esiop.c revision 1.41
1 /* $NetBSD: esiop.c,v 1.41 2007/10/19 11:59:51 ad 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 1.41 2007/10/19 11:59:51 ad 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 <sys/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 /* 68 #define SIOP_DEBUG 69 #define SIOP_DEBUG_DR 70 #define SIOP_DEBUG_INTR 71 #define SIOP_DEBUG_SCHED 72 #define DUMP_SCRIPT 73 */ 74 75 #define SIOP_STATS 76 77 #ifndef SIOP_DEFAULT_TARGET 78 #define SIOP_DEFAULT_TARGET 7 79 #endif 80 81 /* number of cmd descriptors per block */ 82 #define SIOP_NCMDPB (PAGE_SIZE / sizeof(struct esiop_xfer)) 83 84 void esiop_reset(struct esiop_softc *); 85 void esiop_checkdone(struct esiop_softc *); 86 void esiop_handle_reset(struct esiop_softc *); 87 void esiop_scsicmd_end(struct esiop_cmd *, int); 88 void esiop_unqueue(struct esiop_softc *, int, int); 89 int esiop_handle_qtag_reject(struct esiop_cmd *); 90 static void esiop_start(struct esiop_softc *, struct esiop_cmd *); 91 void esiop_timeout(void *); 92 void esiop_scsipi_request(struct scsipi_channel *, 93 scsipi_adapter_req_t, void *); 94 void esiop_dump_script(struct esiop_softc *); 95 void esiop_morecbd(struct esiop_softc *); 96 void esiop_moretagtbl(struct esiop_softc *); 97 void siop_add_reselsw(struct esiop_softc *, int); 98 void esiop_target_register(struct esiop_softc *, u_int32_t); 99 100 void esiop_update_scntl3(struct esiop_softc *, 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(void); 111 #define INCSTAT(x) x++ 112 #else 113 #define INCSTAT(x) 114 #endif 115 116 static inline void esiop_script_sync(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(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(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 aprint_debug("%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 aprint_error("%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 aprint_error("%s: no memory for command done ring\n", 195 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_saved_offset_offset_Used) / 258 sizeof(E_saved_offset_offset_Used[0])); 259 j++) { 260 bus_space_write_4(sc->sc_c.sc_ramt, sc->sc_c.sc_ramh, 261 E_saved_offset_offset_Used[j] * 4, 262 sizeof(struct siop_common_xfer) + 4); 263 } 264 for (j = 0; j < 265 (sizeof(E_abs_msgin2_Used) / sizeof(E_abs_msgin2_Used[0])); 266 j++) { 267 bus_space_write_4(sc->sc_c.sc_ramt, sc->sc_c.sc_ramh, 268 E_abs_msgin2_Used[j] * 4, msgin_addr); 269 } 270 for (j = 0; j < 271 (sizeof(E_abs_sem_Used) / sizeof(E_abs_sem_Used[0])); 272 j++) { 273 bus_space_write_4(sc->sc_c.sc_ramt, sc->sc_c.sc_ramh, 274 E_abs_sem_Used[j] * 4, sem_addr); 275 } 276 277 if (sc->sc_c.features & SF_CHIP_LED0) { 278 bus_space_write_region_4(sc->sc_c.sc_ramt, 279 sc->sc_c.sc_ramh, 280 Ent_led_on1, esiop_led_on, 281 sizeof(esiop_led_on) / sizeof(esiop_led_on[0])); 282 bus_space_write_region_4(sc->sc_c.sc_ramt, 283 sc->sc_c.sc_ramh, 284 Ent_led_on2, esiop_led_on, 285 sizeof(esiop_led_on) / sizeof(esiop_led_on[0])); 286 bus_space_write_region_4(sc->sc_c.sc_ramt, 287 sc->sc_c.sc_ramh, 288 Ent_led_off, esiop_led_off, 289 sizeof(esiop_led_off) / sizeof(esiop_led_off[0])); 290 } 291 } else { 292 for (j = 0; 293 j < (sizeof(esiop_script) / sizeof(esiop_script[0])); j++) { 294 sc->sc_c.sc_script[j] = htole32(esiop_script[j]); 295 } 296 for (j = 0; j < 297 (sizeof(E_tlq_offset_Used) / sizeof(E_tlq_offset_Used[0])); 298 j++) { 299 sc->sc_c.sc_script[E_tlq_offset_Used[j]] = 300 htole32(sizeof(struct siop_common_xfer)); 301 } 302 for (j = 0; j < 303 (sizeof(E_saved_offset_offset_Used) / 304 sizeof(E_saved_offset_offset_Used[0])); 305 j++) { 306 sc->sc_c.sc_script[E_saved_offset_offset_Used[j]] = 307 htole32(sizeof(struct siop_common_xfer) + 4); 308 } 309 for (j = 0; j < 310 (sizeof(E_abs_msgin2_Used) / sizeof(E_abs_msgin2_Used[0])); 311 j++) { 312 sc->sc_c.sc_script[E_abs_msgin2_Used[j]] = 313 htole32(msgin_addr); 314 } 315 for (j = 0; j < 316 (sizeof(E_abs_sem_Used) / sizeof(E_abs_sem_Used[0])); 317 j++) { 318 sc->sc_c.sc_script[E_abs_sem_Used[j]] = 319 htole32(sem_addr); 320 } 321 322 if (sc->sc_c.features & SF_CHIP_LED0) { 323 for (j = 0; j < (sizeof(esiop_led_on) / 324 sizeof(esiop_led_on[0])); j++) 325 sc->sc_c.sc_script[ 326 Ent_led_on1 / sizeof(esiop_led_on[0]) + j 327 ] = htole32(esiop_led_on[j]); 328 for (j = 0; j < (sizeof(esiop_led_on) / 329 sizeof(esiop_led_on[0])); j++) 330 sc->sc_c.sc_script[ 331 Ent_led_on2 / sizeof(esiop_led_on[0]) + j 332 ] = htole32(esiop_led_on[j]); 333 for (j = 0; j < (sizeof(esiop_led_off) / 334 sizeof(esiop_led_off[0])); j++) 335 sc->sc_c.sc_script[ 336 Ent_led_off / sizeof(esiop_led_off[0]) + j 337 ] = htole32(esiop_led_off[j]); 338 } 339 } 340 /* get base of scheduler ring */ 341 addr = sc->sc_c.sc_scriptaddr + sc->sc_shedoffset * sizeof(u_int32_t); 342 /* init scheduler */ 343 for (i = 0; i < A_ncmd_slots; i++) { 344 esiop_script_write(sc, 345 sc->sc_shedoffset + i * CMD_SLOTSIZE, A_f_cmd_free); 346 } 347 sc->sc_currschedslot = 0; 348 bus_space_write_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_SCRATCHE, 0); 349 bus_space_write_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_SCRATCHD, addr); 350 /* 351 * 0x78000000 is a 'move data8 to reg'. data8 is the second 352 * octet, reg offset is the third. 353 */ 354 esiop_script_write(sc, Ent_cmdr0 / 4, 355 0x78640000 | ((addr & 0x000000ff) << 8)); 356 esiop_script_write(sc, Ent_cmdr1 / 4, 357 0x78650000 | ((addr & 0x0000ff00) )); 358 esiop_script_write(sc, Ent_cmdr2 / 4, 359 0x78660000 | ((addr & 0x00ff0000) >> 8)); 360 esiop_script_write(sc, Ent_cmdr3 / 4, 361 0x78670000 | ((addr & 0xff000000) >> 16)); 362 /* done ring */ 363 for (i = 0; i < A_ndone_slots; i++) 364 sc->sc_done_slot[i] = 0; 365 bus_dmamap_sync(sc->sc_c.sc_dmat, sc->sc_done_map, 366 sc->sc_done_offset, A_ndone_slots * sizeof(u_int32_t), 367 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 368 addr = sc->sc_done_map->dm_segs[0].ds_addr + sc->sc_done_offset; 369 sc->sc_currdoneslot = 0; 370 bus_space_write_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_SCRATCHE + 2, 0); 371 bus_space_write_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_SCRATCHF, addr); 372 esiop_script_write(sc, Ent_doner0 / 4, 373 0x786c0000 | ((addr & 0x000000ff) << 8)); 374 esiop_script_write(sc, Ent_doner1 / 4, 375 0x786d0000 | ((addr & 0x0000ff00) )); 376 esiop_script_write(sc, Ent_doner2 / 4, 377 0x786e0000 | ((addr & 0x00ff0000) >> 8)); 378 esiop_script_write(sc, Ent_doner3 / 4, 379 0x786f0000 | ((addr & 0xff000000) >> 16)); 380 381 /* set flags */ 382 bus_space_write_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_SCRATCHC, 0); 383 /* write pointer of base of target DSA table */ 384 addr = (sc->sc_target_table_offset * sizeof(u_int32_t)) + 385 sc->sc_c.sc_scriptaddr; 386 esiop_script_write(sc, (Ent_load_targtable / 4) + 0, 387 esiop_script_read(sc,(Ent_load_targtable / 4) + 0) | 388 ((addr & 0x000000ff) << 8)); 389 esiop_script_write(sc, (Ent_load_targtable / 4) + 2, 390 esiop_script_read(sc,(Ent_load_targtable / 4) + 2) | 391 ((addr & 0x0000ff00) )); 392 esiop_script_write(sc, (Ent_load_targtable / 4) + 4, 393 esiop_script_read(sc,(Ent_load_targtable / 4) + 4) | 394 ((addr & 0x00ff0000) >> 8)); 395 esiop_script_write(sc, (Ent_load_targtable / 4) + 6, 396 esiop_script_read(sc,(Ent_load_targtable / 4) + 6) | 397 ((addr & 0xff000000) >> 16)); 398 #ifdef SIOP_DEBUG 399 printf("%s: target table offset %d free offset %d\n", 400 sc->sc_c.sc_dev.dv_xname, sc->sc_target_table_offset, 401 sc->sc_free_offset); 402 #endif 403 404 /* register existing targets */ 405 for (i = 0; i < sc->sc_c.sc_chan.chan_ntargets; i++) { 406 if (sc->sc_c.targets[i]) 407 esiop_target_register(sc, i); 408 } 409 /* start script */ 410 if ((sc->sc_c.features & SF_CHIP_RAM) == 0) { 411 bus_dmamap_sync(sc->sc_c.sc_dmat, sc->sc_c.sc_scriptdma, 0, 412 PAGE_SIZE, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 413 } 414 bus_space_write_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_DSP, 415 sc->sc_c.sc_scriptaddr + Ent_reselect); 416 } 417 418 #if 0 419 #define CALL_SCRIPT(ent) do {\ 420 printf ("start script DSA 0x%lx DSP 0x%lx\n", \ 421 esiop_cmd->cmd_c.dsa, \ 422 sc->sc_c.sc_scriptaddr + ent); \ 423 bus_space_write_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_DSP, sc->sc_c.sc_scriptaddr + ent); \ 424 } while (0) 425 #else 426 #define CALL_SCRIPT(ent) do {\ 427 bus_space_write_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_DSP, sc->sc_c.sc_scriptaddr + ent); \ 428 } while (0) 429 #endif 430 431 int 432 esiop_intr(v) 433 void *v; 434 { 435 struct esiop_softc *sc = v; 436 struct esiop_target *esiop_target; 437 struct esiop_cmd *esiop_cmd; 438 struct esiop_lun *esiop_lun; 439 struct scsipi_xfer *xs; 440 int istat, sist, sstat1, dstat = 0; /* XXX: gcc */ 441 u_int32_t irqcode; 442 int need_reset = 0; 443 int offset, target, lun, tag; 444 u_int32_t tflags; 445 u_int32_t addr; 446 int freetarget = 0; 447 int slot; 448 int retval = 0; 449 450 again: 451 istat = bus_space_read_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_ISTAT); 452 if ((istat & (ISTAT_INTF | ISTAT_DIP | ISTAT_SIP)) == 0) { 453 return retval; 454 } 455 retval = 1; 456 INCSTAT(esiop_stat_intr); 457 esiop_checkdone(sc); 458 if (istat & ISTAT_INTF) { 459 bus_space_write_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 460 SIOP_ISTAT, ISTAT_INTF); 461 goto again; 462 } 463 464 if ((istat &(ISTAT_DIP | ISTAT_SIP | ISTAT_ABRT)) == 465 (ISTAT_DIP | ISTAT_ABRT)) { 466 /* clear abort */ 467 bus_space_write_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 468 SIOP_ISTAT, 0); 469 } 470 471 /* get CMD from T/L/Q */ 472 tflags = bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 473 SIOP_SCRATCHC); 474 #ifdef SIOP_DEBUG_INTR 475 printf("interrupt, istat=0x%x tflags=0x%x " 476 "DSA=0x%x DSP=0x%lx\n", istat, tflags, 477 bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_DSA), 478 (u_long)(bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 479 SIOP_DSP) - 480 sc->sc_c.sc_scriptaddr)); 481 #endif 482 target = (tflags & A_f_c_target) ? ((tflags >> 8) & 0xff) : -1; 483 if (target > sc->sc_c.sc_chan.chan_ntargets) target = -1; 484 lun = (tflags & A_f_c_lun) ? ((tflags >> 16) & 0xff) : -1; 485 if (lun > sc->sc_c.sc_chan.chan_nluns) lun = -1; 486 tag = (tflags & A_f_c_tag) ? ((tflags >> 24) & 0xff) : -1; 487 488 if (target >= 0 && lun >= 0) { 489 esiop_target = (struct esiop_target *)sc->sc_c.targets[target]; 490 if (esiop_target == NULL) { 491 printf("esiop_target (target %d) not valid\n", target); 492 goto none; 493 } 494 esiop_lun = esiop_target->esiop_lun[lun]; 495 if (esiop_lun == NULL) { 496 printf("esiop_lun (target %d lun %d) not valid\n", 497 target, lun); 498 goto none; 499 } 500 esiop_cmd = 501 (tag >= 0) ? esiop_lun->tactive[tag] : esiop_lun->active; 502 if (esiop_cmd == NULL) { 503 printf("esiop_cmd (target %d lun %d tag %d) not valid\n", 504 target, lun, tag); 505 goto none; 506 } 507 xs = esiop_cmd->cmd_c.xs; 508 #ifdef DIAGNOSTIC 509 if (esiop_cmd->cmd_c.status != CMDST_ACTIVE) { 510 printf("esiop_cmd (target %d lun %d) " 511 "not active (%d)\n", target, lun, 512 esiop_cmd->cmd_c.status); 513 goto none; 514 } 515 #endif 516 esiop_table_sync(esiop_cmd, 517 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 518 } else { 519 none: 520 xs = NULL; 521 esiop_target = NULL; 522 esiop_lun = NULL; 523 esiop_cmd = NULL; 524 } 525 if (istat & ISTAT_DIP) { 526 dstat = bus_space_read_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 527 SIOP_DSTAT); 528 if (dstat & DSTAT_ABRT) { 529 /* was probably generated by a bus reset IOCTL */ 530 if ((dstat & DSTAT_DFE) == 0) 531 siop_clearfifo(&sc->sc_c); 532 goto reset; 533 } 534 if (dstat & DSTAT_SSI) { 535 printf("single step dsp 0x%08x dsa 0x08%x\n", 536 (int)(bus_space_read_4(sc->sc_c.sc_rt, 537 sc->sc_c.sc_rh, SIOP_DSP) - 538 sc->sc_c.sc_scriptaddr), 539 bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 540 SIOP_DSA)); 541 if ((dstat & ~(DSTAT_DFE | DSTAT_SSI)) == 0 && 542 (istat & ISTAT_SIP) == 0) { 543 bus_space_write_1(sc->sc_c.sc_rt, 544 sc->sc_c.sc_rh, SIOP_DCNTL, 545 bus_space_read_1(sc->sc_c.sc_rt, 546 sc->sc_c.sc_rh, SIOP_DCNTL) | DCNTL_STD); 547 } 548 return 1; 549 } 550 551 if (dstat & ~(DSTAT_SIR | DSTAT_DFE | DSTAT_SSI)) { 552 printf("%s: DMA IRQ:", sc->sc_c.sc_dev.dv_xname); 553 if (dstat & DSTAT_IID) 554 printf(" Illegal instruction"); 555 if (dstat & DSTAT_BF) 556 printf(" bus fault"); 557 if (dstat & DSTAT_MDPE) 558 printf(" parity"); 559 if (dstat & DSTAT_DFE) 560 printf(" DMA fifo empty"); 561 else 562 siop_clearfifo(&sc->sc_c); 563 printf(", DSP=0x%x DSA=0x%x: ", 564 (int)(bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 565 SIOP_DSP) - sc->sc_c.sc_scriptaddr), 566 bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_DSA)); 567 if (esiop_cmd) 568 printf("T/L/Q=%d/%d/%d last msg_in=0x%x status=0x%x\n", 569 target, lun, tag, esiop_cmd->cmd_tables->msg_in[0], 570 le32toh(esiop_cmd->cmd_tables->status)); 571 else 572 printf(" current T/L/Q invalid\n"); 573 need_reset = 1; 574 } 575 } 576 if (istat & ISTAT_SIP) { 577 if (istat & ISTAT_DIP) 578 delay(10); 579 /* 580 * Can't read sist0 & sist1 independently, or we have to 581 * insert delay 582 */ 583 sist = bus_space_read_2(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 584 SIOP_SIST0); 585 sstat1 = bus_space_read_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 586 SIOP_SSTAT1); 587 #ifdef SIOP_DEBUG_INTR 588 printf("scsi interrupt, sist=0x%x sstat1=0x%x " 589 "DSA=0x%x DSP=0x%lx\n", sist, sstat1, 590 bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_DSA), 591 (u_long)(bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 592 SIOP_DSP) - 593 sc->sc_c.sc_scriptaddr)); 594 #endif 595 if (sist & SIST0_RST) { 596 esiop_handle_reset(sc); 597 /* no table to flush here */ 598 return 1; 599 } 600 if (sist & SIST0_SGE) { 601 if (esiop_cmd) 602 scsipi_printaddr(xs->xs_periph); 603 else 604 printf("%s:", sc->sc_c.sc_dev.dv_xname); 605 printf("scsi gross error\n"); 606 if (esiop_target) 607 esiop_target->target_c.flags &= ~TARF_DT; 608 #ifdef DEBUG 609 printf("DSA=0x%x DSP=0x%lx\n", 610 bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_DSA), 611 (u_long)(bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 612 SIOP_DSP) - 613 sc->sc_c.sc_scriptaddr)); 614 printf("SDID 0x%x SCNTL3 0x%x SXFER 0x%x SCNTL4 0x%x\n", 615 bus_space_read_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_SDID), 616 bus_space_read_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_SCNTL3), 617 bus_space_read_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_SXFER), 618 bus_space_read_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_SCNTL4)); 619 620 #endif 621 goto reset; 622 } 623 if ((sist & SIST0_MA) && need_reset == 0) { 624 if (esiop_cmd) { 625 int scratchc0; 626 dstat = bus_space_read_1(sc->sc_c.sc_rt, 627 sc->sc_c.sc_rh, SIOP_DSTAT); 628 /* 629 * first restore DSA, in case we were in a S/G 630 * operation. 631 */ 632 bus_space_write_4(sc->sc_c.sc_rt, 633 sc->sc_c.sc_rh, 634 SIOP_DSA, esiop_cmd->cmd_c.dsa); 635 scratchc0 = bus_space_read_1(sc->sc_c.sc_rt, 636 sc->sc_c.sc_rh, SIOP_SCRATCHC); 637 switch (sstat1 & SSTAT1_PHASE_MASK) { 638 case SSTAT1_PHASE_STATUS: 639 /* 640 * previous phase may be aborted for any reason 641 * ( for example, the target has less data to 642 * transfer than requested). Compute resid and 643 * just go to status, the command should 644 * terminate. 645 */ 646 INCSTAT(esiop_stat_intr_shortxfer); 647 if (scratchc0 & A_f_c_data) 648 siop_ma(&esiop_cmd->cmd_c); 649 else if ((dstat & DSTAT_DFE) == 0) 650 siop_clearfifo(&sc->sc_c); 651 CALL_SCRIPT(Ent_status); 652 return 1; 653 case SSTAT1_PHASE_MSGIN: 654 /* 655 * target may be ready to disconnect 656 * Compute resid which would be used later 657 * if a save data pointer is needed. 