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.