diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mlx5/data_direct.h | 47 | ||||
| -rw-r--r-- | include/linux/mlx5/driver.h | 8 |
2 files changed, 55 insertions, 0 deletions
diff --git a/include/linux/mlx5/data_direct.h b/include/linux/mlx5/data_direct.h new file mode 100644 index 000000000000..4cff5ff5489d --- /dev/null +++ b/include/linux/mlx5/data_direct.h @@ -0,0 +1,47 @@ +/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ +/* + * Copyright (c) 2026, NVIDIA CORPORATION & AFFILIATES. All rights reserved + */ + +#ifndef _MLX5_DATA_DIRECT_H +#define _MLX5_DATA_DIRECT_H + +#include <linux/compiler.h> +#include <linux/list.h> + +struct device; +struct mlx5_core_dev; +struct notifier_block; +struct pci_dev; + +enum mlx5_data_direct_event { + MLX5_DATA_DIRECT_UNBIND, +}; + +struct mlx5_data_direct_dev { + struct device *device; + struct pci_dev *pdev; + char *vuid; + struct list_head list; +}; + +struct mlx5_data_direct { + struct mlx5_data_direct_dev *dev; + u32 pdn; + u32 mkey; + u32 mkey_ro; + u8 mkey_ro_valid :1; +}; + +static inline struct mlx5_data_direct_dev * +mlx5_data_direct_get_dev(struct mlx5_data_direct *dd) +{ + return dd ? READ_ONCE(dd->dev) : NULL; +} + +int mlx5_data_direct_register(struct mlx5_core_dev *mdev, + struct notifier_block *nb); +void mlx5_data_direct_unregister(struct mlx5_core_dev *mdev, + struct notifier_block *nb); + +#endif diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h index 83d0a83bbfbc..abb99371ff13 100644 --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -707,6 +707,7 @@ struct mlx5_rsvd_gids { struct mlx5_clock; struct mlx5_clock_dev_state; +struct mlx5_data_direct; struct mlx5_dm; struct mlx5_fw_tracer; struct mlx5_vxlan; @@ -801,6 +802,7 @@ struct mlx5_core_dev { /* sync write combining state */ struct mutex wc_state_lock; struct devlink *shd; + struct mlx5_data_direct *data_direct; }; struct mlx5_db { @@ -1395,4 +1397,10 @@ static inline struct net *mlx5_core_net(struct mlx5_core_dev *dev) #define MLX5_SW_IMAGE_GUID_MAX_BYTES 9 +static inline bool mlx5_data_direct_supported(struct mlx5_core_dev *mdev) +{ + return MLX5_CAP_GEN(mdev, data_direct) && + MLX5_CAP_GEN_2(mdev, query_vuid); +} + #endif /* MLX5_DRIVER_H */ |