ld_icp.c revision 1.22
1 /* $NetBSD: ld_icp.c,v 1.22 2008/09/09 12:45:39 tron 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 1.22 2008/09/09 12:45:39 tron Exp $"); 38 39 #include "rnd.h" 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/kernel.h> 44 #include <sys/device.h> 45 #include <sys/buf.h> 46 #include <sys/bufq.h> 47 #include <sys/endian.h> 48 #include <sys/dkio.h> 49 #include <sys/disk.h> 50 #if NRND > 0 51 #include <sys/rnd.h> 52 #endif 53 54 #include <uvm/uvm_extern.h> 55 56 #include <sys/bus.h> 57 58 #include <dev/ldvar.h> 59 60 #include <dev/ic/icpreg.h> 61 #include <dev/ic/icpvar.h> 62 63 struct ld_icp_softc { 64 struct ld_softc sc_ld; 65 int sc_hwunit; 66 }; 67 68 void ld_icp_attach(device_t, device_t, void *); 69 int ld_icp_detach(device_t, int); 70 int ld_icp_dobio(struct ld_icp_softc *, void *, int, int, int, 71 struct buf *); 72 int ld_icp_dump(struct ld_softc *, void *, int, int); 73 int ld_icp_flush(struct ld_softc *, int); 74 void ld_icp_intr(struct icp_ccb *); 75 int ld_icp_match(device_t, cfdata_t, void *); 76 int ld_icp_start(struct ld_softc *, struct buf *); 77 78 void ld_icp_adjqparam(device_t, int); 79 80 CFATTACH_DECL_NEW(ld_icp, sizeof(struct ld_icp_softc), 81 ld_icp_match, ld_icp_attach, ld_icp_detach, NULL); 82 83 static const struct icp_servicecb ld_icp_servicecb = { 84 ld_icp_adjqparam, 85 }; 86 87 int 88 ld_icp_match(device_t parent, cfdata_t match, void *aux) 89 { 90 struct icp_attach_args *icpa; 91 92 icpa = aux; 93 94 return (icpa->icpa_unit < ICPA_UNIT_SCSI); 95 } 96 97 void 98 ld_icp_attach(device_t parent, device_t self, void *aux) 99 { 100 struct icp_attach_args *icpa = aux; 101 struct ld_icp_softc *sc = device_private(self); 102 struct ld_softc *ld = &sc->sc_ld; 103 struct icp_softc *icp = device_private(parent); 104 struct icp_cachedrv *cd = &icp->icp_cdr[icpa->icpa_unit]; 105 struct icp_cdevinfo *cdi; 106 const char *str; 107 int t; 108 109 ld->sc_dv = self; 110 111 icp_register_servicecb(icp, icpa->icpa_unit, &ld_icp_servicecb); 112 113 sc->sc_hwunit = icpa->icpa_unit; 114 ld->sc_maxxfer = ICP_MAX_XFER; 115 ld->sc_secsize = ICP_SECTOR_SIZE; 116 ld->sc_start = ld_icp_start; 117 ld->sc_dump = ld_icp_dump; 118 ld->sc_flush = ld_icp_flush; 119 ld->sc_secperunit = cd->cd_size; 120 ld->sc_flags = LDF_ENABLED; 121 ld->sc_maxqueuecnt = icp->icp_openings; 122 123 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_IOCTL, ICP_CACHE_DRV_INFO, 124 sc->sc_hwunit, sizeof(struct icp_cdevinfo))) { 125 aprint_error(": unable to retrieve device info\n"); 126 ld->sc_flags = LDF_ENABLED; 127 goto out; 128 } 129 cdi = (struct icp_cdevinfo *)icp->icp_scr; 130 131 aprint_normal(": <%.8s>, ", cdi->ld_name); 132 t = le32toh(cdi->ld_dtype) >> 16; 133 134 /* 135 * Print device type. 136 */ 137 if (le32toh(cdi->ld_dcnt) > 1 || le32toh(cdi->ld_slave) != -1) 138 str = "RAID-1"; 139 else if (t == 0) 140 str = "JBOD"; 141 else if (t == 1) 142 str = "RAID-0"; 143 else if (t == 2) 144 str = "Chain"; 145 else 146 str = "unknown type"; 147 148 aprint_normal("type: %s, ", str); 149 150 /* 151 * Print device status. 152 */ 153 if (t > 2) 154 str = "missing"; 155 else if ((cdi->ld_error & 1) != 0) { 156 str = "fault"; 157 ld->sc_flags = LDF_ENABLED; 158 } else if ((cdi->ld_error & 2) != 0) 159 str = "invalid"; 160 else { 161 str = "optimal"; 162 ld->sc_flags = LDF_ENABLED; 163 } 164 165 aprint_normal("status: %s\n", str); 166 167 out: 168 ldattach(ld); 169 } 170 171 int 172 ld_icp_detach(device_t dv, int flags) 173 { 174 int rv; 175 176 if ((rv = ldbegindetach((struct ld_softc *)dv, flags)) != 0) 177 return (rv); 178 ldenddetach((struct ld_softc *) dv); 179 180 return (0); 181 } 182 183 int 184 ld_icp_dobio(struct ld_icp_softc *sc, void *data, int datasize, int blkno, 185 int dowrite, struct buf *bp) 186 { 187 struct icp_cachecmd *cc; 188 struct icp_ccb *ic; 189 struct icp_softc *icp; 190 int s, rv; 191 192 icp = device_private(device_parent(sc->sc_ld.sc_dv)); 193 194 /* 195 * Allocate a command control block. 