2015-10-03 13:46:41 +00:00
|
|
|
/*
|
|
|
|
* Copyright (c) 2011-2014, Intel Corporation.
|
|
|
|
*
|
|
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
|
|
* under the terms and conditions of the GNU General Public License,
|
|
|
|
* version 2, as published by the Free Software Foundation.
|
|
|
|
*
|
|
|
|
* This program is distributed in the hope 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.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#ifndef _NVME_H
|
|
|
|
#define _NVME_H
|
|
|
|
|
|
|
|
#include <linux/nvme.h>
|
|
|
|
#include <linux/pci.h>
|
|
|
|
#include <linux/kref.h>
|
|
|
|
#include <linux/blk-mq.h>
|
2016-09-16 12:25:07 +00:00
|
|
|
#include <linux/lightnvm.h>
|
2015-10-03 13:46:41 +00:00
|
|
|
|
2015-11-26 11:58:11 +00:00
|
|
|
enum {
|
|
|
|
/*
|
|
|
|
* Driver internal status code for commands that were cancelled due
|
|
|
|
* to timeouts or controller shutdown. The value is negative so
|
|
|
|
* that it a) doesn't overlap with the unsigned hardware error codes,
|
|
|
|
* and b) can easily be tested for.
|
|
|
|
*/
|
|
|
|
NVME_SC_CANCELLED = -EINTR,
|
|
|
|
};
|
|
|
|
|
2015-10-03 13:46:41 +00:00
|
|
|
extern unsigned char nvme_io_timeout;
|
|
|
|
#define NVME_IO_TIMEOUT (nvme_io_timeout * HZ)
|
|
|
|
|
2015-11-26 08:08:36 +00:00
|
|
|
extern unsigned char admin_timeout;
|
|
|
|
#define ADMIN_TIMEOUT (admin_timeout * HZ)
|
|
|
|
|
2015-11-28 14:03:49 +00:00
|
|
|
extern unsigned char shutdown_timeout;
|
|
|
|
#define SHUTDOWN_TIMEOUT (shutdown_timeout * HZ)
|
|
|
|
|
2016-06-13 14:45:28 +00:00
|
|
|
#define NVME_DEFAULT_KATO 5
|
|
|
|
#define NVME_KATO_GRACE 10
|
|
|
|
|
2016-07-12 23:20:31 +00:00
|
|
|
extern unsigned int nvme_max_retries;
|
|
|
|
|
2015-10-29 08:57:29 +00:00
|
|
|
enum {
|
|
|
|
NVME_NS_LBA = 0,
|
|
|
|
NVME_NS_LIGHTNVM = 1,
|
|
|
|
};
|
|
|
|
|
2015-10-03 13:46:41 +00:00
|
|
|
/*
|
2015-11-26 09:07:41 +00:00
|
|
|
* List of workarounds for devices that required behavior not specified in
|
|
|
|
* the standard.
|
2015-10-03 13:46:41 +00:00
|
|
|
*/
|
2015-11-26 09:07:41 +00:00
|
|
|
enum nvme_quirks {
|
|
|
|
/*
|
|
|
|
* Prefers I/O aligned to a stripe size specified in a vendor
|
|
|
|
* specific Identify field.
|
|
|
|
*/
|
|
|
|
NVME_QUIRK_STRIPE_SIZE = (1 << 0),
|
2015-10-22 21:45:06 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* The controller doesn't handle Identify value others than 0 or 1
|
|
|
|
* correctly.
|
|
|
|
*/
|
|
|
|
NVME_QUIRK_IDENTIFY_CNS = (1 << 1),
|
2016-03-04 20:15:17 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* The controller deterministically returns O's on reads to discarded
|
|
|
|
* logical blocks.
|
|
|
|
*/
|
|
|
|
NVME_QUIRK_DISCARD_ZEROES = (1 << 2),
|
2016-06-14 21:22:41 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* The controller needs a delay before starts checking the device
|
|
|
|
* readiness, which is done by reading the NVME_CSTS_RDY bit.
