/*      $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;
};