diff options
| author | Yishai Hadas <yishaih@nvidia.com> | 2022-05-10 12:02:06 +0300 |
|---|---|---|
| committer | Leon Romanovsky <leonro@nvidia.com> | 2022-05-11 09:33:40 +0300 |
| commit | 85c205db605b2067dec5c72ff7efbbad899a608e (patch) | |
| tree | d0b3e876ab9514e5cd0783385f1eda9b7da9f1b1 /drivers/vfio/pci/mlx5/cmd.h | |
| parent | 8580ad14f9396b03c4b9645b4cf0dd0085664562 (diff) | |
| download | linux-85c205db605b2067dec5c72ff7efbbad899a608e.tar.bz2 | |
vfio/mlx5: Run the SAVE state command in an async mode
Use the PF asynchronous command mode for the SAVE state command.
This enables returning earlier to user space upon issuing successfully
the command and improve latency by let things run in parallel.
Link: https://lore.kernel.org/r/20220510090206.90374-5-yishaih@nvidia.com
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Diffstat (limited to 'drivers/vfio/pci/mlx5/cmd.h')
| -rw-r--r-- | drivers/vfio/pci/mlx5/cmd.h | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/drivers/vfio/pci/mlx5/cmd.h b/drivers/vfio/pci/mlx5/cmd.h index 94928055c005..6c3112fdd8b1 100644 --- a/drivers/vfio/pci/mlx5/cmd.h +++ b/drivers/vfio/pci/mlx5/cmd.h @@ -10,10 +10,20 @@ #include <linux/vfio_pci_core.h> #include <linux/mlx5/driver.h> +struct mlx5vf_async_data { + struct mlx5_async_work cb_work; + struct work_struct work; + int status; + u32 pdn; + u32 mkey; + void *out; +}; + struct mlx5_vf_migration_file { struct file *filp; struct mutex lock; - bool disabled; + u8 disabled:1; + u8 is_err:1; struct sg_append_table table; size_t total_length; @@ -23,6 +33,10 @@ struct mlx5_vf_migration_file { struct scatterlist *last_offset_sg; unsigned int sg_last_entry; unsigned long last_offset; + struct mlx5vf_pci_core_device *mvdev; + wait_queue_head_t poll_wait; + struct mlx5_async_ctx async_ctx; + struct mlx5vf_async_data async_data; }; struct mlx5vf_pci_core_device { @@ -39,6 +53,7 @@ struct mlx5vf_pci_core_device { spinlock_t reset_lock; struct mlx5_vf_migration_file *resuming_migf; struct mlx5_vf_migration_file *saving_migf; + struct workqueue_struct *cb_wq; struct notifier_block nb; struct mlx5_core_dev *mdev; }; @@ -54,4 +69,6 @@ int mlx5vf_cmd_save_vhca_state(struct mlx5vf_pci_core_device *mvdev, int mlx5vf_cmd_load_vhca_state(struct mlx5vf_pci_core_device *mvdev, struct mlx5_vf_migration_file *migf); 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); #endif /* MLX5_VFIO_CMD_H */ |