196 */ 197 if (__predict_false((ic = icp_ccb_alloc(icp)) == NULL)) 198 return (EAGAIN); 199 200 /* 201 * Map the data transfer. 202 */ 203 cc = &ic->ic_cmd.cmd_packet.cc; 204 ic->ic_sg = cc->cc_sg; 205 ic->ic_service = ICP_CACHESERVICE; 206 207 rv = icp_ccb_map(icp, ic, data, datasize, 208 dowrite ? IC_XFER_OUT : IC_XFER_IN); 209 if (rv != 0) { 210 icp_ccb_free(icp, ic); 211 return (rv); 212 } 213 214 /* 215 * Build the command. 216 */ 217 ic->ic_cmd.cmd_opcode = htole16((dowrite ? ICP_WRITE : ICP_READ)); 218 cc->cc_deviceno = htole16(sc->sc_hwunit); 219 cc->cc_blockno = htole32(blkno); 220 cc->cc_blockcnt = htole32(datasize / ICP_SECTOR_SIZE); 221 cc->cc_addr = ~0; /* scatter gather */ 222 cc->cc_nsgent = htole32(ic->ic_nsgent); 223 224 ic->ic_cmdlen = (u_long)ic->ic_sg - (u_long)&ic->ic_cmd + 225 ic->ic_nsgent * sizeof(*ic->ic_sg); 226 227 /* 228 * Fire it off to the controller. 229 */ 230 if (bp == NULL) { 231 s = splbio(); 232 rv = icp_ccb_poll(icp, ic, 10000); 233 icp_ccb_unmap(icp, ic); 234 icp_ccb_free(icp, ic); 235 splx(s); 236 } else { 237 ic->ic_intr = ld_icp_intr; 238 ic->ic_context = bp; 239 ic->ic_dv = sc->sc_ld.sc_dv; 240 icp_ccb_enqueue(icp, ic); 241 } 242 243 return (rv); 244 } 245 246 int 247 ld_icp_start(struct ld_softc *ld, struct buf *bp) 248 { 249 250 return (ld_icp_dobio((struct ld_icp_softc *)ld, bp->b_data, 251 bp->b_bcount, bp->b_rawblkno, (bp->b_flags & B_READ) == 0, bp)); 252 } 253 254 int 255 ld_icp_dump(struct ld_softc *ld, void *data, int blkno, int blkcnt) 256 { 257 258 return (ld_icp_dobio((struct ld_icp_softc *)ld, data, 259 blkcnt * ld->sc_secsize, blkno, 1, NULL)); 260 } 261 262 int 263 ld_icp_flush(struct ld_softc *ld, int flags) 264 { 265 struct ld_icp_softc *sc; 266 struct icp_softc *icp; 267 struct icp_cachecmd *cc; 268 struct icp_ccb *ic; 269 int rv; 270 271 sc = (struct ld_icp_softc *)ld; 272 icp = device_private(device_parent(ld->sc_dv)); 273 274 ic = icp_ccb_alloc_wait(icp); 275 ic->ic_cmd.cmd_opcode = htole16(ICP_FLUSH); 276 277 cc = &ic->ic_cmd.cmd_packet.cc; 278 cc->cc_deviceno = htole16(sc->sc_hwunit); 279 cc->cc_blockno = htole32(1); 280 cc->cc_blockcnt = 0; 281 cc->cc_addr = 0; 282 cc->cc_nsgent = 0; 283 284 ic->ic_cmdlen = (u_long)&cc->cc_sg - (u_long)&ic->ic_cmd; 285 ic->ic_service = ICP_CACHESERVICE; 286 287 rv = icp_ccb_wait(icp, ic, 30000); 288 icp_ccb_free(icp, ic); 289 290 return (rv); 291 } 292 293 void 294 ld_icp_intr(struct icp_ccb *ic) 295 { 296 struct buf *bp; 297 struct ld_icp_softc *sc; 298 struct icp_softc *icp; 299 300 bp = ic->ic_context; 301 sc = (struct ld_icp_softc *)ic->ic_dv; 302 icp = device_private(device_parent(sc->sc_ld.sc_dv)); 303 304 if (ic->ic_status != ICP_S_OK) { 305 aprint_error_dev(ic->ic_dv, "request failed; status=0x%04x\n", 306 ic->ic_status); 307 bp->b_error = EIO; 308 bp->b_resid = bp->b_bcount; 309 310 icp->icp_evt.size = sizeof(icp->icp_evt.eu.sync); 311 icp->icp_evt.eu.sync.ionode = device_unit(&icp->icp_dv); 312 icp->icp_evt.eu.sync.service = icp->icp_service; 313 icp->icp_evt.eu.sync.status = icp->icp_status; 314 icp->icp_evt.eu.sync.info = icp->icp_info; 315 icp->icp_evt.eu.sync.hostdrive = sc->sc_hwunit; 316 if (icp->icp_status >= 0x8000) 317 icp_store_event(icp, GDT_ES_SYNC, 0, &icp->icp_evt); 318 else 319 icp_store_event(icp, GDT_ES_SYNC, icp->icp_service, 320 &icp->icp_evt); 321 } else 322 bp->b_resid = 0; 323 324 icp_ccb_unmap(icp, ic); 325 icp_ccb_free(icp, ic); 326 lddone(&sc->sc_ld, bp); 327 } 328 329 void 330 ld_icp_adjqparam(device_t dv, int openings) 331 { 332 333 ldadjqparam((struct ld_softc *) dv, openings); 334 } 335
Indexes created Fri Sep 26 20:09:58 GMT 2025