> > >
> > > On Wed, Dec 20, 2023 at 2:09 AM Dragos Tatulea
> > > wrote:
On Wed, Dec 20, 2023 at 11:46 AM Jason Wang wrote:
>
> On Wed, Dec 20, 2023 at 2:09 AM Dragos Tatulea wrote:
> >
> > The virtio spec doesn't allow changing virtqueue addresses after
> > DRIVER_OK. Some devices do support this operation when the
register_device(_vdpa->vdpa, eni_vdpa->queues);
> > if (ret) {
> > ENI_ERR(pdev, "failed to register to vdpa bus\n");
> > - goto err;
> > + goto err_remove_vp_legacy;
> > }
> >
> > return 0;
> >
> > +err_remove_vp_legacy:
> > + vp_legacy_remove(_vdpa->ldev);
> > err:
> > put_device(_vdpa->vdpa.dev);
> > return ret;
>
> Polite reminder on a (very) old patch.
Acked-by: Jason Wang
Thanks
>
> CJ
>
On Tue, Dec 19, 2023 at 3:19 PM Changyuan Lyu wrote:
>
> As per virtio spec 1.2 section 5.19.5.2, if the feature
> VIRTIO_PMEM_F_SHMEM_REGION has been negotiated, the driver MUST query
> shared memory ID 0 for the physical address ranges.
>
> Signed-off-by: Changyuan Lyu
> ---
>
On Mon, Dec 11, 2023 at 1:52 AM Christophe JAILLET
wrote:
>
> ida_alloc() and ida_free() should be preferred to the deprecated
> ida_simple_get() and ida_simple_remove().
>
> This is less verbose.
>
> Signed-off-by: Christophe JAILLET
Acked-by: Jason Wang
Thanks
> --
On Mon, Dec 18, 2023 at 5:21 PM Maxime Coquelin
wrote:
>
>
>
> On 12/18/23 03:50, Jason Wang wrote:
> > On Wed, Dec 13, 2023 at 7:23 PM Maxime Coquelin
> > wrote:
> >>
> >> Hi Jason,
> >>
> >> On 12/13/23 05:52, Jason Wang wrote:
> &
On Tue, Dec 19, 2023 at 12:36 AM Willem de Bruijn
wrote:
>
> Steffen Trumtrar wrote:
> > This series tries to pick up the work on the virtio-net timestamping
> > feature from Willem de Bruijn.
> >
> > Original series
> > Message-Id: 20210208185558.995292-1-willemdebruijn.ker...@gmail.com
> >
hen the mkey is unlinked from the vq (trough modify/destroy)
> and from the mr asid table.
>
> To make things consistent, get rid of mlx5_vdpa_destroy_mr and use
> get/put semantics everywhere.
>
> Reviewed-by: Gal Pressman
> Acked-by: Eugenio Pérez
> Signed-off-by: Dragos Tatulea
> ---
Acked-by: Jason Wang
Thanks
n't support resumable vqs, do the old teardown and
> setup dance.
>
> Reviewed-by: Gal Pressman
> Acked-by: Eugenio Pérez
> Signed-off-by: Dragos Tatulea
> ---
Acked-by: Jason Wang
Thanks
eviewed-by: Gal Pressman
> Signed-off-by: Dragos Tatulea
> ---
Acked-by: Jason Wang
Thanks
On Wed, Dec 20, 2023 at 2:10 AM Dragos Tatulea wrote:
>
> Implement vdpa vq and device resume if capability detected. Add support
> for suspend -> ready state change.
>
> Reviewed-by: Gal Pressman
> Acked-by: Eugenio Pérez
> Signed-off-by: Dragos Tatulea
Acked-by: Jason Wang
Thanks
Gal Pressman
> Acked-by: Eugenio Pérez
> Signed-off-by: Dragos Tatulea
Acked-by: Jason Wang
Thanks
On Wed, Dec 20, 2023 at 2:09 AM Dragos Tatulea wrote:
>
> Set vdpa device suspended state on successful suspend. Clear it on
> successful resume and reset.
>
> The state will be locked by the vhost_vdpa mutex. The mutex is taken
> during suspend, resume and reset in vhost_vdpa_unlocked_ioctl. The
On Wed, Dec 20, 2023 at 2:09 AM Dragos Tatulea wrote:
>
> The virtio spec doesn't allow changing virtqueue addresses after
> DRIVER_OK. Some devices do support this operation when the device is
> suspended. The VHOST_BACKEND_F_CHANGEABLE_VQ_ADDR_IN_SUSPEND flag
> advertises this support as a
On Wed, Dec 20, 2023 at 2:09 AM Dragos Tatulea wrote:
>
> Necessary for checking if resumable vqs are supported by the hardware.
