| 1 | /* $NetBSD: aic79xx_osm.c,v 1.33 2016/07/14 04:00:45 msaitoh Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Bus independent NetBSD shim for the aic7xxx based adaptec SCSI controllers |
| 5 | * |
| 6 | * Copyright (c) 1994-2002 Justin T. Gibbs. |
| 7 | * Copyright (c) 2001-2002 Adaptec Inc. |
| 8 | * All rights reserved. |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or without |
| 11 | * modification, are permitted provided that the following conditions |
| 12 | * are met: |
| 13 | * 1. Redistributions of source code must retain the above copyright |
| 14 | * notice, this list of conditions, and the following disclaimer, |
| 15 | * without modification. |
| 16 | * 2. The name of the author may not be used to endorse or promote products |
| 17 | * derived from this software without specific prior written permission. |
| 18 | * |
| 19 | * Alternatively, this software may be distributed under the terms of the |
| 20 | * GNU Public License ("GPL"). |
| 21 | * |
| 22 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| 23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR |
| 26 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 32 | * SUCH DAMAGE. |
| 33 | * |
| 34 | * //depot/aic7xxx/freebsd/dev/aic7xxx/aic79xx_osm.c#26 $ |
| 35 | * |
| 36 | * $FreeBSD: src/sys/dev/aic7xxx/aic79xx_osm.c,v 1.11 2003/05/04 00:20:07 gibbs Exp $ |
| 37 | */ |
| 38 | /* |
| 39 | * Ported from FreeBSD by Pascal Renauld, Network Storage Solutions, Inc. |
| 40 | * - April 2003 |
| 41 | */ |
| 42 | |
| 43 | #include <sys/cdefs.h> |
| 44 | __KERNEL_RCSID(0, "$NetBSD: aic79xx_osm.c,v 1.33 2016/07/14 04:00:45 msaitoh Exp $" ); |
| 45 | |
| 46 | #include <dev/ic/aic79xx_osm.h> |
| 47 | #include <dev/ic/aic79xx_inline.h> |
| 48 | |
| 49 | #ifndef AHD_TMODE_ENABLE |
| 50 | #define AHD_TMODE_ENABLE 0 |
| 51 | #endif |
| 52 | |
| 53 | static int ahd_ioctl(struct scsipi_channel *channel, u_long cmd, |
| 54 | void *addr, int flag, struct proc *p); |
| 55 | static void ahd_action(struct scsipi_channel *chan, |
| 56 | scsipi_adapter_req_t req, void *arg); |
| 57 | static void ahd_execute_scb(void *arg, bus_dma_segment_t *dm_segs, |
| 58 | int nsegments); |
| 59 | static int ahd_poll(struct ahd_softc *ahd, int wait); |
| 60 | static void ahd_setup_data(struct ahd_softc *ahd, struct scsipi_xfer *xs, |
| 61 | struct scb *scb); |
| 62 | |
| 63 | #if NOT_YET |
| 64 | static void ahd_set_recoveryscb(struct ahd_softc *ahd, struct scb *scb); |
| 65 | #endif |
| 66 | |
| 67 | static bool ahd_pmf_suspend(device_t, const pmf_qual_t *); |
| 68 | static bool ahd_pmf_resume(device_t, const pmf_qual_t *); |
| 69 | static bool ahd_pmf_shutdown(device_t, int); |
| 70 | |
| 71 | /* |
| 72 | * Attach all the sub-devices we can find |
| 73 | */ |
| 74 | int |
| 75 | ahd_attach(struct ahd_softc *ahd) |
| 76 | { |
| 77 | int s; |
| 78 | char ahd_info[256]; |
| 79 | |
| 80 | ahd_controller_info(ahd, ahd_info, sizeof(ahd_info)); |
| 81 | aprint_normal("%s: %s\n" , ahd_name(ahd), ahd_info); |
| 82 | |
| 83 | ahd_lock(ahd, &s); |
| 84 | |
| 85 | ahd->sc_adapter.adapt_dev = ahd->sc_dev; |
| 86 | ahd->sc_adapter.adapt_nchannels = 1; |
| 87 | |
| 88 | ahd->sc_adapter.adapt_openings = ahd->scb_data.numscbs - 1; |
| 89 | ahd->sc_adapter.adapt_max_periph = 32; |
| 90 | |
| 91 | ahd->sc_adapter.adapt_ioctl = ahd_ioctl; |
| 92 | ahd->sc_adapter.adapt_minphys = ahd_minphys; |
| 93 | ahd->sc_adapter.adapt_request = ahd_action; |
| 94 | |
| 95 | ahd->sc_channel.chan_adapter = &ahd->sc_adapter; |
| 96 | ahd->sc_channel.chan_bustype = &scsi_bustype; |
| 97 | ahd->sc_channel.chan_channel = 0; |
| 98 | ahd->sc_channel.chan_ntargets = AHD_NUM_TARGETS; |
