syntax = "proto3";

package sma.nvmf;

option go_package = "spdk.io/sma/nvmf";

// Defines an address of an NVMeoF endpoint
message Address {
  // Transport type ("rdma" or "tcp")
  string trtype = 1;
  // Transport address (IP)
  string traddr = 2;
  // Transport service identifier (port number)
  string trsvcid = 3;
}
// NVMeoF connection using discovery service
message VolumeDiscoveryParameters {
  // One or more discovery endpoints
  repeated Address discovery_endpoints = 1;
}

// Describes connection parameters for an NVMeoF volume (namespace)
message VolumeConnectionParameters {
  // Subsystem that the volume is exposed through.  A volume with a given
  // GUID/UUID won't be created if it's attached to a different subsystem.  This
  // field is optional and can be left empty.
  string subnqn = 1;
  // Host NQN to use when connecting to the subsystem exposing the volume (and,
  // if using discovery, to the discovery subsystem too).
  string hostnqn = 2;
  oneof connection_params {
    // Connection through discovery service
    VolumeDiscoveryParameters discovery = 3;
  }
}