mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-13 01:36:55 +07:00
4d88a97aa9
* Implement the device-model infrastructure for loading modules and
attaching drivers to nvdimm devices. This is a simple association of a
nd-device-type number with a driver that has a bitmask of supported
device types. To facilitate userspace bind/unbind operations 'modalias'
and 'devtype', that also appear in the uevent, are added as generic
sysfs attributes for all nvdimm devices. The reason for the device-type
number is to support sub-types within a given parent devtype, be it a
vendor-specific sub-type or otherwise.
* The first consumer of this infrastructure is the driver
for dimm devices. It simply uses control messages to retrieve and
store the configuration-data image (label set) from each dimm.
Note: nd_device_register() arranges for asynchronous registration of
nvdimm bus devices by default.
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Neil Brown <neilb@suse.de>
Acked-by: Christoph Hellwig <hch@lst.de>
Tested-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
37 lines
1.0 KiB
C
37 lines
1.0 KiB
C
/*
|
|
* Copyright(c) 2013-2015 Intel Corporation. All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of version 2 of the GNU General Public License 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.
|
|
*/
|
|
#ifndef __ND_H__
|
|
#define __ND_H__
|
|
#include <linux/device.h>
|
|
#include <linux/mutex.h>
|
|
#include <linux/ndctl.h>
|
|
|
|
struct nvdimm_drvdata {
|
|
struct device *dev;
|
|
struct nd_cmd_get_config_size nsarea;
|
|
void *data;
|
|
};
|
|
|
|
enum nd_async_mode {
|
|
ND_SYNC,
|
|
ND_ASYNC,
|
|
};
|
|
|
|
void nd_device_register(struct device *dev);
|
|
void nd_device_unregister(struct device *dev, enum nd_async_mode mode);
|
|
int __init nvdimm_init(void);
|
|
void nvdimm_exit(void);
|
|
int nvdimm_init_nsarea(struct nvdimm_drvdata *ndd);
|
|
int nvdimm_init_config_data(struct nvdimm_drvdata *ndd);
|
|
#endif /* __ND_H__ */
|