| 99 | ahd->sc_channel.chan_nluns = 8 /*AHD_NUM_LUNS*/; |
| 100 | ahd->sc_channel.chan_id = ahd->our_id; |
| 101 | ahd->sc_channel.chan_flags |= SCSIPI_CHAN_CANGROW; |
| 102 | |
| 103 | ahd->sc_child = config_found(ahd->sc_dev, &ahd->sc_channel, scsiprint); |
| 104 | |
| 105 | ahd_intr_enable(ahd, TRUE); |
| 106 | |
| 107 | if (ahd->flags & AHD_RESET_BUS_A) |
| 108 | ahd_reset_channel(ahd, 'A', TRUE); |
| 109 | |
| 110 | if (!pmf_device_register1(ahd->sc_dev, |
| 111 | ahd_pmf_suspend, ahd_pmf_resume, ahd_pmf_shutdown)) |
| 112 | aprint_error_dev(ahd->sc_dev, |
| 113 | "couldn't establish power handler\n" ); |
| 114 | |
| 115 | ahd_unlock(ahd, &s); |
| 116 | |
| 117 | return (1); |
| 118 | } |
| 119 | |
| 120 | static bool |
| 121 | ahd_pmf_suspend(device_t dev, const pmf_qual_t *qual) |
| 122 | { |
| 123 | struct ahd_softc *sc = device_private(dev); |
| 124 | #if 0 |
| 125 | return (ahd_suspend(sc) == 0); |
| 126 | #else |
| 127 | ahd_shutdown(sc); |
| 128 | return true; |
| 129 | #endif |
| 130 | } |
| 131 | |
| 132 | static bool |
| 133 | ahd_pmf_resume(device_t dev, const pmf_qual_t *qual) |
| 134 | { |
| 135 | #if 0 |
| 136 | struct ahd_softc *sc = device_private(dev); |
| 137 | |
| 138 | return (ahd_resume(sc) == 0); |
| 139 | #else |
| 140 | return true; |
| 141 | #endif |
| 142 | } |
| 143 | |
| 144 | static bool |
| 145 | ahd_pmf_shutdown(device_t dev, int howto) |
| 146 | { |
| 147 | struct ahd_softc *sc = device_private(dev); |
| 148 | |
| 149 | /* Disable all interrupt sources by resetting the controller */ |
| 150 | ahd_shutdown(sc); |
| 151 | |
| 152 | return true; |
| 153 | } |
| 154 | |
| 155 | static int |
| 156 | ahd_ioctl(struct scsipi_channel *channel, u_long cmd, |
| 157 | void *addr, int flag, struct proc *p) |
| 158 | { |
| 159 | struct ahd_softc *ahd; |
| 160 | int s, ret = ENOTTY; |
| 161 | |
| 162 | ahd = device_private(channel->chan_adapter->adapt_dev); |
| 163 | |
| 164 | switch (cmd) { |
| 165 | case SCBUSIORESET: |
| 166 | s = splbio(); |
| 167 | ahd_reset_channel(ahd, channel->chan_channel == 1 ? 'B' : 'A', TRUE); |
| 168 | splx(s); |
| 169 | ret = 0; |
| 170 | break; |
| 171 | default: |
| 172 | break; |
| 173 | } |
| 174 | |
| 175 | return ret; |
| 176 | } |
| 177 | |
| 178 | /* |
| 179 | * Catch an interrupt from the adapter |
| 180 | */ |
| 181 | void |
| 182 | ahd_platform_intr(void *arg) |
| 183 | { |
| 184 | struct ahd_softc *ahd; |
| 185 | |
| 186 | ahd = arg; |
| 187 | |
| 188 | printf("%s; ahd_platform_intr\n" , ahd_name(ahd)); |
| 189 | |
| 190 | ahd_intr(ahd); |
| 191 | } |
| 192 | |
| 193 | /* |
| 194 | * We have an scb which has been processed by the |
| 195 | * adaptor, now we look to see how the operation * went. |
| 196 | */ |
| 197 | void |
| 198 | ahd_done(struct ahd_softc *ahd, struct scb *scb) |
| 199 | { |
| 200 | struct scsipi_xfer *xs; |
| 201 | struct scsipi_periph *periph; |
| 202 | int s; |
| 203 | |
| 204 | LIST_REMOVE(scb, pending_links); |
| 205 | |
| 206 | xs = scb->xs; |
| 207 | periph = xs->xs_periph; |
| 208 | |
| 209 | callout_stop(&scb->xs->xs_callout); |
| 210 | |
| 211 | if (xs->datalen) { |
| 212 | int op; |
| 213 | |
| 214 | if (xs->xs_control & XS_CTL_DATA_IN) |
| 215 | op = BUS_DMASYNC_POSTREAD; |
| 216 | else |
| 217 | op = BUS_DMASYNC_POSTWRITE; |
| 218 | |
| 219 | bus_dmamap_sync(ahd->parent_dmat, scb->dmamap, 0, |
| 220 | scb->dmamap->dm_mapsize, op); |
| 221 | bus_dmamap_unload(ahd->parent_dmat, scb->dmamap); |
| 222 | } |
| 223 | |
| 224 | /* |
| 225 | * If the recovery SCB completes, we have to be |
| 226 | * out of our timeout. |
| 227 | */ |
| 228 | if ((scb->flags & SCB_RECOVERY_SCB) != 0) { |
