i82557var.h revision 1.1
1 /* $NetBSD: i82557var.h,v 1.1 1999/06/20 16:33:29 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1997, 1998 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 of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /* 41 * Copyright (c) 1995, David Greenman 42 * All rights reserved. 43 * 44 * Redistribution and use in source and binary forms, with or without 45 * modification, are permitted provided that the following conditions 46 * are met: 47 * 1. Redistributions of source code must retain the above copyright 48 * notice unmodified, this list of conditions, and the following 49 * disclaimer. 50 * 2. Redistributions in binary form must reproduce the above copyright 51 * notice, this list of conditions and the following disclaimer in the 52 * documentation and/or other materials provided with the distribution. 53 * 54 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 57 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 58 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 59 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 60 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 61 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 62 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 64 * SUCH DAMAGE. 65 * 66 * Id: if_fxpvar.h,v 1.4 1997/11/29 08:11:01 davidg Exp 67 */ 68 69 /* 70 * Misc. defintions for the Intel i82557 fast Ethernet controller 71 * driver. 72 */ 73 74 /* 75 * Number of transmit control blocks. This determines the number 76 * of transmit buffers that can be chained in the CB list. This 77 * must be a power of two. 78 */ 79 #define FXP_NTXCB 128 80 81 /* 82 * TxCB list index mask. This is used to do list wrap-around. 83 */ 84 #define FXP_TXCB_MASK (FXP_NTXCB - 1) 85 86 /* 87 * Number of receive frame area buffers. These are large, so 88 * choose wisely. 89 */ 90 #define FXP_NRFABUFS 64 91 92 /* 93 * Maximum number of seconds that the reciever can be idle before we 94 * assume it's dead and attempt to reset it by reprogramming the 95 * multicast filter. This is part of a work-around for a bug in the 96 * NIC. See fxp_stats_update(). 97 */ 98 #define FXP_MAX_RX_IDLE 15 99 100 /* 101 * Misc. DMA'd data structures are allocated in a single clump, that 102 * maps to a single DMA segment, to make several things easier (computing 103 * offsets, setting up DMA maps, etc.) 104 */ 105 struct fxp_control_data { 106 /* 107 * The transmit control blocks. The first if these 108 * is also used as the config CB. 109 */ 110 struct fxp_cb_tx fcd_txcbs[FXP_NTXCB]; 111 112 /* 113 * The multicast setup CB. 114 */ 115 struct fxp_cb_mcs fcd_mcscb; 116 117 /* 118 * The NIC statistics. 119 */ 120 struct fxp_stats fcd_stats; 121 }; 122 123 #define FXP_CDOFF(x) offsetof(struct fxp_control_data, x) 124 125 /* 126 * Receive buffer descriptor (software only). This is the analog of 127 * the software portion of the fxp_cb_tx. 128 */ 129 struct fxp_rxdesc { 130 struct fxp_rxdesc *fr_next; /* next in the chain */ 131 struct mbuf *fr_mbhead; /* pointer to mbuf chain */ 132 bus_dmamap_t fr_dmamap; /* our DMA map */ 133 }; 134 135 struct fxp_softc { 136 struct device sc_dev; /* generic device structures */ 137 void *sc_ih; /* interrupt handler cookie */ 138 void *sc_sdhook; /* shutdown hook */ 139 bus_space_tag_t sc_st; /* bus space tag */ 140 bus_space_handle_t sc_sh; /* bus space handle */ 141 bus_dma_tag_t sc_dmat; /* bus dma tag */ 142 struct ethercom sc_ethercom; /* ethernet common part */ 143 #define sc_if sc_ethercom.ec_if 144 145 /* 146 * We create a single DMA map that maps all data structure 147 * overhead, except for RFAs, which are mapped by the 148 * fxp_rxdesc DMA map on a per-mbuf basis. 149 */ 150 bus_dmamap_t sc_dmamap; 151 #define sc_cddma sc_dmamap->dm_segs[0].ds_addr 152 153 /* 154 * These DMA maps map transmit and recieve buffers. 155 */ 156 bus_dmamap_t sc_tx_dmamaps[FXP_NTXCB]; 157 bus_dmamap_t sc_rx_dmamaps[FXP_NRFABUFS]; 158 159 /* 160 * Control data - TxCBs, stats, etc. 161 */ 162 struct fxp_control_data *control_data; 163 164 /* receive buffer descriptors */ 165 struct fxp_rxdesc sc_rxdescs[FXP_NRFABUFS]; 166 struct mii_data sc_mii; /* MII media information */ 167 struct fxp_cb_tx *cbl_first; /* first active TxCB in list */ 168 struct fxp_cb_tx *cbl_last; /* last active TxCB in list */ 169 int tx_queued; /* # of active TxCB's */ 170 int need_mcsetup; /* multicast filter needs programming */ 171 struct fxp_rxdesc *rfa_head; /* first mbuf in receive frame area */ 172 struct fxp_rxdesc *rfa_tail; /* last mbuf in receive frame area */ 173 int rx_idle_secs; /* # of seconds RX has been idle */ 174 int all_mcasts; /* receive all multicasts */ 175 int promisc_mode; /* promiscuous mode enabled */ 176 int phy_primary_addr; /* address of primary PHY */ 177 int phy_primary_device; /* device type of primary PHY */ 178 int phy_10Mbps_only; /* PHY is 10Mbps-only device */ 179 #if NRND > 0 180 rndsource_element_t rnd_source; /* random source */ 181 #endif 182 }; 183 184 /* Macros to ease CSR access. */ 185 #define CSR_READ_1(sc, reg) \ 186 bus_space_read_1((sc)->sc_st, (sc)->sc_sh, (reg)) 187 #define CSR_READ_2(sc, reg) \ 188 bus_space_read_2((sc)->sc_st, (sc)->sc_sh, (reg)) 189 #define CSR_READ_4(sc, reg) \ 190 bus_space_read_4((sc)->sc_st, (sc)->sc_sh, (reg)) 191 #define CSR_WRITE_1(sc, reg, val) \ 192 bus_space_write_1((sc)->sc_st, (sc)->sc_sh, (reg), (val)) 193 #define CSR_WRITE_2(sc, reg, val) \ 194 bus_space_write_2((sc)->sc_st, (sc)->sc_sh, (reg), (val)) 195 #define CSR_WRITE_4(sc, reg, val) \ 196 bus_space_write_4((sc)->sc_st, (sc)->sc_sh, (reg), (val)) 197 198 void fxp_attach __P((struct fxp_softc *)); 199 int fxp_intr __P((void *)); 200
Indexes created Mon Sep 29 21:09:56 GMT 2025