esiop.c revision 1.14
1 /* $NetBSD: esiop.c,v 1.14 2002/05/04 17:51:16 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 1.14 2002/05/04 17:51:16 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 xs->error = XS_DRIVER_STUFFUP; 1162 } 1163 if (xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT)) { 1164 bus_dmamap_sync(sc->sc_c.sc_dmat, 1165 esiop_cmd->cmd_c.dmamap_data, 0, 1166 esiop_cmd->cmd_c.dmamap_data->dm_mapsize, 1167 (xs->xs_control & XS_CTL_DATA_IN) ? 1168 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 1169 bus_dmamap_unload(sc->sc_c.sc_dmat, 1170 esiop_cmd->cmd_c.dmamap_data); 1171 } 1172 bus_dmamap_unload(sc->sc_c.sc_dmat, esiop_cmd->cmd_c.dmamap_cmd); 1173 callout_stop(&esiop_cmd->cmd_c.xs->xs_callout); 1174 esiop_cmd->cmd_c.status = CMDST_FREE; 1175 TAILQ_INSERT_TAIL(&sc->free_list, esiop_cmd, next); 1176 xs->resid = 0; 1177 scsipi_done (xs); 1178 } 1179 1180 void 1181 esiop_checkdone(sc) 1182 struct esiop_softc *sc; 1183 { 1184 int target, lun, tag; 1185 struct esiop_target *esiop_target; 1186 struct esiop_lun *esiop_lun; 1187 struct esiop_cmd *esiop_cmd; 1188 u_int32_t slot; 1189 int needsync = 0; 1190 int status; 1191 u_int32_t sem; 1192 1193 esiop_script_sync(sc, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1194 sem = esiop_script_read(sc, sc->sc_semoffset); 1195 esiop_script_write(sc, sc->sc_semoffset, sem & ~A_sem_done); 1196 if ((sc->sc_flags & SCF_CHAN_NOSLOT) && (sem & A_sem_start)) { 1197 /* 1198 * at last one command have been started, 1199 * so we should have free slots now 1200 */ 1201 sc->sc_flags &= ~SCF_CHAN_NOSLOT; 1202 scsipi_channel_thaw(&sc->sc_c.sc_chan, 1); 1203 } 1204 esiop_script_sync(sc, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1205 1206 if ((sem & A_sem_done) == 0) { 1207 /* no pending done command */ 1208 return; 1209 } 1210 1211 bus_dmamap_sync(sc->sc_c.sc_dmat, sc->sc_done_map, 1212 sc->sc_done_offset, A_ndone_slots * sizeof(u_int32_t), 1213 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1214 next: 1215 if (sc->sc_done_slot[sc->sc_currdoneslot] == 0) { 1216 if (needsync) 1217 bus_dmamap_sync(sc->sc_c.sc_dmat, sc->sc_done_map, 1218 sc->sc_done_offset, 1219 A_ndone_slots * sizeof(u_int32_t), 1220 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1221 return; 1222 } 1223 1224 needsync = 1; 1225 1226 slot = htole32(sc->sc_done_slot[sc->sc_currdoneslot]); 1227 sc->sc_done_slot[sc->sc_currdoneslot] = 0; 1228 sc->sc_currdoneslot += 1; 1229 if (sc->sc_currdoneslot == A_ndone_slots) 1230 sc->sc_currdoneslot = 0; 1231 1232 target = (slot & A_f_c_target) ? (slot >> 8) & 0xff : -1; 1233 lun = (slot & A_f_c_lun) ? (slot >> 16) & 0xff : -1; 1234 tag = (slot & A_f_c_tag) ? (slot >> 24) & 0xff : -1; 1235 1236 esiop_target = (target >= 0) ? 1237 (struct esiop_target *)sc->sc_c.targets[target] : NULL; 1238 if (esiop_target == NULL) { 1239 printf("esiop_target (target %d) not valid\n", target); 1240 goto next; 1241 } 1242 esiop_lun = (lun >= 0) ? esiop_target->esiop_lun[lun] : NULL; 1243 if (esiop_lun == NULL) { 1244 printf("esiop_lun (target %d lun %d) not valid\n", 1245 target, lun); 1246 goto next; 1247 } 1248 esiop_cmd = (tag >= 0) ? esiop_lun->tactive[tag] : esiop_lun->active; 1249 if (esiop_cmd == NULL) { 1250 printf("esiop_cmd (target %d lun %d tag %d) not valid\n", 1251 target, lun, tag); 1252 goto next; 1253 } 1254 1255 esiop_table_sync(esiop_cmd, 1256 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1257 status = le32toh(esiop_cmd->cmd_tables->status); 1258 #ifdef DIAGNOSTIC 1259 if (status != SCSI_OK) { 1260 printf("command for T/L/Q %d/%d/%d status %d\n", 1261 target, lun, tag, status); 1262 goto next; 1263 } 1264 1265 #endif 1266 /* Ok, this command has been handled */ 1267 esiop_cmd->cmd_c.xs->status = status; 1268 if (tag >= 0) 1269 esiop_lun->tactive[tag] = NULL; 1270 else 1271 esiop_lun->active = NULL; 1272 esiop_scsicmd_end(esiop_cmd); 1273 goto next; 1274 } 1275 1276 void 1277 esiop_unqueue(sc, target, lun) 1278 struct esiop_softc *sc; 1279 int target; 1280 int lun; 1281 { 1282 int slot, tag; 1283 u_int32_t slotdsa; 1284 struct esiop_cmd *esiop_cmd; 1285 struct esiop_lun *esiop_lun = 1286 ((struct esiop_target *)sc->sc_c.targets[target])->esiop_lun[lun]; 1287 1288 /* first make