diff options
| author | kato <kato@FreeBSD.org> | 1998-12-17 08:45:07 +0000 |
|---|---|---|
| committer | kato <kato@FreeBSD.org> | 1998-12-17 08:45:07 +0000 |
| commit | 61c8bab0e1c50de15ec3d1168510388be75681ba (patch) | |
| tree | 31fe610c344b51b38b4b44bc16c7c62db8036337 | |
| parent | 259f4291d05d68972f4f56e82273051fa39e2611 (diff) | |
| download | FreeBSD-src-61c8bab0e1c50de15ec3d1168510388be75681ba.zip FreeBSD-src-61c8bab0e1c50de15ec3d1168510388be75681ba.tar.gz | |
The fe driver has been merged into sys/i386/isa/if_fe.c.
Forgotten by: kato
| -rw-r--r-- | sys/pc98/pc98/if_fe.c | 3826 |
1 files changed, 0 insertions, 3826 deletions
diff --git a/sys/pc98/pc98/if_fe.c b/sys/pc98/pc98/if_fe.c deleted file mode 100644 index 8369d21..0000000 --- a/sys/pc98/pc98/if_fe.c +++ /dev/null @@ -1,3826 +0,0 @@ -/* - * All Rights Reserved, Copyright (C) Fujitsu Limited 1995 - * - * This software may be used, modified, copied, distributed, and sold, in - * both source and binary form provided that the above copyright, these - * terms and the following disclaimer are retained. The name of the author - * and/or the contributor may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND THE CONTRIBUTOR ``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 THE AUTHOR OR THE CONTRIBUTOR 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. - */ - -/* - * $Id: if_fe.c,v 1.35 1998/10/22 05:58:45 bde Exp $ - * - * Device driver for Fujitsu MB86960A/MB86965A based Ethernet cards. - * To be used with FreeBSD 2.x - * Contributed by M. Sekiguchi. <seki@sysrap.cs.fujitsu.co.jp> - * - * This version is intended to be a generic template for various - * MB86960A/MB86965A based Ethernet cards. It currently supports - * Fujitsu FMV-180 series for ISA and Allied-Telesis AT1700/RE2000 - * series for ISA, as well as Fujitsu MBH10302 PC card. - * There are some currently- - * unused hooks embedded, which are primarily intended to support - * other types of Ethernet cards, but the author is not sure whether - * they are useful. - * - * This version also includes some alignments for - * RE1000/RE1000+/ME1500 support. It is incomplete, however, since the - * cards are not for AT-compatibles. (They are for PC98 bus -- a - * proprietary bus architecture available only in Japan.) Further - * work for PC98 version will be available as a part of FreeBSD(98) - * project. - * - * This software is a derivative work of if_ed.c version 1.56 by David - * Greenman available as a part of FreeBSD 2.0 RELEASE source distribution. - * - * The following lines are retained from the original if_ed.c: - * - * Copyright (C) 1993, David Greenman. This software may be used, modified, - * copied, distributed, and sold, in both source and binary form provided - * that the above copyright and these terms are retained. Under no - * circumstances is the author responsible for the proper functioning - * of this software, nor does the author assume any responsibility - * for damages incurred with its use. - */ - -/* - * Modified for Allied-Telesis RE1000 series. - */ - - -/* - * TODO: - * o To support MBH10304 PC card. It is another MB8696x based - * PCMCIA Ethernet card by Fujitsu, which is not compatible with - * MBH10302. - * o To merge FreeBSD(98) efforts into a single source file. - * o To support ISA PnP auto configuration for FMV-183/184. - * o To reconsider mbuf usage. - * o To reconsider transmission buffer usage, including - * transmission buffer size (currently 4KB x 2) and pros-and- - * cons of multiple frame transmission. - * o To test IPX codes. - */ - -#include "fe.h" -#include "bpfilter.h" -#include "opt_inet.h" -#include "opt_ipx.h" - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/sockio.h> -#include <sys/mbuf.h> -#include <sys/socket.h> -#include <sys/syslog.h> - -#include <net/if.h> -#include <net/if_dl.h> - -#ifdef INET -#include <netinet/in.h> -#include <netinet/if_ether.h> -#endif - -/* IPX code is not tested. FIXME. */ -#ifdef IPX -#include <netipx/ipx.h> -#include <netipx/ipx_if.h> -#endif - -/* To be used with IPv6 package of INRIA. */ -#ifdef INET6 -/* IPv6 added by shin 96.2.6 */ -#include <netinet/if_ether6.h> -#endif - -/* XNS code is not tested. FIXME. */ -#ifdef NS -#include <netns/ns.h> -#include <netns/ns_if.h> -#endif - -#if NBPFILTER > 0 -#include <net/bpf.h> -#endif - -#include <machine/clock.h> - -#include <i386/isa/isa_device.h> -#include <i386/isa/icu.h> - -/* PCCARD suport */ -#include "card.h" -#if NCARD > 0 -#include <sys/kernel.h> -#include <sys/select.h> -#include <pccard/cardinfo.h> -#include <pccard/slot.h> -#endif - -#include <i386/isa/ic/mb86960.h> -#include <i386/isa/if_fereg.h> - -/* - * This version of fe is an ISA device driver. - * Override the following macro to adapt it to another bus. - * (E.g., PC98.) - */ -#define DEVICE struct isa_device - -/* - * Default settings for fe driver specific options. - * They can be set in config file by "options" statements. - */ - -/* - * Debug control. - * 0: No debug at all. All debug specific codes are stripped off. - * 1: Silent. No debug messages are logged except emergent ones. - * 2: Brief. Lair events and/or important information are logged. - * 3: Detailed. Logs all information which *may* be useful for debugging. - * 4: Trace. All actions in the driver is logged. Super verbose. - */ -#ifndef FE_DEBUG -#define FE_DEBUG 1 -#endif - -/* - * Transmit just one packet per a "send" command to 86960. - * This option is intended for performance test. An EXPERIMENTAL option. - */ -#ifndef FE_SINGLE_TRANSMISSION -#define FE_SINGLE_TRANSMISSION 0 -#endif - -/* - * Device configuration flags. - */ - -/* DLCR6 settings. */ -#define FE_FLAGS_DLCR6_VALUE 0x007F - -/* Force DLCR6 override. */ -#define FE_FLAGS_OVERRIDE_DLCR6 0x0080 - -/* Shouldn't these be defined somewhere else such as isa_device.h? */ -#define NO_IOADDR (-1) -#define NO_IRQ 0 - -/* - * Data type for a multicast address filter on 8696x. - */ -struct fe_filter { u_char data [ FE_FILTER_LEN ]; }; - -/* - * Special filter values. - */ -static struct fe_filter const fe_filter_nothing = { FE_FILTER_NOTHING }; -static struct fe_filter const fe_filter_all = { FE_FILTER_ALL }; - -/* How many registers does an fe-supported adapter have at maximum? */ -#define MAXREGISTERS 32 - -/* - * fe_softc: per line info and status - */ -static struct fe_softc { - - /* Used by "common" codes. */ - struct arpcom arpcom; /* Ethernet common */ - - /* Used by config codes. */ - - /* Set by probe() and not modified in later phases. */ - char * typestr; /* printable name of the interface. */ - u_short iobase; /* base I/O address of the adapter. */ - u_short ioaddr [ MAXREGISTERS ]; /* I/O addresses of register. */ - u_short txb_size; /* size of TX buffer, in bytes */ - u_char proto_dlcr4; /* DLCR4 prototype. */ - u_char proto_dlcr5; /* DLCR5 prototype. */ - u_char proto_dlcr6; /* DLCR6 prototype. */ - u_char proto_dlcr7; /* DLCR7 prototype. */ - u_char proto_bmpr13; /* BMPR13 prototype. */ - u_char proto_bmpr14; /* BMPR14 prototype. */ - - /* Vendor specific hooks. */ - void ( * init )( struct fe_softc * ); /* Just before fe_init(). */ - void ( * stop )( struct fe_softc * ); /* Just after fe_stop(). */ - - /* Transmission buffer management. */ - u_short txb_free; /* free bytes in TX buffer */ - u_char txb_count; /* number of packets in TX buffer */ - u_char txb_sched; /* number of scheduled packets */ - - /* Excessive collision counter (see fe_tint() for details. */ - u_char tx_excolls; /* # of excessive collisions. */ - - /* Multicast address filter management. */ - u_char filter_change; /* MARs must be changed ASAP. */ - struct fe_filter filter;/* new filter value. */ - -} fe_softc[NFE]; - -#define sc_if arpcom.ac_if -#define sc_unit arpcom.ac_if.if_unit -#define sc_enaddr arpcom.ac_enaddr - -/* Standard driver entry points. These can be static. */ -static int fe_probe ( struct isa_device * ); -static int fe_attach ( struct isa_device * ); -static void fe_init ( int ); -static ointhand2_t feintr; -static int fe_ioctl ( struct ifnet *, u_long, caddr_t ); -static void fe_start ( struct ifnet * ); -static void fe_reset ( int ); -static void fe_watchdog ( struct ifnet * ); - -/* Local functions. Order of declaration is confused. FIXME. */ -#ifdef PC98 -static int fe_probe_re1000 ( DEVICE *, struct fe_softc * ); -static int fe_probe_re1000p( DEVICE *, struct fe_softc * ); -static int fe_probe_cnet9ne ( DEVICE *, struct fe_softc * ); -static int fe_probe_cnet98p2( DEVICE *, struct fe_softc * ); -#else -static int fe_probe_fmv ( DEVICE *, struct fe_softc * ); -static int fe_probe_ati ( DEVICE *, struct fe_softc * ); -static void fe_init_ati ( struct fe_softc * ); -#endif /* PC98 */ -static int fe_probe_gwy ( DEVICE *, struct fe_softc * ); -#if NCARD > 0 -static int fe_probe_mbh ( DEVICE *, struct fe_softc * ); -static void fe_init_mbh ( struct fe_softc * ); -static int fe_probe_tdk ( DEVICE *, struct fe_softc * ); -#endif -static int fe_get_packet ( struct fe_softc *, u_short ); -static void fe_stop ( int ); -static void fe_tint ( struct fe_softc *, u_char ); -static void fe_rint ( struct fe_softc *, u_char ); -static void fe_xmit ( struct fe_softc * ); -static void fe_emptybuffer ( struct fe_softc * ); -static void fe_write_mbufs ( struct fe_softc *, struct mbuf * ); -static struct fe_filter - fe_mcaf ( struct fe_softc * ); -static int fe_hash ( u_char * ); -static void fe_setmode ( struct fe_softc * ); -static void fe_loadmar ( struct fe_softc * ); -#if FE_DEBUG >= 1 -static void fe_dump ( int, struct fe_softc *, char * ); -#endif - -/* Driver struct used in the config code. This must be public (external.) */ -struct isa_driver fedriver = -{ - fe_probe, - fe_attach, - "fe", - 1 /* It's safe to mark as "sensitive" */ -}; - -/* - * Fe driver specific constants which relate to 86960/86965. - */ - -/* Interrupt masks */ -#define FE_TMASK ( FE_D2_COLL16 | FE_D2_TXDONE ) -#define FE_RMASK ( FE_D3_OVRFLO | FE_D3_CRCERR \ - | FE_D3_ALGERR | FE_D3_SRTPKT | FE_D3_PKTRDY ) - -/* Maximum number of iterations for a receive interrupt. */ -#define FE_MAX_RECV_COUNT ( ( 65536 - 2048 * 2 ) / 64 ) - /* - * Maximum size of SRAM is 65536, - * minimum size of transmission buffer in fe is 2x2KB, - * and minimum amount of received packet including headers - * added by the chip is 64 bytes. - * Hence FE_MAX_RECV_COUNT is the upper limit for number - * of packets in the receive buffer. - */ - -/* - * Routines to access contiguous I/O ports. - */ - -static void -inblk ( struct fe_softc * sc, int offs, u_char * mem, int len ) -{ - while ( --len >= 0 ) { - *mem++ = inb( sc->ioaddr[ offs++ ] ); - } -} - -static void -outblk ( struct fe_softc * sc, int offs, u_char const * mem, int len ) -{ - while ( --len >= 0 ) { - outb( sc->ioaddr[ offs++ ], *mem++ ); - } -} - -/* PCCARD Support */ -#if NCARD > 0 -/* - * PC-Card (PCMCIA) specific code. - */ -static int feinit ( struct pccard_devinfo * ); -static void feunload ( struct pccard_devinfo * ); -static int fe_card_intr ( struct pccard_devinfo * ); - -static struct pccard_device fe_info = { - "fe", - feinit, - feunload, - fe_card_intr, - 0, /* Attributes - presently unused */ - &net_imask /* XXX - Should this also include tty_imask? */ -}; - -DATA_SET(pccarddrv_set, fe_info); - -/* - * Initialize the device - called from Slot manager. - */ -static int -feinit(struct pccard_devinfo *devi) -{ - struct fe_softc *sc; - - /* validate unit number. */ - if (devi->isahd.id_unit >= NFE) - return (ENODEV); - /* - * Probe the device. If a value is returned, - * the device was found at the location. - */ -#if FE_DEBUG >= 2 - printf("Start Probe\n"); -#endif - /* Initialize "minimum" parts of our softc. */ - sc = &fe_softc[devi->isahd.id_unit]; - sc->sc_unit = devi->isahd.id_unit; - sc->iobase = devi->isahd.id_iobase; - - /* Use Ethernet address got from CIS, if one is available. */ - if ((devi->misc[0] & 0x03) == 0x00 - && (devi->misc[0] | devi->misc[1] | devi->misc[2]) != 0) { - /* Yes, it looks like a valid Ether address. */ - bcopy(devi->misc, sc->sc_enaddr, ETHER_ADDR_LEN); - } else { - /* Indicate we have no Ether address in CIS. */ - bzero(sc->sc_enaddr, ETHER_ADDR_LEN); - } - - /* Probe supported PC card models. */ - if (fe_probe_tdk(&devi->isahd, sc) == 0 && - fe_probe_mbh(&devi->isahd, sc) == 0) - return (ENXIO); -#if FE_DEBUG >= 2 - printf("Start attach\n"); -#endif - if (fe_attach(&devi->isahd) == 0) - return (ENXIO); - - return (0); -} - -/* - * feunload - unload the driver and clear the table. - * XXX TODO: - * This is usually called when the card is ejected, but - * can be caused by a modunload of a controller driver. - * The idea is to reset the driver's view of the device - * and ensure that any driver entry points such as - * read and write do not hang. - */ -static void -feunload(struct pccard_devinfo *devi) -{ - printf("fe%d: unload\n", devi->isahd.id_unit); - fe_stop(devi->isahd.id_unit); -} - -/* - * fe_card_intr - Shared interrupt called from - * front end of