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9929d2a045
freebsd/sys/pci/if_axreg.h
Bill Paul 727c88e9da Tweak the Macronix driver to hopefully make it more reliable: 
- Change to the same transmit scheme as the PNIC driver.
- Dynamically set the cache alignment, and set burst size the same as
  the PNIC driver in mx_init().
- Enable 'store and forward' mode by default. This is the slowest option
  and it does reduce 100Mbps performance somewhat, but it's the most
  reliable setting I can find. I'm more interested in having the driver
  work reliably than trying to squeeze the best performance out of it.
  The reason I'm doing this is that on *some* systems you may see a lot
  of transmit underruns (which I can't explain: these are *fast* test
  systems) and these errors seem to cause unusual and decidedly
  non-tulip-like behavior. In normal 10Mbps mode, performance is fine
  (you can easily saturate a 10Mbps link).

Also tweak some of the other drivers:

- Increase the size of the TX ring for the Winbond, ASIX, VIA Rhine
  and PNIC drivers.
- Set a larger value for ifq_maxlen in the ThunderLAN driver. The setting
  of TL_TX_LIST_CNT - 1 is too low (the ThunderLAN driver only allocates
  20 transmit descriptors, and I don't want to fiddle with that now
  because the ThunderLAN's descriptor structure is an oddball size
  compared to the others).
1999-05-06 15:32:52 +00:00

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/*
* Copyright (c) 1997, 1998, 1999
* Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Bill Paul.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: if_axreg.h,v 1.5 1999/04/08 17:42:47 wpaul Exp $
*/
/*
* ASIX register definitions.
*/
#define AX_BUSCTL 0x00 /* bus control */
#define AX_TXSTART 0x08 /* tx start demand */
#define AX_RXSTART 0x10 /* rx start demand */
#define AX_RXADDR 0x18 /* rx descriptor list start addr */
#define AX_TXADDR 0x20 /* tx descriptor list start addr */
#define AX_ISR 0x28 /* interrupt status register */
#define AX_NETCFG 0x30 /* network config register */
#define AX_IMR 0x38 /* interrupt mask */
#define AX_FRAMESDISCARDED 0x40 /* # of discarded frames */
#define AX_SIO 0x48 /* MII and ROM/EEPROM access */
#define AX_RESERVED 0x50
#define AX_GENTIMER 0x58 /* general timer */
#define AX_GENPORT 0x60 /* general purpose port */
#define AX_FILTIDX 0x68 /* RX filter index */
#define AX_FILTDATA 0x70 /* RX filter data */
/*
* Bus control bits.
*/
#define AX_BUSCTL_RESET 0x00000001
#define AX_BUSCTL_ARBITRATION 0x00000002
#define AX_BUSCTL_BIGENDIAN 0x00000080
#define AX_BUSCTL_BURSTLEN 0x00003F00
#define AX_BUSCTL_BUF_BIGENDIAN 0x00100000
#define AX_BISCTL_READMULTI 0x00200000
#define AX_BURSTLEN_UNLIMIT 0x00000000
#define AX_BURSTLEN_1LONG 0x00000100
#define AX_BURSTLEN_2LONG 0x00000200
#define AX_BURSTLEN_4LONG 0x00000400
#define AX_BURSTLEN_8LONG 0x00000800
#define AX_BURSTLEN_16LONG 0x00001000
#define AX_BURSTLEN_32LONG 0x00002000
#define AX_BUSCTL_CONFIG (AX_BUSCTL_ARBITRATION|AX_BURSTLEN_8LONG|AX_BURSTLEN_8LONG)
/*
* Interrupt status bits.
