diff options
Diffstat (limited to 'doc/man/nvme_id_ctrl.2')
| -rw-r--r-- | doc/man/nvme_id_ctrl.2 | 505 |
1 files changed, 505 insertions, 0 deletions
diff --git a/doc/man/nvme_id_ctrl.2 b/doc/man/nvme_id_ctrl.2 new file mode 100644 index 0000000..e42c4df --- /dev/null +++ b/doc/man/nvme_id_ctrl.2 @@ -0,0 +1,505 @@ +.TH "libnvme" 9 "struct nvme_id_ctrl" "April 2022" "API Manual" LINUX +.SH NAME +struct nvme_id_ctrl \- Identify Controller data structure +.SH SYNOPSIS +struct nvme_id_ctrl { +.br +.BI " __le16 vid;" +.br +.BI " __le16 ssvid;" +.br +.BI " char sn[20];" +.br +.BI " char mn[40];" +.br +.BI " char fr[8];" +.br +.BI " __u8 rab;" +.br +.BI " __u8 ieee[3];" +.br +.BI " __u8 cmic;" +.br +.BI " __u8 mdts;" +.br +.BI " __le16 cntlid;" +.br +.BI " __le32 ver;" +.br +.BI " __le32 rtd3r;" +.br +.BI " __le32 rtd3e;" +.br +.BI " __le32 oaes;" +.br +.BI " __le32 ctratt;" +.br +.BI " __le16 rrls;" +.br +.BI " __u8 rsvd102[9];" +.br +.BI " __u8 cntrltype;" +.br +.BI " __u8 fguid[16];" +.br +.BI " __le16 crdt1;" +.br +.BI " __le16 crdt2;" +.br +.BI " __le16 crdt3;" +.br +.BI " __u8 rsvd134[119];" +.br +.BI " __u8 nvmsr;" +.br +.BI " __u8 vwci;" +.br +.BI " __u8 mec;" +.br +.BI " __le16 oacs;" +.br +.BI " __u8 acl;" +.br +.BI " __u8 aerl;" +.br +.BI " __u8 frmw;" +.br +.BI " __u8 lpa;" +.br +.BI " __u8 elpe;" +.br +.BI " __u8 npss;" +.br +.BI " __u8 avscc;" +.br +.BI " __u8 apsta;" +.br +.BI " __le16 wctemp;" +.br +.BI " __le16 cctemp;" +.br +.BI " __le16 mtfa;" +.br +.BI " __le32 hmpre;" +.br +.BI " __le32 hmmin;" +.br +.BI " __u8 tnvmcap[16];" +.br +.BI " __u8 unvmcap[16];" +.br +.BI " __le32 rpmbs;" +.br +.BI " __le16 edstt;" +.br +.BI " __u8 dsto;" +.br +.BI " __u8 fwug;" +.br +.BI " __le16 kas;" +.br +.BI " __le16 hctma;" +.br +.BI " __le16 mntmt;" +.br +.BI " __le16 mxtmt;" +.br +.BI " __le32 sanicap;" +.br +.BI " __le32 hmminds;" +.br +.BI " __le16 hmmaxd;" +.br +.BI " __le16 nsetidmax;" +.br +.BI " __le16 endgidmax;" +.br +.BI " __u8 anatt;" +.br +.BI " __u8 anacap;" +.br +.BI " __le32 anagrpmax;" +.br +.BI " __le32 nanagrpid;" +.br +.BI " __le32 pels;" +.br +.BI " __le16 domainid;" +.br +.BI " __u8 rsvd358[10];" +.br +.BI " __u8 megcap[16];" +.br +.BI " __u8 rsvd384[128];" +.br +.BI " __u8 sqes;" +.br +.BI " __u8 cqes;" +.br +.BI " __le16 maxcmd;" +.br +.BI " __le32 nn;" +.br +.BI " __le16 oncs;" +.br +.BI " __le16 fuses;" +.br +.BI " __u8 fna;" +.br +.BI " __u8 vwc;" +.br +.BI " __le16 awun;" +.br +.BI " __le16 awupf;" +.br +.BI " __u8 icsvscc;" +.br +.BI " __u8 nwpc;" +.br +.BI " __le16 acwu;" +.br +.BI " __le16 ocfs;" +.br +.BI " __le32 sgls;" +.br +.BI " __le32 mnan;" +.br +.BI " __u8 maxdna[16];" +.br +.BI " __le32 maxcna;" +.br +.BI " __u8 rsvd564[204];" +.br +.BI " char subnqn[NVME_NQN_LENGTH];" +.br +.BI " __u8 rsvd1024[768];" +.br +.BI " __le32 ioccsz;" +.br +.BI " __le32 iorcsz;" +.br +.BI " __le16 icdoff;" +.br +.BI " __u8 fcatt;" +.br +.BI " __u8 msdbd;" +.br +.BI " __le16 ofcs;" +.br +.BI " __u8 dctype;" +.br +.BI " __u8 rsvd1807[241];" +.br +.BI " struct nvme_id_psd psd[32];" +.br +.BI " __u8 vs[1024];" +.br +.BI " +}; +.br + +.SH Members +.IP "vid" 12 +PCI Vendor ID, the company vendor identifier that is assigned by +the PCI SIG. +.IP "ssvid" 12 +PCI Subsystem Vendor ID, the company vendor identifier that is +assigned by the PCI SIG for the subsystem. +.IP "sn" 12 +Serial Number in ascii +.IP "mn" 12 +Model Number in ascii +.IP "fr" 12 +Firmware Revision in ascii, the currently active firmware +revision for the NVM subsystem +.IP "rab" 12 +Recommended Arbitration Burst, reported as a power of two +.IP "ieee" 12 +IEEE assigned Organization Unique Identifier +.IP "cmic" 12 +Controller Multipath IO and Namespace Sharing Capabilities of +the controller and NVM subsystem. See \fIenum nvme_id_ctrl_cmic\fP. +.IP "mdts" 12 +Max Data Transfer Size