|
|
|
|
*/
|
|
|
|
NVME_QUIRK_DELAY_BEFORE_CHK_RDY = (1 << 3),
|
2015-11-26 09:07:41 +00:00
|
|
|
};
|
|
|
|
|
2016-11-10 15:32:33 +00:00
|
|
|
/*
|
|
|
|
* Common request structure for NVMe passthrough. All drivers must have
|
|
|
|
* this structure as the first member of their request-private data.
|
|
|
|
*/
|
|
|
|
struct nvme_request {
|
|
|
|
struct nvme_command *cmd;
|
|
|
|
union nvme_result result;
|
|
|
|
};
|
|
|
|
|
|
|
|
static inline struct nvme_request *nvme_req(struct request *req)
|
|
|
|
{
|
|
|
|
return blk_mq_rq_to_pdu(req);
|
|
|
|
}
|
|
|
|
|
2016-06-14 21:22:41 +00:00
|
|
|
/* The below value is the specific amount of delay needed before checking
|
|
|
|
* readiness in case of the PCI_DEVICE(0x1c58, 0x0003), which needs the
|
|
|
|
* NVME_QUIRK_DELAY_BEFORE_CHK_RDY quirk enabled. The value (in ms) was
|
|
|
|
* found empirically.
|
|
|
|
*/
|
|
|
|
#define NVME_QUIRK_DELAY_AMOUNT 2000
|
|
|
|
|
2016-04-26 11:51:57 +00:00
|
|
|
enum nvme_ctrl_state {
|
|
|
|
NVME_CTRL_NEW,
|
|
|
|
NVME_CTRL_LIVE,
|
|
|
|
NVME_CTRL_RESETTING,
|
2016-07-06 12:55:49 +00:00
|
|
|
NVME_CTRL_RECONNECTING,
|
2016-04-26 11:51:57 +00:00
|
|
|
NVME_CTRL_DELETING,
|
2016-05-12 14:37:14 +00:00
|
|
|
NVME_CTRL_DEAD,
|
2016-04-26 11:51:57 +00:00
|
|
|
};
|
|
|
|
|
2015-11-26 09:06:56 +00:00
|
|
|
struct nvme_ctrl {
|
2016-04-26 11:51:57 +00:00
|
|
|
enum nvme_ctrl_state state;
|
|
|
|
spinlock_t lock;
|
2015-11-26 09:06:56 +00:00
|
|
|
const struct nvme_ctrl_ops *ops;
|
2015-10-03 13:46:41 +00:00
|
|
|
struct request_queue *admin_q;
|
2016-06-13 14:45:26 +00:00
|
|
|
struct request_queue *connect_q;
|
2015-10-03 13:46:41 +00:00
|
|
|
struct device *dev;
|
2015-11-26 09:54:19 +00:00
|
|
|
struct kref kref;
|
2015-10-03 13:46:41 +00:00
|
|
|
int instance;
|
2015-11-28 14:39:07 +00:00
|
|
|
struct blk_mq_tag_set *tagset;
|
2015-10-03 13:46:41 +00:00
|
|
|
struct list_head namespaces;
|
2015-12-24 14:27:00 +00:00
|
|
|
struct mutex namespaces_mutex;
|
2015-11-28 14:39:07 +00:00
|
|
|
struct device *device; /* char device */
|
2015-11-28 14:40:19 +00:00
|
|
|
struct list_head node;
|
2016-02-24 16:15:53 +00:00
|
|
|
struct ida ns_ida;
|
2015-11-26 09:06:56 +00:00
|
|
|
|
2015-10-03 13:46:41 +00:00
|
|
|
char name[12];
|
|
|
|
char serial[20];
|
|
|
|
char model[40];
|
|
|
|
char firmware_rev[8];
|
2016-04-16 18:57:58 +00:00
|
|
|
u16 cntlid;
|
2015-11-28 14:03:49 +00:00
|
|
|
|
|
|
|
u32 ctrl_config;
|
|
|
|
|
|
|
|
u32 page_size;
|
2015-10-03 13:46:41 +00:00
|
|
|
u32 max_hw_sectors;
|
|
|
|
u32 stripe_size;
|
|
|
|
u16 oncs;
|
2016-02-18 16:57:48 +00:00
|
|
|
u16 vid;
|
2015-11-20 08:36:44 +00:00
|
|
|
atomic_t abort_limit;
|
