ld_icp.c revision 1.6
1 /* $NetBSD: ld_icp.c,v 1.6 2003/05/13 15:42:34 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Andrew Doran. 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * ICP-Vortex "GDT" front-end for ld(4) driver. 41 */ 42 43 #include <sys/cdefs.h> 44 __KERNEL_RCSID(0, "$NetBSD: ld_icp.c,v 1.6 2003/05/13 15:42:34 thorpej Exp $"); 45 46 #include "rnd.h" 47 48 #include <sys/param.h> 49 #include <sys/systm.h> 50 #include <sys/kernel.h> 51 #include <sys/device.h> 52 #include <sys/buf.h> 53 #include <sys/endian.h> 54 #include <sys/dkio.h> 55 #include <sys/disk.h> 56 #if NRND > 0 57 #include <sys/rnd.h> 58 #endif 59 60 #include <uvm/uvm_extern.h> 61 62 #include <machine/bus.h> 63 64 #include <dev/ldvar.h> 65 66 #include <dev/ic/icpreg.h> 67 #include <dev/ic/icpvar.h> 68 69 struct ld_icp_softc { 70 struct ld_softc sc_ld; 71 int sc_hwunit; 72 }; 73 74 void ld_icp_attach(struct device *, struct device *, void *); 75 int ld_icp_dobio(struct ld_icp_softc *, void *, int, int, int, 76 struct buf *); 77 int ld_icp_dump(struct ld_softc *, void *, int, int); 78 int ld_icp_flush(struct ld_softc *); 79 void ld_icp_intr(struct icp_ccb *); 80 int ld_icp_match(struct device *, struct cfdata *, void *); 81 int ld_icp_start(struct ld_softc *, struct buf *); 82 83 CFATTACH_DECL(ld_icp, sizeof(struct ld_icp_softc), 84 ld_icp_match, ld_icp_attach, NULL, NULL); 85 86 int 87 ld_icp_match(struct device *parent, struct cfdata *match, void *aux) 88 { 89 struct icp_attach_args *icpa; 90 91 icpa = aux; 92 93 return (icpa->icpa_unit < ICPA_UNIT_SCSI); 94 } 95 96 void 97 ld_icp_attach(struct device *parent, struct device *self, void *aux) 98 { 99 struct icp_attach_args *icpa; 100 struct ld_icp_softc *sc; 101 struct ld_softc *ld; 102 struct icp_softc *icp; 103 struct icp_cachedrv *cd; 104 struct icp_cdevinfo *cdi; 105 const char *str; 106 int t; 107 108 sc = (struct ld_icp_softc *)self; 109 ld = &sc->sc_ld; 110 icp = (struct icp_softc *)parent; 111 icpa = aux; 112 cd = &icp->icp_cdr[icpa->icpa_unit]; 113 114 sc->sc_hwunit = icpa->icpa_unit; 115 ld->sc_maxxfer = ICP_MAX_XFER; 116 ld->sc_secsize = ICP_SECTOR_SIZE; 117 ld->sc_start = ld_icp_start; 118 ld->sc_dump = ld_icp_dump; 119 ld->sc_flush = ld_icp_flush; 120 ld->sc_secperunit = cd->cd_size; 121 ld->sc_flags = LDF_ENABLED; 122 ld->sc_maxqueuecnt = icp->icp_openings; 123 124 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_IOCTL, ICP_CACHE_DRV_INFO, 125 sc->sc_hwunit, sizeof(struct icp_cdevinfo))) { 126 printf(": unable to retrieve device info\n"); 127 ld->sc_flags = LDF_ENABLED; 128 goto out; 129 } 130 cdi = (struct icp_cdevinfo *)icp->icp_scr; 131 132 printf(": <%.8s>, ", cdi->ld_name); 133 t = le32toh(cdi->ld_dtype) >> 16; 134 135 /* 136 * Print device type. 137 */ 138 if (le32toh(cdi->ld_dcnt) > 1 || le32toh(cdi->ld_slave) != -1) 139 str = "RAID-1"; 140 else if (t == 0) 141 str = "JBOD"; 142 else if (t == 1) 143 str = "RAID-0"; 144 else if (t == 2) 145 str = "Chain"; 146 else 147 str = "unknown type"; 148 149 printf("type: %s, ", str); 150 151 /* 152 * Print device status. 153 */ 154 if (t > 2) 155 str = "missing"; 156 else if ((cdi->ld_error & 1) != 0) { 157 str = "fault"; 158 ld->sc_flags = LDF_ENABLED; 159 } else if ((cdi->ld_error & 2) != 0) 160 str = "invalid"; 161 else { 162 str = "optimal"; 163 ld->sc_flags = LDF_ENABLED; 164 } 165 166 printf("status: %s\n", str); 167 168 out: 169 ldattach(ld); 170 } 171 172 int 173 ld_icp_dobio(struct ld_icp_softc *sc, void *data, int datasize, int blkno, 174 int dowrite, struct buf *bp) 175 { 176 struct icp_cachecmd *cc; 177 struct icp_ccb *ic; 178 struct icp_softc *icp; 179 int s, rv; 180 181 icp = (struct icp_softc *)sc->sc_ld.sc_dv.dv_parent; 182 183 /* 184 * Allocate a command control block. 