2043 lines
50 KiB
C
2043 lines
50 KiB
C
/* $OpenBSD: if_tx.c,v 1.3 1998/10/10 04:30:09 jason Exp $ */
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/* $Id: if_tx.c,v 1.30 1999/08/21 06:24:35 msmith Exp $ */
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/*-
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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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*
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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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* Thanks are going to Steve Bauer and Jason Wright.
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*
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* todo:
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* Deal with bus mastering, i.e. i realy don't know what to do with
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* it and how it can improve performance.
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* Implement FULL IFF_MULTICAST support.
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* Test, test and test again:-(
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*
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*/
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/* We should define compile time options before if_txvar.h included */
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/*#define EPIC_NOIFMEDIA 1*/
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/*#define EPIC_USEIOSPACE 1*/
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#define EARLY_RX 1
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/*#define EPIC_DEBUG 1*/
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#if defined(EPIC_DEBUG)
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#define dprintf(a) printf a
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#else
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#define dprintf(a)
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#endif
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/* Macro to get either mbuf cluster or nothing */
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#define EPIC_MGETCLUSTER(m) \
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{ MGETHDR((m),M_DONTWAIT,MT_DATA); \
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if (m) { \
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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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(m) = NULL; \
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} \
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} \
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}
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#include "bpf.h"
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#include "opt_bdg.h"
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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/malloc.h>
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#include <sys/kernel.h>
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#include <sys/socket.h>
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#include <sys/sockio.h>
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#include <net/if.h>
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#include <net/if_dl.h>
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#include <net/if_types.h>
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#if !defined(SIOCSIFMEDIA) || defined(EPIC_NOIFMEDIA)
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#define EPIC_NOIFMEDIA 1
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#else
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#include <net/if_media.h>
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#endif
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#ifdef INET
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/in_var.h>
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#include <netinet/ip.h>
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#endif
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#ifdef IPX
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#include <netipx/ipx.h>
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#include <netipx/ipx_if.h>
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#endif
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#ifdef NS
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#include <netns/ns.h>
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#include <netns/ns_if.h>
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#endif
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#if NBPF > 0
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#include <net/bpf.h>
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#include <net/bpfdesc.h>
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#endif
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#if defined(__OpenBSD__)
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#include <sys/ioctl.h>
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#include <sys/errno.h>
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#include <sys/device.h>
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#include <netinet/if_ether.h>
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#include <vm/vm.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcidevs.h>
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#include <dev/pci/if_txvar.h>
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#else /* __FreeBSD__ */
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#include <sys/eventhandler.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 <machine/clock.h>
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#include <pci/pcivar.h>
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#include <pci/if_txvar.h>
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#ifdef BRIDGE
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#include <net/bridge.h>
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#endif
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#endif
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#if defined(__FreeBSD__)
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#if __FreeBSD_version >= 300000
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#define EPIC_IFIOCTL_CMD_TYPE u_long
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#else
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#define EPIC_IFIOCTL_CMD_TYPE int
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#endif
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#define EPIC_INTR_RET_TYPE void
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#else /* __OpenBSD__ */
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#define EPIC_IFIOCTL_CMD_TYPE u_long
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#define EPIC_INTR_RET_TYPE int
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#endif
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static int epic_ifioctl __P((register struct ifnet *, EPIC_IFIOCTL_CMD_TYPE, caddr_t));
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static EPIC_INTR_RET_TYPE epic_intr __P((void *));
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static int epic_common_attach __P((epic_softc_t *));
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static void epic_ifstart __P((struct ifnet * const));
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static void epic_ifwatchdog __P((struct ifnet *));
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static int epic_init __P((epic_softc_t *));
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static void epic_stop __P((epic_softc_t *));
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static __inline void epic_rx_done __P((epic_softc_t *));
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static __inline void epic_tx_done __P((epic_softc_t *));
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static int epic_init_rings __P((epic_softc_t *));
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static void epic_free_rings __P((epic_softc_t *));
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static void epic_stop_activity __P((epic_softc_t *));
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static void epic_start_activity __P((epic_softc_t *));
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static void epic_set_rx_mode __P((epic_softc_t *));
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static void epic_set_tx_mode __P((epic_softc_t *));
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static void epic_set_mc_table __P((epic_softc_t *));
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static void epic_set_media_speed __P((epic_softc_t *));
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static void epic_init_phy __P((epic_softc_t *));
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static void epic_dump_state __P((epic_softc_t *));
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static int epic_autoneg __P((epic_softc_t *));
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static int epic_read_eeprom __P((epic_softc_t *,u_int16_t));
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static void epic_output_eepromw __P((epic_softc_t *, u_int16_t));
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static u_int16_t epic_input_eepromw __P((epic_softc_t *));
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static u_int8_t epic_eeprom_clock __P((epic_softc_t *,u_int8_t));
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static void epic_write_eepromreg __P((epic_softc_t *,u_int8_t));
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static u_int8_t epic_read_eepromreg __P((epic_softc_t *));
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static u_int16_t epic_read_phy_register __P((epic_softc_t *, u_int16_t));
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static void epic_write_phy_register __P((epic_softc_t *, u_int16_t, u_int16_t));
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#if !defined(EPIC_NOIFMEDIA)
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static int epic_ifmedia_change __P((struct ifnet *));
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static void epic_ifmedia_status __P((struct ifnet *, struct ifmediareq *));
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#endif
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int epic_mtypes [] = {
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IFM_ETHER | IFM_10_T,
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IFM_ETHER | IFM_10_T | IFM_FDX,
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IFM_ETHER | IFM_100_TX,
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IFM_ETHER | IFM_100_TX | IFM_FDX,
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IFM_ETHER | IFM_10_T | IFM_LOOP,
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IFM_ETHER | IFM_10_T | IFM_FDX | IFM_LOOP,
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IFM_ETHER | IFM_10_T | IFM_LOOP | IFM_FLAG1,
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IFM_ETHER | IFM_100_TX | IFM_LOOP,
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IFM_ETHER | IFM_100_TX | IFM_LOOP | IFM_FLAG1,
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IFM_ETHER | IFM_100_TX | IFM_FDX | IFM_LOOP,
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IFM_ETHER | IFM_AUTO
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};
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#define EPIC_MTYPESNUM (sizeof(epic_mtypes) / sizeof(epic_mtypes[0]))
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/* -------------------------------------------------------------------------
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OS-specific part
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------------------------------------------------------------------------- */
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#if defined(__OpenBSD__)
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/* -----------------------------OpenBSD------------------------------------- */
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static int epic_openbsd_probe __P((struct device *,void *,void *));
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static void epic_openbsd_attach __P((struct device *, struct device *, void *));
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static void epic_shutdown __P((void *));
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struct cfattach tx_ca = {
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sizeof(epic_softc_t), epic_openbsd_probe, epic_openbsd_attach
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};
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struct cfdriver tx_cd = {
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NULL,"tx",DV_IFNET
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};
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/* Synopsis: Check if device id corresponds with SMC83C170 id. */
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static int
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epic_openbsd_probe(
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struct device *parent,
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void *match,
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void *aux )
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{
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struct pci_attach_args *pa = aux;
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if( PCI_VENDOR(pa->pa_id) != SMC_VENDORID )
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return 0;
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if( PCI_PRODUCT(pa->pa_id) == CHIPID_83C170 )
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return 1;
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return 0;
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}
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static void
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epic_openbsd_attach(
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struct device *parent,
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struct device *self,
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void *aux )
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{
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epic_softc_t *sc = (epic_softc_t*)self;
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struct pci_attach_args *pa = aux;
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pci_chipset_tag_t pc = pa->pa_pc;
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pci_intr_handle_t ih;
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const char *intrstr = NULL;
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struct ifnet *ifp;
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bus_space_tag_t iot = pa->pa_iot;
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bus_addr_t iobase;
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bus_size_t iosize;
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int i;
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#if !defined(EPIC_NOIFMEDIA)
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int tmp;
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#endif
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if( pci_io_find(pc, pa->pa_tag, PCI_CBIO, &iobase, &iosize)) {
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printf(": can't find i/o space\n");
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return;
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}
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if( bus_space_map(iot, iobase, iosize, 0, &sc->sc_sh)) {
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printf(": can't map i/o space\n");
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return;
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}
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sc->sc_st = iot;
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ifp = &sc->sc_if;
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bcopy(sc->sc_dev.dv_xname, ifp->if_xname,IFNAMSIZ);
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ifp->if_softc = sc;
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ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
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ifp->if_ioctl = epic_ifioctl;
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ifp->if_start = epic_ifstart;
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ifp->if_watchdog = epic_ifwatchdog;
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/* Do common attach procedure */
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if( epic_common_attach(sc) ) return;
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/* Map interrupt */
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if( pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin,
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pa->pa_intrline, &ih)) {
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printf(": can't map interrupt\n");
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return;
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}
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intrstr = pci_intr_string(pc, ih);
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sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, epic_intr, sc,
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self->dv_xname);
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if( NULL == sc->sc_ih ) {
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printf(": can't establish interrupt");
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if( intrstr )printf(" at %s",intrstr);
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printf("\n");
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return;
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}
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printf(": %s",intrstr);
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/* Display some info */
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printf(" address %s",ether_sprintf(sc->sc_macaddr));
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/* Read current media config and display it too */
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i = PHY_READ_2( sc, DP83840_BMCR );
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#if !defined(EPIC_NOIFMEDIA)
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tmp = IFM_ETHER;
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#endif
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if( i & BMCR_AUTONEGOTIATION ){
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printf(", Auto-Neg ");
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/* To avoid bug in QS6612 read LPAR enstead of BMSR */
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i = PHY_READ_2( sc, DP83840_LPAR );
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if( i & (ANAR_100_TX|ANAR_100_TX_FD) ) printf("100Mbps");
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else printf("10Mbps");
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if( i & (ANAR_10_FD|ANAR_100_TX_FD) ) printf(" FD");
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#if !defined(EPIC_NOIFMEDIA)
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tmp |= IFM_AUTO;
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#endif
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} else {
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#if defined(EPIC_NOIFMEDIA)
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ifp->if_flags |= IFF_LINK0;
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#endif
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if( i & BMCR_100MBPS ) {
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printf(", 100Mbps");
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#if !defined(EPIC_NOIFMEDIA)
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tmp |= IFM_100_TX;
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#else
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ifp->if_flags |= IFF_LINK2;
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#endif
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} else {
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printf(", 10Mbps");
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#if !defined(EPIC_NOIFMEDIA)
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tmp |= IFM_10_T;
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#endif
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}
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if( i & BMCR_FULL_DUPLEX ) {
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printf(" FD");
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#if !defined(EPIC_NOIFMEDIA)
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tmp |= IFM_FDX;
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#else
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ifp->if_flags |= IFF_LINK1;
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#endif
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}
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}
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/* Init ifmedia interface */
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#if !defined(EPIC_NOIFMEDIA)
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ifmedia_init(&sc->ifmedia,0,epic_ifmedia_change,epic_ifmedia_status);
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for (i=0; i<EPIC_MTYPESNUM; i++)
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ifmedia_add(&sc->ifmedia,epic_mtypes[i],0,NULL);
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ifmedia_set(&sc->ifmedia, tmp);
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#endif
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/* Attach os interface and bpf */
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if_attach(ifp);
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ether_ifattach(ifp);
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#if NBPF > 0
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bpfattach(&sc->sc_if.if_bpf, ifp, DLT_EN10MB,
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sizeof(struct ether_header));
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#endif
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/* Set shutdown routine to stop DMA process */
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shutdownhook_establish(epic_shutdown, sc);
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printf("\n");
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}
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/* Simple call epic_stop() */
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static void
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epic_shutdown(
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void *sc)
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{
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epic_stop(sc);
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}
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#else /* __FreeBSD__ */
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/* -----------------------------FreeBSD------------------------------------- */
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static const char* epic_freebsd_probe __P((pcici_t, pcidi_t));
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static void epic_freebsd_attach __P((pcici_t, int));
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static void epic_shutdown __P((void *, int));
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/* Global variables */
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static u_long epic_pci_count;
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static struct pci_device txdevice = {
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"tx",
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epic_freebsd_probe,
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epic_freebsd_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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COMPAT_PCI_DRIVER (tx, txdevice);
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/* Synopsis: Check if device id corresponds with SMC83C170 id. */
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static const char*
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epic_freebsd_probe(
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pcici_t config_id,
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pcidi_t device_id)
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{
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if( PCI_VENDORID(device_id) != SMC_VENDORID )
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return NULL;
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if( PCI_CHIPID(device_id) == CHIPID_83C170 )
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return "SMC 83c170";
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return NULL;
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}
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/*
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* Do FreeBSD-specific attach routine, like map registers, alloc softc
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* structure and etc.
