diff --git a/sys/dev/cxgb/cxgb_sge.c b/sys/dev/cxgb/cxgb_sge.c
--- a/sys/dev/cxgb/cxgb_sge.c
+++ b/sys/dev/cxgb/cxgb_sge.c
@@ -322,7 +322,8 @@
 	int *nbytes = &ci->nbytes;
 
 	if ((*nbytes == 0) || ((*nbytes + m->m_len <= 10500) &&
-		(*count < 7) && (m->m_next == NULL))) {
+	    (*count < 7) && (m->m_next == NULL) &&
+	    ((mtod(m, vm_offset_t) & PAGE_MASK) + m->m_len <= PAGE_SIZE))) {
 		*count += 1;
 		*nbytes += m->m_len;
 		return (1);
diff --git a/sys/dev/cxgb/sys/mvec.h b/sys/dev/cxgb/sys/mvec.h
--- a/sys/dev/cxgb/sys/mvec.h
+++ b/sys/dev/cxgb/sys/mvec.h
@@ -33,20 +33,6 @@
 #define _MVEC_H_
 #include <machine/bus.h>
 
-static __inline void
-busdma_map_mbuf_fast(bus_dma_tag_t tag, bus_dmamap_t map,
-    struct mbuf *m, bus_dma_segment_t *seg)
-{
-#if defined(__i386__) || defined(__amd64__)
-	seg->ds_addr = pmap_kextract(mtod(m, vm_offset_t));
-	seg->ds_len = m->m_len;
-#else
-	int nsegstmp;
-
-	bus_dmamap_load_mbuf_sg(tag, map, m, seg, &nsegstmp, 0);
-#endif
-}
-
 int busdma_map_sg_collapse(bus_dma_tag_t tag, bus_dmamap_t map,
     struct mbuf **m, bus_dma_segment_t *segs, int *nsegs);
 void busdma_map_sg_vec(bus_dma_tag_t tag, bus_dmamap_t map,
diff --git a/sys/dev/cxgb/sys/uipc_mvec.c b/sys/dev/cxgb/sys/uipc_mvec.c
--- a/sys/dev/cxgb/sys/uipc_mvec.c
+++ b/sys/dev/cxgb/sys/uipc_mvec.c
@@ -65,26 +65,7 @@
 retry:
 	psegs = segs;
 	seg_count = 0;
-	if (n->m_next == NULL) {
-		busdma_map_mbuf_fast(tag, map, n, segs);
-		*nsegs = 1;
-		return (0);
-	}
-#if defined(__i386__) || defined(__amd64__)
-	while (n && seg_count < TX_MAX_SEGS) {
-		/*
-		 * firmware doesn't like empty segments
-		 */
-		if (__predict_true(n->m_len != 0)) {
-			seg_count++;
-			busdma_map_mbuf_fast(tag, map, n, psegs);
-			psegs++;
-		}
-		n = n->m_next;
-	}
-#else
 	err = bus_dmamap_load_mbuf_sg(tag, map, *m, segs, &seg_count, 0);
-#endif	
 	if (seg_count == 0) {
 		if (cxgb_debug)
 			printf("empty segment chain\n");
@@ -117,8 +98,9 @@
 busdma_map_sg_vec(bus_dma_tag_t tag, bus_dmamap_t map,
     struct mbuf *m, bus_dma_segment_t *segs, int *nsegs)
 {
+	int n = 0;
 
-	for (*nsegs = 0; m != NULL ; segs++, *nsegs += 1, m = m->m_nextpkt)
-		busdma_map_mbuf_fast(tag, map, m, segs);
+	for (*nsegs = 0; m != NULL; segs += n, *nsegs += n, m = m->m_nextpkt)
+		bus_dmamap_load_mbuf_sg(tag, map, m, segs, &n, 0);
 }