| 229 | struct scb *list_scb; |
| 230 | |
| 231 | /* |
| 232 | * We were able to complete the command successfully, |
| 233 | * so reinstate the timeouts for all other pending |
| 234 | * commands. |
| 235 | */ |
| 236 | LIST_FOREACH(list_scb, &ahd->pending_scbs, pending_links) { |
| 237 | struct scsipi_xfer *txs = list_scb->xs; |
| 238 | |
| 239 | if (!(txs->xs_control & XS_CTL_POLL)) { |
| 240 | callout_reset(&txs->xs_callout, |
| 241 | (txs->timeout > 1000000) ? |
| 242 | (txs->timeout / 1000) * hz : |
| 243 | (txs->timeout * hz) / 1000, |
| 244 | ahd_timeout, list_scb); |
| 245 | } |
| 246 | } |
| 247 | |
| 248 | if (ahd_get_transaction_status(scb) != XS_NOERROR) |
| 249 | ahd_set_transaction_status(scb, XS_TIMEOUT); |
| 250 | scsipi_printaddr(xs->xs_periph); |
| 251 | printf("%s: no longer in timeout, status = %x\n" , |
| 252 | ahd_name(ahd), xs->status); |
| 253 | } |
| 254 | |
| 255 | if (xs->error != XS_NOERROR) { |
| 256 | /* Don't clobber any existing error state */ |
| 257 | } else if ((xs->status == SCSI_STATUS_BUSY) || |
| 258 | (xs->status == SCSI_STATUS_QUEUE_FULL)) { |
| 259 | ahd_set_transaction_status(scb, XS_BUSY); |
| 260 | printf("%s: drive (ID %d, LUN %d) queue full (SCB 0x%x)\n" , |
| 261 | ahd_name(ahd), SCB_GET_TARGET(ahd,scb), SCB_GET_LUN(scb), SCB_GET_TAG(scb)); |
| 262 | } else if ((scb->flags & SCB_SENSE) != 0) { |
| 263 | /* |
| 264 | * We performed autosense retrieval. |
| 265 | * |
| 266 | * zero the sense data before having |
| 267 | * the drive fill it. The SCSI spec mandates |
| 268 | * that any untransferred data should be |
| 269 | * assumed to be zero. Complete the 'bounce' |
| 270 | * of sense information through buffers accessible |
| 271 | * via bus-space by copying it into the clients |
| 272 | * csio. |
| 273 | */ |
| 274 | memset(&xs->sense.scsi_sense, 0, sizeof(xs->sense.scsi_sense)); |
| 275 | memcpy(&xs->sense.scsi_sense, ahd_get_sense_buf(ahd, scb), |
| 276 | sizeof(struct scsi_sense_data)); |
| 277 | |
| 278 | ahd_set_transaction_status(scb, XS_SENSE); |
| 279 | } else if ((scb->flags & SCB_PKT_SENSE) != 0) { |
| 280 | struct scsi_status_iu_header *siu; |
| 281 | u_int sense_len; |
| 282 | #ifdef AHD_DEBUG |
| 283 | int i; |
| 284 | #endif |
| 285 | /* |
| 286 | * Copy only the sense data into the provided buffer. |
| 287 | */ |
| 288 | siu = (struct scsi_status_iu_header *)scb->sense_data; |
| 289 | sense_len = MIN(scsi_4btoul(siu->sense_length), |
| 290 | sizeof(xs->sense.scsi_sense)); |
| 291 | memset(&xs->sense.scsi_sense, 0, sizeof(xs->sense.scsi_sense)); |
| 292 | memcpy(&xs->sense.scsi_sense, |
| 293 | scb->sense_data + SIU_SENSE_OFFSET(siu), sense_len); |
| 294 | #ifdef AHD_DEBUG |
| 295 | printf("Copied %d bytes of sense data offset %d:" , sense_len, |
| 296 | SIU_SENSE_OFFSET(siu)); |
| 297 | for (i = 0; i < sense_len; i++) |
| 298 | printf(" 0x%x" , ((uint8_t *)&xs->sense.scsi_sense)[i]); |
| 299 | printf("\n" ); |
| 300 | #endif |
| 301 | ahd_set_transaction_status(scb, XS_SENSE); |
| 302 | } |
| 303 | |
| 304 | if (scb->flags & SCB_FREEZE_QUEUE) { |
| 305 | scsipi_periph_thaw(periph, 1); |
| 306 | scb->flags &= ~SCB_FREEZE_QUEUE; |
| 307 | } |
| 308 | |
| 309 | if (scb->flags & SCB_REQUEUE) |
| 310 | ahd_set_transaction_status(scb, XS_REQUEUE); |
| 311 | |
| 312 | ahd_lock(ahd, &s); |
| 313 | ahd_free_scb(ahd, scb); |
| 314 | ahd_unlock(ahd, &s); |
| 315 | |
| 316 | scsipi_done(xs); |
| 317 | } |
| 318 | |
| 319 | static void |
| 320 | ahd_action(struct scsipi_channel *chan, scsipi_adapter_req_t req, void *arg) |
| 321 | { |
| 322 | struct ahd_softc *ahd; |
| 323 | struct ahd_initiator_tinfo *tinfo; |