2015-10-03 13:46:41 +00:00
|
|
|
u8 event_limit;
|
|
|
|
u8 vwc;
|
2015-11-28 14:40:19 +00:00
|
|
|
u32 vs;
|
2016-06-13 14:45:26 +00:00
|
|
|
u32 sgls;
|
2016-06-13 14:45:28 +00:00
|
|
|
u16 kas;
|
|
|
|
unsigned int kato;
|
2015-11-28 14:40:19 +00:00
|
|
|
bool subsystem;
|
2015-11-26 09:07:41 +00:00
|
|
|
unsigned long quirks;
|
2016-04-26 11:51:59 +00:00
|
|
|
struct work_struct scan_work;
|
2016-04-26 11:52:00 +00:00
|
|
|
struct work_struct async_event_work;
|
2016-06-13 14:45:28 +00:00
|
|
|
struct delayed_work ka_work;
|
2016-06-13 14:45:26 +00:00
|
|
|
|
|
|
|
/* Fabrics only */
|
|
|
|
u16 sqsize;
|
|
|
|
u32 ioccsz;
|
|
|
|
u32 iorcsz;
|
|
|
|
u16 icdoff;
|
|
|
|
u16 maxcmd;
|
|
|
|
struct nvmf_ctrl_options *opts;
|
2015-10-03 13:46:41 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
/*
|
|
|
|
* An NVM Express namespace is equivalent to a SCSI LUN
|
|
|
|
*/
|
|
|
|
struct nvme_ns {
|
|
|
|
struct list_head list;
|
|
|
|
|
2015-11-26 09:06:56 +00:00
|
|
|
struct nvme_ctrl *ctrl;
|
2015-10-03 13:46:41 +00:00
|
|
|
struct request_queue *queue;
|
|
|
|
struct gendisk *disk;
|
2016-09-16 12:25:07 +00:00
|
|
|
struct nvm_dev *ndev;
|
2015-10-03 13:46:41 +00:00
|
|
|
struct kref kref;
|
2016-02-24 16:15:53 +00:00
|
|
|
int instance;
|
2015-10-03 13:46:41 +00:00
|
|
|
|
2015-12-22 17:10:45 +00:00
|
|
|
u8 eui[8];
|
|
|
|
u8 uuid[16];
|
|
|
|
|
2015-10-03 13:46:41 +00:00
|
|
|
unsigned ns_id;
|
|
|
|
int lba_shift;
|
|
|
|
u16 ms;
|
|
|
|
bool ext;
|
|
|
|
u8 pi_type;
|
2016-02-24 16:15:54 +00:00
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
#define NVME_NS_REMOVING 0
|
2016-02-24 16:15:56 +00:00
|
|
|
#define NVME_NS_DEAD 1
|
2016-02-24 16:15:54 +00:00
|
|
|
|
2015-10-03 13:46:41 +00:00
|
|
|
u64 mode_select_num_blocks;
|
|
|
|
u32 mode_select_block_len;
|
|
|
|
};
|
|
|
|
|
2015-11-26 09:06:56 +00:00
|
|
|
struct nvme_ctrl_ops {
|
2016-06-13 14:45:24 +00:00
|
|
|
const char *name;
|
2016-02-10 18:03:29 +00:00
|
|
|
struct module *module;
|
2016-06-13 14:45:26 +00:00
|
|
|
bool is_fabrics;
|
2015-11-26 09:06:56 +00:00
|
|
|
int (*reg_read32)(struct nvme_ctrl *ctrl, u32 off, u32 *val);
|
2015-11-28 14:03:49 +00:00
|
|
|
int (*reg_write32)(struct nvme_ctrl *ctrl, u32 off, u32 val);
|
2015-11-28 14:37:52 +00:00
|
|
|
int (*reg_read64)(struct nvme_ctrl *ctrl, u32 off, u64 *val);
|
2015-11-28 14:40:19 +00:00
|
|
|
int (*reset_ctrl)(struct nvme_ctrl *ctrl);
|
2015-11-26 09:54:19 +00:00
|
|
|
void (*free_ctrl)(struct nvme_ctrl *ctrl);
|
2016-04-26 11:52:00 +00:00
|
|
|
void (*submit_async_event)(struct nvme_ctrl *ctrl, int aer_idx);
|
2016-06-13 14:45:24 +00:00
|
|
|
int (*delete_ctrl)(struct nvme_ctrl *ctrl);
|
|
|
|
