if_ex.c revision 55953
121769Sjkh/* 221769Sjkh * Copyright (c) 1996, Javier Mart�n Rueda (jmrueda@diatel.upm.es) 321769Sjkh * All rights reserved. 421769Sjkh * 521769Sjkh * Redistribution and use in source and binary forms, with or without 621769Sjkh * modification, are permitted provided that the following conditions 721769Sjkh * are met: 821769Sjkh * 1. Redistributions of source code must retain the above copyright 921769Sjkh * notice unmodified, this list of conditions, and the following 1021769Sjkh * disclaimer. 1121769Sjkh * 2. Redistributions in binary form must reproduce the above copyright 1221769Sjkh * notice, this list of conditions and the following disclaimer in the 1321769Sjkh * documentation and/or other materials provided with the distribution. 1421769Sjkh * 1521769Sjkh * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1621769Sjkh * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1721769Sjkh * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1821769Sjkh * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1921769Sjkh * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2021769Sjkh * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2121769Sjkh * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2221769Sjkh * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2321769Sjkh * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2421769Sjkh * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2521769Sjkh * SUCH DAMAGE. 2629877Smsmith * 2750477Speter * $FreeBSD: head/sys/dev/ex/if_ex.c 55953 2000-01-14 07:14:17Z peter $ 2852286Smdodd * 2952286Smdodd * MAINTAINER: Matthew N. Dodd <winter@jurai.net> 3052286Smdodd * <mdodd@FreeBSD.org> 3121769Sjkh */ 3221769Sjkh 3321769Sjkh/* 3429877Smsmith * Intel EtherExpress Pro/10, Pro/10+ Ethernet driver 3521769Sjkh * 3621769Sjkh * Revision history: 3721769Sjkh * 3821769Sjkh * 30-Oct-1996: first beta version. Inet and BPF supported, but no multicast. 3921769Sjkh */ 4021769Sjkh 4121769Sjkh#include "ex.h" 4221769Sjkh 4321769Sjkh#include <sys/param.h> 4421769Sjkh#include <sys/systm.h> 4552286Smdodd#include <sys/kernel.h> 4621769Sjkh#include <sys/conf.h> 4724204Sbde#include <sys/sockio.h> 4821769Sjkh#include <sys/mbuf.h> 4921769Sjkh#include <sys/socket.h> 5021769Sjkh 5152286Smdodd#include <sys/module.h> 5252286Smdodd#include <sys/bus.h> 5352286Smdodd 5452286Smdodd#include <machine/bus.h> 5552286Smdodd#include <machine/resource.h> 5652286Smdodd#include <sys/rman.h> 5752286Smdodd 5850026Smdodd#include <net/ethernet.h> 5921769Sjkh#include <net/if.h> 6021769Sjkh 6150026Smdodd#include <netinet/in.h> 6250026Smdodd#include <netinet/if_ether.h> 6350026Smdodd 6421769Sjkh#include <net/bpf.h> 6521769Sjkh 6621769Sjkh#include <machine/clock.h> 6721769Sjkh 6852286Smdodd#include <isa/isavar.h> 6952286Smdodd#include <isa/pnpvar.h> 7052286Smdodd 7155953Speter#include <dev/ex/if_exreg.h> 7221769Sjkh 7321769Sjkh#ifdef EXDEBUG 7452286Smdodd# define Start_End 1 7552286Smdodd# define Rcvd_Pkts 2 7652286Smdodd# define Sent_Pkts 4 7752286Smdodd# define Status 8 7821769Sjkhstatic int debug_mask = 0; 7921769Sjkhstatic int exintr_count = 0; 8052286Smdodd# define DODEBUG(level, action) if (level & debug_mask) action 8121769Sjkh#else 8252286Smdodd# define DODEBUG(level, action) 8321769Sjkh#endif 8421769Sjkh 8521769Sjkh#define Conn_BNC 1 8621769Sjkh#define Conn_TPE 2 8721769Sjkh#define Conn_AUI 3 8821769Sjkh 8952286Smdodd#define CARD_TYPE_EX_10 1 9052286Smdodd#define CARD_TYPE_EX_10_PLUS 2 9152286Smdodd 9221769Sjkhstruct ex_softc { 9352286Smdodd struct arpcom arpcom; /* Ethernet common data */ 9452286Smdodd 9552286Smdodd device_t dev; 9652286Smdodd struct resource *ioport; 9752286Smdodd struct resource *irq; 9852286Smdodd 9952286Smdodd u_int iobase; /* I/O base address. */ 10052286Smdodd u_short irq_no; /* IRQ number. */ 10152286Smdodd 10252286Smdodd char * irq2ee; /* irq <-> internal */ 10352286Smdodd u_char * ee2irq; /* representation conversion */ 10452286Smdodd 10552286Smdodd u_short connector; /* Connector type. */ 10652286Smdodd 10752286Smdodd u_int mem_size; /* Total memory size, in bytes. */ 10852286Smdodd u_int rx_mem_size; /* Rx memory size (by default, */ 10952286Smdodd /* first 3/4 of total memory). */ 11052286Smdodd 11152286Smdodd u_int rx_lower_limit; /* Lower and upper limits of */ 11252286Smdodd u_int rx_upper_limit; /* receive buffer. */ 11352286Smdodd 11452286Smdodd u_int rx_head; /* Head of receive ring buffer. */ 11552286Smdodd u_int tx_mem_size; /* Tx memory size (by default, */ 11652286Smdodd /* last quarter of total memory).