Blame 0116-lan9118-fix-multicast-filtering.patch
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From 0ea96930bcd85734da46de0cd44d1d0408cbb9be Mon Sep 17 00:00:00 2001
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From: Aurelien Jarno <aurelien@aurel32.net>
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Date: Sun, 10 Jun 2012 23:18:44 +0200
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Subject: [PATCH] lan9118: fix multicast filtering
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The lan9118 emulation tries to compute the multicast index by calling
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directly the crc32() function from zlib, but fails to get the correct
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result.
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Use the common compute_mcast_idx() function instead, which gives the
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correct result. This fixes IPv6 support.
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Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
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Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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(cherry picked from commit 449bc90e1f2e2fbafb64eb0c76d16c9352b0d2df)
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Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
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---
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hw/lan9118.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/hw/lan9118.c b/hw/lan9118.c
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index ff0a50b..ceaf96f 100644
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--- a/hw/lan9118.c
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+++ b/hw/lan9118.c
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@@ -500,7 +500,7 @@ static int lan9118_filter(lan9118_state *s, const uint8_t *addr)
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}
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} else {
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/* Hash matching */
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- hash = (crc32(~0, addr, 6) >> 26);
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+ hash = compute_mcast_idx(addr);
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if (hash & 0x20) {
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return (s->mac_hashh >> (hash & 0x1f)) & 1;
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} else {
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--
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1.7.12.1
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