const char *(*get_subsysnqn)(struct nvme_ctrl *ctrl);
|
|
|
|
int (*get_address)(struct nvme_ctrl *ctrl, char *buf, int size);
|
2015-10-03 13:46:41 +00:00
|
|
|
};
|
|
|
|
|
2015-11-26 09:06:56 +00:00
|
|
|
static inline bool nvme_ctrl_ready(struct nvme_ctrl *ctrl)
|
|
|
|
{
|
|
|
|
u32 val = 0;
|
|
|
|
|
|
|
|
if (ctrl->ops->reg_read32(ctrl, NVME_REG_CSTS, &val))
|
|
|
|
return false;
|
|
|
|
return val & NVME_CSTS_RDY;
|
|
|
|
}
|
|
|
|
|
2015-11-28 14:40:19 +00:00
|
|
|
static inline int nvme_reset_subsystem(struct nvme_ctrl *ctrl)
|
|
|
|
{
|
|
|
|
if (!ctrl->subsystem)
|
|
|
|
return -ENOTTY;
|
|
|
|
return ctrl->ops->reg_write32(ctrl, NVME_REG_NSSR, 0x4E564D65);
|
|
|
|
}
|
|
|
|
|
2015-10-03 13:46:41 +00:00
|
|
|
static inline u64 nvme_block_nr(struct nvme_ns *ns, sector_t sector)
|
|
|
|
{
|
|
|
|
return (sector >> (ns->lba_shift - 9));
|
|
|
|
}
|
|
|
|
|
2016-03-22 07:24:43 +00:00
|
|
|
static inline unsigned nvme_map_len(struct request *rq)
|
|
|
|
{
|
2016-06-05 19:32:17 +00:00
|
|
|
if (req_op(rq) == REQ_OP_DISCARD)
|
2016-03-22 07:24:43 +00:00
|
|
|
return sizeof(struct nvme_dsm_range);
|
|
|
|
else
|
|
|
|
return blk_rq_bytes(rq);
|
|
|
|
}
|
|
|
|
|
2016-04-25 21:33:20 +00:00
|
|
|
static inline void nvme_cleanup_cmd(struct request *req)
|
|
|
|
{
|
2016-06-05 19:32:17 +00:00
|
|
|
if (req_op(req) == REQ_OP_DISCARD)
|
2016-04-25 21:33:20 +00:00
|
|
|
kfree(req->completion_data);
|
|
|
|
}
|
|
|
|
|
2015-10-16 05:58:39 +00:00
|
|
|
static inline int nvme_error_status(u16 status)
|
|
|
|
{
|
|
|
|
switch (status & 0x7ff) {
|
|
|
|
case NVME_SC_SUCCESS:
|
|
|
|
return 0;
|
|
|
|
case NVME_SC_CAP_EXCEEDED:
|
|
|
|
return -ENOSPC;
|
|
|
|
default:
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2015-11-28 14:41:58 +00:00
|
|
|
static inline bool nvme_req_needs_retry(struct request *req, u16 status)
|
|
|
|
{
|
|
|
|
return !(status & NVME_SC_DNR || blk_noretry_request(req)) &&
|
2016-07-12 23:20:31 +00:00
|
|
|
(jiffies - req->start_time) < req->timeout &&
|
|
|
|
req->retries < nvme_max_retries;
|
2015-11-28 14:41:58 +00:00
|
|
|
}
|
|
|
|
|
2016-05-18 21:05:02 +00:00
|
|
|
void nvme_cancel_request(struct request *req, void *data, bool reserved);
|
2016-04-26 11:51:57 +00:00
|
|
|
bool nvme_change_ctrl_state(struct nvme_ctrl *ctrl,
|
|
|
|
enum nvme_ctrl_state new_state);
|
2015-11-28 14:03:49 +00:00
|
|
|
int nvme_disable_ctrl(struct nvme_ctrl *ctrl, u64 cap);
|
|
|
|
int nvme_enable_ctrl(struct nvme_ctrl *ctrl, u64 cap);
|
|
|
|
int nvme_shutdown_ctrl(struct nvme_ctrl *ctrl);
|
2015-11-28 14:40:19 +00:00
|
|
|
int nvme_init_ctrl(struct nvme_ctrl *ctrl, struct device *dev,
|
|
|
|
const struct nvme_ctrl_ops *ops, unsigned long quirks);