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*/
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static void
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epic_freebsd_attach(
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pcici_t config_id,
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int unit)
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{
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struct ifnet *ifp;
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epic_softc_t *sc;
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#if defined(EPIC_USEIOSPACE)
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u_int32_t iobase;
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#else
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caddr_t pmembase;
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#endif
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int i,s,tmp;
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printf("tx%d",unit);
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/* Allocate memory for softc, hardware descriptors and frag lists */
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sc = (epic_softc_t *) malloc( sizeof(epic_softc_t), M_DEVBUF, M_NOWAIT);
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if (sc == NULL) return;
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/* Preinitialize softc structure */
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bzero(sc, sizeof(epic_softc_t));
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sc->unit = unit;
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/* Fill ifnet structure */
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ifp = &sc->sc_if;
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ifp->if_unit = unit;
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ifp->if_name = "tx";
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ifp->if_softc = sc;
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ifp->if_flags = IFF_BROADCAST|IFF_SIMPLEX|IFF_MULTICAST;
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ifp->if_ioctl = epic_ifioctl;
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ifp->if_start = epic_ifstart;
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ifp->if_watchdog = epic_ifwatchdog;
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ifp->if_init = (if_init_f_t*)epic_init;
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ifp->if_timer = 0;
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ifp->if_output = ether_output;
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ifp->if_snd.ifq_maxlen = TX_RING_SIZE;
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/* Get iobase or membase */
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#if defined(EPIC_USEIOSPACE)
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if (!pci_map_port(config_id, PCI_CBIO,(u_short *) &(sc->iobase))) {
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printf(": cannot map port\n");
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free(sc, M_DEVBUF);
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return;
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}
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#else
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if (!pci_map_mem(config_id, PCI_CBMA,(vm_offset_t *) &(sc->csr),(vm_offset_t *) &pmembase)) {
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printf(": cannot map memory\n");
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free(sc, M_DEVBUF);
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return;
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}
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#endif
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if( epic_common_attach(sc) ) return;
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/* Display ethernet address ,... */
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printf(": address %02x:%02x:%02x:%02x:%02x:%02x,",
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sc->sc_macaddr[0],sc->sc_macaddr[1],sc->sc_macaddr[2],
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sc->sc_macaddr[3],sc->sc_macaddr[4],sc->sc_macaddr[5]);
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/* board type and ... */
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printf(" type ");
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|
for(i=0x2c;i<0x32;i++) {
|
|
tmp = epic_read_eeprom( sc, i );
|
|
if( ' ' == (u_int8_t)tmp ) break;
|
|
printf("%c",(u_int8_t)tmp);
|
|
tmp >>= 8;
|
|
if( ' ' == (u_int8_t)tmp ) break;
|
|
printf("%c",(u_int8_t)tmp);
|
|
}
|
|
|
|
/* Read current media config and display it too */
|
|
i = PHY_READ_2( sc, DP83840_BMCR );
|
|
#if !defined(EPIC_NOIFMEDIA)
|
|
tmp = IFM_ETHER;
|
|
#endif
|
|
if( i & BMCR_AUTONEGOTIATION ){
|
|
printf(", Auto-Neg ");
|
|
|
|
/* To avoid bug in QS6612 read LPAR enstead of BMSR */
|
|
i = PHY_READ_2( sc, DP83840_LPAR );
|
|
if( i & (ANAR_100_TX|ANAR_100_TX_FD) ) printf("100Mbps ");
|
|
else printf("10Mbps ");
|
|
if( i & (ANAR_10_FD|ANAR_100_TX_FD) ) printf("FD");
|
|
#if !defined(EPIC_NOIFMEDIA)
|
|
tmp |= IFM_AUTO;
|
|
#endif
|
|
} else {
|
|
#if defined(EPIC_NOIFMEDIA)
|
|
ifp->if_flags |= IFF_LINK0;
|
|
#endif
|
|
if( i & BMCR_100MBPS ) {
|
|
printf(", 100Mbps ");
|
|
#if !defined(EPIC_NOIFMEDIA)
|
|
tmp |= IFM_100_TX;
|
|
#else
|
|
ifp->if_flags |= IFF_LINK2;
|
|
#endif
|
|
} else {
|
|
printf(", 10Mbps ");
|
|
#if !defined(EPIC_NOIFMEDIA)
|
|
tmp |= IFM_10_T;
|
|
#endif
|
|
}
|
|
if( i & BMCR_FULL_DUPLEX ) {
|
|
printf("FD");
|
|
#if !defined(EPIC_NOIFMEDIA)
|
|
tmp |= IFM_FDX;
|
|
#else
|
|
ifp->if_flags |= IFF_LINK1;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
/* Init ifmedia interface */
|
|
#if !defined(EPIC_NOIFMEDIA)
|
|
ifmedia_init(&sc->ifmedia,0,epic_ifmedia_change,epic_ifmedia_status);
|
|
|
|
for (i=0; i<EPIC_MTYPESNUM; i++)
|
|
ifmedia_add(&sc->ifmedia,epic_mtypes[i],0,NULL);
|
|
|
|
ifmedia_set(&sc->ifmedia, tmp);
|
|
#endif
|
|
|
|
s = splimp();
|
|
|
|
/* Map interrupt */
|
|
if( !pci_map_int(config_id, epic_intr, (void*)sc, &net_imask) ) {
|
|
printf(": couldn't map interrupt\n");
|
|
free(sc, M_DEVBUF);
|
|
return;
|
|
}
|
|
|
|
/* Set shut down routine to stop DMA processes on reboot */
|
|
EVENTHANDLER_REGISTER(shutdown_post_sync, epic_shutdown, sc,
|
|
SHUTDOWN_PRI_DEFAULT);
|
|
|
|
/* Attach to if manager */
|
|
if_attach(ifp);
|
|
ether_ifattach(ifp);
|
|
|
|
#if NBPF > 0
|
|
bpfattach(ifp,DLT_EN10MB, sizeof(struct ether_header));
|
|
#endif
|
|
|
|
splx(s);
|
|
|
|
printf("\n");
|
|
|
|
return;
|
|
}
|
|
|
|
static void
|
|
epic_shutdown(
|
|
void *sc,
|
|
int howto)
|
|
{
|
|
epic_stop(sc);
|
|
}
|
|
|
|
#endif /* __OpenBSD__ */
|
|
|
|
/* ------------------------------------------------------------------------
|
|
OS-independing part
|
|
------------------------------------------------------------------------ */
|
|
|
|
/*
|
|
* This is if_ioctl handler.
|
|
*/
|
|
static int
|
|
epic_ifioctl __P((
|
|
register struct ifnet * ifp,
|
|
EPIC_IFIOCTL_CMD_TYPE command,
|
|
caddr_t data))
|
|
{
|
|
epic_softc_t *sc = ifp->if_softc;
|
|
int x, error = 0;
|
|
|
|
x = splimp();
|
|
|
|
switch (command) {
|
|
#if defined(__FreeBSD__)
|
|
case SIOCSIFADDR:
|
|
case SIOCGIFADDR:
|
|
case SIOCSIFMTU:
|
|
error = ether_ioctl(ifp, command, data);
|
|
break;
|
|
#else /* __OpenBSD__ */
|
|
case SIOCSIFADDR: {
|
|
struct ifaddr *ifa = (struct ifaddr *)data;
|
|
|
|
ifp->if_flags |= IFF_UP;
|
|
switch(ifa->ifa_addr->sa_family) {
|
|
#if INET
|
|
case AF_INET:
|
|
epic_stop(sc);
|
|
epic_init(sc);
|
|
arp_ifinit(&sc->arpcom,ifa);
|
|
break;
|
|
#endif /* __FreeBSD__ */
|
|
#if NS
|
|
case AF_NS: {
|
|
register struct ns_addr * ina = &IA_SNS(ifa)->sns_addr;
|
|
|
|
if( ns_nullhost(*ina) )
|
|
ina->x_host =
|
|
*(union ns_host *) LLADDR(ifp->if_sadl);
|
|
else
|
|
bcopy(ina->x_host.c_host, LLADDR(ifp->if_sadl),
|
|
ifp->if_addrlen);
|
|
|
|
epic_stop(sc);
|
|
epic_init(sc);
|
|
break;
|
|
}
|
|
#endif
|
|
default:
|
|
epic_stop(sc);
|
|
epic_init(sc);
|
|
break;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
case SIOCSIFFLAGS:
|
|
/*
|
|
* If the interface is marked up and stopped, then start it.