658 */ 659 INCSTAT(esiop_stat_intr_xferdisc); 660 if (scratchc0 & A_f_c_data) 661 siop_ma(&esiop_cmd->cmd_c); 662 else if ((dstat & DSTAT_DFE) == 0) 663 siop_clearfifo(&sc->sc_c); 664 bus_space_write_1(sc->sc_c.sc_rt, 665 sc->sc_c.sc_rh, SIOP_SCRATCHC, 666 scratchc0 & ~A_f_c_data); 667 CALL_SCRIPT(Ent_msgin); 668 return 1; 669 } 670 printf("%s: unexpected phase mismatch %d\n", 671 sc->sc_c.sc_dev.dv_xname, 672 sstat1 & SSTAT1_PHASE_MASK); 673 } else { 674 printf("%s: phase mismatch without command\n", 675 sc->sc_c.sc_dev.dv_xname); 676 } 677 need_reset = 1; 678 } 679 if (sist & SIST0_PAR) { 680 /* parity error, reset */ 681 if (esiop_cmd) 682 scsipi_printaddr(xs->xs_periph); 683 else 684 printf("%s:", sc->sc_c.sc_dev.dv_xname); 685 printf("parity error\n"); 686 if (esiop_target) 687 esiop_target->target_c.flags &= ~TARF_DT; 688 goto reset; 689 } 690 if ((sist & (SIST1_STO << 8)) && need_reset == 0) { 691 /* 692 * selection time out, assume there's no device here 693 * We also have to update the ring pointer ourselve 694 */ 695 slot = bus_space_read_1(sc->sc_c.sc_rt, 696 sc->sc_c.sc_rh, SIOP_SCRATCHE); 697 esiop_script_sync(sc, 698 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 699 #ifdef SIOP_DEBUG_SCHED 700 printf("sel timeout target %d, slot %d\n", target, slot); 701 #endif 702 /* 703 * mark this slot as free, and advance to next slot 704 */ 705 esiop_script_write(sc, 706 sc->sc_shedoffset + slot * CMD_SLOTSIZE, 707 A_f_cmd_free); 708 addr = bus_space_read_4(sc->sc_c.sc_rt, 709 sc->sc_c.sc_rh, SIOP_SCRATCHD); 710 if (slot < (A_ncmd_slots - 1)) { 711 bus_space_write_1(sc->sc_c.sc_rt, 712 sc->sc_c.sc_rh, SIOP_SCRATCHE, slot + 1); 713 addr = addr + sizeof(struct esiop_slot); 714 } else { 715 bus_space_write_1(sc->sc_c.sc_rt, 716 sc->sc_c.sc_rh, SIOP_SCRATCHE, 0); 717 addr = sc->sc_c.sc_scriptaddr + 718 sc->sc_shedoffset * sizeof(u_int32_t); 719 } 720 bus_space_write_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 721 SIOP_SCRATCHD, addr); 722 esiop_script_sync(sc, 723 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 724 if (esiop_cmd) { 725 esiop_cmd->cmd_c.status = CMDST_DONE; 726 xs->error = XS_SELTIMEOUT; 727 freetarget = 1; 728 goto end; 729 } else { 730 printf("%s: selection timeout without " 731 "command, target %d (sdid 0x%x), " 732 "slot %d\n", 733 sc->sc_c.sc_dev.dv_xname, target, 734 bus_space_read_1(sc->sc_c.sc_rt, 735 sc->sc_c.sc_rh, SIOP_SDID), slot); 736 need_reset = 1; 737 } 738 } 739 if (sist & SIST0_UDC) { 740 /* 741 * unexpected disconnect. Usually the target signals 742 * a fatal condition this way. Attempt to get sense. 743 */ 744 if (esiop_cmd) { 745 esiop_cmd->cmd_tables->status = 746 htole32(SCSI_CHECK); 747 goto end; 748 } 749 printf("%s: unexpected disconnect without " 750 "command\n", sc->sc_c.sc_dev.dv_xname); 751 goto reset; 752 } 753 if (sist & (SIST1_SBMC << 8)) { 754 /* SCSI bus mode change */ 755 if (siop_modechange(&sc->sc_c) == 0 || need_reset == 1) 756 goto reset; 757 if ((istat & ISTAT_DIP) && (dstat & DSTAT_SIR)) { 758 /* 759 * we have a script interrupt, it will 760 * restart the script. 761 */ 762 goto scintr; 763 } 764 /* 765 * else we have to restart it ourselve, at the 766 * interrupted instruction. 767 */ 768 bus_space_write_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 769 SIOP_DSP, 770 bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 771 SIOP_DSP) - 8); 772 return 1; 773 } 774 /* Else it's an unhandled exception (for now). */ 775 printf("%s: unhandled scsi interrupt, sist=0x%x sstat1=0x%x " 776 "DSA=0x%x DSP=0x%x\n", sc->sc_c.sc_dev.dv_xname, sist, 777 bus_space_read_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 778 SIOP_SSTAT1), 779 bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_DSA), 780 (int)(bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 781 SIOP_DSP) - sc->sc_c.sc_scriptaddr)); 782 if (esiop_cmd) { 783 esiop_cmd->cmd_c.status = CMDST_DONE; 784 xs->error = XS_SELTIMEOUT; 785 goto end; 786 } 787 need_reset = 1; 788 } 789 if (need_reset) { 790 reset: 791 /* fatal error, reset the bus */ 792 siop_resetbus(&sc->sc_c); 793 /* no table to flush here */ 794 return 1; 795 } 796 797 scintr: 798 if ((istat & ISTAT_DIP) && (dstat & DSTAT_SIR)) { /* script interrupt */ 799 irqcode = bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 800 SIOP_DSPS); 801 #ifdef SIOP_DEBUG_INTR 802 printf("script interrupt 0x%x\n", irqcode); 803 #endif 804 /* 805 * no command, or an inactive command is only valid for a 806 * reselect interrupt 807 */ 808 if ((irqcode & 0x80) == 0) { 809 if (esiop_cmd == NULL) { 810 printf( 811 "%s: script interrupt (0x%x) with invalid DSA !!!\n", 812 sc->sc_c.sc_dev.dv_xname, irqcode); 813 goto reset; 814 } 815 if (esiop_cmd->cmd_c.status != CMDST_ACTIVE) { 816 printf("%s: command with invalid status " 817 "(IRQ code 0x%x current status %d) !\n", 818 sc->sc_c.sc_dev.dv_xname, 819 irqcode, esiop_cmd->cmd_c.status); 820 xs = NULL; 821 } 822 } 823 switch(irqcode) { 824 case A_int_err: 825 printf("error, DSP=0x%x\n", 826 (int)(bus_space_read_4(sc->sc_c.sc_rt, 827 sc->sc_c.sc_rh, SIOP_DSP) - sc->sc_c.sc_scriptaddr)); 828 if (xs) { 829 xs->error = XS_SELTIMEOUT; 830 goto end; 831 } else { 832 goto reset; 833 } 834 case A_int_msgin: 835 { 836 int msgin = bus_space_read_1(sc->sc_c.sc_rt, 837 sc->sc_c.sc_rh, SIOP_SFBR); 838 if (msgin == MSG_MESSAGE_REJECT) { 839 int msg, extmsg; 840 if (esiop_cmd->cmd_tables->msg_out[0] & 0x80) { 841 /* 842 * message was part of a identify + 843 * something else. Identify shouldn't 844 * have been rejected. 845 */ 846 msg = 847 esiop_cmd->cmd_tables->msg_out[1]; 848 extmsg = 849 esiop_cmd->cmd_tables->msg_out[3]; 850 } else { 851 msg = 852 esiop_cmd->cmd_tables->msg_out[0]; 853 extmsg = 854 esiop_cmd->cmd_tables->msg_out[2]; 855 } 856 if (msg == MSG_MESSAGE_REJECT) { 857 /* MSG_REJECT for a MSG_REJECT !*/ 858 if (xs) 859 scsipi_printaddr(xs->xs_periph); 860 else 861 printf("%s: ", 862 sc->sc_c.sc_dev.dv_xname); 863 printf("our reject message was " 864 "rejected\n"); 865 goto reset; 866 } 867 if (msg == MSG_EXTENDED && 868 extmsg == MSG_EXT_WDTR) { 869 /* WDTR rejected, initiate sync */ 870 if ((esiop_target->target_c.flags & 871 TARF_SYNC) == 0) { 872 esiop_target->target_c.status = 873 TARST_OK; 874 siop_update_xfer_mode(&sc->sc_c, 875 target); 876 /* no table to flush here */ 877 CALL_SCRIPT(Ent_msgin_ack); 878 return 1; 879 } 880 esiop_target->target_c.status = 881 TARST_SYNC_NEG; 882 siop_sdtr_msg(&esiop_cmd->cmd_c, 0, 883 sc->sc_c.st_minsync, 884 sc->sc_c.maxoff); 885 esiop_table_sync(esiop_cmd, 886 BUS_DMASYNC_PREREAD | 887 BUS_DMASYNC_PREWRITE); 888 CALL_SCRIPT(Ent_send_msgout); 889 return 1; 890 } else if (msg == MSG_EXTENDED && 891 extmsg == MSG_EXT_SDTR) { 892 /* sync rejected */ 893 esiop_target->target_c.offset = 0; 894 esiop_target->target_c.period = 0; 895 esiop_target->target_c.status = 896 TARST_OK; 897 siop_update_xfer_mode(&sc->sc_c, 898 target); 899 /* no table to flush here */ 900 CALL_SCRIPT(Ent_msgin_ack); 901 return 1; 902 } else if (msg == MSG_EXTENDED && 903 extmsg == MSG_EXT_PPR) { 904 /* PPR rejected */ 905 esiop_target->target_c.offset = 0; 906 esiop_target->target_c.period = 0; 907 esiop_target->target_c.status = 908 TARST_OK; 909 siop_update_xfer_mode(&sc->sc_c, 910 target); 911 /* no table to flush here */ 912 CALL_SCRIPT(Ent_msgin_ack); 913 return 1; 914 } else if (msg == MSG_SIMPLE_Q_TAG || 915 msg == MSG_HEAD_OF_Q_TAG || 916 msg == MSG_ORDERED_Q_TAG) { 917 if (esiop_handle_qtag_reject( 918 esiop_cmd) == -1) 919 goto reset; 920 CALL_SCRIPT(Ent_msgin_ack); 921 return 1; 922 } 923 if (xs) 924 scsipi_printaddr(xs->xs_periph); 925 else 926 printf("%s: ", 927 sc->sc_c.sc_dev.dv_xname); 928 if (msg == MSG_EXTENDED) { 929 printf("scsi message reject, extended " 930 "message sent was 0x%x\n", extmsg); 931 } else { 932 printf("scsi message reject, message " 933 "sent was 0x%x\n", msg); 934 } 935 /* no table to flush here */ 936 CALL_SCRIPT(Ent_msgin_ack); 937 return 1; 938 } 939 if (msgin == MSG_IGN_WIDE_RESIDUE) { 940 /* use the extmsgdata table to get the second byte */ 941 esiop_cmd->cmd_tables->t_extmsgdata.count = 942 htole32(1); 943 esiop_table_sync(esiop_cmd, 944 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 945 CALL_SCRIPT(Ent_get_extmsgdata); 946 return 1; 947 } 948 if (xs) 949 scsipi_printaddr(xs->xs_periph); 950 else 951 printf("%s: ", sc->sc_c.sc_dev.dv_xname); 952 printf("unhandled message 0x%x\n", msgin); 953 esiop_cmd->cmd_tables->msg_out[0] = MSG_MESSAGE_REJECT; 954 esiop_cmd->cmd_tables->t_msgout.count= htole32(1); 955 esiop_table_sync(esiop_cmd, 956 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 957 CALL_SCRIPT(Ent_send_msgout); 958 return 1; 959 } 960 case A_int_extmsgin: 961 #ifdef SIOP_DEBUG_INTR 962 printf("extended message: msg 0x%x len %d\n", 963 esiop_cmd->cmd_tables->msg_in[2], 964 esiop_cmd->cmd_tables->msg_in[1]); 965 #endif 966 if (esiop_cmd->cmd_tables->msg_in[1] > 967 sizeof(esiop_cmd->cmd_tables->msg_in) - 2) 968 printf("%s: extended message