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/*
* Definitions for the NVM Express interface
* 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 _UAPI_LINUX_NVME_H
#define _UAPI_LINUX_NVME_H
#include <linux/types.h>
struct nvme_id_power_state {
__le16 max_power; /* centiwatts */
__u8 rsvd2;
__u8 flags;
__le32 entry_lat; /* microseconds */
__le32 exit_lat; /* microseconds */
__u8 read_tput;
__u8 read_lat;
__u8 write_tput;
__u8 write_lat;
__le16 idle_power;
__u8 idle_scale;
__u8 rsvd19;
__le16 active_power;
__u8 active_work_scale;
__u8 rsvd23[9];
};
enum {
NVME_PS_FLAGS_MAX_POWER_SCALE = 1 << 0,
NVME_PS_FLAGS_NON_OP_STATE = 1 << 1,
};
struct nvme_id_ctrl {
__le16 vid;
__le16 ssvid;
char sn[20];
char mn[40];
char fr[8];
__u8 rab;
__u8 ieee[3];
__u8 mic;
__u8 mdts;
__u16 cntlid;
__u32 ver;
__u8 rsvd84[172];
__le16 oacs;
__u8 acl;
__u8 aerl;
__u8 frmw;
__u8 lpa;
__u8 elpe;
__u8 npss;
__u8 avscc;
__u8 apsta;
__le16 wctemp;
__le16 cctemp;
__u8 rsvd270[242];
__u8 sqes;
__u8 cqes;
__u8 rsvd514[2];
__le32 nn;
__le16 oncs;
__le16 fuses;
__u8 fna;
__u8 vwc;
__le16 awun;
__le16 awupf;
__u8 nvscc;
__u8 rsvd531;
__le16 acwu;
__u8 rsvd534[2];
__le32 sgls;
__u8 rsvd540[1508];
struct nvme_id_power_state psd[32];
__u8 vs[1024];
};
enum {
NVME_CTRL_ONCS_COMPARE = 1 << 0,
NVME_CTRL_ONCS_WRITE_UNCORRECTABLE = 1 << 1,
NVME_CTRL_ONCS_DSM = 1 << 2,
NVME_CTRL_VWC_PRESENT = 1 << 0,
};
struct nvme_lbaf {
__le16 ms;
__u8 ds;
__u8 rp;
};
struct nvme_id_ns {
__le64 nsze;
__le64 ncap;
__le64 nuse;
__u8 nsfeat;
__u8 nlbaf;
__u8 flbas;
__u8 mc;
__u8 dpc;
__u8 dps;
__u8 nmic;
__u8 rescap;
__u8 fpi;
__u8 rsvd33;
__le16 nawun;
__le16 nawupf;
__le16 nacwu;
__le16 nabsn;
__le16 nabo;
__le16 nabspf;
__u16 rsvd46;
__le64 nvmcap[2];
__u8 rsvd64[40];
__u8 nguid[16];
__u8 eui64[8];
struct nvme_lbaf lbaf[16];
__u8 rsvd192[192];
__u8 vs[3712];
};
enum {
NVME_NS_FEAT_THIN = 1 << 0,
NVME_LBAF_RP_BEST = 0,
NVME_LBAF_RP_BETTER = 1,
NVME_LBAF_RP_GOOD = 2,
NVME_LBAF_RP_DEGRADED = 3,
};
struct nvme_smart_log {
__u8 critical_warning;
__u8 temperature[2];
__u8 avail_spare;
__u8 spare_thresh;
__u8 percent_used;
__u8 rsvd6[26];
__u8 data_units_read[16];
__u8 data_units_written[16];
__u8 host_reads[16];
__u8 host_writes[16];
__u8 ctrl_busy_time[16];
__u8 power_cycles[16];
__u8 power_on_hours[16];
__u8 unsafe_shutdowns[16];
__u8 media_errors[16];
__u8 num_err_log_entries[16];
__le32 warning_temp_time;
__le32 critical_comp_time;
__le16 temp_sensor[8];
__u8 rsvd216[296];
};
enum {
NVME_SMART_CRIT_SPARE = 1 << 0,
NVME_SMART_CRIT_TEMPERATURE = 1 << 1,
NVME_SMART_CRIT_RELIABILITY = 1 << 2,
NVME_SMART_CRIT_MEDIA = 1 << 3,
NVME_SMART_CRIT_VOLATILE_MEMORY = 1 << 4,
