ld_twe.c revision 1.1.2.2
1 1.1.2.2 bouyer /* $NetBSD: ld_twe.c,v 1.1.2.2 2000/12/08 09:12:32 bouyer Exp $ */ 2 1.1.2.2 bouyer 3 1.1.2.2 bouyer /*- 4 1.1.2.2 bouyer * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 1.1.2.2 bouyer * All rights reserved. 6 1.1.2.2 bouyer * 7 1.1.2.2 bouyer * This code is derived from software contributed to The NetBSD Foundation 8 1.1.2.2 bouyer * by Andrew Doran. 9 1.1.2.2 bouyer * 10 1.1.2.2 bouyer * Redistribution and use in source and binary forms, with or without 11 1.1.2.2 bouyer * modification, are permitted provided that the following conditions 12 1.1.2.2 bouyer * are met: 13 1.1.2.2 bouyer * 1. Redistributions of source code must retain the above copyright 14 1.1.2.2 bouyer * notice, this list of conditions and the following disclaimer. 15 1.1.2.2 bouyer * 2. Redistributions in binary form must reproduce the above copyright 16 1.1.2.2 bouyer * notice, this list of conditions and the following disclaimer in the 17 1.1.2.2 bouyer * documentation and/or other materials provided with the distribution. 18 1.1.2.2 bouyer * 3. All advertising materials mentioning features or use of this software 19 1.1.2.2 bouyer * must display the following acknowledgement: 20 1.1.2.2 bouyer * This product includes software developed by the NetBSD 21 1.1.2.2 bouyer * Foundation, Inc. and its contributors. 22 1.1.2.2 bouyer * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.1.2.2 bouyer * contributors may be used to endorse or promote products derived 24 1.1.2.2 bouyer * from this software without specific prior written permission. 25 1.1.2.2 bouyer * 26 1.1.2.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.1.2.2 bouyer * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.1.2.2 bouyer * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.1.2.2 bouyer * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.1.2.2 bouyer * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.1.2.2 bouyer * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.1.2.2 bouyer * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.1.2.2 bouyer * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.1.2.2 bouyer * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.1.2.2 bouyer * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.1.2.2 bouyer * POSSIBILITY OF SUCH DAMAGE. 37 1.1.2.2 bouyer */ 38 1.1.2.2 bouyer 39 1.1.2.2 bouyer /* 40 1.1.2.2 bouyer * 3ware "Escalade" RAID controller front-end for ld(4) driver. 