* Copyright (c) 1982 Regents of the University of California.
* All rights reserved. The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
* @(#)if_exreg.h 6.2 (Berkeley) %G%
char xd_porta
; /* write on porta resets EXOS */
char xd_portb
; /* write on portb interrupts EXOS */
/* read on portb returns status bits */
/* EXOS I/O PORT A write definitions */
#define EX_RESET 0 /* value doesn't really matter... */
/* EXOS I/O PORT B write definitions */
/* EXOS I/O PORT B read definitions */
#define EX_TESTOK 1 /* set when self-diagnostics passed */
#define EX_UNREADY (1<<3) /* set until EXOS ready to read from B */
/* message buffer status field definitions */
#define MH_OWNER 1 /* mask for status bit for owner */
#define MH_HOST 0 /* if 0, the host owns the buffer */
#define MH_EXOS 1 /* if 1, the EXOS owns the buffer */
/* EXOS Link Level request codes */
#define LLTRANSMIT 0xC /* send a packet */
#define LLRTRANSMIT 0xE /* send a packet, and self-receive */
#define LLRECEIVE 0xD /* receive a packet */
#define LLNET_MODE 0x8 /* read/write mode control objects */
#define LLNET_ADDRS 0x9 /* read/write receive address slots */
#define LLNET_RECV 0xA /* read/alter receive slot enable bit */
#define LLNET_STSTCS 0xB /* read/reset network statistics objects */
/* Link Level return codes common to all requests */
#define LL_OK 0 /* successful completion */
#define LLX_MODE 0xA1 /* EXOS not in link level mode (impossible) */
/* LLTRANSMIT unique return codes */
#define LLXM_1RTRY 0x1 /* successful xmission, 1 retry */
#define LLXM_RTRYS 0x2 /* successful xmission, more than 1 retry */
#define LLXM_NSQE 0x8 /* successful xmission, no SQE TEST signal */
#define LLXM_CLSN 0x10 /* xmission failed, excess retries */
#define LLXM_NCS 0x20 /* xmission failed, no carrier sense */
#define LLXM_LNGTH 0x40 /* xmission failed, bad packet length */
#define XMIT_BITS "\7\7LENGTH\6CARRIER\5XCLSNS\4SQETST"
#define LLXM_ERROR (LLXM_NSQE|LLXM_CLSN|LLXM_NCS|LLXM_LNGTH)
/* LLRECEIVE unique return codes */
#define LLRC_TRUNC 0x4 /* pkt received, but truncated to fit buffer */
#define LLRC_ALIGN 0x10 /* pkt received, but with alignment error */
#define LLRC_CRC 0x20 /* pkt received, but with CRC error */
#define LLRC_BUFLEN 0x40 /* no pkt received, buffer less than 64 bytes */
/* this should never happen here */
#define RECV_BITS "\7\7BUFLEN\6CRC\5ALIGN\3TRUNC"
/* LLNET_ADDRS unique return codes */
#define LLNA_BADSLOT 0xD1 /* slot doesn't exist or can't be accessed */
#define LLNA_BADADDR 0xD3 /* invalid address for designated slot */
/* LLNET_RECV unique return codes */
#define LLNR_BADSLOT 0xD1 /* slot doesn't exist or can't be accessed */
#define LLNR_BADADDR 0xD2 /* designated slot was empty */
/* address slot object indices */
#define NULLSLOT 0 /* the null slot */
#define MINMCSLOT 1 /* minimum multicast slot index */
#define MAXMCSLOT 8 /* default maximum multicast slot index */
#define PHYSSLOT 253 /* physical slot index */
#define UNVRSSLOT 254 /* universal slot index */
#define BROADSLOT 255 /* broadcast slot index */
/* request mask bit definitions */
#define WRITE_OBJ 1 /* write the object */
#define READ_OBJ 2 /* read the object */
#define ENABLE_RCV 4 /* enable reception on designated slot */
/* NET_MODE options mask bit definitions */
#define OPT_ALIGN 0x10 /* receive packets with alignment errors */
#define OPT_CRC 0x20 /* receive packets with CRC errors */
#define OPT_DSABLE 0x80 /* disconnect controller hardware */
/* NET_MODE mode field value definitions */
#define MODE_OFF 0 /* stop transmission and reception */
#define MODE_PERF 1 /* perfect multicast address filtering */
#define MODE_HW 2 /* hardware-only multicast address filtering */
#define MODE_PROM 3 /* promiscuous reception */
#define NFRAGMENTS 1 /* number fragments that the EXOS will scatter/gather */
#define EXMAXRBUF 1520 /* per EXOS 101 manual 5.3.7 (maybe 1518 would do) */
* N.B. Structures below are carefully constructed so that
* they correspond to the message formats that NX firmware
* defines. None of them should contain any compiler-instigated
* padding. Be especially careful about VAX C longword alignment!