*/
#define AX_ISR_TX_OK 0x00000001
#define AX_ISR_TX_IDLE 0x00000002
#define AX_ISR_TX_NOBUF 0x00000004
#define AX_ISR_TX_JABBERTIMEO 0x00000008
#define AX_ISR_TX_UNDERRUN 0x00000020
#define AX_ISR_RX_OK 0x00000040
#define AX_ISR_RX_NOBUF 0x00000080
#define AX_ISR_RX_IDLE 0x00000100
#define AX_ISR_RX_WATDOGTIMEO 0x00000200
#define AX_ISR_TX_EARLY 0x00000400
#define AX_ISR_TIMER_EXPIRED 0x00000800
#define AX_ISR_BUS_ERR 0x00002000
#define AX_ISR_ABNORMAL 0x00008000
#define AX_ISR_NORMAL 0x00010000
#define AX_ISR_RX_STATE 0x000E0000
#define AX_ISR_TX_STATE 0x00700000
#define AX_ISR_BUSERRTYPE 0x03800000
#define AX_RXSTATE_STOPPED 0x00000000 /* 000 - Stopped */
#define AX_RXSTATE_FETCH 0x00020000 /* 001 - Fetching descriptor */
#define AX_RXSTATE_ENDCHECK 0x00040000 /* 010 - check for rx end */
#define AX_RXSTATE_WAIT 0x00060000 /* 011 - waiting for packet */
#define AX_RXSTATE_SUSPEND 0x00080000 /* 100 - suspend rx */
#define AX_RXSTATE_CLOSE 0x000A0000 /* 101 - close tx desc */
#define AX_RXSTATE_FLUSH 0x000C0000 /* 110 - flush from FIFO */
#define AX_RXSTATE_DEQUEUE 0x000E0000 /* 111 - dequeue from FIFO */
#define AX_TXSTATE_RESET 0x00000000 /* 000 - reset */
#define AX_TXSTATE_FETCH 0x00100000 /* 001 - fetching descriptor */
#define AX_TXSTATE_WAITEND 0x00200000 /* 010 - wait for tx end */
#define AX_TXSTATE_READING 0x00300000 /* 011 - read and enqueue */
#define AX_TXSTATE_RSVD 0x00400000 /* 100 - reserved */
#define AX_TXSTATE_SETUP 0x00500000 /* 101 - setup packet */
#define AX_TXSTATE_SUSPEND 0x00600000 /* 110 - suspend tx */
#define AX_TXSTATE_CLOSE 0x00700000 /* 111 - close tx desc */
/*
* Network config bits.
*/
#define AX_NETCFG_LINKSTAT_PCS 0x00000001
#define AX_NETCFG_RX_ON 0x00000002
#define AX_NETCFG_RX_BADFRAMES 0x00000008
#define AX_NETCFG_RX_PROMISC 0x00000040
#define AX_NETCFG_RX_ALLMULTI 0x00000080
#define AX_NETCFG_RX_BROAD 0x00000100
#define AX_NETCFG_FULLDUPLEX 0x00000200
#define AX_NETCFG_LOOPBACK 0x00000C00
#define AX_NETCFG_FORCECOLL 0x00001000
#define AX_NETCFG_TX_ON 0x00002000
#define AX_NETCFG_TX_THRESH 0x0000C000
#define AX_NETCFG_PORTSEL 0x00040000 /* 0 == SRL, 1 == MII/SYM */
#define AX_NETCFG_HEARTBEAT 0x00080000 /* 0 == ON, 1 == OFF */
#define AX_NETCFG_STORENFWD 0x00200000
#define AX_NETCFG_SPEEDSEL 0x00400000 /* 1 == 10, 0 == 100 */
#define AX_NETCFG_PCS 0x00800000
#define AX_NETCFG_SCRAMBLER 0x01000000
#define AX_NETCFG_RX_ALL 0x40000000
#define AX_OPMODE_NORM 0x00000000
#define AX_OPMODE_INTLOOP 0x00000400
#define AX_OPMODE_EXTLOOP 0x00000800
#define AX_TXTHRESH_72BYTES 0x00000000
#define AX_TXTHRESH_96BYTES 0x00004000
#define AX_TXTHRESH_128BYTES 0x00008000
#define AX_TXTHRESH_160BYTES 0x0000C000
/*
* Interrupt mask bits.
*/
#define AX_IMR_TX_OK 0x00000001
#define AX_IMR_TX_IDLE 0x00000002
#define AX_IMR_TX_NOBUF 0x00000004
#define AX_IMR_TX_JABBERTIMEO 0x00000008
#define AX_IMR_TX_UNDERRUN 0x00000020
#define AX_IMR_RX_OK 0x00000040
#define AX_IMR_RX_NOBUF 0x00000080
#define AX_IMR_RX_IDLE 0x00000100
#define AX_IMR_RX_WATDOGTIMEO 0x00000200
#define AX_IMR_TX_EARLY 0x00000400
#define AX_IMR_TIMER_EXPIRED 0x00000800
#define AX_IMR_BUS_ERR 0x00002000
#define AX_IMR_RX_EARLY 0x00004000
#define AX_IMR_ABNORMAL 0x00008000
#define AX_IMR_NORMAL 0x00010000
#define AX_INTRS \
(AX_IMR_RX_OK|AX_IMR_TX_OK|AX_IMR_RX_NOBUF|AX_IMR_RX_WATDOGTIMEO|\
AX_IMR_TX_NOBUF|AX_IMR_TX_UNDERRUN|AX_IMR_BUS_ERR| \
AX_IMR_ABNORMAL|AX_IMR_NORMAL|/*AX_IMR_TX_EARLY*/ \
AX_IMR_TX_IDLE|AX_IMR_RX_IDLE)
/*
* Serial I/O (EEPROM/ROM) bits.
