if_admswvar.h revision 199762
1/* $NetBSD: if_admswvar.h,v 1.1 2007/03/20 08:52:02 dyoung Exp $ */ 2 3/*- 4 * Copyright (c) 2007 Ruslan Ermilov and Vsevolod Lobko. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or 8 * without modification, are permitted provided that the following 9 * conditions are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above 13 * copyright notice, this list of conditions and the following 14 * disclaimer in the documentation and/or other materials provided 15 * with the distribution. 16 * 3. The names of the authors may not be used to endorse or promote 17 * products derived from this software without specific prior 18 * written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY 21 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 22 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 23 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 25 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 26 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, 27 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 29 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 30 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 31 * OF SUCH DAMAGE. 32 */ 33#ifndef _IF_ADMSWVAR_H_ 34#define _IF_ADMSWVAR_H_ 35 36#include <sys/cdefs.h> 37__FBSDID("$FreeBSD: head/sys/mips/adm5120/if_admswvar.h 199762 2009-11-24 18:34:47Z jhb $"); 38 39#include <sys/param.h> 40#include <sys/systm.h> 41#include <sys/bus.h> 42#include <sys/kernel.h> 43#include <sys/mbuf.h> 44#include <sys/malloc.h> 45#include <sys/module.h> 46#include <sys/rman.h> 47#include <sys/socket.h> 48#include <sys/sockio.h> 49#include <sys/sysctl.h> 50#include <machine/bus.h> 51 52#include <net/ethernet.h> 53#include <net/if.h> 54#include <net/if_arp.h> 55#include <net/if_dl.h> 56#include <net/if_media.h> 57#include <net/if_mib.h> 58#include <net/if_types.h> 59 60#ifdef INET 61#include <netinet/in.h> 62#include <netinet/in_systm.h> 63#include <netinet/in_var.h> 64#include <netinet/ip.h> 65#endif 66 67#include <net/bpf.h> 68#include <net/bpfdesc.h> 69 70#include <dev/mii/mii.h> 71#include <dev/mii/miivar.h> 72 73#include <mips/adm5120/adm5120reg.h> 74#include <mips/adm5120/if_admswreg.h> 75 76#define MAC_BUFLEN 0x07ff 77 78#define ADMSW_NTXHDESC 4 79#define ADMSW_NRXHDESC 32 80#define ADMSW_NTXLDESC 32 81#define ADMSW_NRXLDESC 32 82 83#define ADMSW_NTXHDESC_MASK (ADMSW_NTXHDESC - 1) 84#define ADMSW_NRXHDESC_MASK (ADMSW_NRXHDESC - 1) 85#define ADMSW_NTXLDESC_MASK (ADMSW_NTXLDESC - 1) 86#define ADMSW_NRXLDESC_MASK (ADMSW_NRXLDESC - 1) 87 88#define ADMSW_NEXTTXH(x) (((x) + 1) & ADMSW_NTXHDESC_MASK) 89#define ADMSW_NEXTRXH(x) (((x) + 1) & ADMSW_NRXHDESC_MASK) 90#define ADMSW_NEXTTXL(x) (((x) + 1) & ADMSW_NTXLDESC_MASK) 91#define ADMSW_NEXTRXL(x) (((x) + 1) & ADMSW_NRXLDESC_MASK) 92 93#define ADMSW_IRQ 9 94 95struct admsw_control_data { 96 /* The transmit descriptors. */ 97 struct admsw_desc acd_txhdescs[ADMSW_NTXHDESC]; 98 99 /* The receive descriptors. */ 100 struct admsw_desc acd_rxhdescs[ADMSW_NRXHDESC]; 101 102 /* The transmit descriptors. */ 103 struct admsw_desc acd_txldescs[ADMSW_NTXLDESC]; 104 105 /* The receive descriptors. */ 106 struct admsw_desc acd_rxldescs[ADMSW_NRXLDESC]; 107}; 108 109#define ADMSW_CDOFF(x) offsetof(struct admsw_control_data, x) 110#define ADMSW_CDTXHOFF(x) ADMSW_CDOFF(acd_txhdescs[(x)]) 111#define ADMSW_CDTXLOFF(x) ADMSW_CDOFF(acd_txldescs[(x)]) 112#define ADMSW_CDRXHOFF(x) ADMSW_CDOFF(acd_rxhdescs[(x)]) 113#define ADMSW_CDRXLOFF(x) ADMSW_CDOFF(acd_rxldescs[(x)]) 114 115struct admsw_descsoft { 116 struct mbuf *ds_mbuf; 117 bus_dmamap_t ds_dmamap; 118 /* Up to 2 segments */ 119 uint32_t ds_addr[2]; 120 uint32_t ds_len[2]; 121 uint32_t ds_nsegs; 122}; 123 124/* 125 * Software state per device. 