* [PATCH vhost 03/16] vhost-vdpa: introduce descriptor group backend feature
2023-09-28 16:45 [PATCH vhost v2 00/16] vdpa: Add support for vq descriptor mappings Dragos Tatulea
@ 2023-09-28 16:45 ` Dragos Tatulea
2023-09-28 16:45 ` [PATCH vhost 04/16] vhost-vdpa: uAPI to get dedicated descriptor group id Dragos Tatulea
` (3 subsequent siblings)
4 siblings, 0 replies; 9+ messages in thread
From: Dragos Tatulea @ 2023-09-28 16:45 UTC (permalink / raw)
To: eperezma, gal, Michael S . Tsirkin, Jason Wang
Cc: virtualization, Si-Wei Liu, kvm, netdev, linux-kernel
From: Si-Wei Liu <si-wei.liu@oracle.com>
Userspace knows if the device has dedicated descriptor group or not
by checking this feature bit.
It's only exposed if the vdpa driver backend implements the
.get_vq_desc_group() operation callback. Userspace trying to negotiate
this feature when it or the dependent _F_IOTLB_ASID feature hasn't
been exposed will result in an error.
Signed-off-by: Si-Wei Liu <si-wei.liu@oracle.com>
Acked-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
---
drivers/vhost/vdpa.c | 17 +++++++++++++++++
include/uapi/linux/vhost_types.h | 5 +++++
2 files changed, 22 insertions(+)
diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index 78379ffd2336..2f21798a37ee 100644
--- a/drivers/vhost/vdpa.c
+++ b/drivers/vhost/vdpa.c
@@ -389,6 +389,14 @@ static bool vhost_vdpa_can_resume(const struct vhost_vdpa *v)
return ops->resume;
}
+static bool vhost_vdpa_has_desc_group(const struct vhost_vdpa *v)
+{
+ struct vdpa_device *vdpa = v->vdpa;
+ const struct vdpa_config_ops *ops = vdpa->config;
+
+ return ops->get_vq_desc_group;
+}
+
static long vhost_vdpa_get_features(struct vhost_vdpa *v, u64 __user *featurep)
{
struct vdpa_device *vdpa = v->vdpa;
@@ -690,6 +698,7 @@ static long vhost_vdpa_unlocked_ioctl(struct file *filep,
if (copy_from_user(&features, featurep, sizeof(features)))
return -EFAULT;
if (features & ~(VHOST_VDPA_BACKEND_FEATURES |
+ BIT_ULL(VHOST_BACKEND_F_DESC_ASID) |
BIT_ULL(VHOST_BACKEND_F_SUSPEND) |
BIT_ULL(VHOST_BACKEND_F_RESUME) |
BIT_ULL(VHOST_BACKEND_F_ENABLE_AFTER_DRIVER_OK)))
@@ -700,6 +709,12 @@ static long vhost_vdpa_unlocked_ioctl(struct file *filep,
if ((features & BIT_ULL(VHOST_BACKEND_F_RESUME)) &&
!vhost_vdpa_can_resume(v))
return -EOPNOTSUPP;
+ if ((features & BIT_ULL(VHOST_BACKEND_F_DESC_ASID)) &&
+ !(features & BIT_ULL(VHOST_BACKEND_F_IOTLB_ASID)))
+ return -EINVAL;
+ if ((features & BIT_ULL(VHOST_BACKEND_F_DESC_ASID)) &&
+ !vhost_vdpa_has_desc_group(v))
+ return -EOPNOTSUPP;
vhost_set_backend_features(&v->vdev, features);
return 0;
}
@@ -753,6 +768,8 @@ static long vhost_vdpa_unlocked_ioctl(struct file *filep,
features |= BIT_ULL(VHOST_BACKEND_F_SUSPEND);
if (vhost_vdpa_can_resume(v))
features |= BIT_ULL(VHOST_BACKEND_F_RESUME);
+ if (vhost_vdpa_has_desc_group(v))
+ features |= BIT_ULL(VHOST_BACKEND_F_DESC_ASID);
features |= vhost_vdpa_get_backend_features(v);
if (copy_to_user(featurep, &features, sizeof(features)))
r = -EFAULT;
diff --git a/include/uapi/linux/vhost_types.h b/include/uapi/linux/vhost_types.h
index 2d827d22cd99..18ad6ae7ab5c 100644
--- a/include/uapi/linux/vhost_types.h
+++ b/include/uapi/linux/vhost_types.h
@@ -185,5 +185,10 @@ struct vhost_vdpa_iova_range {
* DRIVER_OK
*/
#define VHOST_BACKEND_F_ENABLE_AFTER_DRIVER_OK 0x6
+/* Device may expose the virtqueue's descriptor area, driver area and
+ * device area to a different group for ASID binding than where its
+ * buffers may reside. Requires VHOST_BACKEND_F_IOTLB_ASID.
