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