The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/hmevar.h

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    1 /*      $OpenBSD: hmevar.h,v 1.17 2014/11/27 14:53:42 brad Exp $        */
    2 /*      $NetBSD: hmevar.h,v 1.6 2000/09/28 10:56:57 tsutsui Exp $       */
    3 
    4 /*-
    5  * Copyright (c) 1999 The NetBSD Foundation, Inc.
    6  * All rights reserved.
    7  *
    8  * This code is derived from software contributed to The NetBSD Foundation
    9  * by Paul Kranenburg.
   10  *
   11  * Redistribution and use in source and binary forms, with or without
   12  * modification, are permitted provided that the following conditions
   13  * are met:
   14  * 1. Redistributions of source code must retain the above copyright
   15  *    notice, this list of conditions and the following disclaimer.
   16  * 2. Redistributions in binary form must reproduce the above copyright
   17  *    notice, this list of conditions and the following disclaimer in the
   18  *    documentation and/or other materials provided with the distribution.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   30  * POSSIBILITY OF SUCH DAMAGE.
   31  */
   32 
   33 #include <sys/timeout.h>
   34 
   35 #define HME_TX_RING_SIZE        64
   36 #define HME_RX_RING_SIZE        64
   37 #define HME_RX_RING_MAX         256
   38 #define HME_TX_RING_MAX         256
   39 #define HME_RX_PKTSIZE          1600
   40 #define HME_TX_NSEGS            16
   41 
   42 struct hme_sxd {
   43         struct mbuf *sd_mbuf;           /* descriptor mbuf */
   44         bus_dmamap_t sd_map;            /* descriptor dmamap */
   45 };
   46 
   47 struct hme_ring {
   48         /* Ring Descriptors */
   49         caddr_t         rb_membase;     /* Packet buffer: CPU address */
   50         bus_addr_t      rb_dmabase;     /* Packet buffer: DMA address */
   51         caddr_t         rb_txd;         /* Transmit descriptors */
   52         bus_addr_t      rb_txddma;      /* DMA address of same */
   53         caddr_t         rb_rxd;         /* Receive descriptors */
   54         bus_addr_t      rb_rxddma;      /* DMA address of same */
   55 };
   56 
   57 struct hme_softc {
   58         struct device   sc_dev;         /* boilerplate device view */
   59         struct arpcom   sc_arpcom;      /* Ethernet common part */
   60         struct mii_data sc_mii;         /* MII media control */
   61 #define sc_media        sc_mii.mii_media/* shorthand */
   62         struct timeout  sc_tick_ch;     /* tick callout */
   63 
   64         /* The following bus handles are to be provided by the bus front-end */
   65         bus_space_tag_t sc_bustag;      /* bus tag */
   66         bus_dma_tag_t   sc_dmatag;      /* bus dma tag */
   67         bus_dmamap_t    sc_dmamap;      /* bus dma handle */
   68         bus_space_handle_t sc_seb;      /* HME Global registers */
   69         bus_space_handle_t sc_erx;      /* HME ERX registers */
   70         bus_space_handle_t sc_etx;      /* HME ETX registers */
   71         bus_space_handle_t sc_mac;      /* HME MAC registers */
   72         bus_space_handle_t sc_mif;      /* HME MIF registers */
   73         int             sc_burst;       /* DVMA burst size in effect */
   74         int             sc_phys[2];     /* MII instance -> PHY map */
   75 
   76         int             sc_pci;         /* XXXXX -- PCI buses are LE. */
   77 
   78         /* Ring descriptor */
   79         struct hme_ring         sc_rb;
   80 
   81         int                     sc_debug;
   82 
   83         struct hme_sxd sc_txd[HME_TX_RING_MAX], sc_rxd[HME_RX_RING_MAX];
   84         bus_dmamap_t    sc_rxmap_spare;
   85         int     sc_tx_cnt, sc_tx_prod, sc_tx_cons;
   86         struct if_rxring sc_rx_ring;
   87         int     sc_rx_prod, sc_rx_cons;
   88         u_int32_t sc_tcvr;
   89 };
   90 
   91 
   92 void    hme_config(struct hme_softc *);
   93 void    hme_unconfig(struct hme_softc *);
   94 void    hme_reset(struct hme_softc *);
   95 int     hme_intr(void *);

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