u_long sa_fsent
; /* frames sent without errors */ u_long sa_xsclsn
; /* frames aborted excess collisions */ u_long sa_nsqe
; /* frames subject to heartbeat failure */ u_long sa_undef
; /* undefined (TDR on EXOS 101) */ u_long sa_frcvd
; /* frames received no errors */ u_long sa_align
; /* frames received alignment error */ u_long sa_crc
; /* frames received crc error */ u_long sa_flost
; /* frames lost */struct buf_blk
{ /* packet/buffer block descriptor */
u_short bb_len
; /* length of block, in bytes */ u_short bb_addr
[2]; /* address of block */ * Array above is really a single u_long field.
* We kludge its definition to defeat word-alignment.
* Access would look like:
* longaddr = *(u_long *)bp->.mb_er.er_blks[0].bb_addr;
struct net_mode
{ /* read/write mode control objects */
/*12*/ u_char nm_rqst
; /* request code */
/*13*/ u_char nm_rply
; /* reply code */
/*14*/ u_char nm_mask
; /* bit-wise switches for read, write */
/*15*/ u_char nm_optn
; /* acceptable packet reception errors */
/*16*/ u_char nm_mode
; /* EXOS filtering mode */
struct net_addrs
{ /* read/write receive address slots */
/*12*/ u_char na_rqst
; /* request code */
/*13*/ u_char na_rply
; /* reply code */
/*14*/ u_char na_mask
; /* bit-wise switches for read, write */
/*15*/ u_char na_slot
; /* index of address slot */
/*16*/ u_char na_addrs
[6]; /* address read and/or written */
struct net_recv
{ /* read/alter receive slot enable bit */
/*12*/ u_char nr_rqst
; /* request code */
/*13*/ u_char nr_rply
; /* reply code */
/*14*/ u_char nr_mask
; /* bit-wise switches for read, write */
/*15*/ u_char nr_slot
; /* index of address slot */
struct net_ststcs
{ /* read/reset network statistics objects */
/*12*/ u_char ns_rqst
; /* request code */
/*13*/ u_char ns_rply
; /* reply code */
/*14*/ u_char ns_mask
; /* bit-wise switches for read, write */
/*15*/ u_char ns_rsrv
; /* reserved for EXOS */
/*16*/ u_short ns_nobj
; /* number of objects to work on */
/*18*/ u_short ns_xobj
; /* index of first object to work on */
/*20*/ u_long ns_bufp
; /* pointer to statistics buffer */
struct enet_xmit
{ /* send a packet on the Ethernet */
/*12*/ u_char et_rqst
; /* request code */
/*13*/ u_char et_rply
; /* reply code */
/*14*/ u_char et_slot
; /* address slot matching dest address */
/*15*/ u_char et_nblock
; /* number of blocks composing packet */
/*16*/ struct buf_blk et_blks
[NFRAGMENTS
]; /* array of block descriptors */
struct enet_recv
{ /* receive a packet on the Ethernet */
/*12*/ u_char er_rqst
; /* request code */
/*13*/ u_char er_rply
; /* reply code */
/*14*/ u_char er_slot
; /* address slot matching dest address */
/*15*/ u_char er_nblock
; /* number of blocks composing buffer */
/*16*/ struct buf_blk er_blks
[NFRAGMENTS
]; /* array of block descriptors */
/* we send requests and receive replys with the EXOS using this structure */
