Annotation of sys/dev/ic/dpt.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: dpt.c,v 1.12 2007/04/10 17:47:55 miod Exp $ */
! 2: /* $NetBSD: dpt.c,v 1.12 1999/10/23 16:26:33 ad Exp $ */
! 3:
! 4: /*-
! 5: * Copyright (c) 1997, 1998, 1999 The NetBSD Foundation, Inc.
! 6: * All rights reserved.
! 7: *
! 8: * This code is derived from software contributed to The NetBSD Foundation
! 9: * by Andy Doran, Charles M. Hannum and by Jason R. Thorpe of the Numerical
! 10: * Aerospace Simulation Facility, NASA Ames Research Center.
! 11: *
! 12: * Redistribution and use in source and binary forms, with or without
! 13: * modification, are permitted provided that the following conditions
! 14: * are met:
! 15: * 1. Redistributions of source code must retain the above copyright
! 16: * notice, this list of conditions and the following disclaimer.
! 17: * 2. Redistributions in binary form must reproduce the above copyright
! 18: * notice, this list of conditions and the following disclaimer in the
! 19: * documentation and/or other materials provided with the distribution.
! 20: * 3. All advertising materials mentioning features or use of this software
! 21: * must display the following acknowledgement:
! 22: * This product includes software developed by the NetBSD
! 23: * Foundation, Inc. and its contributors.
! 24: * 4. Neither the name of The NetBSD Foundation nor the names of its
! 25: * contributors may be used to endorse or promote products derived
! 26: * from this software without specific prior written permission.
! 27: *
! 28: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
! 29: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
! 30: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
! 31: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
! 32: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
! 33: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
! 34: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
! 35: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
! 36: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
! 37: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
! 38: * POSSIBILITY OF SUCH DAMAGE.
! 39: */
! 40:
! 41: /*
! 42: * Portions of this code fall under the following copyright:
! 43: *
! 44: * Originally written by Julian Elischer (julian@tfs.com)
! 45: * for TRW Financial Systems for use under the MACH(2.5) operating system.
! 46: *
! 47: * TRW Financial Systems, in accordance with their agreement with Carnegie
! 48: * Mellon University, makes this software available to CMU to distribute
! 49: * or use in any manner that they see fit as long as this message is kept with
! 50: * the software. For this reason TFS also grants any other persons or
! 51: * organisations permission to use or modify this software.
! 52: *
! 53: * TFS supplies this software to be publicly redistributed
! 54: * on the understanding that TFS is not responsible for the correct
! 55: * functioning of this software in any circumstances.
! 56: */
! 57:
! 58: /*
! 59: * Driver for DPT EATA SCSI adapters.
! 60: *
! 61: * TODO:
! 62: *
! 63: * o Need a front-end for (newer) ISA boards.
! 64: * o Handle older firmware better.
! 65: * o Find a bunch of different firmware EEPROMs and try them out.
! 66: * o Test with a bunch of different boards.
! 67: * o dpt_readcfg() should not be using CP_PIO_GETCFG.
! 68: * o An interface to userland applications.
! 69: * o Some sysctls or a utility (eg dptctl(8)) to control parameters.
