/* $NetBSD: i82557var.h,v 1.1 1999/06/20 16:33:29 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 i82557 fast Ethernet controller * 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 */ void *sc_sdhook; /* shutdown hook */ 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; /* receive buffer descriptors */ struct fxp_rxdesc sc_rxdescs[FXP_NRFABUFS]; 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 */ #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)) void fxp_attach __P((struct fxp_softc *)); int fxp_intr __P((void *));