cxgb3: trivial endianness annotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/cxgb3/common.h b/drivers/net/cxgb3/common.h
index 3e5b0db7..99c75d30 100644
--- a/drivers/net/cxgb3/common.h
+++ b/drivers/net/cxgb3/common.h
@@ -168,8 +168,8 @@
 };
 
 struct sg_ent {			/* SGE scatter/gather entry */
-	u32 len[2];
-	u64 addr[2];
+	__be32 len[2];
+	__be64 addr[2];
 };
 
 #ifndef SGE_NUM_GENBITS