1 /* $NetBSD: esiop.c,v 1.16 2002/05/18 16:09:43 bouyer Exp $ */ 2 3 /* 4 * Copyright (c) 2002 Manuel Bouyer. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Manuel Bouyer. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 * 31 */ 32 33 /* SYM53c7/8xx PCI-SCSI I/O Processors driver */ 34 35 #include <sys/cdefs.h> 36 __KERNEL_RCSID(0, "$NetBSD: esiop.c,v 1.16 2002/05/18 16:09:43 bouyer Exp $"); 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/device.h> 41 #include <sys/malloc.h> 42 #include <sys/buf.h> 43 #include <sys/kernel.h> 44 45 #include <uvm/uvm_extern.h> 46 47 #include <machine/endian.h> 48 #include <machine/bus.h> 49 50 #include <dev/microcode/siop/esiop.out> 51 52 #include <dev/scsipi/scsi_all.h> 53 #include <dev/scsipi/scsi_message.h> 54 #include <dev/scsipi/scsipi_all.h> 55 56 #include <dev/scsipi/scsiconf.h> 57 58 #include <dev/ic/siopreg.h> 59 #include <dev/ic/siopvar_common.h> 60 #include <dev/ic/esiopvar.h> 61 62 #include "opt_siop.h" 63 64 #ifndef DEBUG 65 #undef DEBUG 66 #endif 67 #undef SIOP_DEBUG 68 #undef SIOP_DEBUG_DR 69 #undef SIOP_DEBUG_INTR 70 #undef SIOP_DEBUG_SCHED 71 #undef DUMP_SCRIPT 72 73 #define SIOP_STATS 74 75 #ifndef SIOP_DEFAULT_TARGET 76 #define SIOP_DEFAULT_TARGET 7 77 #endif 78 79 /* number of cmd descriptors per block */ 80 #define SIOP_NCMDPB (PAGE_SIZE / sizeof(struct esiop_xfer)) 81 82 void esiop_reset __P((struct esiop_softc *)); 83 void esiop_checkdone __P((struct esiop_softc *)); 84 void esiop_handle_reset __P((struct esiop_softc *)); 85 void esiop_scsicmd_end __P((struct esiop_cmd *)); 86 void esiop_unqueue __P((struct esiop_softc *, int, int)); 87 int esiop_handle_qtag_reject __P((struct esiop_cmd *)); 88 static void esiop_start __P((struct esiop_softc *, struct esiop_cmd *)); 89 void esiop_timeout __P((void *)); 90 int esiop_scsicmd __P((struct scsipi_xfer *)); 91 void esiop_scsipi_request __P((struct scsipi_channel *, 92 scsipi_adapter_req_t, void *)); 93 void esiop_dump_script __P((struct esiop_softc *)); 94 void esiop_morecbd __P((struct esiop_softc *)); 95 void esiop_moretagtbl __P((struct esiop_softc *)); 96 void siop_add_reselsw __P((struct esiop_softc *, int)); 97 void esiop_target_register __P((struct esiop_softc *, u_int32_t)); 98 99 void esiop_update_scntl3 __P((struct esiop_softc *, 100 struct siop_common_target *)); 101 102 #ifdef SIOP_STATS 103 static int esiop_stat_intr = 0; 104 static int esiop_stat_intr_shortxfer = 0; 105 static int esiop_stat_intr_sdp = 0; 106 static int esiop_stat_intr_done = 0; 107 static int esiop_stat_intr_xferdisc = 0; 108 static int esiop_stat_intr_lunresel = 0; 109 static int esiop_stat_intr_qfull = 0; 110 void esiop_printstats __P((void)); 111 #define INCSTAT(x) x++ 112 #else 113 #define INCSTAT(x) 114 #endif 115 116 static __inline__ void esiop_script_sync __P((struct esiop_softc *, int)); 117 static __inline__ void 118 esiop_script_sync(sc, ops) 119 struct esiop_softc *sc; 120 int ops; 121 { 122 if ((sc->sc_c.features & SF_CHIP_RAM) == 0) 123 bus_dmamap_sync(sc->sc_c.sc_dmat, sc->sc_c.sc_scriptdma, 0, 124 PAGE_SIZE, ops); 125 } 126 127 static __inline__ u_int32_t esiop_script_read __P((struct esiop_softc *, u_int)); 128 static __inline__ u_int32_t 129 esiop_script_read(sc, offset) 130 struct esiop_softc *sc; 131 u_int offset; 132 { 133 if (sc->sc_c.features & SF_CHIP_RAM) { 134 return bus_space_read_4(sc->sc_c.sc_ramt, sc->sc_c.sc_ramh, 135 offset * 4); 136 } else { 137 return le32toh(sc->sc_c.sc_script[offset]); 138 } 139 } 140 141 static __inline__ void esiop_script_write __P((struct esiop_softc *, u_int, 142 u_int32_t)); 143 static __inline__ void 144 esiop_script_write(sc, offset, val) 145 struct esiop_softc *sc; 146 u_int offset; 147 u_int32_t val; 148 { 149 if (sc->sc_c.features & SF_CHIP_RAM) { 150 bus_space_write_4(sc->sc_c.sc_ramt, sc->sc_c.sc_ramh, 151 offset * 4, val); 152 } else { 153 sc->sc_c.sc_script[offset] = htole32(val); 154 } 155 } 156 157 void 158 esiop_attach(sc) 159 struct esiop_softc *sc; 160 { 161 struct esiop_dsatbl *tagtbl_donering; 162 163 if (siop_common_attach(&sc->sc_c) != 0 ) 164 return; 165 166 TAILQ_INIT(&sc->free_list); 167 TAILQ_INIT(&sc->cmds); 168 TAILQ_INIT(&sc->free_tagtbl); 169 TAILQ_INIT(&sc->tag_tblblk); 170 sc->sc_currschedslot = 0; 171 #ifdef SIOP_DEBUG 172 printf("%s: script size = %d, PHY addr=0x%x, VIRT=%p\n", 173 sc->sc_c.sc_dev.dv_xname, (int)sizeof(esiop_script), 174 (u_int32_t)sc->sc_c.sc_scriptaddr, sc->sc_c.sc_script); 175 #endif 176 177 sc->sc_c.sc_adapt.adapt_max_periph = ESIOP_NTAG; 178 sc->sc_c.sc_adapt.adapt_request = esiop_scsipi_request; 179 180 /* 181 * get space for the CMD done slot. For this we use a tag table entry. 182 * It's the same size and allows us to not waste 3/4 of a page 183 */ 184 #ifdef DIAGNOSTIC 185 if (ESIOP_NTAG != A_ndone_slots) { 186 printf("%s: size of tag DSA table different from the done" 187 "ring\n", sc->sc_c.sc_dev.dv_xname); 188 return; 189 } 190 #endif 191 esiop_moretagtbl(sc); 192 tagtbl_donering = TAILQ_FIRST(&sc->free_tagtbl); 193 if (tagtbl_donering == NULL) { 194 printf("%s: no memory for command done ring\n", 195 "ring\n", sc->sc_c.sc_dev.dv_xname); 196 return; 197 } 198 TAILQ_REMOVE(&sc->free_tagtbl, tagtbl_donering, next); 199 sc->sc_done_map = tagtbl_donering->tblblk->blkmap; 200 sc->sc_done_offset = tagtbl_donering->tbl_offset; 201 sc->sc_done_slot = &tagtbl_donering->tbl[0]; 202 203 /* Do a bus reset, so that devices fall back to narrow/async */ 204 siop_resetbus(&sc->sc_c); 205 /* 206 * siop_reset() will reset the chip, thus clearing pending interrupts 207 */ 208 esiop_reset(sc); 209 #ifdef DUMP_SCRIPT 210 esiop_dump_script(sc); 211 #endif 212 213 config_found((struct device*)sc, &sc->sc_c.sc_chan, scsiprint); 214 } 215 216 void 217 esiop_reset(sc) 218 struct esiop_softc *sc; 219 { 220 int i, j; 221 u_int32_t addr; 222 u_int32_t msgin_addr, sem_addr; 223 224 siop_common_reset(&sc->sc_c); 225 226 /* 227 * we copy the script at the beggining of RAM. Then there is 4 bytes 228 * for messages in, and 4 bytes for semaphore 229 */ 230 sc->sc_free_offset = sizeof(esiop_script) / sizeof(esiop_script[0]); 231 msgin_addr = 232 sc->sc_free_offset * sizeof(u_int32_t) + sc->sc_c.sc_scriptaddr; 233 sc->sc_free_offset += 1; 234 sc->sc_semoffset = sc->sc_free_offset; 235 sem_addr = 236 sc->sc_semoffset * sizeof(u_int32_t) + sc->sc_c.sc_scriptaddr; 237 sc->sc_free_offset += 1; 238 /* then we have the scheduler ring */ 239 sc->sc_shedoffset = sc->sc_free_offset; 240 sc->sc_free_offset += A_ncmd_slots * CMD_SLOTSIZE; 241 /* then the targets DSA table */ 242 sc->sc_target_table_offset = sc->sc_free_offset; 243 sc->sc_free_offset += sc->sc_c.sc_chan.chan_ntargets; 244 /* copy and patch the script */ 245 if (sc->sc_c.features & SF_CHIP_RAM) { 246 bus_space_write_region_4(sc->sc_c.sc_ramt, sc->sc_c.sc_ramh, 0, 247 esiop_script, 248 sizeof(esiop_script) / sizeof(esiop_script[0])); 249 for (j = 0; j < 250 (sizeof(E_tlq_offset_Used) / sizeof(E_tlq_offset_Used[0])); 251 j++) { 252 bus_space_write_4(sc->sc_c.sc_ramt, sc->sc_c.sc_ramh, 253 E_tlq_offset_Used[j] * 4, 254 sizeof(struct siop_common_xfer)); 255 } 256 for (j = 0; j < 257 (sizeof(E_abs_msgin2_Used) / sizeof(E_abs_msgin2_Used[0])); 258 j++) { 259 bus_space_write_4(sc->sc_c.sc_ramt, sc->sc_c.sc_ramh, 260 E_abs_msgin2_Used[j] * 4, msgin_addr); 261 } 262 for (j = 0; j < 263 (sizeof(E_abs_sem_Used) / sizeof(E_abs_sem_Used[0])); 264 j++) { 265 bus_space_write_4(sc->sc_c.sc_ramt, sc->sc_c.sc_ramh, 266 E_abs_sem_Used[j] * 4, sem_addr); 267 } 268 269 if (sc->sc_c.features & SF_CHIP_LED0) { 270 bus_space_write_region_4(sc->sc_c.sc_ramt, 271 sc->sc_c.sc_ramh, 272 Ent_led_on1, esiop_led_on, 273 sizeof(esiop_led_on) / sizeof(esiop_led_on[0])); 274 bus_space_write_region_4(sc->sc_c.sc_ramt, 275 sc->sc_c.sc_ramh, 276 Ent_led_on2, esiop_led_on, 277 sizeof(esiop_led_on) / sizeof(esiop_led_on[0])); 278 bus_space_write_region_4(sc->sc_c.sc_ramt, 279 sc->sc_c.sc_ramh, 280 Ent_led_off, esiop_led_off, 281 sizeof(esiop_led_off) / sizeof(esiop_led_off[0])); 282 } 283 } else { 284 for (j = 0; 285 j < (sizeof(esiop_script) / sizeof(esiop_script[0])); j++) { 286 sc->sc_c.sc_script[j] = htole32(esiop_script[j]); 287 } 288 for (j = 0; j < 289 (sizeof(E_tlq_offset_Used) / sizeof(E_tlq_offset_Used[0])); 290 j++) { 291 sc->sc_c.sc_script[E_tlq_offset_Used[j]] = 292 htole32(sizeof(struct siop_common_xfer)); 293 } 294 for (j = 0; j < 295 (sizeof(E_abs_msgin2_Used) / sizeof(E_abs_msgin2_Used[0])); 296 j++) { 297 sc->sc_c.sc_script[E_abs_msgin2_Used[j]] = 298 htole32(msgin_addr); 299 } 300 for (j = 0; j < 301 (sizeof(E_abs_sem_Used) / sizeof(E_abs_sem_Used[0])); 302 j++) { 303 sc->sc_c.sc_script[E_abs_sem_Used[j]] = 304 htole32(sem_addr); 305 } 306 307 if (sc->sc_c.features & SF_CHIP_LED0) { 308 for (j = 0; j < (sizeof(esiop_led_on) / 309 sizeof(esiop_led_on[0])); j++) 310 sc->sc_c.sc_script[ 311 Ent_led_on1 / sizeof(esiop_led_on[0]) + j 312 ] = htole32(esiop_led_on[j]); 313 for (j = 0; j < (sizeof(esiop_led_on) / 314 sizeof(esiop_led_on[0])); j++) 315 sc->sc_c.sc_script[ 316 Ent_led_on2 / sizeof(esiop_led_on[0]) + j 317 ] = htole32(esiop_led_on[j]); 318 for (j = 0; j < (sizeof(esiop_led_off) / 319 sizeof(esiop_led_off[0])); j++) 320 sc->sc_c.sc_script[ 321 Ent_led_off / sizeof(esiop_led_off[0]) + j 322 ] = htole32(esiop_led_off[j]); 323 } 324 } 325 /* get base of scheduler ring */ 326 addr = sc->sc_c.sc_scriptaddr + sc->sc_shedoffset * sizeof(u_int32_t); 327 /* init scheduler */ 328 for (i = 0; i < A_ncmd_slots; i++) { 329 esiop_script_write(sc, 330 sc->sc_shedoffset + i * CMD_SLOTSIZE, A_f_cmd_free); 331 } 332 sc->sc_currschedslot = 0; 333 bus_space_write_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_SCRATCHE, 0); 334 bus_space_write_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_SCRATCHD, addr); 335 /* 336 * 0x78000000 is a 'move data8 to reg'. data8 is the second 337 * octet, reg offset is the third. 