Index: sys/dev/e1000/if_em.c
===================================================================
--- sys/dev/e1000/if_em.c
+++ sys/dev/e1000/if_em.c
@@ -1429,15 +1429,8 @@
 	*/
 	if (adapter->hw.mac.max_frame_size <= 2048)
 		adapter->rx_mbuf_sz = MCLBYTES;
-#ifndef CONTIGMALLOC_WORKS
        else
                adapter->rx_mbuf_sz = MJUMPAGESIZE;
-#else
-	else if (adapter->hw.mac.max_frame_size <= 4096)
-		adapter->rx_mbuf_sz = MJUMPAGESIZE;
-	else
-		adapter->rx_mbuf_sz = MJUM9BYTES;
-#endif
 
 	/* Prepare receive descriptors and buffers */
 	if (em_setup_receive_structures(adapter)) {
Index: sys/net/iflib.c
===================================================================
--- sys/net/iflib.c
+++ sys/net/iflib.c
@@ -2023,17 +2023,8 @@
 	 */
 	if (sctx->isc_max_frame_size <= 2048)
 		fl->ifl_buf_size = MCLBYTES;
-#ifndef CONTIGMALLOC_WORKS
 	else
 		fl->ifl_buf_size = MJUMPAGESIZE;
-#else
-	else if (sctx->isc_max_frame_size <= 4096)
-		fl->ifl_buf_size = MJUMPAGESIZE;
-	else if (sctx->isc_max_frame_size <= 9216)
-		fl->ifl_buf_size = MJUM9BYTES;
-	else
-		fl->ifl_buf_size = MJUM16BYTES;
-#endif
 	if (fl->ifl_buf_size > ctx->ifc_max_fl_buf_size)
 		ctx->ifc_max_fl_buf_size = fl->ifl_buf_size;
 	fl->ifl_cltype = m_gettype(fl->ifl_buf_size);