/* * Copyright (c) 1997, 1998, 1999 * Bill Paul . 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. * * $FreeBSD: src/sys/pci/if_dcreg.h,v 1.4.2.22 2003/06/07 16:55:35 mbr Exp $ */ /* * 21143 and clone common register definitions. */ #define DC_BUSCTL 0x00 /* bus control */ #define DC_TXSTART 0x08 /* tx start demand */ #define DC_RXSTART 0x10 /* rx start demand */ #define DC_RXADDR 0x18 /* rx descriptor list start addr */ #define DC_TXADDR 0x20 /* tx descriptor list start addr */ #define DC_ISR 0x28 /* interrupt status register */ #define DC_NETCFG 0x30 /* network config register */ #define DC_IMR 0x38 /* interrupt mask */ #define DC_FRAMESDISCARDED 0x40 /* # of discarded frames */ #define DC_SIO 0x48 /* MII and ROM/EEPROM access */ #define DC_ROM 0x50 /* ROM programming address */ #define DC_TIMER 0x58 /* general timer */ #define DC_10BTSTAT 0x60 /* SIA status */ #define DC_SIARESET 0x68 /* SIA connectivity */ #define DC_10BTCTRL 0x70 /* SIA transmit and receive */ #define DC_WATCHDOG 0x78 /* SIA and general purpose port */ #define DC_SIAGP 0x78 /* SIA and general purpose port (X3201) */ /* * There are two general 'types' of MX chips that we need to be * concerned with. One is the original 98713, which has its internal * NWAY support controlled via the MDIO bits in the serial I/O * register. The other is everything else (from the 98713A on up), * which has its internal NWAY controlled via CSR13, CSR14 and CSR15, * just like the 21143. This type setting also governs which of the * 'magic' numbers we write to CSR16. The PNIC II falls into the * 98713A/98715/98715A/98725 category. */ #define DC_TYPE_98713 0x1 #define DC_TYPE_98713A 0x2 #define DC_TYPE_987x5 0x3 /* Other type of supported chips. */ #define DC_TYPE_21143 0x4 /* Intel 21143 */ #define DC_TYPE_ASIX 0x5 /* ASIX AX88140A/AX88141 */ #define DC_TYPE_AL981 0x6 /* ADMtek AL981 Comet */ #define DC_TYPE_AN985 0x7 /* ADMtek AN985 Centaur */ #define DC_TYPE_DM9102 0x8 /* Davicom DM9102 */ #define DC_TYPE_PNICII 0x9 /* 82c115 PNIC II */ #define DC_TYPE_PNIC 0xA /* 82c168/82c169 PNIC I */ #define DC_TYPE_XIRCOM 0xB /* Xircom X3201 */ #define DC_TYPE_CONEXANT 0xC /* Conexant LANfinity RS7112 */ #define DC_IS_MACRONIX(x) \ (x->dc_type == DC_TYPE_98713 || \ x->dc_type == DC_TYPE_98713A || \ x->dc_type == DC_TYPE_987x5) #define DC_IS_ADMTEK(x) \ (x->dc_type == DC_TYPE_AL981 || \ x->dc_type == DC_TYPE_AN985) #define DC_IS_INTEL(x) (x->dc_type == DC_TYPE_21143) #define DC_IS_ASIX(x) (x->dc_type == DC_TYPE_ASIX) #define DC_IS_COMET(x) (x->dc_type == DC_TYPE_AL981) #define DC_IS_CENTAUR(x) (x->dc_type == DC_TYPE_AN985) #define DC_IS_DAVICOM(x) (x->dc_type == DC_TYPE_DM9102) #define DC_IS_PNICII(x) (x->dc_type == DC_TYPE_PNICII) #define DC_IS_PNIC(x) (x->dc_type == DC_TYPE_PNIC) #define DC_IS_XIRCOM(x) (x->dc_type == DC_TYPE_XIRCOM) #define DC_IS_CONEXANT(x) (x->dc_type == DC_TYPE_CONEXANT) /* MII/symbol mode port types */ #define DC_PMODE_MII 0x1 #define DC_PMODE_SYM 0x2 #define DC_PMODE_SIA 0x3 /* * Bus control bits. */ #define DC_BUSCTL_RESET 0x00000001 #define DC_BUSCTL_ARBITRATION 0x00000002 #define DC_BUSCTL_SKIPLEN 0x0000007C #define DC_BUSCTL_BUF_BIGENDIAN 0x00000080 #define DC_BUSCTL_BURSTLEN 0x00003F00 #define DC_BUSCTL_CACHEALIGN 0x0000C000 #define DC_BUSCTL_TXPOLL 0x000E0000 #define DC_BUSCTL_DBO 0x00100000 #define DC_BUSCTL_MRME 0x00200000 #define DC_BUSCTL_MRLE 0x00800000 #define DC_BUSCTL_MWIE 0x01000000 #define DC_BUSCTL_ONNOW_ENB 0x04000000 #define DC_SKIPLEN_1LONG 0x00000004 #define DC_SKIPLEN_2LONG 0x00000008 #define DC_SKIPLEN_3LONG 0x00000010 #define DC_SKIPLEN_4LONG 0x00000020 #define DC_SKIPLEN_5LONG 0x00000040 #define DC_CACHEALIGN_NONE 0x00000000 #define DC_CACHEALIGN_8LONG 0x00004000 #define DC_CACHEALIGN_16LONG 0x00008000 #define DC_CACHEALIGN_32LONG 0x0000C000 #define DC_BURSTLEN_USECA 0x00000000 #define DC_BURSTLEN_1LONG 0x00000100 #define DC_BURSTLEN_2LONG 0x00000200 #define DC_BURSTLEN_4LONG 0x00000400 #define DC_BURSTLEN_8LONG 0x00000800 #define DC_BURSTLEN_16LONG 0x00001000 #define DC_BURSTLEN_32LONG 0x00002000 #define