> Actual support will be added in a downstream patch.
>
> Reviewed-by: Gal Pressman
> Acked-by: Eugenio Pérez
> Signed-off-by: Dragos Tatulea
On Wed, Dec 13, 2023 at 7:23 PM Maxime Coquelin
wrote:
>
> Hi Jason,
>
> On 12/13/23 05:52, Jason Wang wrote:
> > On Tue, Dec 12, 2023 at 9:17 PM Maxime Coquelin
> > wrote:
> >>
> >> Virtio-net driver control queue implementation is not safe
> >
On Tue, Dec 12, 2023 at 9:17 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
On Thu, Dec 7, 2023 at 7:28 PM Yunsheng Lin wrote:
>
> On 2023/12/7 14:00, Jason Wang wrote:
> > On Tue, Dec 5, 2023 at 7:35 PM Yunsheng Lin wrote:
> ...
>
> >> +
> >> +static int tun_alloc(void)
> >> +{
> >> + struct ifreq ifr;
>
On Tue, Dec 12, 2023 at 12:37 AM Michael S. Tsirkin wrote:
>
> On Fri, Dec 08, 2023 at 04:07:54PM +0900, David Stevens wrote:
> > If a virtio_pci_device supports native PCI power management and has the
> > No_Soft_Reset bit set, then skip resetting and reinitializing the device
> > when
On Tue, Dec 12, 2023 at 12:54 AM Michael S. Tsirkin wrote:
>
> On Mon, Dec 11, 2023 at 03:26:46PM +0800, Jason Wang wrote:
> > > Try reducing the VHOST_NET_WEIGHT limit and see if that improves things
> > > any?
> >
> > Or a dirty hack like cond_resched()
wer states like s2idle to be used in systems with stateful virtio
> devices that can't simply be re-initialized (e.g. virtio-fs).
>
> Signed-off-by: David Stevens
Acked-by: Jason Wang
Thanks
> ---
> v1 -> v2:
> - Check the No_Soft_Reset bit
>
>
On Sat, Dec 9, 2023 at 6:42 PM Michael S. Tsirkin wrote:
>
> On Fri, Dec 08, 2023 at 12:41:38PM +0100, Tobias Huschle wrote:
> > On Fri, Dec 08, 2023 at 05:31:18AM -0500, Michael S. Tsirkin wrote:
> > > On Fri, Dec 08, 2023 at 10:24:16AM +0100, Tobias Huschle wrote:
> > > > On Thu, Dec 07, 2023
On Tue, Dec 5, 2023 at 7:35 PM Yunsheng Lin wrote:
>
> introduce vhost_net_test basing on virtio_test to test
> vhost_net changing in the kernel.
>
> Signed-off-by: Yunsheng Lin
> ---
> tools/virtio/Makefile | 8 +-
> tools/virtio/vhost_net_test.c | 441
st_net_test introduced in the
> last patch.
>
> Signed-off-by: Yunsheng Lin
> ---
Acked-by: Jason Wang
Thanks
On Tue, Dec 5, 2023 at 7:35 PM Yunsheng Lin wrote:
>
> When draining a page_frag_cache, most user are doing
> the similar steps, so introduce an API to avoid code
> duplication.
>
> Signed-off-by: Yunsheng Lin
> ---
For vhost part:
Acked-by: Jason Wang
Thanks
On Thu, Nov 30, 2023 at 5:44 PM Michael S. Tsirkin wrote:
>
> On Wed, Nov 29, 2023 at 06:20:31PM +0800, Jason Wang wrote:
> > On Wed, Nov 29, 2023 at 6:12 PM Ning, Hongyu
> > wrote:
> > >
> > >
> > > On 2023/11/29 17:16, Jason Wang wrote:
> &g
flag
> >vdpa: accept VHOST_BACKEND_F_ENABLE_AFTER_DRIVER_OK backend feature
> >vdpa: add get_backend_features vdpa operation
> >vdpa_sim: offer VHOST_BACKEND_F_ENABLE_AFTER_DRIVER_OK
> >
> > Jason Wang (1):
> >virtio_v
On Wed, Nov 8, 2023 at 3:09 PM Jason Wang wrote:
>
> On Wed, Nov 8, 2023 at 2:39 PM Cindy Lu wrote:
> >
> > On Wed, Nov 8, 2023 at 11:03 AM Jason Wang wrote:
> > >
> > > On Tue, Nov 7, 2023 at 2:57 PM Cindy Lu wrote:
> > > >
> >
On Wed, Nov 8, 2023 at 2:39 PM Cindy Lu wrote:
>
> On Wed, Nov 8, 2023 at 11:03 AM Jason Wang wrote:
> >
> > On Tue, Nov 7, 2023 at 2:57 PM Cindy Lu wrote:
> > >
> > > On Mon, Nov 6, 2023 at 3:30 PM Jason Wang wrote:
> > > >
> &
On Tue, Nov 7, 2023 at 2:10 PM Cindy Lu wrote:
>
> On Mon, Nov 6, 2023 at 3:26 PM Jason Wang wrote:
> >
> > On Sat, Nov 4, 2023 at 1:18 AM Cindy Lu wrote:
> > >
> > > Expose the function iommu_device_use_default_domain() and
> > > iommu_device_
On Tue, Nov 7, 2023 at 2:57 PM Cindy Lu wrote:
>
> On Mon, Nov 6, 2023 at 3:30 PM Jason Wang wrote:
> >
> > On Sat, Nov 4, 2023 at 1:17 AM Cindy Lu wrote:
> > >
> > > VHOST_VDPA_SET_IOMMU_FD: bind the device to iommufd device
> > >
> > &g
The double `existing' is duplicated in the comment, remove one.