|
|
* If it is marked down and running, then stop it.
|
|
*/
|
|
if (ifp->if_flags & IFF_UP) {
|
|
if ((ifp->if_flags & IFF_RUNNING) == 0) {
|
|
epic_init(sc);
|
|
break;
|
|
}
|
|
} else {
|
|
if (ifp->if_flags & IFF_RUNNING) {
|
|
epic_stop(sc);
|
|
break;
|
|
}
|
|
}
|
|
|
|
epic_stop_activity(sc);
|
|
|
|
/* Handle IFF_PROMISC flag */
|
|
epic_set_rx_mode(sc);
|
|
|
|
#if defined(EPIC_NOIFMEDIA)
|
|
/* Handle IFF_LINKx flags */
|
|
epic_set_media_speed(sc);
|
|
#endif
|
|
epic_start_activity(sc);
|
|
break;
|
|
|
|
case SIOCADDMULTI:
|
|
case SIOCDELMULTI:
|
|
/* Update out multicast list */
|
|
#if defined(__FreeBSD__) && __FreeBSD_version >= 300000
|
|
epic_set_mc_table(sc);
|
|
error = 0;
|
|
#else
|
|
error = (command == SIOCADDMULTI) ?
|
|
ether_addmulti((struct ifreq *)data, &sc->arpcom) :
|
|
ether_delmulti((struct ifreq *)data, &sc->arpcom);
|
|
|
|
if (error == ENETRESET) {
|
|
epic_set_mc_table(sc);
|
|
error = 0;
|
|
}
|
|
#endif
|
|
break;
|
|
|
|
#if !defined(EPIC_NOIFMEDIA)
|
|
case SIOCSIFMEDIA:
|
|
case SIOCGIFMEDIA:
|
|
error = ifmedia_ioctl(ifp, (struct ifreq *)data,
|
|
&sc->ifmedia, command);
|
|
break;
|
|
#endif
|
|
|
|
default:
|
|
error = EINVAL;
|
|
}
|
|
splx(x);
|
|
|
|
return error;
|
|
}
|
|
|
|
/*
|
|
* OS-independed part of attach process. allocate memory for descriptors
|
|
* and frag lists, wake up chip, read MAC address and PHY identyfier.
|
|
* Return -1 on failure.
|
|
*/
|
|
static int
|
|
epic_common_attach(
|
|
epic_softc_t *sc)
|
|
{
|
|
int i;
|
|
caddr_t pool;
|
|
|
|
i = sizeof(struct epic_frag_list)*TX_RING_SIZE +
|
|
sizeof(struct epic_rx_desc)*RX_RING_SIZE +
|
|
sizeof(struct epic_tx_desc)*TX_RING_SIZE + PAGE_SIZE,
|
|
sc->pool = (epic_softc_t *) malloc( i, M_DEVBUF, M_NOWAIT);
|
|
|
|
if (sc->pool == NULL) {
|
|
printf(": can't allocate memory for buffers\n");
|
|
return -1;
|
|
}
|
|
bzero(sc->pool, i);
|
|
|
|
/* Align pool on PAGE_SIZE */
|
|
pool = (caddr_t)sc->pool;
|
|
pool = (caddr_t)((u_int32_t)(pool + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1));
|
|
|
|
/* Distribute memory */
|
|
sc->tx_flist = (void *)pool;
|
|
pool += sizeof(struct epic_frag_list)*TX_RING_SIZE;
|
|
sc->rx_desc = (void *)pool;
|
|
pool += sizeof(struct epic_rx_desc)*RX_RING_SIZE;
|
|
sc->tx_desc = (void *)pool;
|
|
|
|
/* Bring the chip out of low-power mode. */
|
|
CSR_WRITE_4( sc, GENCTL, 0x0000 );
|
|
|
|
/* Workaround for Application Note 7-15 */
|
|
for (i=0; i<16; i++) CSR_WRITE_4(sc, TEST1, TEST1_CLOCK_TEST);
|
|
|
|
/* Read mac address from EEPROM */
|
|
for (i = 0; i < ETHER_ADDR_LEN / sizeof(u_int16_t); i++)
|
|
((u_int16_t *)sc->sc_macaddr)[i] = epic_read_eeprom(sc,i);
|
|
|
|
/* Identify PHY */
|
|
sc->phyid = PHY_READ_2(sc, DP83840_PHYIDR1 )<<6;
|
|
sc->phyid|= (PHY_READ_2( sc, DP83840_PHYIDR2 )>>10)&0x3F;
|
|
if( QS6612_OUI != sc->phyid )
|
|
printf(": WARNING! PHY unknown (0x%x)",sc->phyid);
|
|
|
|
sc->tx_threshold = TRANSMIT_THRESHOLD;
|
|
sc->txcon = TXCON_DEFAULT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* This is if_start handler. It takes mbufs from if_snd queue
|
|
* and quque them for transmit, one by one, until TX ring become full
|
|
* or quque become empty.
|
|
*/
|
|
static void
|
|
epic_ifstart(struct ifnet * const ifp){
|
|
epic_softc_t *sc = ifp->if_softc;
|
|
struct epic_tx_buffer *buf;
|
|
struct epic_tx_desc *desc;
|
|
struct epic_frag_list *flist;
|
|
struct mbuf *m0;
|
|
register struct mbuf *m;
|
|
register int i;
|
|
|
|
#if 0
|
|
/* If no link is established, simply free all mbufs in queue */
|
|
PHY_READ_2( sc, DP83840_BMSR );
|
|
if( !(BMSR_LINK_STATUS & PHY_READ_2( sc, DP83840_BMSR )) ){
|
|
IF_DEQUEUE( &ifp->if_snd, m0 );
|
|
while( m0 ) {
|
|
m_freem(m0);
|
|
IF_DEQUEUE( &ifp->if_snd, m0 );
|
|
}
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
/* Link is OK, queue packets to NIC */
|
|
while( sc->pending_txs < TX_RING_SIZE ){
|
|
buf = sc->tx_buffer + sc->cur_tx;
|
|
desc = sc->tx_desc + sc->cur_tx;
|
|
flist = sc->tx_flist + sc->cur_tx;
|
|
|
|
/* Get next packet to send */
|
|
IF_DEQUEUE( &ifp->if_snd, m0 );
|
|
|
|
/* If nothing to send, return */
|
|
if( NULL == m0 ) return;
|
|
|
|
/* If descriptor is busy, set IFF_OACTIVE and exit */
|
|
if( desc->status & 0x8000 ) {
|
|
dprintf((EPIC_FORMAT ": desc is busy in ifstart, up and down interface please\n",EPIC_ARGS(sc)));
|
|
break;
|
|
}
|
|
|
|
if( buf->mbuf ) {
|
|
dprintf((EPIC_FORMAT ": mbuf not freed in ifstart, up and down interface please\n",EPIC_ARGS(sc)));
|
|
break;
|
|
}
|
|
|
|
/* Fill fragments list */
|
|
for( m=m0, i=0;
|
|
(NULL != m) && (i < EPIC_MAX_FRAGS);
|
|
m = m->m_next, i++ ) {
|
|
flist->frag[i].fraglen = m->m_len;
|
|
flist->frag[i].fragaddr = vtophys( mtod(m, caddr_t) );
|
|
}
|
|
flist->numfrags = i;
|
|
|
|
/* If packet was more than EPIC_MAX_FRAGS parts, */
|
|
/* recopy packet to new allocated mbuf cluster */
|
|
if( NULL != m ){
|
|
EPIC_MGETCLUSTER(m);
|
|
if( NULL == m ){
|
|
printf(EPIC_FORMAT ": cannot allocate mbuf cluster\n",EPIC_ARGS(sc));
|
|
m_freem(m0);
|
|
ifp->if_oerrors++;
|
|
continue;
|
|
}
|
|
|
|
m_copydata( m0, 0, m0->m_pkthdr.len, mtod(m,caddr_t) );
|
|
flist->frag[0].fraglen =
|
|
m->m_pkthdr.len = m->m_len = m0->m_pkthdr.len;
|
|
m->m_pkthdr.rcvif = ifp;
|
|
|
|
flist->numfrags = 1;
|
|
flist->frag[0].fragaddr = vtophys( mtod(m, caddr_t) );
|
|
m_freem(m0);
|
|
m0 = m;
|
|
}
|
|
|
|
buf->mbuf = m0;
|
|
sc->pending_txs++;
|
|
sc->cur_tx = ( sc->cur_tx + 1 ) & TX_RING_MASK;
|
|
desc->control = 0x01;
|
|
desc->txlength =
|
|
max(m0->m_pkthdr.len,ETHER_MIN_LEN-ETHER_CRC_LEN);
|
|
desc->status = 0x8000;
|
|
CSR_WRITE_4( sc, COMMAND, COMMAND_TXQUEUED );
|
|
|
|
/* Set watchdog timer */
|
|
ifp->if_timer = 8;
|
|
|
|
#if NBPF > 0
|
|
if( ifp->if_bpf )
|
|
#if defined(__FreeBSD__)
|
|
bpf_mtap( ifp, m0 );
|
|
#else /* __OpenBSD__ */
|
|
bpf_mtap( ifp->if_bpf, m0 );
|
|
#endif /* __FreeBSD__ */
|
|
#endif
|
|
}
|
|
|
|
ifp->if_flags |= IFF_OACTIVE;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
/*
|
|
*
|
|
* splimp() invoked before epic_intr_normal()
|
|
*/
|
|
static __inline void
|
|
epic_rx_done __P((
|
|
epic_softc_t *sc ))
|
|
{
|
|
u_int16_t len;
|
|
struct epic_rx_buffer *buf;
|
|
struct epic_rx_desc *desc;
|
|
struct mbuf *m;
|
|
struct ether_header *eh;
|
|
|
|
while( !(sc->rx_desc[sc->cur_rx].status & 0x8000) ) {
|
|
buf = sc->rx_buffer + sc->cur_rx;
|
|
desc = sc->rx_desc + sc->cur_rx;
|
|
|
|
/* Switch to next descriptor */
|
|
sc->cur_rx = (sc->cur_rx+1) & RX_RING_MASK;
|
|
|
|
