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| author | Xie Yongji <xieyongji@bytedance.com> | 2021-08-31 18:36:31 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2021-09-06 07:20:57 -0400 |
| commit | d8945ec411209272bcd4ae9e75ea1b078257e492 (patch) | |
| tree | ddee9fc4da7335ccdf380c4799b380207d47007f /drivers/vdpa/mlx5 | |
| parent | 22af48cf91aae5f2fd32fe811d9be1c52d7a801b (diff) | |
| download | linux-d8945ec411209272bcd4ae9e75ea1b078257e492.tar.gz | |
vdpa: Support transferring virtual addressing during DMA mapping
This patch introduces an attribute for vDPA device to indicate whether virtual address can be used. If vDPA device driver set it, vhost-vdpa bus driver will not pin user page and transfer userspace virtual address instead of physical address during DMA mapping. And corresponding vma->vm_file and offset will be also passed as an opaque pointer. Suggested-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Xie Yongji <xieyongji@bytedance.com> Acked-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20210831103634.33-11-xieyongji@bytedance.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/vdpa/mlx5')
| -rw-r--r-- | drivers/vdpa/mlx5/net/mlx5_vnet.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c index 608f6b900cd9..08f39952fa6a 100644 --- a/drivers/vdpa/mlx5/net/mlx5_vnet.c +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c @@ -2425,7 +2425,7 @@ static int mlx5_vdpa_dev_add(struct vdpa_mgmt_dev *v_mdev, const char *name) max_vqs = min_t(u32, max_vqs, MLX5_MAX_SUPPORTED_VQS); ndev = vdpa_alloc_device(struct mlx5_vdpa_net, mvdev.vdev, mdev->device, &mlx5_vdpa_ops, - name); + name, false); if (IS_ERR(ndev)) return PTR_ERR(ndev); |