3882 lines
98 KiB
C
3882 lines
98 KiB
C
/*
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* Copyright (c) 1997, 1998, 1999
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* Bill Paul <wpaul@ee.columbia.edu>. 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Bill Paul.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY Bill Paul 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 Bill Paul OR THE VOICES IN HIS HEAD
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* DEC "tulip" clone ethernet driver. Supports the DEC/Intel 21143
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* series chips and several workalikes including the following:
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*
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* Macronix 98713/98715/98725/98727/98732 PMAC (www.macronix.com)
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* Macronix/Lite-On 82c115 PNIC II (www.macronix.com)
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* Lite-On 82c168/82c169 PNIC (www.litecom.com)
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* ASIX Electronics AX88140A (www.asix.com.tw)
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* ASIX Electronics AX88141 (www.asix.com.tw)
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* ADMtek AL981 (www.admtek.com.tw)
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* ADMtek AN985 (www.admtek.com.tw)
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* Netgear FA511 (www.netgear.com) Appears to be rebadged ADMTek AN985
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* Davicom DM9100, DM9102, DM9102A (www.davicom8.com)
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* Accton EN1217 (www.accton.com)
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* Xircom X3201 (www.xircom.com)
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* Abocom FE2500
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* Conexant LANfinity (www.conexant.com)
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* 3Com OfficeConnect 10/100B 3CSOHO100B (www.3com.com)
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*
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* Datasheets for the 21143 are available at developer.intel.com.
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* Datasheets for the clone parts can be found at their respective sites.
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* (Except for the PNIC; see www.freebsd.org/~wpaul/PNIC/pnic.ps.gz.)
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* The PNIC II is essentially a Macronix 98715A chip; the only difference
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* worth noting is that its multicast hash table is only 128 bits wide
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* instead of 512.
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*
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* Written by Bill Paul <wpaul@ee.columbia.edu>
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* Electrical Engineering Department
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* Columbia University, New York City
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*/
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/*
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* The Intel 21143 is the successor to the DEC 21140. It is basically
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* the same as the 21140 but with a few new features. The 21143 supports
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* three kinds of media attachments:
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*
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* o MII port, for 10Mbps and 100Mbps support and NWAY
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* autonegotiation provided by an external PHY.
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* o SYM port, for symbol mode 100Mbps support.
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* o 10baseT port.
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* o AUI/BNC port.
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*
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* The 100Mbps SYM port and 10baseT port can be used together in
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* combination with the internal NWAY support to create a 10/100
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* autosensing configuration.
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*
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* Note that not all tulip workalikes are handled in this driver: we only
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* deal with those which are relatively well behaved. The Winbond is
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* handled separately due to its different register offsets and the
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* special handling needed for its various bugs. The PNIC is handled
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* here, but I'm not thrilled about it.
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*
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* All of the workalike chips use some form of MII transceiver support
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* with the exception of the Macronix chips, which also have a SYM port.
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* The ASIX AX88140A is also documented to have a SYM port, but all
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* the cards I've seen use an MII transceiver, probably because the
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* AX88140A doesn't support internal NWAY.
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*/
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#include <sys/param.h>
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#include <sys/endian.h>
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#include <sys/systm.h>
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#include <sys/sockio.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/sysctl.h>
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#include <net/if.h>
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#include <net/if_arp.h>
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#include <net/ethernet.h>
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#include <net/if_dl.h>
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#include <net/if_media.h>
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#include <net/if_types.h>
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#include <net/if_vlan_var.h>
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#include <net/bpf.h>
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#include <machine/bus_pio.h>
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#include <machine/bus_memio.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/bus.h>
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#include <sys/rman.h>
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#include <dev/mii/mii.h>
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#include <dev/mii/miivar.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#define DC_USEIOSPACE
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#ifdef __alpha__
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#define SRM_MEDIA
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#endif
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#include <pci/if_dcreg.h>
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#ifdef __sparc64__
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#include <dev/ofw/openfirm.h>
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#include <machine/ofw_machdep.h>
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#endif
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MODULE_DEPEND(dc, pci, 1, 1, 1);
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MODULE_DEPEND(dc, ether, 1, 1, 1);
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MODULE_DEPEND(dc, miibus, 1, 1, 1);
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/* "controller miibus0" required. See GENERIC if you get errors here. */
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#include "miibus_if.h"
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/*
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* Various supported device vendors/types and their names.
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*/
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static struct dc_type dc_devs[] = {
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{ DC_VENDORID_DEC, DC_DEVICEID_21143,
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"Intel 21143 10/100BaseTX" },
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{ DC_VENDORID_DAVICOM, DC_DEVICEID_DM9009,
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"Davicom DM9009 10/100BaseTX" },
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{ DC_VENDORID_DAVICOM, DC_DEVICEID_DM9100,
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"Davicom DM9100 10/100BaseTX" },
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{ DC_VENDORID_DAVICOM, DC_DEVICEID_DM9102,
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"Davicom DM9102 10/100BaseTX" },
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{ DC_VENDORID_DAVICOM, DC_DEVICEID_DM9102,
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"Davicom DM9102A 10/100BaseTX" },
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{ DC_VENDORID_ADMTEK, DC_DEVICEID_AL981,
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"ADMtek AL981 10/100BaseTX" },
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{ DC_VENDORID_ADMTEK, DC_DEVICEID_AN985,
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"ADMtek AN985 10/100BaseTX" },
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{ DC_VENDORID_ADMTEK, DC_DEVICEID_ADM9511,
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"ADMtek ADM9511 10/100BaseTX" },
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{ DC_VENDORID_ADMTEK, DC_DEVICEID_ADM9513,
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"ADMtek ADM9513 10/100BaseTX" },
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{ DC_VENDORID_ADMTEK, DC_DEVICEID_FA511,
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"Netgear FA511 10/100BaseTX" },
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{ DC_VENDORID_ASIX, DC_DEVICEID_AX88140A,
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"ASIX AX88140A 10/100BaseTX" },
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{ DC_VENDORID_ASIX, DC_DEVICEID_AX88140A,
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"ASIX AX88141 10/100BaseTX" },
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{ DC_VENDORID_MX, DC_DEVICEID_98713,
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"Macronix 98713 10/100BaseTX" },
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{ DC_VENDORID_MX, DC_DEVICEID_98713,
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"Macronix 98713A 10/100BaseTX" },
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{ DC_VENDORID_CP, DC_DEVICEID_98713_CP,
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"Compex RL100-TX 10/100BaseTX" },
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{ DC_VENDORID_CP, DC_DEVICEID_98713_CP,
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"Compex RL100-TX 10/100BaseTX" },
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{ DC_VENDORID_MX, DC_DEVICEID_987x5,
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"Macronix 98715/98715A 10/100BaseTX" },
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{ DC_VENDORID_MX, DC_DEVICEID_987x5,
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"Macronix 98715AEC-C 10/100BaseTX" },
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{ DC_VENDORID_MX, DC_DEVICEID_987x5,
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"Macronix 98725 10/100BaseTX" },
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{ DC_VENDORID_MX, DC_DEVICEID_98727,
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"Macronix 98727/98732 10/100BaseTX" },
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{ DC_VENDORID_LO, DC_DEVICEID_82C115,
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"LC82C115 PNIC II 10/100BaseTX" },
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{ DC_VENDORID_LO, DC_DEVICEID_82C168,
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"82c168 PNIC 10/100BaseTX" },
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{ DC_VENDORID_LO, DC_DEVICEID_82C168,
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"82c169 PNIC 10/100BaseTX" },
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{ DC_VENDORID_ACCTON, DC_DEVICEID_EN1217,
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"Accton EN1217 10/100BaseTX" },
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{ DC_VENDORID_ACCTON, DC_DEVICEID_EN2242,
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"Accton EN2242 MiniPCI 10/100BaseTX" },
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{ DC_VENDORID_XIRCOM, DC_DEVICEID_X3201,
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"Xircom X3201 10/100BaseTX" },
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{ DC_VENDORID_ABOCOM, DC_DEVICEID_FE2500,
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"Abocom FE2500 10/100BaseTX" },
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{ DC_VENDORID_ABOCOM, DC_DEVICEID_FE2500MX,
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"Abocom FE2500MX 10/100BaseTX" },
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{ DC_VENDORID_CONEXANT, DC_DEVICEID_RS7112,
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"Conexant LANfinity MiniPCI 10/100BaseTX" },
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{ DC_VENDORID_HAWKING, DC_DEVICEID_HAWKING_PN672TX,
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"Hawking CB102 CardBus 10/100" },
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{ DC_VENDORID_PLANEX, DC_DEVICEID_FNW3602T,
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"PlaneX FNW-3602-T CardBus 10/100" },
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{ DC_VENDORID_3COM, DC_DEVICEID_3CSOHOB,
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"3Com OfficeConnect 10/100B" },
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{ DC_VENDORID_MICROSOFT, DC_DEVICEID_MSMN120,
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"Microsoft MN-120 CardBus 10/100" },
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{ DC_VENDORID_MICROSOFT, DC_DEVICEID_MSMN130,
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"Microsoft MN-130 10/100" },
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{ DC_VENDORID_MICROSOFT, DC_DEVICEID_MSMN130_FAKE,
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"Microsoft MN-130 10/100" },
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{ 0, 0, NULL }
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};
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static int dc_probe (device_t);
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static int dc_attach (device_t);
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static int dc_detach (device_t);
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static int dc_suspend (device_t);
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static int dc_resume (device_t);
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#ifndef BURN_BRIDGES
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static void dc_acpi (device_t);
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#endif
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static struct dc_type *dc_devtype (device_t);
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static int dc_newbuf (struct dc_softc *, int, int);
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static int dc_encap (struct dc_softc *, struct mbuf **);
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static void dc_pnic_rx_bug_war (struct dc_softc *, int);
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static int dc_rx_resync (struct dc_softc *);
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static void dc_rxeof (struct dc_softc *);
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static void dc_txeof (struct dc_softc *);
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static void dc_tick (void *);
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static void dc_tx_underrun (struct dc_softc *);
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static void dc_intr (void *);
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static void dc_start (struct ifnet *);
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static int dc_ioctl (struct ifnet *, u_long, caddr_t);
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static void dc_init (void *);
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static void dc_stop (struct dc_softc *);
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static void dc_watchdog (struct ifnet *);
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static void dc_shutdown (device_t);
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static int dc_ifmedia_upd (struct ifnet *);
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static void dc_ifmedia_sts (struct ifnet *, struct ifmediareq *);
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static void dc_delay (struct dc_softc *);
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static void dc_eeprom_idle (struct dc_softc *);
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static void dc_eeprom_putbyte (struct dc_softc *, int);
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static void dc_eeprom_getword (struct dc_softc *, int, u_int16_t *);
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static void dc_eeprom_getword_pnic
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(struct dc_softc *, int, u_int16_t *);
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static void dc_eeprom_getword_xircom
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(struct dc_softc *, int, u_int16_t *);
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static void dc_eeprom_width (struct dc_softc *);
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static void dc_read_eeprom (struct dc_softc *, caddr_t, int, int, int);
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static void dc_mii_writebit (struct dc_softc *, int);
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static int dc_mii_readbit (struct dc_softc *);
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static void dc_mii_sync (struct dc_softc *);
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static void dc_mii_send (struct dc_softc *, u_int32_t, int);
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static int dc_mii_readreg (struct dc_softc *, struct dc_mii_frame *);
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static int dc_mii_writereg (struct dc_softc *, struct dc_mii_frame *);
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static int dc_miibus_readreg (device_t, int, int);
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static int dc_miibus_writereg (device_t, int, int, int);
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static void dc_miibus_statchg (device_t);
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static void dc_miibus_mediainit (device_t);
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static void dc_setcfg (struct dc_softc *, int);
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static uint32_t dc_mchash_le (struct dc_softc *, const uint8_t *);
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static uint32_t dc_mchash_be (const uint8_t *);
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static void dc_setfilt_21143 (struct dc_softc *);
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static void dc_setfilt_asix (struct dc_softc *);
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static void dc_setfilt_admtek (struct dc_softc *);
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static void dc_setfilt_xircom (struct dc_softc *);
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static void dc_setfilt (struct dc_softc *);
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static void dc_reset (struct dc_softc *);
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static int dc_list_rx_init (struct dc_softc *);
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static int dc_list_tx_init (struct dc_softc *);
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static void dc_read_srom (struct dc_softc *, int);
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static void dc_parse_21143_srom (struct dc_softc *);
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static void dc_decode_leaf_sia (struct dc_softc *, struct dc_eblock_sia *);
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static void dc_decode_leaf_mii (struct dc_softc *, struct dc_eblock_mii *);
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static void dc_decode_leaf_sym (struct dc_softc *, struct dc_eblock_sym *);
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static void dc_apply_fixup (struct dc_softc *, int);
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static void dc_dma_map_txbuf (void *, bus_dma_segment_t *, int, bus_size_t,
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int);
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static void dc_dma_map_rxbuf (void *, bus_dma_segment_t *, int, bus_size_t,
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int);
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#ifdef DC_USEIOSPACE
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#define DC_RES SYS_RES_IOPORT
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#define DC_RID DC_PCI_CFBIO
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#else
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#define DC_RES SYS_RES_MEMORY
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#define DC_RID DC_PCI_CFBMA
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#endif
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static device_method_t dc_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, dc_probe),
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DEVMETHOD(device_attach, dc_attach),
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DEVMETHOD(device_detach, dc_detach),
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DEVMETHOD(device_suspend, dc_suspend),
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DEVMETHOD(device_resume, dc_resume),
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DEVMETHOD(device_shutdown, dc_shutdown),
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/* bus interface */
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DEVMETHOD(bus_print_child, bus_generic_print_child),
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DEVMETHOD(bus_driver_added, bus_generic_driver_added),
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/* MII interface */
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DEVMETHOD(miibus_readreg, dc_miibus_readreg),
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DEVMETHOD(miibus_writereg, dc_miibus_writereg),
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DEVMETHOD(miibus_statchg, dc_miibus_statchg),
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DEVMETHOD(miibus_mediainit, dc_miibus_mediainit),
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{ 0, 0 }
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};
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static driver_t dc_driver = {
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"dc",
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dc_methods,
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sizeof(struct dc_softc)
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};
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static devclass_t dc_devclass;
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#ifdef __i386__
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static int dc_quick = 1;
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SYSCTL_INT(_hw, OID_AUTO, dc_quick, CTLFLAG_RW, &dc_quick, 0,
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"do not m_devget() in dc driver");
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#endif
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DRIVER_MODULE(dc, cardbus, dc_driver, dc_devclass, 0, 0);
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DRIVER_MODULE(dc, pci, dc_driver, dc_devclass, 0, 0);
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DRIVER_MODULE(miibus, dc, miibus_driver, miibus_devclass, 0, 0);
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#define DC_SETBIT(sc, reg, x) \
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CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) | (x))
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#define DC_CLRBIT(sc, reg, x) \
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CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) & ~(x))
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#define SIO_SET(x) DC_SETBIT(sc, DC_SIO, (x))
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#define SIO_CLR(x) DC_CLRBIT(sc, DC_SIO, (x))
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#define IS_MPSAFE 0
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static void
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dc_delay(struct dc_softc *sc)
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{
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int idx;
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for (idx = (300 / 33) + 1; idx > 0; idx--)
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CSR_READ_4(sc, DC_BUSCTL);
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}
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static void
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dc_eeprom_width(struct dc_softc *sc)
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{
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int i;
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/* Force EEPROM to idle state. */
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dc_eeprom_idle(sc);
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/* Enter EEPROM access mode. */
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CSR_WRITE_4(sc, DC_SIO, DC_SIO_EESEL);
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dc_delay(sc);
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DC_SETBIT(sc, DC_SIO, DC_SIO_ROMCTL_READ);
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dc_delay(sc);
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DC_CLRBIT(sc, DC_SIO, DC_SIO_EE_CLK);
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dc_delay(sc);
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DC_SETBIT(sc, DC_SIO, DC_SIO_EE_CS);
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dc_delay(sc);
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for (i = 3; i--;) {
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if (6 & (1 << i))
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DC_SETBIT(sc, DC_SIO, DC_SIO_EE_DATAIN);
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else
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DC_CLRBIT(sc, DC_SIO, DC_SIO_EE_DATAIN);
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dc_delay(sc);
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DC_SETBIT(sc, DC_SIO, DC_SIO_EE_CLK);
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dc_delay(sc);
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DC_CLRBIT(sc, DC_SIO, DC_SIO_EE_CLK);
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dc_delay(sc);
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}
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for (i = 1; i <= 12; i++) {
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DC_SETBIT(sc, DC_SIO, DC_SIO_EE_CLK);
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dc_delay(sc);
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if (!(CSR_READ_4(sc, DC_SIO) & DC_SIO_EE_DATAOUT)) {
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DC_CLRBIT(sc, DC_SIO, DC_SIO_EE_CLK);
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dc_delay(sc);
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break;
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}
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DC_CLRBIT(sc, DC_SIO, DC_SIO_EE_CLK);
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dc_delay(sc);
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}
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/* Turn off EEPROM access mode. */
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dc_eeprom_idle(sc);
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|
if (i < 4 || i > 12)
|
|
sc->dc_romwidth = 6;
|
|
else
|
|
sc->dc_romwidth = i;
|
|
|
|
/* Enter EEPROM access mode. */
|
|
CSR_WRITE_4(sc, DC_SIO, DC_SIO_EESEL);
|
|
dc_delay(sc);
|
|
DC_SETBIT(sc, DC_SIO, DC_SIO_ROMCTL_READ);
|
|
dc_delay(sc);
|
|
DC_CLRBIT(sc, DC_SIO, DC_SIO_EE_CLK);
|
|
dc_delay(sc);
|
|
DC_SETBIT(sc, DC_SIO, DC_SIO_EE_CS);
|
|
dc_delay(sc);
|
|
|
|
/* Turn off EEPROM access mode. */
|
|
dc_eeprom_idle(sc);
|
|
}
|
|
|
|
static void
|
|
dc_eeprom_idle(struct dc_softc *sc)
|
|
{
|
|
int i;
|
|
|
|
CSR_WRITE_4(sc, DC_SIO, DC_SIO_EESEL);
|
|
dc_delay(sc);
|
|
DC_SETBIT(sc, DC_SIO, DC_SIO_ROMCTL_READ);
|
|
dc_delay(sc);
|
|
DC_CLRBIT(sc, DC_SIO, DC_SIO_EE_CLK);
|
|
dc_delay(sc);
|
|
DC_SETBIT(sc, DC_SIO, DC_SIO_EE_CS);
|
|
dc_delay(sc);
|
|
|
|
for (i = 0; i < 25; i++) {
|
|
DC_CLRBIT(sc, DC_SIO, DC_SIO_EE_CLK);
|
|
dc_delay(sc);
|
|
DC_SETBIT(sc, DC_SIO, DC_SIO_EE_CLK);
|
|
dc_delay(sc);
|
|
}
|
|
|
|
DC_CLRBIT(sc, DC_SIO, DC_SIO_EE_CLK);
|
|
dc_delay(sc);
|
|
DC_CLRBIT(sc, DC_SIO, DC_SIO_EE_CS);
|
|
dc_delay(sc);
|
|
CSR_WRITE_4(sc, DC_SIO, 0x00000000);
|
|
}
|
|
|
|
/*
|
|
* Send a read command and address to the EEPROM, check for ACK.
|
|
*/
|
|
static void
|
|
dc_eeprom_putbyte(struct dc_softc *sc, int addr)
|
|
{
|
|
int d, i;
|
|
|
|
d = DC_EECMD_READ >> 6;
|
|
for (i = 3; i--; ) {
|
|
if (d & (1 << i))
|
|
DC_SETBIT(sc, DC_SIO, DC_SIO_EE_DATAIN);
|
|
else
|
|
DC_CLRBIT(sc, DC_SIO, DC_SIO_EE_DATAIN);
|
|
dc_delay(sc);
|
|
DC_SETBIT(sc, DC_SIO, DC_SIO_EE_CLK);
|
|
dc_delay(sc);
|
|
DC_CLRBIT(sc, DC_SIO, DC_SIO_EE_CLK);
|
|
dc_delay(sc);
|
|
}
|
|
|
|
/*
|
|
* Feed in each bit and strobe the clock.
|
|
*/
|
|
for (i = sc->dc_romwidth; i--;) {
|
|
if (addr & (1 << i)) {
|
|
SIO_SET(DC_SIO_EE_DATAIN);
|
|
} else {
|
|
SIO_CLR(DC_SIO_EE_DATAIN);
|
|
}
|
|
dc_delay(sc);
|
|
SIO_SET(DC_SIO_EE_CLK);
|
|
dc_delay(sc);
|
|
SIO_CLR(DC_SIO_EE_CLK);
|
|
dc_delay(sc);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Read a word of data stored in the EEPROM at address 'addr.'
