diff options
| author | Dragos Tatulea <dtatulea@nvidia.com> | 2023-10-18 20:14:51 +0300 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2023-11-01 16:19:57 +0300 |
| commit | 625e4b59a923d2bb30759b88ecca34d12735fa7e (patch) | |
| tree | 1247eed390a0eaa52a8261310687bb854797ec2e /drivers/vdpa/mlx5/core/mlx5_vdpa.h | |
| parent | 186e25387ed6f1403a1b464e31f5381ba4424681 (diff) | |
| download | linux-625e4b59a923d2bb30759b88ecca34d12735fa7e.tar.xz | |
vdpa/mlx5: Improve mr update flow
The current flow for updating an mr works directly on mvdev->mr which
makes it cumbersome to handle multiple new mr structs.
This patch makes the flow more straightforward by having
mlx5_vdpa_create_mr return a new mr which will update the old mr (if
any). The old mr will be deleted and unlinked from mvdev. For the case
when the iotlb is empty (not NULL), the old mr will be cleared.
This change paves the way for adding mrs for different ASIDs.
The initialized bool is no longer needed as mr is now a pointer in the
mlx5_vdpa_dev struct which will be NULL when not initialized.
Acked-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com>
Message-Id: <20231018171456.1624030-14-dtatulea@nvidia.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Si-Wei Liu <si-wei.liu@oracle.com>
Tested-by: Si-Wei Liu <si-wei.liu@oracle.com>
Tested-by: Lei Yang <leiyang@redhat.com>
Diffstat (limited to 'drivers/vdpa/mlx5/core/mlx5_vdpa.h')
| -rw-r--r-- | drivers/vdpa/mlx5/core/mlx5_vdpa.h | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/drivers/vdpa/mlx5/core/mlx5_vdpa.h b/drivers/vdpa/mlx5/core/mlx5_vdpa.h index 9c6ac42c21e1..bbe4335106bd 100644 --- a/drivers/vdpa/mlx5/core/mlx5_vdpa.h +++ b/drivers/vdpa/mlx5/core/mlx5_vdpa.h @@ -31,8 +31,6 @@ struct mlx5_vdpa_mr { struct list_head head; unsigned long num_directs; unsigned long num_klms; - /* state of dvq mr */ - bool initialized; bool user_mr; }; @@ -91,7 +89,7 @@ struct mlx5_vdpa_dev { u16 max_idx; u32 generation; - struct mlx5_vdpa_mr mr; + struct mlx5_vdpa_mr *mr; /* serialize mr access */ struct mutex mr_mtx; struct mlx5_control_vq cvq; @@ -114,14 +112,14 @@ void mlx5_vdpa_free_resources(struct mlx5_vdpa_dev *mvdev); int mlx5_vdpa_create_mkey(struct mlx5_vdpa_dev *mvdev, u32 *mkey, u32 *in, int inlen); int mlx5_vdpa_destroy_mkey(struct mlx5_vdpa_dev *mvdev, u32 mkey); -int mlx5_vdpa_handle_set_map(struct mlx5_vdpa_dev *mvdev, struct vhost_iotlb *iotlb, - bool *change_map, unsigned int asid); -int mlx5_vdpa_create_mr(struct mlx5_vdpa_dev *mvdev, - struct mlx5_vdpa_mr *mr, - struct vhost_iotlb *iotlb); +struct mlx5_vdpa_mr *mlx5_vdpa_create_mr(struct mlx5_vdpa_dev *mvdev, + struct vhost_iotlb *iotlb); void mlx5_vdpa_destroy_mr_resources(struct mlx5_vdpa_dev *mvdev); void mlx5_vdpa_destroy_mr(struct mlx5_vdpa_dev *mvdev, struct mlx5_vdpa_mr *mr); +void mlx5_vdpa_update_mr(struct mlx5_vdpa_dev *mvdev, + struct mlx5_vdpa_mr *mr, + unsigned int asid); int mlx5_vdpa_update_cvq_iotlb(struct mlx5_vdpa_dev *mvdev, struct vhost_iotlb *iotlb, unsigned int asid); |