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ffbedc02de
a BSD4.4Lite1 feature, not a FreeBSD feature. <sys/ioctl.h> is a compatibility misfeature. Moved NPCI ifdef. This file didn't compile if NPCI <= 0. It shouldn't be configured in that case, but it is easy to support (mis)configuration of drivers without buses by generating null objects, and many drivers do it. Removed unused includes.
1092 lines
24 KiB
C
1092 lines
24 KiB
C
/*-
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* Copyright (c) 1997 Semen Ustimenko (semen@iclub.nsu.ru)
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* version: stable-165
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*
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*/
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/*
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* EtherPower II 10/100 Fast Ethernet (tx0)
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* (aka SMC9432TX based on SMC83c170 EPIC chip)
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*
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* Written by Semen Ustimenko.
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*
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* TODO:
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* Add IFF_MULTICAST support
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* Fix serious collision counter behaviour
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* Fix RX_TO_MBUF option
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*
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* stable-140:
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* first stable version
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*
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* stable-160:
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* added BPF support
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* fixed several bugs
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*
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* stable-161:
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* fixed BPF support
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* fixed several bugs
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*
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* stable-162:
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* fixed IFF_PROMISC mode support
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* added speed info displayed at startup (MII info)
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*
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* stable-163:
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* added media control code
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*
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* stable-164:
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* fixed some bugs
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*
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* stable-165:
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* fixed media control code
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*/
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#include "pci.h"
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#if NPCI > 0
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/mbuf.h>
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#include <sys/socket.h>
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#include <sys/malloc.h>
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#include <sys/kernel.h>
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#include <sys/sockio.h>
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#include <net/if.h>
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#include <net/if_mib.h>
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#include <netinet/in.h>
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#include <netinet/if_ether.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include <pci/pcivar.h>
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#include <pci/smc83c170.h>
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#include "bpfilter.h"
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#if NBPFILTER > 0
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#include <net/bpf.h>
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#endif
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/*
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* Global variables
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*/
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static u_long epic_pci_count;
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static epic_softc_t * epics[EPIC_MAX_DEVICES];
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struct pci_device txdevice = {
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"tx",
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epic_pci_probe,
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epic_pci_attach,
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&epic_pci_count,
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NULL };
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/*
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* Append this driver to pci drivers list
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*/
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DATA_SET ( pcidevice_set, txdevice );
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static int
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epic_ifioctl(register struct ifnet * ifp, int command, caddr_t data){
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epic_softc_t *sc = ifp->if_softc;
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struct ifreq *ifr = (struct ifreq *) data;
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int x, error = 0;
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x = splimp();
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switch (command) {
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case SIOCSIFADDR:
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case SIOCGIFADDR:
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ether_ioctl(ifp, command, data);
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break;
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case SIOCSIFFLAGS:
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/*
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* If the interface is marked up and stopped, then start it.
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* If it is marked down and running, then stop it.
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*/
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if (ifp->if_flags & IFF_UP) {
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if ((ifp->if_flags & IFF_RUNNING) == 0)
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epic_init(sc);
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} else {
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if (ifp->if_flags & IFF_RUNNING) {
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epic_stop(sc);
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ifp->if_flags &= ~IFF_RUNNING;
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}
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}
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/* Update RXCON register */
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epic_set_rx_mode( sc );
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/* Update SPEED */
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epic_set_media_speed( sc );
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break;
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case SIOCADDMULTI:
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case SIOCDELMULTI:
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/* Update out multicast list */
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#if defined(__FreeBSD__) && __FreeBSD__ >= 3
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epic_set_mc_table(sc);
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error = 0;
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#else
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error = (command == SIOCADDMULTI) ?
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ether_addmulti(ifr, &sc->epic_ac) :
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ether_delmulti(ifr, &sc->epic_ac);
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if (error == ENETRESET) {
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epic_set_mc_table(sc);
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error = 0;
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}
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#endif
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break;
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case SIOCSIFMTU:
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/*
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* Set the interface MTU.