too big (%d)\n", 969 sc->sc_c.sc_dev.dv_xname, 970 esiop_cmd->cmd_tables->msg_in[1]); 971 esiop_cmd->cmd_tables->t_extmsgdata.count = 972 htole32(esiop_cmd->cmd_tables->msg_in[1] - 1); 973 esiop_table_sync(esiop_cmd, 974 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 975 CALL_SCRIPT(Ent_get_extmsgdata); 976 return 1; 977 case A_int_extmsgdata: 978 #ifdef SIOP_DEBUG_INTR 979 { 980 int i; 981 printf("extended message: 0x%x, data:", 982 esiop_cmd->cmd_tables->msg_in[2]); 983 for (i = 3; i < 2 + esiop_cmd->cmd_tables->msg_in[1]; 984 i++) 985 printf(" 0x%x", 986 esiop_cmd->cmd_tables->msg_in[i]); 987 printf("\n"); 988 } 989 #endif 990 if (esiop_cmd->cmd_tables->msg_in[0] == 991 MSG_IGN_WIDE_RESIDUE) { 992 /* we got the second byte of MSG_IGN_WIDE_RESIDUE */ 993 if (esiop_cmd->cmd_tables->msg_in[3] != 1) 994 printf("MSG_IGN_WIDE_RESIDUE: " 995 "bad len %d\n", 996 esiop_cmd->cmd_tables->msg_in[3]); 997 switch (siop_iwr(&esiop_cmd->cmd_c)) { 998 case SIOP_NEG_MSGOUT: 999 esiop_table_sync(esiop_cmd, 1000 BUS_DMASYNC_PREREAD | 1001 BUS_DMASYNC_PREWRITE); 1002 CALL_SCRIPT(Ent_send_msgout); 1003 return 1; 1004 case SIOP_NEG_ACK: 1005 CALL_SCRIPT(Ent_msgin_ack); 1006 return 1; 1007 default: 1008 panic("invalid retval from " 1009 "siop_iwr()"); 1010 } 1011 return 1; 1012 } 1013 if (esiop_cmd->cmd_tables->msg_in[2] == MSG_EXT_PPR) { 1014 switch (siop_ppr_neg(&esiop_cmd->cmd_c)) { 1015 case SIOP_NEG_MSGOUT: 1016 esiop_update_scntl3(sc, 1017 esiop_cmd->cmd_c.siop_target); 1018 esiop_table_sync(esiop_cmd, 1019 BUS_DMASYNC_PREREAD | 1020 BUS_DMASYNC_PREWRITE); 1021 CALL_SCRIPT(Ent_send_msgout); 1022 return 1; 1023 case SIOP_NEG_ACK: 1024 esiop_update_scntl3(sc, 1025 esiop_cmd->cmd_c.siop_target); 1026 CALL_SCRIPT(Ent_msgin_ack); 1027 return 1; 1028 default: 1029 panic("invalid retval from " 1030 "siop_wdtr_neg()"); 1031 } 1032 return 1; 1033 } 1034 if (esiop_cmd->cmd_tables->msg_in[2] == MSG_EXT_WDTR) { 1035 switch (siop_wdtr_neg(&esiop_cmd->cmd_c)) { 1036 case SIOP_NEG_MSGOUT: 1037 esiop_update_scntl3(sc, 1038 esiop_cmd->cmd_c.siop_target); 1039 esiop_table_sync(esiop_cmd, 1040 BUS_DMASYNC_PREREAD | 1041 BUS_DMASYNC_PREWRITE); 1042 CALL_SCRIPT(Ent_send_msgout); 1043 return 1; 1044 case SIOP_NEG_ACK: 1045 esiop_update_scntl3(sc, 1046 esiop_cmd->cmd_c.siop_target); 1047 CALL_SCRIPT(Ent_msgin_ack); 1048 return 1; 1049 default: 1050 panic("invalid retval from " 1051 "siop_wdtr_neg()"); 1052 } 1053 return 1; 1054 } 1055 if (esiop_cmd->cmd_tables->msg_in[2] == MSG_EXT_SDTR) { 1056 switch (siop_sdtr_neg(&esiop_cmd->cmd_c)) { 1057 case SIOP_NEG_MSGOUT: 1058 esiop_update_scntl3(sc, 1059 esiop_cmd->cmd_c.siop_target); 1060 esiop_table_sync(esiop_cmd, 1061 BUS_DMASYNC_PREREAD | 1062 BUS_DMASYNC_PREWRITE); 1063 CALL_SCRIPT(Ent_send_msgout); 1064 return 1; 1065 case SIOP_NEG_ACK: 1066 esiop_update_scntl3(sc, 1067 esiop_cmd->cmd_c.siop_target); 1068 CALL_SCRIPT(Ent_msgin_ack); 1069 return 1; 1070 default: 1071 panic("invalid retval from " 1072 "siop_wdtr_neg()"); 1073 } 1074 return 1; 1075 } 1076 /* send a message reject */ 1077 esiop_cmd->cmd_tables->msg_out[0] = MSG_MESSAGE_REJECT; 1078 esiop_cmd->cmd_tables->t_msgout.count = htole32(1); 1079 esiop_table_sync(esiop_cmd, 1080 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1081 CALL_SCRIPT(Ent_send_msgout); 1082 return 1; 1083 case A_int_disc: 1084 INCSTAT(esiop_stat_intr_sdp); 1085 offset = bus_space_read_1(sc->sc_c.sc_rt, 1086 sc->sc_c.sc_rh, SIOP_SCRATCHA + 1); 1087 #ifdef SIOP_DEBUG_DR 1088 printf("disconnect offset %d\n", offset); 1089 #endif 1090 siop_sdp(&esiop_cmd->cmd_c, offset); 1091 /* we start again with no offset */ 1092 ESIOP_XFER(esiop_cmd, saved_offset) = 1093 htole32(SIOP_NOOFFSET); 1094 esiop_table_sync(esiop_cmd, 1095 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1096 CALL_SCRIPT(Ent_script_sched); 1097 return 1; 1098 case A_int_resfail: 1099 printf("reselect failed\n"); 1100 CALL_SCRIPT(Ent_script_sched); 1101 return 1; 1102 case A_int_done: 1103 if (xs == NULL) { 1104 printf("%s: done without command\n", 1105 sc->sc_c.sc_dev.dv_xname); 1106 CALL_SCRIPT(Ent_script_sched); 1107 return 1; 1108 } 1109 #ifdef SIOP_DEBUG_INTR 1110 printf("done, DSA=0x%lx target id 0x%x last msg " 1111 "in=0x%x status=0x%x\n", (u_long)esiop_cmd->cmd_c.dsa, 1112 le32toh(esiop_cmd->cmd_tables->id), 1113 esiop_cmd->cmd_tables->msg_in[0], 1114 le32toh(esiop_cmd->cmd_tables->status)); 1115 #endif 1116 INCSTAT(esiop_stat_intr_done); 1117 esiop_cmd->cmd_c.status = CMDST_DONE; 1118 goto end; 1119 default: 1120 printf("unknown irqcode %x\n", irqcode); 1121 if (xs) { 1122 xs->error = XS_SELTIMEOUT; 1123 goto end; 1124 } 1125 goto reset; 1126 } 1127 return 1; 1128 } 1129 /* We just should't get there */ 1130 panic("siop_intr: I shouldn't be there !"); 1131 1132 end: 1133 /* 1134 * restart the script now if command completed properly 1135 * Otherwise wait for siop_scsicmd_end(), we may need to cleanup the 1136 * queue 1137 */ 1138 xs->status = le32toh(esiop_cmd->cmd_tables->status); 1139 #ifdef SIOP_DEBUG_INTR 1140 printf("esiop_intr end: status %d\n", xs->status); 1141 #endif 1142 if (tag >= 0) 1143 esiop_lun->tactive[tag] = NULL; 1144 else 1145 esiop_lun->active = NULL; 1146 offset = bus_space_read_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 1147 SIOP_SCRATCHA + 1); 1148 /* 1149 * if we got a disconnect between the last data phase 1150 * and the status phase, offset will be 0. In this 1151 * case, cmd_tables->saved_offset will have the proper value 1152 * if it got updated by the controller 1153 */ 1154 if (offset == 0 && 1155 ESIOP_XFER(esiop_cmd, saved_offset) != htole32(SIOP_NOOFFSET)) 1156 offset = 1157 (le32toh(ESIOP_XFER(esiop_cmd, saved_offset)) >> 8) & 0xff; 1158 1159 esiop_scsicmd_end(esiop_cmd, offset); 1160 if (freetarget && esiop_target->target_c.status == TARST_PROBING) 1161 esiop_del_dev(sc, target, lun); 1162 CALL_SCRIPT(Ent_script_sched); 1163 return 1; 1164 } 1165 1166 void 1167 esiop_scsicmd_end(esiop_cmd, offset) 1168 struct esiop_cmd *esiop_cmd; 1169 int offset; 1170 { 1171 struct scsipi_xfer *xs = esiop_cmd->cmd_c.xs; 1172 struct esiop_softc *sc = (struct esiop_softc *)esiop_cmd->cmd_c.siop_sc; 1173 1174 siop_update_resid(&esiop_cmd->cmd_c, offset); 1175 1176 switch(xs->status) { 1177 case SCSI_OK: 1178 xs->error = XS_NOERROR; 1179 break; 1180 case SCSI_BUSY: 1181 xs->error = XS_BUSY; 1182 break; 1183 case SCSI_CHECK: 1184 xs->error = XS_BUSY; 1185 /* remove commands in the queue and scheduler */ 1186 esiop_unqueue(sc, xs->xs_periph->periph_target, 1187 xs->xs_periph->periph_lun); 1188 break; 1189 case SCSI_QUEUE_FULL: 1190 INCSTAT(esiop_stat_intr_qfull); 1191 #ifdef SIOP_DEBUG 1192 printf("%s:%d:%d: queue full (tag %d)\n", 1193 sc->sc_c.sc_dev.dv_xname, 1194 xs->xs_periph->periph_target, 1195 xs->xs_periph->periph_lun, esiop_cmd->cmd_c.tag); 1196 #endif 1197 xs->error = XS_BUSY; 1198 break; 1199 case SCSI_SIOP_NOCHECK: 1200 /* 1201 * don't check status, xs->error is already valid 1202 */ 1203 break; 1204 case SCSI_SIOP_NOSTATUS: 1205 /* 1206 * the status byte was not updated, cmd was 1207 * aborted 1208 */ 1209 xs->error = XS_SELTIMEOUT; 1210 break; 1211 default: 1212 scsipi_printaddr(xs->xs_periph); 1213 printf("invalid status code %d\n", xs->status); 1214 xs->error = XS_DRIVER_STUFFUP; 1215 } 1216 if (xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT)) { 1217 bus_dmamap_sync(sc->sc_c.sc_dmat, 1218 esiop_cmd->cmd_c.dmamap_data, 0, 1219 esiop_cmd->cmd_c.dmamap_data->dm_mapsize, 1220 (xs->xs_control & XS_CTL_DATA_IN) ? 