};
struct nvme_lba_range_type {
__u8 type;
__u8 attributes;
__u8 rsvd2[14];
__u64 slba;
__u64 nlb;
__u8 guid[16];
__u8 rsvd48[16];
};
enum {
NVME_LBART_TYPE_FS = 0x01,
NVME_LBART_TYPE_RAID = 0x02,
NVME_LBART_TYPE_CACHE = 0x03,
NVME_LBART_TYPE_SWAP = 0x04,
NVME_LBART_ATTRIB_TEMP = 1 << 0,
NVME_LBART_ATTRIB_HIDE = 1 << 1,
};
struct nvme_reservation_status {
__le32 gen;
__u8 rtype;
__u8 regctl[2];
__u8 resv5[2];
__u8 ptpls;
__u8 resv10[13];
struct {
__le16 cntlid;
__u8 rcsts;
__u8 resv3[5];
__le64 hostid;
__le64 rkey;
} regctl_ds[];
};
/* I/O commands */
enum nvme_opcode {
nvme_cmd_flush = 0x00,
nvme_cmd_write = 0x01,
nvme_cmd_read = 0x02,
nvme_cmd_write_uncor = 0x04,
nvme_cmd_compare = 0x05,
nvme_cmd_write_zeroes = 0x08,
nvme_cmd_dsm = 0x09,
nvme_cmd_resv_register = 0x0d,
nvme_cmd_resv_report = 0x0e,
nvme_cmd_resv_acquire = 0x11,
nvme_cmd_resv_release = 0x15,
};
struct nvme_common_command {
__u8 opcode;
__u8 flags;
__u16 command_id;
__le32 nsid;
__le32 cdw2[2];
__le64 metadata;
__le64 prp1;
__le64 prp2;
__le32 cdw10[6];
};
struct nvme_rw_command {
__u8 opcode;
__u8 flags;
__u16 command_id;
__le32 nsid;
__u64 rsvd2;
__le64 metadata;
__le64 prp1;
__le64 prp2;
__le64 slba;
__le16 length;
__le16 control;
__le32 dsmgmt;
__le32 reftag;
__le16 apptag;
__le16 appmask;
};
enum {
NVME_RW_LR = 1 << 15,
NVME_RW_FUA = 1 << 14,
NVME_RW_DSM_FREQ_UNSPEC = 0,
NVME_RW_DSM_FREQ_TYPICAL = 1,
NVME_RW_DSM_FREQ_RARE = 2,
NVME_RW_DSM_FREQ_READS = 3,
NVME_RW_DSM_FREQ_WRITES = 4,
NVME_RW_DSM_FREQ_RW = 5,
NVME_RW_DSM_FREQ_ONCE = 6,
NVME_RW_DSM_FREQ_PREFETCH = 7,
NVME_RW_DSM_FREQ_TEMP = 8,
NVME_RW_DSM_LATENCY_NONE = 0 << 4,
NVME_RW_DSM_LATENCY_IDLE = 1 << 4,
NVME_RW_DSM_LATENCY_NORM = 2 << 4,
NVME_RW_DSM_LATENCY_LOW = 3 << 4,
NVME_RW_DSM_SEQ_REQ = 1 << 6,
NVME_RW_DSM_COMPRESSED = 1 << 7,
};
struct nvme_dsm_cmd {
__u8 opcode;
__u8 flags;
__u16 command_id;
__le32 nsid;
__u64 rsvd2[2];
__le64 prp1;
__le64 prp2;
__le32 nr;
__le32 attributes;
__u32 rsvd12[4];
};
enum {
NVME_DSMGMT_IDR = 1 << 0,
NVME_DSMGMT_IDW = 1 << 1,
NVME_DSMGMT_AD = 1 << 2,
};
struct nvme_dsm_range {
__le32 cattr;
__le32 nlb;
__le64 slba;
};
/* Admin commands */
enum nvme_admin_opcode {
nvme_admin_delete_sq = 0x00,
nvme_admin_create_sq = 0x01,
nvme_admin_get_log_page = 0x02,
nvme_admin_delete_cq = 0x04,
nvme_admin_create_cq = 0x05,
nvme_admin_identify = 0x06,
nvme_admin_abort_cmd = 0x08,
nvme_admin_set_features = 0x09,
nvme_admin_get_features = 0x0a,
nvme_admin_async_event = 0x0c,
nvme_admin_activate_fw = 0x10,
nvme_admin_download_fw = 0x11,
nvme_admin_format_nvm = 0x80,
nvme_admin_security_send = 0x81,
nvme_admin_security_recv = 0x82,
};
enum {
NVME_QUEUE_PHYS_CONTIG = (1 << 0),
