siop.c revision 1.37.2.11
1 1.37.2.11 bouyer /* $NetBSD: siop.c,v 1.37.2.11 2001/04/03 15:30:41 bouyer Exp $ */ 2 1.37.2.2 bouyer 3 1.37.2.2 bouyer /* 4 1.37.2.2 bouyer * Copyright (c) 2000 Manuel Bouyer. 5 1.37.2.2 bouyer * 6 1.37.2.2 bouyer * Redistribution and use in source and binary forms, with or without 7 1.37.2.2 bouyer * modification, are permitted provided that the following conditions 8 1.37.2.2 bouyer * are met: 9 1.37.2.2 bouyer * 1. Redistributions of source code must retain the above copyright 10 1.37.2.2 bouyer * notice, this list of conditions and the following disclaimer. 11 1.37.2.2 bouyer * 2. Redistributions in binary form must reproduce the above copyright 12 1.37.2.2 bouyer * notice, this list of conditions and the following disclaimer in the 13 1.37.2.2 bouyer * documentation and/or other materials provided with the distribution. 14 1.37.2.2 bouyer * 3. All advertising materials mentioning features or use of this software 15 1.37.2.2 bouyer * must display the following acknowledgement: 16 1.37.2.2 bouyer * This product includes software developed by Manuel Bouyer 17 1.37.2.2 bouyer * 4. The name of the author may not be used to endorse or promote products 18 1.37.2.2 bouyer * derived from this software without specific prior written permission. 19 1.37.2.2 bouyer * 20 1.37.2.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 1.37.2.2 bouyer * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 1.37.2.2 bouyer * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 1.37.2.2 bouyer * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 1.37.2.2 bouyer * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 1.37.2.2 bouyer * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 1.37.2.2 bouyer * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 1.37.2.2 bouyer * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 1.37.2.2 bouyer * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 1.37.2.2 bouyer * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 1.37.2.2 bouyer * 31 1.37.2.2 bouyer */ 32 1.37.2.2 bouyer 33 1.37.2.2 bouyer /* SYM53c7/8xx PCI-SCSI I/O Processors driver */ 34 1.37.2.2 bouyer 35 1.37.2.2 bouyer #include <sys/param.h> 36 1.37.2.2 bouyer #include <sys/systm.h> 37 1.37.2.2 bouyer #include <sys/device.h> 38 1.37.2.2 bouyer #include <sys/malloc.h> 39 1.37.2.2 bouyer #include <sys/buf.h> 40 1.37.2.2 bouyer #include <sys/kernel.h> 41 1.37.2.2 bouyer 42 1.37.2.3 bouyer #include <uvm/uvm_extern.h> 43 1.37.2.3 bouyer 44 1.37.2.2 bouyer #include <machine/endian.h> 45 1.37.2.2 bouyer #include <machine/bus.h> 46 1.37.2.2 bouyer 47 1.37.2.2 bouyer #include <dev/microcode/siop/siop.out> 48 1.37.2.2 bouyer 49 1.37.2.2 bouyer #include <dev/scsipi/scsi_all.h> 50 1.37.2.2 bouyer #include <dev/scsipi/scsi_message.h> 51 1.37.2.2 bouyer #include <dev/scsipi/scsipi_all.h> 52 1.37.2.2 bouyer 53 1.37.2.2 bouyer #include <dev/scsipi/scsiconf.h> 54 1.37.2.2 bouyer 55 1.37.2.2 bouyer #include <dev/ic/siopreg.h> 56 1.37.2.2 bouyer #include <dev/ic/siopvar.h> 57 1.37.2.2 bouyer #include <dev/ic/siopvar_common.h> 58 1.37.2.2 bouyer 59 1.37.2.2 bouyer #ifndef DEBUG 60 1.37.2.2 bouyer #undef DEBUG 61 1.37.2.2 bouyer #endif 62 1.37.2.2 bouyer #undef SIOP_DEBUG 63 1.37.2.2 bouyer #undef SIOP_DEBUG_DR 64 1.37.2.2 bouyer #undef SIOP_DEBUG_INTR 65 1.37.2.2 bouyer #undef SIOP_DEBUG_SCHED 66 1.37.2.2 bouyer #undef DUMP_SCRIPT 67 1.37.2.2 bouyer 68 1.37.2.2 bouyer #define SIOP_STATS 69 1.37.2.2 bouyer 70 1.37.2.2 bouyer #ifndef SIOP_DEFAULT_TARGET 71 1.37.2.2 bouyer #define SIOP_DEFAULT_TARGET 7 72 1.37.2.2 bouyer #endif 73 1.37.2.2 bouyer 74 1.37.2.2 bouyer /* number of cmd descriptors per block */ 75 1.37.2.3 bouyer #define SIOP_NCMDPB (PAGE_SIZE / sizeof(struct siop_xfer)) 76 1.37.2.2 bouyer 77 1.37.2.2 bouyer /* Number of scheduler slot (needs to match script) */ 78 1.37.2.2 bouyer #define SIOP_NSLOTS 40 79 1.37.2.2 bouyer 80 1.37.2.2 bouyer void siop_reset __P((struct siop_softc *)); 81 1.37.2.2 bouyer void siop_handle_reset __P((struct siop_softc *)); 82 1.37.2.2 bouyer int siop_handle_qtag_reject __P((struct siop_cmd *)); 83 1.37.2.2 bouyer void siop_scsicmd_end __P((struct siop_cmd *)); 84 1.37.2.7 bouyer void siop_unqueue __P((struct siop_softc *, int, int)); 85 1.37.2.11 bouyer static void siop_start __P((struct siop_softc *, struct siop_cmd *)); 86 1.37.2.2 bouyer void siop_timeout __P((void *)); 87 1.37.2.2 bouyer int siop_scsicmd __P((struct scsipi_xfer *)); 88 1.37.2.7 bouyer void siop_scsipi_request __P((struct scsipi_channel *, 89 1.37.2.4 bouyer scsipi_adapter_req_t, void *)); 90 1.37.2.2 bouyer void siop_dump_script __P((struct siop_softc *)); 91 1.37.2.2 bouyer int siop_morecbd __P((struct siop_softc *)); 92 1.37.2.2 bouyer struct siop_lunsw *siop_get_lunsw __P((struct siop_softc *)); 93 1.37.2.2 bouyer void siop_add_reselsw __P((struct siop_softc *, int)); 94 1.37.2.2 bouyer void siop_update_scntl3 __P((struct siop_softc *, struct siop_target *)); 95 1.37.2.2 bouyer 96 1.37.2.2 bouyer #ifdef SIOP_STATS 97 1.37.2.2 bouyer static int siop_stat_intr = 0; 98 1.37.2.2 bouyer static int siop_stat_intr_shortxfer = 0; 99 1.37.2.2 bouyer static int siop_stat_intr_sdp = 0; 100 1.37.2.2 bouyer static int siop_stat_intr_done = 0; 101 1.37.2.2 bouyer static int siop_stat_intr_xferdisc = 0; 102 1.37.2.2 bouyer static int siop_stat_intr_lunresel = 0; 103 1.37.2.2 bouyer static int siop_stat_intr_qfull = 0; 104 1.37.2.2 bouyer void siop_printstats __P((void)); 105 1.37.2.2 bouyer #define INCSTAT(x) x++ 106 1.37.2.2 bouyer #else 107 1.37.2.2 bouyer #define INCSTAT(x) 108 1.37.2.2 bouyer #endif 109 1.37.2.2 bouyer 110 1.37.2.2 bouyer static __inline__ void siop_script_sync __P((struct siop_softc *, int)); 111 1.37.2.2 bouyer static __inline__ void 112 1.37.2.2 bouyer siop_script_sync(sc, ops) 113 1.37.2.2 bouyer struct siop_softc *sc; 114 1.37.2.2 bouyer int ops; 115 1.37.2.2 bouyer { 116 1.37.2.2 bouyer if ((sc->features & SF_CHIP_RAM) == 0) 117 1.37.2.3 bouyer bus_dmamap_sync(sc->sc_dmat, sc->sc_scriptdma, 0, 118 1.37.2.3 bouyer PAGE_SIZE, ops); 119 1.37.2.2 bouyer } 120 1.37.2.2 bouyer 121 1.37.2.2 bouyer static __inline__ u_int32_t siop_script_read __P((struct siop_softc *, u_int)); 122 1.37.2.2 bouyer static __inline__ u_int32_t 123 1.37.2.2 bouyer siop_script_read(sc, offset) 124 1.37.2.2 bouyer struct siop_softc *sc; 125 1.37.2.2 bouyer u_int offset; 126 1.37.2.2 bouyer { 127 1.37.2.2 bouyer if (sc->features & SF_CHIP_RAM) { 128 1.37.2.2 bouyer return bus_space_read_4(sc->sc_ramt, sc->sc_ramh, offset * 4); 129 1.37.2.2 bouyer } else { 130 1.37.2.2 bouyer return le32toh(sc->sc_script[offset]); 131 1.37.2.2 bouyer } 132 1.37.2.2 bouyer } 133 1.37.2.2 bouyer 134 1.37.2.2 bouyer static __inline__ void siop_script_write __P((struct siop_softc *, u_int, 135 1.37.2.2 bouyer u_int32_t)); 136 1.37.2.2 bouyer static __inline__ void 137 1.37.2.2 bouyer siop_script_write(sc, offset, val) 138 1.37.2.2 bouyer struct siop_softc *sc; 139 1.37.2.2 bouyer u_int offset; 140 1.37.2.2 bouyer u_int32_t val; 141 1.37.2.2 bouyer { 142 1.37.2.2 bouyer if (sc->features & SF_CHIP_RAM) { 143 1.37.2.2 bouyer bus_space_write_4(sc->sc_ramt, sc->sc_ramh, offset * 4, val); 144 1.37.2.2 bouyer } else { 145 1.37.2.2 bouyer sc->sc_script[offset] = htole32(val); 146 1.37.2.2 bouyer } 147 1.37.2.2 bouyer } 148 1.37.2.2 bouyer 149 1.37.2.2 bouyer void 150 1.37.2.2 bouyer siop_attach(sc) 151 1.37.2.2 bouyer struct siop_softc *sc; 152 1.37.2.2 bouyer { 153 1.37.2.2 bouyer int error, i; 154 1.37.2.2 bouyer bus_dma_segment_t seg; 155 1.37.2.2 bouyer int rseg; 156 1.37.2.2 bouyer 157 1.37.2.2 bouyer /* 158 1.37.2.2 bouyer * Allocate DMA-safe memory for the script and map it. 159 1.37.2.2 bouyer */ 160 1.37.2.2 bouyer if ((sc->features & SF_CHIP_RAM) == 0) { 161 1.37.2.3 bouyer error = bus_dmamem_alloc(sc->sc_dmat, PAGE_SIZE, 162 1.37.2.3 bouyer PAGE_SIZE, 0, &seg, 1, &rseg, BUS_DMA_NOWAIT); 163 1.37.2.2 bouyer if (error) { 164 1.37.2.2 bouyer printf("%s: unable to allocate script DMA memory, " 165 1.37.2.2 bouyer "error = %d\n", sc->sc_dev.dv_xname, error); 166 1.37.2.2 bouyer return; 167 1.37.2.2 bouyer } 168 1.37.2.3 bouyer error = bus_dmamem_map(sc->sc_dmat, &seg, rseg, PAGE_SIZE, 169 1.37.2.2 bouyer (caddr_t *)&sc->sc_script, BUS_DMA_NOWAIT|BUS_DMA_COHERENT); 170 1.37.2.2 bouyer if (error) { 171 1.37.2.2 bouyer printf("%s: unable to map script DMA memory, " 172 1.37.2.2 bouyer "error = %d\n", sc->sc_dev.dv_xname, error); 173 1.37.2.2 bouyer return; 174 1.37.2.2 bouyer } 175 1.37.2.3 bouyer error = bus_dmamap_create(sc->sc_dmat, PAGE_SIZE, 1, 176 1.37.2.3 bouyer PAGE_SIZE, 0, BUS_DMA_NOWAIT, &sc->sc_scriptdma); 177 1.37.2.2 bouyer if (error) { 178 1.37.2.2 bouyer printf("%s: unable to create script DMA map, " 179 1.37.2.2 bouyer "error = %d\n", sc->sc_dev.dv_xname, error); 180 1.37.2.2 bouyer return; 181 1.37.2.2 bouyer } 182 1.37.2.2 bouyer error = bus_dmamap_load(sc->sc_dmat, sc->sc_scriptdma, 183 1.37.2.3 bouyer sc->sc_script, PAGE_SIZE, NULL, BUS_DMA_NOWAIT); 184 1.37.2.2 bouyer if (error) { 185 1.37.2.2 bouyer printf("%s: unable to load script DMA map, " 186 1.37.2.2 bouyer "error = %d\n", sc->sc_dev.dv_xname, error); 187 1.37.2.2 bouyer return; 188 1.37.2.2 bouyer } 189 1.37.2.2 bouyer sc->sc_scriptaddr = sc->sc_scriptdma->dm_segs[0].ds_addr; 190 1.37.2.3 bouyer sc->ram_size = PAGE_SIZE; 191 1.37.2.2 bouyer } 192 1.37.2.2 bouyer TAILQ_INIT(&sc->free_list); 193 1.37.2.2 bouyer TAILQ_INIT(&sc->cmds); 194 1.37.2.2 bouyer TAILQ_INIT(&sc->lunsw_list); 195 1.37.2.2 bouyer sc->sc_currschedslot = 0; 196 1.37.2.2 bouyer #ifdef SIOP_DEBUG 197 1.37.2.2 bouyer printf("%s: script size = %d, PHY addr=0x%x, VIRT=%p\n", 198 1.37.2.2 bouyer sc->sc_dev.dv_xname, (int)sizeof(siop_script), 199 1.37.2.2 bouyer (u_int32_t)sc->sc_scriptaddr, sc->sc_script); 200 1.37.2.2 bouyer #endif 201 1.37.2.2 bouyer 202 1.37.2.4 bouyer sc->sc_adapt.adapt_dev = &sc->sc_dev; 203 1.37.2.4 bouyer sc->sc_adapt.adapt_nchannels = 1; 204 1.37.2.4 bouyer sc->sc_adapt.adapt_openings = 225; 205 1.37.2.5 bouyer sc->sc_adapt.adapt_max_periph = SIOP_NTAG - 1; 206 1.37.2.4 bouyer sc->sc_adapt.adapt_ioctl = siop_ioctl; 207 1.37.2.4 bouyer sc->sc_adapt.adapt_minphys = minphys; 208 1.37.2.4 bouyer sc->sc_adapt.adapt_request = siop_scsipi_request; 209 1.37.2.4 bouyer 210 1.37.2.4 bouyer memset(&sc->sc_chan, 0, sizeof(sc->sc_chan)); 211 1.37.2.4 bouyer sc->sc_chan.chan_adapter = &sc->sc_adapt; 212 1.37.2.4 bouyer sc->sc_chan.chan_bustype = &scsi_bustype; 213 1.37.2.4 bouyer sc->sc_chan.chan_channel = 0; 214 1.37.2.4 bouyer sc->sc_chan.chan_ntargets = (sc->features & SF_BUS_WIDE) ? 