1221 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 1222 bus_dmamap_unload(sc->sc_c.sc_dmat, 1223 esiop_cmd->cmd_c.dmamap_data); 1224 } 1225 bus_dmamap_unload(sc->sc_c.sc_dmat, esiop_cmd->cmd_c.dmamap_cmd); 1226 if ((xs->xs_control & XS_CTL_POLL) == 0) 1227 callout_stop(&xs->xs_callout); 1228 esiop_cmd->cmd_c.status = CMDST_FREE; 1229 TAILQ_INSERT_TAIL(&sc->free_list, esiop_cmd, next); 1230 #if 0 1231 if (xs->resid != 0) 1232 printf("resid %d datalen %d\n", xs->resid, xs->datalen); 1233 #endif 1234 scsipi_done (xs); 1235 } 1236 1237 void 1238 esiop_checkdone(sc) 1239 struct esiop_softc *sc; 1240 { 1241 int target, lun, tag; 1242 struct esiop_target *esiop_target; 1243 struct esiop_lun *esiop_lun; 1244 struct esiop_cmd *esiop_cmd; 1245 u_int32_t slot; 1246 int needsync = 0; 1247 int status; 1248 u_int32_t sem, offset; 1249 1250 esiop_script_sync(sc, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1251 sem = esiop_script_read(sc, sc->sc_semoffset); 1252 esiop_script_write(sc, sc->sc_semoffset, sem & ~A_sem_done); 1253 if ((sc->sc_flags & SCF_CHAN_NOSLOT) && (sem & A_sem_start)) { 1254 /* 1255 * at last one command have been started, 1256 * so we should have free slots now 1257 */ 1258 sc->sc_flags &= ~SCF_CHAN_NOSLOT; 1259 scsipi_channel_thaw(&sc->sc_c.sc_chan, 1); 1260 } 1261 esiop_script_sync(sc, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1262 1263 if ((sem & A_sem_done) == 0) { 1264 /* no pending done command */ 1265 return; 1266 } 1267 1268 bus_dmamap_sync(sc->sc_c.sc_dmat, sc->sc_done_map, 1269 sc->sc_done_offset, A_ndone_slots * sizeof(u_int32_t), 1270 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1271 next: 1272 if (sc->sc_done_slot[sc->sc_currdoneslot] == 0) { 1273 if (needsync) 1274 bus_dmamap_sync(sc->sc_c.sc_dmat, sc->sc_done_map, 1275 sc->sc_done_offset, 1276 A_ndone_slots * sizeof(u_int32_t), 1277 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1278 return; 1279 } 1280 1281 needsync = 1; 1282 1283 slot = htole32(sc->sc_done_slot[sc->sc_currdoneslot]); 1284 sc->sc_done_slot[sc->sc_currdoneslot] = 0; 1285 sc->sc_currdoneslot += 1; 1286 if (sc->sc_currdoneslot == A_ndone_slots) 1287 sc->sc_currdoneslot = 0; 1288 1289 target = (slot & A_f_c_target) ? (slot >> 8) & 0xff : -1; 1290 lun = (slot & A_f_c_lun) ? (slot >> 16) & 0xff : -1; 1291 tag = (slot & A_f_c_tag) ? (slot >> 24) & 0xff : -1; 1292 1293 esiop_target = (target >= 0) ? 1294 (struct esiop_target *)sc->sc_c.targets[target] : NULL; 1295 if (esiop_target == NULL) { 1296 printf("esiop_target (target %d) not valid\n", target); 1297 goto next; 1298 } 1299 esiop_lun = (lun >= 0) ? esiop_target->esiop_lun[lun] : NULL; 1300 if (esiop_lun == NULL) { 1301 printf("esiop_lun (target %d lun %d) not valid\n", 1302 target, lun); 1303 goto next; 1304 } 1305 esiop_cmd = (tag >= 0) ? esiop_lun->tactive[tag] : esiop_lun->active; 1306 if (esiop_cmd == NULL) { 1307 printf("esiop_cmd (target %d lun %d tag %d) not valid\n", 1308 target, lun, tag); 1309 goto next; 1310 } 1311 1312 esiop_table_sync(esiop_cmd, 1313 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1314 status = le32toh(esiop_cmd->cmd_tables->status); 1315 #ifdef DIAGNOSTIC 1316 if (status != SCSI_OK) { 1317 printf("command for T/L/Q %d/%d/%d status %d\n", 1318 target, lun, tag, status); 1319 goto next; 1320 } 1321 1322 #endif 1323 /* Ok, this command has been handled */ 1324 esiop_cmd->cmd_c.xs->status = status; 1325 if (tag >= 0) 1326 esiop_lun->tactive[tag] = NULL; 1327 else 1328 esiop_lun->active = NULL; 1329 /* 1330 * scratcha was eventually saved in saved_offset by script. 1331 * fetch offset from it 1332 */ 1333 offset = 0; 1334 if (ESIOP_XFER(esiop_cmd, saved_offset) != htole32(SIOP_NOOFFSET)) 1335 offset = 1336 (le32toh(ESIOP_XFER(esiop_cmd, saved_offset)) >> 8) & 0xff; 1337 esiop_scsicmd_end(esiop_cmd, offset); 1338 goto next; 1339 } 1340 1341 void 1342 esiop_unqueue(sc, target, lun) 1343 struct esiop_softc *sc; 1344 int target; 1345 int lun; 1346 { 1347 int slot, tag; 1348 u_int32_t slotdsa; 1349 struct esiop_cmd *esiop_cmd; 1350 struct esiop_lun *esiop_lun = 1351 ((struct esiop_target *)sc->sc_c.targets[target])->esiop_lun[lun]; 1352 1353 /* first make sure to read valid data */ 1354 esiop_script_sync(sc, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1355 1356 for (tag = 0; tag < ESIOP_NTAG; tag++) { 1357 /* look for commands in the scheduler, not yet started */ 1358 if (esiop_lun->tactive[tag] == NULL) 1359 continue; 1360 esiop_cmd = esiop_lun->tactive[tag]; 1361 for (slot = 0; slot < A_ncmd_slots; slot++) { 1362 slotdsa = esiop_script_read(sc, 1363 sc->sc_shedoffset + slot * CMD_SLOTSIZE); 1364 /* if the slot has any flag, it won't match the DSA */ 1365 if (slotdsa == esiop_cmd->cmd_c.dsa) { /* found it */ 1366 /* Mark this slot as ignore */ 1367 esiop_script_write(sc, 1368 sc->sc_shedoffset + slot * CMD_SLOTSIZE, 1369 esiop_cmd->cmd_c.dsa | A_f_cmd_ignore); 1370 /* ask to requeue */ 1371 esiop_cmd->cmd_c.xs->error = XS_REQUEUE; 1372 esiop_cmd->cmd_c.xs->status = SCSI_SIOP_NOCHECK; 1373 esiop_lun->tactive[tag] = NULL; 1374 esiop_scsicmd_end(esiop_cmd, 0); 1375 break; 1376 } 1377 } 1378 } 1379 esiop_script_sync(sc, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1380 } 1381 1382 /* 1383 * handle a rejected queue tag message: the command will run untagged, 1384 * has to adjust the reselect script. 1385 */ 1386 1387 1388 int 1389 esiop_handle_qtag_reject(esiop_cmd) 1390 struct esiop_cmd *esiop_cmd; 1391 { 1392 struct esiop_softc *sc = (struct esiop_softc *)esiop_cmd->cmd_c.siop_sc; 1393 int target = esiop_cmd->cmd_c.xs->xs_periph->periph_target; 1394 int lun = esiop_cmd->cmd_c.xs->xs_periph->periph_lun; 1395 int tag = esiop_cmd->cmd_tables->msg_out[2]; 1396 struct esiop_target *esiop_target = 1397 (struct esiop_target*)sc->sc_c.targets[target]; 1398 struct esiop_lun *esiop_lun = esiop_target->esiop_lun[lun]; 1399 1400 #ifdef SIOP_DEBUG 1401 printf("%s:%d:%d: tag message %d (%d) rejected (status %d)\n", 1402 sc->sc_c.sc_dev.dv_xname, target, lun, tag, esiop_cmd->cmd_c.tag, 1403 esiop_cmd->cmd_c.status); 1404 #endif 1405 1406 if (esiop_lun->active != NULL) { 1407 printf("%s: untagged command already running for target %d " 1408 "lun %d (status %d)\n", sc->sc_c.sc_dev.dv_xname, 1409 target, lun, esiop_lun->active->cmd_c.status); 1410 return -1; 1411 } 1412 /* clear tag slot */ 1413 esiop_lun->tactive[tag] = NULL; 1414 /* add command to non-tagged slot */ 1415 esiop_lun->active = esiop_cmd; 1416 esiop_cmd->cmd_c.flags &= ~CMDFL_TAG; 1417 esiop_cmd->cmd_c.tag = -1; 1418 /* update DSA table */ 1419 esiop_script_write(sc, esiop_target->lun_table_offset + 1420 lun * 2 + A_target_luntbl / sizeof(u_int32_t), 1421 esiop_cmd->cmd_c.dsa); 1422 esiop_script_sync(sc, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1423 return 0; 1424 } 1425 1426 /* 1427 * handle a bus reset: reset chip, unqueue all active commands, free all 1428 * target struct and report lossage to upper layer. 1429 * As the upper layer may requeue immediatly we have to first store 1430 * all active commands in a temporary queue. 1431 */ 1432 void 1433 esiop_handle_reset(sc) 1434 struct esiop_softc *sc; 1435 { 1436 struct esiop_cmd *esiop_cmd; 1437 struct esiop_lun *esiop_lun; 1438 int target, lun, tag; 1439 /* 1440 * scsi bus reset. reset the chip and restart 1441 * the queue. Need to clean up all active commands 1442 */ 1443 printf("%s: scsi bus reset\n", sc->sc_c.sc_dev.dv_xname); 1444 /* stop, reset and restart the chip */ 1445 esiop_reset(sc); 1446 1447 if (sc->sc_flags & SCF_CHAN_NOSLOT) { 1448 /* chip has been reset, all slots are free now */ 1449 sc->sc_flags &= ~SCF_CHAN_NOSLOT; 1450 scsipi_channel_thaw(&sc->sc_c.sc_chan, 1); 1451 } 1452 /* 1453 * Process all commands: first commands completes, then commands 1454 * being executed 1455 */ 1456 esiop_checkdone(sc); 1457 for (target = 0; target < sc->sc_c.sc_chan.chan_ntargets; 1458 target++) { 1459 struct esiop_target *esiop_target = 1460 (struct esiop_target *)sc->sc_c.targets[target]; 1461 if (esiop_target == NULL) 1462 continue; 1463 for (lun = 0; lun < 8; lun++) { 1464 esiop_lun = esiop_target->esiop_lun[lun]; 1465 if (esiop_lun == NULL) 1466 continue; 1467 for (tag = -1; tag < 1468 ((sc->sc_c.targets[target]->flags & TARF_TAG) ? 1469 ESIOP_NTAG : 0); 1470 tag++) { 1471 if (tag >= 0) 1472 esiop_cmd = esiop_lun->tactive[tag]; 1473 else 1474 esiop_cmd = esiop_lun->active; 1475 if (esiop_cmd == NULL) 1476 continue; 1477 scsipi_printaddr(esiop_cmd->cmd_c.xs->xs_periph); 1478 printf("command with tag id %d reset\n", tag); 1479 esiop_cmd->cmd_c.xs->error = 1480 (esiop_cmd->cmd_c.flags & CMDFL_TIMEOUT) ? 