1 /* $NetBSD: aic6915var.h,v 1.2 2008/04/28 20:23:49 martin Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _DEV_IC_AIC6915VAR_H_ 33 #define _DEV_IC_AIC6915VAR_H_ 34 35 #include <sys/callout.h> 36 37 /* 38 * Data structure definitions for the Adaptec AIC-6915 (``Starfire'') 39 * PCI 10/100 Ethernet controller driver. 40 */ 41 42 /* 43 * Transmit descriptor list size. 44 */ 45 #define SF_NTXDESC 256 46 #define SF_NTXDESC_MASK (SF_NTXDESC - 1) 47 #define SF_NEXTTX(x) ((x + 1) & SF_NTXDESC_MASK) 48 49 /* 50 * Transmit completion queue size. 1024 is a hardware requirement. 51 */ 52 #define SF_NTCD 1024 53 #define SF_NTCD_MASK (SF_NTCD - 1) 54 #define SF_NEXTTCD(x) ((x + 1) & SF_NTCD_MASK) 55 56 /* 57 * Receive descriptor list size. 58 */ 59 #define SF_NRXDESC 256 60 #define SF_NRXDESC_MASK (SF_NRXDESC - 1) 61 #define SF_NEXTRX(x) ((x + 1) & SF_NRXDESC_MASK) 62 63 /* 64 * Receive completion queue size. 1024 is a hardware requirement. 65 */ 66 #define SF_NRCD 1024 67 #define SF_NRCD_MASK (SF_NRCD - 1) 68 #define SF_NEXTRCD(x) ((x + 1) & SF_NRCD_MASK) 69 70 /* 71 * Control structures are DMA to the Starfire chip. We allocate them in 72 * a single clump that maps to a single DMA segment to make several things 73 * easier. 74 */ 75 struct sf_control_data { 76 /* 77 * The transmit descriptors. 78 */ 79 struct sf_txdesc0 scd_txdescs[SF_NTXDESC]; 80 81 /* 82 * The transmit completion queue entires. 83 */ 84 struct sf_tcd scd_txcomp[SF_NTCD]; 85 86 /* 87 * The receive buffer descriptors. 88 */ 89 struct sf_rbd32 scd_rxbufdescs[SF_NRXDESC]; 90 91 /* 92 * The receive completion queue entries. 93 */ 94 struct sf_rcd_full scd_rxcomp[SF_NRCD]; 95 }; 96 97 #define SF_CDOFF(x) offsetof(struct sf_control_data, x) 98 #define SF_CDTXDOFF(x) SF_CDOFF(scd_txdescs[(x)]) 99 #define SF_CDTXCOFF(x) SF_CDOFF(scd_txcomp[(x)]) 100 #define SF_CDRXDOFF(x) SF_CDOFF(scd_rxbufdescs[(x)]) 101 #define SF_CDRXCOFF(x) SF_CDOFF(scd_rxcomp[(x)]) 102 103 /* 104 * Software state for transmit and receive descriptors. 105 */ 106 struct sf_descsoft { 107 struct mbuf *ds_mbuf; /* head of mbuf chain */ 108 bus_dmamap_t ds_dmamap; /* our DMA map */ 109 }; 110 111 /* 112 * Software state per device. 113 */ 114 struct sf_softc { 115 struct device sc_dev; /* generic device information */ 116 bus_space_tag_t sc_st; /* bus space tag */ 117 bus_space_handle_t sc_sh; /* bus space handle */ 118 bus_space_handle_t sc_sh_func; /* sub-handle for func regs */ 119 bus_dma_tag_t sc_dmat; /* bus DMA tag */ 120 struct ethercom sc_ethercom; /* ethernet common data */ 121 void *sc_sdhook; /* shutdown hook */ 122 int sc_iomapped; /* are we I/O mapped? */ 123 124 struct mii_data sc_mii; /* MII/media information */ 125 struct callout sc_tick_callout; /* MII callout */ 126 127 bus_dmamap_t sc_cddmamap; /* control data DMA map */ 128 #define sc_cddma sc_cddmamap->dm_segs[0].ds_addr 129 130 /* 131 * Software state for transmit and receive descriptors. 132 */ 133 struct sf_descsoft sc_txsoft[SF_NTXDESC]; 134 struct sf_descsoft sc_rxsoft[SF_NRXDESC]; 135 136 /* 137 * Control data structures. 138 */ 139 struct sf_control_data *sc_control_data; 140 #define sc_txdescs sc_control_data->scd_txdescs 141 #define sc_txcomp sc_control_data->scd_txcomp 142 #define sc_rxbufdescs sc_control_data->scd_rxbufdescs 143 #define sc_rxcomp sc_control_data->scd_rxcomp 144 145 int sc_txpending; /* number of Tx requests pending */ 146 147 uint32_t sc_InterruptEn; /* prototype InterruptEn register */ 148 149 uint32_t sc_TransmitFrameCSR; /* prototype TransmitFrameCSR reg */ 150 uint32_t sc_TxDescQueueCtrl; /* prototype TxDescQueueCtrl reg */ 151 int sc_txthresh; /* current Tx threshold */ 152 153 uint32_t sc_MacConfig1; /* prototype MacConfig1 register */ 154 155 uint32_t sc_RxAddressFilteringCtl; 156 }; 157 158 #define SF_CDTXDADDR(sc, x) ((sc)->sc_cddma + SF_CDTXDOFF((x))) 159 #define SF_CDTXCADDR(sc, x) ((sc)->sc_cddma + SF_CDTXCOFF((x))) 160 #define SF_CDRXDADDR(sc, x) ((sc)->sc_cddma + SF_CDRXDOFF((x))) 161 #define SF_CDRXCADDR(sc, x) ((sc)->sc_cddma + SF_CDRXCOFF((x))) 162 163 #define SF_CDTXDSYNC(sc, x, ops) \ 164 bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_cddmamap, \ 165 SF_CDTXDOFF((x)), sizeof(struct sf_txdesc0), (ops)) 166 167 #define SF_CDTXCSYNC(sc, x, ops) \ 168 bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_cddmamap, \ 169 SF_CDTXCOFF((x)), sizeof(struct sf_tcd), (ops)) 170 171 #define SF_CDRXDSYNC(sc, x, ops) \ 172 bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_cddmamap, \ 173 SF_CDRXDOFF((x)), sizeof(struct sf_rbd32), (ops)) 174 175 #define SF_CDRXCSYNC(sc, x, ops) \ 176 bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_cddmamap, \ 177 SF_CDRXCOFF((x)), sizeof(struct sf_rcd_full), (ops)) 178 179 #define SF_INIT_RXDESC(sc, x) \ 180 do { \ 181 struct sf_descsoft *__ds = &sc->sc_rxsoft[(x)]; \ 182 \ 183 (sc)->sc_rxbufdescs[(x)].rbd32_addr = \ 184 __ds->ds_dmamap->dm_segs[0].ds_addr | RBD_V; \ 185 SF_CDRXDSYNC((sc), (x), BUS_DMASYNC_PREWRITE); \ 186 } while (/*CONSTCOND*/0) 187 188 #ifdef _KERNEL 189 void sf_attach(struct sf_softc *); 190 int sf_intr(void *); 191 #endif /* _KERNEL */ 192 193 #endif /* _DEV_IC_AIC6915VAR_H_ */ 194