338 */ 339 esiop_script_write(sc, Ent_cmdr0 / 4, 340 0x78640000 | ((addr & 0x000000ff) << 8)); 341 esiop_script_write(sc, Ent_cmdr1 / 4, 342 0x78650000 | ((addr & 0x0000ff00) )); 343 esiop_script_write(sc, Ent_cmdr2 / 4, 344 0x78660000 | ((addr & 0x00ff0000) >> 8)); 345 esiop_script_write(sc, Ent_cmdr3 / 4, 346 0x78670000 | ((addr & 0xff000000) >> 16)); 347 /* done ring */ 348 for (i = 0; i < A_ndone_slots; i++) 349 sc->sc_done_slot[i] = 0; 350 bus_dmamap_sync(sc->sc_c.sc_dmat, sc->sc_done_map, 351 sc->sc_done_offset, A_ndone_slots * sizeof(u_int32_t), 352 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 353 addr = sc->sc_done_map->dm_segs[0].ds_addr + sc->sc_done_offset; 354 sc->sc_currdoneslot = 0; 355 bus_space_write_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_SCRATCHE + 2, 0); 356 bus_space_write_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_SCRATCHF, addr); 357 esiop_script_write(sc, Ent_doner0 / 4, 358 0x786c0000 | ((addr & 0x000000ff) << 8)); 359 esiop_script_write(sc, Ent_doner1 / 4, 360 0x786d0000 | ((addr & 0x0000ff00) )); 361 esiop_script_write(sc, Ent_doner2 / 4, 362 0x786e0000 | ((addr & 0x00ff0000) >> 8)); 363 esiop_script_write(sc, Ent_doner3 / 4, 364 0x786f0000 | ((addr & 0xff000000) >> 16)); 365 366 /* set flags */ 367 bus_space_write_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_SCRATCHC, 0); 368 /* write pointer of base of target DSA table */ 369 addr = (sc->sc_target_table_offset * sizeof(u_int32_t)) + 370 sc->sc_c.sc_scriptaddr; 371 esiop_script_write(sc, (Ent_load_targtable / 4) + 0, 372 esiop_script_read(sc,(Ent_load_targtable / 4) + 0) | 373 ((addr & 0x000000ff) << 8)); 374 esiop_script_write(sc, (Ent_load_targtable / 4) + 2, 375 esiop_script_read(sc,(Ent_load_targtable / 4) + 2) | 376 ((addr & 0x0000ff00) )); 377 esiop_script_write(sc, (Ent_load_targtable / 4) + 4, 378 esiop_script_read(sc,(Ent_load_targtable / 4) + 4) | 379 ((addr & 0x00ff0000) >> 8)); 380 esiop_script_write(sc, (Ent_load_targtable / 4) + 6, 381 esiop_script_read(sc,(Ent_load_targtable / 4) + 6) | 382 ((addr & 0xff000000) >> 16)); 383 #ifdef SIOP_DEBUG 384 printf("%s: target table offset %d free offset %d\n", 385 sc->sc_c.sc_dev.dv_xname, sc->sc_target_table_offset, 386 sc->sc_free_offset); 387 #endif 388 389 /* register existing targets */ 390 for (i = 0; i < sc->sc_c.sc_chan.chan_ntargets; i++) { 391 if (sc->sc_c.targets[i]) 392 esiop_target_register(sc, i); 393 } 394 /* start script */ 395 if ((sc->sc_c.features & SF_CHIP_RAM) == 0) { 396 bus_dmamap_sync(sc->sc_c.sc_dmat, sc->sc_c.sc_scriptdma, 0, 397 PAGE_SIZE, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 398 } 399 bus_space_write_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_DSP, 400 sc->sc_c.sc_scriptaddr + Ent_reselect); 401 } 402 403 #if 0 404 #define CALL_SCRIPT(ent) do {\ 405 printf ("start script DSA 0x%lx DSP 0x%lx\n", \ 406 esiop_cmd->cmd_c.dsa, \ 407 sc->sc_c.sc_scriptaddr + ent); \ 408 bus_space_write_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_DSP, sc->sc_c.sc_scriptaddr + ent); \ 409 } while (0) 410 #else 411 #define CALL_SCRIPT(ent) do {\ 412 bus_space_write_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_DSP, sc->sc_c.sc_scriptaddr + ent); \ 413 } while (0) 414 #endif 415 416 int 417 esiop_intr(v) 418 void *v; 419 { 420 struct esiop_softc *sc = v; 421 struct esiop_target *esiop_target; 422 struct esiop_cmd *esiop_cmd; 423 struct esiop_lun *esiop_lun; 424 struct scsipi_xfer *xs; 425 int istat, sist, sstat1, dstat; 426 u_int32_t irqcode; 427 int need_reset = 0; 428 int offset, target, lun, tag; 429 u_int32_t tflags; 430 u_int32_t addr; 431 int freetarget = 0; 432 int slot; 433 int retval = 0; 434 435 again: 436 istat = bus_space_read_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_ISTAT); 437 if ((istat & (ISTAT_INTF | ISTAT_DIP | ISTAT_SIP)) == 0) { 438 return retval; 439 } 440 retval = 1; 441 INCSTAT(esiop_stat_intr); 442 esiop_checkdone(sc); 443 if (istat & ISTAT_INTF) { 444 bus_space_write_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 445 SIOP_ISTAT, ISTAT_INTF); 446 goto again; 447 } 448 449 if ((istat &(ISTAT_DIP | ISTAT_SIP | ISTAT_ABRT)) == 450 (ISTAT_DIP | ISTAT_ABRT)) { 451 /* clear abort */ 452 bus_space_write_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 453 SIOP_ISTAT, 0); 454 } 455 456 /* get CMD from T/L/Q */ 457 tflags = bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 458 SIOP_SCRATCHC); 459 #ifdef SIOP_DEBUG_INTR 460 printf("interrupt, istat=0x%x tflags=0x%x " 461 "DSA=0x%x DSP=0x%lx\n", istat, tflags, 462 bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_DSA), 463 (u_long)(bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 464 SIOP_DSP) - 465 sc->sc_c.sc_scriptaddr)); 466 #endif 467 target = (tflags & A_f_c_target) ? ((tflags >> 8) & 0xff) : -1; 468 if (target > sc->sc_c.sc_chan.chan_ntargets) target = -1; 469 lun = (tflags & A_f_c_lun) ? ((tflags >> 16) & 0xff) : -1; 470 if (lun > sc->sc_c.sc_chan.chan_nluns) lun = -1; 471 tag = (tflags & A_f_c_tag) ? ((tflags >> 24) & 0xff) : -1; 472 473 if (target >= 0 && lun >= 0) { 474 esiop_target = (struct esiop_target *)sc->sc_c.targets[target]; 475 if (esiop_target == NULL) { 476 printf("esiop_target (target %d) not valid\n", target); 477 goto none; 478 } 479 esiop_lun = esiop_target->esiop_lun[lun]; 480 if (esiop_lun == NULL) { 481 printf("esiop_lun (target %d lun %d) not valid\n", 482 target, lun); 483 goto none; 484 } 485 esiop_cmd = 486 (tag >= 0) ? esiop_lun->tactive[tag] : esiop_lun->active; 487 if (esiop_cmd == NULL) { 488 printf("esiop_cmd (target %d lun %d tag %d) not valid\n", 489 target, lun, tag); 490 goto none; 491 } 492 xs = esiop_cmd->cmd_c.xs; 493 #ifdef DIAGNOSTIC 494 if (esiop_cmd->cmd_c.status != CMDST_ACTIVE) { 495 printf("esiop_cmd (target %d lun %d) " 496 "not active (%d)\n", target, lun, 497 esiop_cmd->cmd_c.status); 498 goto none; 499 } 500 #endif 501 esiop_table_sync(esiop_cmd, 502 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 503 } else { 504 none: 505 xs = NULL; 506 esiop_target = NULL; 507 esiop_lun = NULL; 508 esiop_cmd = NULL; 509 } 510 if (istat & ISTAT_DIP) { 511 dstat = bus_space_read_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 512 SIOP_DSTAT); 513 if (dstat & DSTAT_ABRT) { 514 /* was probably generated by a bus reset IOCTL */ 515 if ((dstat & DSTAT_DFE) == 0) 516 siop_clearfifo(&sc->sc_c); 517 goto reset; 518 } 519 if (dstat & DSTAT_SSI) { 520 printf("single step dsp 0x%08x dsa 0x08%x\n", 521 (int)(bus_space_read_4(sc->sc_c.sc_rt, 522 sc->sc_c.sc_rh, SIOP_DSP) - 523 sc->sc_c.sc_scriptaddr), 524 bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 525 SIOP_DSA)); 526 if ((dstat & ~(DSTAT_DFE | DSTAT_SSI)) == 0 && 527 (istat & ISTAT_SIP) == 0) { 528 bus_space_write_1(sc->sc_c.sc_rt, 529 sc->sc_c.sc_rh, SIOP_DCNTL, 530 bus_space_read_1(sc->sc_c.sc_rt, 531 sc->sc_c.sc_rh, SIOP_DCNTL) | DCNTL_STD); 532 } 533 return 1; 534 } 535 536 if (dstat & ~(DSTAT_SIR | DSTAT_DFE | DSTAT_SSI)) { 537 printf("%s: DMA IRQ:", sc->sc_c.sc_dev.dv_xname); 538 if (dstat & DSTAT_IID) 539 printf(" Illegal instruction"); 540 if (dstat & DSTAT_BF) 541 printf(" bus fault"); 542 if (dstat & DSTAT_MDPE) 543 printf(" parity"); 544 if (dstat & DSTAT_DFE) 545 printf(" dma fifo empty"); 546 else 547 siop_clearfifo(&sc->sc_c); 548 printf(", DSP=0x%x DSA=0x%x: ", 549 (int)(bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 