*/ 11752286Smdodd 11852286Smdodd u_int tx_lower_limit; /* Lower and upper limits of */ 11952286Smdodd u_int tx_upper_limit; /* transmit buffer. */ 12052286Smdodd 12152286Smdodd u_int tx_head; /* Head and tail of */ 12252286Smdodd u_int tx_tail; /* transmit ring buffer. */ 12352286Smdodd 12452286Smdodd u_int tx_last; /* Pointer to beginning of last */ 12552286Smdodd /* frame in the chain. */ 12621769Sjkh}; 12721769Sjkh 12852286Smdoddstatic char irq2eemap[] = 12952286Smdodd { -1, -1, 0, 1, -1, 2, -1, -1, -1, 0, 3, 4, -1, -1, -1, -1 }; 13052286Smdoddstatic u_char ee2irqmap[] = 13152286Smdodd { 9, 3, 5, 10, 11, 0, 0, 0 }; 13221769Sjkh 13352286Smdoddstatic char plus_irq2eemap[] = 13452286Smdodd { -1, -1, -1, 0, 1, 2, -1, 3, -1, 4, 5, 6, 7, -1, -1, -1 }; 13552286Smdoddstatic u_char plus_ee2irqmap[] = 13652286Smdodd { 3, 4, 5, 7, 9, 10, 11, 12 }; 13721769Sjkh 13852286Smdodd/* Bus Front End Functions */ 13955882Smdoddstatic void ex_isa_identify __P((driver_t *, device_t)); 14052286Smdoddstatic int ex_isa_probe __P((device_t)); 14155883Smdoddstatic int ex_isa_attach __P((device_t)); 14221769Sjkh 14352286Smdodd/* Network Interface Functions */ 14452286Smdoddstatic void ex_init __P((void *)); 14552286Smdoddstatic void ex_start __P((struct ifnet *)); 14652286Smdoddstatic int ex_ioctl __P((struct ifnet *, u_long, caddr_t)); 14752286Smdoddstatic void ex_watchdog __P((struct ifnet *)); 14821769Sjkh 14952286Smdoddstatic void ex_stop __P((struct ex_softc *)); 15052286Smdoddstatic void ex_reset __P((struct ex_softc *)); 15152286Smdodd 15255883Smdoddstatic driver_intr_t ex_intr; 15352286Smdoddstatic void ex_tx_intr __P((struct ex_softc *)); 15452286Smdoddstatic void ex_rx_intr __P((struct ex_softc *)); 15552286Smdodd 15652286Smdoddstatic u_short eeprom_read __P((int, int)); 15752286Smdodd 15852286Smdoddstatic device_method_t ex_methods[] = { 15952286Smdodd /* Device interface */ 16055882Smdodd DEVMETHOD(device_identify, ex_isa_identify), 16152286Smdodd DEVMETHOD(device_probe, ex_isa_probe), 16255883Smdodd DEVMETHOD(device_attach, ex_isa_attach), 16352286Smdodd 16452286Smdodd { 0, 0 } 16552286Smdodd}; 16652286Smdodd 16752286Smdoddstatic driver_t ex_driver = { 16821769Sjkh "ex", 16952286Smdodd ex_methods, 17052286Smdodd sizeof(struct ex_softc), 17121769Sjkh}; 17221769Sjkh 17352286Smdoddstatic devclass_t ex_devclass; 17452286Smdodd 17552286SmdoddDRIVER_MODULE(ex, isa, ex_driver, ex_devclass, 0, 0); 17652286Smdodd 17752286Smdoddstatic struct isa_pnp_id ex_ids[] = { 17852286Smdodd { 0x3110d425, NULL }, /* INT1031 */ 17952286Smdodd { 0x3010d425, NULL }, /* INT1030 */ 18052286Smdodd { 0, NULL }, 18152286Smdodd}; 18252286Smdodd 18355883Smdoddstatic int 18455883Smdoddlook_for_card (u_int iobase) 18521769Sjkh{ 18621769Sjkh int count1, count2; 18721769Sjkh 18821769Sjkh /* 18921769Sjkh * Check for the i82595 signature, and check that the round robin 19021769Sjkh * counter actually advances. 19121769Sjkh */ 19221769Sjkh if (((count1 = inb(iobase + ID_REG)) & Id_Mask) != Id_Sig) 19321769Sjkh return(0); 19421769Sjkh count2 = inb(iobase + ID_REG); 19521769Sjkh count2 = inb(iobase + ID_REG); 19621769Sjkh count2 = inb(iobase + ID_REG); 19752286Smdodd 19821769Sjkh return((count2 & Counter_bits) == ((count1 + 0xc0) & Counter_bits)); 19921769Sjkh} 20021769Sjkh 20152286Smdoddstatic int 20252286Smdoddex_get_media (u_int32_t iobase) 20352286Smdodd{ 20452286Smdodd int tmp; 20521769Sjkh 20652286Smdodd outb(iobase + CMD_REG, Bank2_Sel); 20752286Smdodd tmp = inb(iobase + REG3); 20852286Smdodd outb(iobase + CMD_REG, Bank0_Sel); 20952286Smdodd 21052286Smdodd if (tmp & TPE_bit) 21152286Smdodd return(Conn_TPE); 21252286Smdodd if (tmp & BNC_bit) 21352286Smdodd return(Conn_BNC); 21452286Smdodd 21552286Smdodd return (Conn_AUI); 21652286Smdodd} 21752286Smdodd 21852286Smdoddstatic void 21952286Smdoddex_get_address (u_int32_t iobase, u_char *enaddr) 22021769Sjkh{ 22152286Smdodd u_int16_t eaddr_tmp; 22221769Sjkh 22352286Smdodd eaddr_tmp = eeprom_read(iobase, EE_Eth_Addr_Lo); 22452286Smdodd enaddr[5] = eaddr_tmp & 0xff; 22552286Smdodd enaddr[4] = eaddr_tmp >> 8; 22652286Smdodd eaddr_tmp = eeprom_read(iobase, EE_Eth_Addr_Mid); 22752286Smdodd enaddr[3] = eaddr_tmp & 0xff; 22852286Smdodd enaddr[2] = eaddr_tmp >> 8; 22952286Smdodd eaddr_tmp = eeprom_read(iobase, EE_Eth_Addr_Hi); 23052286Smdodd enaddr[1] = eaddr_tmp & 0xff; 23152286Smdodd enaddr[0] = eaddr_tmp >> 8; 23252286Smdodd 23352286Smdodd return; 23452286Smdodd} 23521769Sjkh 23652286Smdoddstatic int 23752286Smdoddex_card_type (u_char *enaddr) 23852286Smdodd{ 23952286Smdodd if ((enaddr[0] == 0x00) && (enaddr[1] == 0xA0) && (enaddr[2] == 0xC9)) 24052286Smdodd return (CARD_TYPE_EX_10_PLUS); 24152286Smdodd 24252286Smdodd return (CARD_TYPE_EX_10); 24352286Smdodd} 24452286Smdodd 24555882Smdodd/* 24655882Smdodd * Non-destructive identify. 24755882Smdodd */ 24855882Smdoddstatic void 24955882Smdoddex_isa_identify (driver_t *driver, device_t parent) 25055882Smdodd{ 25155882Smdodd device_t child; 25255882Smdodd u_int32_t ioport; 25355882Smdodd u_char enaddr[6]; 25455882Smdodd u_int irq; 25555882Smdodd int tmp; 25655882Smdodd const char * desc; 25755882Smdodd 25855882Smdodd for (ioport = 0x200; ioport < 0x3a0; ioport += 0x10) { 25955882Smdodd 26055882Smdodd /* No board found at address */ 26155882Smdodd if (!look_for_card(ioport)) { 26255882Smdodd continue; 26355882Smdodd } 26455882Smdodd 26555882Smdodd /* Board in PnP mode */ 26655882Smdodd if (eeprom_read(ioport, 0) & 0x01) { 26755882Smdodd continue; 26855882Smdodd } 26955882Smdodd 27055882Smdodd bzero(enaddr, sizeof(enaddr)); 27155882Smdodd 27255882Smdodd /* Reset the card. */ 27355882Smdodd outb(ioport + CMD_REG, Reset_CMD); 27455882Smdodd DELAY(400); 27555882Smdodd 27655882Smdodd ex_get_address(ioport, enaddr); 27755882Smdodd tmp = eeprom_read(ioport, EE_IRQ_No) & IRQ_No_Mask; 27855882Smdodd 