NVME_CQ_IRQ_ENABLED = (1 << 1),
NVME_SQ_PRIO_URGENT = (0 << 1),
NVME_SQ_PRIO_HIGH = (1 << 1),
NVME_SQ_PRIO_MEDIUM = (2 << 1),
NVME_SQ_PRIO_LOW = (3 << 1),
NVME_FEAT_ARBITRATION = 0x01,
NVME_FEAT_POWER_MGMT = 0x02,
NVME_FEAT_LBA_RANGE = 0x03,
NVME_FEAT_TEMP_THRESH = 0x04,
NVME_FEAT_ERR_RECOVERY = 0x05,
NVME_FEAT_VOLATILE_WC = 0x06,
NVME_FEAT_NUM_QUEUES = 0x07,
NVME_FEAT_IRQ_COALESCE = 0x08,
NVME_FEAT_IRQ_CONFIG = 0x09,
NVME_FEAT_WRITE_ATOMIC = 0x0a,
NVME_FEAT_ASYNC_EVENT = 0x0b,
NVME_FEAT_AUTO_PST = 0x0c,
NVME_FEAT_SW_PROGRESS = 0x80,
NVME_FEAT_HOST_ID = 0x81,
NVME_FEAT_RESV_MASK = 0x82,
NVME_FEAT_RESV_PERSIST = 0x83,
NVME_LOG_ERROR = 0x01,
NVME_LOG_SMART = 0x02,
NVME_LOG_FW_SLOT = 0x03,
NVME_LOG_RESERVATION = 0x80,
NVME_FWACT_REPL = (0 << 3),
NVME_FWACT_REPL_ACTV = (1 << 3),
NVME_FWACT_ACTV = (2 << 3),
};
struct nvme_identify {
__u8 opcode;
__u8 flags;
__u16 command_id;
__le32 nsid;
__u64 rsvd2[2];
__le64 prp1;
__le64 prp2;
__le32 cns;
__u32 rsvd11[5];
};
struct nvme_features {
__u8 opcode;
__u8 flags;
__u16 command_id;
__le32 nsid;
__u64 rsvd2[2];
__le64 prp1;
__le64 prp2;
__le32 fid;
__le32 dword11;
__u32 rsvd12[4];
};
struct nvme_create_cq {
__u8 opcode;
__u8 flags;
__u16 command_id;
__u32 rsvd1[5];
__le64 prp1;
__u64 rsvd8;
__le16 cqid;
__le16 qsize;
__le16 cq_flags;
__le16 irq_vector;
__u32 rsvd12[4];
};
struct nvme_create_sq {
__u8 opcode;
__u8 flags;
__u16 command_id;
__u32 rsvd1[5];
__le64 prp1;
__u64 rsvd8;
__le16 sqid;
__le16 qsize;
__le16 sq_flags;
__le16 cqid;
__u32 rsvd12[4];
};
struct nvme_delete_queue {
__u8 opcode;
__u8 flags;
__u16 command_id;
__u32 rsvd1[9];
__le16 qid;
__u16 rsvd10;
__u32 rsvd11[5];
};
struct nvme_abort_cmd {
__u8 opcode;
__u8 flags;
__u16 command_id;
__u32 rsvd1[9];
__le16 sqid;
__u16 cid;
__u32 rsvd11[5];
};
struct nvme_download_firmware {
__u8 opcode;
__u8 flags;
__u16 command_id;
__u32 rsvd1[5];
__le64 prp1;
__le64 prp2;
__le32 numd;
__le32 offset;
__u32 rsvd12[4];
};
struct nvme_format_cmd {
__u8 opcode;
__u8 flags;
__u16 command_id;
__le32 nsid;
__u64 rsvd2[4];
__le32 cdw10;
__u32 rsvd11[5];
};
struct nvme_command {
union {
struct nvme_common_command common;
struct nvme_rw_command rw;
struct nvme_identify identify;
struct nvme_features features;
struct nvme_create_cq create_cq;
struct nvme_create_sq create_sq;
struct nvme_delete_queue delete_queue;
struct nvme_download_firmware dlfw;
struct nvme_format_cmd format;
struct nvme_dsm_cmd dsm;
struct nvme_abort_cmd abort;
};
};
enum {
NVME_SC_SUCCESS = 0x0,
NVME_SC_INVALID_OPCODE = 0x1,
NVME_SC_INVALID_FIELD = 0x2,
NVME_SC_CMDID_CONFLICT = 0x3,
NVME_SC_DATA_XFER_ERROR = 0x4,
NVME_SC_POWER_LOSS = 0x5,
NVME_SC_INTERNAL = 0x6,