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*/
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if (ifr->ifr_mtu > ETHERMTU) {
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error = EINVAL;
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} else {
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ifp->if_mtu = ifr->ifr_mtu;
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}
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break;
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default:
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error = EINVAL;
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}
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splx(x);
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return error;
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}
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/*
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* Ifstart function
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*/
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static void
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epic_ifstart(struct ifnet * const ifp){
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epic_softc_t *sc = ifp->if_softc;
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while( sc->pending_txs < TX_RING_SIZE ){
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int entry = sc->cur_tx % TX_RING_SIZE;
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struct epic_tx_buffer * buf = sc->tx_buffer + entry;
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struct mbuf *m,*m0;
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int len;
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if( buf->desc.status ) break;
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IF_DEQUEUE( &(sc->epic_if.if_snd), m );
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if( NULL == m ) return;
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m0 = m;
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for (len = 0; m != 0; m = m->m_next) {
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bcopy(mtod(m, caddr_t), buf->data + len, m->m_len);
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len += m->m_len;
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}
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buf->desc.txlength = max(len,ETHER_MIN_LEN-ETHER_CRC_LEN);
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buf->desc.control = 0x14; /* Interrupt when done */
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buf->desc.status = 0x8000; /* Pass ownership to the chip */
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/* Set watchdog timer */
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ifp->if_timer = 3;
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#if NBPFILTER > 0
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if( ifp->if_bpf ) bpf_mtap( ifp, m0 );
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#endif
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m_freem( m0 );
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/* Trigger an immediate transmit demand. */
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outl(sc->iobase + COMMAND, 0x0004);
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sc->cur_tx = ( sc->cur_tx + 1 ) % TX_RING_SIZE;
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sc->pending_txs++;
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}
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sc->epic_if.if_flags |= IFF_OACTIVE;
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return;
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}
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/*
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* IFWATCHDOG function
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*/
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static void
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epic_ifwatchdog(
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struct ifnet *ifp)
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{
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epic_softc_t *sc = ifp->if_softc;
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int x;
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int i;
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x = splimp();
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printf("tx%d: device timeout %d packets\n",
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sc->unit,sc->pending_txs);
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ifp->if_oerrors+=sc->pending_txs;
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epic_stop(sc);
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epic_init(sc);
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epic_ifstart(&sc->epic_if);
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splx(x);
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}
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/*
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* Interrupt function
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*/
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static void
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epic_intr_normal(
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void *arg)
