1 /* $NetBSD: ld_icp.c,v 1.5 2002/10/02 16:33:33 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 1.5 2002/10/02 16:33:33 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 ic = icp_ccb_alloc(icp); 187 188 /* 189 * Map the data transfer. 190 */ 191 cc = &ic->ic_cmd.cmd_packet.cc; 192 ic->ic_sg = cc->cc_sg; 193 ic->ic_service = ICP_CACHESERVICE; 194 195 rv = icp_ccb_map(icp, ic, data, datasize, 196 dowrite ? IC_XFER_OUT : IC_XFER_IN); 197 if (rv != 0) { 198 icp_ccb_free(icp, ic); 199 return (rv); 200 } 201 202 /* 203 * Build the command. 204 */ 205 ic->ic_cmd.cmd_opcode = htole16((dowrite ? ICP_WRITE : ICP_READ)); 206 cc->cc_deviceno = htole16(sc->sc_hwunit); 207 cc->cc_blockno = htole32(blkno); 208 cc->cc_blockcnt = htole32(datasize / ICP_SECTOR_SIZE); 209 cc->cc_addr = ~0; /* scatter gather */ 210 cc->cc_nsgent = htole32(ic->ic_nsgent); 211 212 ic->ic_cmdlen = (u_long)ic->ic_sg - (u_long)&ic->ic_cmd + 213 ic->ic_nsgent * sizeof(*ic->ic_sg); 214 215 /* 216 * Fire it off to the controller. 217 */ 218 if (bp == NULL) { 219 s = splbio(); 220 rv = icp_ccb_poll(icp, ic, 10000); 221 icp_ccb_unmap(icp, ic); 222 icp_ccb_free(icp, ic); 223 splx(s); 224 } else { 225 ic->ic_intr = ld_icp_intr; 226 ic->ic_context = bp; 227 ic->ic_dv = &sc->sc_ld.sc_dv; 228 icp_ccb_enqueue(icp, ic); 229 } 230 231 return (rv); 232 } 233 234 int 235 ld_icp_start(struct ld_softc *ld, struct buf *bp) 236 { 237 238 return (ld_icp_dobio((struct ld_icp_softc *)ld, bp->b_data, 239 bp->b_bcount, bp->b_rawblkno, (bp->b_flags & B_READ) == 0, bp)); 240 } 241 242 int 243 ld_icp_dump(struct ld_softc *ld, void *data, int blkno, int blkcnt) 244 { 245 246 return (ld_icp_dobio((struct ld_icp_softc *)ld, data, 247 blkcnt * ld->sc_secsize, blkno, 1, NULL)); 248 } 249 250 int 251 ld_icp_flush(struct ld_softc *ld) 252 { 253 struct ld_icp_softc *sc; 254 struct icp_softc *icp; 255 struct icp_cachecmd *cc; 256 struct icp_ccb *ic; 257 int rv; 258 259 sc = (struct ld_icp_softc *)ld; 260 icp = (struct icp_softc *)ld->sc_dv.dv_parent; 261 262 ic = icp_ccb_alloc(icp); 263 ic->ic_cmd.cmd_opcode = htole16(ICP_FLUSH); 264 265 cc = &ic->ic_cmd.cmd_packet.cc; 266 cc->cc_deviceno = htole16(sc->sc_hwunit); 267 cc->cc_blockno = htole32(1); 268 cc->cc_blockcnt = 0; 269 cc->cc_addr = 0; 270 cc->cc_nsgent = 0; 271 272 ic->ic_cmdlen = (u_long)&cc->cc_sg - (u_long)&ic->ic_cmd; 273 ic->ic_service = ICP_CACHESERVICE; 274 275 rv = icp_ccb_wait(icp, ic, 30000); 276 icp_ccb_free(icp, ic); 277 278 return (rv); 279 } 280 281 void 282 ld_icp_intr(struct icp_ccb *ic) 283 { 284 struct buf *bp; 285 struct ld_icp_softc *sc; 286 struct icp_softc *icp; 287 288 bp = ic->ic_context; 289 sc = (struct ld_icp_softc *)ic->ic_dv; 290 icp = (struct icp_softc *)sc->sc_ld.sc_dv.dv_parent; 291 292 if (ic->ic_status != ICP_S_OK) { 293 printf("%s: request failed; status=0x%04x\n", 294 ic->ic_dv->dv_xname, ic->ic_status); 295 bp->b_flags |= B_ERROR; 296 bp->b_error = EIO; 297 bp->b_resid = bp->b_bcount; 298 } else 299 bp->b_resid = 0; 300 301 icp_ccb_unmap(icp, ic); 302 icp_ccb_free(icp, ic); 303 lddone(&sc->sc_ld, bp); 304 } 305