! 70: */
! 71:
! 72: #include <sys/cdefs.h>
! 73: #ifdef __NetBSD__
! 74: __KERNEL_RCSID(0, "$NetBSD: dpt.c,v 1.12 1999/10/23 16:26:33 ad Exp $");
! 75: #endif /* __NetBSD__ */
! 76:
! 77: #include <sys/param.h>
! 78: #include <sys/systm.h>
! 79: #include <sys/kernel.h>
! 80: #include <sys/device.h>
! 81: #include <sys/queue.h>
! 82: #include <sys/proc.h>
! 83: #include <sys/buf.h>
! 84:
! 85: #include <machine/endian.h>
! 86: #ifdef __NetBSD__
! 87: #include <machine/bswap.h>
! 88: #endif /* __NetBSD__ */
! 89: #include <machine/bus.h>
! 90:
! 91: #ifdef __NetBSD__
! 92: #include <dev/scsipi/scsi_all.h>
! 93: #include <dev/scsipi/scsipi_all.h>
! 94: #include <dev/scsipi/scsiconf.h>
! 95: #endif /* __NetBSD__ */
! 96: #ifdef __OpenBSD__
! 97: #include <scsi/scsi_all.h>
! 98: #include <scsi/scsiconf.h>
! 99: #endif /* __OpenBSD__ */
! 100:
! 101: #include <dev/ic/dptreg.h>
! 102: #include <dev/ic/dptvar.h>
! 103:
! 104: #ifdef __OpenBSD__
! 105: static void dpt_enqueue(struct dpt_softc *, struct scsi_xfer *, int);
! 106: static struct scsi_xfer *dpt_dequeue(struct dpt_softc *);
! 107:
! 108: struct cfdriver dpt_cd = {
! 109: NULL, "dpt", DV_DULL
! 110: };
! 111: #endif /* __OpenBSD__ */
! 112:
! 113: /* A default for our link struct */
! 114: #ifdef __NetBSD__
! 115: static struct scsipi_device dpt_dev = {
! 116: #endif /* __NetBSD__ */
! 117: #ifdef __OpenBSD__
! 118: static struct scsi_device dpt_dev = {
! 119: #endif /* __OpenBSD__ */
! 120: NULL, /* Use default error handler */
! 121: NULL, /* have a queue, served by this */
! 122: NULL, /* have no async handler */
! 123: NULL, /* Use default 'done' routine */
! 124: };
! 125:
! 126: #ifndef offsetof
! 127: #define offsetof(type, member) (int)((&((type *)0)->member))
! 128: #endif /* offsetof */
! 129:
! 130: static char *dpt_cname[] = {
! 131: "PM3334", "SmartRAID IV",
! 132: "PM3332", "SmartRAID IV",
! 133: "PM2144", "SmartCache IV",
! 134: "PM2044", "SmartCache IV",
! 135: "PM2142", "SmartCache IV",
! 136: "PM2042", "SmartCache IV",
! 137: "PM2041", "SmartCache IV",
! 138: "PM3224", "SmartRAID III",
! 139: "PM3222", "SmartRAID III",
! 140: "PM3021", "SmartRAID III",
! 141: "PM2124", "SmartCache III",
! 142: "PM2024", "SmartCache III",
! 143: "PM2122", "SmartCache III",
! 144: "PM2022", "SmartCache III",
! 145: "PM2021", "SmartCache III",
! 146: "SK2012", "SmartCache Plus",
! 147: "SK2011", "SmartCache Plus",
! 148: NULL, "unknown adapter, please report using sendbug(1)",
! 149: };
! 150:
! 151: /*
! 152: * Handle an interrupt from the HBA.
! 153: */
! 154: int
! 155: dpt_intr(xxx_sc)
! 156: void *xxx_sc;
! 157: {
! 158: struct dpt_softc *sc;
! 159: struct dpt_ccb *ccb;
! 160: struct eata_sp *sp;
! 161: static int moretimo;
! 162: int more;
! 163:
! 164: sc = xxx_sc;
! 165: sp = sc->sc_statpack;
! 166:
! 167: if (!sp) {
! 168: #ifdef DEBUG
! 169: printf("%s: premature intr (st:%02x aux:%02x)\n",
! 170: sc->sc_dv.dv_xname, dpt_inb(sc, HA_STATUS),
! 171: dpt_inb(sc, HA_AUX_STATUS));
! 172: #else /* DEBUG */
! 173: (void) dpt_inb(sc, HA_STATUS);
! 174: #endif /* DEBUG */
! 175: return (0);
! 176: }
! 177:
! 178: more = 0;
! 179:
! 180: #ifdef DEBUG
! 181: if ((dpt_inb(sc, HA_AUX_STATUS) & HA_AUX_INTR) == 0)
! 182: printf("%s: spurious intr\n", sc->sc_dv.dv_xname);
! 183: #endif
! 184:
! 185: /* Don't get stalled by HA_ST_MORE */
! 186: if (moretimo < DPT_MORE_TIMEOUT / 100)
! 187: moretimo = 0;
! 188:
! 189: for (;;) {
! 190: /*
! 191: * HBA might have interrupted while we were dealing with the
! 192: * last completed command, since we ACK before we deal; keep
! 193: * polling. If no interrupt is signalled, but the HBA has
! 194: * indicated that more data will be available soon, hang
! 195: * around.