550 SIOP_DSP) - sc->sc_c.sc_scriptaddr), 551 bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_DSA)); 552 if (esiop_cmd) 553 printf("T/L/Q=%d/%d/%d last msg_in=0x%x status=0x%x\n", 554 target, lun, tag, esiop_cmd->cmd_tables->msg_in[0], 555 le32toh(esiop_cmd->cmd_tables->status)); 556 else 557 printf(" current T/L/Q invalid\n"); 558 need_reset = 1; 559 } 560 } 561 if (istat & ISTAT_SIP) { 562 if (istat & ISTAT_DIP) 563 delay(10); 564 /* 565 * Can't read sist0 & sist1 independantly, or we have to 566 * insert delay 567 */ 568 sist = bus_space_read_2(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 569 SIOP_SIST0); 570 sstat1 = bus_space_read_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 571 SIOP_SSTAT1); 572 #ifdef SIOP_DEBUG_INTR 573 printf("scsi interrupt, sist=0x%x sstat1=0x%x " 574 "DSA=0x%x DSP=0x%lx\n", sist, sstat1, 575 bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_DSA), 576 (u_long)(bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 577 SIOP_DSP) - 578 sc->sc_c.sc_scriptaddr)); 579 #endif 580 if (sist & SIST0_RST) { 581 esiop_handle_reset(sc); 582 /* no table to flush here */ 583 return 1; 584 } 585 if (sist & SIST0_SGE) { 586 if (esiop_cmd) 587 scsipi_printaddr(xs->xs_periph); 588 else 589 printf("%s:", sc->sc_c.sc_dev.dv_xname); 590 printf("scsi gross error\n"); 591 if (esiop_target) 592 esiop_target->target_c.flags &= ~TARF_DT; 593 #ifdef DEBUG 594 printf("DSA=0x%x DSP=0x%lx\n", 595 bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_DSA), 596 (u_long)(bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 597 SIOP_DSP) - 598 sc->sc_c.sc_scriptaddr)); 599 printf("SDID 0x%x SCNTL3 0x%x SXFER 0x%x SCNTL4 0x%x\n", 600 bus_space_read_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_SDID), 601 bus_space_read_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_SCNTL3), 602 bus_space_read_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_SXFER), 603 bus_space_read_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_SCNTL4)); 604 605 #endif 606 goto reset; 607 } 608 if ((sist & SIST0_MA) && need_reset == 0) { 609 if (esiop_cmd) { 610 int scratchc0; 611 dstat = bus_space_read_1(sc->sc_c.sc_rt, 612 sc->sc_c.sc_rh, SIOP_DSTAT); 613 /* 614 * first restore DSA, in case we were in a S/G 615 * operation. 616 */ 617 bus_space_write_4(sc->sc_c.sc_rt, 618 sc->sc_c.sc_rh, 619 SIOP_DSA, esiop_cmd->cmd_c.dsa); 620 scratchc0 = bus_space_read_1(sc->sc_c.sc_rt, 621 sc->sc_c.sc_rh, SIOP_SCRATCHC); 622 switch (sstat1 & SSTAT1_PHASE_MASK) { 623 case SSTAT1_PHASE_STATUS: 624 /* 625 * previous phase may be aborted for any reason 626 * ( for example, the target has less data to 627 * transfer than requested). Just go to status 628 * and the command should terminate. 629 */ 630 INCSTAT(esiop_stat_intr_shortxfer); 631 if ((dstat & DSTAT_DFE) == 0) 632 siop_clearfifo(&sc->sc_c); 633 /* no table to flush here */ 634 CALL_SCRIPT(Ent_status); 635 return 1; 636 case SSTAT1_PHASE_MSGIN: 637 /* 638 * target may be ready to disconnect 639 * Save data pointers just in case. 640 */ 641 INCSTAT(esiop_stat_intr_xferdisc); 642 if (scratchc0 & A_f_c_data) 643 siop_sdp(&esiop_cmd->cmd_c); 644 else if ((dstat & DSTAT_DFE) == 0) 645 siop_clearfifo(&sc->sc_c); 646 bus_space_write_1(sc->sc_c.sc_rt, 647 sc->sc_c.sc_rh, SIOP_SCRATCHC, 648 scratchc0 & ~A_f_c_data); 649 esiop_table_sync(esiop_cmd, 650 BUS_DMASYNC_PREREAD | 651 BUS_DMASYNC_PREWRITE); 652 CALL_SCRIPT(Ent_msgin); 653 return 1; 654 } 655 printf("%s: unexpected phase mismatch %d\n", 656 sc->sc_c.sc_dev.dv_xname, 657 sstat1 & SSTAT1_PHASE_MASK); 658 } else { 659 printf("%s: phase mismatch without command\n", 660 sc->sc_c.sc_dev.dv_xname); 661 } 662 need_reset = 1; 663 } 664 if (sist & SIST0_PAR) { 665 /* parity error, reset */ 666 if (esiop_cmd) 667 scsipi_printaddr(xs->xs_periph); 668 else 669 printf("%s:", sc->sc_c.sc_dev.dv_xname); 670 printf("parity error\n"); 671 if (esiop_target) 672 esiop_target->target_c.flags &= ~TARF_DT; 673 goto reset; 674 } 675 if ((sist & (SIST1_STO << 8)) && need_reset == 0) { 676 /* 677 * selection time out, assume there's no device here 678 * We also have to update the ring pointer ourselve 679 */ 680 slot = bus_space_read_1(sc->sc_c.sc_rt, 681 sc->sc_c.sc_rh, SIOP_SCRATCHE); 682 esiop_script_sync(sc, 683 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 684 #ifdef SIOP_DEBUG_SCHED 685 printf("sel timeout target %d, slot %d\n", target, slot); 686 #endif 687 /* 688 * mark this slot as free, and advance to next slot 689 */ 690 esiop_script_write(sc, 691 sc->sc_shedoffset + slot * CMD_SLOTSIZE, 692 A_f_cmd_free); 693 addr = bus_space_read_4(sc->sc_c.sc_rt, 694 sc->sc_c.sc_rh, SIOP_SCRATCHD); 695 if (slot < (A_ncmd_slots - 1)) { 696 bus_space_write_1(sc->sc_c.sc_rt, 697 sc->sc_c.sc_rh, SIOP_SCRATCHE, slot + 1); 698 addr = addr + sizeof(struct esiop_slot); 699 } else { 700 bus_space_write_1(sc->sc_c.sc_rt, 701 sc->sc_c.sc_rh, SIOP_SCRATCHE, 0); 702 addr = sc->sc_c.sc_scriptaddr + 703 sc->sc_shedoffset * sizeof(u_int32_t); 704 } 705 bus_space_write_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 706 SIOP_SCRATCHD, addr); 707 esiop_script_sync(sc, 708 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 709 if (esiop_cmd) { 710 esiop_cmd->cmd_c.status = CMDST_DONE; 711 xs->error = XS_SELTIMEOUT; 712 freetarget = 1; 713 goto end; 714 } else { 715 printf("%s: selection timeout without " 716 "command, target %d (sdid 0x%x), " 717 "slot %d\n", 718 sc->sc_c.sc_dev.dv_xname, target, 719 bus_space_read_1(sc->sc_c.sc_rt, 720 sc->sc_c.sc_rh, SIOP_SDID), slot); 721 need_reset = 1; 722 } 723 } 724 if (sist & SIST0_UDC) { 725 /* 726 * unexpected disconnect. Usually the target signals 727 * a fatal condition this way. Attempt to get sense. 728 */ 729 if (esiop_cmd) { 730 esiop_cmd->cmd_tables->status = 731 htole32(SCSI_CHECK); 732 goto end; 733 } 734 printf("%s: unexpected disconnect without " 735 "command\n", sc->sc_c.sc_dev.dv_xname); 736 goto reset; 737 } 738 if (sist & (SIST1_SBMC << 8)) { 739 /* SCSI bus mode change */ 740 if (siop_modechange(&sc->sc_c) == 0 || need_reset == 1) 741 goto reset; 742 if ((istat & ISTAT_DIP) && (dstat & DSTAT_SIR)) { 743 /* 744 * we have a script interrupt, it will 745 * restart the script. 746 */ 747 goto scintr; 748 } 749 /* 750 * else we have to restart it ourselve, at the 751 * interrupted instruction. 752 */ 753 bus_space_write_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 754 SIOP_DSP, 755 bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 756 SIOP_DSP) - 8); 757 return 1; 758 } 759 /* Else it's an unhandled exeption (for now). */ 760 printf("%s: unhandled scsi interrupt, sist=0x%x sstat1=0x%x " 761 "DSA=0x%x DSP=0x%x\n", sc->sc_c.sc_dev.dv_xname, sist, 762 bus_space_read_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 763 SIOP_SSTAT1), 764 bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_DSA), 765 (int)(bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 766 SIOP_DSP) - sc->sc_c.sc_scriptaddr)); 767 if (esiop_cmd) { 768 esiop_cmd->cmd_c.status = CMDST_DONE; 769 xs->error = XS_SELTIMEOUT; 770 goto end; 771 } 772 need_reset = 1; 773 } 774 if (need_reset) { 775 reset: 776 /* fatal error, reset the bus */ 777 siop_resetbus(&sc->sc_c); 778 /* no table to flush here */ 779 return 1; 780 } 781 782 scintr: 783 if ((istat & ISTAT_DIP) && (dstat & DSTAT_SIR)) { /* script interrupt */ 784 irqcode = bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 785 SIOP_DSPS); 786 #ifdef SIOP_DEBUG_INTR 787 printf("script interrupt 0x%x\n", irqcode); 788 #endif 789 /* 790 * no command, or an inactive command is only valid for a 791 * reselect interrupt 792 */ 793 if ((irqcode & 0x80) == 0) { 794 if (esiop_cmd == NULL) { 795 printf( 796 "%s: script interrupt (0x%x) with invalid DSA !!!\n", 797 sc->sc_c.sc_dev.dv_xname, irqcode); 798 goto reset; 799 } 800 if (esiop_cmd->cmd_c.status != CMDST_ACTIVE) { 801 printf("%s: command with invalid status " 802 "(IRQ code 0x%x current status %d) !\n", 803 sc->sc_c.sc_dev.dv_xname, 804 irqcode, esiop_cmd->cmd_c.status); 805 xs = NULL; 806 } 807 } 808 switch(irqcode) { 809 case A_int_err: 810 printf("error, DSP=0x%x\n", 811 (int)(bus_space_read_4(sc->sc_c.sc_rt, 812 sc->sc_c.sc_rh, SIOP_DSP) - sc->sc_c.sc_scriptaddr)); 813 if (xs) { 814 xs->error = XS_SELTIMEOUT; 815 goto end; 816 } else { 817 goto reset; 818 } 819 case A_int_msgin: 820 { 821 int msgin = bus_space_read_1(sc->sc_c.sc_rt, 822 sc->sc_c.sc_rh, SIOP_SFBR); 823 if (msgin == MSG_MESSAGE_REJECT) { 824 int msg, extmsg; 825 if (esiop_cmd->cmd_tables->msg_out[0] & 0x80) { 826 /* 827 * message was part of a identify + 828 * something else. Identify shoudl't 829 * have been rejected. 