Handle rx error.

ok miod@

diff --git a/sys/dev/fdt/if_dwge.c b/sys/dev/fdt/if_dwge.c
index 7a61971..62dc34e 100644 (file)
--- a/sys/dev/fdt/if_dwge.c
+++ b/sys/dev/fdt/if_dwge.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: if_dwge.c,v 1.20 2023/11/10 15:51:19 bluhm Exp $      */
+/*     $OpenBSD: if_dwge.c,v 1.21 2023/11/20 20:41:18 kettenis Exp $   */
 /*
  * Copyright (c) 2008, 2019 Mark Kettenis <kettenis@openbsd.org>
  * Copyright (c) 2017 Patrick Wildt <patrick@blueri.se>
@@ -214,6 +214,7 @@ struct dwge_desc {
 #define RDES0_OE               (1 << 11)
 #define RDES0_SAF              (1 << 13)
 #define RDES0_DE               (1 << 14)
+#define RDES0_ES               (1 << 15)
 #define RDES0_FL_MASK          0x3fff
 #define RDES0_FL_SHIFT         16
 #define RDES0_AFM              (1 << 30)
@@ -1097,15 +1098,20 @@ dwge_rx_proc(struct dwge_softc *sc)
                    len, BUS_DMASYNC_POSTREAD);
                bus_dmamap_unload(sc->sc_dmat, rxb->tb_map);
 
-               /* Strip off CRC. */
-               len -= ETHER_CRC_LEN;
-               KASSERT(len > 0);
-
                m = rxb->tb_m;
                rxb->tb_m = NULL;
-               m->m_pkthdr.len = m->m_len = len;
+               if (rxd->sd_status & RDES0_ES) {
+                       ifp->if_ierrors++;
+                       m_freem(m);
+               } else {
+                       /* Strip off CRC. */
+                       len -= ETHER_CRC_LEN;
+                       KASSERT(len > 0);
 
-               ml_enqueue(&ml, m);
+                       m->m_pkthdr.len = m->m_len = len;
+
+                       ml_enqueue(&ml, m);
+               }
 
                put++;
                if (sc->sc_rx_cons == (DWGE_NRXDESC - 1))