diff options
| author | Cédric Le Goater <clg@kaod.org> | 2018-06-08 13:15:32 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2018-06-08 13:15:32 +0100 |
| commit | 44effc1f99d0375fe5939f99bd65a5b6037f5f1c (patch) | |
| tree | 0a8a163d22e38c213f78d4e6a76f2ad170d4643e /hw | |
| parent | 8576b12df7abf29ddff0e69e1f9b6534e040cbcd (diff) | |
ftgmac100: fix multicast hash routine
Based on the multicast hash calculation of the FTGMAC100 Linux driver.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180530061711.23673-4-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/net/ftgmac100.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/hw/net/ftgmac100.c b/hw/net/ftgmac100.c index abf80655f2..8a7f274dc1 100644 --- a/hw/net/ftgmac100.c +++ b/hw/net/ftgmac100.c @@ -776,8 +776,8 @@ static int ftgmac100_filter(FTGMAC100State *s, const uint8_t *buf, size_t len) return 0; } - /* TODO: this does not seem to work for ftgmac100 */ - mcast_idx = net_crc32(buf, ETH_ALEN) >> 26; + mcast_idx = net_crc32_le(buf, ETH_ALEN); + mcast_idx = (~(mcast_idx >> 2)) & 0x3f; if (!(s->math[mcast_idx / 32] & (1 << (mcast_idx % 32)))) { return 0; } |