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Diffstat (limited to 'sys/dev/en/midwayvar.h')
| -rw-r--r-- | sys/dev/en/midwayvar.h | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/sys/dev/en/midwayvar.h b/sys/dev/en/midwayvar.h new file mode 100644 index 0000000..c17db92 --- /dev/null +++ b/sys/dev/en/midwayvar.h @@ -0,0 +1,205 @@ +/* $NetBSD: midwayvar.h,v 1.10 1997/03/20 21:34:46 chuck Exp $ */ + +/* + * + * Copyright (c) 1996 Charles D. Cranor and Washington University. + * 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 Charles D. Cranor and + * Washington University. + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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. + */ + +/* + * m i d w a y v a r . h + * + * we define the en_softc here so that bus specific modules can allocate + * it as the first item in their softc. note that BSD-required + * "struct device" is in the mid_softc! + * + * author: Chuck Cranor <chuck@ccrc.wustl.edu> + */ + +/* + * params needed to determine softc size + */ + +#ifndef EN_NTX +#define EN_NTX 8 /* number of tx bufs to use */ +#endif +#ifndef EN_TXSZ +#define EN_TXSZ 32 /* trasmit buf size in KB */ +#endif +#ifndef EN_RXSZ +#define EN_RXSZ 32 /* recv buf size in KB */ +#endif +#define EN_MAXNRX ((2048-(EN_NTX*EN_TXSZ))/EN_RXSZ) + /* largest possible NRX (depends on RAM size) */ + + +#if defined(__NetBSD__) || defined(__OpenBSD__) || defined(__bsdi__) +#define EN_INTR_TYPE int +#define EN_INTR_RET(X) return(X) +#if defined(__NetBSD__) || defined(__OpenBSD__) +#define EN_IOCTL_CMDT u_long +#elif defined(__bsdi__) +#define EN_IOCTL_CMDT int +#endif + +#elif defined(__FreeBSD__) + +#define EN_INTR_TYPE void +#define EN_INTR_RET(X) return +#define EN_IOCTL_CMDT int + +struct device { + char dv_xname[IFNAMSIZ]; +}; + +#define DV_IFNET 1 + +struct cfdriver { + int zero; + char *name; + int one; + int cd_ndevs; + void *cd_devs[NEN]; +}; + +#endif + + +/* + * softc + */ + +struct en_softc { + /* bsd glue */ + struct device sc_dev; /* system device */ + struct ifnet enif; /* network ifnet handle */ + + /* bus glue */ + bus_space_tag_t en_memt; /* for EN_READ/EN_WRITE */ + bus_space_handle_t en_base; /* base of en card */ + bus_size_t en_obmemsz; /* size of en card (bytes) */ + void (*en_busreset) __P((void *)); + /* bus specific reset function */ + + /* serv list */ + u_int32_t hwslistp; /* hw pointer to service list (byte offset) */ + u_int16_t swslist[MID_SL_N]; /* software service list (see en_service()) */ + u_int16_t swsl_head, /* ends of swslist (index into swslist) */ + swsl_tail; + u_int32_t swsl_size; /* # of items in swsl */ + + + /* xmit dma */ + u_int32_t dtq[MID_DTQ_N]; /* sw copy of dma q (see ENIDQ macros) */ + u_int32_t dtq_free; /* # of dtq's free */ + u_int32_t dtq_us; /* software copy of our pointer (byte offset) */ + u_int32_t dtq_chip; /* chip's pointer (byte offset) */ + u_int32_t need_dtqs; /* true if we ran out of DTQs */ + + /* recv dma */ + u_int32_t drq[MID_DRQ_N]; /* sw copy of dma q (see ENIDQ macros) */ + u_int32_t drq_free; /* # of drq's free */ + u_int32_t drq_us; /* software copy of our pointer (byte offset) */ + u_int32_t drq_chip; /* chip's pointer (byte offset) */ + u_int32_t