16 : 8; 215 1.37.2.4 bouyer sc->sc_chan.chan_nluns = 8; 216 1.37.2.4 bouyer sc->sc_chan.chan_id = bus_space_read_1(sc->sc_rt, sc->sc_rh, SIOP_SCID); 217 1.37.2.4 bouyer if (sc->sc_chan.chan_id == 0 || 218 1.37.2.4 bouyer sc->sc_chan.chan_id >= sc->sc_chan.chan_ntargets) 219 1.37.2.4 bouyer sc->sc_chan.chan_id = SIOP_DEFAULT_TARGET; 220 1.37.2.2 bouyer 221 1.37.2.2 bouyer for (i = 0; i < 16; i++) 222 1.37.2.2 bouyer sc->targets[i] = NULL; 223 1.37.2.2 bouyer 224 1.37.2.2 bouyer /* find min/max sync period for this chip */ 225 1.37.2.2 bouyer sc->maxsync = 0; 226 1.37.2.2 bouyer sc->minsync = 255; 227 1.37.2.2 bouyer for (i = 0; i < sizeof(scf_period) / sizeof(scf_period[0]); i++) { 228 1.37.2.2 bouyer if (sc->clock_period != scf_period[i].clock) 229 1.37.2.2 bouyer continue; 230 1.37.2.2 bouyer if (sc->maxsync < scf_period[i].period) 231 1.37.2.2 bouyer sc->maxsync = scf_period[i].period; 232 1.37.2.2 bouyer if (sc->minsync > scf_period[i].period) 233 1.37.2.2 bouyer sc->minsync = scf_period[i].period; 234 1.37.2.2 bouyer } 235 1.37.2.2 bouyer if (sc->maxsync == 255 || sc->minsync == 0) 236 1.37.2.2 bouyer panic("siop: can't find my sync parameters\n"); 237 1.37.2.2 bouyer /* Do a bus reset, so that devices fall back to narrow/async */ 238 1.37.2.2 bouyer siop_resetbus(sc); 239 1.37.2.2 bouyer /* 240 1.37.2.2 bouyer * siop_reset() will reset the chip, thus clearing pending interrupts 241 1.37.2.2 bouyer */ 242 1.37.2.2 bouyer siop_reset(sc); 243 1.37.2.2 bouyer #ifdef DUMP_SCRIPT 244 1.37.2.2 bouyer siop_dump_script(sc); 245 1.37.2.2 bouyer #endif 246 1.37.2.2 bouyer 247 1.37.2.4 bouyer config_found((struct device*)sc, &sc->sc_chan, scsiprint); 248 1.37.2.2 bouyer } 249 1.37.2.2 bouyer 250 1.37.2.2 bouyer void 251 1.37.2.2 bouyer siop_reset(sc) 252 1.37.2.2 bouyer struct siop_softc *sc; 253 1.37.2.2 bouyer { 254 1.37.2.2 bouyer int i, j; 255 1.37.2.2 bouyer struct siop_lunsw *lunsw; 256 1.37.2.2 bouyer 257 1.37.2.2 bouyer siop_common_reset(sc); 258 1.37.2.2 bouyer 259 1.37.2.2 bouyer /* copy and patch the script */ 260 1.37.2.2 bouyer if (sc->features & SF_CHIP_RAM) { 261 1.37.2.2 bouyer bus_space_write_region_4(sc->sc_ramt, sc->sc_ramh, 0, 262 1.37.2.2 bouyer siop_script, sizeof(siop_script) / sizeof(siop_script[0])); 263 1.37.2.2 bouyer for (j = 0; j < 264 1.37.2.2 bouyer (sizeof(E_abs_msgin_Used) / sizeof(E_abs_msgin_Used[0])); 265 1.37.2.2 bouyer j++) { 266 1.37.2.2 bouyer bus_space_write_4(sc->sc_ramt, sc->sc_ramh, 267 1.37.2.2 bouyer E_abs_msgin_Used[j] * 4, 268 1.37.2.2 bouyer sc->sc_scriptaddr + Ent_msgin_space); 269 1.37.2.2 bouyer } 270 1.37.2.2 bouyer } else { 271 1.37.2.2 bouyer for (j = 0; 272 1.37.2.2 bouyer j < (sizeof(siop_script) / sizeof(siop_script[0])); j++) { 273 1.37.2.2 bouyer sc->sc_script[j] = htole32(siop_script[j]); 274 1.37.2.2 bouyer } 275 1.37.2.2 bouyer for (j = 0; j < 276 1.37.2.2 bouyer (sizeof(E_abs_msgin_Used) / sizeof(E_abs_msgin_Used[0])); 277 1.37.2.2 bouyer j++) { 278 1.37.2.2 bouyer sc->sc_script[E_abs_msgin_Used[j]] = 279 1.37.2.2 bouyer htole32(sc->sc_scriptaddr + Ent_msgin_space); 280 1.37.2.2 bouyer } 281 1.37.2.2 bouyer } 282 1.37.2.2 bouyer sc->script_free_lo = sizeof(siop_script) / sizeof(siop_script[0]); 283 1.37.2.2 bouyer sc->script_free_hi = sc->ram_size / 4; 284 1.37.2.2 bouyer 285 1.37.2.2 bouyer /* free used and unused lun switches */ 286 1.37.2.2 bouyer while((lunsw = TAILQ_FIRST(&sc->lunsw_list)) != NULL) { 287 1.37.2.2 bouyer #ifdef SIOP_DEBUG 288 1.37.2.2 bouyer printf("%s: free lunsw at offset %d\n", 289 1.37.2.2 bouyer sc->sc_dev.dv_xname, lunsw->lunsw_off); 290 1.37.2.2 bouyer #endif 291 1.37.2.2 bouyer TAILQ_REMOVE(&sc->lunsw_list, lunsw, next); 292 1.37.2.2 bouyer free(lunsw, M_DEVBUF); 293 1.37.2.2 bouyer } 294 1.37.2.2 bouyer TAILQ_INIT(&sc->lunsw_list); 295 1.37.2.2 bouyer /* restore reselect switch */ 296 1.37.2.4 bouyer for (i = 0; i < sc->sc_chan.chan_ntargets; i++) { 297 1.37.2.2 bouyer if (sc->targets[i] == NULL) 298 1.37.2.2 bouyer continue; 299 1.37.2.2 bouyer #ifdef SIOP_DEBUG 300 1.37.2.2 bouyer printf("%s: restore sw for target %d\n", 301 1.37.2.2 bouyer sc->sc_dev.dv_xname, i); 302 1.37.2.2 bouyer #endif 303 1.37.2.2 bouyer free(sc->targets[i]->lunsw, M_DEVBUF); 304 1.37.2.2 bouyer sc->targets[i]->lunsw = siop_get_lunsw(sc); 305 1.37.2.2 bouyer if (sc->targets[i]->lunsw == NULL) { 306 1.37.2.2 bouyer printf("%s: can't alloc lunsw for target %d\n", 307 1.37.2.2 bouyer sc->sc_dev.dv_xname, i); 308 1.37.2.2 bouyer break; 309 1.37.2.2 bouyer } 310 1.37.2.2 bouyer siop_add_reselsw(sc, i); 311 1.37.2.2 bouyer } 312 1.37.2.2 bouyer 313 1.37.2.2 bouyer /* start script */ 314 1.37.2.2 bouyer if ((sc->features & SF_CHIP_RAM) == 0) { 315 1.37.2.3 bouyer bus_dmamap_sync(sc->sc_dmat, sc->sc_scriptdma, 0, PAGE_SIZE, 316 1.37.2.2 bouyer BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 317 1.37.2.2 bouyer } 318 1.37.2.2 bouyer bus_space_write_4(sc->sc_rt, sc->sc_rh, SIOP_DSP, 319 1.37.2.2 bouyer sc->sc_scriptaddr + Ent_reselect); 320 1.37.2.2 bouyer } 321 1.37.2.2 bouyer 322 1.37.2.2 bouyer #if 0 323 1.37.2.2 bouyer #define CALL_SCRIPT(ent) do {\ 324 1.37.2.2 bouyer printf ("start script DSA 0x%lx DSP 0x%lx\n", \ 325 1.37.2.2 bouyer siop_cmd->dsa, \ 326 1.37.2.2 bouyer sc->sc_scriptaddr + ent); \ 327 1.37.2.2 bouyer bus_space_write_4(sc->sc_rt, sc->sc_rh, SIOP_DSP, sc->sc_scriptaddr + ent); \ 328 1.37.2.2 bouyer } while (0) 329 1.37.2.2 bouyer #else 330 1.37.2.2 bouyer #define CALL_SCRIPT(ent) do {\ 331 1.37.2.2 bouyer bus_space_write_4(sc->sc_rt, sc->sc_rh, SIOP_DSP, sc->sc_scriptaddr + ent); \ 332 1.37.2.2 bouyer } while (0) 333 1.37.2.2 bouyer #endif 334 1.37.2.2 bouyer 335 1.37.2.2 bouyer int 336 1.37.2.2 bouyer siop_intr(v) 337 1.37.2.2 bouyer void *v; 338 1.37.2.2 bouyer { 339 1.37.2.2 bouyer struct siop_softc *sc = v; 340 1.37.2.2 bouyer struct siop_target *siop_target; 341 1.37.2.2 bouyer struct siop_cmd *siop_cmd; 342 1.37.2.2 bouyer struct siop_lun *siop_lun; 343 1.37.2.2 bouyer struct scsipi_xfer *xs; 344 1.37.2.2 bouyer int istat, sist, sstat1, dstat; 345 1.37.2.2 bouyer u_int32_t irqcode; 346 1.37.2.2 bouyer int need_reset = 0; 347 1.37.2.2 bouyer int offset, target, lun, tag; 348 1.37.2.2 bouyer bus_addr_t dsa; 349 1.37.2.2 bouyer struct siop_cbd *cbdp; 350 1.37.2.2 bouyer int freetarget = 0; 351 1.37.2.7 bouyer int restart = 0; 352 1.37.2.2 bouyer 353 1.37.2.2 bouyer istat = bus_space_read_1(sc->sc_rt, sc->sc_rh, SIOP_ISTAT); 354 1.37.2.2 bouyer if ((istat & (ISTAT_INTF | ISTAT_DIP | ISTAT_SIP)) == 0) 355 1.37.2.2 bouyer return 0; 356 1.37.2.2 bouyer INCSTAT(siop_stat_intr); 357 1.37.2.2 bouyer if (istat & ISTAT_INTF) { 358 1.37.2.2 bouyer printf("INTRF\n"); 359 1.37.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_ISTAT, ISTAT_INTF); 360 1.37.2.2 bouyer } 361 1.37.2.2 bouyer /* use DSA to find the current siop_cmd */ 362 1.37.2.2 bouyer dsa = bus_space_read_4(sc->sc_rt, sc->sc_rh, SIOP_DSA); 363 1.37.2.2 bouyer for (cbdp = TAILQ_FIRST(&sc->cmds); cbdp != NULL; 364 1.37.2.2 bouyer cbdp = TAILQ_NEXT(cbdp, next)) { 365 1.37.2.2 bouyer if (dsa >= cbdp->xferdma->dm_segs[0].ds_addr && 366 1.37.2.3 bouyer dsa < cbdp->xferdma->dm_segs[0].ds_addr + PAGE_SIZE) { 367 1.37.2.2 bouyer dsa -= cbdp->xferdma->dm_segs[0].ds_addr; 368 1.37.2.2 bouyer siop_cmd = &cbdp->cmds[dsa / sizeof(struct siop_xfer)]; 369 1.37.2.2 bouyer siop_table_sync(siop_cmd, 370 1.37.2.2 bouyer BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 371 1.37.2.2 bouyer break; 372 1.37.2.2 bouyer } 373 1.37.2.2 bouyer } 374 1.37.2.2 bouyer if (cbdp == NULL) { 375 1.37.2.2 bouyer siop_cmd = NULL; 376 1.37.2.2 bouyer } 377 1.37.2.2 bouyer if (siop_cmd) { 378 1.37.2.2 bouyer xs = siop_cmd->xs; 379 1.37.2.2 bouyer siop_target = siop_cmd->siop_target; 380 1.37.2.4 bouyer target = siop_cmd->xs->xs_periph->periph_target; 381 1.37.2.4 bouyer lun = siop_cmd->xs->xs_periph->periph_lun; 382 1.37.2.2 bouyer tag = siop_cmd->tag; 383 1.37.2.2 bouyer siop_lun = siop_target->siop_lun[lun]; 384 1.37.2.2 bouyer #ifdef DIAGNOSTIC 385 1.37.2.6 bouyer if (siop_cmd->status != CMDST_ACTIVE) { 386 1.37.2.2 bouyer printf("siop_cmd (lun %d) not active (%d)\n", 387 1.37.2.2 bouyer lun, siop_cmd->status); 388 1.37.2.2 bouyer xs = NULL; 389 1.37.2.2 bouyer siop_target = NULL; 390 1.37.2.2 bouyer target = -1; 391 1.37.2.2 bouyer lun = -1; 392 1.37.2.2 bouyer tag = -1; 393 1.37.2.2 bouyer siop_lun = NULL; 394 1.37.2.2 bouyer siop_cmd = NULL; 395 1.37.2.2 bouyer } else if (siop_lun->siop_tag[tag].active != siop_cmd) { 396 1.37.2.2 bouyer printf("siop_cmd (lun %d tag %d) not in siop_lun " 397 1.37.2.2 bouyer "active (%p != %p)\n", lun, tag, siop_cmd, 398 1.37.2.2 bouyer siop_lun->siop_tag[tag].active); 399 1.37.2.2 bouyer } 400 1.37.2.2 bouyer #endif 401 1.37.2.2 bouyer } else { 402 1.37.2.2 bouyer xs = NULL; 403 1.37.2.2 bouyer siop_target = NULL; 404 1.37.2.2 bouyer target = -1; 405 1.37.2.2 bouyer lun = -1; 406 1.37.2.2 bouyer tag = -1; 407 1.37.2.2 bouyer siop_lun = NULL; 408 1.37.2.2 bouyer } 409 1.37.2.2 bouyer if (istat & ISTAT_DIP) { 410 1.37.2.2 bouyer dstat = bus_space_read_1(sc->sc_rt, sc->sc_rh, SIOP_DSTAT); 411 1.37.2.2 bouyer if (dstat & DSTAT_SSI) { 412 1.37.2.2 bouyer printf("single step dsp 0x%08x dsa 0x08%x\n", 413 1.37.2.2 bouyer (int)(bus_space_read_4(sc->sc_rt, sc->sc_rh, SIOP_DSP) - 414 1.37.2.2 bouyer sc->sc_scriptaddr), 415 1.37.2.2 bouyer bus_space_read_4(sc->sc_rt, sc->sc_rh, SIOP_DSA)); 416 1.37.2.2 bouyer if ((dstat & ~(DSTAT_DFE | DSTAT_SSI)) == 0 && 417 1.37.2.2 bouyer (istat & ISTAT_SIP) == 0) { 418 1.37.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, 419 1.37.2.2 bouyer SIOP_DCNTL, bus_space_read_1(sc->sc_rt, 420 1.37.2.2 bouyer sc->sc_rh, SIOP_DCNTL) | DCNTL_STD); 421 1.37.2.2 bouyer } 422 1.37.2.2 bouyer return 1; 423 1.37.2.2 bouyer } 424 1.37.2.2 bouyer if (dstat & ~(DSTAT_SIR | DSTAT_DFE | DSTAT_SSI)) { 425 1.37.2.2 bouyer printf("DMA IRQ:"); 426 1.37.2.2 bouyer if (dstat & DSTAT_IID) 427 1.37.2.2 bouyer printf(" Illegal instruction"); 428 1.37.2.2 bouyer if (dstat & DSTAT_ABRT) 429 1.37.2.2 bouyer printf(" abort"); 430 1.37.2.2 bouyer if (dstat & DSTAT_BF) 431 1.37.2.2 bouyer printf(" bus fault"); 432 1.37.2.2 bouyer if (dstat & DSTAT_MDPE) 433 1.37.2.2 bouyer printf(" parity"); 434 1.37.2.2 bouyer if (dstat & DSTAT_DFE) 435 1.37.2.2 bouyer printf(" dma fifo empty"); 436 1.37.2.2 bouyer printf(", DSP=0x%x DSA=0x%x: ", 437 1.37.2.2 bouyer (int)(bus_space_read_4(sc->sc_rt, sc->sc_rh, SIOP_DSP) - 438 1.37.2.2 bouyer sc->sc_scriptaddr), 439 1.37.2.2 bouyer bus_space_read_4(sc->sc_rt, sc->sc_rh, SIOP_DSA)); 440 1.37.2.2 bouyer if (siop_cmd) 441 1.37.2.2 bouyer printf("last msg_in=0x%x status=0x%x\n", 442 1.37.2.2 bouyer siop_cmd->siop_tables.msg_in[0], 443 1.37.2.2 bouyer le32toh(siop_cmd->siop_tables.status)); 444 1.37.2.2 bouyer else 445 1.37.2.2 bouyer printf("%s: current DSA invalid\n", 446 1.37.2.2 bouyer sc->sc_dev.dv_xname); 447 1.37.2.2 bouyer need_reset = 1; 448 1.37.2.2 bouyer } 449 1.37.2.2 bouyer } 450 1.37.2.2 bouyer if (istat & ISTAT_SIP) { 451 1.37.2.2 bouyer if (istat & ISTAT_DIP) 452 1.37.2.2 bouyer delay(10); 453 1.37.2.2 bouyer /* 454 1.37.2.2 bouyer * Can't read sist0 & sist1 independantly, or we have to 455 1.37.2.2 bouyer * insert delay 456 1.37.2.2 bouyer */ 457 1.37.2.2 bouyer sist = bus_space_read_2(sc->sc_rt, sc->sc_rh, SIOP_SIST0); 458 1.37.2.2 bouyer sstat1 = bus_space_read_1(sc->sc_rt, sc->sc_rh, SIOP_SSTAT1); 459 1.37.2.2 bouyer #ifdef SIOP_DEBUG_INTR 460 1.37.2.2 bouyer printf("scsi interrupt, sist=0x%x sstat1=0x%x " 461 1.37.2.2 bouyer "DSA=0x%x DSP=0x%lx\n", sist, 462 1.37.2.2 bouyer bus_space_read_1(sc->sc_rt, sc->sc_rh, SIOP_SSTAT1), 463 1.37.2.2 bouyer bus_space_read_4(sc->sc_rt, sc->sc_rh, SIOP_DSA), 464 1.37.2.2 bouyer (u_long)(bus_space_read_4(sc->sc_rt, sc->sc_rh, SIOP_DSP) - 465 1.37.2.2 bouyer sc->sc_scriptaddr)); 466 1.37.2.2 bouyer #endif 467 1.37.2.2 bouyer if (sist & SIST0_RST) { 468 1.37.2.2 bouyer siop_handle_reset(sc); 469 1.37.2.2 bouyer /* no table to flush here */ 470 1.37.2.2 bouyer return 1; 471 1.37.2.2 bouyer } 472 1.37.2.2 bouyer if (sist & SIST0_SGE) { 473 1.37.2.2 bouyer if (siop_cmd) 474 1.37.2.4 bouyer scsipi_printaddr(xs->xs_periph); 475 1.37.2.2 bouyer else 476 1.37.2.2 bouyer printf("%s:", sc->sc_dev.dv_xname); 477 1.37.2.2 bouyer printf("scsi gross error\n"); 478 1.37.2.2 bouyer goto reset; 479 1.37.2.2 bouyer } 480 1.37.2.2 bouyer if ((sist & SIST0_MA) && need_reset == 0) { 481 1.37.2.2 bouyer if (siop_cmd) { 482 1.37.2.2 bouyer int scratcha0; 483 1.37.2.2 bouyer dstat = bus_space_read_1(sc->sc_rt, sc->sc_rh, 484 1.37.2.2 bouyer SIOP_DSTAT); 485 1.37.2.2 bouyer /* 486 1.37.2.2 bouyer * first restore DSA, in case we were in a S/G 487 1.37.2.2 bouyer * operation. 