| 324 | struct ahd_tmode_tstate *tstate; |
| 325 | |
| 326 | ahd = device_private(chan->chan_adapter->adapt_dev); |
| 327 | |
| 328 | switch(req) { |
| 329 | |
| 330 | case ADAPTER_REQ_RUN_XFER: |
| 331 | { |
| 332 | struct scsipi_xfer *xs; |
| 333 | struct scsipi_periph *periph; |
| 334 | struct scb *scb; |
| 335 | struct hardware_scb *hscb; |
| 336 | u_int target_id; |
| 337 | u_int our_id; |
| 338 | u_int col_idx; |
| 339 | char channel; |
| 340 | int s; |
| 341 | |
| 342 | xs = arg; |
| 343 | periph = xs->xs_periph; |
| 344 | |
| 345 | SC_DEBUG(periph, SCSIPI_DB3, ("ahd_action\n" )); |
| 346 | |
| 347 | target_id = periph->periph_target; |
| 348 | our_id = ahd->our_id; |
| 349 | channel = (chan->chan_channel == 1) ? 'B' : 'A'; |
| 350 | |
| 351 | /* |
| 352 | * get an scb to use. |
| 353 | */ |
| 354 | ahd_lock(ahd, &s); |
| 355 | tinfo = ahd_fetch_transinfo(ahd, channel, our_id, |
| 356 | target_id, &tstate); |
| 357 | |
| 358 | if (xs->xs_tag_type != 0 || |
| 359 | (tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) |
| 360 | col_idx = AHD_NEVER_COL_IDX; |
| 361 | else |
| 362 | col_idx = AHD_BUILD_COL_IDX(target_id, |
| 363 | periph->periph_lun); |
| 364 | |
| 365 | if ((scb = ahd_get_scb(ahd, col_idx)) == NULL) { |
| 366 | xs->error = XS_RESOURCE_SHORTAGE; |
| 367 | ahd_unlock(ahd, &s); |
| 368 | scsipi_done(xs); |
| 369 | return; |
| 370 | } |
| 371 | ahd_unlock(ahd, &s); |
| 372 | |
| 373 | hscb = scb->hscb; |
| 374 | |
| 375 | SC_DEBUG(periph, SCSIPI_DB3, ("start scb(%p)\n" , scb)); |
| 376 | scb->xs = xs; |
| 377 | |
| 378 | /* |
| 379 | * Put all the arguments for the xfer in the scb |
| 380 | */ |
| 381 | hscb->control = 0; |
| 382 | hscb->scsiid = BUILD_SCSIID(ahd, sim, target_id, our_id); |
| 383 | hscb->lun = periph->periph_lun; |
| 384 | if (xs->xs_control & XS_CTL_RESET) { |
| 385 | hscb->cdb_len = 0; |
| 386 | scb->flags |= SCB_DEVICE_RESET; |
| 387 | hscb->control |= MK_MESSAGE; |
| 388 | hscb->task_management = SIU_TASKMGMT_LUN_RESET; |
| 389 | ahd_execute_scb(scb, NULL, 0); |
| 390 | } else { |
| 391 | hscb->task_management = 0; |
| 392 | } |
| 393 | |
| 394 | ahd_setup_data(ahd, xs, scb); |
| 395 | break; |
| 396 | } |
| 397 | |
| 398 | case ADAPTER_REQ_GROW_RESOURCES: |
| 399 | #ifdef AHC_DEBUG |
| 400 | printf("%s: ADAPTER_REQ_GROW_RESOURCES\n" , ahd_name(ahd)); |
| 401 | #endif |
| 402 | chan->chan_adapter->adapt_openings += ahd_alloc_scbs(ahd); |
| 403 | if (ahd->scb_data.numscbs >= AHD_SCB_MAX_ALLOC) |
| 404 | chan->chan_flags &= ~SCSIPI_CHAN_CANGROW; |
| 405 | break; |
| 406 | |
| 407 | case ADAPTER_REQ_SET_XFER_MODE: |
| 408 | { |
| 409 | struct scsipi_xfer_mode *xm = arg; |
| 410 | struct ahd_devinfo devinfo; |
| 411 | int target_id, our_id, first; |
| 412 | u_int width; |
| 413 | int s; |
| 414 | char channel; |
| 415 | u_int ppr_options = 0, period, offset; |
| 416 | uint16_t old_autoneg; |
| 417 | |
| 418 | target_id = xm->xm_target; |
| 419 | our_id = chan->chan_id; |
| 420 | channel = 'A'; |
| 421 | s = splbio(); |
| 422 | tinfo = ahd_fetch_transinfo(ahd, channel, our_id, target_id, |
| 423 | &tstate); |
| 424 | ahd_compile_devinfo(&devinfo, our_id, target_id, |
| 425 | 0, channel, ROLE_INITIATOR); |
| 426 | |
| 427 | old_autoneg = tstate->auto_negotiate; |
| 428 | |
| 429 | /* |
| 430 | * XXX since the period and offset are not provided here, |
| 431 | * fake things by forcing a renegotiation using the user |
| 432 | * settings if this is called for the first time (i.e. |
| 433 | * during probe). Also, cap various values at the user |
| 434 | * values, assuming that the user set it up that way. |
| 435 | */ |