41 1.1.2.2 bouyer */ 42 1.1.2.2 bouyer 43 1.1.2.2 bouyer #include "rnd.h" 44 1.1.2.2 bouyer #include "opt_twe.h" 45 1.1.2.2 bouyer 46 1.1.2.2 bouyer #include <sys/param.h> 47 1.1.2.2 bouyer #include <sys/systm.h> 48 1.1.2.2 bouyer #include <sys/kernel.h> 49 1.1.2.2 bouyer #include <sys/device.h> 50 1.1.2.2 bouyer #include <sys/buf.h> 51 1.1.2.2 bouyer #include <sys/endian.h> 52 1.1.2.2 bouyer #include <sys/dkio.h> 53 1.1.2.2 bouyer #include <sys/disk.h> 54 1.1.2.2 bouyer #if NRND > 0 55 1.1.2.2 bouyer #include <sys/rnd.h> 56 1.1.2.2 bouyer #endif 57 1.1.2.2 bouyer 58 1.1.2.2 bouyer #include <machine/bus.h> 59 1.1.2.2 bouyer 60 1.1.2.2 bouyer #include <uvm/uvm_extern.h> 61 1.1.2.2 bouyer 62 1.1.2.2 bouyer #include <dev/ldvar.h> 63 1.1.2.2 bouyer 64 1.1.2.2 bouyer #include <dev/pci/twereg.h> 65 1.1.2.2 bouyer #include <dev/pci/twevar.h> 66 1.1.2.2 bouyer 67 1.1.2.2 bouyer struct ld_twe_softc { 68 1.1.2.2 bouyer struct ld_softc sc_ld; 69 1.1.2.2 bouyer int sc_hwunit; 70 1.1.2.2 bouyer }; 71 1.1.2.2 bouyer 72 1.1.2.2 bouyer static void ld_twe_attach(struct device *, struct device *, void *); 73 1.1.2.2 bouyer static int ld_twe_dobio(struct ld_twe_softc *, int, void *, int, int, 74 1.1.2.2 bouyer int, struct twe_context *); 75 1.1.2.2 bouyer static int ld_twe_dump(struct ld_softc *, void *, int, int); 76 1.1.2.2 bouyer static void ld_twe_handler(struct twe_ccb *, int); 77 1.1.2.2 bouyer static int ld_twe_match(struct device *, struct cfdata *, void *); 78 1.1.2.2 bouyer static int ld_twe_start(struct ld_softc *, struct buf *); 79 1.1.2.2 bouyer 80 1.1.2.2 bouyer struct cfattach ld_twe_ca = { 81 1.1.2.2 bouyer sizeof(struct ld_twe_softc), ld_twe_match, ld_twe_attach 82 1.1.2.2 bouyer }; 83 1.1.2.2 bouyer 84 1.1.2.2 bouyer static int 85 1.1.2.2 bouyer ld_twe_match(struct device *parent, struct cfdata *match, void *aux) 86 1.1.2.2 bouyer { 87 1.1.2.2 bouyer 88 1.1.2.2 bouyer return (1); 89 1.1.2.2 bouyer } 90 1.1.2.2 bouyer 91 1.1.2.2 bouyer static void 92 1.1.2.2 bouyer ld_twe_attach(struct device *parent, struct device *self, void *aux) 93 1.1.2.2 bouyer { 94 1.1.2.2 bouyer struct twe_attach_args *twea; 95 1.1.2.2 bouyer struct ld_twe_softc *sc; 96 1.1.2.2 bouyer struct ld_softc *ld; 97 1.1.2.2 bouyer struct twe_softc *twe; 98 1.1.2.2 bouyer 99 1.1.2.2 bouyer sc = (struct ld_twe_softc *)self; 100 1.1.2.2 bouyer ld = &sc->sc_ld; 101 1.1.2.2 bouyer twe = (struct twe_softc *)parent; 102 1.1.2.2 bouyer twea = aux; 103 1.1.2.2 bouyer 104 1.1.2.2 bouyer sc->sc_hwunit = twea->twea_unit; 105 1.1.2.2 bouyer ld->sc_flags = LDF_ENABLED; 106 1.1.2.2 bouyer ld->sc_maxxfer = TWE_MAX_XFER; 107 1.1.2.2 bouyer ld->sc_secperunit = twe->sc_dsize[twea->twea_unit]; 108 1.1.2.2 bouyer ld->sc_secsize = TWE_SECTOR_SIZE; 109 1.1.2.2 bouyer ld->sc_maxqueuecnt = 110 