sure to read valid data */ 1289 esiop_script_sync(sc, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1290 1291 for (tag = 0; tag < ESIOP_NTAG; tag++) { 1292 /* look for commands in the scheduler, not yet started */ 1293 if (esiop_lun->tactive[tag] == NULL) 1294 continue; 1295 esiop_cmd = esiop_lun->tactive[tag]; 1296 for (slot = 0; slot < A_ncmd_slots; slot++) { 1297 slotdsa = esiop_script_read(sc, 1298 sc->sc_shedoffset + slot * CMD_SLOTSIZE); 1299 /* if the slot has any flag, it won't match the DSA */ 1300 if (slotdsa == esiop_cmd->cmd_c.dsa) { /* found it */ 1301 /* Mark this slot as ignore */ 1302 esiop_script_write(sc, 1303 sc->sc_shedoffset + slot * CMD_SLOTSIZE, 1304 esiop_cmd->cmd_c.dsa | A_f_cmd_ignore); 1305 /* ask to requeue */ 1306 esiop_cmd->cmd_c.xs->error = XS_REQUEUE; 1307 esiop_cmd->cmd_c.xs->status = SCSI_SIOP_NOCHECK; 1308 esiop_lun->tactive[tag] = NULL; 1309 esiop_scsicmd_end(esiop_cmd); 1310 break; 1311 } 1312 } 1313 } 1314 esiop_script_sync(sc, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1315 } 1316 1317 /* 1318 * handle a rejected queue tag message: the command will run untagged, 1319 * has to adjust the reselect script. 1320 */ 1321 1322 1323 int 1324 esiop_handle_qtag_reject(esiop_cmd) 1325 struct esiop_cmd *esiop_cmd; 1326 { 1327 struct esiop_softc *sc = (struct esiop_softc *)esiop_cmd->cmd_c.siop_sc; 1328 int target = esiop_cmd->cmd_c.xs->xs_periph->periph_target; 1329 int lun = esiop_cmd->cmd_c.xs->xs_periph->periph_lun; 1330 int tag = esiop_cmd->cmd_tables->msg_out[2]; 1331 struct esiop_target *esiop_target = 1332 (struct esiop_target*)sc->sc_c.targets[target]; 1333 struct esiop_lun *esiop_lun = esiop_target->esiop_lun[lun]; 1334 1335 #ifdef SIOP_DEBUG 1336 printf("%s:%d:%d: tag message %d (%d) rejected (status %d)\n", 1337 sc->sc_c.sc_dev.dv_xname, target, lun, tag, esiop_cmd->cmd_c.tag, 1338 esiop_cmd->cmd_c.status); 1339 #endif 1340 1341 if (esiop_lun->active != NULL) { 1342 printf("%s: untagged command already running for target %d " 1343 "lun %d (status %d)\n", sc->sc_c.sc_dev.dv_xname, 1344 target, lun, esiop_lun->active->cmd_c.status); 1345 return -1; 1346 } 1347 /* clear tag slot */ 1348 esiop_lun->tactive[tag] = NULL; 1349 /* add command to non-tagged slot */ 1350 esiop_lun->active = esiop_cmd; 1351 esiop_cmd->cmd_c.flags &= ~CMDFL_TAG; 1352 esiop_cmd->cmd_c.tag = -1; 1353 /* update DSA table */ 1354 esiop_script_write(sc, esiop_target->lun_table_offset + 1355 lun * 2 + A_target_luntbl / sizeof(u_int32_t), 1356 esiop_cmd->cmd_c.dsa); 1357 esiop_script_sync(sc, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1358 return 0; 1359 } 1360 1361 /* 1362 * handle a bus reset: reset chip, unqueue all active commands, free all 1363 * target struct and report loosage to upper layer. 1364 * As the upper layer may requeue immediatly we have to first store 1365 * all active commands in a temporary queue. 1366 */ 1367 void 1368 esiop_handle_reset(sc) 1369 struct esiop_softc *sc; 1370 { 1371 struct esiop_cmd *esiop_cmd; 1372 struct esiop_lun *esiop_lun; 1373 int target, lun, tag; 1374 /* 1375 * scsi bus reset. reset the chip and restart 1376 * the queue. Need to clean up all active commands 1377 */ 1378 printf("%s: scsi bus reset\n", sc->sc_c.sc_dev.dv_xname); 1379 /* stop, reset and restart the chip */ 1380 esiop_reset(sc); 1381 1382 if (sc->sc_flags & SCF_CHAN_NOSLOT) { 1383 /* chip has been reset, all slots are free now */ 1384 sc->sc_flags &= ~SCF_CHAN_NOSLOT; 1385 scsipi_channel_thaw(&sc->sc_c.sc_chan, 1); 1386 } 1387 /* 1388 * Process all commands: first commmands completes, then commands 1389 * being executed 1390 */ 1391 esiop_checkdone(sc); 1392 for (target = 0; target < sc->sc_c.sc_chan.chan_ntargets; 1393 target++) { 1394 struct esiop_target *esiop_target = 1395 (struct esiop_target *)sc->sc_c.targets[target]; 1396 if (esiop_target == NULL) 1397 continue; 1398 for (lun = 0; lun < 8; lun++) { 1399 esiop_lun = esiop_target->esiop_lun[lun]; 1400 if (esiop_lun == NULL) 1401 continue; 1402 for (tag = -1; tag < 1403 ((sc->sc_c.targets[target]->flags & TARF_TAG) ? 