+ */
+#define VHOST_BACKEND_F_DESC_ASID 0x7
#endif
--
2.41.0
^ permalink raw reply related [flat|nested] 9+ messages in thread* [PATCH vhost 04/16] vhost-vdpa: uAPI to get dedicated descriptor group id
2023-09-28 16:45 [PATCH vhost v2 00/16] vdpa: Add support for vq descriptor mappings Dragos Tatulea
2023-09-28 16:45 ` [PATCH vhost 03/16] vhost-vdpa: introduce descriptor group backend feature Dragos Tatulea
@ 2023-09-28 16:45 ` Dragos Tatulea
2023-10-02 10:16 ` [PATCH vhost v2 00/16] vdpa: Add support for vq descriptor mappings Leon Romanovsky
` (2 subsequent siblings)
4 siblings, 0 replies; 9+ messages in thread
From: Dragos Tatulea @ 2023-09-28 16:45 UTC (permalink / raw)
To: eperezma, gal, Michael S . Tsirkin, Jason Wang
Cc: virtualization, Si-Wei Liu, kvm, netdev, linux-kernel
From: Si-Wei Liu <si-wei.liu@oracle.com>
With _F_DESC_ASID backend feature, the device can now support the
VHOST_VDPA_GET_VRING_DESC_GROUP ioctl, and it may expose the descriptor
table (including avail and used ring) in a different group than the
buffers it contains. This new uAPI will fetch the group ID of the
descriptor table.
Signed-off-by: Si-Wei Liu <si-wei.liu@oracle.com>
Acked-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
---
drivers/vhost/vdpa.c | 10 ++++++++++
include/uapi/linux/vhost.h | 8 ++++++++
2 files changed, 18 insertions(+)
diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index 2f21798a37ee..851535f57b95 100644
--- a/drivers/vhost/vdpa.c
+++ b/drivers/vhost/vdpa.c
@@ -613,6 +613,16 @@ static long vhost_vdpa_vring_ioctl(struct vhost_vdpa *v, unsigned int cmd,
else if (copy_to_user(argp, &s, sizeof(s)))
return -EFAULT;
return 0;
+ case VHOST_VDPA_GET_VRING_DESC_GROUP:
+ if (!vhost_vdpa_has_desc_group(v))
+ return -EOPNOTSUPP;
+ s.index = idx;
+ s.num = ops->get_vq_desc_group(vdpa, idx);
+ if (s.num >= vdpa->ngroups)
+ return -EIO;
+ else if (copy_to_user(argp, &s, sizeof(s)))
+ return -EFAULT;
+ return 0;
case VHOST_VDPA_SET_GROUP_ASID:
if (copy_from_user(&s, argp, sizeof(s)))
return -EFAULT;
diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h
index f5c48b61ab62..649560c685f1 100644
--- a/include/uapi/linux/vhost.h
+++ b/include/uapi/linux/vhost.h
@@ -219,4 +219,12 @@
*/
#define VHOST_VDPA_RESUME _IO(VHOST_VIRTIO, 0x7E)
+/* Get the group for the descriptor table including driver & device areas
+ * of a virtqueue: read index, write group in num.
+ * The virtqueue index is stored in the index field of vhost_vring_state.
+ * The group ID of the descriptor table for this specific virtqueue
+ * is returned via num field of vhost_vring_state.