! 196: */
! 197: if ((dpt_inb(sc, HA_AUX_STATUS) & HA_AUX_INTR) == 0) {
! 198: if (more != 0 && moretimo++ < DPT_MORE_TIMEOUT / 100) {
! 199: DELAY(10);
! 200: continue;
! 201: }
! 202: break;
! 203: }
! 204:
! 205: bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap_ccb, sc->sc_spoff,
! 206: sizeof(struct eata_sp), BUS_DMASYNC_POSTREAD);
! 207:
! 208: if (!sp) {
! 209: more = dpt_inb(sc, HA_STATUS) & HA_ST_MORE;
! 210:
! 211: /* Don't get stalled by HA_ST_MORE */
! 212: if (moretimo < DPT_MORE_TIMEOUT / 100)
! 213: moretimo = 0;
! 214: continue;
! 215: }
! 216:
! 217: /* Might have looped before HBA can reset HBA_AUX_INTR */
! 218: if (sp->sp_ccbid == -1) {
! 219: DELAY(50);
! 220: #ifdef DIAGNOSTIC
! 221: printf("%s: slow reset of HA_AUX_STATUS?",
! 222: sc->sc_dv.dv_xname);
! 223: #endif
! 224: if ((dpt_inb(sc, HA_AUX_STATUS) & HA_AUX_INTR) == 0)
! 225: return (0);
! 226: #ifdef DIAGNOSTIC
! 227: printf("%s: was a slow reset of HA_AUX_STATUS",
! 228: sc->sc_dv.dv_xname);
! 229: #endif
! 230: /* Re-sync DMA map */
! 231: bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap_ccb,
! 232: sc->sc_spoff, sizeof(struct eata_sp),
! 233: BUS_DMASYNC_POSTREAD);
! 234: }
! 235:
! 236: /* Make sure CCB ID from status packet is realistic */
! 237: if (sp->sp_ccbid >= 0 && sp->sp_ccbid < sc->sc_nccbs) {
! 238: /* Sync up DMA map and cache cmd status */
! 239: ccb = sc->sc_ccbs + sp->sp_ccbid;
! 240:
! 241: bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap_ccb,
! 242: CCB_OFF(sc, ccb), sizeof(struct dpt_ccb),
! 243: BUS_DMASYNC_POSTWRITE);
! 244:
! 245: ccb->ccb_hba_status = sp->sp_hba_status & 0x7F;
! 246: ccb->ccb_scsi_status = sp->sp_scsi_status;
! 247:
! 248: /*
! 249: * Ack the interrupt and process the CCB. If this
! 250: * is a private CCB it's up to dpt_poll() to notice.
! 251: */
! 252: sp->sp_ccbid = -1;
! 253: ccb->ccb_flg |= CCB_INTR;
! 254: more = dpt_inb(sc, HA_STATUS) & HA_ST_MORE;
! 255: if ((ccb->ccb_flg & CCB_PRIVATE) == 0)
! 256: dpt_done_ccb(sc, ccb);
! 257: } else {
! 258: printf("%s: bogus status (returned CCB id %d)\n",
! 259: sc->sc_dv.dv_xname, sp->sp_ccbid);
! 260:
! 261: /* Ack the interrupt */
! 262: sp->sp_ccbid = -1;
! 263: more = dpt_inb(sc, HA_STATUS) & HA_ST_MORE;
! 264: }
! 265:
! 266: /* Don't get stalled by HA_ST_MORE */
! 267: if (moretimo < DPT_MORE_TIMEOUT / 100)
! 268: moretimo = 0;
! 269: }
! 270:
! 271: return (0);
! 272: }
! 273:
! 274: /*
! 275: * Initialize and attach the HBA. This is the entry point from bus
! 276: * specific probe-and-attach code.