PC-Card handler. - */ -static int -fe_card_intr(struct pccard_devinfo *devi) -{ - feintr(devi->isahd.id_unit); - return (1); -} -#endif /* NCARD > 0 */ - - -/* - * Hardware probe routines. - */ - -/* How and where to probe; to support automatic I/O address detection. */ -struct fe_probe_list -{ - int ( * probe ) ( DEVICE *, struct fe_softc * ); - u_short const * addresses; -}; - -/* Lists of possible addresses. */ -#ifdef PC98 -static u_short const fe_re1000_addr [] = - { 0x0D0, 0x0D2, 0x0D4, 0x0D6, 0x0D8, 0x0DA, 0x0DC, 0x0DE, - 0x1D0, 0x1D2, 0x1D4, 0x1D6, 0x1D8, 0x1DA, 0x1DC, 0x1DE, 0 }; -static u_short const fe_re1000p_addr [] = - { 0x0D0, 0x0D2, 0x0D4, 0x0D8, 0x1D4, 0x1D6, 0x1D8, 0x1DA, 0 }; -static u_short const fe_cnet9ne_addr [] = - { 0x73D0, 0 }; -static u_short const fe_cnet98p2_addr [] = - { 0x03D0, 0x13D0, 0x23D0, 0x33D0, 0x43D0, 0x53D0, 0x63D0, - 0x73D0, 0x83D0, 0x93D0, 0xA3D0, 0xB3D0, 0xC3D0, 0xD3D0, 0 }; -#else -static u_short const fe_fmv_addr [] = - { 0x220, 0x240, 0x260, 0x280, 0x2A0, 0x2C0, 0x300, 0x340, 0 }; -static u_short const fe_ati_addr [] = - { 0x240, 0x260, 0x280, 0x2A0, 0x300, 0x320, 0x340, 0x380, 0 }; -#endif - -static struct fe_probe_list const fe_probe_list [] = -{ -#ifdef PC98 - { fe_probe_re1000, fe_re1000_addr }, - { fe_probe_re1000p, fe_re1000p_addr }, - /* XXX: We must probe C-NET(98)P2 after C-NET(9N)E. */ - { fe_probe_cnet9ne, fe_cnet9ne_addr }, - { fe_probe_cnet98p2, fe_cnet98p2_addr }, -#else - { fe_probe_fmv, fe_fmv_addr }, - { fe_probe_ati, fe_ati_addr }, -#endif - { fe_probe_gwy, NULL }, /* GWYs cannot be auto detected. */ - { NULL, NULL } -}; - - -/* - * Determine if the device is present - * - * on entry: - * a pointer to an isa_device struct - * on exit: - * zero if device not found - * or number of i/o addresses used (if found) - */ - -static int -fe_probe ( DEVICE * dev ) -{ - struct fe_softc * sc; - int u; - int nports; - struct fe_probe_list const * list; - u_short const * addr; - u_short single [ 2 ]; - - /* Initialize "minimum" parts of our softc. */ - sc = &fe_softc[ dev->id_unit ]; - sc->sc_unit = dev->id_unit; - - /* TODO: Should be in each probe routines */ - sc->proto_bmpr14 = 0; - - /* Probe each possibility, one at a time. */ - for ( list = fe_probe_list; list->probe != NULL; list++ ) { - - if ( dev->id_iobase != NO_IOADDR ) { - /* Probe one specific address. */ - single[ 0 ] = dev->id_iobase; - single[ 1 ] = 0; - addr = single; - } else if ( list->addresses != NULL ) { - /* Auto detect. */ - addr = list->addresses; - } else { - /* We need a list of addresses to do auto detect. */ - continue; - } - - /* Probe all possible addresses for the board. */ - while ( *addr != 0 ) { - - /* See if the address is already in use. */ - for ( u = 0; u < NFE; u++ ) { - if ( fe_softc[u].iobase == *addr ) break; - } - -#if FE_DEBUG >= 3 - if ( u == NFE ) { - log( LOG_INFO, "fe%d: probing %d at 0x%x\n", - sc->sc_unit, list - fe_probe_list, *addr ); - } else if ( u == sc->sc_unit ) { - log( LOG_INFO, "fe%d: re-probing %d at 0x%x?\n", - sc->sc_unit, list - fe_probe_list, *addr ); - } else { - log( LOG_INFO, "fe%d: skipping %d at 0x%x\n", - sc->sc_unit, list - fe_probe_list, *addr ); - } -#endif - - /* Probe the address if it is free. */ - if ( u == NFE || u == sc->sc_unit ) { - - /* Probe an address. */ - sc->iobase = *addr; - nports = list->probe( dev, sc ); - if ( nports > 0 ) { - /* Found. */ - dev->id_iobase = *addr; - return ( nports ); - } - sc->iobase = 0; - } - - /* Try next. */ - addr++; - } - } - - /* Probe failed. */ - return ( 0 ); -} - -/* - * Check for specific bits in specific registers have specific values. - */ -struct fe_simple_probe_struct -{ - u_char port; /* Offset from the base I/O address. */ - u_char mask; /* Bits to be checked. */ - u_char bits; /* Values to be compared against. */ -}; - -static int -fe_simple_probe ( struct fe_softc const * sc, - struct fe_simple_probe_struct const * sp ) -{ - struct fe_simple_probe_struct const * p; - - for ( p = sp; p->mask != 0; p++ ) { -#if FE_DEBUG >=2 - printf("Probe Port:%x,Value:%x,Mask:%x.Bits:%x\n", - p->port,inb(sc->ioaddr[ p->port]),p->mask,p->bits); -#endif - if ( ( inb( sc->ioaddr[ p->port ] ) & p->mask ) != p->bits ) - { - return ( 0 ); - } - } - return ( 1 ); -} - -/* - * Routines to read all bytes from the config EEPROM through MB86965A. - * I'm not sure what exactly I'm doing here... I was told just to follow - * the steps, and it worked. Could someone tell me why the following - * code works? (Or, why all similar codes I tried previously doesn't - * work.) FIXME. - */ - -static void -fe_strobe_eeprom ( u_short bmpr16 ) -{ - /* - * We must guarantee 800ns (or more) interval to access slow - * EEPROMs. The following redundant code provides enough - * delay with ISA timing. (Even if the bus clock is "tuned.") - * Some modification will be needed on faster busses. - */ - outb( bmpr16, FE_B16_SELECT ); - outb( bmpr16, FE_B16_SELECT ); - outb( bmpr16, FE_B16_SELECT | FE_B16_CLOCK ); - outb( bmpr16, FE_B16_SELECT | FE_B16_CLOCK ); - outb( bmpr16, FE_B16_SELECT ); - outb( bmpr16, FE_B16_SELECT ); -} - -static void -fe_read_eeprom ( struct fe_softc * sc, u_char * data ) -{ - u_short bmpr16 = sc->ioaddr[ FE_BMPR16 ]; - u_short bmpr17 = sc->ioaddr[ FE_BMPR17 ]; - u_char n, val, bit; - - /* Read bytes from EEPROM; two bytes per an iteration. */ - for ( n = 0; n < FE_EEPROM_SIZE / 2; n++ ) { - - /* Reset the EEPROM interface. */ - outb( bmpr16, 0x00 ); - outb( bmpr17, 0x00 ); - - /* Start EEPROM access. */ - outb( bmpr16, FE_B16_SELECT ); - outb( bmpr17, FE_B17_DATA ); - fe_strobe_eeprom( bmpr16 ); - - /* Pass the iteration count to the chip. */ - val = 0x80 | n; - for ( bit = 0x80; bit != 0x00; bit >>= 1 ) { - outb( bmpr17, ( val & bit ) ? FE_B17_DATA : 0 ); - fe_strobe_eeprom( bmpr16 ); - } - outb( bmpr17, 0x00 ); - - /* Read a byte. */ - val = 0; - for ( bit = 0x80; bit != 0x00; bit >>= 1 ) { - fe_strobe_eeprom( bmpr16 ); - if ( inb( bmpr17 ) & FE_B17_DATA ) { - val |= bit; - } - } - *data++ = val; - - /* Read one more byte. */ - val = 0; - for ( bit = 0x80; bit != 0x00; bit >>= 1 ) { - fe_strobe_eeprom( bmpr16 ); - if ( inb( bmpr17 ) & FE_B17_DATA ) { - val |= bit; - } - } - *data++ = val; - } - - /* Reset the EEPROM interface, again. */ - outb( bmpr16, 0x00 ); - outb( bmpr17, 0x00 ); - -#if FE_DEBUG >= 3 - /* Report what we got. */ - data -= FE_EEPROM_SIZE; - log( LOG_INFO, "fe%d: EEPROM:" - " %02x%02x%02x%02x %02x%02x%02x%02x -" - " %02x%02x%02x%02x %02x%02x%02x%02x -" - " %02x%02x%02x%02x %02x%02x%02x%02x -" - " %02x%02x%02x%02x %02x%02x%02x%02x\n", - sc->sc_unit, - data[ 0], data[ 1], data[ 2], data[ 3], - data[ 4], data[ 5], data[ 6], data[ 7], - data[ 8], data[ 9], data[10], data[11], - data[12], data[13], data[14], data[15], - data[16], data[17], data[18], data[19], - data[20], data[21], data[22], data[23], - data[24], data[25], data[26], data[27], - data[28], data[29], data[30], data[31] ); -#endif -} - -/* - * Hardware (vendor) specific probe routines. - */ - -#ifdef PC98 -/* - * Probe and initialization for Allied-Telesis RE1000 series. - */ -static int -fe_probe_re1000 ( DEVICE * isa_dev, struct fe_softc * sc ) -{ - int i, n; - int dlcr6, dlcr7; - u_char c = 0; - - static u_short const irqmap [ 4 ] = - { IRQ3, IRQ5, IRQ6, IRQ12 }; - -#if FE_DEBUG >= 3 - log( LOG_INFO, "fe%d: probe (0x%x) for RE1000\n", sc->sc_unit, sc->iobase ); - fe_dump( LOG_INFO, sc, NULL ); -#endif - - /* Setup an I/O address mapping table. */ - for ( i = 0; i < MAXREGISTERS; i++ ) { - sc->ioaddr[ i ] = sc->iobase + (i/2)*0x200 + (i%2); - } - - /* - * RE1000 does not use 86965 EEPROM interface. - */ - c ^= sc->sc_enaddr[0] = inb(sc->ioaddr[FE_RE1000_MAC0]); - c ^= sc->sc_enaddr[1] = inb(sc->ioaddr[FE_RE1000_MAC1]); - c ^= sc->sc_enaddr[2] = inb(sc->ioaddr[FE_RE1000_MAC2]); - c ^= sc->sc_enaddr[3] = inb(sc->ioaddr[FE_RE1000_MAC3]); - c ^= sc->sc_enaddr[4] = inb(sc->ioaddr[FE_RE1000_MAC4]); - c ^= sc->sc_enaddr[5] = inb(sc->ioaddr[FE_RE1000_MAC5]); - c ^= inb(sc->ioaddr[FE_RE1000_MACCHK]); - if (c != 0) return 0; - - if ( sc->sc_enaddr[ 0 ] != 0x00 - || sc->sc_enaddr[ 1 ] != 0x00 - || sc->sc_enaddr[ 2 ] != 0xF4 ) return 0; - - /* - * check interrupt configure - */ - for (n=0; n<4; n++) { - if (isa_dev->id_irq == irqmap[n]) break; - } - if (n == 4) return 0; - - /* - * set irq - */ - c = inb(sc->ioaddr[FE_RE1000_IRQCONF]); - c &= (~ FE_RE1000_IRQCONF_IRQ); - c |= (1 << (n + FE_RE1000_IRQCONF_IRQSHIFT)); - outb(sc->ioaddr[FE_RE1000_IRQCONF], c); - - sc->typestr = "RE1000"; - - /* - * Program the 86965 as follows: - * SRAM: 32KB, 100ns, byte-wide access. - * Transmission buffer: 4KB x 2. - * System bus interface: 16 bits. - */ - sc->proto_dlcr4 = FE_D4_LBC_DISABLE | FE_D4_CNTRL; /* FIXME */ - sc->proto_dlcr5 = 0; - sc->proto_dlcr6 = FE_D6_BUFSIZ_32KB | FE_D6_TXBSIZ_2x4KB - | FE_D6_BBW_BYTE | FE_D6_SBW_WORD | FE_D6_SRAM_100ns; - sc->proto_dlcr7 = FE_D7_BYTSWP_LH | FE_D7_IDENT_EC; - sc->proto_bmpr13 = FE_B13_TPTYPE_UTP | FE_B13_PORT_AUTO; - -#if FE_DEBUG >= 3 - fe_dump( LOG_INFO, sc, "RE1000 found" ); -#endif - - /* Initialize 86965. */ - outb( sc->ioaddr[FE_DLCR6], sc->proto_dlcr6 | FE_D6_DLC_DISABLE ); - DELAY(200); - - /* Disable all interrupts. */ - outb( sc->ioaddr[FE_DLCR2], 0 ); - outb( sc->ioaddr[FE_DLCR3], 0 ); - -#if FE_DEBUG >= 3 - fe_dump( LOG_INFO, sc, "end of fe_probe_re1000()" ); -#endif - - /* - * That's all. RE1000 occupies 2*16 I/O addresses, by the way. - */ - return 2; /* ??? */ -} - -/* - * Probe and initialization for Allied-Telesis RE1000Plus/ME1500 series. - */ -static int -fe_probe_re1000p ( DEVICE * isa_dev, struct fe_softc * sc ) -{ - int i, n, signature; - int dlcr6, dlcr7; - u_char eeprom [ FE_EEPROM_SIZE ]; - - static u_short const irqmap [ 4 ] = - { IRQ3, IRQ5, IRQ6, IRQ12 }; - static struct fe_simple_probe_struct const probe_signature1 [] = { - { FE_DLCR0, 0xBF, 0x00 }, - { FE_DLCR2, 0xFF, 0x00 }, - { FE_DLCR4, 0x0F, 0x06 }, - { FE_DLCR6, 0x0F, 0x06 }, - { 0 } - }; - static struct fe_simple_probe_struct const probe_signature2 [] = { - { FE_DLCR1, 0xFF, 0x00 }, - { FE_DLCR3, 0xFF, 0x00 }, - { FE_DLCR5, 0xFF, 0x41 }, - { 0 } - }; - static struct fe_simple_probe_struct const probe_table [] = { - { FE_DLCR2, 0x71, 0x00 }, - { FE_DLCR4, 0x08, 0x00 }, - { FE_DLCR5, 0x80, 0x00 }, - { 0 } - }; - static struct fe_simple_probe_struct const vendor_code [] = { - { FE_DLCR8, 0xFF, 0x00 }, - { FE_DLCR9, 0xFF, 0x00 }, - { FE_DLCR10, 0xFF, 0xF4 }, - { 0 } - }; - -#if FE_DEBUG >= 3 - log( LOG_INFO, "fe%d: probe (0x%x) for RE1000Plus/ME1500\n", sc->sc_unit, sc->iobase ); - fe_dump( LOG_INFO, sc, NULL ); -#endif - - /* Setup an I/O address mapping table. */ - for ( i = 0; i < 16; i++ ) { - sc->ioaddr[ i ] = sc->iobase + (i/2)*0x200 + (i%2); - } - for ( i = 16; i < MAXREGISTERS; i++ ) { - sc->ioaddr[ i ] = sc->iobase + i*0x200 - 0x1000; - } - - /* First, check the "signature" */ - signature = 0; - if (fe_simple_probe(sc, probe_signature1)) { - outb(sc->ioaddr[FE_DLCR6], (inb(sc->ioaddr[FE_DLCR6]) & 0xCF) | 0x16); - if (fe_simple_probe(sc, probe_signature2)) - signature = 1; - } - - /* - * If the "signature" not detected, 86965 *might* be previously - * initialized. So, check the Ethernet address here. - * - * Allied-Telesis uses 00 00 F4 ?? ?? ??. - */ - if (signature == 0) { - /* Simple check */ - if (!fe_simple_probe(sc, probe_table)) return 0; - - /* Disable DLC */ - dlcr6 = inb(sc->ioaddr[FE_DLCR6]); - outb(sc->ioaddr[FE_DLCR6], dlcr6 | FE_D6_DLC_DISABLE); - /* Select register bank for DLCR */ - dlcr7 = inb(sc->ioaddr[FE_DLCR7]); - outb(sc->ioaddr[FE_DLCR7], dlcr7 & 0xF3 | FE_D7_RBS_DLCR); - - /* Check the Ethernet address */ - if (!fe_simple_probe(sc, vendor_code)) return 0; - - /* Restore configuration registers */ - DELAY(200); - outb(sc->ioaddr[FE_DLCR6], dlcr6); - outb(sc->ioaddr[FE_DLCR7], dlcr7); - } - - /* - * We are now almost sure we have an 86965 at the given - * address. So, read EEPROM through 86965. We have to write - * into LSI registers to read from EEPROM. I want to avoid it - * at this stage, but I cannot test the presense of the chip - * any further without reading EEPROM. FIXME. - */ - fe_read_eeprom( sc, eeprom ); - - /* Make sure that config info in EEPROM and 86965 agree. */ - if ( eeprom[ FE_EEPROM_CONF ] != inb( sc->ioaddr[FE_BMPR19] ) ) { - return 0; - } - - /* - * Initialize constants in the per-line structure. - */ - - /* Get our station address from EEPROM. */ - bcopy( eeprom + FE_ATI_EEP_ADDR, sc->sc_enaddr, ETHER_ADDR_LEN ); - - sc->typestr = "RE1000Plus/ME1500"; - - /* - * Read IRQ configuration. - */ - n = (inb(sc->ioaddr[FE_BMPR19]) & FE_B19_IRQ ) >> FE_B19_IRQ_SHIFT; - isa_dev->id_irq = irqmap[n]; - - /* - * Program the 86965 as follows: - * SRAM: 32KB, 100ns, byte-wide access. - * Transmission buffer: 4KB x 2. - * System bus interface: 16 bits. - */ - sc->proto_dlcr4 = FE_D4_LBC_DISABLE | FE_D4_CNTRL; /* FIXME */ - sc->proto_dlcr5 = 0; - sc->proto_dlcr6 = FE_D6_BUFSIZ_32KB | FE_D6_TXBSIZ_2x4KB - | FE_D6_BBW_BYTE | FE_D6_SBW_WORD | FE_D6_SRAM_100ns; - sc->proto_dlcr7 = FE_D7_BYTSWP_LH | FE_D7_IDENT_EC; - sc->proto_bmpr13 = FE_B13_TPTYPE_UTP | FE_B13_PORT_AUTO; - -#if FE_DEBUG >= 3 - fe_dump( LOG_INFO, sc, "RE1000Plus/ME1500 found" ); -#endif - - /* Initialize 86965. */ - outb( sc->ioaddr[FE_DLCR6], sc->proto_dlcr6 | FE_D6_DLC_DISABLE ); - DELAY(200); - - /* Disable all interrupts. */ - outb( sc->ioaddr[FE_DLCR2], 0 ); - outb( sc->ioaddr[FE_DLCR3], 0 ); - -#if FE_DEBUG >= 3 - fe_dump( LOG_INFO, sc, "end of fe_probe_re1000p()" ); -#endif - - /* - * That's all. RE1000Plus/ME1500 occupies 2*16 I/O addresses, by the way. - */ - return 2; /* ??? */ -} - -/* - * Probe and initialization for Contec C-NET(9N)E series. - */ - -/* TODO: Should be in "if_fereg.h" */ -#define FE_CNET9NE_INTR 0x10 /* Interrupt Mask? */ -#define FE_CNET9NE_MAC0 0x11 /* Station(MAC) address */ -#define FE_CNET9NE_MAC1 0x13 -#define FE_CNET9NE_MAC2 0x15 -#define FE_CNET9NE_MAC3 0x17 -#define FE_CNET9NE_MAC4 0x19 -#define FE_CNET9NE_MAC5 0x1B - -/* TODO: Should be in "ic/mb86960.h" */ -#define FE_D7_ENDEC 0xC0 /* Encoder/Decoder mode(86960 only) */ -#define FE_D7_ENDEC_NORMAL_NICE 0x00 /* Normal NICE */ -#define FE_D7_ENDEC_NICE_MONITOR 0x40 /* NICE + Monitor */ -#define FE_D7_ENDEC_BYPASS 0x80 /* Encoder/Decoder Bypass */ -#define FE_D7_ENDEC_TEST 0xC0 /* Encoder/Decoder Test */ - -static int -fe_probe_cnet9ne ( DEVICE * isa_dev, struct fe_softc * sc ) -{ - int i; - u_char c; - -#if FE_DEBUG >= 3 - log( LOG_INFO, "fe%d: probe (0x%x) for C-NET(9N)E\n", sc->sc_unit, sc->iobase ); -#endif - - /* Setup an I/O address mapping table. */ - for ( i = 0; i < 16; i++ ) { - sc->ioaddr[i] = sc->iobase + i; - } - for ( ; i < MAXREGISTERS; i++ ) { - sc->ioaddr[i] = sc->iobase + 0x400 - 16 + i; - } - -#if FE_DEBUG >= 3 - fe_dump( LOG_INFO, sc, NULL ); -#endif - - /* Get our station address from EEPROM. */ - sc->sc_enaddr[0] = inb( sc->ioaddr[FE_CNET9NE_MAC0] ); - sc->sc_enaddr[1] = inb( sc->ioaddr[FE_CNET9NE_MAC1] ); - sc->sc_enaddr[2] = inb( sc->ioaddr[FE_CNET9NE_MAC2] ); - sc->sc_enaddr[3] = inb( sc->ioaddr[FE_CNET9NE_MAC3] ); - sc->sc_enaddr[4] = inb( sc->ioaddr[FE_CNET9NE_MAC4] ); - sc->sc_enaddr[5] = inb( sc->ioaddr[FE_CNET9NE_MAC5] ); - -#if 1 - /* - * Check the Ethernet address here. - * - * Contec uses 00 80 4C ?? ?? ??. - */ - if ( sc->sc_enaddr[0] != (u_char)0x00 - || sc->sc_enaddr[1] != (u_char)0x80 - || sc->sc_enaddr[2] != (u_char)0x4C ) { -#else - /* - * Make sure we got a valid Ethernet address. - */ - if ( ( sc->sc_enaddr[0] & 0x03 ) != 0x00 /* Multicast or Local address. */ - || ( sc->sc_enaddr[0] | sc->sc_enaddr[1] | sc->sc_enaddr[2] ) == 0x00 ) { -#endif -#if FE_DEBUG >= 3 - log( LOG_INFO, "fe%d: invalid MAC adrs(%x:%x:%x:%x:%x:%x)\n" - , sc->sc_unit - , (u_char)sc->sc_enaddr[0], (u_char)sc->sc_enaddr[1] - , (u_char)sc->sc_enaddr[2], (u_char)sc->sc_enaddr[3] - , (u_char)sc->sc_enaddr[4], (u_char)sc->sc_enaddr[5] ); -#endif - return 0; - } - - /* See if C-NET(9N)E is on its address. */ - if ( inb( sc->ioaddr[FE_DLCR6] ) == (u_char)0xff ) { -#if FE_DEBUG >= 3 - log( LOG_INFO, "fe%d: inb(%x) returns 0xff\n" - , sc->sc_unit, sc->ioaddr[FE_DLCR6] ); -#endif - return 0; - } - - sc->typestr = "C-NET9NE"; - - /* - * Program the 86960 as follows: - * SRAM: 64KB, word-wide access. - * Transmission buffer: 4KB x 2. - * System bus interface: 16 bits. - * Encoder/Decoder mode: Normal NICE. - * - * 86960 manual says that SRAM access-time can't be configured. - * (must be 1) - */ - sc->proto_dlcr4 = FE_D4_LBC_DISABLE | FE_D4_CNTRL; - sc->proto_dlcr5 = FE_D5_RMTRST; /* reserved bit(must be 1) */ - sc->proto_dlcr6 = FE_D6_BUFSIZ_64KB | FE_D6_TXBSIZ_2x4KB - | FE_D6_BBW_WORD | FE_D6_SBW_WORD | FE_D6_SRAM; -#ifndef CNET9NC - sc->proto_dlcr7 = FE_D7_BYTSWP_LH | FE_D7_ENDEC_NORMAL_NICE; -#else - sc->proto_dlcr7 = FE_D7_BYTSWP_LH | FE_D7_ENDEC_BYPASS; -#endif - sc->proto_bmpr13 = FE_B13_TPTYPE_UTP | FE_B13_PORT_AUTO; - sc->proto_bmpr14 = 0; - - sc->stop = sc->init = NULL; - -#if FE_DEBUG >= 3 - fe_dump( LOG_INFO, sc, "C-NET(9N)E found" ); -#endif - - /* Initialize 86960. */ - outb( sc->ioaddr[FE_DLCR6], sc->proto_dlcr6 | FE_D6_DLC_DISABLE ); - DELAY( 200 ); - -#if 1 /* XXX: Is this really necessary? FIXME. */ - c = inb( sc->ioaddr[FE_DLCR1] ); - if ( c == (u_char)0xff ) { -#if FE_DEBUG >= 3 - log( LOG_INFO, "fe%d: inb(%x) returns 0xff\n" - , sc->sc_unit, sc->ioaddr[FE_DLCR1] ); -#endif - return 0; - } - if ( ( c & FE_D1_PKTRDY ) == 0 ) { - outb( sc->ioaddr[FE_DLCR1], FE_D1_PKTRDY ); - } -#endif - - /* Disable all interrupts. */ - outb( sc->ioaddr[FE_DLCR2], 0 ); - outb( sc->ioaddr[FE_DLCR3], 0 ); - -#ifndef CNET9NC - /* Enable interrupt? FIXME. */ - outb( sc->ioaddr[FE_CNET9NE_INTR], 0x10 ); -#endif - -#if FE_DEBUG >= 3 - fe_dump( LOG_INFO, sc, "end of fe_probe_cnet9ne()" ); -#endif - - /* - * XXX: The I/O address range is fragmented in the CNET(9N)E. - * "16" is the number of regs at iobase. - */ - return 16; -} - -/* - * Probe and initialization for Contec C-NET(98)P2 series. - */ - -/* - * Routines to read all bytes from the config EEPROM through TDK 78Q8377A. - * I'm not sure what exactly I'm doing here... I was told just to follow - * the steps, and it worked. Could someone tell me why the following - * code works? FIXME. - */ - -static void -fe_strobe_eeprom_tdk ( u_short bmpr12 ) -{ - outb( bmpr12, 0x10 ); - outb( bmpr12, 0x12 ); - outb( bmpr12, 0x12 ); - outb( bmpr12, 0x16 ); - outb( bmpr12, 0x12 | 0x01 ); - outb( bmpr12, 0x16 | 0x01 ); - outb( bmpr12, 0x12 | 0x01 ); - outb( bmpr12, 0x16 | 0x01 ); - outb( bmpr12, 0x12 ); - outb( bmpr12, 0x16 ); -} - -static void -fe_read_eeprom_tdk ( struct fe_softc * sc, u_char * data ) -{ - u_short bmpr12 = sc->ioaddr[FE_DLCR12]; - u_char n, val, bit; - - outb( sc->ioaddr[FE_DLCR6], FE_D6_BBW_WORD | FE_D6_SBW_WORD - | FE_D6_DLC_DISABLE ); - outb( sc->ioaddr[FE_DLCR7], FE_D7_BYTSWP_LH | FE_D7_RBS_BMPR - | FE_D7_RDYPNS | FE_D7_POWER_UP ); - - /* Read bytes from EEPROM; two bytes per an iteration. */ - for ( n = 0; n < FE_EEPROM_SIZE / 2; n++ ) { - - /* Start EEPROM access. */ - fe_strobe_eeprom_tdk( bmpr12 ); - - /* Pass the iteration count to the chip. */ - for ( bit = 0x80; bit != 0x00; bit >>= 1 ) { - val = ( n & bit ) ? 0x01 : 0x00; - outb( bmpr12, 0x12 | val ); - outb( bmpr12, 0x16 | val ); - } - - /* Read a byte. */ - val = 0; - for ( bit = 0x80; bit != 0x00; bit >>= 1 ) { - outb( bmpr12, 0x12 ); - outb( bmpr12, 0x16 ); - if ( inb( bmpr12 ) & 0x01 ) { - val |= bit; - } - } - *data++ = val; - - /* Read one more byte. */ - val = 0; - for ( bit = 0x80; bit != 0x00; bit >>= 1 ) { - outb( bmpr12, 0x12 ); - outb( bmpr12, 0x16 ); - if ( inb( bmpr12 ) & 0x01 ) { - val |= bit; - } - } - *data++ = val; - - outb( bmpr12, 0x10 ); - } - - /* Reset the EEPROM interface. */ - outb( bmpr12, 0x00 ); - -#if FE_DEBUG >= 3 - /* Report what we got. */ - data -= FE_EEPROM_SIZE; - log( LOG_INFO, "fe%d: EEPROM:" - " %02x%02x%02x%02x %02x%02x%02x%02x -" - " %02x%02x%02x%02x %02x%02x%02x%02x -" - " %02x%02x%02x%02x %02x%02x%02x%02x -" - " %02x%02x%02x%02x %02x%02x%02x%02x\n", - sc->sc_unit, - data[ 0], data[ 1], data[ 2], data[ 3], - data[ 4], data[ 5], data[ 6], data[ 7], - data[ 8], data[ 9], data[10], data[11], - data[12], data[13], data[14], data[15], - data[16], data[17], data[18], data[19], - data[20], data[21], data[22], data[23], - data[24], data[25], data[26], data[27], - data[28], data[29], data[30], data[31] ); -#endif -} - -/* TODO: Should be in "if_fereg.h" */ -#define FE_CNET98P2_EEP_IRQ (0x04 * 2 + 1) /* Irq */ -#define FE_CNET98P2_EEP_ADDR (0x08 * 2) /* Station(MAC) address */ -#define FE_CNET98P2_EEP_DUPLEX (0x0c * 2 + 1) /* Duplex mode */ - -static int -fe_probe_cnet98p2 ( DEVICE * isa_dev, struct fe_softc * sc ) -{ - int i; - u_char duplex; - u_char eeprom[FE_EEPROM_SIZE]; - static u_short const irqmap [] = - /* INT0 INT1 INT2 */ - { NO_IRQ, NO_IRQ, NO_IRQ, IRQ3, NO_IRQ, IRQ5, IRQ6, NO_IRQ, - NO_IRQ, IRQ9, IRQ10, NO_IRQ, IRQ12, IRQ13, NO_IRQ, NO_IRQ }; - /* INT3 INT4 INT5 INT6 */ - -#if FE_DEBUG >= 3 - log( LOG_INFO, "fe%d: probe (0x%x) for C-NET(98)P2\n", sc->sc_unit, sc->iobase ); -#endif - - /* Setup an I/O address mapping table. */ - for ( i = 0; i < 16; i++ ) { - sc->ioaddr[i] = sc->iobase + i; - } - /* Full unused slots with a safe address. */ - for ( ; i < MAXREGISTERS; i++ ) { - sc->ioaddr[i] = sc->iobase; - } - -#if FE_DEBUG >= 3 - fe_dump( LOG_INFO, sc, NULL ); -#endif - - /* See if C-NET(98)P2 is on its address. */ - if ( inb( sc->ioaddr[FE_DLCR0] ) == (u_char)0xff ) { -#if FE_DEBUG >= 3 - log( LOG_INFO, "fe%d: inb(%x) returns 0xff\n" - , sc->sc_unit, sc->ioaddr[FE_DLCR0] ); -#endif - return 0; - } - if ( inb( sc->ioaddr[FE_DLCR6] ) == (u_char)0xff ) { -#if FE_DEBUG >= 3 - log( LOG_INFO, "fe%d: inb(%x) returns 0xff\n" - , sc->sc_unit, sc->ioaddr[FE_DLCR6] ); -#endif - return 0; - } - - /* - * We are now almost sure we have a 78Q8377 at the given - * address. So, read EEPROM through 78Q8377. We have to write - * into LSI registers to read from EEPROM. FIXME. - */ - fe_read_eeprom_tdk( sc, eeprom ); - - /* - * Initialize constants in the per-line structure. - */ - - /* Get our station address from EEPROM. */ - bcopy( eeprom + FE_CNET98P2_EEP_ADDR, sc->sc_enaddr, ETHER_ADDR_LEN ); - -#if 1 - /* - * Check the Ethernet address here. - * - * Contec uses 00 80 4C ?? ?? ??. - */ - if ( sc->sc_enaddr[0] != (u_char)0x00 - || sc->sc_enaddr[1] != (u_char)0x80 - || sc->sc_enaddr[2] != (u_char)0x4C ) { -#else - /* - * Make sure we got a valid Ethernet address. - */ - if ( ( sc->sc_enaddr[0] & 0x03 ) != 0x00 /* Multicast or Local address. */ - || ( sc->sc_enaddr[0] | sc->sc_enaddr[1] | sc->sc_enaddr[2] ) == 0x00 ) { -#endif -#if FE_DEBUG >= 3 - log( LOG_INFO, "fe%d: invalid MAC adrs(%x:%x:%x:%x:%x:%x)\n" - , sc->sc_unit - , (u_char)sc->sc_enaddr[0], (u_char)sc->sc_enaddr[1] - , (u_char)sc->sc_enaddr[2], (u_char)sc->sc_enaddr[3] - , (u_char)sc->sc_enaddr[4], (u_char)sc->sc_enaddr[5] ); -#endif - return 0; - } - - /* - * Get IRQ configuration from EEPROM. - */ - isa_dev->id_irq = irqmap[ eeprom[FE_CNET98P2_EEP_IRQ] ]; - if ( isa_dev->id_irq == NO_IRQ ) { -#if FE_DEBUG >= 3 - log( LOG_INFO, "fe%d: invalid irq configuration(%d)\n" - , sc->sc_unit, eeprom[FE_CNET98P2_EEP_IRQ] ); -#endif - return 0; - } - - /* - * Get Duplex-mode configuration from EEPROM. - */ - duplex = eeprom[FE_CNET98P2_EEP_DUPLEX] & FE_D4_DSC; - sc->typestr = ( duplex ? "CNET98P2(Full duplex)" - : "CNET98P2(Half duplex)" ); - - /* - * Program the 78Q8377 as follows: - * SRAM: 32KB, 100ns, byte-wide access. - * Transmission buffer: 4KB x 2. - * System bus interface: 16 bits. - * XXX: Should we add IDENT_NICE or IDENT_EC to DLCR7? FIXME. - */ - sc->proto_dlcr4 = FE_D4_LBC_DISABLE | FE_D4_CNTRL | duplex; - sc->proto_dlcr5 = 0; - sc->proto_dlcr6 = FE_D6_BUFSIZ_32KB | FE_D6_TXBSIZ_2x4KB - | FE_D6_BBW_BYTE | FE_D6_SBW_WORD | FE_D6_SRAM_100ns; - sc->proto_dlcr7 = FE_D7_BYTSWP_LH; - sc->proto_bmpr13 = FE_B13_TPTYPE_UTP | FE_B13_PORT_AUTO; - sc->proto_bmpr14 = FE_B14_FILTER; - - sc->stop = sc->init = NULL; - -#if FE_DEBUG >= 3 - fe_dump( LOG_INFO, sc, "C-NET(98)P2 found" ); -#endif - - /* Initialize 78Q8377. */ - outb( sc->ioaddr[FE_DLCR6], sc->proto_dlcr6 | FE_D6_DLC_DISABLE ); - DELAY( 200 ); - - /* Disable all interrupts. */ - outb( sc->ioaddr[FE_DLCR2], 0 ); - outb( sc->ioaddr[FE_DLCR3], 0 ); - -#if FE_DEBUG >= 3 - fe_dump( LOG_INFO, sc, "end of fe_probe_cnet98p2()" ); -#endif - - /* - * That's all. C-NET(98)P2 occupies 16 I/O addresses, as always. - */ - return 16; -} -#else -/* - * Probe and initialization for Fujitsu FMV-180 series boards - */ -static int -fe_probe_fmv ( DEVICE * dev, struct fe_softc * sc ) -{ - int i, n; - - static u_short const baseaddr [ 8 ] = - { 0x220, 0x240, 0x260, 0x280, 0x2A0, 0x2C0, 0x300, 0x340 }; - static u_short const irqmap [ 4 ] = - { IRQ3, IRQ7, IRQ10, IRQ15 }; - - static struct fe_simple_probe_struct const probe_table [] = { - { FE_DLCR2, 0x70, 0x00 }, - { FE_DLCR4, 0x08, 0x00 }, - /* { FE_DLCR5, 0x80, 0x00 }, Doesn't work. */ - - { FE_FMV0, 0x78, 0x50 }, /* ERRDY+PRRDY */ - { FE_FMV1, 0xB0, 0x00 }, /* FMV-183/184 has 0x48 bits. */ - { FE_FMV3, 0x7F, 0x00 }, -#if 1 - /* - * Test *vendor* part of the station address for Fujitsu. - * The test will gain reliability of probe process, but - * it rejects FMV-180 clone boards manufactured by other vendors. - * We have to turn the test off when such cards are made available. - */ - { FE_FMV4, 0xFF, 0x00 }, - { FE_FMV5, 0xFF, 0x00 }, - { FE_FMV6, 0xFF, 0x0E }, -#else - /* - * We can always verify the *first* 2 bits (in Ethernet - * bit order) are "no multicast" and "no local" even for - * unknown vendors. - */ - { FE_FMV4, 0x03, 0x00 }, -#endif - { 0 } - }; - - /* "Hardware revision ID" */ - int revision; - - /* - * See if the specified address is possible for FMV-180 series. - */ - for ( i = 0; i < 8; i++ ) { - if ( baseaddr[ i ] == sc->iobase ) break; - } - if ( i == 8 ) return 0; - - /* Setup an I/O address mapping table. */ - for ( i = 0; i < MAXREGISTERS; i++ ) { - sc->ioaddr[ i ] = sc->iobase + i; - } - - /* Simple probe. */ - if ( !fe_simple_probe( sc, probe_table ) ) return 0; - - /* Check if our I/O address matches config info. on EEPROM. */ - n = ( inb( sc->ioaddr[ FE_FMV2 ] ) & FE_FMV2_IOS ) - >> FE_FMV2_IOS_SHIFT; - if ( baseaddr[ n ] != sc->iobase ) { -#if 0 - /* May not work on some revisions of the cards... FIXME. */ - return 0; -#else - /* Just log the fact and see what happens... FIXME. */ - log( LOG_WARNING, "fe%d: strange I/O config?