ld_twa.c revision 1.2.6.2
1 1.2.6.2 chap /* $wasabi: ld_twa.c,v 1.9 2006/02/14 18:44:37 jordanr Exp $ */ 2 1.2.6.2 chap /* $NetBSD: ld_twa.c,v 1.2.6.2 2006/06/19 04:01:36 chap Exp $ */ 3 1.2.6.2 chap /*- 4 1.2.6.2 chap * Copyright (c) 2004 The NetBSD Foundation, Inc. 5 1.2.6.2 chap * All rights reserved. 6 1.2.6.2 chap * 7 1.2.6.2 chap * This code is derived from software contributed to The NetBSD Foundation 8 1.2.6.2 chap * by Jordan Rhody of Wasabi Systems, Inc. 9 1.2.6.2 chap * 10 1.2.6.2 chap * Redistribution and use in source and binary forms, with or without 11 1.2.6.2 chap * modification, are permitted provided that the following conditions 12 1.2.6.2 chap * are met: 13 1.2.6.2 chap * 1. Redistributions of source code must retain the above copyright 14 1.2.6.2 chap * notice, this list of conditions and the following disclaimer. 15 1.2.6.2 chap * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.6.2 chap * notice, this list of conditions and the following disclaimer in the 17 1.2.6.2 chap * documentation and/or other materials provided with the distribution. 18 1.2.6.2 chap * 3. All advertising materials mentioning features or use of this software 19 1.2.6.2 chap * must display the following acknowledgement: 20 1.2.6.2 chap * This product includes software developed by the NetBSD 21 1.2.6.2 chap * Foundation, Inc. and its contributors. 22 1.2.6.2 chap * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.2.6.2 chap * contributors may be used to endorse or promote products derived 24 1.2.6.2 chap * from this software without specific prior written permission. 25 1.2.6.2 chap * 26 1.2.6.2 chap * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.2.6.2 chap * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.2.6.2 chap * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.2.6.2 chap * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.2.6.2 chap * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.2.6.2 chap * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.2.6.2 chap * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.2.6.2 chap * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.2.6.2 chap * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.2.6.2 chap * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.2.6.2 chap * POSSIBILITY OF SUCH DAMAGE. 37 1.2.6.2 chap */ 38 1.2.6.2 chap 39 1.2.6.2 chap /* 40 1.2.6.2 chap * 3ware "Apache" RAID controller front-end for ld(4) driver. 