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{
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epic_softc_t * sc = (epic_softc_t *) arg;
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int iobase = sc->iobase;
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int status;
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int i;
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status = inl(iobase + INTSTAT);
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/* Acknowledge all of the current interrupt sources ASAP. */
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outl( iobase + INTSTAT, status & 0x0000ffff);
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if( status & (INTSTAT_RQE|INTSTAT_HCC|INTSTAT_RCC|INTSTAT_OVW) )
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epic_rx_done( sc );
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if( status & (INTSTAT_TXC|INTSTAT_TQE|INTSTAT_TCC|INTSTAT_TXU) )
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epic_tx_done( sc );
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/*
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if( status & INTSTAT_GP2 ){
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printf("tx%d: GP2 int occured\n",sc->unit);
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epic_read_phy_register(sc->iobase,DP83840_BMSR);
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epic_read_phy_register(sc->iobase,DP83840_BMCR);
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}
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*/
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if( status & (INTSTAT_FATAL|INTSTAT_PMA|INTSTAT_PTA|INTSTAT_APE|INTSTAT_DPE) ){
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printf("tx%d: PCI fatal error occured (%s%s%s%s)",
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sc->unit,
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(status&INTSTAT_PMA)?"PMA":"",
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(status&INTSTAT_PTA)?" PTA":"",
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(status&INTSTAT_APE)?" APE":"",
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(status&INTSTAT_DPE)?" DPE":"");
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}
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/* UPDATE statistics */
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if (status & (INTSTAT_CNT | INTSTAT_TXU | INTSTAT_OVW | INTSTAT_RXE)) {
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/*
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* update dot3 Rx statistics
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*/
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sc->dot3stats.dot3StatsMissedFrames += inb(iobase + MPCNT);
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sc->dot3stats.dot3StatsFrameTooLongs += inb(iobase + ALICNT);
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sc->dot3stats.dot3StatsFCSErrors += inb(iobase + CRCCNT);
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/* Update if Rx statistics */
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if (status & (INTSTAT_OVW | INTSTAT_RXE))
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sc->epic_if.if_ierrors++;
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/* Tx FIFO underflow. */
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if (status & INTSTAT_TXU) {
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/* Inc. counters */
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sc->dot3stats.dot3StatsInternalMacTransmitErrors++;
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sc->epic_if.if_oerrors++;
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/* Restart the transmit process. */
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outl(iobase + COMMAND, COMMAND_TXUGO);
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}
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/* Clear all error sources. */
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outl(iobase + INTSTAT, status & 0x7f18);
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}
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/* If no packets are pending, thus no timeouts */
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if( sc->pending_txs == 0 )
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sc->epic_if.if_timer = 0;
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/* We should clear all interrupt sources. */
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outl(iobase + INTSTAT, 0xffffffff );
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return;
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}
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void
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epic_rx_done(
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epic_softc_t *sc )
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{
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int i = 0;
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u_int16_t len;
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struct epic_rx_buffer * buf;
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struct mbuf *m;
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struct ether_header *eh;