830 */ 831 msg = 832 esiop_cmd->cmd_tables->msg_out[1]; 833 extmsg = 834 esiop_cmd->cmd_tables->msg_out[3]; 835 } else { 836 msg = 837 esiop_cmd->cmd_tables->msg_out[0]; 838 extmsg = 839 esiop_cmd->cmd_tables->msg_out[2]; 840 } 841 if (msg == MSG_MESSAGE_REJECT) { 842 /* MSG_REJECT for a MSG_REJECT !*/ 843 if (xs) 844 scsipi_printaddr(xs->xs_periph); 845 else 846 printf("%s: ", 847 sc->sc_c.sc_dev.dv_xname); 848 printf("our reject message was " 849 "rejected\n"); 850 goto reset; 851 } 852 if (msg == MSG_EXTENDED && 853 extmsg == MSG_EXT_WDTR) { 854 /* WDTR rejected, initiate sync */ 855 if ((esiop_target->target_c.flags & 856 TARF_SYNC) == 0) { 857 esiop_target->target_c.status = 858 TARST_OK; 859 siop_update_xfer_mode(&sc->sc_c, 860 target); 861 /* no table to flush here */ 862 CALL_SCRIPT(Ent_msgin_ack); 863 return 1; 864 } 865 esiop_target->target_c.status = 866 TARST_SYNC_NEG; 867 siop_sdtr_msg(&esiop_cmd->cmd_c, 0, 868 sc->sc_c.st_minsync, 869 sc->sc_c.maxoff); 870 esiop_table_sync(esiop_cmd, 871 BUS_DMASYNC_PREREAD | 872 BUS_DMASYNC_PREWRITE); 873 CALL_SCRIPT(Ent_send_msgout); 874 return 1; 875 } else if (msg == MSG_EXTENDED && 876 extmsg == MSG_EXT_SDTR) { 877 /* sync rejected */ 878 esiop_target->target_c.offset = 0; 879 esiop_target->target_c.period = 0; 880 esiop_target->target_c.status = 881 TARST_OK; 882 siop_update_xfer_mode(&sc->sc_c, 883 target); 884 /* no table to flush here */ 885 CALL_SCRIPT(Ent_msgin_ack); 886 return 1; 887 } else if (msg == MSG_EXTENDED && 888 extmsg == MSG_EXT_PPR) { 889 /* PPR rejected */ 890 esiop_target->target_c.offset = 0; 891 esiop_target->target_c.period = 0; 892 esiop_target->target_c.status = 893 TARST_OK; 894 siop_update_xfer_mode(&sc->sc_c, 895 target); 896 /* no table to flush here */ 897 CALL_SCRIPT(Ent_msgin_ack); 898 return 1; 899 } else if (msg == MSG_SIMPLE_Q_TAG || 900 msg == MSG_HEAD_OF_Q_TAG || 901 msg == MSG_ORDERED_Q_TAG) { 902 if (esiop_handle_qtag_reject( 903 esiop_cmd) == -1) 904 goto reset; 905 CALL_SCRIPT(Ent_msgin_ack); 906 return 1; 907 } 908 if (xs) 909 scsipi_printaddr(xs->xs_periph); 910 else 911 printf("%s: ", 912 sc->sc_c.sc_dev.dv_xname); 913 if (msg == MSG_EXTENDED) { 914 printf("scsi message reject, extended " 915 "message sent was 0x%x\n", extmsg); 916 } else { 917 printf("scsi message reject, message " 918 "sent was 0x%x\n", msg); 919 } 920 /* no table to flush here */ 921 CALL_SCRIPT(Ent_msgin_ack); 922 return 1; 923 } 924 if (xs) 925 scsipi_printaddr(xs->xs_periph); 926 else 927 printf("%s: ", sc->sc_c.sc_dev.dv_xname); 928 printf("unhandled message 0x%x\n", 929 esiop_cmd->cmd_tables->msg_in[0]); 930 esiop_cmd->cmd_tables->msg_out[0] = MSG_MESSAGE_REJECT; 931 esiop_cmd->cmd_tables->t_msgout.count= htole32(1); 932 esiop_table_sync(esiop_cmd, 933 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 934 CALL_SCRIPT(Ent_send_msgout); 935 return 1; 936 } 937 case A_int_extmsgin: 938 #ifdef SIOP_DEBUG_INTR 939 printf("extended message: msg 0x%x len %d\n", 940 esiop_cmd->cmd_tables->msg_in[2], 941 esiop_cmd->cmd_tables->msg_in[1]); 942 #endif 943 if (esiop_cmd->cmd_tables->msg_in[1] > 944 sizeof(esiop_cmd->cmd_tables->msg_in) - 2) 945 printf("%s: extended message too big (%d)\n", 946 sc->sc_c.sc_dev.dv_xname, 947 esiop_cmd->cmd_tables->msg_in[1]); 948 esiop_cmd->cmd_tables->t_extmsgdata.count = 949 htole32(esiop_cmd->cmd_tables->msg_in[1] - 1); 950 esiop_table_sync(esiop_cmd, 951 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 952 CALL_SCRIPT(Ent_get_extmsgdata); 953 return 1; 954 case A_int_extmsgdata: 955 #ifdef SIOP_DEBUG_INTR 956 { 957 int i; 958 printf("extended message: 0x%x, data:", 959 esiop_cmd->cmd_tables->msg_in[2]); 960 for (i = 3; i < 2 + esiop_cmd->cmd_tables->msg_in[1]; 961 i++) 962 printf(" 0x%x", 963 esiop_cmd->cmd_tables->msg_in[i]); 964 printf("\n"); 965 } 966 #endif 967 if (esiop_cmd->cmd_tables->msg_in[2] == MSG_EXT_PPR) { 968 switch (siop_ppr_neg(&esiop_cmd->cmd_c)) { 969 case SIOP_NEG_MSGOUT: 970 esiop_update_scntl3(sc, 971 esiop_cmd->cmd_c.siop_target); 972 esiop_table_sync(esiop_cmd, 973 BUS_DMASYNC_PREREAD | 974 BUS_DMASYNC_PREWRITE); 975 CALL_SCRIPT(Ent_send_msgout); 976 return 1; 977 case SIOP_NEG_ACK: 978 esiop_update_scntl3(sc, 979 esiop_cmd->cmd_c.siop_target); 980 CALL_SCRIPT(Ent_msgin_ack); 981 return 1; 982 default: 983 panic("invalid retval from " 984 "siop_wdtr_neg()"); 985 } 986 return 1; 987 } 988 if (esiop_cmd->cmd_tables->msg_in[2] == MSG_EXT_WDTR) { 989 switch (siop_wdtr_neg(&esiop_cmd->cmd_c)) { 990 case SIOP_NEG_MSGOUT: 991 esiop_update_scntl3(sc, 992 esiop_cmd->cmd_c.siop_target); 993 esiop_table_sync(esiop_cmd, 994 BUS_DMASYNC_PREREAD | 995 BUS_DMASYNC_PREWRITE); 996 CALL_SCRIPT(Ent_send_msgout); 997 return 1; 998 case SIOP_NEG_ACK: 999 esiop_update_scntl3(sc, 1000 esiop_cmd->cmd_c.siop_target); 1001 CALL_SCRIPT(Ent_msgin_ack); 1002 return 1; 1003 default: 1004 panic("invalid retval from " 1005 "siop_wdtr_neg()"); 1006 } 1007 return 1; 1008 } 1009 if (esiop_cmd->cmd_tables->msg_in[2] == MSG_EXT_SDTR) { 1010 switch (siop_sdtr_neg(&esiop_cmd->cmd_c)) { 1011 case SIOP_NEG_MSGOUT: 1012 esiop_update_scntl3(sc, 1013 esiop_cmd->cmd_c.siop_target); 1014 esiop_table_sync(esiop_cmd, 1015 BUS_DMASYNC_PREREAD | 1016 BUS_DMASYNC_PREWRITE); 1017 CALL_SCRIPT(Ent_send_msgout); 1018 return 1; 1019 case SIOP_NEG_ACK: 1020 esiop_update_scntl3(sc, 1021 esiop_cmd->cmd_c.siop_target); 1022 CALL_SCRIPT(Ent_msgin_ack); 1023 return 1; 1024 default: 1025 panic("invalid retval from " 1026 "siop_wdtr_neg()"); 1027 } 1028 return 1; 1029 } 1030 /* send a message reject */ 1031 esiop_cmd->cmd_tables->msg_out[0] = MSG_MESSAGE_REJECT; 1032 esiop_cmd->cmd_tables->t_msgout.count = htole32(1); 1033 esiop_table_sync(esiop_cmd, 1034 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1035 CALL_SCRIPT(Ent_send_msgout); 1036 return 1; 1037 case A_int_disc: 1038 INCSTAT(esiop_stat_intr_sdp); 1039 offset = bus_space_read_1(sc->sc_c.sc_rt, 1040 sc->sc_c.sc_rh, SIOP_SCRATCHA + 1); 1041 #ifdef SIOP_DEBUG_DR 1042 printf("disconnect offset %d\n", offset); 1043 #endif 1044 if (offset > SIOP_NSG) { 1045 printf("%s: bad offset for disconnect (%d)\n", 1046 sc->sc_c.sc_dev.dv_xname, offset); 1047 goto reset; 1048 } 1049 /* 1050 * offset == SIOP_NSG may be a valid condition if 1051 * we get a sdp when the xfer is done. 1052 * Don't call memmove in this case. 1053 */ 1054 if (offset < SIOP_NSG) { 1055 memmove(&esiop_cmd->cmd_tables->data[0], 1056 &esiop_cmd->cmd_tables->data[offset], 1057 (SIOP_NSG - offset) * sizeof(scr_table_t)); 1058 esiop_table_sync(esiop_cmd, 1059 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1060 } 1061 CALL_SCRIPT(Ent_script_sched); 1062 return 1; 1063 case A_int_resfail: 1064 printf("reselect failed\n"); 1065 CALL_SCRIPT(Ent_script_sched); 1066 return 1; 1067 case A_int_done: 1068 if (xs == NULL) { 1069 printf("%s: done without command\n", 1070 sc->sc_c.sc_dev.dv_xname); 1071 CALL_SCRIPT(Ent_script_sched); 1072 return 1; 1073 } 1074 #ifdef SIOP_DEBUG_INTR 1075 printf("done, DSA=0x%lx target id 0x%x last msg " 1076 "in=0x%x status=0x%x\n", (u_long)esiop_cmd->cmd_c.dsa, 1077 le32toh(esiop_cmd->cmd_tables->id), 1078 esiop_cmd->cmd_tables->msg_in[0], 1079 le32toh(esiop_cmd->cmd_tables->status)); 1080 #endif 1081 INCSTAT(esiop_stat_intr_done); 1082 esiop_cmd->cmd_c.status = CMDST_DONE; 1083 goto end; 1084 default: 1085 printf("unknown irqcode %x\n", irqcode); 1086 if (xs) { 1087 xs->error = XS_SELTIMEOUT; 1088 goto end; 1089 } 1090 goto reset; 1091 } 1092 return 1; 1093 } 1094 /* We just should't get there */ 1095 panic("siop_intr: I shouldn't be there !"); 1096 1097 end: 1098 /* 1099 * restart the script now if command completed properly 1100 * Otherwise wait for siop_scsicmd_end(), we may need to cleanup the 1101 * queue 1102 */ 1103 xs->status = le32toh(esiop_cmd->cmd_tables->status); 1104 #ifdef SIOP_DEBUG_INTR 1105 printf("esiop_intr end: status %d\n", xs->status); 1106 #endif 1107 if (tag >= 0) 1108 esiop_lun->tactive[tag] = NULL; 1109 else 1110 esiop_lun->active = NULL; 1111 esiop_scsicmd_end(esiop_cmd); 1112 if (freetarget && esiop_target->target_c.status == TARST_PROBING) 1113 esiop_del_dev(sc, target, lun); 1114 CALL_SCRIPT(Ent_script_sched); 1115 return 1; 1116 } 1117 1118 void 1119 esiop_scsicmd_end(esiop_cmd) 1120 struct esiop_cmd *esiop_cmd; 1121 { 1122 struct scsipi_xfer *xs = esiop_cmd->cmd_c.xs; 1123 struct esiop_softc *sc = (struct esiop_softc *)esiop_cmd->cmd_c.siop_sc; 1124 1125 switch(xs->status) { 1126 case SCSI_OK: 1127 xs->error = XS_NOERROR; 1128 break; 1129 case SCSI_BUSY: 1130 xs->error = XS_BUSY; 1131 break; 1132 case SCSI_CHECK: 1133 xs->error = XS_BUSY; 1134 /* remove commands in the queue and scheduler */ 1135 esiop_unqueue(sc, xs->xs_periph->periph_target, 1136 xs->xs_periph->periph_lun); 1137 break; 1138 case SCSI_QUEUE_FULL: 1139 INCSTAT(esiop_stat_intr_qfull); 1140 #ifdef SIOP_DEBUG 1141 printf("%s:%d:%d: queue full (tag %d)\n", 1142 sc->sc_c.sc_dev.dv_xname, 1143 xs->xs_periph->periph_target, 1144 xs->xs_periph->periph_lun, esiop_cmd->cmd_c.tag); 1145 #endif 1146 xs->error = XS_BUSY; 1147 break; 1148 case SCSI_SIOP_NOCHECK: 1149 /* 1150 * don't check status, xs->error is already valid 1151 */ 1152 break; 1153 case SCSI_SIOP_NOSTATUS: 1154 /* 1155 * the status byte was not updated, cmd was 1156 * aborted 1157 */ 1158 xs->error = XS_SELTIMEOUT; 1159 break; 1160 default: 1161 scsipi_printaddr(xs->xs_periph); 1162 printf("invalid status code %d\n", xs->status); 1163 xs->error = XS_DRIVER_STUFFUP; 1164 } 1165 if (xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT)) { 1166 bus_dmamap_sync(sc->sc_c.sc_dmat, 1167 esiop_cmd->cmd_c.dmamap_data, 0, 1168 esiop_cmd->cmd_c.dmamap_data->dm_mapsize, 1169 (xs->xs_control & XS_CTL_DATA_IN) ? 