41 1.2.6.2 chap */ 42 1.2.6.2 chap 43 1.2.6.2 chap #include <sys/cdefs.h> 44 1.2.6.2 chap __KERNEL_RCSID(0, "$NetBSD: ld_twa.c,v 1.2.6.2 2006/06/19 04:01:36 chap Exp $"); 45 1.2.6.2 chap 46 1.2.6.2 chap #include "rnd.h" 47 1.2.6.2 chap 48 1.2.6.2 chap #include <sys/param.h> 49 1.2.6.2 chap #include <sys/systm.h> 50 1.2.6.2 chap #include <sys/kernel.h> 51 1.2.6.2 chap #include <sys/device.h> 52 1.2.6.2 chap #include <sys/buf.h> 53 1.2.6.2 chap #include <sys/bufq.h> 54 1.2.6.2 chap #include <sys/endian.h> 55 1.2.6.2 chap #include <sys/dkio.h> 56 1.2.6.2 chap #include <sys/disk.h> 57 1.2.6.2 chap #if NRND > 0 58 1.2.6.2 chap #include <sys/rnd.h> 59 1.2.6.2 chap #endif 60 1.2.6.2 chap 61 1.2.6.2 chap #include <machine/bus.h> 62 1.2.6.2 chap 63 1.2.6.2 chap #include <uvm/uvm_extern.h> 64 1.2.6.2 chap 65 1.2.6.2 chap #include <dev/ldvar.h> 66 1.2.6.2 chap 67 1.2.6.2 chap #include <dev/scsipi/scsipi_all.h> 68 1.2.6.2 chap #include <dev/scsipi/scsipi_disk.h> 69 1.2.6.2 chap #include <dev/scsipi/scsipiconf.h> 70 1.2.6.2 chap #include <dev/scsipi/scsi_disk.h> 71 1.2.6.2 chap 72 1.2.6.2 chap 73 1.2.6.2 chap #include <dev/pci/pcireg.h> 74 1.2.6.2 chap #include <dev/pci/pcivar.h> 75 1.2.6.2 chap #include <dev/pci/twareg.h> 76 1.2.6.2 chap #include <dev/pci/twavar.h> 77 1.2.6.2 chap 78 1.2.6.2 chap struct ld_twa_softc { 79 1.2.6.2 chap struct ld_softc sc_ld; 80 1.2.6.2 chap int sc_hwunit; 81 1.2.6.2 chap }; 82 1.2.6.2 chap 83 1.2.6.2 chap static void ld_twa_attach(struct device *, struct device *, void *); 84 1.2.6.2 chap static int ld_twa_detach(struct device *, int); 85 1.2.6.2 chap static int ld_twa_dobio(struct ld_twa_softc *, void *, int, int, 86 1.2.6.2 chap struct buf *); 87 1.2.6.2 chap static int ld_twa_dump(struct ld_softc *, void *, int, int); 88 1.2.6.2 chap static int ld_twa_flush(struct ld_softc *); 89 1.2.6.2 chap static void ld_twa_handler(struct twa_request *); 90 1.2.6.2 chap static int ld_twa_match(struct device *, struct cfdata *, void *); 91 1.2.6.2 chap static int ld_twa_start(struct ld_softc *, struct buf *); 92 1.2.6.2 chap 93 1.2.6.2 chap static void ld_twa_adjqparam(struct device *, int); 94 1.2.6.2 chap 95 1.2.6.2 chap static int ld_twa_scsicmd(struct ld_twa_softc *, 96 1.2.6.2 chap struct twa_request *, struct buf *); 97 1.2.6.2 chap 98 1.2.6.2 chap CFATTACH_DECL(ld_twa, sizeof(struct ld_twa_softc), 99 1.2.6.2 chap ld_twa_match, ld_twa_attach, ld_twa_detach, NULL); 100 1.2.6.2 chap 101 1.2.6.2 chap static const struct twa_callbacks ld_twa_callbacks = { 102 1.2.6.2 chap ld_twa_adjqparam, 103 1.2.6.2 chap }; 104 1.2.6.2 chap 105 1.2.6.2 chap static int 106 1.2.6.2 chap ld_twa_match(struct device *parent, struct cfdata *match, void *aux) 107 1.2.6.2 chap { 108 1.2.6.2 chap 109 1.2.6.2 chap return (1); 110 1.2.6.2 chap } 111 1.2.6.2 chap 112 1.2.6.2 chap static void 113 1.2.6.2 chap ld_twa_attach(struct device *parent, struct