+ */
+#define VHOST_VDPA_GET_VRING_DESC_GROUP _IOWR(VHOST_VIRTIO, 0x7F, \
+ struct vhost_vring_state)
#endif
--
2.41.0
^ permalink raw reply related [flat|nested] 9+ messages in thread* Re: [PATCH vhost v2 00/16] vdpa: Add support for vq descriptor mappings
2023-09-28 16:45 [PATCH vhost v2 00/16] vdpa: Add support for vq descriptor mappings Dragos Tatulea
2023-09-28 16:45 ` [PATCH vhost 03/16] vhost-vdpa: introduce descriptor group backend feature Dragos Tatulea
2023-09-28 16:45 ` [PATCH vhost 04/16] vhost-vdpa: uAPI to get dedicated descriptor group id Dragos Tatulea
@ 2023-10-02 10:16 ` Leon Romanovsky
2023-10-02 10:16 ` (subset) " Leon Romanovsky
2023-10-05 17:31 ` Michael S. Tsirkin
4 siblings, 0 replies; 9+ messages in thread
From: Leon Romanovsky @ 2023-10-02 10:16 UTC (permalink / raw)
To: Dragos Tatulea
Cc: eperezma, gal, Michael S . Tsirkin, Jason Wang, Saeed Mahameed,
Xuan Zhuo, virtualization, netdev, linux-rdma, linux-kernel, kvm
On Thu, Sep 28, 2023 at 07:45:11PM +0300, Dragos Tatulea wrote:
> This patch series adds support for vq descriptor table mappings which
> are used to improve vdpa live migration downtime. The improvement comes
> from using smaller mappings which take less time to create and destroy
> in hw.
>
> The first part adds the vdpa core changes from Si-Wei [0].
>
> The second part adds support in mlx5_vdpa:
> - Refactor the mr code to be able to cleanly add descriptor mappings.
> - Add hardware descriptor mr support.
> - Properly update iotlb for cvq during ASID switch.
>
> Changes in v2:
>
> - The "vdpa/mlx5: Enable hw support for vq descriptor mapping" change
> was split off into two patches to avoid merge conflicts into the tree
> of Linus.
>
> The first patch contains only changes for mlx5_ifc.h. This must be
> applied into the mlx5-next tree [1] first. Once this patch is applied
> on mlx5-next, the change has to be pulled fom mlx5-next into the vhost
> tree and only then the remaining patches can be applied.
>
> [0] https://lore.kernel.org/virtualization/1694248959-13369-1-git-send-email-si-wei.liu@oracle.com
> [1] https://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux.git/log/?h=mlx5-next
>
> Dragos Tatulea (13):
> vdpa/mlx5: Expose descriptor group mkey hw capability
I prepared shared branch with this patch.
https://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux.git/log/?h=mlx5-vhost
Thanks
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: (subset) [PATCH vhost v2 00/16] vdpa: Add support for vq descriptor mappings
2023-09-28 16:45 [PATCH vhost v2 00/16] vdpa: Add support for vq descriptor mappings Dragos Tatulea
` (2 preceding siblings ...)
2023-10-02 10:16 ` [PATCH vhost v2 00/16] vdpa: Add support for vq descriptor mappings Leon Romanovsky
@ 2023-10-02 10:16 ` Leon Romanovsky
2023-10-05 17:31 ` Michael S. Tsirkin
4 siblings, 0 replies; 9+ messages in thread
From: Leon Romanovsky @ 2023-10-02 10:16 UTC (permalink / raw)
To: eperezma, gal, Michael S . Tsirkin, Jason Wang, Saeed Mahameed,
Xuan Zhuo, Dragos Tatulea
Cc: virtualization, netdev, linux-rdma, linux-kernel, kvm
On Thu, 28 Sep 2023 19:45:11 +0300, Dragos Tatulea wrote:
> This patch series adds support for vq descriptor table mappings which
> are used to improve vdpa live migration downtime. The improvement comes
> from using smaller mappings which take less time to create and destroy
> in hw.
>
> The first part adds the vdpa core changes from Si-Wei [0].
>
> [...]
Applied, thanks!
[01/16] vdpa/mlx5: Expose descriptor group mkey hw capability
https://git.kernel.org/rdma/rdma/c/d424348b060d87
Best regards,
--
Leon Romanovsky <leon@kernel.org>
^ permalink raw reply [flat|nested] 9+ messages in thread* Re: [PATCH vhost v2 00/16] vdpa: Add support for vq descriptor mappings
2023-09-28 16:45 [PATCH vhost v2 00/16] vdpa: Add support for vq descriptor mappings Dragos Tatulea
` (3 preceding siblings ...)
