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e2be04c7f9
Many user space API headers have licensing information, which is either
incomplete, badly formatted or just a shorthand for referring to the
license under which the file is supposed to be. This makes it hard for
compliance tools to determine the correct license.
Update these files with an SPDX license identifier. The identifier was
chosen based on the license information in the file.
GPL/LGPL licensed headers get the matching GPL/LGPL SPDX license
identifier with the added 'WITH Linux-syscall-note' exception, which is
the officially assigned exception identifier for the kernel syscall
exception:
NOTE! This copyright does *not* cover user programs that use kernel
services by normal system calls - this is merely considered normal use
of the kernel, and does *not* fall under the heading of "derived work".
This exception makes it possible to include GPL headers into non GPL
code, without confusing license compliance tools.
Headers which have either explicit dual licensing or are just licensed
under a non GPL license are updated with the corresponding SPDX
identifier and the GPLv2 with syscall exception identifier. The format
is:
((GPL-2.0 WITH Linux-syscall-note) OR SPDX-ID-OF-OTHER-LICENSE)
SPDX license identifiers are a legally binding shorthand, which can be
used instead of the full boiler plate text. The update does not remove
existing license information as this has to be done on a case by case
basis and the copyright holders might have to be consulted. This will
happen in a separate step.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne. See the previous patch in this series for the
methodology of how this patch was researched.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
216 lines
4.9 KiB
C
216 lines
4.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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* Copyright (C) 2015 CNEX Labs. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License version
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* 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139,
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* USA.
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*/
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#ifndef _UAPI_LINUX_LIGHTNVM_H
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#define _UAPI_LINUX_LIGHTNVM_H
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#ifdef __KERNEL__
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#include <linux/kernel.h>
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#include <linux/ioctl.h>
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#else /* __KERNEL__ */
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#include <stdio.h>
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#include <sys/ioctl.h>
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#define DISK_NAME_LEN 32
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#endif /* __KERNEL__ */
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#include <linux/types.h>
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#include <linux/ioctl.h>
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#define NVM_TTYPE_NAME_MAX 48
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#define NVM_TTYPE_MAX 63
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#define NVM_MMTYPE_LEN 8
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#define NVM_CTRL_FILE "/dev/lightnvm/control"
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struct nvm_ioctl_info_tgt {
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__u32 version[3];
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__u32 reserved;
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char tgtname[NVM_TTYPE_NAME_MAX];
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};
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struct nvm_ioctl_info {
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__u32 version[3]; /* in/out - major, minor, patch */
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__u16 tgtsize; /* number of targets */
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__u16 reserved16; /* pad to 4K page */
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__u32 reserved[12];
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struct nvm_ioctl_info_tgt tgts[NVM_TTYPE_MAX];
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};
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enum {
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NVM_DEVICE_ACTIVE = 1 << 0,
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};
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struct nvm_ioctl_device_info {
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char devname[DISK_NAME_LEN];
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char bmname[NVM_TTYPE_NAME_MAX];
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__u32 bmversion[3];
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__u32 flags;
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__u32 reserved[8];
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};
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struct nvm_ioctl_get_devices {
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__u32 nr_devices;
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__u32 reserved[31];
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struct nvm_ioctl_device_info info[31];
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};
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struct nvm_ioctl_create_simple {
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__u32 lun_begin;
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__u32 lun_end;
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};
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enum {
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NVM_CONFIG_TYPE_SIMPLE = 0,
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};
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struct nvm_ioctl_create_conf {
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__u32 type;
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union {
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struct nvm_ioctl_create_simple s;
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};
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};
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enum {
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NVM_TARGET_FACTORY = 1 << 0, /* Init target in factory mode */
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};
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struct nvm_ioctl_create {
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char dev[DISK_NAME_LEN]; /* open-channel SSD device */
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char tgttype[NVM_TTYPE_NAME_MAX]; /* target type name */
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char tgtname[DISK_NAME_LEN]; /* dev to expose target as */
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__u32 flags;
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struct nvm_ioctl_create_conf conf;
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};
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struct nvm_ioctl_remove {
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char tgtname[DISK_NAME_LEN];
