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nvme.h
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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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