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diff --git a/doc/man/nvme_id_ns.2 b/doc/man/nvme_id_ns.2 new file mode 100644 index 0000000..8305252 --- /dev/null +++ b/doc/man/nvme_id_ns.2 @@ -0,0 +1,237 @@ +.TH "libnvme" 9 "struct nvme_id_ns" "January 2023" "API Manual" LINUX +.SH NAME +struct nvme_id_ns \- Identify Namespace data structure +.SH SYNOPSIS +struct nvme_id_ns { +.br +.BI " __le64 nsze;" +.br +.BI " __le64 ncap;" +.br +.BI " __le64 nuse;" +.br +.BI " __u8 nsfeat;" +.br +.BI " __u8 nlbaf;" +.br +.BI " __u8 flbas;" +.br +.BI " __u8 mc;" +.br +.BI " __u8 dpc;" +.br +.BI " __u8 dps;" +.br +.BI " __u8 nmic;" +.br +.BI " __u8 rescap;" +.br +.BI " __u8 fpi;" +.br +.BI " __u8 dlfeat;" +.br +.BI " __le16 nawun;" +.br +.BI " __le16 nawupf;" +.br +.BI " __le16 nacwu;" +.br +.BI " __le16 nabsn;" +.br +.BI " __le16 nabo;" +.br +.BI " __le16 nabspf;" +.br +.BI " __le16 noiob;" +.br +.BI " __u8 nvmcap[16];" +.br +.BI " __le16 npwg;" +.br +.BI " __le16 npwa;" +.br +.BI " __le16 npdg;" +.br +.BI " __le16 npda;" +.br +.BI " __le16 nows;" +.br +.BI " __le16 mssrl;" +.br +.BI " __le32 mcl;" +.br +.BI " __u8 msrc;" +.br +.BI " __u8 rsvd81;" +.br +.BI " __u8 nulbaf;" +.br +.BI " __u8 rsvd83[9];" +.br +.BI " __le32 anagrpid;" +.br +.BI " __u8 rsvd96[3];" +.br +.BI " __u8 nsattr;" +.br +.BI " __le16 nvmsetid;" +.br +.BI " __le16 endgid;" +.br +.BI " __u8 nguid[16];" +.br +.BI " __u8 eui64[8];" +.br +.BI " struct nvme_lbaf lbaf[64];" +.br +.BI " __le64 lbstm;" +.br +.BI " __u8 vs[3704];" +.br +.BI " +}; +.br + +.SH Members +.IP "nsze" 12 +Namespace Size indicates the total size of the namespace in +logical blocks. The number of logical blocks is based on the +formatted LBA size. +.IP "ncap" 12 +Namespace Capacity indicates the maximum number of logical blocks +that may be allocated in the namespace at any point in time. The +number of logical blocks is based on the formatted LBA size. +.IP "nuse" 12 +Namespace Utilization indicates the current number of logical +blocks allocated in the namespace. This field is smaller than or +equal to the Namespace Capacity. The number of logical blocks is +based on the formatted LBA size. +.IP "nsfeat" 12 +Namespace Features, see \fIenum nvme_id_nsfeat\fP. +.IP "nlbaf" 12 +Number of LBA Formats defines the number of supported LBA data +size and metadata size combinations supported by the namespace +and the highest possible index to \fIstruct nvme_id_ns\fP.lbaf. +.IP "flbas" 12 +Formatted LBA Size, see \fIenum nvme_id_ns_flbas\fP. +.IP "mc" 12 +Metadata Capabilities, see \fIenum nvme_id_ns_mc\fP. +.IP "dpc" 12 +End-to-end Data Protection Capabilities, see +\fIenum nvme_id_ns_dpc\fP. +.IP "dps" 12 +End-to-end Data Protection Type Settings, see +\fIenum nvme_id_ns_dps\fP. +.IP "nmic" 12 +Namespace Multi-path I/O and Namespace Sharing Capabilities, see +\fIenum nvme_id_ns_nmic\fP. +.IP "rescap" 12 +Reservation Capabilities, see \fIenum nvme_id_ns_rescap\fP. +.IP "fpi" 12 +Format Progress Indicator, see \fIenum nvme_nd_ns_fpi\fP. +.IP "dlfeat" 12 +Deallocate Logical Block Features, see \fIenum nvme_id_ns_dlfeat\fP. +.IP "nawun" 12 +Namespace Atomic Write Unit Normal indicates the +namespace specific size of the write operation guaranteed to be +written atomically to the NVM during normal operation. +.IP "nawupf" 12 +Namespace Atomic Write Unit Power Fail indicates the +namespace specific size of the write operation guaranteed to be +written atomically to the NVM during a power fail or error +condition. +.IP "nacwu" 12 +Namespace Atomic Compare & Write Unit indicates the namespace +specific size of the write operation guaranteed to be written +atomically to the NVM for a Compare and Write fused command. +.IP "nabsn" 12 +Namespace Atomic Boundary Size Normal