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      1 /*      $NetBSD: sgecvar.h,v 1.9 2017/05/22 17:23:49 ragge 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  *
     14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     15  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     16  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     17  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     18  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     19  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     20  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     21  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef _DEV_IC_SGECVAR_H_
     27 #define _DEV_IC_SGECVAR_H_
     28 
     29 #define RXDESCS	30	/* # of receive descriptors */
     30 #define TXDESCS	60	/* # transmit descs */
     31 
     32 /*
     33  * Descriptors must be an even number; optimisation thing.
     34  */
     35 struct ze_cdata {
     36 	struct ze_rdes	zc_recv[RXDESCS+2];	/* Receive descriptors */
     37 	struct ze_tdes	zc_xmit[TXDESCS+2];	/* Transmit descriptors */
     38 	u_int8_t	zc_setup[128];		/* Setup packet layout */
     39 };
     40 
     41 struct	ze_softc {
     42 	device_t	sc_dev;		/* Configuration common part	*/
     43 	struct evcnt	sc_intrcnt;	/* Interrupt counters		*/
     44 	struct evcnt	sc_rxintrcnt;	/* Interrupt counters		*/
     45 	struct evcnt	sc_txintrcnt;	/* Interrupt counters		*/
     46 	struct evcnt	sc_txdraincnt;	/* Interrupt counters		*/
     47 	struct evcnt	sc_nobufintrcnt; /* Interrupt counters		*/
     48 	struct evcnt	sc_nointrcnt;	/* Interrupt counters		*/
     49 	struct ethercom sc_ec;		/* Ethernet common part		*/
     50 #define sc_if	sc_ec.ec_if		/* network-visible interface	*/
     51 	bus_space_tag_t sc_iot;
     52 	bus_addr_t	sc_ioh;
     53 	bus_dma_tag_t	sc_dmat;
     54 	struct ze_cdata *sc_zedata;	/* Descriptor struct		*/
     55 	struct ze_cdata *sc_pzedata;	/* Physical address of above	*/
     56 	bus_dmamap_t	sc_cmap;	/* Map for control structures	*/
     57 	struct mbuf*	sc_txmbuf[TXDESCS];
     58 	struct mbuf*	sc_rxmbuf[RXDESCS];
     59 	bus_dmamap_t	sc_xmtmap[TXDESCS];
     60 	bus_dmamap_t	sc_rcvmap[RXDESCS];
     61 	int		sc_intvec;	/* Interrupt vector		*/
     62 	int		sc_nexttx;
     63 	int		sc_txcnt;
     64 	int		sc_inq;
     65 	int		sc_lastack;
     66 	int		sc_nextrx;
     67 	int		sc_setup;	/* Setup packet in queue	*/
     68 	u_int8_t 	sc_enaddr[ETHER_ADDR_LEN];
     69 };
     70 
     71 void	sgec_attach(struct ze_softc *);
     72 int	sgec_intr(struct ze_softc *);
     73 
     74 #endif /* _DEV_IC_SGECVAR_H_ */
     75