| if_my.c (121816) | if_my.c (122625) |
|---|---|
| 1/*- 2 * Written by: yen_cw@myson.com.tw 3 * Copyright (c) 2002 Myson Technology Inc. 4 * 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: --- 14 unchanged lines hidden (view full) --- 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * Myson fast ethernet PCI NIC driver, available at: http://www.myson.com.tw/ 28 */ 29 30#include <sys/cdefs.h> | 1/*- 2 * Written by: yen_cw@myson.com.tw 3 * Copyright (c) 2002 Myson Technology Inc. 4 * 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: --- 14 unchanged lines hidden (view full) --- 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * Myson fast ethernet PCI NIC driver, available at: http://www.myson.com.tw/ 28 */ 29 30#include <sys/cdefs.h> |
| 31__FBSDID("$FreeBSD: head/sys/dev/my/if_my.c 121816 2003-10-31 18:32:15Z brooks $"); | 31__FBSDID("$FreeBSD: head/sys/dev/my/if_my.c 122625 2003-11-13 20:55:53Z obrien $"); |
| 32 33#include <sys/param.h> 34#include <sys/systm.h> 35#include <sys/sockio.h> 36#include <sys/mbuf.h> 37#include <sys/malloc.h> 38#include <sys/kernel.h> 39#include <sys/socket.h> --- 97 unchanged lines hidden (view full) --- 137static void my_ifmedia_sts(struct ifnet *, struct ifmediareq *); 138static u_int16_t my_phy_readreg(struct my_softc *, int); 139static void my_phy_writereg(struct my_softc *, int, int); 140static void my_autoneg_xmit(struct my_softc *); 141static void my_autoneg_mii(struct my_softc *, int, int); 142static void my_setmode_mii(struct my_softc *, int); 143static void my_getmode_mii(struct my_softc *); 144static void my_setcfg(struct my_softc *, int); | 32 33#include <sys/param.h> 34#include <sys/systm.h> 35#include <sys/sockio.h> 36#include <sys/mbuf.h> 37#include <sys/malloc.h> 38#include <sys/kernel.h> 39#include <sys/socket.h> --- 97 unchanged lines hidden (view full) --- 137static void my_ifmedia_sts(struct ifnet *, struct ifmediareq *); 138static u_int16_t my_phy_readreg(struct my_softc *, int); 139static void my_phy_writereg(struct my_softc *, int, int); 140static void my_autoneg_xmit(struct my_softc *); 141static void my_autoneg_mii(struct my_softc *, int, int); 142static void my_setmode_mii(struct my_softc *, int); 143static void my_getmode_mii(struct my_softc *); 144static void my_setcfg(struct my_softc *, int); |
| 145static u_int8_t my_calchash(caddr_t); | 145static u_int32_t my_mchash(caddr_t); |
| 146static void my_setmulti(struct my_softc *); 147static void my_reset(struct my_softc *); 148static int my_list_rx_init(struct my_softc *); 149static int my_list_tx_init(struct my_softc *); 150static long my_send_cmd_to_phy(struct my_softc *, int, int); 151 152#define MY_SETBIT(sc, reg, x) CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) | (x)) 153#define MY_CLRBIT(sc, reg, x) CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) & ~(x)) --- 154 unchanged lines hidden (view full) --- 308 /* low MDC */ 309 miir &= ~MY_MASK_MIIR_MII_MDC; 310 CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 311 } 312 MY_UNLOCK(sc); 313 return; 314} 315 | 146static void my_setmulti(struct my_softc *); 147static void my_reset(struct my_softc *); 148static int my_list_rx_init(struct my_softc *); 149static int my_list_tx_init(struct my_softc *); 150static long my_send_cmd_to_phy(struct my_softc *, int, int); 151 152#define MY_SETBIT(sc, reg, x) CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) | (x)) 153#define MY_CLRBIT(sc, reg, x) CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) & ~(x)) --- 154 unchanged lines hidden (view full) --- 308 /* low MDC */ 309 miir &= ~MY_MASK_MIIR_MII_MDC; 310 CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 311 } 312 MY_UNLOCK(sc); 313 return; 314} 315 |
| 316static u_int8_t 317my_calchash(caddr_t addr) | 316static u_int32_t 317my_mchash(caddr_t addr) |
| 318{ 319 u_int32_t crc, carry; | 318{ 319 u_int32_t crc, carry; |
| 320 int i, j; 321 u_int8_t c; | 320 int idx, bit; 321 u_int8_t data; |
| 322 323 /* Compute CRC for the address value. */ 324 crc = 0xFFFFFFFF; /* initial value */ 325 | 322 323 /* Compute CRC for the address value. */ 324 crc = 0xFFFFFFFF; /* initial value */ 325 |
| 326 for (i = 0; i < 6; i++) { 327 c = *(addr + i); 328 for (j = 0; j < 8; j++) { 329 carry = ((crc & 0x80000000) ? 1 : 0) ^ (c & 0x01); | 326 for (idx = 0; idx < 6; idx++) { 327 for (data = *addr++, bit = 0; bit < 8; bit++, data >>= 1) { 328 carry = ((crc & 0x80000000) ? 1 : 0) ^ (data & 0x01); |
| 330 crc <<= 1; | 329 crc <<= 1; |
| 331 c >>= 1; | |
| 332 if (carry) 333 crc = (crc ^ 0x04c11db6) | carry; 334 } 335 } 336 337 /* 338 * return the filter bit position Note: I arrived at the following 339 * nonsense through experimentation. It's not the usual way to --- 36 unchanged lines hidden (view full) --- 376 /* first, zot all the existing hash bits */ 377 CSR_WRITE_4(sc, MY_MAR0, 0); 378 CSR_WRITE_4(sc, MY_MAR1, 0); 379 380 /* now program new ones */ 381 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 382 if (ifma->ifma_addr->sa_family != AF_LINK) 383 continue; | 330 if (carry) 331 crc = (crc ^ 0x04c11db6) | carry; 332 } 333 } 334 335 /* 336 * return the filter bit position Note: I arrived at the following 337 * nonsense through experimentation. It's not the usual way to --- 36 unchanged lines hidden (view full) --- 374 /* first, zot all the existing hash bits */ 375 CSR_WRITE_4(sc, MY_MAR0, 0); 376 CSR_WRITE_4(sc, MY_MAR1, 0); 377 378 /* now program new ones */ 379 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 380 if (ifma->ifma_addr->sa_family != AF_LINK) 381 continue; |
| 384 h = my_calchash(LLADDR((struct sockaddr_dl *) ifma->ifma_addr)); | 382 h = my_mchash(LLADDR((struct sockaddr_dl *) ifma->ifma_addr)); |
| 385 if (h < 32) 386 hashes[0] |= (1 << h); 387 else 388 hashes[1] |= (1 << (h - 32)); 389 mcnt++; 390 } 391 392 if (mcnt) --- 1483 unchanged lines hidden --- | 383 if (h < 32) 384 hashes[0] |= (1 << h); 385 else 386 hashes[1] |= (1 << (h - 32)); 387 mcnt++; 388 } 389 390 if (mcnt) --- 1483 unchanged lines hidden --- |