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C/C++ Source or Header | 1990-12-19 | 17.3 KB | 550 lines

/* @(#)promether.h 1.1 86/09/27 SMI */ /* * Copyright (c) 1986 by Sun Microsystems, Inc. */ #define ETHERMEM 0x080000 /* must be top 16 MB of memory */ #define BCLEAR(x) bzero((x), sizeof(*(x))) /* * Register definitions for the Sun-2 On-board version of the * Intel EDLC based Ethernet interface */ struct ereg { u_char obie_noreset : 1; /* R/W: Ethernet chips reset */ u_char obie_noloop : 1; /* R/W: loopback */ u_char obie_ca : 1; /* R/W: channel attention */ u_char obie_ie : 1; /* R/W: interrupt enable */ u_char : 1; /* R/O: unused */ u_char obie_level2 : 1; /* R/O: 0=Level 1 xcvr, 1=Level 2 */ u_char obie_buserr : 1; /* R/O: Ether DMA got bus error */ u_char obie_intr : 1; /* R/O: interrupt request */ }; /* * Copyright (c) 1984 by Sun Microsystems, Inc. */ /* * blame kevin sheehan Thu Dec 29 17:46:12 PST 1983 * Then blame John Gilmore for leaving it this way! * then blame kevin for the prom version? * */ #define ETHERBUFSIZE 0x2000 #define MEMPAGESIZE 0x2000 #define NTXBUF 15 #define NRXBUF NTXBUF #define DUMPSCB 1 /* for etherdump */ #define DUMPCB 2 #define DUMPTDR 4 #define DUMPRFD 8 #define DUMPRBD 0x10 #define DUMPSTATS 0x20 #define DUMPTBD 0x40 #define DUMPRXBUF 0x80 #define DUMPALL -1 /* * Data types peculiar to the Intel Ethernet chip * These types of data MUST be manipulated by calls to to_iexxx * and from_iexxx, since their representation changes from the * (non-byte-swapped) Multibus board to the (byte-swapped) Model 50 board. */ typedef unsigned short mieoff_t; /* offsets from iscp_base */ typedef unsigned short mieint_t; /* 16 bit integers */ typedef unsigned long mieaddr_t; /* 24-bit addresses */ mieoff_t to_mieoff(); mieaddr_t to_mieaddr(); caddr_t from_mieoff(); caddr_t from_mieaddr(); mieint_t to_ieint(); #define from_ieint (unsigned short) to_ieint /* * Now for the control structures in shared memory */ /* * System Configuration Pointer * This is at 0xFFFFF6 in the EDLC chip's address space. */ struct escp { u_short scp_sysbus; /* one byte or the other determines bus width */ u_long dummy1; mieaddr_t iscp_addr; /* bizzare address of iscp */ }; /* * Intermediate System Configuration Pointer * Specifies base of all other control blocks and the offset of the SCB. */ struct eiscp { #ifdef NOSWAB u_char dummy2; u_char iscp_busy; /* 1=> still initializing */ #else NOSWAB u_char iscp_busy; /* 1=> still initializing */ u_char dummy2; #endif NOSWAB mieoff_t iscb_offset; /* offset of scb */ mieaddr_t iscb_base; /* base for all offsets */ }; /* * System Control Block -- the focus of communication with the EDLC * Head of command blocks, and holder of all sacred. */ struct escb { #ifdef NOSWAB unsigned scb_cx:1; /* cmd with I-bit set has been done */ unsigned scb_fr:1; /* frame received */ unsigned scb_cnr:1; /* command unit became not ready */ unsigned scb_rnr:1; /* receive unit became not ready */ unsigned scb_zero0:1; /* must be zero */ unsigned scb_cus:3; /* command unit status */ unsigned scb_zero1:1; /* must be zero */ unsigned scb_rus:3; /* receive unit status */ unsigned scb_zero2:4; /* must be zero */ unsigned scb_cxack:1; /* ack cx above */ unsigned scb_frack:1; /* ack frame received */ unsigned scb_cnrack:1; /* ack command unit became not ready */ unsigned scb_rnrack:1; /* ack receive unit became not ready */ unsigned scb_zero4:1; /* must be zero */ unsigned scb_cuc:3; /* command unit command */ unsigned scb_reset:1; /* reset chip */ unsigned scb_ruc:3; /* receive unit command */ unsigned scb_zero5:4; /* must be zero */ #else NOSWAB unsigned scb_zero1:1; /* must be zero */ unsigned scb_rus:3; /* receive unit status */ unsigned scb_zero2:4; /* must be zero */ unsigned scb_cx:1; /* cmd with I-bit set has been done */ unsigned scb_fr:1; /* frame received */ unsigned scb_cnr:1; /* command unit became not ready */ unsigned scb_rnr:1; /* receive unit became not ready */ unsigned scb_zero0:1; /* must be zero */ unsigned scb_cus:3; /* command unit status */ unsigned scb_reset:1; /* reset chip */ unsigned scb_ruc:3; /* receive unit command */ unsigned scb_zero5:4; /* must be zero */ unsigned scb_cxack:1; /* ack cx above */ unsigned scb_frack:1; /* ack frame received */ unsigned scb_cnrack:1; /* ack command unit became not ready */ unsigned scb_rnrack:1; /* ack receive unit became not ready */ unsigned scb_zero4:1; /* must be zero */ unsigned scb_cuc:3; /* command unit command */ #endif NOSWAB mieoff_t scb_cbloff; /* command block list offset */ mieoff_t scb_rfaoff; /* received frame aread offset */ mieint_t scb_crcerrs; /* # crc errors */ mieint_t scb_alnerrs; /* # mis-aligned frames w/bad CRC */ mieint_t scb_rscerrs; /* # frames tossed due to resources */ mieint_t scb_ovrnerrs; /* # frames tossed due to bus loss */ }; /* * Generic command block */ struct ecb { /* standard command block header */ #ifdef NOSWAB unsigned cb_c:1; /* command done (set 0 by us) */ unsigned cb_b:1; /* busy */ unsigned cb_ok:1; /* command went ok */ unsigned cb_abort:1; /* command was aborted */ unsigned cb_stat_hi:4; /* other status */ unsigned cb_stat_lo:8; /* Part of status */ unsigned cb_el:1; /* command is end of list */ unsigned cb_s:1; /* suspend CU when done this command */ unsigned cb_i:1; /* interrupt when done (sets scb_cx) */ unsigned :10; unsigned cb_cmd:3; /* command to be done */ #else NOSWAB unsigned cb_stat_lo:8; /* Part of status */ unsigned cb_c:1; /* command done (set 0 by us) */ unsigned cb_b:1; /* busy */ unsigned cb_ok:1; /* command went ok */ unsigned cb_abort:1; /* command was aborted */ unsigned cb_stat_hi:4; /* other status */ unsigned :5; unsigned cb_cmd:3; /* command to be done */ unsigned cb_el:1; /* command is end of list */ unsigned cb_s:1; /* suspend CU when done this command */ unsigned cb_i:1; /* interrupt when done (sets scb_cx) */ unsigned :5; #endif NOSWAB mieoff_t cb_link; /* offset of next block */ }; /* * TDR command block extension */ struct tdr_ext { /* tdr status part of command block */ #ifdef NOSWAB unsigned tdr_linkok:1; /* was link ok ?? */ unsigned tdr_xcvrprob:1; /* was there a transceiver problem? */ unsigned tdr_open:1; /* was there an open on the net ?? */ unsigned tdr_short:1; /* was there a short on the net ?? */ unsigned tdr_dummy:1; /* NU */ unsigned tdr_time_hi:3; /* time to problem */ unsigned tdr_time_lo:8; /* time to problem */ #else NOSWAB unsigned tdr_time_lo:8; /* time to problem */ unsigned tdr_linkok:1; /* was link ok ?? */ unsigned tdr_xcvrprob:1; /* was there a transceiver problem? */ unsigned tdr_open:1; /* was there an open on the net ?? */ unsigned tdr_short:1; /* was there a short on the net ?? */ unsigned tdr_dummy:1; /* NU */ unsigned tdr_time_hi:3; /* time to problem */ #endif NOSWAB }; /* * Configure command extension. */ struct conf_ext { #ifdef NOSWAB unsigned :4; /* NU */ unsigned