| 436 | if (ahd->inited_target[target_id] == 0) { |
| 437 | period = tinfo->user.period; |
| 438 | offset = tinfo->user.offset; |
| 439 | ppr_options = tinfo->user.ppr_options; |
| 440 | width = tinfo->user.width; |
| 441 | tstate->tagenable |= |
| 442 | (ahd->user_tagenable & devinfo.target_mask); |
| 443 | tstate->discenable |= |
| 444 | (ahd->user_discenable & devinfo.target_mask); |
| 445 | ahd->inited_target[target_id] = 1; |
| 446 | first = 1; |
| 447 | } else |
| 448 | first = 0; |
| 449 | |
| 450 | if (xm->xm_mode & (PERIPH_CAP_WIDE16 | PERIPH_CAP_DT)) |
| 451 | width = MSG_EXT_WDTR_BUS_16_BIT; |
| 452 | else |
| 453 | width = MSG_EXT_WDTR_BUS_8_BIT; |
| 454 | |
| 455 | ahd_validate_width(ahd, NULL, &width, ROLE_UNKNOWN); |
| 456 | if (width > tinfo->user.width) |
| 457 | width = tinfo->user.width; |
| 458 | ahd_set_width(ahd, &devinfo, width, AHD_TRANS_GOAL, FALSE); |
| 459 | |
| 460 | if (!(xm->xm_mode & (PERIPH_CAP_SYNC | PERIPH_CAP_DT))) { |
| 461 | period = 0; |
| 462 | offset = 0; |
| 463 | ppr_options = 0; |
| 464 | } |
| 465 | |
| 466 | if ((xm->xm_mode & PERIPH_CAP_DT) && |
| 467 | (tinfo->user.ppr_options & MSG_EXT_PPR_DT_REQ)) |
| 468 | ppr_options |= MSG_EXT_PPR_DT_REQ; |
| 469 | else |
| 470 | ppr_options &= ~MSG_EXT_PPR_DT_REQ; |
| 471 | |
| 472 | if ((tstate->discenable & devinfo.target_mask) == 0 || |
| 473 | (tstate->tagenable & devinfo.target_mask) == 0) |
| 474 | ppr_options &= ~MSG_EXT_PPR_IU_REQ; |
| 475 | |
| 476 | if ((xm->xm_mode & PERIPH_CAP_TQING) && |
| 477 | (ahd->user_tagenable & devinfo.target_mask)) |
| 478 | tstate->tagenable |= devinfo.target_mask; |
| 479 | else |
| 480 | tstate->tagenable &= ~devinfo.target_mask; |
| 481 | |
| 482 | ahd_find_syncrate(ahd, &period, &ppr_options, AHD_SYNCRATE_MAX); |
| 483 | ahd_validate_offset(ahd, NULL, period, &offset, |
| 484 | MSG_EXT_WDTR_BUS_8_BIT, ROLE_UNKNOWN); |
| 485 | if (offset == 0) { |
| 486 | period = 0; |
| 487 | ppr_options = 0; |
| 488 | } |
| 489 | if (ppr_options != 0 |
| 490 | && tinfo->user.transport_version >= 3) { |
| 491 | tinfo->goal.transport_version = |
| 492 | tinfo->user.transport_version; |
| 493 | tinfo->curr.transport_version = |
| 494 | tinfo->user.transport_version; |
| 495 | } |
| 496 | |
| 497 | ahd_set_syncrate(ahd, &devinfo, period, offset, |
| 498 | ppr_options, AHD_TRANS_GOAL, FALSE); |
| 499 | |
| 500 | /* |
| 501 | * If this is the first request, and no negotiation is |
| 502 | * needed, just confirm the state to the scsipi layer, |
| 503 | * so that it can print a message. |
| 504 | */ |
| 505 | if (old_autoneg == tstate->auto_negotiate && first) { |
| 506 | xm->xm_mode = 0; |
| 507 | xm->xm_period = tinfo->curr.period; |
| 508 | xm->xm_offset = tinfo->curr.offset; |
| 509 | if (tinfo->curr.width == MSG_EXT_WDTR_BUS_16_BIT) |
| 510 | xm->xm_mode |= PERIPH_CAP_WIDE16; |
| 511 | if (tinfo->curr.period) |
| 512 | xm->xm_mode |= PERIPH_CAP_SYNC; |
| 513 | if (tstate->tagenable & devinfo.target_mask) |
| 514 | xm->xm_mode |= PERIPH_CAP_TQING; |
| 515 | if (tinfo->curr.ppr_options & MSG_EXT_PPR_DT_REQ) |
| 516 | xm->xm_mode |= PERIPH_CAP_DT; |
| 517 | scsipi_async_event(chan, ASYNC_EVENT_XFER_MODE, xm); |
| 518 | } |
| 519 | splx(s); |
| 520 | } |
| 521 | } |
| 522 | |
| 523 | return; |
| 524 | } |
| 525 | |
| 526 | static void |
| 527 | ahd_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments) |
| 528 | { |
| 529 | struct scb *scb; |
| 530 | struct scsipi_xfer *xs; |
| 531 | struct ahd_softc *ahd; |
| 532 | struct ahd_initiator_tinfo *tinfo; |
| 533 | struct ahd_tmode_tstate *tstate; |
| 534 | u_int mask; |
| 535 | int s; |
| 536 | |
| 537 | scb = arg; |
| 538 | xs = scb->xs; |