device *self, void *aux) 114 1.2.6.2 chap { 115 1.2.6.2 chap struct twa_attach_args *twa_args; 116 1.2.6.2 chap struct ld_twa_softc *sc; 117 1.2.6.2 chap struct ld_softc *ld; 118 1.2.6.2 chap struct twa_softc *twa; 119 1.2.6.2 chap 120 1.2.6.2 chap sc = (struct ld_twa_softc *)self; 121 1.2.6.2 chap ld = &sc->sc_ld; 122 1.2.6.2 chap twa = (struct twa_softc *)parent; 123 1.2.6.2 chap twa_args = aux; 124 1.2.6.2 chap 125 1.2.6.2 chap twa_register_callbacks(twa, twa_args->twaa_unit, &ld_twa_callbacks); 126 1.2.6.2 chap 127 1.2.6.2 chap sc->sc_hwunit = twa_args->twaa_unit; 128 1.2.6.2 chap ld->sc_maxxfer = twa_get_maxxfer(twa_get_maxsegs()); 129 1.2.6.2 chap ld->sc_secperunit = twa->sc_units[sc->sc_hwunit].td_size; 130 1.2.6.2 chap ld->sc_flags = LDF_ENABLED; 131 1.2.6.2 chap ld->sc_secsize = TWA_SECTOR_SIZE; 132 1.2.6.2 chap ld->sc_maxqueuecnt = twa->sc_openings; 133 1.2.6.2 chap ld->sc_start = ld_twa_start; 134 1.2.6.2 chap ld->sc_dump = ld_twa_dump; 135 1.2.6.2 chap ld->sc_flush = ld_twa_flush; 136 1.2.6.2 chap ldattach(ld); 137 1.2.6.2 chap } 138 1.2.6.2 chap 139 1.2.6.2 chap static int 140 1.2.6.2 chap ld_twa_detach(struct device *self, int flags) 141 1.2.6.2 chap { 142 1.2.6.2 chap int error; 143 1.2.6.2 chap 144 1.2.6.2 chap if ((error = ldbegindetach((struct ld_softc *)self, flags)) != 0) 145 1.2.6.2 chap return (error); 146 1.2.6.2 chap ldenddetach((struct ld_softc *)self); 147 1.2.6.2 chap 148 1.2.6.2 chap return (0); 149 1.2.6.2 chap } 150 1.2.6.2 chap 151 1.2.6.2 chap static int 152 1.2.6.2 chap ld_twa_dobio(struct ld_twa_softc *sc, void *data, int datasize, int blkno, 153 1.2.6.2 chap struct buf *bp) 154 1.2.6.2 chap { 155 1.2.6.2 chap int rv; 156 1.2.6.2 chap struct twa_request *tr; 157 1.2.6.2 chap struct twa_softc *twa; 158 1.2.6.2 chap 159 1.2.6.2 chap twa = (struct twa_softc *)sc->sc_ld.sc_dv.dv_parent; 160 1.2.6.2 chap 161 1.2.6.2 chap if ((tr = twa_get_request(twa, 0)) == NULL) { 162 1.2.6.2 chap return (EAGAIN); 163 1.2.6.2 chap } 164 1.2.6.2 chap if (bp->b_flags & B_READ) { 165 1.2.6.2 chap tr->tr_flags = TWA_CMD_DATA_OUT; 166 1.2.6.2 chap } else { 167 1.2.6.2 chap tr->tr_flags = TWA_CMD_DATA_IN; 168 1.2.6.2 chap } 169 1.2.6.2 chap 170 1.2.6.2 chap tr->tr_data = data; 171 1.2.6.2 chap tr->tr_length = datasize; 172 1.2.6.2 chap tr->tr_cmd_pkt_type = 173 1.2.6.2 chap (TWA_CMD_PKT_TYPE_9K | TWA_CMD_PKT_TYPE_EXTERNAL); 174 1.2.6.2 chap 175 1.2.6.2 chap tr->tr_command->cmd_hdr.header_desc.size_header = 128; 176 1.2.6.2 chap 177 1.2.6.2 chap tr->tr_command->command.cmd_pkt_9k.command.opcode = 178 1.2.6.2 chap TWA_OP_EXECUTE_SCSI_COMMAND; 179 1.2.6.2 chap tr->tr_command->command.cmd_pkt_9k.unit = 180 