fix(backend): add ability to set non-default tweak mode

Signed-off-by: Artsiom Koltun <[email protected]>

pkg/middleend/encryption.go

@@ -319,6 +319,7 @@ func (s *Server) getAccelCryptoKeyCreateParams(volume *pb.EncryptedVolume) spdk.
 	params.Key = hex.EncodeToString(volume.Key[:keyHalf])
 	params.Key2 = hex.EncodeToString(volume.Key[keyHalf:])
 	params.Name = path.Base(volume.Name)
+	params.TweakMode = s.tweakMode
 
 	return params
 }

pkg/middleend/middleend.go

@@ -28,12 +28,19 @@ type Server struct {
 	rpc        spdk.JSONRPC
 	store      gokv.Store
 	volumes    VolumeParameters
+	tweakMode  string
 	Pagination map[string]int
 }
 
 // NewServer creates initialized instance of MiddleEnd server communicating
 // with provided jsonRPC
 func NewServer(jsonRPC spdk.JSONRPC, store gokv.Store) *Server {
+	return NewCustomizedServer(jsonRPC, store, spdk.TweakModeSimpleLba)
+}
+
+// NewCustomizedServer creates initialized instance of MiddleEnd server communicating
+// with provided jsonRPC, store and non standard tweak mode
+func NewCustomizedServer(jsonRPC spdk.JSONRPC, store gokv.Store, tweakMode string) *Server {
 	if jsonRPC == nil {
 		log.Panic("nil for JSONRPC is not allowed")
 	}
@@ -47,6 +54,7 @@ func NewServer(jsonRPC spdk.JSONRPC, store gokv.Store) *Server {
 			qosVolumes: make(map[string]*pb.QosVolume),
 			encVolumes: make(map[string]*pb.EncryptedVolume),
 		},
+		tweakMode:  tweakMode,
 		Pagination: make(map[string]int),
 	}
 }