/* Check for errors, this should happend */
|
|
/* only if SAVE_ERRORED_PACKETS is set, */
|
|
/* normaly rx errors generate RXE interrupt */
|
|
if( !(desc->status & 1) ) {
|
|
dprintf((EPIC_FORMAT ": Rx error status: 0x%x\n",EPIC_ARGS(sc),desc->status));
|
|
sc->sc_if.if_ierrors++;
|
|
desc->status = 0x8000;
|
|
continue;
|
|
}
|
|
|
|
/* Save packet length and mbuf contained packet */
|
|
len = desc->rxlength - ETHER_CRC_LEN;
|
|
m = buf->mbuf;
|
|
|
|
/* Try to get mbuf cluster */
|
|
EPIC_MGETCLUSTER( buf->mbuf );
|
|
if( NULL == buf->mbuf ) {
|
|
printf(EPIC_FORMAT ": cannot allocate mbuf cluster\n",EPIC_ARGS(sc));
|
|
buf->mbuf = m;
|
|
desc->status = 0x8000;
|
|
sc->sc_if.if_ierrors++;
|
|
continue;
|
|
}
|
|
|
|
/* Point to new mbuf, and give descriptor to chip */
|
|
desc->bufaddr = vtophys( mtod( buf->mbuf, caddr_t ) );
|
|
desc->status = 0x8000;
|
|
|
|
/* First mbuf in packet holds the ethernet and packet headers */
|
|
eh = mtod( m, struct ether_header * );
|
|
m->m_pkthdr.rcvif = &(sc->sc_if);
|
|
m->m_pkthdr.len = m->m_len = len;
|
|
|
|
#if NBPF > 0
|
|
/* Give mbuf to BPF */
|
|
if( sc->sc_if.if_bpf )
|
|
#if defined(__FreeBSD__)
|
|
bpf_mtap( &sc->sc_if, m );
|
|
#else /* __OpenBSD__ */
|
|
bpf_mtap( sc->sc_if.if_bpf, m );
|
|
#endif /* __FreeBSD__ */
|
|
#endif /* NBPF */
|
|
|
|
#ifdef BRIDGE
|
|
if (do_bridge) {
|
|
struct ifnet *bdg_ifp ;
|
|
bdg_ifp = bridge_in(m);
|
|
if (bdg_ifp == BDG_DROP) {
|
|
if (m)
|
|
m_free(m);
|
|
continue; /* and drop */
|
|
}
|
|
if (bdg_ifp != BDG_LOCAL)
|
|
bdg_forward(&m, bdg_ifp);
|
|
if (bdg_ifp != BDG_LOCAL && bdg_ifp != BDG_BCAST &&
|
|
bdg_ifp != BDG_MCAST) {
|
|
if (m)
|
|
m_free(m);
|
|
continue; /* and drop */
|
|
}
|
|
/* all others accepted locally */
|
|
}
|
|
#endif
|
|
|
|
#if NBPF > 0
|
|
#ifdef BRIDGE
|
|
/*
|
|
* This deserves explanation
|
|
* If the bridge is _on_, then the following check
|
|
* must not be done because occasionally the bridge
|
|
* gets packets that are local but have the ethernet
|
|
* address of one of the other interfaces.
|
|
*
|
|
* But if the bridge is off, then we have to drop
|
|
* stuff that came in just via bpf.
|
|
*/
|
|
if (!do_bridge)
|
|
#endif
|
|
/* Accept only our packets, broadcasts and multicasts */
|
|
if( (eh->ether_dhost[0] & 1) == 0 &&
|
|
bcmp(eh->ether_dhost,sc->sc_macaddr,ETHER_ADDR_LEN)){
|
|
m_freem(m);
|
|
continue;
|
|
}
|
|
#endif
|
|
|
|
/* Second mbuf holds packet ifself */
|
|
m->m_pkthdr.len = m->m_len = len - sizeof(struct ether_header);
|
|
m->m_data += sizeof( struct ether_header );
|
|
|
|
/* Give mbuf to OS */
|
|
ether_input(&sc->sc_if, eh, m);
|
|
|
|
/* Successfuly received frame */
|
|
sc->sc_if.if_ipackets++;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Synopsis: Do last phase of transmission. I.e. if desc is
|
|
* transmitted, decrease pending_txs counter, free mbuf contained
|
|
* packet, switch to next descriptor and repeat until no packets
|
|
* are pending or descriptor is not transmitted yet.
|
|
*/
|
|
static __inline void
|
|
epic_tx_done __P((
|
|
register epic_softc_t *sc ))
|
|
{
|
|
struct epic_tx_buffer *buf;
|
|
struct epic_tx_desc *desc;
|
|
u_int16_t status;
|
|
|
|
while( sc->pending_txs > 0 ){
|
|
buf = sc->tx_buffer + sc->dirty_tx;
|
|
desc = sc->tx_desc + sc->dirty_tx;
|
|
status = desc->status;
|
|
|
|
/* If packet is not transmitted, thou followed */
|
|
/* packets are not transmitted too */
|
|
if( status & 0x8000 ) break;
|
|
|
|
/* Packet is transmitted. Switch to next and */
|
|
/* free mbuf */
|
|
sc->pending_txs--;
|
|
sc->dirty_tx = (sc->dirty_tx + 1) & TX_RING_MASK;
|
|
m_freem( buf->mbuf );
|
|
buf->mbuf = NULL;
|
|
|
|
/* Check for errors and collisions */
|
|
if( status & 0x0001 ) sc->sc_if.if_opackets++;
|
|
else sc->sc_if.if_oerrors++;
|
|
sc->sc_if.if_collisions += (status >> 8) & 0x1F;
|
|
#if defined(EPIC_DEBUG)
|
|
if( (status & 0x1001) == 0x1001 )
|
|
dprintf((EPIC_FORMAT ": frame not transmitted due collisions\n",EPIC_ARGS(sc)));
|
|
#endif
|
|
}
|
|
|
|
if( sc->pending_txs < TX_RING_SIZE )
|
|
sc->sc_if.if_flags &= ~IFF_OACTIVE;
|
|
}
|
|
|
|
/*
|
|
* Interrupt function
|
|
*
|
|
* splimp() assumed to be done
|
|
*/
|
|
static EPIC_INTR_RET_TYPE
|
|
epic_intr (
|
|
void *arg)
|
|
{
|
|
epic_softc_t * sc = (epic_softc_t *) arg;
|
|
int status,i=4;
|
|
#if defined(__OpenBSD__)
|
|
int claimed = 0;
|
|
#endif
|
|
|
|
|
|
while( i-- && ((status = CSR_READ_4(sc, INTSTAT)) & INTSTAT_INT_ACTV) ){
|
|
#if defined(__OpenBSD__)
|
|
claimed = 1;
|
|
#endif
|
|
CSR_WRITE_4( sc, INTSTAT, status );
|
|
|
|
if( status & (INTSTAT_RQE|INTSTAT_RCC|INTSTAT_OVW) ) {
|
|
epic_rx_done( sc );
|
|
if( status & (INTSTAT_RQE|INTSTAT_OVW) ){
|
|
#if defined(EPIC_DEBUG)
|
|
if( status & INTSTAT_OVW )
|
|
printf(EPIC_FORMAT ": RX buffer overflow\n",EPIC_ARGS(sc));
|
|
if( status & INTSTAT_RQE )
|
|
printf(EPIC_FORMAT ": RX FIFO overflow\n",EPIC_ARGS(sc));
|
|
if( sc->sc_if.if_flags & IFF_DEBUG )
|
|
epic_dump_state(sc);
|
|
#endif
|
|
if( !(CSR_READ_4( sc, COMMAND ) & COMMAND_RXQUEUED) )
|
|
CSR_WRITE_4( sc, COMMAND, COMMAND_RXQUEUED );
|
|
sc->sc_if.if_ierrors++;
|
|
}
|
|
}
|
|
|
|
if( status & (INTSTAT_TXC|INTSTAT_TCC|INTSTAT_TQE) ) {
|
|
epic_tx_done( sc );
|
|
if(!(sc->sc_if.if_flags & IFF_OACTIVE) &&
|
|
sc->sc_if.if_snd.ifq_head )
|
|
epic_ifstart( &sc->sc_if );
|
|
}
|
|
|
|
if( (status & INTSTAT_GP2) && (QS6612_OUI == sc->phyid) ) {
|
|
u_int32_t phystatus = PHY_READ_2( sc, QS6612_INTSTAT );
|
|
|
|
if( phystatus & INTSTAT_AN_COMPLETE ) {
|
|
u_int32_t bmcr;
|
|
if( epic_autoneg(sc) == EPIC_FULL_DUPLEX ) {
|
|
dprintf((EPIC_FORMAT ": going fullduplex\n",EPIC_ARGS(sc)));
|
|
bmcr = BMCR_FULL_DUPLEX | PHY_READ_2( sc, DP83840_BMCR );
|
|
sc->txcon |= TXCON_FULL_DUPLEX;
|
|
} else {
|
|
/* Default to half-duplex */
|
|
dprintf((EPIC_FORMAT ": going halfduplex\n",EPIC_ARGS(sc)));
|
|
bmcr = ~BMCR_FULL_DUPLEX & PHY_READ_2( sc, DP83840_BMCR );
|
|
sc->txcon &= ~TXCON_FULL_DUPLEX;
|
|
}
|
|
|
|
/* There is apparently QS6612 chip bug: */
|
|
/* BMCR_FULL_DUPLEX flag is not updated by */
|
|
/* autonegotiation process, so update it by hands */
|
|
/* so we can rely on it in epic_ifmedia_status() */
|
|
PHY_WRITE_2( sc, DP83840_BMCR, bmcr );
|
|
|
|
epic_stop_activity(sc);
|
|
epic_set_tx_mode(sc);
|
|
epic_start_activity(sc);
|
|
}
|
|
|
|
PHY_READ_2(sc, DP83840_BMSR);
|
|
if( !(PHY_READ_2(sc, DP83840_BMSR) & BMSR_LINK_STATUS) ) {
|
|
dprintf((EPIC_FORMAT ": WARNING! link down\n",EPIC_ARGS(sc)));
|
|
sc->flags |= EPIC_LINK_DOWN;
|
|
} else {
|
|
dprintf((EPIC_FORMAT ": link up\n",EPIC_ARGS(sc)));