! 277: */
! 278: void
! 279: dpt_init(sc, intrstr)
! 280: struct dpt_softc *sc;
! 281: const char *intrstr;
! 282: {
! 283: struct eata_inquiry_data *ei;
! 284: int i, j, error, rseg, mapsize;
! 285: bus_dma_segment_t seg;
! 286: struct eata_cfg *ec;
! 287: char model[16];
! 288:
! 289: ec = &sc->sc_ec;
! 290:
! 291: /* Allocate the CCB/status packet/scratch DMA map and load */
! 292: sc->sc_nccbs = min(betoh16(*(int16_t *)ec->ec_queuedepth),
! 293: DPT_MAX_CCBS);
! 294: sc->sc_spoff = sc->sc_nccbs * sizeof(struct dpt_ccb);
! 295: sc->sc_scroff = sc->sc_spoff + sizeof(struct eata_sp);
! 296: sc->sc_scrlen = 256; /* XXX */
! 297: mapsize = sc->sc_nccbs * sizeof(struct dpt_ccb) + sc->sc_scrlen +
! 298: sizeof(struct eata_sp);
! 299:
! 300: if ((error = bus_dmamem_alloc(sc->sc_dmat, mapsize, NBPG, 0,
! 301: &seg, 1, &rseg, BUS_DMA_NOWAIT)) != 0) {
! 302: printf("%s: unable to allocate CCBs, error = %d\n",
! 303: sc->sc_dv.dv_xname, error);
! 304: return;
! 305: }
! 306:
! 307: if ((error = bus_dmamem_map(sc->sc_dmat, &seg, rseg, mapsize,
! 308: (caddr_t *)&sc->sc_ccbs, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) != 0) {
! 309: printf("%s: unable to map CCBs, error = %d\n",
! 310: sc->sc_dv.dv_xname, error);
! 311: return;
! 312: }
! 313:
! 314: if ((error = bus_dmamap_create(sc->sc_dmat, mapsize, mapsize, 1, 0,
! 315: BUS_DMA_NOWAIT, &sc->sc_dmamap_ccb)) != 0) {
! 316: printf("%s: unable to create CCB DMA map, error = %d\n",
! 317: sc->sc_dv.dv_xname, error);
! 318: return;
! 319: }
! 320:
! 321: if ((error = bus_dmamap_load(sc->sc_dmat, sc->sc_dmamap_ccb,
! 322: sc->sc_ccbs, mapsize, NULL, BUS_DMA_NOWAIT)) != 0) {
! 323: printf("%s: unable to load CCB DMA map, error = %d\n",
! 324: sc->sc_dv.dv_xname, error);
! 325: return;
! 326: }
! 327:
! 328: sc->sc_statpack = (struct eata_sp *)((caddr_t)sc->sc_ccbs +
! 329: sc->sc_spoff);
! 330: sc->sc_sppa = sc->sc_dmamap_ccb->dm_segs[0].ds_addr + sc->sc_spoff;
! 331: sc->sc_scr = (caddr_t)sc->sc_ccbs + sc->sc_scroff;
! 332: sc->sc_scrpa = sc->sc_dmamap_ccb->dm_segs[0].ds_addr + sc->sc_scroff;
! 333: sc->sc_statpack->sp_ccbid = -1;
! 334:
! 335: /* Initialize the CCBs */
! 336: TAILQ_INIT(&sc->sc_free_ccb);
! 337: i = dpt_create_ccbs(sc, sc->sc_ccbs, sc->sc_nccbs);
! 338:
! 339: if (i == 0) {
! 340: printf("%s: unable to create CCBs\n", sc->sc_dv.dv_xname);
! 341: return;
! 342: } else if (i != sc->sc_nccbs) {
! 343: printf("%s: %d/%d CCBs created!\n", sc->sc_dv.dv_xname, i,
! 344: sc->sc_nccbs);
! 345: sc->sc_nccbs = i;
! 346: }
! 347:
! 348: /* Set shutdownhook before we start any device activity */
! 349: sc->sc_sdh = shutdownhook_establish(dpt_shutdown, sc);
! 350:
! 351: /* Get the page 0 inquiry data from the HBA */
! 352: dpt_hba_inquire(sc, &ei);
! 353:
! 354: /*
! 355: * dpt0 at pci0 dev 12 function 0: DPT SmartRAID III (PM3224A/9X-R)
! 356: * dpt0: interrupting at irq 10
! 357: * dpt0: 64 queued commands, 1 channel(s), adapter on ID(s) 7
! 358: */
! 359: for (i = 0; ei->ei_vendor[i] != ' ' && i < 8; i++)