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while( !(sc->rx_buffer[sc->cur_rx].desc.status & 0x8000) && \
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i++ < RX_RING_SIZE ){
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int stt;
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buf = sc->rx_buffer + sc->cur_rx;
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stt = buf->desc.status;
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#if defined(EPIC_DEBUG)
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printf("tx%d: ",sc->unit);
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if(stt&1)printf("rsucc");
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else printf(" ");
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if(stt&2)printf(" faer");
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else printf(" ");
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if(stt&4)printf(" crer");
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else printf(" ");
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if(stt&8)printf(" mpac");
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else printf(" ");
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if(stt&16)printf(" mcas");
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else printf(" ");
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if(stt&32)printf(" bcas\n");
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else printf(" \n");
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#endif
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if( !(buf->desc.status&1) ){
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sc->epic_if.if_ierrors++;
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goto rxerror;
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}
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len = buf->desc.rxlength - ETHER_CRC_LEN;
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#if !defined(RX_TO_MBUF)
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/*
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* Copy data to new allocated mbuf
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*/
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MGETHDR(m, M_DONTWAIT, MT_DATA);
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if( NULL == m ) goto rxerror;
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if( (len+2) > MHLEN ){
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MCLGET(m,M_DONTWAIT);
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if( NULL == (m->m_flags & M_EXT) ){
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m_freem( m );
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goto rxerror;
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}
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}
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m->m_data += 2;
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memcpy( mtod(m,void*), buf->data, len );
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#else
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m = buf->mbuf;
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buf->mbuf = NULL;
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MGETHDR(buf->mbuf,M_DONTWAIT,MT_DATA);
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if( NULL == buf->mbuf ) /* XXXXX: to panic */
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panic("tx: low mbufs"); /* or not to panic?*/
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MCLGET(buf->mbuf,M_DONTWAIT);
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if( NULL == buf->mbuf )
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panic("tx: low mbufs");
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buf->data = mtod( buf->mbuf, caddr_t );
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buf->desc.bufaddr = vtophys( buf->data );
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buf->desc.status = 0x8000;
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#endif
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/*
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* First mbuf in packet holds the
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* ethernet and packet headers
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*/
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eh = mtod( m, struct ether_header * );
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m->m_pkthdr.rcvif = &(sc->epic_if);
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m->m_pkthdr.len = len;
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m->m_len = len;
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#if NBPFILTER > 0
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if( sc->epic_if.if_bpf ) bpf_mtap( &sc->epic_if, m );
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/* Accept only our packets, broadcasts and multicasts */
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if( (eh->ether_dhost[0] & 1) == 0 &&
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bcmp(eh->ether_dhost,sc->epic_ac.ac_enaddr,ETHER_ADDR_LEN)){
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m_freem(m);
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goto rxerror;
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}
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#endif