|
|
sc->flags &= ~EPIC_LINK_DOWN;
|
|
}
|
|
|
|
/* We should clear GP2 int again after we clear it on PHY */
|
|
CSR_WRITE_4( sc, INTSTAT, INTSTAT_GP2 );
|
|
}
|
|
|
|
/* Check for errors */
|
|
if( status & (INTSTAT_FATAL|INTSTAT_PMA|INTSTAT_PTA|
|
|
INTSTAT_APE|INTSTAT_DPE|INTSTAT_TXU|INTSTAT_RXE) ){
|
|
if( status & (INTSTAT_FATAL|INTSTAT_PMA|INTSTAT_PTA|
|
|
INTSTAT_APE|INTSTAT_DPE) ){
|
|
printf(EPIC_FORMAT ": PCI fatal error occured (%s%s%s%s)\n",
|
|
EPIC_ARGS(sc),
|
|
(status&INTSTAT_PMA)?"PMA":"",
|
|
(status&INTSTAT_PTA)?" PTA":"",
|
|
(status&INTSTAT_APE)?" APE":"",
|
|
(status&INTSTAT_DPE)?" DPE":""
|
|
);
|
|
|
|
epic_dump_state(sc);
|
|
|
|
epic_stop(sc);
|
|
epic_init(sc);
|
|
|
|
break;
|
|
}
|
|
|
|
if (status & INTSTAT_RXE) {
|
|
dprintf((EPIC_FORMAT ": CRC/Alignment error\n",EPIC_ARGS(sc)));
|
|
sc->sc_if.if_ierrors++;
|
|
}
|
|
|
|
/* Tx FIFO underflow. Increase tx threshold, */
|
|
/* if it grown above 2048, disable EARLY_TX */
|
|
if (status & INTSTAT_TXU) {
|
|
if( sc->tx_threshold > 0x800 ) {
|
|
sc->txcon &= ~TXCON_EARLY_TRANSMIT_ENABLE;
|
|
dprintf((EPIC_FORMAT ": TX underrun error, early tx disabled\n",EPIC_ARGS(sc)));
|
|
} else {
|
|
sc->tx_threshold += 0x40;
|
|
dprintf((EPIC_FORMAT ": TX underrun error, tx threshold increased to %d\n",EPIC_ARGS(sc),sc->tx_threshold));
|
|
}
|
|
|
|
CSR_WRITE_4(sc, COMMAND, COMMAND_TXUGO | COMMAND_TXQUEUED);
|
|
epic_stop_activity(sc);
|
|
epic_set_tx_mode(sc);
|
|
epic_start_activity(sc);
|
|
sc->sc_if.if_oerrors++;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* If no packets are pending, thus no timeouts */
|
|
if( sc->pending_txs == 0 ) sc->sc_if.if_timer = 0;
|
|
|
|
#if defined(__OpenBSD__)
|
|
return claimed;
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Synopsis: This one is called if packets wasn't transmitted
|
|
* during timeout. Try to deallocate transmitted packets, and
|
|
* if success continue to work.
|
|
*
|
|
* splimp() invoked here
|
|
*/
|
|
static void
|
|
epic_ifwatchdog __P((
|
|
struct ifnet *ifp))
|
|
{
|
|
epic_softc_t *sc = ifp->if_softc;
|
|
int x;
|
|
|
|
x = splimp();
|
|
|
|
printf(EPIC_FORMAT ": device timeout %d packets, ",
|
|
EPIC_ARGS(sc),sc->pending_txs);
|
|
|
|
/* Try to finish queued packets */
|
|
epic_tx_done( sc );
|
|
|
|
/* If not successful */
|
|
if( sc->pending_txs > 0 ){
|
|
#if defined(EPIC_DEBUG)
|
|
if( ifp->if_flags & IFF_DEBUG ) epic_dump_state(sc);
|
|
#endif
|
|
ifp->if_oerrors+=sc->pending_txs;
|
|
|
|
/* Reinitialize board */
|
|
printf("reinitialization\n");
|
|
epic_stop(sc);
|
|
epic_init(sc);
|
|
|
|
} else
|
|
printf("seems we can continue normaly\n");
|
|
|
|
/* Start output */
|
|
if( ifp->if_snd.ifq_head ) epic_ifstart( ifp );
|
|
|
|
splx(x);
|
|
}
|
|
|
|
#if defined(SIOCSIFMEDIA) && !defined(EPIC_NOIFMEDIA)
|
|
static int
|
|
epic_ifmedia_change __P((
|
|
struct ifnet * ifp))
|
|
{
|
|
epic_softc_t *sc = (epic_softc_t *)(ifp->if_softc);
|
|
|
|
if (IFM_TYPE(sc->ifmedia.ifm_media) != IFM_ETHER)
|
|
return (EINVAL);
|
|
|
|
if (!(ifp->if_flags & IFF_UP))
|
|
return (0);
|
|
|
|
epic_stop_activity(sc);
|
|
epic_set_media_speed(sc);
|
|
epic_start_activity(sc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
epic_ifmedia_status __P((
|
|
struct ifnet * ifp,
|
|
struct ifmediareq *ifmr))
|
|
{
|
|
epic_softc_t *sc = ifp->if_softc;
|
|
u_int32_t bmcr;
|
|
u_int32_t bmsr;
|
|
|
|
if (!(ifp->if_flags & IFF_UP))
|
|
return;
|
|
|
|
bmcr = PHY_READ_2( sc, DP83840_BMCR );
|
|
|
|
PHY_READ_2( sc, DP83840_BMSR );
|
|
bmsr = PHY_READ_2( sc, DP83840_BMSR );
|
|
|
|
ifmr->ifm_active = IFM_ETHER;
|
|
ifmr->ifm_status = IFM_AVALID;
|
|
|
|
if( !(bmsr & BMSR_LINK_STATUS) ) {
|
|
ifmr->ifm_active |=
|
|
(bmcr&BMCR_AUTONEGOTIATION)?IFM_AUTO:IFM_NONE;
|
|
return;
|
|
}
|
|
|
|
ifmr->ifm_status |= IFM_ACTIVE;
|
|
ifmr->ifm_active |= (bmcr & BMCR_100MBPS) ? IFM_100_TX : IFM_10_T;
|
|
ifmr->ifm_active |= (bmcr & BMCR_FULL_DUPLEX) ? IFM_FDX : 0;
|
|
if ((sc->txcon & TXCON_LOOPBACK_MODE) == TXCON_LOOPBACK_MODE_INT)
|
|
ifmr->ifm_active |= (IFM_LOOP | IFM_FLAG1);
|
|
else if ((sc->txcon & TXCON_LOOPBACK_MODE) == TXCON_LOOPBACK_MODE_PHY)
|
|
ifmr->ifm_active |= IFM_LOOP;
|
|
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Reset chip, PHY, allocate rings
|
|
*
|
|
* splimp() invoked here
|
|
*/
|
|
static int
|
|
epic_init __P((
|
|
epic_softc_t * sc))
|
|
{
|
|
struct ifnet *ifp = &sc->sc_if;
|
|
int s,i;
|
|
|
|
s = splimp();
|
|
|
|
/* Soft reset the chip (we have to power up card before) */
|
|
CSR_WRITE_4( sc, GENCTL, 0 );
|
|
CSR_WRITE_4( sc, GENCTL, GENCTL_SOFT_RESET );
|
|
|
|
/*
|
|
* Reset takes 15 pci ticks which depends on PCI bus speed.
|
|
* Assuming it >= 33000000 hz, we have wait at least 495e-6 sec.
|
|
*/
|
|
DELAY(500);
|
|
|
|
/* Wake up */
|
|
CSR_WRITE_4( sc, GENCTL, 0 );
|
|
|
|
/* Workaround for Application Note 7-15 */
|
|
for (i=0; i<16; i++) CSR_WRITE_4(sc, TEST1, TEST1_CLOCK_TEST);
|
|
|
|
/* Initialize rings */
|
|
if( epic_init_rings( sc ) ) {
|
|
printf(EPIC_FORMAT ": failed to init rings\n",EPIC_ARGS(sc));
|
|
splx(s);
|
|
return -1;
|
|
}
|
|
|
|
/* Give rings to EPIC */
|
|
CSR_WRITE_4( sc, PRCDAR, vtophys( sc->rx_desc ) );
|
|
CSR_WRITE_4( sc, PTCDAR, vtophys( sc->tx_desc ) );
|
|
|
|
/* Put node address to EPIC */
|
|
CSR_WRITE_4( sc, LAN0, ((u_int16_t *)sc->sc_macaddr)[0] );
|
|
CSR_WRITE_4( sc, LAN1, ((u_int16_t *)sc->sc_macaddr)[1] );
|
|
CSR_WRITE_4( sc, LAN2, ((u_int16_t *)sc->sc_macaddr)[2] );
|
|
|
|
/* Set tx mode, includeing transmit threshold */
|
|
epic_set_tx_mode(sc);
|
|
|
|
/* Compute and set RXCON. */
|
|
epic_set_rx_mode( sc );
|
|
|
|
/* Set multicast table */
|
|
epic_set_mc_table( sc );
|
|
|
|
/* Enable interrupts by setting the interrupt mask. */
|
|
CSR_WRITE_4( sc, INTMASK,
|
|
INTSTAT_RCC | INTSTAT_RQE | INTSTAT_OVW | INTSTAT_RXE |
|
|
INTSTAT_TXC | INTSTAT_TCC | INTSTAT_TQE | INTSTAT_TXU |
|
|
INTSTAT_FATAL |
|
|
((QS6612_OUI == sc->phyid)?INTSTAT_GP2:0) );
|
|
|
|
/* Enable interrupts, set for PCI read multiple and etc */
|
|
CSR_WRITE_4( sc, GENCTL,
|
|
GENCTL_ENABLE_INTERRUPT | GENCTL_MEMORY_READ_MULTIPLE |
|
|
GENCTL_ONECOPY | GENCTL_RECEIVE_FIFO_THRESHOLD64 );
|
|
|
|
/* Set media speed mode */
|
|
epic_set_media_speed( sc );
|
|
|
|
/* 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;
|
|
|
|
/* Start Rx process */
|
|
epic_start_activity(sc);
|
|
|
|
splx(s);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Synopsis: calculate and set Rx mode. Chip must be in idle state to
|
|
* access RXCON.