|
2015-11-28 14:41:02 +00:00
|
|
|
void nvme_uninit_ctrl(struct nvme_ctrl *ctrl);
|
2015-11-26 09:54:19 +00:00
|
|
|
void nvme_put_ctrl(struct nvme_ctrl *ctrl);
|
2015-11-28 14:37:52 +00:00
|
|
|
int nvme_init_identify(struct nvme_ctrl *ctrl);
|
2015-11-28 14:39:07 +00:00
|
|
|
|
2016-04-26 11:51:59 +00:00
|
|
|
void nvme_queue_scan(struct nvme_ctrl *ctrl);
|
2015-11-28 14:39:07 +00:00
|
|
|
void nvme_remove_namespaces(struct nvme_ctrl *ctrl);
|
2015-11-26 09:54:19 +00:00
|
|
|
|
2016-04-26 11:52:00 +00:00
|
|
|
#define NVME_NR_AERS 1
|
2016-11-10 15:32:34 +00:00
|
|
|
void nvme_complete_async_event(struct nvme_ctrl *ctrl, __le16 status,
|
|
|
|
union nvme_result *res);
|
2016-04-26 11:52:00 +00:00
|
|
|
void nvme_queue_async_events(struct nvme_ctrl *ctrl);
|
|
|
|
|
2016-01-04 16:10:57 +00:00
|
|
|
void nvme_stop_queues(struct nvme_ctrl *ctrl);
|
|
|
|
void nvme_start_queues(struct nvme_ctrl *ctrl);
|
2016-02-24 16:15:56 +00:00
|
|
|
void nvme_kill_queues(struct nvme_ctrl *ctrl);
|
2015-12-24 14:26:59 +00:00
|
|
|
|
2016-06-13 14:45:23 +00:00
|
|
|
#define NVME_QID_ANY -1
|
2015-11-20 08:00:02 +00:00
|
|
|
struct request *nvme_alloc_request(struct request_queue *q,
|
2016-06-13 14:45:23 +00:00
|
|
|
struct nvme_command *cmd, unsigned int flags, int qid);
|
2015-11-28 14:41:58 +00:00
|
|
|
void nvme_requeue_req(struct request *req);
|
2016-04-12 19:10:14 +00:00
|
|
|
int nvme_setup_cmd(struct nvme_ns *ns, struct request *req,
|
|
|
|
struct nvme_command *cmd);
|
2015-10-03 13:46:41 +00:00
|
|
|
int nvme_submit_sync_cmd(struct request_queue *q, struct nvme_command *cmd,
|
|
|
|
void *buf, unsigned bufflen);
|
|
|
|
int __nvme_submit_sync_cmd(struct request_queue *q, struct nvme_command *cmd,
|
2016-11-10 15:32:33 +00:00
|
|
|
union nvme_result *result, void *buffer, unsigned bufflen,
|
2016-06-13 14:45:23 +00:00
|
|
|
unsigned timeout, int qid, int at_head, int flags);
|
2015-11-20 08:00:02 +00:00
|
|
|
int nvme_submit_user_cmd(struct request_queue *q, struct nvme_command *cmd,
|
|
|
|
void __user *ubuffer, unsigned bufflen, u32 *result,
|
|
|
|
unsigned timeout);
|
2015-10-23 15:47:28 +00:00
|
|
|
int __nvme_submit_user_cmd(struct request_queue *q, struct nvme_command *cmd,
|
|
|
|
void __user *ubuffer, unsigned bufflen,
|
|
|
|
void __user *meta_buffer, unsigned meta_len, u32 meta_seed,
|
2015-10-03 13:46:41 +00:00
|
|
|
u32 *result, unsigned timeout);
|
2015-11-26 09:06:56 +00:00
|
|
|
int nvme_identify_ctrl(struct nvme_ctrl *dev, struct nvme_id_ctrl **id);
|
|
|
|
int nvme_identify_ns(struct nvme_ctrl *dev, unsigned nsid,
|
2015-10-03 13:46:41 +00:00
|
|
|
struct nvme_id_ns **id);
|
