diff options
Diffstat (limited to 'sys/dev/pci/if_rl.c')
| -rw-r--r-- | sys/dev/pci/if_rl.c | 2393 |
1 files changed, 2393 insertions, 0 deletions
diff --git a/sys/dev/pci/if_rl.c b/sys/dev/pci/if_rl.c new file mode 100644 index 00000000000..7460c1043cc --- /dev/null +++ b/sys/dev/pci/if_rl.c @@ -0,0 +1,2393 @@ +/* $OpenBSD: if_rl.c,v 1.1 1998/11/11 20:51:38 jason Exp $ */ + +/* + * Copyright (c) 1997, 1998 + * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Bill Paul. + * 4. Neither the name of the author nor the names of any co-contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF + * THE POSSIBILITY OF SUCH DAMAGE. + * + * $FreeBSD: if_rl.c,v 1.1 1998/10/18 16:24:30 wpaul Exp $ + */ + +/* + * RealTek 8129/8139 PCI NIC driver + * + * Supports several extremely cheap PCI 10/100 adapters based on + * the RealTek chipset. Datasheets can be obtained from + * www.realtek.com.tw. + * + * Written by Bill Paul <wpaul@ctr.columbia.edu> + * Electrical Engineering Department + * Columbia University, New York City + */ + +/* + * The RealTek 8139 PCI NIC redefines the meaning of 'low end.' This is + * probably the worst PCI ethernet controller ever made, with the possible + * exception of the FEAST chip made by SMC. The 8139 supports bus-master + * DMA, but it has a terrible interface that nullifies any performance + * gains that bus-master DMA usually offers. + * + * For transmission, the chip offers a series of four TX descriptor + * registers. Each transmit frame must be in a contiguous buffer, aligned + * on a doubleword (32-bit) boundary. This means we almost always have to + * do mbuf copies in order to transmit a frame, except in the unlikely + * case where a) the packet fits into a single mbuf, and b) the packet + * is 32-bit aligned within the mbuf's data area. The presence of only + * four descriptor registers means that we can never have more than four + * packets queued for transmission at any one time. + * + * Reception is not much better. The driver has to allocate a single large + * buffer area (up to 64K in size) into which the chip will DMA received + * frames. Because we don't know where within this region received packets + * will begin or end, we have no choice but to copy data from the buffer + * area into mbufs in order to pass the packets up to the higher protocol + * levels. + * + * It's impossible given this rotten design to really achieve decent + * performance at 100Mbps, unless you happen to have a 400Mhz PII or + * some equally overmuscled CPU to drive it. + * + * On the bright side, the 8139 does have a built-in PHY, although + * rather than using an MDIO serial interface like most other NICs, the + * PHY registers are directly accessible through the 8139's register + * space. The 8139 supports autonegotiation, as well as a 64-bit multicast + * filter. + * + * The 8129 chip is an older version of the 8139 that uses an external PHY + * chip. The 8129 has a serial MDIO interface for accessing the MII where + * the 8139 lets you directly access the on-board PHY registers. We need + * to select which interface to use depending on the chip type. + * + * Note: beware of trying to use the Linux RealTek driver as a reference + * for information about the RealTek chip. It contains several bogosities. + * It contains definitions for several undocumented registers which it + * claims are 'required for proper operation' yet it does not use these + * registers anywhere in the code. It also refers to some undocumented + * 'Twister tuning codes' which it doesn't use anywhere. It also contains + * bit definitions for several registers which are totally ignored: magic + * numbers are used instead, making the code hard to read. + */ + +#include "bpfilter.h" + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/sockio.h> +#include <sys/mbuf.h> +#include <sys/malloc.h> +#include <sys/kernel.h> +#include <sys/socket.h> +#ifdef __OpenBSD__ +#include <sys/device.h> +#endif + +#ifdef __FreeBSD__ +#include <net/if.h> +#include <net/if_arp.h> +#include <net/ethernet.h> +#endif + +#ifdef __OpenBSD__ +#include <net/if.h> +#include <net/if_dl.h> +#include <net/if_types.h> + +#ifdef INET +#include <netinet/in.h> +#include <netinet/in_systm.h> +#include <netinet/in_var.h> +#include <netinet/ip.h> +#include <netinet/if_ether.h> +#endif + +#endif + +#include <net/if_media.h> + +#if NBPFILTER > 0 +#include <net/bpf.h> +#endif +#include <net/if_media.h> + + +#include <vm/vm.h> /* for vtophys */ +#include <vm/pmap.h> /* for vtophys */ +#ifdef __FreeBSD__ +#include <machine/clock.h> /* for DELAY */ +#include <pci/pcireg.h> +#include <pci/pcivar.h> +#endif + +#ifdef __OpenBSD__ +#include <vm/vm_kern.h> +#include <vm/vm_extern.h> +#include <dev/pci/pcireg.h> +#include <dev/pci/pcivar.h> +#include <dev/pci/pcidevs.h> +#endif + +/* + * Default to using PIO access for this driver. On SMP systems, + * there appear to be problems with memory mapped mode: it looks like + * doing too many memory mapped access back to back in rapid succession + * can hang the bus. I'm inclined to blame this on crummy design/construction + * on the part of RealTek. Memory mapped mode does appear to work on + * uniprocessor systems though. + */ +#define RL_USEIOSPACE + +#ifdef __FreeBSD_ +#include <pci/if_rlreg.h> +#else +#include <dev/pci/if_rlreg.h> +#endif + +#if !defined(lint) && defined(__FreeBSD__) +static char rcsid[] = + "$FreeBSD: if_rl.c,v 1.1 1998/10/18 16:24:30 wpaul Exp $"; +#endif + +#ifdef __FreeBSD__ +/* + * Various supported device vendors/types and their names. + */ +static struct rl_type rl_devs[] = { + { RT_VENDORID, RT_DEVICEID_8129, + "RealTek 8129 10/100BaseTX" }, + { RT_VENDORID, RT_DEVICEID_8139, + "RealTek 8139 10/100BaseTX" }, + { RT_VENDORID_ALT, RT_DEVICEID_8139_ALT, + "RealTek 8139 10/100BaseTX" }, + { 0, 0, NULL } +}; +#endif + +/* + * Various supported PHY vendors/types and their names. Note that + * this driver will work with pretty much any MII-compliant PHY, + * so failure to positively identify the chip is not a fatal error. + */ + +static struct rl_type rl_phys[] = { + { TI_PHY_VENDORID, TI_PHY_10BT, "<TI ThunderLAN 10BT (internal)>" }, + { TI_PHY_VENDORID, TI_PHY_100VGPMI, "<TI TNETE211 100VG Any-LAN>" }, + { NS_PHY_VENDORID, NS_PHY_83840A, "<National Semiconductor DP83840A>"}, + { LEVEL1_PHY_VENDORID, LEVEL1_PHY_LXT970, "<Level 1 LXT970>" }, + { INTEL_PHY_VENDORID, INTEL_PHY_82555, "<Intel 82555>" }, + { SEEQ_PHY_VENDORID, SEEQ_PHY_80220, "<SEEQ 80220>" }, + { 0, 0, "<MII-compliant physical interface>" } +}; + +#ifdef __FreeBSD__ +static unsigned long rl_count = 0; +static char *rl_probe __P((pcici_t, pcidi_t)); +static void rl_attach __P((pcici_t, int)); +#endif + +#ifdef __OpenBSD__ + +#define bootverbose 1 +static int rl_probe __P((struct device *, void *, void *)); +static void rl_attach __P((struct device *, struct device *, void *)); +static int rl_intr __P((void *)); +static void rl_shutdown __P((void *)); +#endif + +static int rl_encap __P((struct rl_softc *, struct rl_chain *, + struct mbuf * )); + +static void rl_rxeof __P((struct rl_softc *)); +static void