Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
2 *
3 * Copyright (c) 2025, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
4 */
5
6#ifndef FRMR_POOLS_H
7#define FRMR_POOLS_H
8
9#include <linux/types.h>
10#include <asm/page.h>
11
12struct ib_device;
13struct ib_mr;
14
15struct ib_frmr_key {
16 u64 vendor_key;
17 /* A pool with non-zero kernel_vendor_key is a kernel-only pool. */
18 u64 kernel_vendor_key;
19 size_t num_dma_blocks;
20 int access_flags;
21 u8 ats:1;
22};
23
24struct ib_frmr_pool_ops {
25 int (*create_frmrs)(struct ib_device *device, struct ib_frmr_key *key,
26 u32 *handles, u32 count);
27 void (*destroy_frmrs)(struct ib_device *device, u32 *handles,
28 u32 count);
29 int (*build_key)(struct ib_device *device, const struct ib_frmr_key *in,
30 struct ib_frmr_key *out);
31};
32
33int ib_frmr_pools_init(struct ib_device *device,
34 const struct ib_frmr_pool_ops *pool_ops);
35void ib_frmr_pools_cleanup(struct ib_device *device);
36int ib_frmr_pool_pop(struct ib_device *device, struct ib_mr *mr);
37int ib_frmr_pool_push(struct ib_device *device, struct ib_mr *mr);
38
39#endif /* FRMR_POOLS_H */