*/
#define AX_SIO_EE_CS 0x00000001 /* EEPROM chip select */
#define AX_SIO_EE_CLK 0x00000002 /* EEPROM clock */
#define AX_SIO_EE_DATAIN 0x00000004 /* EEPROM data output */
#define AX_SIO_EE_DATAOUT 0x00000008 /* EEPROM data input */
#define AX_SIO_EESEL 0x00000800
#define AX_SIO_ROMSEL 0x00001000
#define AX_SIO_ROMCTL_WRITE 0x00002000
#define AX_SIO_ROMCTL_READ 0x00004000
#define AX_SIO_MII_CLK 0x00010000 /* MDIO clock */
#define AX_SIO_MII_DATAOUT 0x00020000 /* MDIO data out */
#define AX_SIO_MII_DIR 0x00040000 /* MDIO dir */
#define AX_SIO_MII_DATAIN 0x00080000 /* MDIO data in */
#define AX_EECMD_WRITE 0x140
#define AX_EECMD_READ 0x180
#define AX_EECMD_ERASE 0x1c0
#define AX_EE_NODEADDR_OFFSET 0x70
#define AX_EE_NODEADDR 10
/*
* General purpose timer register
*/
#define AX_TIMER_VALUE 0x0000FFFF
#define AX_TIMER_CONTINUOUS 0x00010000
/*
* RX Filter Index Register values
*/
#define AX_FILTIDX_PAR0 0x00000000
#define AX_FILTIDX_PAR1 0x00000001
#define AX_FILTIDX_MAR0 0x00000002
#define AX_FILTIDX_MAR1 0x00000003
/*
* ASIX TX/RX list structure.
*/
struct ax_desc {
volatile u_int32_t ax_status;
volatile u_int32_t ax_ctl;
volatile u_int32_t ax_ptr1;
volatile u_int32_t ax_ptr2;
};
#define ax_data ax_ptr1
#define ax_next ax_ptr2
#define AX_RXSTAT_FIFOOFLOW 0x00000001
#define AX_RXSTAT_CRCERR 0x00000002
#define AX_RXSTAT_DRIBBLE 0x00000004
#define AX_RXSTAT_WATCHDOG 0x00000010
#define AX_RXSTAT_FRAMETYPE 0x00000020 /* 0 == IEEE 802.3 */
#define AX_RXSTAT_COLLSEEN 0x00000040
#define AX_RXSTAT_GIANT 0x00000080
#define AX_RXSTAT_LASTFRAG 0x00000100
#define AX_RXSTAT_FIRSTFRAG 0x00000200
#define AX_RXSTAT_MULTICAST 0x00000400
#define AX_RXSTAT_RUNT 0x00000800
#define AX_RXSTAT_RXTYPE 0x00003000
#define AX_RXSTAT_RXERR 0x00008000
#define AX_RXSTAT_RXLEN 0x3FFF0000
#define AX_RXSTAT_OWN 0x80000000
#define AX_RXBYTES(x) ((x & AX_RXSTAT_RXLEN) >> 16)
#define AX_RXSTAT (AX_RXSTAT_FIRSTFRAG|AX_RXSTAT_LASTFRAG|AX_RXSTAT_OWN)
#define AX_RXCTL_BUFLEN1 0x00000FFF
#define AX_RXCTL_BUFLEN2 0x00FFF000
#define AX_RXCTL_RLAST 0x02000000
#define AX_TXSTAT_DEFER 0x00000001
#define AX_TXSTAT_UNDERRUN 0x00000002
#define AX_TXSTAT_LINKFAIL 0x00000003
#define AX_TXSTAT_COLLCNT 0x00000078
#define AX_TXSTAT_SQE 0x00000080
#define AX_TXSTAT_EXCESSCOLL 0x00000100
#define AX_TXSTAT_LATECOLL 0x00000200
#define AX_TXSTAT_NOCARRIER 0x00000400
#define AX_TXSTAT_CARRLOST 0x00000800
#define AX_TXSTAT_JABTIMEO 0x00004000
#define AX_TXSTAT_ERRSUM 0x00008000
#define AX_TXSTAT_OWN 0x80000000
#define AX_TXCTL_BUFLEN1 0x000007FF
#define AX_TXCTL_BUFLEN2 0x003FF800
#define AX_TXCTL_PAD 0x00800000
#define AX_TXCTL_TLAST 0x02000000
#define AX_TXCTL_NOCRC 0x04000000
#define AX_TXCTL_FIRSTFRAG 0x20000000
#define AX_TXCTL_LASTFRAG 0x40000000
#define AX_TXCTL_FINT 0x80000000
#define AX_MAXFRAGS 16
#define AX_RX_LIST_CNT 64
#define AX_TX_LIST_CNT 128
#define AX_MIN_FRAMELEN 60
/*
* A tx 'super descriptor' is actually 16 regular descriptors
* back to back.
