ld_icp.c revision 1.26
1 /* $NetBSD: ld_icp.c,v 1.26 2012/10/27 17:18:21 chs 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * ICP-Vortex "GDT" front-end for ld(4) driver. 34 */ 35 36 #include <sys/cdefs.h> 37 __KERNEL_RCSID(0, "$NetBSD: ld_icp.c,v 1.26 2012/10/27 17:18:21 chs Exp $"); 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/kernel.h> 42 #include <sys/device.h> 43 #include <sys/buf.h> 44 #include <sys/bufq.h> 45 #include <sys/endian.h> 46 #include <sys/dkio.h> 47 #include <sys/disk.h> 48 #include <sys/rnd.h> 49 50 #include <sys/bus.h> 51 52 #include <dev/ldvar.h> 53 54 #include <dev/ic/icpreg.h> 55 #include <dev/ic/icpvar.h> 56 57 struct ld_icp_softc { 58 struct ld_softc sc_ld; 59 int sc_hwunit; 60 }; 61 62 void ld_icp_attach(device_t, device_t, void *); 63 int ld_icp_detach(device_t, int); 64 int ld_icp_dobio(struct ld_icp_softc *, void *, int, int, int, 65 struct buf *); 66 int ld_icp_dump(struct ld_softc *, void *, int, int); 67 int ld_icp_flush(struct ld_softc *, int); 68 void ld_icp_intr(struct icp_ccb *); 69 int ld_icp_match(device_t, cfdata_t, void *); 70 int ld_icp_start(struct ld_softc *, struct buf *); 71 72 void ld_icp_adjqparam(device_t, int); 73 74 CFATTACH_DECL_NEW(ld_icp, sizeof(struct ld_icp_softc), 75 ld_icp_match, ld_icp_attach, ld_icp_detach, NULL); 76 77 static const struct icp_servicecb ld_icp_servicecb = { 78 ld_icp_adjqparam, 79 }; 80 81 int 82 ld_icp_match(device_t parent, cfdata_t match, void *aux) 83 { 84 struct icp_attach_args *icpa; 85 86 icpa = aux; 87 88 return (icpa->icpa_unit < ICPA_UNIT_SCSI); 89 } 90 91 void 92 ld_icp_attach(device_t parent, device_t self, void *aux) 93 { 94 struct icp_attach_args *icpa = aux; 95 struct ld_icp_softc *sc = device_private(self); 96 struct ld_softc *ld = &sc->sc_ld; 97 struct icp_softc *icp = device_private(parent); 98 struct icp_cachedrv *cd = &icp->icp_cdr[icpa->icpa_unit]; 99 struct icp_cdevinfo *cdi; 100 const char *str; 101 int t; 102 103 ld->sc_dv = self; 104 105 icp_register_servicecb(icp, icpa->icpa_unit, &ld_icp_servicecb); 106 107 sc->sc_hwunit = icpa->icpa_unit; 108 ld->sc_maxxfer = ICP_MAX_XFER; 109 ld->sc_secsize = ICP_SECTOR_SIZE; 110 ld->sc_start = ld_icp_start; 111 ld->sc_dump = ld_icp_dump; 112 ld->sc_flush = ld_icp_flush; 113 ld->sc_secperunit = cd->cd_size; 114 ld->sc_flags = LDF_ENABLED; 115 ld->sc_maxqueuecnt = icp->icp_openings; 116 117 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_IOCTL, ICP_CACHE_DRV_INFO, 118 sc->sc_hwunit, sizeof(struct icp_cdevinfo))) { 119 aprint_error(": unable to retrieve device info\n"); 120 ld->sc_flags = LDF_ENABLED; 121 goto out; 122 } 123 cdi = (struct icp_cdevinfo *)icp->icp_scr; 124 125 aprint_normal(": <%.8s>, ", cdi->ld_name); 126 t = le32toh(cdi->ld_dtype) >> 16; 127 128 /* 129 * Print device type. 130 */ 131 if (le32toh(cdi->ld_dcnt) > 1 || le32toh(cdi->ld_slave) != -1) 132 str = "RAID-1"; 133 else if (t == 0) 134 str = "JBOD"; 135 else if (t == 1) 136 str = "RAID-0"; 137 else if (t == 2) 138 str = "Chain"; 139 else 140 str = "unknown type"; 141 142 aprint_normal("type: %s, ", str); 143 144 /* 145 * Print device status. 146 */ 147 if (t > 2) 148 str = "missing"; 149 else if ((cdi->ld_error & 1) != 0) { 150 str = "fault"; 151 ld->sc_flags = LDF_ENABLED; 152 } else if ((cdi->ld_error & 2) != 0) 153 str = "invalid"; 154 else { 155 str = "optimal"; 156 ld->sc_flags = LDF_ENABLED; 157 } 158 159 aprint_normal("status: %s\n", str); 160 161 out: 162 ldattach(ld); 163 } 164 165 int 166 ld_icp_detach(device_t dv, int flags) 167 { 168 int rv; 169 170 if ((rv = ldbegindetach((struct ld_softc *)dv, flags)) != 0) 171 return (rv); 172 ldenddetach((struct ld_softc *) dv); 173 174 return (0); 175 } 176 177 int 178 ld_icp_dobio(struct ld_icp_softc *sc, void *data, int datasize, int blkno, 179 int dowrite, struct buf *bp) 180 { 181 struct icp_cachecmd *cc; 182 struct icp_ccb *ic; 183 struct icp_softc *icp; 184 int s, rv; 185 186 icp = device_private(device_parent(sc->sc_ld.sc_dv)); 187 188 /* 189 * Allocate a command control block. 190 */ 191 if (__predict_false((ic = icp_ccb_alloc(icp)) == NULL)) 192 return (EAGAIN); 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, int flags) 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 = device_private(device_parent(ld->sc_dv)); 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 = device_private(ic->ic_dv); 296 icp = device_private(device_parent(sc->sc_ld.sc_dv)); 297 298 if (ic->ic_status != ICP_S_OK) { 299 aprint_error_dev(ic->ic_dv, "request failed; status=0x%04x\n", 300 ic->ic_status); 301 bp->b_error = EIO; 302 bp->b_resid = bp->b_bcount; 303 304 icp->icp_evt.size = sizeof(icp->icp_evt.eu.sync); 305 icp->icp_evt.eu.sync.ionode = device_unit(icp->icp_dv); 306 icp->icp_evt.eu.sync.service = icp->icp_service; 307 icp->icp_evt.eu.sync.status = icp->icp_status; 308 icp->icp_evt.eu.sync.info = icp->icp_info; 309 icp->icp_evt.eu.sync.hostdrive = sc->sc_hwunit; 310 if (icp->icp_status >= 0x8000) 311 icp_store_event(icp, GDT_ES_SYNC, 0, &icp->icp_evt); 312 else 313 icp_store_event(icp, GDT_ES_SYNC, icp->icp_service, 314 &icp->icp_evt); 315 } else 316 bp->b_resid = 0; 317 318 icp_ccb_unmap(icp, ic); 319 icp_ccb_free(icp, ic); 320 lddone(&sc->sc_ld, bp); 321 } 322 323 void 324 ld_icp_adjqparam(device_t dv, int openings) 325 { 326 327 ldadjqparam((struct ld_softc *) dv, openings); 328 } 329
Indexes created Thu Sep 25 02:09:54 GMT 2025