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m->m_pkthdr.len = len - sizeof(struct ether_header);
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m->m_len = len - sizeof( struct ether_header );
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m->m_data += sizeof( struct ether_header );
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ether_input(&sc->epic_if, eh, m);
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sc->epic_if.if_ipackets++;
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rxerror:
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/*
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* Mark descriptor as free
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*/
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buf->desc.rxlength = 0;
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buf->desc.status = 0x8000;
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sc->cur_rx = (sc->cur_rx+1) % RX_RING_SIZE;
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}
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epic_ifstart( &sc->epic_if );
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outl( sc->iobase + INTSTAT, INTSTAT_RCC );
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}
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|
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void
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epic_tx_done( epic_softc_t *sc ){
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int i = 0;
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u_int32_t if_flags=~0;
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int coll;
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u_int16_t stt;
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|
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while( i++ < TX_RING_SIZE ){
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struct epic_tx_buffer *buf = sc->tx_buffer + sc->dirty_tx;
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u_int16_t len = buf->desc.txlength;
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stt = buf->desc.status;
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|
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if( stt & 0x8000 )
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break; /* following packets are not Txed yet */
|
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|
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if( stt == 0 ){
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if_flags = ~IFF_OACTIVE;
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break;
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}
|
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|
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#if defined(EPIC_DEBUG)
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printf("tx%d: ",sc->unit);
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if(stt&1) printf(" succ");
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else printf(" ");
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if(stt&2) printf(" ndef");
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else printf(" ");
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if(stt&4) printf(" coll");
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else printf(" ");
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if(stt&8) printf(" urun");
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else printf(" ");
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if(stt&16) printf(" cdhb");
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else printf(" ");
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if(stt&32) printf(" oowc");
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else printf(" ");
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if(stt&64) printf(" deff");
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else printf(" ");
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printf(" %d\n",(stt>>8)&0xF);
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#endif
|
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|
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sc->pending_txs--; /* packet is finished */
|
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sc->dirty_tx = (sc->dirty_tx + 1) % TX_RING_SIZE;
|
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|
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coll = (stt >> 8) & 0xF; /* number of collisions*/
|
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|
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if( stt & 0x0001 ){
|
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sc->epic_if.if_opackets++;
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} else {
|
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if(stt & 0x0008)
|
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sc->dot3stats.dot3StatsCarrierSenseErrors++;
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|
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if(stt & 0x1050)
|
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sc->dot3stats.dot3StatsInternalMacTransmitErrors++;
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|
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if(stt & 0x1000) coll = 16;
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|
