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lan9118: fix multicast filtering

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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: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Aurelien Jarno 2012-06-10 23:18:44 +02:00
parent 7e9c7ffe9f
commit 449bc90e1f
1 changed files with 1 additions and 1 deletions
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2
hw/lan9118.c
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@ -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 {