TLBuffer: Add a nodedebugstring for quick browsing of the properties of the buffer.

src/main/scala/diplomacy/Parameters.scala

@@ -279,6 +279,9 @@ case class BufferParams(depth: Int, flow: Boolean, pipe: Boolean)
       sq.io.enq <> x
       sq.io.deq
     }
+
+  override def toString() = "BufferParams:%d%s%s".format(depth, if (flow) "F" else "", if (pipe) "P" else "")
+
 }
 
 object BufferParams

src/main/scala/tilelink/Buffer.scala

@@ -8,6 +8,19 @@ import freechips.rocketchip.config.Parameters
 import freechips.rocketchip.diplomacy._
 import scala.math.{min,max}
 
+class TLBufferNode (
+  a: BufferParams,
+  b: BufferParams,
+  c: BufferParams,
+  d: BufferParams,
+  e: BufferParams)(implicit p: Parameters) extends TLAdapterNode(
+    clientFn  = { p => p.copy(minLatency = p.minLatency + b.latency + c.latency) },
+    managerFn = { p => p.copy(minLatency = p.minLatency + a.latency + d.latency) }
+) {
+  override lazy val nodedebugstring = s"a:${a.toString}, b:${b.toString}, c:${c.toString}, d:${d.toString}, e:${e.toString}"
+
+}
+
 class TLBuffer(
   a: BufferParams,
   b: BufferParams,
@@ -19,9 +32,7 @@ class TLBuffer(
   def this(abcde: BufferParams)(implicit p: Parameters) = this(abcde, abcde)
   def this()(implicit p: Parameters) = this(BufferParams.default)
 
-  val node = TLAdapterNode(
-    clientFn  = { p => p.copy(minLatency = p.minLatency + b.latency + c.latency) },
-    managerFn = { p => p.copy(minLatency = p.minLatency + a.latency + d.latency) })
+  val node = new TLBufferNode(a, b, c, d, e)
 
   lazy val module = new LazyModuleImp(this) {
     val io = new Bundle {