2023-10-02 10:16 ` (subset) " Leon Romanovsky
@ 2023-10-05 17:31 ` Michael S. Tsirkin
2023-10-05 17:44 ` Dragos Tatulea
4 siblings, 1 reply; 9+ messages in thread
From: Michael S. Tsirkin @ 2023-10-05 17:31 UTC (permalink / raw)
To: Dragos Tatulea
Cc: eperezma, gal, Jason Wang, Saeed Mahameed, Leon Romanovsky,
Xuan Zhuo, virtualization, netdev, linux-rdma, linux-kernel, kvm
On Thu, Sep 28, 2023 at 07:45:11PM +0300, Dragos Tatulea wrote:
> This patch series adds support for vq descriptor table mappings which
> are used to improve vdpa live migration downtime. The improvement comes
> from using smaller mappings which take less time to create and destroy
> in hw.
>
> The first part adds the vdpa core changes from Si-Wei [0].
>
> The second part adds support in mlx5_vdpa:
> - Refactor the mr code to be able to cleanly add descriptor mappings.
> - Add hardware descriptor mr support.
> - Properly update iotlb for cvq during ASID switch.
>
> Changes in v2:
>
> - The "vdpa/mlx5: Enable hw support for vq descriptor mapping" change
> was split off into two patches to avoid merge conflicts into the tree
> of Linus.
>
> The first patch contains only changes for mlx5_ifc.h. This must be
> applied into the mlx5-next tree [1] first. Once this patch is applied
> on mlx5-next, the change has to be pulled fom mlx5-next into the vhost
> tree and only then the remaining patches can be applied.
I get it you plan v3?
> [0] https://lore.kernel.org/virtualization/1694248959-13369-1-git-send-email-si-wei.liu@oracle.com
> [1] https://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux.git/log/?h=mlx5-next
>
> Dragos Tatulea (13):
> vdpa/mlx5: Expose descriptor group mkey hw capability
> vdpa/mlx5: Create helper function for dma mappings
> vdpa/mlx5: Decouple cvq iotlb handling from hw mapping code
> vdpa/mlx5: Take cvq iotlb lock during refresh
> vdpa/mlx5: Collapse "dvq" mr add/delete functions
> vdpa/mlx5: Rename mr destroy functions
> vdpa/mlx5: Allow creation/deletion of any given mr struct
> vdpa/mlx5: Move mr mutex out of mr struct
> vdpa/mlx5: Improve mr update flow
> vdpa/mlx5: Introduce mr for vq descriptor
> vdpa/mlx5: Enable hw support for vq descriptor mapping
> vdpa/mlx5: Make iotlb helper functions more generic
> vdpa/mlx5: Update cvq iotlb mapping on ASID change
>
> Si-Wei Liu (3):
> vdpa: introduce dedicated descriptor group for virtqueue
> vhost-vdpa: introduce descriptor group backend feature
> vhost-vdpa: uAPI to get dedicated descriptor group id
>
> drivers/vdpa/mlx5/core/mlx5_vdpa.h | 31 +++--
> drivers/vdpa/mlx5/core/mr.c | 191 ++++++++++++++++-------------
> drivers/vdpa/mlx5/core/resources.c | 6 +-
> drivers/vdpa/mlx5/net/mlx5_vnet.c | 100 ++++++++++-----
> drivers/vhost/vdpa.c | 27 ++++
> include/linux/mlx5/mlx5_ifc.h | 8 +-
> include/linux/mlx5/mlx5_ifc_vdpa.h | 7 +-
> include/linux/vdpa.h | 11 ++
> include/uapi/linux/vhost.h | 8 ++
> include/uapi/linux/vhost_types.h | 5 +
> 10 files changed, 264 insertions(+), 130 deletions(-)
>
> --
> 2.41.0
^ permalink raw reply [flat|nested] 9+ messages in thread* Re: [PATCH vhost v2 00/16] vdpa: Add support for vq descriptor mappings
2023-10-05 17:31 ` Michael S. Tsirkin
@ 2023-10-05 17:44 ` Dragos Tatulea
2023-10-05 19:18 ` Michael S. Tsirkin
0 siblings, 1 reply; 9+ messages in thread
From: Dragos Tatulea @ 2023-10-05 17:44 UTC (permalink / raw)
To: mst@redhat.com
Cc: linux-rdma@vger.kernel.org, xuanzhuo@linux.alibaba.com,
virtualization@lists.linux-foundation.org, Gal Pressman,
eperezma@redhat.com, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org, jasowang@redhat.com, leon@kernel.org,
Saeed Mahameed, kvm@vger.kernel.org
On Thu, 2023-10-05 at 13:31 -0400, Michael S. Tsirkin wrote:
> On Thu, Sep 28, 2023 at 07:45:11PM +0300, Dragos Tatulea wrote:
> > This patch series adds support for vq descriptor table mappings which
> > are used to improve vdpa live migration downtime. The improvement comes
> > from using smaller mappings which take less time to create and destroy
> > in hw.