|
|
* The PNIC 82c168/82c169 has its own non-standard way to read
|
|
* the EEPROM.
|
|
*/
|
|
static void
|
|
dc_eeprom_getword_pnic(struct dc_softc *sc, int addr, u_int16_t *dest)
|
|
{
|
|
int i;
|
|
u_int32_t r;
|
|
|
|
CSR_WRITE_4(sc, DC_PN_SIOCTL, DC_PN_EEOPCODE_READ | addr);
|
|
|
|
for (i = 0; i < DC_TIMEOUT; i++) {
|
|
DELAY(1);
|
|
r = CSR_READ_4(sc, DC_SIO);
|
|
if (!(r & DC_PN_SIOCTL_BUSY)) {
|
|
*dest = (u_int16_t)(r & 0xFFFF);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Read a word of data stored in the EEPROM at address 'addr.'
|
|
* The Xircom X3201 has its own non-standard way to read
|
|
* the EEPROM, too.
|
|
*/
|
|
static void
|
|
dc_eeprom_getword_xircom(struct dc_softc *sc, int addr, u_int16_t *dest)
|
|
{
|
|
|
|
SIO_SET(DC_SIO_ROMSEL | DC_SIO_ROMCTL_READ);
|
|
|
|
addr *= 2;
|
|
CSR_WRITE_4(sc, DC_ROM, addr | 0x160);
|
|
*dest = (u_int16_t)CSR_READ_4(sc, DC_SIO) & 0xff;
|
|
addr += 1;
|
|
CSR_WRITE_4(sc, DC_ROM, addr | 0x160);
|
|
*dest |= ((u_int16_t)CSR_READ_4(sc, DC_SIO) & 0xff) << 8;
|
|
|
|
SIO_CLR(DC_SIO_ROMSEL | DC_SIO_ROMCTL_READ);
|
|
}
|
|
|
|
/*
|
|
* Read a word of data stored in the EEPROM at address 'addr.'
|
|
*/
|
|
static void
|
|
dc_eeprom_getword(struct dc_softc *sc, int addr, u_int16_t *dest)
|
|
{
|
|
int i;
|
|
u_int16_t word = 0;
|
|
|
|
/* Force EEPROM to idle state. */
|
|
dc_eeprom_idle(sc);
|
|
|
|
/* Enter EEPROM access mode. */
|
|
CSR_WRITE_4(sc, DC_SIO, DC_SIO_EESEL);
|
|
dc_delay(sc);
|
|
DC_SETBIT(sc, DC_SIO, DC_SIO_ROMCTL_READ);
|
|
dc_delay(sc);
|
|
DC_CLRBIT(sc, DC_SIO, DC_SIO_EE_CLK);
|
|
dc_delay(sc);
|
|
DC_SETBIT(sc, DC_SIO, DC_SIO_EE_CS);
|
|
dc_delay(sc);
|
|
|
|
/*
|
|
* Send address of word we want to read.
|
|
*/
|
|
dc_eeprom_putbyte(sc, addr);
|
|
|
|
/*
|
|
* Start reading bits from EEPROM.
|
|
*/
|
|
for (i = 0x8000; i; i >>= 1) {
|
|
SIO_SET(DC_SIO_EE_CLK);
|
|
dc_delay(sc);
|
|
if (CSR_READ_4(sc, DC_SIO) & DC_SIO_EE_DATAOUT)
|
|
word |= i;
|
|
dc_delay(sc);
|
|
SIO_CLR(DC_SIO_EE_CLK);
|
|
dc_delay(sc);
|
|
}
|
|
|
|
/* Turn off EEPROM access mode. */
|
|
dc_eeprom_idle(sc);
|
|
|
|
*dest = word;
|
|
}
|
|
|
|
/*
|
|
* Read a sequence of words from the EEPROM.
|
|
*/
|
|
static void
|
|
dc_read_eeprom(struct dc_softc *sc, caddr_t dest, int off, int cnt, int swap)
|
|
{
|
|
int i;
|
|
u_int16_t word = 0, *ptr;
|
|
|
|
for (i = 0; i < cnt; i++) {
|
|
if (DC_IS_PNIC(sc))
|
|
dc_eeprom_getword_pnic(sc, off + i, &word);
|
|
else if (DC_IS_XIRCOM(sc))
|
|
dc_eeprom_getword_xircom(sc, off + i, &word);
|
|
else
|
|
dc_eeprom_getword(sc, off + i, &word);
|
|
ptr = (u_int16_t *)(dest + (i * 2));
|
|
if (swap)
|
|
*ptr = ntohs(word);
|
|
else
|
|
*ptr = word;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* The following two routines are taken from the Macronix 98713
|
|
* Application Notes pp.19-21.
|
|
*/
|
|
/*
|
|
* Write a bit to the MII bus.
|
|
*/
|
|
static void
|
|
dc_mii_writebit(struct dc_softc *sc, int bit)
|
|
{
|
|
|
|
if (bit)
|
|
CSR_WRITE_4(sc, DC_SIO,
|
|
DC_SIO_ROMCTL_WRITE | DC_SIO_MII_DATAOUT);
|
|
else
|
|
CSR_WRITE_4(sc, DC_SIO, DC_SIO_ROMCTL_WRITE);
|
|
|
|
DC_SETBIT(sc, DC_SIO, DC_SIO_MII_CLK);
|
|
DC_CLRBIT(sc, DC_SIO, DC_SIO_MII_CLK);
|
|
}
|
|
|
|
/*
|
|
* Read a bit from the MII bus.
|
|
*/
|
|
static int
|
|
dc_mii_readbit(struct dc_softc *sc)
|
|
{
|
|
|
|
CSR_WRITE_4(sc, DC_SIO, DC_SIO_ROMCTL_READ | DC_SIO_MII_DIR);
|
|
CSR_READ_4(sc, DC_SIO);
|
|
DC_SETBIT(sc, DC_SIO, DC_SIO_MII_CLK);
|
|
DC_CLRBIT(sc, DC_SIO, DC_SIO_MII_CLK);
|
|
if (CSR_READ_4(sc, DC_SIO) & DC_SIO_MII_DATAIN)
|
|
return (1);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Sync the PHYs by setting data bit and strobing the clock 32 times.
|
|
*/
|
|
static void
|
|
dc_mii_sync(struct dc_softc *sc)
|
|
{
|
|
int i;
|
|
|
|
CSR_WRITE_4(sc, DC_SIO, DC_SIO_ROMCTL_WRITE);
|
|
|
|
for (i = 0; i < 32; i++)
|
|
dc_mii_writebit(sc, 1);
|
|
}
|
|
|
|
/*
|
|
* Clock a series of bits through the MII.
|
|
*/
|
|
static void
|
|
dc_mii_send(struct dc_softc *sc, u_int32_t bits, int cnt)
|
|
{
|
|
int i;
|
|
|
|
for (i = (0x1 << (cnt - 1)); i; i >>= 1)
|
|
dc_mii_writebit(sc, bits & i);
|
|
}
|
|
|
|
/*
|
|
* Read an PHY register through the MII.
|
|
*/
|
|
static int
|
|
dc_mii_readreg(struct dc_softc *sc, struct dc_mii_frame *frame)
|
|
{
|
|
int i, ack;
|
|
|
|
DC_LOCK(sc);
|
|
|
|
/*
|
|
* Set up frame for RX.
|
|
*/
|
|
frame->mii_stdelim = DC_MII_STARTDELIM;
|
|
frame->mii_opcode = DC_MII_READOP;
|
|
frame->mii_turnaround = 0;
|
|
frame->mii_data = 0;
|
|
|
|
/*
|
|
* Sync the PHYs.
|
|
*/
|
|
dc_mii_sync(sc);
|
|
|
|
/*
|
|
* Send command/address info.
|
|
*/
|
|
dc_mii_send(sc, frame->mii_stdelim, 2);
|
|
dc_mii_send(sc, frame->mii_opcode, 2);
|
|
dc_mii_send(sc, frame->mii_phyaddr, 5);
|
|
dc_mii_send(sc, frame->mii_regaddr, 5);
|
|
|
|
#ifdef notdef
|
|
/* Idle bit */
|
|
dc_mii_writebit(sc, 1);
|
|
dc_mii_writebit(sc, 0);
|
|
#endif
|
|
|
|
/* Check for ack. */
|
|
ack = dc_mii_readbit(sc);
|
|
|
|
/*
|
|
* Now try reading data bits. If the ack failed, we still
|
|
* need to clock through 16 cycles to keep the PHY(s) in sync.
|
|
*/
|
|
if (ack) {
|
|
for (i = 0; i < 16; i++)
|
|
dc_mii_readbit(sc);
|
|
goto fail;
|
|
}
|
|
|
|
for (i = 0x8000; i; i >>= 1) {
|
|
if (!ack) {
|
|
if (dc_mii_readbit(sc))
|
|
frame->mii_data |= i;
|
|
}
|
|
}
|
|
|
|
fail:
|
|
|
|
dc_mii_writebit(sc, 0);
|
|
dc_mii_writebit(sc, 0);
|
|
|
|
DC_UNLOCK(sc);
|
|
|
|
if (ack)
|
|
return (1);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Write to a PHY register through the MII.
|
|
*/
|
|
static int
|
|
dc_mii_writereg(struct dc_softc *sc, struct dc_mii_frame *frame)
|
|
{
|
|
|
|
DC_LOCK(sc);
|
|
/*
|
|
* Set up frame for TX.
|
|
*/
|
|
|
|
frame->mii_stdelim = DC_MII_STARTDELIM;
|
|
frame->mii_opcode = DC_MII_WRITEOP;
|
|
frame->mii_turnaround = DC_MII_TURNAROUND;
|
|
|
|
/*
|
|
* Sync the PHYs.
|
|
*/
|
|
dc_mii_sync(sc);
|
|
|
|
dc_mii_send(sc, frame->mii_stdelim, 2);
|
|
dc_mii_send(sc, frame->mii_opcode, 2);
|
|
dc_mii_send(sc, frame->mii_phyaddr, 5);
|
|
dc_mii_send(sc, frame->mii_regaddr, 5);
|
|
dc_mii_send(sc, frame->mii_turnaround, 2);
|
|
dc_mii_send(sc, frame->mii_data, 16);
|
|
|
|
/* Idle bit. */
|
|
dc_mii_writebit(sc, 0);
|
|
dc_mii_writebit(sc, 0);
|
|
|
|
DC_UNLOCK(sc);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
dc_miibus_readreg(device_t dev, int phy, int reg)
|
|
{
|
|
struct dc_mii_frame frame;
|
|
struct dc_softc *sc;
|
|
int i, rval, phy_reg = 0;
|
|
|
|
sc = device_get_softc(dev);
|
|
bzero(&frame, sizeof(frame));
|
|
|
|
/*
|
|
* Note: both the AL981 and AN985 have internal PHYs,
|
|
* however the AL981 provides direct access to the PHY
|
|
* registers while the AN985 uses a serial MII interface.
|
|
* The AN985's MII interface is also buggy in that you
|
|
* can read from any MII address (0 to 31), but only address 1
|
|
* behaves normally. To deal with both cases, we pretend
|
|
* that the PHY is at MII address 1.
|
|
*/
|
|
if (DC_IS_ADMTEK(sc) && phy != DC_ADMTEK_PHYADDR)
|
|
return (0);
|
|
|
|
/*
|
|
* Note: the ukphy probes of the RS7112 report a PHY at
|
|
* MII address 0 (possibly HomePNA?) and 1 (ethernet)
|
|
* so we only respond to correct one.
|
|
*/
|
|
if (DC_IS_CONEXANT(sc) && phy != DC_CONEXANT_PHYADDR)
|
|
return (0);
|
|
|
|
if (sc->dc_pmode != DC_PMODE_MII) {
|
|
if (phy == (MII_NPHY - 1)) {
|
|
switch (reg) {
|
|
case MII_BMSR:
|
|
/*
|
|
* Fake something to make the probe
|
|
* code think there's a PHY here.
|
|
*/
|
|
return (BMSR_MEDIAMASK);
|
|
break;
|
|
case MII_PHYIDR1:
|
|
if (DC_IS_PNIC(sc))
|
|
return (DC_VENDORID_LO);
|
|
return (DC_VENDORID_DEC);
|
|
break;
|
|
case MII_PHYIDR2:
|
|
if (DC_IS_PNIC(sc))
|
|
return (DC_DEVICEID_82C168);
|
|
return (DC_DEVICEID_21143);
|
|
break;
|
|
default:
|
|
return (0);
|
|
break;
|
|
}
|
|
} else
|
|
return (0);
|
|
}
|
|
|
|
if (DC_IS_PNIC(sc)) {
|
|
CSR_WRITE_4(sc, DC_PN_MII, DC_PN_MIIOPCODE_READ |
|
|
(phy << 23) | (reg << 18));
|
|
for (i = 0; i < DC_TIMEOUT; i++) {
|
|
DELAY(1);
|
|
rval = CSR_READ_4(sc, DC_PN_MII);
|
|
if (!(rval & DC_PN_MII_BUSY)) {
|
|
rval &= 0xFFFF;
|
|
return (rval == 0xFFFF ? 0 : rval);
|
|
}
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
if (DC_IS_COMET(sc)) {
|
|
switch (reg) {
|
|
case MII_BMCR:
|
|
phy_reg = DC_AL_BMCR;
|
|
break;
|
|
case MII_BMSR:
|
|
phy_reg = DC_AL_BMSR;
|
|
break;
|
|
case MII_PHYIDR1:
|
|
phy_reg = DC_AL_VENID;
|
|
break;
|
|
case MII_PHYIDR2:
|
|
phy_reg = DC_AL_DEVID;
|
|
break;
|
|
case MII_ANAR:
|
|
phy_reg = DC_AL_ANAR;
|
|
break;
|
|
case MII_ANLPAR:
|
|
phy_reg = DC_AL_LPAR;
|
|
break;
|
|
case MII_ANER:
|
|
phy_reg = DC_AL_ANER;
|
|
break;
|
|
default:
|
|
printf("dc%d: phy_read: bad phy register %x\n",
|
|
sc->dc_unit, reg);
|
|
return (0);
|
|
break;
|
|
}
|
|
|
|
rval = CSR_READ_4(sc, phy_reg) & 0x0000FFFF;
|
|
|
|
if (rval == 0xFFFF)
|
|
return (0);
|
|
return (rval);
|
|
}
|
|
|
|
frame.mii_phyaddr = phy;
|
|
frame.mii_regaddr = reg;
|
|
if (sc->dc_type == DC_TYPE_98713) {
|
|
phy_reg = CSR_READ_4(sc, DC_NETCFG);
|
|
CSR_WRITE_4(sc, DC_NETCFG, phy_reg & ~DC_NETCFG_PORTSEL);
|
|
}
|
|
dc_mii_readreg(sc, &frame);
|
|
if (sc->dc_type == DC_TYPE_98713)
|
|
CSR_WRITE_4(sc, DC_NETCFG, phy_reg);
|
|
|
|
return (frame.mii_data);
|
|
}
|
|
|
|
static int
|
|
dc_miibus_writereg(device_t dev, int phy, int reg, int data)
|
|
{
|
|
struct dc_softc *sc;
|
|
struct dc_mii_frame frame;
|
|
int i, phy_reg = 0;
|
|
|
|
sc = device_get_softc(dev);
|
|
bzero(&frame, sizeof(frame));
|
|
|
|
if (DC_IS_ADMTEK(sc) && phy != DC_ADMTEK_PHYADDR)
|
|
return (0);
|
|
|
|
if (DC_IS_CONEXANT(sc) && phy != DC_CONEXANT_PHYADDR)
|
|
return (0);
|
|
|
|
if (DC_IS_PNIC(sc)) {
|
|
CSR_WRITE_4(sc, DC_PN_MII, DC_PN_MIIOPCODE_WRITE |
|
|
(phy << 23) | (reg << 10) | data);
|
|
for (i = 0; i < DC_TIMEOUT; i++) {
|
|
if (!(CSR_READ_4(sc, DC_PN_MII) & DC_PN_MII_BUSY))
|
|
break;
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
if (DC_IS_COMET(sc)) {
|
|
switch (reg) {
|
|
case MII_BMCR:
|
|
phy_reg = DC_AL_BMCR;
|
|
break;
|
|
case MII_BMSR:
|
|
phy_reg = DC_AL_BMSR;
|
|
break;
|
|
case MII_PHYIDR1:
|
|
phy_reg = DC_AL_VENID;
|
|
break;
|
|
case MII_PHYIDR2:
|
|
phy_reg = DC_AL_DEVID;
|
|
break;
|
|
case MII_ANAR:
|
|
phy_reg = DC_AL_ANAR;
|
|
break;
|
|
case MII_ANLPAR:
|
|
phy_reg = DC_AL_LPAR;
|
|
break;
|
|
case MII_ANER:
|
|
phy_reg = DC_AL_ANER;
|
|
break;
|
|
default:
|
|
printf("dc%d: phy_write: bad phy register %x\n",
|
|
sc->dc_unit, reg);
|
|
return (0);
|
|
break;
|
|
}
|
|
|
|
CSR_WRITE_4(sc, phy_reg, data);
|
|
return (0);
|
|
}
|
|
|
|
frame.mii_phyaddr = phy;
|
|
frame.mii_regaddr = reg;
|
|
frame.mii_data = data;
|
|
|
|
if (sc->dc_type == DC_TYPE_98713) {
|
|
phy_reg = CSR_READ_4(sc, DC_NETCFG);
|
|
CSR_WRITE_4(sc, DC_NETCFG, phy_reg & ~DC_NETCFG_PORTSEL);
|
|
}
|
|
dc_mii_writereg(sc, &frame);
|
|
if (sc->dc_type == DC_TYPE_98713)
|
|
CSR_WRITE_4(sc, DC_NETCFG, phy_reg);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
dc_miibus_statchg(device_t dev)
|
|
{
|
|
struct dc_softc *sc;
|
|
struct mii_data *mii;
|
|
struct ifmedia *ifm;
|
|
|
|
sc = device_get_softc(dev);
|
|
if (DC_IS_ADMTEK(sc))
|
|
return;
|
|
|
|
mii = device_get_softc(sc->dc_miibus);
|
|
ifm = &mii->mii_media;
|
|
if (DC_IS_DAVICOM(sc) &&
|
|
IFM_SUBTYPE(ifm->ifm_media) == IFM_HPNA_1) {
|
|
dc_setcfg(sc, ifm->ifm_media);
|
|
sc->dc_if_media = ifm->ifm_media;
|
|
} else {
|
|
dc_setcfg(sc, mii->mii_media_active);
|
|
sc->dc_if_media = mii->mii_media_active;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Special support for DM9102A cards with HomePNA PHYs. Note:
|
|
* with the Davicom DM9102A/DM9801 eval board that I have, it seems
|
|
* to be impossible to talk to the management interface of the DM9801
|
|
* PHY (its MDIO pin is not connected to anything). Consequently,
|
|
* the driver has to just 'know' about the additional mode and deal
|
|
* with it itself. *sigh*
|
|
*/
|
|
static void
|
|
dc_miibus_mediainit(device_t dev)
|
|
{
|
|
struct dc_softc *sc;
|
|
struct mii_data *mii;
|
|
struct ifmedia *ifm;
|
|
int rev;
|
|
|
|
rev = pci_read_config(dev, DC_PCI_CFRV, 4) & 0xFF;
|
|
|
|
sc = device_get_softc(dev);
|
|
mii = device_get_softc(sc->dc_miibus);
|
|
ifm = &mii->mii_media;
|
|
|
|
if (DC_IS_DAVICOM(sc) && rev >= DC_REVISION_DM9102A)
|
|
ifmedia_add(ifm, IFM_ETHER | IFM_HPNA_1, 0, NULL);
|
|
}
|
|
|
|
#define DC_POLY 0xEDB88320
|
|
#define DC_BITS_512 9
|
|
#define DC_BITS_128 7
|
|
#define DC_BITS_64 6
|
|
|
|
static uint32_t
|
|
dc_mchash_le(struct dc_softc *sc, const uint8_t *addr)
|
|
{
|
|
uint32_t crc;
|
|
int idx, bit;
|
|
uint8_t data;
|
|
|
|
/* Compute CRC for the address value. */
|
|
crc = 0xFFFFFFFF; /* initial value */
|
|
|
|
for (idx = 0; idx < 6; idx++) {
|
|
for (data = *addr++, bit = 0; bit < 8; bit++, data >>= 1)
|
|
crc = (crc >> 1) ^ (((crc ^ data) & 1) ? DC_POLY : 0);
|
|
}
|
|
|
|
/*
|
|
* The hash table on the PNIC II and the MX98715AEC-C/D/E
|
|
* chips is only 128 bits wide.
