sys/dev/ic/sgecvar.h

   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         device_t        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_ */