2015-11-26 09:06:56 +00:00
|
|
|
int nvme_get_log_page(struct nvme_ctrl *dev, struct nvme_smart_log **log);
|
|
|
|
int nvme_get_features(struct nvme_ctrl *dev, unsigned fid, unsigned nsid,
|
2016-09-16 18:16:10 +00:00
|
|
|
void *buffer, size_t buflen, u32 *result);
|
2015-11-26 09:06:56 +00:00
|
|
|
int nvme_set_features(struct nvme_ctrl *dev, unsigned fid, unsigned dword11,
|
2016-09-16 18:16:10 +00:00
|
|
|
void *buffer, size_t buflen, u32 *result);
|
2015-11-26 10:09:06 +00:00
|
|
|
int nvme_set_queue_count(struct nvme_ctrl *ctrl, int *count);
|
2016-06-13 14:45:28 +00:00
|
|
|
void nvme_start_keep_alive(struct nvme_ctrl *ctrl);
|
|
|
|
void nvme_stop_keep_alive(struct nvme_ctrl *ctrl);
|
2015-10-03 13:46:41 +00:00
|
|
|
|
|
|
|
struct sg_io_hdr;
|
|
|
|
|
|
|
|
int nvme_sg_io(struct nvme_ns *ns, struct sg_io_hdr __user *u_hdr);
|
|
|
|
int nvme_sg_io32(struct nvme_ns *ns, unsigned long arg);
|
|
|
|
int nvme_sg_get_version_num(int __user *ip);
|
|
|
|
|
2015-11-28 15:49:22 +00:00
|
|
|
#ifdef CONFIG_NVM
|
2015-10-29 08:57:29 +00:00
|
|
|
int nvme_nvm_ns_supported(struct nvme_ns *ns, struct nvme_id_ns *id);
|
2016-09-16 12:25:08 +00:00
|
|
|
int nvme_nvm_register(struct nvme_ns *ns, char *disk_name, int node,
|
|
|
|
const struct attribute_group *attrs);
|
2016-09-16 12:25:07 +00:00
|
|
|
void nvme_nvm_unregister(struct nvme_ns *ns);
|
2016-09-16 12:25:08 +00:00
|
|
|
|
|
|
|
static inline struct nvme_ns *nvme_get_ns_from_dev(struct device *dev)
|
|
|
|
{
|
|
|
|
if (dev->type->devnode)
|
|
|
|
return dev_to_disk(dev)->private_data;
|
|
|
|
|
|
|
|
return (container_of(dev, struct nvm_dev, dev))->private_data;
|
|
|
|
}
|
2015-11-28 15:49:22 +00:00
|
|
|
#else
|
2016-09-16 12:25:07 +00:00
|
|
|
static inline int nvme_nvm_register(struct nvme_ns *ns, char *disk_name,
|
2016-09-16 12:25:08 +00:00
|
|
|
int node,
|
|
|
|
const struct attribute_group *attrs)
|
2015-11-28 15:49:22 +00:00
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2016-09-16 12:25:07 +00:00
|
|
|
static inline void nvme_nvm_unregister(struct nvme_ns *ns) {};
|
2015-11-28 15:49:22 +00:00
|
|
|
|
|
|
|
static inline int nvme_nvm_ns_supported(struct nvme_ns *ns, struct nvme_id_ns *id)
|
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
2016-09-16 12:25:08 +00:00
|
|
|
static inline struct nvme_ns *nvme_get_ns_from_dev(struct device *dev)
|
|
|
|
{
|
|
|
|
return dev_to_disk(dev)->private_data;
|
|
|
|
}
|
2015-11-28 15:49:22 +00:00
|
|
|
#endif /* CONFIG_NVM */
|
2015-10-29 08:57:29 +00:00
|
|
|
|
2015-11-28 14:39:07 +00:00
|
|
|
int __init nvme_core_init(void);
|
|
|
|
void nvme_core_exit(void);
|
|
|
|
|
2015-10-03 13:46:41 +00:00
|
|
|
#endif /* _NVME_H */
|