|
|
*/
|
|
if (sc->dc_flags & DC_128BIT_HASH)
|
|
return (crc & ((1 << DC_BITS_128) - 1));
|
|
|
|
/* The hash table on the MX98715BEC is only 64 bits wide. */
|
|
if (sc->dc_flags & DC_64BIT_HASH)
|
|
return (crc & ((1 << DC_BITS_64) - 1));
|
|
|
|
/* Xircom's hash filtering table is different (read: weird) */
|
|
/* Xircom uses the LEAST significant bits */
|
|
if (DC_IS_XIRCOM(sc)) {
|
|
if ((crc & 0x180) == 0x180)
|
|
return ((crc & 0x0F) + (crc & 0x70) * 3 + (14 << 4));
|
|
else
|
|
return ((crc & 0x1F) + ((crc >> 1) & 0xF0) * 3 +
|
|
(12 << 4));
|
|
}
|
|
|
|
return (crc & ((1 << DC_BITS_512) - 1));
|
|
}
|
|
|
|
/*
|
|
* Calculate CRC of a multicast group address, return the lower 6 bits.
|
|
*/
|
|
static uint32_t
|
|
dc_mchash_be(const uint8_t *addr)
|
|
{
|
|
uint32_t crc, carry;
|
|
int idx, bit;
|
|
uint8_t data;
|
|
|
|
/* Compute CRC for the address value. */
|
|
crc = 0xFFFFFFFF; /* initial value */
|
|
|
|
for (idx = 0; idx < 6; idx++) {
|
|
for (data = *addr++, bit = 0; bit < 8; bit++, data >>= 1) {
|
|
carry = ((crc & 0x80000000) ? 1 : 0) ^ (data & 0x01);
|
|
data >>= 1;
|
|
crc <<= 1;
|
|
if (carry)
|
|
crc = (crc ^ 0x04c11db6) | carry;
|
|
}
|
|
}
|
|
|
|
/* Return the filter bit position. */
|
|
return ((crc >> 26) & 0x0000003F);
|
|
}
|
|
|
|
/*
|
|
* 21143-style RX filter setup routine. Filter programming is done by
|
|
* downloading a special setup frame into the TX engine. 21143, Macronix,
|
|
* PNIC, PNIC II and Davicom chips are programmed this way.
|
|
*
|
|
* We always program the chip using 'hash perfect' mode, i.e. one perfect
|
|
* address (our node address) and a 512-bit hash filter for multicast
|
|
* frames. We also sneak the broadcast address into the hash filter since
|
|
* we need that too.
|
|
*/
|
|
static void
|
|
dc_setfilt_21143(struct dc_softc *sc)
|
|
{
|
|
struct dc_desc *sframe;
|
|
u_int32_t h, *sp;
|
|
struct ifmultiaddr *ifma;
|
|
struct ifnet *ifp;
|
|
int i;
|
|
|
|
ifp = &sc->arpcom.ac_if;
|
|
|
|
i = sc->dc_cdata.dc_tx_prod;
|
|
DC_INC(sc->dc_cdata.dc_tx_prod, DC_TX_LIST_CNT);
|
|
sc->dc_cdata.dc_tx_cnt++;
|
|
sframe = &sc->dc_ldata->dc_tx_list[i];
|
|
sp = sc->dc_cdata.dc_sbuf;
|
|
bzero(sp, DC_SFRAME_LEN);
|
|
|
|
sframe->dc_data = htole32(sc->dc_saddr);
|
|
sframe->dc_ctl = htole32(DC_SFRAME_LEN | DC_TXCTL_SETUP |
|
|
DC_TXCTL_TLINK | DC_FILTER_HASHPERF | DC_TXCTL_FINT);
|
|
|
|
sc->dc_cdata.dc_tx_chain[i] = (struct mbuf *)sc->dc_cdata.dc_sbuf;
|
|
|
|
/* If we want promiscuous mode, set the allframes bit. */
|
|
if (ifp->if_flags & IFF_PROMISC)
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_RX_PROMISC);
|
|
else
|
|
DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_RX_PROMISC);
|
|
|
|
if (ifp->if_flags & IFF_ALLMULTI)
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_RX_ALLMULTI);
|
|
else
|
|
DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_RX_ALLMULTI);
|
|
|
|
TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
|
|
if (ifma->ifma_addr->sa_family != AF_LINK)
|
|
continue;
|
|
h = dc_mchash_le(sc,
|
|
LLADDR((struct sockaddr_dl *)ifma->ifma_addr));
|
|
sp[h >> 4] |= htole32(1 << (h & 0xF));
|
|
}
|
|
|
|
if (ifp->if_flags & IFF_BROADCAST) {
|
|
h = dc_mchash_le(sc, ifp->if_broadcastaddr);
|
|
sp[h >> 4] |= htole32(1 << (h & 0xF));
|
|
}
|
|
|
|
/* Set our MAC address */
|
|
sp[39] = DC_SP_MAC(((u_int16_t *)sc->arpcom.ac_enaddr)[0]);
|
|
sp[40] = DC_SP_MAC(((u_int16_t *)sc->arpcom.ac_enaddr)[1]);
|
|
sp[41] = DC_SP_MAC(((u_int16_t *)sc->arpcom.ac_enaddr)[2]);
|
|
|
|
sframe->dc_status = htole32(DC_TXSTAT_OWN);
|
|
CSR_WRITE_4(sc, DC_TXSTART, 0xFFFFFFFF);
|
|
|
|
/*
|
|
* The PNIC takes an exceedingly long time to process its
|
|
* setup frame; wait 10ms after posting the setup frame
|
|
* before proceeding, just so it has time to swallow its
|
|
* medicine.
|
|
*/
|
|
DELAY(10000);
|
|
|
|
ifp->if_timer = 5;
|
|
}
|
|
|
|
static void
|
|
dc_setfilt_admtek(struct dc_softc *sc)
|
|
{
|
|
struct ifnet *ifp;
|
|
struct ifmultiaddr *ifma;
|
|
int h = 0;
|
|
u_int32_t hashes[2] = { 0, 0 };
|
|
|
|
ifp = &sc->arpcom.ac_if;
|
|
|
|
/* Init our MAC address. */
|
|
CSR_WRITE_4(sc, DC_AL_PAR0, *(u_int32_t *)(&sc->arpcom.ac_enaddr[0]));
|
|
CSR_WRITE_4(sc, DC_AL_PAR1, *(u_int32_t *)(&sc->arpcom.ac_enaddr[4]));
|
|
|
|
/* If we want promiscuous mode, set the allframes bit. */
|
|
if (ifp->if_flags & IFF_PROMISC)
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_RX_PROMISC);
|
|
else
|
|
DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_RX_PROMISC);
|
|
|
|
if (ifp->if_flags & IFF_ALLMULTI)
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_RX_ALLMULTI);
|
|
else
|
|
DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_RX_ALLMULTI);
|
|
|
|
/* First, zot all the existing hash bits. */
|
|
CSR_WRITE_4(sc, DC_AL_MAR0, 0);
|
|
CSR_WRITE_4(sc, DC_AL_MAR1, 0);
|
|
|
|
/*
|
|
* If we're already in promisc or allmulti mode, we
|
|
* don't have to bother programming the multicast filter.
|
|
*/
|
|
if (ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI))
|
|
return;
|
|
|
|
/* Now program new ones. */
|
|
TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
|
|
if (ifma->ifma_addr->sa_family != AF_LINK)
|
|
continue;
|
|
if (DC_IS_CENTAUR(sc))
|
|
h = dc_mchash_le(sc,
|
|
LLADDR((struct sockaddr_dl *)ifma->ifma_addr));
|
|
else
|
|
h = dc_mchash_be(
|
|
LLADDR((struct sockaddr_dl *)ifma->ifma_addr));
|
|
if (h < 32)
|
|
hashes[0] |= (1 << h);
|
|
else
|
|
hashes[1] |= (1 << (h - 32));
|
|
}
|
|
|
|
CSR_WRITE_4(sc, DC_AL_MAR0, hashes[0]);
|
|
CSR_WRITE_4(sc, DC_AL_MAR1, hashes[1]);
|
|
}
|
|
|
|
static void
|
|
dc_setfilt_asix(struct dc_softc *sc)
|
|
{
|
|
struct ifnet *ifp;
|
|
struct ifmultiaddr *ifma;
|
|
int h = 0;
|
|
u_int32_t hashes[2] = { 0, 0 };
|
|
|
|
ifp = &sc->arpcom.ac_if;
|
|
|
|
/* Init our MAC address */
|
|
CSR_WRITE_4(sc, DC_AX_FILTIDX, DC_AX_FILTIDX_PAR0);
|
|
CSR_WRITE_4(sc, DC_AX_FILTDATA,
|
|
*(u_int32_t *)(&sc->arpcom.ac_enaddr[0]));
|
|
CSR_WRITE_4(sc, DC_AX_FILTIDX, DC_AX_FILTIDX_PAR1);
|
|
CSR_WRITE_4(sc, DC_AX_FILTDATA,
|
|
*(u_int32_t *)(&sc->arpcom.ac_enaddr[4]));
|
|
|
|
/* If we want promiscuous mode, set the allframes bit. */
|
|
if (ifp->if_flags & IFF_PROMISC)
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_RX_PROMISC);
|
|
else
|
|
DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_RX_PROMISC);
|
|
|
|
if (ifp->if_flags & IFF_ALLMULTI)
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_RX_ALLMULTI);
|
|
else
|
|
DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_RX_ALLMULTI);
|
|
|
|
/*
|
|
* The ASIX chip has a special bit to enable reception
|
|
* of broadcast frames.
|
|
*/
|
|
if (ifp->if_flags & IFF_BROADCAST)
|
|
DC_SETBIT(sc, DC_NETCFG, DC_AX_NETCFG_RX_BROAD);
|
|
else
|
|
DC_CLRBIT(sc, DC_NETCFG, DC_AX_NETCFG_RX_BROAD);
|
|
|
|
/* first, zot all the existing hash bits */
|
|
CSR_WRITE_4(sc, DC_AX_FILTIDX, DC_AX_FILTIDX_MAR0);
|
|
CSR_WRITE_4(sc, DC_AX_FILTDATA, 0);
|
|
CSR_WRITE_4(sc, DC_AX_FILTIDX, DC_AX_FILTIDX_MAR1);
|
|
CSR_WRITE_4(sc, DC_AX_FILTDATA, 0);
|
|
|
|
/*
|
|
* If we're already in promisc or allmulti mode, we
|
|
* don't have to bother programming the multicast filter.
|
|
*/
|
|
if (ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI))
|
|
return;
|
|
|
|
/* now program new ones */
|
|
TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
|
|
if (ifma->ifma_addr->sa_family != AF_LINK)
|
|
continue;
|
|
h = dc_mchash_be(LLADDR((struct sockaddr_dl *)ifma->ifma_addr));
|
|
if (h < 32)
|
|
hashes[0] |= (1 << h);
|
|
else
|
|
hashes[1] |= (1 << (h - 32));
|
|
}
|
|
|
|
CSR_WRITE_4(sc, DC_AX_FILTIDX, DC_AX_FILTIDX_MAR0);
|
|
CSR_WRITE_4(sc, DC_AX_FILTDATA, hashes[0]);
|
|
CSR_WRITE_4(sc, DC_AX_FILTIDX, DC_AX_FILTIDX_MAR1);
|
|
CSR_WRITE_4(sc, DC_AX_FILTDATA, hashes[1]);
|
|
}
|
|
|
|
static void
|
|
dc_setfilt_xircom(struct dc_softc *sc)
|
|
{
|
|
struct ifnet *ifp;
|
|
struct ifmultiaddr *ifma;
|
|
struct dc_desc *sframe;
|
|
u_int32_t h, *sp;
|
|
int i;
|
|
|
|
ifp = &sc->arpcom.ac_if;
|
|
DC_CLRBIT(sc, DC_NETCFG, (DC_NETCFG_TX_ON | DC_NETCFG_RX_ON));
|
|
|
|
i = sc->dc_cdata.dc_tx_prod;
|
|
DC_INC(sc->dc_cdata.dc_tx_prod, DC_TX_LIST_CNT);
|
|
sc->dc_cdata.dc_tx_cnt++;
|
|
sframe = &sc->dc_ldata->dc_tx_list[i];
|
|
sp = sc->dc_cdata.dc_sbuf;
|
|
bzero(sp, DC_SFRAME_LEN);
|
|
|
|
sframe->dc_data = htole32(sc->dc_saddr);
|
|
sframe->dc_ctl = htole32(DC_SFRAME_LEN | DC_TXCTL_SETUP |
|
|
DC_TXCTL_TLINK | DC_FILTER_HASHPERF | DC_TXCTL_FINT);
|
|
|
|
sc->dc_cdata.dc_tx_chain[i] = (struct mbuf *)sc->dc_cdata.dc_sbuf;
|
|
|
|
/* If we want promiscuous mode, set the allframes bit. */
|
|
if (ifp->if_flags & IFF_PROMISC)
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_RX_PROMISC);
|
|
else
|
|
DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_RX_PROMISC);
|
|
|
|
if (ifp->if_flags & IFF_ALLMULTI)
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_RX_ALLMULTI);
|
|
else
|
|
DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_RX_ALLMULTI);
|
|
|
|
TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
|
|
if (ifma->ifma_addr->sa_family != AF_LINK)
|
|
continue;
|
|
h = dc_mchash_le(sc,
|
|
LLADDR((struct sockaddr_dl *)ifma->ifma_addr));
|
|
sp[h >> 4] |= htole32(1 << (h & 0xF));
|
|
}
|
|
|
|
if (ifp->if_flags & IFF_BROADCAST) {
|
|
h = dc_mchash_le(sc, ifp->if_broadcastaddr);
|
|
sp[h >> 4] |= htole32(1 << (h & 0xF));
|
|
}
|
|
|
|
/* Set our MAC address */
|
|
sp[0] = DC_SP_MAC(((u_int16_t *)sc->arpcom.ac_enaddr)[0]);
|
|
sp[1] = DC_SP_MAC(((u_int16_t *)sc->arpcom.ac_enaddr)[1]);
|
|
sp[2] = DC_SP_MAC(((u_int16_t *)sc->arpcom.ac_enaddr)[2]);
|
|
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_TX_ON);
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_RX_ON);
|
|
ifp->if_flags |= IFF_RUNNING;
|
|
sframe->dc_status = htole32(DC_TXSTAT_OWN);
|
|
CSR_WRITE_4(sc, DC_TXSTART, 0xFFFFFFFF);
|
|
|
|
/*
|
|
* Wait some time...
|
|
*/
|
|
DELAY(1000);
|
|
|
|
ifp->if_timer = 5;
|
|
}
|
|
|
|
static void
|
|
dc_setfilt(struct dc_softc *sc)
|
|
{
|
|
|
|
if (DC_IS_INTEL(sc) || DC_IS_MACRONIX(sc) || DC_IS_PNIC(sc) ||
|
|
DC_IS_PNICII(sc) || DC_IS_DAVICOM(sc) || DC_IS_CONEXANT(sc))
|
|
dc_setfilt_21143(sc);
|
|
|
|
if (DC_IS_ASIX(sc))
|
|
dc_setfilt_asix(sc);
|
|
|
|
if (DC_IS_ADMTEK(sc))
|
|
dc_setfilt_admtek(sc);
|
|
|
|
if (DC_IS_XIRCOM(sc))
|
|
dc_setfilt_xircom(sc);
|
|
}
|
|
|
|
/*
|
|
* In order to fiddle with the 'full-duplex' and '100Mbps' bits in
|
|
* the netconfig register, we first have to put the transmit and/or
|
|
* receive logic in the idle state.
|
|
*/
|
|
static void
|
|
dc_setcfg(struct dc_softc *sc, int media)
|
|
{
|
|
int i, restart = 0, watchdogreg;
|
|
u_int32_t isr;
|
|
|
|
if (IFM_SUBTYPE(media) == IFM_NONE)
|
|
return;
|
|
|
|
if (CSR_READ_4(sc, DC_NETCFG) & (DC_NETCFG_TX_ON | DC_NETCFG_RX_ON)) {
|
|
restart = 1;
|
|
DC_CLRBIT(sc, DC_NETCFG, (DC_NETCFG_TX_ON | DC_NETCFG_RX_ON));
|
|
|
|
for (i = 0; i < DC_TIMEOUT; i++) {
|
|
isr = CSR_READ_4(sc, DC_ISR);
|
|
if (isr & DC_ISR_TX_IDLE &&
|
|
((isr & DC_ISR_RX_STATE) == DC_RXSTATE_STOPPED ||
|
|
(isr & DC_ISR_RX_STATE) == DC_RXSTATE_WAIT))
|
|
break;
|
|
DELAY(10);
|
|
}
|
|
|
|
if (i == DC_TIMEOUT)
|
|
printf("dc%d: failed to force tx and "
|
|
"rx to idle state\n", sc->dc_unit);
|
|
}
|
|
|
|
if (IFM_SUBTYPE(media) == IFM_100_TX) {
|
|
DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_SPEEDSEL);
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_HEARTBEAT);
|
|
if (sc->dc_pmode == DC_PMODE_MII) {
|
|
if (DC_IS_INTEL(sc)) {
|
|
/* There's a write enable bit here that reads as 1. */
|
|
watchdogreg = CSR_READ_4(sc, DC_WATCHDOG);
|
|
watchdogreg &= ~DC_WDOG_CTLWREN;
|
|
watchdogreg |= DC_WDOG_JABBERDIS;
|
|
CSR_WRITE_4(sc, DC_WATCHDOG, watchdogreg);
|
|
} else {
|
|
DC_SETBIT(sc, DC_WATCHDOG, DC_WDOG_JABBERDIS);
|
|
}
|
|
DC_CLRBIT(sc, DC_NETCFG, (DC_NETCFG_PCS |
|
|
DC_NETCFG_PORTSEL | DC_NETCFG_SCRAMBLER));
|
|
if (sc->dc_type == DC_TYPE_98713)
|
|
DC_SETBIT(sc, DC_NETCFG, (DC_NETCFG_PCS |
|
|
DC_NETCFG_SCRAMBLER));
|
|
if (!DC_IS_DAVICOM(sc))
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_PORTSEL);
|
|
DC_CLRBIT(sc, DC_10BTCTRL, 0xFFFF);
|
|
if (DC_IS_INTEL(sc))
|
|
dc_apply_fixup(sc, IFM_AUTO);
|
|
} else {
|
|
if (DC_IS_PNIC(sc)) {
|
|
DC_PN_GPIO_SETBIT(sc, DC_PN_GPIO_SPEEDSEL);
|
|
DC_PN_GPIO_SETBIT(sc, DC_PN_GPIO_100TX_LOOP);
|
|
DC_SETBIT(sc, DC_PN_NWAY, DC_PN_NWAY_SPEEDSEL);
|
|
}
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_PORTSEL);
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_PCS);
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_SCRAMBLER);
|
|
if (DC_IS_INTEL(sc))
|
|
dc_apply_fixup(sc,
|
|
(media & IFM_GMASK) == IFM_FDX ?
|
|
IFM_100_TX | IFM_FDX : IFM_100_TX);
|
|
}
|
|
}
|
|
|
|
if (IFM_SUBTYPE(media) == IFM_10_T) {
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_SPEEDSEL);
|
|
DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_HEARTBEAT);
|
|
if (sc->dc_pmode == DC_PMODE_MII) {
|
|
/* There's a write enable bit here that reads as 1. */
|
|
if (DC_IS_INTEL(sc)) {
|
|
watchdogreg = CSR_READ_4(sc, DC_WATCHDOG);
|
|
watchdogreg &= ~DC_WDOG_CTLWREN;
|
|
watchdogreg |= DC_WDOG_JABBERDIS;
|
|
CSR_WRITE_4(sc, DC_WATCHDOG, watchdogreg);
|
|
} else {
|
|
DC_SETBIT(sc, DC_WATCHDOG, DC_WDOG_JABBERDIS);
|
|
}
|
|
DC_CLRBIT(sc, DC_NETCFG, (DC_NETCFG_PCS |
|
|
DC_NETCFG_PORTSEL | DC_NETCFG_SCRAMBLER));
|
|
if (sc->dc_type == DC_TYPE_98713)
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_PCS);
|
|
if (!DC_IS_DAVICOM(sc))
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_PORTSEL);
|
|
DC_CLRBIT(sc, DC_10BTCTRL, 0xFFFF);
|
|
if (DC_IS_INTEL(sc))
|
|
dc_apply_fixup(sc, IFM_AUTO);
|
|
} else {
|
|
if (DC_IS_PNIC(sc)) {
|
|
DC_PN_GPIO_CLRBIT(sc, DC_PN_GPIO_SPEEDSEL);
|
|
DC_PN_GPIO_SETBIT(sc, DC_PN_GPIO_100TX_LOOP);
|
|
DC_CLRBIT(sc, DC_PN_NWAY, DC_PN_NWAY_SPEEDSEL);
|
|
}
|
|
DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_PORTSEL);
|
|
DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_PCS);
|
|
DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_SCRAMBLER);
|
|
if (DC_IS_INTEL(sc)) {
|
|
DC_CLRBIT(sc, DC_SIARESET, DC_SIA_RESET);
|
|
DC_CLRBIT(sc, DC_10BTCTRL, 0xFFFF);
|
|
if ((media & IFM_GMASK) == IFM_FDX)
|
|
DC_SETBIT(sc, DC_10BTCTRL, 0x7F3D);
|
|
else
|
|
DC_SETBIT(sc, DC_10BTCTRL, 0x7F3F);
|
|
DC_SETBIT(sc, DC_SIARESET, DC_SIA_RESET);
|
|
DC_CLRBIT(sc, DC_10BTCTRL,
|
|
DC_TCTL_AUTONEGENBL);
|
|
dc_apply_fixup(sc,
|
|
(media & IFM_GMASK) == IFM_FDX ?
