diff options
Diffstat (limited to 'sys/arm')
| -rw-r--r-- | sys/arm/at91/if_ate.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/sys/arm/at91/if_ate.c b/sys/arm/at91/if_ate.c index ddf2761..d1af0f1 100644 --- a/sys/arm/at91/if_ate.c +++ b/sys/arm/at91/if_ate.c @@ -433,6 +433,16 @@ ate_load_rx_buf(void *arg, bus_dma_segment_t *segs, int nsegs, int error) bus_dmamap_sync(sc->rx_desc_tag, sc->rx_desc_map, BUS_DMASYNC_POSTWRITE); } +static uint32_t +ate_mac_hash(const uint8_t *buf) +{ + uint32_t index = 0; + for (int i = 0; i < 48; i++) { + index ^= ((buf[i >> 3] >> (i & 7)) & 1) << (i % 6); + } + return (index); +} + /* * Compute the multicast filter for this device. */ @@ -462,8 +472,8 @@ ate_setmcast(struct ate_softc *sc) TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { if (ifma->ifma_addr->sa_family != AF_LINK) continue; - index = ether_crc32_be(LLADDR((struct sockaddr_dl *) - ifma->ifma_addr), ETHER_ADDR_LEN) >> 26; + index = ate_mac_hash(LLADDR((struct sockaddr_dl *) + ifma->ifma_addr)); af[index >> 3] |= 1 << (index & 7); } if_maddr_runlock(ifp); |
