| if_xe.c (122170) | if_xe.c (122625) |
|---|---|
| 1/*- 2 * Copyright (c) 1998, 1999, 2003 Scott Mitchell 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 8 unchanged lines hidden (view full) --- 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. | 1/*- 2 * Copyright (c) 1998, 1999, 2003 Scott Mitchell 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 8 unchanged lines hidden (view full) --- 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. |
| 25 * 26 * $Id: if_xe.c,v 1.20 1999/06/13 19:17:40 scott Exp $ | |
| 27 */ | 25 */ |
| 28 29#include <sys/cdefs.h> 30__FBSDID("$FreeBSD: head/sys/dev/xe/if_xe.c 122170 2003-11-06 08:54:43Z rsm $"); 31 | |
| 32/* 33 * Portions of this software were derived from Werner Koch's xirc2ps driver 34 * for Linux under the terms of the following license (from v1.30 of the 35 * xirc2ps driver): 36 * 37 * Copyright (c) 1997 by Werner Koch (dd9jn) 38 * 39 * Redistribution and use in source and binary forms, with or without --- 17 unchanged lines hidden (view full) --- 57 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 58 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 60 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 61 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 62 * OF THE POSSIBILITY OF SUCH DAMAGE. 63 */ 64 | 26/* 27 * Portions of this software were derived from Werner Koch's xirc2ps driver 28 * for Linux under the terms of the following license (from v1.30 of the 29 * xirc2ps driver): 30 * 31 * Copyright (c) 1997 by Werner Koch (dd9jn) 32 * 33 * Redistribution and use in source and binary forms, with or without --- 17 unchanged lines hidden (view full) --- 51 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 52 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 53 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 54 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 55 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 56 * OF THE POSSIBILITY OF SUCH DAMAGE. 57 */ 58 |
| 59#include <sys/cdefs.h> 60__FBSDID("$FreeBSD: head/sys/dev/xe/if_xe.c 122625 2003-11-13 20:55:53Z obrien $"); 61 |
|
| 65/* 66 * FreeBSD device driver for Xircom CreditCard PCMCIA Ethernet adapters. The 67 * following cards are currently known to work with the driver: 68 * Xircom CreditCard 10/100 (CE3) 69 * Xircom CreditCard Ethernet + Modem 28 (CEM28) 70 * Xircom CreditCard Ethernet 10/100 + Modem 56 (CEM56) 71 * Xircom RealPort Ethernet 10 72 * Xircom RealPort Ethernet 10/100 --- 88 unchanged lines hidden (view full) --- 161static void xe_media_status (struct ifnet *ifp, struct ifmediareq *mrp); 162static timeout_t xe_setmedia; 163static void xe_reset (struct xe_softc *scp); 164static void xe_stop (struct xe_softc *scp); 165static void xe_enable_intr (struct xe_softc *scp); 166static void xe_disable_intr (struct xe_softc *scp); 167static void xe_set_multicast (struct xe_softc *scp); 168static void xe_set_addr (struct xe_softc *scp, u_int8_t* addr, unsigned idx); | 62/* 63 * FreeBSD device driver for Xircom CreditCard PCMCIA Ethernet adapters. The 64 * following cards are currently known to work with the driver: 65 * Xircom