251 lines
6.6 KiB
C
251 lines
6.6 KiB
C
/*
|
|
* Copyright (c) 2014-2016, Intel Corporation.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU Lesser General Public License,
|
|
* version 2.1, 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 Lesser General Public License for
|
|
* more details.
|
|
*/
|
|
#ifndef __NDCTL_H__
|
|
#define __NDCTL_H__
|
|
|
|
#include <linux/types.h>
|
|
|
|
struct nd_cmd_dimm_flags {
|
|
__u32 status;
|
|
__u32 flags;
|
|
} __attribute__((packed));
|
|
|
|
struct nd_cmd_get_config_size {
|
|
__u32 status;
|
|
__u32 config_size;
|
|
__u32 max_xfer;
|
|
} __attribute__((packed));
|
|
|
|
struct nd_cmd_get_config_data_hdr {
|
|
__u32 in_offset;
|
|
__u32 in_length;
|
|
__u32 status;
|
|
__u8 out_buf[0];
|
|
} __attribute__((packed));
|
|
|
|
struct nd_cmd_set_config_hdr {
|
|
__u32 in_offset;
|
|
__u32 in_length;
|
|
__u8 in_buf[0];
|
|
} __attribute__((packed));
|
|
|
|
struct nd_cmd_vendor_hdr {
|
|
__u32 opcode;
|
|
__u32 in_length;
|
|
__u8 in_buf[0];
|
|
} __attribute__((packed));
|
|
|
|
struct nd_cmd_vendor_tail {
|
|
__u32 status;
|
|
__u32 out_length;
|
|
__u8 out_buf[0];
|
|
} __attribute__((packed));
|
|
|
|
struct nd_cmd_ars_cap {
|
|
__u64 address;
|
|
__u64 length;
|
|
__u32 status;
|
|
__u32 max_ars_out;
|
|
__u32 clear_err_unit;
|
|
__u16 flags;
|
|
__u16 reserved;
|
|
} __attribute__((packed));
|
|
|
|
struct nd_cmd_ars_start {
|
|
__u64 address;
|
|
__u64 length;
|
|
__u16 type;
|
|
__u8 flags;
|
|
__u8 reserved[5];
|
|
__u32 status;
|
|
__u32 scrub_time;
|
|
} __attribute__((packed));
|
|
|
|
struct nd_cmd_ars_status {
|
|
__u32 status;
|
|
__u32 out_length;
|
|
__u64 address;
|
|
__u64 length;
|
|
__u64 restart_address;
|
|
__u64 restart_length;
|
|
__u16 type;
|
|
__u16 flags;
|
|
__u32 num_records;
|
|
struct nd_ars_record {
|
|
__u32 handle;
|
|
__u32 reserved;
|
|
__u64 err_address;
|
|
__u64 length;
|
|
} __attribute__((packed)) records[0];
|
|
} __attribute__((packed));
|
|
|
|
struct nd_cmd_clear_error {
|
|
__u64 address;
|
|
__u64 length;
|
|
__u32 status;
|
|
__u8 reserved[4];
|
|
__u64 cleared;
|
|
} __attribute__((packed));
|
|
|
|
enum {
|
|
ND_CMD_IMPLEMENTED = 0,
|
|
|
|
/* bus commands */
|
|
ND_CMD_ARS_CAP = 1,
|
|
ND_CMD_ARS_START = 2,
|
|
ND_CMD_ARS_STATUS = 3,
|
|
ND_CMD_CLEAR_ERROR = 4,
|
|
|
|
/* per-dimm commands */
|
|
ND_CMD_SMART = 1,
|
|
ND_CMD_SMART_THRESHOLD = 2,