| 539 | xs->error = 0; |
| 540 | xs->status = 0; |
| 541 | xs->xs_status = 0; |
| 542 | ahd = device_private( |
| 543 | xs->xs_periph->periph_channel->chan_adapter->adapt_dev); |
| 544 | |
| 545 | scb->sg_count = 0; |
| 546 | if (nsegments != 0) { |
| 547 | void *sg; |
| 548 | int op; |
| 549 | u_int i; |
| 550 | |
| 551 | ahd_setup_data_scb(ahd, scb); |
| 552 | |
| 553 | /* Copy the segments into our SG list */ |
| 554 | for (i = nsegments, sg = scb->sg_list; i > 0; i--) { |
| 555 | |
| 556 | sg = ahd_sg_setup(ahd, scb, sg, dm_segs->ds_addr, |
| 557 | dm_segs->ds_len, |
| 558 | /*last*/i == 1); |
| 559 | dm_segs++; |
| 560 | } |
| 561 | |
| 562 | if (xs->xs_control & XS_CTL_DATA_IN) |
| 563 | op = BUS_DMASYNC_PREREAD; |
| 564 | else |
| 565 | op = BUS_DMASYNC_PREWRITE; |
| 566 | |
| 567 | bus_dmamap_sync(ahd->parent_dmat, scb->dmamap, 0, |
| 568 | scb->dmamap->dm_mapsize, op); |
| 569 | } |
| 570 | |
| 571 | ahd_lock(ahd, &s); |
| 572 | |
| 573 | /* |
| 574 | * Last time we need to check if this SCB needs to |
| 575 | * be aborted. |
| 576 | */ |
| 577 | if (ahd_get_scsi_status(scb) == XS_STS_DONE) { |
| 578 | if (nsegments != 0) |
| 579 | bus_dmamap_unload(ahd->parent_dmat, |
| 580 | scb->dmamap); |
| 581 | ahd_free_scb(ahd, scb); |
| 582 | ahd_unlock(ahd, &s); |
| 583 | return; |
| 584 | } |
| 585 | |
| 586 | tinfo = ahd_fetch_transinfo(ahd, SCSIID_CHANNEL(ahd, scb->hscb->scsiid), |
| 587 | SCSIID_OUR_ID(scb->hscb->scsiid), |
| 588 | SCSIID_TARGET(ahd, scb->hscb->scsiid), |
| 589 | &tstate); |
| 590 | |
| 591 | mask = SCB_GET_TARGET_MASK(ahd, scb); |
| 592 | |
| 593 | if ((tstate->discenable & mask) != 0) |
| 594 | scb->hscb->control |= DISCENB; |
| 595 | |
| 596 | if ((tstate->tagenable & mask) != 0) |
| 597 | scb->hscb->control |= xs->xs_tag_type|TAG_ENB; |
| 598 | |
| 599 | if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU) != 0) { |
| 600 | scb->flags |= SCB_PACKETIZED; |
| 601 | if (scb->hscb->task_management != 0) |
| 602 | scb->hscb->control &= ~MK_MESSAGE; |
| 603 | } |
| 604 | |
| 605 | #if 0 /* This looks like it makes sense at first, but it can loop */ |
| 606 | if ((xs->xs_control & XS_CTL_DISCOVERY) && |
| 607 | (tinfo->goal.width != 0 |
| 608 | || tinfo->goal.period != 0 |
| 609 | || tinfo->goal.ppr_options != 0)) { |
| 610 | scb->flags |= SCB_NEGOTIATE; |
| 611 | scb->hscb->control |= MK_MESSAGE; |
| 612 | } else |
| 613 | #endif |
| 614 | if ((tstate->auto_negotiate & mask) != 0) { |
| 615 | scb->flags |= SCB_AUTO_NEGOTIATE; |
| 616 | scb->hscb->control |= MK_MESSAGE; |
| 617 | } |
| 618 | |
| 619 | LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links); |
| 620 | |
| 621 | scb->flags |= SCB_ACTIVE; |
| 622 | |
| 623 | if (!(xs->xs_control & XS_CTL_POLL)) { |
| 624 | callout_reset(&scb->xs->xs_callout, xs->timeout > 1000000 ? |
| 625 | (xs->timeout / 1000) * hz : (xs->timeout * hz) / 1000, |
| 626 | ahd_timeout, scb); |
| 627 | } |
| 628 | |
| 629 | if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) { |
| 630 | /* Define a mapping from our tag to the SCB. */ |
| 631 | ahd->scb_data.scbindex[SCB_GET_TAG(scb)] = scb; |
| 632 | ahd_pause(ahd); |
| 633 | ahd_set_scbptr(ahd, SCB_GET_TAG(scb)); |
| 634 | ahd_outb(ahd, RETURN_1, CONT_MSG_LOOP_TARG); |
| 635 | ahd_unpause(ahd); |
| 636 | } else { |
| 637 | ahd_queue_scb(ahd, scb); |
| 638 | } |
| 639 | |
| 640 | if (!(xs->xs_control & XS_CTL_POLL)) { |
| 641 | ahd_unlock(ahd, &s); |
| 642 | return; |
| 643 | } |
| 644 | /* |
| 645 | * If we can't use interrupts, poll for completion |
| 646 | */ |
| 647 | SC_DEBUG(xs->xs_periph, SCSIPI_DB3, ("cmd_poll\n" )); |
| 648 | do { |