1404 ESIOP_NTAG : 0); 1405 tag++) { 1406 if (tag >= 0) 1407 esiop_cmd = esiop_lun->tactive[tag]; 1408 else 1409 esiop_cmd = esiop_lun->active; 1410 if (esiop_cmd == NULL) 1411 continue; 1412 scsipi_printaddr(esiop_cmd->cmd_c.xs->xs_periph); 1413 printf("command with tag id %d reset\n", tag); 1414 esiop_cmd->cmd_c.xs->error = 1415 (esiop_cmd->cmd_c.flags & CMDFL_TIMEOUT) ? 1416 XS_TIMEOUT : XS_RESET; 1417 esiop_cmd->cmd_c.xs->status = SCSI_SIOP_NOCHECK; 1418 if (tag >= 0) 1419 esiop_lun->tactive[tag] = NULL; 1420 else 1421 esiop_lun->active = NULL; 1422 esiop_cmd->cmd_c.status = CMDST_DONE; 1423 esiop_scsicmd_end(esiop_cmd); 1424 } 1425 } 1426 sc->sc_c.targets[target]->status = TARST_ASYNC; 1427 sc->sc_c.targets[target]->flags &= ~(TARF_ISWIDE | TARF_ISDT); 1428 sc->sc_c.targets[target]->period = 1429 sc->sc_c.targets[target]->offset = 0; 1430 siop_update_xfer_mode(&sc->sc_c, target); 1431 } 1432 1433 scsipi_async_event(&sc->sc_c.sc_chan, ASYNC_EVENT_RESET, NULL); 1434 } 1435 1436 void 1437 esiop_scsipi_request(chan, req, arg) 1438 struct scsipi_channel *chan; 1439 scsipi_adapter_req_t req; 1440 void *arg; 1441 { 1442 struct scsipi_xfer *xs; 1443 struct scsipi_periph *periph; 1444 struct esiop_softc *sc = (void *)chan->chan_adapter->adapt_dev; 1445 struct esiop_cmd *esiop_cmd; 1446 struct esiop_target *esiop_target; 1447 int s, error, i; 1448 int target; 1449 int lun; 1450 1451 switch (req) { 1452 case ADAPTER_REQ_RUN_XFER: 1453 xs = arg; 1454 periph = xs->xs_periph; 1455 target = periph->periph_target; 1456 lun = periph->periph_lun; 1457 1458 s = splbio(); 1459 /* 1460 * first check if there are pending complete commands. 1461 * this can free us some resources (in the rings for example). 1462 * we have to lock it to avoid recursion. 1463 */ 1464 if ((sc->sc_flags & SCF_CHAN_ADAPTREQ) == 0) { 1465 sc->sc_flags |= SCF_CHAN_ADAPTREQ; 1466 esiop_checkdone(sc); 1467 sc->sc_flags &= ~SCF_CHAN_ADAPTREQ; 1468 } 1469 #ifdef SIOP_DEBUG_SCHED 1470 printf("starting cmd for %d:%d tag %d(%d)\n", target, lun, 1471 xs->xs_tag_type, xs->xs_tag_id); 1472 #endif 1473 esiop_cmd = TAILQ_FIRST(&sc->free_list); 1474 if (esiop_cmd == NULL) { 1475 xs->error = XS_RESOURCE_SHORTAGE; 1476 scsipi_done(xs); 1477 splx(s); 1478 return; 1479 } 1480 TAILQ_REMOVE(&sc->free_list, esiop_cmd, next); 1481 #ifdef DIAGNOSTIC 1482 if (esiop_cmd->cmd_c.status != CMDST_FREE) 1483 panic("siop_scsicmd: new cmd not free"); 1484 #endif 1485 esiop_target = (struct esiop_target*)sc->sc_c.targets[target]; 1486 if (esiop_target == NULL) { 1487 #ifdef SIOP_DEBUG 1488 printf("%s: alloc siop_target for target %d\n", 1489 sc->sc_c.sc_dev.dv_xname, target); 1490 #endif 1491 sc->sc_c.targets[target] = 1492 malloc(sizeof(struct esiop_target), 1493 M_DEVBUF, M_NOWAIT | M_ZERO); 1494 if (sc->sc_c.targets[target] == NULL) { 1495 printf("%s: can't malloc memory for " 1496 "target %d\n", sc->sc_c.sc_dev.dv_xname, 1497 target); 1498 xs->error = XS_RESOURCE_SHORTAGE; 1499 scsipi_done(xs); 1500 splx(s); 1501 return; 1502 } 1503 esiop_target = 1504 (struct esiop_target*)sc->sc_c.targets[target]; 1505 esiop_target->target_c.status = TARST_PROBING; 1506 esiop_target->target_c.flags = 0; 1507 esiop_target->target_c.id = 1508 sc->sc_c.clock_div << 24; /* scntl3 */ 1509 esiop_target->target_c.id |= target << 16; /* id */ 1510 /* esiop_target->target_c.id |= 0x0 << 8; scxfer is 0 */ 1511 1512 for (i=0; i < 8; i++) 1513 esiop_target->esiop_lun[i] = NULL; 1514 esiop_target_register(sc, target); 1515 } 1516 if (esiop_target->esiop_lun[lun] == NULL) { 1517 esiop_target->esiop_lun[lun] = 1518 malloc(sizeof(struct esiop_lun), M_DEVBUF, 1519 M_NOWAIT|M_ZERO); 1520 if (esiop_target->esiop_lun[lun] == NULL) { 1521 printf("%s: can't alloc esiop_lun for " 1522 "target %d lun %d\n", 1523 sc->sc_c.sc_dev.dv_xname, target, lun); 1524 xs->error = XS_RESOURCE_SHORTAGE; 1525 scsipi_done(xs); 1526 splx(s); 1527 return; 1528 } 1529 } 1530 esiop_cmd->cmd_c.siop_target = sc->sc_c.targets[target]; 1531 esiop_cmd->cmd_c.xs = xs; 1532 esiop_cmd->cmd_c.flags = 0; 1533 esiop_cmd->cmd_c.status = CMDST_READY; 1534 1535 /* load the DMA maps */ 1536 error = bus_dmamap_load(sc->sc_c.sc_dmat, 1537 esiop_cmd->cmd_c.dmamap_cmd, 1538 xs->cmd, xs->cmdlen, NULL, BUS_DMA_NOWAIT); 1539 if (error) { 1540 printf("%s: unable to load cmd DMA map: %d\n", 1541 sc->sc_c.sc_dev.dv_xname, error); 1542 xs->error = XS_DRIVER_STUFFUP; 1543 scsipi_done(xs); 1544 splx(s); 1545 return; 1546 } 1547 if (xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT)) { 1548 error = bus_dmamap_load(sc->sc_c.sc_dmat, 1549 esiop_cmd->cmd_c.dmamap_data, xs->data, xs->datalen, 1550 NULL, BUS_DMA_NOWAIT | BUS_DMA_STREAMING | 1551 ((xs->xs_control & XS_CTL_DATA_IN) ? 