1170 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 1171 bus_dmamap_unload(sc->sc_c.sc_dmat, 1172 esiop_cmd->cmd_c.dmamap_data); 1173 } 1174 bus_dmamap_unload(sc->sc_c.sc_dmat, esiop_cmd->cmd_c.dmamap_cmd); 1175 callout_stop(&esiop_cmd->cmd_c.xs->xs_callout); 1176 esiop_cmd->cmd_c.status = CMDST_FREE; 1177 TAILQ_INSERT_TAIL(&sc->free_list, esiop_cmd, next); 1178 xs->resid = 0; 1179 scsipi_done (xs); 1180 } 1181 1182 void 1183 esiop_checkdone(sc) 1184 struct esiop_softc *sc; 1185 { 1186 int target, lun, tag; 1187 struct esiop_target *esiop_target; 1188 struct esiop_lun *esiop_lun; 1189 struct esiop_cmd *esiop_cmd; 1190 u_int32_t slot; 1191 int needsync = 0; 1192 int status; 1193 u_int32_t sem; 1194 1195 esiop_script_sync(sc, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1196 sem = esiop_script_read(sc, sc->sc_semoffset); 1197 esiop_script_write(sc, sc->sc_semoffset, sem & ~A_sem_done); 1198 if ((sc->sc_flags & SCF_CHAN_NOSLOT) && (sem & A_sem_start)) { 1199 /* 1200 * at last one command have been started, 1201 * so we should have free slots now 1202 */ 1203 sc->sc_flags &= ~SCF_CHAN_NOSLOT; 1204 scsipi_channel_thaw(&sc->sc_c.sc_chan, 1); 1205 } 1206 esiop_script_sync(sc, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1207 1208 if ((sem & A_sem_done) == 0) { 1209 /* no pending done command */ 1210 return; 1211 } 1212 1213 bus_dmamap_sync(sc->sc_c.sc_dmat, sc->sc_done_map, 1214 sc->sc_done_offset, A_ndone_slots * sizeof(u_int32_t), 1215 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1216 next: 1217 if (sc->sc_done_slot[sc->sc_currdoneslot] == 0) { 1218 if (needsync) 1219 bus_dmamap_sync(sc->sc_c.sc_dmat, sc->sc_done_map, 1220 sc->sc_done_offset, 1221 A_ndone_slots * sizeof(u_int32_t), 1222 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1223 return; 1224 } 1225 1226 needsync = 1; 1227 1228 slot = htole32(sc->sc_done_slot[sc->sc_currdoneslot]); 1229 sc->sc_done_slot[sc->sc_currdoneslot] = 0; 1230 sc->sc_currdoneslot += 1; 1231 if (sc->sc_currdoneslot == A_ndone_slots) 1232 sc->sc_currdoneslot = 0; 1233 1234 target = (slot & A_f_c_target) ? (slot >> 8) & 0xff : -1; 1235 lun = (slot & A_f_c_lun) ? (slot >> 16) & 0xff : -1; 1236 tag = (slot & A_f_c_tag) ? (slot >> 24) & 0xff : -1; 1237 1238 esiop_target = (target >= 0) ? 1239 (struct esiop_target *)sc->sc_c.targets[target] : NULL; 1240 if (esiop_target == NULL) { 1241 printf("esiop_target (target %d) not valid\n", target); 1242 goto next; 1243 } 1244 esiop_lun = (lun >= 0) ? esiop_target->esiop_lun[lun] : NULL; 1245 if (esiop_lun == NULL) { 1246 printf("esiop_lun (target %d lun %d) not valid\n", 1247 target, lun); 1248 goto next; 1249 } 1250 esiop_cmd = (tag >= 0) ? esiop_lun->tactive[tag] : esiop_lun->active; 1251 if (esiop_cmd == NULL) { 1252 printf("esiop_cmd (target %d lun %d tag %d) not valid\n", 1253 target, lun, tag); 1254 goto next; 1255 } 1256 1257 esiop_table_sync(esiop_cmd, 1258 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1259 status = le32toh(esiop_cmd->cmd_tables->status); 1260 #ifdef DIAGNOSTIC 1261 if (status != SCSI_OK) { 1262 printf("command for T/L/Q %d/%d/%d status %d\n", 1263 target, lun, tag, status); 1264 goto next; 1265 } 1266 1267 #endif 1268 /* Ok, this command has been handled */ 1269 esiop_cmd->cmd_c.xs->status = status; 1270 if (tag >= 0) 1271 esiop_lun->tactive[tag] = NULL; 1272 else 1273 esiop_lun->active = NULL; 1274 esiop_scsicmd_end(esiop_cmd); 1275 goto next; 1276 } 1277 1278 void 1279 esiop_unqueue(sc, target, lun) 1280 struct esiop_softc *sc; 1281 int target; 1282 int lun; 1283 { 1284 int slot, tag; 1285 u_int32_t slotdsa; 1286 struct esiop_cmd *esiop_cmd; 1287 struct esiop_lun *esiop_lun = 1288 ((struct esiop_target *)sc->sc_c.targets[target])->esiop_lun[lun]; 1289 1290 /* first make sure to read valid data */ 1291 esiop_script_sync(sc, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1292 1293 for (tag = 0; tag < ESIOP_NTAG; tag++) { 1294 /* look for commands in the scheduler, not yet started */ 1295 if (esiop_lun->tactive[tag] == NULL) 1296 continue; 1297 esiop_cmd = esiop_lun->tactive[tag]; 1298 for (slot = 0; slot < A_ncmd_slots; slot++) { 1299 slotdsa = esiop_script_read(sc, 1300 sc->sc_shedoffset + slot * CMD_SLOTSIZE); 1301 /* if the slot has any flag, it won't match the DSA */ 1302 if (slotdsa == esiop_cmd->cmd_c.dsa) { /* found it */ 1303 /* Mark this slot as ignore */ 1304 esiop_script_write(sc, 1305 sc->sc_shedoffset + slot * CMD_SLOTSIZE, 1306 esiop_cmd->cmd_c.dsa | A_f_cmd_ignore); 1307 /* ask to requeue */ 1308 esiop_cmd->cmd_c.xs->error = XS_REQUEUE; 1309 esiop_cmd->cmd_c.xs->status = SCSI_SIOP_NOCHECK; 1310 esiop_lun->tactive[tag] = NULL; 1311 esiop_scsicmd_end(esiop_cmd); 1312 break; 1313 } 1314 } 1315 } 1316 esiop_script_sync(sc, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1317 } 1318 1319 /* 1320 * handle a rejected queue tag message: the command will run untagged, 1321 * has to adjust the reselect script. 1322 */ 1323 1324 1325 int 1326 esiop_handle_qtag_reject(esiop_cmd) 1327 struct esiop_cmd *esiop_cmd; 1328 { 1329 struct esiop_softc *sc = (struct esiop_softc *)esiop_cmd->cmd_c.siop_sc; 1330 int target = esiop_cmd->cmd_c.xs->xs_periph->periph_target; 1331 int lun = esiop_cmd->cmd_c.xs->xs_periph->periph_lun; 1332 int tag = esiop_cmd->cmd_tables->msg_out[2]; 1333 struct esiop_target *esiop_target = 1334 (struct esiop_target*)sc->sc_c.targets[target]; 1335 struct esiop_lun *esiop_lun = esiop_target->esiop_lun[lun]; 1336 1337 #ifdef SIOP_DEBUG 1338 printf("%s:%d:%d: tag message %d (%d) rejected (status %d)\n", 1339 sc->sc_c.sc_dev.dv_xname, target, lun, tag, esiop_cmd->cmd_c.tag, 1340 esiop_cmd->cmd_c.status); 1341 #endif 1342 1343 if (esiop_lun->active != NULL) { 1344 printf("%s: untagged command already running for target %d " 1345 "lun %d (status %d)\n", sc->sc_c.sc_dev.dv_xname, 1346 target, lun, esiop_lun->active->cmd_c.status); 1347 return -1; 1348 } 1349 /* clear tag slot */ 1350 esiop_lun->tactive[tag] = NULL; 1351 /* add command to non-tagged slot */ 1352 esiop_lun->active = esiop_cmd; 1353 esiop_cmd->cmd_c.flags &= ~CMDFL_TAG; 1354 esiop_cmd->cmd_c.tag = -1; 1355 /* update DSA table */ 1356 esiop_script_write(sc, esiop_target->lun_table_offset + 1357 lun * 2 + A_target_luntbl / sizeof(u_int32_t), 1358 esiop_cmd->cmd_c.dsa); 1359 esiop_script_sync(sc, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1360 return 0; 1361 } 1362 1363 /* 1364 * handle a bus reset: reset chip, unqueue all active commands, free all 1365 * target struct and report loosage to upper layer. 1366 * As the upper layer may requeue immediatly we have to first store 1367 * all active commands in a temporary queue. 1368 */ 1369 void 1370 esiop_handle_reset(sc) 1371 struct esiop_softc *sc; 1372 { 1373 struct esiop_cmd *esiop_cmd; 1374 struct esiop_lun *esiop_lun; 1375 int target, lun, tag; 1376 /* 1377 * scsi bus reset. reset the chip and restart 1378 * the queue. Need to clean up all active commands 1379 */ 1380 printf("%s: scsi bus reset\n", sc->sc_c.sc_dev.dv_xname); 1381 /* stop, reset and restart the chip */ 1382 esiop_reset(sc); 1383 1384 if (sc->sc_flags & SCF_CHAN_NOSLOT) { 1385 /* chip has been reset, all slots are free now */ 1386 sc->sc_flags &= ~SCF_CHAN_NOSLOT; 1387 scsipi_channel_thaw(&sc->sc_c.sc_chan, 1); 1388 } 1389 /* 1390 * Process all commands: first commmands completes, then commands 1391 * being executed 1392 */ 1393 esiop_checkdone(sc); 1394 for (target = 0; target < sc->sc_c.sc_chan.chan_ntargets; 1395 target++) { 1396 struct esiop_target *esiop_target = 1397 (struct esiop_target *)sc->sc_c.targets[target]; 1398 if (esiop_target == NULL) 1399 continue; 1400 for (lun = 0; lun < 8; lun++) { 1401 esiop_lun = esiop_target->esiop_lun[lun]; 1402 if (esiop_lun == NULL) 1403 continue; 1404 for (tag = -1; tag < 1405 ((sc->sc_c.targets[target]->flags & TARF_TAG) ? 