is the largest data transfer size. The +host should not submit a command that exceeds this maximum data +transfer size. The value is in units of the minimum memory page +size (CAP.MPSMIN) and is reported as a power of two +.IP "cntlid" 12 +Controller ID, the NVM subsystem unique controller identifier +associated with the controller. +.IP "ver" 12 +Version, this field contains the value reported in the Version +register, or property (see \fIenum nvme_registers\fP NVME_REG_VS). +.IP "rtd3r" 12 +RTD3 Resume Latency, the expected latency in microseconds to resume +from Runtime D3 +.IP "rtd3e" 12 +RTD3 Exit Latency, the typical latency in microseconds to enter +Runtime D3. +.IP "oaes" 12 +Optional Async Events Supported, see \fIenum\fP nvme_id_ctrl_oaes. +.IP "ctratt" 12 +Controller Attributes, see \fIenum\fP nvme_id_ctrl_ctratt. +.IP "rrls" 12 +Read Recovery Levels. If a bit is set, then the corresponding +Read Recovery Level is supported. If a bit is cleared, then the +corresponding Read Recovery Level is not supported. +.IP "rsvd102" 12 +Reserved +.IP "cntrltype" 12 +Controller Type, see \fIenum nvme_id_ctrl_cntrltype\fP +.IP "fguid" 12 +FRU GUID, a 128-bit value that is globally unique for a given +Field Replaceable Unit +.IP "crdt1" 12 +Controller Retry Delay time in 100 millisecod units if CQE CRD +field is 1 +.IP "crdt2" 12 +Controller Retry Delay time in 100 millisecod units if CQE CRD +field is 2 +.IP "crdt3" 12 +Controller Retry Delay time in 100 millisecod units if CQE CRD +field is 3 +.IP "rsvd134" 12 +Reserved +.IP "nvmsr" 12 +NVM Subsystem Report, see \fIenum nvme_id_ctrl_nvmsr\fP +.IP "vwci" 12 +VPD Write Cycle Information, see \fIenum nvme_id_ctrl_vwci\fP +.IP "mec" 12 +Management Endpoint Capabilities, see \fIenum nvme_id_ctrl_mec\fP +.IP "oacs" 12 +Optional Admin Command Support,the optional Admin commands and +features supported by the controller, see \fIenum nvme_id_ctrl_oacs\fP. +.IP "acl" 12 +Abort Command Limit, the maximum number of concurrently +executing Abort commands supported by the controller. This is a +0's based value. +.IP "aerl" 12 +Async Event Request Limit, the maximum number of concurrently +outstanding Asynchronous Event Request commands supported by the +controller This is a 0's based value. +.IP "frmw" 12 +Firmware Updates indicates capabilities regarding firmware +updates. See \fIenum nvme_id_ctrl_frmw\fP. +.IP "lpa" 12 +Log Page Attributes, see \fIenum nvme_id_ctrl_lpa\fP. +.IP "elpe" 12 +Error Log Page Entries, the maximum number of Error Information +log entries that are stored by the controller. This field is a +0's based value. +.IP "npss" 12 +Number of Power States Supported, the number of NVM Express +power states supported by the controller, indicating the number +of valid entries in \fIstruct nvme_id_ctrl\fP.psd. This is a 0's +based value. +.IP "avscc" 12 +Admin Vendor Specific Command Configuration, see +\fIenum nvme_id_ctrl_avscc\fP. +.IP "apsta" 12 +Autonomous Power State Transition Attributes, see +\fIenum nvme_id_ctrl_apsta\fP. +.IP "wctemp" 12 +Warning Composite Temperature Threshold indicates +the minimum Composite Temperature field value (see \fIstruct +nvme_smart_log\fP.critical_comp_time) that indicates an overheating +condition during which controller operation continues. +.IP "cctemp" 12 +Critical Composite Temperature Threshold, field indicates the +minimum Composite Temperature field value (see \fIstruct +nvme_smart_log\fP.critical_comp_time) that indicates a critical +overheating condition. +.IP "mtfa" 12 +Maximum Time for Firmware Activation indicates the maximum time +the controller temporarily stops processing commands to activate +the firmware image, specified in 100 millisecond units. This +field is always valid if the controller supports firmware +activation without a reset. +.IP "hmpre" 12 +Host Memory Buffer Preferred Size indicates the preferred size +that the host is requested to allocate for the Host Memory +Buffer feature in 4 KiB units. +.IP "hmmin" 12 +Host Memory Buffer Minimum Size indicates the minimum size that +the host is requested to allocate for the Host Memory Buffer +feature in 4 KiB units. +.IP "tnvmcap" 12 +Total NVM Capacity, the total NVM capacity in the NVM subsystem. +The value is in bytes. +.IP "unvmcap" 12 +Unallocated NVM Capacity, the unallocated NVM capacity in the +NVM subsystem. The value is in bytes. +.IP "rpmbs" 12 +Replay Protected Memory Block Support, see +\fIenum nvme_id_ctrl_rpmbs\fP. +.IP "edstt" 12 +Extended Device Self-test Time, if Device Self-test command is +supported (see \fIstruct nvme_id_ctrl\fP.oacs, NVME_CTRL_OACS_SELF_TEST), +then this field indicates the nominal amount of time in one +minute units that the controller takes to complete an extended +device self-test operation when in power state 0. +.IP "dsto" 12 +Device Self-test Options, see \fIenum nvme_id_ctrl_dsto\fP. +.IP "fwug" 12 +Firmware Update Granularity indicates the granularity and +alignment requirement of the firmware image being updated by the +Firmware Image Download command. The value is reported in 4 KiB +units. A value of 0h indicates no information on granularity is +provided. A value of FFh indicates no restriction +.IP "kas" 12 +Keep Alive Support indicates the granularity of the Keep Alive +Timer in 100 millisecond units. +.IP "hctma" 12 +Host Controlled Thermal Management Attributes, see +\fIenum nvme_id_ctrl_hctm\fP. +.IP "mntmt" 12 +Minimum Thermal Management Temperature indicates the minimum +temperature, in degrees Kelvin, that the host may request in the +Thermal Management Temperature 1 field and Thermal Management +Temperature 2 field of a Set Features command with the Feature +Identifier field set to NVME_FEAT_FID_HCTM. +.IP "mxtmt" 12 +Maximum Thermal Management Temperature indicates the maximum +temperature, in degrees Kelvin, that the host may request in the +Thermal Management Temperature 1 field and Thermal Management +Temperature 2 field of the Set Features command with the Feature +Identifier set to NVME_FEAT_FID_HCTM. +.IP "sanicap" 12 +Sanitize Capabilities, see \fIenum nvme_id_ctrl_sanicap\fP +.IP "hmminds" 12 +Host Memory Buffer Minimum Descriptor Entry Size indicates the +minimum usable size of a Host Memory Buffer Descriptor Entry in +4 KiB units. +.IP "hmmaxd" 12 +Host Memory Maximum Descriptors Entries indicates the number of +usable Host Memory Buffer Descriptor Entries. +.IP "nsetidmax" 12 +NVM Set Identifier Maximum, defines the maximum value of a valid +NVM Set Identifier for any controller in the NVM subsystem. +.IP "endgidmax" 12 +Endurance Group Identifier Maximum, defines the maximum value of +a valid Endurance Group Identifier for any controller in the NVM +subsystem. +.IP "anatt" 12 +ANA Transition Time indicates the maximum amount of time, in +seconds, for a transition between ANA states or the maximum +amount of time, in seconds, that the controller reports the ANA +change state. +.IP "anacap" 12 +Asymmetric Namespace Access Capabilities, see +\fIenum nvme_id_ctrl_anacap\fP. +.IP "anagrpmax" 12 +ANA Group Identifier Maximum indicates the maximum value of a +valid ANA Group Identifier for any controller in the NVM +subsystem. +.IP "nanagrpid" 12 +Number of ANA Group Identifiers indicates the number of ANA +groups supported by this controller. +.IP "pels" 12 +Persistent Event Log Size indicates the maximum reportable size +for the Persistent Event Log. +.IP "domainid" 12 +Domain Identifier indicates the identifier of the domain +that contains this controller. +.IP "rsvd358" 12 +Reserved +.IP "megcap" 12 +Max Endurance Group Capacity indicates the maximum capacity +of a single Endurance