Rough I2O LAN interface driver. Needs a bit of work.
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/* $NetBSD: ioplvar.h,v 1.1 2001/08/06 12:12:36 ad Exp $ */
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/*-
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Andrew Doran.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _I2O_IOPLVAR_H_
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#define _I2O_IOPLVAR_H_
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#define IOPL_TICK_HZ 3
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#define IOPL_DESCRIPTORS 128
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#define IOPL_MAX_SEGS 8 /* XXX */
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#define IOPL_MAX_BATCH 4
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#define IOPL_BATCHING_ENABLED 1
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struct iopl_media {
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u_int ilm_i2o;
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u_int ilm_ifmedia;
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};
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struct iopl_tx {
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SLIST_ENTRY(iopl_tx) tx_chain;
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struct mbuf *tx_mbuf;
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bus_dmamap_t tx_dmamap;
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int tx_ident;
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};
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struct iopl_rx {
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SLIST_ENTRY(iopl_rx) rx_chain;
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struct mbuf *rx_mbuf;
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bus_dmamap_t rx_dmamap;
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int rx_ident;
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};
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struct iopl_softc {
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struct device sc_dv; /* Generic device info */
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int sc_tid; /* Device TID */
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int sc_flags; /* Control flags */
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bus_dma_tag_t sc_dmat; /* DMA tag */
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struct iop_initiator sc_ii_evt; /* Event initiator */
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struct iop_initiator sc_ii_pg; /* PG retrieval initiator */
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struct iop_initiator sc_ii_rx; /* Receive initiator */
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struct iop_initiator sc_ii_tx; /* Transmit initiator */
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struct iop_initiator sc_ii_null; /* Bit-bucket */
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struct callout sc_pg_callout; /* PG retrieval callout */
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int sc_ms_pg; /* Medium-specific PG # */
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int sc_next_pg; /* Next PG to retrieve */
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int sc_mtype; /* Medium type */
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int sc_curmbps; /* Current link speed */
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int sc_conntype; /* Connection type */
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struct iopl_tx *sc_tx; /* Transmit descriptors */
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SLIST_HEAD(,iopl_tx) sc_tx_free; /* Free TX descriptor list */
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u_int sc_tx_freecnt; /* # of free TX descriptors */
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u_int sc_tx_cnt; /* # of TX descriptors */
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u_int sc_tx_maxout; /* Max outstanding xmits */
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u_int sc_tx_maxsegs; /* Max segments per xmit */
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u_int sc_tx_maxreq; /* Max xmits per message */
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u_int sc_tx_ohead; /* S/G list overhead */
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struct iopl_rx *sc_rx; /* Receive descriptors */
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SLIST_HEAD(,iopl_rx) sc_rx_free; /* Free RX descriptor list */
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u_int sc_rx_freecnt; /* # of free RX descriptors */
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u_int sc_rx_cnt; /* # of RX descriptors */
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u_int sc_rx_maxbkt; /* Max receive buckets */
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/*
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* Interface info
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*/
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union {
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struct ifnet sci_if;
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struct ethercom sci_ec;
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} sc_if;
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struct ifmedia sc_ifmedia; /* ifmedia linkage */
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/*
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* Parameter group buffers. We retrieve only one parameter group at
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* a time.
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*/
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struct {
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struct i2o_param_op_results pr;
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struct i2o_param_read_results prr;
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union {
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struct i2o_param_lan_stats ls;
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struct i2o_param_lan_802_3_stats les;
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struct i2o_param_lan_media_operation lmo;
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} p;
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} __attribute__ ((__packed__)) sc_pb;
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};
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#define IOPL_MEDIA_CHANGE 0x01
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#define IOPL_LINK 0x02
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#define IOPL_FDX 0x04
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#endif /* !_I2O_IOPLVAR_H_ */
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