|
|
*/
|
|
static void
|
|
epic_set_rx_mode(
|
|
epic_softc_t * sc)
|
|
{
|
|
u_int32_t flags = sc->sc_if.if_flags;
|
|
u_int32_t rxcon = RXCON_DEFAULT | RXCON_RECEIVE_MULTICAST_FRAMES | RXCON_RECEIVE_BROADCAST_FRAMES;
|
|
|
|
rxcon |= (flags & IFF_PROMISC)?RXCON_PROMISCUOUS_MODE:0;
|
|
|
|
CSR_WRITE_4( sc, RXCON, rxcon );
|
|
|
|
return;
|
|
}
|
|
|
|
#if 0
|
|
void
|
|
dump_phy_regs(epic_softc_t *sc)
|
|
{
|
|
|
|
printf("BMCR: 0x%04x\n", PHY_READ_2(sc, DP83840_BMCR));
|
|
printf("BMSR: 0x%04x\n", PHY_READ_2(sc, DP83840_BMSR));
|
|
printf("ANAR: 0x%04x\n", PHY_READ_2(sc, DP83840_ANAR));
|
|
printf("LPAR: 0x%04x\n", PHY_READ_2(sc, DP83840_LPAR));
|
|
printf("ANER: 0x%04x\n", PHY_READ_2(sc, DP83840_ANER));
|
|
printf("MCTL: 0x%04x\n", PHY_READ_2(sc, QS6612_MCTL));
|
|
printf("INTSTAT: 0x%04x\n", PHY_READ_2(sc, QS6612_INTSTAT));
|
|
printf("INTMASK: 0x%04x\n", PHY_READ_2(sc, QS6612_INTMASK));
|
|
printf("BPCR: 0x%04x\n", PHY_READ_2(sc, QS6612_BPCR));
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Synopsis: Reset PHY and do PHY-special initialization:
|
|
*/
|
|
static void
|
|
epic_init_phy __P((
|
|
epic_softc_t * sc))
|
|
{
|
|
u_int32_t i;
|
|
|
|
/* Reset PHY (We have to take the delay from manual XXX) */
|
|
PHY_WRITE_2(sc, DP83840_BMCR, BMCR_RESET);
|
|
DELAY(10);
|
|
for(i=0;i<0x1000;i++) {
|
|
if( !(PHY_READ_2(sc, DP83840_BMCR) & BMCR_RESET) )
|
|
break;
|
|
DELAY(1);
|
|
}
|
|
|
|
if( PHY_READ_2(sc, DP83840_BMCR) & BMCR_RESET )
|
|
printf(EPIC_FORMAT ": WARNING! cant reset PHY\n",EPIC_ARGS(sc));
|
|
|
|
PHY_WRITE_2(sc, DP83840_BMCR, 0 );
|
|
PHY_WRITE_2(sc, DP83840_BMCR, BMCR_LOOPBACK | BMCR_ISOLATE );
|
|
|
|
switch( sc->phyid ){
|
|
case QS6612_OUI: {
|
|
/* Init QS6612 and EPIC to generate interrupt */
|
|
CSR_WRITE_4(sc, NVCTL, NVCTL_GP1_OUTPUT_ENABLE | NVCTL_GP1);
|
|
|
|
/* Mask interrupts sources */
|
|
PHY_WRITE_2(sc, QS6612_INTMASK,
|
|
PHY_READ_2(sc, QS6612_INTSTAT) |
|
|
INTMASK_THUNDERLAN | INTSTAT_AN_COMPLETE |
|
|
INTSTAT_LINK_STATUS );
|
|
|
|
/* Enable QS6612 extended cable length capabilites */
|
|
/* PHY_WRITE_2(sc, QS6612_MCTL, */
|
|
/* PHY_READ_2(sc, QS6612_MCTL) | MCTL_BTEXT); */
|
|
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Synopsis: Set PHY to media type specified by IFF_LINK* flags or
|
|
* ifmedia structure. Chip must be in idle state to access TXCON.
|
|
*/
|
|
static void
|
|
epic_set_media_speed __P((
|
|
epic_softc_t * sc))
|
|
{
|
|
u_int16_t media;
|
|
#if !defined(EPIC_NOIFMEDIA)
|
|
u_int32_t tgtmedia = sc->ifmedia.ifm_cur->ifm_media;
|
|
#endif
|
|
|
|
epic_init_phy(sc);
|
|
|
|
#if !defined(EPIC_NOIFMEDIA)
|
|
if( IFM_SUBTYPE(tgtmedia) != IFM_AUTO ){
|
|
/* Clean previous values */
|
|
sc->txcon &= ~(TXCON_LOOPBACK_MODE | TXCON_FULL_DUPLEX);
|
|
media = 0;
|
|
|
|
/* Set mode */
|
|
media |= (IFM_SUBTYPE(tgtmedia)==IFM_100_TX) ? BMCR_100MBPS : 0;
|
|
if (tgtmedia & IFM_FDX) {
|
|
media |= BMCR_FULL_DUPLEX;
|
|
sc->txcon |= TXCON_FULL_DUPLEX;
|
|
}
|
|
if (tgtmedia & IFM_LOOP) {
|
|
if (tgtmedia & IFM_FLAG1)
|
|
sc->txcon |= TXCON_LOOPBACK_MODE_INT;
|
|
else {
|
|
media |= BMCR_LOOPBACK | BMCR_ISOLATE;
|
|
sc->txcon |= TXCON_LOOPBACK_MODE_PHY;
|
|
}
|
|
}
|
|
|
|
sc->sc_if.if_baudrate =
|
|
(IFM_SUBTYPE(tgtmedia)==IFM_100_TX)?100000000:10000000;
|
|
|
|
PHY_WRITE_2( sc, DP83840_BMCR, media );
|
|
}
|
|
#else /* EPIC_NOIFMEDIA */
|
|
struct ifnet *ifp = &sc->sc_if;
|
|
|
|
if( ifp->if_flags & IFF_LINK0 ) {
|
|
/* Set mode */
|
|
media = 0;
|
|
media|= (ifp->if_flags & IFF_LINK2) ? BMCR_100MBPS : 0;
|
|
media|= (ifp->if_flags & IFF_LINK1) ? BMCR_FULL_DUPLEX : 0;
|
|
|
|
sc->sc_if.if_baudrate =
|
|
(ifp->if_flags & IFF_LINK2)?100000000:10000000;
|
|
|
|
PHY_WRITE_2( sc, DP83840_BMCR, media );
|
|
|
|
if( ifp->if_flags & IFF_LINK2 ) sc->txcon |= TXCON_FULL_DUPLEX;
|
|
else sc->txcon &= ~TXCON_FULL_DUPLEX;
|
|
|
|
CSR_WRITE_4( sc, TXCON, sc->txcon );
|
|
}
|
|
#endif /* !EPIC_NOIFMEDIA */
|
|
else {
|
|
sc->sc_if.if_baudrate = 100000000;
|
|
|
|
sc->txcon &= ~TXCON_FULL_DUPLEX;
|
|
CSR_WRITE_4(sc, TXCON, sc->txcon);
|
|
|
|
/* Set and restart autoneg */
|
|
PHY_WRITE_2(sc, DP83840_BMCR, BMCR_AUTONEGOTIATION );
|
|
PHY_WRITE_2(sc, DP83840_BMCR,
|
|
BMCR_AUTONEGOTIATION | BMCR_RESTART_AUTONEG);
|
|
|
|
/* If it is not QS6612 PHY, try to get result of autoneg. */
|
|
if( QS6612_OUI != sc->phyid ) {
|
|
/* Wait 3 seconds for the autoneg to finish
|
|
* This is the recommended time from the DP83840A data
|
|
* sheet Section 7.1
|
|
*/
|
|
DELAY(3000000);
|
|
|
|
if( epic_autoneg(sc) == EPIC_FULL_DUPLEX ) {
|
|
sc->txcon |= TXCON_FULL_DUPLEX;
|
|
CSR_WRITE_4(sc, TXCON, sc->txcon);
|
|
}
|
|
}
|
|
/* Else it will be done when GP2 int occured */
|
|
}
|
|
|
|
epic_set_tx_mode(sc);
|
|
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* This functions get results of the autoneg processes of the phy
|
|
* It implements the workaround that is described in section 7.2 & 7.3 of the
|
|
* DP83840A data sheet
|
|
* http://www.national.com/ds/DP/DP83840A.pdf
|
|
*/
|
|
static int
|
|
epic_autoneg(
|
|
epic_softc_t * sc)
|
|
{
|
|
u_int16_t media;
|
|
u_int16_t i;
|
|
|
|
/* BMSR must be read twice to update the link status bit
|
|
* since that bit is a latch bit
|
|
*/
|
|
PHY_READ_2( sc, DP83840_BMSR);
|
|
i = PHY_READ_2( sc, DP83840_BMSR);
|
|
|
|
if ((i & BMSR_LINK_STATUS) && (i & BMSR_AUTONEG_COMPLETE)){
|
|
i = PHY_READ_2( sc, DP83840_LPAR );
|
|
|
|
if ( i & (ANAR_100_TX_FD|ANAR_10_FD) )
|
|
return EPIC_FULL_DUPLEX;
|
|
else
|
|
return EPIC_HALF_DUPLEX;
|
|
} else {
|
|
/*Auto-negotiation or link status is not 1
|
|
Thus the auto-negotiation failed and one
|
|
must take other means to fix it.
