mirror of https://github.com/torvalds/linux.git
40 lines
1.1 KiB
C
40 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
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*
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* Copyright (c) 2025, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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*/
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#ifndef FRMR_POOLS_H
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#define FRMR_POOLS_H
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#include <linux/types.h>
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#include <asm/page.h>
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struct ib_device;
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struct ib_mr;
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struct ib_frmr_key {
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u64 vendor_key;
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/* A pool with non-zero kernel_vendor_key is a kernel-only pool. */
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u64 kernel_vendor_key;
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size_t num_dma_blocks;
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int access_flags;
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u8 ats:1;
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};
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struct ib_frmr_pool_ops {
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int (*create_frmrs)(struct ib_device *device, struct ib_frmr_key *key,
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u32 *handles, u32 count);
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void (*destroy_frmrs)(struct ib_device *device, u32 *handles,
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u32 count);
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int (*build_key)(struct ib_device *device, const struct ib_frmr_key *in,
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struct ib_frmr_key *out);
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};
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int ib_frmr_pools_init(struct ib_device *device,
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const struct ib_frmr_pool_ops *pool_ops);
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void ib_frmr_pools_cleanup(struct ib_device *device);
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int ib_frmr_pool_pop(struct ib_device *device, struct ib_mr *mr);
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int ib_frmr_pool_push(struct ib_device *device, struct ib_mr *mr);
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#endif /* FRMR_POOLS_H */
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