DC_TXPOLL_OFF 0x00000000 #define DC_TXPOLL_1 0x00020000 #define DC_TXPOLL_2 0x00040000 #define DC_TXPOLL_3 0x00060000 #define DC_TXPOLL_4 0x00080000 #define DC_TXPOLL_5 0x000A0000 #define DC_TXPOLL_6 0x000C0000 #define DC_TXPOLL_7 0x000E0000 /* * Interrupt status bits. */ #define DC_ISR_TX_OK 0x00000001 #define DC_ISR_TX_IDLE 0x00000002 #define DC_ISR_TX_NOBUF 0x00000004 #define DC_ISR_TX_JABBERTIMEO 0x00000008 #define DC_ISR_LINKGOOD 0x00000010 #define DC_ISR_TX_UNDERRUN 0x00000020 #define DC_ISR_RX_OK 0x00000040 #define DC_ISR_RX_NOBUF 0x00000080 #define DC_ISR_RX_READ 0x00000100 #define DC_ISR_RX_WATDOGTIMEO 0x00000200 #define DC_ISR_TX_EARLY 0x00000400 #define DC_ISR_TIMER_EXPIRED 0x00000800 #define DC_ISR_LINKFAIL 0x00001000 #define DC_ISR_BUS_ERR 0x00002000 #define DC_ISR_RX_EARLY 0x00004000 #define DC_ISR_ABNORMAL 0x00008000 #define DC_ISR_NORMAL 0x00010000 #define DC_ISR_RX_STATE 0x000E0000 #define DC_ISR_TX_STATE 0x00700000 #define DC_ISR_BUSERRTYPE 0x03800000 #define DC_ISR_100MBPSLINK 0x08000000 #define DC_ISR_MAGICKPACK 0x10000000 #define DC_RXSTATE_STOPPED 0x00000000 /* 000 - Stopped */ #define DC_RXSTATE_FETCH 0x00020000 /* 001 - Fetching descriptor */ #define DC_RXSTATE_ENDCHECK 0x00040000 /* 010 - check for rx end */ #define DC_RXSTATE_WAIT 0x00060000 /* 011 - waiting for packet */ #define DC_RXSTATE_SUSPEND 0x00080000 /* 100 - suspend rx */ #define DC_RXSTATE_CLOSE 0x000A0000 /* 101 - close tx desc */ #define DC_RXSTATE_FLUSH 0x000C0000 /* 110 - flush from FIFO */ #define DC_RXSTATE_DEQUEUE 0x000E0000 /* 111 - dequeue from FIFO */ #define DC_TXSTATE_RESET 0x00000000 /* 000 - reset */ #define DC_TXSTATE_FETCH 0x00100000 /* 001 - fetching descriptor */ #define DC_TXSTATE_WAITEND 0x00200000 /* 010 - wait for tx end */ #define DC_TXSTATE_READING 0x00300000 /* 011 - read and enqueue */ #define DC_TXSTATE_RSVD 0x00400000 /* 100 - reserved */ #define DC_TXSTATE_SETUP 0x00500000 /* 101 - setup packet */ #define DC_TXSTATE_SUSPEND 0x00600000 /* 110 - suspend tx */ #define DC_TXSTATE_CLOSE 0x00700000 /* 111 - close tx desc */ /* * Network config bits. */ #define DC_NETCFG_RX_HASHPERF 0x00000001 #define DC_NETCFG_RX_ON 0x00000002 #define DC_NETCFG_RX_HASHONLY 0x00000004 #define DC_NETCFG_RX_BADFRAMES 0x00000008 #define DC_NETCFG_RX_INVFILT 0x00000010 #define DC_NETCFG_BACKOFFCNT 0x00000020 #define DC_NETCFG_RX_PROMISC 0x00000040 #define DC_NETCFG_RX_ALLMULTI 0x00000080 #define DC_NETCFG_FULLDUPLEX 0x00000200 #define DC_NETCFG_LOOPBACK 0x00000C00 #define DC_NETCFG_FORCECOLL 0x00001000 #define DC_NETCFG_TX_ON 0x00002000 #define DC_NETCFG_TX_THRESH 0x0000C000 #define DC_NETCFG_TX_BACKOFF 0x00020000 #define DC_NETCFG_PORTSEL 0x00040000 /* 0 == 10, 1 == 100 */ #define DC_NETCFG_HEARTBEAT 0x00080000 #define DC_NETCFG_STORENFWD 0x00200000 #define DC_NETCFG_SPEEDSEL 0x00400000 /* 1 == 10, 0 == 100 */ #define DC_NETCFG_PCS 0x00800000 #define DC_NETCFG_SCRAMBLER 0x01000000 #define DC_NETCFG_NO_RXCRC 0x02000000 #define DC_NETCFG_RX_ALL 0x40000000 #define DC_NETCFG_CAPEFFECT 0x80000000 #define DC_OPMODE_NORM 0x00000000 #define DC_OPMODE_INTLOOP 0x00000400 #define DC_OPMODE_EXTLOOP 0x00000800 #if 0 #define DC_TXTHRESH_72BYTES 0x00000000 #define DC_TXTHRESH_96BYTES 0x00004000 #define DC_TXTHRESH_128BYTES 0x00008000 #define DC_TXTHRESH_160BYTES 0x0000C000 #endif #define DC_TXTHRESH_MIN 0x00000000 #define DC_TXTHRESH_INC 0x00004000 #define DC_TXTHRESH_MAX 0x0000C000 /* * Interrupt mask bits. */ #define DC_IMR_TX_OK 0x00000001 #define DC_IMR_TX_IDLE 0x00000002 #define DC_IMR_TX_NOBUF 0x00000004 #define DC_IMR_TX_JABBERTIMEO 0x00000008 #define DC_IMR_LINKGOOD 0x00000010 #define DC_IMR_TX_UNDERRUN 0x00000020 #define DC_IMR_RX_OK 0x00000040 #define DC_IMR_RX_NOBUF 0x00000080 #define DC_IMR_RX_READ 0x00000100 #define DC_IMR_RX_WATDOGTIMEO 0x00000200 #define DC_IMR_TX_EARLY 0x00000400 #define DC_IMR_TIMER_EXPIRED 0x00000800 #define DC_IMR_LINKFAIL 0x00001000 #define DC_IMR_BUS_ERR 0x00002000 #define DC_IMR_RX_EARLY 0x00004000 #define DC_IMR_ABNORMAL 0x00008000 #define DC_IMR_NORMAL 0x00010000 #define DC_IMR_100MBPSLINK 0x08000000 #define DC_IMR_MAGICKPACK 0x10000000 #define DC_INTRS \ (DC_IMR_RX_OK|DC_IMR_TX_OK|DC_IMR_RX_NOBUF|DC_IMR_RX_WATDOGTIMEO|\ DC_IMR_TX_NOBUF|DC_IMR_TX_UNDERRUN|DC_IMR_BUS_ERR| \ DC_IMR_ABNORMAL|DC_IMR_NORMAL/*|DC_IMR_TX_EARLY*/) /* * Serial I/O (EEPROM/ROM) bits. */ #define DC_SIO_EE_CS 0x00000001 /* EEPROM chip select */ #define DC_SIO_EE_CLK 0x00000002 /* EEPROM clock */ #define DC_SIO_EE_DATAIN 0x00000004 /* EEPROM data output */ #define DC_SIO_EE_DATAOUT 0x00000008 /* EEPROM data input */ #define DC_SIO_ROMDATA4 0x00000010 #define DC_SIO_ROMDATA5 0x00000020 #define DC_SIO_ROMDATA6 0x00000040 #define DC_SIO_ROMDATA7 0x00000080 #define DC_SIO_EESEL 0x00000800 #define DC_SIO_ROMSEL 0x00001000 #define DC_SIO_ROMCTL_WRITE 0x00002000 #define DC_SIO_ROMCTL_READ 0x00004000 #define DC_SIO_MII_CLK 0x00010000 /* MDIO clock */ #define DC_SIO_MII_DATAOUT 0x00020000 /* MDIO data out */ #define DC_SIO_MII_DIR 0x00040000 /* MDIO dir */ #define DC_SIO_MII_DATAIN 0x00080000 /* MDIO data in */ #define DC_EECMD_WRITE 0x140 #define DC_EECMD_READ 0x180 #define DC_EECMD_ERASE 0x1c0 #define DC_EE_NODEADDR_OFFSET 0x70 #define DC_EE_NODEADDR 10 /* * General purpose timer register */ #define DC_TIMER_VALUE 0x0000FFFF #define DC_TIMER_CONTINUOUS 0x00010000 /* * 10baseT status register */ #define DC_TSTAT_MIIACT 0x00000001 /* MII port activity */ #define DC_TSTAT_LS100 0x00000002 /* link status of 100baseTX */ #define DC_TSTAT_LS10 0x00000004 /* link status of 10baseT */ #define DC_TSTAT_AUTOPOLARITY 0x00000008 #define DC_TSTAT_AUIACT 0x00000100 /* AUI activity */ #define DC_TSTAT_10BTACT 0x00000200 /* 10baseT activity */ #define DC_TSTAT_NSN 0x00000400 /* non-stable FLPs detected */ #define DC_TSTAT_REMFAULT 0x00000800 #define DC_TSTAT_ANEGSTAT 0x00007000 #define DC_TSTAT_LP_CAN_NWAY 0x00008000 /* link partner supports NWAY */ #define DC_TSTAT_LPCODEWORD 0xFFFF0000 /* link partner's code word */ #define DC_ASTAT_DISABLE 0x00000000 #define DC_ASTAT_TXDISABLE 0x00001000 #define DC_ASTAT_ABDETECT 0x00002000 #define DC_ASTAT_ACKDETECT 0x00003000 #define DC_ASTAT_CMPACKDETECT 0x00004000 #define DC_ASTAT_AUTONEGCMP 0x00005000 #define DC_ASTAT_LINKCHECK 0x00006000 /* * PHY reset register */ #define DC_SIA_RESET 0x00000001 #define DC_SIA_AUI 0x00000008 /* AUI or 10baseT */ /* * 10baseT control register */ #define DC_TCTL_ENCODER_ENB 0x00000001 #define DC_TCTL_LOOPBACK 0x00000002 #define DC_TCTL_DRIVER_ENB 0x00000004 #define DC_TCTL_LNKPULSE_ENB 0x00000008 #define DC_TCTL_HALFDUPLEX 0x00000040 #define DC_TCTL_AUTONEGENBL 0x00000080 #define DC_TCTL_RX_SQUELCH 0x00000100 #define DC_TCTL_COLL_SQUELCH 0x00000200 #define DC_TCTL_COLL_DETECT 0x00000400 #define DC_TCTL_SQE_ENB 0x00000800 #define DC_TCTL_LINKTEST 0x00001000 #define DC_TCTL_AUTOPOLARITY 0x00002000 #define DC_TCTL_SET_POL_PLUS 0x00004000 #define DC_TCTL_AUTOSENSE 0x00008000 /* 10bt/AUI autosense */ #define DC_TCTL_100BTXHALF 0x00010000 #define DC_TCTL_100BTXFULL 0x00020000 #define DC_TCTL_100BT4 0x00040000 /* * Watchdog timer register */ #define DC_WDOG_JABBERDIS 0x00000001 #define DC_WDOG_HOSTUNJAB 0x00000002 #define DC_WDOG_JABBERCLK 0x00000004 #define DC_WDOG_RXWDOGDIS 0x00000010 #define DC_WDOG_RXWDOGCLK 0x00000020 #define DC_WDOG_MUSTBEZERO 0x00000100 #define DC_WDOG_AUIBNC 0x00100000 #define DC_WDOG_ACTIVITY 0x00200000 #define DC_WDOG_RX_MATCH 0x00400000 #define DC_WDOG_LINK 0x00800000 #define DC_WDOG_CTLWREN 0x08000000 /* * SIA and General Purpose Port register (X3201) */ #define DC_SIAGP_RXMATCH 0x40000000 #define DC_SIAGP_INT1 0x20000000 #define DC_SIAGP_INT0 0x10000000 #define DC_SIAGP_WRITE_EN 0x08000000 #define DC_SIAGP_RXMATCH_EN 0x04000000 #define DC_SIAGP_INT1_EN 0x02000000 #define DC_SIAGP_INT0_EN 0x01000000 #define DC_SIAGP_LED3 0x00800000 #define DC_SIAGP_LED2 0x00400000 #define DC_SIAGP_LED1 0x00200000 #define DC_SIAGP_LED0 0x00100000 #define DC_SIAGP_MD_GP3_OUTPUT 0x00080000 #define DC_SIAGP_MD_GP2_OUTPUT 0x00040000 #define DC_SIAGP_MD_GP1_OUTPUT 0x00020000 #define DC_SIAGP_MD_GP0_OUTPUT 0x00010000 /* * Size of a setup frame. */ #define DC_SFRAME_LEN 192 /* * 