1481 XS_TIMEOUT : XS_RESET; 1482 esiop_cmd->cmd_c.xs->status = SCSI_SIOP_NOCHECK; 1483 if (tag >= 0) 1484 esiop_lun->tactive[tag] = NULL; 1485 else 1486 esiop_lun->active = NULL; 1487 esiop_cmd->cmd_c.status = CMDST_DONE; 1488 esiop_scsicmd_end(esiop_cmd, 0); 1489 } 1490 } 1491 sc->sc_c.targets[target]->status = TARST_ASYNC; 1492 sc->sc_c.targets[target]->flags &= ~(TARF_ISWIDE | TARF_ISDT); 1493 sc->sc_c.targets[target]->period = 1494 sc->sc_c.targets[target]->offset = 0; 1495 siop_update_xfer_mode(&sc->sc_c, target); 1496 } 1497 1498 scsipi_async_event(&sc->sc_c.sc_chan, ASYNC_EVENT_RESET, NULL); 1499 } 1500 1501 void 1502 esiop_scsipi_request(chan, req, arg) 1503 struct scsipi_channel *chan; 1504 scsipi_adapter_req_t req; 1505 void *arg; 1506 { 1507 struct scsipi_xfer *xs; 1508 struct scsipi_periph *periph; 1509 struct esiop_softc *sc = (void *)chan->chan_adapter->adapt_dev; 1510 struct esiop_cmd *esiop_cmd; 1511 struct esiop_target *esiop_target; 1512 int s, error, i; 1513 int target; 1514 int lun; 1515 1516 switch (req) { 1517 case ADAPTER_REQ_RUN_XFER: 1518 xs = arg; 1519 periph = xs->xs_periph; 1520 target = periph->periph_target; 1521 lun = periph->periph_lun; 1522 1523 s = splbio(); 1524 /* 1525 * first check if there are pending complete commands. 1526 * this can free us some resources (in the rings for example). 1527 * we have to lock it to avoid recursion. 1528 */ 1529 if ((sc->sc_flags & SCF_CHAN_ADAPTREQ) == 0) { 1530 sc->sc_flags |= SCF_CHAN_ADAPTREQ; 1531 esiop_checkdone(sc); 1532 sc->sc_flags &= ~SCF_CHAN_ADAPTREQ; 1533 } 1534 #ifdef SIOP_DEBUG_SCHED 1535 printf("starting cmd for %d:%d tag %d(%d)\n", target, lun, 1536 xs->xs_tag_type, xs->xs_tag_id); 1537 #endif 1538 esiop_cmd = TAILQ_FIRST(&sc->free_list); 1539 if (esiop_cmd == NULL) { 1540 xs->error = XS_RESOURCE_SHORTAGE; 1541 scsipi_done(xs); 1542 splx(s); 1543 return; 1544 } 1545 TAILQ_REMOVE(&sc->free_list, esiop_cmd, next); 1546 #ifdef DIAGNOSTIC 1547 if (esiop_cmd->cmd_c.status != CMDST_FREE) 1548 panic("siop_scsicmd: new cmd not free"); 1549 #endif 1550 esiop_target = (struct esiop_target*)sc->sc_c.targets[target]; 1551 if (esiop_target == NULL) { 1552 #ifdef SIOP_DEBUG 1553 printf("%s: alloc siop_target for target %d\n", 1554 sc->sc_c.sc_dev.dv_xname, target); 1555 #endif 1556 sc->sc_c.targets[target] = 1557 malloc(sizeof(struct esiop_target), 1558 M_DEVBUF, M_NOWAIT | M_ZERO); 1559 if (sc->sc_c.targets[target] == NULL) { 1560 printf("%s: can't malloc memory for " 1561 "target %d\n", sc->sc_c.sc_dev.dv_xname, 1562 target); 1563 xs->error = XS_RESOURCE_SHORTAGE; 1564 scsipi_done(xs); 1565 splx(s); 1566 return; 1567 } 1568 esiop_target = 1569 (struct esiop_target*)sc->sc_c.targets[target]; 1570 esiop_target->target_c.status = TARST_PROBING; 1571 esiop_target->target_c.flags = 0; 1572 esiop_target->target_c.id = 1573 sc->sc_c.clock_div << 24; /* scntl3 */ 1574 esiop_target->target_c.id |= target << 16; /* id */ 1575 /* esiop_target->target_c.id |= 0x0 << 8; scxfer is 0 */ 1576 1577 for (i=0; i < 8; i++) 1578 esiop_target->esiop_lun[i] = NULL; 1579 esiop_target_register(sc, target); 1580 } 1581 if (esiop_target->esiop_lun[lun] == NULL) { 1582 esiop_target->esiop_lun[lun] = 1583 malloc(sizeof(struct esiop_lun), M_DEVBUF, 1584 M_NOWAIT|M_ZERO); 1585 if (esiop_target->esiop_lun[lun] == NULL) { 1586 printf("%s: can't alloc esiop_lun for " 1587 "target %d lun %d\n", 1588 sc->sc_c.sc_dev.dv_xname, target, lun); 1589 xs->error = XS_RESOURCE_SHORTAGE; 1590 scsipi_done(xs); 1591 splx(s); 1592 return; 1593 } 1594 } 1595 esiop_cmd->cmd_c.siop_target = sc->sc_c.targets[target]; 1596 esiop_cmd->cmd_c.xs = xs; 1597 esiop_cmd->cmd_c.flags = 0; 1598 esiop_cmd->cmd_c.status = CMDST_READY; 1599 1600 /* load the DMA maps */ 1601 error = bus_dmamap_load(sc->sc_c.sc_dmat, 1602 esiop_cmd->cmd_c.dmamap_cmd, 1603 xs->cmd, xs->cmdlen, NULL, BUS_DMA_NOWAIT); 1604 if (error) { 1605 printf("%s: unable to load cmd DMA map: %d\n", 1606 sc->sc_c.sc_dev.dv_xname, error); 1607 xs->error = XS_DRIVER_STUFFUP; 1608 scsipi_done(xs); 1609 splx(s); 1610 return; 1611 } 1612 if (xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT)) { 1613 error = bus_dmamap_load(sc->sc_c.sc_dmat, 1614 esiop_cmd->cmd_c.dmamap_data, xs->data, xs->datalen, 1615 NULL, BUS_DMA_NOWAIT | BUS_DMA_STREAMING | 1616 ((xs->xs_control & XS_CTL_DATA_IN) ? 1617 BUS_DMA_READ : BUS_DMA_WRITE)); 1618 if (error) { 1619 printf("%s: unable to load cmd DMA map: %d", 1620 sc->sc_c.sc_dev.dv_xname, error); 1621 xs->error = XS_DRIVER_STUFFUP; 1622 scsipi_done(xs); 1623 bus_dmamap_unload(sc->sc_c.sc_dmat, 1624 esiop_cmd->cmd_c.dmamap_cmd); 1625 splx(s); 1626 return; 1627 } 1628 bus_dmamap_sync(sc->sc_c.sc_dmat, 1629 esiop_cmd->cmd_c.dmamap_data, 0, 1630 esiop_cmd->cmd_c.dmamap_data->dm_mapsize, 1631 (xs->xs_control & XS_CTL_DATA_IN) ? 1632 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); 1633 } 1634 bus_dmamap_sync(sc->sc_c.sc_dmat, esiop_cmd->cmd_c.dmamap_cmd, 1635 0, esiop_cmd->cmd_c.dmamap_cmd->dm_mapsize, 1636 BUS_DMASYNC_PREWRITE); 1637 1638 if (xs->xs_tag_type) 1639 esiop_cmd->cmd_c.tag = xs->xs_tag_id; 1640 else 1641 esiop_cmd->cmd_c.tag = -1; 1642 siop_setuptables(&esiop_cmd->cmd_c); 1643 ESIOP_XFER(esiop_cmd, saved_offset) = htole32(SIOP_NOOFFSET); 1644 ESIOP_XFER(esiop_cmd, tlq) = htole32(A_f_c_target | A_f_c_lun); 1645 ESIOP_XFER(esiop_cmd, tlq) |= 1646 htole32((target << 8) | (lun << 16)); 1647 if (esiop_cmd->cmd_c.flags & CMDFL_TAG) { 1648 ESIOP_XFER(esiop_cmd, tlq) |= htole32(A_f_c_tag); 1649 ESIOP_XFER(esiop_cmd, tlq) |= 1650 htole32(esiop_cmd->cmd_c.tag << 24); 1651 } 1652 1653 esiop_table_sync(esiop_cmd, 1654 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1655 esiop_start(sc, esiop_cmd); 1656 if (xs->xs_control & XS_CTL_POLL) { 1657 /* poll for command completion */ 1658 while ((xs->xs_status & XS_STS_DONE) == 0) { 1659 delay(1000); 1660 esiop_intr(sc); 1661 } 1662 } 1663 splx(s); 1664 return; 1665 1666 case ADAPTER_REQ_GROW_RESOURCES: 1667 #ifdef SIOP_DEBUG 1668 printf("%s grow resources (%d)\n", sc->sc_c.sc_dev.dv_xname, 1669 sc->sc_c.sc_adapt.adapt_openings); 1670 #endif 1671 esiop_morecbd(sc); 1672 return; 1673 1674 case ADAPTER_REQ_SET_XFER_MODE: 1675 { 1676 struct scsipi_xfer_mode *xm = arg; 1677 if (sc->sc_c.targets[xm->xm_target] == NULL) 1678 return; 1679 s = splbio(); 1680 if (xm->xm_mode & PERIPH_CAP_TQING) { 1681 sc->sc_c.targets[xm->xm_target]->flags |= TARF_TAG; 1682 /* allocate tag tables for this device */ 1683 for (lun = 0; 1684 lun < sc->sc_c.sc_chan.chan_nluns; lun++) { 1685 if (scsipi_lookup_periph(chan, 1686 xm->xm_target, lun) != NULL) 1687 esiop_add_dev(sc, xm->xm_target, lun); 1688 } 1689 } 1690 if ((xm->xm_mode & PERIPH_CAP_WIDE16) && 1691 (sc->sc_c.features & SF_BUS_WIDE)) 1692 sc->sc_c.targets[xm->xm_target]->flags |= TARF_WIDE; 1693 if (xm->xm_mode & PERIPH_CAP_SYNC) 1694 sc->sc_c.targets[xm->xm_target]->flags |= TARF_SYNC; 1695 if ((xm->xm_mode & PERIPH_CAP_DT) && 1696 (sc->sc_c.features & SF_CHIP_DT)) 1697 sc->sc_c.targets[xm->xm_target]->flags |= TARF_DT; 1698 if ((xm->xm_mode & 1699 (PERIPH_CAP_SYNC | PERIPH_CAP_WIDE16 | PERIPH_CAP_DT)) || 1700 sc->sc_c.targets[xm->xm_target]->status == TARST_PROBING) 1701 sc->sc_c.targets[xm->xm_target]->status = TARST_ASYNC; 1702 1703 splx(s); 1704 } 1705 } 1706 } 1707 1708 static void 1709 esiop_start(sc, esiop_cmd) 1710 struct esiop_softc *sc; 1711 struct esiop_cmd *esiop_cmd; 1712 { 1713 struct esiop_lun *esiop_lun; 1714 struct esiop_target *esiop_target; 1715 int timeout; 1716 int target, lun, slot; 1717 1718 /* 1719 * first make sure to read valid data 1720 */ 1721 esiop_script_sync(sc, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1722 1723 /* 1724 * We use a circular queue here. sc->sc_currschedslot points to a 1725 * free slot, unless we have filled the queue. Check this. 1726 */ 1727 slot = sc->sc_currschedslot; 1728 if ((esiop_script_read(sc, sc->sc_shedoffset + slot * CMD_SLOTSIZE) & 1729 A_f_cmd_free) == 0) { 1730 /* 1731 * no more free slot, no need to continue. freeze the queue 1732 * and requeue this command. 