diff mbox series

[PULL,11/18] lan9118: use inline net_crc32() and bitshift instead of compute_mcast_idx()

Message ID 1513908937-16034-12-git-send-email-jasowang@redhat.com
State New
Headers show
Series [PULL,01/18] e1000, e1000e: Move per-packet TX offload flags out of context state | expand

Commit Message

Jason Wang Dec. 22, 2017, 2:15 a.m. UTC 
From: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>

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 mbox series

Patch

diff --git a/hw/net/lan9118.c b/hw/net/lan9118.c
index 3db8937..b9032da 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 {