488 1.37.2.2 bouyer */ 489 1.37.2.2 bouyer bus_space_write_4(sc->sc_rt, sc->sc_rh, 490 1.37.2.2 bouyer SIOP_DSA, siop_cmd->dsa); 491 1.37.2.2 bouyer scratcha0 = bus_space_read_1(sc->sc_rt, 492 1.37.2.2 bouyer sc->sc_rh, SIOP_SCRATCHA); 493 1.37.2.2 bouyer switch (sstat1 & SSTAT1_PHASE_MASK) { 494 1.37.2.2 bouyer case SSTAT1_PHASE_STATUS: 495 1.37.2.2 bouyer /* 496 1.37.2.2 bouyer * previous phase may be aborted for any reason 497 1.37.2.2 bouyer * ( for example, the target has less data to 498 1.37.2.2 bouyer * transfer than requested). Just go to status 499 1.37.2.2 bouyer * and the command should terminate. 500 1.37.2.2 bouyer */ 501 1.37.2.2 bouyer INCSTAT(siop_stat_intr_shortxfer); 502 1.37.2.2 bouyer if ((dstat & DSTAT_DFE) == 0) 503 1.37.2.2 bouyer siop_clearfifo(sc); 504 1.37.2.2 bouyer /* no table to flush here */ 505 1.37.2.2 bouyer CALL_SCRIPT(Ent_status); 506 1.37.2.2 bouyer return 1; 507 1.37.2.2 bouyer case SSTAT1_PHASE_MSGIN: 508 1.37.2.2 bouyer /* 509 1.37.2.2 bouyer * target may be ready to disconnect 510 1.37.2.2 bouyer * Save data pointers just in case. 511 1.37.2.2 bouyer */ 512 1.37.2.2 bouyer INCSTAT(siop_stat_intr_xferdisc); 513 1.37.2.2 bouyer if (scratcha0 & A_flag_data) 514 1.37.2.2 bouyer siop_sdp(siop_cmd); 515 1.37.2.2 bouyer else if ((dstat & DSTAT_DFE) == 0) 516 1.37.2.2 bouyer siop_clearfifo(sc); 517 1.37.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, 518 1.37.2.2 bouyer SIOP_SCRATCHA, 519 1.37.2.2 bouyer scratcha0 & ~A_flag_data); 520 1.37.2.2 bouyer siop_table_sync(siop_cmd, 521 1.37.2.2 bouyer BUS_DMASYNC_PREREAD | 522 1.37.2.2 bouyer BUS_DMASYNC_PREWRITE); 523 1.37.2.2 bouyer CALL_SCRIPT(Ent_msgin); 524 1.37.2.2 bouyer return 1; 525 1.37.2.2 bouyer } 526 1.37.2.2 bouyer printf("%s: unexpected phase mismatch %d\n", 527 1.37.2.2 bouyer sc->sc_dev.dv_xname, 528 1.37.2.2 bouyer sstat1 & SSTAT1_PHASE_MASK); 529 1.37.2.2 bouyer } else { 530 1.37.2.2 bouyer printf("%s: phase mismatch without command\n", 531 1.37.2.2 bouyer sc->sc_dev.dv_xname); 532 1.37.2.2 bouyer } 533 1.37.2.2 bouyer need_reset = 1; 534 1.37.2.2 bouyer } 535 1.37.2.2 bouyer if (sist & SIST0_PAR) { 536 1.37.2.2 bouyer /* parity error, reset */ 537 1.37.2.2 bouyer if (siop_cmd) 538 1.37.2.4 bouyer scsipi_printaddr(xs->xs_periph); 539 1.37.2.2 bouyer else 540 1.37.2.2 bouyer printf("%s:", sc->sc_dev.dv_xname); 541 1.37.2.2 bouyer printf("parity error\n"); 542 1.37.2.2 bouyer goto reset; 543 1.37.2.2 bouyer } 544 1.37.2.2 bouyer if ((sist & (SIST1_STO << 8)) && need_reset == 0) { 545 1.37.2.2 bouyer /* selection time out, assume there's no device here */ 546 1.37.2.2 bouyer if (siop_cmd) { 547 1.37.2.2 bouyer siop_cmd->status = CMDST_DONE; 548 1.37.2.2 bouyer xs->error = XS_SELTIMEOUT; 549 1.37.2.2 bouyer freetarget = 1; 550 1.37.2.2 bouyer goto end; 551 1.37.2.2 bouyer } else { 552 1.37.2.2 bouyer printf("%s: selection timeout without " 553 1.37.2.2 bouyer "command\n", sc->sc_dev.dv_xname); 554 1.37.2.2 bouyer need_reset = 1; 555 1.37.2.2 bouyer } 556 1.37.2.2 bouyer } 557 1.37.2.2 bouyer if (sist & SIST0_UDC) { 558 1.37.2.2 bouyer /* 559 1.37.2.2 bouyer * unexpected disconnect. Usually the target signals 560 1.37.2.2 bouyer * a fatal condition this way. Attempt to get sense. 561 1.37.2.2 bouyer */ 562 1.37.2.2 bouyer if (siop_cmd) { 563 1.37.2.2 bouyer siop_cmd->siop_tables.status = 564 1.37.2.2 bouyer htole32(SCSI_CHECK); 565 1.37.2.2 bouyer goto end; 566 1.37.2.2 bouyer } 567 1.37.2.2 bouyer printf("%s: unexpected disconnect without " 568 1.37.2.2 bouyer "command\n", sc->sc_dev.dv_xname); 569 1.37.2.2 bouyer goto reset; 570 1.37.2.2 bouyer } 571 1.37.2.2 bouyer if (sist & (SIST1_SBMC << 8)) { 572 1.37.2.2 bouyer /* SCSI bus mode change */ 573 1.37.2.2 bouyer if (siop_modechange(sc) == 0 || need_reset == 1) 574 1.37.2.2 bouyer goto reset; 575 1.37.2.2 bouyer if ((istat & ISTAT_DIP) && (dstat & DSTAT_SIR)) { 576 1.37.2.2 bouyer /* 577 1.37.2.2 bouyer * we have a script interrupt, it will 578 1.37.2.2 bouyer * restart the script. 579 1.37.2.2 bouyer */ 580 1.37.2.2 bouyer goto scintr; 581 1.37.2.2 bouyer } 582 1.37.2.2 bouyer /* 583 1.37.2.2 bouyer * else we have to restart it ourselve, at the 584 1.37.2.2 bouyer * interrupted instruction. 585 1.37.2.2 bouyer */ 586 1.37.2.2 bouyer bus_space_write_4(sc->sc_rt, sc->sc_rh, SIOP_DSP, 587 1.37.2.2 bouyer bus_space_read_4(sc->sc_rt, sc->sc_rh, 588 1.37.2.2 bouyer SIOP_DSP) - 8); 589 1.37.2.2 bouyer return 1; 590 1.37.2.2 bouyer } 591 1.37.2.2 bouyer /* Else it's an unhandled exeption (for now). */ 592 1.37.2.2 bouyer printf("%s: unhandled scsi interrupt, sist=0x%x sstat1=0x%x " 593 1.37.2.2 bouyer "DSA=0x%x DSP=0x%x\n", sc->sc_dev.dv_xname, sist, 594 1.37.2.2 bouyer bus_space_read_1(sc->sc_rt, sc->sc_rh, SIOP_SSTAT1), 595 1.37.2.2 bouyer bus_space_read_4(sc->sc_rt, sc->sc_rh, SIOP_DSA), 596 1.37.2.2 bouyer (int)(bus_space_read_4(sc->sc_rt, sc->sc_rh, SIOP_DSP) - 597 1.37.2.2 bouyer sc->sc_scriptaddr)); 598 1.37.2.2 bouyer if (siop_cmd) { 599 1.37.2.2 bouyer siop_cmd->status = CMDST_DONE; 600 1.37.2.2 bouyer xs->error = XS_SELTIMEOUT; 601 1.37.2.2 bouyer goto end; 602 1.37.2.2 bouyer } 603 1.37.2.2 bouyer need_reset = 1; 604 1.37.2.2 bouyer } 605 1.37.2.2 bouyer if (need_reset) { 606 1.37.2.2 bouyer reset: 607 1.37.2.2 bouyer /* fatal error, reset the bus */ 608 1.37.2.2 bouyer siop_resetbus(sc); 609 1.37.2.2 bouyer /* no table to flush here */ 610 1.37.2.2 bouyer return 1; 611 1.37.2.2 bouyer } 612 1.37.2.2 bouyer 613 1.37.2.2 bouyer scintr: 614 1.37.2.2 bouyer if ((istat & ISTAT_DIP) && (dstat & DSTAT_SIR)) { /* script interrupt */ 615 1.37.2.2 bouyer irqcode = bus_space_read_4(sc->sc_rt, sc->sc_rh, 616 1.37.2.2 bouyer SIOP_DSPS); 617 1.37.2.2 bouyer #ifdef SIOP_DEBUG_INTR 618 1.37.2.2 bouyer printf("script interrupt 0x%x\n", irqcode); 619 1.37.2.2 bouyer #endif 620 1.37.2.2 bouyer /* 621 1.37.2.2 bouyer * no command, or an inactive command is only valid for a 622 1.37.2.2 bouyer * reselect interrupt 623 1.37.2.2 bouyer */ 624 1.37.2.2 bouyer if ((irqcode & 0x80) == 0) { 625 1.37.2.2 bouyer if (siop_cmd == NULL) { 626 1.37.2.2 bouyer printf("%s: script interrupt (0x%x) with 627 1.37.2.2 bouyer invalid DSA !!!\n", sc->sc_dev.dv_xname, 628 1.37.2.2 bouyer irqcode); 629 1.37.2.2 bouyer goto reset; 630 1.37.2.2 bouyer } 631 1.37.2.6 bouyer if (siop_cmd->status != CMDST_ACTIVE) { 632 1.37.2.2 bouyer printf("%s: command with invalid status " 633 1.37.2.2 bouyer "(IRQ code 0x%x current status %d) !\n", 634 1.37.2.2 bouyer sc->sc_dev.dv_xname, 635 1.37.2.2 bouyer irqcode, siop_cmd->status); 636 1.37.2.2 bouyer xs = NULL; 637 1.37.2.2 bouyer } 638 1.37.2.2 bouyer } 639 1.37.2.2 bouyer switch(irqcode) { 640 1.37.2.2 bouyer case A_int_err: 641 1.37.2.2 bouyer printf("error, DSP=0x%x\n", 642 1.37.2.2 bouyer (int)(bus_space_read_4(sc->sc_rt, sc->sc_rh, 643 1.37.2.2 bouyer SIOP_DSP) - sc->sc_scriptaddr)); 644 1.37.2.2 bouyer if (xs) { 645 1.37.2.2 bouyer xs->error = XS_SELTIMEOUT; 646 1.37.2.2 bouyer goto end; 647 1.37.2.2 bouyer } else { 648 1.37.2.2 bouyer goto reset; 649 1.37.2.2 bouyer } 650 1.37.2.2 bouyer case A_int_reseltarg: 651 1.37.2.2 bouyer printf("%s: reselect with invalid target\n", 652 1.37.2.2 bouyer sc->sc_dev.dv_xname); 653 1.37.2.2 bouyer goto reset; 654 1.37.2.2 bouyer case A_int_resellun: 655 1.37.2.2 bouyer INCSTAT(siop_stat_intr_lunresel); 656 1.37.2.2 bouyer target = bus_space_read_1(sc->sc_rt, sc->sc_rh, 657 1.37.2.2 bouyer SIOP_SCRATCHA) & 0xf; 658 1.37.2.2 bouyer lun = bus_space_read_1(sc->sc_rt, sc->sc_rh, 659 1.37.2.2 bouyer SIOP_SCRATCHA + 1); 660 1.37.2.2 bouyer tag = bus_space_read_1(sc->sc_rt, sc->sc_rh, 661 1.37.2.2 bouyer SIOP_SCRATCHA + 2); 662 1.37.2.2 bouyer siop_target = sc->targets[target]; 663 1.37.2.2 bouyer if (siop_target == NULL) { 664 1.37.2.2 bouyer printf("%s: reselect with invalid " 665 1.37.2.2 bouyer "target %d\n", sc->sc_dev.dv_xname, target); 666 1.37.2.2 bouyer goto reset; 667 1.37.2.2 bouyer } 668 1.37.2.2 bouyer siop_lun = siop_target->siop_lun[lun]; 669 1.37.2.2 bouyer if (siop_lun == NULL) { 670 1.37.2.2 bouyer printf("%s: target %d reselect with invalid " 671 1.37.2.2 bouyer "lun %d\n", sc->sc_dev.dv_xname, 672 1.37.2.2 bouyer target, lun); 673 1.37.2.2 bouyer goto reset; 674 1.37.2.2 bouyer } 675 1.37.2.2 bouyer if (siop_lun->siop_tag[tag].active == NULL) { 676 1.37.2.2 bouyer printf("%s: target %d lun %d tag %d reselect " 677 1.37.2.2 bouyer "without command\n", sc->sc_dev.dv_xname, 678 1.37.2.2 bouyer target, lun, tag); 679 1.37.2.2 bouyer goto reset; 680 1.37.2.2 bouyer } 681 1.37.2.2 bouyer siop_cmd = siop_lun->siop_tag[tag].active; 682 1.37.2.2 bouyer bus_space_write_4(sc->sc_rt, sc->sc_rh, SIOP_DSP, 683 1.37.2.2 bouyer siop_cmd->dsa + sizeof(struct siop_xfer_common) + 684 1.37.2.2 bouyer Ent_ldsa_reload_dsa); 685 1.37.2.8 bouyer siop_table_sync(siop_cmd, BUS_DMASYNC_PREWRITE); 686 1.37.2.2 bouyer return 1; 687 1.37.2.2 bouyer case A_int_reseltag: 688 1.37.2.2 bouyer printf("%s: reselect with invalid tag\n", 689 1.37.2.2 bouyer sc->sc_dev.dv_xname); 690 1.37.2.2 bouyer goto reset; 691 1.37.2.2 bouyer case A_int_msgin: 692 1.37.2.2 bouyer { 693 1.37.2.2 bouyer int msgin = bus_space_read_1(sc->sc_rt, sc->sc_rh, 694 1.37.2.2 bouyer SIOP_SFBR); 695 1.37.2.2 bouyer if (msgin == MSG_MESSAGE_REJECT) { 696 1.37.2.2 bouyer int msg, extmsg; 697 1.37.2.2 bouyer if (siop_cmd->siop_tables.msg_out[0] & 0x80) { 698 1.37.2.2 bouyer /* 699 1.37.2.2 bouyer * message was part of a identify + 700 1.37.2.2 bouyer * something else. Identify shoudl't 701 1.37.2.2 bouyer * have been rejected. 702 1.37.2.2 bouyer */ 703 1.37.2.2 bouyer msg = siop_cmd->siop_tables.msg_out[1]; 704 1.37.2.2 bouyer extmsg = 705 1.37.2.2 bouyer siop_cmd->siop_tables.msg_out[3]; 706 1.37.2.2 bouyer } else { 707 1.37.2.2 bouyer msg = siop_cmd->siop_tables.msg_out[0]; 708 1.37.2.2 bouyer extmsg = 709 1.37.2.2 bouyer siop_cmd->siop_tables.msg_out[2]; 710 1.37.2.2 bouyer } 711 1.37.2.2 bouyer if (msg == MSG_MESSAGE_REJECT) { 712 1.37.2.2 bouyer /* MSG_REJECT for a MSG_REJECT !