From 1b0dc8dacf043d49eff7cdd9f6272e446304ad68 Mon Sep 17 00:00:00 2001
From: David du Colombier <0intro@gmail.com>
Date: Tue, 11 Jul 1995 00:00:00 +0000
Subject: [PATCH] Plan 9 from Bell Labs 1995-07-11

---
 pc/devether.c | 3 ++-
 port/netif.c  | 3 ++-
 port/netif.h  | 1 +
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/pc/devether.c b/pc/devether.c
index daf31a8cc5f5aba2fcccffd58f27c71e293dfc7d..c39812da6c26952b2afcc5d14c0486945d8fe951 100644
--- a/pc/devether.c
+++ b/pc/devether.c
@@ -110,7 +110,8 @@ etherrloop(Ether *ctlr, Etherpkt *pkt, long len, int tome)
 	ep = &ctlr->f[Ntypes];
 	for(fp = ctlr->f; fp < ep; fp++){
 		if((f = *fp) && ((tome && f->type==type) || f->type < 0))
-			qproduce(f->in, pkt->d, len);
+			if(qproduce(f->in, pkt->d, len) < 0)
+				ctlr->soverflows++;
 	}
 }
 
diff --git a/port/netif.c b/port/netif.c
index 9761a0a162b955d60cee0a6032506eebf970f3aa..ad580dc9ce9f6d206338fbd588e7b7d1f90421cf 100644
--- a/port/netif.c
+++ b/port/netif.c
@@ -159,7 +159,7 @@ netifread(Netif *nif, Chan *c, void *a, long n, ulong offset)
 {
 	int i, j;
 	Netfile *f;
-	char buf[512];
+	char buf[1024];
 
 	if(c->qid.path&CHDIR)
 		return devdirread(c, a, n, (Dirtab*)nif, 0, netifgen);
@@ -175,6 +175,7 @@ netifread(Netif *nif, Chan *c, void *a, long n, ulong offset)
 		j += sprint(buf+j, "out: %d\n", nif->outpackets);
 		j += sprint(buf+j, "crc errs: %d\n", nif->crcs);
 		j += sprint(buf+j, "overflows: %d\n", nif->overflows);
+		j += sprint(buf+j, "soft overflows: %d\n", nif->soverflows);
 		j += sprint(buf+j, "framing errs: %d\n", nif->frames);
 		j += sprint(buf+j, "buffer errs: %d\n", nif->buffs);
 		j += sprint(buf+j, "output errs: %d\n", nif->oerrs);
diff --git a/port/netif.h b/port/netif.h
index 77e9e22b45a2874a21550164a945d55e389569ce..12260064bd7b503509930a3e660cbed88298721c 100644
--- a/port/netif.h
+++ b/port/netif.h
@@ -69,6 +69,7 @@ struct Netif
 	int	frames;		/* framing errors */
 	int	overflows;	/* packet overflows */
 	int	buffs;		/* buffering errors */
+	int	soverflows;	/* software overflow */
 
 	/* routines for touching the hardware */
 	void	*arg;