Cool. Drop oversized packets rather than splitting into mbufs. NetBSD log:

>From Mycroft:  If we fail to allocate a cluster to hold a large packet,
>simply drop it rather than using a chain of tiny mbufs.

diff --git a/sys/arch/mac68k/dev/if_ae.c b/sys/arch/mac68k/dev/if_ae.c
index e2a2dcb..b86ffde 100644 (file)
--- a/sys/arch/mac68k/dev/if_ae.c
+++ b/sys/arch/mac68k/dev/if_ae.c
@@ -1,5 +1,5 @@
-/*     $OpenBSD: if_ae.c,v 1.12 1997/04/17 17:46:41 gene Exp $ */
-/*     $NetBSD: if_ae.c,v 1.61 1997/04/14 16:28:34 scottr Exp $        */
+/*     $OpenBSD: if_ae.c,v 1.13 1997/04/25 22:15:26 gene Exp $ */
+/*     $NetBSD: if_ae.c,v 1.62 1997/04/24 16:52:05 scottr Exp $        */
 
 /*
  * Device driver for National Semiconductor DS8390/WD83C690 based ethernet
@@ -960,8 +960,11 @@ aeget(sc, src, total_len)
                }
                if (total_len >= MINCLSIZE) {
                        MCLGET(m, M_DONTWAIT);
-                       if (m->m_flags & M_EXT)
-                               len = MCLBYTES;
+                       if ((m->m_flags & M_EXT) == 0) {
+                               m_freem(top);
+                               return 0;
+                       }
+                       len = MCLBYTES;
                }
                m->m_len = len = min(total_len, len);
                src = ae_ring_copy(sc, src, mtod(m, caddr_t), len);