| if_pcn.c (129878) | if_pcn.c (130270) |
|---|---|
| 1/* 2 * Copyright (c) 2000 Berkeley Software Design, Inc. 3 * Copyright (c) 1997, 1998, 1999, 2000 4 * Bill Paul <wpaul@osd.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) 2000 Berkeley Software Design, Inc. 3 * Copyright (c) 1997, 1998, 1999, 2000 4 * Bill Paul <wpaul@osd.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/pci/if_pcn.c 129878 2004-05-30 20:00:41Z phk $"); | 35__FBSDID("$FreeBSD: head/sys/pci/if_pcn.c 130270 2004-06-09 14:34:04Z naddy $"); |
| 36 37/* 38 * AMD Am79c972 fast ethernet PCI NIC driver. Datatheets are available 39 * from http://www.amd.com. 40 * 41 * The AMD PCnet/PCI controllers are more advanced and functional 42 * versions of the venerable 7990 LANCE. The PCnet/PCI chips retain 43 * backwards compatibility with the LANCE and thus can be made --- 88 unchanged lines hidden (view full) --- 132static void pcn_ifmedia_sts (struct ifnet *, struct ifmediareq *); 133 134static int pcn_miibus_readreg (device_t, int, int); 135static int pcn_miibus_writereg (device_t, int, int, int); 136static void pcn_miibus_statchg (device_t); 137 138static void pcn_setfilt (struct ifnet *); 139static void pcn_setmulti (struct pcn_softc *); | 36 37/* 38 * AMD Am79c972 fast ethernet PCI NIC driver. Datatheets are available 39 * from http://www.amd.com. 40 * 41 * The AMD PCnet/PCI controllers are more advanced and functional 42 * versions of the venerable 7990 LANCE. The PCnet/PCI chips retain 43 * backwards compatibility with the LANCE and thus can be made --- 88 unchanged lines hidden (view full) --- 132static void pcn_ifmedia_sts (struct ifnet *, struct ifmediareq *); 133 134static int pcn_miibus_readreg (device_t, int, int); 135static int pcn_miibus_writereg (device_t, int, int, int); 136static void pcn_miibus_statchg (device_t); 137 138static void pcn_setfilt (struct ifnet *); 139static void pcn_setmulti (struct pcn_softc *); |
| 140static uint32_t pcn_mchash (const uint8_t *); | |
| 141static void pcn_reset (struct pcn_softc *); 142static int pcn_list_rx_init (struct pcn_softc *); 143static int pcn_list_tx_init (struct pcn_softc *); 144 145#ifdef PCN_USEIOSPACE 146#define PCN_RES SYS_RES_IOPORT 147#define PCN_RID PCN_PCI_LOIO 148#else --- 153 unchanged lines hidden (view full) --- 302 PCN_BCR_SETBIT(sc, PCN_BCR_DUPLEX, PCN_DUPLEX_FDEN); 303 } else { 304 PCN_BCR_CLRBIT(sc, PCN_BCR_DUPLEX, PCN_DUPLEX_FDEN); 305 } 306 307 return; 308} 309 | 140static void pcn_reset (struct pcn_softc *); 141static int pcn_list_rx_init (struct pcn_softc *); 142static int pcn_list_tx_init (struct pcn_softc *); 143 144#ifdef PCN_USEIOSPACE 145#define PCN_RES SYS_RES_IOPORT 146#define PCN_RID PCN_PCI_LOIO 147#else --- 153 unchanged lines hidden (view full) --- 301 PCN_BCR_SETBIT(sc, PCN_BCR_DUPLEX, PCN_DUPLEX_FDEN); 302 } else { 303 PCN_BCR_CLRBIT(sc, PCN_BCR_DUPLEX, PCN_DUPLEX_FDEN); 304 } 305 306 return; 307} 308 |
| 310#define DC_POLY 0xEDB88320 311 312static u_int32_t 313pcn_mchash(addr) 314 const uint8_t *addr; 315{ 316 uint32_t crc; 317 int idx, bit; 318 uint8_t data; 319 320 /* Compute CRC for the address value. */ 321 crc = 0xFFFFFFFF; /* initial value */ 322 323 for (idx = 0; idx < 6; idx++) { 324 for (data = *addr++, bit = 0; bit < 8; bit++, data >>= 1) 325 crc = (crc >> 1) ^ (((crc ^ data) & 1) ? DC_POLY : 0); 326 } 327 328 return ((crc >> 26) & 0x3F); 329} 330 | |
| 331static void 332pcn_setmulti(sc) 333 struct pcn_softc *sc; 334{ 335 struct ifnet *ifp; 336 struct ifmultiaddr *ifma; 337 u_int32_t h, i; 338 u_int16_t hashes[4] = { 0, 0, 0, 0 }; --- 12 unchanged lines hidden (view full) --- 351 /* first, zot all the existing hash bits */ 352 for (i = 0; i < 4; i++) 353 pcn_csr_write(sc, PCN_CSR_MAR0 + i, 0); 354 355 /* now program new ones */ 356 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 357 if (ifma->ifma_addr->sa_family != AF_LINK) 358 continue; | 309static void 310pcn_setmulti(sc) 311 struct pcn_softc *sc; 312{ 313 struct ifnet *ifp; 314 struct ifmultiaddr *ifma; 315 u_int32_t h, i; 316 u_int16_t hashes[4] = { 0, 0, 0, 0 }; --- 12 unchanged lines hidden (view full) --- 329 /* first, zot all the existing hash bits */ 330 for (i = 0; i < 4; i++) 331 pcn_csr_write(sc, PCN_CSR_MAR0 + i, 0); 332 333 /* now program new ones */ 334 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 335 if (ifma->ifma_addr->sa_family != AF_LINK) 336 continue; |
| 359 h = pcn_mchash(LLADDR((struct sockaddr_dl *)ifma->ifma_addr)); | 337 h = ether_crc32_le(LLADDR((struct sockaddr_dl *) 338 ifma->ifma_addr), ETHER_ADDR_LEN) >> 26; |
| 360 hashes[h >> 4] |= 1 << (h & 0xF); 361 } 362 363 for (i = 0; i < 4; i++) 364 pcn_csr_write(sc, PCN_CSR_MAR0 + i, hashes[i]); 365 366 PCN_CSR_CLRBIT(sc, PCN_CSR_EXTCTL1, PCN_EXTCTL1_SPND); 367 --- 1071 unchanged lines hidden --- | 339 hashes[h >> 4] |= 1 << (h & 0xF); 340 } 341 342 for (i = 0; i < 4; i++) 343 pcn_csr_write(sc, PCN_CSR_MAR0 + i, hashes[i]); 344 345 PCN_CSR_CLRBIT(sc, PCN_CSR_EXTCTL1, PCN_EXTCTL1_SPND); 346 --- 1071 unchanged lines hidden --- |