/*      $NetBSD: if_xevar.h,v 1.5 2010/04/24 19:58:13 dbj Exp $ */
/*
* Copyright (c) 1998 Darrin B. Jewell
* 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.
*
* 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.
*/

struct xe_softc {
       struct mb8795_softc     sc_mb8795;      /* glue to MI code */

       bus_space_tag_t         sc_bst;         /* bus space tag */
       bus_space_handle_t      sc_bsh;         /* bus space handle */

       struct nextdma_softc    *sc_rxdma;
       struct nextdma_softc    *sc_txdma;

       bus_dmamap_t            sc_tx_dmamap;   /* should we have multiple of these? */
       struct mbuf             *sc_tx_mb_head; /* pointer to data for this command */
       int sc_tx_loaded;
       u_char                  *sc_txbuf;      /* to solve alignment problems, we
                                                * copy the mbuf into this buffer before
                                                * trying to DMA it */

       bus_dmamap_t            sc_rx_dmamap[MB8795_NRXBUFS];
       struct mbuf             *sc_rx_mb_head[MB8795_NRXBUFS];
       int                     sc_rx_loaded_idx;
       int                     sc_rx_completed_idx;
       int                     sc_rx_handled_idx;
};