185 */ 186 if (__predict_false((ic = icp_ccb_alloc(icp)) == NULL)) { 187 /* 188 * XXX Redo the way buffer queueing is done in 189 * XXX the ld driver. 190 */ 191 return (EAGAIN); 192 } 193 194 /* 195 * Map the data transfer. 196 */ 197 cc = &ic->ic_cmd.cmd_packet.cc; 198 ic->ic_sg = cc->cc_sg; 199 ic->ic_service = ICP_CACHESERVICE; 200 201 rv = icp_ccb_map(icp, ic, data, datasize, 202 dowrite ? IC_XFER_OUT : IC_XFER_IN); 203 if (rv != 0) { 204 icp_ccb_free(icp, ic); 205 return (rv); 206 } 207 208 /* 209 * Build the command. 210 */ 211 ic->ic_cmd.cmd_opcode = htole16((dowrite ? ICP_WRITE : ICP_READ)); 212 cc->cc_deviceno = htole16(sc->sc_hwunit); 213 cc->cc_blockno = htole32(blkno); 214 cc->cc_blockcnt = htole32(datasize / ICP_SECTOR_SIZE); 215 cc->cc_addr = ~0; /* scatter gather */ 216 cc->cc_nsgent = htole32(ic->ic_nsgent); 217 218 ic->ic_cmdlen = (u_long)ic->ic_sg - (u_long)&ic->ic_cmd + 219 ic->ic_nsgent * sizeof(*ic->ic_sg); 220 221 /* 222 * Fire it off to the controller. 223 */ 224 if (bp == NULL) { 225 s = splbio(); 226 rv = icp_ccb_poll(icp, ic, 10000); 227 icp_ccb_unmap(icp, ic); 228 icp_ccb_free(icp, ic); 229 splx(s); 230 } else { 231 ic->ic_intr = ld_icp_intr; 232 ic->ic_context = bp; 233 ic->ic_dv = &sc->sc_ld.sc_dv; 234 icp_ccb_enqueue(icp, ic); 235 } 236 237 return (rv); 238 } 239 240 int 241 ld_icp_start(struct ld_softc *ld, struct buf *bp) 242 { 243 244 return (ld_icp_dobio((struct ld_icp_softc *)ld, bp->b_data, 245 bp->b_bcount, bp->b_rawblkno, (bp->b_flags & B_READ) == 0, bp)); 246 } 247 248 int 249 ld_icp_dump(struct ld_softc *ld, void *data, int blkno, int blkcnt) 250 { 251 252 return (ld_icp_dobio((struct ld_icp_softc *)ld, data, 253 blkcnt * ld->sc_secsize, blkno, 1, NULL)); 254 } 255 256 int 257 ld_icp_flush(struct ld_softc *ld) 258 { 259 struct ld_icp_softc *sc; 260 struct icp_softc *icp; 261 struct icp_cachecmd *cc; 262 struct icp_ccb *ic; 263 int rv; 264 265 sc = (struct ld_icp_softc *)ld; 266 icp = (struct icp_softc *)ld->sc_dv.dv_parent; 267 268 ic = icp_ccb_alloc_wait(icp); 269 ic->ic_cmd.cmd_opcode = htole16(ICP_FLUSH); 270 271 cc = &ic->ic_cmd.cmd_packet.cc; 272 cc->cc_deviceno = htole16(sc->sc_hwunit); 273 cc->cc_blockno = htole32(1); 274 cc->cc_blockcnt = 0; 275 cc->cc_addr = 0; 276 cc->cc_nsgent = 0; 277 278 ic->ic_cmdlen = (u_long)&cc->cc_sg - (u_long)&ic->ic_cmd; 279 ic->ic_service = ICP_CACHESERVICE; 280 281 rv = icp_ccb_wait(icp, ic, 30000); 282 icp_ccb_free(icp, ic); 283 284 return (rv); 285 } 286 287 void 288 ld_icp_intr(struct icp_ccb *ic) 289 { 290 struct buf *bp; 291 struct ld_icp_softc *sc; 292 struct icp_softc *icp; 293 294 bp = ic->ic_context; 295 sc = (struct ld_icp_softc *)ic->ic_dv; 296 icp = (struct icp_softc *)sc->sc_ld.sc_dv.dv_parent; 297 298 if (ic->ic_status != ICP_S_OK) { 299 printf("%s: request failed; status=0x%04x\n", 300 ic->ic_dv->dv_xname, ic->ic_status); 301 bp->b_flags |= B_ERROR; 302 bp->b_error = EIO; 303 bp->b_resid = bp->b_bcount; 304 305 icp->icp_evt.size = sizeof(icp->icp_evt.eu.sync); 306 icp->icp_evt.eu.sync.ionode = icp->icp_dv.dv_unit; 307 icp->icp_evt.eu.sync.service = icp->icp_service; 308 icp->icp_evt.eu.sync.status = icp->icp_status; 309 icp->icp_evt.eu.sync.info = icp->icp_info; 310 icp->icp_evt.eu.sync.hostdrive = sc->sc_hwunit; 311 if (icp->icp_status >= 0x8000) 312 icp_store_event(icp, GDT_ES_SYNC, 0, &icp->icp_evt); 313 else 314 icp_store_event(icp, GDT_ES_SYNC, icp->icp_service, 315 &icp->icp_evt); 316 } else 317 bp->b_resid = 0; 318 319 icp_ccb_unmap(icp, ic); 320 icp_ccb_free(icp, ic); 321 lddone(&sc->sc_ld, bp); 322 } 323
Indexes created Wed Sep 24 15:09:51 GMT 2025