diff options
| author | Eli Cohen <eli@mellanox.com> | 2020-08-04 19:20:48 +0300 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2020-08-05 19:00:24 -0400 |
| commit | 1a86b377aa2147a7c866b03142e848c18e5f3cb8 (patch) | |
| tree | 767f8283cba470842ab220a496573c18f0c7c294 /drivers/vdpa/mlx5/net/mlx5_vnet.h | |
| parent | 94abbccdf2916cb03f9626f2d36c6e9971490c12 (diff) | |
vdpa/mlx5: Add VDPA driver for supported mlx5 devices
Add a front end VDPA driver that registers in the VDPA bus and provides
networking to a guest. The VDPA driver creates the necessary resources
on the VF it is driving such that data path will be offloaded.
Notifications are being communicated through the driver.
Currently, only VFs are supported. In subsequent patches we will have
devlink support to control which VF is used for VDPA and which function
is used for regular networking.
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Eli Cohen <eli@mellanox.com>
Link: https://lore.kernel.org/r/20200804162048.22587-13-eli@mellanox.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'drivers/vdpa/mlx5/net/mlx5_vnet.h')
| -rw-r--r-- | drivers/vdpa/mlx5/net/mlx5_vnet.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.h b/drivers/vdpa/mlx5/net/mlx5_vnet.h new file mode 100644 index 000000000000..f2d6d68b020e --- /dev/null +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.h @@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ +/* Copyright (c) 2020 Mellanox Technologies Ltd. */ + +#ifndef __MLX5_VNET_H_ +#define __MLX5_VNET_H_ + +#include <linux/vdpa.h> +#include <linux/virtio_net.h> +#include <linux/vringh.h> +#include <linux/mlx5/driver.h> +#include <linux/mlx5/cq.h> +#include <linux/mlx5/qp.h> +#include "mlx5_vdpa.h" + +static inline u32 mlx5_vdpa_max_qps(int max_vqs) +{ + return max_vqs / 2; +} + +#define to_mlx5_vdpa_ndev(__mvdev) container_of(__mvdev, struct mlx5_vdpa_net, mvdev) +void *mlx5_vdpa_add_dev(struct mlx5_core_dev *mdev); +void mlx5_vdpa_remove_dev(struct mlx5_vdpa_dev *mvdev); + +#endif /* __MLX5_VNET_H_ */ |