NAME

       struct nvme_ns_mgmt_host_sw_specified - Namespace management Host Software Specified Fields.

SYNOPSIS

       struct nvme_ns_mgmt_host_sw_specified {
           __le64 nsze;
           __le64 ncap;
           __u8 rsvd16[10];
           __u8 flbas;
           __u8 rsvd27[2];
           __u8 dps;
           __u8 nmic;
           __u8 rsvd31[61];
           __le32 anagrpid;
           __u8 rsvd96[4];
           __le16 nvmsetid;
           __le16 endgid;
           __u8 rsvd104[280];
           __le64 lbstm;
           __le16 nphndls;
           __u8 rsvd394[105];
           union {
             __u8 rsvd499[13];
             struct {
               __u8 znsco;
               __le32 rar;
               __le32 ror;
               __le32 rnumzrwa;
             } zns;
           };
           __le16 phndl[128];
           __u8 rsvd768[3328];
        };

Members

       nsze        Namespace  Size  indicates  the  total size of the namespace in logical blocks. The number of
                   logical blocks is based on the formatted LBA size.

       ncap        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.

       rsvd16      Reserved

       flbas       Formatted LBA Size, see enum nvme_id_ns_flbas.

       rsvd27      Reserved

       dps         End-to-end Data Protection Type Settings, see enum nvme_id_ns_dps.

       nmic        Namespace Multi-path I/O and Namespace Sharing Capabilities, see enum nvme_id_ns_nmic.

       rsvd31      Reserved

       anagrpid    ANA Group Identifier indicates the ANA Group  Identifier  of  the  ANA  group  of  which  the
                   namespace is a member.

       rsvd96      Reserved

       nvmsetid    NVM Set Identifier indicates the NVM Set with which this namespace is associated.

       endgid      Endurance  Group  Identifier  indicates  the  Endurance  Group  with  which this namespace is
                   associated.

       rsvd104     Reserved

       lbstm       Logical Block Storage Tag Mask Identifies  the  mask  for  the  Storage  Tag  field  for  the
                   protection information

       nphndls     Number  of  Placement  Handles  specifies  the  number  of  Placement Handles included in the
                   Placement Handle List

       rsvd394     Reserved

       {unnamed_union}
                   anonymous

       rsvd499     Reserved for I/O Command Sets that extend this specification.

       zns         rsvd499( Zoned Namespace Command Set specific field )

       phndl       Placement Handle Associated RUH : This field specifies the Reclaim Unit Handle Identifier  to
                   be  associated  with the Placement Handle value. If the Flexible Data Placement capability is
                   not supported or not enabled in specified Endurance Group, then the controller  shall  ignore
                   this field.

       rsvd768     Reserved

February 2025                         struct nvme_ns_mgmt_host_sw_specified                           libnvme(2)