*/ 713 1.37.2.2 bouyer if (xs) 714 1.37.2.4 bouyer scsipi_printaddr(xs->xs_periph); 715 1.37.2.2 bouyer else 716 1.37.2.2 bouyer printf("%s: ", 717 1.37.2.2 bouyer sc->sc_dev.dv_xname); 718 1.37.2.2 bouyer printf("our reject message was " 719 1.37.2.2 bouyer "rejected\n"); 720 1.37.2.2 bouyer goto reset; 721 1.37.2.2 bouyer } 722 1.37.2.2 bouyer if (msg == MSG_EXTENDED && 723 1.37.2.2 bouyer extmsg == MSG_EXT_WDTR) { 724 1.37.2.2 bouyer /* WDTR rejected, initiate sync */ 725 1.37.2.2 bouyer if ((siop_target->flags & TARF_SYNC) 726 1.37.2.2 bouyer == 0) { 727 1.37.2.2 bouyer siop_target->status = TARST_OK; 728 1.37.2.4 bouyer siop_update_xfer_mode(sc, 729 1.37.2.4 bouyer target); 730 1.37.2.2 bouyer /* no table to flush here */ 731 1.37.2.2 bouyer CALL_SCRIPT(Ent_msgin_ack); 732 1.37.2.2 bouyer return 1; 733 1.37.2.2 bouyer } 734 1.37.2.2 bouyer siop_target->status = TARST_SYNC_NEG; 735 1.37.2.2 bouyer siop_sdtr_msg(siop_cmd, 0, 736 1.37.2.2 bouyer sc->minsync, sc->maxoff); 737 1.37.2.2 bouyer siop_table_sync(siop_cmd, 738 1.37.2.2 bouyer BUS_DMASYNC_PREREAD | 739 1.37.2.2 bouyer BUS_DMASYNC_PREWRITE); 740 1.37.2.2 bouyer CALL_SCRIPT(Ent_send_msgout); 741 1.37.2.2 bouyer return 1; 742 1.37.2.2 bouyer } else if (msg == MSG_EXTENDED && 743 1.37.2.2 bouyer extmsg == MSG_EXT_SDTR) { 744 1.37.2.2 bouyer /* sync rejected */ 745 1.37.2.4 bouyer siop_target->offset = 0; 746 1.37.2.4 bouyer siop_target->period = 0; 747 1.37.2.2 bouyer siop_target->status = TARST_OK; 748 1.37.2.4 bouyer siop_update_xfer_mode(sc, target); 749 1.37.2.2 bouyer /* no table to flush here */ 750 1.37.2.2 bouyer CALL_SCRIPT(Ent_msgin_ack); 751 1.37.2.2 bouyer return 1; 752 1.37.2.2 bouyer } else if (msg == MSG_SIMPLE_Q_TAG || 753 1.37.2.2 bouyer msg == MSG_HEAD_OF_Q_TAG || 754 1.37.2.2 bouyer msg == MSG_ORDERED_Q_TAG) { 755 1.37.2.2 bouyer if (siop_handle_qtag_reject( 756 1.37.2.2 bouyer siop_cmd) == -1) 757 1.37.2.2 bouyer goto reset; 758 1.37.2.2 bouyer CALL_SCRIPT(Ent_msgin_ack); 759 1.37.2.2 bouyer return 1; 760 1.37.2.2 bouyer } 761 1.37.2.2 bouyer if (xs) 762 1.37.2.4 bouyer scsipi_printaddr(xs->xs_periph); 763 1.37.2.2 bouyer else 764 1.37.2.2 bouyer printf("%s: ", sc->sc_dev.dv_xname); 765 1.37.2.2 bouyer if (msg == MSG_EXTENDED) { 766 1.37.2.2 bouyer printf("scsi message reject, extended " 767 1.37.2.2 bouyer "message sent was 0x%x\n", extmsg); 768 1.37.2.2 bouyer } else { 769 1.37.2.2 bouyer printf("scsi message reject, message " 770 1.37.2.2 bouyer "sent was 0x%x\n", msg); 771 1.37.2.2 bouyer } 772 1.37.2.2 bouyer /* no table to flush here */ 773 1.37.2.2 bouyer CALL_SCRIPT(Ent_msgin_ack); 774 1.37.2.2 bouyer return 1; 775 1.37.2.2 bouyer } 776 1.37.2.2 bouyer if (xs) 777 1.37.2.4 bouyer scsipi_printaddr(xs->xs_periph); 778 1.37.2.2 bouyer else 779 1.37.2.2 bouyer printf("%s: ", sc->sc_dev.dv_xname); 780 1.37.2.2 bouyer printf("unhandled message 0x%x\n", 781 1.37.2.2 bouyer siop_cmd->siop_tables.msg_in[0]); 782 1.37.2.2 bouyer siop_cmd->siop_tables.msg_out[0] = MSG_MESSAGE_REJECT; 783 1.37.2.2 bouyer siop_cmd->siop_tables.t_msgout.count= htole32(1); 784 1.37.2.2 bouyer siop_table_sync(siop_cmd, 785 1.37.2.2 bouyer BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 786 1.37.2.2 bouyer CALL_SCRIPT(Ent_send_msgout); 787 1.37.2.2 bouyer return 1; 788 1.37.2.2 bouyer } 789 1.37.2.2 bouyer case A_int_extmsgin: 790 1.37.2.2 bouyer #ifdef SIOP_DEBUG_INTR 791 1.37.2.2 bouyer printf("extended message: msg 0x%x len %d\n", 792 1.37.2.2 bouyer siop_cmd->siop_tables.msg_in[2], 793 1.37.2.2 bouyer siop_cmd->siop_tables.msg_in[1]); 794 1.37.2.2 bouyer #endif 795 1.37.2.2 bouyer if (siop_cmd->siop_tables.msg_in[1] > 6) 796 1.37.2.2 bouyer printf("%s: extended message too big (%d)\n", 797 1.37.2.2 bouyer sc->sc_dev.dv_xname, 798 1.37.2.2 bouyer siop_cmd->siop_tables.msg_in[1]); 799 1.37.2.2 bouyer siop_cmd->siop_tables.t_extmsgdata.count = 800 1.37.2.2 bouyer htole32(siop_cmd->siop_tables.msg_in[1] - 1); 801 1.37.2.2 bouyer siop_table_sync(siop_cmd, 802 1.37.2.2 bouyer BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 803 1.37.2.2 bouyer CALL_SCRIPT(Ent_get_extmsgdata); 804 1.37.2.2 bouyer return 1; 805 1.37.2.2 bouyer case A_int_extmsgdata: 806 1.37.2.2 bouyer #ifdef SIOP_DEBUG_INTR 807 1.37.2.2 bouyer { 808 1.37.2.2 bouyer int i; 809 1.37.2.2 bouyer printf("extended message: 0x%x, data:", 810 1.37.2.2 bouyer siop_cmd->siop_tables.msg_in[2]); 811 1.37.2.2 bouyer for (i = 3; i < 2 + siop_cmd->siop_tables.msg_in[1]; 812 1.37.2.2 bouyer i++) 813 1.37.2.2 bouyer printf(" 0x%x", 814 1.37.2.2 bouyer siop_cmd->siop_tables.msg_in[i]); 815 1.37.2.2 bouyer printf("\n"); 816 1.37.2.2 bouyer } 817 1.37.2.2 bouyer #endif 818 1.37.2.2 bouyer if (siop_cmd->siop_tables.msg_in[2] == MSG_EXT_WDTR) { 819 1.37.2.2 bouyer switch (siop_wdtr_neg(siop_cmd)) { 820 1.37.2.2 bouyer case SIOP_NEG_MSGOUT: 821 1.37.2.2 bouyer siop_update_scntl3(sc, 822 1.37.2.2 bouyer siop_cmd->siop_target); 823 1.37.2.2 bouyer siop_table_sync(siop_cmd, 824 1.37.2.2 bouyer BUS_DMASYNC_PREREAD | 825 1.37.2.2 bouyer BUS_DMASYNC_PREWRITE); 826 1.37.2.2 bouyer CALL_SCRIPT(Ent_send_msgout); 827 1.37.2.2 bouyer return(1); 828 1.37.2.2 bouyer case SIOP_NEG_ACK: 829 1.37.2.2 bouyer siop_update_scntl3(sc, 830 1.37.2.2 bouyer siop_cmd->siop_target); 831 1.37.2.2 bouyer CALL_SCRIPT(Ent_msgin_ack); 832 1.37.2.2 bouyer return(1); 833 1.37.2.2 bouyer default: 834 1.37.2.2 bouyer panic("invalid retval from " 835 1.37.2.2 bouyer "siop_wdtr_neg()"); 836 1.37.2.2 bouyer } 837 1.37.2.2 bouyer return(1); 838 1.37.2.2 bouyer } 839 1.37.2.2 bouyer if (siop_cmd->siop_tables.msg_in[2] == MSG_EXT_SDTR) { 840 1.37.2.2 bouyer switch (siop_sdtr_neg(siop_cmd)) { 841 1.37.2.2 bouyer case SIOP_NEG_MSGOUT: 842 1.37.2.2 bouyer siop_update_scntl3(sc, 843 1.37.2.2 bouyer siop_cmd->siop_target); 844 1.37.2.2 bouyer siop_table_sync(siop_cmd, 845 1.37.2.2 bouyer BUS_DMASYNC_PREREAD | 846 1.37.2.2 bouyer BUS_DMASYNC_PREWRITE); 847 1.37.2.2 bouyer CALL_SCRIPT(Ent_send_msgout); 848 1.37.2.2 bouyer return(1); 849 1.37.2.2 bouyer case SIOP_NEG_ACK: 850 1.37.2.2 bouyer siop_update_scntl3(sc, 851 1.37.2.2 bouyer siop_cmd->siop_target); 852 1.37.2.2 bouyer CALL_SCRIPT(Ent_msgin_ack); 853 1.37.2.2 bouyer return(1); 854 1.37.2.2 bouyer default: 855 1.37.2.2 bouyer panic("invalid retval from " 856 1.37.2.2 bouyer "siop_wdtr_neg()"); 857 1.37.2.2 bouyer } 858 1.37.2.2 bouyer return(1); 859 1.37.2.2 bouyer } 860 1.37.2.2 bouyer /* send a message reject */ 861 1.37.2.2 bouyer siop_cmd->siop_tables.msg_out[0] = MSG_MESSAGE_REJECT; 862 1.37.2.2 bouyer siop_cmd->siop_tables.t_msgout.count = htole32(1); 863 1.37.2.2 bouyer siop_table_sync(siop_cmd, 864 1.37.2.2 bouyer BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 865 1.37.2.2 bouyer CALL_SCRIPT(Ent_send_msgout); 866 1.37.2.2 bouyer return 1; 867 1.37.2.2 bouyer case A_int_disc: 868 1.37.2.2 bouyer INCSTAT(siop_stat_intr_sdp); 869 1.37.2.2 bouyer offset = bus_space_read_1(sc->sc_rt, sc->sc_rh, 870 1.37.2.2 bouyer SIOP_SCRATCHA + 1); 871 1.37.2.2 bouyer #ifdef SIOP_DEBUG_DR 872 1.37.2.2 bouyer printf("disconnect offset %d\n", offset); 873 1.37.2.2 bouyer #endif 874 1.37.2.2 bouyer if (offset > SIOP_NSG) { 875 1.37.2.2 bouyer printf("%s: bad offset for disconnect (%d)\n", 876 1.37.2.2 bouyer sc->sc_dev.dv_xname, offset); 877 1.37.2.2 bouyer goto reset; 878 1.37.2.2 bouyer } 879 1.37.2.2 bouyer /* 880 1.37.2.2 bouyer * offset == SIOP_NSG may be a valid condition if 881 1.37.2.2 bouyer * we get a sdp when the xfer is done. 882 1.37.2.2 bouyer * Don't call memmove in this case. 883 1.37.2.2 bouyer */ 884 1.37.2.2 bouyer if (offset < SIOP_NSG) { 885 1.37.2.2 bouyer memmove(&siop_cmd->siop_tables.data[0], 886 1.37.2.2 bouyer &siop_cmd->siop_tables.data[offset], 887 1.37.2.2 bouyer (SIOP_NSG - offset) * sizeof(scr_table_t)); 888 1.37.2.2 bouyer siop_table_sync(siop_cmd, 889 1.37.2.2 bouyer BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 890 1.37.2.2 bouyer } 891 1.37.2.2 bouyer CALL_SCRIPT(Ent_script_sched); 892 1.37.2.2 bouyer return 1; 893 1.37.2.2 bouyer case A_int_resfail: 894 1.37.2.2 bouyer printf("reselect failed\n"); 895 1.37.2.2 bouyer CALL_SCRIPT(Ent_script_sched); 896 1.37.2.2 bouyer return 1; 897 1.37.2.2 bouyer case A_int_done: 898 1.37.2.2 bouyer if (xs == NULL) { 899 1.37.2.2 bouyer printf("%s: done without command, DSA=0x%lx\n", 900 1.37.2.2 bouyer sc->sc_dev.dv_xname, (u_long)siop_cmd->dsa); 901 1.37.2.2 bouyer siop_cmd->status = CMDST_FREE; 902 1.37.2.2 bouyer CALL_SCRIPT(Ent_script_sched); 903 1.37.2.2 bouyer return 1; 904 1.37.2.2 bouyer } 905 1.37.2.2 bouyer #ifdef SIOP_DEBUG_INTR 906 1.37.2.2 bouyer printf("done, DSA=0x%lx target id 0x%x last msg " 907 1.37.2.2 bouyer "in=0x%x status=0x%x\n", (u_long)siop_cmd->dsa, 908 1.37.2.2 bouyer le32toh(siop_cmd->siop_tables.id), 909 1.37.2.2 bouyer siop_cmd->siop_tables.msg_in[0], 910 1.37.2.2 bouyer le32toh(siop_cmd->siop_tables.status)); 911 1.37.2.2 bouyer #endif 912 1.37.2.2 bouyer INCSTAT(siop_stat_intr_done); 913 1.37.2.6 bouyer siop_cmd->status = CMDST_DONE; 914 1.37.2.2 bouyer goto end; 915 1.37.2.2 bouyer default: 916 1.37.2.2 bouyer printf("unknown irqcode %x\n", irqcode); 917 1.37.2.2 bouyer if (xs) { 918 1.37.2.2 bouyer xs->error = XS_SELTIMEOUT; 919 1.37.2.2 bouyer goto end; 920 1.37.2.2 bouyer } 921 1.37.2.2 bouyer goto reset; 922 1.37.2.2 bouyer } 923 1.37.2.2 bouyer return 1; 924 1.37.2.2 bouyer } 925 1.37.2.2 bouyer /* We just should't get there */ 926 1.37.2.2 bouyer panic("siop_intr: I shouldn't be there !"); 927 1.37.2.2 bouyer return 1; 928 1.37.2.2 bouyer end: 929 1.37.2.7 bouyer /* 930 1.37.2.7 bouyer * restart the script now if command completed properly 931 1.37.2.7 bouyer * Otherwise wait for siop_scsicmd_end(), we may need to cleanup the 932 1.37.2.7 bouyer * queue 933 1.37.2.7 bouyer */ 934 1.37.2.7 bouyer xs->status = le32toh(siop_cmd->siop_tables.status); 935 1.37.2.7 bouyer if (xs->status == SCSI_OK) 936 1.37.2.7 bouyer CALL_SCRIPT(Ent_script_sched); 937 1.37.2.7 bouyer else 938 1.37.2.7 bouyer restart = 1; 939 1.37.2.2 bouyer siop_lun->siop_tag[tag].active = NULL; 940 1.37.2.11 bouyer if (sc->sc_flags & SCF_CHAN_NOSLOT) { 941 1.37.2.11 bouyer /* a command terminated, so we have free slots now */ 942 1.37.2.11 bouyer sc->sc_flags &= ~SCF_CHAN_NOSLOT; 943 1.37.2.11 bouyer scsipi_channel_thaw(&sc->sc_chan, 1); 944 1.37.2.11 bouyer } 945 1.37.2.5 bouyer siop_scsicmd_end(siop_cmd); 946 1.37.2.7 bouyer if (freetarget && siop_target->status == TARST_PROBING) 947 1.37.2.7 bouyer siop_del_dev(sc, target, lun); 948 1.37.2.7 bouyer if (restart) 949 1.37.2.7 bouyer CALL_SCRIPT(Ent_script_sched); 950 1.37.2.11 bouyer 951 1.37.2.2 bouyer return 1; 952 1.37.2.2 bouyer } 953 1.37.2.2 bouyer 954 1.37.2.2 bouyer void 955 1.37.2.2 bouyer siop_scsicmd_end(siop_cmd) 956 1.37.2.2 bouyer struct siop_cmd *siop_cmd; 957 1.37.2.2 bouyer { 958 1.37.2.2 bouyer struct scsipi_xfer *xs = siop_cmd->xs; 959 1.37.2.2 bouyer struct siop_softc *sc = siop_cmd->siop_sc; 960 1.37.2.2 bouyer 961 1.37.2.5 bouyer switch(xs->status) { 962 1.37.2.2 bouyer case SCSI_OK: 963 1.37.2.6 bouyer xs->error = XS_NOERROR; 964 1.37.2.2 bouyer break; 965 1.37.2.2 bouyer case SCSI_BUSY: 966 1.37.2.2 bouyer xs->error = XS_BUSY; 967 1.37.2.2 bouyer break; 968 1.37.2.2 bouyer case SCSI_CHECK: 969 1.37.2.6 bouyer xs->error = XS_BUSY; 970 1.37.2.7 bouyer /* remove commands in the queue and scheduler */ 971 1.37.2.7 bouyer siop_unqueue(sc, xs->xs_periph->periph_target, 972 1.37.2.7 bouyer xs->xs_periph->periph_lun); 973 1.37.2.2 bouyer break; 974 1.37.2.2 bouyer case SCSI_QUEUE_FULL: 975 1.37.2.2 bouyer INCSTAT(siop_stat_intr_qfull); 976 1.37.2.2 bouyer #ifdef SIOP_DEBUG 977 1.37.2.2 bouyer printf("%s:%d:%d: queue full (tag %d)\n", sc->sc_dev.dv_xname, 978 1.37.2.4 bouyer xs->xs_periph->periph_target, 979 1.37.2.4 bouyer xs->xs_periph->periph_lun, siop_cmd->tag); 980 1.37.2.2 bouyer #endif 981 1.37.2.5 bouyer xs->error = XS_BUSY; 982 1.37.2.5 bouyer break; 983 1.37.2.2 bouyer case SCSI_SIOP_NOCHECK: 984 1.37.2.2 bouyer /* 985 1.37.2.2 bouyer * don't check status, xs->error is already valid 986 1.37.2.2 bouyer */ 987 1.37.2.2 bouyer break; 988 1.37.2.2 bouyer case SCSI_SIOP_NOSTATUS: 989 1.37.2.2 bouyer /* 990 1.37.2.2 bouyer * the status byte was not updated, cmd was 991 1.37.2.2 bouyer * aborted 992 1.37.2.2 bouyer */ 993 1.37.2.2 bouyer xs->error = XS_SELTIMEOUT; 994 1.37.2.2 bouyer break; 995 1.37.2.2 bouyer default: 996 1.37.2.2 bouyer xs->error = XS_DRIVER_STUFFUP; 997 1.37.2.2 bouyer } 998 1.37.2.6 bouyer if (xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT)) { 999 1.37.2.2 bouyer bus_dmamap_sync(sc->sc_dmat, siop_cmd->dmamap_data, 0, 1000 1.37.2.2 bouyer siop_cmd->dmamap_data->dm_mapsize, 1001 1.37.2.2 bouyer (xs->xs_control & XS_CTL_DATA_IN) ? 