/*00*/ u_short mb_link
; /* address of next message buffer */
/*02*/ u_char mb_rsrv
; /* reserved for use by EXOS */
/*03*/ u_char mb_status
; /* used bit-wise for message protocol */
/*04*/ u_short mb_length
; /* length, in bytes, of the rest */
/*06*/ short mb_1rsrv
; /* reserved for used by EXOS */
/*08*/ long mb_mid
; /* available to user */
struct net_mode mb_net_mode
;
struct net_addrs mb_net_addrs
;
struct net_recv mb_net_recv
;
struct net_ststcs mb_net_ststcs
;
struct enet_xmit mb_enet_xmit
;
struct enet_recv mb_enet_recv
;
/* following field is used only by host, not read by board */
struct ex_msg
*mb_next
; /* host's pointer to next message */
#define mb_nm mb_all.mb_net_mode
#define mb_na mb_all.mb_net_addrs
#define mb_nr mb_all.mb_net_recv
#define mb_ns mb_all.mb_net_ststcs
#define mb_et mb_all.mb_enet_xmit
#define mb_er mb_all.mb_enet_recv
#define mb_rqst mb_nm.nm_rqst
#define mb_rply mb_nm.nm_rply
#define MBDATALEN (sizeof(union mb_all)+6)
/*00*/ u_short cm_1rsrv
; /* reserved, must be 1 */
/*02*/ char cm_vc
[4]; /* returns ASCII version code */
/*06*/ u_char cm_cc
; /* returns config completion code */
/*07*/ u_char cm_opmode
; /* specifies operation mode */
/*08*/ u_short cm_dfo
; /* specifies host data format option */
/*10*/ u_char cm_dcn1
; /* reserved, must be 1 */
/*11*/ u_char cm_2rsrv
[2]; /* reserved, must be 0 */
/*13*/ u_char cm_ham
; /* specifies host address mode */
/*14*/ u_char cm_3rsrv
; /* reserved, must be 0 */
/*15*/ u_char cm_mapsiz
; /* reserved, must be 0 */
/*16*/ u_char cm_byteptrn
[4]; /* host data format option test pattern */
/*20*/ u_short cm_wordptrn
[2];
/*24*/ u_long cm_lwordptrn
;
/*28*/ u_char cm_rsrvd
[20];
/*48*/ u_long cm_mba
; /* use 0xFFFFFFFF in link level mode */
/*52*/ u_char cm_nproc
; /* use 0xFF in link level mode */
/*53*/ u_char cm_nmbox
; /* use 0xFF in link level mode */
/*54*/ u_char cm_nmcast
; /* use 0xFF in link level mode */
/*55*/ u_char cm_nhost
; /* use 1 in link level mode */
/* the next five parameters define the request message queue */
/*56*/ u_long cm_h2xba
; /* base address of message queue */
/*60*/ u_short cm_h2xhdr
; /* address offset of msg Q header */
/*62*/ u_char cm_h2xtyp
; /* interrupt type */
/*63*/ u_char cm_h2xval
; /* interrupt value (not used) */
/*64*/ u_short cm_h2xaddr
; /* interrupt vector */
/*66*/ u_short cm_h2xpad
; /* pad out unused portion of vector */
/* the next five parameters define the reply message queue */
/*68*/ u_long cm_x2hba
; /* base address of message queue */
/*72*/ u_short cm_x2hhdr
; /* address offset of msg Q header */
/*74*/ u_char cm_x2htyp
; /* interrupt type */
/*75*/ u_char cm_x2hval
; /* interrupt value (not used) */
/*76*/ u_short cm_x2haddr
; /* interrupt vector */
/*78*/ u_short cm_x2hpad
; /* pad out unused portion of vector */
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