\n", sc->sc_unit ); -#endif - } - - /* Find the "hardware revision." */ - revision = inb( sc->ioaddr[ FE_FMV1 ] ) & FE_FMV1_REV; - - /* Determine the card type. */ - sc->typestr = NULL; - switch ( inb( sc->ioaddr[ FE_FMV0 ] ) & FE_FMV0_MEDIA ) { - case 0: - /* No interface? This doesn't seem to be an FMV-180... */ - return 0; - case FE_FMV0_MEDIUM_T: - switch ( revision ) { - case 8: - sc->typestr = "FMV-183"; - break; - case 12: - sc->typestr = "FMV-183 (on-board)"; - break; - } - break; - case FE_FMV0_MEDIUM_T | FE_FMV0_MEDIUM_5: - switch ( revision ) { - case 0: - sc->typestr = "FMV-181"; - break; - case 1: - sc->typestr = "FMV-181A"; - break; - } - break; - case FE_FMV0_MEDIUM_2: - switch ( revision ) { - case 8: - sc->typestr = "FMV-184 (CSR = 2)"; - break; - } - break; - case FE_FMV0_MEDIUM_5: - switch ( revision ) { - case 8: - sc->typestr = "FMV-184 (CSR = 1)"; - break; - } - break; - case FE_FMV0_MEDIUM_2 | FE_FMV0_MEDIUM_5: - switch ( revision ) { - case 0: - sc->typestr = "FMV-182"; - break; - case 1: - sc->typestr = "FMV-182A"; - break; - case 8: - sc->typestr = "FMV-184 (CSR = 3)"; - break; - } - break; - } - if ( sc->typestr == NULL ) { - /* Unknown card type... Hope the driver works. */ - sc->typestr = "unknown FMV-180 version"; - log( LOG_WARNING, "fe%d: %s: %x-%x-%x-%x\n", - sc->sc_unit, sc->typestr, - inb( sc->ioaddr[ FE_FMV0 ] ), - inb( sc->ioaddr[ FE_FMV1 ] ), - inb( sc->ioaddr[ FE_FMV2 ] ), - inb( sc->ioaddr[ FE_FMV3 ] ) ); - } - - /* - * An FMV-180 has been proved. - * Determine which IRQ to be used. - * - * In this version, we give a priority to the kernel config file. - * If the EEPROM and config don't match, say it to the user for - * an attention. - */ - n = ( inb( sc->ioaddr[ FE_FMV2 ] ) & FE_FMV2_IRS ) - >> FE_FMV2_IRS_SHIFT; - if ( dev->id_irq == NO_IRQ ) { - /* Just use the probed value. */ - dev->id_irq = irqmap[ n ]; - } else if ( dev->id_irq != irqmap[ n ] ) { - /* Don't match. */ - log( LOG_WARNING, - "fe%d: check IRQ in config; it may be incorrect\n", - sc->sc_unit ); - } - - /* - * Initialize constants in the per-line structure. - */ - - /* Get our station address from EEPROM. */ - inblk( sc, FE_FMV4, sc->sc_enaddr, ETHER_ADDR_LEN ); - - /* Make sure we got a valid station address. */ - if ( ( sc->sc_enaddr[ 0 ] & 0x03 ) != 0x00 - || ( sc->sc_enaddr[ 0 ] == 0x00 - && sc->sc_enaddr[ 1 ] == 0x00 - && sc->sc_enaddr[ 2 ] == 0x00 ) ) return 0; - - /* - * Register values which (may) depend on board design. - * - * Program the 86960 as follows: - * SRAM: 32KB, 100ns, byte-wide access. - * Transmission buffer: 4KB x 2. - * System bus interface: 16 bits. - */ - sc->proto_dlcr4 = FE_D4_LBC_DISABLE | FE_D4_CNTRL; - sc->proto_dlcr5 = 0; - sc->proto_dlcr6 = FE_D6_BUFSIZ_32KB | FE_D6_TXBSIZ_2x4KB - | FE_D6_BBW_BYTE | FE_D6_SBW_WORD | FE_D6_SRAM_100ns; - sc->proto_dlcr7 = FE_D7_BYTSWP_LH | FE_D7_IDENT_EC; - sc->proto_bmpr13 = FE_B13_TPTYPE_UTP | FE_B13_PORT_AUTO; - - /* - * Minimum initialization of the hardware. - * We write into registers; hope I/O ports have no - * overlap with other boards. - */ - - /* Initialize ASIC. */ - outb( sc->ioaddr[ FE_FMV3 ], 0 ); - outb( sc->ioaddr[ FE_FMV10 ], 0 ); - - /* Initialize 86960. */ - DELAY( 200 ); - outb( sc->ioaddr[ FE_DLCR6 ], sc->proto_dlcr6 | FE_D6_DLC_DISABLE ); - DELAY( 200 ); - - /* Disable all interrupts. */ - outb( sc->ioaddr[ FE_DLCR2 ], 0 ); - outb( sc->ioaddr[ FE_DLCR3 ], 0 ); - - /* "Refresh" hardware configuration. FIXME. */ - outb( sc->ioaddr[ FE_FMV2 ], inb( sc->ioaddr[ FE_FMV2 ] ) ); - - /* Turn the "master interrupt control" flag of ASIC on. */ - outb( sc->ioaddr[ FE_FMV3 ], FE_FMV3_IRQENB ); - - /* - * That's all. FMV-180 occupies 32 I/O addresses, by the way. - */ - return 32; -} - -/* - * Probe and initialization for Allied-Telesis AT1700/RE2000 series. - */ -static int -fe_probe_ati ( DEVICE * dev, struct fe_softc * sc ) -{ - int i, n; - u_char eeprom [ FE_EEPROM_SIZE ]; - u_char save16, save17; - - static u_short const baseaddr [ 8 ] = - { 0x260, 0x280, 0x2A0, 0x240, 0x340, 0x320, 0x380, 0x300 }; - static u_short const irqmaps [ 4 ][ 4 ] = - { - { IRQ3, IRQ4, IRQ5, IRQ9 }, - { IRQ10, IRQ11, IRQ12, IRQ15 }, - { IRQ3, IRQ11, IRQ5, IRQ15 }, - { IRQ10, IRQ11, IRQ14, IRQ15 }, - }; - static struct fe_simple_probe_struct const probe_table [] = { - { FE_DLCR2, 0x70, 0x00 }, - { FE_DLCR4, 0x08, 0x00 }, - { FE_DLCR5, 0x80, 0x00 }, -#if 0 - { FE_BMPR16, 0x1B, 0x00 }, - { FE_BMPR17, 0x7F, 0x00 }, -#endif - { 0 } - }; - - /* Assume we have 86965 and no need to restore these. */ - save16 = 0; - save17 = 0; - -#if FE_DEBUG >= 3 - log( LOG_INFO, "fe%d: probe (0x%x) for ATI\n", - sc->sc_unit, sc->iobase ); - fe_dump( LOG_INFO, sc, NULL ); -#endif - - /* - * See if the specified address is possible for MB86965A JLI mode. - */ - for ( i = 0; i < 8; i++ ) { - if ( baseaddr[ i ] == sc->iobase ) break; - } - if ( i == 8 ) goto NOTFOUND; - - /* Setup an I/O address mapping table. */ - for ( i = 0; i < MAXREGISTERS; i++ ) { - sc->ioaddr[ i ] = sc->iobase + i; - } - - /* - * We should test if MB86965A is on the base address now. - * Unfortunately, it is very hard to probe it reliably, since - * we have no way to reset the chip under software control. - * On cold boot, we could check the "signature" bit patterns - * described in the Fujitsu document. On warm boot, however, - * we can predict almost nothing about register values. - */ - if ( !fe_simple_probe( sc, probe_table ) ) goto NOTFOUND; - - /* Check if our I/O address matches config info on 86965. */ - n = ( inb( sc->ioaddr[ FE_BMPR19 ] ) & FE_B19_ADDR ) - >> FE_B19_ADDR_SHIFT; - if ( baseaddr[ n ] != sc->iobase ) goto NOTFOUND; - - /* - * We are now almost sure we have an AT1700 at the given - * address. So, read EEPROM through 86965. We have to write - * into LSI registers to read from EEPROM. I want to avoid it - * at this stage, but I cannot test the presence of the chip - * any further without reading EEPROM. FIXME. - */ - save16 = inb( sc->ioaddr[ FE_BMPR16 ] ); - save17 = inb( sc->ioaddr[ FE_BMPR17 ] ); - fe_read_eeprom( sc, eeprom ); - - /* Make sure the EEPROM is turned off. */ - outb( sc->ioaddr[ FE_BMPR16 ], 0 ); - outb( sc->ioaddr[ FE_BMPR17 ], 0 ); - - /* Make sure that config info in EEPROM and 86965 agree. */ - if ( eeprom[ FE_EEPROM_CONF ] != inb( sc->ioaddr[ FE_BMPR19 ] ) ) { - goto NOTFOUND; - } - - /* - * The following model identification codes are stolen from - * from the NetBSD port of the fe driver. My reviewers - * suggested minor revision. - */ - - /* Determine the card type. */ - switch (eeprom[FE_ATI_EEP_MODEL]) { - case FE_ATI_MODEL_AT1700T: - sc->typestr = "AT-1700T/RE2001"; - break; - case FE_ATI_MODEL_AT1700BT: - sc->typestr = "AT-1700BT/RE2003"; - break; - case FE_ATI_MODEL_AT1700FT: - sc->typestr = "AT-1700FT/RE2009"; - break; - case FE_ATI_MODEL_AT1700AT: - sc->typestr = "AT-1700AT/RE2005"; - break; - default: - sc->typestr = "unknown AT-1700/RE2000 ?"; - break; - } - - /* - * Try to determine IRQ settings. - * Different models use different ranges of IRQs. - */ - if ( dev->id_irq == NO_IRQ ) { - n = ( inb( sc->ioaddr[ FE_BMPR19 ] ) & FE_B19_IRQ ) - >> FE_B19_IRQ_SHIFT; - switch ( eeprom[ FE_ATI_EEP_REVISION ] & 0xf0 ) { - case 0x30: - dev->id_irq = irqmaps[ 3 ][ n ]; - break; - case 0x10: - case 0x50: - dev->id_irq = irqmaps[ 2 ][ n ]; - break; - case 0x40: - case 0x60: - if ( eeprom[ FE_ATI_EEP_MAGIC ] & 0x04 ) { - dev->id_irq = irqmaps[ 1 ][ n ]; - } else { - dev->id_irq = irqmaps[ 0 ][ n ]; - } - break; - default: - dev->id_irq = irqmaps[ 0 ][ n ]; - break; - } - } - - - /* - * Initialize constants in the per-line structure. - */ - - /* Get our station address from EEPROM. */ - bcopy( eeprom + FE_ATI_EEP_ADDR, sc->sc_enaddr, ETHER_ADDR_LEN ); - -#if 1 - /* - * This test doesn't work well for AT1700 look-alike by - * other vendors. - */ - /* Make sure the vendor part is for Allied-Telesis. */ - if ( sc->sc_enaddr[ 0 ] != 0x00 - || sc->sc_enaddr[ 1 ] != 0x00 - || sc->sc_enaddr[ 2 ] != 0xF4 ) return 0; - -#else - /* Make sure we got a valid station address. */ - if ( ( sc->sc_enaddr[ 0 ] & 0x03 ) != 0x00 - || ( sc->sc_enaddr[ 0 ] == 0x00 - && sc->sc_enaddr[ 1 ] == 0x00 - && sc->sc_enaddr[ 2 ] == 0x00 ) ) return 0; -#endif - - /* - * Program the 86960 as follows: - * SRAM: 32KB, 100ns, byte-wide access. - * Transmission buffer: 4KB x 2. - * System bus interface: 16 bits. - */ - sc->proto_dlcr4 = FE_D4_LBC_DISABLE | FE_D4_CNTRL; /* FIXME */ - sc->proto_dlcr5 = 0; - sc->proto_dlcr6 = FE_D6_BUFSIZ_32KB | FE_D6_TXBSIZ_2x4KB - | FE_D6_BBW_BYTE | FE_D6_SBW_WORD | FE_D6_SRAM_100ns; - sc->proto_dlcr7 = FE_D7_BYTSWP_LH | FE_D7_IDENT_EC; -#if 0 /* XXXX Should we use this? FIXME. */ - sc->proto_bmpr13 = eeprom[ FE_ATI_EEP_MEDIA ]; -#else - sc->proto_bmpr13 = FE_B13_TPTYPE_UTP | FE_B13_PORT_AUTO; -#endif - -#if FE_DEBUG >= 3 - fe_dump( LOG_INFO, sc, "ATI found" ); -#endif - - /* Setup hooks. This may solves a nasty bug. FIXME. */ - sc->init = fe_init_ati; - - /* Initialize 86965. */ - DELAY( 200 ); - outb( sc->ioaddr[ FE_DLCR6 ], sc->proto_dlcr6 | FE_D6_DLC_DISABLE ); - DELAY( 200 ); - - /* Disable all interrupts. */ - outb( sc->ioaddr[ FE_DLCR2 ], 0 ); - outb( sc->ioaddr[ FE_DLCR3 ], 0 ); - -#if FE_DEBUG >= 3 - fe_dump( LOG_INFO, sc, "end of fe_probe_ati()" ); -#endif - - /* - * That's all. AT1700 occupies 32 I/O addresses, by the way. - */ - return 32; - - NOTFOUND: - /* - * We have no AT1700 at a given address. - * Restore BMPR16 and BMPR17 if we have destroyed them, - * hoping that the hardware on the address didn't get - * bad side effect. - */ - if ( save16 != 0 | save17 != 0 ) { - outb( sc->ioaddr[ FE_BMPR16 ], save16 ); - outb( sc->ioaddr[ FE_BMPR17 ], save17 ); - } - return ( 0 ); -} - -/* ATI specific initialization routine. */ -static void -fe_init_ati ( struct fe_softc * sc ) -{ -/* - * I've told that the following operation "Resets" the chip. - * Hope this solve a bug which hangs up the driver under - * heavy load... FIXME. - */ - - /* Minimal initialization of 86965. */ - DELAY( 200 ); - outb( sc->ioaddr[ FE_DLCR6 ], sc->proto_dlcr6 | FE_D6_DLC_DISABLE ); - DELAY( 200 ); - - /* "Reset" by wrting into an undocument register location. */ - outb( sc->ioaddr[ 0x1F ], 0 ); - - /* How long do we have to wait after the reset? FIXME. */ - DELAY( 300 ); -} -#endif /* PC98 */ - -/* - * Probe and initialization for Gateway Communications' old cards. - */ -static int -fe_probe_gwy ( DEVICE * dev, struct fe_softc * sc ) -{ - int i; - - static struct fe_simple_probe_struct probe_table [] = { - { FE_DLCR2, 0x70, 0x00 }, - { FE_DLCR4, 0x08, 0x00 }, - { FE_DLCR7, 0xC0, 0x00 }, - /* - * Test *vendor* part of the address for Gateway. - * This test is essential to identify Gateway's cards. - * We shuld define some symbolic names for the - * following offsets. FIXME. - */ - { 0x18, 0xFF, 0x00 }, - { 0x19, 0xFF, 0x00 }, - { 0x1A, 0xFF, 0x61 }, - { 0 } - }; - - /* - * We need explicit IRQ and supported address. - * I'm not sure which address and IRQ is possible for Gateway - * Ethernet family. The following accepts everything. FIXME. - */ - if ( dev->id_irq == NO_IRQ || ( sc->iobase & ~0x3E0 ) != 0 ) { - return ( 0 ); - } - -#if FE_DEBUG >= 3 - fe_dump( LOG_INFO, sc, "top of probe" ); -#endif - - /* Setup an I/O address mapping table. */ - for ( i = 0; i < MAXREGISTERS; i++ ) { - sc->ioaddr[ i ] = sc->iobase + i; - } - - /* See if the card is on its address. */ - if ( !fe_simple_probe( sc, probe_table ) ) { - return 0; - } - - /* Determine the card type. */ - sc->typestr = "Gateway Ethernet w/ Fujitsu chipset"; - - /* Get our station address from EEPROM. */ - inblk( sc, 0x18, sc->sc_enaddr, ETHER_ADDR_LEN ); - - /* - * Program the 86960 as follows: - * SRAM: 16KB, 100ns, byte-wide access. - * Transmission buffer: 2KB x 2. - * System bus interface: 16 bits. - * Make sure to clear out ID bits in DLCR7 - * (They actually are Encoder/Decoder control in NICE.) - */ - sc->proto_dlcr4 = FE_D4_LBC_DISABLE | FE_D4_CNTRL; - sc->proto_dlcr5 = 0; - sc->proto_dlcr6 = FE_D6_BUFSIZ_16KB | FE_D6_TXBSIZ_2x2KB - | FE_D6_BBW_BYTE | FE_D6_SBW_WORD | FE_D6_SRAM_100ns; - sc->proto_dlcr7 = FE_D7_BYTSWP_LH; - sc->proto_bmpr13 = 0; - - /* Minimal initialization of 86960. */ - DELAY( 200 ); - outb( sc->ioaddr[ FE_DLCR6 ], sc->proto_dlcr6 | FE_D6_DLC_DISABLE ); - DELAY( 200 ); - - /* Disable all interrupts. */ - outb( sc->ioaddr[ FE_DLCR2 ], 0 ); - outb( sc->ioaddr[ FE_DLCR3 ], 0 ); - - /* That's all. The card occupies 32 I/O addresses, as