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 14:49:01 +0300 |
| commit | b57c46cb3c3bca46e1f0b258493572d234362de8 (patch) | |
| tree | ee538c603f56d5e7e825d29d2a2f902bbed3d879 /drivers/vdpa/mlx5/core/resources.c | |
| parent | a7766ef18b33674fa164e2e2916cef16d4e17f43 (diff) | |
| download | linux-b57c46cb3c3bca46e1f0b258493572d234362de8.tar.xz | |
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/resources.c')
| -rw-r--r-- | drivers/vdpa/mlx5/core/resources.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/vdpa/mlx5/core/resources.c b/drivers/vdpa/mlx5/core/resources.c index 836ab9ef0fa6..d4606213f88a 100644 --- a/drivers/vdpa/mlx5/core/resources.c +++ b/drivers/vdpa/mlx5/core/resources.c @@ -253,6 +253,7 @@ int mlx5_vdpa_alloc_resources(struct mlx5_vdpa_dev *mvdev) goto err_key; kick_addr = mdev->bar_addr + offset; + res->phys_kick_addr = kick_addr; res->kick_addr = ioremap(kick_addr, PAGE_SIZE); if (!res->kick_addr) { |