| if_hme.c (147256) | if_hme.c (148654) |
|---|---|
| 1/*- 2 * Copyright (c) 1999 The NetBSD Foundation, Inc. 3 * Copyright (c) 2001-2003 Thomas Moestl <tmm@FreeBSD.org>. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to The NetBSD Foundation 7 * by Paul Kranenburg. 8 * --- 24 unchanged lines hidden (view full) --- 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 * 37 * from: NetBSD: hme.c,v 1.29 2002/05/05 03:02:38 thorpej Exp 38 */ 39 40#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 1999 The NetBSD Foundation, Inc. 3 * Copyright (c) 2001-2003 Thomas Moestl <tmm@FreeBSD.org>. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to The NetBSD Foundation 7 * by Paul Kranenburg. 8 * --- 24 unchanged lines hidden (view full) --- 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 * 37 * from: NetBSD: hme.c,v 1.29 2002/05/05 03:02:38 thorpej Exp 38 */ 39 40#include <sys/cdefs.h> |
| 41__FBSDID("$FreeBSD: head/sys/dev/hme/if_hme.c 147256 2005-06-10 16:49:24Z brooks $"); | 41__FBSDID("$FreeBSD: head/sys/dev/hme/if_hme.c 148654 2005-08-03 00:18:35Z rwatson $"); |
| 42 43/* 44 * HME Ethernet module driver. 45 * 46 * The HME is e.g. part of the PCIO PCI multi function device. 47 * It supports TX gathering and TX and RX checksum offloading. 48 * RX buffers must be aligned at a programmable offset modulo 16. We choose 2 49 * for this offset: mbuf clusters are usually on about 2^11 boundaries, 2 bytes --- 1624 unchanged lines hidden (view full) --- 1674 /* 1675 * Set up multicast address filter by passing all multicast addresses 1676 * through a crc generator, and then using the high order 6 bits as an 1677 * index into the 64 bit logical address filter. The high order bit 1678 * selects the word, while the rest of the bits select the bit within 1679 * the word. 1680 */ 1681 | 42 43/* 44 * HME Ethernet module driver. 45 * 46 * The HME is e.g. part of the PCIO PCI multi function device. 47 * It supports TX gathering and TX and RX checksum offloading. 48 * RX buffers must be aligned at a programmable offset modulo 16. We choose 2 49 * for this offset: mbuf clusters are usually on about 2^11 boundaries, 2 bytes --- 1624 unchanged lines hidden (view full) --- 1674 /* 1675 * Set up multicast address filter by passing all multicast addresses 1676 * through a crc generator, and then using the high order 6 bits as an 1677 * index into the 64 bit logical address filter. The high order bit 1678 * selects the word, while the rest of the bits select the bit within 1679 * the word. 1680 */ 1681 |
| 1682 IF_ADDR_LOCK(sc->sc_ifp); |
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| 1682 TAILQ_FOREACH(inm, &sc->sc_ifp->if_multiaddrs, ifma_link) { 1683 if (inm->ifma_addr->sa_family != AF_LINK) 1684 continue; 1685 crc = ether_crc32_le(LLADDR((struct sockaddr_dl *) 1686 inm->ifma_addr), ETHER_ADDR_LEN); 1687 1688 /* Just want the 6 most significant bits. */ 1689 crc >>= 26; 1690 1691 /* Set the corresponding bit in the filter. */ 1692 hash[crc >> 4] |= 1 << (crc & 0xf); 1693 } | 1683 TAILQ_FOREACH(inm, &sc->sc_ifp->if_multiaddrs, ifma_link) { 1684 if (inm->ifma_addr->sa_family != AF_LINK) 1685 continue; 1686 crc = ether_crc32_le(LLADDR((struct sockaddr_dl *) 1687 inm->ifma_addr), ETHER_ADDR_LEN); 1688 1689 /* Just want the 6 most significant bits. */ 1690 crc >>= 26; 1691 1692 /* Set the corresponding bit in the filter. */ 1693 hash[crc >> 4] |= 1 << (crc & 0xf); 1694 } |
| 1695 IF_ADDR_UNLOCK(sc->sc_ifp); |
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| 1694 1695 ifp->if_flags &= ~IFF_ALLMULTI; 1696 1697chipit: 1698 /* Now load the hash table into the chip */ 1699 HME_MAC_WRITE_4(sc, HME_MACI_HASHTAB0, hash[0]); 1700 HME_MAC_WRITE_4(sc, HME_MACI_HASHTAB1, hash[1]); 1701 HME_MAC_WRITE_4(sc, HME_MACI_HASHTAB2, hash[2]); 1702 HME_MAC_WRITE_4(sc, HME_MACI_HASHTAB3, hash[3]); 1703 hme_mac_bitflip(sc, HME_MACI_RXCFG, macc, 0, 1704 macc & (HME_MAC_RXCFG_ENABLE | HME_MAC_RXCFG_HENABLE | 1705 HME_MAC_RXCFG_ME)); 1706} | 1696 1697 ifp->if_flags &= ~IFF_ALLMULTI; 1698 1699chipit: 1700 /* Now load the hash table into the chip */ 1701 HME_MAC_WRITE_4(sc, HME_MACI_HASHTAB0, hash[0]); 1702 HME_MAC_WRITE_4(sc, HME_MACI_HASHTAB1, hash[1]); 1703 HME_MAC_WRITE_4(sc, HME_MACI_HASHTAB2, hash[2]); 1704 HME_MAC_WRITE_4(sc, HME_MACI_HASHTAB3, hash[3]); 1705 hme_mac_bitflip(sc, HME_MACI_RXCFG, macc, 0, 1706 macc & (HME_MAC_RXCFG_ENABLE | HME_MAC_RXCFG_HENABLE | 1707 HME_MAC_RXCFG_ME)); 1708} |