Speed this up a bit, do multiple transmit buffers, etc.
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mycroft
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@ -31,21 +31,19 @@
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* SUCH DAMAGE.
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*
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* from: @(#)if_lereg.h 7.1 (Berkeley) 5/8/90
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* $Id: if_lereg.h,v 1.5 1994/02/06 00:46:03 mycroft Exp $
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* $Id: if_lereg.h,v 1.6 1994/07/06 01:36:25 mycroft Exp $
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*/
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#define LEID 21
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#define LEMTU 1518
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#define LEMINSIZE 60 /* should be 64 if mode DTCR is set */
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#define LERBUF 8
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#define LERBUFLOG2 3
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#define LE_RLEN (LERBUFLOG2 << 13)
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#define LETBUF 1
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#define LETBUFLOG2 0
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#define LE_TLEN (LETBUFLOG2 << 13)
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#define NTBUF 2
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#define TLEN 1
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#define NRBUF 8
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#define RLEN 3
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#define BUFSIZE 1518
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#define vu_char volatile u_char
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#define vu_short volatile u_short
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/*
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* LANCE registers.
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@ -57,43 +55,6 @@ struct lereg0 {
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vu_char ler0_status; /* interrupt enable/status */
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};
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struct lereg1 {
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u_short ler1_rdp; /* data port */
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u_short ler1_rap; /* register select port */
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};
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/*
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* Overlayed on 16K dual-port RAM.
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* Current size is 15,284 bytes with 8 x 1518 receive buffers and
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* 2 x 1518 transmit buffers.
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*/
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struct lereg2 {
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/* init block */
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u_short ler2_mode; /* +0x0000 */
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u_char ler2_padr[6]; /* +0x0002 */
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u_long ler2_ladrf[2]; /* +0x0008 */
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u_short ler2_rdra; /* +0x0010 */
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u_short ler2_rlen; /* +0x0012 */
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u_short ler2_tdra; /* +0x0014 */
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u_short ler2_tlen; /* +0x0016 */
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/* receive message descriptors */
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struct lermd { /* +0x0018 */
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u_short rmd0;
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u_short rmd1;
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short rmd2;
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u_short rmd3;
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} ler2_rmd[LERBUF];
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/* transmit message descriptors */
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struct letmd { /* +0x0058 */
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u_short tmd0;
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u_short tmd1;
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short tmd2;
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u_short tmd3;
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} ler2_tmd[LETBUF];
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char ler2_rbuf[LERBUF][LEMTU]; /* +0x0068 */
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char ler2_tbuf[LETBUF][LEMTU]; /* +0x2FD8 */
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};
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/*
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* Control and status bits -- lereg0
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*/
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@ -104,14 +65,14 @@ struct lereg2 {
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#define LE_JAB 0x02 /* loss of tx clock (???) */
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#define LE_IPL(x) ((((x) >> 4) & 0x3) + 3)
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struct lereg1 {
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vu_short ler1_rdp; /* data port */
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vu_short ler1_rap; /* register select port */
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};
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/*
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* Control and status bits -- lereg1
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*/
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#define LE_CSR0 0
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#define LE_CSR1 1
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#define LE_CSR2 2
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#define LE_CSR3 3
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#define LE_SERR 0x8000
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#define LE_BABL 0x4000
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#define LE_CERR 0x2000
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@ -129,26 +90,72 @@ struct lereg2 {
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#define LE_STRT 0x0002
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#define LE_INIT 0x0001
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#define LE_BSWP 0x4
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#define LE_MODE 0x0
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#define LE_BSWP 0x0004
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#define LE_ACON 0x0002
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#define LE_BCON 0x0001
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/*
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* Control and status bits -- lereg2
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* Overlayed on 16K dual-port RAM.
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* Current size is 15,284 bytes with 8 x 1518 receive buffers and
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* 2 x 1518 transmit buffers.
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*/
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#define LE_OWN 0x8000
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#define LE_ERR 0x4000
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#define LE_STP 0x0200
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#define LE_ENP 0x0100
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#define LE_FRAM 0x2000
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#define LE_OFLO 0x1000
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#define LE_CRC 0x0800
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#define LE_RBUFF 0x0400
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#define LE_MORE 0x1000
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#define LE_ONE 0x0800
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#define LE_DEF 0x0400
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#define LE_TBUFF 0x8000
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#define LE_UFLO 0x4000
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#define LE_LCOL 0x1000
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#define LE_LCAR 0x0800
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#define LE_RTRY 0x0400
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/*
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* LANCE initialization block
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*/
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struct init_block {
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u_short mode; /* mode register */
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u_char padr[6]; /* ethernet address */
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u_long ladrf[2]; /* logical address filter (multicast) */
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u_short rdra; /* low order pointer to receive ring */
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u_short rlen; /* high order pointer and no. rings */
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u_short tdra; /* low order pointer to transmit ring */
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u_short tlen; /* high order pointer and no rings */
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};
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/*
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* Mode bits -- init_block
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*/
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#define LE_PROM 0x8000 /* promiscuous */
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#define LE_INTL 0x0040 /* internal loopback */
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#define LE_DRTY 0x0020 /* disable retry */
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#define LE_COLL 0x0010 /* force collision */
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#define LE_DTCR 0x0008 /* disable transmit crc */
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#define LE_LOOP 0x0004 /* loopback */
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#define LE_DTX 0x0002 /* disable transmitter */
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#define LE_DRX 0x0001 /* disable receiver */
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#define LE_NORMAL 0x0000
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/*
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* Message descriptor
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*/
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struct mds {
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u_short addr;
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u_short flags;
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u_short bcnt;
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u_short mcnt;
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};
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/* Message descriptor flags */
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#define LE_OWN 0x8000 /* owner bit, 0=host, 1=LANCE */
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#define LE_ERR 0x4000 /* error */
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#define LE_STP 0x0200 /* start of packet */
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#define LE_ENP 0x0100 /* end of packet */
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/* Receive ring status flags */
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#define LE_FRAM 0x2000 /* framing error error */
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#define LE_OFLO 0x1000 /* silo overflow */
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#define LE_CRC 0x0800 /* CRC error */
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#define LE_RBUFF 0x0400 /* buffer error */
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/* Transmit ring status flags */
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#define LE_MORE 0x1000 /* more than 1 retry */
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#define LE_ONE 0x0800 /* one retry */
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#define LE_DEF 0x0400 /* deferred transmit */
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/* Transmit errors */
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#define LE_TBUFF 0x8000 /* buffer error */
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#define LE_UFLO 0x4000 /* silo underflow */
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#define LE_LCOL 0x1000 /* late collision */
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#define LE_LCAR 0x0800 /* loss of carrier */
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#define LE_RTRY 0x0400 /* tried 16 times */
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