1552 BUS_DMA_READ : BUS_DMA_WRITE)); 1553 if (error) { 1554 printf("%s: unable to load cmd DMA map: %d", 1555 sc->sc_c.sc_dev.dv_xname, error); 1556 xs->error = XS_DRIVER_STUFFUP; 1557 scsipi_done(xs); 1558 bus_dmamap_unload(sc->sc_c.sc_dmat, 1559 esiop_cmd->cmd_c.dmamap_cmd); 1560 splx(s); 1561 return; 1562 } 1563 bus_dmamap_sync(sc->sc_c.sc_dmat, 1564 esiop_cmd->cmd_c.dmamap_data, 0, 1565 esiop_cmd->cmd_c.dmamap_data->dm_mapsize, 1566 (xs->xs_control & XS_CTL_DATA_IN) ? 1567 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); 1568 } 1569 bus_dmamap_sync(sc->sc_c.sc_dmat, esiop_cmd->cmd_c.dmamap_cmd, 1570 0, esiop_cmd->cmd_c.dmamap_cmd->dm_mapsize, 1571 BUS_DMASYNC_PREWRITE); 1572 1573 if (xs->xs_tag_type) 1574 esiop_cmd->cmd_c.tag = xs->xs_tag_id; 1575 else 1576 esiop_cmd->cmd_c.tag = -1; 1577 siop_setuptables(&esiop_cmd->cmd_c); 1578 ((struct esiop_xfer *)esiop_cmd->cmd_tables)->tlq = 1579 htole32(A_f_c_target | A_f_c_lun); 1580 ((struct esiop_xfer *)esiop_cmd->cmd_tables)->tlq |= 1581 htole32((target << 8) | (lun << 16)); 1582 if (esiop_cmd->cmd_c.flags & CMDFL_TAG) { 1583 ((struct esiop_xfer *)esiop_cmd->cmd_tables)->tlq |= 1584 htole32(A_f_c_tag); 1585 ((struct esiop_xfer *)esiop_cmd->cmd_tables)->tlq |= 1586 htole32(esiop_cmd->cmd_c.tag << 24); 1587 } 1588 1589 esiop_table_sync(esiop_cmd, 1590 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1591 esiop_start(sc, esiop_cmd); 1592 if (xs->xs_control & XS_CTL_POLL) { 1593 /* poll for command completion */ 1594 while ((xs->xs_status & XS_STS_DONE) == 0) { 1595 delay(1000); 1596 esiop_intr(sc); 1597 } 1598 } 1599 splx(s); 1600 return; 1601 1602 case ADAPTER_REQ_GROW_RESOURCES: 1603 #ifdef SIOP_DEBUG 1604 printf("%s grow resources (%d)\n", sc->sc_c.sc_dev.dv_xname, 1605 sc->sc_c.sc_adapt.adapt_openings); 1606 #endif 1607 esiop_morecbd(sc); 1608 return; 1609 1610 case ADAPTER_REQ_SET_XFER_MODE: 1611 { 1612 struct scsipi_xfer_mode *xm = arg; 1613 if (sc->sc_c.targets[xm->xm_target] == NULL) 1614 return; 1615 s = splbio(); 1616 if ((xm->xm_mode & PERIPH_CAP_TQING) && 1617 (sc->sc_c.targets[xm->xm_target]->flags & TARF_TAG) == 0) { 1618 sc->sc_c.targets[xm->xm_target]->flags |= TARF_TAG; 1619 /* allocate tag tables for this device */ 1620 for (lun = 0; 1621 lun < sc->sc_c.sc_chan.chan_nluns; lun++) { 1622 if (sc->sc_c.sc_chan.chan_periphs[ 1623 xm->xm_target][lun]) 1624 esiop_add_dev(sc, xm->xm_target, lun); 1625 } 1626 } 1627 if ((xm->xm_mode & PERIPH_CAP_WIDE16) && 1628 (sc->sc_c.features & SF_BUS_WIDE)) 1629 sc->sc_c.targets[xm->xm_target]->flags |= TARF_WIDE; 1630 if (xm->xm_mode & PERIPH_CAP_SYNC) 1631 sc->sc_c.targets[xm->xm_target]->flags |= TARF_SYNC; 1632 if ((xm->xm_mode & PERIPH_CAP_DT) && 1633 (sc->sc_c.features & SF_CHIP_DT)) 1634 sc->sc_c.targets[xm->xm_target]->flags |= TARF_DT; 1635 if ((xm->xm_mode & 1636 (PERIPH_CAP_SYNC | PERIPH_CAP_WIDE16 | PERIPH_CAP_DT)) || 1637 sc->sc_c.targets[xm->xm_target]->status == TARST_PROBING) 1638 sc->sc_c.targets[xm->xm_target]->status = TARST_ASYNC; 1639 1640 splx(s); 1641 } 1642 } 1643 } 1644 1645 static void 1646 esiop_start(sc, esiop_cmd) 1647 struct esiop_softc *sc; 1648 struct esiop_cmd *esiop_cmd; 1649 { 1650 struct esiop_lun *esiop_lun; 1651 struct esiop_target *esiop_target; 1652 int timeout; 1653 int target, lun, slot; 1654 1655 /* 1656 * first make sure to read valid data 1657 */ 1658 esiop_script_sync(sc, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1659 1660 /* 1661 * We use a circular queue here. sc->sc_currschedslot points to a 1662 * free slot, unless we have filled the queue. Check this. 1663 */ 1664 slot = sc->sc_currschedslot; 1665 if ((esiop_script_read(sc, sc->sc_shedoffset + slot * CMD_SLOTSIZE) & 1666 A_f_cmd_free) == 0) { 1667 /* 1668 * no more free slot, no need to continue. freeze the queue 1669 * and requeue this command. 