diff options
| author | Yishai Hadas <yishaih@nvidia.com> | 2023-09-11 12:38:54 +0300 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2023-09-28 22:07:29 +0300 |
| commit | 67135f29451ef9dc56ff0415705d667267c4d9d2 (patch) | |
| tree | 74be134082dd41add9a1c829d81db54247842507 /drivers/vfio/pci/mlx5/cmd.h | |
| parent | 5798e4dd584f23bb5a4db4c524522c4dd8a84a78 (diff) | |
| download | linux-67135f29451ef9dc56ff0415705d667267c4d9d2.tar.xz | |
vfio/mlx5: Add support for SAVING in chunk mode
Add support for SAVING in chunk mode, it includes running a work
that will fill the next chunk from the device.
In case the number of available chunks will reach the MAX_NUM_CHUNKS,
the next chunk SAVING will be delayed till the reader will consume one
chunk.
The next patch from the series will add the reader part of the chunk
mode.
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20230911093856.81910-8-yishaih@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'drivers/vfio/pci/mlx5/cmd.h')
| -rw-r--r-- | drivers/vfio/pci/mlx5/cmd.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/vfio/pci/mlx5/cmd.h b/drivers/vfio/pci/mlx5/cmd.h index 6d8d52804c83..f2c7227fa683 100644 --- a/drivers/vfio/pci/mlx5/cmd.h +++ b/drivers/vfio/pci/mlx5/cmd.h @@ -83,6 +83,13 @@ struct mlx5vf_async_data { void *out; }; +struct mlx5vf_save_work_data { + struct mlx5_vf_migration_file *migf; + size_t next_required_umem_size; + struct work_struct work; + u8 chunk_num; +}; + #define MAX_NUM_CHUNKS 2 struct mlx5_vf_migration_file { @@ -97,9 +104,12 @@ struct mlx5_vf_migration_file { u32 record_tag; u64 stop_copy_prep_size; u64 pre_copy_initial_bytes; + size_t next_required_umem_size; + u8 num_ready_chunks; /* Upon chunk mode preserve another set of buffers for stop_copy phase */ struct mlx5_vhca_data_buffer *buf[MAX_NUM_CHUNKS]; struct mlx5_vhca_data_buffer *buf_header[MAX_NUM_CHUNKS]; + struct mlx5vf_save_work_data save_data[MAX_NUM_CHUNKS]; spinlock_t list_lock; struct list_head buf_list; struct list_head avail_list; @@ -223,6 +233,8 @@ struct page *mlx5vf_get_migration_page(struct mlx5_vhca_data_buffer *buf, void mlx5vf_state_mutex_unlock(struct mlx5vf_pci_core_device *mvdev); void mlx5vf_disable_fds(struct mlx5vf_pci_core_device *mvdev); void mlx5vf_mig_file_cleanup_cb(struct work_struct *_work); +void mlx5vf_mig_file_set_save_work(struct mlx5_vf_migration_file *migf, + u8 chunk_num, size_t next_required_umem_size); int mlx5vf_start_page_tracker(struct vfio_device *vdev, struct rb_root_cached *ranges, u32 nnodes, u64 *page_size); int mlx5vf_stop_page_tracker(struct vfio_device *vdev); |