From 7b5cf8de2dccafa565a62908d307f2033ee69420 Mon Sep 17 00:00:00 2001
From: cinap_lenrek <cinap_lenrek@felloff.net>
Date: Sat, 13 Jan 2018 11:41:37 +0100
Subject: [PATCH] ether79c970: dont disable promisc mode when multicast table
 is not empty

---
 sys/src/9/pc/ether79c970.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sys/src/9/pc/ether79c970.c b/sys/src/9/pc/ether79c970.c
index 28698ec88..a0577f818 100644
--- a/sys/src/9/pc/ether79c970.c
+++ b/sys/src/9/pc/ether79c970.c
@@ -299,7 +299,7 @@ promiscuous(void* arg, int on)
 
 	ctlr->iow(ctlr, Rap, 15);
 	x = ctlr->ior(ctlr, Rdp) & ~Prom;
-	if(on)
+	if(on || ether->nmaddr > 0)
 		x |= Prom;
 	ctlr->iow(ctlr, Rdp, x);
 	ctlr->iow(ctlr, Rap, 0);
@@ -315,7 +315,8 @@ promiscuous(void* arg, int on)
 static void
 multicast(void* arg, uchar*, int)
 {
-	promiscuous(arg, 1);
+	Ether *ether = arg;
+	promiscuous(arg, ether->prom);
 }
 
 static void