*/
struct ax_txdesc {
volatile struct ax_desc ax_frag[AX_MAXFRAGS];
};
#define AX_TXNEXT(x) x->ax_ptr->ax_frag[x->ax_lastdesc].ax_next
#define AX_TXSTATUS(x) x->ax_ptr->ax_frag[x->ax_lastdesc].ax_status
#define AX_TXCTL(x) x->ax_ptr->ax_frag[x->ax_lastdesc].ax_ctl
#define AX_TXDATA(x) x->ax_ptr->ax_frag[x->ax_lastdesc].ax_data
#define AX_TXOWN(x) x->ax_ptr->ax_frag[0].ax_status
#define AX_UNSENT 0x12341234
struct ax_list_data {
volatile struct ax_desc ax_rx_list[AX_RX_LIST_CNT];
volatile struct ax_txdesc ax_tx_list[AX_TX_LIST_CNT];
};
struct ax_chain {
volatile struct ax_txdesc *ax_ptr;
struct mbuf *ax_mbuf;
struct ax_chain *ax_nextdesc;
u_int8_t ax_lastdesc;
};
struct ax_chain_onefrag {
volatile struct ax_desc *ax_ptr;
struct mbuf *ax_mbuf;
struct ax_chain_onefrag *ax_nextdesc;
};
struct ax_chain_data {
struct ax_chain_onefrag ax_rx_chain[AX_RX_LIST_CNT];
struct ax_chain ax_tx_chain[AX_TX_LIST_CNT];
struct ax_chain_onefrag *ax_rx_head;
struct ax_chain *ax_tx_head;
struct ax_chain *ax_tx_tail;
struct ax_chain *ax_tx_free;
};
struct ax_type {
u_int16_t ax_vid;
u_int16_t ax_did;
char *ax_name;
};
struct ax_mii_frame {
u_int8_t mii_stdelim;
u_int8_t mii_opcode;
u_int8_t mii_phyaddr;
u_int8_t mii_regaddr;
u_int8_t mii_turnaround;
u_int16_t mii_data;
};
/*
* MII constants
*/
#define AX_MII_STARTDELIM 0x01
#define AX_MII_READOP 0x02
#define AX_MII_WRITEOP 0x01
#define AX_MII_TURNAROUND 0x02
#define AX_FLAG_FORCEDELAY 1
#define AX_FLAG_SCHEDDELAY 2
#define AX_FLAG_DELAYTIMEO 3
struct ax_softc {
struct arpcom arpcom; /* interface info */
struct ifmedia ifmedia; /* media info */
bus_space_handle_t ax_bhandle; /* bus space handle */
bus_space_tag_t ax_btag; /* bus space tag */
struct ax_type *ax_info; /* ASIX adapter info */
struct ax_type *ax_pinfo; /* phy info */
u_int8_t ax_unit; /* interface number */
u_int8_t ax_type;
u_int8_t ax_phy_addr; /* PHY address */
u_int8_t ax_tx_pend; /* TX pending */
u_int8_t ax_want_auto;
u_int8_t ax_autoneg;
caddr_t ax_ldata_ptr;
struct ax_list_data *ax_ldata;
struct ax_chain_data ax_cdata;
};
/*
* register space access macros
*/
#define CSR_WRITE_4(sc, reg, val) \
bus_space_write_4(sc->ax_btag, sc->ax_bhandle, reg, val)
#define CSR_WRITE_2(sc, reg, val) \
bus_space_write_2(sc->ax_btag, sc->ax_bbhandle, reg, val)
#define CSR_WRITE_1(sc, reg, val) \
bus_space_write_1(sc->ax_btag, sc->ax_bhandle, reg, val)
#define CSR_READ_4(sc, reg) \
bus_space_read_4(sc->ax_btag, sc->ax_bhandle, reg)
#define CSR_READ_2(sc, reg) \
bus_space_read_2(sc->ax_btag, sc->ax_bhandle, reg)
#define CSR_READ_1(sc, reg) \
bus_space_read_1(sc->ax_btag, sc->ax_bhandle, reg)
#define AX_TIMEOUT 1000
/*
* General constants that are fun to know.
