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Verify that the enabled UCAPs are supported by the device before creating the ucontext. If supported, create the ucontext with the associated capabilities. Store the privileged ucontext UID on creation and remove it when destroying the privileged ucontext. This allows the command interface to recognize privileged commands through its UID. Signed-off-by: Chiara Meiohas <cmeiohas@nvidia.com> Link: https://patch.msgid.link/8b180583a207cb30deb7a2967934079749cdcc44.1741261611.git.leon@kernel.org Reviewed-by: Yishai Hadas <yishaih@nvidia.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
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/*
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* Copyright (c) 2019-2020, Mellanox Technologies inc. All rights reserved.
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*/
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#ifndef _MLX5_IB_DEVX_H
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#define _MLX5_IB_DEVX_H
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#include "mlx5_ib.h"
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#define MLX5_MAX_DESTROY_INBOX_SIZE_DW MLX5_ST_SZ_DW(delete_fte_in)
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struct devx_obj {
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struct mlx5_ib_dev *ib_dev;
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u64 obj_id;
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u32 dinlen; /* destroy inbox length */
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u32 dinbox[MLX5_MAX_DESTROY_INBOX_SIZE_DW];
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u32 flags;
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union {
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struct mlx5_ib_mkey mkey;
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struct mlx5_core_dct core_dct;
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struct mlx5_core_cq core_cq;
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u32 flow_counter_bulk_size;
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};
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struct list_head event_sub; /* holds devx_event_subscription entries */
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};
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#if IS_ENABLED(CONFIG_INFINIBAND_USER_ACCESS)
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int mlx5_ib_devx_create(struct mlx5_ib_dev *dev, bool is_user, u64 req_ucaps);
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void mlx5_ib_devx_destroy(struct mlx5_ib_dev *dev, u16 uid);
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int mlx5_ib_devx_init(struct mlx5_ib_dev *dev);
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void mlx5_ib_devx_cleanup(struct mlx5_ib_dev *dev);
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void mlx5_ib_ufile_hw_cleanup(struct ib_uverbs_file *ufile);
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#else
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static inline int mlx5_ib_devx_create(struct mlx5_ib_dev *dev, bool is_user,
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u64 req_ucaps)
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{
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return -EOPNOTSUPP;
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}
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static inline void mlx5_ib_devx_destroy(struct mlx5_ib_dev *dev, u16 uid) {}
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static inline int mlx5_ib_devx_init(struct mlx5_ib_dev *dev)
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{
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return 0;
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}
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static inline void mlx5_ib_devx_cleanup(struct mlx5_ib_dev *dev)
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{
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}
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static inline void mlx5_ib_ufile_hw_cleanup(struct ib_uverbs_file *ufile)
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{
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}
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#endif
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#endif /* _MLX5_IB_DEVX_H */
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