always. */ - return 32; -} - -#if NCARD > 0 -/* - * Probe and initialization for Fujitsu MBH10302 PCMCIA Ethernet interface. - * Note that this is for 10302 only; MBH10304 is handled by fe_probe_tdk(). - */ -static int -fe_probe_mbh ( DEVICE * dev, struct fe_softc * sc ) -{ - int i; - - static struct fe_simple_probe_struct probe_table [] = { - { FE_DLCR0, 0x09, 0x00 }, - { FE_DLCR2, 0x79, 0x00 }, - { FE_DLCR4, 0x08, 0x00 }, - { FE_DLCR6, 0xFF, 0xB6 }, - /* - * The following location has the first byte of the card's - * Ethernet (MAC) address. - * We can always verify the *first* 2 bits (in Ethernet - * bit order) are "global" and "unicast" for any vendors'. - */ - { FE_MBH10, 0x03, 0x00 }, - - /* Just a gap? Seems reliable, anyway. */ - { 0x12, 0xFF, 0x00 }, - { 0x13, 0xFF, 0x00 }, - { 0x14, 0xFF, 0x00 }, - { 0x15, 0xFF, 0x00 }, - { 0x16, 0xFF, 0x00 }, - { 0x17, 0xFF, 0x00 }, -#if 0 - { 0x18, 0xFF, 0xFF }, - { 0x19, 0xFF, 0xFF }, -#endif - - { 0 } - }; - - /* - * We need explicit IRQ and supported address. - */ - if ( dev->id_irq == NO_IRQ || ( sc->iobase & ~0x3E0 ) != 0 ) { - return ( 0 ); - } - -#if FE_DEBUG >= 3 - fe_dump( LOG_INFO, sc, "top of probe" ); -#endif - - /* Setup an I/O address mapping table. */ - for ( i = 0; i < MAXREGISTERS; i++ ) { - sc->ioaddr[ i ] = sc->iobase + i; - } - - /* - * See if MBH10302 is on its address. - * I'm not sure the following probe code works. FIXME. - */ - if ( !fe_simple_probe( sc, probe_table ) ) return 0; - - /* Determine the card type. */ - sc->typestr = "MBH10302 (PCMCIA)"; - - /* - * Initialize constants in the per-line structure. - */ - - /* Get our station address from EEPROM. */ - inblk( sc, FE_MBH10, sc->sc_enaddr, ETHER_ADDR_LEN ); - - /* Make sure we got a valid station address. */ - if ( sc->sc_enaddr[ 0 ] == 0x00 - && sc->sc_enaddr[ 1 ] == 0x00 - && sc->sc_enaddr[ 2 ] == 0x00 ) return 0; - - /* - * Program the 86960 as follows: - * SRAM: 32KB, 100ns, byte-wide access. - * Transmission buffer: 4KB x 2. - * System bus interface: 16 bits. - */ - sc->proto_dlcr4 = FE_D4_LBC_DISABLE | FE_D4_CNTRL; - sc->proto_dlcr5 = 0; - sc->proto_dlcr6 = FE_D6_BUFSIZ_32KB | FE_D6_TXBSIZ_2x4KB - | FE_D6_BBW_BYTE | FE_D6_SBW_WORD | FE_D6_SRAM_100ns; - sc->proto_dlcr7 = FE_D7_BYTSWP_LH | FE_D7_IDENT_NICE; - sc->proto_bmpr13 = FE_B13_TPTYPE_UTP | FE_B13_PORT_AUTO; - - /* Setup hooks. We need a special initialization procedure. */ - sc->init = fe_init_mbh; - - /* - * Minimum initialization. - */ - - /* Minimal initialization of 86960. */ - DELAY( 200 ); - outb( sc->ioaddr[ FE_DLCR6 ], sc->proto_dlcr6 | FE_D6_DLC_DISABLE ); - DELAY( 200 ); - - /* Disable all interrupts. */ - outb( sc->ioaddr[ FE_DLCR2 ], 0 ); - outb( sc->ioaddr[ FE_DLCR3 ], 0 ); - -#if 1 /* FIXME. */ - /* Initialize system bus interface and encoder/decoder operation. */ - outb( sc->ioaddr[ FE_MBH0 ], FE_MBH0_MAGIC | FE_MBH0_INTR_DISABLE ); -#endif - - /* - * That's all. MBH10302 occupies 32 I/O addresses, by the way. - */ - return 32; -} - -/* MBH specific initialization routine. */ -static void -fe_init_mbh ( struct fe_softc * sc ) -{ - /* Minimal initialization of 86960. */ - DELAY( 200 ); - outb( sc->ioaddr[ FE_DLCR6 ], sc->proto_dlcr6 | FE_D6_DLC_DISABLE ); - DELAY( 200 ); - - /* Disable all interrupts. */ - outb( sc->ioaddr[ FE_DLCR2 ], 0 ); - outb( sc->ioaddr[ FE_DLCR3 ], 0 ); - - /* Enable master interrupt flag. */ - outb( sc->ioaddr[ FE_MBH0 ], FE_MBH0_MAGIC | FE_MBH0_INTR_ENABLE ); -} - -/* - * Probe and initialization for TDK/CONTEC PCMCIA Ethernet interface. - * by MASUI Kenji <masui@cs.titech.ac.jp> - * - * (Contec uses TDK Ethenet chip -- hosokawa) - * - * This version of fe_probe_tdk has been rewrote to handle - * *generic* PC card implementation of Fujitsu MB8696x and compatibles. - * The name _tdk is just for a historical reason. <seki> :-) - */ -static int -fe_probe_tdk ( DEVICE * dev, struct fe_softc * sc ) -{ - int i; - - static struct fe_simple_probe_struct probe_table [] = { - { FE_DLCR2, 0x70, 0x00 }, - { FE_DLCR4, 0x08, 0x00 }, - /* { FE_DLCR5, 0x80, 0x00 }, Does not work well. */ - { 0 } - }; - - /* We need an IRQ. */ - if ( dev->id_irq == NO_IRQ ) { - return ( 0 ); - } - - /* Generic driver needs Ethernet address taken from CIS. */ - if (sc->arpcom.ac_enaddr[0] == 0 - && sc->arpcom.ac_enaddr[1] == 0 - && sc->arpcom.ac_enaddr[2] == 0) { - return 0; - } - - /* Setup an I/O address mapping table; we need only 16 ports. */ - for (i = 0; i < 16; i++) { - sc->ioaddr[i] = sc->iobase + i; - } - /* Fill unused slots with a safe address. */ - for (i = 16; i < MAXREGISTERS; i++) { - sc->ioaddr[i] = sc->iobase; - } - - /* - * See if C-NET(PC)C is on its address. - */ - - if ( !fe_simple_probe( sc, probe_table ) ) return 0; - - /* Determine the card type. */ - sc->typestr = "Generic MB8696x Ethernet (PCMCIA)"; - - /* - * Initialize constants in the per-line structure. - */ - - /* The station address *must*be* already in sc_enaddr; - Make sure we got a valid station address. */ - if ( ( sc->sc_enaddr[ 0 ] & 0x03 ) != 0x00 - || ( sc->sc_enaddr[ 0 ] == 0x00 - && sc->sc_enaddr[ 1 ] == 0x00 - && sc->sc_enaddr[ 2 ] == 0x00 ) ) return 0; - - /* - * Program the 86965 as follows: - * SRAM: 32KB, 100ns, byte-wide access. - * Transmission buffer: 4KB x 2. - * System bus interface: 16 bits. - * XXX: Should we remove IDENT_NICE from DLCR7? Or, - * even add IDENT_EC instead? FIXME. - */ - sc->proto_dlcr4 = FE_D4_LBC_DISABLE | FE_D4_CNTRL; - sc->proto_dlcr5 = 0; - sc->proto_dlcr6 = FE_D6_BUFSIZ_32KB | FE_D6_TXBSIZ_2x4KB - | FE_D6_BBW_BYTE | FE_D6_SBW_WORD | FE_D6_SRAM_100ns; - sc->proto_dlcr7 = FE_D7_BYTSWP_LH | FE_D7_IDENT_NICE; - sc->proto_bmpr13 = FE_B13_TPTYPE_UTP | FE_B13_PORT_AUTO; - - /* Minimul initialization of 86960. */ - DELAY( 200 ); - outb( sc->ioaddr[ FE_DLCR6 ], sc->proto_dlcr6 | FE_D6_DLC_DISABLE ); - DELAY( 200 ); - - /* Disable all interrupts. */ - outb( sc->ioaddr[ FE_DLCR2 ], 0 ); - outb( sc->ioaddr[ FE_DLCR3 ], 0 ); - - /* - * That's all. C-NET(PC)C occupies 16 I/O addresses. - * - * Some PC cards (e.g., TDK and Contec) have 16 I/O addresses, - * while some others (e.g., Fujitsu) have 32. Fortunately, - * this generic driver never accesses latter 16 ports in 32 - * ports cards. So, we can assume the *generic* PC cards - * always have 16 ports. - * - * Moreover, PC card probe is isolated from ISA probe, and PC - * card probe routine doesn't use "# of ports" returned by this - * function. 16 v.s. 32 is not important now. - */ - return 16; -} -#endif /* NCARD > 0 */ - -/* - * Install interface into kernel networking data structures - */ -static int -fe_attach ( DEVICE * dev ) -{ -#if NCARD > 0 - static int already_ifattach[NFE]; -#endif - struct fe_softc *sc = &fe_softc[dev->id_unit]; - - dev->id_ointr = feintr; - - /* - * Initialize ifnet structure - */ - sc->sc_if.if_softc = sc; - sc->sc_if.if_unit = sc->sc_unit; - sc->sc_if.if_name = "fe"; - sc->sc_if.if_output = ether_output; - sc->sc_if.if_start = fe_start; - sc->sc_if.if_ioctl = fe_ioctl; - sc->sc_if.if_watchdog = fe_watchdog; - - /* - * Set default interface flags. - */ - sc->sc_if.if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; - - /* - * Set maximum size of output queue, if it has not been set. - * It is done here as this driver may be started after the - * system initialization (i.e., the interface is PCMCIA.) - * - * I'm not sure this is really necessary, but, even if it is, - * it should be done somewhere else, e.g., in if_attach(), - * since it must be a common workaround for all network drivers. - * FIXME. - */ - if ( sc->sc_if.if_snd.ifq_maxlen == 0 ) { - sc->sc_if.if_snd.ifq_maxlen = ifqmaxlen; - } - -#if FE_DEBUG >= 3 - fe_dump( LOG_INFO, sc, "attach()" ); -#endif - -#if FE_SINGLE_TRANSMISSION - /* Override txb config to allocate minimum. */ - sc->proto_dlcr6 &= ~FE_D6_TXBSIZ - sc->proto_dlcr6 |= FE_D6_TXBSIZ_2x2KB; -#endif - - /* Modify hardware config if it is requested. */ - if ( dev->id_flags & FE_FLAGS_OVERRIDE_DLCR6 ) { - sc->proto_dlcr6 = dev->id_flags & FE_FLAGS_DLCR6_VALUE; - } - - /* Find TX buffer size, based on the hardware dependent proto. */ - switch ( sc->proto_dlcr6 & FE_D6_TXBSIZ ) { - case FE_D6_TXBSIZ_2x2KB: sc->txb_size = 2048; break; - case FE_D6_TXBSIZ_2x4KB: sc->txb_size = 4096; break; - case FE_D6_TXBSIZ_2x8KB: sc->txb_size = 8192; break; - default: - /* Oops, we can't work with single buffer configuration. */ -#if FE_DEBUG >= 2 - log( LOG_WARNING, "fe%d: strange TXBSIZ config; fixing\n", - sc->sc_unit ); -#endif - sc->proto_dlcr6 &= ~FE_D6_TXBSIZ; - sc->proto_dlcr6 |= FE_D6_TXBSIZ_2x2KB; - sc->txb_size = 2048; - break; - } - - /* Attach and stop the interface. */ -#if NCARD > 0 - if (already_ifattach[dev->id_unit] != 1) { - if_attach(&sc->sc_if); - already_ifattach[dev->id_unit] = 1; - } -#else - if_attach(&sc->sc_if); -#endif - fe_stop(sc->sc_unit); /* This changes the state to IDLE. */ - ether_ifattach(&sc->sc_if); - - /* Print additional info when attached. */ - printf( "fe%d: address %6D, type %s\n", sc->sc_unit, - sc->sc_enaddr, ":" , sc->typestr ); -#if FE_DEBUG >= 3 - { - int buf, txb, bbw, sbw, ram; - - buf = txb = bbw = sbw = ram = -1; - switch ( sc->proto_dlcr6 & FE_D6_BUFSIZ ) { - case FE_D6_BUFSIZ_8KB: buf = 8; break; - case FE_D6_BUFSIZ_16KB: buf = 16; break; - case FE_D6_BUFSIZ_32KB: buf = 32; break; - case FE_D6_BUFSIZ_64KB: buf = 64; break; - } - switch ( sc->proto_dlcr6 & FE_D6_TXBSIZ ) { - case FE_D6_TXBSIZ_2x2KB: txb = 2; break; - case FE_D6_TXBSIZ_2x4KB: txb = 4; break; - case FE_D6_TXBSIZ_2x8KB: txb = 8; break; - } - switch ( sc->proto_dlcr6 & FE_D6_BBW ) { - case FE_D6_BBW_BYTE: bbw = 8; break; - case FE_D6_BBW_WORD: bbw = 16; break; - } - switch ( sc->proto_dlcr6 & FE_D6_SBW ) { - case FE_D6_SBW_BYTE: sbw = 8; break; - case FE_D6_SBW_WORD: sbw = 16; break; - } - switch ( sc->proto_dlcr6 & FE_D6_SRAM ) { - case FE_D6_SRAM_100ns: ram = 100; break; - case FE_D6_SRAM_150ns: ram = 150; break; - } - printf( "fe%d: SRAM %dKB %dbit %dns, TXB %dKBx2, %dbit I/O\n", - sc->sc_unit, buf, bbw, ram, txb, sbw ); - } -#endif - -#if NBPFILTER > 0 - /* If BPF is in the kernel, call the attach for it. */ - bpfattach( &sc->sc_if, DLT_EN10MB, sizeof(struct ether_header)); -#endif - return 1; -} - -/* - * Reset interface. - */ -static void -fe_reset ( int unit ) -{ - /* - * Stop interface and re-initialize. - */ - fe_stop(unit); - fe_init(unit); -} - -/* - * Stop everything on the interface. - * - * All buffered packets, both transmitting and receiving, - * if any, will be lost by stopping the interface. - */ -static void -fe_stop ( int unit ) -{ - struct fe_softc *sc = &fe_softc[unit]; - int s; - - s = splimp(); - -#if FE_DEBUG >= 3 - fe_dump( LOG_INFO, sc, "stop()" ); -#endif - - /* Disable interrupts. */ - outb( sc->ioaddr[ FE_DLCR2 ], 0x00 ); - outb( sc->ioaddr[ FE_DLCR3 ], 0x00 ); - - /* Stop interface hardware. */ - DELAY( 200 ); - outb( sc->ioaddr[ FE_DLCR6 ], sc->proto_dlcr6 | FE_D6_DLC_DISABLE ); - DELAY( 200 ); - - /* Clear all interrupt status. */ - outb( sc->ioaddr[ FE_DLCR0 ], 0xFF ); - outb( sc->ioaddr[ FE_DLCR1 ], 0xFF ); - - /* Put the chip in stand-by mode. */ - DELAY( 200 ); - outb( sc->ioaddr[ FE_DLCR7 ], sc->proto_dlcr7 | FE_D7_POWER_DOWN ); - DELAY( 200 ); - - /* Reset transmitter variables and interface flags. */ - sc->sc_if.if_flags &= ~( IFF_OACTIVE | IFF_RUNNING ); - sc->sc_if.if_timer = 0; - sc->txb_free = sc->txb_size; - sc->txb_count = 0; - sc->txb_sched = 0; - - /* MAR loading can be delayed. */ - sc->filter_change = 0; - - /* Update config status also. */ - - /* Call a hook. */ - if ( sc->stop ) sc->stop( sc ); - -#if FE_DEBUG >= 3 - fe_dump( LOG_INFO, sc, "end of stop()" ); -#endif - - (void) splx(s); -} - -/* - * Device timeout/watchdog routine. Entered if the device neglects to - * generate an interrupt after a transmit has been started on it. - */ -static void -fe_watchdog ( struct ifnet *ifp ) -{ - struct fe_softc *sc = (struct fe_softc *)ifp; - -#if FE_DEBUG >= 1 - /* A "debug" message. */ - log( LOG_ERR, "fe%d: transmission timeout (%d+%d)%s\n", - ifp->if_unit, sc->txb_sched, sc->txb_count, - ( ifp->if_flags & IFF_UP ) ? "" : " when down" ); - if ( sc->sc_if.if_opackets == 0 && sc->sc_if.if_ipackets == 0 ) { - log( LOG_WARNING, "fe%d: wrong IRQ setting in config?