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__u32 flags;
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};
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struct nvm_ioctl_dev_init {
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char dev[DISK_NAME_LEN]; /* open-channel SSD device */
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char mmtype[NVM_MMTYPE_LEN]; /* register to media manager */
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__u32 flags;
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};
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enum {
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NVM_FACTORY_ERASE_ONLY_USER = 1 << 0, /* erase only blocks used as
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* host blks or grown blks */
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NVM_FACTORY_RESET_HOST_BLKS = 1 << 1, /* remove host blk marks */
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NVM_FACTORY_RESET_GRWN_BBLKS = 1 << 2, /* remove grown blk marks */
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NVM_FACTORY_NR_BITS = 1 << 3, /* stops here */
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};
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struct nvm_ioctl_dev_factory {
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char dev[DISK_NAME_LEN];
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__u32 flags;
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};
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struct nvm_user_vio {
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__u8 opcode;
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__u8 flags;
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__u16 control;
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__u16 nppas;
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__u16 rsvd;
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__u64 metadata;
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__u64 addr;
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__u64 ppa_list;
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__u32 metadata_len;
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__u32 data_len;
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__u64 status;
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__u32 result;
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__u32 rsvd3[3];
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};
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struct nvm_passthru_vio {
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__u8 opcode;
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__u8 flags;
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__u8 rsvd[2];
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__u32 nsid;
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__u32 cdw2;
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__u32 cdw3;
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__u64 metadata;
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__u64 addr;
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__u32 metadata_len;
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__u32 data_len;
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__u64 ppa_list;
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__u16 nppas;
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__u16 control;
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__u32 cdw13;
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__u32 cdw14;
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__u32 cdw15;
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__u64 status;
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__u32 result;
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__u32 timeout_ms;
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};
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/* The ioctl type, 'L', 0x20 - 0x2F documented in ioctl-number.txt */
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enum {
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/* top level cmds */
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NVM_INFO_CMD = 0x20,
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NVM_GET_DEVICES_CMD,
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/* device level cmds */
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NVM_DEV_CREATE_CMD,
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NVM_DEV_REMOVE_CMD,
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/* Init a device to support LightNVM media managers */
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NVM_DEV_INIT_CMD,
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/* Factory reset device */
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NVM_DEV_FACTORY_CMD,
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/* Vector user I/O */
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NVM_DEV_VIO_ADMIN_CMD = 0x41,
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NVM_DEV_VIO_CMD = 0x42,
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NVM_DEV_VIO_USER_CMD = 0x43,
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};
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#define NVM_IOCTL 'L' /* 0x4c */
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#define NVM_INFO _IOWR(NVM_IOCTL, NVM_INFO_CMD, \
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struct nvm_ioctl_info)
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#define NVM_GET_DEVICES _IOR(NVM_IOCTL, NVM_GET_DEVICES_CMD, \
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struct nvm_ioctl_get_devices)
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#define NVM_DEV_CREATE _IOW(NVM_IOCTL, NVM_DEV_CREATE_CMD, \
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struct nvm_ioctl_create)
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#define NVM_DEV_REMOVE _IOW(NVM_IOCTL, NVM_DEV_REMOVE_CMD, \
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struct nvm_ioctl_remove)
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#define NVM_DEV_INIT _IOW(NVM_IOCTL, NVM_DEV_INIT_CMD, \
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struct nvm_ioctl_dev_init)
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#define NVM_DEV_FACTORY _IOW(NVM_IOCTL, NVM_DEV_FACTORY_CMD, \
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struct nvm_ioctl_dev_factory)
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#define NVME_NVM_IOCTL_IO_VIO _IOWR(NVM_IOCTL, NVM_DEV_VIO_USER_CMD, \
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struct nvm_passthru_vio)
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#define NVME_NVM_IOCTL_ADMIN_VIO _IOWR(NVM_IOCTL, NVM_DEV_VIO_ADMIN_CMD,\
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struct nvm_passthru_vio)
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#define NVME_NVM_IOCTL_SUBMIT_VIO _IOWR(NVM_IOCTL, NVM_DEV_VIO_CMD,\
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struct nvm_user_vio)
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#define NVM_VERSION_MAJOR 1
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#define NVM_VERSION_MINOR 0
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#define NVM_VERSION_PATCHLEVEL 0
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#endif
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