|
|
*/
|
|
|
|
/* ANER must be read twice to get the correct reading for the
|
|
* Multiple link fault bit -- it is a latched bit
|
|
*/
|
|
PHY_READ_2( sc, DP83840_ANER );
|
|
i = PHY_READ_2( sc, DP83840_ANER );
|
|
|
|
if ( i & ANER_MULTIPLE_LINK_FAULT ) {
|
|
/* it can be forced to 100Mb/s Half-Duplex */
|
|
media = PHY_READ_2( sc, DP83840_BMCR );
|
|
media &= ~(BMCR_AUTONEGOTIATION | BMCR_FULL_DUPLEX);
|
|
media |= BMCR_100MBPS;
|
|
PHY_WRITE_2( sc, DP83840_BMCR, media );
|
|
|
|
/* read BMSR again to determine link status */
|
|
PHY_READ_2( sc, DP83840_BMSR );
|
|
i=PHY_READ_2( sc, DP83840_BMSR );
|
|
|
|
if (i & BMSR_LINK_STATUS){
|
|
/* port is linked to the non Auto-Negotiation
|
|
* 100Mbs partner.
|
|
*/
|
|
return EPIC_HALF_DUPLEX;
|
|
}
|
|
else {
|
|
media = PHY_READ_2( sc, DP83840_BMCR);
|
|
media &= ~(BMCR_AUTONEGOTIATION | BMCR_FULL_DUPLEX | BMCR_100MBPS);
|
|
PHY_WRITE_2( sc, DP83840_BMCR, media);
|
|
PHY_READ_2( sc, DP83840_BMSR );
|
|
i = PHY_READ_2( sc, DP83840_BMSR );
|
|
|
|
if (i & BMSR_LINK_STATUS) {
|
|
/*port is linked to the non
|
|
* Auto-Negotiation10Mbs partner
|
|
*/
|
|
return EPIC_HALF_DUPLEX;
|
|
}
|
|
}
|
|
}
|
|
/* If we get here we are most likely not connected
|
|
* so lets default it to half duplex
|
|
*/
|
|
return EPIC_HALF_DUPLEX;
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
*/
|
|
static void
|
|
epic_set_tx_mode (
|
|
epic_softc_t *sc )
|
|
{
|
|
|
|
if( sc->txcon & TXCON_EARLY_TRANSMIT_ENABLE )
|
|
CSR_WRITE_4( sc, ETXTHR, sc->tx_threshold );
|
|
|
|
CSR_WRITE_4( sc, TXCON, sc->txcon );
|
|
}
|
|
|
|
/*
|
|
* Synopsis: This function should update multicast hash table.
|
|
* I suppose there is a bug in chips MC filter so this function
|
|
* only set it to receive all MC packets. The second problem is
|
|
* that we should wait for TX and RX processes to stop before
|
|
* reprogramming MC filter. The epic_stop_activity() and
|
|
* epic_start_activity() should help to do this.
|
|
*/
|
|
static void
|
|
epic_set_mc_table (
|
|
epic_softc_t * sc)
|
|
{
|
|
struct ifnet *ifp = &sc->sc_if;
|
|
|
|
if( ifp->if_flags & IFF_MULTICAST ){
|
|
CSR_WRITE_4( sc, MC0, 0xFFFF );
|
|
CSR_WRITE_4( sc, MC1, 0xFFFF );
|
|
CSR_WRITE_4( sc, MC2, 0xFFFF );
|
|
CSR_WRITE_4( sc, MC3, 0xFFFF );
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
/*
|
|
* Synopsis: Start receive process and transmit one, if they need.
|
|
*/
|
|
static void
|
|
epic_start_activity __P((
|
|
epic_softc_t * sc))
|
|
{
|
|
/* Start rx process */
|
|
CSR_WRITE_4(sc, COMMAND,
|
|
COMMAND_RXQUEUED | COMMAND_START_RX |
|
|
(sc->pending_txs?COMMAND_TXQUEUED:0));
|
|
dprintf((EPIC_FORMAT ": activity started\n",EPIC_ARGS(sc)));
|
|
}
|
|
|
|
/*
|
|
* Synopsis: Completely stop Rx and Tx processes. If TQE is set additional
|
|
* packet needs to be queued to stop Tx DMA.
|
|
*/
|
|
static void
|
|
epic_stop_activity __P((
|
|
epic_softc_t * sc))
|
|
{
|
|
int i;
|
|
|
|
/* Stop Tx and Rx DMA */
|
|
CSR_WRITE_4(sc,COMMAND,COMMAND_STOP_RX|COMMAND_STOP_RDMA|COMMAND_STOP_TDMA);
|
|
|
|
/* Wait Rx and Tx DMA to stop (why 1 ms ??? XXX) */
|
|
dprintf((EPIC_FORMAT ": waiting Rx and Tx DMA to stop\n",EPIC_ARGS(sc)));
|
|
for(i=0;i<0x1000;i++) {
|
|
if((CSR_READ_4(sc,INTSTAT) & (INTSTAT_TXIDLE | INTSTAT_RXIDLE)) ==
|
|
(INTSTAT_TXIDLE | INTSTAT_RXIDLE) )
|
|
break;
|
|
DELAY(1);
|
|
}
|
|
|
|
if( !(CSR_READ_4(sc,INTSTAT)&INTSTAT_RXIDLE) )
|
|
printf(EPIC_FORMAT ": can't stop Rx DMA\n",EPIC_ARGS(sc));
|
|
|
|
if( !(CSR_READ_4(sc,INTSTAT)&INTSTAT_TXIDLE) )
|
|
printf(EPIC_FORMAT ": can't stop Tx DMA\n",EPIC_ARGS(sc));
|
|
|
|
/* Catch all finished packets */
|
|
epic_rx_done(sc);
|
|
epic_tx_done(sc);
|
|
|
|
/*
|
|
* May need to queue one more packet if TQE, this is rare but existing
|
|
* case.
|
|
*/
|
|
if( (CSR_READ_4( sc, INTSTAT ) & INTSTAT_TQE) &&
|
|
!(CSR_READ_4( sc, INTSTAT ) & INTSTAT_TXIDLE) ) {
|
|
struct epic_tx_desc *desc;
|
|
struct epic_frag_list *flist;
|
|
struct epic_tx_buffer *buf;
|
|
struct mbuf *m0;
|
|
|
|
dprintf((EPIC_FORMAT ": queue last packet\n",EPIC_ARGS(sc)));
|
|
|
|
desc = sc->tx_desc + sc->cur_tx;
|
|
flist = sc->tx_flist + sc->cur_tx;
|
|
buf = sc->tx_buffer + sc->cur_tx;
|
|
|
|
if ((desc->status & 0x8000) || (buf->mbuf != NULL))
|
|
return;
|
|
|
|
MGETHDR(m0,M_DONTWAIT,MT_DATA);
|
|
if (NULL == m0)
|
|
return;
|
|
|
|
/* Prepare mbuf */
|
|
m0->m_len = min(MHLEN,ETHER_MIN_LEN-ETHER_CRC_LEN);
|
|
flist->frag[0].fraglen = m0->m_len;
|
|
m0->m_pkthdr.len = m0->m_len;
|
|
m0->m_pkthdr.rcvif = &sc->sc_if;
|
|
bzero(mtod(m0,caddr_t),m0->m_len);
|
|
|
|
/* Fill fragments list */
|
|
flist->frag[0].fraglen = m0->m_len;
|
|
flist->frag[0].fragaddr = vtophys( mtod(m0, caddr_t) );
|
|
flist->numfrags = 1;
|
|
|
|
/* Fill in descriptor */
|
|
buf->mbuf = m0;
|
|
sc->pending_txs++;
|
|
sc->cur_tx = (sc->cur_tx + 1) & TX_RING_MASK;
|
|
desc->control = 0x01;
|
|
desc->txlength = max(m0->m_pkthdr.len,ETHER_MIN_LEN-ETHER_CRC_LEN);
|
|
desc->status = 0x8000;
|
|
|
|
/* Launch transmition */
|
|
CSR_WRITE_4(sc, COMMAND, COMMAND_STOP_TDMA | COMMAND_TXQUEUED);
|
|
|
|
/* Wait Tx DMA to stop (for how long??? XXX) */
|
|
dprintf((EPIC_FORMAT ": waiting Tx DMA to stop\n",EPIC_ARGS(sc)));
|
|
for(i=0;i<1000;i++) {
|
|
if( (CSR_READ_4(sc,INTSTAT)&INTSTAT_TXIDLE) == INTSTAT_TXIDLE )
|
|
break;
|
|
DELAY(1);
|
|
}
|
|
|
|
if( !(CSR_READ_4(sc,INTSTAT)&INTSTAT_TXIDLE) )
|
|
printf(EPIC_FORMAT ": can't stop TX DMA\n",EPIC_ARGS(sc));
|
|
else
|
|
epic_tx_done(sc);
|
|
}
|
|
|
|
dprintf((EPIC_FORMAT ": activity stoped\n",EPIC_ARGS(sc)));
|
|
}
|
|
|
|
/*
|
|
* Synopsis: Shut down board and deallocates rings.
|
|
*
|
|
* splimp() invoked here
|
|
*/
|
|
static void
|
|
epic_stop __P((
|
|
epic_softc_t * sc))
|
|
{
|
|
int s;
|
|
|
|
s = splimp();
|
|
|
|
sc->sc_if.if_timer = 0;
|
|
|
|
/* Disable interrupts */
|
|
CSR_WRITE_4( sc, INTMASK, 0 );
|
|
CSR_WRITE_4( sc, GENCTL, 0 );
|
|
|
|
/* Try to stop Rx and TX processes */
|
|
epic_stop_activity(sc);
|
|
|
|
/* Reset chip */
|
|
CSR_WRITE_4( sc, GENCTL, GENCTL_SOFT_RESET );
|
|
DELAY(1000);
|
|
|
|
/* Make chip go to bed */
|
|
CSR_WRITE_4(sc, GENCTL, GENCTL_POWER_DOWN);
|
|
|
|
/* Free memory allocated for rings */
|
|
epic_free_rings(sc);
|
|
|
|
/* Mark as stoped */
|
|
sc->sc_if.if_flags &= ~IFF_RUNNING;
|
|
|
|
splx(s);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Synopsis: This function should free all memory allocated for rings.