1.2.6.2 chap sc->sc_hwunit; 181 1.2.6.2 chap tr->tr_command->command.cmd_pkt_9k.request_id = 182 1.2.6.2 chap tr->tr_request_id; 183 1.2.6.2 chap tr->tr_command->command.cmd_pkt_9k.status = 0; 184 1.2.6.2 chap tr->tr_command->command.cmd_pkt_9k.sgl_entries = 1; 185 1.2.6.2 chap tr->tr_command->command.cmd_pkt_9k.sgl_offset = 16; 186 1.2.6.2 chap 187 1.2.6.2 chap /* offset from end of hdr = max cdb len */ 188 1.2.6.2 chap ld_twa_scsicmd(sc, tr, bp); 189 1.2.6.2 chap 190 1.2.6.2 chap tr->tr_callback = ld_twa_handler; 191 1.2.6.2 chap tr->tr_ld_sc = sc; 192 1.2.6.2 chap 193 1.2.6.2 chap tr->bp = bp; 194 1.2.6.2 chap 195 1.2.6.2 chap rv = twa_map_request(tr); 196 1.2.6.2 chap 197 1.2.6.2 chap return (rv); 198 1.2.6.2 chap } 199 1.2.6.2 chap 200 1.2.6.2 chap static int 201 1.2.6.2 chap ld_twa_start(struct ld_softc *ld, struct buf *bp) 202 1.2.6.2 chap { 203 1.2.6.2 chap 204 1.2.6.2 chap return (ld_twa_dobio((struct ld_twa_softc *)ld, bp->b_data, 205 1.2.6.2 chap bp->b_bcount, bp->b_rawblkno, bp)); 206 1.2.6.2 chap } 207 1.2.6.2 chap 208 1.2.6.2 chap static void 209 1.2.6.2 chap ld_twa_handler(struct twa_request *tr) 210 1.2.6.2 chap { 211 1.2.6.2 chap uint8_t status; 212 1.2.6.2 chap struct buf *bp; 213 1.2.6.2 chap struct ld_twa_softc *sc; 214 1.2.6.2 chap struct twa_softc *twa; 215 1.2.6.2 chap 216 1.2.6.2 chap bp = tr->bp; 217 1.2.6.2 chap sc = (struct ld_twa_softc *)tr->tr_ld_sc; 218 1.2.6.2 chap twa = (struct twa_softc *)sc->sc_ld.sc_dv.dv_parent; 219 1.2.6.2 chap 220 1.2.6.2 chap status = tr->tr_command->command.cmd_pkt_9k.status; 221 1.2.6.2 chap 222 1.2.6.2 chap if (status != 0) { 223 1.2.6.2 chap bp->b_flags |= B_ERROR; 224 1.2.6.2 chap bp->b_error = EIO; 225 1.2.6.2 chap bp->b_resid = bp->b_bcount; 226 1.2.6.2 chap } else { 227 1.2.6.2 chap bp->b_resid = 0; 228 1.2.6.2 chap bp->b_error = 0; 229 1.2.6.2 chap } 230 1.2.6.2 chap twa_release_request(tr); 231 1.2.6.2 chap 232 1.2.6.2 chap lddone(&sc->sc_ld, bp); 233 1.2.6.2 chap } 234 1.2.6.2 chap 235 1.2.6.2 chap static int 236 1.2.6.2 chap ld_twa_dump(struct ld_softc *ld, void *data, int blkno, int blkcnt) 237 1.2.6.2 chap { 238 1.2.6.2 chap 239 1.2.6.2 chap return (ld_twa_dobio((struct ld_twa_softc *)ld, data, 240 1.2.6.2 chap blkcnt * ld->sc_secsize, blkno, NULL)); 241 1.2.6.2 chap } 242 1.2.6.2 chap 243 1.2.6.2 chap 244 1.2.6.2 chap static int 245 1.2.6.2 chap ld_twa_flush(struct ld_softc *ld) 246 1.2.6.2 chap { 247 1.2.6.2 chap int s, rv = 0; 248 1.2.6.2 chap struct twa_request *tr; 249 1.2.6.2 chap struct twa_softc *twa = (void *)ld->sc_dv.dv_parent; 250 1.2.6.2 chap struct ld_twa_softc *sc = (void *)ld; 251 1.2.6.2 chap struct twa_command_generic *generic_cmd; 