Index: head/sys/dev/sfxge/common/efx.h
===================================================================
--- head/sys/dev/sfxge/common/efx.h
+++ head/sys/dev/sfxge/common/efx.h
@@ -2107,7 +2107,6 @@
 #define	EFX_TXQ_SIZE(_ndescs)		((_ndescs) * sizeof (efx_qword_t))
 #define	EFX_TXQ_NBUFS(_ndescs)		(EFX_TXQ_SIZE(_ndescs) / EFX_BUF_SIZE)
 #define	EFX_TXQ_LIMIT(_ndescs)		((_ndescs) - 16)
-#define	EFX_TXQ_DC_NDESCS(_dcsize)	(8 << _dcsize)
 
 #define	EFX_TXQ_MAX_BUFS 8 /* Maximum independent of EFX_BUG35388_WORKAROUND. */
 
Index: head/sys/dev/sfxge/common/efx_impl.h
===================================================================
--- head/sys/dev/sfxge/common/efx_impl.h
+++ head/sys/dev/sfxge/common/efx_impl.h
@@ -362,12 +362,7 @@
 #ifndef EFX_RXQ_LIMIT_TARGET
 #define	EFX_RXQ_LIMIT_TARGET 512
 #endif
-#ifndef EFX_TXQ_DC_SIZE
-#define	EFX_TXQ_DC_SIZE 1 /* 16 descriptors */
-#endif
-#ifndef EFX_RXQ_DC_SIZE
-#define	EFX_RXQ_DC_SIZE 3 /* 64 descriptors */
-#endif
+
 
 #if EFSYS_OPT_FILTER
 
Index: head/sys/dev/sfxge/common/siena_impl.h
===================================================================
--- head/sys/dev/sfxge/common/siena_impl.h
+++ head/sys/dev/sfxge/common/siena_impl.h
@@ -44,7 +44,16 @@
 extern "C" {
 #endif
 
+#ifndef EFX_TXQ_DC_SIZE
+#define	EFX_TXQ_DC_SIZE 1 /* 16 descriptors */
+#endif
+#ifndef EFX_RXQ_DC_SIZE
+#define	EFX_RXQ_DC_SIZE 3 /* 64 descriptors */
+#endif
+#define	EFX_TXQ_DC_NDESCS(_dcsize)	(8 << (_dcsize))
+
 #define	SIENA_NVRAM_CHUNK 0x80
+
 
 extern	__checkReturn	efx_rc_t
 siena_nic_probe(