> >
> > The first part adds the vdpa core changes from Si-Wei [0].
> >
> > The second part adds support in mlx5_vdpa:
> > - Refactor the mr code to be able to cleanly add descriptor mappings.
> > - Add hardware descriptor mr support.
> > - Properly update iotlb for cvq during ASID switch.
> >
> > Changes in v2:
> >
> > - The "vdpa/mlx5: Enable hw support for vq descriptor mapping" change
> > was split off into two patches to avoid merge conflicts into the tree
> > of Linus.
> >
> > The first patch contains only changes for mlx5_ifc.h. This must be
> > applied into the mlx5-next tree [1] first. Once this patch is applied
> > on mlx5-next, the change has to be pulled fom mlx5-next into the vhost
> > tree and only then the remaining patches can be applied.
>
>
> I get it you plan v3?
There are some very small improvements (commit message in 13/16 and fix in
16/16) that could make a v3. The latter can be addressed as a separate patch
when moving dup_iotlb to vhost/iotlb. What do you think?
>
> > [0]
> > https://lore.kernel.org/virtualization/1694248959-13369-1-git-send-email-si-wei.liu@oracle.com
> > [1]
> > https://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux.git/log/?h=mlx5-next
> >
> > Dragos Tatulea (13):
> > vdpa/mlx5: Expose descriptor group mkey hw capability
> > vdpa/mlx5: Create helper function for dma mappings
> > vdpa/mlx5: Decouple cvq iotlb handling from hw mapping code
> > vdpa/mlx5: Take cvq iotlb lock during refresh
> > vdpa/mlx5: Collapse "dvq" mr add/delete functions
> > vdpa/mlx5: Rename mr destroy functions
> > vdpa/mlx5: Allow creation/deletion of any given mr struct
> > vdpa/mlx5: Move mr mutex out of mr struct
> > vdpa/mlx5: Improve mr update flow
> > vdpa/mlx5: Introduce mr for vq descriptor
> > vdpa/mlx5: Enable hw support for vq descriptor mapping
> > vdpa/mlx5: Make iotlb helper functions more generic
> > vdpa/mlx5: Update cvq iotlb mapping on ASID change
> >
> > Si-Wei Liu (3):
> > vdpa: introduce dedicated descriptor group for virtqueue
> > vhost-vdpa: introduce descriptor group backend feature
> > vhost-vdpa: uAPI to get dedicated descriptor group id
> >
> > drivers/vdpa/mlx5/core/mlx5_vdpa.h | 31 +++--
> > drivers/vdpa/mlx5/core/mr.c | 191 ++++++++++++++++-------------
> > drivers/vdpa/mlx5/core/resources.c | 6 +-
> > drivers/vdpa/mlx5/net/mlx5_vnet.c | 100 ++++++++++-----
> > drivers/vhost/vdpa.c | 27 ++++
> > include/linux/mlx5/mlx5_ifc.h | 8 +-
> > include/linux/mlx5/mlx5_ifc_vdpa.h | 7 +-
> > include/linux/vdpa.h | 11 ++
> > include/uapi/linux/vhost.h | 8 ++
> > include/uapi/linux/vhost_types.h | 5 +
> > 10 files changed, 264 insertions(+), 130 deletions(-)
> >
> > --
> > 2.41.0
>
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH vhost v2 00/16] vdpa: Add support for vq descriptor mappings
2023-10-05 17:44 ` Dragos Tatulea
@ 2023-10-05 19:18 ` Michael S. Tsirkin
0 siblings, 0 replies; 9+ messages in thread
From: Michael S. Tsirkin @ 2023-10-05 19:18 UTC (permalink / raw)
To: Dragos Tatulea
Cc: linux-rdma@vger.kernel.org, xuanzhuo@linux.alibaba.com,
virtualization@lists.linux-foundation.org, Gal Pressman,
eperezma@redhat.com, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org, jasowang@redhat.com, leon@kernel.org,
Saeed Mahameed, kvm@vger.kernel.org
On Thu, Oct 05, 2023 at 05:44:01PM +0000, Dragos Tatulea wrote:
> On Thu, 2023-10-05 at 13:31 -0400, Michael S. Tsirkin wrote:
> > On Thu, Sep 28, 2023 at 07:45:11PM +0300, Dragos Tatulea wrote:
> > > This patch series adds support for vq descriptor table mappings which
> > > are used to improve vdpa live migration downtime. The improvement comes
> > > from using smaller mappings which take less time to create and destroy
> > > in hw.