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sc->epic_if.if_oerrors++;
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}
|
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|
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if(stt & 0x0002) /* What does it mean? */
|
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sc->dot3stats.dot3StatsDeferredTransmissions++;
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|
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sc->epic_if.if_collisions += coll;
|
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|
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switch( coll ){
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case 0:
|
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break;
|
|
case 16:
|
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sc->dot3stats.dot3StatsExcessiveCollisions++;
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sc->dot3stats.dot3StatsCollFrequencies[15]++;
|
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break;
|
|
case 1:
|
|
sc->dot3stats.dot3StatsSingleCollisionFrames++;
|
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sc->dot3stats.dot3StatsCollFrequencies[0]++;
|
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break;
|
|
default:
|
|
sc->dot3stats.dot3StatsMultipleCollisionFrames++;
|
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sc->dot3stats.dot3StatsCollFrequencies[coll-1]++;
|
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break;
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}
|
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|
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buf->desc.status = 0;
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|
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if_flags = ~IFF_OACTIVE;
|
|
}
|
|
|
|
sc->epic_if.if_flags &= if_flags;
|
|
|
|
outl( sc->iobase + INTSTAT, INTSTAT_TCC );
|
|
|
|
if( !(sc->epic_if.if_flags & IFF_OACTIVE) )
|
|
epic_ifstart( &sc->epic_if );
|
|
}
|
|
|
|
/*
|
|
* Probe function
|
|
*/
|
|
static char*
|
|
epic_pci_probe(
|
|
pcici_t config_id,
|
|
pcidi_t device_id)
|
|
{
|
|
if( PCI_VENDORID(device_id) != SMC_VENDORID )
|
|
return NULL;
|
|
|
|
if( PCI_CHIPID(device_id) == CHIPID_83C170 )
|
|
return "SMC 83c170";
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* PCI_Attach function
|
|
*/
|
|
static void
|
|
epic_pci_attach(
|
|
pcici_t config_id,
|
|
int unit)
|
|
{
|
|
struct ifnet * ifp;
|
|
epic_softc_t *sc;
|
|
u_int32_t iobase;
|
|
u_int32_t irq;
|
|
u_int32_t phyid;
|
|
int i;
|
|
int s;
|
|
int phy, phy_idx;
|
|
|
|
/*
|
|
* Get iobase and irq level
|
|
*/
|
|
irq = PCI_CONF_READ(PCI_CFIT) & (0xFF);
|
|
if (!pci_map_port(config_id, PCI_CBIO,(u_short *) &iobase))
|
|
return;
|
|
|
|
/*
|
|
* Allocate and preinitialize softc structure
|
|
*/
|
|
sc = (epic_softc_t *) malloc(sizeof(epic_softc_t), M_DEVBUF, M_NOWAIT);
|
|
if (sc == NULL) return;
|
|
epics[ unit ] = sc;
|
|
|
|
/*
|
|
* Zero softc structure
|
|
*/
|
|
bzero(sc, sizeof(epic_softc_t));
|
|
|
|
/*
|
|
* Initialize softc
|
|
*/
|
|
sc->unit = unit;
|
|
sc->iobase = iobase;
|
|
sc->irq = irq;
|
|
|
|
/* Bring the chip out of low-power mode. */
|
|
outl( iobase + GENCTL, 0x0000 );
|
|
|
|
/* Magic?! If we don't set this bit the MII interface won't work. */
|
|
outl( iobase + TEST1, 0x0008 );
|
|
|
|
/* Read mac address (may be better is read from EEPROM?) */
|
|
for (i = 0; i < ETHER_ADDR_LEN / sizeof( u_int16_t); i++)
|
|
((u_int16_t *)sc->epic_macaddr)[i] = inw(iobase + LAN0 + i*4);
|
|
|
|
/* Display some info */
|
|
printf("tx%d: address %02x:%02x:%02x:%02x:%02x:%02x,",sc->unit,
|
|
sc->epic_macaddr[0],sc->epic_macaddr[1],sc->epic_macaddr[2],
|
|
sc->epic_macaddr[3],sc->epic_macaddr[4],sc->epic_macaddr[5]);
|
|
|
|
|
|
s = splimp();
|
|
|
|
/* Map interrupt */
|
|
if( !pci_map_int(config_id, epic_intr_normal, (void*)sc, &net_imask) ) {
|
|
printf("tx%d: couldn't map interrupt\n",unit);
|
|
epics[ unit ] = NULL;
|
|
free(sc, M_DEVBUF);
|
|
return;
|
|
}
|
|
|
|
/* Fill ifnet structure */
|
|
ifp = &sc->epic_if;
|
|
|
|
ifp->if_unit = unit;
|
|
ifp->if_name = "tx";
|
|
ifp->if_softc = sc;
|
|
ifp->if_flags = IFF_BROADCAST|IFF_SIMPLEX|IFF_MULTICAST|IFF_ALLMULTI;
|
|
ifp->if_ioctl = epic_ifioctl;
|
|
ifp->if_start = epic_ifstart;
|
|
ifp->if_watchdog = epic_ifwatchdog;
|
|
ifp->if_init = (if_init_f_t*)epic_init;
|
|
ifp->if_timer = 0;
|
|
ifp->if_output = ether_output;
|
|
ifp->if_linkmib = &sc->dot3stats;
|
|
ifp->if_linkmiblen = sizeof(struct ifmib_iso_8802_3);
|
|
|
|
sc->dot3stats.dot3StatsEtherChipSet =
|
|
DOT3CHIPSET(dot3VendorSMC,
|
|
dot3ChipSetSMC83c170);
|
|
|
|
sc->dot3stats.dot3Compliance = DOT3COMPLIANCE_COLLS;
|
|
|
|
printf(" type SMC9432TX");
|
|
|
|
i = epic_read_phy_register(iobase, DP83840_BMCR);
|
|
|
|
if( i & BMCR_AUTONEGOTIATION ){
|
|
printf(" [Auto-Neg.");
|
|
|
|
if( i & BMCR_100MBPS ) printf(" 100Mbps");
|
|
else printf(" 10Mbps");
|
|
|
|
if( i & BMCR_FULL_DUPLEX ) printf(" FD");
|
|
|
|
printf("]\n");
|
|
|
|
if( i & BMCR_FULL_DUPLEX )
|
|
printf("tx%d: WARNING! FD autonegotiated, not supported\n",sc->unit);
|
|
|
|
} else {
|
|
ifp->if_flags |= IFF_LINK0;
|
|
if( i & BMCR_100MBPS ) {
|
|
printf(" [100Mbps");
|
|
ifp->if_flags |= IFF_LINK2;
|
|
} else printf(" [10Mbps");
|
|
|
|
if( i & BMCR_FULL_DUPLEX ) {
|
|
printf(" FD");
|
|
ifp->if_flags |= IFF_LINK1;
|
|
}
|
|
printf("]\n");