| 649 | if (ahd_poll(ahd, xs->timeout)) { |
| 650 | if (!(xs->xs_control & XS_CTL_SILENT)) |
| 651 | printf("cmd fail\n" ); |
| 652 | ahd_timeout(scb); |
| 653 | break; |
| 654 | } |
| 655 | } while (!(xs->xs_status & XS_STS_DONE)); |
| 656 | |
| 657 | ahd_unlock(ahd, &s); |
| 658 | } |
| 659 | |
| 660 | static int |
| 661 | ahd_poll(struct ahd_softc *ahd, int wait) |
| 662 | { |
| 663 | |
| 664 | while (--wait) { |
| 665 | DELAY(1000); |
| 666 | if (ahd_inb(ahd, INTSTAT) & INT_PEND) |
| 667 | break; |
| 668 | } |
| 669 | |
| 670 | if (wait == 0) { |
| 671 | printf("%s: board is not responding\n" , ahd_name(ahd)); |
| 672 | return (EIO); |
| 673 | } |
| 674 | |
| 675 | ahd_intr(ahd); |
| 676 | return (0); |
| 677 | } |
| 678 | |
| 679 | |
| 680 | static void |
| 681 | ahd_setup_data(struct ahd_softc *ahd, struct scsipi_xfer *xs, |
| 682 | struct scb *scb) |
| 683 | { |
| 684 | struct hardware_scb *hscb; |
| 685 | |
| 686 | hscb = scb->hscb; |
| 687 | xs->resid = xs->status = 0; |
| 688 | |
| 689 | hscb->cdb_len = xs->cmdlen; |
| 690 | if (hscb->cdb_len > MAX_CDB_LEN) { |
| 691 | int s; |
| 692 | /* |
| 693 | * Should CAM start to support CDB sizes |
| 694 | * greater than 16 bytes, we could use |
| 695 | * the sense buffer to store the CDB. |
| 696 | */ |
| 697 | ahd_set_transaction_status(scb, |
| 698 | XS_DRIVER_STUFFUP); |
| 699 | |
| 700 | ahd_lock(ahd, &s); |
| 701 | ahd_free_scb(ahd, scb); |
| 702 | ahd_unlock(ahd, &s); |
| 703 | scsipi_done(xs); |
| 704 | } |
| 705 | memcpy(hscb->shared_data.idata.cdb, xs->cmd, hscb->cdb_len); |
| 706 | |
| 707 | /* Only use S/G if there is a transfer */ |
| 708 | if (xs->datalen) { |
| 709 | int error; |
| 710 | |
| 711 | error = bus_dmamap_load(ahd->parent_dmat, |
| 712 | scb->dmamap, xs->data, |
| 713 | xs->datalen, NULL, |
| 714 | ((xs->xs_control & XS_CTL_NOSLEEP) ? |
| 715 | BUS_DMA_NOWAIT : BUS_DMA_WAITOK) | |
| 716 | BUS_DMA_STREAMING | |
| 717 | ((xs->xs_control & XS_CTL_DATA_IN) ? |
| 718 | BUS_DMA_READ : BUS_DMA_WRITE)); |
| 719 | if (error) { |
| 720 | #ifdef AHD_DEBUG |
| 721 | printf("%s: in ahd_setup_data(): bus_dmamap_load() " |
| 722 | "= %d\n" , |
| 723 | ahd_name(ahd), error); |
| 724 | #endif |
| 725 | xs->error = XS_RESOURCE_SHORTAGE; |
| 726 | scsipi_done(xs); |
| 727 | return; |
| 728 | } |
| 729 | ahd_execute_scb(scb, |
| 730 | scb->dmamap->dm_segs, |
| 731 | scb->dmamap->dm_nsegs); |
| 732 | } else { |
| 733 | ahd_execute_scb(scb, NULL, 0); |
| 734 | } |
| 735 | } |
| 736 | |
| 737 | void |
| 738 | ahd_timeout(void *arg) |
| 739 | { |
| 740 | struct scb *scb; |
| 741 | struct ahd_softc *ahd; |
| 742 | int s; |
| 743 | |
| 744 | scb = arg; |
| 745 | ahd = scb->ahd_softc; |
| 746 | |
| 747 | printf("%s: ahd_timeout\n" , ahd_name(ahd)); |
| 748 | |
| 749 | ahd_lock(ahd, &s); |
| 750 | |
| 751 | ahd_pause_and_flushwork(ahd); |
| 752 | (void)ahd_save_modes(ahd); |
| 753 | #if 0 |
| 754 | ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); |
| 755 | ahd_outb(ahd, SCSISIGO, ACKO); |
| 756 | printf("set ACK\n" ); |
| 757 | ahd_outb(ahd, SCSISIGO, 0); |
| 758 | printf("clearing Ack\n" ); |
| 759 | ahd_restore_modes(ahd, saved_modes); |
| 760 | #endif |
| 761 | if ((scb->flags & SCB_ACTIVE) == 0) { |
| 762 | /* Previous timeout took care of me already */ |
| 763 | printf("%s: Timedout SCB already complete. " |
| 764 | "Interrupts may not be functioning.\n" , ahd_name(ahd)); |
| 765 | ahd_unpause(ahd); |
| 766 | ahd_unlock(ahd, &s); |
| 767 | return; |
| 768 | } |
| 769 | |
| 770 | ahd_print_path(ahd, scb); |
| 771 | printf("SCB 0x%x - timed out\n" , SCB_GET_TAG(scb)); |
| 772 | ahd_dump_card_state(ahd); |