21x4x TX/RX list structure. */ struct dc_desc { u_int32_t dc_status; u_int32_t dc_ctl; u_int32_t dc_ptr1; u_int32_t dc_ptr2; }; #define dc_data dc_ptr1 #define dc_next dc_ptr2 #define DC_RXSTAT_FIFOOFLOW 0x00000001 #define DC_RXSTAT_CRCERR 0x00000002 #define DC_RXSTAT_DRIBBLE 0x00000004 #define DC_RXSTAT_MIIERE 0x00000008 #define DC_RXSTAT_WATCHDOG 0x00000010 #define DC_RXSTAT_FRAMETYPE 0x00000020 /* 0 == IEEE 802.3 */ #define DC_RXSTAT_COLLSEEN 0x00000040 #define DC_RXSTAT_GIANT 0x00000080 #define DC_RXSTAT_LASTFRAG 0x00000100 #define DC_RXSTAT_FIRSTFRAG 0x00000200 #define DC_RXSTAT_MULTICAST 0x00000400 #define DC_RXSTAT_RUNT 0x00000800 #define DC_RXSTAT_RXTYPE 0x00003000 #define DC_RXSTAT_DE 0x00004000 #define DC_RXSTAT_RXERR 0x00008000 #define DC_RXSTAT_RXLEN 0x3FFF0000 #define DC_RXSTAT_OWN 0x80000000 #define DC_RXBYTES(x) ((x & DC_RXSTAT_RXLEN) >> 16) #define DC_RXSTAT (DC_RXSTAT_FIRSTFRAG|DC_RXSTAT_LASTFRAG|DC_RXSTAT_OWN) #define DC_RXCTL_BUFLEN1 0x00000FFF #define DC_RXCTL_BUFLEN2 0x00FFF000 #define DC_RXCTL_RLINK 0x01000000 #define DC_RXCTL_RLAST 0x02000000 #define DC_TXSTAT_DEFER 0x00000001 #define DC_TXSTAT_UNDERRUN 0x00000002 #define DC_TXSTAT_LINKFAIL 0x00000003 #define DC_TXSTAT_COLLCNT 0x00000078 #define DC_TXSTAT_SQE 0x00000080 #define DC_TXSTAT_EXCESSCOLL 0x00000100 #define DC_TXSTAT_LATECOLL 0x00000200 #define DC_TXSTAT_NOCARRIER 0x00000400 #define DC_TXSTAT_CARRLOST 0x00000800 #define DC_TXSTAT_JABTIMEO 0x00004000 #define DC_TXSTAT_ERRSUM 0x00008000 #define DC_TXSTAT_OWN 0x80000000 #define DC_TXCTL_BUFLEN1 0x000007FF #define DC_TXCTL_BUFLEN2 0x003FF800 #define DC_TXCTL_FILTTYPE0 0x00400000 #define DC_TXCTL_PAD 0x00800000 #define DC_TXCTL_TLINK 0x01000000 #define DC_TXCTL_TLAST 0x02000000 #define DC_TXCTL_NOCRC 0x04000000 #define DC_TXCTL_SETUP 0x08000000 #define DC_TXCTL_FILTTYPE1 0x10000000 #define DC_TXCTL_FIRSTFRAG 0x20000000 #define DC_TXCTL_LASTFRAG 0x40000000 #define DC_TXCTL_FINT 0x80000000 #define DC_FILTER_PERFECT 0x00000000 #define DC_FILTER_HASHPERF 0x00400000 #define DC_FILTER_INVERSE 0x10000000 #define DC_FILTER_HASHONLY 0x10400000 #define DC_MAXFRAGS 16 #ifdef IFPOLL_ENABLE #define DC_RX_LIST_CNT 192 #else #define DC_RX_LIST_CNT 64 #endif #define DC_TX_LIST_CNT 256 #define DC_MIN_FRAMELEN 60 #define DC_RXLEN 1536 #define DC_INC(x, y) (x) = (x + 1) % y struct dc_list_data { struct dc_desc dc_rx_list[DC_RX_LIST_CNT]; struct dc_desc dc_tx_list[DC_TX_LIST_CNT]; }; struct dc_chain_data { struct mbuf *dc_rx_chain[DC_RX_LIST_CNT]; struct mbuf *dc_tx_chain[DC_TX_LIST_CNT]; u_int32_t dc_sbuf[DC_SFRAME_LEN/sizeof(u_int32_t)]; u_int8_t dc_pad[DC_MIN_FRAMELEN]; int dc_tx_prod; int dc_tx_cons; int dc_tx_cnt; int dc_rx_prod; }; struct dc_mediainfo { int dc_media; u_int8_t *dc_gp_ptr; u_int8_t dc_gp_len; u_int8_t *dc_reset_ptr; u_int8_t dc_reset_len; struct dc_mediainfo *dc_next; }; struct dc_type { uint16_t dc_vid; uint16_t dc_did; const char *dc_name; }; struct dc_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 DC_MII_STARTDELIM 0x01 #define DC_MII_READOP 0x02 #define DC_MII_WRITEOP 0x01 #define DC_MII_TURNAROUND 0x02 /* * Registers specific to clone devices. * This mainly relates to RX filter programming: not all 21x4x clones * use the standard DEC filter programming mechanism. */ /* * ADMtek specific registers and constants for the AL981 and AN985. * The AN985 doesn't use the magic PHY registers. */ #define DC_AL_CR 0x88 /* command register */ #define DC_AL_PAR0 0xA4 /* station address */ #define DC_AL_PAR1 0xA8 /* station address */ #define DC_AL_MAR0 0xAC /* multicast hash filter */ #define DC_AL_MAR1 0xB0 /* multicast hash filter */ #define DC_AL_BMCR 0xB4 /* built in PHY control */ #define DC_AL_BMSR 0xB8 /* built in PHY status */ #define DC_AL_VENID 0xBC /* built in PHY ID0 */ #define DC_AL_DEVID 0xC0 /* built in PHY ID1 */ #define DC_AL_ANAR 0xC4 /* built in PHY autoneg advert */ #define DC_AL_LPAR 0xC8 /* bnilt in PHY link part. ability */ #define DC_AL_ANER 0xCC /* built in PHY autoneg expansion */ #define DC_AL_CR_ATUR 0x00000001 /* automatic TX underrun recovery */ #define DC_ADMTEK_PHYADDR 0x1 #define DC_AL_EE_NODEADDR 4 /* End of ADMtek specific registers */ /* * ASIX specific registers. */ #define DC_AX_FILTIDX 0x68 /* RX filter index */ #define DC_AX_FILTDATA 0x70 /* RX filter data */ /* * Special ASIX-specific bits in the ASIX NETCFG register (CSR6). */ #define DC_AX_NETCFG_RX_BROAD 0x00000100 /* * RX Filter Index Register values */ #define DC_AX_FILTIDX_PAR0 0x00000000 #define DC_AX_FILTIDX_PAR1 0x00000001 #define DC_AX_FILTIDX_MAR0 0x00000002 #define DC_AX_FILTIDX_MAR1 0x00000003 /* End of ASIX specific registers */ /* * Macronix specific registers. The Macronix chips have a special * register for reading the NWAY status, which we don't use, plus * a magic packet register, which we need to tweak a bit per the * Macronix application notes. */ #define DC_MX_MAGICPACKET 0x80 #define DC_MX_NWAYSTAT 0xA0 /* * Magic packet register */ #define DC_MX_MPACK_DISABLE 0x00400000 /* * NWAY status register. */ #define DC_MX_NWAY_10BTHALF 0x08000000 #define DC_MX_NWAY_10BTFULL 0x10000000 #define DC_MX_NWAY_100BTHALF 0x20000000 #define DC_MX_NWAY_100BTFULL 0x40000000 #define DC_MX_NWAY_100BT4 0x80000000 /* * These are magic values that must be written into CSR16 * (DC_MX_MAGICPACKET) in order to put the chip into proper * operating mode. The magic numbers are documented in the * Macronix 98715 application notes. */ #define DC_MX_MAGIC_98713 0x0F370000 #define DC_MX_MAGIC_98713A 0x0B3C0000 #define DC_MX_MAGIC_98715 0x0B3C0000 #define DC_MX_MAGIC_98725 0x0B3C0000 /* End of Macronix specific registers */ /* * PNIC 82c168/82c169 specific registers. * The PNIC has its own special NWAY support, which doesn't work, * and shortcut ways of reading the EEPROM and MII bus. */ #define DC_PN_GPIO 0x60 /* general purpose pins control */ #define DC_PN_PWRUP_CFG 0x90 /* config register, set by EEPROM */ #define DC_PN_SIOCTL 0x98 /* serial EEPROM control register */ #define DC_PN_MII 0xA0 /* MII access register */ #define DC_PN_NWAY 0xB8 /* Internal NWAY register */ /* Serial I/O EEPROM register */ #define DC_PN_SIOCTL_DATA 0x0000003F #define DC_PN_SIOCTL_OPCODE 0x00000300 #define DC_PN_SIOCTL_BUSY 0x80000000 #define DC_PN_EEOPCODE_ERASE 0x00000300 #define DC_PN_EEOPCODE_READ 0x00000600 #define DC_PN_EEOPCODE_WRITE 0x00000100 /* * The first two general purpose pins control speed selection and * 100Mbps loopback on the 82c168 chip. The control bits should always * be set (to make the data pins outputs) and the speed selction and * loopback bits set accordingly when changing media. Physically, this * will set the state of a relay mounted on the card. */ #define DC_PN_GPIO_DATA0 0x000000001 #define DC_PN_GPIO_DATA1 0x000000002 #define DC_PN_GPIO_DATA2 0x000000004 #define DC_PN_GPIO_DATA3 0x000000008 #define DC_PN_GPIO_CTL0 0x000000010 #define DC_PN_GPIO_CTL1 0x000000020 #define DC_PN_GPIO_CTL2 0x000000040 #define DC_PN_GPIO_CTL3 0x000000080 #define DC_PN_GPIO_SPEEDSEL DC_PN_GPIO_DATA0/* 1 == 100Mbps, 0 == 10Mbps */ #define DC_PN_GPIO_100TX_LOOP DC_PN_GPIO_DATA1/* 1 == normal, 0 == loop */ #define DC_PN_GPIO_BNC_ENB DC_PN_GPIO_DATA2 #define DC_PN_GPIO_100TX_LNK DC_PN_GPIO_DATA3 #define DC_PN_GPIO_SETBIT(sc, r) \ DC_SETBIT(sc, DC_PN_GPIO, ((r) | (r << 4))) #define DC_PN_GPIO_CLRBIT(sc, r) \ { \ DC_SETBIT(sc, DC_PN_GPIO, ((r) << 4)); \ DC_CLRBIT(sc, DC_PN_GPIO, (r)); \ } /* shortcut MII access register */ #define DC_PN_MII_DATA 0x0000FFFF #define DC_PN_MII_RESERVER 0x00020000 #define DC_PN_MII_REGADDR 0x007C0000 #define DC_PN_MII_PHYADDR 0x0F800000 #define DC_PN_MII_OPCODE 0x30000000 #define DC_PN_MII_BUSY 0x80000000 #define DC_PN_MIIOPCODE_READ 0x60020000 #define DC_PN_MIIOPCODE_WRITE 0x50020000 /* Internal NWAY bits */ #define DC_PN_NWAY_RESET 0x00000001 /* reset */ #define DC_PN_NWAY_PDOWN 0x00000002 /* power down */ #define DC_PN_NWAY_BYPASS 0x00000004 /* bypass */ #define DC_PN_NWAY_AUILOWCUR 0x00000008 /* AUI low current */ #define DC_PN_NWAY_TPEXTEND 0x00000010 /* low squelch voltage */ #define DC_PN_NWAY_POLARITY 0x00000020 /* 0 == on, 1 == off */ #define DC_PN_NWAY_TP 0x00000040 /* 1 == tp, 0 == AUI */ #define DC_PN_NWAY_AUIVOLT 0x00000080 /* 1 == full, 0 == half */ #define DC_PN_NWAY_DUPLEX 0x00000100 /* LED, 1 == full, 0 == half */ #define DC_PN_NWAY_LINKTEST 0x00000200 /* 0 == on, 1 == off */ #define DC_PN_NWAY_AUTODETECT 0x00000400 /* 1 == off, 0 == on */ #define DC_PN_NWAY_SPEEDSEL 0x00000800 /* LED, 0 = 10, 1 == 100 */ #define DC_PN_NWAY_NWAY_ENB 0x00001000 /* 0 == off, 1 == on */ #define DC_PN_NWAY_CAP10HDX 0x00002000 #define DC_PN_NWAY_CAP10FDX 0x00004000 #define DC_PN_NWAY_CAP100FDX 0x00008000 #define DC_PN_NWAY_CAP100HDX 0x00010000 #define DC_PN_NWAY_CAP100T4 0x00020000 #define DC_PN_NWAY_ANEGRESTART 0x02000000 /* resets when aneg done */ #define DC_PN_NWAY_REMFAULT 0x04000000 #define DC_PN_NWAY_LPAR10HDX 0x08000000 #define DC_PN_NWAY_LPAR10FDX 0x10000000 #define DC_PN_NWAY_LPAR100FDX 0x20000000 #define DC_PN_NWAY_LPAR100HDX 0x40000000 #define DC_PN_NWAY_LPAR100T4 0x80000000 /* End of PNIC specific registers */ /* * CONEXANT specific registers. */ #define DC_CONEXANT_PHYADDR 0x1 #define DC_CONEXANT_EE_NODEADDR 0x19A /* End of CONEXANT specific registers */ struct dc_softc { struct arpcom arpcom; /* interface info */ bus_space_handle_t dc_bhandle; /* bus space handle */ bus_space_tag_t dc_btag; /* bus space tag */ void *dc_intrhand; struct resource *dc_irq; struct resource *dc_res; const struct dc_type *dc_info; /* adapter info */ device_t dc_miibus; u_int8_t dc_type; u_int8_t dc_pmode; u_int8_t dc_link; u_int8_t dc_cachesize; int dc_romwidth; int dc_pnic_rx_bug_save; unsigned char *dc_pnic_rx_buf; int dc_if_flags; int dc_if_media; u_int32_t dc_flags; u_int32_t dc_txthresh; u_int8_t *dc_srom; struct dc_mediainfo *dc_mi; struct ifpoll_compat dc_npoll; struct dc_list_data *dc_ldata; struct dc_chain_data dc_cdata; struct callout dc_stat_timer; int rxcycles; /* ... when polling */ int suspended; /* 0 = normal 1 = suspended */ u_int32_t saved_maps[5]; /* pci data */ u_int32_t saved_biosaddr; u_int8_t saved_intline; u_int8_t saved_cachelnsz; u_int8_t saved_lattimer; }; #define DC_TX_POLL 0x00000001 #define DC_TX_COALESCE 0x00000002 #define DC_TX_ADMTEK_WAR 0x00000004 #define DC_TX_USE_TX_INTR 0x00000008 #define DC_RX_FILTER_TULIP 0x00000010 #define DC_TX_INTR_FIRSTFRAG 0x00000020 #define DC_PNIC_RX_BUG_WAR 0x00000040 #define DC_TX_FIXED_RING 0x00000080 #define DC_TX_STORENFWD 0x00000100 #define DC_REDUCED_MII_POLL 0x00000200 #define DC_TX_INTR_ALWAYS 0x00000400 #define DC_21143_NWAY 0x00000800 #define DC_128BIT_HASH 0x00001000 #define DC_64BIT_HASH 0x00002000 #define DC_TULIP_LEDS 0x00004000 #define DC_TX_ONE 0x00008000 #define DC_TX_ALIGN 0x00010000 /* * register space access macros */ #define CSR_WRITE_4(sc, reg, val) \ bus_space_write_4(sc->dc_btag, sc->dc_bhandle, reg, val) #define CSR_READ_4(sc, reg) \ bus_space_read_4(sc->dc_btag, sc->dc_bhandle, reg) #define DC_TIMEOUT 1000 #define ETHER_ALIGN 2 /* * General constants that are fun to know. */ /* * DEC PCI vendor ID */ #define DC_VENDORID_DEC 0x1011 /* * DEC/Intel 21143 PCI device ID */ #define DC_DEVICEID_21143 0x0019 /* * Macronix PCI vendor ID */ #define DC_VENDORID_MX 0x10D9 /* * Macronix PMAC device IDs. */ #define DC_DEVICEID_98713 0x0512 #define DC_DEVICEID_987x5 0x0531 #define DC_DEVICEID_98727 0x0532 #define DC_DEVICEID_98732 0x0532 /* Macronix PCI revision codes. */ #define DC_REVISION_98713 0x00 #define DC_REVISION_98713A 0x10 #define DC_REVISION_98715 0x20 #define DC_REVISION_98715AEC_C 0x25 #define DC_REVISION_98725 0x30 /* * Compex PCI vendor ID. */ #define DC_VENDORID_CP 0x11F6 /* * Compex PMAC PCI device IDs. */ #define DC_DEVICEID_98713_CP 0x9881 /* * Lite-On PNIC PCI vendor ID */ #define DC_VENDORID_LO 0x11AD /* * 82c168/82c169 PNIC device IDs. Both chips have the same device * ID but different revisions. Revision 0x10 is the 82c168, and * 0x20 is the 82c169. */ #define DC_DEVICEID_82C168 0x0002 #define DC_REVISION_82C168 0x10 #define DC_REVISION_82C169 0x20 /* * Lite-On PNIC II device ID. Note: this is actually a Macronix 98715A * with wake on lan/magic packet support. */ #define DC_DEVICEID_82C115 0xc115 /* * Davicom vendor ID. */ #define DC_VENDORID_DAVICOM 0x1282 /* * Davicom device IDs. */ #define DC_DEVICEID_DM9009 0x9009 #define DC_DEVICEID_DM9100 0x9100 #define DC_DEVICEID_DM9102 0x9102 /* * The DM9102A has the same PCI device ID as the DM9102, * but a higher revision code. */ #define DC_REVISION_DM9102 0x10 #define DC_REVISION_DM9102A 0x30 /* * ADMtek vendor ID. */ #define DC_VENDORID_ADMTEK 0x1317 /* * ADMtek device IDs. */ #define DC_DEVICEID_AL981 0x0981 #define DC_DEVICEID_AN985 0x0985 #define DC_DEVICEID_FA511 0x1985 #define DC_DEVICEID_ADM9511 0x9511 #define DC_DEVICEID_ADM9513 0x9513 /* * Abocom vendor ID */ #define DC_VENDORID_ABOCOM 0x13d1 /* * Abocom device IDs. */ #define DC_DEVICEID_FE2500 0xAB02 /* * 3COM PCI vendor ID */ #define DC_VENDORID_3COM 0x10b7 /* * 3COM OfficeConnect 10/100B (3CSOHO100B-TX) */ #define DC_DEVICEID_3CSOHOB 0x9300 /* * ASIX vendor ID. */ #define DC_VENDORID_ASIX 0x125B /* * ASIX device IDs. */ #define DC_DEVICEID_AX88140A 0x1400 /* * The ASIX AX88140 and ASIX AX88141 have the same vendor and * device IDs but different revision values. */ #define DC_REVISION_88140 0x00 #define DC_REVISION_88141 0x10 /* * Accton vendor ID. */ #define DC_VENDORID_ACCTON 0x1113 /* * Accton device IDs. */ #define DC_DEVICEID_EN1217 0x1217 #define DC_DEVICEID_EN2242 0x1216 /* * Xircom vendor ID */ #define DC_VENDORID_XIRCOM 0x115d /* * Xircom device IDs. */ #define DC_DEVICEID_X3201 0x0003 /* * Conexant vendor ID. */ #define DC_VENDORID_CONEXANT 0x14f1 /* * Conexant device IDs. */ #define DC_DEVICEID_RS7112 0x1803 /* * PCI low memory base and low I/O base register, and * other PCI registers. */ #define DC_PCI_CFID 0x00 /* Id */ #define DC_PCI_CFCS 0x04 /* Command and status */ #define DC_PCI_CFRV 0x08 /* Revision */ #define DC_PCI_CFLT 0x0C /* Latency timer */ #define DC_PCI_CFBIO 0x10 /* Base I/O address */ #define DC_PCI_CFBMA 0x14 /* Base memory address */ #define DC_PCI_CCIS 0x28 /* Card info struct */ #define DC_PCI_CSID 0x2C /* Subsystem ID */ #define DC_PCI_CBER 0x30 /* Expansion ROM base address */ #define DC_PCI_CCAP 0x34 /* Caps pointer - PD/TD chip only */ #define DC_PCI_CFIT 0x3C /* Interrupt */ #define DC_PCI_CFDD 0x40 /* Device and driver area */ #define DC_PCI_CWUA0 0x44 /* Wake-Up LAN addr 0 */ #define DC_PCI_CWUA1 0x48 /* Wake-Up LAN addr 1 */ #define DC_PCI_SOP0 0x4C /* SecureON passwd 0 */ #define DC_PCI_SOP1 0x50 /* SecureON passwd 1 */ #define DC_PCI_CWUC 0x54 /* Configuration Wake-Up cmd */ #define DC_PCI_CCID 0xDC /* Capability ID - PD/TD only */ #define DC_PCI_CPMC 0xE0 /* Pwrmgmt ctl & sts - PD/TD only */ /* PCI ID register */ #define DC_CFID_VENDOR 0x0000FFFF #define DC_CFID_DEVICE 0xFFFF0000 /* PCI command/status register */ #define DC_CFCS_IOSPACE 0x00000001 /* I/O space enable */ #define DC_CFCS_MEMSPACE 0x00000002 /* memory space enable */ #define DC_CFCS_BUSMASTER 0x00000004 /* bus master enable */ #define DC_CFCS_MWI_ENB 0x00000010 /* mem write and inval enable */ #define DC_CFCS_PARITYERR_ENB 0x00000040 /* parity error enable */ #define DC_CFCS_SYSERR_ENB 0x00000100 /* system error enable */ #define DC_CFCS_NEWCAPS 0x00100000 /* new capabilities */ #define DC_CFCS_FAST_B2B 0x00800000 /* fast back-to-back capable */ #define DC_CFCS_DATAPARITY 0x01000000 /* Parity error report */ #define DC_CFCS_DEVSELTIM 0x06000000 /* devsel timing */ #define DC_CFCS_TGTABRT 0x10000000 /* received target abort */ #define DC_CFCS_MASTERABRT 0x20000000 /* received master abort */ #define DC_CFCS_SYSERR 0x40000000 /* asserted system error */ #define DC_CFCS_PARITYERR 0x80000000 /* asserted parity error */ /* PCI revision register */ #define DC_CFRV_STEPPING 0x0000000F #define DC_CFRV_REVISION 0x000000F0 #define DC_CFRV_SUBCLASS 0x00FF0000 #define DC_CFRV_BASECLASS 0xFF000000 #define DC_21143_PB_REV 0x00000030 #define DC_21143_TB_REV 0x00000030 #define DC_21143_PC_REV 0x00000030 #define DC_21143_TC_REV 0x00000030 #define DC_21143_PD_REV 0x00000041 #define DC_21143_TD_REV 0x00000041 /* PCI latency timer register */ #define DC_CFLT_CACHELINESIZE 0x000000FF #define DC_CFLT_LATENCYTIMER 