From 3d0f4da104a2d9a73e017e121f1f25f5964e494e Mon Sep 17 00:00:00 2001
From: cinap_lenrek <cinap_lenrek@felloff.net>
Date: Sun, 11 Feb 2018 19:51:23 +0100
Subject: [PATCH] ethersink: provide promisc and multicast functions for v6,
 set out queue limit to 0 on attach, add to pc64 config

---
 sys/src/9/pc64/pc64        |  2 +-
 sys/src/9/port/ethersink.c | 25 +++++++++++++++++++------
 2 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/sys/src/9/pc64/pc64 b/sys/src/9/pc64/pc64
index 73dfc4c33..07cd66172 100644
--- a/sys/src/9/pc64/pc64
+++ b/sys/src/9/pc64/pc64
@@ -68,7 +68,7 @@ link
 #	ethervgbe	pci ethermii
 #	ethervt6102	pci ethermii
 #	ethervt6105m	pci ethermii
-#	ethersink
+	ethersink
 #	ethersmc	devi82365 cis
 	etheryuk	pci
 #	etherwavelan	wavelan devi82365 cis pci
diff --git a/sys/src/9/port/ethersink.c b/sys/src/9/port/ethersink.c
index a005af3a8..aa62d3719 100644
--- a/sys/src/9/port/ethersink.c
+++ b/sys/src/9/port/ethersink.c
@@ -33,22 +33,35 @@ ctl(Ether *ether, void *buf, long n)
 }
 
 static void
-nop(Ether*)
+attach(Ether *ether)
+{
+	/* silently discard output */
+	qnoblock(ether->oq, 1);
+	qsetlimit(ether->oq, 0);
+}
+
+static void
+multicast(void *, uchar*, int)
+{
+}
+
+static void
+promiscuous(void *, int)
 {
 }
 
 static int
 reset(Ether* ether)
 {
+	static uchar zeros[Eaddrlen];
+
 	if(ether->type==nil)
 		return -1;
 	ether->mbps = 1000;
-	ether->attach = nop;
-	ether->transmit = nop;
-	ether->ifstat = nil;
+	ether->attach = attach;
+	ether->multicast = multicast;
+	ether->promiscuous = promiscuous;
 	ether->ctl = ctl;
-	ether->promiscuous = nil;
-	ether->multicast = nil;
 	ether->arg = ether;
 	return 0;
 }