1 /* $NetBSD: sgecvar.h,v 1.5 2005/02/27 00:27:02 perry Exp $ */ 2 /* 3 * Copyright (c) 1999 Ludd, University of Lule}, Sweden. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed at Ludd, University of 16 * Lule}, Sweden and its contributors. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _DEV_IC_SGECVAR_H_ 33 #define _DEV_IC_SGECVAR_H_ 34 35 #define RXDESCS 30 /* # of receive descriptors */ 36 #define TXDESCS 60 /* # transmit descs */ 37 38 /* 39 * Descriptors must be an even number; optimisation thing. 40 */ 41 struct ze_cdata { 42 struct ze_rdes zc_recv[RXDESCS+2]; /* Receive descriptors */ 43 struct ze_tdes zc_xmit[TXDESCS+2]; /* Transmit descriptors */ 44 u_int8_t zc_setup[128]; /* Setup packet layout */ 45 }; 46 47 struct ze_softc { 48 struct device sc_dev; /* Configuration common part */ 49 struct evcnt sc_intrcnt; /* Interrupt counters */ 50 struct ethercom sc_ec; /* Ethernet common part */ 51 #define sc_if sc_ec.ec_if /* network-visible interface */ 52 bus_space_tag_t sc_iot; 53 bus_addr_t sc_ioh; 54 bus_dma_tag_t sc_dmat; 55 struct ze_cdata *sc_zedata; /* Descriptor struct */ 56 struct ze_cdata *sc_pzedata; /* Physical address of above */ 57 bus_dmamap_t sc_cmap; /* Map for control structures */ 58 struct mbuf* sc_txmbuf[TXDESCS]; 59 struct mbuf* sc_rxmbuf[RXDESCS]; 60 bus_dmamap_t sc_xmtmap[TXDESCS]; 61 bus_dmamap_t sc_rcvmap[RXDESCS]; 62 int sc_intvec; /* Interrupt vector */ 63 int sc_nexttx; 64 int sc_inq; 65 int sc_lastack; 66 int sc_nextrx; 67 int sc_setup; /* Setup packet in queue */ 68 u_int8_t sc_enaddr[ETHER_ADDR_LEN]; 69 }; 70 71 void sgec_attach(struct ze_softc *); 72 int sgec_intr(struct ze_softc *); 73 74 #endif /* _DEV_IC_SGECVAR_H_ */ 75