27955882Smdodd /* work out which set of irq <-> internal tables to use */ 28055882Smdodd if (ex_card_type(enaddr) == CARD_TYPE_EX_10_PLUS) { 28155882Smdodd irq = plus_ee2irqmap[tmp]; 28255882Smdodd desc = "Intel Pro/10+"; 28355882Smdodd } else { 28455882Smdodd irq = ee2irqmap[tmp]; 28555882Smdodd desc = "Intel Pro/10"; 28655882Smdodd } 28755882Smdodd 28855882Smdodd child = BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "ex", -1); 28955882Smdodd device_set_desc_copy(child, desc); 29055882Smdodd device_set_driver(child, driver); 29155882Smdodd bus_set_resource(child, SYS_RES_IRQ, 0, irq, 1); 29255882Smdodd bus_set_resource(child, SYS_RES_IOPORT, 0, ioport, EX_IOSIZE); 29355882Smdodd } 29455882Smdodd 29555882Smdodd return; 29655882Smdodd} 29755882Smdodd 29852286Smdoddstatic int 29952286Smdoddex_isa_probe(device_t dev) 30052286Smdodd{ 30152286Smdodd u_int iobase; 30252286Smdodd u_int irq; 30352286Smdodd char * irq2ee; 30452286Smdodd u_char * ee2irq; 30552286Smdodd u_char enaddr[6]; 30652286Smdodd int tmp; 30752286Smdodd int error; 30852286Smdodd 30952286Smdodd DODEBUG(Start_End, printf("ex_probe: start\n");); 31052286Smdodd 31152286Smdodd /* Check isapnp ids */ 31252286Smdodd error = ISA_PNP_PROBE(device_get_parent(dev), dev, ex_ids); 31352286Smdodd 31452286Smdodd /* If the card had a PnP ID that didn't match any we know about */ 31552286Smdodd if (error == ENXIO) { 31652286Smdodd return(error); 31752286Smdodd } 31852286Smdodd 31952286Smdodd /* If we had some other problem. */ 32052286Smdodd if (!(error == 0 || error == ENOENT)) { 32152286Smdodd return(error); 32252286Smdodd } 32352286Smdodd 32452286Smdodd iobase = bus_get_resource_start(dev, SYS_RES_IOPORT, 0); 32555882Smdodd if (iobase && !look_for_card(iobase)) { 32655882Smdodd printf("ex: no card found at 0x%03x\n", iobase); 32755882Smdodd return(ENXIO); 32821769Sjkh } 32921769Sjkh 33021769Sjkh /* 33121769Sjkh * Reset the card. 33221769Sjkh */ 33321769Sjkh outb(iobase + CMD_REG, Reset_CMD); 33429313Smsmith DELAY(400); 33521769Sjkh 33652286Smdodd ex_get_address(iobase, enaddr); 33752286Smdodd 33852286Smdodd /* work out which set of irq <-> internal tables to use */ 33952286Smdodd if (ex_card_type(enaddr) == CARD_TYPE_EX_10_PLUS) { 34052286Smdodd irq2ee = plus_irq2eemap; 34152286Smdodd ee2irq = plus_ee2irqmap; 34252286Smdodd } else { 34352286Smdodd irq2ee = irq2eemap; 34452286Smdodd ee2irq = ee2irqmap; 34552286Smdodd } 34652286Smdodd 34752286Smdodd tmp = eeprom_read(iobase, EE_IRQ_No) & IRQ_No_Mask; 34852286Smdodd irq = bus_get_resource_start(dev, SYS_RES_IRQ, 0); 34952286Smdodd 35052286Smdodd if (irq > 0) { 35155882Smdodd /* This will happen if board is in PnP mode. */ 35252286Smdodd if (ee2irq[tmp] != irq) { 35352286Smdodd printf("ex: WARNING: board's EEPROM is configured" 35452286Smdodd " for IRQ %d, using %d\n", 35552286Smdodd ee2irq[tmp], irq); 35652286Smdodd } 35752286Smdodd } else { 35852286Smdodd irq = ee2irq[tmp]; 35952286Smdodd bus_set_resource(dev, SYS_RES_IRQ, 0, irq, 1); 36052286Smdodd } 36152286Smdodd 36252286Smdodd if (irq == 0) { 36352286Smdodd printf("ex: invalid IRQ.\n"); 36452286Smdodd return(ENXIO); 36552286Smdodd } 36652286Smdodd 36752286Smdodd DODEBUG(Start_End, printf("ex_probe: finish\n");); 36852286Smdodd 36952286Smdodd return(0); 37052286Smdodd} 37152286Smdodd 37255883Smdoddstatic int 37355883Smdoddex_isa_attach(device_t dev) 37452286Smdodd{ 37552286Smdodd struct ex_softc * sc = device_get_softc(dev); 37652286Smdodd struct ifnet * ifp = &sc->arpcom.ac_if; 37752286Smdodd int unit = device_get_unit(dev); 37852286Smdodd int error; 37952286Smdodd int rid; 38052286Smdodd void * ih; 38152286Smdodd 38252286Smdodd DODEBUG(Start_End, device_printf(dev, "start\n");); 38352286Smdodd 38452286Smdodd rid = 0; 38552286Smdodd sc->ioport = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 38652286Smdodd 0, ~0, 1, RF_ACTIVE); 38752286Smdodd 38852286Smdodd if (!sc->ioport) { 38952286Smdodd device_printf(dev, "No I/O space?!\n"); 39052286Smdodd goto bad; 39152286Smdodd } 39252286Smdodd 39352286Smdodd rid = 0; 39452286Smdodd sc->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 39552286Smdodd 0, ~0, 1, RF_ACTIVE); 39652286Smdodd 39752286Smdodd if (!sc->irq) { 39852286Smdodd device_printf(dev, "No IRQ?!\n"); 39952286Smdodd goto bad; 40052286Smdodd } 40152286Smdodd 40252286Smdodd error = bus_setup_intr(dev, sc->irq, INTR_TYPE_NET, 40355883Smdodd ex_intr, (void *)sc, &ih); 40452286Smdodd 40552286Smdodd if (error) { 40652286Smdodd device_printf(dev, "bus_setup_intr() failed!\n"); 40752286Smdodd goto bad; 40852286Smdodd } 40952286Smdodd 41021769Sjkh /* 41121769Sjkh * Fill in several fields of the softc structure: 41221769Sjkh * - I/O base address. 41321769Sjkh * - Hardware Ethernet address. 41421769Sjkh * - IRQ number (if not supplied in config file, read it from EEPROM). 