/*-
* Copyright (c) 1997, 1998, 1999, 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
* NASA Ames Research Center.
*
* 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*/
/*
* Copyright (c) 1995, David Greenman
* 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 unmodified, 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
*
* Id: if_fxpvar.h,v 1.4 1997/11/29 08:11:01 davidg Exp
*/
/*
* Number of receive frame area buffers. These are large, so
* choose wisely.
*/
#define FXP_NRFABUFS 128
/*
* Maximum number of seconds that the receiver can be idle before we
* assume it's dead and attempt to reset it by reprogramming the
* multicast filter. This is part of a work-around for a bug in the
* NIC. See fxp_stats_update().
*/
#define FXP_MAX_RX_IDLE 15
/*
* Misc. DMA'd data structures are allocated in a single clump, that
* maps to a single DMA segment, to make several things easier (computing
* offsets, setting up DMA maps, etc.)
*/
struct fxp_control_data {
/*
* The transmit control blocks and transmit buffer descriptors.
* We arrange them like this so that everything is all lined
* up to use the extended TxCB feature.
*/
struct fxp_txdesc {
struct fxp_cb_tx txd_txcb;
union {
struct fxp_ipcb txdu_ipcb;
struct fxp_tbd txdu_tbd[FXP_NTXSEG];
} txd_u;
} fcd_txdescs[FXP_NTXCB];
/*
* The configuration CB.
*/
struct fxp_cb_config fcd_configcb;
/*
* The Individual Address CB.
*/
struct fxp_cb_ias fcd_iascb;
/*
* The multicast setup CB.
*/
struct fxp_cb_mcs fcd_mcscb;
/*
* The microcode setup CB.
*/
struct fxp_cb_ucode fcd_ucode;
/*
* The NIC statistics.
*/
struct fxp_stats fcd_stats;
/*
* TX pad buffer for ip4csum-tx bug workaround.
*/
uint8_t fcd_txpad[FXP_IP4CSUMTX_PADLEN];
};
/*
* Software state for transmit descriptors.
*/
struct fxp_txsoft {
struct mbuf *txs_mbuf; /* head of mbuf chain */
bus_dmamap_t txs_dmamap; /* our DMA map */
};
/*
* Software state per device.
*/
struct fxp_softc {
device_t sc_dev;
bus_space_tag_t sc_st; /* bus space tag */
bus_space_handle_t sc_sh; /* bus space handle */
bus_size_t sc_size; /* bus space size */
bus_dma_tag_t sc_dmat; /* bus dma tag */
struct ethercom sc_ethercom; /* ethernet common part */
void *sc_ih; /* interrupt handler cookie */
struct mii_data sc_mii; /* MII/media information */
struct callout sc_callout; /* MII callout */
/*
* We create a single DMA map that maps all data structure
* overhead, except for RFAs, which are mapped by the
* fxp_rxdesc DMA map on a per-mbuf basis.
*/
bus_dmamap_t sc_dmamap;
#define sc_cddma sc_dmamap->dm_segs[0].ds_addr
/*
* Software state for transmit descriptors.
*/
struct fxp_txsoft sc_txsoft[FXP_NTXCB];
int sc_rfa_size; /* size of the RFA structure */
struct ifqueue sc_rxq; /* receive buffer queue */
bus_dmamap_t sc_rxmaps[FXP_NRFABUFS]; /* free receive buffer DMA maps */
int sc_rxfree; /* free map index */
int sc_rxidle; /* # of seconds RX has been idle */
uint16_t sc_txcmd; /* transmit command (LITTLE ENDIAN) */
/*
* Control data structures.
*/
struct fxp_control_data *sc_control_data;