1.1.2.2 bouyer min((twe->sc_nccbs - 1) / twe->sc_nunits, TWE_MAX_PU_QUEUECNT); 111 1.1.2.2 bouyer ld->sc_start = ld_twe_start; 112 1.1.2.2 bouyer ld->sc_dump = ld_twe_dump; 113 1.1.2.2 bouyer 114 1.1.2.2 bouyer /* Build synthetic geometry as per controller internal rules. */ 115 1.1.2.2 bouyer if (ld->sc_secperunit > 0x200000) { 116 1.1.2.2 bouyer ld->sc_nheads = 255; 117 1.1.2.2 bouyer ld->sc_nsectors = 63; 118 1.1.2.2 bouyer } else { 119 1.1.2.2 bouyer ld->sc_nheads = 64; 120 1.1.2.2 bouyer ld->sc_nsectors = 32; 121 1.1.2.2 bouyer } 122 1.1.2.2 bouyer ld->sc_ncylinders = ld->sc_secperunit / 123 1.1.2.2 bouyer (ld->sc_nheads * ld->sc_nsectors); 124 1.1.2.2 bouyer 125 1.1.2.2 bouyer printf("\n"); 126 1.1.2.2 bouyer ldattach(ld); 127 1.1.2.2 bouyer } 128 1.1.2.2 bouyer 129 1.1.2.2 bouyer static int 130 1.1.2.2 bouyer ld_twe_dobio(struct ld_twe_softc *sc, int unit, void *data, int datasize, 131 1.1.2.2 bouyer int blkno, int dowrite, struct twe_context *tx) 132 1.1.2.2 bouyer { 133 1.1.2.2 bouyer struct twe_ccb *ccb; 134 1.1.2.2 bouyer struct twe_cmd *tc; 135 1.1.2.2 bouyer struct twe_softc *twe; 136 1.1.2.2 bouyer int s, rv, flags; 137 1.1.2.2 bouyer 138 1.1.2.2 bouyer twe = (struct twe_softc *)sc->sc_ld.sc_dv.dv_parent; 139 1.1.2.2 bouyer 140 1.1.2.2 bouyer flags = (dowrite ? TWE_CCB_DATA_OUT : TWE_CCB_DATA_IN); 141 1.1.2.2 bouyer if ((rv = twe_ccb_alloc(twe, &ccb, flags)) != 0) 142 1.1.2.2 bouyer return (rv); 143 1.1.2.2 bouyer 144 1.1.2.2 bouyer ccb->ccb_data = data; 145 1.1.2.2 bouyer ccb->ccb_datasize = datasize; 146 1.1.2.2 bouyer tc = ccb->ccb_cmd; 147 1.1.2.2 bouyer 148 1.1.2.2 bouyer /* Build the command. */ 149 1.1.2.2 bouyer tc->tc_size = 3; 150 1.1.2.2 bouyer tc->tc_unit = unit; 151 1.1.2.2 bouyer tc->tc_count = htole16(datasize / TWE_SECTOR_SIZE); 152 1.1.2.2 bouyer tc->tc_args.io.lba = htole32(blkno); 153 1.1.2.2 bouyer 154 1.1.2.2 bouyer if (dowrite) 155 1.1.2.2 bouyer tc->tc_opcode = TWE_OP_WRITE | (tc->tc_size << 5); 156 1.1.2.2 bouyer else 157 1.1.2.2 bouyer tc->tc_opcode = TWE_OP_READ | (tc->tc_size << 5); 158 1.1.2.2 bouyer 159 1.1.2.2 bouyer /* Map the data transfer. */ 160 1.1.2.2 bouyer if ((rv = twe_ccb_map(twe, ccb)) != 0) { 161 1.1.2.2 bouyer twe_ccb_free(twe, ccb); 162 1.1.2.2 bouyer return (rv); 163 1.1.2.2 bouyer } 164 1.1.2.2 bouyer 165 1.1.2.2 bouyer if (tx == NULL) { 166 1.1.2.2 bouyer /* 167 1.1.2.2 bouyer * Polled commands must not sit on the software queue. Wait 168 1.1.2.2 bouyer * up to 2 seconds for the command to complete. 