1002 1.37.2.2 bouyer BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 1003 1.37.2.2 bouyer bus_dmamap_unload(sc->sc_dmat, siop_cmd->dmamap_data); 1004 1.37.2.2 bouyer } 1005 1.37.2.2 bouyer bus_dmamap_unload(sc->sc_dmat, siop_cmd->dmamap_cmd); 1006 1.37.2.2 bouyer callout_stop(&siop_cmd->xs->xs_callout); 1007 1.37.2.2 bouyer siop_cmd->status = CMDST_FREE; 1008 1.37.2.7 bouyer TAILQ_INSERT_TAIL(&sc->free_list, siop_cmd, next); 1009 1.37.2.2 bouyer xs->resid = 0; 1010 1.37.2.5 bouyer scsipi_done (xs); 1011 1.37.2.2 bouyer } 1012 1.37.2.2 bouyer 1013 1.37.2.7 bouyer void 1014 1.37.2.7 bouyer siop_unqueue(sc, target, lun) 1015 1.37.2.7 bouyer struct siop_softc *sc; 1016 1.37.2.7 bouyer int target; 1017 1.37.2.7 bouyer int lun; 1018 1.37.2.7 bouyer { 1019 1.37.2.7 bouyer int slot, tag; 1020 1.37.2.11 bouyer struct siop_cmd *siop_cmd; 1021 1.37.2.7 bouyer struct siop_lun *siop_lun = sc->targets[target]->siop_lun[lun]; 1022 1.37.2.7 bouyer 1023 1.37.2.7 bouyer /* first make sure to read valid data */ 1024 1.37.2.7 bouyer siop_script_sync(sc, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1025 1.37.2.7 bouyer 1026 1.37.2.7 bouyer for (tag = 1; tag < SIOP_NTAG; tag++) { 1027 1.37.2.7 bouyer /* look for commands in the scheduler, not yet started */ 1028 1.37.2.7 bouyer if (siop_lun->siop_tag[tag].active == NULL) 1029 1.37.2.7 bouyer continue; 1030 1.37.2.7 bouyer siop_cmd = siop_lun->siop_tag[tag].active; 1031 1.37.2.7 bouyer for (slot = 0; slot <= sc->sc_currschedslot; slot++) { 1032 1.37.2.7 bouyer if (siop_script_read(sc, 1033 1.37.2.7 bouyer (Ent_script_sched_slot0 / 4) + slot * 2 + 1) == 1034 1.37.2.7 bouyer siop_cmd->dsa + sizeof(struct siop_xfer_common) + 1035 1.37.2.7 bouyer Ent_ldsa_select) 1036 1.37.2.7 bouyer break; 1037 1.37.2.7 bouyer } 1038 1.37.2.7 bouyer if (slot > sc->sc_currschedslot) 1039 1.37.2.7 bouyer continue; /* didn't find it */ 1040 1.37.2.7 bouyer if (siop_script_read(sc, 1041 1.37.2.7 bouyer (Ent_script_sched_slot0 / 4) + slot * 2) == 0x80000000) 1042 1.37.2.7 bouyer continue; /* already started */ 1043 1.37.2.7 bouyer /* clear the slot */ 1044 1.37.2.7 bouyer siop_script_write(sc, (Ent_script_sched_slot0 / 4) + slot * 2, 1045 1.37.2.7 bouyer 0x80000000); 1046 1.37.2.7 bouyer /* ask to requeue */ 1047 1.37.2.7 bouyer siop_cmd->xs->error = XS_REQUEUE; 1048 1.37.2.7 bouyer siop_cmd->xs->status = SCSI_SIOP_NOCHECK; 1049 1.37.2.7 bouyer siop_lun->siop_tag[tag].active = NULL; 1050 1.37.2.7 bouyer siop_scsicmd_end(siop_cmd); 1051 1.37.2.7 bouyer } 1052 1.37.2.7 bouyer /* update sc_currschedslot */ 1053 1.37.2.7 bouyer sc->sc_currschedslot = 0; 1054 1.37.2.11 bouyer for (slot = SIOP_NSLOTS - 1; slot >= 0; slot--) { 1055 1.37.2.7 bouyer if (siop_script_read(sc, 1056 1.37.2.7 bouyer (Ent_script_sched_slot0 / 4) + slot * 2) != 0x80000000) 1057 1.37.2.7 bouyer sc->sc_currschedslot = slot; 1058 1.37.2.7 bouyer } 1059 1.37.2.7 bouyer } 1060 1.37.2.7 bouyer 1061 1.37.2.2 bouyer /* 1062 1.37.2.2 bouyer * handle a rejected queue tag message: the command will run untagged, 1063 1.37.2.2 bouyer * has to adjust the reselect script. 1064 1.37.2.2 bouyer */ 1065 1.37.2.2 bouyer int 1066 1.37.2.2 bouyer siop_handle_qtag_reject(siop_cmd) 1067 1.37.2.2 bouyer struct siop_cmd *siop_cmd; 1068 1.37.2.2 bouyer { 1069 1.37.2.2 bouyer struct siop_softc *sc = siop_cmd->siop_sc; 1070 1.37.2.4 bouyer int target = siop_cmd->xs->xs_periph->periph_target; 1071 1.37.2.4 bouyer int lun = siop_cmd->xs->xs_periph->periph_lun; 1072 1.37.2.2 bouyer int tag = siop_cmd->siop_tables.msg_out[2]; 1073 1.37.2.2 bouyer struct siop_lun *siop_lun = sc->targets[target]->siop_lun[lun]; 1074 1.37.2.2 bouyer 1075 1.37.2.2 bouyer #ifdef SIOP_DEBUG 1076 1.37.2.2 bouyer printf("%s:%d:%d: tag message %d (%d) rejected (status %d)\n", 1077 1.37.2.2 bouyer sc->sc_dev.dv_xname, target, lun, tag, siop_cmd->tag, 1078 1.37.2.2 bouyer siop_cmd->status); 1079 1.37.2.2 bouyer #endif 1080 1.37.2.2 bouyer 1081 1.37.2.2 bouyer if (siop_lun->siop_tag[0].active != NULL) { 1082 1.37.2.2 bouyer printf("%s: untagged command already running for target %d " 1083 1.37.2.2 bouyer "lun %d (status %d)\n", sc->sc_dev.dv_xname, target, lun, 1084 1.37.2.2 bouyer siop_lun->siop_tag[0].active->status); 1085 1.37.2.2 bouyer return -1; 1086 1.37.2.2 bouyer } 1087 1.37.2.2 bouyer /* clear tag slot */ 1088 1.37.2.2 bouyer siop_lun->siop_tag[tag].active = NULL; 1089 1.37.2.2 bouyer /* add command to non-tagged slot */ 1090 1.37.2.2 bouyer siop_lun->siop_tag[0].active = siop_cmd; 1091 1.37.2.2 bouyer siop_cmd->tag = 0; 1092 1.37.2.2 bouyer /* adjust reselect script if there is one */ 1093 1.37.2.2 bouyer if (siop_lun->siop_tag[0].reseloff > 0) { 1094 1.37.2.2 bouyer siop_script_write(sc, 1095 1.37.2.2 bouyer siop_lun->siop_tag[0].reseloff + 1, 1096 1.37.2.2 bouyer siop_cmd->dsa + sizeof(struct siop_xfer_common) + 1097 1.37.2.2 bouyer Ent_ldsa_reload_dsa); 1098 1.37.2.8 bouyer siop_table_sync(siop_cmd, BUS_DMASYNC_PREWRITE); 1099 1.37.2.2 bouyer } 1100 1.37.2.2 bouyer return 0; 1101 1.37.2.2 bouyer } 1102 1.37.2.2 bouyer 1103 1.37.2.2 bouyer /* 1104 1.37.2.2 bouyer * handle a bus reset: reset chip, unqueue all active commands, free all 1105 1.37.2.2 bouyer * target struct and report loosage to upper layer. 1106 1.37.2.2 bouyer * As the upper layer may requeue immediatly we have to first store 1107 1.37.2.2 bouyer * all active commands in a temporary queue. 1108 1.37.2.2 bouyer */ 1109 1.37.2.2 bouyer void 1110 1.37.2.2 bouyer siop_handle_reset(sc) 1111 1.37.2.2 bouyer struct siop_softc *sc; 1112 1.37.2.2 bouyer { 1113 1.37.2.11 bouyer struct siop_cmd *siop_cmd; 1114 1.37.2.2 bouyer struct siop_lun *siop_lun; 1115 1.37.2.2 bouyer int target, lun, tag; 1116 1.37.2.2 bouyer /* 1117 1.37.2.2 bouyer * scsi bus reset. reset the chip and restart 1118 1.37.2.2 bouyer * the queue. Need to clean up all active commands 1119 1.37.2.2 bouyer */ 1120 1.37.2.2 bouyer printf("%s: scsi bus reset\n", sc->sc_dev.dv_xname); 1121 1.37.2.2 bouyer /* stop, reset and restart the chip */ 1122 1.37.2.2 bouyer siop_reset(sc); 1123 1.37.2.2 bouyer /* 1124 1.37.2.2 bouyer * Process all commands: first commmands being executed 1125 1.37.2.2 bouyer */ 1126 1.37.2.4 bouyer for (target = 0; target < sc->sc_chan.chan_ntargets; 1127 1.37.2.2 bouyer target++) { 1128 1.37.2.2 bouyer if (sc->targets[target] == NULL) 1129 1.37.2.2 bouyer continue; 1130 1.37.2.2 bouyer for (lun = 0; lun < 8; lun++) { 1131 1.37.2.2 bouyer siop_lun = sc->targets[target]->siop_lun[lun]; 1132 1.37.2.2 bouyer if (siop_lun == NULL) 1133 1.37.2.2 bouyer continue; 1134 1.37.2.2 bouyer for (tag = 0; tag < 1135 1.37.2.2 bouyer ((sc->targets[target]->flags & TARF_TAG) ? 1136 1.37.2.2 bouyer SIOP_NTAG : 1); 1137 1.37.2.2 bouyer tag++) { 1138 1.37.2.2 bouyer siop_cmd = siop_lun->siop_tag[tag].active; 1139 1.37.2.2 bouyer if (siop_cmd == NULL) 1140 1.37.2.2 bouyer continue; 1141 1.37.2.11 bouyer scsipi_printaddr(siop_cmd->xs->xs_periph); 1142 1.37.2.11 bouyer printf("command with tag id %d reset\n", tag); 1143 1.37.2.11 bouyer siop_cmd->xs->error = 1144 1.37.2.11 bouyer (siop_cmd->flags & CMDFL_TIMEOUT) ? 1145 1.37.2.11 bouyer XS_TIMEOUT : XS_RESET; 1146 1.37.2.11 bouyer siop_cmd->xs->status = SCSI_SIOP_NOCHECK; 1147 1.37.2.2 bouyer siop_lun->siop_tag[tag].active = NULL; 1148 1.37.2.11 bouyer siop_cmd->status = CMDST_DONE; 1149 1.37.2.11 bouyer siop_scsicmd_end(siop_cmd); 1150 1.37.2.2 bouyer } 1151 1.37.2.2 bouyer } 1152 1.37.2.2 bouyer sc->targets[target]->status = TARST_ASYNC; 1153 1.37.2.2 bouyer sc->targets[target]->flags &= ~TARF_ISWIDE; 1154 1.37.2.4 bouyer sc->targets[target]->period = sc->targets[target]->offset = 0; 1155 1.37.2.5 bouyer siop_update_xfer_mode(sc, target); 1156 1.37.2.2 bouyer } 1157 1.37.2.11 bouyer 1158 1.37.2.6 bouyer scsipi_async_event(&sc->sc_chan, ASYNC_EVENT_RESET, NULL); 1159 1.37.2.2 bouyer } 1160 1.37.2.2 bouyer 1161 1.37.2.4 bouyer void 1162 1.37.2.4 bouyer siop_scsipi_request(chan, req, arg) 1163 1.37.2.4 bouyer struct scsipi_channel *chan; 1164 1.37.2.4 bouyer scsipi_adapter_req_t req; 1165 1.37.2.4 bouyer void *arg; 1166 1.37.2.2 bouyer { 1167 1.37.2.4 bouyer struct scsipi_xfer *xs; 1168 1.37.2.4 bouyer struct scsipi_periph *periph; 1169 1.37.2.4 bouyer struct siop_softc *sc = (void *)chan->chan_adapter->adapt_dev; 1170 1.37.2.2 bouyer struct siop_cmd *siop_cmd; 1171 1.37.2.2 bouyer int s, error, i; 1172 1.37.2.4 bouyer int target; 1173 1.37.2.4 bouyer int lun; 1174 1.37.2.2 bouyer 1175 1.37.2.4 bouyer switch (req) { 1176 1.37.2.4 bouyer case ADAPTER_REQ_RUN_XFER: 1177 1.37.2.4 bouyer xs = arg; 1178 1.37.2.4 bouyer periph = xs->xs_periph; 1179 1.37.2.4 bouyer target = periph->periph_target; 1180 1.37.2.4 bouyer lun = periph->periph_lun; 1181 1.37.2.4 bouyer 1182 1.37.2.4 bouyer s = splbio(); 1183 1.37.2.2 bouyer #ifdef SIOP_DEBUG_SCHED 1184 1.37.2.4 bouyer printf("starting cmd for %d:%d\n", target, lun); 1185 1.37.2.2 bouyer #endif 1186 1.37.2.4 bouyer siop_cmd = TAILQ_FIRST(&sc->free_list); 1187 1.37.2.4 bouyer if (siop_cmd) { 1188 1.37.2.4 bouyer TAILQ_REMOVE(&sc->free_list, siop_cmd, next); 1189 1.37.2.4 bouyer } else { 1190 1.37.2.4 bouyer if (siop_morecbd(sc) == 0) { 1191 1.37.2.4 bouyer siop_cmd = TAILQ_FIRST(&sc->free_list); 1192 1.37.2.2 bouyer #ifdef DIAGNOSTIC 1193 1.37.2.4 bouyer if (siop_cmd == NULL) 1194 1.37.2.4 bouyer panic("siop_morecbd succeed and does nothing"); 1195 1.37.2.2 bouyer #endif 1196 1.37.2.4 bouyer TAILQ_REMOVE(&sc->free_list, siop_cmd, next); 1197 1.37.2.4 bouyer } 1198 1.37.2.4 bouyer } 1199 1.37.2.4 bouyer if (siop_cmd == NULL) { 1200 1.37.2.4 bouyer xs->error = XS_RESOURCE_SHORTAGE; 1201 1.37.2.7 bouyer scsipi_done(xs); 1202 1.37.2.4 bouyer splx(s); 1203 1.37.2.4 bouyer return; 1204 1.37.2.2 bouyer } 1205 1.37.2.2 bouyer #ifdef DIAGNOSTIC 1206 1.37.2.4 bouyer if (siop_cmd->status != CMDST_FREE) 1207 1.37.2.4 bouyer panic("siop_scsicmd: new cmd not free"); 1208 1.37.2.2 bouyer #endif 1209 1.37.2.4 bouyer if (sc->targets[target] == NULL) { 1210 1.37.2.2 bouyer #ifdef SIOP_DEBUG 1211 1.37.2.4 bouyer printf("%s: alloc siop_target for target %d\n", 1212 1.37.2.4 bouyer sc->sc_dev.dv_xname, target); 1213 1.37.2.2 bouyer #endif 1214 1.37.2.4 bouyer sc->targets[target] = 1215 1.37.2.4 bouyer malloc(sizeof(struct siop_target), 1216 1.37.2.4 bouyer M_DEVBUF, M_NOWAIT); 1217 1.37.2.4 bouyer if (sc->targets[target] == NULL) { 1218 1.37.2.4 bouyer printf("%s: can't malloc memory for " 1219 1.37.2.4 bouyer "target %d\n", sc->sc_dev.dv_xname, target); 1220 1.37.2.4 bouyer xs->error = XS_RESOURCE_SHORTAGE; 1221 1.37.2.7 bouyer scsipi_done(xs); 1222 1.37.2.4 bouyer splx(s); 1223 1.37.2.4 bouyer return; 1224 1.37.2.4 bouyer } 1225 1.37.2.4 bouyer sc->targets[target]->status = TARST_PROBING; 1226 1.37.2.4 bouyer sc->targets[target]->flags = 0; 1227 1.37.2.4 bouyer sc->targets[target]->id = 1228 1.37.2.4 bouyer sc->clock_div << 24; /* scntl3 */ 1229 1.37.2.4 bouyer sc->targets[target]->id |= target << 16; /* id */ 1230 1.37.2.4 bouyer /* sc->targets[target]->id |= 0x0 << 8; scxfer is 0 */ 1231 1.37.2.4 bouyer 1232 1.37.2.4 bouyer /* get a lun switch script */ 1233 1.37.2.4 bouyer sc->targets[target]->lunsw = siop_get_lunsw(sc); 1234 1.37.2.4 bouyer if (sc->targets[target]->lunsw == NULL) { 1235 1.37.2.4 bouyer printf("%s: can't alloc lunsw for target %d\n", 1236 1.37.2.4 bouyer sc->sc_dev.dv_xname, target); 1237 1.37.2.4 bouyer xs->error = XS_RESOURCE_SHORTAGE; 1238 1.37.2.7 bouyer scsipi_done(xs); 1239 1.37.2.4 bouyer splx(s); 1240 1.37.2.4 bouyer return; 1241 1.37.2.4 bouyer } 1242 1.37.2.4 bouyer for (i=0; i < 8; i++) 1243 1.37.2.4 bouyer sc->targets[target]->siop_lun[i] = NULL; 1244 1.37.2.4 bouyer siop_add_reselsw(sc, target); 1245 1.37.2.2 bouyer } 1246 1.37.2.2 bouyer if (sc->targets[target]->siop_lun[lun] == NULL) { 1247 1.37.2.4 bouyer sc->targets[target]->siop_lun[lun] = 1248 1.37.2.4 bouyer malloc(sizeof(struct siop_lun), M_DEVBUF, M_NOWAIT); 1249 