201 lines
7.4 KiB
C
201 lines
7.4 KiB
C
/* $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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* 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 u_long
|
|
|
|
struct midway_device {
|
|
char dv_xname[IFNAMSIZ];
|
|
};
|
|
|
|
#define DV_IFNET 1
|
|
|
|
#endif
|
|
|
|
/*
|
|
* softc
|
|
*/
|
|
|
|
struct en_softc {
|
|
/* bsd glue */
|
|
struct midway_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)(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 */
|
|
|
|
u_int8_t macaddr[6]; /* card unique mac address */
|
|
|
|
/* 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(struct en_softc *);
|
|
EN_INTR_TYPE en_intr(void *);
|
|
void en_reset(struct en_softc *);
|