Signed-off-by: Jason Wang
---
drivers/nvdimm/namespace_devs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c
index dfade66bab73..c60ec0b373c5
by: Pankaj Gupta
Signed-off-by: Jason Wang
---
Changes since V2:
- Tweak the change log
Changes since v1:
- Remove some comments per Dan
---
drivers/nvdimm/virtio_pmem.c | 7 +++
1 file changed, 7 insertions(+)
diff --git a/drivers/nvdimm/virtio_pmem.c b/drivers/nvdimm/virtio_pmem.c
index 48
3/0x90
[ 92.408895] entry_SYSCALL_64_after_hwframe+0x46/0xb0
[ 92.409257] RIP: 0033:0x7f3cd76c6c44
Fixes 6e84200c0a29 ("virtio-pmem: Add virtio pmem driver")
Acked-by: Pankaj Gupta
Reviewed-by: Dan Williams
Signed-off-by: Jason Wang
---
Changes since V1:
- Add calltrace to explain the
On Mon, Jun 27, 2022 at 4:00 PM Michael S. Tsirkin wrote:
>
> On Mon, Jun 27, 2022 at 02:29:41PM +0800, Jason Wang wrote:
> > The NVDIMM region could be available before the virtio_device_ready()
> > that is called by virtio_dev_probe(). This means the driver tries to
>
ot;)
Acked-by: Pankaj Gupta
Signed-off-by: Jason Wang
---
Changes since v1:
- Remove some comments per Dan
---
drivers/nvdimm/virtio_pmem.c | 7 +++
1 file changed, 7 insertions(+)
diff --git a/drivers/nvdimm/virtio_pmem.c b/drivers/nvdimm/virtio_pmem.c
index 48f8327d0431..20da455d2ef6 100644
---
3/0x90
[ 92.408895] entry_SYSCALL_64_after_hwframe+0x46/0xb0
[ 92.409257] RIP: 0033:0x7f3cd76c6c44
Fixes 6e84200c0a29 ("virtio-pmem: Add virtio pmem driver")
Acked-by: Pankaj Gupta
Reviewed-by: Dan Williams
Signed-off-by: Jason Wang
---
Changes since V1:
- Add calltrace to explain the
Acked-by: Jason Wang
---
drivers/vdpa/ifcvf/ifcvf_base.h | 1 +
drivers/vdpa/ifcvf/ifcvf_main.c | 27 +++
2 files changed, 16 insertions(+), 12 deletions(-)
diff --git a/drivers/vdpa/ifcvf/ifcvf_base.h b/drivers/vdpa/ifcvf/ifcvf_base.h
index b2eeb16b9c2c
在 2021/4/16 下午3:16, Zhu Lingshan 写道:
get_config_size() should return the size based on the decected
device type.
Signed-off-by: Zhu Lingshan
Acked-by: Jason Wang
---
drivers/vdpa/ifcvf/ifcvf_main.c | 19 ++-
1 file changed, 18 insertions(+), 1 deletion(-)
diff
在 2021/4/16 下午3:16, Zhu Lingshan 写道:
This commit enabled Intel FPGA SmartNIC C5000X-PL virtio-block
for vDPA.
Signed-off-by: Zhu Lingshan
Acked-by: Jason Wang
---
drivers/vdpa/ifcvf/ifcvf_base.h | 8 +++-
drivers/vdpa/ifcvf/ifcvf_main.c | 19 ++-
2 files
在 2021/4/16 下午3:16, Zhu Lingshan 写道:
This commit deduces VIRTIO device ID as device type when probe,
then ifcvf_vdpa_get_device_id() can simply return the ID.
ifcvf_vdpa_get_features() and ifcvf_vdpa_get_config_size()
can work properly based on the device ID.
