| /* |
| * 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; |
| __u8 rsvd16[16]; |
| }; |
| |
| 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; |
| __u8 rsvd78[178]; |
| __le16 oacs; |
| __u8 acl; |
| __u8 aerl; |
| __u8 frmw; |
| __u8 lpa; |
| __u8 elpe; |
| __u8 npss; |
| __u8 rsvd264[248]; |
| __u8 sqes; |
| __u8 cqes; |
| __u8 rsvd514[2]; |
| __le32 nn; |
| __le16 oncs; |
| __le16 fuses; |
| __u8 fna; |
| __u8 vwc; |
| __le16 awun; |
| __le16 awupf; |
| __u8 rsvd530[1518]; |
| 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 rsvd30[98]; |
| 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]; |
| __u8 rsvd192[320]; |
| }; |
| |
| 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, |
| }; |
| |
| /* 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_dsm = 0x09, |
| }; |
| |
| 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_SW_PROGRESS = 0x0c, |
| 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_LBA_RANGE = 0x80, |
| NVME_SC_CAP_EXCEEDED = 0x81, |
| NVME_SC_NS_NOT_READY = 0x82, |
| 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_BAD_ATTRIBUTES = 0x180, |
| 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_admin_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_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) |
| |
| #endif /* _UAPI_LINUX_NVME_H */ |