0x0000FF00 /* PCI subsystem ID register */ #define DC_CSID_VENDOR 0x0000FFFF #define DC_CSID_DEVICE 0xFFFF0000 /* PCI cababilities pointer */ #define DC_CCAP_OFFSET 0x000000FF /* PCI interrupt config register */ #define DC_CFIT_INTLINE 0x000000FF #define DC_CFIT_INTPIN 0x0000FF00 #define DC_CFIT_MIN_GNT 0x00FF0000 #define DC_CFIT_MAX_LAT 0xFF000000 /* PCI capability register */ #define DC_CCID_CAPID 0x000000FF #define DC_CCID_NEXTPTR 0x0000FF00 #define DC_CCID_PM_VERS 0x00070000 #define DC_CCID_PME_CLK 0x00080000 #define DC_CCID_DVSPEC_INT 0x00200000 #define DC_CCID_STATE_D1 0x02000000 #define DC_CCID_STATE_D2 0x04000000 #define DC_CCID_PME_D0 0x08000000 #define DC_CCID_PME_D1 0x10000000 #define DC_CCID_PME_D2 0x20000000 #define DC_CCID_PME_D3HOT 0x40000000 #define DC_CCID_PME_D3COLD 0x80000000 /* PCI power management control/status register */ #define DC_CPMC_STATE 0x00000003 #define DC_CPMC_PME_ENB 0x00000100 #define DC_CPMC_PME_STS 0x00008000 /* Device specific region */ /* Configuration and driver area */ #define DC_CFDD_DRVUSE 0x0000FFFF #define DC_CFDD_SNOOZE_MODE 0x40000000 #define DC_CFDD_SLEEP_MODE 0x80000000 /* Configuration wake-up command register */ #define DC_CWUC_MUST_BE_ZERO 0x00000001 #define DC_CWUC_SECUREON_ENB 0x00000002 #define DC_CWUC_FORCE_WUL 0x00000004 #define DC_CWUC_BNC_ABILITY 0x00000008 #define DC_CWUC_AUI_ABILITY 0x00000010 #define DC_CWUC_TP10_ABILITY 0x00000020 #define DC_CWUC_MII_ABILITY 0x00000040 #define DC_CWUC_SYM_ABILITY 0x00000080 #define DC_CWUC_LOCK 0x00000100 /* * SROM nonsense. */ #define DC_IB_CTLRCNT 0x13 #define DC_IB_LEAF0_CNUM 0x1A #define DC_IB_LEAF0_OFFSET 0x1B struct dc_info_leaf { u_int16_t dc_conntype; u_int8_t dc_blkcnt; u_int8_t dc_rsvd; u_int16_t dc_infoblk; }; #define DC_CTYPE_10BT 0x0000 #define DC_CTYPE_10BT_NWAY 0x0100 #define DC_CTYPE_10BT_FDX 0x0204 #define DC_CTYPE_10B2 0x0001 #define DC_CTYPE_10B5 0x0002 #define DC_CTYPE_100BT 0x0003 #define DC_CTYPE_100BT_FDX 0x0205 #define DC_CTYPE_100T4 0x0006 #define DC_CTYPE_100FX 0x0007 #define DC_CTYPE_100FX_FDX 0x0208 #define DC_CTYPE_MII_10BT 0x0009 #define DC_CTYPE_MII_10BT_FDX 0x020A #define DC_CTYPE_MII_100BT 0x000D #define DC_CTYPE_MII_100BT_FDX 0x020E #define DC_CTYPE_MII_100T4 0x000F #define DC_CTYPE_MII_100FX 0x0010 #define DC_CTYPE_MII_100FX_FDX 0x0211 #define DC_CTYPE_DYN_PUP_AUTOSENSE 0x0800 #define DC_CTYPE_PUP_AUTOSENSE 0x8800 #define DC_CTYPE_NOMEDIA 0xFFFF #define DC_EBLOCK_SIA 0x0002 #define DC_EBLOCK_MII 0x0003 #define DC_EBLOCK_SYM 0x0004 #define DC_EBLOCK_RESET 0x0005 #define DC_EBLOCK_PHY_SHUTDOWN 0x0006 struct dc_leaf_hdr { u_int16_t dc_mtype; u_int8_t dc_mcnt; u_int8_t dc_rsvd; }; struct dc_eblock_hdr { u_int8_t dc_len; u_int8_t dc_type; }; struct dc_eblock_sia { struct dc_eblock_hdr dc_sia_hdr; u_int8_t dc_sia_code; union { struct dc_sia_ext { u_int8_t dc_sia_mediaspec[6]; /* CSR13, CSR14, CSR15 */ u_int8_t dc_sia_gpio_ctl[2]; u_int8_t dc_sia_gpio_dat[2]; } dc_sia_ext; struct dc_sia_noext { u_int8_t dc_sia_gpio_ctl[2]; u_int8_t dc_sia_gpio_dat[2]; } dc_sia_noext; } dc_un; }; #define DC_SIA_CODE_10BT 0x00 #define DC_SIA_CODE_10B2 0x01 #define DC_SIA_CODE_10B5 0x02 #define DC_SIA_CODE_10BT_FDX 0x04 #define DC_SIA_CODE_EXT 0x40 /* * Note that the first word in the gpr and reset * sequences is always a control word. */ struct dc_eblock_mii { struct dc_eblock_hdr dc_mii_hdr; u_int8_t dc_mii_phynum; u_int8_t dc_gpr_len; /* u_int16_t dc_gpr_dat[n]; */ /* u_int8_t dc_reset_len; */ /* u_int16_t dc_reset_dat[n]; */ /* There are other fields after these, but we don't * care about them since they can be determined by looking * at the PHY. */ }; struct dc_eblock_sym { struct dc_eblock_hdr dc_sym_hdr; u_int8_t dc_sym_code; u_int8_t dc_sym_gpio_ctl[2]; u_int8_t dc_sym_gpio_dat[2]; u_int8_t dc_sym_cmd[2]; }; #define DC_SYM_CODE_100BT 0x03 #define DC_SYM_CODE_100BT_FDX 0x05 #define DC_SYM_CODE_100T4 0x06 #define DC_SYM_CODE_100FX 0x07 #define DC_SYM_CODE_100FX_FDX 0x08 struct dc_eblock_reset { struct dc_eblock_hdr dc_reset_hdr; u_int8_t dc_reset_len; /* u_int16_t dc_reset_dat[n]; */ };