| 773 | ahd_reset_channel(ahd, SIM_CHANNEL(ahd, sim), |
| 774 | /*initiate reset*/TRUE); |
| 775 | ahd_unlock(ahd, &s); |
| 776 | return; |
| 777 | } |
| 778 | |
| 779 | int |
| 780 | ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg) |
| 781 | { |
| 782 | ahd->platform_data = malloc(sizeof(struct ahd_platform_data), M_DEVBUF, |
| 783 | M_NOWAIT /*| M_ZERO*/); |
| 784 | if (ahd->platform_data == NULL) |
| 785 | return (ENOMEM); |
| 786 | |
| 787 | memset(ahd->platform_data, 0, sizeof(struct ahd_platform_data)); |
| 788 | |
| 789 | return (0); |
| 790 | } |
| 791 | |
| 792 | void |
| 793 | ahd_platform_free(struct ahd_softc *ahd) |
| 794 | { |
| 795 | free(ahd->platform_data, M_DEVBUF); |
| 796 | } |
| 797 | |
| 798 | int |
| 799 | ahd_softc_comp(struct ahd_softc *lahd, struct ahd_softc *rahd) |
| 800 | { |
| 801 | /* We don't sort softcs under NetBSD so report equal always */ |
| 802 | return (0); |
| 803 | } |
| 804 | |
| 805 | int |
| 806 | ahd_detach(struct ahd_softc *ahd, int flags) |
| 807 | { |
| 808 | int rv = 0; |
| 809 | |
| 810 | if (ahd->sc_child != NULL) |
| 811 | rv = config_detach(ahd->sc_child, flags); |
| 812 | |
| 813 | pmf_device_deregister(ahd->sc_dev); |
| 814 | |
| 815 | ahd_free(ahd); |
| 816 | |
| 817 | return rv; |
| 818 | } |
| 819 | |
| 820 | void |
| 821 | ahd_platform_set_tags(struct ahd_softc *ahd, |
| 822 | struct ahd_devinfo *devinfo, ahd_queue_alg alg) |
| 823 | { |
| 824 | struct ahd_tmode_tstate *tstate; |
| 825 | |
| 826 | ahd_fetch_transinfo(ahd, devinfo->channel, devinfo->our_scsiid, |
| 827 | devinfo->target, &tstate); |
| 828 | |
| 829 | if (alg != AHD_QUEUE_NONE) |
| 830 | tstate->tagenable |= devinfo->target_mask; |
| 831 | else |
| 832 | tstate->tagenable &= ~devinfo->target_mask; |
| 833 | } |
| 834 | |
| 835 | void |
| 836 | ahd_send_async(struct ahd_softc *ahd, char channel, u_int target, u_int lun, |
| 837 | ac_code code, void *opt_arg) |
| 838 | { |
| 839 | struct ahd_tmode_tstate *tstate; |
| 840 | struct ahd_initiator_tinfo *tinfo; |
| 841 | struct ahd_devinfo devinfo; |
| 842 | struct scsipi_channel *chan; |
| 843 | struct scsipi_xfer_mode xm; |
| 844 | |
| 845 | #ifdef DIAGNOSTIC |
| 846 | if (channel != 'A') |
| 847 | panic("ahd_send_async: not channel A" ); |
| 848 | #endif |
| 849 | chan = &ahd->sc_channel; |
| 850 | switch (code) { |
| 851 | case AC_TRANSFER_NEG: |
| 852 | tinfo = ahd_fetch_transinfo(ahd, channel, ahd->our_id, target, |
| 853 | &tstate); |
| 854 | ahd_compile_devinfo(&devinfo, ahd->our_id, target, lun, |
| 855 | channel, ROLE_UNKNOWN); |
| 856 | /* |
| 857 | * Don't bother if negotiating. XXX? |
| 858 | */ |
| 859 | if (tinfo->curr.period != tinfo->goal.period |
| 860 | || tinfo->curr.width != tinfo->goal.width |
| 861 | || tinfo->curr.offset != tinfo->goal.offset |
| 862 | || tinfo->curr.ppr_options != tinfo->goal.ppr_options) |
| 863 | break; |
| 864 | xm.xm_target = target; |
| 865 | xm.xm_mode = 0; |
| 866 | xm.xm_period = tinfo->curr.period; |
| 867 | xm.xm_offset = tinfo->curr.offset; |
| 868 | if (tinfo->goal.ppr_options & MSG_EXT_PPR_DT_REQ) |
| 869 | xm.xm_mode |= PERIPH_CAP_DT; |
| 870 | if (tinfo->curr.width == MSG_EXT_WDTR_BUS_16_BIT) |
| 871 | xm.xm_mode |= PERIPH_CAP_WIDE16; |
| 872 | if (tinfo->curr.period) |
| 873 | xm.xm_mode |= PERIPH_CAP_SYNC; |
| 874 | if (tstate->tagenable & devinfo.target_mask) |
| 875 | xm.xm_mode |= PERIPH_CAP_TQING; |
| 876 | scsipi_async_event(chan, ASYNC_EVENT_XFER_MODE, &xm); |
| 877 | break; |
| 878 | case AC_BUS_RESET: |
| 879 | scsipi_async_event(chan, ASYNC_EVENT_RESET, NULL); |
| 880 | case AC_SENT_BDR: |
| 881 | default: |
| 882 | break; |
| 883 | } |
| 884 | } |
| 885 | |