NAME

       enum nbft_ssns_flags - Subsystem and Namespace Specific Flags Field (Figure 16)

SYNOPSIS

       enum nbft_ssns_flags {
           NBFT_SSNS_VALID ,
           NBFT_SSNS_NON_BOOTABLE_ENTRY ,
           NBFT_SSNS_USE_SECURITY_FIELD ,
           NBFT_SSNS_DHCP_ROOT_PATH_OVERRIDE ,
           NBFT_SSNS_EXTENDED_INFO_IN_USE ,
           NBFT_SSNS_SEPARATE_DISCOVERY_CTRL ,
           NBFT_SSNS_DISCOVERED_NAMESPACE ,
           NBFT_SSNS_UNAVAIL_NAMESPACE_MASK ,
           NBFT_SSNS_UNAVAIL_NAMESPACE_NOTIND ,
           NBFT_SSNS_UNAVAIL_NAMESPACE_AVAIL ,
           NBFT_SSNS_UNAVAIL_NAMESPACE_UNAVAIL

       };

Constants

       NBFT_SSNS_VALID
                   Descriptor  Valid:  If  set to 1h, then this descriptor is valid. If cleared to 0h, then this
                   descriptor is not valid. A host that supports NVMe-oF Boot, but does  not  currently  have  a
                   remote Subsystem and Namespace assigned may clear this bit to 0h.

       NBFT_SSNS_NON_BOOTABLE_ENTRY
                   Non-bootable Entry Flag: If set to 1h, this flag indicates that this SSNS Descriptor contains
                   a  namespace  of  administrative  purpose  to  the  boot process, but the pre-OS may not have
                   established connectivity to or evaluated the contents of this Descriptor. Such namespaces may
                   contain supplemental data deemed relevant by the Administrator as part of the  pre-OS  to  OS
                   hand  off.  This  may  include  properties  such as a UEFI device path that may not have been
                   created for this namespace. This means an OS runtime may still require the contents of such a
                   namespace to complete later stages of boot. If cleared to 0h, then  this  namespace  did  not
                   have any special administrative intent.

       NBFT_SSNS_USE_SECURITY_FIELD
                   Use  Security Flag: If set to 1h, then there is a Security Profile Descriptor associated with
                   this SSNS record and the Security Profile Descriptor Index field is valid. If cleared to  0h,
                   then  there  is  no  Security  Profile  Descriptor  associated  with this SSNS record and the
                   Security Profile Descriptor Index field is not valid.

       NBFT_SSNS_DHCP_ROOT_PATH_OVERRIDE
                   DHCP Root-Path Override Flag: If set to 1h,  then  this  SSNS  descriptor  was  populated  by
                   consuming the DHCP Root-Path on this interface. If cleared to 0h, then the DHCP Root-Path was
                   not used in populating the SSNS descriptor.

       NBFT_SSNS_EXTENDED_INFO_IN_USE
                   SSNS Extended Info In-use Flag: If set to 1h, then the SSNS Extended Information Offset field
                   and  the SSNS Extended Information Length field are valid. This flag, if set to 1h, indicates
                   that a  Subsystem  and  Namespace  Extended  Information  Descriptor  corresponding  to  this
                   descriptor is present.

       NBFT_SSNS_SEPARATE_DISCOVERY_CTRL
                   Separate  Discovery  Controller  Flag: If set to 1h, then the Discovery controller associated
                   with this volume is on a different transport address than  the  specified  in  the  Subsystem
                   Transport  Address  Heap Object Reference. If cleared to 0h, then the Discovery controller is
                   the same as the Subsystem Transport Address Heap Object Reference.

       NBFT_SSNS_DISCOVERED_NAMESPACE
                   Discovered Namespace Flag: If set to 1h, then this namespace was acquired through  discovery.
                   If cleared to 0h, then this namespace was explicitly configured in the system.

       NBFT_SSNS_UNAVAIL_NAMESPACE_MASK
                   Mask  to  get  Unavailable  Namespace  Flag:  This  field  indicates  the availability of the
                   namespace at a specific point in time. Such use is only a hint and its use does not guarantee
                   the availability of that referenced namespace at any future point in time.

       NBFT_SSNS_UNAVAIL_NAMESPACE_NOTIND
                   Not Indicated by Driver: No information is provided.

       NBFT_SSNS_UNAVAIL_NAMESPACE_AVAIL
                   Available: A referenced namespace described by this flag was  previously  accessible  by  the
                   pre-OS driver.

       NBFT_SSNS_UNAVAIL_NAMESPACE_UNAVAIL
                   Unavailable:  This  namespace was administratively configured but unattempted, unavailable or
                   inaccessible when establishing connectivity by the pre-OS driver.

February 2025                                 enum nbft_ssns_flags                                    libnvme(2)