indicates the atomic +boundary size for this namespace for the NAWUN value. This field +is specified in logical blocks. +.IP "nabo" 12 +Namespace Atomic Boundary Offset indicates the LBA on this +namespace where the first atomic boundary starts. +.IP "nabspf" 12 +Namespace Atomic Boundary Size Power Fail indicates the atomic +boundary size for this namespace specific to the Namespace Atomic +Write Unit Power Fail value. This field is specified in logical +blocks. +.IP "noiob" 12 +Namespace Optimal I/O Boundary indicates the optimal I/O boundary +for this namespace. This field is specified in logical blocks. +The host should construct Read and Write commands that do not +cross the I/O boundary to achieve optimal performance. +.IP "nvmcap" 12 +NVM Capacity indicates the total size of the NVM allocated to +this namespace. The value is in bytes. +.IP "npwg" 12 +Namespace Preferred Write Granularity indicates the smallest +recommended write granularity in logical blocks for this +namespace. This is a 0's based value. +.IP "npwa" 12 +Namespace Preferred Write Alignment indicates the recommended +write alignment in logical blocks for this namespace. This is a +0's based value. +.IP "npdg" 12 +Namespace Preferred Deallocate Granularity indicates the +recommended granularity in logical blocks for the Dataset +Management command with the Attribute - Deallocate bit. +.IP "npda" 12 +Namespace Preferred Deallocate Alignment indicates the +recommended alignment in logical blocks for the Dataset +Management command with the Attribute - Deallocate bit +.IP "nows" 12 +Namespace Optimal Write Size indicates the size in logical blocks +for optimal write performance for this namespace. This is a 0's +based value. +.IP "mssrl" 12 +Maximum Single Source Range Length indicates the maximum number +of logical blocks that may be specified in each valid Source Range +field of a Copy command. +.IP "mcl" 12 +Maximum Copy Length indicates the maximum number of logical +blocks that may be specified in a Copy command. +.IP "msrc" 12 +Maximum Source Range Count indicates the maximum number of Source +Range entries that may be used to specify source data in a Copy +command. This is a 0’s based value. +.IP "rsvd81" 12 +Reserved +.IP "nulbaf" 12 +Number of Unique Capability LBA Formats defines the number of +supported user data size and metadata size combinations supported +by the namespace that may not share the same capabilities. LBA +formats shall be allocated in order and packed sequentially. +.IP "rsvd83" 12 +Reserved +.IP "anagrpid" 12 +ANA Group Identifier indicates the ANA Group Identifier of the +ANA group of which the namespace is a member. +.IP "rsvd96" 12 +Reserved +.IP "nsattr" 12 +Namespace Attributes, see \fIenum nvme_id_ns_attr\fP. +.IP "nvmsetid" 12 +NVM Set Identifier indicates the NVM Set with which this +namespace is associated. +.IP "endgid" 12 +Endurance Group Identifier indicates the Endurance Group with +which this namespace is associated. +.IP "nguid" 12 +Namespace Globally Unique Identifier contains a 128-bit value +that is globally unique and assigned to the namespace when the +namespace is created. This field remains fixed throughout the +life of the namespace and is preserved across namespace and +controller operations +.IP "eui64" 12 +IEEE Extended Unique Identifier contains a 64-bit IEEE Extended +Unique Identifier (EUI-64) that is globally unique and assigned +to the namespace when the namespace is created. This field +remains fixed throughout the life of the namespace and is +preserved across namespace and controller operations +.IP "lbaf" 12 +LBA Format, see \fIstruct nvme_lbaf\fP. +.IP "lbstm" 12 +Logical Block Storage Tag Mask for end-to-end protection +.IP "vs" 12 +Vendor Specific |