*
* ASIX PCI vendor ID
*/
#define AX_VENDORID 0x125B
/*
* ASIX device IDs.
*/
#define AX_DEVICEID_AX88140A 0x1400
/*
* The ASIX AX88140 and ASIX AX88141 have the same vendor and
* device IDs but different revision values.
*/
#define AX_REVISION_88140 0x00
#define AX_REVISION_88141 0x10
/*
* Texas Instruments PHY identifiers
*/
#define TI_PHY_VENDORID 0x4000
#define TI_PHY_10BT 0x501F
#define TI_PHY_100VGPMI 0x502F
/*
* These ID values are for the NS DP83840A 10/100 PHY
*/
#define NS_PHY_VENDORID 0x2000
#define NS_PHY_83840A 0x5C0F
/*
* Level 1 10/100 PHY
*/
#define LEVEL1_PHY_VENDORID 0x7810
#define LEVEL1_PHY_LXT970 0x000F
/*
* Intel 82555 10/100 PHY
*/
#define INTEL_PHY_VENDORID 0x0A28
#define INTEL_PHY_82555 0x015F
/*
* SEEQ 80220 10/100 PHY
*/
#define SEEQ_PHY_VENDORID 0x0016
#define SEEQ_PHY_80220 0xF83F
/*
* PCI low memory base and low I/O base register, and
* other PCI registers.
*/
#define AX_PCI_VENDOR_ID 0x00
#define AX_PCI_DEVICE_ID 0x02
#define AX_PCI_COMMAND 0x04
#define AX_PCI_STATUS 0x06
#define AX_PCI_REVID 0x08
#define AX_PCI_CLASSCODE 0x09
#define AX_PCI_LATENCY_TIMER 0x0D
#define AX_PCI_HEADER_TYPE 0x0E
#define AX_PCI_LOIO 0x10
#define AX_PCI_LOMEM 0x14
#define AX_PCI_BIOSROM 0x30
#define AX_PCI_INTLINE 0x3C
#define AX_PCI_INTPIN 0x3D
#define AX_PCI_MINGNT 0x3E
#define AX_PCI_MINLAT 0x0F
#define AX_PCI_RESETOPT 0x48
#define AX_PCI_EEPROM_DATA 0x4C
/* power management registers */
#define AX_PCI_CAPID 0x44 /* 8 bits */
#define AX_PCI_NEXTPTR 0x45 /* 8 bits */
#define AX_PCI_PWRMGMTCAP 0x46 /* 16 bits */
#define AX_PCI_PWRMGMTCTRL 0x48 /* 16 bits */
#define AX_PSTATE_MASK 0x0003
#define AX_PSTATE_D0 0x0000
#define AX_PSTATE_D1 0x0001
#define AX_PSTATE_D2 0x0002
#define AX_PSTATE_D3 0x0003
#define AX_PME_EN 0x0010
#define AX_PME_STATUS 0x8000
#define PHY_UNKNOWN 6
#define AX_PHYADDR_MIN 0x00
#define AX_PHYADDR_MAX 0x1F
#define PHY_BMCR 0x00
#define PHY_BMSR 0x01
#define PHY_VENID 0x02
#define PHY_DEVID 0x03
#define PHY_ANAR 0x04
#define PHY_LPAR 0x05
#define PHY_ANEXP 0x06
#define PHY_ANAR_NEXTPAGE 0x8000
#define PHY_ANAR_RSVD0 0x4000
#define PHY_ANAR_TLRFLT 0x2000
#define PHY_ANAR_RSVD1 0x1000
#define PHY_ANAR_RSVD2 0x0800
#define PHY_ANAR_RSVD3 0x0400
#define PHY_ANAR_100BT4 0x0200
#define PHY_ANAR_100BTXFULL 0x0100
#define PHY_ANAR_100BTXHALF 0x0080
#define PHY_ANAR_10BTFULL 0x0040
#define PHY_ANAR_10BTHALF 0x0020
#define PHY_ANAR_PROTO4 0x0010
#define PHY_ANAR_PROTO3 0x0008
#define PHY_ANAR_PROTO2 0x0004
#define PHY_ANAR_PROTO1 0x0002
#define PHY_ANAR_PROTO0 0x0001
/*
* These are the register definitions for the PHY (physical layer
* interface chip).