need_drqs; /* true if we ran out of DRQs */ + + /* xmit buf ctrl. (per channel) */ + struct { + u_int32_t mbsize; /* # mbuf bytes we are using (max=TXHIWAT) */ + u_int32_t bfree; /* # free bytes in buffer (not dma or xmit) */ + u_int32_t start, stop; /* ends of buffer area (byte offset) */ + u_int32_t cur; /* next free area (byte offset) */ + u_int32_t nref; /* # of VCs using this channel */ + struct ifqueue indma; /* mbufs being dma'd now */ + struct ifqueue q; /* mbufs waiting for dma now */ + } txslot[MID_NTX_CH]; + + /* xmit vc ctrl. (per vc) */ + u_int8_t txspeed[MID_N_VC]; /* speed of tx on a VC */ + u_int8_t txvc2slot[MID_N_VC]; /* map VC to slot */ + + /* recv vc ctrl. (per vc). maps VC number to recv slot */ + u_int16_t rxvc2slot[MID_N_VC]; + int en_nrx; /* # of active rx slots */ + + /* recv buf ctrl. (per recv slot) */ + struct { + void *rxhand; /* recv. handle if doing direct delivery */ + u_int32_t mode; /* saved copy of mode info */ + u_int32_t start, stop; /* ends of my buffer area */ + u_int32_t cur; /* where I am at */ + u_int16_t atm_vci; /* backpointer to VCI */ + u_int8_t atm_flags; /* copy of atm_flags from atm_ph */ + u_int8_t oth_flags; /* other flags */ + u_int32_t raw_threshold; /* for raw mode */ + struct ifqueue indma; /* mbufs being dma'd now */ + struct ifqueue q; /* mbufs waiting for dma now */ + } rxslot[EN_MAXNRX]; /* recv info */ + + /* stats */ + u_int32_t vtrash; /* sw copy of counter */ + u_int32_t otrash; /* sw copy of counter */ + u_int32_t ttrash; /* # of RBD's with T bit set */ + u_int32_t mfix; /* # of times we had to call mfix */ + u_int32_t mfixfail; /* # of times mfix failed */ + u_int32_t headbyte; /* # of times we used BYTE DMA at front */ + u_int32_t tailbyte; /* # of times we used BYTE DMA at end */ + u_int32_t tailflush; /* # of times we had to FLUSH out DMA bytes */ + u_int32_t txmbovr; /* # of times we dropped due to mbsize */ + u_int32_t dmaovr; /* tx dma overflow count */ + u_int32_t txoutspace; /* out of space in xmit buffer */ + u_int32_t txdtqout; /* out of DTQs */ + u_int32_t launch; /* total # of launches */ + u_int32_t lheader; /* # of launches without OB header */ + u_int32_t ltail; /* # of launches without OB tail */ + u_int32_t hwpull; /* # of pulls off hardware service list */ + u_int32_t swadd; /* # of pushes on sw service list */ + u_int32_t rxqnotus; /* # of times we pull from rx q, but fail */ + u_int32_t rxqus; /* # of good pulls from rx q */ + u_int32_t rxoutboth; /* # of times out of mbufs and DRQs */ + u_int32_t rxdrqout; /* # of times out of DRQs */ + u_int32_t rxmbufout; /* # of time out of mbufs */ + + /* random stuff */ + u_int32_t ipl; /* sbus interrupt lvl (1 on pci?) */ + u_int8_t bestburstcode; /* code of best burst we can use */ + u_int8_t bestburstlen; /* length of best burst (bytes) */ + u_int8_t bestburstshift; /* (x >> shift) == (x / bestburstlen) */ + u_int8_t bestburstmask; /* bits to check if not multiple of burst */ + u_int8_t alburst; /* align dma bursts? */ + u_int8_t is_adaptec; /* adaptec version of midway? */ +}; + +/* + * exported functions + */ + +void en_attach __P((struct en_softc *)); +EN_INTR_TYPE en_intr __P((void *)); +void en_reset __P((struct en_softc *)); |
