/*-
 * Copyright (c) 2024, Netflix Inc.
 * Written by Warner Losh
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

/*
 * Linux compatible NVME ioctls. So far we just support ID, ADMIN_CMD and
 * IO_CMD. The rest are not supported.
 */


#include <sys/ioccom.h>
#include <sys/_types.h>

struct nvme_passthru_cmd {
        __uint8_t       opcode;
        __uint8_t       flags;
        __uint16_t      rsvd1;
        __uint32_t      nsid;
        __uint32_t      cdw2;
        __uint32_t      cdw3;
        __uint64_t      metadata;
        __uint64_t      addr;
        __uint32_t      metadata_len;
        __uint32_t      data_len;
        __uint32_t      cdw10;
        __uint32_t      cdw11;
        __uint32_t      cdw12;
        __uint32_t      cdw13;
        __uint32_t      cdw14;
        __uint32_t      cdw15;
        __uint32_t      timeout_ms;
        __uint32_t      result;
};

#define nvme_admin_cmd nvme_passthru_cmd

/*
 * Linux nvme ioctls, commented out ones are not supported
 */
#define NVME_IOCTL_ID           _IO('N', 0x40)
#define NVME_IOCTL_ADMIN_CMD    _IOWR('N', 0x41, struct nvme_admin_cmd)
/* #define NVME_IOCTL_SUBMIT_IO _IOW('N', 0x42, struct nvme_user_io) */
#define NVME_IOCTL_IO_CMD       _IOWR('N', 0x43, struct nvme_passthru_cmd)
#define NVME_IOCTL_RESET        _IO('N', 0x44)
/* #define NVME_IOCTL_SUBSYS_RESET      _IO('N', 0x45) */
/* #define NVME_IOCTL_RESCAN    _IO('N', 0x46) */
/* #define NVME_IOCTL_ADMIN64_CMD       _IOWR('N', 0x47, struct nvme_passthru_cmd64) */
/* #define NVME_IOCTL_IO64_CMD  _IOWR('N', 0x48, struct nvme_passthru_cmd64) */
/* #define NVME_IOCTL_IO64_CMD_VEC      _IOWR('N', 0x49, struct nvme_passthru_cmd64) */

/* io_uring async commands: */
/* #define NVME_URING_CMD_IO    _IOWR('N', 0x80, struct nvme_uring_cmd) */
/* #define NVME_URING_CMD_IO_VEC        _IOWR('N', 0x81, struct nvme_uring_cmd) */
/* #define NVME_URING_CMD_ADMIN _IOWR('N', 0x82, struct nvme_uring_cmd) */
/* #define NVME_URING_CMD_ADMIN_VEC _IOWR('N', 0x83, struct nvme_uring_cmd) */