1.37.2.4 bouyer if (sc->targets[target]->siop_lun[lun] == NULL) { 1250 1.37.2.4 bouyer printf("%s: can't alloc siop_lun for " 1251 1.37.2.4 bouyer "target %d lun %d\n", 1252 1.37.2.4 bouyer sc->sc_dev.dv_xname, target, lun); 1253 1.37.2.4 bouyer xs->error = XS_RESOURCE_SHORTAGE; 1254 1.37.2.7 bouyer scsipi_done(xs); 1255 1.37.2.4 bouyer splx(s); 1256 1.37.2.4 bouyer return; 1257 1.37.2.4 bouyer } 1258 1.37.2.4 bouyer memset(sc->targets[target]->siop_lun[lun], 0, 1259 1.37.2.4 bouyer sizeof(struct siop_lun)); 1260 1.37.2.4 bouyer } 1261 1.37.2.4 bouyer siop_cmd->siop_target = sc->targets[target]; 1262 1.37.2.4 bouyer siop_cmd->xs = xs; 1263 1.37.2.4 bouyer siop_cmd->flags = 0; 1264 1.37.2.4 bouyer siop_cmd->status = CMDST_READY; 1265 1.37.2.4 bouyer 1266 1.37.2.4 bouyer /* load the DMA maps */ 1267 1.37.2.4 bouyer error = bus_dmamap_load(sc->sc_dmat, siop_cmd->dmamap_cmd, 1268 1.37.2.4 bouyer xs->cmd, xs->cmdlen, NULL, BUS_DMA_NOWAIT); 1269 1.37.2.2 bouyer if (error) { 1270 1.37.2.10 bouyer printf("%s: unable to load cmd DMA map: %d\n", 1271 1.37.2.2 bouyer sc->sc_dev.dv_xname, error); 1272 1.37.2.2 bouyer xs->error = XS_DRIVER_STUFFUP; 1273 1.37.2.7 bouyer scsipi_done(xs); 1274 1.37.2.2 bouyer splx(s); 1275 1.37.2.4 bouyer return; 1276 1.37.2.2 bouyer } 1277 1.37.2.4 bouyer if (xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT)) { 1278 1.37.2.4 bouyer error = bus_dmamap_load(sc->sc_dmat, 1279 1.37.2.4 bouyer siop_cmd->dmamap_data, xs->data, xs->datalen, 1280 1.37.2.10 bouyer NULL, BUS_DMA_NOWAIT | BUS_DMA_STREAMING); 1281 1.37.2.4 bouyer if (error) { 1282 1.37.2.4 bouyer printf("%s: unable to load cmd DMA map: %d", 1283 1.37.2.4 bouyer sc->sc_dev.dv_xname, error); 1284 1.37.2.4 bouyer xs->error = XS_DRIVER_STUFFUP; 1285 1.37.2.7 bouyer scsipi_done(xs); 1286 1.37.2.4 bouyer bus_dmamap_unload(sc->sc_dmat, siop_cmd->dmamap_cmd); 1287 1.37.2.4 bouyer splx(s); 1288 1.37.2.4 bouyer return; 1289 1.37.2.4 bouyer } 1290 1.37.2.4 bouyer bus_dmamap_sync(sc->sc_dmat, siop_cmd->dmamap_data, 0, 1291 1.37.2.4 bouyer siop_cmd->dmamap_data->dm_mapsize, 1292 1.37.2.4 bouyer (xs->xs_control & XS_CTL_DATA_IN) ? 1293 1.37.2.4 bouyer BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); 1294 1.37.2.4 bouyer } 1295 1.37.2.4 bouyer bus_dmamap_sync(sc->sc_dmat, siop_cmd->dmamap_cmd, 0, 1296 1.37.2.4 bouyer siop_cmd->dmamap_cmd->dm_mapsize, BUS_DMASYNC_PREWRITE); 1297 1.37.2.2 bouyer 1298 1.37.2.4 bouyer siop_setuptables(siop_cmd); 1299 1.37.2.11 bouyer siop_start(sc, siop_cmd); 1300 1.37.2.4 bouyer if (xs->xs_control & XS_CTL_POLL) { 1301 1.37.2.4 bouyer /* poll for command completion */ 1302 1.37.2.4 bouyer while ((xs->xs_status & XS_STS_DONE) == 0) { 1303 1.37.2.4 bouyer delay(1000); 1304 1.37.2.4 bouyer siop_intr(sc); 1305 1.37.2.4 bouyer } 1306 1.37.2.4 bouyer } 1307 1.37.2.4 bouyer splx(s); 1308 1.37.2.4 bouyer return; 1309 1.37.2.4 bouyer 1310 1.37.2.4 bouyer case ADAPTER_REQ_GROW_RESOURCES: 1311 1.37.2.4 bouyer /* XXX Not supported. */ 1312 1.37.2.4 bouyer return; 1313 1.37.2.4 bouyer 1314 1.37.2.4 bouyer case ADAPTER_REQ_SET_XFER_MODE: 1315 1.37.2.4 bouyer { 1316 1.37.2.4 bouyer struct scsipi_xfer_mode *xm = arg; 1317 1.37.2.4 bouyer if (sc->targets[xm->xm_target] == NULL) 1318 1.37.2.4 bouyer return; 1319 1.37.2.4 bouyer s = splbio(); 1320 1.37.2.5 bouyer if (xm->xm_mode & PERIPH_CAP_TQING) 1321 1.37.2.4 bouyer sc->targets[xm->xm_target]->flags |= TARF_TAG; 1322 1.37.2.4 bouyer if ((xm->xm_mode & PERIPH_CAP_WIDE16) && 1323 1.37.2.4 bouyer (sc->features & SF_BUS_WIDE)) 1324 1.37.2.4 bouyer sc->targets[xm->xm_target]->flags |= TARF_WIDE; 1325 1.37.2.4 bouyer if (xm->xm_mode & PERIPH_CAP_SYNC) 1326 1.37.2.4 bouyer sc->targets[xm->xm_target]->flags |= TARF_SYNC; 1327 1.37.2.4 bouyer if ((xm->xm_mode & (PERIPH_CAP_SYNC | PERIPH_CAP_WIDE16)) || 1328 1.37.2.4 bouyer sc->targets[xm->xm_target]->status == TARST_PROBING) 1329 1.37.2.4 bouyer sc->targets[xm->xm_target]->status = 1330 1.37.2.4 bouyer TARST_ASYNC; 1331 1.37.2.4 bouyer 1332 1.37.2.4 bouyer for (lun = 0; lun < sc->sc_chan.chan_nluns; lun++) { 1333 1.37.2.4 bouyer if (sc->sc_chan.chan_periphs[xm->xm_target][lun]) 1334 1.37.2.4 bouyer /* allocate a lun sw entry for this device */ 1335 1.37.2.4 bouyer siop_add_dev(sc, xm->xm_target, lun); 1336 1.37.2.2 bouyer } 1337 1.37.2.4 bouyer 1338 1.37.2.2 bouyer splx(s); 1339 1.37.2.2 bouyer } 1340 1.37.2.4 bouyer } 1341 1.37.2.2 bouyer } 1342 1.37.2.2 bouyer 1343 1.37.2.11 bouyer static void 1344 1.37.2.11 bouyer siop_start(sc, siop_cmd) 1345 1.37.2.2 bouyer struct siop_softc *sc; 1346 1.37.2.11 bouyer struct siop_cmd *siop_cmd; 1347 1.37.2.2 bouyer { 1348 1.37.2.2 bouyer struct siop_lun *siop_lun; 1349 1.37.2.2 bouyer u_int32_t dsa; 1350 1.37.2.2 bouyer int timeout; 1351 1.37.2.11 bouyer int target, lun, slot; 1352 1.37.2.2 bouyer 1353 1.37.2.2 bouyer /* 1354 1.37.2.2 bouyer * first make sure to read valid data 1355 1.37.2.2 bouyer */ 1356 1.37.2.2 bouyer siop_script_sync(sc, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1357 1.37.2.2 bouyer 1358 1.37.2.2 bouyer /* 1359 1.37.2.2 bouyer * The queue management here is a bit tricky: the script always looks 1360 1.37.2.2 bouyer * at the slot from first to last, so if we always use the first 1361 1.37.2.2 bouyer * free slot commands can stay at the tail of the queue ~forever. 1362 1.37.2.2 bouyer * The algorithm used here is to restart from the head when we know 1363 1.37.2.2 bouyer * that the queue is empty, and only add commands after the last one. 1364 1.37.2.2 bouyer * When we're at the end of the queue wait for the script to clear it. 1365 1.37.2.2 bouyer * The best thing to do here would be to implement a circular queue, 1366 1.37.2.2 bouyer * but using only 53c720 features this can be "interesting". 1367 1.37.2.2 bouyer * A mid-way solution could be to implement 2 queues and swap orders. 1368 1.37.2.2 bouyer */ 1369 1.37.2.2 bouyer slot = sc->sc_currschedslot; 1370 1.37.2.2 bouyer /* 1371 1.37.2.2 bouyer * If the instruction is 0x80000000 (JUMP foo, IF FALSE) the slot is 1372 1.37.2.2 bouyer * free. As this is the last used slot, all previous slots are free, 1373 1.37.2.10 bouyer * we can restart from 0. 1374 1.37.2.2 bouyer */ 1375 1.37.2.2 bouyer if (siop_script_read(sc, (Ent_script_sched_slot0 / 4) + slot * 2) == 1376 1.37.2.2 bouyer 0x80000000) { 1377 1.37.2.10 bouyer slot = sc->sc_currschedslot = 0; 1378 1.37.2.2 bouyer } else { 1379 1.37.2.2 bouyer slot++; 1380 1.37.2.2 bouyer } 1381 1.37.2.11 bouyer target = siop_cmd->xs->xs_periph->periph_target; 1382 1.37.2.11 bouyer lun = siop_cmd->xs->xs_periph->periph_lun; 1383 1.37.2.11 bouyer siop_lun = sc->targets[target]->siop_lun[lun]; 1384 1.37.2.11 bouyer /* if non-tagged command active, panic: this shouldn't happen */ 1385 1.37.2.11 bouyer if (siop_lun->siop_tag[0].active != NULL) { 1386 1.37.2.11 bouyer panic("siop_start: tagged cmd while untagged running"); 1387 1.37.2.11 bouyer } 1388 1.37.2.5 bouyer #ifdef DIAGNOSTIC 1389 1.37.2.11 bouyer /* sanity check the tag if needed */ 1390 1.37.2.11 bouyer if (siop_cmd->flags & CMDFL_TAG) { 1391 1.37.2.11 bouyer if (siop_lun->siop_tag[siop_cmd->tag].active != NULL) 1392 1.37.2.11 bouyer panic("siop_start: tag not free"); 1393 1.37.2.11 bouyer if (siop_cmd->tag >= SIOP_NTAG) { 1394 1.37.2.11 bouyer scsipi_printaddr(siop_cmd->xs->xs_periph); 1395 1.37.2.11 bouyer printf(": tag id %d\n", siop_cmd->tag); 1396 1.37.2.11 bouyer panic("siop_start: invalid tag id"); 1397 1.37.2.2 bouyer } 1398 1.37.2.11 bouyer } 1399 1.37.2.11 bouyer #endif 1400 1.37.2.11 bouyer /* 1401 1.37.2.11 bouyer * find a free scheduler slot and load it. 1402 1.37.2.11 bouyer */ 1403 1.37.2.11 bouyer for (; slot < SIOP_NSLOTS; slot++) { 1404 1.37.2.9 bouyer /* 1405 1.37.2.11 bouyer * If cmd if 0x80000000 the slot is free 1406 1.37.2.9 bouyer */ 1407 1.37.2.11 bouyer if (siop_script_read(sc, 1408 1.37.2.11 bouyer (Ent_script_sched_slot0 / 4) + slot * 2) == 1409 1.37.2.11 bouyer 0x80000000) 1410 1.37.2.11 bouyer break; 1411 1.37.2.11 bouyer } 1412 1.37.2.11 bouyer if (slot == SIOP_NSLOTS) { 1413 1.37.2.2 bouyer /* 1414 1.37.2.11 bouyer * no more free slot, no need to continue. freeze the queue 1415 1.37.2.11 bouyer * and requeue this command. 1416 1.37.2.2 bouyer */ 1417 1.37.2.11 bouyer scsipi_channel_freeze(&sc->sc_chan, 1); 1418 1.37.2.11 bouyer sc->sc_flags |= SCF_CHAN_NOSLOT; 1419 1.37.2.11 bouyer siop_cmd->xs->error = XS_REQUEUE; 1420 1.37.2.11 bouyer siop_cmd->xs->status = SCSI_SIOP_NOCHECK; 1421 1.37.2.11 bouyer siop_scsicmd_end(siop_cmd); 1422 1.37.2.11 bouyer return; 1423 1.37.2.2 bouyer } 1424 1.37.2.11 bouyer #ifdef SIOP_DEBUG_SCHED 1425 1.37.2.11 bouyer printf("using slot %d for DSA 0x%lx\n", slot, 1426 1.37.2.11 bouyer (u_long)siop_cmd->dsa); 1427 1.37.2.11 bouyer #endif 1428 1.37.2.11 bouyer /* mark command as active */ 1429 1.37.2.11 bouyer if (siop_cmd->status == CMDST_READY) 1430 1.37.2.11 bouyer siop_cmd->status = CMDST_ACTIVE; 1431 1.37.2.11 bouyer else 1432 1.37.2.11 bouyer panic("siop_start: bad status"); 1433 1.37.2.11 bouyer siop_lun->siop_tag[siop_cmd->tag].active = siop_cmd; 1434 1.37.2.11 bouyer /* patch scripts with DSA addr */ 1435 1.37.2.11 bouyer dsa = siop_cmd->dsa; 1436 1.37.2.11 bouyer /* first reselect switch, if we have an entry */ 1437 1.37.2.11 bouyer if (siop_lun->siop_tag[siop_cmd->tag].reseloff > 0) 1438 1.37.2.11 bouyer siop_script_write(sc, 1439 1.37.2.11 bouyer siop_lun->siop_tag[siop_cmd->tag].reseloff + 1, 1440 1.37.2.11 bouyer dsa + sizeof(struct siop_xfer_common) + 1441 1.37.2.11 bouyer Ent_ldsa_reload_dsa); 1442 1.37.2.11 bouyer /* CMD script: MOVE MEMORY addr */ 1443 1.37.2.11 bouyer siop_cmd->siop_xfer->resel[E_ldsa_abs_slot_Used[0]] = 1444 1.37.2.11 bouyer htole32(sc->sc_scriptaddr + Ent_script_sched_slot0 + slot * 8); 1445 1.37.2.11 bouyer siop_table_sync(siop_cmd, BUS_DMASYNC_PREWRITE); 1446 1.37.2.11 bouyer /* scheduler slot: JUMP ldsa_select */ 1447 1.37.2.11 bouyer siop_script_write(sc, 1448 1.37.2.11 bouyer (Ent_script_sched_slot0 / 4) + slot * 2 + 1, 1449 1.37.2.11 bouyer dsa + sizeof(struct siop_xfer_common) + Ent_ldsa_select); 1450 1.37.2.11 bouyer /* handle timeout */ 1451 1.37.2.11 bouyer if ((siop_cmd->xs->xs_control & XS_CTL_POLL) == 0) { 1452 1.37.2.11 bouyer /* start exire timer */ 1453 1.37.2.11 bouyer timeout = 1454 1.37.2.11 bouyer (u_int64_t)siop_cmd->xs->timeout * (u_int64_t)hz / 1000; 1455 1.37.2.11 bouyer if (timeout == 0) 1456 1.37.2.11 bouyer timeout = 1; 1457 1.37.2.11 bouyer callout_reset( &siop_cmd->xs->xs_callout, 1458 1.37.2.11 bouyer timeout, siop_timeout, siop_cmd); 1459 1.37.2.2 bouyer } 1460 1.37.2.11 bouyer /* 1461 1.37.2.11 bouyer * Change JUMP cmd so that this slot will be handled 1462 1.37.2.11 bouyer */ 1463 1.37.2.11 bouyer siop_script_write(sc, (Ent_script_sched_slot0 / 4) + slot * 2, 1464 1.37.2.11 bouyer 0x80080000); 1465 1.37.2.11 bouyer sc->sc_currschedslot = slot; 1466 1.37.2.2 bouyer 1467 1.37.2.2 bouyer /* make sure SCRIPT processor will read valid data */ 1468 1.37.2.2 bouyer siop_script_sync(sc,BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1469 1.37.2.2 bouyer /* Signal script it has some work to do */ 1470 1.37.2.2 bouyer bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_ISTAT, ISTAT_SIGP); 1471 1.37.2.2 bouyer /* and wait for IRQ */ 1472 1.37.2.2 bouyer return; 1473 1.37.2.2 bouyer } 1474 1.37.2.2 bouyer 1475 1.37.2.2 bouyer void 1476 1.37.2.2 bouyer siop_timeout(v) 1477 1.37.2.2 bouyer void *v; 1478 1.37.2.2 bouyer { 1479 1.37.2.2 bouyer struct siop_cmd *siop_cmd = v; 1480 1.37.2.2 bouyer struct siop_softc *sc = siop_cmd->siop_sc; 1481 1.37.2.2 bouyer int s; 1482 