! 360: ;
! 361: ei->ei_vendor[i] = '\0';
! 362:
! 363: for (i = 0; ei->ei_model[i] != ' ' && i < 7; i++)
! 364: model[i] = ei->ei_model[i];
! 365: for (j = 0; ei->ei_suffix[j] != ' ' && j < 7; j++)
! 366: model[i++] = ei->ei_suffix[j];
! 367: model[i] = '\0';
! 368:
! 369: /* Find the canonical name for the board */
! 370: for (i = 0; dpt_cname[i] != NULL; i += 2)
! 371: if (memcmp(ei->ei_model, dpt_cname[i], 6) == 0)
! 372: break;
! 373:
! 374: printf("%s %s (%s)\n", ei->ei_vendor, dpt_cname[i + 1], model);
! 375:
! 376: if (intrstr != NULL)
! 377: printf("%s: interrupting at %s\n", sc->sc_dv.dv_xname, intrstr);
! 378:
! 379: printf("%s: %d queued commands, %d channel(s), adapter on ID(s)",
! 380: sc->sc_dv.dv_xname, sc->sc_nccbs, ec->ec_maxchannel + 1);
! 381:
! 382: for (i = 0; i <= ec->ec_maxchannel; i++)
! 383: printf(" %d", ec->ec_hba[3 - i]);
! 384: printf("\n");
! 385:
! 386: /* Reset the SCSI bus */
! 387: if (dpt_cmd(sc, NULL, 0, CP_IMMEDIATE, CPI_BUS_RESET))
! 388: panic("%s: dpt_cmd failed", sc->sc_dv.dv_xname);
! 389: DELAY(20000);
! 390:
! 391: /* Fill in the adapter, each link and attach in turn */
! 392: #ifdef __NetBSD__
! 393: sc->sc_adapter.scsipi_cmd = dpt_scsi_cmd;
! 394: sc->sc_adapter.scsipi_minphys = dpt_minphys;
! 395: #endif /* __NetBSD__ */
! 396: #ifdef __OpenBSD__
! 397: sc->sc_adapter.scsi_cmd = dpt_scsi_cmd;
! 398: sc->sc_adapter.scsi_minphys = dpt_minphys;
! 399: #endif /* __OpenBSD__ */
! 400:
! 401: for (i = 0; i <= ec->ec_maxchannel; i++) {
! 402: #ifdef __NetBSD__
! 403: struct scsipi_link *link;
! 404: #endif /* __NetBSD__ */
! 405: #ifdef __OpenBSD__
! 406: struct scsi_link *link;
! 407: #endif /* __OpenBSD__ */
! 408: sc->sc_hbaid[i] = ec->ec_hba[3 - i];
! 409: link = &sc->sc_link[i];
! 410: #ifdef __NetBSD__
! 411: link->scsipi_scsi.scsibus = i;
! 412: link->scsipi_scsi.adapter_target = sc->sc_hbaid[i];
! 413: link->scsipi_scsi.max_lun = ec->ec_maxlun;
! 414: link->scsipi_scsi.max_target = ec->ec_maxtarget;
! 415: link->type = BUS_SCSI;
! 416: #endif /* __NetBSD__ */
! 417: #ifdef __OpenBSD__
! 418: link->scsibus = i;
! 419: link->adapter_target = sc->sc_hbaid[i];
! 420: link->luns = ec->ec_maxlun + 1;
! 421: link->adapter_buswidth = ec->ec_maxtarget + 1;
! 422: #endif /* __OpenBSD__ */
! 423: link->device = &dpt_dev;
! 424: link->adapter = &sc->sc_adapter;
! 425: link->adapter_softc = sc;
! 426: link->openings = sc->sc_nccbs;
! 427: config_found(&sc->sc_dv, link, scsiprint);
! 428: }
! 429: }
! 430:
! 431: /*
! 432: * Our 'shutdownhook' to cleanly shut down the HBA. The HBA must flush
! 433: * all data from its cache and mark array groups as clean.
! 434: */
! 435: void
! 436: dpt_shutdown(xxx_sc)
! 437: void *xxx_sc;
! 438: {
! 439: struct dpt_softc *sc;
! 440:
! 441: sc = xxx_sc;
! 442: printf("shutting down %s...", sc->sc_dv.dv_xname);
! 443: dpt_cmd(sc, NULL, 0, CP_IMMEDIATE, CPI_POWEROFF_WARN);
! 444: DELAY(5000*1000);
! 445: printf(" done\n");
! 446: }
! 447:
! 448: /*
! 449: * Send an EATA command to the HBA.