Signed-off-by: Zhu Lingshan
---
在 2021/4/15 下午4:12, Stefano Garzarella 写道:
On Wed, Apr 14, 2021 at 05:18:32PM +0800, Zhu Lingshan wrote:
get_config_size() should return the size based on the decected
device type.
Signed-off-by: Zhu Lingshan
---
drivers/vdpa/ifcvf/ifcvf_main.c | 11 ++-
1 file changed, 10
This patch reports the per vq doorbell location and size to vDPA
bus. Userspace can then map the doorbell via mmap() via vhost-vDPA bus
driver.
Signed-off-by: Jason Wang
---
drivers/vdpa/virtio_pci/vp_vdpa.c | 18 +-
1 file changed, 17 insertions(+), 1 deletion(-)
diff --git
Sometimes it might be useful to report the capability physical
address. One example is to report the physical address of the doorbell
in order to be mapped by userspace.
Signed-off-by: Jason Wang
---
drivers/vdpa/virtio_pci/vp_vdpa.c | 3 ++-
drivers/virtio/virtio_pci_modern.c | 2
No user now and the capability should not be setup
externally. Instead, every access to the capability should be done via
virtio_pci_modern_device.
Signed-off-by: Jason Wang
---
drivers/virtio/virtio_pci_modern_dev.c | 10 --
include/linux/virtio_pci_modern.h | 5 -
2 files
All users (both virtio-pci library and vp_vdpa driver) has been
switched to use vp_modern_map_vq_notify(). So there's no need to
export the low level helper of vp_modern_get_queue_notify_off().
Signed-off-by: Jason Wang
---
drivers/virtio/virtio_pci_modern_dev.c | 5 ++---
include/linux
This patch switches to use vp_vdpa to use vp_modern_map_notify().
Signed-off-by: Jason Wang
---
drivers/vdpa/virtio_pci/vp_vdpa.c | 9 +
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/vdpa/virtio_pci/vp_vdpa.c
b/drivers/vdpa/virtio_pci/vp_vdpa.c
index
This patch factors out the logic of vq notify area mapping. Following
patches will switch to use this common helpers for both virtio_pci
library and virtio-pci vDPA driver.
Signed-off-by: Jason Wang
---
drivers/virtio/virtio_pci_modern_dev.c | 35 ++
include/linux
This patch switch to use vp_modern_map_notify() for virtio-pci
library.
Signed-off-by: Jason Wang
---
drivers/virtio/virtio_pci_modern.c | 27 ++-
1 file changed, 2 insertions(+), 25 deletions(-)
diff --git a/drivers/virtio/virtio_pci_modern.c
b/drivers/virtio
Hi All:
This series implements the doorbell mapping support for virtio-pci
vDPA driver. Tested with page-per-vq=on in a nested guest.
Please review
Thanks
Jason Wang (7):
virtio_pci_modern: introduce helper to map vq notify area
virtio-pci library: switch to use vp_modern_map_vq_notify
在 2021/4/15 下午2:41, Zhu Lingshan 写道:
I think we've discussed this sometime in the past but what's the
reason for such whitelist consider there's already a get_features()
implemention?
E.g Any reason to block VIRTIO_BLK_F_WRITE_ZEROS or
VIRTIO_F_RING_PACKED?
Thanks
The reason is some
在 2021/4/15 下午2:36, Zhu Lingshan 写道:
On 4/15/2021 2:30 PM, Jason Wang wrote:
在 2021/4/15 下午1:52, Zhu Lingshan 写道:
On 4/15/2021 11:30 AM, Jason Wang wrote:
在 2021/4/14 下午5:18, Zhu Lingshan 写道:
This commit deduces VIRTIO device ID as device type when probe
在 2021/4/15 下午1:55, Zhu Lingshan 写道:
On 4/15/2021 11:34 AM, Jason Wang wrote:
在 2021/4/14 下午5:18, Zhu Lingshan 写道:
This commit enabled Intel FPGA SmartNIC C5000X-PL virtio-block
for vDPA.
Signed-off-by: Zhu Lingshan
---
drivers/vdpa/ifcvf/ifcvf_base.h | 17 -
drivers
在 2021/4/15 下午1:52, Zhu Lingshan 写道:
On 4/15/2021 11:30 AM, Jason Wang wrote:
在 2021/4/14 下午5:18, Zhu Lingshan 写道:
This commit deduces VIRTIO device ID as device type when probe,
then ifcvf_vdpa_get_device_id() can simply return the ID.
ifcvf_vdpa_get_features
在 2021/3/23 下午10:19, Jie Deng 写道:
Add an I2C bus driver for virtio para-virtualization.
The controller can be emulated by the backend driver in
any device model software by following the virtio protocol.
The device specification can be found on
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