1406 ESIOP_NTAG : 0); 1407 tag++) { 1408 if (tag >= 0) 1409 esiop_cmd = esiop_lun->tactive[tag]; 1410 else 1411 esiop_cmd = esiop_lun->active; 1412 if (esiop_cmd == NULL) 1413 continue; 1414 scsipi_printaddr(esiop_cmd->cmd_c.xs->xs_periph); 1415 printf("command with tag id %d reset\n", tag); 1416 esiop_cmd->cmd_c.xs->error = 1417 (esiop_cmd->cmd_c.flags & CMDFL_TIMEOUT) ? 1418 XS_TIMEOUT : XS_RESET; 1419 esiop_cmd->cmd_c.xs->status = SCSI_SIOP_NOCHECK; 1420 if (tag >= 0) 1421 esiop_lun->tactive[tag] = NULL; 1422 else 1423 esiop_lun->active = NULL; 1424 esiop_cmd->cmd_c.status = CMDST_DONE; 1425 esiop_scsicmd_end(esiop_cmd); 1426 } 1427 } 1428 sc->sc_c.targets[target]->status = TARST_ASYNC; 1429 sc->sc_c.targets[target]->flags &= ~(TARF_ISWIDE | TARF_ISDT); 1430 sc->sc_c.targets[target]->period = 1431 sc->sc_c.targets[target]->offset = 0; 1432 siop_update_xfer_mode(&sc->sc_c, target); 1433 } 1434 1435 scsipi_async_event(&sc->sc_c.sc_chan, ASYNC_EVENT_RESET, NULL); 1436 } 1437 1438 void 1439 esiop_scsipi_request(chan, req, arg) 1440 struct scsipi_channel *chan; 1441 scsipi_adapter_req_t req; 1442 void *arg; 1443 { 1444 struct scsipi_xfer *xs; 1445 struct scsipi_periph *periph; 1446 struct esiop_softc *sc = (void *)chan->chan_adapter->adapt_dev; 1447 struct esiop_cmd *esiop_cmd; 1448 struct esiop_target *esiop_target; 1449 int s, error, i; 1450 int target; 1451 int lun; 1452 1453 switch (req) { 1454 case ADAPTER_REQ_RUN_XFER: 1455 xs = arg; 1456 periph = xs->xs_periph; 1457 target = periph->periph_target; 1458 lun = periph->periph_lun; 1459 1460 s = splbio(); 1461 /* 1462 * first check if there are pending complete commands. 1463 * this can free us some resources (in the rings for example). 1464 * we have to lock it to avoid recursion. 1465 */ 1466 if ((sc->sc_flags & SCF_CHAN_ADAPTREQ) == 0) { 1467 sc->sc_flags |= SCF_CHAN_ADAPTREQ; 1468 esiop_checkdone(sc); 1469 sc->sc_flags &= ~SCF_CHAN_ADAPTREQ; 1470 } 1471 #ifdef SIOP_DEBUG_SCHED 1472 printf("starting cmd for %d:%d tag %d(%d)\n", target, lun, 1473 xs->xs_tag_type, xs->xs_tag_id); 1474 #endif 1475 esiop_cmd = TAILQ_FIRST(&sc->free_list); 1476 if (esiop_cmd == NULL) { 1477 xs->error = XS_RESOURCE_SHORTAGE; 1478 scsipi_done(xs); 1479 splx(s); 1480 return; 1481 } 1482 TAILQ_REMOVE(&sc->free_list, esiop_cmd, next); 1483 #ifdef DIAGNOSTIC 1484 if (esiop_cmd->cmd_c.status != CMDST_FREE) 1485 panic("siop_scsicmd: new cmd not free"); 1486 #endif 1487 esiop_target = (struct esiop_target*)sc->sc_c.targets[target]; 1488 if (esiop_target == NULL) { 1489 #ifdef SIOP_DEBUG 1490 printf("%s: alloc siop_target for target %d\n", 1491 sc->sc_c.sc_dev.dv_xname, target); 1492 #endif 1493 sc->sc_c.targets[target] = 1494 malloc(sizeof(struct esiop_target), 1495 M_DEVBUF, M_NOWAIT | M_ZERO); 1496 if (sc->sc_c.targets[target] == NULL) { 1497 printf("%s: can't malloc memory for " 1498 "target %d\n", sc->sc_c.sc_dev.dv_xname, 1499 target); 1500 xs->error = XS_RESOURCE_SHORTAGE; 1501 scsipi_done(xs); 1502 splx(s); 1503 return; 1504 } 1505 esiop_target = 1506 (struct esiop_target*)sc->sc_c.targets[target]; 1507 esiop_target->target_c.status = TARST_PROBING; 1508 esiop_target->target_c.flags = 0; 1509 esiop_target->target_c.id = 1510 sc->sc_c.clock_div << 24; /* scntl3 */ 1511 esiop_target->target_c.id |= target << 16; /* id */ 1512 /* esiop_target->target_c.id |= 0x0 << 8; scxfer is 0 */ 1513 1514 for (i=0; i < 8; i++) 1515 esiop_target->esiop_lun[i] = NULL; 1516 esiop_target_register(sc, target); 1517 } 1518 if (esiop_target->esiop_lun[lun] == NULL) { 1519 esiop_target->esiop_lun[lun] = 1520 malloc(sizeof(struct esiop_lun), M_DEVBUF, 1521 M_NOWAIT|M_ZERO); 1522 if (esiop_target->esiop_lun[lun] == NULL) { 1523 printf("%s: can't alloc esiop_lun for " 1524 "target %d lun %d\n", 1525 sc->sc_c.sc_dev.dv_xname, target, lun); 1526 xs->error = XS_RESOURCE_SHORTAGE; 1527 scsipi_done(xs); 1528 splx(s); 1529 return; 1530 } 1531 } 1532 esiop_cmd->cmd_c.siop_target = sc->sc_c.targets[target]; 1533 esiop_cmd->cmd_c.xs = xs; 1534 esiop_cmd->cmd_c.flags = 0; 1535 esiop_cmd->cmd_c.status = CMDST_READY; 1536 1537 /* load the DMA maps */ 1538 error = bus_dmamap_load(sc->sc_c.sc_dmat, 1539 esiop_cmd->cmd_c.dmamap_cmd, 1540 xs->cmd, xs->cmdlen, NULL, BUS_DMA_NOWAIT); 1541 if (error) { 1542 printf("%s: unable to load cmd DMA map: %d\n", 1543 sc->sc_c.sc_dev.dv_xname, error); 1544 xs->error = XS_DRIVER_STUFFUP; 1545 scsipi_done(xs); 1546 splx(s); 1547 return; 1548 } 1549 if (xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT)) { 1550 error = bus_dmamap_load(sc->sc_c.sc_dmat, 1551 esiop_cmd->cmd_c.dmamap_data, xs->data, xs->datalen, 1552 NULL, BUS_DMA_NOWAIT | BUS_DMA_STREAMING | 1553 ((xs->xs_control & XS_CTL_DATA_IN) ? 1554 BUS_DMA_READ : BUS_DMA_WRITE)); 1555 if (error) { 1556 printf("%s: unable to load cmd DMA map: %d", 1557 sc->sc_c.sc_dev.dv_xname, error); 1558 xs->error = XS_DRIVER_STUFFUP; 1559 scsipi_done(xs); 1560 bus_dmamap_unload(sc->sc_c.sc_dmat, 1561 esiop_cmd->cmd_c.dmamap_cmd); 1562 splx(s); 1563 return; 1564 } 1565 bus_dmamap_sync(sc->sc_c.sc_dmat, 1566 esiop_cmd->cmd_c.dmamap_data, 0, 1567 esiop_cmd->cmd_c.dmamap_data->dm_mapsize, 1568 (xs->xs_control & XS_CTL_DATA_IN) ? 1569 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); 1570 } 1571 bus_dmamap_sync(sc->sc_c.sc_dmat, esiop_cmd->cmd_c.dmamap_cmd, 1572 0, esiop_cmd->cmd_c.dmamap_cmd->dm_mapsize, 1573 BUS_DMASYNC_PREWRITE); 1574 1575 if (xs->xs_tag_type) 1576 esiop_cmd->cmd_c.tag = xs->xs_tag_id; 1577 else 1578 esiop_cmd->cmd_c.tag = -1; 1579 siop_setuptables(&esiop_cmd->cmd_c); 1580 ((struct esiop_xfer *)esiop_cmd->cmd_tables)->tlq = 1581 htole32(A_f_c_target | A_f_c_lun); 1582 ((struct esiop_xfer *)esiop_cmd->cmd_tables)->tlq |= 1583 htole32((target << 8) | (lun << 16)); 1584 if (esiop_cmd->cmd_c.flags & CMDFL_TAG) { 1585 ((struct esiop_xfer *)esiop_cmd->cmd_tables)->tlq |= 1586 htole32(A_f_c_tag); 1587 ((struct esiop_xfer *)esiop_cmd->cmd_tables)->tlq |= 1588 htole32(esiop_cmd->cmd_c.tag << 24); 1589 } 1590 1591 esiop_table_sync(esiop_cmd, 1592 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1593 esiop_start(sc, esiop_cmd); 1594 if (xs->xs_control & XS_CTL_POLL) { 1595 /* poll for command completion */ 1596 while ((xs->xs_status & XS_STS_DONE) == 0) { 1597 delay(1000); 1598 esiop_intr(sc); 1599 } 1600 } 1601 splx(s); 1602 return; 1603 1604 case ADAPTER_REQ_GROW_RESOURCES: 1605 #ifdef SIOP_DEBUG 1606 printf("%s grow resources (%d)\n", sc->sc_c.sc_dev.dv_xname, 1607 sc->sc_c.sc_adapt.adapt_openings); 1608 #endif 1609 esiop_morecbd(sc); 1610 return; 1611 1612 case ADAPTER_REQ_SET_XFER_MODE: 1613 { 1614 struct scsipi_xfer_mode *xm = arg; 1615 if (sc->sc_c.targets[xm->xm_target] == NULL) 1616 return; 1617 s = splbio(); 1618 if ((xm->xm_mode & PERIPH_CAP_TQING) && 1619 (sc->sc_c.targets[xm->xm_target]->flags & TARF_TAG) == 0) { 1620 sc->sc_c.targets[xm->xm_target]->flags |= TARF_TAG; 1621 /* allocate tag tables for this device */ 1622 for (lun = 0; 1623 lun < sc->sc_c.sc_chan.chan_nluns; lun++) { 1624 if (scsipi_lookup_periph(chan, 1625 xm->xm_target, lun) != NULL) 1626 esiop_add_dev(sc, xm->xm_target, lun); 1627 } 1628 } 1629 if ((xm->xm_mode & PERIPH_CAP_WIDE16) && 1630 (sc->sc_c.features & SF_BUS_WIDE)) 1631 sc->sc_c.targets[xm->xm_target]->flags |= TARF_WIDE; 1632 if (xm->xm_mode & PERIPH_CAP_SYNC) 1633 sc->sc_c.targets[xm->xm_target]->flags |= TARF_SYNC; 1634 if ((xm->xm_mode & PERIPH_CAP_DT) && 1635 (sc->sc_c.features & SF_CHIP_DT)) 1636 sc->sc_c.targets[xm->xm_target]->flags |= TARF_DT; 1637 if ((xm->xm_mode & 1638 (PERIPH_CAP_SYNC | PERIPH_CAP_WIDE16 | PERIPH_CAP_DT)) || 1639 sc->sc_c.targets[xm->xm_target]->status == TARST_PROBING) 1640 sc->sc_c.targets[xm->xm_target]->status = TARST_ASYNC; 1641 1642 splx(s); 1643 } 1644 } 1645 } 1646 1647 static void 1648 esiop_start(sc, esiop_cmd) 1649 struct esiop_softc *sc; 1650 struct esiop_cmd *esiop_cmd; 1651 { 1652 struct esiop_lun *esiop_lun; 1653 struct esiop_target *esiop_target; 1654 int timeout; 1655 int target, lun, slot; 1656 1657 /* 1658 * first make sure to read valid data 1659 */ 1660 esiop_script_sync(sc, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1661 1662 /* 1663 * We use a circular queue here. sc->sc_currschedslot points to a 1664 * free slot, unless we have filled the queue. Check this. 1665 */ 1666 slot = sc->sc_currschedslot; 1667 if ((esiop_script_read(sc, sc->sc_shedoffset + slot * CMD_SLOTSIZE) & 1668 A_f_cmd_free) == 0) { 1669 /* 1670 * no more free slot, no need to continue. freeze the queue 1671 * and requeue this command. 