|
|
IFM_10_T | IFM_FDX : IFM_10_T);
|
|
DELAY(20000);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* If this is a Davicom DM9102A card with a DM9801 HomePNA
|
|
* PHY and we want HomePNA mode, set the portsel bit to turn
|
|
* on the external MII port.
|
|
*/
|
|
if (DC_IS_DAVICOM(sc)) {
|
|
if (IFM_SUBTYPE(media) == IFM_HPNA_1) {
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_PORTSEL);
|
|
sc->dc_link = 1;
|
|
} else {
|
|
DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_PORTSEL);
|
|
}
|
|
}
|
|
|
|
if ((media & IFM_GMASK) == IFM_FDX) {
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_FULLDUPLEX);
|
|
if (sc->dc_pmode == DC_PMODE_SYM && DC_IS_PNIC(sc))
|
|
DC_SETBIT(sc, DC_PN_NWAY, DC_PN_NWAY_DUPLEX);
|
|
} else {
|
|
DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_FULLDUPLEX);
|
|
if (sc->dc_pmode == DC_PMODE_SYM && DC_IS_PNIC(sc))
|
|
DC_CLRBIT(sc, DC_PN_NWAY, DC_PN_NWAY_DUPLEX);
|
|
}
|
|
|
|
if (restart)
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_TX_ON | DC_NETCFG_RX_ON);
|
|
}
|
|
|
|
static void
|
|
dc_reset(struct dc_softc *sc)
|
|
{
|
|
int i;
|
|
|
|
DC_SETBIT(sc, DC_BUSCTL, DC_BUSCTL_RESET);
|
|
|
|
for (i = 0; i < DC_TIMEOUT; i++) {
|
|
DELAY(10);
|
|
if (!(CSR_READ_4(sc, DC_BUSCTL) & DC_BUSCTL_RESET))
|
|
break;
|
|
}
|
|
|
|
if (DC_IS_ASIX(sc) || DC_IS_ADMTEK(sc) || DC_IS_CONEXANT(sc) ||
|
|
DC_IS_XIRCOM(sc) || DC_IS_INTEL(sc)) {
|
|
DELAY(10000);
|
|
DC_CLRBIT(sc, DC_BUSCTL, DC_BUSCTL_RESET);
|
|
i = 0;
|
|
}
|
|
|
|
if (i == DC_TIMEOUT)
|
|
printf("dc%d: reset never completed!\n", sc->dc_unit);
|
|
|
|
/* Wait a little while for the chip to get its brains in order. */
|
|
DELAY(1000);
|
|
|
|
CSR_WRITE_4(sc, DC_IMR, 0x00000000);
|
|
CSR_WRITE_4(sc, DC_BUSCTL, 0x00000000);
|
|
CSR_WRITE_4(sc, DC_NETCFG, 0x00000000);
|
|
|
|
/*
|
|
* Bring the SIA out of reset. In some cases, it looks
|
|
* like failing to unreset the SIA soon enough gets it
|
|
* into a state where it will never come out of reset
|
|
* until we reset the whole chip again.
|
|
*/
|
|
if (DC_IS_INTEL(sc)) {
|
|
DC_SETBIT(sc, DC_SIARESET, DC_SIA_RESET);
|
|
CSR_WRITE_4(sc, DC_10BTCTRL, 0);
|
|
CSR_WRITE_4(sc, DC_WATCHDOG, 0);
|
|
}
|
|
}
|
|
|
|
static struct dc_type *
|
|
dc_devtype(device_t dev)
|
|
{
|
|
struct dc_type *t;
|
|
u_int32_t rev;
|
|
|
|
t = dc_devs;
|
|
|
|
while (t->dc_name != NULL) {
|
|
if ((pci_get_vendor(dev) == t->dc_vid) &&
|
|
(pci_get_device(dev) == t->dc_did)) {
|
|
/* Check the PCI revision */
|
|
rev = pci_read_config(dev, DC_PCI_CFRV, 4) & 0xFF;
|
|
if (t->dc_did == DC_DEVICEID_98713 &&
|
|
rev >= DC_REVISION_98713A)
|
|
t++;
|
|
if (t->dc_did == DC_DEVICEID_98713_CP &&
|
|
rev >= DC_REVISION_98713A)
|
|
t++;
|
|
if (t->dc_did == DC_DEVICEID_987x5 &&
|
|
rev >= DC_REVISION_98715AEC_C)
|
|
t++;
|
|
if (t->dc_did == DC_DEVICEID_987x5 &&
|
|
rev >= DC_REVISION_98725)
|
|
t++;
|
|
if (t->dc_did == DC_DEVICEID_AX88140A &&
|
|
rev >= DC_REVISION_88141)
|
|
t++;
|
|
if (t->dc_did == DC_DEVICEID_82C168 &&
|
|
rev >= DC_REVISION_82C169)
|
|
t++;
|
|
if (t->dc_did == DC_DEVICEID_DM9102 &&
|
|
rev >= DC_REVISION_DM9102A)
|
|
t++;
|
|
/*
|
|
* The Microsoft MN-130 has a device ID of 0x0002,
|
|
* which happens to be the same as the PNIC 82c168.
|
|
* To keep dc_attach() from getting confused, we
|
|
* pretend its ID is something different.
|
|
* XXX: ideally, dc_attach() should be checking
|
|
* vendorid+deviceid together to avoid such
|
|
* collisions.
|
|
*/
|
|
if (t->dc_vid == DC_VENDORID_MICROSOFT &&
|
|
t->dc_did == DC_DEVICEID_MSMN130)
|
|
t++;
|
|
return (t);
|
|
}
|
|
t++;
|
|
}
|
|
|
|
return (NULL);
|
|
}
|
|
|
|
/*
|
|
* Probe for a 21143 or clone chip. Check the PCI vendor and device
|
|
* IDs against our list and return a device name if we find a match.
|
|
* We do a little bit of extra work to identify the exact type of
|
|
* chip. The MX98713 and MX98713A have the same PCI vendor/device ID,
|
|
* but different revision IDs. The same is true for 98715/98715A
|
|
* chips and the 98725, as well as the ASIX and ADMtek chips. In some
|
|
* cases, the exact chip revision affects driver behavior.
|
|
*/
|
|
static int
|
|
dc_probe(device_t dev)
|
|
{
|
|
struct dc_type *t;
|
|
|
|
t = dc_devtype(dev);
|
|
|
|
if (t != NULL) {
|
|
device_set_desc(dev, t->dc_name);
|
|
return (0);
|
|
}
|
|
|
|
return (ENXIO);
|
|
}
|
|
|
|
#ifndef BURN_BRIDGES
|
|
static void
|
|
dc_acpi(device_t dev)
|
|
{
|
|
int unit;
|
|
u_int32_t iobase, membase, irq;
|
|
|
|
unit = device_get_unit(dev);
|
|
|
|
if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
|
|
/* Save important PCI config data. */
|
|
iobase = pci_read_config(dev, DC_PCI_CFBIO, 4);
|
|
membase = pci_read_config(dev, DC_PCI_CFBMA, 4);
|
|
irq = pci_read_config(dev, DC_PCI_CFIT, 4);
|
|
|
|
/* Reset the power state. */
|
|
printf("dc%d: chip is in D%d power mode "
|
|
"-- setting to D0\n", unit,
|
|
pci_get_powerstate(dev));
|
|
pci_set_powerstate(dev, PCI_POWERSTATE_D0);
|
|
|
|
/* Restore PCI config data. */
|
|
pci_write_config(dev, DC_PCI_CFBIO, iobase, 4);
|
|
pci_write_config(dev, DC_PCI_CFBMA, membase, 4);
|
|
pci_write_config(dev, DC_PCI_CFIT, irq, 4);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
static void
|
|
dc_apply_fixup(struct dc_softc *sc, int media)
|
|
{
|
|
struct dc_mediainfo *m;
|
|
u_int8_t *p;
|
|
int i;
|
|
u_int32_t reg;
|
|
|
|
m = sc->dc_mi;
|
|
|
|
while (m != NULL) {
|
|
if (m->dc_media == media)
|
|
break;
|
|
m = m->dc_next;
|
|
}
|
|
|
|
if (m == NULL)
|
|
return;
|
|
|
|
for (i = 0, p = m->dc_reset_ptr; i < m->dc_reset_len; i++, p += 2) {
|
|
reg = (p[0] | (p[1] << 8)) << 16;
|
|
CSR_WRITE_4(sc, DC_WATCHDOG, reg);
|
|
}
|
|
|
|
for (i = 0, p = m->dc_gp_ptr; i < m->dc_gp_len; i++, p += 2) {
|
|
reg = (p[0] | (p[1] << 8)) << 16;
|
|
CSR_WRITE_4(sc, DC_WATCHDOG, reg);
|
|
}
|
|
}
|
|
|
|
static void
|
|
dc_decode_leaf_sia(struct dc_softc *sc, struct dc_eblock_sia *l)
|
|
{
|
|
struct dc_mediainfo *m;
|
|
|
|
m = malloc(sizeof(struct dc_mediainfo), M_DEVBUF, M_NOWAIT | M_ZERO);
|
|
switch (l->dc_sia_code & ~DC_SIA_CODE_EXT) {
|
|
case DC_SIA_CODE_10BT:
|
|
m->dc_media = IFM_10_T;
|
|
break;
|
|
case DC_SIA_CODE_10BT_FDX:
|
|
m->dc_media = IFM_10_T | IFM_FDX;
|
|
break;
|
|
case DC_SIA_CODE_10B2:
|
|
m->dc_media = IFM_10_2;
|
|
break;
|
|
case DC_SIA_CODE_10B5:
|
|
m->dc_media = IFM_10_5;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* We need to ignore CSR13, CSR14, CSR15 for SIA mode.
|
|
* Things apparently already work for cards that do
|
|
* supply Media Specific Data.
|
|
*/
|
|
if (l->dc_sia_code & DC_SIA_CODE_EXT) {
|
|
m->dc_gp_len = 2;
|
|
m->dc_gp_ptr =
|
|
(u_int8_t *)&l->dc_un.dc_sia_ext.dc_sia_gpio_ctl;
|
|
} else {
|
|
m->dc_gp_len = 2;
|
|
m->dc_gp_ptr =
|
|
(u_int8_t *)&l->dc_un.dc_sia_noext.dc_sia_gpio_ctl;
|
|
}
|
|
|
|
m->dc_next = sc->dc_mi;
|
|
sc->dc_mi = m;
|
|
|
|
sc->dc_pmode = DC_PMODE_SIA;
|
|
}
|
|
|
|
static void
|
|
dc_decode_leaf_sym(struct dc_softc *sc, struct dc_eblock_sym *l)
|
|
{
|
|
struct dc_mediainfo *m;
|
|
|
|
m = malloc(sizeof(struct dc_mediainfo), M_DEVBUF, M_NOWAIT | M_ZERO);
|
|
if (l->dc_sym_code == DC_SYM_CODE_100BT)
|
|
m->dc_media = IFM_100_TX;
|
|
|
|
if (l->dc_sym_code == DC_SYM_CODE_100BT_FDX)
|
|
m->dc_media = IFM_100_TX | IFM_FDX;
|
|
|
|
m->dc_gp_len = 2;
|
|
m->dc_gp_ptr = (u_int8_t *)&l->dc_sym_gpio_ctl;
|
|
|
|
m->dc_next = sc->dc_mi;
|
|
sc->dc_mi = m;
|
|
|
|
sc->dc_pmode = DC_PMODE_SYM;
|
|
}
|
|
|
|
static void
|
|
dc_decode_leaf_mii(struct dc_softc *sc, struct dc_eblock_mii *l)
|
|
{
|
|
struct dc_mediainfo *m;
|
|
u_int8_t *p;
|
|
|
|
m = malloc(sizeof(struct dc_mediainfo), M_DEVBUF, M_NOWAIT | M_ZERO);
|
|
/* We abuse IFM_AUTO to represent MII. */
|
|
m->dc_media = IFM_AUTO;
|
|
m->dc_gp_len = l->dc_gpr_len;
|
|
|
|
p = (u_int8_t *)l;
|
|
p += sizeof(struct dc_eblock_mii);
|
|
m->dc_gp_ptr = p;
|
|
p += 2 * l->dc_gpr_len;
|
|
m->dc_reset_len = *p;
|
|
p++;
|
|
m->dc_reset_ptr = p;
|
|
|
|
m->dc_next = sc->dc_mi;
|
|
sc->dc_mi = m;
|
|
}
|
|
|
|
static void
|
|
dc_read_srom(struct dc_softc *sc, int bits)
|
|
{
|
|
int size;
|
|
|
|
size = 2 << bits;
|
|
sc->dc_srom = malloc(size, M_DEVBUF, M_NOWAIT);
|
|
dc_read_eeprom(sc, (caddr_t)sc->dc_srom, 0, (size / 2), 0);
|
|
}
|
|
|
|
static void
|
|
dc_parse_21143_srom(struct dc_softc *sc)
|
|
{
|
|
struct dc_leaf_hdr *lhdr;
|
|
struct dc_eblock_hdr *hdr;
|
|
int have_mii, i, loff;
|
|
char *ptr;
|
|
|
|
have_mii = 0;
|
|
loff = sc->dc_srom[27];
|
|
lhdr = (struct dc_leaf_hdr *)&(sc->dc_srom[loff]);
|
|
|
|
ptr = (char *)lhdr;
|
|
ptr += sizeof(struct dc_leaf_hdr) - 1;
|
|
/*
|
|
* Look if we got a MII media block.
|
|
*/
|
|
for (i = 0; i < lhdr->dc_mcnt; i++) {
|
|
hdr = (struct dc_eblock_hdr *)ptr;
|
|
if (hdr->dc_type == DC_EBLOCK_MII)
|
|
have_mii++;
|
|
|
|
ptr += (hdr->dc_len & 0x7F);
|
|
ptr++;
|
|
}
|
|
|
|
/*
|
|
* Do the same thing again. Only use SIA and SYM media
|
|
* blocks if no MII media block is available.
|
|
*/
|
|
ptr = (char *)lhdr;
|
|
ptr += sizeof(struct dc_leaf_hdr) - 1;
|
|
for (i = 0; i < lhdr->dc_mcnt; i++) {
|
|
hdr = (struct dc_eblock_hdr *)ptr;
|
|
switch (hdr->dc_type) {
|
|
case DC_EBLOCK_MII:
|
|
dc_decode_leaf_mii(sc, (struct dc_eblock_mii *)hdr);
|
|
break;
|
|
case DC_EBLOCK_SIA:
|
|
if (! have_mii)
|
|
dc_decode_leaf_sia(sc,
|
|
(struct dc_eblock_sia *)hdr);
|
|
break;
|
|
case DC_EBLOCK_SYM:
|
|
if (! have_mii)
|
|
dc_decode_leaf_sym(sc,
|
|
(struct dc_eblock_sym *)hdr);
|
|
break;
|
|
default:
|
|
/* Don't care. Yet. */
|
|
break;
|
|
}
|
|
ptr += (hdr->dc_len & 0x7F);
|
|
ptr++;
|
|
}
|
|
}
|
|
|
|
static void
|
|
dc_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error)
|
|
{
|
|
u_int32_t *paddr;
|
|
|
|
KASSERT(nseg == 1, ("wrong number of segments, should be 1"));
|
|
paddr = arg;
|
|
*paddr = segs->ds_addr;
|
|
}
|
|
|
|
/*
|
|
* Attach the interface. Allocate softc structures, do ifmedia
|
|
* setup and ethernet/BPF attach.
|
|
*/
|
|
static int
|
|
dc_attach(device_t dev)
|
|
{
|
|
int tmp = 0;
|
|
u_char eaddr[ETHER_ADDR_LEN];
|
|
u_int32_t command;
|
|
struct dc_softc *sc;
|
|
struct ifnet *ifp;
|
|
u_int32_t revision;
|
|
int unit, error = 0, rid, mac_offset;
|
|
int i;
|
|
u_int8_t *mac;
|
|
|
|
sc = device_get_softc(dev);
|
|
unit = device_get_unit(dev);
|
|
|
|
mtx_init(&sc->dc_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
|
|
MTX_DEF | MTX_RECURSE);
|
|
#ifndef BURN_BRIDGES
|
|
/*
|
|
* Handle power management nonsense.
|
|
*/
|
|
dc_acpi(dev);
|
|
#endif
|
|
/*
|
|
* Map control/status registers.
|
|
*/
|
|
pci_enable_busmaster(dev);
|
|
|
|
rid = DC_RID;
|
|
sc->dc_res = bus_alloc_resource_any(dev, DC_RES, &rid, RF_ACTIVE);
|
|
|
|
if (sc->dc_res == NULL) {
|
|
printf("dc%d: couldn't map ports/memory\n", unit);
|
|
error = ENXIO;
|
|
goto fail;
|
|
}
|
|
|
|
sc->dc_btag = rman_get_bustag(sc->dc_res);
|
|
sc->dc_bhandle = rman_get_bushandle(sc->dc_res);
|
|
|
|
/* Allocate interrupt. */
|
|
rid = 0;
|
|
sc->dc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
|
|
RF_SHAREABLE | RF_ACTIVE);
|
|
|
|
if (sc->dc_irq == NULL) {
|
|
printf("dc%d: couldn't map interrupt\n", unit);
|
|
error = ENXIO;
|
|
goto fail;
|
|
}
|
|
|
|
/* Need this info to decide on a chip type. */
|
|
sc->dc_info = dc_devtype(dev);
|
|
revision = pci_read_config(dev, DC_PCI_CFRV, 4) & 0x000000FF;
|
|
|
|
/* Get the eeprom width, but PNIC and XIRCOM have diff eeprom */
|
|
if (sc->dc_info->dc_did != DC_DEVICEID_82C168 &&
|
|
sc->dc_info->dc_did != DC_DEVICEID_X3201)
|
|
dc_eeprom_width(sc);
|
|
|
|
switch (sc->dc_info->dc_did) {
|
|
case DC_DEVICEID_21143:
|
|
sc->dc_type = DC_TYPE_21143;
|
|
sc->dc_flags |= DC_TX_POLL | DC_TX_USE_TX_INTR;
|
|
sc->dc_flags |= DC_REDUCED_MII_POLL;
|
|
/* Save EEPROM contents so we can parse them later. */
|
|
dc_read_srom(sc, sc->dc_romwidth);
|
|
break;
|
|
case DC_DEVICEID_DM9009:
|
|
case DC_DEVICEID_DM9100:
|
|
case DC_DEVICEID_DM9102:
|
|
sc->dc_type = DC_TYPE_DM9102;
|
|
sc->dc_flags |= DC_TX_COALESCE | DC_TX_INTR_ALWAYS;
|
|
sc->dc_flags |= DC_REDUCED_MII_POLL | DC_TX_STORENFWD;
|
|
sc->dc_flags |= DC_TX_ALIGN;
|
|
sc->dc_pmode = DC_PMODE_MII;
|
|
/* Increase the latency timer value. */
|
|
command = pci_read_config(dev, DC_PCI_CFLT, 4);
|
|
command &= 0xFFFF00FF;
|
|
command |= 0x00008000;
|
|
pci_write_config(dev, DC_PCI_CFLT, command, 4);
|
|
break;
|
|
case DC_DEVICEID_AL981:
|
|
sc->dc_type = DC_TYPE_AL981;
|
|
sc->dc_flags |= DC_TX_USE_TX_INTR;
|
|
sc->dc_flags |= DC_TX_ADMTEK_WAR;
|
|
sc->dc_pmode = DC_PMODE_MII;
|
|
dc_read_srom(sc, sc->dc_romwidth);
|
|
break;
|
|
case DC_DEVICEID_AN985:
|
|
case DC_DEVICEID_ADM9511:
|
|
case DC_DEVICEID_ADM9513:
|
|
case DC_DEVICEID_FA511:
|
|
case DC_DEVICEID_FE2500:
|
|
case DC_DEVICEID_EN2242:
|
|
case DC_DEVICEID_HAWKING_PN672TX:
|
|
case DC_DEVICEID_3CSOHOB:
|
|
case DC_DEVICEID_MSMN120:
|
|
case DC_DEVICEID_MSMN130_FAKE: /* XXX avoid collision with PNIC*/
|
|
sc->dc_type = DC_TYPE_AN985;
|
|
sc->dc_flags |= DC_64BIT_HASH;
|
|
sc->dc_flags |= DC_TX_USE_TX_INTR;
|
|
sc->dc_flags |= DC_TX_ADMTEK_WAR;
|
|
sc->dc_pmode = DC_PMODE_MII;
|
|
/* Don't read SROM for - auto-loaded on reset */
|
|
break;
|
|
case DC_DEVICEID_98713:
|
|
case DC_DEVICEID_98713_CP:
|
|
if (revision < DC_REVISION_98713A) {
|
|
sc->dc_type = DC_TYPE_98713;
|
|
}
|
|
if (revision >= DC_REVISION_98713A) {
|
|
sc->dc_type = DC_TYPE_98713A;
|
|
sc->dc_flags |= DC_21143_NWAY;
|
|
}
|
|
sc->dc_flags |= DC_REDUCED_MII_POLL;
|
|
sc->dc_flags |= DC_TX_POLL | DC_TX_USE_TX_INTR;
|
|
break;
|
|
case DC_DEVICEID_987x5:
|
|
case DC_DEVICEID_EN1217:
|
|
/*
|
|
* Macronix MX98715AEC-C/D/E parts have only a
|
|
* 128-bit hash table. We need to deal with these
|
|
* in the same manner as the PNIC II so that we
|
|
* get the right number of bits out of the
|
|
* CRC routine.