\n", - ifp->if_unit ); - } -#endif - -#if FE_DEBUG >= 3 - fe_dump( LOG_INFO, sc, NULL ); -#endif - - /* Record how many packets are lost by this accident. */ - ifp->if_oerrors += sc->txb_sched + sc->txb_count; - - /* Put the interface into known initial state. */ - if ( ifp->if_flags & IFF_UP ) { - fe_reset( ifp->if_unit ); - } else { - fe_stop( ifp->if_unit ); - } -} - -/* - * Initialize device. - */ -static void -fe_init ( int unit ) -{ - struct fe_softc *sc = &fe_softc[unit]; - int s; - -#if FE_DEBUG >= 3 - fe_dump( LOG_INFO, sc, "init()" ); -#endif - - /* We need an address. */ - if (TAILQ_EMPTY(&sc->sc_if.if_addrhead)) { /* XXX unlikely */ -#if FE_DEBUG >= 1 - log( LOG_ERR, "fe%d: init() without any address\n", - sc->sc_unit ); -#endif - return; - } - -#if FE_DEBUG >= 1 - /* - * Make sure we have a valid station address. - * The following test is applicable for any Ethernet interfaces. - * It can be done in somewhere common to all of them. FIXME. - */ - if ( ( sc->sc_enaddr[ 0 ] & 0x01 ) != 0 - || ( sc->sc_enaddr[ 0 ] == 0x00 - && sc->sc_enaddr[ 1 ] == 0x00 - && sc->sc_enaddr[ 2 ] == 0x00 ) ) { - log( LOG_ERR, "fe%d: invalid station address (%6D)\n", - sc->sc_unit, sc->sc_enaddr, ":" ); - return; - } -#endif - - /* Start initializing 86960. */ - s = splimp(); - - /* Call a hook. */ - if ( sc->init ) sc->init( sc ); - -#if FE_DEBUG >= 3 - fe_dump( LOG_INFO, sc, "after init hook" ); -#endif - - /* - * Make sure to disable the chip, also. - * This may also help re-programming the chip after - * hot insertion of PCMCIAs. - */ - DELAY( 200 ); - outb( sc->ioaddr[ FE_DLCR6 ], sc->proto_dlcr6 | FE_D6_DLC_DISABLE ); - DELAY( 200 ); - - /* Power up the chip and select register bank for DLCRs. */ - DELAY( 200 ); - outb( sc->ioaddr[ FE_DLCR7 ], - sc->proto_dlcr7 | FE_D7_RBS_DLCR | FE_D7_POWER_UP ); - DELAY( 200 ); - - /* Feed the station address. */ - outblk( sc, FE_DLCR8, sc->sc_enaddr, ETHER_ADDR_LEN ); - - /* Clear multicast address filter to receive nothing. */ - outb( sc->ioaddr[ FE_DLCR7 ], - sc->proto_dlcr7 | FE_D7_RBS_MAR | FE_D7_POWER_UP ); - outblk( sc, FE_MAR8, fe_filter_nothing.data, FE_FILTER_LEN ); - - /* Select the BMPR bank for runtime register access. */ - outb( sc->ioaddr[ FE_DLCR7 ], - sc->proto_dlcr7 | FE_D7_RBS_BMPR | FE_D7_POWER_UP ); - - /* Initialize registers. */ - outb( sc->ioaddr[ FE_DLCR0 ], 0xFF ); /* Clear all bits. */ - outb( sc->ioaddr[ FE_DLCR1 ], 0xFF ); /* ditto. */ - outb( sc->ioaddr[ FE_DLCR2 ], 0x00 ); - outb( sc->ioaddr[ FE_DLCR3 ], 0x00 ); - outb( sc->ioaddr[ FE_DLCR4 ], sc->proto_dlcr4 ); - outb( sc->ioaddr[ FE_DLCR5 ], sc->proto_dlcr5 ); - outb( sc->ioaddr[ FE_BMPR10 ], 0x00 ); - outb( sc->ioaddr[ FE_BMPR11 ], FE_B11_CTRL_SKIP | FE_B11_MODE1 ); - outb( sc->ioaddr[ FE_BMPR12 ], 0x00 ); - outb( sc->ioaddr[ FE_BMPR13 ], sc->proto_bmpr13 ); - outb( sc->ioaddr[ FE_BMPR14 ], 0x00 ); - outb( sc->ioaddr[ FE_BMPR15 ], 0x00 ); - -#if FE_DEBUG >= 3 - fe_dump( LOG_INFO, sc, "just before enabling DLC" ); -#endif - - /* Enable interrupts. */ - outb( sc->ioaddr[ FE_DLCR2 ], FE_TMASK ); - outb( sc->ioaddr[ FE_DLCR3 ], FE_RMASK ); - - /* Enable transmitter and receiver. */ - DELAY( 200 ); - outb( sc->ioaddr[ FE_DLCR6 ], sc->proto_dlcr6 | FE_D6_DLC_ENABLE ); - DELAY( 200 ); - -#if FE_DEBUG >= 3 - fe_dump( LOG_INFO, sc, "just after enabling DLC" ); -#endif - - /* - * Make sure to empty the receive buffer. - * - * This may be redundant, but *if* the receive buffer were full - * at this point, then the driver would hang. I have experienced - * some strange hang-up just after UP. I hope the following - * code solve the problem. - * - * I have changed the order of hardware initialization. - * I think the receive buffer cannot have any packets at this - * point in this version. The following code *must* be - * redundant now. FIXME. - * - * I've heard a rumore that on some PC card implementation of - * 8696x, the receive buffer can have some data at this point. - * The following message helps discovering the fact. FIXME. - */ - if ( !( inb( sc->ioaddr[ FE_DLCR5 ] ) & FE_D5_BUFEMP ) ) { - log( LOG_WARNING, - "fe%d: receive buffer has some data after reset\n", - sc->sc_unit ); - - fe_emptybuffer( sc ); - } - -#if FE_DEBUG >= 3 - fe_dump( LOG_INFO, sc, "after ERB loop" ); -#endif - - /* Do we need this here? Actually, no. I must be paranoia. */ - outb( sc->ioaddr[ FE_DLCR0 ], 0xFF ); /* Clear all bits. */ - outb( sc->ioaddr[ FE_DLCR1 ], 0xFF ); /* ditto. */ - -#if FE_DEBUG >= 3 - fe_dump( LOG_INFO, sc, "after FIXME" ); -#endif - /* Set 'running' flag, because we are now running. */ - sc->sc_if.if_flags |= IFF_RUNNING; - - /* - * At this point, the interface is running properly, - * except that it receives *no* packets. we then call - * fe_setmode() to tell the chip what packets to be - * received, based on the if_flags and multicast group - * list. It completes the initialization process. - */ - fe_setmode( sc ); - -#if FE_DEBUG >= 3 - fe_dump( LOG_INFO, sc, "after setmode" ); -#endif - - /* ...and attempt to start output queued packets. */ - fe_start( &sc->sc_if ); - -#if FE_DEBUG >= 3 - fe_dump( LOG_INFO, sc, "init() done" ); -#endif - - (void) splx(s); -} - -/* - * This routine actually starts the transmission on the interface - */ -static void -fe_xmit ( struct fe_softc * sc ) -{ - /* - * Set a timer just in case we never hear from the board again. - * We use longer timeout for multiple packet transmission. - * I'm not sure this timer value is appropriate. FIXME. - */ - sc->sc_if.if_timer = 1 + sc->txb_count; - - /* Update txb variables. */ - sc->txb_sched = sc->txb_count; - sc->txb_count = 0; - sc->txb_free = sc->txb_size; - sc->tx_excolls = 0; - - /* Start transmitter, passing packets in TX buffer. */ - outb( sc->ioaddr[ FE_BMPR10 ], sc->txb_sched | FE_B10_START ); -} - -/* - * Start output on interface. - * We make two assumptions here: - * 1) that the current priority is set to splimp _before_ this code - * is called *and* is returned to the appropriate priority after - * return - * 2) that the IFF_OACTIVE flag is checked before this code is called - * (i.e. that the output part of the interface is idle) - */ -void -fe_start ( struct ifnet *ifp ) -{ - struct fe_softc *sc = ifp->if_softc; - struct mbuf *m; - -#if FE_DEBUG >= 1 - /* Just a sanity check. */ - if ( ( sc->txb_count == 0 ) != ( sc->txb_free == sc->txb_size ) ) { - /* - * Txb_count and txb_free co-works to manage the - * transmission buffer. Txb_count keeps track of the - * used potion of the buffer, while txb_free does unused - * potion. So, as long as the driver runs properly, - * txb_count is zero if and only if txb_free is same - * as txb_size (which represents whole buffer.) - */ - log( LOG_ERR, "fe%d: inconsistent txb variables (%d, %d)\n", - sc->sc_unit, sc->txb_count, sc->txb_free ); - /* - * So, what should I do, then? - * - * We now know txb_count and txb_free contradicts. We - * cannot, however, tell which is wrong. More - * over, we cannot peek 86960 transmission buffer or - * reset the transmission buffer. (In fact, we can - * reset the entire interface. I don't want to do it.) - * - * If txb_count is incorrect, leaving it as-is will cause - * sending of garbage after next interrupt. We have to - * avoid it. Hence, we reset the txb_count here. If - * txb_free was incorrect, resetting txb_count just loose - * some packets. We can live with it. - */ - sc->txb_count = 0; - } -#endif - -#if FE_DEBUG >= 1 - /* - * First, see if there are buffered packets and an idle - * transmitter - should never happen at this point. - */ - if ( ( sc->txb_count > 0 ) && ( sc->txb_sched == 0 ) ) { - log( LOG_ERR, - "fe%d: transmitter idle with %d buffered packets\n", - sc->sc_unit, sc->txb_count ); - fe_xmit( sc ); - } -#endif - - /* - * Stop accepting more transmission packets temporarily, when - * a filter change request is delayed. Updating the MARs on - * 86960 flushes the transmission buffer, so it is delayed - * until all buffered transmission packets have been sent - * out. - */ - if ( sc->filter_change ) { - /* - * Filter change request is delayed only when the DLC is - * working. DLC soon raise an interrupt after finishing - * the work. - */ - goto indicate_active; - } - - for (;;) { - - /* - * See if there is room to put another packet in the buffer. - * We *could* do better job by peeking the send queue to - * know the length of the next packet. Current version just - * tests against the worst case (i.e., longest packet). FIXME. - * - * When adding the packet-peek feature, don't forget adding a - * test on txb_count against QUEUEING_MAX. - * There is a little chance the packet count exceeds - * the limit. Assume transmission buffer is 8KB (2x8KB - * configuration) and an application sends a bunch of small - * (i.e., minimum packet sized) packets rapidly. An 8KB - * buffer can hold 130 blocks of 62 bytes long... - */ - if ( sc->txb_free - < ETHER_MAX_LEN - ETHER_CRC_LEN + FE_DATA_LEN_LEN ) { - /* No room. */ - goto indicate_active; - } - -#if FE_SINGLE_TRANSMISSION - if ( sc->txb_count > 0 ) { - /* Just one packet per a transmission buffer. */ - goto indicate_active; - } -#endif - - /* - * Get the next mbuf chain for a packet to send. - */ - IF_DEQUEUE( &sc->sc_if.if_snd, m ); - if ( m == NULL ) { - /* No more packets to send. */ - goto indicate_inactive; - } - - /* - * Copy the mbuf chain into the transmission buffer. - * txb_* variables are updated as necessary. - */ - fe_write_mbufs( sc, m ); - - /* Start transmitter if it's idle. */ - if ( ( sc->txb_count > 0 ) && ( sc->txb_sched == 0 ) ) { - fe_xmit( sc ); - } - - /* - * Tap off here if there is a bpf listener, - * and the device is *not* in promiscuous mode. - * (86960 receives self-generated packets if - * and only if it is in "receive everything" - * mode.) - */ -#if NBPFILTER > 0 - if ( sc->sc_if.if_bpf - && !( sc->sc_if.if_flags & IFF_PROMISC ) ) { - bpf_mtap( &sc->sc_if, m ); - } -#endif - - m_freem( m ); - } - - indicate_inactive: - /* - * We are using the !OACTIVE flag to indicate to - * the outside world that we can accept an - * additional packet rather than that the - * transmitter is _actually_ active. Indeed, the - * transmitter may be active, but if we haven't - * filled all the buffers with data then we still - * want to accept more. - */ - sc->sc_if.if_flags &= ~IFF_OACTIVE; - return; - - indicate_active: - /* - * The transmitter is active, and there are no room for - * more outgoing packets in the transmission buffer. - */ - sc->sc_if.if_flags |= IFF_OACTIVE; - return; -} - -/* - * Drop (skip) a packet from receive buffer in 86960 memory. - */ -static void -fe_droppacket ( struct fe_softc * sc, int len ) -{ - int i; - - /* - * 86960 manual says that we have to read 8 bytes from the buffer - * before skip the packets and that there must be more than 8 bytes - * remaining in the buffer when issue a skip command. - * Remember, we have already read 4 bytes before come here. - */ - if ( len > 12 ) { - /* Read 4 more bytes, and skip the rest of the packet. */ - ( void )inw( sc->ioaddr[ FE_BMPR8 ] ); - ( void )inw( sc->ioaddr[ FE_BMPR8 ] ); - outb( sc->ioaddr[ FE_BMPR14 ], sc->proto_bmpr14 | FE_B14_SKIP ); - } else { - /* We should not come here unless receiving RUNTs. */ - for ( i = 0; i < len; i += 2 ) { - ( void )inw( sc->ioaddr[ FE_BMPR8 ] ); - } - } -} - -/* - * Empty receiving buffer. - */ -static void -fe_emptybuffer ( struct fe_softc * sc ) -{ - int i; - u_char saved_dlcr5; - -#if FE_DEBUG >= 2 - log( LOG_WARNING, "fe%d: emptying receive buffer\n", sc->sc_unit ); -#endif - /* - * Stop receiving packets, temporarily. - */ - saved_dlcr5 = inb( sc->ioaddr[ FE_DLCR5 ] ); - outb( sc->ioaddr[ FE_DLCR5 ], sc->proto_dlcr5 ); - DELAY(1300); - - /* - * When we come here, the receive buffer management should - * have been broken. So, we cannot use skip operation. - * Just discard everything in the buffer. - */ - for (i = 0; i < 32768; i++) { - if ( inb( sc->ioaddr[ FE_DLCR5 ] ) & FE_D5_BUFEMP ) break; - ( void )inw( sc->ioaddr[ FE_BMPR8 ] ); - } - - /* - * Double check. - */ - if ( inb( sc->ioaddr[ FE_DLCR5 ] ) & FE_D5_BUFEMP ) { - log( LOG_ERR, "fe%d: could not empty receive buffer\n", - sc->sc_unit ); - /* Hmm. What should I do if this happens? FIXME. */ - } - - /* - * Restart receiving packets. - */ - outb( sc->ioaddr[ FE_DLCR5 ], saved_dlcr5 ); -} - -/* - * Transmission interrupt handler - * The control flow of this function looks silly. FIXME. - */ -static void -fe_tint ( struct fe_softc * sc, u_char tstat ) -{ - int left; - int col; - - /* - * Handle "excessive collision" interrupt. - */ - if ( tstat & FE_D0_COLL16 ) { - - /* - * Find how many packets (including this collided one) - * are left unsent in transmission buffer. - */ - left = inb( sc->ioaddr[ FE_BMPR10 ] ); - -#if FE_DEBUG >= 2 - log( LOG_WARNING, "fe%d: excessive collision (%d/%d)\n", - sc->sc_unit, left, sc->txb_sched ); -#endif -#if FE_DEBUG >= 3 - fe_dump( LOG_INFO, sc, NULL ); -#endif - - /* - * Clear the collision flag (in 86960) here - * to avoid confusing statistics. - */ - outb( sc->ioaddr[ FE_DLCR0 ], FE_D0_COLLID ); - - /* - * Restart transmitter, skipping the - * collided packet. - * - * We *must* skip the packet to keep network running - * properly. Excessive collision error is an - * indication of the network overload. If we - * tried sending the same packet after excessive - * collision, the network would be filled with - * out-of-time packets. Packets belonging - * to reliable transport (such as TCP) are resent - * by some upper layer. - */ - outb( sc->ioaddr[ FE_BMPR11 ], - FE_B11_CTRL_SKIP | FE_B11_MODE1 ); - - /* Update statistics. */ - sc->tx_excolls++; - } - - /* - * Handle "transmission complete" interrupt. - */ - if ( tstat & FE_D0_TXDONE ) { - - /* - * Add