rl_txeof __P((struct rl_softc *)); +static void rl_txeoc __P((struct rl_softc *)); +#ifdef __FreeBSD__ +static void rl_intr __P((void *)); +#endif +static void rl_start __P((struct ifnet *)); +static int rl_ioctl __P((struct ifnet *, u_long, caddr_t)); +static void rl_init __P((void *)); +static void rl_stop __P((struct rl_softc *)); +static void rl_watchdog __P((struct ifnet *)); +#ifdef __FreeBSD__ +static void rl_shutdown __P((int, void *)); +#endif +static int rl_ifmedia_upd __P((struct ifnet *)); +static void rl_ifmedia_sts __P((struct ifnet *, struct ifmediareq *)); + +static void rl_eeprom_putbyte __P((struct rl_softc *, u_int8_t)); +static void rl_eeprom_getword __P((struct rl_softc *, u_int8_t, u_int16_t *)); +static void rl_read_eeprom __P((struct rl_softc *, caddr_t, + int, int, int)); +static void rl_mii_sync __P((struct rl_softc *)); +static void rl_mii_send __P((struct rl_softc *, u_int32_t, int)); +static int rl_mii_readreg __P((struct rl_softc *, struct rl_mii_frame *)); +static int rl_mii_writereg __P((struct rl_softc *, struct rl_mii_frame *)); + +static u_int16_t rl_phy_readreg __P((struct rl_softc *, int)); +static void rl_phy_writereg __P((struct rl_softc *, u_int16_t, u_int16_t)); + +static void rl_autoneg_xmit __P((struct rl_softc *)); +static void rl_autoneg_mii __P((struct rl_softc *, int, int)); +static void rl_setmode_mii __P((struct rl_softc *, int)); +static void rl_getmode_mii __P((struct rl_softc *)); +static u_int8_t rl_calchash __P((u_int8_t *)); +static void rl_setmulti __P((struct rl_softc *)); +static void rl_reset __P((struct rl_softc *)); +static int rl_list_tx_init __P((struct rl_softc *)); + +#define EE_SET(x) \ + CSR_WRITE_1(sc, RL_EECMD, \ + CSR_READ_1(sc, RL_EECMD) | x) + +#define EE_CLR(x) \ + CSR_WRITE_1(sc, RL_EECMD, \ + CSR_READ_1(sc, RL_EECMD) & ~x) + +/* + * Send a read command and address to the EEPROM, check for ACK. + */ +static void rl_eeprom_putbyte(sc, addr) + struct rl_softc *sc; + u_int8_t addr; +{ + register int d, i; + + d = addr | RL_EECMD_READ; + + /* + * Feed in each bit and stobe the clock. + */ + for (i = 0x400; i; i >>= 1) { + if (d & i) { + EE_SET(RL_EE_DATAIN); + } else { + EE_CLR(RL_EE_DATAIN); + } + DELAY(100); + EE_SET(RL_EE_CLK); + DELAY(150); + EE_CLR(RL_EE_CLK); + DELAY(100); + } + + return; +} + +/* + * Read a word of data stored in the EEPROM at address 'addr.' + */ +static void rl_eeprom_getword(sc, addr, dest) + struct rl_softc *sc; + u_int8_t addr; + u_int16_t *dest; +{ + register int i; + u_int16_t word = 0; + + /* Enter EEPROM access mode. */ + CSR_WRITE_1(sc, RL_EECMD, RL_EEMODE_PROGRAM|RL_EE_SEL); + + /* + * Send address of word we want to read. + */ + rl_eeprom_putbyte(sc, addr); + + CSR_WRITE_1(sc, RL_EECMD, RL_EEMODE_PROGRAM|RL_EE_SEL); + + /* + * Start reading bits from EEPROM. + */ + for (i = 0x8000; i; i >>= 1) { + EE_SET(RL_EE_CLK); + DELAY(100); + if (CSR_READ_1(sc, RL_EECMD) & RL_EE_DATAOUT) + word |= i; + EE_CLR(RL_EE_CLK); + DELAY(100); + } + + /* Turn off EEPROM access mode. */ + CSR_WRITE_1(sc, RL_EECMD, RL_EEMODE_OFF); + + *dest = word; + + return; +} + +/* + * Read a sequence of words from the EEPROM. + */ +static void rl_read_eeprom(sc, dest, off, cnt, swap) + struct rl_softc *sc; + caddr_t dest; + int off; + int cnt; + int swap; +{ + int i; + u_int16_t word = 0, *ptr; + + for (i = 0; i < cnt; i++) { + rl_eeprom_getword(sc, off + i, &word); + ptr = (u_int16_t *)(dest + (i * 2)); + if (swap) + *ptr = ntohs(word); + else + *ptr = word; + } + + return; +} + + +/* + * MII access routines are provided for the 8129, which + * doesn't have a built-in PHY. For the 8139, we fake things + * up by diverting rl_phy_readreg()/rl_phy_writereg() to the + * direct access PHY registers. + */ +#define MII_SET(x) \ + CSR_WRITE_1(sc, RL_MII, \ + CSR_READ_1(sc, RL_MII) | x) + +#define MII_CLR(x) \ + CSR_WRITE_1(sc, RL_MII, \ + CSR_READ_1(sc, RL_MII) & ~x) + +/* + * Sync the PHYs by setting data bit and strobing the clock 32 times. + */ +static void rl_mii_sync(sc) + struct rl_softc *sc; +{ + register int i; + + MII_SET(RL_MII_DIR|RL_MII_DATAOUT); + + for (i = 0; i < 32; i++) { + MII_SET(RL_MII_CLK); + DELAY(1); + MII_CLR(RL_MII_CLK); + DELAY(1); + } + + return; +} + +/* + * Clock a series of bits through the MII. + */ +static void rl_mii_send(sc, bits, cnt) + struct rl_softc *sc; + u_int32_t bits; + int cnt; +{ + int i; + + MII_CLR(RL_MII_CLK); + + for (i = (0x1 << (cnt - 1)); i; i >>= 1) { + if (bits & i) { + MII_SET(RL_MII_DATAOUT); + } else { + MII_CLR(RL_MII_DATAOUT); + } + DELAY(1); + MII_CLR(RL_MII_CLK); + DELAY(1); + MII_SET(RL_MII_CLK); + } +} + +/* + * Read an PHY register through the MII. + */ +static int rl_mii_readreg(sc, frame) + struct rl_softc *sc; + struct rl_mii_frame *frame; + +{ + int i, ack, s; + + s = splimp(); + + /* + * Set up frame for RX. + */ + frame->mii_stdelim = RL_MII_STARTDELIM; + frame->mii_opcode = RL_MII_READOP; + frame->mii_turnaround = 0; + frame->mii_data = 0; + + CSR_WRITE_2(sc, RL_MII, 0); + + /* + * Turn on data xmit. + */ + MII_SET(RL_MII_DIR); + + rl_mii_sync(sc); + + /* + * Send command/address info. + */ + rl_mii_send(sc, frame->mii_stdelim, 2); + rl_mii_send(sc, frame->mii_opcode, 2); + rl_mii_send(sc, frame->mii_phyaddr, 5); + rl_mii_send(sc, frame->mii_regaddr, 5); + + /* Idle bit */ + MII_CLR((RL_MII_CLK|RL_MII_DATAOUT)); + DELAY(1); + MII_SET(RL_MII_CLK); + DELAY(1); + + /* Turn off xmit. */ + MII_CLR(RL_MII_DIR); + + /* Check for ack */ + MII_CLR(RL_MII_CLK); + DELAY(1); + MII_SET(RL_MII_CLK); + DELAY(1); + ack = CSR_READ_2(sc, RL_MII) & RL_MII_DATAIN; + + /* + * Now try reading data bits. If the ack failed, we still + * need to clock through 16 cycles to keep the PHY(s) in sync. + */ + if (ack) { + for(i = 0; i < 16; i++) { + MII_CLR(RL_MII_CLK); + DELAY(1); + MII_SET(RL_MII_CLK); + DELAY(1); + } + goto fail; + } + + for (i = 0x8000; i; i >>= 1) { + MII_CLR(RL_MII_CLK); + DELAY(1); + if (!ack) { + if (CSR_READ_2(sc, RL_MII) & RL_MII_DATAIN) + frame->mii_data |= i; + DELAY(1); + } + MII_SET(RL_MII_CLK); + DELAY(1); + } + +fail: + + MII_CLR(RL_MII_CLK); + DELAY(1); + MII_SET(RL_MII_CLK); + DELAY(1); + + splx(s); + + if (ack) + return(1); + return(0); +} + +/* + * Write to a PHY register through the MII. + */ +static int rl_mii_writereg(sc, frame) + struct rl_softc *sc; + struct rl_mii_frame *frame; + +{ + int s; + + s = splimp(); + /* + * Set up frame for TX. + */ + + frame->mii_stdelim = RL_MII_STARTDELIM; + frame->mii_opcode = RL_MII_WRITEOP; + frame->mii_turnaround = RL_MII_TURNAROUND; + + /* + * Turn on data output. + */ + MII_SET(RL_MII_DIR); + + rl_mii_sync(sc); + + rl_mii_send(sc, frame->mii_stdelim, 2); + rl_mii_send(sc, frame->mii_opcode, 2); + rl_mii_send(sc, frame->mii_phyaddr, 5); + rl_mii_send(sc, frame->mii_regaddr, 5); + rl_mii_send(sc, frame->mii_turnaround, 2); + rl_mii_send(sc, frame->mii_data, 16); + + /* Idle bit. */ + MII_SET(RL_MII_CLK); + DELAY(1); + MII_CLR(RL_MII_CLK); + DELAY(1); + + /* + * Turn off xmit. + */ + MII_CLR(RL_MII_DIR); + + splx(s); + + return(0); +} + +static u_int16_t rl_phy_readreg(sc, reg) + struct rl_softc *sc; + int reg; +{ + struct rl_mii_frame frame; + u_int16_t rval = 0; + u_int16_t rl8139_reg = 0; + + if (sc->rl_type == RL_8139) { + switch(reg) { + case PHY_BMCR: + rl8139_reg = RL_BMCR; + break; + case PHY_BMSR: + rl8139_reg = RL_BMSR; + break; + case PHY_ANAR: + rl8139_reg = RL_ANAR; + break; + case PHY_LPAR: + rl8139_reg = RL_LPAR; + break; + default: + printf("rl%d: bad phy register\n", sc->rl_unit); + return(0); + } + rval = CSR_READ_2(sc, rl8139_reg); + return(rval); + } + + bzero((char *)&frame, sizeof(frame)); + + frame.mii_phyaddr = sc->rl_phy_addr; + frame.mii_regaddr = reg; + rl_mii_readreg(sc, &frame); + + return(frame.mii_data); +} + +static void rl_phy_writereg(sc, reg, data) + struct rl_softc *sc; + u_int16_t reg; + u_int16_t data; +{ + struct rl_mii_frame frame; + u_int16_t rl8139_reg = 0; + + if (sc->rl_type == RL_8139) { + switch(reg) { + case PHY_BMCR: + rl8139_reg = RL_BMCR; + break; + case PHY_BMSR: + rl8139_reg = RL_BMSR; + break; + case PHY_ANAR: + rl8139_reg = RL_ANAR; + break; + case PHY_LPAR: + rl8139_reg = RL_LPAR; + break; + default: + printf("rl%d: bad phy register\n", sc->rl_unit); + return; + } + CSR_WRITE_2(sc, rl8139_reg, data); + } + + bzero((char *)&frame, sizeof(frame)); + + frame.mii_phyaddr = sc->rl_phy_addr; + frame.mii_regaddr = reg; + frame.mii_data = data; + + rl_mii_writereg(sc, &frame); + + return; +} + +/* + * Calculate CRC of a multicast group address, return the lower 6 bits. + */ +static u_int8_t rl_calchash(addr) + u_int8_t *addr; +{ + u_int32_t crc, carry; + int i, j; + u_int8_t c; + + /* Compute CRC for the address value. */ + crc = 0xFFFFFFFF; /* initial value */ + + for (i = 0; i < 6; i++) { + c = *(addr + i); + for (j = 0; j < 8; j++) { + carry = ((crc & 0x80000000) ? 1 : 0) ^ (c & 0x01); + crc <<= 1; + c >>= 1; + if (carry) + crc = (crc ^ 0x04c11db6) | carry; + } + } + + /* return the filter bit position */ + return(crc & 0x0000003F); +} + +/* + * Program the 64-bit multicast hash filter. + */ +static void rl_setmulti(sc) + struct rl_softc *sc; +{ + struct ifnet *ifp; + int h = 0; + u_int32_t hashes[2] = { 0, 0 }; +#ifdef __FreeBSD__ + struct ifmultiaddr *ifma; +#else + struct arpcom *ac = &sc->arpcom; + struct ether_multi *enm; + struct ether_multistep step; +#endif + u_int32_t rxfilt; + int mcnt = 0; + + ifp = &sc->arpcom.ac_if; + + rxfilt = CSR_READ_4(sc, RL_RXCFG); + + if (ifp->if_flags & IFF_ALLMULTI) { + rxfilt |= RL_RXCFG_RX_MULTI; + CSR_WRITE_4(sc, RL_RXCFG, rxfilt); + CSR_WRITE_4(sc, RL_MAR0, 0xFFFFFFFF); + CSR_WRITE_4(sc, RL_MAR4, 0xFFFFFFFF); + return; + } + + /* first, zot all the existing hash bits */ + CSR_WRITE_4(sc, RL_MAR0, 0); + CSR_WRITE_4(sc, RL_MAR4, 0); + + /* now program new ones */ +#ifdef __FreeBSD__ + for (ifma = ifp->if_multiaddrs.lh_first; ifma != NULL; + ifma = ifma->ifma_link.le_next) { + if (ifma->ifma_addr->sa_family != AF_LINK) + continue; + h = rl_calchash(LLADDR((struct sockaddr_dl *)ifma->ifma_addr)); + if (h < 32) + hashes[0] |= (1 << h); + else + hashes[1] |= (1 << (h - 32)); + mcnt++; + } +#else + ETHER_FIRST_MULTI(step, ac, enm); + while (enm != NULL) { + mcnt++; + h = rl_calchash(enm->enm_addrlo); + if (h < 32) + hashes[0] |= (1 << h); + else + hashes[1] |= (1 << (h - 32)); + mcnt++; + ETHER_NEXT_MULTI(step, enm); + } +#endif + + if (mcnt) + rxfilt |= RL_RXCFG_RX_MULTI; + else + rxfilt &= ~RL_RXCFG_RX_MULTI; + + CSR_WRITE_4(sc, RL_RXCFG, rxfilt); + CSR_WRITE_4(sc, RL_MAR0, hashes[0]); + CSR_WRITE_4(sc, RL_MAR4, hashes[1]); + + return; +} + +/* + * Initiate an autonegotiation session. + */ +static void rl_autoneg_xmit(sc) + struct rl_softc *sc; +{ + u_int16_t phy_sts; + + rl_phy_writereg(sc, PHY_BMCR, PHY_BMCR_RESET); + DELAY(500); + while(rl_phy_readreg(sc, PHY_BMCR) + & PHY_BMCR_RESET); + + phy_sts = rl_phy_readreg(sc, PHY_BMCR); + phy_sts |= PHY_BMCR_AUTONEGENBL|PHY_BMCR_AUTONEGRSTR; + rl_phy_writereg(sc, PHY_BMCR, phy_sts); + + return; +} + +/* + * Invoke autonegotiation on a PHY. Also used with the 8139 internal + * transceiver. + */ +static void rl_autoneg_mii(sc, flag, verbose) + struct rl_softc *sc; + int flag; + int verbose; +{ + u_int16_t phy_sts = 0, media, advert, ability; + struct ifnet *ifp; + struct ifmedia *ifm; + + ifm = &sc->ifmedia; + ifp = &sc->arpcom.ac_if; + + /* + * The 100baseT4 PHY sometimes has the 'autoneg supported' + * bit cleared in the status register, but has the 'autoneg enabled' + * bit set in the control register. This is a contradiction, and + * I'm not sure how to handle it. If you want to force an attempt + * to autoneg for 100baseT4 PHYs, #define FORCE_AUTONEG_TFOUR + * and see what happens. + */ +#ifndef FORCE_AUTONEG_TFOUR + /* + * First, see if autoneg is supported. If not, there's + * no point in continuing. + */ + phy_sts = rl_phy_readreg(sc, PHY_BMSR); + if (!(phy_sts & PHY_BMSR_CANAUTONEG)) { + if (verbose) + printf("rl%d: autonegotiation not supported\n", + sc->rl_unit); + return; + } +#endif + + switch (flag) { + case RL_FLAG_FORCEDELAY: + /* + * XXX Never use this option anywhere but in the probe + * routine: making the kernel stop dead in its tracks + * for three whole seconds after we've gone multi-user + * is really bad manners. + */ + rl_autoneg_xmit(sc); + DELAY(5000000); + break; + case RL_FLAG_SCHEDDELAY: + /* + * Wait for the transmitter to go idle before starting + * an autoneg session, otherwise rl_start() may clobber + * our timeout, and we don't want to allow transmission + * during an autoneg session since that can screw it up. + */ + if (sc->rl_cdata.rl_tx_cnt) { + sc->rl_want_auto = 1; + return; + } + rl_autoneg_xmit(sc); + ifp->if_timer = 5; + sc->rl_autoneg = 1; + sc->rl_want_auto = 0; + return; + break; + case RL_FLAG_DELAYTIMEO: + ifp->if_timer = 0; + sc->rl_autoneg = 0; + break; + default: + printf("rl%d: invalid autoneg flag: %d\n", sc->rl_unit, flag); + return; + } + + if (rl_phy_readreg(sc, PHY_BMSR) & PHY_BMSR_AUTONEGCOMP) { + if (verbose) + printf("rl%d: autoneg complete, ", sc->rl_unit); + phy_sts = rl_phy_readreg(sc, PHY_BMSR); + } else { + if (verbose) + printf("rl%d: autoneg not complete, ", sc->rl_unit); + } + + media = rl_phy_readreg(sc, PHY_BMCR); + + /* Link is good. Report modes and set duplex mode. */ + if (rl_phy_readreg(sc, PHY_BMSR) & PHY_BMSR_LINKSTAT) { + if (verbose) + printf("link status good "); + advert = rl_phy_readreg(sc, PHY_ANAR); + ability = rl_phy_readreg(sc, PHY_LPAR); + + if (advert & PHY_ANAR_100BT4 && ability & PHY_ANAR_100BT4) { + ifm->ifm_media = IFM_ETHER|IFM_100_T4; + media |= PHY_BMCR_SPEEDSEL; + media &= ~PHY_BMCR_DUPLEX; + printf("(100baseT4)\n"); + } else if (advert & PHY_ANAR_100BTXFULL && + ability & PHY_ANAR_100BTXFULL) { + ifm->ifm_media = IFM_ETHER|IFM_100_TX|IFM_FDX; + media |= PHY_BMCR_SPEEDSEL; + media |= PHY_BMCR_DUPLEX; + printf("(full-duplex, 100Mbps)\n"); + } else if (advert & PHY_ANAR_100BTXHALF && + ability & PHY_ANAR_100BTXHALF) { + ifm->ifm_media = IFM_ETHER|IFM_100_TX|IFM_HDX; + media |= PHY_BMCR_SPEEDSEL; + media &= ~PHY_BMCR_DUPLEX; + printf("(half-duplex, 100Mbps)\n"); + } else if (advert & PHY_ANAR_10BTFULL && + ability & PHY_ANAR_10BTFULL) { + ifm->ifm_media = IFM_ETHER|IFM_10_T|IFM_FDX; + media &= ~PHY_BMCR_SPEEDSEL; + media |= PHY_BMCR_DUPLEX; + printf("(full-duplex, 10Mbps)\n"); + } else if (advert & PHY_ANAR_10BTHALF && + ability & PHY_ANAR_10BTHALF) { + ifm->ifm_media = IFM_ETHER|IFM_10_T|IFM_HDX; + media &= ~PHY_BMCR_SPEEDSEL; + media &= ~PHY_BMCR_DUPLEX; + printf("(half-duplex, 10Mbps)\n"); + } else { + ifm->ifm_media = IFM_ETHER|IFM_10_T|IFM_HDX; + media &= ~PHY_BMCR_SPEEDSEL; + media &= ~PHY_BMCR_DUPLEX; + printf("(unknown mode! forcing half-duplex, 10Mbps)\n"); + } + + /* Set ASIC's duplex mode to match the PHY. */ + rl_phy_writereg(sc, PHY_BMCR, media); + } else { + if (verbose) + printf("no carrier\n"); + } + + rl_init(sc); + + if (sc->rl_tx_pend) { + sc->rl_autoneg = 0; + sc->rl_tx_pend = 0; + rl_start(ifp); + } + + return; +} + +static void rl_getmode_mii(sc) + struct rl_softc *sc; +{ + u_int16_t bmsr; + struct ifnet *ifp; + + ifp = &sc->arpcom.ac_if; + + bmsr = rl_phy_readreg(sc, PHY_BMSR); + if (bootverbose) + printf("rl%d: PHY status word: %x\n", sc->rl_unit, bmsr); + + /* fallback */ + sc->ifmedia.ifm_media = IFM_ETHER|IFM_10_T|IFM_HDX; + + if (bmsr & PHY_BMSR_10BTHALF) { + if (bootverbose) + printf("rl%d: 10Mbps half-duplex mode supported\n", + sc->rl_unit); + ifmedia_add(&sc->ifmedia, + IFM_ETHER|IFM_10_T|IFM_HDX, 0, NULL); + ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_T, 0, NULL); + } + + if (bmsr & PHY_BMSR_10BTFULL) { + if (bootverbose) + printf("rl%d: 10Mbps full-duplex mode supported\n", + sc->rl_unit); + ifmedia_add(&sc->ifmedia, + IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL); + sc->ifmedia.ifm_media = IFM_ETHER|IFM_10_T|IFM_FDX; + } + + if (bmsr & PHY_BMSR_100BTXHALF) { + if (bootverbose) + printf("rl%d: 100Mbps half-duplex mode supported\n", + sc->rl_unit); + ifp->if_baudrate = 100000000; + ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_100_TX, 0, NULL); + ifmedia_add(&sc->ifmedia, + IFM_ETHER|IFM_100_TX|IFM_HDX, 0, NULL); + sc->ifmedia.ifm_media = IFM_ETHER|IFM_100_TX|IFM_HDX; + } + + if (bmsr & PHY_BMSR_100BTXFULL) { + if (bootverbose) + printf("rl%d: 100Mbps full-duplex mode supported\n", + sc->rl_unit); + ifp->if_baudrate = 100000000; + ifmedia_add(&sc->ifmedia, + IFM_ETHER|IFM_100_TX|IFM_FDX, 0, NULL); + sc->ifmedia.ifm_media = IFM_ETHER|IFM_100_TX|IFM_FDX; + } + + /* Some also support 100BaseT4. */ + if (bmsr & PHY_BMSR_100BT4) { + if (bootverbose) + printf("rl%d: 100baseT4 mode supported\n", sc->rl_unit); + ifp->if_baudrate = 100000000; + ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_100_T4, 0, NULL); + sc->ifmedia.ifm_media = IFM_ETHER|IFM_100_T4; +#ifdef FORCE_AUTONEG_TFOUR + if (bootverbose) + printf("rl%d: forcing on autoneg support for BT4\n", + sc->rl_unit); + ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_AUTO, 0 NULL): + sc->ifmedia.ifm_media = IFM_ETHER|IFM_AUTO; +#endif + } + + if (bmsr & PHY_BMSR_CANAUTONEG) { + if (bootverbose) + printf("rl%d: autoneg supported\n", sc->rl_unit); + ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL); + sc->ifmedia.ifm_media = IFM_ETHER|IFM_AUTO; + } + + return; +} + +/* + * Set speed and duplex mode. + */ +static void rl_setmode_mii(sc, media) + struct rl_softc *sc; + int media; +{ + u_int16_t bmcr; + + printf("rl%d: selecting MII, ", sc->rl_unit); + + bmcr = rl_phy_readreg(sc, PHY_BMCR); + + bmcr &= ~(PHY_BMCR_AUTONEGENBL|PHY_BMCR_SPEEDSEL| + PHY_BMCR_DUPLEX|PHY_BMCR_LOOPBK); + + if (IFM_SUBTYPE(media) == IFM_100_T4) { + printf("100Mbps/T4, half-duplex\n"); + bmcr |= PHY_BMCR_SPEEDSEL; + bmcr &= ~PHY_BMCR_DUPLEX; + } + + if (IFM_SUBTYPE(media) == IFM_100_TX) { + printf("100Mbps, "); + bmcr |= PHY_BMCR_SPEEDSEL; + } + + if (IFM_SUBTYPE(media) == IFM_10_T) { + printf("10Mbps, "); + bmcr &= ~PHY_BMCR_SPEEDSEL; + } + + if ((media & IFM_GMASK) == IFM_FDX) { + printf("full duplex\n"); + bmcr |= PHY_BMCR_DUPLEX; + } else { + printf("half duplex\n"); + bmcr &= ~PHY_BMCR_DUPLEX; + } + + rl_phy_writereg(sc, PHY_BMCR, bmcr); + + return; +} + +static void rl_reset(sc) + struct rl_softc *sc; +{ + register int i; + + CSR_WRITE_1(sc, RL_COMMAND, RL_CMD_RESET); + + for (i = 0; i < RL_TIMEOUT; i++) { + DELAY(10); + if (!(CSR_READ_1(sc, RL_COMMAND) & RL_CMD_RESET)) + break; + } + if (i == RL_TIMEOUT) + printf("rl%d: reset never completed!\n", sc->rl_unit); + + return; +} + +#ifdef __FreeBSD__ +/* + * Probe for a RealTek 8129/8139 chip. Check the PCI vendor and device + * IDs against our list and return a device name if we find a match. + */ +static char * +rl_probe(config_id, device_id) + pcici_t config_id; + pcidi_t device_id; +{ + struct rl_type *t; + + t = rl_devs; + + while(t->rl_name != NULL) { + if ((device_id & 0xFFFF) == t->rl_vid && + ((device_id >> 16) & 0xFFFF) == t->rl_did) { + return(t->rl_name); + } + t++; + } + + return(NULL); +} + +/* + * Attach the interface. Allocate softc structures, do ifmedia + * setup and ethernet/BPF attach. + */ +static void +rl_attach(config_id, unit) + pcici_t config_id; + int unit; +{ + int s, i; +#ifndef RL_USEIOSPACE + vm_offset_t pbase, vbase; +#endif + u_char eaddr[ETHER_ADDR_LEN]; + u_int32_t command; + struct rl_softc *sc; + struct ifnet *ifp; + int media = IFM_ETHER|IFM_100_TX|IFM_FDX; + struct rl_type *p; + u_int16_t phy_vid, phy_did, phy_sts; + u_int16_t rl_did = 0; + + s = splimp(); + + sc = malloc(sizeof(struct rl_softc), M_DEVBUF, M_NOWAIT); + if (sc == NULL) { + printf("rl%d: no memory for softc struct!\n", unit); + return; + } + bzero(sc, sizeof(struct rl_softc)); + + /* + * Handle power management nonsense. + */ + + command = pci_conf_read(config_id, RL_PCI_CAPID) & 0x000000FF; + if (command == 0x01) { + + command = pci_conf_read(config_id, RL_PCI_PWRMGMTCTRL); + if (command & RL_PSTATE_MASK) { + u_int32_t iobase, membase, irq; + + /* Save important PCI config data. */ + iobase = pci_conf_read(config_id, RL_PCI_LOIO); + membase = pci_conf_read(config_id, RL_PCI_LOMEM); + irq = pci_conf_read(config_id, RL_PCI_INTLINE); + + /* Reset the power state. */ + printf("rl%d: chip is is in D%d power mode " + "-- setting to D0\n", unit, command & RL_PSTATE_MASK); + command &= 0xFFFFFFFC; + pci_conf_write(config_id, RL_PCI_PWRMGMTCTRL, command); + + /* Restore PCI config data. */ + pci_conf_write(config_id, RL_PCI_LOIO, iobase); + pci_conf_write(config_id, RL_PCI_LOMEM, membase); + pci_conf_write(config_id, RL_PCI_INTLINE, irq); + } + } + + /* + * Map control/status registers. + */ + command = pci_conf_read(config_id, PCI_COMMAND_STATUS_REG); + command |= (PCIM_CMD_PORTEN|PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN); + pci_conf_write(config_id, PCI_COMMAND_STATUS_REG, command); + command = pci_conf_read(config_id, PCI_COMMAND_STATUS_REG); + +#ifdef RL_USEIOSPACE + if (!(command & PCIM_CMD_PORTEN)) { + printf("rl%d: failed to enable I/O ports!\n", unit); + free(sc, M_DEVBUF); + goto fail; + } + + sc->iobase = pci_conf_read(config_id, RL_PCI_LOIO) & 0xFFFFFFFC; +#else + if (!(command & PCIM_CMD_MEMEN)) { + printf("rl%d: failed to enable memory mapping!