1670 */ 1671 scsipi_channel_freeze(&sc->sc_c.sc_chan, 1); 1672 sc->sc_flags |= SCF_CHAN_NOSLOT; 1673 esiop_script_sync(sc, 1674 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1675 esiop_script_write(sc, sc->sc_semoffset, 1676 esiop_script_read(sc, sc->sc_semoffset) & ~A_sem_start); 1677 esiop_script_sync(sc, 1678 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1679 esiop_cmd->cmd_c.xs->error = XS_REQUEUE; 1680 esiop_cmd->cmd_c.xs->status = SCSI_SIOP_NOCHECK; 1681 esiop_scsicmd_end(esiop_cmd); 1682 return; 1683 } 1684 /* OK, we can use this slot */ 1685 1686 target = esiop_cmd->cmd_c.xs->xs_periph->periph_target; 1687 lun = esiop_cmd->cmd_c.xs->xs_periph->periph_lun; 1688 esiop_target = (struct esiop_target*)sc->sc_c.targets[target]; 1689 esiop_lun = esiop_target->esiop_lun[lun]; 1690 /* if non-tagged command active, panic: this shouldn't happen */ 1691 if (esiop_lun->active != NULL) { 1692 panic("esiop_start: tagged cmd while untagged running"); 1693 } 1694 #ifdef DIAGNOSTIC 1695 /* sanity check the tag if needed */ 1696 if (esiop_cmd->cmd_c.flags & CMDFL_TAG) { 1697 if (esiop_lun->tactive[esiop_cmd->cmd_c.tag] != NULL) 1698 panic("esiop_start: tag not free"); 1699 if (esiop_cmd->cmd_c.tag >= ESIOP_NTAG || 1700 esiop_cmd->cmd_c.tag < 0) { 1701 scsipi_printaddr(esiop_cmd->cmd_c.xs->xs_periph); 1702 printf(": tag id %d\n", esiop_cmd->cmd_c.tag); 1703 panic("esiop_start: invalid tag id"); 1704 } 1705 } 1706 #endif 1707 #ifdef SIOP_DEBUG_SCHED 1708 printf("using slot %d for DSA 0x%lx\n", slot, 1709 (u_long)esiop_cmd->cmd_c.dsa); 1710 #endif 1711 /* mark command as active */ 1712 if (esiop_cmd->cmd_c.status == CMDST_READY) 1713 esiop_cmd->cmd_c.status = CMDST_ACTIVE; 1714 else 1715 panic("esiop_start: bad status"); 1716 /* DSA table for reselect */ 1717 if (esiop_cmd->cmd_c.flags & CMDFL_TAG) { 1718 esiop_lun->tactive[esiop_cmd->cmd_c.tag] = esiop_cmd; 1719 /* DSA table for reselect */ 1720 esiop_lun->lun_tagtbl->tbl[esiop_cmd->cmd_c.tag] = 1721 htole32(esiop_cmd->cmd_c.dsa); 1722 bus_dmamap_sync(sc->sc_c.sc_dmat, 1723 esiop_lun->lun_tagtbl->tblblk->blkmap, 1724 esiop_lun->lun_tagtbl->tbl_offset, 1725 sizeof(u_int32_t) * ESIOP_NTAG, BUS_DMASYNC_PREWRITE); 1726 } else { 1727 esiop_lun->active = esiop_cmd; 1728 esiop_script_write(sc, 1729 esiop_target->lun_table_offset + 1730 lun * 2 + A_target_luntbl / sizeof(u_int32_t), 1731 esiop_cmd->cmd_c.dsa); 1732 } 1733 /* scheduler slot: DSA */ 1734 esiop_script_write(sc, sc->sc_shedoffset + slot * CMD_SLOTSIZE, 1735 esiop_cmd->cmd_c.dsa); 1736 /* make sure SCRIPT processor will read valid data */ 1737 esiop_script_sync(sc, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1738 /* handle timeout */ 1739 if ((esiop_cmd->cmd_c.xs->xs_control & XS_CTL_POLL) == 0) { 1740 /* start exire timer */ 1741 timeout = mstohz(esiop_cmd->cmd_c.xs->timeout); 1742 if (timeout == 0) 1743 timeout = 1; 1744 callout_reset( &esiop_cmd->cmd_c.xs->xs_callout, 1745 timeout, esiop_timeout, esiop_cmd); 1746 } 1747 /* Signal script it has some work to do */ 1748 bus_space_write_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 1749 SIOP_ISTAT, ISTAT_SIGP); 1750 /* update the current slot, and wait for IRQ */ 1751 sc->sc_currschedslot++; 1752 if (sc->sc_currschedslot >= A_ncmd_slots) 1753 sc->sc_currschedslot = 0; 1754 return; 1755 } 1756 1757 void 1758 esiop_timeout(v) 1759 void *v; 1760 { 1761 struct esiop_cmd *esiop_cmd = v; 1762 struct esiop_softc *sc = 1763 (struct esiop_softc *)esiop_cmd->cmd_c.siop_sc; 1764 int s; 1765 #ifdef SIOP_DEBUG 1766 int slot, slotdsa; 1767 #endif 1768 1769 s = splbio(); 1770 esiop_table_sync(esiop_cmd, 1771 BUS_DMASYNC_POSTREAD | 1772 BUS_DMASYNC_POSTWRITE); 1773 scsipi_printaddr(esiop_cmd->cmd_c.xs->xs_periph); 1774 #ifdef SIOP_DEBUG 1775 printf("command timeout (status %d)\n", le32toh(esiop_cmd->cmd_tables->status)); 1776 1777 esiop_script_sync(sc, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1778 for (slot = 0; slot < A_ncmd_slots; slot++) { 1779 slotdsa = esiop_script_read(sc, 1780 sc->sc_shedoffset + slot * CMD_SLOTSIZE); 1781 if ((slotdsa & 0x01) == 0) 1782 printf("slot %d not free (0x%x)\n", slot, slotdsa); 1783 } 1784 printf("istat 0x%x ", bus_space_read_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_ISTAT)); 1785 printf("DSP 0x%lx DSA 0x%x\n", 1786 (u_long)(bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_DSP) - sc->sc_c.sc_scriptaddr), 1787 bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_DSA)); 1788 bus_space_read_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_CTEST2); 1789 printf("istat 0x%x\n", bus_space_read_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_ISTAT)); 1790 #else 1791 printf("command timeout\n"); 1792 #endif 1793 /* reset the scsi bus */ 1794 siop_resetbus(&sc->sc_c); 1795 1796 /* deactivate callout */ 1797 callout_stop(&esiop_cmd->cmd_c.xs->xs_callout); 1798 /* 1799 * mark command has being timed out and just return; 1800 * the bus reset will generate an interrupt, 1801 * it will be handled in siop_intr() 1802 */ 1803 esiop_cmd->cmd_c.flags |= CMDFL_TIMEOUT; 1804 splx(s); 1805 return; 1806 1807 } 1808 1809 void 1810 esiop_dump_script(sc) 1811 struct esiop_softc *sc; 1812 { 1813 int i; 1814 for (i = 0; i < PAGE_SIZE / 4; i += 2) { 1815 printf("0x%04x: 0x%08x 0x%08x", i * 4, 1816 le32toh(sc->sc_c.sc_script[i]), 1817 le32toh(sc->sc_c.sc_script[i+1])); 1818 if ((le32toh(sc->sc_c.sc_script[i]) & 0xe0000000) == 1819 0xc0000000) { 1820 i++; 1821 printf(" 0x%08x", le32toh(sc->sc_c.sc_script[i+1])); 1822 } 1823 printf("\n"); 1824 } 1825 } 1826 1827 void 1828 esiop_morecbd(sc) 1829 struct esiop_softc *sc; 1830 { 1831 int error, i, s; 1832 bus_dma_segment_t seg; 1833 int rseg; 1834 struct esiop_cbd *newcbd; 1835 struct esiop_xfer *xfer; 1836 bus_addr_t dsa; 1837 1838 /* allocate a new list head */ 1839 newcbd = malloc(sizeof(struct esiop_cbd), M_DEVBUF, M_NOWAIT|M_ZERO); 1840 if (newcbd == NULL) { 1841 printf("%s: can't allocate memory for command descriptors " 1842 "head\n", sc->sc_c.sc_dev.dv_xname); 1843 return; 1844 } 1845 1846 /* allocate cmd list */ 1847 newcbd->cmds = malloc(sizeof(struct esiop_cmd) * SIOP_NCMDPB, 1848 M_DEVBUF, M_NOWAIT|M_ZERO); 1849 if (newcbd->cmds == NULL) { 1850 printf("%s: can't allocate memory for command descriptors\n", 1851 sc->sc_c.sc_dev.dv_xname); 1852 goto bad3; 1853 } 1854 error = bus_dmamem_alloc(sc->sc_c.sc_dmat, PAGE_SIZE, PAGE_SIZE, 0, 1855 &seg, 1, &rseg, BUS_DMA_NOWAIT); 1856 if (error) { 1857 printf("%s: unable to allocate cbd DMA memory, error = %d\n", 1858 sc->sc_c.sc_dev.dv_xname, error); 1859 goto bad2; 1860 } 1861 error = bus_dmamem_map(sc->sc_c.sc_dmat, &seg, rseg, PAGE_SIZE, 1862 (caddr_t *)&newcbd->xfers, BUS_DMA_NOWAIT|BUS_DMA_COHERENT); 1863 if (error) { 1864 printf("%s: unable to map cbd DMA memory, error = %d\n", 1865 sc->sc_c.sc_dev.dv_xname, error); 1866 goto bad2; 1867 } 1868 error = bus_dmamap_create(sc->sc_c.sc_dmat, PAGE_SIZE, 1, PAGE_SIZE, 0, 1869 BUS_DMA_NOWAIT, &newcbd->xferdma); 1870 if (error) { 1871 printf("%s: unable to create cbd DMA map, error = %d\n", 1872 sc->sc_c.sc_dev.dv_xname, error); 1873 goto bad1; 1874 } 1875 error = bus_dmamap_load(sc->sc_c.sc_dmat, newcbd->xferdma, 1876 newcbd->xfers, PAGE_SIZE, NULL, BUS_DMA_NOWAIT); 1877 if (error) { 1878 printf("%s: unable to load cbd DMA map, error = %d\n", 1879 sc->sc_c.sc_dev.dv_xname, error); 1880 goto bad0; 1881 } 1882 #ifdef DEBUG 1883 printf("%s: alloc newcdb at PHY addr 0x%lx\n", sc->sc_c.sc_dev.dv_xname, 1884 (unsigned long)newcbd->xferdma->dm_segs[0].ds_addr); 1885 #endif 1886 for (i = 0; i < SIOP_NCMDPB; i++) { 1887 error = bus_dmamap_create(sc->sc_c.sc_dmat, MAXPHYS, SIOP_NSG, 1888 MAXPHYS, 0, BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, 1889 &newcbd->cmds[i].cmd_c.dmamap_data); 1890 if (error) { 1891 printf("%s: unable to create data DMA map for cbd: " 1892 "error %d\n", 1893 sc->sc_c.sc_dev.dv_xname, error); 1894 goto bad0; 1895 } 1896 error = bus_dmamap_create(sc->sc_c.sc_dmat, 1897 sizeof(struct scsipi_generic), 1, 1898 sizeof(struct scsipi_generic), 0, 1899 BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, 1900 &newcbd->cmds[i].cmd_c.dmamap_cmd); 1901 if (error) { 1902 printf("%s: unable to create cmd DMA map for cbd %d\n", 1903 sc->sc_c.sc_dev.dv_xname, error); 1904 goto bad0; 1905 } 1906 newcbd->cmds[i].cmd_c.siop_sc = &sc->sc_c; 1907 newcbd->cmds[i].esiop_cbdp = newcbd; 1908 xfer = &newcbd->xfers[i]; 1909 newcbd->cmds[i].cmd_tables = (struct siop_common_xfer *)xfer; 1910 memset(newcbd->cmds[i].cmd_tables, 0, 1911 sizeof(struct esiop_xfer)); 1912 dsa = newcbd->xferdma->dm_segs[0].ds_addr + 1913 i * sizeof(struct esiop_xfer); 1914 newcbd->cmds[i].cmd_c.dsa = dsa; 1915 newcbd->cmds[i].cmd_c.status = CMDST_FREE; 1916 xfer->siop_tables.t_msgout.count= htole32(1); 1917 xfer->siop_tables.t_msgout.addr = htole32(dsa); 1918 xfer->siop_tables.t_msgin.count= htole32(1); 1919 xfer->siop_tables.t_msgin.addr = htole32(dsa + 1920 offsetof(struct siop_common_xfer, msg_in)); 1921 xfer->siop_tables.t_extmsgin.count= htole32(2); 1922 xfer->siop_tables.t_extmsgin.addr = htole32(dsa + 1923 offsetof(struct siop_common_xfer, msg_in) + 1); 1924 xfer->siop_tables.t_extmsgdata.addr = htole32(dsa + 1925 offsetof(struct siop_common_xfer, msg_in) + 3); 1926 xfer->siop_tables.t_status.count= htole32(1); 1927 xfer->siop_tables.t_status.addr = htole32(dsa + 1928 offsetof(struct siop_common_xfer, status)); 1929 1930 s = splbio(); 1931 TAILQ_INSERT_TAIL(&sc->free_list, &newcbd->cmds[i], next); 1932 splx(s); 1933 #ifdef SIOP_DEBUG 1934 printf("tables[%d]: in=0x%x out=0x%x status=0x%x\n", i, 1935 le32toh(newcbd->cmds[i].cmd_tables->t_msgin.addr), 1936 le32toh(newcbd->cmds[i].cmd_tables->t_msgout.addr), 1937 le32toh(newcbd->cmds[i].cmd_tables->t_status.addr)); 1938 #endif 1939 } 1940 s = splbio(); 1941 TAILQ_INSERT_TAIL(&sc->cmds, newcbd, next); 1942 sc->sc_c.sc_adapt.adapt_openings += SIOP_NCMDPB; 1943 splx(s); 1944 return; 1945 bad0: 1946 bus_dmamap_unload(sc->sc_c.sc_dmat, newcbd->xferdma); 1947 bus_dmamap_destroy(sc->sc_c.sc_dmat, newcbd->xferdma); 1948 bad1: 1949 bus_dmamem_free(sc->sc_c.sc_dmat, &seg, rseg); 1950 bad2: 1951 free(newcbd->cmds, M_DEVBUF); 1952 bad3: 1953 free(newcbd, M_DEVBUF); 1954 return; 1955 } 1956 1957 void 1958 esiop_moretagtbl(sc) 1959 struct esiop_softc *sc; 1960 { 1961 int error, i, j, s; 1962 bus_dma_segment_t seg; 1963 int rseg; 1964 struct esiop_dsatblblk *newtblblk; 1965 struct esiop_dsatbl *newtbls; 1966 u_int32_t *tbls; 1967 1968 /* allocate a new list head */ 1969 newtblblk = malloc(sizeof(struct esiop_dsatblblk), 1970 M_DEVBUF, M_NOWAIT|M_ZERO); 1971 if (newtblblk == NULL) { 1972 printf("%s: can't allocate memory for tag DSA table block\n", 1973 sc->sc_c.sc_dev.dv_xname); 1974 return; 1975 } 1976 1977 /* allocate tbl list */ 1978 newtbls = malloc(sizeof(struct esiop_dsatbl) * ESIOP_NTPB, 1979 M_DEVBUF, M_NOWAIT|M_ZERO); 1980 if (newtbls == NULL) { 1981 printf("%s: can't allocate memory for command descriptors\n", 1982 sc->sc_c.sc_dev.dv_xname); 1983 goto bad3; 1984 } 1985 error = bus_dmamem_alloc(sc->sc_c.sc_dmat, PAGE_SIZE, PAGE_SIZE, 0, 1986 &seg, 1, &rseg, BUS_DMA_NOWAIT); 1987 if (error) { 1988 printf("%s: unable to allocate tbl DMA memory, error = %d\n", 1989 sc->sc_c.sc_dev.dv_xname, error); 1990 goto bad2; 1991 } 1992 error = bus_dmamem_map(sc->sc_c.sc_dmat, &seg, rseg, PAGE_SIZE, 1993 (caddr_t *)&tbls, BUS_DMA_NOWAIT|BUS_DMA_COHERENT); 1994 if (error) { 1995 printf("%s: unable to map tbls DMA memory, error = %d\n", 1996 sc->sc_c.sc_dev.dv_xname, error); 1997 goto bad2; 1998 } 1999 error = bus_dmamap_create(sc->sc_c.sc_dmat, PAGE_SIZE, 1, PAGE_SIZE, 0, 2000 BUS_DMA_NOWAIT, &newtblblk->blkmap); 2001 if (error) { 2002 printf("%s: unable to create tbl DMA map, error = %d\n", 2003 sc->sc_c.sc_dev.dv_xname, error); 2004 goto bad1; 2005 } 2006 error = bus_dmamap_load(sc->sc_c.sc_dmat, newtblblk->blkmap, 2007 tbls, PAGE_SIZE, NULL, BUS_DMA_NOWAIT); 2008 if (error) { 2009 printf("%s: unable to load tbl DMA map, error = %d\n", 2010 sc->sc_c.sc_dev.dv_xname, error); 2011 goto bad0; 2012 } 2013 #ifdef DEBUG 2014 printf("%s: alloc new tag DSA table at PHY addr 0x%lx\n", 2015 sc->sc_c.sc_dev.dv_xname, 2016 (unsigned long)newtblblk->blkmap->dm_segs[0].ds_addr); 2017 #endif 2018 for (i = 0; i < ESIOP_NTPB; i++) { 2019 newtbls[i].tblblk = newtblblk; 2020 newtbls[i].tbl = &tbls[i * ESIOP_NTAG]; 2021 newtbls[i].tbl_offset = i * ESIOP_NTAG * sizeof(u_int32_t); 2022 newtbls[i].tbl_dsa = newtblblk->blkmap->dm_segs[0].ds_addr + 2023 newtbls[i].tbl_offset; 2024 for (j = 0; j < ESIOP_NTAG; j++) 2025 newtbls[i].tbl[j] = j; 2026 s = splbio(); 2027 TAILQ_INSERT_TAIL(&sc->free_tagtbl, &newtbls[i], next); 2028 splx(s); 2029 } 2030 s = splbio(); 2031 TAILQ_INSERT_TAIL(&sc->tag_tblblk, newtblblk, next); 2032 splx(s); 2033 return; 2034 bad0: 2035 