41521769Sjkh * - Connector type. 41621769Sjkh */ 41752286Smdodd sc->dev = dev; 41852286Smdodd sc->iobase = rman_get_start(sc->ioport); 41952286Smdodd sc->irq_no = rman_get_start(sc->irq); 42029877Smsmith 42152286Smdodd ex_get_address(sc->iobase, sc->arpcom.ac_enaddr); 42252286Smdodd 42329877Smsmith /* work out which set of irq <-> internal tables to use */ 42452286Smdodd if (ex_card_type(sc->arpcom.ac_enaddr) == CARD_TYPE_EX_10_PLUS) { 42529877Smsmith sc->irq2ee = plus_irq2eemap; 42629877Smsmith sc->ee2irq = plus_ee2irqmap; 42752286Smdodd } else { 42829877Smsmith sc->irq2ee = irq2eemap; 42929877Smsmith sc->ee2irq = ee2irqmap; 43029877Smsmith } 43129877Smsmith 43252286Smdodd sc->connector = ex_get_media(sc->iobase); 43321769Sjkh sc->mem_size = CARD_RAM_SIZE; /* XXX This should be read from the card itself. */ 43421769Sjkh 43521769Sjkh /* 43621769Sjkh * Initialize the ifnet structure. 43721769Sjkh */ 43821769Sjkh ifp->if_softc = sc; 43921769Sjkh ifp->if_unit = unit; 44021769Sjkh ifp->if_name = "ex"; 44155883Smdodd ifp->if_mtu = ETHERMTU; 44255883Smdodd ifp->if_flags = IFF_SIMPLEX | IFF_BROADCAST /* XXX not done yet. | IFF_MULTICAST */; 44321769Sjkh ifp->if_output = ether_output; 44421769Sjkh ifp->if_start = ex_start; 44521769Sjkh ifp->if_ioctl = ex_ioctl; 44621769Sjkh ifp->if_watchdog = ex_watchdog; 44755883Smdodd ifp->if_init = ex_init; 44855883Smdodd ifp->if_snd.ifq_maxlen = IFQ_MAXLEN; 44921769Sjkh 45021769Sjkh /* 45121769Sjkh * Attach the interface. 45221769Sjkh */ 45321769Sjkh if_attach(ifp); 45421769Sjkh ether_ifattach(ifp); 45521769Sjkh 45655883Smdodd device_printf(sc->dev, "Ethernet address %6D\n", 45755883Smdodd sc->arpcom.ac_enaddr, ":"); 45821769Sjkh 45921769Sjkh /* 46021769Sjkh * If BPF is in the kernel, call the attach for it 46121769Sjkh */ 46221769Sjkh bpfattach(ifp, DLT_EN10MB, sizeof(struct ether_header)); 46355883Smdodd DODEBUG(Start_End, printf("ex_isa_attach%d: finish\n", unit);); 46452286Smdodd 46552286Smdodd return(0); 46652286Smdoddbad: 46752286Smdodd 46852286Smdodd if (sc->ioport) 46952286Smdodd bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->ioport); 47052286Smdodd if (sc->irq) 47152286Smdodd bus_release_resource(dev, SYS_RES_IRQ, 0, sc->irq); 47252286Smdodd 47352286Smdodd return (-1); 47421769Sjkh} 47521769Sjkh 47621769Sjkh 47755883Smdoddstatic void 47855883Smdoddex_init(void *xsc) 47921769Sjkh{ 48052286Smdodd struct ex_softc * sc = (struct ex_softc *) xsc; 48152286Smdodd struct ifnet * ifp = &sc->arpcom.ac_if; 48252286Smdodd int s; 48352286Smdodd int i; 48452286Smdodd register int iobase = sc->iobase; 48552286Smdodd unsigned short temp_reg; 48621769Sjkh 48721769Sjkh DODEBUG(Start_End, printf("ex_init%d: start\n", ifp->if_unit);); 48821769Sjkh 48952286Smdodd if (ifp->if_addrhead.tqh_first == NULL) { 49052286Smdodd return; 49152286Smdodd } 49221769Sjkh s = splimp(); 49321769Sjkh sc->arpcom.ac_if.if_timer = 0; 49421769Sjkh 49521769Sjkh /* 49621769Sjkh * Load the ethernet address into the card. 49721769Sjkh */ 49821769Sjkh outb(iobase + CMD_REG, Bank2_Sel); 49921769Sjkh temp_reg = inb(iobase + EEPROM_REG); 50052286Smdodd if (temp_reg & Trnoff_Enable) { 50152286Smdodd outb(iobase + EEPROM_REG, temp_reg & ~Trnoff_Enable); 50252286Smdodd } 50352286Smdodd for (i = 0; i < ETHER_ADDR_LEN; i++) { 50452286Smdodd outb(iobase + I_ADDR_REG0 + i, sc->arpcom.ac_enaddr[i]); 50552286Smdodd } 50621769Sjkh /* 50721769Sjkh * - Setup transmit chaining and discard bad received frames. 50821769Sjkh * - Match broadcast. 50921769Sjkh * - Clear test mode. 51021769Sjkh * - Set receiving mode. 51121769Sjkh * - Set IRQ number. 51221769Sjkh */ 51321769Sjkh outb(iobase + REG1, inb(iobase + REG1) | Tx_Chn_Int_Md | Tx_Chn_ErStp | Disc_Bad_Fr); 51421769Sjkh outb(iobase + REG2, inb(iobase + REG2) | No_SA_Ins | RX_CRC_InMem); 51526545Sgibbs outb(iobase + REG3, inb(iobase + REG3) & 0x3f /* XXX constants. */ ); 51621769Sjkh outb(iobase + CMD_REG, Bank1_Sel); 51729877Smsmith outb(iobase + INT_NO_REG, (inb(iobase + INT_NO_REG) & 0xf8) | sc->irq2ee[sc->irq_no]); 51821769Sjkh 51921769Sjkh /* 52021769Sjkh * Divide the available memory in the card into rcv and xmt buffers. 52121769Sjkh * By default, I use the first 3/4 of the memory for the rcv buffer, 52221769Sjkh * and the remaining 1/4 of the memory for the xmt buffer. 52321769Sjkh */ 52421769Sjkh sc->rx_mem_size = sc->mem_size * 3 / 4; 52521769Sjkh sc->tx_mem_size = sc->mem_size - sc->rx_mem_size; 52621769Sjkh sc->rx_lower_limit = 0x0000; 52721769Sjkh sc->rx_upper_limit = sc->rx_mem_size - 2; 52821769Sjkh sc->tx_lower_limit = sc->rx_mem_size; 52921769Sjkh sc->tx_upper_limit = sc->mem_size - 2; 53021769Sjkh outb(iobase + RCV_LOWER_LIMIT_REG, sc->rx_lower_limit >> 8); 53121769Sjkh outb(iobase + RCV_UPPER_LIMIT_REG, sc->rx_upper_limit >> 8); 53221769Sjkh outb(iobase + XMT_LOWER_LIMIT_REG, sc->tx_lower_limit >> 8); 53321769Sjkh outb(iobase + XMT_UPPER_LIMIT_REG, sc->tx_upper_limit >> 8); 53421769Sjkh 53521769Sjkh /* 53621769Sjkh * Enable receive and transmit interrupts, and clear any pending int. 53721769Sjkh */ 53821769Sjkh outb(iobase + REG1, inb(iobase + REG1) | TriST_INT); 53921769Sjkh outb(iobase + CMD_REG, Bank0_Sel); 54021769Sjkh outb(iobase + MASK_REG, All_Int & ~(Rx_Int | Tx_Int)); 54121769Sjkh outb(iobase + STATUS_REG, All_Int); 54221769Sjkh 54321769Sjkh /* 54421769Sjkh * Initialize receive and transmit ring buffers. 