CreditCard 10/100 (CE3) 66 * Xircom CreditCard Ethernet + Modem 28 (CEM28) 67 * Xircom CreditCard Ethernet 10/100 + Modem 56 (CEM56) 68 * Xircom RealPort Ethernet 10 69 * Xircom RealPort Ethernet 10/100 --- 88 unchanged lines hidden (view full) --- 158static void xe_media_status (struct ifnet *ifp, struct ifmediareq *mrp); 159static timeout_t xe_setmedia; 160static void xe_reset (struct xe_softc *scp); 161static void xe_stop (struct xe_softc *scp); 162static void xe_enable_intr (struct xe_softc *scp); 163static void xe_disable_intr (struct xe_softc *scp); 164static void xe_set_multicast (struct xe_softc *scp); 165static void xe_set_addr (struct xe_softc *scp, u_int8_t* addr, unsigned idx); |
| 169static void xe_set_hash (struct xe_softc *scp, u_int8_t* addr); | 166static void xe_mchash (struct xe_softc *scp, caddr_t addr); |
| 170static int xe_pio_write_packet (struct xe_softc *scp, struct mbuf *mbp); 171 172/* 173 * MII functions 174 */ 175static void xe_mii_sync (struct xe_softc *scp); 176static int xe_mii_init (struct xe_softc *scp); 177static void xe_mii_send (struct xe_softc *scp, u_int32_t bits, int cnt); --- 1119 unchanged lines hidden (view full) --- 1297 count++; 1298 1299 if (count < 10) 1300 /* First 9 use Individual Addresses for exact matching */ 1301 xe_set_addr(scp, LLADDR((struct sockaddr_dl *)maddr->ifma_addr), count); 1302 else 1303 if (scp->mohawk) 1304 /* Use hash filter on Mohawk and Dingo */ | 167static int xe_pio_write_packet (struct xe_softc *scp, struct mbuf *mbp); 168 169/* 170 * MII functions 171 */ 172static void xe_mii_sync (struct xe_softc *scp); 173static int xe_mii_init (struct xe_softc *scp); 174static void xe_mii_send (struct xe_softc *scp, u_int32_t bits, int cnt); --- 1119 unchanged lines hidden (view full) --- 1294 count++; 1295 1296 if (count < 10) 1297 /* First 9 use Individual Addresses for exact matching */ 1298 xe_set_addr(scp, LLADDR((struct sockaddr_dl *)maddr->ifma_addr), count); 1299 else 1300 if (scp->mohawk) 1301 /* Use hash filter on Mohawk and Dingo */ |
| 1305 xe_set_hash(scp, LLADDR((struct sockaddr_dl *)maddr->ifma_addr)); | 1302 xe_mchash(scp, LLADDR((struct sockaddr_dl *)maddr->ifma_addr)); |
| 1306 else 1307 /* Nowhere else to put them on CE2 */ 1308 break; 1309 } 1310 1311 DEVPRINTF(2, (scp->dev, "set_multicast: count = %u\n", count)); 1312 1313 /* Now do some cleanup and enable multicast handling as needed */ --- 96 unchanged lines hidden (view full) --- 1410 1411 1412/* 1413 * Set the appropriate bit in the multicast hash table for the supplied 1414 * Ethernet multicast address addr. Assumes that addr is really a multicast 1415 * address. 1416 */ 1417static void | 1303 else 1304 /* Nowhere else to put them on CE2 */ 1305 break; 1306 } 1307 1308 DEVPRINTF(2, (scp->dev, "set_multicast: count = %u\n", count)); 1309 1310 /* Now do some cleanup and enable multicast handling as needed */ --- 96 unchanged lines hidden (view full) --- 1407 1408 1409/* 1410 * Set the appropriate bit in the multicast hash table for the supplied 1411 * Ethernet multicast address addr. Assumes that addr is really a multicast 1412 * address. 1413 */ 1414static void |
