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6 Commits

Author SHA1 Message Date
Parav Pandit
418eddef05 vdpa: Use simpler version of ida allocation 
vdpa doesn't have any specific need to define start and end range of the
device index.
Hence use the simper version of the ida allocator.

Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Eli Cohen <elic@nvidia.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20201112064005.349268-3-parav@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 2020-12-18 16:14:31 -05:00
Max Gurtovoy
a9974489b6 vdpa: remove hard coded virtq num 
This will enable vdpa providers to add support for multi queue feature
and publish it to upper layers (vhost and virtio).

Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20200804162048.22587-7-eli@mellanox.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 2020-08-05 18:39:18 -04:00
Michael S. Tsirkin
452639a64a vdpa: make sure set_features is invoked for legacy 
Some legacy guests just assume features are 0 after reset.
We detect that config space is accessed before features are
set and set features to 0 automatically.
Note: some legacy guests might not even access config space, if this is
reported in the field we might need to catch a kick to handle these.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 2020-08-05 11:08:40 -04:00
Jason Wang
24eae8ebfb vdpa: fix typos in the comments for __vdpa_alloc_device() 
Fix two typos in the comments for __vdpa_alloc_device().

Signed-off-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20200527060528.9100-1-jasowang@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 2020-06-22 12:34:21 -04:00
Jason Wang
ac8b85f9ef vdpa: fix comment of vdpa_register_device() 
The function should be called only after a success calling for
vdpa_alloc_device().

Reported-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20200413093738.28467-1-jasowang@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 2020-04-17 06:05:30 -04:00
Michael S. Tsirkin
c9b9f5f8c0 vdpa: move to drivers/vdpa 
We have both vhost and virtio drivers that depend on vdpa.
It's easier to locate it at a top level directory otherwise
we run into issues e.g. if vhost is built-in but virtio
is modular.  Let's just move it up a level.

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 2020-04-02 10:41:40 -04:00