/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/* Copyright (C) 2018-2025, Advanced Micro Devices, Inc */

#ifndef IONIC_ABI_H
#define IONIC_ABI_H

#include <linux/types.h>

#define IONIC_ABI_VERSION       1

#define IONIC_EXPDB_64          1
#define IONIC_EXPDB_128         2
#define IONIC_EXPDB_256         4
#define IONIC_EXPDB_512         8

#define IONIC_EXPDB_SQ          1
#define IONIC_EXPDB_RQ          2

#define IONIC_CMB_ENABLE        1
#define IONIC_CMB_REQUIRE       2
#define IONIC_CMB_EXPDB         4
#define IONIC_CMB_WC            8
#define IONIC_CMB_UC            16

struct ionic_ctx_req {
        __u32 rsvd[2];
};

struct ionic_ctx_resp {
        __u32 rsvd;
        __u32 page_shift;

        __aligned_u64 dbell_offset;

        __u16 version;
        __u8 qp_opcodes;
        __u8 admin_opcodes;

        __u8 sq_qtype;
        __u8 rq_qtype;
        __u8 cq_qtype;
        __u8 admin_qtype;

        __u8 max_stride;
        __u8 max_spec;
        __u8 udma_count;
        __u8 expdb_mask;
        __u8 expdb_qtypes;

        __u8 rsvd2[3];
};

struct ionic_qdesc {
        __aligned_u64 addr;
        __u32 size;
        __u16 mask;
        __u8 depth_log2;
        __u8 stride_log2;
};

struct ionic_ah_resp {
        __u32 ahid;
        __u32 pad;
};

struct ionic_cq_req {
        struct ionic_qdesc cq[2];
        __u8 udma_mask;
        __u8 rsvd[7];
};

struct ionic_cq_resp {
        __u32 cqid[2];
        __u8 udma_mask;
        __u8 rsvd[7];
};

struct ionic_qp_req {
        struct ionic_qdesc sq;
        struct ionic_qdesc rq;
        __u8 sq_spec;
        __u8 rq_spec;
        __u8 sq_cmb;
        __u8 rq_cmb;
        __u8 udma_mask;
        __u8 rsvd[3];
};

struct ionic_qp_resp {
        __u32 qpid;
        __u8 sq_cmb;
        __u8 rq_cmb;
        __u8 udma_idx;
        __u8 rsvd[1];
        __aligned_u64 sq_cmb_offset;
        __aligned_u64 rq_cmb_offset;
};

struct ionic_srq_req {
        struct ionic_qdesc rq;
        __u8 rq_spec;
        __u8 rq_cmb;
        __u8 udma_mask;
        __u8 rsvd[5];
};

struct ionic_srq_resp {
        __u32 qpid;
        __u8 rq_cmb;
        __u8 udma_idx;
        __u8 rsvd[2];
        __aligned_u64 rq_cmb_offset;
};

#endif /* IONIC_ABI_H */