in total number of collisions on last - * transmission. We also clear "collision occurred" flag - * here. - * - * 86960 has a design flaw on collision count on multiple - * packet transmission. When we send two or more packets - * with one start command (that's what we do when the - * transmission queue is crowded), 86960 informs us number - * of collisions occurred on the last packet on the - * transmission only. Number of collisions on previous - * packets are lost. I have told that the fact is clearly - * stated in the Fujitsu document. - * - * I considered not to mind it seriously. Collision - * count is not so important, anyway. Any comments? FIXME. - */ - - if ( inb( sc->ioaddr[ FE_DLCR0 ] ) & FE_D0_COLLID ) { - - /* Clear collision flag. */ - outb( sc->ioaddr[ FE_DLCR0 ], FE_D0_COLLID ); - - /* Extract collision count from 86960. */ - col = inb( sc->ioaddr[ FE_DLCR4 ] ); - col = ( col & FE_D4_COL ) >> FE_D4_COL_SHIFT; - if ( col == 0 ) { - /* - * Status register indicates collisions, - * while the collision count is zero. - * This can happen after multiple packet - * transmission, indicating that one or more - * previous packet(s) had been collided. - * - * Since the accurate number of collisions - * has been lost, we just guess it as 1; - * Am I too optimistic? FIXME. - */ - col = 1; - } - sc->sc_if.if_collisions += col; -#if FE_DEBUG >= 3 - log( LOG_WARNING, "fe%d: %d collision(s) (%d)\n", - sc->sc_unit, col, sc->txb_sched ); -#endif - } - - /* - * Update transmission statistics. - * Be sure to reflect number of excessive collisions. - */ - sc->sc_if.if_opackets += sc->txb_sched - sc->tx_excolls; - sc->sc_if.if_oerrors += sc->tx_excolls; - sc->sc_if.if_collisions += sc->tx_excolls * 16; - sc->txb_sched = 0; - - /* - * The transmitter is no more active. - * Reset output active flag and watchdog timer. - */ - sc->sc_if.if_flags &= ~IFF_OACTIVE; - sc->sc_if.if_timer = 0; - - /* - * If more data is ready to transmit in the buffer, start - * transmitting them. Otherwise keep transmitter idle, - * even if more data is queued. This gives receive - * process a slight priority. - */ - if ( sc->txb_count > 0 ) fe_xmit( sc ); - } -} - -/* - * Ethernet interface receiver interrupt. - */ -static void -fe_rint ( struct fe_softc * sc, u_char rstat ) -{ - u_short len; - u_char status; - int i; - - /* - * Update statistics if this interrupt is caused by an error. - */ - if ( rstat & ( FE_D1_OVRFLO | FE_D1_CRCERR - | FE_D1_ALGERR | FE_D1_SRTPKT ) ) { -#if FE_DEBUG >= 2 - log( LOG_WARNING, - "fe%d: receive error: %s%s%s%s(%02x)\n", - sc->sc_unit, - rstat & FE_D1_OVRFLO ? "OVR " : "", - rstat & FE_D1_CRCERR ? "CRC " : "", - rstat & FE_D1_ALGERR ? "ALG " : "", - rstat & FE_D1_SRTPKT ? "LEN " : "", - rstat ); -#endif - sc->sc_if.if_ierrors++; - } - - /* - * MB86960 has a flag indicating "receive queue empty." - * We just loop, checking the flag, to pull out all received - * packets. - * - * We limit the number of iterations to avoid infinite-loop. - * The upper bound is set to unrealistic high value. - */ - for (i = 0; i < FE_MAX_RECV_COUNT * 2; i++) { - - /* Stop the iteration if 86960 indicates no packets. */ - if ( inb( sc->ioaddr[ FE_DLCR5 ] ) & FE_D5_BUFEMP ) break; - - /* - * Extract A receive status byte. - * As our 86960 is in 16 bit bus access mode, we have to - * use inw() to get the status byte. The significant - * value is returned in lower 8 bits. - */ - status = ( u_char )inw( sc->ioaddr[ FE_BMPR8 ] ); -#if FE_DEBUG >= 4 - log( LOG_INFO, "fe%d: receive status = %04x\n", - sc->sc_unit, status ); -#endif - - /* - * Extract the packet length. - * It is a sum of a header (14 bytes) and a payload. - * CRC has been stripped off by the 86960. - */ - len = inw( sc->ioaddr[ FE_BMPR8 ] ); - -#if FE_DEBUG >= 1 - /* - * If there was an error with the received packet, it - * must be an indication of out-of-sync on receive - * buffer, because we have programmed the 8696x to - * to discard errored packets, even when the interface - * is in promiscuous mode. We have to re-synchronize. - */ - if (!(status & FE_RPH_GOOD)) { - log(LOG_ERR, - "fe%d: corrupted receive status byte (%02x)\n", - sc->arpcom.ac_if.if_unit, status); - sc->arpcom.ac_if.if_ierrors++; - fe_emptybuffer( sc ); - break; - } -#endif - -#if FE_DEBUG >= 1 - /* - * MB86960 checks the packet length and drop big packet - * before passing it to us. There are no chance we can - * get big packets through it, even if they are actually - * sent over a line. Hence, if the length exceeds - * the specified limit, it means some serious failure, - * such as out-of-sync on receive buffer management. - * - * Same for short packets, since we have programmed - * 86960 to drop short packets. - */ - if ( len > ETHER_MAX_LEN - ETHER_CRC_LEN - || len < ETHER_MIN_LEN - ETHER_CRC_LEN ) { - log( LOG_WARNING, - "fe%d: received a %s packet? (%u bytes)\n", - sc->sc_unit, - len < ETHER_MIN_LEN - ETHER_CRC_LEN - ? "partial" : "big", - len ); - sc->sc_if.if_ierrors++; - fe_emptybuffer( sc ); - break; - } -#endif - - /* - * Go get a packet. - */ - if ( fe_get_packet( sc, len ) < 0 ) { - -#if FE_DEBUG >= 2 - log( LOG_WARNING, "%s%d: out of mbuf;" - " dropping a packet (%u bytes)\n", - sc->sc_unit, len ); -#endif - - /* Skip a packet, updating statistics. */ - sc->sc_if.if_ierrors++; - fe_droppacket( sc, len ); - - /* - * Try extracting other packets, although they will - * cause out-of-mbuf error again. This is required - * to keep receiver interrupt comming. - * (Earlier versions had a bug on this point.) - */ - continue; - } - - /* Successfully received a packet. Update stat. */ - sc->sc_if.if_ipackets++; - } -} - -/* - * Ethernet interface interrupt processor - */ -static void -feintr ( int unit ) -{ - struct fe_softc *sc = &fe_softc[unit]; - u_char tstat, rstat; - - /* - * Loop until there are no more new interrupt conditions. - */ - for (;;) { - -#if FE_DEBUG >= 4 - fe_dump( LOG_INFO, sc, "intr()" ); -#endif - - /* - * Get interrupt conditions, masking unneeded flags. - */ - tstat = inb( sc->ioaddr[ FE_DLCR0 ] ) & FE_TMASK; - rstat = inb( sc->ioaddr[ FE_DLCR1 ] ) & FE_RMASK; - -#if FE_DEBUG >= 1 - /* Test for a "dead-lock" condition. */ - if ((rstat & FE_D1_PKTRDY) == 0 - && (inb(sc->ioaddr[FE_DLCR5]) & FE_D5_BUFEMP) == 0 - && (inb(sc->ioaddr[FE_DLCR1]) & FE_D1_PKTRDY) == 0) { - /* - * PKTRDY is off, while receive buffer is not empty. - * We did a double check to avoid a race condition... - * So, we should have missed an interrupt. - */ - log(LOG_WARNING, - "fe%d: missed a receiver interrupt?\n", - sc->arpcom.ac_if.if_unit); - /* Simulate the missed interrupt condition. */ - rstat |= FE_D1_PKTRDY; - } -#endif - - /* Stop processing if there are no interrupts to handle. */ - if ( tstat == 0 && rstat == 0 ) break; - - /* - * Reset the conditions we are acknowledging. - */ - outb( sc->ioaddr[ FE_DLCR0 ], tstat ); - outb( sc->ioaddr[ FE_DLCR1 ], rstat ); - - /* - * Handle transmitter interrupts. Handle these first because - * the receiver will reset the board under some conditions. - */ - if ( tstat ) { - fe_tint( sc, tstat ); - } - - /* - * Handle receiver interrupts - */ - if ( rstat ) { - fe_rint( sc, rstat ); - } - - /* - * Update the multicast address filter if it is - * needed and possible. We do it now, because - * we can make sure the transmission buffer is empty, - * and there is a good chance that the receive queue - * is empty. It will minimize the possibility of - * packet loss. - */ - if ( sc->filter_change - && sc->txb_count == 0 && sc->txb_sched == 0 ) { - fe_loadmar(sc); - sc->sc_if.if_flags &= ~IFF_OACTIVE; - } - - /* - * If it looks like the transmitter can take more data, - * attempt to start output on the interface. This is done - * after handling the receiver interrupt to give the - * receive operation priority. - * - * BTW, I'm not sure in what case the OACTIVE is on at - * this point. Is the following test redundant? - * - * No. This routine polls for both transmitter and - * receiver interrupts. 86960 can raise a receiver - * interrupt when the transmission buffer is full. - */ - if ( ( sc->sc_if.if_flags & IFF_OACTIVE ) == 0 ) { - fe_start( &sc->sc_if ); - } - - } -} - -/* - * Process an ioctl request. This code needs some work - it looks - * pretty ugly. - */ -static int -fe_ioctl ( struct ifnet * ifp, u_long command, caddr_t data ) -{ - struct fe_softc *sc = ifp->if_softc; - int s, error = 0; - -#if FE_DEBUG >= 3 - log( LOG_INFO, "fe%d: ioctl(%x)\n", sc->sc_unit, command ); -#endif - - s = splimp(); - - switch (command) { - - case SIOCSIFADDR: - { - struct ifaddr * ifa = ( struct ifaddr * )data; - - sc->sc_if.if_flags |= IFF_UP; - - switch (ifa->ifa_addr->sa_family) { -#ifdef INET - case AF_INET: - fe_init( sc->sc_unit ); /* before arp_ifinit */ - arp_ifinit( &sc->arpcom, ifa ); - break; -#endif -#ifdef IPX - /* - * XXX - This code is probably wrong - */ - case AF_IPX: - { - register struct ipx_addr *ina - = &(IA_SIPX(ifa)->sipx_addr); - - if (ipx_nullhost(*ina)) - ina->x_host = - *(union ipx_host *) (sc->sc_enaddr); else { - bcopy((caddr_t) ina->x_host.c_host, - (caddr_t) sc->sc_enaddr, - sizeof(sc->sc_enaddr)); - } - - /* - * Set new address - */ - fe_init(sc->sc_unit); - break; - } -#endif -#ifdef INET6 - case AF_INET6: - /* IPV6 added by shin 96.2.6 */ - fe_init(sc->sc_unit); - ndp6_ifinit(&sc->arpcom, ifa); - break; -#endif -#ifdef NS - - /* - * XXX - This code is probably wrong - */ - case AF_NS: - { - register struct ns_addr *ina - = &(IA_SNS(ifa)->sns_addr); - - if (ns_nullhost(*ina)) - ina->x_host = - *(union ns_host *) (sc->sc_enaddr); - else { - bcopy((caddr_t) ina->x_host.c_host, - (caddr_t) sc->sc_enaddr, - sizeof(sc->sc_enaddr)); - } - - /* - * Set new address - */ - fe_init(sc->sc_unit); - break; - } -#endif - default: - fe_init( sc->sc_unit ); - break; - } - break; - } - -#ifdef SIOCGIFADDR - case SIOCGIFADDR: - { - struct ifreq * ifr = ( struct ifreq * )data; - struct sockaddr * sa = ( struct sockaddr * )&ifr->ifr_data; - - bcopy((caddr_t)sc->sc_enaddr, - (caddr_t)sa->sa_data, ETHER_ADDR_LEN); - break; - } -#endif - -#ifdef SIOCGIFPHYSADDR - case SIOCGIFPHYSADDR: - { - struct ifreq * ifr = ( struct ifreq * )data; - - bcopy((caddr_t)sc->sc_enaddr, - (caddr_t)&ifr->ifr_data, ETHER_ADDR_LEN); - break; - } -#endif - -#ifdef notdef -#ifdef SIOCSIFPHYSADDR - case SIOCSIFPHYSADDR: - { - /* - * Set the physical (Ethernet) address of the interface. - * When and by whom is this command used? FIXME. - */ - struct ifreq * ifr = ( struct ifreq * )data; - - bcopy((caddr_t)&ifr->ifr_data, - (caddr_t)sc->sc_enaddr, ETHER_ADDR_LEN); - fe_setlinkaddr( sc ); - break; - } -#endif -#endif /* notdef */ - -#ifdef SIOCSIFFLAGS - case SIOCSIFFLAGS: - { - /* - * Switch interface state between "running" and - * "stopped", reflecting the UP flag. - */ - if ( sc->sc_if.if_flags & IFF_UP ) { - if ( ( sc->sc_if.if_flags & IFF_RUNNING ) == 0 ) { - fe_init( sc->sc_unit ); - } - } else { - if ( ( sc->sc_if.if_flags & IFF_RUNNING ) != 0 ) { - fe_stop( sc->sc_unit ); - } - } - - /* - * Promiscuous and/or multicast flags may have changed, - * so reprogram the multicast filter and/or receive mode. - */ - fe_setmode( sc ); - -#if FE_DEBUG >= 1 - /* "ifconfig fe0 debug" to print register dump. */ - if ( sc->sc_if.if_flags & IFF_DEBUG ) { - fe_dump( LOG_DEBUG, sc, "SIOCSIFFLAGS(DEBUG)" ); - } -#endif - break; - } -#endif - -#ifdef SIOCADDMULTI - case SIOCADDMULTI: - case SIOCDELMULTI: - /* - * Multicast list has changed; set the hardware filter - * accordingly. - */ - fe_setmode( sc ); - error = 0; - break; -#endif - -#ifdef SIOCSIFMTU - case SIOCSIFMTU: - { - /* - * Set the interface MTU. - */ - struct ifreq * ifr = ( struct ifreq * )data; - - if ( ifr->ifr_mtu > ETHERMTU ) { - error = EINVAL; - } else { - sc->sc_if.if_mtu = ifr->ifr_mtu; - } - break; - } -#endif - - default: - error = EINVAL; - } - - (void) splx(s); - return (error); -} - -/* - * Retrieve packet from receive buffer and send to the next level up via - * ether_input(). If there is a BPF listener, give a copy to BPF, too. - * Returns 0 if success, -1 if error (i.e., mbuf allocation failure). - */ -static int -fe_get_packet ( struct fe_softc * sc, u_short len ) -{ - struct ether_header *eh; - struct mbuf *m; - - /* - * NFS wants the data be aligned to the word (4 byte) - * boundary. Ethernet header has 14 bytes. There is a - * 2-byte gap. - */ -#define NFS_MAGIC_OFFSET 2 - - /* - * This function assumes that an Ethernet packet fits in an - * mbuf (with a cluster attached when necessary.) On FreeBSD - * 2.0 for x86, which is the primary target of this driver, an - * mbuf cluster has 4096 bytes, and we are happy. On ancient - * BSDs, such as vanilla 4.3 for 386, a cluster size was 1024, - * however. If the following #error message were printed upon - * compile, you need to rewrite this function. - */ -#if ( MCLBYTES < ETHER_MAX_LEN - ETHER_CRC_LEN + NFS_MAGIC_OFFSET ) -#error "Too small MCLBYTES to use fe driver." -#endif - - /* - * Our strategy has one more problem. There is a policy on - * mbuf cluster allocation. It says that we must have at - * least MINCLSIZE (208 bytes on FreeBSD 2.0 for x86) to - * allocate a cluster. For a packet of a size between - * (MHLEN - 2) to (MINCLSIZE - 2), our code violates the rule... - * On the other hand, the current code is short, simple, - * and fast, however. It does no harmful thing, just waists - * some memory. Any comments? FIXME. - */ - - /* Allocate an mbuf with packet header info. */ - MGETHDR(m, M_DONTWAIT, MT_DATA); - if ( m == NULL ) return -1; - - /* Attach a cluster if this packet doesn't fit in a normal mbuf. */ - if ( len > MHLEN - NFS_MAGIC_OFFSET ) { - MCLGET( m, M_DONTWAIT ); - if ( !