! 450: */
! 451: int
! 452: dpt_cmd(sc, cp, addr, eatacmd, icmd)
! 453: struct dpt_softc *sc;
! 454: struct eata_cp *cp;
! 455: u_int32_t addr;
! 456: int eatacmd, icmd;
! 457: {
! 458: int i;
! 459:
! 460: for (i = 20000; i; i--) {
! 461: if ((dpt_inb(sc, HA_AUX_STATUS) & HA_AUX_BUSY) == 0)
! 462: break;
! 463: DELAY(50);
! 464: }
! 465:
! 466: /* Not the most graceful way to handle this */
! 467: if (i == 0) {
! 468: printf("%s: HBA timeout on EATA command issue; aborting\n",
! 469: sc->sc_dv.dv_xname);
! 470: return (-1);
! 471: }
! 472:
! 473: if (cp == NULL)
! 474: addr = 0;
! 475:
! 476: dpt_outb(sc, HA_DMA_BASE + 0, (u_int32_t)addr);
! 477: dpt_outb(sc, HA_DMA_BASE + 1, (u_int32_t)addr >> 8);
! 478: dpt_outb(sc, HA_DMA_BASE + 2, (u_int32_t)addr >> 16);
! 479: dpt_outb(sc, HA_DMA_BASE + 3, (u_int32_t)addr >> 24);
! 480:
! 481: if (eatacmd == CP_IMMEDIATE) {
! 482: if (cp == NULL) {
! 483: /* XXX should really pass meaningful values */
! 484: dpt_outb(sc, HA_ICMD_CODE2, 0);
! 485: dpt_outb(sc, HA_ICMD_CODE1, 0);
! 486: }
! 487: dpt_outb(sc, HA_ICMD, icmd);
! 488: }
! 489:
! 490: dpt_outb(sc, HA_COMMAND, eatacmd);
! 491: return (0);
! 492: }
! 493:
! 494: /*
! 495: * Wait for the HBA to reach an arbitrary state.
! 496: */
! 497: int
! 498: dpt_wait(sc, mask, state, ms)
! 499: struct dpt_softc *sc;
! 500: u_int8_t mask, state;
! 501: int ms;
! 502: {
! 503:
! 504: for (ms *= 10; ms; ms--) {
! 505: if ((dpt_inb(sc, HA_STATUS) & mask) == state)
! 506: return (0);
! 507: DELAY(100);
! 508: }
! 509: return (-1);
! 510: }
! 511:
! 512: /*
! 513: * Wait for the specified CCB to finish. This is used when we may not be
! 514: * able to sleep and/or interrupts are disabled (eg autoconfiguration).
! 515: * The timeout value from the CCB is used. This should only be used for
! 516: * CCB_PRIVATE requests; otherwise the CCB will get recycled before we get
! 517: * a look at it.
! 518: */
! 519: int
! 520: dpt_poll(sc, ccb)
! 521: struct dpt_softc *sc;
! 522: struct dpt_ccb *ccb;
! 523: {
! 524: int i;
! 525:
! 526: #ifdef DEBUG
! 527: if ((ccb->ccb_flg & CCB_PRIVATE) == 0)
! 528: panic("dpt_poll: called for non-CCB_PRIVATE request");
! 529: #endif
! 530:
! 531: if ((ccb->ccb_flg & CCB_INTR) != 0)
! 532: return (0);
! 533:
! 534: for (i = ccb->ccb_timeout * 20; i; i--) {
! 535: if ((dpt_inb(sc, HA_AUX_STATUS) & HA_AUX_INTR) != 0)
! 536: dpt_intr(sc);
! 537: if ((ccb->ccb_flg & CCB_INTR) != 0)
! 538: return (0);
! 539: DELAY(50);
! 540: }
! 541: return (-1);
! 542: }
! 543:
! 544: /*
! 545: * Read the EATA configuration from the HBA and perform some sanity checks.
! 546: */
! 547: int
! 548: dpt_readcfg(sc)
! 549: struct dpt_softc *sc;
! 550: {
! 551: struct eata_cfg *ec;
! 552: int i, j, stat;
! 553: u_int16_t *p;
! 554:
! 555: ec = &sc->sc_ec;
! 556:
! 557: /* Older firmware may puke if we talk to it too soon after reset */
! 558: dpt_outb(sc, HA_COMMAND, CP_RESET);
! 559: DELAY(750000);
! 560:
! 561: for (i = 1000; i; i--) {
! 562: if ((dpt_inb(sc, HA_STATUS) & HA_ST_READY) != 0)
! 563: break;
! 564: DELAY(2000);
! 565: }
! 566:
! 567: if (i == 0) {
! 568: printf("%s: HBA not ready after reset: %02x\n",
! 569: sc->sc_dv.dv_xname, dpt_inb(sc, HA_STATUS));
! 570: return (-1);
! 571: }
! 572:
! 573: while((((stat = dpt_inb(sc, HA_STATUS))
! 574: != (HA_ST_READY|HA_ST_SEEK_COMPLETE))
! 575: && (stat != (HA_ST_READY|HA_ST_SEEK_COMPLETE|HA_ST_ERROR))
! 576: && (stat != (HA_ST_READY|HA_ST_SEEK_COMPLETE|HA_ST_ERROR|HA_ST_DRQ)))
! 577: || (dpt_wait(sc, HA_ST_BUSY, 0, 2000))) {
! 578: /* RAID drives still spinning up? */
! 579: if((dpt_inb(sc, HA_ERROR) != 'D')
! 580: || (dpt_inb(sc, HA_ERROR + 1) != 'P')
! 581: || (dpt_inb(sc, HA_ERROR + 2) != 'T')) {
! 582: printf("%s: HBA not ready\n", sc->sc_dv.dv_xname);
! 583: return (-1);
! 584: }
! 585: }
! 586:
! 587: /*
! 588: * Issue the read-config command and wait for the data to appear.