*/
/*
* PHY BMCR Basic Mode Control Register
*/
#define PHY_BMCR_RESET 0x8000
#define PHY_BMCR_LOOPBK 0x4000
#define PHY_BMCR_SPEEDSEL 0x2000
#define PHY_BMCR_AUTONEGENBL 0x1000
#define PHY_BMCR_RSVD0 0x0800 /* write as zero */
#define PHY_BMCR_ISOLATE 0x0400
#define PHY_BMCR_AUTONEGRSTR 0x0200
#define PHY_BMCR_DUPLEX 0x0100
#define PHY_BMCR_COLLTEST 0x0080
#define PHY_BMCR_RSVD1 0x0040 /* write as zero, don't care */
#define PHY_BMCR_RSVD2 0x0020 /* write as zero, don't care */
#define PHY_BMCR_RSVD3 0x0010 /* write as zero, don't care */
#define PHY_BMCR_RSVD4 0x0008 /* write as zero, don't care */
#define PHY_BMCR_RSVD5 0x0004 /* write as zero, don't care */
#define PHY_BMCR_RSVD6 0x0002 /* write as zero, don't care */
#define PHY_BMCR_RSVD7 0x0001 /* write as zero, don't care */
/*
* RESET: 1 == software reset, 0 == normal operation
* Resets status and control registers to default values.
* Relatches all hardware config values.
*
* LOOPBK: 1 == loopback operation enabled, 0 == normal operation
*
* SPEEDSEL: 1 == 100Mb/s, 0 == 10Mb/s
* Link speed is selected byt his bit or if auto-negotiation if bit
* 12 (AUTONEGENBL) is set (in which case the value of this register
* is ignored).
*
* AUTONEGENBL: 1 == Autonegotiation enabled, 0 == Autonegotiation disabled
* Bits 8 and 13 are ignored when autoneg is set, otherwise bits 8 and 13
* determine speed and mode. Should be cleared and then set if PHY configured
* for no autoneg on startup.
*
* ISOLATE: 1 == isolate PHY from MII, 0 == normal operation
*
* AUTONEGRSTR: 1 == restart autonegotiation, 0 = normal operation
*
* DUPLEX: 1 == full duplex mode, 0 == half duplex mode
*
* COLLTEST: 1 == collision test enabled, 0 == normal operation
*/
/*
* PHY, BMSR Basic Mode Status Register
*/
#define PHY_BMSR_100BT4 0x8000
#define PHY_BMSR_100BTXFULL 0x4000
#define PHY_BMSR_100BTXHALF 0x2000
#define PHY_BMSR_10BTFULL 0x1000
#define PHY_BMSR_10BTHALF 0x0800
#define PHY_BMSR_RSVD1 0x0400 /* write as zero, don't care */
#define PHY_BMSR_RSVD2 0x0200 /* write as zero, don't care */
#define PHY_BMSR_RSVD3 0x0100 /* write as zero, don't care */
#define PHY_BMSR_RSVD4 0x0080 /* write as zero, don't care */
#define PHY_BMSR_MFPRESUP 0x0040
#define PHY_BMSR_AUTONEGCOMP 0x0020
#define PHY_BMSR_REMFAULT 0x0010
#define PHY_BMSR_CANAUTONEG 0x0008
#define PHY_BMSR_LINKSTAT 0x0004
#define PHY_BMSR_JABBER 0x0002
#define PHY_BMSR_EXTENDED 0x0001
#ifdef __alpha__
#undef vtophys
#define vtophys(va) (pmap_kextract(((vm_offset_t) (va))) \
+ 1*1024*1024*1024)
#endif
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