54521769Sjkh */ 54621769Sjkh outw(iobase + RCV_BAR, sc->rx_lower_limit); 54721769Sjkh sc->rx_head = sc->rx_lower_limit; 54826545Sgibbs outw(iobase + RCV_STOP_REG, sc->rx_upper_limit | 0xfe); 54921769Sjkh outw(iobase + XMT_BAR, sc->tx_lower_limit); 55021769Sjkh sc->tx_head = sc->tx_tail = sc->tx_lower_limit; 55121769Sjkh 55221769Sjkh ifp->if_flags |= IFF_RUNNING; 55321769Sjkh ifp->if_flags &= ~IFF_OACTIVE; 55421769Sjkh DODEBUG(Status, printf("OIDLE init\n");); 55521769Sjkh 55621769Sjkh /* 55721769Sjkh * Final reset of the board, and enable operation. 55821769Sjkh */ 55921769Sjkh outb(iobase + CMD_REG, Sel_Reset_CMD); 56021769Sjkh DELAY(2); 56121769Sjkh outb(iobase + CMD_REG, Rcv_Enable_CMD); 56221769Sjkh 56321769Sjkh ex_start(ifp); 56421769Sjkh splx(s); 56521769Sjkh 56621769Sjkh DODEBUG(Start_End, printf("ex_init%d: finish\n", ifp->if_unit);); 56721769Sjkh} 56821769Sjkh 56921769Sjkh 57055883Smdoddstatic void 57152286Smdoddex_start(struct ifnet *ifp) 57221769Sjkh{ 57352286Smdodd struct ex_softc * sc = ifp->if_softc; 57452286Smdodd int iobase = sc->iobase; 57552286Smdodd int i, s, len, data_len, avail, dest, next; 57652286Smdodd unsigned char tmp16[2]; 57752286Smdodd struct mbuf * opkt; 57852286Smdodd struct mbuf * m; 57921769Sjkh 58052286Smdodd DODEBUG(Start_End, printf("ex_start%d: start\n", unit);); 58121769Sjkh 58252286Smdodd s = splimp(); 58321769Sjkh 58452286Smdodd /* 58552286Smdodd * Main loop: send outgoing packets to network card until there are no 58652286Smdodd * more packets left, or the card cannot accept any more yet. 58752286Smdodd */ 58852286Smdodd while (((opkt = ifp->if_snd.ifq_head) != NULL) && 58952286Smdodd !(ifp->if_flags & IFF_OACTIVE)) { 59021769Sjkh 59152286Smdodd /* 59252286Smdodd * Ensure there is enough free transmit buffer space for 59352286Smdodd * this packet, including its header. Note: the header 59452286Smdodd * cannot wrap around the end of the transmit buffer and 59552286Smdodd * must be kept together, so we allow space for twice the 59652286Smdodd * length of the header, just in case. 59752286Smdodd */ 59821769Sjkh 59952286Smdodd for (len = 0, m = opkt; m != NULL; m = m->m_next) { 60052286Smdodd len += m->m_len; 60152286Smdodd } 60252286Smdodd 60352286Smdodd data_len = len; 60452286Smdodd 60552286Smdodd DODEBUG(Sent_Pkts, printf("1. Sending packet with %d data bytes. ", data_len);); 60652286Smdodd 60752286Smdodd if (len & 1) { 60852286Smdodd len += XMT_HEADER_LEN + 1; 60952286Smdodd } else { 61052286Smdodd len += XMT_HEADER_LEN; 61152286Smdodd } 61252286Smdodd 61352286Smdodd if ((i = sc->tx_tail - sc->tx_head) >= 0) { 61452286Smdodd avail = sc->tx_mem_size - i; 61552286Smdodd } else { 61652286Smdodd avail = -i; 61752286Smdodd } 61852286Smdodd 61952286Smdodd DODEBUG(Sent_Pkts, printf("i=%d, avail=%d\n", i, avail);); 62052286Smdodd 62152286Smdodd if (avail >= len + XMT_HEADER_LEN) { 62252286Smdodd IF_DEQUEUE(&ifp->if_snd, opkt); 62352286Smdodd 62421769Sjkh#ifdef EX_PSA_INTR 62552286Smdodd /* 62652286Smdodd * Disable rx and tx interrupts, to avoid corruption 62752286Smdodd * of the host address register by interrupt service 62852286Smdodd * routines. 62952286Smdodd * XXX Is this necessary with splimp() enabled? 63052286Smdodd */ 63152286Smdodd outb(iobase + MASK_REG, All_Int); 63221769Sjkh#endif 63321769Sjkh 63452286Smdodd /* 63552286Smdodd * Compute the start and end addresses of this 63652286Smdodd * frame in the tx buffer. 63752286Smdodd */ 63852286Smdodd dest = sc->tx_tail; 63952286Smdodd next = dest + len; 64021769Sjkh 64152286Smdodd if (next > sc->tx_upper_limit) { 64252286Smdodd if ((sc->tx_upper_limit + 2 - sc->tx_tail) <= 64352286Smdodd XMT_HEADER_LEN) { 64452286Smdodd dest = sc->tx_lower_limit; 64552286Smdodd next = dest + len; 64655881Smdodd } else { 64755881Smdodd next = sc->tx_lower_limit + 64855881Smdodd next - sc->tx_upper_limit - 2; 64952286Smdodd } 65052286Smdodd } 65121769Sjkh 65252286Smdodd /* 65352286Smdodd * Build the packet frame in the card's ring buffer. 65452286Smdodd */ 65552286Smdodd DODEBUG(Sent_Pkts, printf("2. dest=%d, next=%d. ", dest, next);); 65621769Sjkh 65752286Smdodd outw(iobase + HOST_ADDR_REG, dest); 65852286Smdodd outw(iobase + IO_PORT_REG, Transmit_CMD); 65952286Smdodd outw(iobase + IO_PORT_REG, 0); 66052286Smdodd outw(iobase + IO_PORT_REG, next); 66152286Smdodd outw(iobase + IO_PORT_REG, data_len); 66221769Sjkh 66352286Smdodd /* 66452286Smdodd * Output the packet data to the card. Ensure all 66552286Smdodd * transfers are 16-bit wide, even if individual 66652286Smdodd * mbufs have odd length. 66752286Smdodd */ 66821769Sjkh 66952286Smdodd for (m = opkt, i = 0; m != NULL; m = m->m_next) { 67052286Smdodd DODEBUG(Sent_Pkts, printf("[%d]", m->m_len);); 67152286Smdodd if (i) { 67252286Smdodd tmp16[1] = *(mtod(m, caddr_t)); 67352286Smdodd outsw(iobase + IO_PORT_REG, tmp16, 1); 67452286Smdodd } 67552286Smdodd outsw(iobase + IO_PORT_REG, 67652286Smdodd mtod(m, caddr_t) + i, (m->m_len - i) / 2); 67752286Smdodd 67852286Smdodd if ((i = (m->m_len - i) & 1) != 0) { 67952286Smdodd tmp16[0] = *(mtod(m, caddr_t) + 68052286Smdodd m->m_len - 1); 68152286Smdodd } 68252286Smdodd } 68352286Smdodd if (i) { 68452286Smdodd outsw(iobase + IO_PORT_REG, tmp16, 1); 68555881Smdodd } 68652286Smdodd 68755881Smdodd /* 68855881Smdodd * If there were other frames chained, update the 68955881Smdodd * chain in the last one. 69055881Smdodd */ 69155881Smdodd if (sc->tx_head != sc->tx_tail) { 69255881Smdodd if (sc->tx_tail != dest) { 69352286Smdodd outw(iobase + HOST_ADDR_REG, 69455881Smdodd sc->tx_last + XMT_Chain_Point); 69555881Smdodd outw(iobase + IO_PORT_REG, dest); 69652286Smdodd } 69755881Smdodd outw(iobase + HOST_ADDR_REG, 69855881Smdodd sc->tx_last + XMT_Byte_Count); 69955881Smdodd i = inw(iobase + IO_PORT_REG); 70055881Smdodd outw(iobase + HOST_ADDR_REG, 70155881Smdodd sc->tx_last + XMT_Byte_Count); 70255881Smdodd outw(iobase + IO_PORT_REG, i | Ch_bit); 70355881Smdodd } 70455881Smdodd 70555881Smdodd /* 70655881Smdodd * Resume normal operation of the card: 70755881Smdodd * - Make a dummy read to flush the DRAM write 70855881Smdodd * pipeline. 