|
|
}
|
|
#if defined(EPIC_DEBUG)
|
|
printf("tx%d: PHY id: (",sc->unit);
|
|
i=epic_read_phy_register(iobase,DP83840_PHYIDR1);
|
|
printf("%04x:",i);
|
|
phyid=i<<6;
|
|
i=epic_read_phy_register(iobase,DP83840_PHYIDR2);
|
|
printf("%04x)",i);
|
|
phyid|=((i>>10)&0x3F);
|
|
printf(" %08x, rev %x, mod %x\n",phyid,(i)&0xF, (i>>4)&0x3f);
|
|
#endif
|
|
|
|
epic_read_phy_register(iobase,DP83840_BMSR);
|
|
epic_read_phy_register(iobase,DP83840_BMSR);
|
|
epic_read_phy_register(iobase,DP83840_BMSR);
|
|
i=epic_read_phy_register(iobase,DP83840_BMSR);
|
|
|
|
if( !(i & BMSR_LINK_STATUS) )
|
|
printf("tx%d: WARNING! no link estabilished/n",sc->unit);
|
|
|
|
/*
|
|
* Attach to if manager
|
|
*/
|
|
if_attach(ifp);
|
|
ether_ifattach(ifp);
|
|
|
|
#if NBPFILTER > 0
|
|
bpfattach(ifp,DLT_EN10MB, sizeof(struct ether_header));
|
|
#endif
|
|
|
|
splx(s);
|
|
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* IFINIT function
|
|
*/
|
|
static void
|
|
epic_init(
|
|
epic_softc_t * sc)
|
|
{
|
|
struct ifnet *ifp = &sc->epic_if;
|
|
int iobase = sc->iobase;
|
|
int i;
|
|
|
|
/* Soft reset the chip. */
|
|
outl(iobase + GENCTL, GENCTL_SOFT_RESET );
|
|
|
|
/* Reset takes 15 ticks */
|
|
for(i=0;i<0x100;i++);
|
|
|
|
/* Wake up */
|
|
outl( iobase + GENCTL, 0 );
|
|
|
|
/* ?????? */
|
|
outl( iobase + TEST1, 0x0008);
|
|
|
|
/* Initialize rings or reinitialize */
|
|
epic_init_rings( sc );
|
|
|
|
/* Put node address to EPIC */
|
|
outl( iobase + LAN0 + 0x0, ((u_int16_t *)sc->epic_macaddr)[0] );
|
|
outl( iobase + LAN0 + 0x4, ((u_int16_t *)sc->epic_macaddr)[1] );
|
|
outl( iobase + LAN0 + 0x8, ((u_int16_t *)sc->epic_macaddr)[2] );
|
|
|
|
/* Enable interrupts, set for PCI read multiple and etc */
|
|
outl( iobase + GENCTL,
|
|
GENCTL_ENABLE_INTERRUPT | GENCTL_MEMORY_READ_MULTIPLE |
|
|
GENCTL_ONECOPY | GENCTL_RECEIVE_FIFO_THRESHOLD128 );
|
|
|
|
/* Set transmit threshold */
|
|
outl( iobase + ETXTHR, 0x40 );
|
|
|
|
/* Compute and set RXCON. */
|
|
epic_set_rx_mode( sc );
|
|
|
|
/* Set MII speed mode */
|
|
epic_set_media_speed( sc );
|
|
|
|
/* Set multicast table */
|
|
epic_set_mc_table( sc );
|
|
|
|
/* Enable interrupts by setting the interrupt mask. */
|
|
outl( iobase + INTMASK,
|
|
INTSTAT_RCC | INTSTAT_RQE | INTSTAT_OVW | INTSTAT_RXE |
|
|
INTSTAT_TXC | INTSTAT_TCC | INTSTAT_TQE | INTSTAT_TXU |
|
|
INTSTAT_CNT | /*INTSTAT_GP2 |*/ INTSTAT_FATAL |
|
|
INTSTAT_PTA | INTSTAT_PMA | INTSTAT_APE | INTSTAT_DPE );
|
|
|
|
/* Start rx process */
|
|
outl( iobase + COMMAND, COMMAND_RXQUEUED | COMMAND_START_RX );
|
|
|
|
/* Mark interface running ... */
|
|
if( ifp->if_flags & IFF_UP ) ifp->if_flags |= IFF_RUNNING;
|
|
else ifp->if_flags &= ~IFF_RUNNING;
|
|
|
|
/* ... and free */
|
|
ifp->if_flags &= ~IFF_OACTIVE;
|
|
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* This function should set EPIC's registers according IFF_* flags
|
|
*/
|
|
static void
|
|
epic_set_rx_mode(
|
|
epic_softc_t * sc)
|
|
{
|
|
struct ifnet *ifp = &sc->epic_if;
|
|
u_int16_t rxcon = 0;
|
|
|
|
#if NBPFILTER > 0
|
|
if( sc->epic_if.if_flags & IFF_PROMISC )
|
|
rxcon |= RXCON_PROMISCUOUS_MODE;
|
|
#endif
|
|
|
|
if( sc->epic_if.if_flags & IFF_BROADCAST )
|
|
rxcon |= RXCON_RECEIVE_BROADCAST_FRAMES;
|
|
|
|
if( sc->epic_if.if_flags & IFF_MULTICAST )
|
|
rxcon |= RXCON_RECEIVE_MULTICAST_FRAMES;
|
|
|
|
outl( sc->iobase + RXCON, rxcon );
|
|
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* This function should set MII to mode specified by IFF_LINK* flags
|
|
*/
|
|
static void
|
|
epic_set_media_speed(
|
|
epic_softc_t * sc)
|
|
{
|
|
struct ifnet *ifp = &sc->epic_if;
|
|
u_int16_t media;
|
|
u_int32_t i;
|
|
|
|
/* Set media speed */
|
|
if( ifp->if_flags & IFF_LINK0 ){
|
|
/* Allow only manual fullduplex modes */
|
|
media = epic_read_phy_register( sc->iobase, DP83840_ANAR );
|
|
media |= ANAR_100|ANAR_10|ANAR_100_FD|ANAR_10_FD;
|
|
epic_write_phy_register( sc->iobase, DP83840_ANAR, media );
|
|
|
|
/* Set mode */
|
|
media = (ifp->if_flags&IFF_LINK2)?BMCR_100MBPS:0;
|
|
media |= (ifp->if_flags&IFF_LINK1)?BMCR_FULL_DUPLEX:0;
|
|
epic_write_phy_register( sc->iobase, DP83840_BMCR, media );
|
|
|
|
ifp->if_baudrate =
|
|
(ifp->if_flags&IFF_LINK2)?100000000:10000000;
|
|
|
|
outl( sc->iobase + TXCON,(ifp->if_flags&IFF_LINK1)?TXCON_LOOPBACK_MODE_FULL_DUPLEX|TXCON_DEFAULT:TXCON_DEFAULT );
|
|
|
|
#if defined(EPIC_DEBUG)
|
|
printf("tx%d: %dMbps %s\n",sc->unit,
|
|
(ifp->if_flags&IFF_LINK2)?100:10,
|
|
(ifp->if_flags&IFF_LINK1)?"full-duplex":"half-duplex" );
|
|
#endif
|
|
} else {
|
|
/* If autoneg is set, IFF_LINK flags are meaningless */
|
|
ifp->if_flags &= ~(IFF_LINK0|IFF_LINK1|IFF_LINK2);
|
|
ifp->if_baudrate = 100000000;
|
|
|
|
outl( sc->iobase + TXCON, TXCON_DEFAULT );
|
|
|
|
/* Does not allow to autoneg fullduplex modes */
|
|
media = epic_read_phy_register( sc->iobase, DP83840_ANAR );
|
|
media &= ~(ANAR_100|ANAR_100_FD|ANAR_10_FD|ANAR_10);
|
|
media |= ANAR_100|ANAR_10;
|
|
epic_write_phy_register( sc->iobase, DP83840_ANAR, media );
|
|
|
|
/* Set and restart autoneg */
|
|
epic_write_phy_register( sc->iobase, DP83840_BMCR,
|
|
BMCR_AUTONEGOTIATION | BMCR_RESTART_AUTONEG );
|
|
|
|
#if defined(EPIC_DEBUG)
|
|
printf("tx%d: Autonegotiation\n",sc->unit);
|
|
#endif
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* This function sets EPIC multicast table
|
|
*/
|
|
static void
|
|
epic_set_mc_table(
|
|