! 589: * XXX we shouldn't be doing this with PIO, but it makes it a lot
! 590: * easier as no DMA setup is required.
! 591: */
! 592: dpt_outb(sc, HA_COMMAND, CP_PIO_GETCFG);
! 593: memset(ec, 0, sizeof(*ec));
! 594: i = ((int)&((struct eata_cfg *)0)->ec_cfglen +
! 595: sizeof(ec->ec_cfglen)) >> 1;
! 596: p = (u_int16_t *)ec;
! 597:
! 598: if (dpt_wait(sc, 0xFF, HA_ST_DATA_RDY, 2000)) {
! 599: printf("%s: cfg data didn't appear (status:%02x)\n",
! 600: sc->sc_dv.dv_xname, dpt_inb(sc, HA_STATUS));
! 601: return (-1);
! 602: }
! 603:
! 604: /* Begin reading */
! 605: while (i--)
! 606: *p++ = dpt_inw(sc, HA_DATA);
! 607:
! 608: if ((i = ec->ec_cfglen) > (sizeof(struct eata_cfg)
! 609: - (int)(&(((struct eata_cfg *)0L)->ec_cfglen))
! 610: - sizeof(ec->ec_cfglen)))
! 611: i = sizeof(struct eata_cfg)
! 612: - (int)(&(((struct eata_cfg *)0L)->ec_cfglen))
! 613: - sizeof(ec->ec_cfglen);
! 614:
! 615: j = i + (int)(&(((struct eata_cfg *)0L)->ec_cfglen)) +
! 616: sizeof(ec->ec_cfglen);
! 617: i >>= 1;
! 618:
! 619: while (i--)
! 620: *p++ = dpt_inw(sc, HA_DATA);
! 621:
! 622: /* Flush until we have read 512 bytes. */
! 623: i = (512 - j + 1) >> 1;
! 624: while (i--)
! 625: dpt_inw(sc, HA_DATA);
! 626:
! 627: /* Defaults for older Firmware */
! 628: if (p <= (u_short *)&ec->ec_hba[DPT_MAX_CHANNELS - 1])
! 629: ec->ec_hba[DPT_MAX_CHANNELS - 1] = 7;
! 630:
! 631: if ((dpt_inb(sc, HA_STATUS) & HA_ST_ERROR) != 0) {
! 632: printf("%s: HBA error\n", sc->sc_dv.dv_xname);
! 633: return (-1);
! 634: }
! 635:
! 636: if (!ec->ec_hbavalid) {
! 637: printf("%s: ec_hba field invalid\n", sc->sc_dv.dv_xname);
! 638: return (-1);
! 639: }
! 640:
! 641: if (memcmp(ec->ec_eatasig, "EATA", 4) != 0) {
! 642: printf("%s: EATA signature mismatch\n", sc->sc_dv.dv_xname);
! 643: return (-1);
! 644: }
! 645:
! 646: if (!ec->ec_dmasupported) {
! 647: printf("%s: DMA not supported\n", sc->sc_dv.dv_xname);
! 648: return (-1);
! 649: }
! 650:
! 651: return (0);
! 652: }
! 653:
! 654: /*
! 655: * Adjust the size of each I/O before it passes to the SCSI layer.
! 656: */
! 657: void
! 658: dpt_minphys(bp)
! 659: struct buf *bp;
! 660: {
! 661:
! 662: if (bp->b_bcount > DPT_MAX_XFER)
! 663: bp->b_bcount = DPT_MAX_XFER;
! 664: minphys(bp);
! 665: }
! 666:
! 667: /*
! 668: * Put a CCB onto the freelist.