126 */ 127struct admsw_softc { 128 device_t sc_dev; /* generic device information */ 129 uint8_t sc_enaddr[ETHER_ADDR_LEN]; 130 bus_dma_tag_t sc_control_dmat; 131 /* bus DMA tag for control structs*/ 132 bus_dma_tag_t sc_bufs_dmat; /* bus DMA tag for buffers */ 133 struct ifmedia sc_ifmedia[SW_DEVS]; 134 int ndevs; /* number of IFF_RUNNING interfaces */ 135 struct ifnet *sc_ifnet[SW_DEVS]; 136 struct callout sc_watchdog; 137 int sc_timer; 138 /* Ethernet common data */ 139 void *sc_ih; /* interrupt cookie */ 140 struct resource *irq_res; 141 struct resource *mem_res; 142 bus_dmamap_t sc_cddmamap; /* control data DMA map */ 143 uint32_t sc_cddma; 144 struct admsw_control_data *sc_control_data; 145 146 struct admsw_descsoft sc_txhsoft[ADMSW_NTXHDESC]; 147 struct admsw_descsoft sc_rxhsoft[ADMSW_NRXHDESC]; 148 struct admsw_descsoft sc_txlsoft[ADMSW_NTXLDESC]; 149 struct admsw_descsoft sc_rxlsoft[ADMSW_NRXLDESC]; 150#define sc_txhdescs sc_control_data->acd_txhdescs 151#define sc_rxhdescs sc_control_data->acd_rxhdescs 152#define sc_txldescs sc_control_data->acd_txldescs 153#define sc_rxldescs sc_control_data->acd_rxldescs 154 155 int sc_txfree; /* number of free Tx descriptors */ 156 int sc_txnext; /* next Tx descriptor to use */ 157 int sc_txdirty; /* first dirty Tx descriptor */ 158 int sc_rxptr; /* next ready Rx descriptor */ 159}; 160 161#define ADMSW_CDTXHADDR(sc, x) ((sc)->sc_cddma + ADMSW_CDTXHOFF((x))) 162#define ADMSW_CDTXLADDR(sc, x) ((sc)->sc_cddma + ADMSW_CDTXLOFF((x))) 163#define ADMSW_CDRXHADDR(sc, x) ((sc)->sc_cddma + ADMSW_CDRXHOFF((x))) 164#define ADMSW_CDRXLADDR(sc, x) ((sc)->sc_cddma + ADMSW_CDRXLOFF((x))) 165 166#define ADMSW_CDTXHSYNC(sc, x, ops) \ 167 bus_dmamap_sync((sc)->sc_control_dmat, (sc)->sc_cddmamap, (ops)) 168 169#define ADMSW_CDTXLSYNC(sc, x, ops) \ 170 bus_dmamap_sync((sc)->sc_control_dmat, (sc)->sc_cddmamap, (ops)) 171 172#define ADMSW_CDRXHSYNC(sc, x, ops) \ 173 bus_dmamap_sync((sc)->sc_control_dmat, (sc)->sc_cddmamap, (ops)) 174 175#define ADMSW_CDRXLSYNC(sc, x, ops) \ 176 bus_dmamap_sync((sc)->sc_control_dmat, (sc)->sc_cddmamap, (ops)) 177 178#define ADMSW_INIT_RXHDESC(sc, x) \ 179do { \ 180 struct admsw_descsoft *__ds = &(sc)->sc_rxhsoft[(x)]; \ 181 struct admsw_desc *__desc = &(sc)->sc_rxhdescs[(x)]; \ 182 struct mbuf *__m = __ds->ds_mbuf; \ 183 \ 184 __m->m_data = __m->m_ext.ext_buf + 2; \ 185 __desc->data = __ds->ds_addr[0] + 2; \ 186 __desc->cntl = 0; \ 187 __desc->len = min(MCLBYTES - 2, MAC_BUFLEN - 2); \ 188 __desc->status = 0; \ 189 if ((x) == ADMSW_NRXHDESC - 1) \ 190 __desc->data |= ADM5120_DMA_RINGEND; \ 191 __desc->data |= ADM5120_DMA_OWN; \ 192 ADMSW_CDRXHSYNC((sc), (x), BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); \ 193} while (0) 194 195#define ADMSW_INIT_RXLDESC(sc, x) \ 196do { \ 197 struct admsw_descsoft *__ds = &(sc)->sc_rxlsoft[(x)]; \ 198 struct admsw_desc *__desc = &(sc)->sc_rxldescs[(x)]; \ 199 struct mbuf *__m = __ds->ds_mbuf; \ 200 \ 201 __m->m_data = __m->m_ext.ext_buf + 2; \ 202 __desc->data = __ds->ds_addr[0] + 2; \ 203 __desc->cntl = 0; \ 204 __desc->len = min(MCLBYTES - 2, MAC_BUFLEN - 2); \ 205 __desc->status = 0; \ 206 if ((x) == ADMSW_NRXLDESC - 1) \ 207 __desc->data |= ADM5120_DMA_RINGEND; \ 208 __desc->data |= ADM5120_DMA_OWN; \ 209 ADMSW_CDRXLSYNC((sc), (x), BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); \ 210} while (0) 211 212void admwdog_attach(struct admsw_softc *); 213 214#endif /* _IF_ADMSWVAR_H_ */ 215