diff options
| author | Eli Cohen <eli@mellanox.com> | 2020-08-04 19:20:46 +0300 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2020-08-05 19:00:23 -0400 |
| commit | 29064bfdabd5ef49eac6909d3a36a075e3b52255 (patch) | |
| tree | 17f7c28f81f610df1d522d444bbc62662b023757 /drivers/vdpa/mlx5/core/mlx5_vdpa.h | |
| parent | 89349be659d63767cf79e23767da84408a33cd73 (diff) | |
vdpa/mlx5: Add support library for mlx5 VDPA implementation
Following patches introduce VDPA network driver for Mellanox Connectx6
devices. This patch provides functionality that will be used by those
patches.
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Eli Cohen <eli@mellanox.com>
Link: https://lore.kernel.org/r/20200804162048.22587-11-eli@mellanox.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/vdpa/mlx5/core/mlx5_vdpa.h')
| -rw-r--r-- | drivers/vdpa/mlx5/core/mlx5_vdpa.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/drivers/vdpa/mlx5/core/mlx5_vdpa.h b/drivers/vdpa/mlx5/core/mlx5_vdpa.h new file mode 100644 index 000000000000..f3571c8b257e --- /dev/null +++ b/drivers/vdpa/mlx5/core/mlx5_vdpa.h @@ -0,0 +1,57 @@ +/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ +/* Copyright (c) 2020 Mellanox Technologies Ltd. */ + +#ifndef __MLX5_VDPA_H__ +#define __MLX5_VDPA_H__ + +#include <linux/vdpa.h> +#include <linux/mlx5/driver.h> + +struct mlx5_vdpa_resources { + u32 pdn; + struct mlx5_uars_page *uar; + void __iomem *kick_addr; + u16 uid; + u32 null_mkey; + bool valid; +}; + +struct mlx5_vdpa_dev { + struct vdpa_device vdev; + struct mlx5_core_dev *mdev; + struct mlx5_vdpa_resources res; + + u64 mlx_features; + u64 actual_features; + u8 status; + u32 max_vqs; + u32 generation; +}; + +int mlx5_vdpa_alloc_pd(struct mlx5_vdpa_dev *dev, u32 *pdn, u16 uid); +int mlx5_vdpa_dealloc_pd(struct mlx5_vdpa_dev *dev, u32 pdn, u16 uid); +int mlx5_vdpa_get_null_mkey(struct mlx5_vdpa_dev *dev, u32 *null_mkey); +int mlx5_vdpa_create_tis(struct mlx5_vdpa_dev *mvdev, void *in, u32 *tisn); +void mlx5_vdpa_destroy_tis(struct mlx5_vdpa_dev *mvdev, u32 tisn); +int mlx5_vdpa_create_rqt(struct mlx5_vdpa_dev *mvdev, void *in, int inlen, u32 *rqtn); +void mlx5_vdpa_destroy_rqt(struct mlx5_vdpa_dev *mvdev, u32 rqtn); +int mlx5_vdpa_create_tir(struct mlx5_vdpa_dev *mvdev, void *in, u32 *tirn); +void mlx5_vdpa_destroy_tir(struct mlx5_vdpa_dev *mvdev, u32 tirn); +int mlx5_vdpa_alloc_transport_domain(struct mlx5_vdpa_dev *mvdev, u32 *tdn); +void mlx5_vdpa_dealloc_transport_domain(struct mlx5_vdpa_dev *mvdev, u32 tdn); +int mlx5_vdpa_alloc_resources(struct mlx5_vdpa_dev *mvdev); +void mlx5_vdpa_free_resources(struct mlx5_vdpa_dev *mvdev); + +#define mlx5_vdpa_warn(__dev, format, ...) \ + dev_warn((__dev)->mdev->device, "%s:%d:(pid %d) warning: " format, __func__, __LINE__, \ + current->pid, ##__VA_ARGS__) + +#define mlx5_vdpa_info(__dev, format, ...) \ + dev_info((__dev)->mdev->device, "%s:%d:(pid %d): " format, __func__, __LINE__, \ + current->pid, ##__VA_ARGS__) + +#define mlx5_vdpa_dbg(__dev, format, ...) \ + dev_debug((__dev)->mdev->device, "%s:%d:(pid %d): " format, __func__, __LINE__, \ + current->pid, ##__VA_ARGS__) + +#endif /* __MLX5_VDPA_H__ */ |