1672 */ 1673 scsipi_channel_freeze(&sc->sc_c.sc_chan, 1); 1674 sc->sc_flags |= SCF_CHAN_NOSLOT; 1675 esiop_script_sync(sc, 1676 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1677 esiop_script_write(sc, sc->sc_semoffset, 1678 esiop_script_read(sc, sc->sc_semoffset) & ~A_sem_start); 1679 esiop_script_sync(sc, 1680 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1681 esiop_cmd->cmd_c.xs->error = XS_REQUEUE; 1682 esiop_cmd->cmd_c.xs->status = SCSI_SIOP_NOCHECK; 1683 esiop_scsicmd_end(esiop_cmd); 1684 return; 1685 } 1686 /* OK, we can use this slot */ 1687 1688 target = esiop_cmd->cmd_c.xs->xs_periph->periph_target; 1689 lun = esiop_cmd->cmd_c.xs->xs_periph->periph_lun; 1690 esiop_target = (struct esiop_target*)sc->sc_c.targets[target]; 1691 esiop_lun = esiop_target->esiop_lun[lun]; 1692 /* if non-tagged command active, panic: this shouldn't happen */ 1693 if (esiop_lun->active != NULL) { 1694 panic("esiop_start: tagged cmd while untagged running"); 1695 } 1696 #ifdef DIAGNOSTIC 1697 /* sanity check the tag if needed */ 1698 if (esiop_cmd->cmd_c.flags & CMDFL_TAG) { 1699 if (esiop_lun->tactive[esiop_cmd->cmd_c.tag] != NULL) 1700 panic("esiop_start: tag not free"); 1701 if (esiop_cmd->cmd_c.tag >= ESIOP_NTAG || 1702 esiop_cmd->cmd_c.tag < 0) { 1703 scsipi_printaddr(esiop_cmd->cmd_c.xs->xs_periph); 1704 printf(": tag id %d\n", esiop_cmd->cmd_c.tag); 1705 panic("esiop_start: invalid tag id"); 1706 } 1707 } 1708 #endif 1709 #ifdef SIOP_DEBUG_SCHED 1710 printf("using slot %d for DSA 0x%lx\n", slot, 1711 (u_long)esiop_cmd->cmd_c.dsa); 1712 #endif 1713 /* mark command as active */ 1714 if (esiop_cmd->cmd_c.status == CMDST_READY) 1715 esiop_cmd->cmd_c.status = CMDST_ACTIVE; 1716 else 1717 panic("esiop_start: bad status"); 1718 /* DSA table for reselect */ 1719 if (esiop_cmd->cmd_c.flags & CMDFL_TAG) { 1720 esiop_lun->tactive[esiop_cmd->cmd_c.tag] = esiop_cmd; 1721 /* DSA table for reselect */ 1722 esiop_lun->lun_tagtbl->tbl[esiop_cmd->cmd_c.tag] = 1723 htole32(esiop_cmd->cmd_c.dsa); 1724 bus_dmamap_sync(sc->sc_c.sc_dmat, 1725 esiop_lun->lun_tagtbl->tblblk->blkmap, 1726 esiop_lun->lun_tagtbl->tbl_offset, 1727 sizeof(u_int32_t) * ESIOP_NTAG, BUS_DMASYNC_PREWRITE); 1728 } else { 1729 esiop_lun->active = esiop_cmd; 1730 esiop_script_write(sc, 1731 esiop_target->lun_table_offset + 1732 lun * 2 + A_target_luntbl / sizeof(u_int32_t), 1733 esiop_cmd->cmd_c.dsa); 1734 } 1735 /* scheduler slot: DSA */ 1736 esiop_script_write(sc, sc->sc_shedoffset + slot * CMD_SLOTSIZE, 1737 esiop_cmd->cmd_c.dsa); 1738 /* make sure SCRIPT processor will read valid data */ 1739 esiop_script_sync(sc, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1740 /* handle timeout */ 1741 if ((esiop_cmd->cmd_c.xs->xs_control & XS_CTL_POLL) == 0) { 1742 /* start exire timer */ 1743 timeout = mstohz(esiop_cmd->cmd_c.xs->timeout); 1744 if (timeout == 0) 1745 timeout = 1; 1746 callout_reset( &esiop_cmd->cmd_c.xs->xs_callout, 1747 timeout, esiop_timeout, esiop_cmd); 1748 } 1749 /* Signal script it has some work to do */ 1750 bus_space_write_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 1751 SIOP_ISTAT, ISTAT_SIGP); 1752 /* update the current slot, and wait for IRQ */ 1753 sc->sc_currschedslot++; 1754 if (sc->sc_currschedslot >= A_ncmd_slots) 1755 sc->sc_currschedslot = 0; 1756 return; 1757 } 1758 1759 void 1760 esiop_timeout(v) 1761 void *v; 1762 { 1763 struct esiop_cmd *esiop_cmd = v; 1764 struct esiop_softc *sc = 1765 (struct esiop_softc *)esiop_cmd->cmd_c.siop_sc; 1766 int s; 1767 #ifdef SIOP_DEBUG 1768 int slot, slotdsa; 1769 #endif 1770 1771 s = splbio(); 1772 esiop_table_sync(esiop_cmd, 1773 BUS_DMASYNC_POSTREAD | 1774 BUS_DMASYNC_POSTWRITE); 1775 scsipi_printaddr(esiop_cmd->cmd_c.xs->xs_periph); 1776 #ifdef SIOP_DEBUG 1777 printf("command timeout (status %d)\n", le32toh(esiop_cmd->cmd_tables->status)); 1778 1779 esiop_script_sync(sc, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1780 for (slot = 0; slot < A_ncmd_slots; slot++) { 1781 slotdsa = esiop_script_read(sc, 1782 sc->sc_shedoffset + slot * CMD_SLOTSIZE); 1783 if ((slotdsa & 0x01) == 0) 1784 printf("slot %d not free (0x%x)\n", slot, slotdsa); 1785 } 1786 printf("istat 0x%x ", bus_space_read_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_ISTAT)); 1787 printf("DSP 0x%lx DSA 0x%x\n", 1788 (u_long)(bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_DSP) - sc->sc_c.sc_scriptaddr), 1789 bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_DSA)); 1790 bus_space_read_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_CTEST2); 1791 printf("istat 0x%x\n", bus_space_read_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_ISTAT)); 1792 #else 1793 printf("command timeout\n"); 1794 #endif 1795 /* reset the scsi bus */ 1796 siop_resetbus(&sc->sc_c); 1797 1798 /* deactivate callout */ 1799 callout_stop(&esiop_cmd->cmd_c.xs->xs_callout); 1800 /* 1801 * mark command has being timed out and just return; 1802 * the bus reset will generate an interrupt, 1803 * it will be handled in siop_intr() 1804 */ 1805 esiop_cmd->cmd_c.flags |= CMDFL_TIMEOUT; 1806 splx(s); 1807 return; 1808 1809 } 1810 1811 void 1812 esiop_dump_script(sc) 1813 struct esiop_softc *sc; 1814 { 1815 int i; 1816 for (i = 0; i < PAGE_SIZE / 4; i += 2) { 1817 printf("0x%04x: 0x%08x 0x%08x", i * 4, 1818 le32toh(sc->sc_c.sc_script[i]), 1819 le32toh(sc->sc_c.sc_script[i+1])); 1820 if ((le32toh(sc->sc_c.sc_script[i]) & 0xe0000000) == 1821 0xc0000000) { 1822 i++; 1823 printf(" 0x%08x", le32toh(sc->sc_c.sc_script[i+1])); 1824 } 1825 printf("\n"); 1826 } 1827 } 1828 1829 void 1830 esiop_morecbd(sc) 1831 struct esiop_softc *sc; 1832 { 1833 int error, i, s; 1834 bus_dma_segment_t seg; 1835 int rseg; 1836 struct esiop_cbd *newcbd; 1837 struct esiop_xfer *xfer; 1838 bus_addr_t dsa; 1839 1840 /* allocate a new list head */ 1841 newcbd = malloc(sizeof(struct esiop_cbd), M_DEVBUF, M_NOWAIT|M_ZERO); 1842 if (newcbd == NULL) { 1843 printf("%s: can't allocate memory for command descriptors " 1844 "head\n", sc->sc_c.sc_dev.dv_xname); 1845 return; 1846 } 1847 1848 /* allocate cmd list */ 1849 newcbd->cmds = malloc(sizeof(struct esiop_cmd) * SIOP_NCMDPB, 1850 M_DEVBUF, M_NOWAIT|M_ZERO); 1851 if (newcbd->cmds == NULL) { 1852 printf("%s: can't allocate memory for command descriptors\n", 1853 sc->sc_c.sc_dev.dv_xname); 1854 goto bad3; 1855 } 1856 error = bus_dmamem_alloc(sc->sc_c.sc_dmat, PAGE_SIZE, PAGE_SIZE, 0, 1857 &seg, 1, &rseg, BUS_DMA_NOWAIT); 1858 if (error) { 1859 printf("%s: unable to allocate cbd DMA memory, error = %d\n", 1860 sc->sc_c.sc_dev.dv_xname, error); 1861 goto bad2; 1862 } 1863 error = bus_dmamem_map(sc->sc_c.sc_dmat, &seg, rseg, PAGE_SIZE, 1864 (caddr_t *)&newcbd->xfers, BUS_DMA_NOWAIT|BUS_DMA_COHERENT); 1865 if (error) { 1866 printf("%s: unable to map cbd DMA memory, error = %d\n", 1867 sc->sc_c.sc_dev.dv_xname, error); 1868 goto bad2; 1869 } 1870 error = bus_dmamap_create(sc->sc_c.sc_dmat, PAGE_SIZE, 1, PAGE_SIZE, 0, 1871 BUS_DMA_NOWAIT, &newcbd->xferdma); 1872 if (error) { 1873 printf("%s: unable to create cbd DMA map, error = %d\n", 1874 sc->sc_c.sc_dev.dv_xname, error); 1875 goto bad1; 1876 } 1877 error = bus_dmamap_load(sc->sc_c.sc_dmat, newcbd->xferdma, 1878 newcbd->xfers, PAGE_SIZE, NULL, BUS_DMA_NOWAIT); 1879 if (error) { 1880 printf("%s: unable to load cbd DMA map, error = %d\n", 1881 sc->sc_c.sc_dev.dv_xname, error); 1882 goto bad0; 1883 } 1884 #ifdef DEBUG 1885 printf("%s: alloc newcdb at PHY addr 0x%lx\n", sc->sc_c.sc_dev.dv_xname, 1886 (unsigned long)newcbd->xferdma->dm_segs[0].ds_addr); 1887 #endif 1888 for (i = 0; i < SIOP_NCMDPB; i++) { 1889 error = bus_dmamap_create(sc->sc_c.sc_dmat, MAXPHYS, SIOP_NSG, 1890 MAXPHYS, 0, BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, 1891 &newcbd->cmds[i].cmd_c.dmamap_data); 1892 if (error) { 1893 printf("%s: unable to create data DMA map for cbd: " 1894 "error %d\n", 1895 sc->sc_c.sc_dev.dv_xname, error); 1896 goto bad0; 1897 } 1898 error = bus_dmamap_create(sc->sc_c.sc_dmat, 1899 sizeof(struct scsipi_generic), 1, 1900 sizeof(struct scsipi_generic), 0, 1901 BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, 1902 &newcbd->cmds[i].cmd_c.dmamap_cmd); 1903 if (error) { 1904 printf("%s: unable to create cmd DMA map for cbd %d\n", 1905 sc->sc_c.sc_dev.dv_xname, error); 1906 goto bad0; 1907 } 1908 newcbd->cmds[i].cmd_c.siop_sc = &sc->sc_c; 1909 newcbd->cmds[i].esiop_cbdp = newcbd; 1910 