bus_dmamap_unload(sc->sc_c.sc_dmat, newtblblk->blkmap); 2036 bus_dmamap_destroy(sc->sc_c.sc_dmat, newtblblk->blkmap); 2037 bad1: 2038 bus_dmamem_free(sc->sc_c.sc_dmat, &seg, rseg); 2039 bad2: 2040 free(newtbls, M_DEVBUF); 2041 bad3: 2042 free(newtblblk, M_DEVBUF); 2043 return; 2044 } 2045 2046 void 2047 esiop_update_scntl3(sc, _siop_target) 2048 struct esiop_softc *sc; 2049 struct siop_common_target *_siop_target; 2050 { 2051 struct esiop_target *esiop_target = (struct esiop_target *)_siop_target; 2052 esiop_script_write(sc, esiop_target->lun_table_offset, 2053 esiop_target->target_c.id); 2054 esiop_script_sync(sc, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2055 } 2056 2057 void 2058 esiop_add_dev(sc, target, lun) 2059 struct esiop_softc *sc; 2060 int target; 2061 int lun; 2062 { 2063 struct esiop_target *esiop_target = 2064 (struct esiop_target *)sc->sc_c.targets[target]; 2065 struct esiop_lun *esiop_lun = esiop_target->esiop_lun[lun]; 2066 2067 /* we need a tag DSA table */ 2068 esiop_lun->lun_tagtbl= TAILQ_FIRST(&sc->free_tagtbl); 2069 if (esiop_lun->lun_tagtbl == NULL) { 2070 esiop_moretagtbl(sc); 2071 esiop_lun->lun_tagtbl= TAILQ_FIRST(&sc->free_tagtbl); 2072 if (esiop_lun->lun_tagtbl == NULL) { 2073 /* no resources, run untagged */ 2074 esiop_target->target_c.flags &= ~TARF_TAG; 2075 return; 2076 } 2077 } 2078 TAILQ_REMOVE(&sc->free_tagtbl, esiop_lun->lun_tagtbl, next); 2079 /* Update LUN DSA table */ 2080 esiop_script_write(sc, esiop_target->lun_table_offset + 2081 lun * 2 + A_target_luntbl_tag / sizeof(u_int32_t), 2082 esiop_lun->lun_tagtbl->tbl_dsa); 2083 esiop_script_sync(sc, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2084 } 2085 2086 void 2087 esiop_del_dev(sc, target, lun) 2088 struct esiop_softc *sc; 2089 int target; 2090 int lun; 2091 { 2092 struct esiop_target *esiop_target; 2093 #ifdef SIOP_DEBUG 2094 printf("%s:%d:%d: free lun sw entry\n", 2095 sc->sc_c.sc_dev.dv_xname, target, lun); 2096 #endif 2097 if (sc->sc_c.targets[target] == NULL) 2098 return; 2099 esiop_target = (struct esiop_target *)sc->sc_c.targets[target]; 2100 free(esiop_target->esiop_lun[lun], M_DEVBUF); 2101 esiop_target->esiop_lun[lun] = NULL; 2102 } 2103 2104 void 2105 esiop_target_register(sc, target) 2106 struct esiop_softc *sc; 2107 u_int32_t target; 2108 { 2109 struct esiop_target *esiop_target = 2110 (struct esiop_target *)sc->sc_c.targets[target]; 2111 struct esiop_lun *esiop_lun; 2112 int lun; 2113 2114 /* get a DSA table for this target */ 2115 esiop_target->lun_table_offset = sc->sc_free_offset; 2116 sc->sc_free_offset += sc->sc_c.sc_chan.chan_nluns * 2 + 2; 2117 #ifdef SIOP_DEBUG 2118 printf("%s: lun table for target %d offset %d free offset %d\n", 2119 sc->sc_c.sc_dev.dv_xname, target, esiop_target->lun_table_offset, 2120 sc->sc_free_offset); 2121 #endif 2122 /* first 32 bytes are ID (for select) */ 2123 esiop_script_write(sc, esiop_target->lun_table_offset, 2124 esiop_target->target_c.id); 2125 /* Record this table in the target DSA table */ 2126 esiop_script_write(sc, 2127 sc->sc_target_table_offset + target, 2128 (esiop_target->lun_table_offset * sizeof(u_int32_t)) + 2129 sc->sc_c.sc_scriptaddr); 2130 /* if we have a tag table, register it */ 2131 for (lun = 0; lun < sc->sc_c.sc_chan.chan_nluns; lun++) { 2132 esiop_lun = esiop_target->esiop_lun[lun]; 2133 if (esiop_lun == NULL) 2134 continue; 2135 if (esiop_lun->lun_tagtbl) 2136 esiop_script_write(sc, esiop_target->lun_table_offset + 2137 lun * 2 + A_target_luntbl_tag / sizeof(u_int32_t), 2138 esiop_lun->lun_tagtbl->tbl_dsa); 2139 } 2140 esiop_script_sync(sc, 2141 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2142 } 2143 2144 #ifdef SIOP_STATS 2145 void 2146 esiop_printstats() 2147 { 2148 printf("esiop_stat_intr %d\n", esiop_stat_intr); 2149 printf("esiop_stat_intr_shortxfer %d\n", esiop_stat_intr_shortxfer); 2150 printf("esiop_stat_intr_xferdisc %d\n", esiop_stat_intr_xferdisc); 2151 printf("esiop_stat_intr_sdp %d\n", esiop_stat_intr_sdp); 2152 printf("esiop_stat_intr_done %d\n", esiop_stat_intr_done); 2153 printf("esiop_stat_intr_lunresel %d\n", esiop_stat_intr_lunresel); 2154 printf("esiop_stat_intr_qfull %d\n", esiop_stat_intr_qfull); 2155 } 2156 #endif 2157
Indexes created Tue Sep 30 17:09:57 GMT 2025