const golang.org/x/sys/unix.DEVLINK_ATTR_ESWITCH_ENCAP_MODE

one use

	golang.org/x/sys/unix (current package)
		ztypes_linux.go#L3392: 	DEVLINK_ATTR_ESWITCH_ENCAP_MODE                    = 0x3e

The pages are generated with Golds v0.7.6. (GOOS=linux GOARCH=amd64)