NVME_SC_ABORT_REQ = 0x7,
NVME_SC_ABORT_QUEUE = 0x8,
NVME_SC_FUSED_FAIL = 0x9,
NVME_SC_FUSED_MISSING = 0xa,
NVME_SC_INVALID_NS = 0xb,
NVME_SC_CMD_SEQ_ERROR = 0xc,
NVME_SC_SGL_INVALID_LAST = 0xd,
NVME_SC_SGL_INVALID_COUNT = 0xe,
NVME_SC_SGL_INVALID_DATA = 0xf,
NVME_SC_SGL_INVALID_METADATA = 0x10,
NVME_SC_SGL_INVALID_TYPE = 0x11,
NVME_SC_LBA_RANGE = 0x80,
NVME_SC_CAP_EXCEEDED = 0x81,
NVME_SC_NS_NOT_READY = 0x82,
NVME_SC_RESERVATION_CONFLICT = 0x83,
NVME_SC_CQ_INVALID = 0x100,
NVME_SC_QID_INVALID = 0x101,
NVME_SC_QUEUE_SIZE = 0x102,
NVME_SC_ABORT_LIMIT = 0x103,
NVME_SC_ABORT_MISSING = 0x104,
NVME_SC_ASYNC_LIMIT = 0x105,
NVME_SC_FIRMWARE_SLOT = 0x106,
NVME_SC_FIRMWARE_IMAGE = 0x107,
NVME_SC_INVALID_VECTOR = 0x108,
NVME_SC_INVALID_LOG_PAGE = 0x109,
NVME_SC_INVALID_FORMAT = 0x10a,
NVME_SC_FIRMWARE_NEEDS_RESET = 0x10b,
NVME_SC_INVALID_QUEUE = 0x10c,
NVME_SC_FEATURE_NOT_SAVEABLE = 0x10d,
NVME_SC_FEATURE_NOT_CHANGEABLE = 0x10e,
NVME_SC_FEATURE_NOT_PER_NS = 0x10f,
NVME_SC_FW_NEEDS_RESET_SUBSYS = 0x110,
NVME_SC_BAD_ATTRIBUTES = 0x180,
NVME_SC_INVALID_PI = 0x181,
NVME_SC_READ_ONLY = 0x182,
NVME_SC_WRITE_FAULT = 0x280,
NVME_SC_READ_ERROR = 0x281,
NVME_SC_GUARD_CHECK = 0x282,
NVME_SC_APPTAG_CHECK = 0x283,
NVME_SC_REFTAG_CHECK = 0x284,
NVME_SC_COMPARE_FAILED = 0x285,
NVME_SC_ACCESS_DENIED = 0x286,
NVME_SC_DNR = 0x4000,
};
struct nvme_completion {
__le32 result; /* Used by admin commands to return data */
__u32 rsvd;
__le16 sq_head; /* how much of this queue may be reclaimed */
__le16 sq_id; /* submission queue that generated this entry */
__u16 command_id; /* of the command which completed */
__le16 status; /* did the command fail, and if so, why? */
};
struct nvme_user_io {
__u8 opcode;
__u8 flags;
__u16 control;
__u16 nblocks;
__u16 rsvd;
__u64 metadata;
__u64 addr;
__u64 slba;
__u32 dsmgmt;
__u32 reftag;
__u16 apptag;
__u16 appmask;
};
struct nvme_passthru_cmd {
__u8 opcode;
__u8 flags;
__u16 rsvd1;
__u32 nsid;
__u32 cdw2;
__u32 cdw3;
__u64 metadata;
__u64 addr;
__u32 metadata_len;
__u32 data_len;
__u32 cdw10;
__u32 cdw11;
__u32 cdw12;
__u32 cdw13;
__u32 cdw14;
__u32 cdw15;
__u32 timeout_ms;
__u32 result;
};
#define NVME_VS(major, minor) (((major) << 16) | ((minor) << 8))
#define nvme_admin_cmd nvme_passthru_cmd
#define NVME_IOCTL_ID _IO('N', 0x40)
#define NVME_IOCTL_ADMIN_CMD _IOWR('N', 0x41, struct nvme_admin_cmd)
#define NVME_IOCTL_SUBMIT_IO _IOW('N', 0x42, struct nvme_user_io)
#define NVME_IOCTL_IO_CMD _IOWR('N', 0x43, struct nvme_passthru_cmd)
#define NVME_IOCTL_RESET _IO('N', 0x44)
#define NVME_IOCTL_SUBSYS_RESET _IO('N', 0x45)
#endif /* _UAPI_LINUX_NVME_H */
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