xfer = &newcbd->xfers[i]; 1911 newcbd->cmds[i].cmd_tables = (struct siop_common_xfer *)xfer; 1912 memset(newcbd->cmds[i].cmd_tables, 0, 1913 sizeof(struct esiop_xfer)); 1914 dsa = newcbd->xferdma->dm_segs[0].ds_addr + 1915 i * sizeof(struct esiop_xfer); 1916 newcbd->cmds[i].cmd_c.dsa = dsa; 1917 newcbd->cmds[i].cmd_c.status = CMDST_FREE; 1918 xfer->siop_tables.t_msgout.count= htole32(1); 1919 xfer->siop_tables.t_msgout.addr = htole32(dsa); 1920 xfer->siop_tables.t_msgin.count= htole32(1); 1921 xfer->siop_tables.t_msgin.addr = htole32(dsa + 1922 offsetof(struct siop_common_xfer, msg_in)); 1923 xfer->siop_tables.t_extmsgin.count= htole32(2); 1924 xfer->siop_tables.t_extmsgin.addr = htole32(dsa + 1925 offsetof(struct siop_common_xfer, msg_in) + 1); 1926 xfer->siop_tables.t_extmsgdata.addr = htole32(dsa + 1927 offsetof(struct siop_common_xfer, msg_in) + 3); 1928 xfer->siop_tables.t_status.count= htole32(1); 1929 xfer->siop_tables.t_status.addr = htole32(dsa + 1930 offsetof(struct siop_common_xfer, status)); 1931 1932 s = splbio(); 1933 TAILQ_INSERT_TAIL(&sc->free_list, &newcbd->cmds[i], next); 1934 splx(s); 1935 #ifdef SIOP_DEBUG 1936 printf("tables[%d]: in=0x%x out=0x%x status=0x%x\n", i, 1937 le32toh(newcbd->cmds[i].cmd_tables->t_msgin.addr), 1938 le32toh(newcbd->cmds[i].cmd_tables->t_msgout.addr), 1939 le32toh(newcbd->cmds[i].cmd_tables->t_status.addr)); 1940 #endif 1941 } 1942 s = splbio(); 1943 TAILQ_INSERT_TAIL(&sc->cmds, newcbd, next); 1944 sc->sc_c.sc_adapt.adapt_openings += SIOP_NCMDPB; 1945 splx(s); 1946 return; 1947 bad0: 1948 bus_dmamap_unload(sc->sc_c.sc_dmat, newcbd->xferdma); 1949 bus_dmamap_destroy(sc->sc_c.sc_dmat, newcbd->xferdma); 1950 bad1: 1951 bus_dmamem_free(sc->sc_c.sc_dmat, &seg, rseg); 1952 bad2: 1953 free(newcbd->cmds, M_DEVBUF); 1954 bad3: 1955 free(newcbd, M_DEVBUF); 1956 return; 1957 } 1958 1959 void 1960 esiop_moretagtbl(sc) 1961 struct esiop_softc *sc; 1962 { 1963 int error, i, j, s; 1964 bus_dma_segment_t seg; 1965 int rseg; 1966 struct esiop_dsatblblk *newtblblk; 1967 struct esiop_dsatbl *newtbls; 1968 u_int32_t *tbls; 1969 1970 /* allocate a new list head */ 1971 newtblblk = malloc(sizeof(struct esiop_dsatblblk), 1972 M_DEVBUF, M_NOWAIT|M_ZERO); 1973 if (newtblblk == NULL) { 1974 printf("%s: can't allocate memory for tag DSA table block\n", 1975 sc->sc_c.sc_dev.dv_xname); 1976 return; 1977 } 1978 1979 /* allocate tbl list */ 1980 newtbls = malloc(sizeof(struct esiop_dsatbl) * ESIOP_NTPB, 1981 M_DEVBUF, M_NOWAIT|M_ZERO); 1982 if (newtbls == NULL) { 1983 printf("%s: can't allocate memory for command descriptors\n", 1984 sc->sc_c.sc_dev.dv_xname); 1985 goto bad3; 1986 } 1987 error = bus_dmamem_alloc(sc->sc_c.sc_dmat, PAGE_SIZE, PAGE_SIZE, 0, 1988 &seg, 1, &rseg, BUS_DMA_NOWAIT); 1989 if (error) { 1990 printf("%s: unable to allocate tbl DMA memory, error = %d\n", 1991 sc->sc_c.sc_dev.dv_xname, error); 1992 goto bad2; 1993 } 1994 error = bus_dmamem_map(sc->sc_c.sc_dmat, &seg, rseg, PAGE_SIZE, 1995 (caddr_t *)&tbls, BUS_DMA_NOWAIT|BUS_DMA_COHERENT); 1996 if (error) { 1997 printf("%s: unable to map tbls DMA memory, error = %d\n", 1998 sc->sc_c.sc_dev.dv_xname, error); 1999 goto bad2; 2000 } 2001 error = bus_dmamap_create(sc->sc_c.sc_dmat, PAGE_SIZE, 1, PAGE_SIZE, 0, 2002 BUS_DMA_NOWAIT, &newtblblk->blkmap); 2003 if (error) { 2004 printf("%s: unable to create tbl DMA map, error = %d\n", 2005 sc->sc_c.sc_dev.dv_xname, error); 2006 goto bad1; 2007 } 2008 error = bus_dmamap_load(sc->sc_c.sc_dmat, newtblblk->blkmap, 2009 tbls, PAGE_SIZE, NULL, BUS_DMA_NOWAIT); 2010 if (error) { 2011 printf("%s: unable to load tbl DMA map, error = %d\n", 2012 sc->sc_c.sc_dev.dv_xname, error); 2013 goto bad0; 2014 } 2015 #ifdef DEBUG 2016 printf("%s: alloc new tag DSA table at PHY addr 0x%lx\n", 2017 sc->sc_c.sc_dev.dv_xname, 2018 (unsigned long)newtblblk->blkmap->dm_segs[0].ds_addr); 2019 #endif 2020 for (i = 0; i < ESIOP_NTPB; i++) { 2021 newtbls[i].tblblk = newtblblk; 2022 newtbls[i].tbl = &tbls[i * ESIOP_NTAG]; 2023 newtbls[i].tbl_offset = i * ESIOP_NTAG * sizeof(u_int32_t); 2024 newtbls[i].tbl_dsa = newtblblk->blkmap->dm_segs[0].ds_addr + 2025 newtbls[i].tbl_offset; 2026 for (j = 0; j < ESIOP_NTAG; j++) 2027 newtbls[i].tbl[j] = j; 2028 s = splbio(); 2029 TAILQ_INSERT_TAIL(&sc->free_tagtbl, &newtbls[i], next); 2030 splx(s); 2031 } 2032 s = splbio(); 2033 TAILQ_INSERT_TAIL(&sc->tag_tblblk, newtblblk, next); 2034 splx(s); 2035 return; 2036 bad0: 2037 bus_dmamap_unload(sc->sc_c.sc_dmat, newtblblk->blkmap); 2038 bus_dmamap_destroy(sc->sc_c.sc_dmat, newtblblk->blkmap); 2039 bad1: 2040 bus_dmamem_free(sc->sc_c.sc_dmat, &seg, rseg); 2041 bad2: 2042 free(newtbls, M_DEVBUF); 2043 bad3: 2044 free(newtblblk, M_DEVBUF); 2045 return; 2046 } 2047 2048 void 2049 esiop_update_scntl3(sc, _siop_target) 2050 struct esiop_softc *sc; 2051 struct siop_common_target *_siop_target; 2052 { 2053 struct esiop_target *esiop_target = (struct esiop_target *)_siop_target; 2054 esiop_script_write(sc, esiop_target->lun_table_offset, 2055 esiop_target->target_c.id); 2056 esiop_script_sync(sc, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2057 } 2058 2059 void 2060 esiop_add_dev(sc, target, lun) 2061 struct esiop_softc *sc; 2062 int target; 2063 int lun; 2064 { 2065 struct esiop_target *esiop_target = 2066 (struct esiop_target *)sc->sc_c.targets[target]; 2067 struct esiop_lun *esiop_lun = esiop_target->esiop_lun[lun]; 2068 2069 /* we need a tag DSA table */ 2070 esiop_lun->lun_tagtbl= TAILQ_FIRST(&sc->free_tagtbl); 2071 if (esiop_lun->lun_tagtbl == NULL) { 2072 esiop_moretagtbl(sc); 2073 esiop_lun->lun_tagtbl= TAILQ_FIRST(&sc->free_tagtbl); 2074 if (esiop_lun->lun_tagtbl == NULL) { 2075 /* no resources, run untagged */ 2076 esiop_target->target_c.flags &= ~TARF_TAG; 2077 return; 2078 } 2079 } 2080 TAILQ_REMOVE(&sc->free_tagtbl, esiop_lun->lun_tagtbl, next); 2081 /* Update LUN DSA table */ 2082 esiop_script_write(sc, esiop_target->lun_table_offset + 2083 lun * 2 + A_target_luntbl_tag / sizeof(u_int32_t), 2084 esiop_lun->lun_tagtbl->tbl_dsa); 2085 esiop_script_sync(sc, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2086 } 2087 2088 void 2089 esiop_del_dev(sc, target, lun) 2090 struct esiop_softc *sc; 2091 int target; 2092 int lun; 2093 { 2094 struct esiop_target *esiop_target; 2095 #ifdef SIOP_DEBUG 2096 printf("%s:%d:%d: free lun sw entry\n", 2097 sc->sc_c.sc_dev.dv_xname, target, lun); 2098 #endif 2099 if (sc->sc_c.targets[target] == NULL) 2100 return; 2101 esiop_target = (struct esiop_target *)sc->sc_c.targets[target]; 2102 free(esiop_target->esiop_lun[lun], M_DEVBUF); 2103 esiop_target->esiop_lun[lun] = NULL; 2104 } 2105 2106 void 2107 esiop_target_register(sc, target) 2108 struct esiop_softc *sc; 2109 u_int32_t target; 2110 { 2111 struct esiop_target *esiop_target = 2112 (struct esiop_target *)sc->sc_c.targets[target]; 2113 struct esiop_lun *esiop_lun; 2114 int lun; 2115 2116 /* get a DSA table for this target */ 2117 esiop_target->lun_table_offset = sc->sc_free_offset; 2118 sc->sc_free_offset += sc->sc_c.sc_chan.chan_nluns * 2 + 2; 2119 #ifdef SIOP_DEBUG 2120 printf("%s: lun table for target %d offset %d free offset %d\n", 2121 sc->sc_c.sc_dev.dv_xname, target, esiop_target->lun_table_offset, 2122 sc->sc_free_offset); 2123 #endif 2124 /* first 32 bytes are ID (for select) */ 2125 esiop_script_write(sc, esiop_target->lun_table_offset, 2126 esiop_target->target_c.id); 2127 /* Record this table in the target DSA table */ 2128 esiop_script_write(sc, 2129 sc->sc_target_table_offset + target, 2130 (esiop_target->lun_table_offset * sizeof(u_int32_t)) + 2131 sc->sc_c.sc_scriptaddr); 2132 /* if we have a tag table, register it */ 2133 for (lun = 0; lun < sc->sc_c.sc_chan.chan_nluns; lun++) { 2134 esiop_lun = esiop_target->esiop_lun[lun]; 2135 if (esiop_lun == NULL) 2136 continue; 2137 if (esiop_lun->lun_tagtbl) 2138 esiop_script_write(sc, esiop_target->lun_table_offset + 2139 lun * 2 + A_target_luntbl_tag / sizeof(u_int32_t), 2140 esiop_lun->lun_tagtbl->tbl_dsa); 2141 } 2142 esiop_script_sync(sc, 2143 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2144 } 2145 2146 #ifdef SIOP_STATS 2147 void 2148 esiop_printstats() 2149 { 2150 printf("esiop_stat_intr %d\n", esiop_stat_intr); 2151 printf("esiop_stat_intr_shortxfer %d\n", esiop_stat_intr_shortxfer); 2152 printf("esiop_stat_intr_xferdisc %d\n", esiop_stat_intr_xferdisc); 2153 printf("esiop_stat_intr_sdp %d\n", esiop_stat_intr_sdp); 2154 printf("esiop_stat_intr_done %d\n", esiop_stat_intr_done); 2155 printf("esiop_stat_intr_lunresel %d\n", esiop_stat_intr_lunresel); 2156 printf("esiop_stat_intr_qfull %d\n", esiop_stat_intr_qfull); 2157 } 2158 #endif 2159