conf_fifolim:4; /* fifo limit */ unsigned :4; /* NU */ unsigned conf_count:4; /* length in bytes of config params */ unsigned conf_extloop:1; /* external loopback */ unsigned conf_intloop:1; /* internal loopback */ unsigned conf_preamlen:2; /* preamble length */ unsigned conf_acloc:1; /* 1 = address and type in buffers */ unsigned conf_addrlen:3; /* length of address */ unsigned conf_savebad:1; /* save bad frames */ unsigned conf_srdy:1; /* internal/external sync */ unsigned :6; u_char conf_framespace; /* interframe spacing period */ unsigned conf_backoff:1; /* backoff method */ unsigned conf_exppri:3; /* exponential priority */ unsigned :1; unsigned conf_linpri:3; /* linear priority */ unsigned conf_numretries:4; /* number of retries */ unsigned :1; unsigned conf_slottime_hi:3; /* slot time */ unsigned conf_slottime_lo:8; /* slot time */ unsigned conf_cdtsrc:1; /* collision detect source */ unsigned conf_cdtf:3; /* collision detect filter bits */ unsigned conf_crssrc:1; /* carrier sense source */ unsigned conf_crsf:3; /* carrier sense fileter bits */ unsigned conf_pad:1; /* do padding ?? */ unsigned conf_bitstuff:1; /* HDLC bitstuffing mode ?? */ unsigned conf_crctype:1; /* crc type */ unsigned conf_nocrc:1; /* crc generation inhibit */ unsigned conf_tonocrs:1; /* xmit on no CRS */ unsigned conf_manchester:1; /* nrz/manch encoding */ unsigned conf_nobroadcast:1; /* reject broadcast frames */ unsigned conf_promiscuous:1; /* mode accepts ALL frames */ unsigned :8; /* NU */ u_char conf_minframelen; /* minimum frame length */ #else NOSWAB unsigned :4; /* NU */ unsigned conf_count:4; /* bytes of config params */ unsigned :4; /* NU */ unsigned conf_fifolim:4; /* fifo limit */ unsigned conf_savebad:1; /* save bad frames */ unsigned conf_srdy:1; /* internal/external sync */ unsigned :6; /* NU */ unsigned conf_extloop:1; /* external loopback */ unsigned conf_intloop:1; /* internal loopback */ unsigned conf_preamlen:2; /* preamble length */ unsigned conf_acloc:1; /* 1 = address&type in bufs */ unsigned conf_addrlen:3; /* length of address */ unsigned conf_backoff:1; /* backoff method */ unsigned conf_exppri:3; /* exponential priority */ unsigned :1; /* NU */ unsigned conf_linpri:3; /* linear priority */ u_char conf_framespace; /* interframe spacing period */ unsigned conf_slottime_lo:8; /* slot time */ unsigned conf_numretries:4; /* number of retries */ unsigned :1; /* NU */ unsigned conf_slottime_hi:3; /* slot time */ unsigned conf_pad:1; /* do padding ?? */ unsigned conf_bitstuff:1; /* HDLC bitstuffing mode ?? */ unsigned conf_crctype:1; /* crc type */ unsigned conf_nocrc:1; /* crc generation inhibit */ unsigned conf_tonocrs:1; /* xmit on no CRS */ unsigned conf_manchester:1; /* nrz/manch encoding */ unsigned conf_nobroadcast:1; /* reject broadcast frames */ unsigned conf_promiscuous:1; /* mode accepts ALL frames */ unsigned conf_cdtsrc:1; /* collision detect source */ unsigned conf_cdtf:3; /* collision det. filter bits */ unsigned conf_crssrc:1; /* carrier sense source */ unsigned conf_crsf:3; /* carrier sense fileter bits */ u_char conf_minframelen; /* minimum frame length */ unsigned :8; /* NU */ #endif NOSWAB }; #define ADDRLEN 6 typedef char etheraddr[ADDRLEN]; /* could need swapping */ struct tx_ext { /* for cb extension block */ mieoff_t tx_bdptr; /* address of TBD */ etheraddr tx_addr; /* destination ethernet address */ u_short tx_type; /* user defined type field */ }; /* * Transmit