\n", unit); + goto fail; + } + + if (!pci_map_mem(config_id, RL_PCI_LOMEM, &vbase, &pbase)) { + printf ("rl%d: couldn't map memory\n", unit); + goto fail; + } + sc->csr = (volatile caddr_t)vbase; +#endif + + /* Allocate interrupt */ + if (!pci_map_int(config_id, rl_intr, sc, &net_imask)) { + printf("rl%d: couldn't map interrupt\n", unit); + goto fail; + } + + /* Reset the adapter. */ + rl_reset(sc); + + /* + * Get station address from the EEPROM. + */ + rl_read_eeprom(sc, (caddr_t)&eaddr, RL_EE_EADDR, 3, 0); + + /* + * A RealTek chip was detected. Inform the world. + */ + printf("rl%d: Ethernet address: %6D\n", unit, eaddr, ":"); + + sc->rl_unit = unit; + bcopy(eaddr, (char *)&sc->arpcom.ac_enaddr, ETHER_ADDR_LEN); + + /* + * Now read the exact device type from the EEPROM to find + * out if it's an 8129 or 8139. + */ + rl_read_eeprom(sc, (caddr_t)&rl_did, RL_EE_PCI_DID, 1, 0); + + if (rl_did == RT_DEVICEID_8139) + sc->rl_type = RL_8139; + else if (rl_did == RT_DEVICEID_8129) + sc->rl_type = RL_8129; + else { + printf("rl%d: unknown device ID: %x\n", unit, rl_did); + free(sc, M_DEVBUF); + goto fail; + } + + sc->rl_cdata.rl_rx_buf = contigmalloc(RL_RXBUFLEN + 16, M_DEVBUF, + M_NOWAIT, 0x100000, 0xffffffff, PAGE_SIZE, 0); + + if (sc->rl_cdata.rl_rx_buf == NULL) { + free(sc, M_DEVBUF); + printf("rl%d: no memory for list buffers!\n", unit); + goto fail; + } + + ifp = &sc->arpcom.ac_if; + ifp->if_softc = sc; + ifp->if_unit = unit; + ifp->if_name = "rl"; + ifp->if_mtu = ETHERMTU; + ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; + ifp->if_ioctl = rl_ioctl; + ifp->if_output = ether_output; + ifp->if_start = rl_start; + ifp->if_watchdog = rl_watchdog; + ifp->if_init = rl_init; + ifp->if_baudrate = 10000000; + + if (sc->rl_type == RL_8129) { + if (bootverbose) + printf("rl%d: probing for a PHY\n", sc->rl_unit); + for (i = RL_PHYADDR_MIN; i < RL_PHYADDR_MAX + 1; i++) { + if (bootverbose) + printf("rl%d: checking address: %d\n", + sc->rl_unit, i); + sc->rl_phy_addr = i; + rl_phy_writereg(sc, PHY_BMCR, PHY_BMCR_RESET); + DELAY(500); + while(rl_phy_readreg(sc, PHY_BMCR) + & PHY_BMCR_RESET); + if ((phy_sts = rl_phy_readreg(sc, PHY_BMSR))) + break; + } + if (phy_sts) { + phy_vid = rl_phy_readreg(sc, PHY_VENID); + phy_did = rl_phy_readreg(sc, PHY_DEVID); + if (bootverbose) + printf("rl%d: found PHY at address %d, ", + sc->rl_unit, sc->rl_phy_addr); + if (bootverbose) + printf("vendor id: %x device id: %x\n", + phy_vid, phy_did); + p = rl_phys; + while(p->rl_vid) { + if (phy_vid == p->rl_vid && + (phy_did | 0x000F) == p->rl_did) { + sc->rl_pinfo = p; + break; + } + p++; + } + if (sc->rl_pinfo == NULL) + sc->rl_pinfo = &rl_phys[PHY_UNKNOWN]; + if (bootverbose) + printf("rl%d: PHY type: %s\n", + sc->rl_unit, sc->rl_pinfo->rl_name); + } else { + printf("rl%d: MII without any phy!\n", sc->rl_unit); + } + } + + /* + * Do ifmedia setup. + */ + ifmedia_init(&sc->ifmedia, 0, rl_ifmedia_upd, rl_ifmedia_sts); + + rl_getmode_mii(sc); + + /* Choose a default media. */ + media = IFM_ETHER|IFM_AUTO; + ifmedia_set(&sc->ifmedia, media); + + rl_autoneg_mii(sc, RL_FLAG_FORCEDELAY, 1); + + /* + * Call MI attach routines. + */ + if_attach(ifp); + ether_ifattach(ifp); + +#if NBPFILTER > 0 + bpfattach(ifp, DLT_EN10MB, sizeof(struct ether_header)); +#endif + at_shutdown(rl_shutdown, sc, SHUTDOWN_POST_SYNC); + +fail: + splx(s); + return; +} +#endif + +/* + * Initialize the transmit descriptors. + */ +static int rl_list_tx_init(sc) + struct rl_softc *sc; +{ + struct rl_chain_data *cd; + int i; + + cd = &sc->rl_cdata; + for (i = 0; i < RL_TX_LIST_CNT; i++) { + cd->rl_tx_chain[i].rl_desc = i * 4; + CSR_WRITE_4(sc, RL_TXADDR0 + cd->rl_tx_chain[i].rl_desc, 0); + CSR_WRITE_4(sc, RL_TXSTAT0 + cd->rl_tx_chain[i].rl_desc, 0); + if (i == (RL_TX_LIST_CNT - 1)) + cd->rl_tx_chain[i].rl_next = &cd->rl_tx_chain[0]; + else + cd->rl_tx_chain[i].rl_next = &cd->rl_tx_chain[i + 1]; + } + + sc->rl_cdata.rl_tx_cnt = 0; + cd->rl_tx_cur = cd->rl_tx_free = &cd->rl_tx_chain[0]; + + return(0); +} + +/* + * A frame has been uploaded: pass the resulting mbuf chain up to + * the higher level protocols. + * + * You know there's something wrong with a PCI bus-master chip design + * when you have to use m_devget(). + * + * The receive operation is badly documented in the datasheet, so I'll + * attempt to document it here. The driver provides a buffer area and + * places its base address in the RX buffer start address register. + * The chip then begins copying frames into the RX buffer. Each frame + * is preceeded by a 32-bit RX status word which specifies the length + * of the frame and certain other status bits. Each frame (starting with + * the status word) is also 32-bit aligned. The frame length is in the + * first 16 bits of the status word; the lower 15 bits correspond with + * the 'rx status register' mentioned in the datasheet. + */ +static void rl_rxeof(sc) + struct rl_softc *sc; +{ + struct ether_header *eh; + struct mbuf *m; + struct ifnet *ifp; + int total_len = 0; + u_int32_t rxstat; + caddr_t rxbufpos; + int wrap = 0; + u_int16_t cur_rx; + u_int16_t limit; + u_int16_t rx_bytes = 0, max_bytes; + + ifp = &sc->arpcom.ac_if; + + cur_rx = (CSR_READ_2(sc, RL_CURRXADDR) + 16) % RL_RXBUFLEN; + + /* Do not try to read past this point. */ + limit = CSR_READ_2(sc, RL_CURRXBUF) % RL_RXBUFLEN; + + if (limit < cur_rx) + max_bytes = (RL_RXBUFLEN - cur_rx) + limit; + else + max_bytes = limit - cur_rx; + + while((CSR_READ_1(sc, RL_COMMAND) & 1) == 0) { + rxbufpos = sc->rl_cdata.rl_rx_buf + cur_rx; + rxstat = *(u_int32_t *)rxbufpos; + + /* + * Here's a totally undocumented fact for you. When the + * RealTek chip is in the process of copying a packet into + * RAM for you, the length will be 0xfff0. If you spot a + * packet header with this value, you need to stop. The + * datasheet makes absolutely no mention of this and + * RealTek should be shot for this. + */ + if ((u_int16_t)(rxstat >> 16) == RL_RXSTAT_UNFINISHED) + break; + + if (!(rxstat & RL_RXSTAT_RXOK)) { + ifp->if_ierrors++; + if (rxstat & (RL_RXSTAT_BADSYM|RL_RXSTAT_RUNT| + RL_RXSTAT_GIANT|RL_RXSTAT_CRCERR| + RL_RXSTAT_ALIGNERR)) { + CSR_WRITE_2(sc, RL_COMMAND, RL_CMD_TX_ENB); + CSR_WRITE_2(sc, RL_COMMAND, RL_CMD_TX_ENB| + RL_CMD_RX_ENB); + CSR_WRITE_4(sc, RL_RXCFG, RL_RXCFG_CONFIG); + CSR_WRITE_4(sc, RL_RXADDR, + vtophys(sc->rl_cdata.rl_rx_buf)); + CSR_WRITE_2(sc, RL_CURRXADDR, cur_rx - 16); + cur_rx = 0; + } + break; + } + + /* No errors; receive the packet. */ + total_len = rxstat >> 16; + rx_bytes += total_len + 4; + + /* + * Avoid trying to read more bytes than we know + * the chip has prepared for us. + */ + if (rx_bytes > max_bytes) + break; + + rxbufpos = sc->rl_cdata.rl_rx_buf + + ((cur_rx + sizeof(u_int32_t)) % RL_RXBUFLEN); + + if (rxbufpos == (sc->rl_cdata.rl_rx_buf + RL_RXBUFLEN)) + rxbufpos = sc->rl_cdata.rl_rx_buf; + + wrap = (sc->rl_cdata.rl_rx_buf + RL_RXBUFLEN) - rxbufpos; + + if (total_len > wrap) { + m = m_devget(rxbufpos, wrap, 0, ifp, NULL); + if (m == NULL) { + ifp->if_ierrors++; + printf("rl%d: out of mbufs, tried to " + "copy %d bytes\n", sc->rl_unit, wrap); + } + else + m_copyback(m, wrap, total_len - wrap, + sc->rl_cdata.rl_rx_buf); + cur_rx = (total_len - wrap); + } else { + m = m_devget(rxbufpos, total_len, 0, ifp, NULL); + if (m == NULL) { + ifp->if_ierrors++; + printf("rl%d: out of mbufs, tried to " + "copy %d bytes\n", sc->rl_unit, total_len); + } + cur_rx += total_len + 4; + } + + /* + * Round up to 32-bit boundary. + */ + cur_rx = (cur_rx + 3) & ~3; + CSR_WRITE_2(sc, RL_CURRXADDR, cur_rx - 16); + + if (m == NULL) + continue; + + eh = mtod(m, struct ether_header *); + ifp->if_ipackets++; + +#if NBPFILTER > 0 + /* + * Handle BPF listeners. Let the BPF user see the packet, but + * don't pass it up to the ether_input() layer unless it's + * a broadcast packet, multicast packet, matches our ethernet + * address or the interface is in promiscuous mode. + */ + if (ifp->if_bpf) { +#ifdef __FreeBSD__ + bpf_mtap(ifp, m); +#else + bpf_mtap(ifp->if_bpf, m); +#endif + if (ifp->if_flags & IFF_PROMISC && + (bcmp(eh->ether_dhost, sc->arpcom.ac_enaddr, + ETHER_ADDR_LEN) && + (eh->ether_dhost[0] & 1) == 0)) { + m_freem(m); + continue; + } + } +#endif + /* Remove header from mbuf and pass it on. */ + m_adj(m, sizeof(struct ether_header)); + ether_input(ifp, eh, m); + } + + return; +} + +/* + * A frame was downloaded to the chip. It's safe for us to clean up + * the list buffers. + */ +static void rl_txeof(sc) + struct rl_softc *sc; +{ + struct rl_chain *cur_tx; + struct ifnet *ifp; + u_int32_t txstat; + + ifp = &sc->arpcom.ac_if; + + /* Clear the timeout timer. */ + ifp->if_timer = 0; + + /* + * Go through our tx list and free mbufs for those + * frames that have been uploaded. + */ + if (sc->rl_cdata.rl_tx_free == NULL) + return; + + while(sc->rl_cdata.rl_tx_free->rl_mbuf != NULL) { + cur_tx = sc->rl_cdata.rl_tx_free; + txstat = CSR_READ_4(sc, RL_TXSTAT0 + cur_tx->rl_desc); + + if (!(txstat & RL_TXSTAT_TX_OK)) + break; + + if (txstat & RL_TXSTAT_COLLCNT) + ifp->if_collisions += + (txstat & RL_TXSTAT_COLLCNT) >> 24; + + sc->rl_cdata.rl_tx_free = cur_tx->rl_next; + + sc->rl_cdata.rl_tx_cnt--; + m_freem(cur_tx->rl_mbuf); + cur_tx->rl_mbuf = NULL; + ifp->if_opackets++; + } + + if (!sc->rl_cdata.rl_tx_cnt) { + ifp->if_flags &= ~IFF_OACTIVE; + if (sc->rl_want_auto) + rl_autoneg_mii(sc, RL_FLAG_SCHEDDELAY, 1); + } else { + if (ifp->if_snd.ifq_head != NULL) + rl_start(ifp); + } + + return; +} + +/* + * TX error handler. + */ +static void rl_txeoc(sc) + struct rl_softc *sc; +{ + u_int32_t txstat; + struct rl_chain *cur_tx; + struct ifnet *ifp; + + ifp = &sc->arpcom.ac_if; + + if (sc->rl_cdata.rl_tx_free == NULL) + return; + + while(sc->rl_cdata.rl_tx_free->rl_mbuf != NULL) { + cur_tx = sc->rl_cdata.rl_tx_free; + txstat = CSR_READ_4(sc, RL_TXSTAT0 + cur_tx->rl_desc); + + if (!(txstat & RL_TXSTAT_OWN)) + break; + + if (!(txstat & RL_TXSTAT_TX_OK)) { + ifp->if_oerrors++; + if (txstat & RL_TXSTAT_COLLCNT) + ifp->if_collisions += + (txstat & RL_TXSTAT_COLLCNT) >> 24; + CSR_WRITE_4(sc, RL_TXADDR0 + cur_tx->rl_desc, + vtophys(mtod(cur_tx->rl_mbuf, caddr_t))); + CSR_WRITE_4(sc, RL_TXSTAT0 + cur_tx->rl_desc, + RL_TX_EARLYTHRESH | + cur_tx->rl_mbuf->m_pkthdr.len); + break; + } else { + if (txstat & RL_TXSTAT_COLLCNT) + ifp->if_collisions += + (txstat & RL_TXSTAT_COLLCNT) >> 24; + sc->rl_cdata.rl_tx_free = cur_tx->rl_next; + + sc->rl_cdata.rl_tx_cnt--; + m_freem(cur_tx->rl_mbuf); + cur_tx->rl_mbuf = NULL; + ifp->if_opackets++; + } + } + + return; +} + +#ifdef __FreeBSD__ +static void rl_intr(arg) +#elif defined(__OpenBSD__) +static int rl_intr(arg) +#endif + void *arg; +{ + struct rl_softc *sc; + struct ifnet *ifp; +#ifdef __OpenBSD__ + int claimed = 0; +#endif + u_int16_t status; + + sc = arg; + ifp = &sc->arpcom.ac_if; + + /* Disable interrupts. */ + CSR_WRITE_2(sc, RL_IMR, 0x0000); + + for (;;) { + + status = CSR_READ_2(sc, RL_ISR); + if (status) + CSR_WRITE_2(sc, RL_ISR, status); + + if ((status & RL_INTRS) == 0) + break; + + if (status & RL_ISR_RX_OK) + rl_rxeof(sc); + + if (status & RL_ISR_RX_ERR) + rl_rxeof(sc); + + if (status & RL_ISR_TX_OK) + rl_txeof(sc); + + if (status & RL_ISR_TX_ERR) + rl_txeoc(sc); + + if (status & RL_ISR_SYSTEM_ERR) { + rl_reset(sc); + rl_init(sc); + } +#ifdef __OpenBSD__ + claimed = 1; +#endif + + } + + /* Re-enable interrupts. */ + CSR_WRITE_2(sc, RL_IMR, RL_INTRS); + + if (ifp->if_snd.ifq_head != NULL) { + rl_start(ifp); + } + +#ifdef __OpenBSD__ + return claimed; +#else + return; +#endif +} + +/* + * Encapsulate an mbuf chain in a descriptor by coupling the mbuf data + * pointers to the fragment pointers. + */ +static int rl_encap(sc, c, m_head) + struct rl_softc *sc; + struct rl_chain *c; + struct mbuf *m_head; +{ + struct mbuf *m; + + /* + * There are two possible encapsulation mechanisms + * that we can use: an efficient one, and a very lossy + * one. The efficient one only happens very rarely, + * whereas the lossy one can and most likely will happen + * all the time. + * The efficient case happens if: + * - the packet fits in a single mbuf + * - the packet is 32-bit aligned within the mbuf data area + * In this case, we can DMA from the mbuf directly. + * The lossy case covers everything else. Bah. + */ + + m = m_head; + + if (m->m_pkthdr.len > MHLEN || (mtod(m, u_int32_t) & 0x00000003)) { + struct mbuf *m_new = NULL; + + MGETHDR(m_new, M_DONTWAIT, MT_DATA); + if (m_new == NULL) { + printf("rl%d: no memory for tx list", sc->rl_unit); + return(1); + } + if (m_head->m_pkthdr.len > MHLEN) { + MCLGET(m_new, M_DONTWAIT); + if (!(m_new->m_flags & M_EXT)) { + m_freem(m_new); + printf("rl%d: no memory for tx list", + sc->rl_unit); + return(1); + } + } + m_copydata(m_head, 0, m_head->m_pkthdr.len, + mtod(m_new, caddr_t)); + m_new->m_pkthdr.len = m_new->m_len = m_head->m_pkthdr.len; + m_freem(m_head); + m_head = m_new; + } + + /* Pad frames to at least 60 bytes. */ + if (m_head->m_pkthdr.len < RL_MIN_FRAMELEN) + m_head->m_pkthdr.len += + (RL_MIN_FRAMELEN - m_head->m_pkthdr.len); + + c->rl_mbuf = m_head; + + return(0); +} + +/* + * Main transmit routine. + */ + +static void rl_start(ifp) + struct ifnet *ifp; +{ + struct rl_softc *sc; + struct mbuf *m_head = NULL; + struct rl_chain *cur_tx = NULL; + + sc = ifp->if_softc; + + if (sc->rl_autoneg) { + sc->rl_tx_pend = 1; + return; + } + + /* + * Check for an available queue slot. If there are none, + * punt. + */ + if (sc->rl_cdata.rl_tx_cur->rl_mbuf != NULL) { + ifp->if_flags |= IFF_OACTIVE; + return; + } + + while(sc->rl_cdata.rl_tx_cur->rl_mbuf == NULL) { + IF_DEQUEUE(&ifp->if_snd, m_head); + if (m_head == NULL) + break; + + + /* Pick a descriptor off the free list. */ + cur_tx = sc->rl_cdata.rl_tx_cur; + sc->rl_cdata.rl_tx_cur = cur_tx->rl_next; + sc->rl_cdata.rl_tx_cnt++; + + /* Pack the data into the descriptor. */ + rl_encap(sc, cur_tx, m_head); + +#if NBPFILTER > 0 + /* + * If there's a BPF listener, bounce a copy of this frame + * to him. + */ + if (ifp->if_bpf) +#ifdef __FreeBSD__ + bpf_mtap(ifp, cur_tx->rl_mbuf); +#else + bpf_mtap(ifp->if_bpf, cur_tx->rl_mbuf); +#endif +#endif + /* + * Transmit the frame. + */ + CSR_WRITE_4(sc, RL_TXADDR0 + cur_tx->rl_desc, + vtophys(mtod(cur_tx->rl_mbuf, caddr_t))); + CSR_WRITE_4(sc, RL_TXSTAT0 + cur_tx->rl_desc, + RL_TX_EARLYTHRESH | cur_tx->rl_mbuf->m_pkthdr.len); + } + + /* + * Set a timeout in case the chip goes out to lunch. + */ + ifp->if_timer = 5; + + return; +} + +static void rl_init(xsc) + void *xsc; +{ + struct rl_softc *sc = xsc; + struct ifnet *ifp = &sc->arpcom.ac_if; + int s, i; + u_int32_t rxcfg = 0; + u_int16_t phy_bmcr = 0; + + if (sc->rl_autoneg) + return; + + s = splimp(); + + /* + * XXX Hack for the 8139: the built-in autoneg logic's state + * gets reset by rl_init() when we don't want it to. Try + * to preserve it. (For 8129 cards with real external PHYs, + * the BMCR register doesn't change, but this doesn't hurt.) + */ + if (sc->rl_type == RL_8139) + phy_bmcr = rl_phy_readreg(sc, PHY_BMCR); + + /* + * Cancel pending I/O and free all RX/TX buffers. + */ + rl_stop(sc); + + /* Init our MAC address */ + for (i = 0; i < ETHER_ADDR_LEN; i++) { + CSR_WRITE_1(sc, RL_IDR0 + i, sc->arpcom.ac_enaddr[i]); + } + + /* Init the RX buffer pointer register. */ + CSR_WRITE_4(sc, RL_RXADDR, vtophys(sc->rl_cdata.rl_rx_buf)); + + /* Init TX descriptors. */ + rl_list_tx_init(sc); + + /* + * Enable transmit and receive. + */ + CSR_WRITE_1(sc, RL_COMMAND, RL_CMD_TX_ENB|RL_CMD_RX_ENB); + + /* + * Set the buffer size values. + */ + CSR_WRITE_4(sc, RL_RXCFG, RL_RXCFG_CONFIG); + + /* Set the individual bit to receive frames for this host only. */ + rxcfg = CSR_READ_4(sc, RL_RXCFG); + rxcfg |= RL_RXCFG_RX_INDIV; + + /* If we want promiscuous mode, set the allframes bit. */ + if (ifp->if_flags & IFF_PROMISC) { + rxcfg |= RL_RXCFG_RX_ALLPHYS; + CSR_WRITE_4(sc, RL_RXCFG, rxcfg); + } else { + rxcfg &= ~RL_RXCFG_RX_ALLPHYS; + CSR_WRITE_4(sc, RL_RXCFG, rxcfg); + } + + /* + * Set capture broadcast bit to capture broadcast frames. + */ + if (ifp->if_flags & IFF_BROADCAST) { + rxcfg |= RL_RXCFG_RX_BROAD; + CSR_WRITE_4(sc, RL_RXCFG, rxcfg); + } else { + rxcfg &= ~RL_RXCFG_RX_BROAD; + CSR_WRITE_4(sc, RL_RXCFG, rxcfg); + } + + /* + * Program the multicast filter, if necessary. + */ + rl_setmulti(sc); + + /* + * Enable interrupts. + */ + CSR_WRITE_2(sc, RL_IMR, RL_INTRS); + + /* Start RX/TX process. */ + CSR_WRITE_4(sc, RL_MISSEDPKT, 0); + + /* Enable receiver and transmitter. */ + CSR_WRITE_1(sc, RL_COMMAND, RL_CMD_TX_ENB|RL_CMD_RX_ENB); + + /* Restore state of BMCR */ + if (sc->rl_pinfo != NULL) + rl_phy_writereg(sc, PHY_BMCR, phy_bmcr); + + CSR_WRITE_1(sc, RL_CFG1, RL_CFG1_DRVLOAD|RL_CFG1_FULLDUPLEX); + + ifp->if_flags |= IFF_RUNNING; + ifp->if_flags &= ~IFF_OACTIVE; + + (void)splx(s); + + return; +} + +/* + * Set media options. + */ +static int rl_ifmedia_upd(ifp) + struct ifnet *ifp; +{ + struct rl_softc *sc; + struct ifmedia *ifm; + + sc = ifp->if_softc; + ifm = &sc->ifmedia; + + if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) + return(EINVAL); + + if (IFM_SUBTYPE(ifm->ifm_media) == IFM_AUTO) + rl_autoneg_mii(sc, RL_FLAG_SCHEDDELAY, 1); + else + rl_setmode_mii(sc, ifm->ifm_media); + + return(0); +} + +/* + * Report current media status. + */ +static void rl_ifmedia_sts(ifp, ifmr) + struct ifnet *ifp; + struct ifmediareq *ifmr; +{ + struct rl_softc *sc; + u_int16_t advert = 0, ability = 0; + + sc = ifp->if_softc; + + if (!(rl_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_AUTONEGENBL)) { + if (rl_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_SPEEDSEL) + ifmr->ifm_active = IFM_ETHER|IFM_100_TX; + else + ifmr->ifm_active = IFM_ETHER|IFM_10_T; + + if (rl_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_DUPLEX) + ifmr->ifm_active |= IFM_FDX; + else + ifmr->ifm_active |= IFM_HDX; + return; + } + + ability = rl_phy_readreg(sc, PHY_LPAR); + advert = rl_phy_readreg(sc, PHY_ANAR); + if (advert & PHY_ANAR_100BT4 && + ability & PHY_ANAR_100BT4) { + ifmr->ifm_active = IFM_ETHER|IFM_100_T4; + } else if (advert & PHY_ANAR_100BTXFULL && + ability & PHY_ANAR_100BTXFULL) { + ifmr->ifm_active = IFM_ETHER|IFM_100_TX|IFM_FDX; + } else if (advert & PHY_ANAR_100BTXHALF && + ability & PHY_ANAR_100BTXHALF) { + ifmr->ifm_active = IFM_ETHER|IFM_100_TX|IFM_HDX; + } else if (advert & PHY_ANAR_10BTFULL && + ability & PHY_ANAR_10BTFULL) { + ifmr->ifm_active = IFM_ETHER|IFM_10_T|IFM_FDX; + } else if (advert & PHY_ANAR_10BTHALF && + ability & PHY_ANAR_10BTHALF) { + ifmr->ifm_active = IFM_ETHER|IFM_10_T|IFM_HDX; + } + + return; +} + +static int rl_ioctl(ifp, command, data) + struct ifnet *ifp; + u_long command; + caddr_t data; +{ + struct rl_softc *sc = ifp->if_softc; + struct ifreq *ifr = (struct ifreq *) data; +#ifdef __OpenBSD__ + struct ifaddr *ifa = (struct ifaddr *)data; +#endif + int s, error = 0; + + s = splimp(); + +#ifdef __OpenBSD__ + if ((error = ether_ioctl(ifp, &sc->arpcom, command, data)) > 0) { + splx(s); + return error; + } +#endif + + switch(command) { +#ifdef __FreeBSD__ + case SIOCSIFADDR: + case SIOCGIFADDR: + case SIOCSIFMTU: + error = ether_ioctl(ifp, command, data); + break; +#else + case SIOCSIFADDR: + ifp->if_flags |= IFF_UP; + switch (ifa->ifa_addr->sa_family) { +#ifdef INET + case AF_INET: + rl_init(sc); + arp_ifinit(&sc->arpcom, ifa); + break; +#endif /* INET */ + default: + rl_init(sc); + break; + } + break; +#endif + case SIOCSIFFLAGS: + if (ifp->if_flags & IFF_UP) { + rl_init(sc); + } else { + if (ifp->if_flags & IFF_RUNNING) + rl_stop(sc); + } + error = 0; + break; + case SIOCADDMULTI: + case SIOCDELMULTI: + rl_setmulti(sc); + error = 0; + break; + case SIOCGIFMEDIA: + case SIOCSIFMEDIA: + error = ifmedia_ioctl(ifp, ifr, &sc->ifmedia, command); + break; + default: + error = EINVAL; + break; + } + + (void)splx(s); + + return(error); +} + +static void rl_watchdog(ifp) + struct ifnet *ifp; +{ + struct rl_softc *sc; + + sc = ifp->if_softc; + + if (sc->rl_autoneg) { + rl_autoneg_mii(sc, RL_FLAG_DELAYTIMEO, 1); + return; + } + + printf("rl%d: watchdog timeout\n", sc->rl_unit); + ifp->if_oerrors++; + if (!(rl_phy_readreg(sc, PHY_BMSR) & PHY_BMSR_LINKSTAT)) + printf("rl%d: no carrier - transceiver cable problem?\n", + sc->rl_unit); + rl_txeoc(sc); + rl_txeof(sc); + rl_rxeof(sc); + rl_init(sc); + + return; +} + +/* + * Stop the adapter and free any mbufs allocated to the + * RX and TX lists. + */ +static void rl_stop(sc) + struct rl_softc *sc; +{ + register int i; + struct ifnet *ifp; + + ifp = &sc->arpcom.ac_if; + ifp->if_timer = 0; + + CSR_WRITE_1(sc, RL_COMMAND, 0x00); + CSR_WRITE_2(sc, RL_IMR, 0x0000); + + /* + * Free the TX list buffers. + */ + for (i = 0; i < RL_TX_LIST_CNT; i++) { + if (sc->rl_cdata.rl_tx_chain[i].rl_mbuf != NULL) { + m_freem(sc->rl_cdata.rl_tx_chain[i].rl_mbuf); + sc->rl_cdata.rl_tx_chain[i].rl_mbuf = NULL; + CSR_WRITE_4(sc, RL_TXADDR0 + + sc->rl_cdata.rl_tx_chain[i].rl_desc, 0x00000000); + } + } + + ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); + + return; +} + +#ifdef __FreeBSD__ +/* + * Stop all chip I/O so that the kernel's probe routines don't + * get confused by errant DMAs when rebooting. + */ +static void rl_shutdown(howto, arg) + int howto; + void *arg; +{ + struct rl_softc *sc = (struct rl_softc *)arg; + + rl_stop(sc); + + return; +} + + +static struct pci_device rl_device = { + "rl", + rl_probe, + rl_attach, + &rl_count, + NULL +}; +DATA_SET(pcidevice_set, rl_device); +#endif + +#if defined(__OpenBSD__) + +static int +rl_probe(parent, match, aux) + struct device *parent; + void *match; + void *aux; +{ + struct pci_attach_args *pa = (struct pci_attach_args *) aux; + + if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_REALTEK) { + switch (PCI_PRODUCT(pa->pa_id)) { + case PCI_PRODUCT_REALTEK_RT8129: + case PCI_PRODUCT_REALTEK_RT8139: + return 1; + } + return 0; + } + + if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_REALTEK2) { + switch (PCI_PRODUCT(pa->pa_id)) { + case PCI_PRODUCT_REALTEK2_RT8139: + return 1; + } + } + + return 0; +} + +static void +rl_attach(parent, self, aux) + struct device *parent, *self; + void *aux; +{ + struct rl_softc *sc = (struct rl_softc *)self; + struct pci_attach_args *pa = aux; + pci_chipset_tag_t pc = pa->pa_pc; + pci_intr_handle_t ih; + const char *intrstr = NULL; + u_int8_t enaddr[ETHER_ADDR_LEN]; + struct ifnet *ifp = &sc->arpcom.ac_if; + bus_addr_t iobase; + bus_size_t iosize; + bus_dma_segment_t seg; + int rseg; + caddr_t kva; + u_int32_t command; + u_int16_t phy_vid, phy_did, phy_sts, rl_did; + int media; + struct rl_type *p; + + sc->rl_unit = sc->sc_dev.dv_unit; + command = pci_conf_read(pa->pa_pc, pa->pa_tag, RL_PCI_CAPID) & 0xff; + if (command == 0x01) { + command = pci_conf_read(pa->pa_pc, pa->pa_tag, + RL_PCI_PWRMGMTCTRL); + if (command & RL_PSTATE_MASK) { + /* Reset the power state. */ + printf("%s: chip is in D%d power mode " + "-- setting to D0\n", + sc->sc_dev.dv_xname, command & RL_PSTATE_MASK); + command &= 0xfffffffc; + pci_conf_write(pa->pa_pc, pa->pa_tag, + RL_PCI_PWRMGMTCTRL, command); + } + } + + command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); + command |= PCI_COMMAND_IO_ENABLE | + PCI_COMMAND_MEM_ENABLE | + PCI_COMMAND_MASTER_ENABLE; + pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command); + +#ifdef RL_USEIOSPACE + if (!(command & PCI_COMMAND_IO_ENABLE)) { + printf(": failed to enable i/o ports\n"); + return; + } + + /* + * Map control/status registers. + */ + if (pci_io_find(pc, pa->pa_tag, RL_PCI_LOIO, &iobase, &iosize)) { + printf(": can't find i/o space\n"); + return; + } + if (bus_space_map(pa->pa_iot, iobase, iosize, 0, &sc->sc_sh)) { + printf(": can't map i/o space\n"); + return; + } + sc->sc_st = pa->pa_iot; +#else + if (!(command & PCI_COMMAND_MEM_ENABLE)) { + printf(": failed to enable memory mapping\n"); + return; + } + if (pci_mem_find(pc, pa->pa_tag, RL_PCI_LOMEM, &iobase, &iosize, NULL)){ + printf(": can't find mem space\n"); + return; + } + if (bus_space_map(pa->pa_memt, iobase, iosize, 0, &sc->sc_sh)) { + printf(":can't map mem space\n"); + return; + } + sc->sc_st = pa->pa_memt; +#endif + + /* + * Allocate our interrupt. + */ + if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin, + pa->pa_intrline, &ih)) { + printf(": couldn't map interrupt\n"); + return; + } + + intrstr = pci_intr_string(pc, ih); + sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, rl_intr, sc, + self->dv_xname); + if (sc->sc_ih == NULL) { + printf(": couldn't establish interrupt"); + if (intrstr != NULL) + printf(" at %s", intrstr); + printf("\n"); + return; + } + printf(": %s", intrstr); + + rl_reset(sc); + + rl_read_eeprom(sc, (caddr_t)&enaddr, RL_EE_EADDR, 3, 0); + bcopy(enaddr, (char *)&sc->arpcom.ac_enaddr, ETHER_ADDR_LEN); + printf(" address %s\n", ether_sprintf(sc->arpcom.ac_enaddr)); + + rl_read_eeprom(sc, (caddr_t)&rl_did, RL_EE_PCI_DID, 1, 0); + + if (rl_did == RT_DEVICEID_8139) + sc->rl_type = RL_8139; + else if (rl_did == RT_DEVICEID_8129) + sc->rl_type = RL_8129; + else { + printf("\n%s: unknown device id: %x\n", sc->sc_dev.dv_xname, + rl_did); + return; + } + + sc->sc_dmat = pa->pa_dmat; + if (bus_dmamem_alloc(sc->sc_dmat, RL_RXBUFLEN + 16, PAGE_SIZE, 0, &seg, + 1, &rseg, BUS_DMA_NOWAIT)) { + printf("\n%s: cannot alloc rx buffers\n", sc->sc_dev.dv_xname); + return; + } + if (bus_dmamem_map(sc->sc_dmat, &seg, rseg, RL_RXBUFLEN + 16, &kva, + BUS_DMA_NOWAIT | BUS_DMAMEM_NOSYNC)) { + printf("\n%s: cannot map dma buffers (%d bytes)\n", + sc->sc_dev.dv_xname, RL_RXBUFLEN + 16); + bus_dmamem_free(sc->sc_dmat, &seg, rseg); + return; + } + sc->sc_dma_mapsize = RL_RXBUFLEN + 16; + if (bus_dmamap_create(sc->sc_dmat, RL_RXBUFLEN + 16, 1, + RL_RXBUFLEN + 16, 0, BUS_DMA_NOWAIT, &sc->sc_dma_prog)) { + printf("\n%s: cannot create dma map\n"); + bus_dmamem_unmap(sc->sc_dmat, kva, RL_RXBUFLEN + 16); + bus_dmamem_free(sc->sc_dmat, &seg, rseg); + return; + } + if (bus_dmamap_load(sc->sc_dmat, sc->sc_dma_prog, kva, + RL_RXBUFLEN + 16, NULL, BUS_DMA_NOWAIT)) { + printf("%s: cannot load dma map\n"); + bus_dmamem_unmap(sc->sc_dmat, kva, RL_RXBUFLEN + 16); + bus_dmamem_free(sc->sc_dmat, &seg, rseg); + bus_dmamap_destroy(sc->sc_dmat, sc->sc_dma_prog); + } + sc->rl_cdata.rl_rx_buf = (caddr_t) kva; + bzero(sc->rl_cdata.rl_rx_buf, RL_RXBUFLEN + 16); + + ifp->if_softc = sc; + ifp->if_mtu = ETHERMTU; + ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; + ifp->if_ioctl = rl_ioctl; + ifp->if_output = ether_output; + ifp->if_start = rl_start; + ifp->if_watchdog = rl_watchdog; + ifp->if_baudrate = 10000000; + bcopy(sc->sc_dev.dv_xname, ifp->if_xname, IFNAMSIZ); + + if (sc->rl_type == RL_8129) { + int i; + + if (bootverbose) + printf("%s: probing for a PHY\n", sc->sc_dev.dv_xname); + for (i = RL_PHYADDR_MIN; i < RL_PHYADDR_MAX + 1; i++) { + if (bootverbose) + printf("%s: checking address: %d\n", + sc->sc_dev.dv_xname, i); + sc->rl_phy_addr = i; + rl_phy_writereg(sc, PHY_BMCR, PHY_BMCR_RESET); + DELAY(500); + while (rl_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_RESET); + if ((phy_sts = rl_phy_readreg(sc, PHY_BMSR))) + break; + } + if (phy_sts) { + phy_vid = rl_phy_readreg(sc, PHY_VENID); + phy_did = rl_phy_readreg(sc, PHY_DEVID); + if (bootverbose) + printf("%s: found PHY at address %d, ", + sc->sc_dev.dv_xname, sc->rl_phy_addr); + if (bootverbose) + printf("vendor id: %x device id: %x\n", + phy_vid, phy_did); + p = rl_phys; + while (p->rl_vid) { + if (phy_vid == p->rl_vid && + (phy_did | 0xf) == p->rl_did) { + sc->rl_pinfo = p; + break; + } + p++; + } + if (sc->rl_pinfo == NULL) + sc->rl_pinfo = &rl_phys[PHY_UNKNOWN]; + if (bootverbose) + printf("%s: PHY type: %s\n", + sc->sc_dev.dv_xname, sc->rl_pinfo->rl_name); + } + else { + printf("%s: MII without any phy!\n", + sc->rl_pinfo->rl_name); + } + } + + ifmedia_init(&sc->ifmedia, 0, rl_ifmedia_upd, rl_ifmedia_sts); + rl_getmode_mii(sc); + + /* + * Choose default media. + */ + media = IFM_ETHER | IFM_AUTO; + ifmedia_set(&sc->ifmedia, media); + rl_autoneg_mii(sc, RL_FLAG_FORCEDELAY, 1); + + /* + * Attach us everywhere + */ + if_attach(ifp); + ether_ifattach(ifp); + +#if NBPFILTER > 0 + bpfattach(&sc->arpcom.ac_if.if_bpf, ifp, + DLT_EN10MB, sizeof(struct ether_header)); + +#endif + shutdownhook_establish(rl_shutdown, sc); +} + +static void rl_shutdown(arg) + void *arg; +{ + struct rl_softc *sc = (struct rl_softc *)arg; + + rl_stop(sc); + + return; +} + +struct cfattach rl_ca = { + sizeof(struct rl_softc), rl_probe, rl_attach, +}; + +struct cfdriver rl_cd = { + 0, "rl", DV_IFNET +}; + +#endif |