169 1.1.2.2 bouyer */ 170 1.1.2.2 bouyer s = splbio(); 171 1.1.2.2 bouyer if ((rv = twe_ccb_submit(twe, ccb)) == 0) 172 1.1.2.2 bouyer rv = twe_ccb_poll(twe, ccb, 2000); 173 1.1.2.2 bouyer twe_ccb_unmap(twe, ccb); 174 1.1.2.2 bouyer twe_ccb_free(twe, ccb); 175 1.1.2.2 bouyer splx(s); 176 1.1.2.2 bouyer } else { 177 1.1.2.2 bouyer memcpy(&ccb->ccb_tx, tx, sizeof(struct twe_context)); 178 1.1.2.2 bouyer twe_ccb_enqueue(twe, ccb); 179 1.1.2.2 bouyer rv = 0; 180 1.1.2.2 bouyer } 181 1.1.2.2 bouyer 182 1.1.2.2 bouyer return (rv); 183 1.1.2.2 bouyer } 184 1.1.2.2 bouyer 185 1.1.2.2 bouyer static int 186 1.1.2.2 bouyer ld_twe_start(struct ld_softc *ld, struct buf *bp) 187 1.1.2.2 bouyer { 188 1.1.2.2 bouyer struct twe_context tx; 189 1.1.2.2 bouyer struct ld_twe_softc *sc; 190 1.1.2.2 bouyer struct twe_softc *twe; 191 1.1.2.2 bouyer 192 1.1.2.2 bouyer sc = (struct ld_twe_softc *)ld; 193 1.1.2.2 bouyer twe = (struct twe_softc *)ld->sc_dv.dv_parent; 194 1.1.2.2 bouyer 195 1.1.2.2 bouyer tx.tx_handler = ld_twe_handler; 196 1.1.2.2 bouyer tx.tx_context = bp; 197 1.1.2.2 bouyer tx.tx_dv = &ld->sc_dv; 198 1.1.2.2 bouyer 199 1.1.2.2 bouyer return (ld_twe_dobio(sc, sc->sc_hwunit, bp->b_data, bp->b_bcount, 200 1.1.2.2 bouyer bp->b_rawblkno, (bp->b_flags & B_READ) == 0, &tx)); 201 1.1.2.2 bouyer } 202 1.1.2.2 bouyer 203 1.1.2.2 bouyer static void 204 1.1.2.2 bouyer ld_twe_handler(struct twe_ccb *ccb, int error) 205 1.1.2.2 bouyer { 206 1.1.2.2 bouyer struct buf *bp; 207 1.1.2.2 bouyer struct twe_context *tx; 208 1.1.2.2 bouyer struct ld_twe_softc *sc; 209 1.1.2.2 bouyer struct twe_softc *twe; 210 1.1.2.2 bouyer 211 1.1.2.2 bouyer tx = &ccb->ccb_tx; 212 1.1.2.2 bouyer bp = tx->tx_context; 213 1.1.2.2 bouyer sc = (struct ld_twe_softc *)tx->tx_dv; 214 1.1.2.2 bouyer twe = (struct twe_softc *)sc->sc_ld.sc_dv.dv_parent; 215 1.1.2.2 bouyer 216 1.1.2.2 bouyer twe_ccb_unmap(twe, ccb); 217 1.1.2.2 bouyer twe_ccb_free(twe, ccb); 218 1.1.2.2 bouyer 219 1.1.2.2 bouyer if (error) { 220 1.1.2.2 bouyer bp->b_flags |= B_ERROR; 221 1.1.2.2 bouyer bp->b_error = error; 222 1.1.2.2 bouyer bp->b_resid = bp->b_bcount; 223 1.1.2.2 bouyer } else 224 1.1.2.2 bouyer bp->b_resid = 0; 225 1.1.2.2 bouyer 226 1.1.2.2 bouyer lddone(&sc->sc_ld, bp); 227 1.1.2.2 bouyer } 228 1.1.2.2 bouyer 229 1.1.2.2 bouyer static int 230 1.1.2.2 bouyer ld_twe_dump(struct ld_softc *ld, void *data, int blkno, int blkcnt) 231 1.1.2.2 bouyer { 232 1.1.2.2 bouyer struct ld_twe_softc *sc; 233 1.1.2.2 bouyer 234 1.1.2.2 bouyer sc = (struct ld_twe_softc *)ld; 235 1.1.2.2 bouyer 236 1.1.2.2 bouyer return (ld_twe_dobio(sc, sc->sc_hwunit, data, blkcnt * ld->sc_secsize, 237 1.1.2.2 bouyer blkno, 1, NULL)); 238 1.1.2.2 bouyer } 239
Indexes created Wed Oct 01 15:09:59 GMT 2025