| if_nge.c (129879) | if_nge.c (130270) |
|---|---|
| 1/* 2 * Copyright (c) 2001 Wind River Systems 3 * Copyright (c) 1997, 1998, 1999, 2000, 2001 4 * Bill Paul <wpaul@bsdi.com>. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: --- 18 unchanged lines hidden (view full) --- 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 31 * THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34#include <sys/cdefs.h> | 1/* 2 * Copyright (c) 2001 Wind River Systems 3 * Copyright (c) 1997, 1998, 1999, 2000, 2001 4 * Bill Paul <wpaul@bsdi.com>. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: --- 18 unchanged lines hidden (view full) --- 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 31 * THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34#include <sys/cdefs.h> |
| 35__FBSDID("$FreeBSD: head/sys/dev/nge/if_nge.c 129879 2004-05-30 20:08:47Z phk $"); | 35__FBSDID("$FreeBSD: head/sys/dev/nge/if_nge.c 130270 2004-06-09 14:34:04Z naddy $"); |
| 36 37/* 38 * National Semiconductor DP83820/DP83821 gigabit ethernet driver 39 * for FreeBSD. Datasheets are available from: 40 * 41 * http://www.national.com/ds/DP/DP83820.pdf 42 * http://www.national.com/ds/DP/DP83821.pdf 43 * --- 136 unchanged lines hidden (view full) --- 180static int nge_mii_readreg(struct nge_softc *, struct nge_mii_frame *); 181static int nge_mii_writereg(struct nge_softc *, struct nge_mii_frame *); 182 183static int nge_miibus_readreg(device_t, int, int); 184static int nge_miibus_writereg(device_t, int, int, int); 185static void nge_miibus_statchg(device_t); 186 187static void nge_setmulti(struct nge_softc *); | 36 37/* 38 * National Semiconductor DP83820/DP83821 gigabit ethernet driver 39 * for FreeBSD. Datasheets are available from: 40 * 41 * http://www.national.com/ds/DP/DP83820.pdf 42 * http://www.national.com/ds/DP/DP83821.pdf 43 * --- 136 unchanged lines hidden (view full) --- 180static int nge_mii_readreg(struct nge_softc *, struct nge_mii_frame *); 181static int nge_mii_writereg(struct nge_softc *, struct nge_mii_frame *); 182 183static int nge_miibus_readreg(device_t, int, int); 184static int nge_miibus_writereg(device_t, int, int, int); 185static void nge_miibus_statchg(device_t); 186 187static void nge_setmulti(struct nge_softc *); |
| 188static uint32_t nge_mchash(const uint8_t *); | |
| 189static void nge_reset(struct nge_softc *); 190static int nge_list_rx_init(struct nge_softc *); 191static int nge_list_tx_init(struct nge_softc *); 192 193#ifdef NGE_USEIOSPACE 194#define NGE_RES SYS_RES_IOPORT 195#define NGE_RID NGE_PCI_LOIO 196#else --- 470 unchanged lines hidden (view full) --- 667 NGE_SETBIT(sc, NGE_CFG, NGE_CFG_MODE_1000); 668 } else { 669 NGE_CLRBIT(sc, NGE_CFG, NGE_CFG_MODE_1000); 670 } 671 } 672 return; 673} 674 | 188static void nge_reset(struct nge_softc *); 189static int nge_list_rx_init(struct nge_softc *); 190static int nge_list_tx_init(struct nge_softc *); 191 192#ifdef NGE_USEIOSPACE 193#define NGE_RES SYS_RES_IOPORT 194#define NGE_RID NGE_PCI_LOIO 195#else --- 470 unchanged lines hidden (view full) --- 666 NGE_SETBIT(sc, NGE_CFG, NGE_CFG_MODE_1000); 667 } else { 668 NGE_CLRBIT(sc, NGE_CFG, NGE_CFG_MODE_1000); 669 } 670 } 671 return; 672} 673 |
| 675static u_int32_t 676nge_mchash(addr) 677 const uint8_t *addr; 678{ 679 uint32_t crc, carry; 680 int idx, bit; 681 uint8_t data; 682 683 /* Compute CRC for the address value. */ 684 crc = 0xFFFFFFFF; /* initial value */ 685 686 for (idx = 0; idx < 6; idx++) { 687 for (data = *addr++, bit = 0; bit < 8; bit++, data >>= 1) { 688 carry = ((crc & 0x80000000) ? 1 : 0) ^ (data & 0x01); 689 crc <<= 1; 690 if (carry) 691 crc = (crc ^ 0x04c11db6) | carry; 692 } 693 } 694 695 /* 696 * return the filter bit position 697 */ 698 699 return((crc >> 21) & 0x00000FFF); 700} 701 | |
| 702static void 703nge_setmulti(sc) 704 struct nge_softc *sc; 705{ 706 struct ifnet *ifp; 707 struct ifmultiaddr *ifma; 708 u_int32_t h = 0, i, filtsave; 709 int bit, index; --- 29 unchanged lines hidden (view full) --- 739 * From the 11 bits returned by the crc routine, the top 7 740 * bits represent the 16-bit word in the mcast hash table 741 * that needs to be updated, and the lower 4 bits represent 742 * which bit within that byte needs to be set. 743 */ 744 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 745 if (ifma->ifma_addr->sa_family != AF_LINK) 746 continue; | 674static void 675nge_setmulti(sc) 676 struct nge_softc *sc; 677{ 678 struct ifnet *ifp; 679 struct ifmultiaddr *ifma; 680 u_int32_t h = 0, i, filtsave; 681 int bit, index; --- 29 unchanged lines hidden (view full) --- 711 * From the 11 bits returned by the crc routine, the top 7 712 * bits represent the 16-bit word in the mcast hash table 713 * that needs to be updated, and the lower 4 bits represent 714 * which bit within that byte needs to be set. 715 */ 716 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 717 if (ifma->ifma_addr->sa_family != AF_LINK) 718 continue; |
| 747 h = nge_mchash(LLADDR((struct sockaddr_dl *)ifma->ifma_addr)); | 719 h = ether_crc32_be(LLADDR((struct sockaddr_dl *) 720 ifma->ifma_addr), ETHER_ADDR_LEN) >> 21; |
| 748 index = (h >> 4) & 0x7F; 749 bit = h & 0xF; 750 CSR_WRITE_4(sc, NGE_RXFILT_CTL, 751 NGE_FILTADDR_MCAST_LO + (index * 2)); 752 NGE_SETBIT(sc, NGE_RXFILT_DATA, (1 << bit)); 753 } 754 755 CSR_WRITE_4(sc, NGE_RXFILT_CTL, filtsave); --- 1533 unchanged lines hidden --- | 721 index = (h >> 4) & 0x7F; 722 bit = h & 0xF; 723 CSR_WRITE_4(sc, NGE_RXFILT_CTL, 724 NGE_FILTADDR_MCAST_LO + (index * 2)); 725 NGE_SETBIT(sc, NGE_RXFILT_DATA, (1 << bit)); 726 } 727 728 CSR_WRITE_4(sc, NGE_RXFILT_CTL, filtsave); --- 1533 unchanged lines hidden --- |