epic_softc_t * sc)
|
|
{
|
|
struct ifnet *ifp = &sc->epic_if;
|
|
|
|
if( ifp->if_flags & IFF_MULTICAST ){
|
|
#if defined(EPIC_DEBUG)
|
|
if( !(ifp->if_flags & IFF_ALLMULTI) )
|
|
printf("tx%d: WARNING! only receive all multicasts mode supported\n",sc->unit);
|
|
#endif
|
|
outl( sc->iobase + MC0, 0xFFFF );
|
|
outl( sc->iobase + MC1, 0xFFFF );
|
|
outl( sc->iobase + MC2, 0xFFFF );
|
|
outl( sc->iobase + MC3, 0xFFFF );
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* This function should completely stop rx and tx processes
|
|
*/
|
|
static void
|
|
epic_stop(
|
|
epic_softc_t * sc)
|
|
{
|
|
int iobase = sc->iobase;
|
|
|
|
outl( iobase + INTMASK, 0 );
|
|
outl( iobase + GENCTL, 0 );
|
|
outl( iobase + COMMAND,
|
|
COMMAND_STOP_RX | COMMAND_STOP_TDMA | COMMAND_STOP_TDMA );
|
|
|
|
sc->epic_if.if_timer = 0;
|
|
|
|
}
|
|
|
|
/*
|
|
* Initialize Rx ad Tx rings and give them to EPIC
|
|
*
|
|
* If RX_TO_MBUF option is enabled, mbuf cluster is allocated instead of
|
|
* static buffer.
|
|
*/
|
|
static void
|
|
epic_init_rings(epic_softc_t * sc){
|
|
int i;
|
|
struct mbuf *m;
|
|
|
|
sc->cur_rx = sc->cur_tx = sc->dirty_tx = sc->pending_txs = 0;
|
|
|
|
for (i = 0; i < RX_RING_SIZE; i++) {
|
|
struct epic_rx_buffer *buf = sc->rx_buffer + i;
|
|
|
|
buf->desc.status = 0x0000; /* Owned by Epic chip */
|
|
buf->desc.buflength = 0;
|
|
buf->desc.bufaddr = 0;
|
|
buf->desc.next = vtophys(&(sc->rx_buffer[(i+1)%RX_RING_SIZE].desc) );
|
|
|
|
buf->data = NULL;
|
|
|
|
#if !defined(RX_TO_MBUF)
|
|
if( buf->pool ){
|
|
free( buf->pool, M_DEVBUF );
|
|
buf->pool = buf->data = 0;
|
|
}
|
|
buf->pool = malloc(ETHER_MAX_FRAME_LEN, M_DEVBUF, M_NOWAIT);
|
|
if( buf->pool == NULL ){
|
|
printf("tx%d: malloc failed\n",sc->unit);
|
|
continue;
|
|
}
|
|
buf->data = (caddr_t)buf->pool;
|
|
#else
|
|
if( buf->mbuf ){
|
|
m_freem( buf->mbuf );
|
|
buf->mbuf = NULL;
|
|
}
|
|
MGETHDR(buf->mbuf,M_DONTWAIT,MT_DATA);
|
|
if( NULL == buf->mbuf ) continue;
|
|
MCLGET(buf->mbuf,M_DONTWAIT);
|
|
if( NULL == (buf->mbuf->m_flags & M_EXT) ){
|
|
m_freem( buf->mbuf );
|
|
continue;
|
|
}
|
|
|
|
buf->data = mtod( buf->mbuf, caddr_t );
|
|
#endif
|
|
buf->desc.bufaddr = vtophys( buf->data );
|
|
buf->desc.buflength = ETHER_MAX_FRAME_LEN;
|
|
buf->desc.status = 0x8000;
|
|
|
|
}
|
|
|
|
for (i = 0; i < TX_RING_SIZE; i++) {
|
|
struct epic_tx_buffer *buf = sc->tx_buffer + i;
|
|
|
|
buf->desc.status = 0x0000;
|
|
buf->desc.buflength = 0;
|
|
buf->desc.bufaddr = 0;
|
|
buf->desc.control = 0;
|
|
buf->desc.next = vtophys(&(sc->tx_buffer[(i+1)%TX_RING_SIZE].desc) );
|
|
|
|
if( buf->pool ){
|
|
free( buf->pool, M_DEVBUF );
|
|
buf->pool = buf->data = 0;
|
|
}
|
|
|
|
buf->pool = malloc(ETHER_MAX_FRAME_LEN, M_DEVBUF, M_NOWAIT);
|
|
|
|
if( buf->pool == NULL ){
|
|
printf("tx%d: malloc failed\n",sc->unit);
|
|
continue;
|
|
}
|
|
|
|
buf->data = (caddr_t)buf->pool;
|
|
|
|
buf->desc.bufaddr = vtophys( buf->data );
|
|
buf->desc.buflength = ETHER_MAX_FRAME_LEN;
|
|
}
|
|
|
|
/* Give rings to EPIC */
|
|
outl( sc->iobase + PRCDAR, vtophys(&(sc->rx_buffer[0].desc)) );
|
|
outl( sc->iobase + PTCDAR, vtophys(&(sc->tx_buffer[0].desc)) );
|
|
|
|
}
|
|
|
|
/*
|
|
* EEPROM operation functions
|
|
*/
|
|
static void epic_write_eepromreg(u_int16_t regaddr, u_int8_t val){
|
|
u_int16_t i;
|
|
|
|
outb( regaddr, val );
|
|
|
|
for( i=0;i<0xFF; i++)
|
|
if( !(inb( regaddr ) & 0x20) ) break;
|
|
|
|
return;
|
|
}
|
|
|
|
static u_int8_t epic_read_eepromreg(u_int16_t regaddr){
|
|
return inb( regaddr );
|
|
}
|
|
|
|
static u_int8_t epic_eeprom_clock( u_int16_t ioaddr, u_int8_t val ){
|
|
|
|
epic_write_eepromreg( ioaddr + EECTL, val );
|
|
epic_write_eepromreg( ioaddr + EECTL, (val | 0x4) );
|
|
epic_write_eepromreg( ioaddr + EECTL, val );
|
|
|
|
return epic_read_eepromreg( ioaddr + EECTL );
|
|
}
|
|
|
|
static void epic_output_eepromw(u_int16_t ioaddr, u_int16_t val){
|
|
int i;
|
|
for( i = 0xF; i >= 0; i--){
|
|
if( (val & (1 << i)) ) epic_eeprom_clock( ioaddr, 0x0B );
|
|
else epic_eeprom_clock( ioaddr, 3);
|
|
}
|
|
}
|
|
|
|
static u_int16_t epic_input_eepromw(u_int16_t ioaddr){
|
|
int i;
|
|
int tmp;
|
|
u_int16_t retval = 0;
|
|
|
|
for( i = 0xF; i >= 0; i--) {
|
|
tmp = epic_eeprom_clock( ioaddr, 0x3 );
|
|
if( tmp & 0x10 ){
|
|
retval |= (1 << i);
|
|
}
|
|
}
|
|
return retval;
|
|
}
|
|
|
|
static int epic_read_eeprom(u_int16_t ioaddr, u_int16_t loc){
|
|
int i;
|
|
u_int16_t dataval;
|
|
u_int16_t read_cmd;
|
|
|
|
epic_write_eepromreg(ioaddr + EECTL , 3);
|
|
|
|
if( epic_read_eepromreg(ioaddr + EECTL) & 0x40 )
|
|
read_cmd = ( loc & 0x3F ) | 0x180;
|
|
else
|
|
read_cmd = ( loc & 0xFF ) | 0x600;
|
|
|
|
epic_output_eepromw( ioaddr, read_cmd );
|
|
|
|
dataval = epic_input_eepromw( ioaddr );
|
|
|
|
epic_write_eepromreg( ioaddr + EECTL, 1 );
|
|
|
|
return dataval;
|
|
}
|
|
|
|
static int epic_read_phy_register(u_int16_t iobase, u_int16_t loc){
|
|
int i;
|
|
|
|
outl( iobase + MIICTL, ((loc << 4) | 0x0601) );
|
|
|
|
for( i=0;i<0x1000;i++) if( !(inl( iobase + MIICTL )&1) ) break;
|
|
|
|
return inl( iobase + MIIDATA );
|
|
}
|
|
|
|
static void epic_write_phy_register(u_int16_t iobase, u_int16_t loc,u_int16_t val){
|
|
int i;
|
|
|
|
outl( iobase + MIIDATA, val );
|
|
outl( iobase + MIICTL, ((loc << 4) | 0x0602) );
|
|
|
|
for( i=0;i<0x1000;i++) if( !(inl( iobase + MIICTL )&2) ) break;
|
|
|
|
return;
|
|
}
|
|
|
|
#endif /* NPCI > 0 */
|