control block, again??? */ struct etxcb { /* for linked use */ #ifdef NOSWAB unsigned tx_c:1; /* command done (set 0 by us) */ unsigned tx_b:1; /* busy */ unsigned tx_ok:1; /* command went ok */ unsigned tx_abort:1; /* command was aborted */ unsigned :1; /* not used */ unsigned tx_nocarrier:1; /* carrier dropped, transmission stopped */ unsigned tx_nocts:1; /* transmission stopped, no clear to send */ unsigned tx_underrun:1; /* dma underrun */ unsigned tx_deferred:1; /* transmission deferred */ unsigned tx_heartbeat:1; /* CDT sensed in interframe period */ unsigned tx_bumps:1; /* too many collisions (counter timed out) */ unsigned :1; /* not used */ unsigned tx_numbumps:4; /* number of collisions in this frame */ unsigned tx_el:1; /* command is end of list */ unsigned tx_s:1; /* suspend CU when done with this command */ unsigned tx_i:1; /* interrupt when done (sets scb_cx) */ unsigned tx_dummy:10; /* NU */ unsigned tx_cmd:3; /* command to be done will be CMD_TRANSMIT */ #else NOSWAB unsigned tx_deferred:1; /* transmission deferred */ unsigned tx_heartbeat:1; /* CDT sensed in interframe period */ unsigned tx_bumps:1; /* too many collisions (counter timed out) */ unsigned :1; /* not used */ unsigned tx_numbumps:4; /* number of collisions in this frame */ unsigned tx_c:1; /* command done (set 0 by us) */ unsigned tx_b:1; /* busy */ unsigned tx_ok:1; /* command went ok */ unsigned tx_abort:1; /* command was aborted */ unsigned :1; /* not used */ unsigned tx_nocarrier:1; /* carrier dropped, transmission stopped */ unsigned tx_nocts:1; /* transmission stopped, no clear to send */ unsigned tx_underrun:1; /* dma underrun */ unsigned :5; /* NU */ unsigned tx_cmd:3; /* command (== CMD_TRANSMIT) */ unsigned tx_el:1; /* command is end of list */ unsigned tx_s:1; /* suspend CU when done with this command */ unsigned tx_i:1; /* interrupt when done (sets scb_cx) */ unsigned :5; /* NU */ #endif NOSWAB mieoff_t tx_link; /* offset of next block */ mieoff_t tx_bdptr; /* buffer descriptor offset */ etheraddr tx_addr; /* destination ethernet address */ u_short tx_type; /* user defined type field */ }; /* * Transmit Buffer Descriptor */ struct etbd { #ifdef NOSWAB unsigned tbd_eof:1; /* end of this frame */ unsigned :1; /* NU */ unsigned tbd_count_hi:6; /* count of bytes in this buffer */ unsigned tbd_count_hi:8; /* count of bytes in this buffer */ #else NOSWAB unsigned tbd_count_lo:8; /* count of bytes in this buffer */ unsigned tbd_eof:1; /* end of this frame */ unsigned :1; /* NU */ unsigned tbd_count_hi:6; /* count of bytes in this buffer */ #endif NOSWAB mieoff_t tbd_link; /* offset of next tbd */ mieaddr_t tbd_addr; /* address of data to be sent */ }; /* * Receive Frame Descriptor */ struct erfd { #ifdef NOSWAB unsigned rfd_c:1; /* frame reception complete */ unsigned rfd_b:1; /* this frame busy */ unsigned rfd_ok:1; /* frame received with no errors */ unsigned :1; /* NU */ unsigned rfd_crc:1; /* crc error in aligned frame */ unsigned rfd_align:1; /* CRC error in misaligned frame */ unsigned rfd_buffer:1; /* ran out of buffer space */ unsigned rfd_overrun:1; /* DMA overrun */ unsigned rfd_short:1; /* frame too short */ unsigned rfd_noeof:1; /* no EOF (bitstuffing only) */ unsigned :6; /* NU */ unsigned rfd_el:1; /* last RFD on RDL */ unsigned rfd_s:1; /* suspend after receiving this frame */ unsigned :6; /* NU */ unsigned :8; /* NU */ #else NOSWAB unsigned rfd_short:1; /* frame too short */ unsigned rfd_noeof:1; /* no EOF (bitstuffing only) */ unsigned :6; unsigned rfd_c:1; /* frame reception complete */ unsigned rfd_b:1; /* this frame busy */ unsigned rfd_ok:1; /* frame received with no errors */ unsigned :1; unsigned rfd_crc:1; /* crc error in aligned frame */ unsigned rfd_align:1; /* CRC error in misaligned frame */ unsigned rfd_buffer:1; /* ran out of buffer space */ unsigned rfd_overrun:1; /* DMA overrun */ unsigned :8; unsigned rfd_el:1; /* last RFD on RDL */ unsigned rfd_s:1; /* suspend after receiving this frame */ unsigned :6; #endif NOSWAB mieoff_t rfd_link; /* offset of next RFD */ mieoff_t rfd_bdptr; /* offset of RBD */ etheraddr rfd_dest; /* destination address */ etheraddr rfd_source; /* source address */ u_short rfd_type; /* user defined type field */ }; /* * Receive Buffer Descriptor */ struct erbd { #ifdef NOSWAB unsigned rbd_eof:1; /* last buffer of this frame */ unsigned rbd_f:1; /* buffer has been used */ unsigned rbd_count_hi:6; /* count of meaningful bytes */ unsigned rbd_count_lo:8; /* count of meaningful bytes */ mieoff_t rbd_bdptr; /* offset of next rbd */ mieaddr_t rbd_addr; /* address of buffer */ unsigned rbd_el:1; /* buffer is last one in FBL */ unsigned :1; /* NU */ unsigned rbd_size_hi:6; /* size of buffer */ unsigned rbd_size_lo:8; /* size of buffer */ #else NOSWAB unsigned rbd_count_lo:8; /* count of meaningful bytes */ unsigned rbd_eof:1; /* last buffer of this frame */ unsigned rbd_f:1; /* buffer has been used */ unsigned rbd_count_hi:6; /* count of meaningful bytes */ mieoff_t rbd_bdptr; /* offset of next rbd */ mieaddr_t rbd_addr; /* address of buffer */ unsigned rbd_size_lo:8; /* size of buffer */ unsigned rbd_el:1; /* buffer is last one in FBL */ unsigned :1; /* NU */ unsigned rbd_size_hi:6; /* size of buffer */ #endif NOSWAB }; /* * some handy defines, like commands and status returned. */ #define CUS_IDLE 0 #define CUS_SUSPENDED 1 #define CUS_READY 2 #define RUS_IDLE 0 #define RUS_SUSPENDED 1 #define RUS_NORESOURCES 2 #define RUS_READY 4 #define CUC_NOP 0 #define CUC_START 1 #define CUC_RESUME 2 #define CUC_SUSPEND 3 #define CUC_ABORT 4 #define RUC_NOP 0 #define RUC_START 1 #define RUC_RESUME 2 #define RUC_SUSPEND 3 #define RUC_ABORT 4 #define CMD_NOP 0 #define CMD_IASETUP 1 #define CMD_CONFIGURE 2 #define CMD_MCSETUP 3 #define CMD_TRANSMIT 4 #define CMD_TDR 5 #define CMD_DUMP 6 #define CMD_DIAGNOSE 7 /* * this stuff is the declaration of our use of the ethernet * board. */ struct etherblock { u_char ethertype; /* =50 for Model 50 */ u_char verydumfill[3]; /* To long-align dummyfill */ char dummyfill[MEMPAGESIZE - sizeof(struct escp) - 4*sizeof(u_char)]; struct escp scp; /* system config pointer */ struct eiscp iscp; /* intermediate sys control */ struct escb scb; /* system control block */ struct cbl { /* command block list */ struct ecb cb; /* command block */ union cb_ext { /* command extensions */ struct tdr_ext tdr; /* time domain reflectometer */ etheraddr iaddr; /* individual address setup */ struct conf_ext conf; /* configuration (see &conf.h)*/ struct tx_ext tx; /* transmit */ } cb_ext; } cbl[NTXBUF+2]; struct etbd tbd[NTXBUF]; /* tx buffer descriptor */ struct erfd rfd[NRXBUF]; /* rx frame descriptor */ struct erbd rbd[NRXBUF+2]; /* rx buffer descriptor */ u_char txbuf[NTXBUF][ETHERBUFSIZE]; /* tx buffers */ u_char rxbuf[NRXBUF][ETHERBUFSIZE]; /* rx buffers */ u_char rxbogus[2][16]; /* for bogus b0-step actions */ };