| 1418xe_set_hash(struct xe_softc* scp, u_int8_t* addr) { | 1415xe_mchash(struct xe_softc* scp, caddr_t addr) { |
| 1419 u_int32_t crc = 0xffffffff; | 1416 u_int32_t crc = 0xffffffff; |
| 1420 u_int8_t bit, byte, crc31, idx; 1421 unsigned i, j; | 1417 int idx, bit; 1418 u_int8_t carry, byte, data, crc31, hash; |
| 1422 1423 /* Compute CRC of the address -- standard Ethernet CRC function */ | 1419 1420 /* Compute CRC of the address -- standard Ethernet CRC function */ |
| 1424 for (i = 0; i < 6; i++) { 1425 byte = addr[i]; 1426 for (j = 1; j <= 8; j++) { | 1421 for (data = *addr++, idx = 0; idx < 6; idx++, data >>= 1) { 1422 for (bit = 1; bit <= 8; bit++) { |
| 1427 if (crc & 0x80000000) 1428 crc31 = 0x01; 1429 else 1430 crc31 = 0; | 1423 if (crc & 0x80000000) 1424 crc31 = 0x01; 1425 else 1426 crc31 = 0; |
| 1431 bit = crc31 ^ (byte & 0x01); | 1427 carry = crc31 ^ (data & 0x01); |
| 1432 crc <<= 1; | 1428 crc <<= 1; |
| 1433 byte >>= 1; 1434 if (bit) 1435 crc = (crc ^ XE_CRC_POLY)|1; | 1429 data >>= 1; 1430 crc = (crc ^ XE_CRC_POLY) | (carry|0x1); |
| 1436 } 1437 } 1438 1439 DEVPRINTF(3, (scp->dev, "set_hash: CRC = 0x%08x\n", crc)); 1440 | 1431 } 1432 } 1433 1434 DEVPRINTF(3, (scp->dev, "set_hash: CRC = 0x%08x\n", crc)); 1435 |
| 1441 /* Hash table index = 6 msbs of CRC, reversed */ 1442 for (i = 0, idx = 0; i < 6; i++) { 1443 idx >>= 1; | 1436 /* 1437 * Convert a CRC into an index into the multicast hash table. What we do is 1438 * take the most-significant 6 bits of the CRC, reverse them, and use that as 1439 * the bit number in the hash table. Bits 5:3 of the result give the byte 1440 * within the table (0-7); bits 2:0 give the bit number within that byte (also 1441 * 0-7), ie. the number of shifts needed to get it into the lsb position. 1442 */ 1443 for (idx = 0, hash = 0; idx < 6; idx++) { 1444 hash >>= 1; |
| 1444 if (crc & 0x80000000) { | 1445 if (crc & 0x80000000) { |
| 1445 idx |= 0x20; | 1446 hash |= 0x20; |
| 1446 } 1447 crc <<= 1; 1448 } 1449 | 1447 } 1448 crc <<= 1; 1449 } 1450 |
| 1450 /* Top 3 bits of idx give register - 8, bottom 3 give bit within register */ 1451 byte = idx >> 3 | 0x08; 1452 bit = 0x01 << (idx & 0x07); | 1451 /* Top 3 bits of hash give register - 8, bottom 3 give bit within register */ 1452 byte = hash >> 3 | 0x08; 1453 carry = 0x01 << (hash & 0x07); |
| 1453 | 1454 |
| 1454 DEVPRINTF(3, (scp->dev, "set_hash: idx = 0x%02x, byte = 0x%02x, bit = 0x%02x\n", idx, byte, bit)); | 1455 DEVPRINTF(3, (scp->dev, "set_hash: hash = 0x%02x, byte = 0x%02x, carry = 0x%02x\n", hash, byte, carry)); |
| 1455 1456 XE_SELECT_PAGE(0x58); | 1456 1457 XE_SELECT_PAGE(0x58); |
| 1457 XE_OUTB(byte, XE_INB(byte) | bit); | 1458 XE_OUTB(byte, XE_INB(byte) | carry); |
| 1458} 1459 1460 1461/* 1462 * Write an outgoing packet to the card using programmed I/O. 1463 */ 1464static int 1465xe_pio_write_packet(struct xe_softc *scp, struct mbuf *mbp) { --- 537 unchanged lines hidden --- | 1459} 1460 1461 1462/* 1463 * Write an outgoing packet to the card using programmed I/O. 1464 */ 1465static int 1466xe_pio_write_packet(struct xe_softc *scp, struct mbuf *mbp) { --- 537 unchanged lines hidden --- |