Commit 449bc90e authored by Aurelien Jarno's avatar Aurelien Jarno
Browse files

lan9118: fix multicast filtering 



The lan9118 emulation tries to compute the multicast index by calling
directly the crc32() function from zlib, but fails to get the correct
result.

Use the common compute_mcast_idx() function instead, which gives the
correct result. This fixes IPv6 support.

Reviewed-by: default avatarPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: default avatarAurelien Jarno <aurelien@aurel32.net>
parent 7e9c7ffe

hw/lan9118.c

+1 −1
Original line number Diff line number Diff line
@@ -500,7 +500,7 @@ static int lan9118_filter(lan9118_state *s, const uint8_t *addr) 
        }

    } else {

        /* Hash matching  */

        hash = (crc32(~0, addr, 6) >> 26);

        hash = compute_mcast_idx(addr);

        if (hash & 0x20) {

            return (s->mac_hashh >> (hash & 0x1f)) & 1;

        } else {