1733 */ 1734 scsipi_channel_freeze(&sc->sc_c.sc_chan, 1); 1735 sc->sc_flags |= SCF_CHAN_NOSLOT; 1736 esiop_script_write(sc, sc->sc_semoffset, 1737 esiop_script_read(sc, sc->sc_semoffset) & ~A_sem_start); 1738 esiop_script_sync(sc, 1739 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1740 esiop_cmd->cmd_c.xs->error = XS_REQUEUE; 1741 esiop_cmd->cmd_c.xs->status = SCSI_SIOP_NOCHECK; 1742 esiop_scsicmd_end(esiop_cmd, 0); 1743 return; 1744 } 1745 /* OK, we can use this slot */ 1746 1747 target = esiop_cmd->cmd_c.xs->xs_periph->periph_target; 1748 lun = esiop_cmd->cmd_c.xs->xs_periph->periph_lun; 1749 esiop_target = (struct esiop_target*)sc->sc_c.targets[target]; 1750 esiop_lun = esiop_target->esiop_lun[lun]; 1751 /* if non-tagged command active, panic: this shouldn't happen */ 1752 if (esiop_lun->active != NULL) { 1753 panic("esiop_start: tagged cmd while untagged running"); 1754 } 1755 #ifdef DIAGNOSTIC 1756 /* sanity check the tag if needed */ 1757 if (esiop_cmd->cmd_c.flags & CMDFL_TAG) { 1758 if (esiop_cmd->cmd_c.tag >= ESIOP_NTAG || 1759 esiop_cmd->cmd_c.tag < 0) { 1760 scsipi_printaddr(esiop_cmd->cmd_c.xs->xs_periph); 1761 printf(": tag id %d\n", esiop_cmd->cmd_c.tag); 1762 panic("esiop_start: invalid tag id"); 1763 } 1764 if (esiop_lun->tactive[esiop_cmd->cmd_c.tag] != NULL) 1765 panic("esiop_start: tag not free"); 1766 } 1767 #endif 1768 #ifdef SIOP_DEBUG_SCHED 1769 printf("using slot %d for DSA 0x%lx\n", slot, 1770 (u_long)esiop_cmd->cmd_c.dsa); 1771 #endif 1772 /* mark command as active */ 1773 if (esiop_cmd->cmd_c.status == CMDST_READY) 1774 esiop_cmd->cmd_c.status = CMDST_ACTIVE; 1775 else 1776 panic("esiop_start: bad status"); 1777 /* DSA table for reselect */ 1778 if (esiop_cmd->cmd_c.flags & CMDFL_TAG) { 1779 esiop_lun->tactive[esiop_cmd->cmd_c.tag] = esiop_cmd; 1780 /* DSA table for reselect */ 1781 esiop_lun->lun_tagtbl->tbl[esiop_cmd->cmd_c.tag] = 1782 htole32(esiop_cmd->cmd_c.dsa); 1783 bus_dmamap_sync(sc->sc_c.sc_dmat, 1784 esiop_lun->lun_tagtbl->tblblk->blkmap, 1785 esiop_lun->lun_tagtbl->tbl_offset, 1786 sizeof(u_int32_t) * ESIOP_NTAG, BUS_DMASYNC_PREWRITE); 1787 } else { 1788 esiop_lun->active = esiop_cmd; 1789 esiop_script_write(sc, 1790 esiop_target->lun_table_offset + 1791 lun * 2 + A_target_luntbl / sizeof(u_int32_t), 1792 esiop_cmd->cmd_c.dsa); 1793 } 1794 /* scheduler slot: DSA */ 1795 esiop_script_write(sc, sc->sc_shedoffset + slot * CMD_SLOTSIZE, 1796 esiop_cmd->cmd_c.dsa); 1797 /* make sure SCRIPT processor will read valid data */ 1798 esiop_script_sync(sc, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1799 /* handle timeout */ 1800 if ((esiop_cmd->cmd_c.xs->xs_control & XS_CTL_POLL) == 0) { 1801 /* start exire timer */ 1802 timeout = mstohz(esiop_cmd->cmd_c.xs->timeout); 1803 if (timeout == 0) 1804 timeout = 1; 1805 callout_reset( &esiop_cmd->cmd_c.xs->xs_callout, 1806 timeout, esiop_timeout, esiop_cmd); 1807 } 1808 /* Signal script it has some work to do */ 1809 bus_space_write_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, 1810 SIOP_ISTAT, ISTAT_SIGP); 1811 /* update the current slot, and wait for IRQ */ 1812 sc->sc_currschedslot++; 1813 if (sc->sc_currschedslot >= A_ncmd_slots) 1814 sc->sc_currschedslot = 0; 1815 return; 1816 } 1817 1818 void 1819 esiop_timeout(v) 1820 void *v; 1821 { 1822 struct esiop_cmd *esiop_cmd = v; 1823 struct esiop_softc *sc = 1824 (struct esiop_softc *)esiop_cmd->cmd_c.siop_sc; 1825 int s; 1826 #ifdef SIOP_DEBUG 1827 int slot, slotdsa; 1828 #endif 1829 1830 s = splbio(); 1831 esiop_table_sync(esiop_cmd, 1832 BUS_DMASYNC_POSTREAD | 1833 BUS_DMASYNC_POSTWRITE); 1834 scsipi_printaddr(esiop_cmd->cmd_c.xs->xs_periph); 1835 #ifdef SIOP_DEBUG 1836 printf("command timeout (status %d)\n", le32toh(esiop_cmd->cmd_tables->status)); 1837 1838 esiop_script_sync(sc, BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1839 for (slot = 0; slot < A_ncmd_slots; slot++) { 1840 slotdsa = esiop_script_read(sc, 1841 sc->sc_shedoffset + slot * CMD_SLOTSIZE); 1842 if ((slotdsa & 0x01) == 0) 1843 printf("slot %d not free (0x%x)\n", slot, slotdsa); 1844 } 1845 printf("istat 0x%x ", bus_space_read_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_ISTAT)); 1846 printf("DSP 0x%lx DSA 0x%x\n", 1847 (u_long)(bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_DSP) - sc->sc_c.sc_scriptaddr), 1848 bus_space_read_4(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_DSA)); 1849 bus_space_read_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_CTEST2); 1850 printf("istat 0x%x\n", bus_space_read_1(sc->sc_c.sc_rt, sc->sc_c.sc_rh, SIOP_ISTAT)); 1851 #else 1852 printf("command timeout, CDB: "); 1853 scsipi_print_cdb(esiop_cmd->cmd_c.xs->cmd); 1854 printf("\n"); 1855 #endif 1856 /* reset the scsi bus */ 1857 siop_resetbus(&sc->sc_c); 1858 1859 /* deactivate callout */ 1860 callout_stop(&esiop_cmd->cmd_c.xs->xs_callout); 1861 /* 1862 * mark command has being timed out and just return; 1863 * the bus reset will generate an interrupt, 1864 * it will be handled in siop_intr() 1865 */ 1866 esiop_cmd->cmd_c.flags |= CMDFL_TIMEOUT; 1867 splx(s); 1868 return; 1869 1870 } 1871 1872 void 1873 esiop_dump_script(sc) 1874 struct esiop_softc *sc; 1875 { 1876 int i; 1877 for (i = 0; i < PAGE_SIZE / 4; i += 2) { 1878 printf("0x%04x: 0x%08x 0x%08x", i * 4, 1879 le32toh(sc->sc_c.sc_script[i]), 1880 le32toh(sc->sc_c.sc_script[i+1])); 1881 if ((le32toh(sc->sc_c.sc_script[i]) & 0xe0000000) == 1882 0xc0000000) { 1883 i++; 1884 printf(" 0x%08x", le32toh(sc->sc_c.sc_script[i+1])); 1885 } 1886 printf("\n"); 1887 } 1888 } 1889 1890 void 1891 esiop_morecbd(sc) 1892 struct esiop_softc *sc; 1893 { 1894 int error, i, s; 1895 bus_dma_segment_t seg; 1896 int rseg; 1897 struct esiop_cbd *newcbd; 1898 struct esiop_xfer *xfer; 1899 bus_addr_t dsa; 1900 1901 /* allocate a new list head */ 1902 newcbd = malloc(sizeof(struct esiop_cbd), M_DEVBUF, M_NOWAIT|M_ZERO); 1903 if (newcbd == NULL) { 1904 printf("%s: can't allocate memory for command descriptors " 1905 "head\n", sc->sc_c.sc_dev.dv_xname); 1906 return; 1907 } 1908 1909 /* allocate cmd list */ 1910 newcbd->cmds = malloc(sizeof(struct esiop_cmd) * SIOP_NCMDPB, 1911 M_DEVBUF, M_NOWAIT|M_ZERO); 1912 if (newcbd->cmds == NULL) { 1913 printf("%s: can't allocate memory for command descriptors\n", 1914 sc->sc_c.sc_dev.dv_xname); 1915 goto bad3; 1916 } 1917 error = bus_dmamem_alloc(sc->sc_c.sc_dmat, PAGE_SIZE, PAGE_SIZE, 0, 1918 &seg, 1, &rseg, BUS_DMA_NOWAIT); 1919 if (error) { 1920 printf("%s: unable to allocate cbd DMA memory, error = %d\n", 1921 sc->sc_c.sc_dev.dv_xname, error); 1922 goto bad2; 1923 } 1924 error = bus_dmamem_map(sc->sc_c.sc_dmat, &seg, rseg, PAGE_SIZE, 1925 (void **)&newcbd->xfers, BUS_DMA_NOWAIT|BUS_DMA_COHERENT); 1926 if (error) { 1927 printf("%s: unable to map cbd DMA memory, error = %d\n", 1928 sc->sc_c.sc_dev.dv_xname, error); 1929 goto bad2; 1930 } 1931 error = bus_dmamap_create(sc->sc_c.sc_dmat, PAGE_SIZE, 1, PAGE_SIZE, 0, 1932 BUS_DMA_NOWAIT, &newcbd->xferdma); 1933 if (error) { 1934 printf("%s: unable to create cbd DMA map, error = %d\n", 1935 sc->sc_c.sc_dev.dv_xname, error); 1936 goto bad1; 1937 } 1938 error = bus_dmamap_load(sc->sc_c.sc_dmat, newcbd->xferdma, 1939 newcbd->xfers, PAGE_SIZE, NULL, BUS_DMA_NOWAIT); 1940 if (error) { 1941 printf("%s: unable to load cbd DMA map, error = %d\n", 1942 sc->sc_c.sc_dev.dv_xname, error); 1943 goto bad0; 1944 } 1945 #ifdef DEBUG 1946 printf("%s: alloc newcdb at PHY addr 0x%lx\n", sc->sc_c.sc_dev.dv_xname, 1947 (unsigned long)newcbd->xferdma->dm_segs[0].ds_addr); 1948 #endif 1949 for (i = 0; i < SIOP_NCMDPB; i++) { 1950 error = bus_dmamap_create(sc->sc_c.sc_dmat, MAXPHYS, SIOP_NSG, 1951 MAXPHYS, 0, BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, 1952 &newcbd->cmds[i].cmd_c.dmamap_data); 1953 if (error) { 1954 printf("%s: unable to create data DMA map for cbd: " 1955 "error %d\n", 1956 sc->sc_c.sc_dev.dv_xname, error); 1957 goto bad0; 1958 } 1959 error = bus_dmamap_create(sc->sc_c.sc_dmat, 1960 sizeof(struct scsipi_generic), 1, 1961 sizeof(struct scsipi_generic), 0, 1962 BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, 1963 &newcbd->cmds[i].cmd_c.dmamap_cmd); 1964 if (error) { 1965 printf("%s: unable to create cmd DMA map for cbd %d\n", 1966 sc->sc_c.sc_dev.dv_xname, error); 1967 goto bad0; 1968 } 1969 newcbd->cmds[i].cmd_c.siop_sc = &sc->sc_c; 1970 newcbd->cmds[i].esiop_cbdp = newcbd; 1971 xfer = &newcbd->xfers[i]; 1972 newcbd->cmds[i].cmd_tables = (struct siop_common_xfer *)xfer; 1973 memset(newcbd->cmds[i].cmd_tables, 0, 1974 sizeof(struct esiop_xfer)); 1975 dsa = newcbd->xferdma->dm_segs[0].ds_addr + 1976 i * sizeof(struct esiop_xfer); 1977 newcbd->cmds[i].cmd_c.dsa = dsa; 1978 newcbd->cmds[i].cmd_c.status = CMDST_FREE; 1979 xfer->siop_tables.t_msgout.count= htole32(1); 1980 xfer->siop_tables.t_msgout.addr = htole32(dsa); 1981 xfer->siop_tables.t_msgin.count= htole32(1); 