NetBSD/sys/dev/pci/if_fxpvar.h

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/* $NetBSD: if_fxpvar.h,v 1.9 1999/02/18 01:23:41 thorpej Exp $ */
/*-
* Copyright (c) 1997, 1998 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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
*/
/*
* Misc. defintions for the Intel EtherExpress Pro/100B PCI Fast
* Ethernet driver
*/
/*
* Number of transmit control blocks. This determines the number
* of transmit buffers that can be chained in the CB list. This
* must be a power of two.
*/
#define FXP_NTXCB 128
/*
* TxCB list index mask. This is used to do list wrap-around.
*/
#define FXP_TXCB_MASK (FXP_NTXCB - 1)
/*
* Number of receive frame area buffers. These are large, so
* choose wisely.
*/
#define FXP_NRFABUFS 64
/*
* Maximum number of seconds that the reciever 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. The first if these
* is also used as the config CB.
*/
struct fxp_cb_tx fcd_txcbs[FXP_NTXCB];
/*
* The multicast setup CB.
*/
struct fxp_cb_mcs fcd_mcscb;
/*
* The NIC statistics.
*/
struct fxp_stats fcd_stats;
};
#define FXP_CDOFF(x) offsetof(struct fxp_control_data, x)
/*
* Receive buffer descriptor (software only). This is the analog of
* the software portion of the fxp_cb_tx.
*/
struct fxp_rxdesc {
struct fxp_rxdesc *fr_next; /* next in the chain */
struct mbuf *fr_mbhead; /* pointer to mbuf chain */
bus_dmamap_t fr_dmamap; /* our DMA map */
};
struct fxp_softc {
struct device sc_dev; /* generic device structures */
void *sc_ih; /* interrupt handler cookie */
bus_space_tag_t sc_st; /* bus space tag */
bus_space_handle_t sc_sh; /* bus space handle */
bus_dma_tag_t sc_dmat; /* bus dma tag */
struct ethercom sc_ethercom; /* ethernet common part */
#define sc_if sc_ethercom.ec_if
/*
* 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
/*
* These DMA maps map transmit and recieve buffers.
*/
bus_dmamap_t sc_tx_dmamaps[FXP_NTXCB];
bus_dmamap_t sc_rx_dmamaps[FXP_NRFABUFS];
/*
* Control data - TxCBs, stats, etc.
*/
struct fxp_control_data *control_data;
struct fxp_rxdesc *sc_rxdescs; /* receive buffer descriptors */
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struct mii_data sc_mii; /* MII media information */
struct fxp_cb_tx *cbl_first; /* first active TxCB in list */
struct fxp_cb_tx *cbl_last; /* last active TxCB in list */
int tx_queued; /* # of active TxCB's */
int need_mcsetup; /* multicast filter needs programming */
struct fxp_rxdesc *rfa_head; /* first mbuf in receive frame area */
struct fxp_rxdesc *rfa_tail; /* last mbuf in receive frame area */
int rx_idle_secs; /* # of seconds RX has been idle */
int all_mcasts; /* receive all multicasts */
int promisc_mode; /* promiscuous mode enabled */
int phy_primary_addr; /* address of primary PHY */
int phy_primary_device; /* device type of primary PHY */
int phy_10Mbps_only; /* PHY is 10Mbps-only device */
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#if NRND > 0
rndsource_element_t rnd_source; /* random source */
#endif
};
/* Macros to ease CSR access. */
#define CSR_READ_1(sc, reg) \
bus_space_read_1((sc)->sc_st, (sc)->sc_sh, (reg))
#define CSR_READ_2(sc, reg) \
bus_space_read_2((sc)->sc_st, (sc)->sc_sh, (reg))
#define CSR_READ_4(sc, reg) \
bus_space_read_4((sc)->sc_st, (sc)->sc_sh, (reg))
#define CSR_WRITE_1(sc, reg, val) \
bus_space_write_1((sc)->sc_st, (sc)->sc_sh, (reg), (val))
#define CSR_WRITE_2(sc, reg, val) \
bus_space_write_2((sc)->sc_st, (sc)->sc_sh, (reg), (val))
#define CSR_WRITE_4(sc, reg, val) \
bus_space_write_4((sc)->sc_st, (sc)->sc_sh, (reg), (val))