Group. +.IP "rsvd384" 12 +Reserved +.IP "sqes" 12 +Submission Queue Entry Size, see \fIenum nvme_id_ctrl_sqes\fP. +.IP "cqes" 12 +Completion Queue Entry Size, see \fIenum nvme_id_ctrl_cqes\fP. +.IP "maxcmd" 12 +Maximum Outstanding Commands indicates the maximum number of +commands that the controller processes at one time for a +particular queue. +.IP "nn" 12 +Number of Namespaces indicates the maximum value of a valid +nsid for the NVM subsystem. If the MNAN (\fIstruct nvme_id_ctrl\fP.mnan +field is cleared to 0h, then this field also indicates the +maximum number of namespaces supported by the NVM subsystem. +.IP "oncs" 12 +Optional NVM Command Support, see \fIenum nvme_id_ctrl_oncs\fP. +.IP "fuses" 12 +Fused Operation Support, see \fIenum nvme_id_ctrl_fuses\fP. +.IP "fna" 12 +Format NVM Attributes, see \fIenum nvme_id_ctrl_fna\fP. +.IP "vwc" 12 +Volatile Write Cache, see \fIenum nvme_id_ctrl_vwc\fP. +.IP "awun" 12 +Atomic Write Unit Normal indicates the size of the write +operation guaranteed to be written atomically to the NVM across +all namespaces with any supported namespace format during normal +operation. This field is specified in logical blocks and is a +0's based value. +.IP "awupf" 12 +Atomic Write Unit Power Fail indicates the size of the write +operation guaranteed to be written atomically to the NVM across +all namespaces with any supported namespace format during a +power fail or error condition. This field is specified in +logical blocks and is a 0’s based value. +.IP "icsvscc" 12 +NVM Vendor Specific Command Configuration, see +\fIenum nvme_id_ctrl_nvscc\fP. +.IP "nwpc" 12 +Namespace Write Protection Capabilities, see +\fIenum nvme_id_ctrl_nwpc\fP. +.IP "acwu" 12 +Atomic Compare & Write Unit indicates the size of the write +operation guaranteed to be written atomically to the NVM across +all namespaces with any supported namespace format for a Compare +and Write fused operation. This field is specified in logical +blocks and is a 0’s based value. +.IP "ocfs" 12 +Optional Copy Formats Supported, each bit n means controller +supports Copy Format n. +.IP "sgls" 12 +SGL Support, see \fIenum nvme_id_ctrl_sgls\fP +.IP "mnan" 12 +Maximum Number of Allowed Namespaces indicates the maximum +number of namespaces supported by the NVM subsystem. +.IP "maxdna" 12 +Maximum Domain Namespace Attachments indicates the maximum +of the sum of the numver of namespaces attached to each I/O +controller in the Domain. +.IP "maxcna" 12 +Maximum I/O Controller Namespace Attachments indicates the +maximum number of namespaces that are allowed to be attached to +this I/O controller. +.IP "rsvd564" 12 +Reserved +.IP "subnqn" 12 +NVM Subsystem NVMe Qualified Name, UTF-8 null terminated string +.IP "rsvd1024" 12 +Reserved +.IP "ioccsz" 12 +I/O Queue Command Capsule Supported Size, defines the maximum +I/O command capsule size in 16 byte units. +.IP "iorcsz" 12 +I/O Queue Response Capsule Supported Size, defines the maximum +I/O response capsule size in 16 byte units. +.IP "icdoff" 12 +In Capsule Data Offset, defines the offset where data starts +within a capsule. This value is applicable to I/O Queues only. +.IP "fcatt" 12 +Fabrics Controller Attributes, see \fIenum nvme_id_ctrl_fcatt\fP. +.IP "msdbd" 12 +Maximum SGL Data Block Descriptors indicates the maximum +number of SGL Data Block or Keyed SGL Data Block descriptors +that a host is allowed to place in a capsule. A value of 0h +indicates no limit. +.IP "ofcs" 12 +Optional Fabric Commands Support, see \fIenum nvme_id_ctrl_ofcs\fP. +.IP "dctype" 12 +Discovery Controller Type (DCTYPE). This field indicates what +type of Discovery controller the controller is (see enum +nvme_id_ctrl_dctype) +.IP "rsvd1807" 12 +Reserved +.IP "psd" 12 +Power State Descriptors, see \fIstruct nvme_id_psd\fP. +.IP "vs" 12 +Vendor Specific |