1982 xfer->siop_tables.t_msgin.addr = htole32(dsa + 1983 offsetof(struct siop_common_xfer, msg_in)); 1984 xfer->siop_tables.t_extmsgin.count= htole32(2); 1985 xfer->siop_tables.t_extmsgin.addr = htole32(dsa + 1986 offsetof(struct siop_common_xfer, msg_in) + 1); 1987 xfer->siop_tables.t_extmsgdata.addr = htole32(dsa + 1988 offsetof(struct siop_common_xfer, msg_in) + 3); 1989 xfer->siop_tables.t_status.count= htole32(1); 1990 xfer->siop_tables.t_status.addr = htole32(dsa + 1991 offsetof(struct siop_common_xfer, status)); 1992 1993 s = splbio(); 1994 TAILQ_INSERT_TAIL(&sc->free_list, &newcbd->cmds[i], next); 1995 splx(s); 1996 #ifdef SIOP_DEBUG 1997 printf("tables[%d]: in=0x%x out=0x%x status=0x%x\n", i, 1998 le32toh(newcbd->cmds[i].cmd_tables->t_msgin.addr), 1999 le32toh(newcbd->cmds[i].cmd_tables->t_msgout.addr), 2000 le32toh(newcbd->cmds[i].cmd_tables->t_status.addr)); 2001 #endif 2002 } 2003 s = splbio(); 2004 TAILQ_INSERT_TAIL(&sc->cmds, newcbd, next); 2005 sc->sc_c.sc_adapt.adapt_openings += SIOP_NCMDPB; 2006 splx(s); 2007 return; 2008 bad0: 2009 bus_dmamap_unload(sc->sc_c.sc_dmat, newcbd->xferdma); 2010 bus_dmamap_destroy(sc->sc_c.sc_dmat, newcbd->xferdma); 2011 bad1: 2012 bus_dmamem_free(sc->sc_c.sc_dmat, &seg, rseg); 2013 bad2: 2014 free(newcbd->cmds, M_DEVBUF); 2015 bad3: 2016 free(newcbd, M_DEVBUF); 2017 return; 2018 } 2019 2020 void 2021 esiop_moretagtbl(sc) 2022 struct esiop_softc *sc; 2023 { 2024 int error, i, j, s; 2025 bus_dma_segment_t seg; 2026 int rseg; 2027 struct esiop_dsatblblk *newtblblk; 2028 struct esiop_dsatbl *newtbls; 2029 u_int32_t *tbls; 2030 2031 /* allocate a new list head */ 2032 newtblblk = malloc(sizeof(struct esiop_dsatblblk), 2033 M_DEVBUF, M_NOWAIT|M_ZERO); 2034 if (newtblblk == NULL) { 2035 printf("%s: can't allocate memory for tag DSA table block\n", 2036 sc->sc_c.sc_dev.dv_xname); 2037 return; 2038 } 2039 2040 /* allocate tbl list */ 2041 newtbls = malloc(sizeof(struct esiop_dsatbl) * ESIOP_NTPB, 2042 M_DEVBUF, M_NOWAIT|M_ZERO); 2043 if (newtbls == NULL) { 2044 printf("%s: can't allocate memory for command descriptors\n", 2045 sc->sc_c.sc_dev.dv_xname); 2046 goto bad3; 2047 } 2048 error = bus_dmamem_alloc(sc->sc_c.sc_dmat, PAGE_SIZE, PAGE_SIZE, 0, 2049 &seg, 1, &rseg, BUS_DMA_NOWAIT); 2050 if (error) { 2051 printf("%s: unable to allocate tbl DMA memory, error = %d\n", 2052 sc->sc_c.sc_dev.dv_xname, error); 2053 goto bad2; 2054 } 2055 error = bus_dmamem_map(sc->sc_c.sc_dmat, &seg, rseg, PAGE_SIZE, 2056 (void *)&tbls, BUS_DMA_NOWAIT|BUS_DMA_COHERENT); 2057 if (error) { 2058 printf("%s: unable to map tbls DMA memory, error = %d\n", 2059 sc->sc_c.sc_dev.dv_xname, error); 2060 goto bad2; 2061 } 2062 error = bus_dmamap_create(sc->sc_c.sc_dmat, PAGE_SIZE, 1, PAGE_SIZE, 0, 2063 BUS_DMA_NOWAIT, &newtblblk->blkmap); 2064 if (error) { 2065 printf("%s: unable to create tbl DMA map, error = %d\n", 2066 sc->sc_c.sc_dev.dv_xname, error); 2067 goto bad1; 2068 } 2069 error = bus_dmamap_load(sc->sc_c.sc_dmat, newtblblk->blkmap, 2070 tbls, PAGE_SIZE, NULL, BUS_DMA_NOWAIT); 2071 if (error) { 2072 printf("%s: unable to load tbl DMA map, error = %d\n", 2073 sc->sc_c.sc_dev.dv_xname, error); 2074 goto bad0; 2075 } 2076 #ifdef DEBUG 2077 printf("%s: alloc new tag DSA table at PHY addr 0x%lx\n", 2078 sc->sc_c.sc_dev.dv_xname, 2079 (unsigned long)newtblblk->blkmap->dm_segs[0].ds_addr); 2080 #endif 2081 for (i = 0; i < ESIOP_NTPB; i++) { 2082 newtbls[i].tblblk = newtblblk; 2083 newtbls[i].tbl = &tbls[i * ESIOP_NTAG]; 2084 newtbls[i].tbl_offset = i * ESIOP_NTAG * sizeof(u_int32_t); 2085 newtbls[i].tbl_dsa = newtblblk->blkmap->dm_segs[0].ds_addr + 2086 newtbls[i].tbl_offset; 2087 for (j = 0; j < ESIOP_NTAG; j++) 2088 newtbls[i].tbl[j] = j; 2089 s = splbio(); 2090 TAILQ_INSERT_TAIL(&sc->free_tagtbl, &newtbls[i], next); 2091 splx(s); 2092 } 2093 s = splbio(); 2094 TAILQ_INSERT_TAIL(&sc->tag_tblblk, newtblblk, next); 2095 splx(s); 2096 return; 2097 bad0: 2098 bus_dmamap_unload(sc->sc_c.sc_dmat, newtblblk->blkmap); 2099 bus_dmamap_destroy(sc->sc_c.sc_dmat, newtblblk->blkmap); 2100 bad1: 2101 bus_dmamem_free(sc->sc_c.sc_dmat, &seg, rseg); 2102 bad2: 2103 free(newtbls, M_DEVBUF); 2104 bad3: 2105 free(newtblblk, M_DEVBUF); 2106 return; 2107 } 2108 2109 void 2110 esiop_update_scntl3(sc, _siop_target) 2111 struct esiop_softc *sc; 2112 struct siop_common_target *_siop_target; 2113 { 2114 struct esiop_target *esiop_target = (struct esiop_target *)_siop_target; 2115 esiop_script_write(sc, esiop_target->lun_table_offset, 2116 esiop_target->target_c.id); 2117 esiop_script_sync(sc, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2118 } 2119 2120 void 2121 esiop_add_dev(sc, target, lun) 2122 struct esiop_softc *sc; 2123 int target; 2124 int lun; 2125 { 2126 struct esiop_target *esiop_target = 2127 (struct esiop_target *)sc->sc_c.targets[target]; 2128 struct esiop_lun *esiop_lun = esiop_target->esiop_lun[lun]; 2129 2130 if (esiop_lun->lun_tagtbl != NULL) 2131 return; /* already allocated */ 2132 2133 /* we need a tag DSA table */ 2134 esiop_lun->lun_tagtbl= TAILQ_FIRST(&sc->free_tagtbl); 2135 if (esiop_lun->lun_tagtbl == NULL) { 2136 esiop_moretagtbl(sc); 2137 esiop_lun->lun_tagtbl= TAILQ_FIRST(&sc->free_tagtbl); 2138 if (esiop_lun->lun_tagtbl == NULL) { 2139 /* no resources, run untagged */ 2140 esiop_target->target_c.flags &= ~TARF_TAG; 2141 return; 2142 } 2143 } 2144 TAILQ_REMOVE(&sc->free_tagtbl, esiop_lun->lun_tagtbl, next); 2145 /* Update LUN DSA table */ 2146 esiop_script_write(sc, esiop_target->lun_table_offset + 2147 lun * 2 + A_target_luntbl_tag / sizeof(u_int32_t), 2148 esiop_lun->lun_tagtbl->tbl_dsa); 2149 esiop_script_sync(sc, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2150 } 2151 2152 void 2153 esiop_del_dev(sc, target, lun) 2154 struct esiop_softc *sc; 2155 int target; 2156 int lun; 2157 { 2158 struct esiop_target *esiop_target; 2159 #ifdef SIOP_DEBUG 2160 printf("%s:%d:%d: free lun sw entry\n", 2161 sc->sc_c.sc_dev.dv_xname, target, lun); 2162 #endif 2163 if (sc->sc_c.targets[target] == NULL) 2164 return; 2165 esiop_target = (struct esiop_target *)sc->sc_c.targets[target]; 2166 free(esiop_target->esiop_lun[lun], M_DEVBUF); 2167 esiop_target->esiop_lun[lun] = NULL; 2168 } 2169 2170 void 2171 esiop_target_register(sc, target) 2172 struct esiop_softc *sc; 2173 u_int32_t target; 2174 { 2175 struct esiop_target *esiop_target = 2176 (struct esiop_target *)sc->sc_c.targets[target]; 2177 struct esiop_lun *esiop_lun; 2178 int lun; 2179 2180 /* get a DSA table for this target */ 2181 esiop_target->lun_table_offset = sc->sc_free_offset; 2182 sc->sc_free_offset += sc->sc_c.sc_chan.chan_nluns * 2 + 2; 2183 #ifdef SIOP_DEBUG 2184 printf("%s: lun table for target %d offset %d free offset %d\n", 2185 sc->sc_c.sc_dev.dv_xname, target, esiop_target->lun_table_offset, 2186 sc->sc_free_offset); 2187 #endif 2188 /* first 32 bytes are ID (for select) */ 2189 esiop_script_write(sc, esiop_target->lun_table_offset, 2190 esiop_target->target_c.id); 2191 /* Record this table in the target DSA table */ 2192 esiop_script_write(sc, 2193 sc->sc_target_table_offset + target, 2194 (esiop_target->lun_table_offset * sizeof(u_int32_t)) + 2195 sc->sc_c.sc_scriptaddr); 2196 /* if we have a tag table, register it */ 2197 for (lun = 0; lun < sc->sc_c.sc_chan.chan_nluns; lun++) { 2198 esiop_lun = esiop_target->esiop_lun[lun]; 2199 if (esiop_lun == NULL) 2200 continue; 2201 if (esiop_lun->lun_tagtbl) 2202 esiop_script_write(sc, esiop_target->lun_table_offset + 2203 lun * 2 + A_target_luntbl_tag / sizeof(u_int32_t), 2204 esiop_lun->lun_tagtbl->tbl_dsa); 2205 } 2206 esiop_script_sync(sc, 2207 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2208 } 2209 2210 #ifdef SIOP_STATS 2211 void 2212 esiop_printstats() 2213 { 2214 printf("esiop_stat_intr %d\n", esiop_stat_intr); 2215 printf("esiop_stat_intr_shortxfer %d\n", esiop_stat_intr_shortxfer); 2216 printf("esiop_stat_intr_xferdisc %d\n", esiop_stat_intr_xferdisc); 2217 printf("esiop_stat_intr_sdp %d\n", esiop_stat_intr_sdp); 2218 printf("esiop_stat_intr_done %d\n", esiop_stat_intr_done); 2219 printf("esiop_stat_intr_lunresel %d\n", esiop_stat_intr_lunresel); 2220 printf("esiop_stat_intr_qfull %d\n", esiop_stat_intr_qfull); 2221 } 2222 #endif 2223
Indexes created Tue Sep 30 17:09:57 GMT 2025