> > >
> > > The first part adds the vdpa core changes from Si-Wei [0].
> > >
> > > The second part adds support in mlx5_vdpa:
> > > - Refactor the mr code to be able to cleanly add descriptor mappings.
> > > - Add hardware descriptor mr support.
> > > - Properly update iotlb for cvq during ASID switch.
> > >
> > > Changes in v2:
> > >
> > > - The "vdpa/mlx5: Enable hw support for vq descriptor mapping" change
> > > was split off into two patches to avoid merge conflicts into the tree
> > > of Linus.
> > >
> > > The first patch contains only changes for mlx5_ifc.h. This must be
> > > applied into the mlx5-next tree [1] first. Once this patch is applied
> > > on mlx5-next, the change has to be pulled fom mlx5-next into the vhost
> > > tree and only then the remaining patches can be applied.
> >
> >
> > I get it you plan v3?
> There are some very small improvements (commit message in 13/16 and fix in
> 16/16) that could make a v3. The latter can be addressed as a separate patch
> when moving dup_iotlb to vhost/iotlb. What do you think?
if there's a fix by all means post v3.
> >
> > > [0]
> > > https://lore.kernel.org/virtualization/1694248959-13369-1-git-send-email-si-wei.liu@oracle.com
> > > [1]
> > > https://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux.git/log/?h=mlx5-next
> > >
> > > Dragos Tatulea (13):
> > > vdpa/mlx5: Expose descriptor group mkey hw capability
> > > vdpa/mlx5: Create helper function for dma mappings
> > > vdpa/mlx5: Decouple cvq iotlb handling from hw mapping code
> > > vdpa/mlx5: Take cvq iotlb lock during refresh
> > > vdpa/mlx5: Collapse "dvq" mr add/delete functions
> > > vdpa/mlx5: Rename mr destroy functions
> > > vdpa/mlx5: Allow creation/deletion of any given mr struct
> > > vdpa/mlx5: Move mr mutex out of mr struct
> > > vdpa/mlx5: Improve mr update flow
> > > vdpa/mlx5: Introduce mr for vq descriptor
> > > vdpa/mlx5: Enable hw support for vq descriptor mapping
> > > vdpa/mlx5: Make iotlb helper functions more generic
> > > vdpa/mlx5: Update cvq iotlb mapping on ASID change
> > >
> > > Si-Wei Liu (3):
> > > vdpa: introduce dedicated descriptor group for virtqueue
> > > vhost-vdpa: introduce descriptor group backend feature
> > > vhost-vdpa: uAPI to get dedicated descriptor group id
> > >
> > > drivers/vdpa/mlx5/core/mlx5_vdpa.h | 31 +++--
> > > drivers/vdpa/mlx5/core/mr.c | 191 ++++++++++++++++-------------
> > > drivers/vdpa/mlx5/core/resources.c | 6 +-
> > > drivers/vdpa/mlx5/net/mlx5_vnet.c | 100 ++++++++++-----
> > > drivers/vhost/vdpa.c | 27 ++++
> > > include/linux/mlx5/mlx5_ifc.h | 8 +-
> > > include/linux/mlx5/mlx5_ifc_vdpa.h | 7 +-
> > > include/linux/vdpa.h | 11 ++
> > > include/uapi/linux/vhost.h | 8 ++
> > > include/uapi/linux/vhost_types.h | 5 +
> > > 10 files changed, 264 insertions(+), 130 deletions(-)
> > >
> > > --
> > > 2.41.0
> >
>
^ permalink raw reply [flat|nested] 9+ messages in thread