From b4b7ff4b08e691656c9d77c758fc355833128ac0 Mon Sep 17 00:00:00 2001
From: André Fabian Silva Delgado <emulatorman@parabola.nu>
Date: Wed, 20 Jan 2016 14:01:31 -0300
Subject: Linux-libre 4.4-gnu

---
 include/uapi/linux/lightnvm.h | 130 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 130 insertions(+)
 create mode 100644 include/uapi/linux/lightnvm.h

(limited to 'include/uapi/linux/lightnvm.h')

diff --git a/include/uapi/linux/lightnvm.h b/include/uapi/linux/lightnvm.h
new file mode 100644
index 000000000..928f98997
--- /dev/null
+++ b/include/uapi/linux/lightnvm.h
@@ -0,0 +1,130 @@
+/*
+ * Copyright (C) 2015 CNEX Labs.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139,
+ * USA.
+ */
+
+#ifndef _UAPI_LINUX_LIGHTNVM_H
+#define _UAPI_LINUX_LIGHTNVM_H
+
+#ifdef __KERNEL__
+#include <linux/kernel.h>
+#include <linux/ioctl.h>
+#else /* __KERNEL__ */
+#include <stdio.h>
+#include <sys/ioctl.h>
+#define DISK_NAME_LEN 32
+#endif /* __KERNEL__ */
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+
+#define NVM_TTYPE_NAME_MAX 48
+#define NVM_TTYPE_MAX 63
+
+#define NVM_CTRL_FILE "/dev/lightnvm/control"
+
+struct nvm_ioctl_info_tgt {
+	__u32 version[3];
+	__u32 reserved;
+	char tgtname[NVM_TTYPE_NAME_MAX];
+};
+
+struct nvm_ioctl_info {
+	__u32 version[3];	/* in/out - major, minor, patch */
+	__u16 tgtsize;		/* number of targets */
+	__u16 reserved16;	/* pad to 4K page */
+	__u32 reserved[12];
+	struct nvm_ioctl_info_tgt tgts[NVM_TTYPE_MAX];
+};
+
+enum {
+	NVM_DEVICE_ACTIVE = 1 << 0,
+};
+
+struct nvm_ioctl_device_info {
+	char devname[DISK_NAME_LEN];
+	char bmname[NVM_TTYPE_NAME_MAX];
+	__u32 bmversion[3];
+	__u32 flags;
+	__u32 reserved[8];
+};
+
+struct nvm_ioctl_get_devices {
+	__u32 nr_devices;
+	__u32 reserved[31];
+	struct nvm_ioctl_device_info info[31];
+};
+
+struct nvm_ioctl_create_simple {
+	__u32 lun_begin;
+	__u32 lun_end;
+};
+
+enum {
+	NVM_CONFIG_TYPE_SIMPLE = 0,
+};
+
+struct nvm_ioctl_create_conf {
+	__u32 type;
+	union {
+		struct nvm_ioctl_create_simple s;
+	};
+};
+
+struct nvm_ioctl_create {
+	char dev[DISK_NAME_LEN];		/* open-channel SSD device */
+	char tgttype[NVM_TTYPE_NAME_MAX];	/* target type name */
+	char tgtname[DISK_NAME_LEN];		/* dev to expose target as */
+
+	__u32 flags;
+
+	struct nvm_ioctl_create_conf conf;
+};
+
+struct nvm_ioctl_remove {
+	char tgtname[DISK_NAME_LEN];
+
+	__u32 flags;
+};
+
+
+/* The ioctl type, 'L', 0x20 - 0x2F documented in ioctl-number.txt */
+enum {
+	/* top level cmds */
+	NVM_INFO_CMD = 0x20,
+	NVM_GET_DEVICES_CMD,
+
+	/* device level cmds */
+	NVM_DEV_CREATE_CMD,
+	NVM_DEV_REMOVE_CMD,
+};
+
+#define NVM_IOCTL 'L' /* 0x4c */
+
+#define NVM_INFO		_IOWR(NVM_IOCTL, NVM_INFO_CMD, \
+						struct nvm_ioctl_info)
+#define NVM_GET_DEVICES		_IOR(NVM_IOCTL, NVM_GET_DEVICES_CMD, \
+						struct nvm_ioctl_get_devices)
+#define NVM_DEV_CREATE		_IOW(NVM_IOCTL, NVM_DEV_CREATE_CMD, \
+						struct nvm_ioctl_create)
+#define NVM_DEV_REMOVE		_IOW(NVM_IOCTL, NVM_DEV_REMOVE_CMD, \
+						struct nvm_ioctl_remove)
+
+#define NVM_VERSION_MAJOR	1
+#define NVM_VERSION_MINOR	0
+#define NVM_VERSION_PATCHLEVEL	0
+
+#endif
-- 
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