70955881Smdodd * - Enable receive and transmit interrupts. 71055881Smdodd * - Send Transmit or Resume_XMT command, as 71155881Smdodd * appropriate. 71255881Smdodd */ 71355881Smdodd inw(iobase + IO_PORT_REG); 71421769Sjkh#ifdef EX_PSA_INTR 71555881Smdodd outb(iobase + MASK_REG, All_Int & ~(Rx_Int | Tx_Int)); 71621769Sjkh#endif 71755881Smdodd if (sc->tx_head == sc->tx_tail) { 71855881Smdodd outw(iobase + XMT_BAR, dest); 71955881Smdodd outb(iobase + CMD_REG, Transmit_CMD); 72055881Smdodd sc->tx_head = dest; 72155881Smdodd DODEBUG(Sent_Pkts, printf("Transmit\n");); 72252286Smdodd } else { 72355881Smdodd outb(iobase + CMD_REG, Resume_XMT_List_CMD); 72455881Smdodd DODEBUG(Sent_Pkts, printf("Resume\n");); 72552286Smdodd } 72655881Smdodd 72755881Smdodd sc->tx_last = dest; 72855881Smdodd sc->tx_tail = next; 72955881Smdodd 73055881Smdodd if (ifp->if_bpf != NULL) { 73155881Smdodd bpf_mtap(ifp, opkt); 73255881Smdodd } 73355881Smdodd 73455881Smdodd ifp->if_timer = 2; 73555881Smdodd ifp->if_opackets++; 73655881Smdodd m_freem(opkt); 73755881Smdodd } else { 73855881Smdodd ifp->if_flags |= IFF_OACTIVE; 73955881Smdodd DODEBUG(Status, printf("OACTIVE start\n");); 74052286Smdodd } 74121769Sjkh } 74221769Sjkh 74352286Smdodd splx(s); 74421769Sjkh 74552286Smdodd DODEBUG(Start_End, printf("ex_start%d: finish\n", unit);); 74621769Sjkh} 74721769Sjkh 74852286Smdoddstatic void 74952286Smdoddex_stop(struct ex_softc *sc) 75021769Sjkh{ 75152286Smdodd int iobase = sc->iobase; 75221769Sjkh 75352286Smdodd DODEBUG(Start_End, printf("ex_stop%d: start\n", unit);); 75421769Sjkh 75552286Smdodd /* 75652286Smdodd * Disable card operation: 75752286Smdodd * - Disable the interrupt line. 75852286Smdodd * - Flush transmission and disable reception. 75952286Smdodd * - Mask and clear all interrupts. 76052286Smdodd * - Reset the 82595. 76152286Smdodd */ 76252286Smdodd outb(iobase + CMD_REG, Bank1_Sel); 76352286Smdodd outb(iobase + REG1, inb(iobase + REG1) & ~TriST_INT); 76452286Smdodd outb(iobase + CMD_REG, Bank0_Sel); 76552286Smdodd outb(iobase + CMD_REG, Rcv_Stop); 76652286Smdodd sc->tx_head = sc->tx_tail = sc->tx_lower_limit; 76752286Smdodd sc->tx_last = 0; /* XXX I think these two lines are not necessary, because ex_init will always be called again to reinit the interface. */ 76852286Smdodd outb(iobase + MASK_REG, All_Int); 76952286Smdodd outb(iobase + STATUS_REG, All_Int); 77052286Smdodd outb(iobase + CMD_REG, Reset_CMD); 77152286Smdodd DELAY(200); 77221769Sjkh 77352286Smdodd DODEBUG(Start_End, printf("ex_stop%d: finish\n", unit);); 77452286Smdodd 77552286Smdodd return; 77621769Sjkh} 77721769Sjkh 77821769Sjkh 77952286Smdoddstatic void 78055883Smdoddex_intr(void *arg) 78121769Sjkh{ 78252286Smdodd struct ex_softc * sc = (struct ex_softc *)arg; 78352286Smdodd struct ifnet * ifp = &sc->arpcom.ac_if; 78452286Smdodd int iobase = sc->iobase; 78552286Smdodd int int_status, send_pkts; 78621769Sjkh 78755883Smdodd DODEBUG(Start_End, printf("ex_intr%d: start\n", unit);); 78821769Sjkh 78921769Sjkh#ifdef EXDEBUG 79021769Sjkh if (++exintr_count != 1) 79121769Sjkh printf("WARNING: nested interrupt (%d). Mail the author.\n", exintr_count); 79221769Sjkh#endif 79321769Sjkh 79452286Smdodd send_pkts = 0; 79552286Smdodd while ((int_status = inb(iobase + STATUS_REG)) & (Tx_Int | Rx_Int)) { 79652286Smdodd if (int_status & Rx_Int) { 79752286Smdodd outb(iobase + STATUS_REG, Rx_Int); 79821769Sjkh 79952286Smdodd ex_rx_intr(sc); 80052286Smdodd } else if (int_status & Tx_Int) { 80152286Smdodd outb(iobase + STATUS_REG, Tx_Int); 80221769Sjkh 80352286Smdodd ex_tx_intr(sc); 80452286Smdodd send_pkts = 1; 80552286Smdodd } 80652286Smdodd } 80721769Sjkh 80852286Smdodd /* 80952286Smdodd * If any packet has been transmitted, and there are queued packets to 81052286Smdodd * be sent, attempt to send more packets to the network card. 81152286Smdodd */ 81252286Smdodd 81352286Smdodd if (send_pkts && (ifp->if_snd.ifq_head != NULL)) { 81452286Smdodd ex_start(ifp); 81552286Smdodd } 81652286Smdodd 81721769Sjkh#ifdef EXDEBUG 81821769Sjkh exintr_count--; 81921769Sjkh#endif 82021769Sjkh 82155883Smdodd DODEBUG(Start_End, printf("ex_intr%d: finish\n", unit);); 82252286Smdodd 82352286Smdodd return; 82421769Sjkh} 82521769Sjkh 82652286Smdoddstatic void 82752286Smdoddex_tx_intr(struct ex_softc *sc) 82821769Sjkh{ 82952286Smdodd struct ifnet * ifp = &sc->arpcom.ac_if; 83052286Smdodd int iobase = sc->iobase; 83152286Smdodd int tx_status; 83221769Sjkh 83352286Smdodd DODEBUG(Start_End, printf("ex_tx_intr%d: start\n", unit);); 83421769Sjkh 83552286Smdodd /* 83652286Smdodd * - Cancel the watchdog. 