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sgecvar.h revision 1.7 
      1 /*      $NetBSD: sgecvar.h,v 1.7 2007/04/26 23:08:22 matt Exp $ */
      2 /*
      3  * Copyright (c) 1999 Ludd, University of Lule}, Sweden. All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  * 3. All advertising materials mentioning features or use of this software
     14  *    must display the following acknowledgement:
     15  *      This product includes software developed at Ludd, University of
     16  *      Lule}, Sweden and its contributors.
     17  * 4. The name of the author may not be used to endorse or promote products
     18  *    derived from this software without specific prior written permission
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _DEV_IC_SGECVAR_H_
     33 #define _DEV_IC_SGECVAR_H_
     34 
     35 #define RXDESCS	30	/* # of receive descriptors */
     36 #define TXDESCS	60	/* # transmit descs */
     37 
     38 /*
     39  * Descriptors must be an even number; optimisation thing.
     40  */
     41 struct ze_cdata {
     42 	struct ze_rdes	zc_recv[RXDESCS+2];	/* Receive descriptors */
     43 	struct ze_tdes	zc_xmit[TXDESCS+2];	/* Transmit descriptors */
     44 	u_int8_t	zc_setup[128];		/* Setup packet layout */
     45 };
     46 
     47 struct	ze_softc {
     48 	struct device	sc_dev;		/* Configuration common part	*/
     49 	struct evcnt	sc_intrcnt;	/* Interrupt counters		*/
     50 	struct evcnt	sc_rxintrcnt;	/* Interrupt counters		*/
     51 	struct evcnt	sc_txintrcnt;	/* Interrupt counters		*/
     52 	struct evcnt	sc_txdraincnt;	/* Interrupt counters		*/
     53 	struct evcnt	sc_nobufintrcnt; /* Interrupt counters		*/
     54 	struct evcnt	sc_nointrcnt;	/* Interrupt counters		*/
     55 	struct ethercom sc_ec;		/* Ethernet common part		*/
     56 #define sc_if	sc_ec.ec_if		/* network-visible interface	*/
     57 	bus_space_tag_t sc_iot;
     58 	bus_addr_t	sc_ioh;
     59 	bus_dma_tag_t	sc_dmat;
     60 	struct ze_cdata *sc_zedata;	/* Descriptor struct		*/
     61 	struct ze_cdata *sc_pzedata;	/* Physical address of above	*/
     62 	bus_dmamap_t	sc_cmap;	/* Map for control structures	*/
     63 	struct mbuf*	sc_txmbuf[TXDESCS];
     64 	struct mbuf*	sc_rxmbuf[RXDESCS];
     65 	bus_dmamap_t	sc_xmtmap[TXDESCS];
     66 	bus_dmamap_t	sc_rcvmap[RXDESCS];
     67 	int		sc_intvec;	/* Interrupt vector		*/
     68 	int		sc_nexttx;
     69 	int		sc_txcnt;
     70 	int		sc_inq;
     71 	int		sc_lastack;
     72 	int		sc_nextrx;
     73 	int		sc_setup;	/* Setup packet in queue	*/
     74 	u_int8_t 	sc_enaddr[ETHER_ADDR_LEN];
     75 };
     76 
     77 void	sgec_attach(struct ze_softc *);
     78 int	sgec_intr(struct ze_softc *);
     79 
     80 #endif /* _DEV_IC_SGECVAR_H_ */
     81