|
|
*/
|
|
if (revision >= DC_REVISION_98715AEC_C &&
|
|
revision < DC_REVISION_98725)
|
|
sc->dc_flags |= DC_128BIT_HASH;
|
|
sc->dc_type = DC_TYPE_987x5;
|
|
sc->dc_flags |= DC_TX_POLL | DC_TX_USE_TX_INTR;
|
|
sc->dc_flags |= DC_REDUCED_MII_POLL | DC_21143_NWAY;
|
|
break;
|
|
case DC_DEVICEID_98727:
|
|
sc->dc_type = DC_TYPE_987x5;
|
|
sc->dc_flags |= DC_TX_POLL | DC_TX_USE_TX_INTR;
|
|
sc->dc_flags |= DC_REDUCED_MII_POLL | DC_21143_NWAY;
|
|
break;
|
|
case DC_DEVICEID_82C115:
|
|
sc->dc_type = DC_TYPE_PNICII;
|
|
sc->dc_flags |= DC_TX_POLL | DC_TX_USE_TX_INTR | DC_128BIT_HASH;
|
|
sc->dc_flags |= DC_REDUCED_MII_POLL | DC_21143_NWAY;
|
|
break;
|
|
case DC_DEVICEID_82C168:
|
|
sc->dc_type = DC_TYPE_PNIC;
|
|
sc->dc_flags |= DC_TX_STORENFWD | DC_TX_INTR_ALWAYS;
|
|
sc->dc_flags |= DC_PNIC_RX_BUG_WAR;
|
|
sc->dc_pnic_rx_buf = malloc(DC_RXLEN * 5, M_DEVBUF, M_NOWAIT);
|
|
if (revision < DC_REVISION_82C169)
|
|
sc->dc_pmode = DC_PMODE_SYM;
|
|
break;
|
|
case DC_DEVICEID_AX88140A:
|
|
sc->dc_type = DC_TYPE_ASIX;
|
|
sc->dc_flags |= DC_TX_USE_TX_INTR | DC_TX_INTR_FIRSTFRAG;
|
|
sc->dc_flags |= DC_REDUCED_MII_POLL;
|
|
sc->dc_pmode = DC_PMODE_MII;
|
|
break;
|
|
case DC_DEVICEID_X3201:
|
|
sc->dc_type = DC_TYPE_XIRCOM;
|
|
sc->dc_flags |= DC_TX_INTR_ALWAYS | DC_TX_COALESCE |
|
|
DC_TX_ALIGN;
|
|
/*
|
|
* We don't actually need to coalesce, but we're doing
|
|
* it to obtain a double word aligned buffer.
|
|
* The DC_TX_COALESCE flag is required.
|
|
*/
|
|
sc->dc_pmode = DC_PMODE_MII;
|
|
break;
|
|
case DC_DEVICEID_RS7112:
|
|
sc->dc_type = DC_TYPE_CONEXANT;
|
|
sc->dc_flags |= DC_TX_INTR_ALWAYS;
|
|
sc->dc_flags |= DC_REDUCED_MII_POLL;
|
|
sc->dc_pmode = DC_PMODE_MII;
|
|
dc_read_srom(sc, sc->dc_romwidth);
|
|
break;
|
|
default:
|
|
printf("dc%d: unknown device: %x\n", sc->dc_unit,
|
|
sc->dc_info->dc_did);
|
|
break;
|
|
}
|
|
|
|
/* Save the cache line size. */
|
|
if (DC_IS_DAVICOM(sc))
|
|
sc->dc_cachesize = 0;
|
|
else
|
|
sc->dc_cachesize = pci_read_config(dev,
|
|
DC_PCI_CFLT, 4) & 0xFF;
|
|
|
|
/* Reset the adapter. */
|
|
dc_reset(sc);
|
|
|
|
/* Take 21143 out of snooze mode */
|
|
if (DC_IS_INTEL(sc) || DC_IS_XIRCOM(sc)) {
|
|
command = pci_read_config(dev, DC_PCI_CFDD, 4);
|
|
command &= ~(DC_CFDD_SNOOZE_MODE | DC_CFDD_SLEEP_MODE);
|
|
pci_write_config(dev, DC_PCI_CFDD, command, 4);
|
|
}
|
|
|
|
/*
|
|
* Try to learn something about the supported media.
|
|
* We know that ASIX and ADMtek and Davicom devices
|
|
* will *always* be using MII media, so that's a no-brainer.
|
|
* The tricky ones are the Macronix/PNIC II and the
|
|
* Intel 21143.
|
|
*/
|
|
if (DC_IS_INTEL(sc))
|
|
dc_parse_21143_srom(sc);
|
|
else if (DC_IS_MACRONIX(sc) || DC_IS_PNICII(sc)) {
|
|
if (sc->dc_type == DC_TYPE_98713)
|
|
sc->dc_pmode = DC_PMODE_MII;
|
|
else
|
|
sc->dc_pmode = DC_PMODE_SYM;
|
|
} else if (!sc->dc_pmode)
|
|
sc->dc_pmode = DC_PMODE_MII;
|
|
|
|
/*
|
|
* Get station address from the EEPROM.
|
|
*/
|
|
switch(sc->dc_type) {
|
|
case DC_TYPE_98713:
|
|
case DC_TYPE_98713A:
|
|
case DC_TYPE_987x5:
|
|
case DC_TYPE_PNICII:
|
|
dc_read_eeprom(sc, (caddr_t)&mac_offset,
|
|
(DC_EE_NODEADDR_OFFSET / 2), 1, 0);
|
|
dc_read_eeprom(sc, (caddr_t)&eaddr, (mac_offset / 2), 3, 0);
|
|
break;
|
|
case DC_TYPE_PNIC:
|
|
dc_read_eeprom(sc, (caddr_t)&eaddr, 0, 3, 1);
|
|
break;
|
|
case DC_TYPE_DM9102:
|
|
dc_read_eeprom(sc, (caddr_t)&eaddr, DC_EE_NODEADDR, 3, 0);
|
|
#ifdef __sparc64__
|
|
/*
|
|
* If this is an onboard dc(4) the station address read from
|
|
* the EEPROM is all zero and we have to get it from the fcode.
|
|
*/
|
|
for (i = 0; i < ETHER_ADDR_LEN; i++)
|
|
if (eaddr[i] != 0x00)
|
|
break;
|
|
if (i >= ETHER_ADDR_LEN && OF_getetheraddr2(dev, eaddr) == -1)
|
|
OF_getetheraddr(dev, eaddr);
|
|
#endif
|
|
break;
|
|
case DC_TYPE_21143:
|
|
case DC_TYPE_ASIX:
|
|
dc_read_eeprom(sc, (caddr_t)&eaddr, DC_EE_NODEADDR, 3, 0);
|
|
break;
|
|
case DC_TYPE_AL981:
|
|
case DC_TYPE_AN985:
|
|
*(u_int32_t *)(&eaddr[0]) = CSR_READ_4(sc, DC_AL_PAR0);
|
|
*(u_int16_t *)(&eaddr[4]) = CSR_READ_4(sc, DC_AL_PAR1);
|
|
break;
|
|
case DC_TYPE_CONEXANT:
|
|
bcopy(sc->dc_srom + DC_CONEXANT_EE_NODEADDR, &eaddr,
|
|
ETHER_ADDR_LEN);
|
|
break;
|
|
case DC_TYPE_XIRCOM:
|
|
/* The MAC comes from the CIS. */
|
|
mac = pci_get_ether(dev);
|
|
if (!mac) {
|
|
device_printf(dev, "No station address in CIS!\n");
|
|
error = ENXIO;
|
|
goto fail;
|
|
}
|
|
bcopy(mac, eaddr, ETHER_ADDR_LEN);
|
|
break;
|
|
default:
|
|
dc_read_eeprom(sc, (caddr_t)&eaddr, DC_EE_NODEADDR, 3, 0);
|
|
break;
|
|
}
|
|
|
|
sc->dc_unit = unit;
|
|
bcopy(eaddr, &sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
|
|
|
|
/* Allocate a busdma tag and DMA safe memory for TX/RX descriptors. */
|
|
error = bus_dma_tag_create(NULL, PAGE_SIZE, 0, BUS_SPACE_MAXADDR_32BIT,
|
|
BUS_SPACE_MAXADDR, NULL, NULL, sizeof(struct dc_list_data), 1,
|
|
sizeof(struct dc_list_data), 0, NULL, NULL, &sc->dc_ltag);
|
|
if (error) {
|
|
printf("dc%d: failed to allocate busdma tag\n", unit);
|
|
error = ENXIO;
|
|
goto fail;
|
|
}
|
|
error = bus_dmamem_alloc(sc->dc_ltag, (void **)&sc->dc_ldata,
|
|
BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sc->dc_lmap);
|
|
if (error) {
|
|
printf("dc%d: failed to allocate DMA safe memory\n", unit);
|
|
error = ENXIO;
|
|
goto fail;
|
|
}
|
|
error = bus_dmamap_load(sc->dc_ltag, sc->dc_lmap, sc->dc_ldata,
|
|
sizeof(struct dc_list_data), dc_dma_map_addr, &sc->dc_laddr,
|
|
BUS_DMA_NOWAIT);
|
|
if (error) {
|
|
printf("dc%d: cannot get address of the descriptors\n", unit);
|
|
error = ENXIO;
|
|
goto fail;
|
|
}
|
|
|
|
/*
|
|
* Allocate a busdma tag and DMA safe memory for the multicast
|
|
* setup frame.
|
|
*/
|
|
error = bus_dma_tag_create(NULL, PAGE_SIZE, 0, BUS_SPACE_MAXADDR_32BIT,
|
|
BUS_SPACE_MAXADDR, NULL, NULL, DC_SFRAME_LEN + DC_MIN_FRAMELEN, 1,
|
|
DC_SFRAME_LEN + DC_MIN_FRAMELEN, 0, NULL, NULL, &sc->dc_stag);
|
|
if (error) {
|
|
printf("dc%d: failed to allocate busdma tag\n", unit);
|
|
error = ENXIO;
|
|
goto fail;
|
|
}
|
|
error = bus_dmamem_alloc(sc->dc_stag, (void **)&sc->dc_cdata.dc_sbuf,
|
|
BUS_DMA_NOWAIT, &sc->dc_smap);
|
|
if (error) {
|
|
printf("dc%d: failed to allocate DMA safe memory\n", unit);
|
|
error = ENXIO;
|
|
goto fail;
|
|
}
|
|
error = bus_dmamap_load(sc->dc_stag, sc->dc_smap, sc->dc_cdata.dc_sbuf,
|
|
DC_SFRAME_LEN, dc_dma_map_addr, &sc->dc_saddr, BUS_DMA_NOWAIT);
|
|
if (error) {
|
|
printf("dc%d: cannot get address of the descriptors\n", unit);
|
|
error = ENXIO;
|
|
goto fail;
|
|
}
|
|
|
|
/* Allocate a busdma tag for mbufs. */
|
|
error = bus_dma_tag_create(NULL, PAGE_SIZE, 0, BUS_SPACE_MAXADDR_32BIT,
|
|
BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES * DC_TX_LIST_CNT,
|
|
DC_TX_LIST_CNT, MCLBYTES, 0, NULL, NULL, &sc->dc_mtag);
|
|
if (error) {
|
|
printf("dc%d: failed to allocate busdma tag\n", unit);
|
|
error = ENXIO;
|
|
goto fail;
|
|
}
|
|
|
|
/* Create the TX/RX busdma maps. */
|
|
for (i = 0; i < DC_TX_LIST_CNT; i++) {
|
|
error = bus_dmamap_create(sc->dc_mtag, 0,
|
|
&sc->dc_cdata.dc_tx_map[i]);
|
|
if (error) {
|
|
printf("dc%d: failed to init TX ring\n", unit);
|
|
error = ENXIO;
|
|
goto fail;
|
|
}
|
|
}
|
|
for (i = 0; i < DC_RX_LIST_CNT; i++) {
|
|
error = bus_dmamap_create(sc->dc_mtag, 0,
|
|
&sc->dc_cdata.dc_rx_map[i]);
|
|
if (error) {
|
|
printf("dc%d: failed to init RX ring\n", unit);
|
|
error = ENXIO;
|
|
goto fail;
|
|
}
|
|
}
|
|
error = bus_dmamap_create(sc->dc_mtag, 0, &sc->dc_sparemap);
|
|
if (error) {
|
|
printf("dc%d: failed to init RX ring\n", unit);
|
|
error = ENXIO;
|
|
goto fail;
|
|
}
|
|
|
|
ifp = &sc->arpcom.ac_if;
|
|
ifp->if_softc = sc;
|
|
if_initname(ifp, device_get_name(dev), device_get_unit(dev));
|
|
/* XXX: bleah, MTU gets overwritten in ether_ifattach() */
|
|
ifp->if_mtu = ETHERMTU;
|
|
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
|
|
ifp->if_ioctl = dc_ioctl;
|
|
ifp->if_start = dc_start;
|
|
ifp->if_watchdog = dc_watchdog;
|
|
ifp->if_init = dc_init;
|
|
ifp->if_baudrate = 10000000;
|
|
ifp->if_snd.ifq_maxlen = DC_TX_LIST_CNT - 1;
|
|
|
|
/*
|
|
* Do MII setup. If this is a 21143, check for a PHY on the
|
|
* MII bus after applying any necessary fixups to twiddle the
|
|
* GPIO bits. If we don't end up finding a PHY, restore the
|
|
* old selection (SIA only or SIA/SYM) and attach the dcphy
|
|
* driver instead.
|
|
*/
|
|
if (DC_IS_INTEL(sc)) {
|
|
dc_apply_fixup(sc, IFM_AUTO);
|
|
tmp = sc->dc_pmode;
|
|
sc->dc_pmode = DC_PMODE_MII;
|
|
}
|
|
|
|
error = mii_phy_probe(dev, &sc->dc_miibus,
|
|
dc_ifmedia_upd, dc_ifmedia_sts);
|
|
|
|
if (error && DC_IS_INTEL(sc)) {
|
|
sc->dc_pmode = tmp;
|
|
if (sc->dc_pmode != DC_PMODE_SIA)
|
|
sc->dc_pmode = DC_PMODE_SYM;
|
|
sc->dc_flags |= DC_21143_NWAY;
|
|
mii_phy_probe(dev, &sc->dc_miibus,
|
|
dc_ifmedia_upd, dc_ifmedia_sts);
|
|
/*
|
|
* For non-MII cards, we need to have the 21143
|
|
* drive the LEDs. Except there are some systems
|
|
* like the NEC VersaPro NoteBook PC which have no
|
|
* LEDs, and twiddling these bits has adverse effects
|
|
* on them. (I.e. you suddenly can't get a link.)
|
|
*/
|
|
if (pci_read_config(dev, DC_PCI_CSID, 4) != 0x80281033)
|
|
sc->dc_flags |= DC_TULIP_LEDS;
|
|
error = 0;
|
|
}
|
|
|
|
if (error) {
|
|
printf("dc%d: MII without any PHY!\n", sc->dc_unit);
|
|
goto fail;
|
|
}
|
|
|
|
if (DC_IS_XIRCOM(sc)) {
|
|
/*
|
|
* setup General Purpose Port mode and data so the tulip
|
|
* can talk to the MII.
|
|
*/
|
|
CSR_WRITE_4(sc, DC_SIAGP, DC_SIAGP_WRITE_EN | DC_SIAGP_INT1_EN |
|
|
DC_SIAGP_MD_GP2_OUTPUT | DC_SIAGP_MD_GP0_OUTPUT);
|
|
DELAY(10);
|
|
CSR_WRITE_4(sc, DC_SIAGP, DC_SIAGP_INT1_EN |
|
|
DC_SIAGP_MD_GP2_OUTPUT | DC_SIAGP_MD_GP0_OUTPUT);
|
|
DELAY(10);
|
|
}
|
|
|
|
if (DC_IS_ADMTEK(sc)) {
|
|
/*
|
|
* Set automatic TX underrun recovery for the ADMtek chips
|
|
*/
|
|
DC_SETBIT(sc, DC_AL_CR, DC_AL_CR_ATUR);
|
|
}
|
|
|
|
/*
|
|
* Tell the upper layer(s) we support long frames.
|
|
*/
|
|
ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header);
|
|
ifp->if_capabilities |= IFCAP_VLAN_MTU;
|
|
|
|
callout_init(&sc->dc_stat_ch, IS_MPSAFE ? CALLOUT_MPSAFE : 0);
|
|
|
|
#ifdef SRM_MEDIA
|
|
sc->dc_srm_media = 0;
|
|
|
|
/* Remember the SRM console media setting */
|
|
if (DC_IS_INTEL(sc)) {
|
|
command = pci_read_config(dev, DC_PCI_CFDD, 4);
|
|
command &= ~(DC_CFDD_SNOOZE_MODE | DC_CFDD_SLEEP_MODE);
|
|
switch ((command >> 8) & 0xff) {
|
|
case 3:
|
|
sc->dc_srm_media = IFM_10_T;
|
|
break;
|
|
case 4:
|
|
sc->dc_srm_media = IFM_10_T | IFM_FDX;
|
|
break;
|
|
case 5:
|
|
sc->dc_srm_media = IFM_100_TX;
|
|
break;
|
|
case 6:
|
|
sc->dc_srm_media = IFM_100_TX | IFM_FDX;
|
|
break;
|
|
}
|
|
if (sc->dc_srm_media)
|
|
sc->dc_srm_media |= IFM_ACTIVE | IFM_ETHER;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Call MI attach routine.
|
|
*/
|
|
ether_ifattach(ifp, eaddr);
|
|
|
|
/* Hook interrupt last to avoid having to lock softc */
|
|
error = bus_setup_intr(dev, sc->dc_irq, INTR_TYPE_NET |
|
|
(IS_MPSAFE ? INTR_MPSAFE : 0),
|
|
dc_intr, sc, &sc->dc_intrhand);
|
|
|
|
if (error) {
|
|
printf("dc%d: couldn't set up irq\n", unit);
|
|
ether_ifdetach(ifp);
|
|
goto fail;
|
|
}
|
|
|
|
fail:
|
|
if (error)
|
|
dc_detach(dev);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Shutdown hardware and free up resources. This can be called any
|
|
* time after the mutex has been initialized. It is called in both
|
|
* the error case in attach and the normal detach case so it needs
|
|
* to be careful about only freeing resources that have actually been
|
|
* allocated.
