From eedeaee73ac47341efca4c06e3ccb0029ee9332f Mon Sep 17 00:00:00 2001
From: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Date: Fri, 15 Dec 2017 18:41:51 +0000
Subject: [PATCH] lan9118: use inline net_crc32() and bitshift instead of
compute_mcast_idx()
This makes it much easier to compare the multicast CRC calculation endian and
bitshift against the Linux driver implementation.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
hw/net/lan9118.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/hw/net/lan9118.c b/hw/net/lan9118.c
index 3db8937cac..b9032dac59 100644
--- a/hw/net/lan9118.c
+++ b/hw/net/lan9118.c
@@ -13,6 +13,7 @@
#include "qemu/osdep.h"
#include "hw/sysbus.h"
#include "net/net.h"
+#include "net/eth.h"
#include "hw/devices.h"
#include "sysemu/sysemu.h"
#include "hw/ptimer.h"
@@ -504,7 +505,7 @@ static int lan9118_filter(lan9118_state *s, const uint8_t *addr)
}
} else {
/* Hash matching */
- hash = compute_mcast_idx(addr);
+ hash = net_crc32(addr, ETH_ALEN) >> 26;
if (hash & 0x20) {
return (s->mac_hashh >> (hash & 0x1f)) & 1;
} else {
--
2.30.2