83752286Smdodd * For all packets transmitted since last transmit interrupt: 83852286Smdodd * - Advance chain pointer to next queued packet. 83952286Smdodd * - Update statistics. 84052286Smdodd */ 84121769Sjkh 84252286Smdodd ifp->if_timer = 0; 84321769Sjkh 84452286Smdodd while (sc->tx_head != sc->tx_tail) { 84552286Smdodd outw(iobase + HOST_ADDR_REG, sc->tx_head); 84621769Sjkh 84752286Smdodd if (! inw(iobase + IO_PORT_REG) & Done_bit) 84852286Smdodd break; 84921769Sjkh 85052286Smdodd tx_status = inw(iobase + IO_PORT_REG); 85152286Smdodd sc->tx_head = inw(iobase + IO_PORT_REG); 85252286Smdodd 85352286Smdodd if (tx_status & TX_OK_bit) { 85452286Smdodd ifp->if_opackets++; 85552286Smdodd } else { 85652286Smdodd ifp->if_oerrors++; 85752286Smdodd } 85852286Smdodd 85952286Smdodd ifp->if_collisions += tx_status & No_Collisions_bits; 86052286Smdodd } 86152286Smdodd 86252286Smdodd /* 86352286Smdodd * The card should be ready to accept more packets now. 86452286Smdodd */ 86552286Smdodd 86652286Smdodd ifp->if_flags &= ~IFF_OACTIVE; 86752286Smdodd 86852286Smdodd DODEBUG(Status, printf("OIDLE tx_intr\n");); 86952286Smdodd DODEBUG(Start_End, printf("ex_tx_intr%d: finish\n", unit);); 87052286Smdodd 87152286Smdodd return; 87221769Sjkh} 87321769Sjkh 87452286Smdoddstatic void 87552286Smdoddex_rx_intr(struct ex_softc *sc) 87621769Sjkh{ 87752286Smdodd struct ifnet * ifp = &sc->arpcom.ac_if; 87852286Smdodd int iobase = sc->iobase; 87952286Smdodd int rx_status; 88052286Smdodd int pkt_len; 88152286Smdodd int QQQ; 88252286Smdodd struct mbuf * m; 88352286Smdodd struct mbuf * ipkt; 88452286Smdodd struct ether_header * eh; 88521769Sjkh 88652286Smdodd DODEBUG(Start_End, printf("ex_rx_intr%d: start\n", unit);); 88721769Sjkh 88852286Smdodd /* 88952286Smdodd * For all packets received since last receive interrupt: 89052286Smdodd * - If packet ok, read it into a new mbuf and queue it to interface, 89152286Smdodd * updating statistics. 89252286Smdodd * - If packet bad, just discard it, and update statistics. 89352286Smdodd * Finally, advance receive stop limit in card's memory to new location. 89452286Smdodd */ 89521769Sjkh 89652286Smdodd outw(iobase + HOST_ADDR_REG, sc->rx_head); 89721769Sjkh 89852286Smdodd while (inw(iobase + IO_PORT_REG) == RCV_Done) { 89952286Smdodd 90052286Smdodd rx_status = inw(iobase + IO_PORT_REG); 90152286Smdodd sc->rx_head = inw(iobase + IO_PORT_REG); 90252286Smdodd QQQ = pkt_len = inw(iobase + IO_PORT_REG); 90352286Smdodd 90452286Smdodd if (rx_status & RCV_OK_bit) { 90552286Smdodd MGETHDR(m, M_DONTWAIT, MT_DATA); 90652286Smdodd ipkt = m; 90752286Smdodd if (ipkt == NULL) { 90852286Smdodd ifp->if_iqdrops++; 90952286Smdodd } else { 91052286Smdodd ipkt->m_pkthdr.rcvif = ifp; 91152286Smdodd ipkt->m_pkthdr.len = pkt_len; 91252286Smdodd ipkt->m_len = MHLEN; 91352286Smdodd 91452286Smdodd while (pkt_len > 0) { 91552286Smdodd if (pkt_len > MINCLSIZE) { 91652286Smdodd MCLGET(m, M_DONTWAIT); 91752286Smdodd if (m->m_flags & M_EXT) { 91852286Smdodd m->m_len = MCLBYTES; 91952286Smdodd } else { 92052286Smdodd m_freem(ipkt); 92152286Smdodd ifp->if_iqdrops++; 92252286Smdodd goto rx_another; 92352286Smdodd } 92452286Smdodd } 92552286Smdodd m->m_len = min(m->m_len, pkt_len); 92652286Smdodd 92721769Sjkh /* 92821769Sjkh * NOTE: I'm assuming that all mbufs allocated are of even length, 92921769Sjkh * except for the last one in an odd-length packet. 93021769Sjkh */ 93152286Smdodd 93252286Smdodd insw(iobase + IO_PORT_REG, 93352286Smdodd mtod(m, caddr_t), m->m_len / 2); 93452286Smdodd 93552286Smdodd if (m->m_len & 1) { 93652286Smdodd *(mtod(m, caddr_t) + m->m_len - 1) = inb(iobase + IO_PORT_REG); 93752286Smdodd } 93852286Smdodd pkt_len -= m->m_len; 93952286Smdodd 94052286Smdodd if (pkt_len > 0) { 94152286Smdodd MGET(m->m_next, M_DONTWAIT, MT_DATA); 94252286Smdodd if (m->m_next == NULL) { 94352286Smdodd m_freem(ipkt); 94452286Smdodd ifp->if_iqdrops++; 94552286Smdodd goto rx_another; 94652286Smdodd } 94752286Smdodd m = m->m_next; 94852286Smdodd m->m_len = MLEN; 94952286Smdodd } 95052286Smdodd } 95152286Smdodd eh = mtod(ipkt, struct ether_header *); 95252286Smdodd#ifdef EXDEBUG 95352286Smdodd if (debug_mask & Rcvd_Pkts) { 95452286Smdodd if ((eh->ether_dhost[5] != 0xff) || (eh->ether_dhost[0] != 0xff)) { 95552286Smdodd printf("Receive packet with %d data bytes: %6D -> ", QQQ, eh->ether_shost, ":"); 95652286Smdodd printf("%6D\n", eh->ether_dhost, ":"); 95752286Smdodd } /* QQQ */ 95821769Sjkh } 95921769Sjkh#endif 96052286Smdodd if (ifp->if_bpf != NULL) { 96152286Smdodd bpf_mtap(ifp, ipkt); 96221769Sjkh 96321769Sjkh /* 96452286Smdodd * Note that the interface cannot be in promiscuous mode 96552286Smdodd * if there are no BPF listeners. And if we are in 96652286Smdodd * promiscuous mode, we have to check if this packet is 96752286Smdodd * really ours. 96821769Sjkh */ 96952286Smdodd if ((ifp->if_flags & IFF_PROMISC) && 97052286Smdodd (eh->ether_dhost[0] & 1) == 0 && 97152286Smdodd bcmp(eh->ether_dhost, sc->arpcom.ac_enaddr, sizeof(eh->ether_dhost)) != 0 && 97252286Smdodd bcmp(eh->ether_dhost, etherbroadcastaddr, sizeof(eh->ether_dhost)) != 0) { 97352286Smdodd