|
|
*/
|
|
static int
|
|
dc_detach(device_t dev)
|
|
{
|
|
struct dc_softc *sc;
|
|
struct ifnet *ifp;
|
|
struct dc_mediainfo *m;
|
|
int i;
|
|
|
|
sc = device_get_softc(dev);
|
|
KASSERT(mtx_initialized(&sc->dc_mtx), ("dc mutex not initialized"));
|
|
DC_LOCK(sc);
|
|
|
|
ifp = &sc->arpcom.ac_if;
|
|
|
|
/* These should only be active if attach succeeded */
|
|
if (device_is_attached(dev)) {
|
|
dc_stop(sc);
|
|
ether_ifdetach(ifp);
|
|
}
|
|
if (sc->dc_miibus)
|
|
device_delete_child(dev, sc->dc_miibus);
|
|
bus_generic_detach(dev);
|
|
|
|
if (sc->dc_intrhand)
|
|
bus_teardown_intr(dev, sc->dc_irq, sc->dc_intrhand);
|
|
if (sc->dc_irq)
|
|
bus_release_resource(dev, SYS_RES_IRQ, 0, sc->dc_irq);
|
|
if (sc->dc_res)
|
|
bus_release_resource(dev, DC_RES, DC_RID, sc->dc_res);
|
|
|
|
if (sc->dc_cdata.dc_sbuf != NULL)
|
|
bus_dmamem_free(sc->dc_stag, sc->dc_cdata.dc_sbuf, sc->dc_smap);
|
|
if (sc->dc_ldata != NULL)
|
|
bus_dmamem_free(sc->dc_ltag, sc->dc_ldata, sc->dc_lmap);
|
|
for (i = 0; i < DC_TX_LIST_CNT; i++)
|
|
bus_dmamap_destroy(sc->dc_mtag, sc->dc_cdata.dc_tx_map[i]);
|
|
for (i = 0; i < DC_RX_LIST_CNT; i++)
|
|
bus_dmamap_destroy(sc->dc_mtag, sc->dc_cdata.dc_rx_map[i]);
|
|
bus_dmamap_destroy(sc->dc_mtag, sc->dc_sparemap);
|
|
if (sc->dc_stag)
|
|
bus_dma_tag_destroy(sc->dc_stag);
|
|
if (sc->dc_mtag)
|
|
bus_dma_tag_destroy(sc->dc_mtag);
|
|
if (sc->dc_ltag)
|
|
bus_dma_tag_destroy(sc->dc_ltag);
|
|
|
|
free(sc->dc_pnic_rx_buf, M_DEVBUF);
|
|
|
|
while (sc->dc_mi != NULL) {
|
|
m = sc->dc_mi->dc_next;
|
|
free(sc->dc_mi, M_DEVBUF);
|
|
sc->dc_mi = m;
|
|
}
|
|
free(sc->dc_srom, M_DEVBUF);
|
|
|
|
DC_UNLOCK(sc);
|
|
mtx_destroy(&sc->dc_mtx);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Initialize the transmit descriptors.
|
|
*/
|
|
static int
|
|
dc_list_tx_init(struct dc_softc *sc)
|
|
{
|
|
struct dc_chain_data *cd;
|
|
struct dc_list_data *ld;
|
|
int i, nexti;
|
|
|
|
cd = &sc->dc_cdata;
|
|
ld = sc->dc_ldata;
|
|
for (i = 0; i < DC_TX_LIST_CNT; i++) {
|
|
if (i == DC_TX_LIST_CNT - 1)
|
|
nexti = 0;
|
|
else
|
|
nexti = i + 1;
|
|
ld->dc_tx_list[i].dc_next = htole32(DC_TXDESC(sc, nexti));
|
|
cd->dc_tx_chain[i] = NULL;
|
|
ld->dc_tx_list[i].dc_data = 0;
|
|
ld->dc_tx_list[i].dc_ctl = 0;
|
|
}
|
|
|
|
cd->dc_tx_prod = cd->dc_tx_cons = cd->dc_tx_cnt = 0;
|
|
bus_dmamap_sync(sc->dc_ltag, sc->dc_lmap,
|
|
BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
|
|
return (0);
|
|
}
|
|
|
|
|
|
/*
|
|
* Initialize the RX descriptors and allocate mbufs for them. Note that
|
|
* we arrange the descriptors in a closed ring, so that the last descriptor
|
|
* points back to the first.
|
|
*/
|
|
static int
|
|
dc_list_rx_init(struct dc_softc *sc)
|
|
{
|
|
struct dc_chain_data *cd;
|
|
struct dc_list_data *ld;
|
|
int i, nexti;
|
|
|
|
cd = &sc->dc_cdata;
|
|
ld = sc->dc_ldata;
|
|
|
|
for (i = 0; i < DC_RX_LIST_CNT; i++) {
|
|
if (dc_newbuf(sc, i, 1) != 0)
|
|
return (ENOBUFS);
|
|
if (i == DC_RX_LIST_CNT - 1)
|
|
nexti = 0;
|
|
else
|
|
nexti = i + 1;
|
|
ld->dc_rx_list[i].dc_next = htole32(DC_RXDESC(sc, nexti));
|
|
}
|
|
|
|
cd->dc_rx_prod = 0;
|
|
bus_dmamap_sync(sc->dc_ltag, sc->dc_lmap,
|
|
BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
dc_dma_map_rxbuf(arg, segs, nseg, mapsize, error)
|
|
void *arg;
|
|
bus_dma_segment_t *segs;
|
|
int nseg;
|
|
bus_size_t mapsize;
|
|
int error;
|
|
{
|
|
struct dc_softc *sc;
|
|
struct dc_desc *c;
|
|
|
|
sc = arg;
|
|
c = &sc->dc_ldata->dc_rx_list[sc->dc_cdata.dc_rx_cur];
|
|
if (error) {
|
|
sc->dc_cdata.dc_rx_err = error;
|
|
return;
|
|
}
|
|
|
|
KASSERT(nseg == 1, ("wrong number of segments, should be 1"));
|
|
sc->dc_cdata.dc_rx_err = 0;
|
|
c->dc_data = htole32(segs->ds_addr);
|
|
}
|
|
|
|
/*
|
|
* Initialize an RX descriptor and attach an MBUF cluster.
|
|
*/
|
|
static int
|
|
dc_newbuf(struct dc_softc *sc, int i, int alloc)
|
|
{
|
|
struct mbuf *m_new;
|
|
bus_dmamap_t tmp;
|
|
int error;
|
|
|
|
if (alloc) {
|
|
m_new = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
|
|
if (m_new == NULL)
|
|
return (ENOBUFS);
|
|
} else {
|
|
m_new = sc->dc_cdata.dc_rx_chain[i];
|
|
m_new->m_data = m_new->m_ext.ext_buf;
|
|
}
|
|
m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
|
|
m_adj(m_new, sizeof(u_int64_t));
|
|
|
|
/*
|
|
* If this is a PNIC chip, zero the buffer. This is part
|
|
* of the workaround for the receive bug in the 82c168 and
|
|
* 82c169 chips.
|
|
*/
|
|
if (sc->dc_flags & DC_PNIC_RX_BUG_WAR)
|
|
bzero(mtod(m_new, char *), m_new->m_len);
|
|
|
|
/* No need to remap the mbuf if we're reusing it. */
|
|
if (alloc) {
|
|
sc->dc_cdata.dc_rx_cur = i;
|
|
error = bus_dmamap_load_mbuf(sc->dc_mtag, sc->dc_sparemap,
|
|
m_new, dc_dma_map_rxbuf, sc, 0);
|
|
if (error) {
|
|
m_freem(m_new);
|
|
return (error);
|
|
}
|
|
if (sc->dc_cdata.dc_rx_err != 0) {
|
|
m_freem(m_new);
|
|
return (sc->dc_cdata.dc_rx_err);
|
|
}
|
|
bus_dmamap_unload(sc->dc_mtag, sc->dc_cdata.dc_rx_map[i]);
|
|
tmp = sc->dc_cdata.dc_rx_map[i];
|
|
sc->dc_cdata.dc_rx_map[i] = sc->dc_sparemap;
|
|
sc->dc_sparemap = tmp;
|
|
sc->dc_cdata.dc_rx_chain[i] = m_new;
|
|
}
|
|
|
|
sc->dc_ldata->dc_rx_list[i].dc_ctl = htole32(DC_RXCTL_RLINK | DC_RXLEN);
|
|
sc->dc_ldata->dc_rx_list[i].dc_status = htole32(DC_RXSTAT_OWN);
|
|
bus_dmamap_sync(sc->dc_mtag, sc->dc_cdata.dc_rx_map[i],
|
|
BUS_DMASYNC_PREREAD);
|
|
bus_dmamap_sync(sc->dc_ltag, sc->dc_lmap,
|
|
BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Grrrrr.
|
|
* The PNIC chip has a terrible bug in it that manifests itself during
|
|
* periods of heavy activity. The exact mode of failure if difficult to
|
|
* pinpoint: sometimes it only happens in promiscuous mode, sometimes it
|
|
* will happen on slow machines. The bug is that sometimes instead of
|
|
* uploading one complete frame during reception, it uploads what looks
|
|
* like the entire contents of its FIFO memory. The frame we want is at
|
|
* the end of the whole mess, but we never know exactly how much data has
|
|
* been uploaded, so salvaging the frame is hard.
|
|
*
|
|
* There is only one way to do it reliably, and it's disgusting.
|
|
* Here's what we know:
|
|
*
|
|
* - We know there will always be somewhere between one and three extra
|
|
* descriptors uploaded.
|
|
*
|
|
* - We know the desired received frame will always be at the end of the
|
|
* total data upload.
|
|
*
|
|
* - We know the size of the desired received frame because it will be
|
|
* provided in the length field of the status word in the last descriptor.
|
|
*
|
|
* Here's what we do:
|
|
*
|
|
* - When we allocate buffers for the receive ring, we bzero() them.
|
|
* This means that we know that the buffer contents should be all
|
|
* zeros, except for data uploaded by the chip.
|
|
*
|
|
* - We also force the PNIC chip to upload frames that include the
|
|
* ethernet CRC at the end.
|
|
*
|
|
* - We gather all of the bogus frame data into a single buffer.
|
|
*
|
|
* - We then position a pointer at the end of this buffer and scan
|
|
* backwards until we encounter the first non-zero byte of data.
|
|
* This is the end of the received frame. We know we will encounter
|
|
* some data at the end of the frame because the CRC will always be
|
|
* there, so even if the sender transmits a packet of all zeros,
|
|
* we won't be fooled.
|
|
*
|
|
* - We know the size of the actual received frame, so we subtract
|
|
* that value from the current pointer location. This brings us
|
|
* to the start of the actual received packet.
|
|
*
|
|
* - We copy this into an mbuf and pass it on, along with the actual
|
|
* frame length.
|
|
*
|
|
* The performance hit is tremendous, but it beats dropping frames all
|
|
* the time.
|
|
*/
|
|
|
|
#define DC_WHOLEFRAME (DC_RXSTAT_FIRSTFRAG | DC_RXSTAT_LASTFRAG)
|
|
static void
|
|
dc_pnic_rx_bug_war(struct dc_softc *sc, int idx)
|
|
{
|
|
struct dc_desc *cur_rx;
|
|
struct dc_desc *c = NULL;
|
|
struct mbuf *m = NULL;
|
|
unsigned char *ptr;
|
|
int i, total_len;
|
|
u_int32_t rxstat = 0;
|
|
|
|
i = sc->dc_pnic_rx_bug_save;
|
|
cur_rx = &sc->dc_ldata->dc_rx_list[idx];
|
|
ptr = sc->dc_pnic_rx_buf;
|
|
bzero(ptr, DC_RXLEN * 5);
|
|
|
|
/* Copy all the bytes from the bogus buffers. */
|
|
while (1) {
|
|
c = &sc->dc_ldata->dc_rx_list[i];
|
|
rxstat = le32toh(c->dc_status);
|
|
m = sc->dc_cdata.dc_rx_chain[i];
|
|
bcopy(mtod(m, char *), ptr, DC_RXLEN);
|
|
ptr += DC_RXLEN;
|
|
/* If this is the last buffer, break out. */
|
|
if (i == idx || rxstat & DC_RXSTAT_LASTFRAG)
|
|
break;
|
|
dc_newbuf(sc, i, 0);
|
|
DC_INC(i, DC_RX_LIST_CNT);
|
|
}
|
|
|
|
/* Find the length of the actual receive frame. */
|
|
total_len = DC_RXBYTES(rxstat);
|
|
|
|
/* Scan backwards until we hit a non-zero byte. */
|
|
while (*ptr == 0x00)
|
|
ptr--;
|
|
|
|
/* Round off. */
|
|
if ((uintptr_t)(ptr) & 0x3)
|
|
ptr -= 1;
|
|
|
|
/* Now find the start of the frame. */
|
|
ptr -= total_len;
|
|
if (ptr < sc->dc_pnic_rx_buf)
|
|
ptr = sc->dc_pnic_rx_buf;
|
|
|
|
/*
|
|
* Now copy the salvaged frame to the last mbuf and fake up
|
|
* the status word to make it look like a successful
|
|
* frame reception.
|
|
*/
|
|
dc_newbuf(sc, i, 0);
|
|
bcopy(ptr, mtod(m, char *), total_len);
|
|
cur_rx->dc_status = htole32(rxstat | DC_RXSTAT_FIRSTFRAG);
|
|
}
|
|
|
|
/*
|
|
* This routine searches the RX ring for dirty descriptors in the
|
|
* event that the rxeof routine falls out of sync with the chip's
|
|
* current descriptor pointer. This may happen sometimes as a result
|
|
* of a "no RX buffer available" condition that happens when the chip
|
|
* consumes all of the RX buffers before the driver has a chance to
|
|
* process the RX ring. This routine may need to be called more than
|
|
* once to bring the driver back in sync with the chip, however we
|
|
* should still be getting RX DONE interrupts to drive the search
|
|
* for new packets in the RX ring, so we should catch up eventually.
|
|
*/
|
|
static int
|
|
dc_rx_resync(struct dc_softc *sc)
|
|
{
|
|
struct dc_desc *cur_rx;
|
|
int i, pos;
|
|
|
|
pos = sc->dc_cdata.dc_rx_prod;
|
|
|
|
for (i = 0; i < DC_RX_LIST_CNT; i++) {
|
|
cur_rx = &sc->dc_ldata->dc_rx_list[pos];
|
|
if (!(le32toh(cur_rx->dc_status) & DC_RXSTAT_OWN))
|
|
break;
|
|
DC_INC(pos, DC_RX_LIST_CNT);
|
|
}
|
|
|
|
/* If the ring really is empty, then just return. */
|
|
if (i == DC_RX_LIST_CNT)
|
|
return (0);
|
|
|
|
/* We've fallen behing the chip: catch it. */
|
|
sc->dc_cdata.dc_rx_prod = pos;
|
|
|
|
return (EAGAIN);
|
|
}
|
|
|
|
/*
|
|
* A frame has been uploaded: pass the resulting mbuf chain up to
|
|
* the higher level protocols.
|
|
*/
|
|
static void
|
|
dc_rxeof(struct dc_softc *sc)
|
|
{
|
|
struct mbuf *m;
|
|
struct ifnet *ifp;
|
|
struct dc_desc *cur_rx;
|
|
int i, total_len = 0;
|
|
u_int32_t rxstat;
|
|
|
|
DC_LOCK_ASSERT(sc);
|
|
|
|
ifp = &sc->arpcom.ac_if;
|
|
i = sc->dc_cdata.dc_rx_prod;
|
|
|
|
bus_dmamap_sync(sc->dc_ltag, sc->dc_lmap, BUS_DMASYNC_POSTREAD);
|
|
while (!(le32toh(sc->dc_ldata->dc_rx_list[i].dc_status) &
|
|
DC_RXSTAT_OWN)) {
|
|
#ifdef DEVICE_POLLING
|
|
if (ifp->if_flags & IFF_POLLING) {
|
|
if (sc->rxcycles <= 0)
|
|
break;
|
|
sc->rxcycles--;
|
|
}
|
|
#endif
|
|
cur_rx = &sc->dc_ldata->dc_rx_list[i];
|
|
rxstat = le32toh(cur_rx->dc_status);
|
|
m = sc->dc_cdata.dc_rx_chain[i];
|
|
bus_dmamap_sync(sc->dc_mtag, sc->dc_cdata.dc_rx_map[i],
|
|
BUS_DMASYNC_POSTREAD);
|
|
total_len = DC_RXBYTES(rxstat);
|
|
|
|
if (sc->dc_flags & DC_PNIC_RX_BUG_WAR) {
|
|
if ((rxstat & DC_WHOLEFRAME) != DC_WHOLEFRAME) {
|
|
if (rxstat & DC_RXSTAT_FIRSTFRAG)
|
|
sc->dc_pnic_rx_bug_save = i;
|
|
if ((rxstat & DC_RXSTAT_LASTFRAG) == 0) {
|
|
DC_INC(i, DC_RX_LIST_CNT);
|
|
continue;
|
|
}
|
|
dc_pnic_rx_bug_war(sc, i);
|
|
rxstat = le32toh(cur_rx->dc_status);
|
|
total_len = DC_RXBYTES(rxstat);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* If an error occurs, update stats, clear the
|
|
* status word and leave the mbuf cluster in place:
|
|
* it should simply get re-used next time this descriptor
|
|
* comes up in the ring. However, don't report long
|
|
* frames as errors since they could be vlans.
|
|
*/
|
|
if ((rxstat & DC_RXSTAT_RXERR)) {
|
|
if (!(rxstat & DC_RXSTAT_GIANT) ||
|
|
(rxstat & (DC_RXSTAT_CRCERR | DC_RXSTAT_DRIBBLE |
|
|
DC_RXSTAT_MIIERE | DC_RXSTAT_COLLSEEN |
|
|
DC_RXSTAT_RUNT | DC_RXSTAT_DE))) {
|
|
ifp->if_ierrors++;
|
|
if (rxstat & DC_RXSTAT_COLLSEEN)
|
|
ifp->if_collisions++;
|
|
dc_newbuf(sc, i, 0);
|
|
if (rxstat & DC_RXSTAT_CRCERR) {
|
|
DC_INC(i, DC_RX_LIST_CNT);
|
|
continue;
|
|
} else {
|
|
dc_init(sc);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* No errors; receive the packet. */
|
|
total_len -= ETHER_CRC_LEN;
|
|
#ifdef __i386__
|
|
/*
|
|
* On the x86 we do not have alignment problems, so try to
|
|
* allocate a new buffer for the receive ring, and pass up
|
|
* the one where the packet is already, saving the expensive
|
|
* copy done in m_devget().
|
|
* If we are on an architecture with alignment problems, or
|
|
* if the allocation fails, then use m_devget and leave the
|
|
* existing buffer in the receive ring.
|
|
*/
|
|
if (dc_quick && dc_newbuf(sc, i, 1) == 0) {
|
|
m->m_pkthdr.rcvif = ifp;
|
|
m->m_pkthdr.len = m->m_len = total_len;
|
|
DC_INC(i, DC_RX_LIST_CNT);
|
|
} else
|
|
#endif
|
|
{
|
|
struct mbuf *m0;
|
|
|
|
m0 = m_devget(mtod(m, char *), total_len,
|
|
ETHER_ALIGN, ifp, NULL);
|
|
dc_newbuf(sc, i, 0);
|
|
DC_INC(i, DC_RX_LIST_CNT);
|
|
if (m0 == NULL) {
|
|
ifp->if_ierrors++;
|
|
continue;
|
|
}
|
|
m = m0;
|
|
}
|
|
|
|
ifp->if_ipackets++;
|
|
DC_UNLOCK(sc);
|
|
(*ifp->if_input)(ifp, m);
|
|
DC_LOCK(sc);
|
|
}
|
|
|
|
sc->dc_cdata.dc_rx_prod = i;
|
|
}
|
|
|
|
/*
|
|
* A frame was downloaded to the chip. It's safe for us to clean up
|
|
* the list buffers.
|
|
*/
|
|
|
|
static void
|
|
dc_txeof(struct dc_softc *sc)
|
|
{
|
|
struct dc_desc *cur_tx = NULL;
|
|
struct ifnet *ifp;
|
|
int idx;
|
|
u_int32_t ctl, txstat;
|
|
|
|
ifp = &sc->arpcom.ac_if;
|
|
|
|
/*
|
|
* Go through our tx list and free mbufs for those
|
|
* frames that have been transmitted.