|
|
*/
|
|
static void
|
|
epic_free_rings __P((
|
|
epic_softc_t * sc))
|
|
{
|
|
int i;
|
|
|
|
for(i=0;i<RX_RING_SIZE;i++){
|
|
struct epic_rx_buffer *buf = sc->rx_buffer + i;
|
|
struct epic_rx_desc *desc = sc->rx_desc + i;
|
|
|
|
desc->status = 0;
|
|
desc->buflength = 0;
|
|
desc->bufaddr = 0;
|
|
|
|
if( buf->mbuf ) m_freem( buf->mbuf );
|
|
buf->mbuf = NULL;
|
|
}
|
|
|
|
for(i=0;i<TX_RING_SIZE;i++){
|
|
struct epic_tx_buffer *buf = sc->tx_buffer + i;
|
|
struct epic_tx_desc *desc = sc->tx_desc + i;
|
|
|
|
desc->status = 0;
|
|
desc->buflength = 0;
|
|
desc->bufaddr = 0;
|
|
|
|
if( buf->mbuf ) m_freem( buf->mbuf );
|
|
buf->mbuf = NULL;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Synopsis: Allocates mbufs for Rx ring and point Rx descs to them.
|
|
* Point Tx descs to fragment lists. Check that all descs and fraglists
|
|
* are bounded and aligned properly.
|
|
*/
|
|
static int
|
|
epic_init_rings(epic_softc_t * sc){
|
|
int i;
|
|
|
|
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;
|
|
struct epic_rx_desc *desc = sc->rx_desc + i;
|
|
|
|
desc->status = 0; /* Owned by driver */
|
|
desc->next = vtophys( sc->rx_desc + ((i+1) & RX_RING_MASK) );
|
|
|
|
if( (desc->next & 3) || ((desc->next & 0xFFF) + sizeof(struct epic_rx_desc) > 0x1000 ) )
|
|
printf(EPIC_FORMAT ": WARNING! rx_desc is misbound or misaligned\n",EPIC_ARGS(sc));
|
|
|
|
EPIC_MGETCLUSTER( buf->mbuf );
|
|
if( NULL == buf->mbuf ) {
|
|
epic_free_rings(sc);
|
|
return -1;
|
|
}
|
|
desc->bufaddr = vtophys( mtod(buf->mbuf,caddr_t) );
|
|
|
|
desc->buflength = ETHER_MAX_FRAME_LEN;
|
|
desc->status = 0x8000; /* Give to EPIC */
|
|
|
|
}
|
|
|
|
for (i = 0; i < TX_RING_SIZE; i++) {
|
|
struct epic_tx_buffer *buf = sc->tx_buffer + i;
|
|
struct epic_tx_desc *desc = sc->tx_desc + i;
|
|
|
|
desc->status = 0;
|
|
desc->next = vtophys( sc->tx_desc + ( (i+1) & TX_RING_MASK ) );
|
|
|
|
if( (desc->next & 3) || ((desc->next & 0xFFF) + sizeof(struct epic_tx_desc) > 0x1000 ) )
|
|
printf(EPIC_FORMAT ": WARNING! tx_desc is misbound or misaligned\n",EPIC_ARGS(sc));
|
|
|
|
buf->mbuf = NULL;
|
|
desc->bufaddr = vtophys( sc->tx_flist + i );
|
|
if( (desc->bufaddr & 3) || ((desc->bufaddr & 0xFFF) + sizeof(struct epic_frag_list) > 0x1000 ) )
|
|
printf(EPIC_FORMAT ": WARNING! frag_list is misbound or misaligned\n",EPIC_ARGS(sc));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* EEPROM operation functions
|
|
*/
|
|
static void epic_write_eepromreg __P((
|
|
epic_softc_t *sc,
|
|
u_int8_t val))
|
|
{
|
|
u_int16_t i;
|
|
|
|
CSR_WRITE_1( sc, EECTL, val );
|
|
|
|
for (i=0; i<0xFF; i++)
|
|
if( !(CSR_READ_1( sc, EECTL ) & 0x20) ) break;
|
|
|
|
return;
|
|
}
|
|
|
|
static u_int8_t
|
|
epic_read_eepromreg __P((
|
|
epic_softc_t *sc))
|
|
{
|
|
return CSR_READ_1( sc,EECTL );
|
|
}
|
|
|
|
static u_int8_t
|
|
epic_eeprom_clock __P((
|
|
epic_softc_t *sc,
|
|
u_int8_t val))
|
|
{
|
|
epic_write_eepromreg( sc, val );
|
|
epic_write_eepromreg( sc, (val | 0x4) );
|
|
epic_write_eepromreg( sc, val );
|
|
|
|
return epic_read_eepromreg( sc );
|
|
}
|
|
|
|
static void
|
|
epic_output_eepromw __P((
|
|
epic_softc_t * sc,
|
|
u_int16_t val))
|
|
{
|
|
int i;
|
|
for( i = 0xF; i >= 0; i--){
|
|
if( (val & (1 << i)) ) epic_eeprom_clock( sc, 0x0B );
|
|
else epic_eeprom_clock( sc, 3);
|
|
}
|
|
}
|
|
|
|
static u_int16_t
|
|
epic_input_eepromw __P((
|
|
epic_softc_t *sc))
|
|
{
|
|
int i;
|
|
int tmp;
|
|
u_int16_t retval = 0;
|
|
|
|
for( i = 0xF; i >= 0; i--) {
|
|
tmp = epic_eeprom_clock( sc, 0x3 );
|
|
if( tmp & 0x10 ){
|
|
retval |= (1 << i);
|
|
}
|
|
}
|
|
return retval;
|
|
}
|
|
|
|
static int
|
|
epic_read_eeprom __P((
|
|
epic_softc_t *sc,
|
|
u_int16_t loc))
|
|
{
|
|
u_int16_t dataval;
|
|
u_int16_t read_cmd;
|
|
|
|
epic_write_eepromreg( sc , 3);
|
|
|
|
if( epic_read_eepromreg( sc ) & 0x40 )
|
|
read_cmd = ( loc & 0x3F ) | 0x180;
|
|
else
|
|
read_cmd = ( loc & 0xFF ) | 0x600;
|
|
|
|
epic_output_eepromw( sc, read_cmd );
|
|
|
|
dataval = epic_input_eepromw( sc );
|
|
|
|
epic_write_eepromreg( sc, 1 );
|
|
|
|
return dataval;
|
|
}
|
|
|
|
static u_int16_t
|
|
epic_read_phy_register __P((
|
|
epic_softc_t *sc,
|
|
u_int16_t loc))
|
|
{
|
|
int i;
|
|
|
|
CSR_WRITE_4( sc, MIICTL, ((loc << 4) | 0x0601) );
|
|
|
|
for (i=0;i<0x100;i++) {
|
|
if( !(CSR_READ_4( sc, MIICTL )&1) ) break;
|
|
DELAY(1);
|
|
}
|
|
|
|
return CSR_READ_4( sc, MIIDATA );
|
|
}
|
|
|
|
static void
|
|
epic_write_phy_register __P((
|
|
epic_softc_t * sc,
|
|
u_int16_t loc,
|
|
u_int16_t val))
|
|
{
|
|
int i;
|
|
|
|
CSR_WRITE_4( sc, MIIDATA, val );
|
|
CSR_WRITE_4( sc, MIICTL, ((loc << 4) | 0x0602) );
|
|
|
|
for( i=0;i<0x100;i++) {
|
|
if( !(CSR_READ_4( sc, MIICTL )&2) ) break;
|
|
DELAY(1);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
static void
|
|
epic_dump_state __P((
|
|
epic_softc_t * sc))
|
|
{
|
|
int j;
|
|
struct epic_tx_desc *tdesc;
|
|
struct epic_rx_desc *rdesc;
|
|
printf(EPIC_FORMAT ": cur_rx: %d, pending_txs: %d, dirty_tx: %d, cur_tx: %d\n", EPIC_ARGS(sc),sc->cur_rx,sc->pending_txs,sc->dirty_tx,sc->cur_tx);
|
|
printf(EPIC_FORMAT ": COMMAND: 0x%08x, INTSTAT: 0x%08x\n",EPIC_ARGS(sc),CSR_READ_4(sc,COMMAND),CSR_READ_4(sc,INTSTAT));
|
|
printf(EPIC_FORMAT ": PRCDAR: 0x%08x, PTCDAR: 0x%08x\n",EPIC_ARGS(sc),CSR_READ_4(sc,PRCDAR),CSR_READ_4(sc,PTCDAR));
|
|
printf(EPIC_FORMAT ": dumping rx descriptors\n",EPIC_ARGS(sc));
|
|
for(j=0;j<RX_RING_SIZE;j++){
|
|
rdesc = sc->rx_desc + j;
|
|
printf("desc%d: %4d 0x%04x, 0x%08x, %4d, 0x%08x\n",
|
|
j,
|
|
rdesc->rxlength,rdesc->status,
|
|
rdesc->bufaddr,
|
|
rdesc->buflength,
|
|
rdesc->next
|
|
);
|
|
}
|
|
printf(EPIC_FORMAT ": dumping tx descriptors\n",EPIC_ARGS(sc));
|
|
for(j=0;j<TX_RING_SIZE;j++){
|
|
tdesc = sc->tx_desc + j;
|
|
printf(
|
|
"desc%d: %4d 0x%04x, 0x%08lx, 0x%04x %4u, 0x%08lx, mbuf: %p\n",
|
|
j,
|
|
tdesc->txlength,tdesc->status,
|
|
(u_long)tdesc->bufaddr,
|
|
tdesc->control,tdesc->buflength,
|
|
(u_long)tdesc->next,
|
|
(void *)sc->tx_buffer[j].mbuf
|
|
);
|
|
}
|
|
}
|