252 1.2.6.2 chap 253 1.2.6.2 chap /* Get a request packet. */ 254 1.2.6.2 chap tr = twa_get_request_wait(twa, 0); 255 1.2.6.2 chap KASSERT(tr != NULL); 256 1.2.6.2 chap 257 1.2.6.2 chap tr->tr_cmd_pkt_type = 258 1.2.6.2 chap (TWA_CMD_PKT_TYPE_9K | TWA_CMD_PKT_TYPE_EXTERNAL); 259 1.2.6.2 chap 260 1.2.6.2 chap tr->tr_callback = twa_request_wait_handler; 261 1.2.6.2 chap tr->tr_ld_sc = sc; 262 1.2.6.2 chap 263 1.2.6.2 chap tr->tr_command->cmd_hdr.header_desc.size_header = 128; 264 1.2.6.2 chap 265 1.2.6.2 chap generic_cmd = &(tr->tr_command->command.cmd_pkt_7k.generic); 266 1.2.6.2 chap generic_cmd->opcode = TWA_OP_FLUSH; 267 1.2.6.2 chap generic_cmd->size = 2; 268 1.2.6.2 chap generic_cmd->unit = sc->sc_hwunit; 269 1.2.6.2 chap generic_cmd->request_id = tr->tr_request_id; 270 1.2.6.2 chap generic_cmd->sgl_offset = 0; 271 1.2.6.2 chap generic_cmd->host_id = 0; 272 1.2.6.2 chap generic_cmd->status = 0; 273 1.2.6.2 chap generic_cmd->flags = 0; 274 1.2.6.2 chap generic_cmd->count = 0; 275 1.2.6.2 chap rv = twa_map_request(tr); 276 1.2.6.2 chap s = splbio(); 277 1.2.6.2 chap while (tr->tr_status != TWA_CMD_COMPLETE) 278 1.2.6.2 chap if ((rv = tsleep(tr, PRIBIO, "twaflush", 60 * hz)) != 0) 279 1.2.6.2 chap break; 280 1.2.6.2 chap twa_release_request(tr); 281 1.2.6.2 chap splx(s); 282 1.2.6.2 chap 283 1.2.6.2 chap return (rv); 284 1.2.6.2 chap } 285 1.2.6.2 chap 286 1.2.6.2 chap static void 287 1.2.6.2 chap ld_twa_adjqparam(struct device *self, int openings) 288 1.2.6.2 chap { 289 1.2.6.2 chap 290 1.2.6.2 chap ldadjqparam((struct ld_softc *)self, openings); 291 1.2.6.2 chap } 292 1.2.6.2 chap 293 1.2.6.2 chap 294 1.2.6.2 chap static int 295 1.2.6.2 chap ld_twa_scsicmd(struct ld_twa_softc *sc, 296 1.2.6.2 chap struct twa_request *tr, struct buf *bp) 297 1.2.6.2 chap { 298 1.2.6.2 chap if (tr->tr_flags == TWA_CMD_DATA_IN) { 299 1.2.6.2 chap tr->tr_command->command.cmd_pkt_9k.cdb[0] = WRITE_16; 300 1.2.6.2 chap } else { 301 1.2.6.2 chap tr->tr_command->command.cmd_pkt_9k.cdb[0] = READ_16; 302 1.2.6.2 chap } 303 1.2.6.2 chap tr->tr_command->command.cmd_pkt_9k.cdb[1] = 304 1.2.6.2 chap (sc->sc_hwunit << 5); /* lun for CDB */ 305 1.2.6.2 chap 306 1.2.6.2 chap _lto8b(htole64(bp->b_rawblkno), 307 1.2.6.2 chap &tr->tr_command->command.cmd_pkt_9k.cdb[2]); 308 1.2.6.2 chap _lto4b(htole32((bp->b_bcount / TWA_SECTOR_SIZE)), 309 1.2.6.2 chap &tr->tr_command->command.cmd_pkt_9k.cdb[10]); 310 1.2.6.2 chap 311 1.2.6.2 chap tr->tr_command->command.cmd_pkt_9k.cdb[14] = 0; 312 1.2.6.2 chap tr->tr_command->command.cmd_pkt_9k.cdb[15] = 0; 313 1.2.6.2 chap 314 1.2.6.2 chap return (0); 315 1.2.6.2 chap } 316
Indexes created Wed Oct 15 16:09:53 GMT 2025