|
|
*/
|
|
bus_dmamap_sync(sc->dc_ltag, sc->dc_lmap, BUS_DMASYNC_POSTREAD);
|
|
idx = sc->dc_cdata.dc_tx_cons;
|
|
while (idx != sc->dc_cdata.dc_tx_prod) {
|
|
|
|
cur_tx = &sc->dc_ldata->dc_tx_list[idx];
|
|
txstat = le32toh(cur_tx->dc_status);
|
|
ctl = le32toh(cur_tx->dc_ctl);
|
|
|
|
if (txstat & DC_TXSTAT_OWN)
|
|
break;
|
|
|
|
if (!(ctl & DC_TXCTL_LASTFRAG) || ctl & DC_TXCTL_SETUP) {
|
|
if (ctl & DC_TXCTL_SETUP) {
|
|
/*
|
|
* Yes, the PNIC is so brain damaged
|
|
* that it will sometimes generate a TX
|
|
* underrun error while DMAing the RX
|
|
* filter setup frame. If we detect this,
|
|
* we have to send the setup frame again,
|
|
* or else the filter won't be programmed
|
|
* correctly.
|
|
*/
|
|
if (DC_IS_PNIC(sc)) {
|
|
if (txstat & DC_TXSTAT_ERRSUM)
|
|
dc_setfilt(sc);
|
|
}
|
|
sc->dc_cdata.dc_tx_chain[idx] = NULL;
|
|
}
|
|
sc->dc_cdata.dc_tx_cnt--;
|
|
DC_INC(idx, DC_TX_LIST_CNT);
|
|
continue;
|
|
}
|
|
|
|
if (DC_IS_XIRCOM(sc) || DC_IS_CONEXANT(sc)) {
|
|
/*
|
|
* XXX: Why does my Xircom taunt me so?
|
|
* For some reason it likes setting the CARRLOST flag
|
|
* even when the carrier is there. wtf?!?
|
|
* Who knows, but Conexant chips have the
|
|
* same problem. Maybe they took lessons
|
|
* from Xircom.
|
|
*/
|
|
if (/*sc->dc_type == DC_TYPE_21143 &&*/
|
|
sc->dc_pmode == DC_PMODE_MII &&
|
|
((txstat & 0xFFFF) & ~(DC_TXSTAT_ERRSUM |
|
|
DC_TXSTAT_NOCARRIER)))
|
|
txstat &= ~DC_TXSTAT_ERRSUM;
|
|
} else {
|
|
if (/*sc->dc_type == DC_TYPE_21143 &&*/
|
|
sc->dc_pmode == DC_PMODE_MII &&
|
|
((txstat & 0xFFFF) & ~(DC_TXSTAT_ERRSUM |
|
|
DC_TXSTAT_NOCARRIER | DC_TXSTAT_CARRLOST)))
|
|
txstat &= ~DC_TXSTAT_ERRSUM;
|
|
}
|
|
|
|
if (txstat & DC_TXSTAT_ERRSUM) {
|
|
ifp->if_oerrors++;
|
|
if (txstat & DC_TXSTAT_EXCESSCOLL)
|
|
ifp->if_collisions++;
|
|
if (txstat & DC_TXSTAT_LATECOLL)
|
|
ifp->if_collisions++;
|
|
if (!(txstat & DC_TXSTAT_UNDERRUN)) {
|
|
dc_init(sc);
|
|
return;
|
|
}
|
|
}
|
|
|
|
ifp->if_collisions += (txstat & DC_TXSTAT_COLLCNT) >> 3;
|
|
|
|
ifp->if_opackets++;
|
|
if (sc->dc_cdata.dc_tx_chain[idx] != NULL) {
|
|
bus_dmamap_sync(sc->dc_mtag,
|
|
sc->dc_cdata.dc_tx_map[idx],
|
|
BUS_DMASYNC_POSTWRITE);
|
|
bus_dmamap_unload(sc->dc_mtag,
|
|
sc->dc_cdata.dc_tx_map[idx]);
|
|
m_freem(sc->dc_cdata.dc_tx_chain[idx]);
|
|
sc->dc_cdata.dc_tx_chain[idx] = NULL;
|
|
}
|
|
|
|
sc->dc_cdata.dc_tx_cnt--;
|
|
DC_INC(idx, DC_TX_LIST_CNT);
|
|
}
|
|
|
|
if (idx != sc->dc_cdata.dc_tx_cons) {
|
|
/* Some buffers have been freed. */
|
|
sc->dc_cdata.dc_tx_cons = idx;
|
|
ifp->if_flags &= ~IFF_OACTIVE;
|
|
}
|
|
ifp->if_timer = (sc->dc_cdata.dc_tx_cnt == 0) ? 0 : 5;
|
|
}
|
|
|
|
static void
|
|
dc_tick(void *xsc)
|
|
{
|
|
struct dc_softc *sc;
|
|
struct mii_data *mii;
|
|
struct ifnet *ifp;
|
|
u_int32_t r;
|
|
|
|
sc = xsc;
|
|
DC_LOCK(sc);
|
|
ifp = &sc->arpcom.ac_if;
|
|
mii = device_get_softc(sc->dc_miibus);
|
|
|
|
if (sc->dc_flags & DC_REDUCED_MII_POLL) {
|
|
if (sc->dc_flags & DC_21143_NWAY) {
|
|
r = CSR_READ_4(sc, DC_10BTSTAT);
|
|
if (IFM_SUBTYPE(mii->mii_media_active) ==
|
|
IFM_100_TX && (r & DC_TSTAT_LS100)) {
|
|
sc->dc_link = 0;
|
|
mii_mediachg(mii);
|
|
}
|
|
if (IFM_SUBTYPE(mii->mii_media_active) ==
|
|
IFM_10_T && (r & DC_TSTAT_LS10)) {
|
|
sc->dc_link = 0;
|
|
mii_mediachg(mii);
|
|
}
|
|
if (sc->dc_link == 0)
|
|
mii_tick(mii);
|
|
} else {
|
|
r = CSR_READ_4(sc, DC_ISR);
|
|
if ((r & DC_ISR_RX_STATE) == DC_RXSTATE_WAIT &&
|
|
sc->dc_cdata.dc_tx_cnt == 0) {
|
|
mii_tick(mii);
|
|
if (!(mii->mii_media_status & IFM_ACTIVE))
|
|
sc->dc_link = 0;
|
|
}
|
|
}
|
|
} else
|
|
mii_tick(mii);
|
|
|
|
/*
|
|
* When the init routine completes, we expect to be able to send
|
|
* packets right away, and in fact the network code will send a
|
|
* gratuitous ARP the moment the init routine marks the interface
|
|
* as running. However, even though the MAC may have been initialized,
|
|
* there may be a delay of a few seconds before the PHY completes
|
|
* autonegotiation and the link is brought up. Any transmissions
|
|
* made during that delay will be lost. Dealing with this is tricky:
|
|
* we can't just pause in the init routine while waiting for the
|
|
* PHY to come ready since that would bring the whole system to
|
|
* a screeching halt for several seconds.
|
|
*
|
|
* What we do here is prevent the TX start routine from sending
|
|
* any packets until a link has been established. After the
|
|
* interface has been initialized, the tick routine will poll
|
|
* the state of the PHY until the IFM_ACTIVE flag is set. Until
|
|
* that time, packets will stay in the send queue, and once the
|
|
* link comes up, they will be flushed out to the wire.
|
|
*/
|
|
if (!sc->dc_link && mii->mii_media_status & IFM_ACTIVE &&
|
|
IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
|
|
sc->dc_link++;
|
|
if (ifp->if_snd.ifq_head != NULL)
|
|
dc_start(ifp);
|
|
}
|
|
|
|
if (sc->dc_flags & DC_21143_NWAY && !sc->dc_link)
|
|
callout_reset(&sc->dc_stat_ch, hz/10, dc_tick, sc);
|
|
else
|
|
callout_reset(&sc->dc_stat_ch, hz, dc_tick, sc);
|
|
|
|
DC_UNLOCK(sc);
|
|
}
|
|
|
|
/*
|
|
* A transmit underrun has occurred. Back off the transmit threshold,
|
|
* or switch to store and forward mode if we have to.
|
|
*/
|
|
static void
|
|
dc_tx_underrun(struct dc_softc *sc)
|
|
{
|
|
u_int32_t isr;
|
|
int i;
|
|
|
|
if (DC_IS_DAVICOM(sc))
|
|
dc_init(sc);
|
|
|
|
if (DC_IS_INTEL(sc)) {
|
|
/*
|
|
* The real 21143 requires that the transmitter be idle
|
|
* in order to change the transmit threshold or store
|
|
* and forward state.
|
|
*/
|
|
DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_TX_ON);
|
|
|
|
for (i = 0; i < DC_TIMEOUT; i++) {
|
|
isr = CSR_READ_4(sc, DC_ISR);
|
|
if (isr & DC_ISR_TX_IDLE)
|
|
break;
|
|
DELAY(10);
|
|
}
|
|
if (i == DC_TIMEOUT) {
|
|
printf("dc%d: failed to force tx to idle state\n",
|
|
sc->dc_unit);
|
|
dc_init(sc);
|
|
}
|
|
}
|
|
|
|
printf("dc%d: TX underrun -- ", sc->dc_unit);
|
|
sc->dc_txthresh += DC_TXTHRESH_INC;
|
|
if (sc->dc_txthresh > DC_TXTHRESH_MAX) {
|
|
printf("using store and forward mode\n");
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_STORENFWD);
|
|
} else {
|
|
printf("increasing TX threshold\n");
|
|
DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_TX_THRESH);
|
|
DC_SETBIT(sc, DC_NETCFG, sc->dc_txthresh);
|
|
}
|
|
|
|
if (DC_IS_INTEL(sc))
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_TX_ON);
|
|
}
|
|
|
|
#ifdef DEVICE_POLLING
|
|
static poll_handler_t dc_poll;
|
|
|
|
static void
|
|
dc_poll(struct ifnet *ifp, enum poll_cmd cmd, int count)
|
|
{
|
|
struct dc_softc *sc = ifp->if_softc;
|
|
|
|
if (cmd == POLL_DEREGISTER) { /* final call, enable interrupts */
|
|
/* Re-enable interrupts. */
|
|
CSR_WRITE_4(sc, DC_IMR, DC_INTRS);
|
|
return;
|
|
}
|
|
DC_LOCK(sc);
|
|
sc->rxcycles = count;
|
|
dc_rxeof(sc);
|
|
dc_txeof(sc);
|
|
if (ifp->if_snd.ifq_head != NULL && !(ifp->if_flags & IFF_OACTIVE))
|
|
dc_start(ifp);
|
|
|
|
if (cmd == POLL_AND_CHECK_STATUS) { /* also check status register */
|
|
u_int32_t status;
|
|
|
|
status = CSR_READ_4(sc, DC_ISR);
|
|
status &= (DC_ISR_RX_WATDOGTIMEO | DC_ISR_RX_NOBUF |
|
|
DC_ISR_TX_NOBUF | DC_ISR_TX_IDLE | DC_ISR_TX_UNDERRUN |
|
|
DC_ISR_BUS_ERR);
|
|
if (!status) {
|
|
DC_UNLOCK(sc);
|
|
return;
|
|
}
|
|
/* ack what we have */
|
|
CSR_WRITE_4(sc, DC_ISR, status);
|
|
|
|
if (status & (DC_ISR_RX_WATDOGTIMEO | DC_ISR_RX_NOBUF)) {
|
|
u_int32_t r = CSR_READ_4(sc, DC_FRAMESDISCARDED);
|
|
ifp->if_ierrors += (r & 0xffff) + ((r >> 17) & 0x7ff);
|
|
|
|
if (dc_rx_resync(sc))
|
|
dc_rxeof(sc);
|
|
}
|
|
/* restart transmit unit if necessary */
|
|
if (status & DC_ISR_TX_IDLE && sc->dc_cdata.dc_tx_cnt)
|
|
CSR_WRITE_4(sc, DC_TXSTART, 0xFFFFFFFF);
|
|
|
|
if (status & DC_ISR_TX_UNDERRUN)
|
|
dc_tx_underrun(sc);
|
|
|
|
if (status & DC_ISR_BUS_ERR) {
|
|
printf("dc_poll: dc%d bus error\n", sc->dc_unit);
|
|
dc_reset(sc);
|
|
dc_init(sc);
|
|
}
|
|
}
|
|
DC_UNLOCK(sc);
|
|
}
|
|
#endif /* DEVICE_POLLING */
|
|
|
|
static void
|
|
dc_intr(void *arg)
|
|
{
|
|
struct dc_softc *sc;
|
|
struct ifnet *ifp;
|
|
u_int32_t status;
|
|
|
|
sc = arg;
|
|
|
|
if (sc->suspended)
|
|
return;
|
|
|
|
if ((CSR_READ_4(sc, DC_ISR) & DC_INTRS) == 0)
|
|
return;
|
|
|
|
DC_LOCK(sc);
|
|
ifp = &sc->arpcom.ac_if;
|
|
#ifdef DEVICE_POLLING
|
|
if (ifp->if_flags & IFF_POLLING)
|
|
goto done;
|
|
if (ether_poll_register(dc_poll, ifp)) { /* ok, disable interrupts */
|
|
CSR_WRITE_4(sc, DC_IMR, 0x00000000);
|
|
goto done;
|
|
}
|
|
#endif
|
|
|
|
/* Suppress unwanted interrupts */
|
|
if (!(ifp->if_flags & IFF_UP)) {
|
|
if (CSR_READ_4(sc, DC_ISR) & DC_INTRS)
|
|
dc_stop(sc);
|
|
DC_UNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
/* Disable interrupts. */
|
|
CSR_WRITE_4(sc, DC_IMR, 0x00000000);
|
|
|
|
while (((status = CSR_READ_4(sc, DC_ISR)) & DC_INTRS)
|
|
&& status != 0xFFFFFFFF) {
|
|
|
|
CSR_WRITE_4(sc, DC_ISR, status);
|
|
|
|
if (status & DC_ISR_RX_OK) {
|
|
int curpkts;
|
|
curpkts = ifp->if_ipackets;
|
|
dc_rxeof(sc);
|
|
if (curpkts == ifp->if_ipackets) {
|
|
while (dc_rx_resync(sc))
|
|
dc_rxeof(sc);
|
|
}
|
|
}
|
|
|
|
if (status & (DC_ISR_TX_OK | DC_ISR_TX_NOBUF))
|
|
dc_txeof(sc);
|
|
|
|
if (status & DC_ISR_TX_IDLE) {
|
|
dc_txeof(sc);
|
|
if (sc->dc_cdata.dc_tx_cnt) {
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_TX_ON);
|
|
CSR_WRITE_4(sc, DC_TXSTART, 0xFFFFFFFF);
|
|
}
|
|
}
|
|
|
|
if (status & DC_ISR_TX_UNDERRUN)
|
|
dc_tx_underrun(sc);
|
|
|
|
if ((status & DC_ISR_RX_WATDOGTIMEO)
|
|
|| (status & DC_ISR_RX_NOBUF)) {
|
|
int curpkts;
|
|
curpkts = ifp->if_ipackets;
|
|
dc_rxeof(sc);
|
|
if (curpkts == ifp->if_ipackets) {
|
|
while (dc_rx_resync(sc))
|
|
dc_rxeof(sc);
|
|
}
|
|
}
|
|
|
|
if (status & DC_ISR_BUS_ERR) {
|
|
dc_reset(sc);
|
|
dc_init(sc);
|
|
}
|
|
}
|
|
|
|
/* Re-enable interrupts. */
|
|
CSR_WRITE_4(sc, DC_IMR, DC_INTRS);
|
|
|
|
if (ifp->if_snd.ifq_head != NULL)
|
|
dc_start(ifp);
|
|
|
|
#ifdef DEVICE_POLLING
|
|
done:
|
|
#endif
|
|
|
|
DC_UNLOCK(sc);
|
|
}
|
|
|
|
static void
|
|
dc_dma_map_txbuf(arg, segs, nseg, mapsize, error)
|
|
void *arg;
|
|
bus_dma_segment_t *segs;
|
|
int nseg;
|
|
bus_size_t mapsize;
|
|
int error;
|
|
{
|
|
struct dc_softc *sc;
|
|
struct dc_desc *f;
|
|
int cur, first, frag, i;
|
|
|
|
sc = arg;
|
|
if (error) {
|
|
sc->dc_cdata.dc_tx_err = error;
|
|
return;
|
|
}
|
|
|
|
first = cur = frag = sc->dc_cdata.dc_tx_prod;
|
|
for (i = 0; i < nseg; i++) {
|
|
if ((sc->dc_flags & DC_TX_ADMTEK_WAR) &&
|
|
(frag == (DC_TX_LIST_CNT - 1)) &&
|
|
(first != sc->dc_cdata.dc_tx_first)) {
|
|
bus_dmamap_unload(sc->dc_mtag,
|
|
sc->dc_cdata.dc_tx_map[first]);
|
|
sc->dc_cdata.dc_tx_err = ENOBUFS;
|
|
return;
|
|
}
|
|
|
|
f = &sc->dc_ldata->dc_tx_list[frag];
|
|
f->dc_ctl = htole32(DC_TXCTL_TLINK | segs[i].ds_len);
|
|
if (i == 0) {
|
|
f->dc_status = 0;
|
|
f->dc_ctl |= htole32(DC_TXCTL_FIRSTFRAG);
|
|
} else
|
|
f->dc_status = htole32(DC_TXSTAT_OWN);
|
|
f->dc_data = htole32(segs[i].ds_addr);
|
|
cur = frag;
|
|
DC_INC(frag, DC_TX_LIST_CNT);
|
|
}
|
|
|
|
sc->dc_cdata.dc_tx_err = 0;
|
|
sc->dc_cdata.dc_tx_prod = frag;
|
|
sc->dc_cdata.dc_tx_cnt += nseg;
|
|
sc->dc_ldata->dc_tx_list[cur].dc_ctl |= htole32(DC_TXCTL_LASTFRAG);
|
|
sc->dc_cdata.dc_tx_chain[cur] = sc->dc_cdata.dc_tx_mapping;
|
|
if (sc->dc_flags & DC_TX_INTR_FIRSTFRAG)
|
|
sc->dc_ldata->dc_tx_list[first].dc_ctl |=
|
|
htole32(DC_TXCTL_FINT);
|
|
if (sc->dc_flags & DC_TX_INTR_ALWAYS)
|
|
sc->dc_ldata->dc_tx_list[cur].dc_ctl |= htole32(DC_TXCTL_FINT);
|
|
if (sc->dc_flags & DC_TX_USE_TX_INTR && sc->dc_cdata.dc_tx_cnt > 64)
|
|
sc->dc_ldata->dc_tx_list[cur].dc_ctl |= htole32(DC_TXCTL_FINT);
|
|
sc->dc_ldata->dc_tx_list[first].dc_status = htole32(DC_TXSTAT_OWN);
|
|
}
|
|
|
|
/*
|
|
* Encapsulate an mbuf chain in a descriptor by coupling the mbuf data
|
|
* pointers to the fragment pointers.
|
|
*/
|
|
static int
|
|
dc_encap(struct dc_softc *sc, struct mbuf **m_head)
|
|
{
|
|
struct mbuf *m;
|
|
int error, idx, chainlen = 0;
|
|
|
|
/*
|
|
* If there's no way we can send any packets, return now.
|
|
*/
|
|
if (DC_TX_LIST_CNT - sc->dc_cdata.dc_tx_cnt < 6)
|
|
return (ENOBUFS);
|
|
|
|
/*
|
|
* Count the number of frags in this chain to see if
|
|
* we need to m_defrag. Since the descriptor list is shared
|
|
* by all packets, we'll m_defrag long chains so that they
|
|
* do not use up the entire list, even if they would fit.
|
|
*/
|
|
for (m = *m_head; m != NULL; m = m->m_next)
|
|
chainlen++;
|
|
|
|
if ((chainlen > DC_TX_LIST_CNT / 4) ||
|
|
((DC_TX_LIST_CNT - (chainlen + sc->dc_cdata.dc_tx_cnt)) < 6)) {
|
|
m = m_defrag(*m_head, M_DONTWAIT);
|
|
if (m == NULL)
|
|
return (ENOBUFS);
|
|
*m_head = m;
|
|
}
|
|
|
|
/*
|
|
* Start packing the mbufs in this chain into
|
|
* the fragment pointers. Stop when we run out
|
|
* of fragments or hit the end of the mbuf chain.
|
|
*/
|
|
idx = sc->dc_cdata.dc_tx_prod;
|
|
sc->dc_cdata.dc_tx_mapping = *m_head;
|
|
error = bus_dmamap_load_mbuf(sc->dc_mtag, sc->dc_cdata.dc_tx_map[idx],
|
|
*m_head, dc_dma_map_txbuf, sc, 0);
|
|
if (error)
|
|
return (error);
|
|
if (sc->dc_cdata.dc_tx_err != 0)
|
|
return (sc->dc_cdata.dc_tx_err);
|
|
bus_dmamap_sync(sc->dc_mtag, sc->dc_cdata.dc_tx_map[idx],
|
|
BUS_DMASYNC_PREWRITE);
|
|
bus_dmamap_sync(sc->dc_ltag, sc->dc_lmap,
|
|
BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Main transmit routine. To avoid having to do mbuf copies, we put pointers
|
|
* to the mbuf data regions directly in the transmit lists. We also save a
|
|
* copy of the pointers since the transmit list fragment pointers are
|
|
* physical addresses.
