Date: Sat, 13 Mar 2010 16:37:17 +0000 (UTC) From: Bernd Walter <ticso@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r205124 - stable/8/sys/arm/at91 Message-ID: <201003131637.o2DGbHU0073760@svn.freebsd.org>
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Author: ticso Date: Sat Mar 13 16:37:17 2010 New Revision: 205124 URL: http://svn.freebsd.org/changeset/base/205124 Log: MFC 204462,204463,204476: fix multicast hashes Modified: stable/8/sys/arm/at91/if_ate.c Directory Properties: stable/8/sys/ (props changed) stable/8/sys/amd64/include/xen/ (props changed) stable/8/sys/cddl/contrib/opensolaris/ (props changed) stable/8/sys/contrib/dev/acpica/ (props changed) stable/8/sys/contrib/pf/ (props changed) stable/8/sys/dev/xen/xenpci/ (props changed) Modified: stable/8/sys/arm/at91/if_ate.c ============================================================================== --- stable/8/sys/arm/at91/if_ate.c Sat Mar 13 16:15:15 2010 (r205123) +++ stable/8/sys/arm/at91/if_ate.c Sat Mar 13 16:37:17 2010 (r205124) @@ -383,6 +383,16 @@ ate_load_rx_buf(void *arg, bus_dma_segme bus_dmamap_sync(sc->rxtag, sc->rx_map[i], BUS_DMASYNC_PREREAD); } +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 using the standard * algorithm. I wonder why this isn't in ether somewhere as a lot @@ -417,8 +427,8 @@ 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);
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