|
|
ND_CMD_DIMM_FLAGS = 3,
|
|
ND_CMD_GET_CONFIG_SIZE = 4,
|
|
ND_CMD_GET_CONFIG_DATA = 5,
|
|
ND_CMD_SET_CONFIG_DATA = 6,
|
|
ND_CMD_VENDOR_EFFECT_LOG_SIZE = 7,
|
|
ND_CMD_VENDOR_EFFECT_LOG = 8,
|
|
ND_CMD_VENDOR = 9,
|
|
ND_CMD_CALL = 10,
|
|
};
|
|
|
|
enum {
|
|
ND_ARS_VOLATILE = 1,
|
|
ND_ARS_PERSISTENT = 2,
|
|
ND_ARS_RETURN_PREV_DATA = 1 << 1,
|
|
ND_CONFIG_LOCKED = 1,
|
|
};
|
|
|
|
static __inline__ const char *nvdimm_bus_cmd_name(unsigned cmd)
|
|
{
|
|
switch (cmd) {
|
|
case ND_CMD_ARS_CAP: return "ars_cap";
|
|
case ND_CMD_ARS_START: return "ars_start";
|
|
case ND_CMD_ARS_STATUS: return "ars_status";
|
|
case ND_CMD_CLEAR_ERROR: return "clear_error";
|
|
case ND_CMD_CALL: return "cmd_call";
|
|
default: return "unknown";
|
|
}
|
|
}
|
|
|
|
static __inline__ const char *nvdimm_cmd_name(unsigned cmd)
|
|
{
|
|
switch (cmd) {
|
|
case ND_CMD_SMART: return "smart";
|
|
case ND_CMD_SMART_THRESHOLD: return "smart_thresh";
|
|
case ND_CMD_DIMM_FLAGS: return "flags";
|
|
case ND_CMD_GET_CONFIG_SIZE: return "get_size";
|
|
case ND_CMD_GET_CONFIG_DATA: return "get_data";
|
|
case ND_CMD_SET_CONFIG_DATA: return "set_data";
|
|
case ND_CMD_VENDOR_EFFECT_LOG_SIZE: return "effect_size";
|
|
case ND_CMD_VENDOR_EFFECT_LOG: return "effect_log";
|
|
case ND_CMD_VENDOR: return "vendor";
|
|
case ND_CMD_CALL: return "cmd_call";
|
|
default: return "unknown";
|
|
}
|
|
}
|
|
|
|
#define ND_IOCTL 'N'
|
|
|
|
#define ND_IOCTL_DIMM_FLAGS _IOWR(ND_IOCTL, ND_CMD_DIMM_FLAGS,\
|
|
struct nd_cmd_dimm_flags)
|
|
|
|
#define ND_IOCTL_GET_CONFIG_SIZE _IOWR(ND_IOCTL, ND_CMD_GET_CONFIG_SIZE,\
|
|
struct nd_cmd_get_config_size)
|
|
|
|
#define ND_IOCTL_GET_CONFIG_DATA _IOWR(ND_IOCTL, ND_CMD_GET_CONFIG_DATA,\
|
|
struct nd_cmd_get_config_data_hdr)
|
|
|
|
#define ND_IOCTL_SET_CONFIG_DATA _IOWR(ND_IOCTL, ND_CMD_SET_CONFIG_DATA,\
|
|
struct nd_cmd_set_config_hdr)
|
|
|
|
#define ND_IOCTL_VENDOR _IOWR(ND_IOCTL, ND_CMD_VENDOR,\
|
|
struct nd_cmd_vendor_hdr)
|
|
|
|
#define ND_IOCTL_ARS_CAP _IOWR(ND_IOCTL, ND_CMD_ARS_CAP,\
|
|
struct nd_cmd_ars_cap)
|
|
|
|
#define ND_IOCTL_ARS_START _IOWR(ND_IOCTL, ND_CMD_ARS_START,\
|
|
struct nd_cmd_ars_start)
|
|
|
|
#define ND_IOCTL_ARS_STATUS _IOWR(ND_IOCTL, ND_CMD_ARS_STATUS,\
|
|
struct nd_cmd_ars_status)
|
|
|
|
#define ND_IOCTL_CLEAR_ERROR _IOWR(ND_IOCTL, ND_CMD_CLEAR_ERROR,\
|
|
struct nd_cmd_clear_error)
|
|
|
|
