diff options
| author | Eli Cohen <elic@nvidia.com> | 2021-06-03 11:11:53 +0300 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2021-07-08 07:49:01 -0400 |
| commit | b57c46cb3c3bca46e1f0b258493572d234362de8 (patch) | |
| tree | ee538c603f56d5e7e825d29d2a2f902bbed3d879 /drivers/vdpa/mlx5/core/mlx5_vdpa.h | |
| parent | a7766ef18b33674fa164e2e2916cef16d4e17f43 (diff) | |
| download | lwn-b57c46cb3c3bca46e1f0b258493572d234362de8.tar.gz lwn-b57c46cb3c3bca46e1f0b258493572d234362de8.zip | |
vdpa/mlx5: Add support for doorbell bypassing
Implement mlx5_get_vq_notification() to return the doorbell address.
Since the notification area is mapped to userspace, make sure that the
BAR size is at least PAGE_SIZE large.
Signed-off-by: Eli Cohen <elic@nvidia.com>
Link: https://lore.kernel.org/r/20210603081153.5750-1-elic@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'drivers/vdpa/mlx5/core/mlx5_vdpa.h')
| -rw-r--r-- | drivers/vdpa/mlx5/core/mlx5_vdpa.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/vdpa/mlx5/core/mlx5_vdpa.h b/drivers/vdpa/mlx5/core/mlx5_vdpa.h index 09a16a3d1b2a..0002b2136b48 100644 --- a/drivers/vdpa/mlx5/core/mlx5_vdpa.h +++ b/drivers/vdpa/mlx5/core/mlx5_vdpa.h @@ -42,6 +42,7 @@ struct mlx5_vdpa_resources { u32 pdn; struct mlx5_uars_page *uar; void __iomem *kick_addr; + u64 phys_kick_addr; u16 uid; u32 null_mkey; bool valid; |