m_freem(ipkt); 97452286Smdodd goto rx_another; 97552286Smdodd } 97652286Smdodd } 97752286Smdodd m_adj(ipkt, sizeof(struct ether_header)); 97852286Smdodd ether_input(ifp, eh, ipkt); 97952286Smdodd ifp->if_ipackets++; 98052286Smdodd } 98152286Smdodd } else { 98252286Smdodd ifp->if_ierrors++; 98321769Sjkh } 98452286Smdodd outw(iobase + HOST_ADDR_REG, sc->rx_head); 98552286Smdoddrx_another: ; 98621769Sjkh } 98721769Sjkh 98852286Smdodd if (sc->rx_head < sc->rx_lower_limit + 2) 98952286Smdodd outw(iobase + RCV_STOP_REG, sc->rx_upper_limit); 99052286Smdodd else 99152286Smdodd outw(iobase + RCV_STOP_REG, sc->rx_head - 2); 99252286Smdodd 99352286Smdodd DODEBUG(Start_End, printf("ex_rx_intr%d: finish\n", unit);); 99452286Smdodd 99552286Smdodd return; 99621769Sjkh} 99721769Sjkh 99821769Sjkh 99955883Smdoddstatic int 100055883Smdoddex_ioctl(register struct ifnet *ifp, u_long cmd, caddr_t data) 100121769Sjkh{ 100252286Smdodd struct ex_softc * sc = ifp->if_softc; 100352286Smdodd int s; 100452286Smdodd int error = 0; 100521769Sjkh 100652286Smdodd DODEBUG(Start_End, printf("ex_ioctl%d: start ", ifp->if_unit);); 100721769Sjkh 100852286Smdodd s = splimp(); 100921769Sjkh 101052286Smdodd switch(cmd) { 101152286Smdodd case SIOCSIFADDR: 101252286Smdodd case SIOCGIFADDR: 101352286Smdodd case SIOCSIFMTU: 101452286Smdodd error = ether_ioctl(ifp, cmd, data); 101552286Smdodd break; 101621769Sjkh 101752286Smdodd case SIOCSIFFLAGS: 101852286Smdodd DODEBUG(Start_End, printf("SIOCSIFFLAGS");); 101952286Smdodd if ((ifp->if_flags & IFF_UP) == 0 && 102052286Smdodd (ifp->if_flags & IFF_RUNNING)) { 102152286Smdodd 102252286Smdodd ifp->if_flags &= ~IFF_RUNNING; 102352286Smdodd ex_stop(sc); 102452286Smdodd } else { 102552286Smdodd ex_init(sc); 102652286Smdodd } 102752286Smdodd break; 102821769Sjkh#ifdef NODEF 102952286Smdodd case SIOCGHWADDR: 103052286Smdodd DODEBUG(Start_End, printf("SIOCGHWADDR");); 103152286Smdodd bcopy((caddr_t)sc->sc_addr, (caddr_t)&ifr->ifr_data, 103252286Smdodd sizeof(sc->sc_addr)); 103352286Smdodd break; 103421769Sjkh#endif 103552286Smdodd case SIOCADDMULTI: 103652286Smdodd DODEBUG(Start_End, printf("SIOCADDMULTI");); 103752286Smdodd case SIOCDELMULTI: 103852286Smdodd DODEBUG(Start_End, printf("SIOCDELMULTI");); 103952286Smdodd /* XXX Support not done yet. */ 104052286Smdodd error = EINVAL; 104152286Smdodd break; 104252286Smdodd default: 104352286Smdodd DODEBUG(Start_End, printf("unknown");); 104452286Smdodd error = EINVAL; 104552286Smdodd } 104621769Sjkh 104752286Smdodd splx(s); 104821769Sjkh 104952286Smdodd DODEBUG(Start_End, printf("\nex_ioctl%d: finish\n", ifp->if_unit);); 105052286Smdodd 105152286Smdodd return(error); 105221769Sjkh} 105321769Sjkh 105421769Sjkh 105552286Smdoddstatic void 105652286Smdoddex_reset(struct ex_softc *sc) 105721769Sjkh{ 105852286Smdodd int s; 105921769Sjkh 106052286Smdodd DODEBUG(Start_End, printf("ex_reset%d: start\n", unit);); 106121769Sjkh 106252286Smdodd s = splimp(); 106321769Sjkh 106452286Smdodd ex_stop(sc); 106552286Smdodd ex_init(sc); 106621769Sjkh 106752286Smdodd splx(s); 106821769Sjkh 106952286Smdodd DODEBUG(Start_End, printf("ex_reset%d: finish\n", unit);); 107052286Smdodd 107152286Smdodd return; 107221769Sjkh} 107321769Sjkh 107421769Sjkh 107552286Smdoddstatic void 107652286Smdoddex_watchdog(struct ifnet *ifp) 107721769Sjkh{ 107852286Smdodd struct ex_softc * sc = ifp->if_softc; 107921769Sjkh 108052286Smdodd DODEBUG(Start_End, printf("ex_watchdog%d: start\n", ifp->if_unit);); 108121769Sjkh 108252286Smdodd ifp->if_flags &= ~IFF_OACTIVE; 108321769Sjkh 108452286Smdodd DODEBUG(Status, printf("OIDLE watchdog\n");); 108552286Smdodd 108652286Smdodd ifp->if_oerrors++; 108752286Smdodd ex_reset(sc); 108852286Smdodd ex_start(ifp); 108952286Smdodd 109052286Smdodd DODEBUG(Start_End, printf("ex_watchdog%d: finish\n", ifp->if_unit);); 109152286Smdodd 109252286Smdodd return; 109321769Sjkh} 109421769Sjkh 109521769Sjkh 109652286Smdoddstatic u_short 109752286Smdoddeeprom_read(int iobase, int location) 109821769Sjkh{ 109921769Sjkh int i; 110021769Sjkh u_short data = 0; 110121769Sjkh int ee_addr; 110221769Sjkh int read_cmd = location | EE_READ_CMD; 110321769Sjkh short ctrl_val = EECS; 110421769Sjkh 110521769Sjkh ee_addr = iobase + EEPROM_REG; 110621769Sjkh outb(iobase + CMD_REG, Bank2_Sel); 110721769Sjkh outb(ee_addr, EECS); 110821769Sjkh for (i = 8; i >= 0; i--) { 110921769Sjkh short outval = (read_cmd & (1 << i)) ? ctrl_val | EEDI : ctrl_val; 111021769Sjkh outb(ee_addr, outval); 111121769Sjkh outb(ee_addr, outval | EESK); 111221769Sjkh DELAY(3); 111321769Sjkh outb(ee_addr, outval); 111421769Sjkh DELAY(2); 111521769Sjkh } 111621769Sjkh outb(ee_addr, ctrl_val); 111721769Sjkh 111821769Sjkh for (i = 16; i > 0; i--) { 111921769Sjkh outb(ee_addr, ctrl_val | EESK); 112021769Sjkh DELAY(3); 112121769Sjkh data = (data << 1) | ((inb(ee_addr) & EEDO) ? 1 : 0); 112221769Sjkh outb(ee_addr, ctrl_val); 112321769Sjkh DELAY(2); 112421769Sjkh } 112521769Sjkh 112621769Sjkh ctrl_val &= ~EECS; 112721769Sjkh outb(ee_addr, ctrl_val | EESK); 112821769Sjkh DELAY(3); 112921769Sjkh outb(ee_addr, ctrl_val); 113021769Sjkh DELAY(2); 113121769Sjkh outb(iobase + CMD_REG, Bank0_Sel); 113221769Sjkh return(data); 113321769Sjkh} 1134