#define ND_DEVICE_DIMM 1 /* nd_dimm: container for "config data" */
|
|
#define ND_DEVICE_REGION_PMEM 2 /* nd_region: (parent of PMEM namespaces) */
|
|
#define ND_DEVICE_REGION_BLK 3 /* nd_region: (parent of BLK namespaces) */
|
|
#define ND_DEVICE_NAMESPACE_IO 4 /* legacy persistent memory */
|
|
#define ND_DEVICE_NAMESPACE_PMEM 5 /* PMEM namespace (may alias with BLK) */
|
|
#define ND_DEVICE_NAMESPACE_BLK 6 /* BLK namespace (may alias with PMEM) */
|
|
#define ND_DEVICE_DAX_PMEM 7 /* Device DAX interface to pmem */
|
|
|
|
enum nd_driver_flags {
|
|
ND_DRIVER_DIMM = 1 << ND_DEVICE_DIMM,
|
|
ND_DRIVER_REGION_PMEM = 1 << ND_DEVICE_REGION_PMEM,
|
|
ND_DRIVER_REGION_BLK = 1 << ND_DEVICE_REGION_BLK,
|
|
ND_DRIVER_NAMESPACE_IO = 1 << ND_DEVICE_NAMESPACE_IO,
|
|
ND_DRIVER_NAMESPACE_PMEM = 1 << ND_DEVICE_NAMESPACE_PMEM,
|
|
ND_DRIVER_NAMESPACE_BLK = 1 << ND_DEVICE_NAMESPACE_BLK,
|
|
ND_DRIVER_DAX_PMEM = 1 << ND_DEVICE_DAX_PMEM,
|
|
};
|
|
|
|
enum ars_masks {
|
|
ARS_STATUS_MASK = 0x0000FFFF,
|
|
ARS_EXT_STATUS_SHIFT = 16,
|
|
};
|
|
|
|
/*
|
|
* struct nd_cmd_pkg
|
|
*
|
|
* is a wrapper to a quasi pass thru interface for invoking firmware
|
|
* associated with nvdimms.
|
|
*
|
|
* INPUT PARAMETERS
|
|
*
|
|
* nd_family corresponds to the firmware (e.g. DSM) interface.
|
|
*
|
|
* nd_command are the function index advertised by the firmware.
|
|
*
|
|
* nd_size_in is the size of the input parameters being passed to firmware
|
|
*
|
|
* OUTPUT PARAMETERS
|
|
*
|
|
* nd_fw_size is the size of the data firmware wants to return for
|
|
* the call. If nd_fw_size is greater than size of nd_size_out, only
|
|
* the first nd_size_out bytes are returned.
|
|
*/
|
|
|
|
struct nd_cmd_pkg {
|
|
__u64 nd_family; /* family of commands */
|
|
__u64 nd_command;
|
|
__u32 nd_size_in; /* INPUT: size of input args */
|
|
__u32 nd_size_out; /* INPUT: size of payload */
|
|
__u32 nd_reserved2[9]; /* reserved must be zero */
|
|
__u32 nd_fw_size; /* OUTPUT: size fw wants to return */
|
|
unsigned char nd_payload[]; /* Contents of call */
|
|
};
|
|
|
|
/* These NVDIMM families represent pre-standardization command sets */
|
|
#define NVDIMM_FAMILY_INTEL 0
|
|
#define NVDIMM_FAMILY_HPE1 1
|
|
#define NVDIMM_FAMILY_HPE2 2
|
|
#define NVDIMM_FAMILY_MSFT 3
|
|
|
|
#define ND_IOCTL_CALL _IOWR(ND_IOCTL, ND_CMD_CALL,\
|
|
struct nd_cmd_pkg)
|
|
|
|
#endif /* __NDCTL_H__ */
|