1.37.2.2 bouyer 1483 1.37.2.4 bouyer scsipi_printaddr(siop_cmd->xs->xs_periph); 1484 1.37.2.2 bouyer printf("command timeout\n"); 1485 1.37.2.2 bouyer 1486 1.37.2.2 bouyer s = splbio(); 1487 1.37.2.2 bouyer /* reset the scsi bus */ 1488 1.37.2.2 bouyer siop_resetbus(sc); 1489 1.37.2.2 bouyer 1490 1.37.2.2 bouyer /* deactivate callout */ 1491 1.37.2.2 bouyer callout_stop(&siop_cmd->xs->xs_callout); 1492 1.37.2.2 bouyer /* mark command as being timed out; siop_intr will handle it */ 1493 1.37.2.2 bouyer /* 1494 1.37.2.2 bouyer * mark command has being timed out and just return; 1495 1.37.2.2 bouyer * the bus reset will generate an interrupt, 1496 1.37.2.2 bouyer * it will be handled in siop_intr() 1497 1.37.2.2 bouyer */ 1498 1.37.2.2 bouyer siop_cmd->flags |= CMDFL_TIMEOUT; 1499 1.37.2.2 bouyer splx(s); 1500 1.37.2.2 bouyer return; 1501 1.37.2.2 bouyer 1502 1.37.2.2 bouyer } 1503 1.37.2.2 bouyer 1504 1.37.2.2 bouyer void 1505 1.37.2.2 bouyer siop_dump_script(sc) 1506 1.37.2.2 bouyer struct siop_softc *sc; 1507 1.37.2.2 bouyer { 1508 1.37.2.2 bouyer int i; 1509 1.37.2.3 bouyer for (i = 0; i < PAGE_SIZE / 4; i += 2) { 1510 1.37.2.2 bouyer printf("0x%04x: 0x%08x 0x%08x", i * 4, 1511 1.37.2.2 bouyer le32toh(sc->sc_script[i]), le32toh(sc->sc_script[i+1])); 1512 1.37.2.2 bouyer if ((le32toh(sc->sc_script[i]) & 0xe0000000) == 0xc0000000) { 1513 1.37.2.2 bouyer i++; 1514 1.37.2.2 bouyer printf(" 0x%08x", le32toh(sc->sc_script[i+1])); 1515 1.37.2.2 bouyer } 1516 1.37.2.2 bouyer printf("\n"); 1517 1.37.2.2 bouyer } 1518 1.37.2.2 bouyer } 1519 1.37.2.2 bouyer 1520 1.37.2.2 bouyer int 1521 1.37.2.2 bouyer siop_morecbd(sc) 1522 1.37.2.2 bouyer struct siop_softc *sc; 1523 1.37.2.2 bouyer { 1524 1.37.2.2 bouyer int error, i, j; 1525 1.37.2.2 bouyer bus_dma_segment_t seg; 1526 1.37.2.2 bouyer int rseg; 1527 1.37.2.2 bouyer struct siop_cbd *newcbd; 1528 1.37.2.2 bouyer bus_addr_t dsa; 1529 1.37.2.2 bouyer u_int32_t *scr; 1530 1.37.2.2 bouyer 1531 1.37.2.2 bouyer /* allocate a new list head */ 1532 1.37.2.2 bouyer newcbd = malloc(sizeof(struct siop_cbd), M_DEVBUF, M_NOWAIT); 1533 1.37.2.2 bouyer if (newcbd == NULL) { 1534 1.37.2.2 bouyer printf("%s: can't allocate memory for command descriptors " 1535 1.37.2.2 bouyer "head\n", sc->sc_dev.dv_xname); 1536 1.37.2.2 bouyer return ENOMEM; 1537 1.37.2.2 bouyer } 1538 1.37.2.2 bouyer memset(newcbd, 0, sizeof(struct siop_cbd)); 1539 1.37.2.2 bouyer 1540 1.37.2.2 bouyer /* allocate cmd list */ 1541 1.37.2.2 bouyer newcbd->cmds = 1542 1.37.2.2 bouyer malloc(sizeof(struct siop_cmd) * SIOP_NCMDPB, M_DEVBUF, M_NOWAIT); 1543 1.37.2.2 bouyer if (newcbd->cmds == NULL) { 1544 1.37.2.2 bouyer printf("%s: can't allocate memory for command descriptors\n", 1545 1.37.2.2 bouyer sc->sc_dev.dv_xname); 1546 1.37.2.2 bouyer error = ENOMEM; 1547 1.37.2.2 bouyer goto bad3; 1548 1.37.2.2 bouyer } 1549 1.37.2.2 bouyer memset(newcbd->cmds, 0, sizeof(struct siop_cmd) * SIOP_NCMDPB); 1550 1.37.2.3 bouyer error = bus_dmamem_alloc(sc->sc_dmat, PAGE_SIZE, PAGE_SIZE, 0, &seg, 1551 1.37.2.3 bouyer 1, &rseg, BUS_DMA_NOWAIT); 1552 1.37.2.2 bouyer if (error) { 1553 1.37.2.2 bouyer printf("%s: unable to allocate cbd DMA memory, error = %d\n", 1554 1.37.2.2 bouyer sc->sc_dev.dv_xname, error); 1555 1.37.2.2 bouyer goto bad2; 1556 1.37.2.2 bouyer } 1557 1.37.2.3 bouyer error = bus_dmamem_map(sc->sc_dmat, &seg, rseg, PAGE_SIZE, 1558 1.37.2.2 bouyer (caddr_t *)&newcbd->xfers, BUS_DMA_NOWAIT|BUS_DMA_COHERENT); 1559 1.37.2.2 bouyer if (error) { 1560 1.37.2.2 bouyer printf("%s: unable to map cbd DMA memory, error = %d\n", 1561 1.37.2.2 bouyer sc->sc_dev.dv_xname, error); 1562 1.37.2.2 bouyer goto bad2; 1563 1.37.2.2 bouyer } 1564 1.37.2.3 bouyer error = bus_dmamap_create(sc->sc_dmat, PAGE_SIZE, 1, PAGE_SIZE, 0, 1565 1.37.2.2 bouyer BUS_DMA_NOWAIT, &newcbd->xferdma); 1566 1.37.2.2 bouyer if (error) { 1567 1.37.2.2 bouyer printf("%s: unable to create cbd DMA map, error = %d\n", 1568 1.37.2.2 bouyer sc->sc_dev.dv_xname, error); 1569 1.37.2.2 bouyer goto bad1; 1570 1.37.2.2 bouyer } 1571 1.37.2.2 bouyer error = bus_dmamap_load(sc->sc_dmat, newcbd->xferdma, newcbd->xfers, 1572 1.37.2.3 bouyer PAGE_SIZE, NULL, BUS_DMA_NOWAIT); 1573 1.37.2.2 bouyer if (error) { 1574 1.37.2.2 bouyer printf("%s: unable to load cbd DMA map, error = %d\n", 1575 1.37.2.2 bouyer sc->sc_dev.dv_xname, error); 1576 1.37.2.2 bouyer goto bad0; 1577 1.37.2.2 bouyer } 1578 1.37.2.2 bouyer #ifdef DEBUG 1579 1.37.2.2 bouyer printf("%s: alloc newcdb at PHY addr 0x%lx\n", sc->sc_dev.dv_xname, 1580 1.37.2.2 bouyer (unsigned long)newcbd->xferdma->dm_segs[0].ds_addr); 1581 1.37.2.2 bouyer #endif 1582 1.37.2.2 bouyer 1583 1.37.2.2 bouyer for (i = 0; i < SIOP_NCMDPB; i++) { 1584 1.37.2.2 bouyer error = bus_dmamap_create(sc->sc_dmat, MAXPHYS, SIOP_NSG, 1585 1.37.2.2 bouyer MAXPHYS, 0, BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, 1586 1.37.2.2 bouyer &newcbd->cmds[i].dmamap_data); 1587 1.37.2.2 bouyer if (error) { 1588 1.37.2.2 bouyer printf("%s: unable to create data DMA map for cbd: " 1589 1.37.2.2 bouyer "error %d\n", 1590 1.37.2.2 bouyer sc->sc_dev.dv_xname, error); 1591 1.37.2.2 bouyer goto bad0; 1592 1.37.2.2 bouyer } 1593 1.37.2.2 bouyer error = bus_dmamap_create(sc->sc_dmat, 1594 1.37.2.2 bouyer sizeof(struct scsipi_generic), 1, 1595 1.37.2.2 bouyer sizeof(struct scsipi_generic), 0, 1596 1.37.2.2 bouyer BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, 1597 1.37.2.2 bouyer &newcbd->cmds[i].dmamap_cmd); 1598 1.37.2.2 bouyer if (error) { 1599 1.37.2.2 bouyer printf("%s: unable to create cmd DMA map for cbd %d\n", 1600 1.37.2.2 bouyer sc->sc_dev.dv_xname, error); 1601 1.37.2.2 bouyer goto bad0; 1602 1.37.2.2 bouyer } 1603 1.37.2.2 bouyer newcbd->cmds[i].siop_sc = sc; 1604 1.37.2.2 bouyer newcbd->cmds[i].siop_cbdp = newcbd; 1605 1.37.2.2 bouyer newcbd->cmds[i].siop_xfer = &newcbd->xfers[i]; 1606 1.37.2.2 bouyer memset(newcbd->cmds[i].siop_xfer, 0, 1607 1.37.2.2 bouyer sizeof(struct siop_xfer)); 1608 1.37.2.2 bouyer newcbd->cmds[i].dsa = newcbd->xferdma->dm_segs[0].ds_addr + 1609 1.37.2.2 bouyer i * sizeof(struct siop_xfer); 1610 1.37.2.2 bouyer dsa = newcbd->cmds[i].dsa; 1611 1.37.2.2 bouyer newcbd->cmds[i].status = CMDST_FREE; 1612 1.37.2.2 bouyer newcbd->cmds[i].siop_tables.t_msgout.count= htole32(1); 1613 1.37.2.2 bouyer newcbd->cmds[i].siop_tables.t_msgout.addr = htole32(dsa); 1614 1.37.2.2 bouyer newcbd->cmds[i].siop_tables.t_msgin.count= htole32(1); 1615 1.37.2.2 bouyer newcbd->cmds[i].siop_tables.t_msgin.addr = htole32(dsa + 8); 1616 1.37.2.2 bouyer newcbd->cmds[i].siop_tables.t_extmsgin.count= htole32(2); 1617 1.37.2.2 bouyer newcbd->cmds[i].siop_tables.t_extmsgin.addr = htole32(dsa + 9); 1618 1.37.2.2 bouyer newcbd->cmds[i].siop_tables.t_extmsgdata.addr = 1619 1.37.2.2 bouyer htole32(dsa + 11); 1620 1.37.2.2 bouyer newcbd->cmds[i].siop_tables.t_status.count= htole32(1); 1621 1.37.2.2 bouyer newcbd->cmds[i].siop_tables.t_status.addr = htole32(dsa + 16); 1622 1.37.2.2 bouyer 1623 1.37.2.2 bouyer /* The select/reselect script */ 1624 1.37.2.2 bouyer scr = &newcbd->cmds[i].siop_xfer->resel[0]; 1625 1.37.2.2 bouyer for (j = 0; j < sizeof(load_dsa) / sizeof(load_dsa[0]); j++) 1626 1.37.2.2 bouyer scr[j] = htole32(load_dsa[j]); 1627 1.37.2.2 bouyer /* 1628 1.37.2.2 bouyer * 0x78000000 is a 'move data8 to reg'. data8 is the second 1629 1.37.2.2 bouyer * octet, reg offset is the third. 1630 1.37.2.2 bouyer */ 1631 1.37.2.2 bouyer scr[Ent_rdsa0 / 4] = 1632 1.37.2.2 bouyer htole32(0x78100000 | ((dsa & 0x000000ff) << 8)); 1633 1.37.2.2 bouyer scr[Ent_rdsa1 / 4] = 1634 1.37.2.2 bouyer htole32(0x78110000 | ( dsa & 0x0000ff00 )); 1635 1.37.2.2 bouyer scr[Ent_rdsa2 / 4] = 1636 1.37.2.2 bouyer htole32(0x78120000 | ((dsa & 0x00ff0000) >> 8)); 1637 1.37.2.2 bouyer scr[Ent_rdsa3 / 4] = 1638 1.37.2.2 bouyer htole32(0x78130000 | ((dsa & 0xff000000) >> 16)); 1639 1.37.2.2 bouyer scr[E_ldsa_abs_reselected_Used[0]] = 1640 1.37.2.2 bouyer htole32(sc->sc_scriptaddr + Ent_reselected); 1641 1.37.2.2 bouyer scr[E_ldsa_abs_reselect_Used[0]] = 1642 1.37.2.2 bouyer htole32(sc->sc_scriptaddr + Ent_reselect); 1643 1.37.2.2 bouyer scr[E_ldsa_abs_selected_Used[0]] = 1644 1.37.2.2 bouyer htole32(sc->sc_scriptaddr + Ent_selected); 1645 1.37.2.2 bouyer scr[E_ldsa_abs_data_Used[0]] = 1646 1.37.2.2 bouyer htole32(dsa + sizeof(struct siop_xfer_common) + 1647 1.37.2.2 bouyer Ent_ldsa_data); 1648 1.37.2.2 bouyer /* JUMP foo, IF FALSE - used by MOVE MEMORY to clear the slot */ 1649 1.37.2.2 bouyer scr[Ent_ldsa_data / 4] = htole32(0x80000000); 1650 1.37.2.2 bouyer TAILQ_INSERT_TAIL(&sc->free_list, &newcbd->cmds[i], next); 1651 1.37.2.2 bouyer #ifdef SIOP_DEBUG 1652 1.37.2.2 bouyer printf("tables[%d]: in=0x%x out=0x%x status=0x%x\n", i, 1653 1.37.2.2 bouyer le32toh(newcbd->cmds[i].siop_tables.t_msgin.addr), 1654 1.37.2.2 bouyer le32toh(newcbd->cmds[i].siop_tables.t_msgout.addr), 1655 1.37.2.2 bouyer le32toh(newcbd->cmds[i].siop_tables.t_status.addr)); 1656 1.37.2.2 bouyer #endif 1657 1.37.2.2 bouyer } 1658 1.37.2.2 bouyer TAILQ_INSERT_TAIL(&sc->cmds, newcbd, next); 1659 1.37.2.2 bouyer return 0; 1660 1.37.2.2 bouyer bad0: 1661 1.37.2.2 bouyer bus_dmamap_destroy(sc->sc_dmat, newcbd->xferdma); 1662 1.37.2.2 bouyer bad1: 1663 1.37.2.2 bouyer bus_dmamem_free(sc->sc_dmat, &seg, rseg); 1664 1.37.2.2 bouyer bad2: 1665 1.37.2.2 bouyer free(newcbd->cmds, M_DEVBUF); 1666 1.37.2.2 bouyer bad3: 1667 1.37.2.2 bouyer free(newcbd, M_DEVBUF); 1668 1.37.2.2 bouyer return error; 1669 1.37.2.2 bouyer } 1670 1.37.2.2 bouyer 1671 1.37.2.2 bouyer struct siop_lunsw * 1672 1.37.2.2 bouyer siop_get_lunsw(sc) 1673 1.37.2.2 bouyer struct siop_softc *sc; 1674 1.37.2.2 bouyer { 1675 1.37.2.2 bouyer struct siop_lunsw *lunsw; 1676 1.37.2.2 bouyer int i; 1677 1.37.2.2 bouyer 1678 1.37.2.2 bouyer if (sc->script_free_lo + (sizeof(lun_switch) / sizeof(lun_switch[0])) >= 1679 1.37.2.2 bouyer sc->script_free_hi) 1680 1.37.2.2 bouyer return NULL; 1681 1.37.2.2 bouyer lunsw = TAILQ_FIRST(&sc->lunsw_list); 1682 1.37.2.2 bouyer if (lunsw != NULL) { 1683 1.37.2.2 bouyer #ifdef SIOP_DEBUG 1684 1.37.2.2 bouyer printf("siop_get_lunsw got lunsw at offset %d\n", 1685 1.37.2.2 bouyer lunsw->lunsw_off); 1686 1.37.2.2 bouyer #endif 1687 1.37.2.2 bouyer TAILQ_REMOVE(&sc->lunsw_list, lunsw, next); 1688 1.37.2.2 bouyer return lunsw; 1689 1.37.2.2 bouyer } 1690 1.37.2.2 bouyer lunsw = malloc(sizeof(struct siop_lunsw), M_DEVBUF, M_NOWAIT); 1691 1.37.2.2 bouyer if (lunsw == NULL) 1692 1.37.2.2 bouyer return NULL; 1693 1.37.2.2 bouyer memset(lunsw, 0, sizeof(struct siop_lunsw)); 1694 1.37.2.2 bouyer #ifdef SIOP_DEBUG 1695 1.37.2.2 bouyer printf("allocating lunsw at offset %d\n", sc->script_free_lo); 1696 1.37.2.2 bouyer #endif 1697 1.37.2.2 bouyer if (sc->features & SF_CHIP_RAM) { 1698 1.37.2.2 bouyer bus_space_write_region_4(sc->sc_ramt, sc->sc_ramh, 1699 1.37.2.2 bouyer sc->script_free_lo * 4, lun_switch, 1700 1.37.2.2 bouyer sizeof(lun_switch) / sizeof(lun_switch[0])); 1701 1.37.2.2 bouyer bus_space_write_4(sc->sc_ramt, sc->sc_ramh, 1702 1.37.2.2 bouyer (sc->script_free_lo + E_abs_lunsw_return_Used[0]) * 4, 1703 1.37.2.2 bouyer sc->sc_scriptaddr + Ent_lunsw_return); 1704 1.37.2.2 bouyer } else { 1705 1.37.2.2 bouyer for (i = 0; i < sizeof(lun_switch) / sizeof(lun_switch[0]); 1706 1.37.2.2 bouyer i++) 1707 1.37.2.2 bouyer sc->sc_script[sc->script_free_lo + i] = 1708 1.37.2.2 bouyer htole32(lun_switch[i]); 1709 1.37.2.2 bouyer sc->sc_script[sc->script_free_lo + E_abs_lunsw_return_Used[0]] = 1710 1.37.2.2 bouyer htole32(sc->sc_scriptaddr + Ent_lunsw_return); 1711 1.37.2.2 bouyer } 1712 1.37.2.2 bouyer lunsw->lunsw_off = sc->script_free_lo; 1713 1.37.2.2 bouyer lunsw->lunsw_size = sizeof(lun_switch) / sizeof(lun_switch[0]); 1714 1.37.2.2 bouyer sc->script_free_lo += lunsw->lunsw_size; 1715 1.37.2.2 bouyer siop_script_sync(sc, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1716 1.37.2.2 bouyer return lunsw; 1717 1.37.2.2 bouyer } 1718 1.37.2.2 bouyer 1719 1.37.2.2 bouyer void 1720 1.37.2.2 bouyer siop_add_reselsw(sc, target) 1721 1.37.2.2 bouyer struct siop_softc *sc; 1722 1.37.2.2 bouyer int target; 1723 1.37.2.2 bouyer { 1724 1.37.2.2 bouyer int i; 1725 1.37.2.2 bouyer struct siop_lun *siop_lun; 1726 1.37.2.2 bouyer /* 1727 1.37.2.2 bouyer * add an entry to resel switch 1728 1.37.2.2 bouyer */ 1729 1.37.2.2 bouyer siop_script_sync(sc, BUS_DMASYNC_POSTWRITE); 1730 1.37.2.2 bouyer for (i = 0; i < 15; i++) { 1731 1.37.2.2 bouyer sc->targets[target]->reseloff = Ent_resel_targ0 / 4 + i * 2; 1732 1.37.2.2 bouyer if ((siop_script_read(sc, sc->targets[target]->reseloff) & 0xff) 1733 1.37.2.2 bouyer == 0xff) { /* it's free */ 1734 1.37.2.2 bouyer #ifdef SIOP_DEBUG 1735 1.37.2.2 bouyer printf("siop: target %d slot %d offset %d\n", 1736 1.37.2.2 bouyer target, i, sc->targets[target]->reseloff); 1737 1.37.2.2 bouyer #endif 1738 1.37.2.2 bouyer /* JUMP abs_foo, IF target | 0x80; */ 1739 1.37.2.2 bouyer siop_script_write(sc, sc->targets[target]->reseloff, 1740 1.37.2.2 bouyer 0x800c0080 | target); 1741 1.37.2.2 bouyer siop_script_write(sc, sc->targets[target]->reseloff + 1, 1742 1.37.2.2 bouyer sc->sc_scriptaddr + 1743 1.37.2.2 bouyer sc->targets[target]->lunsw->lunsw_off * 4 + 1744 1.37.2.2 bouyer Ent_lun_switch_entry); 1745 1.37.2.2 bouyer break; 1746 1.37.2.2 bouyer } 1747 1.37.2.2 bouyer } 1748 1.37.2.2 bouyer if (i == 15) /* no free slot, shouldn't happen */ 1749 1.37.2.2 bouyer panic("siop: resel switch full"); 1750 1.37.2.2 bouyer 1751 1.37.2.2 bouyer sc->sc_ntargets++; 1752 1.37.2.2 bouyer for (i = 0; i < 8; i++) { 1753 1.37.2.2 bouyer siop_lun = sc->targets[target]->siop_lun[i]; 1754 1.37.2.2 bouyer if (siop_lun == NULL) 1755 1.37.2.2 bouyer continue; 1756 1.37.2.2 bouyer if (siop_lun->reseloff > 0) { 1757 1.37.2.2 bouyer siop_lun->reseloff = 0; 1758 1.37.2.2 bouyer siop_add_dev(sc, target, i); 1759 1.37.2.2 bouyer } 1760 1.37.2.2 bouyer } 1761 1.37.2.2 bouyer siop_update_scntl3(sc, sc->targets[target]); 1762 1.37.2.2 bouyer siop_script_sync(sc, BUS_DMASYNC_PREWRITE); 1763 1.37.2.2 bouyer } 1764 1.37.2.2 bouyer 1765 1.37.2.2 bouyer void 1766 1.37.2.2 bouyer siop_update_scntl3(sc, siop_target) 1767 1.37.2.2 bouyer struct siop_softc *sc; 1768 1.37.2.2 bouyer struct siop_target *siop_target; 1769 1.37.2.2 bouyer { 1770 1.37.2.2 bouyer /* MOVE target->id >> 24 TO SCNTL3 */ 1771 1.37.2.2 bouyer siop_script_write(sc, 1772 1.37.2.2 bouyer siop_target->lunsw->lunsw_off + (Ent_restore_scntl3 / 4), 1773 1.37.2.2 bouyer 0x78030000 | ((siop_target->id >> 16) & 0x0000ff00)); 1774 1.37.2.2 bouyer /* MOVE target->id >> 8 TO SXFER */ 1775 1.37.2.2 bouyer siop_script_write(sc, 1776 1.37.2.2 bouyer siop_target->lunsw->lunsw_off + (Ent_restore_scntl3 / 4) + 2, 1777 1.37.2.2 bouyer 0x78050000 | (siop_target->id & 0x0000ff00)); 1778 1.37.2.2 bouyer siop_script_sync(sc, BUS_DMASYNC_PREWRITE); 1779 1.37.2.2 bouyer } 1780 1.37.2.2 bouyer 1781 1.37.2.2 bouyer void 1782 1.37.2.2 bouyer siop_add_dev(sc, target, lun) 1783 1.37.2.2 bouyer struct siop_softc *sc; 1784 1.37.2.2 bouyer int target; 1785 1.37.2.2 bouyer int lun; 1786 1.37.2.2 bouyer { 1787 1.37.2.2 bouyer struct siop_lunsw *lunsw; 1788 1.37.2.2 bouyer struct siop_lun *siop_lun = sc->targets[target]->siop_lun[lun]; 1789 1.37.2.2 bouyer int i, ntargets; 1790 1.37.2.2 bouyer 1791 1.37.2.2 bouyer if (siop_lun->reseloff > 0) 1792 1.37.2.2 bouyer return; 1793 1.37.2.2 bouyer lunsw = sc->targets[target]->lunsw; 1794 1.37.2.2 bouyer if ((lunsw->lunsw_off + lunsw->lunsw_size) < sc->script_free_lo) { 1795 1.37.2.2 bouyer /* 1796 1.37.2.2 bouyer * can't extend this slot. Probably not worth trying to deal 1797 1.37.2.2 bouyer * with this case 1798 1.37.2.2 bouyer */ 1799 1.37.2.2 bouyer #ifdef DEBUG 1800 1.37.2.2 bouyer printf("%s:%d:%d: can't allocate a lun sw slot\n", 1801 1.37.2.2 bouyer sc->sc_dev.dv_xname, target, lun); 1802 1.37.2.2 bouyer #endif 1803 1.37.2.2 bouyer return; 1804 1.37.2.2 bouyer } 1805 1.37.2.2 bouyer /* count how many free targets we still have to probe */ 1806 1.37.2.4 bouyer ntargets = sc->sc_chan.chan_ntargets - 1 - sc->sc_ntargets; 1807 1.37.2.2 bouyer 1808 1.37.2.2 bouyer /* 1809 1.37.2.2 bouyer * we need 8 bytes for the lun sw additionnal entry, and 1810 1.37.2.2 bouyer * eventually sizeof(tag_switch) for the tag switch entry. 1811 1.37.2.2 bouyer * Keep enouth free space for the free targets that could be 1812 1.37.2.2 bouyer * probed later. 1813 1.37.2.2 bouyer */ 1814 1.37.2.2 bouyer if (sc->script_free_lo + 2 + 1815 1.37.2.2 bouyer (ntargets * sizeof(lun_switch) / sizeof(lun_switch[0])) >= 1816 1.37.2.2 bouyer ((sc->targets[target]->flags & TARF_TAG) ? 1817 1.37.2.2 bouyer sc->script_free_hi - (sizeof(tag_switch) / sizeof(tag_switch[0])) : 1818 1.37.2.2 bouyer sc->script_free_hi)) { 1819 1.37.2.2 bouyer /* 1820 1.37.2.2 bouyer * not enouth space, probably not worth dealing with it. 1821 1.37.2.2 bouyer * We can hold 13 tagged-queuing capable devices in the 4k RAM. 1822 1.37.2.2 bouyer */ 1823 1.37.2.2 bouyer #ifdef DEBUG 1824 1.37.2.2 bouyer printf("%s:%d:%d: not enouth memory for a lun sw slot\n", 1825 1.37.2.2 bouyer sc->sc_dev.dv_xname, target, lun); 1826 1.37.2.2 bouyer #endif 1827 1.37.2.2 bouyer return; 1828 1.37.2.2 bouyer } 1829 1.37.2.2 bouyer #ifdef SIOP_DEBUG 1830 1.37.2.2 bouyer printf("%s:%d:%d: allocate lun sw entry\n", 1831 1.37.2.2 bouyer sc->sc_dev.dv_xname, target, lun); 1832 1.37.2.2 bouyer #endif 1833 1.37.2.2 bouyer /* INT int_resellun */ 1834 1.37.2.2 bouyer siop_script_write(sc, sc->script_free_lo, 0x98080000); 1835 1.37.2.2 bouyer siop_script_write(sc, sc->script_free_lo + 1, A_int_resellun); 1836 1.37.2.2 bouyer /* Now the slot entry: JUMP abs_foo, IF lun */ 1837 1.37.2.2 bouyer siop_script_write(sc, sc->script_free_lo - 2, 1838 1.37.2.2 bouyer 0x800c0000 | lun); 1839 1.37.2.2 bouyer siop_script_write(sc, sc->script_free_lo - 1, 0); 1840 1.37.2.2 bouyer siop_lun->reseloff = sc->script_free_lo - 2; 1841 1.37.2.2 bouyer lunsw->lunsw_size += 2; 1842 1.37.2.2 bouyer sc->script_free_lo += 2; 1843 1.37.2.2 bouyer if (sc->targets[target]->flags & TARF_TAG) { 1844 1.37.2.2 bouyer /* we need a tag switch */ 1845 1.37.2.2 bouyer sc->script_free_hi -= 1846 1.37.2.2 bouyer sizeof(tag_switch) / sizeof(tag_switch[0]); 1847 1.37.2.2 bouyer if (sc->features & SF_CHIP_RAM) { 1848 1.37.2.2 bouyer bus_space_write_region_4(sc->sc_ramt, sc->sc_ramh, 1849 1.37.2.2 bouyer sc->script_free_hi * 4, tag_switch, 1850 1.37.2.2 bouyer sizeof(tag_switch) / sizeof(tag_switch[0])); 1851 1.37.2.2 bouyer } else { 1852 1.37.2.2 bouyer for(i = 0; 1853 1.37.2.2 bouyer i < sizeof(tag_switch) / sizeof(tag_switch[0]); 1854 1.37.2.2 bouyer i++) { 1855 1.37.2.2 bouyer sc->sc_script[sc->script_free_hi + i] = 1856 1.37.2.2 bouyer htole32(tag_switch[i]); 1857 1.37.2.2 bouyer } 1858 1.37.2.2 bouyer } 1859 1.37.2.2 bouyer siop_script_write(sc, 1860 1.37.2.2 bouyer siop_lun->reseloff + 1, 1861 1.37.2.2 bouyer sc->sc_scriptaddr + sc->script_free_hi * 4 + 1862 1.37.2.2 bouyer Ent_tag_switch_entry); 1863 1.37.2.2 bouyer 1864 1.37.2.2 bouyer for (i = 0; i < SIOP_NTAG; i++) { 1865 1.37.2.2 bouyer siop_lun->siop_tag[i].reseloff = 1866 1.37.2.2 bouyer sc->script_free_hi + (Ent_resel_tag0 / 4) + i * 2; 1867 1.37.2.2 bouyer } 1868 1.37.2.2 bouyer } else { 1869 1.37.2.2 bouyer /* non-tag case; just work with the lun switch */ 1870 1.37.2.2 bouyer siop_lun->siop_tag[0].reseloff = 1871 1.37.2.2 bouyer sc->targets[target]->siop_lun[lun]->reseloff; 1872 1.37.2.2 bouyer } 1873 1.37.2.2 bouyer siop_script_sync(sc, BUS_DMASYNC_PREWRITE); 1874 1.37.2.2 bouyer } 1875 1.37.2.2 bouyer 1876 1.37.2.2 bouyer void 1877 1.37.2.2 bouyer siop_del_dev(sc, target, lun) 1878 1.37.2.2 bouyer struct siop_softc *sc; 1879 1.37.2.2 bouyer int target; 1880 1.37.2.2 bouyer int lun; 1881 1.37.2.2 bouyer { 1882 1.37.2.2 bouyer int i; 1883 1.37.2.2 bouyer #ifdef SIOP_DEBUG 1884 1.37.2.2 bouyer printf("%s:%d:%d: free lun sw entry\n", 1885 1.37.2.2 bouyer sc->sc_dev.dv_xname, target, lun); 1886 1.37.2.2 bouyer #endif 1887 1.37.2.2 bouyer if (sc->targets[target] == NULL) 1888 1.37.2.2 bouyer return; 1889 1.37.2.2 bouyer free(sc->targets[target]->siop_lun[lun], M_DEVBUF); 1890 1.37.2.2 bouyer sc->targets[target]->siop_lun[lun] = NULL; 1891 1.37.2.2 bouyer /* XXX compact sw entry too ? */ 1892 1.37.2.2 bouyer /* check if we can free the whole target */ 1893 1.37.2.2 bouyer for (i = 0; i < 8; i++) { 1894 1.37.2.2 bouyer if (sc->targets[target]->siop_lun[i] != NULL) 1895 1.37.2.2 bouyer return; 1896 1.37.2.2 bouyer } 1897 1.37.2.2 bouyer #ifdef SIOP_DEBUG 1898 1.37.2.2 bouyer printf("%s: free siop_target for target %d lun %d lunsw offset %d\n", 1899 1.37.2.2 bouyer sc->sc_dev.dv_xname, target, lun, 1900 1.37.2.2 bouyer sc->targets[target]->lunsw->lunsw_off); 1901 1.37.2.2 bouyer #endif 1902 1.37.2.2 bouyer /* 1903 1.37.2.2 bouyer * nothing here, free the target struct and resel 1904 1.37.2.2 bouyer * switch entry 1905 1.37.2.2 bouyer */ 1906 1.37.2.2 bouyer siop_script_write(sc, sc->targets[target]->reseloff, 0x800c00ff); 1907 1.37.2.2 bouyer siop_script_sync(sc, BUS_DMASYNC_PREWRITE); 1908 1.37.2.2 bouyer TAILQ_INSERT_TAIL(&sc->lunsw_list, sc->targets[target]->lunsw, next); 1909 1.37.2.2 bouyer free(sc->targets[target], M_DEVBUF); 1910 1.37.2.2 bouyer sc->targets[target] = NULL; 1911 1.37.2.2 bouyer sc->sc_ntargets--; 1912 1.37.2.2 bouyer } 1913 1.37.2.2 bouyer 1914 1.37.2.4 bouyer void 1915 1.37.2.4 bouyer siop_update_xfer_mode(sc, target) 1916 1.37.2.4 bouyer struct siop_softc *sc; 1917 1.37.2.4 bouyer int target; 1918 1.37.2.4 bouyer { 1919 1.37.2.4 bouyer struct siop_target *siop_target = sc->targets[target]; 1920 1.37.2.4 bouyer struct scsipi_xfer_mode xm; 1921 1.37.2.4 bouyer 1922 1.37.2.4 bouyer xm.xm_target = target; 1923 1.37.2.4 bouyer xm.xm_mode = 0; 1924 1.37.2.4 bouyer xm.xm_period = 0; 1925 1.37.2.4 bouyer xm.xm_offset = 0; 1926 1.37.2.4 bouyer 1927 1.37.2.4 bouyer if (siop_target->flags & TARF_ISWIDE) 1928 1.37.2.4 bouyer xm.xm_mode |= PERIPH_CAP_WIDE16; 1929 1.37.2.4 bouyer if (siop_target->period) { 1930 1.37.2.4 bouyer xm.xm_period = siop_target->period; 1931 1.37.2.4 bouyer xm.xm_offset = siop_target->offset; 1932 1.37.2.4 bouyer xm.xm_mode |= PERIPH_CAP_SYNC; 1933 1.37.2.4 bouyer } 1934 1.37.2.5 bouyer if (siop_target->flags & TARF_TAG) 1935 1.37.2.5 bouyer xm.xm_mode |= PERIPH_CAP_TQING; 1936 1.37.2.4 bouyer scsipi_async_event(&sc->sc_chan, ASYNC_EVENT_XFER_MODE, &xm); 1937 1.37.2.4 bouyer } 1938 1.37.2.4 bouyer 1939 1.37.2.2 bouyer #ifdef SIOP_STATS 1940 1.37.2.2 bouyer void 1941 1.37.2.2 bouyer siop_printstats() 1942 1.37.2.2 bouyer { 1943 1.37.2.2 bouyer printf("siop_stat_intr %d\n", siop_stat_intr); 1944 1.37.2.2 bouyer printf("siop_stat_intr_shortxfer %d\n", siop_stat_intr_shortxfer); 1945 1.37.2.2 bouyer printf("siop_stat_intr_xferdisc %d\n", siop_stat_intr_xferdisc); 1946 1.37.2.2 bouyer printf("siop_stat_intr_sdp %d\n", siop_stat_intr_sdp); 1947 1.37.2.2 bouyer printf("siop_stat_intr_done %d\n", siop_stat_intr_done); 1948 1.37.2.2 bouyer printf("siop_stat_intr_lunresel %d\n", siop_stat_intr_lunresel); 1949 1.37.2.2 bouyer printf("siop_stat_intr_qfull %d\n", siop_stat_intr_qfull); 1950 1.37.2.2 bouyer } 1951 1.37.2.2 bouyer #endif 1952
Indexes created Wed Oct 22 00:09:40 GMT 2025