NAME

       struct nbft_discovery - Discovery Descriptor (Figure 24)

SYNOPSIS

       struct nbft_discovery {
           __u8 structure_id;
           __u8 flags;
           __u8 index;
           __u8 hfi_index;
           __u8 sec_index;
           __u8 reserved1;
           struct nbft_heap_obj discovery_ctrl_addr_obj;
           struct nbft_heap_obj discovery_ctrl_nqn_obj;
           __u8 reserved2[14];
        };

Members

       structure_id
                   Structure   ID:   This   field   shall   be   set   to   6h   (i.e.,   Discovery  Descriptor;
                   #NBFT_DESC_DISCOVERY).

       flags       Discovery Descriptor Flags, see enum nbft_discovery_flags.

       index       Discovery Descriptor Index: This field indicates the number of this Discovery  Descriptor  in
                   the Discovery Descriptor List.

       hfi_index   HFI Descriptor Index: This field indicates the value of the HFI Descriptor Index field of the
                   HFI  Descriptor  associated  with  this Discovery Descriptor. If multiple HFIs share a common
                   Discovery controller, there shall be multiple Discovery Descriptor entries with one per HFI.

       sec_index   Security Profile Descriptor Index: This field indicates the value  of  the  Security  Profile
                   Descriptor Index field of the Security Descriptor associated with this Discovery Descriptor.

       reserved1   Reserved.

       discovery_ctrl_addr_obj
                   Discovery  Controller  Address  Heap  Object Reference: This field indicates the location and
                   size of a heap  object  containing  a  URI  which  indicates  an  NVMe  Discovery  controller
                   associated  with  this  Discovery Descriptor.  If this field is cleared to 0h, then no URI is
                   specified.

       discovery_ctrl_nqn_obj
                   Discovery Controller NQN Heap Object Reference: If  set  to  a  non-zero  value,  this  field
                   indicates the location and size of a heap object containing an NVMe Discovery controller NQN.
                   If  the  NVMe  Discovery  controller referenced by this record requires secure authentication
                   with a well known Subsystem NQN, this field indicates the unique NQN for that NVMe  Discovery
                   controller.  This  record is involved formatted as an NQN string. If this field is cleared to
                   0h, then this field is reserved and the OS shall use the well known discovery  NQN  for  this
                   record.

       reserved2   Reserved.

May 2025                                      struct nbft_discovery                                   libnvme(2)