( m->m_flags & M_EXT ) ) { - m_freem( m ); - return -1; - } - } - - /* Initialize packet header info. */ - m->m_pkthdr.rcvif = &sc->sc_if; - m->m_pkthdr.len = len; - - /* Set the length of this packet. */ - m->m_len = len; - - /* The following silliness is to make NFS happy */ - m->m_data += NFS_MAGIC_OFFSET; - - /* Get a packet. */ - insw( sc->ioaddr[ FE_BMPR8 ], m->m_data, ( len + 1 ) >> 1 ); - - /* Get (actually just point to) the header part. */ - eh = mtod( m, struct ether_header *); - -#define ETHER_ADDR_IS_MULTICAST(A) (*(char *)(A) & 1) - -#if NBPFILTER > 0 - /* - * Check if there's a BPF listener on this interface. - * If it is, hand off the raw packet to bpf. - */ - if ( sc->sc_if.if_bpf ) { - bpf_mtap( &sc->sc_if, m ); - } -#endif - - /* - * Make sure this packet is (or may be) directed to us. - * That is, the packet is either unicasted to our address, - * or broad/multi-casted. If any other packets are - * received, it is an indication of an error -- probably - * 86960 is in a wrong operation mode. - * Promiscuous mode is an exception. Under the mode, all - * packets on the media must be received. (We must have - * programmed the 86960 so.) - */ - - if ( ( sc->sc_if.if_flags & IFF_PROMISC ) - && !ETHER_ADDR_IS_MULTICAST( eh->ether_dhost ) - && bcmp( eh->ether_dhost, sc->sc_enaddr, ETHER_ADDR_LEN ) != 0 ) { - /* - * The packet was not for us. This is normal since - * we are now in promiscuous mode. Just drop the packet. - */ - m_freem( m ); - return 0; - } - -#if FE_DEBUG >= 3 - if ( !ETHER_ADDR_IS_MULTICAST( eh->ether_dhost ) - && bcmp( eh->ether_dhost, sc->sc_enaddr, ETHER_ADDR_LEN ) != 0 ) { - /* - * This packet was not for us. We can't be in promiscuous - * mode since the case was handled by above test. - * We found an error (of this driver.) - */ - log( LOG_WARNING, - "fe%d: got an unwanted packet, dst = %6D\n", - sc->sc_unit, eh->ether_dhost , ":" ); - m_freem( m ); - return 0; - } -#endif - - /* Strip off the Ethernet header. */ - m->m_pkthdr.len -= sizeof ( struct ether_header ); - m->m_len -= sizeof ( struct ether_header ); - m->m_data += sizeof ( struct ether_header ); - - /* Feed the packet to upper layer. */ - ether_input( &sc->sc_if, eh, m ); - return 0; -} - -/* - * Write an mbuf chain to the transmission buffer memory using 16 bit PIO. - * Returns number of bytes actually written, including length word. - * - * If an mbuf chain is too long for an Ethernet frame, it is not sent. - * Packets shorter than Ethernet minimum are legal, and we pad them - * before sending out. An exception is "partial" packets which are - * shorter than mandatory Ethernet header. - */ -static void -fe_write_mbufs ( struct fe_softc *sc, struct mbuf *m ) -{ - u_short addr_bmpr8 = sc->ioaddr[ FE_BMPR8 ]; - u_short length, len; - struct mbuf *mp; - u_char *data; - u_short savebyte; /* WARNING: Architecture dependent! */ -#define NO_PENDING_BYTE 0xFFFF - - static u_char padding [ ETHER_MIN_LEN - ETHER_CRC_LEN - ETHER_HDR_LEN ]; - -#if FE_DEBUG >= 1 - /* First, count up the total number of bytes to copy */ - length = 0; - for ( mp = m; mp != NULL; mp = mp->m_next ) { - length += mp->m_len; - } -#else - /* Just use the length value in the packet header. */ - length = m->m_pkthdr.len; -#endif - -#if FE_DEBUG >= 2 - /* Check if this matches the one in the packet header. */ - if ( length != m->m_pkthdr.len ) { - log( LOG_WARNING, "fe%d: packet length mismatch? (%d/%d)\n", - sc->sc_unit, length, m->m_pkthdr.len ); - } -#endif - -#if FE_DEBUG >= 1 - /* - * Should never send big packets. If such a packet is passed, - * it should be a bug of upper layer. We just ignore it. - * ... Partial (too short) packets, neither. - */ - if ( length < ETHER_HDR_LEN - || length > ETHER_MAX_LEN - ETHER_CRC_LEN ) { - log( LOG_ERR, - "fe%d: got an out-of-spec packet (%u bytes) to send\n", - sc->sc_unit, length ); - sc->sc_if.if_oerrors++; - return; - } -#endif - - /* - * Put the length word for this frame. - * Does 86960 accept odd length? -- Yes. - * Do we need to pad the length to minimum size by ourselves? - * -- Generally yes. But for (or will be) the last - * packet in the transmission buffer, we can skip the - * padding process. It may gain performance slightly. FIXME. - */ - outw( addr_bmpr8, max( length, ETHER_MIN_LEN - ETHER_CRC_LEN ) ); - - /* - * Update buffer status now. - * Truncate the length up to an even number, since we use outw(). - */ - length = ( length + 1 ) & ~1; - sc->txb_free -= FE_DATA_LEN_LEN + max( length, ETHER_MIN_LEN - ETHER_CRC_LEN); - sc->txb_count++; - - /* - * Transfer the data from mbuf chain to the transmission buffer. - * MB86960 seems to require that data be transferred as words, and - * only words. So that we require some extra code to patch - * over odd-length mbufs. - */ - savebyte = NO_PENDING_BYTE; - for ( mp = m; mp != 0; mp = mp->m_next ) { - - /* Ignore empty mbuf. */ - len = mp->m_len; - if ( len == 0 ) continue; - - /* Find the actual data to send. */ - data = mtod(mp, caddr_t); - - /* Finish the last byte. */ - if ( savebyte != NO_PENDING_BYTE ) { - outw( addr_bmpr8, savebyte | ( *data << 8 ) ); - data++; - len--; - savebyte = NO_PENDING_BYTE; - } - - /* output contiguous words */ - if (len > 1) { - outsw( addr_bmpr8, data, len >> 1); - data += len & ~1; - len &= 1; - } - - /* Save a remaining byte, if there is one. */ - if ( len > 0 ) { - savebyte = *data; - } - } - - /* Spit the last byte, if the length is odd. */ - if ( savebyte != NO_PENDING_BYTE ) { - outw( addr_bmpr8, savebyte ); - } - - /* Pad to the Ethernet minimum length, if the packet is too short. */ - if ( length < ETHER_MIN_LEN - ETHER_CRC_LEN ) { - outsw( addr_bmpr8, padding, ( ETHER_MIN_LEN - ETHER_CRC_LEN - length ) >> 1); - } -} - -/* - * Compute hash value for an Ethernet address - */ -static int -fe_hash ( u_char * ep ) -{ -#define FE_HASH_MAGIC_NUMBER 0xEDB88320L - - u_long hash = 0xFFFFFFFFL; - int i, j; - u_char b; - u_long m; - - for ( i = ETHER_ADDR_LEN; --i >= 0; ) { - b = *ep++; - for ( j = 8; --j >= 0; ) { - m = hash; - hash >>= 1; - if ( ( m ^ b ) & 1 ) hash ^= FE_HASH_MAGIC_NUMBER; - b >>= 1; - } - } - return ( ( int )( hash >> 26 ) ); -} - -/* - * Compute the multicast address filter from the - * list of multicast addresses we need to listen to. - */ -static struct fe_filter -fe_mcaf ( struct fe_softc *sc ) -{ - int index; - struct fe_filter filter; - struct ifmultiaddr *ifma; - - filter = fe_filter_nothing; - for (ifma = sc->arpcom.ac_if.if_multiaddrs.lh_first; ifma; - ifma = ifma->ifma_link.le_next) { - if (ifma->ifma_addr->sa_family != AF_LINK) - continue; - index = fe_hash(LLADDR((struct sockaddr_dl *)ifma->ifma_addr)); -#if FE_DEBUG >= 4 - log( LOG_INFO, "fe%d: hash(%6D) == %d\n", - sc->sc_unit, enm->enm_addrlo , ":", index ); -#endif - - filter.data[index >> 3] |= 1 << (index & 7); - } - return ( filter ); -} - -/* - * Calculate a new "multicast packet filter" and put the 86960 - * receiver in appropriate mode. - */ -static void -fe_setmode ( struct fe_softc *sc ) -{ - int flags = sc->sc_if.if_flags; - - /* - * If the interface is not running, we postpone the update - * process for receive modes and multicast address filter - * until the interface is restarted. It reduces some - * complicated job on maintaining chip states. (Earlier versions - * of this driver had a bug on that point...) - * - * To complete the trick, fe_init() calls fe_setmode() after - * restarting the interface. - */ - if ( !( flags & IFF_RUNNING ) ) return; - - /* - * Promiscuous mode is handled separately. - */ - if ( flags & IFF_PROMISC ) { - /* - * Program 86960 to receive all packets on the segment - * including those directed to other stations. - * Multicast filter stored in MARs are ignored - * under this setting, so we don't need to update it. - * - * Promiscuous mode in FreeBSD 2 is used solely by - * BPF, and BPF only listens to valid (no error) packets. - * So, we ignore erroneous ones even in this mode. - * (Older versions of fe driver mistook the point.) - */ - outb( sc->ioaddr[ FE_DLCR5 ], - sc->proto_dlcr5 | FE_D5_AFM0 | FE_D5_AFM1 ); - sc->filter_change = 0; - -#if FE_DEBUG >= 3 - log( LOG_INFO, "fe%d: promiscuous mode\n", sc->sc_unit ); -#endif - return; - } - - /* - * Turn the chip to the normal (non-promiscuous) mode. - */ - outb( sc->ioaddr[ FE_DLCR5 ], sc->proto_dlcr5 | FE_D5_AFM1 ); - - /* - * Find the new multicast filter value. - * I'm not sure we have to handle modes other than MULTICAST. - * Who sets ALLMULTI? Who turns MULTICAST off? FIXME. - */ - if ( flags & IFF_ALLMULTI ) { - sc->filter = fe_filter_all; - } else if ( flags & IFF_MULTICAST ) { - sc->filter = fe_mcaf( sc ); - } else { - sc->filter = fe_filter_nothing; - } - sc->filter_change = 1; - -#if FE_DEBUG >= 3 - log( LOG_INFO, "fe%d: address filter: [%8D]\n", - sc->sc_unit, sc->filter.data, " " ); -#endif - - /* - * We have to update the multicast filter in the 86960, A.S.A.P. - * - * Note that the DLC (Data Link Control unit, i.e. transmitter - * and receiver) must be stopped when feeding the filter, and - * DLC trashes all packets in both transmission and receive - * buffers when stopped. - * - * ... Are the above sentences correct? I have to check the - * manual of the MB86960A. FIXME. - * - * To reduce the packet loss, we delay the filter update - * process until buffers are empty. - */ - if ( sc->txb_sched == 0 && sc->txb_count == 0 - && !( inb( sc->ioaddr[ FE_DLCR1 ] ) & FE_D1_PKTRDY ) ) { - /* - * Buffers are (apparently) empty. Load - * the new filter value into MARs now. - */ - fe_loadmar(sc); - } else { - /* - * Buffers are not empty. Mark that we have to update - * the MARs. The new filter will be loaded by feintr() - * later. - */ -#if FE_DEBUG >= 4 - log( LOG_INFO, "fe%d: filter change delayed\n", sc->sc_unit ); -#endif - } -} - -/* - * Load a new multicast address filter into MARs. - * - * The caller must have splimp'ed before fe_loadmar. - * This function starts the DLC upon return. So it can be called only - * when the chip is working, i.e., from the driver's point of view, when - * a device is RUNNING. (I mistook the point in previous versions.) - */ -static void -fe_loadmar ( struct fe_softc * sc ) -{ - /* Stop the DLC (transmitter and receiver). */ - DELAY( 200 ); - outb( sc->ioaddr[ FE_DLCR6 ], sc->proto_dlcr6 | FE_D6_DLC_DISABLE ); - DELAY( 200 ); - - /* Select register bank 1 for MARs. */ - outb( sc->ioaddr[ FE_DLCR7 ], - sc->proto_dlcr7 | FE_D7_RBS_MAR | FE_D7_POWER_UP ); - - /* Copy filter value into the registers. */ - outblk( sc, FE_MAR8, sc->filter.data, FE_FILTER_LEN ); - - /* Restore the bank selection for BMPRs (i.e., runtime registers). */ - outb( sc->ioaddr[ FE_DLCR7 ], - sc->proto_dlcr7 | FE_D7_RBS_BMPR | FE_D7_POWER_UP ); - - /* Restart the DLC. */ - DELAY( 200 ); - outb( sc->ioaddr[ FE_DLCR6 ], sc->proto_dlcr6 | FE_D6_DLC_ENABLE ); - DELAY( 200 ); - - /* We have just updated the filter. */ - sc->filter_change = 0; - -#if FE_DEBUG >= 3 - log( LOG_INFO, "fe%d: address filter changed\n", sc->sc_unit ); -#endif -} - -#if FE_DEBUG >= 1 -static void -fe_dump ( int level, struct fe_softc * sc, char * message ) -{ - log( level, "fe%d: %s," - " DLCR = %02x %02x %02x %02x %02x %02x %02x %02x," - " BMPR = xx xx %02x %02x %02x %02x %02x %02x," - " asic = %02x %02x %02x %02x %02x %02x %02x %02x" - " + %02x %02x %02x %02x %02x %02x %02x %02x\n", - sc->sc_unit, message ? message : "registers", - inb( sc->ioaddr[ FE_DLCR0 ] ), inb( sc->ioaddr[ FE_DLCR1 ] ), - inb( sc->ioaddr[ FE_DLCR2 ] ), inb( sc->ioaddr[ FE_DLCR3 ] ), - inb( sc->ioaddr[ FE_DLCR4 ] ), inb( sc->ioaddr[ FE_DLCR5 ] ), - inb( sc->ioaddr[ FE_DLCR6 ] ), inb( sc->ioaddr[ FE_DLCR7 ] ), - inb( sc->ioaddr[ FE_BMPR10 ] ), inb( sc->ioaddr[ FE_BMPR11 ] ), - inb( sc->ioaddr[ FE_BMPR12 ] ), inb( sc->ioaddr[ FE_BMPR13 ] ), - inb( sc->ioaddr[ FE_BMPR14 ] ), inb( sc->ioaddr[ FE_BMPR15 ] ), - inb( sc->ioaddr[ 0x10 ] ), inb( sc->ioaddr[ 0x11 ] ), - inb( sc->ioaddr[ 0x12 ] ), inb( sc->ioaddr[ 0x13 ] ), - inb( sc->ioaddr[ 0x14 ] ), inb( sc->ioaddr[ 0x15 ] ), - inb( sc->ioaddr[ 0x16 ] ), inb( sc->ioaddr[ 0x17 ] ), - inb( sc->ioaddr[ 0x18 ] ), inb( sc->ioaddr[ 0x19 ] ), - inb( sc->ioaddr[ 0x1A ] ), inb( sc->ioaddr[ 0x1B ] ), - inb( sc->ioaddr[ 0x1C ] ), inb( sc->ioaddr[ 0x1D ] ), - inb( sc->ioaddr[ 0x1E ] ), inb( sc->ioaddr[ 0x1F ] ) ); -} -#endif |