|
|
*/
|
|
|
|
static void
|
|
dc_start(struct ifnet *ifp)
|
|
{
|
|
struct dc_softc *sc;
|
|
struct mbuf *m_head = NULL, *m;
|
|
int idx;
|
|
|
|
sc = ifp->if_softc;
|
|
|
|
DC_LOCK(sc);
|
|
|
|
if (!sc->dc_link && ifp->if_snd.ifq_len < 10) {
|
|
DC_UNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
if (ifp->if_flags & IFF_OACTIVE) {
|
|
DC_UNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
idx = sc->dc_cdata.dc_tx_first = sc->dc_cdata.dc_tx_prod;
|
|
|
|
while (sc->dc_cdata.dc_tx_chain[idx] == NULL) {
|
|
IF_DEQUEUE(&ifp->if_snd, m_head);
|
|
if (m_head == NULL)
|
|
break;
|
|
|
|
if (sc->dc_flags & DC_TX_COALESCE &&
|
|
(m_head->m_next != NULL ||
|
|
sc->dc_flags & DC_TX_ALIGN)) {
|
|
m = m_defrag(m_head, M_DONTWAIT);
|
|
if (m == NULL) {
|
|
IF_PREPEND(&ifp->if_snd, m_head);
|
|
ifp->if_flags |= IFF_OACTIVE;
|
|
break;
|
|
} else {
|
|
m_head = m;
|
|
}
|
|
}
|
|
|
|
if (dc_encap(sc, &m_head)) {
|
|
IF_PREPEND(&ifp->if_snd, m_head);
|
|
ifp->if_flags |= IFF_OACTIVE;
|
|
break;
|
|
}
|
|
idx = sc->dc_cdata.dc_tx_prod;
|
|
|
|
/*
|
|
* If there's a BPF listener, bounce a copy of this frame
|
|
* to him.
|
|
*/
|
|
BPF_MTAP(ifp, m_head);
|
|
|
|
if (sc->dc_flags & DC_TX_ONE) {
|
|
ifp->if_flags |= IFF_OACTIVE;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Transmit */
|
|
if (!(sc->dc_flags & DC_TX_POLL))
|
|
CSR_WRITE_4(sc, DC_TXSTART, 0xFFFFFFFF);
|
|
|
|
/*
|
|
* Set a timeout in case the chip goes out to lunch.
|
|
*/
|
|
ifp->if_timer = 5;
|
|
|
|
DC_UNLOCK(sc);
|
|
}
|
|
|
|
static void
|
|
dc_init(void *xsc)
|
|
{
|
|
struct dc_softc *sc = xsc;
|
|
struct ifnet *ifp = &sc->arpcom.ac_if;
|
|
struct mii_data *mii;
|
|
|
|
DC_LOCK(sc);
|
|
|
|
mii = device_get_softc(sc->dc_miibus);
|
|
|
|
/*
|
|
* Cancel pending I/O and free all RX/TX buffers.
|
|
*/
|
|
dc_stop(sc);
|
|
dc_reset(sc);
|
|
|
|
/*
|
|
* Set cache alignment and burst length.
|
|
*/
|
|
if (DC_IS_ASIX(sc) || DC_IS_DAVICOM(sc))
|
|
CSR_WRITE_4(sc, DC_BUSCTL, 0);
|
|
else
|
|
CSR_WRITE_4(sc, DC_BUSCTL, DC_BUSCTL_MRME | DC_BUSCTL_MRLE);
|
|
/*
|
|
* Evenly share the bus between receive and transmit process.
|
|
*/
|
|
if (DC_IS_INTEL(sc))
|
|
DC_SETBIT(sc, DC_BUSCTL, DC_BUSCTL_ARBITRATION);
|
|
if (DC_IS_DAVICOM(sc) || DC_IS_INTEL(sc)) {
|
|
DC_SETBIT(sc, DC_BUSCTL, DC_BURSTLEN_USECA);
|
|
} else {
|
|
DC_SETBIT(sc, DC_BUSCTL, DC_BURSTLEN_16LONG);
|
|
}
|
|
if (sc->dc_flags & DC_TX_POLL)
|
|
DC_SETBIT(sc, DC_BUSCTL, DC_TXPOLL_1);
|
|
switch(sc->dc_cachesize) {
|
|
case 32:
|
|
DC_SETBIT(sc, DC_BUSCTL, DC_CACHEALIGN_32LONG);
|
|
break;
|
|
case 16:
|
|
DC_SETBIT(sc, DC_BUSCTL, DC_CACHEALIGN_16LONG);
|
|
break;
|
|
case 8:
|
|
DC_SETBIT(sc, DC_BUSCTL, DC_CACHEALIGN_8LONG);
|
|
break;
|
|
case 0:
|
|
default:
|
|
DC_SETBIT(sc, DC_BUSCTL, DC_CACHEALIGN_NONE);
|
|
break;
|
|
}
|
|
|
|
if (sc->dc_flags & DC_TX_STORENFWD)
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_STORENFWD);
|
|
else {
|
|
if (sc->dc_txthresh > DC_TXTHRESH_MAX) {
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_STORENFWD);
|
|
} else {
|
|
DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_STORENFWD);
|
|
DC_SETBIT(sc, DC_NETCFG, sc->dc_txthresh);
|
|
}
|
|
}
|
|
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_NO_RXCRC);
|
|
DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_TX_BACKOFF);
|
|
|
|
if (DC_IS_MACRONIX(sc) || DC_IS_PNICII(sc)) {
|
|
/*
|
|
* The app notes for the 98713 and 98715A say that
|
|
* in order to have the chips operate properly, a magic
|
|
* number must be written to CSR16. Macronix does not
|
|
* document the meaning of these bits so there's no way
|
|
* to know exactly what they do. The 98713 has a magic
|
|
* number all its own; the rest all use a different one.
|
|
*/
|
|
DC_CLRBIT(sc, DC_MX_MAGICPACKET, 0xFFFF0000);
|
|
if (sc->dc_type == DC_TYPE_98713)
|
|
DC_SETBIT(sc, DC_MX_MAGICPACKET, DC_MX_MAGIC_98713);
|
|
else
|
|
DC_SETBIT(sc, DC_MX_MAGICPACKET, DC_MX_MAGIC_98715);
|
|
}
|
|
|
|
if (DC_IS_XIRCOM(sc)) {
|
|
/*
|
|
* setup General Purpose Port mode and data so the tulip
|
|
* can talk to the MII.
|
|
*/
|
|
CSR_WRITE_4(sc, DC_SIAGP, DC_SIAGP_WRITE_EN | DC_SIAGP_INT1_EN |
|
|
DC_SIAGP_MD_GP2_OUTPUT | DC_SIAGP_MD_GP0_OUTPUT);
|
|
DELAY(10);
|
|
CSR_WRITE_4(sc, DC_SIAGP, DC_SIAGP_INT1_EN |
|
|
DC_SIAGP_MD_GP2_OUTPUT | DC_SIAGP_MD_GP0_OUTPUT);
|
|
DELAY(10);
|
|
}
|
|
|
|
DC_CLRBIT(sc, DC_NETCFG, DC_NETCFG_TX_THRESH);
|
|
DC_SETBIT(sc, DC_NETCFG, DC_TXTHRESH_MIN);
|
|
|
|
/* Init circular RX list. */
|
|
if (dc_list_rx_init(sc) == ENOBUFS) {
|
|
printf("dc%d: initialization failed: no "
|
|
"memory for rx buffers\n", sc->dc_unit);
|
|
dc_stop(sc);
|
|
DC_UNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Init TX descriptors.
|
|
*/
|
|
dc_list_tx_init(sc);
|
|
|
|
/*
|
|
* Load the address of the RX list.
|
|
*/
|
|
CSR_WRITE_4(sc, DC_RXADDR, DC_RXDESC(sc, 0));
|
|
CSR_WRITE_4(sc, DC_TXADDR, DC_TXDESC(sc, 0));
|
|
|
|
/*
|
|
* Enable interrupts.
|
|
*/
|
|
#ifdef DEVICE_POLLING
|
|
/*
|
|
* ... but only if we are not polling, and make sure they are off in
|
|
* the case of polling. Some cards (e.g. fxp) turn interrupts on
|
|
* after a reset.
|
|
*/
|
|
if (ifp->if_flags & IFF_POLLING)
|
|
CSR_WRITE_4(sc, DC_IMR, 0x00000000);
|
|
else
|
|
#endif
|
|
CSR_WRITE_4(sc, DC_IMR, DC_INTRS);
|
|
CSR_WRITE_4(sc, DC_ISR, 0xFFFFFFFF);
|
|
|
|
/* Enable transmitter. */
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_TX_ON);
|
|
|
|
/*
|
|
* If this is an Intel 21143 and we're not using the
|
|
* MII port, program the LED control pins so we get
|
|
* link and activity indications.
|
|
*/
|
|
if (sc->dc_flags & DC_TULIP_LEDS) {
|
|
CSR_WRITE_4(sc, DC_WATCHDOG,
|
|
DC_WDOG_CTLWREN | DC_WDOG_LINK | DC_WDOG_ACTIVITY);
|
|
CSR_WRITE_4(sc, DC_WATCHDOG, 0);
|
|
}
|
|
|
|
/*
|
|
* Load the RX/multicast filter. We do this sort of late
|
|
* because the filter programming scheme on the 21143 and
|
|
* some clones requires DMAing a setup frame via the TX
|
|
* engine, and we need the transmitter enabled for that.
|
|
*/
|
|
dc_setfilt(sc);
|
|
|
|
/* Enable receiver. */
|
|
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_RX_ON);
|
|
CSR_WRITE_4(sc, DC_RXSTART, 0xFFFFFFFF);
|
|
|
|
mii_mediachg(mii);
|
|
dc_setcfg(sc, sc->dc_if_media);
|
|
|
|
ifp->if_flags |= IFF_RUNNING;
|
|
ifp->if_flags &= ~IFF_OACTIVE;
|
|
|
|
/* Don't start the ticker if this is a homePNA link. */
|
|
if (IFM_SUBTYPE(mii->mii_media.ifm_media) == IFM_HPNA_1)
|
|
sc->dc_link = 1;
|
|
else {
|
|
if (sc->dc_flags & DC_21143_NWAY)
|
|
callout_reset(&sc->dc_stat_ch, hz/10, dc_tick, sc);
|
|
else
|
|
callout_reset(&sc->dc_stat_ch, hz, dc_tick, sc);
|
|
}
|
|
|
|
#ifdef SRM_MEDIA
|
|
if(sc->dc_srm_media) {
|
|
struct ifreq ifr;
|
|
|
|
ifr.ifr_media = sc->dc_srm_media;
|
|
ifmedia_ioctl(ifp, &ifr, &mii->mii_media, SIOCSIFMEDIA);
|
|
sc->dc_srm_media = 0;
|
|
}
|
|
#endif
|
|
DC_UNLOCK(sc);
|
|
}
|
|
|
|
/*
|
|
* Set media options.
|
|
*/
|
|
static int
|
|
dc_ifmedia_upd(struct ifnet *ifp)
|
|
{
|
|
struct dc_softc *sc;
|
|
struct mii_data *mii;
|
|
struct ifmedia *ifm;
|
|
|
|
sc = ifp->if_softc;
|
|
mii = device_get_softc(sc->dc_miibus);
|
|
mii_mediachg(mii);
|
|
ifm = &mii->mii_media;
|
|
|
|
if (DC_IS_DAVICOM(sc) &&
|
|
IFM_SUBTYPE(ifm->ifm_media) == IFM_HPNA_1)
|
|
dc_setcfg(sc, ifm->ifm_media);
|
|
else
|
|
sc->dc_link = 0;
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Report current media status.
|
|
*/
|
|
static void
|
|
dc_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
|
|
{
|
|
struct dc_softc *sc;
|
|
struct mii_data *mii;
|
|
struct ifmedia *ifm;
|
|
|
|
sc = ifp->if_softc;
|
|
mii = device_get_softc(sc->dc_miibus);
|
|
mii_pollstat(mii);
|
|
ifm = &mii->mii_media;
|
|
if (DC_IS_DAVICOM(sc)) {
|
|
if (IFM_SUBTYPE(ifm->ifm_media) == IFM_HPNA_1) {
|
|
ifmr->ifm_active = ifm->ifm_media;
|
|
ifmr->ifm_status = 0;
|
|
return;
|
|
}
|
|
}
|
|
ifmr->ifm_active = mii->mii_media_active;
|
|
ifmr->ifm_status = mii->mii_media_status;
|
|
}
|
|
|
|
static int
|
|
dc_ioctl(struct ifnet *ifp, u_long command, caddr_t data)
|
|
{
|
|
struct dc_softc *sc = ifp->if_softc;
|
|
struct ifreq *ifr = (struct ifreq *)data;
|
|
struct mii_data *mii;
|
|
int error = 0;
|
|
|
|
DC_LOCK(sc);
|
|
|
|
switch (command) {
|
|
case SIOCSIFFLAGS:
|
|
if (ifp->if_flags & IFF_UP) {
|
|
int need_setfilt = (ifp->if_flags ^ sc->dc_if_flags) &
|
|
(IFF_PROMISC | IFF_ALLMULTI);
|
|
|
|
if (ifp->if_flags & IFF_RUNNING) {
|
|
if (need_setfilt)
|
|
dc_setfilt(sc);
|
|
} else {
|
|
sc->dc_txthresh = 0;
|
|
dc_init(sc);
|
|
}
|
|
} else {
|
|
if (ifp->if_flags & IFF_RUNNING)
|
|
dc_stop(sc);
|
|
}
|
|
sc->dc_if_flags = ifp->if_flags;
|
|
error = 0;
|
|
break;
|
|
case SIOCADDMULTI:
|
|
case SIOCDELMULTI:
|
|
dc_setfilt(sc);
|
|
error = 0;
|
|
break;
|
|
case SIOCGIFMEDIA:
|
|
case SIOCSIFMEDIA:
|
|
mii = device_get_softc(sc->dc_miibus);
|
|
error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command);
|
|
#ifdef SRM_MEDIA
|
|
if (sc->dc_srm_media)
|
|
sc->dc_srm_media = 0;
|
|
#endif
|
|
break;
|
|
default:
|
|
error = ether_ioctl(ifp, command, data);
|
|
break;
|
|
}
|
|
|
|
DC_UNLOCK(sc);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static void
|
|
dc_watchdog(struct ifnet *ifp)
|
|
{
|
|
struct dc_softc *sc;
|
|
|
|
sc = ifp->if_softc;
|
|
|
|
DC_LOCK(sc);
|
|
|
|
ifp->if_oerrors++;
|
|
printf("dc%d: watchdog timeout\n", sc->dc_unit);
|
|
|
|
dc_stop(sc);
|
|
dc_reset(sc);
|
|
dc_init(sc);
|
|
|
|
if (ifp->if_snd.ifq_head != NULL)
|
|
dc_start(ifp);
|
|
|
|
DC_UNLOCK(sc);
|
|
}
|
|
|
|
/*
|
|
* Stop the adapter and free any mbufs allocated to the
|
|
* RX and TX lists.
|
|
*/
|
|
static void
|
|
dc_stop(struct dc_softc *sc)
|
|
{
|
|
struct ifnet *ifp;
|
|
struct dc_list_data *ld;
|
|
struct dc_chain_data *cd;
|
|
int i;
|
|
u_int32_t ctl;
|
|
|
|
DC_LOCK(sc);
|
|
|
|
ifp = &sc->arpcom.ac_if;
|
|
ifp->if_timer = 0;
|
|
ld = sc->dc_ldata;
|
|
cd = &sc->dc_cdata;
|
|
|
|
callout_stop(&sc->dc_stat_ch);
|
|
|
|
ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
|
|
#ifdef DEVICE_POLLING
|
|
ether_poll_deregister(ifp);
|
|
#endif
|
|
|
|
DC_CLRBIT(sc, DC_NETCFG, (DC_NETCFG_RX_ON | DC_NETCFG_TX_ON));
|
|
CSR_WRITE_4(sc, DC_IMR, 0x00000000);
|
|
CSR_WRITE_4(sc, DC_TXADDR, 0x00000000);
|
|
CSR_WRITE_4(sc, DC_RXADDR, 0x00000000);
|
|
sc->dc_link = 0;
|
|
|
|
/*
|
|
* Free data in the RX lists.
|
|
*/
|
|
for (i = 0; i < DC_RX_LIST_CNT; i++) {
|
|
if (cd->dc_rx_chain[i] != NULL) {
|
|
m_freem(cd->dc_rx_chain[i]);
|
|
cd->dc_rx_chain[i] = NULL;
|
|
}
|
|
}
|
|
bzero(&ld->dc_rx_list, sizeof(ld->dc_rx_list));
|
|
|
|
/*
|
|
* Free the TX list buffers.
|
|
*/
|
|
for (i = 0; i < DC_TX_LIST_CNT; i++) {
|
|
if (cd->dc_tx_chain[i] != NULL) {
|
|
ctl = le32toh(ld->dc_tx_list[i].dc_ctl);
|
|
if ((ctl & DC_TXCTL_SETUP) ||
|
|
!(ctl & DC_TXCTL_LASTFRAG)) {
|
|
cd->dc_tx_chain[i] = NULL;
|
|
continue;
|
|
}
|
|
bus_dmamap_unload(sc->dc_mtag, cd->dc_tx_map[i]);
|
|
m_freem(cd->dc_tx_chain[i]);
|
|
cd->dc_tx_chain[i] = NULL;
|
|
}
|
|
}
|
|
bzero(&ld->dc_tx_list, sizeof(ld->dc_tx_list));
|
|
|
|
DC_UNLOCK(sc);
|
|
}
|
|
|
|
/*
|
|
* Device suspend routine. Stop the interface and save some PCI
|
|
* settings in case the BIOS doesn't restore them properly on
|
|
* resume.
|
|
*/
|
|
static int
|
|
dc_suspend(device_t dev)
|
|
{
|
|
struct dc_softc *sc;
|
|
int i, s;
|
|
|
|
s = splimp();
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
dc_stop(sc);
|
|
|
|
for (i = 0; i < 5; i++)
|
|
sc->saved_maps[i] = pci_read_config(dev, PCIR_BAR(i), 4);
|
|
sc->saved_biosaddr = pci_read_config(dev, PCIR_BIOS, 4);
|
|
sc->saved_intline = pci_read_config(dev, PCIR_INTLINE, 1);
|
|
sc->saved_cachelnsz = pci_read_config(dev, PCIR_CACHELNSZ, 1);
|
|
sc->saved_lattimer = pci_read_config(dev, PCIR_LATTIMER, 1);
|
|
|
|
sc->suspended = 1;
|
|
|
|
splx(s);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Device resume routine. Restore some PCI settings in case the BIOS
|
|
* doesn't, re-enable busmastering, and restart the interface if
|
|
* appropriate.
|
|
*/
|
|
static int
|
|
dc_resume(device_t dev)
|
|
{
|
|
struct dc_softc *sc;
|
|
struct ifnet *ifp;
|
|
int i, s;
|
|
|
|
s = splimp();
|
|
|
|
sc = device_get_softc(dev);
|
|
ifp = &sc->arpcom.ac_if;
|
|
#ifndef BURN_BRIDGES
|
|
dc_acpi(dev);
|
|
#endif
|
|
/* better way to do this? */
|
|
for (i = 0; i < 5; i++)
|
|
pci_write_config(dev, PCIR_BAR(i), sc->saved_maps[i], 4);
|
|
pci_write_config(dev, PCIR_BIOS, sc->saved_biosaddr, 4);
|
|
pci_write_config(dev, PCIR_INTLINE, sc->saved_intline, 1);
|
|
pci_write_config(dev, PCIR_CACHELNSZ, sc->saved_cachelnsz, 1);
|
|
pci_write_config(dev, PCIR_LATTIMER, sc->saved_lattimer, 1);
|
|
|
|
/* reenable busmastering */
|
|
pci_enable_busmaster(dev);
|
|
pci_enable_io(dev, DC_RES);
|
|
|
|
/* reinitialize interface if necessary */
|
|
if (ifp->if_flags & IFF_UP)
|
|
dc_init(sc);
|
|
|
|
sc->suspended = 0;
|
|
|
|
splx(s);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Stop all chip I/O so that the kernel's probe routines don't
|
|
* get confused by errant DMAs when rebooting.
|
|
*/
|
|
static void
|
|
dc_shutdown(device_t dev)
|
|
{
|
|
struct dc_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
dc_stop(sc);
|
|
}
|