! 669: */
! 670: void
! 671: dpt_free_ccb(sc, ccb)
! 672: struct dpt_softc *sc;
! 673: struct dpt_ccb *ccb;
! 674: {
! 675: int s;
! 676:
! 677: s = splbio();
! 678: ccb->ccb_flg = 0;
! 679: TAILQ_INSERT_HEAD(&sc->sc_free_ccb, ccb, ccb_chain);
! 680:
! 681: /* Wake anybody waiting for a free ccb */
! 682: if (TAILQ_NEXT(ccb, ccb_chain) == NULL)
! 683: wakeup(&sc->sc_free_ccb);
! 684: splx(s);
! 685: }
! 686:
! 687: /*
! 688: * Initialize the specified CCB.
! 689: */
! 690: int
! 691: dpt_init_ccb(sc, ccb)
! 692: struct dpt_softc *sc;
! 693: struct dpt_ccb *ccb;
! 694: {
! 695: int error;
! 696:
! 697: /* Create the DMA map for this CCB's data */
! 698: error = bus_dmamap_create(sc->sc_dmat, DPT_MAX_XFER, DPT_SG_SIZE,
! 699: DPT_MAX_XFER, 0, BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW,
! 700: &ccb->ccb_dmamap_xfer);
! 701:
! 702: if (error) {
! 703: printf("%s: can't create ccb dmamap (%d)\n",
! 704: sc->sc_dv.dv_xname, error);
! 705: return (error);
! 706: }
! 707:
! 708: ccb->ccb_flg = 0;
! 709: ccb->ccb_ccbpa = sc->sc_dmamap_ccb->dm_segs[0].ds_addr +
! 710: CCB_OFF(sc, ccb);
! 711: return (0);
! 712: }
! 713:
! 714: /*
! 715: * Create a set of CCBs and add them to the free list.
! 716: */
! 717: int
! 718: dpt_create_ccbs(sc, ccbstore, count)
! 719: struct dpt_softc *sc;
! 720: struct dpt_ccb *ccbstore;
! 721: int count;
! 722: {
! 723: struct dpt_ccb *ccb;
! 724: int i, error;
! 725:
! 726: memset(ccbstore, 0, sizeof(struct dpt_ccb) * count);
! 727:
! 728: for (i = 0, ccb = ccbstore; i < count; i++, ccb++) {
! 729: if ((error = dpt_init_ccb(sc, ccb)) != 0) {
! 730: printf("%s: unable to init ccb, error = %d\n",
! 731: sc->sc_dv.dv_xname, error);
! 732: break;
! 733: }
! 734: ccb->ccb_id = i;
! 735: TAILQ_INSERT_TAIL(&sc->sc_free_ccb, ccb, ccb_chain);
! 736: }
! 737:
! 738: return (i);
! 739: }
! 740:
! 741: /*
! 742: * Get a free ccb. If there are none, see if we can allocate a new one. If
! 743: * none are available right now and we are permitted to sleep, then wait
! 744: * until one becomes free, otherwise return an error.
! 745: */
! 746: struct dpt_ccb *
! 747: dpt_alloc_ccb(sc, flg)
! 748: struct dpt_softc *sc;
! 749: int flg;
! 750: {
! 751: struct dpt_ccb *ccb;
! 752: int s;
! 753:
! 754: s = splbio();
! 755:
! 756: for (;;) {
! 757: ccb = TAILQ_FIRST(&sc->sc_free_ccb);
! 758: if (ccb) {
! 759: TAILQ_REMOVE(&sc->sc_free_ccb, ccb, ccb_chain);
! 760: break;
! 761: }
! 762: #ifdef __NetBSD__
! 763: if ((flg & XS_CTL_NOSLEEP) != 0) {
! 764: #endif /* __NetBSD__ */
! 765: #ifdef __OpenBSD__
! 766: if ((flg & SCSI_NOSLEEP) != 0) {
! 767: #endif /* __OpenBSD__ */
! 768: splx(s);
! 769: return (NULL);
! 770: }
! 771: tsleep(&sc->sc_free_ccb, PRIBIO, "dptccb", 0);
! 772: }
! 773:
! 774: ccb->ccb_flg |= CCB_ALLOC;
! 775: splx(s);
! 776: return (ccb);
! 777: }
! 778:
! 779: /*
! 780: * We have a CCB which has been processed by the HBA, now we look to see how
! 781: * the operation went. CCBs marked with CCB_PRIVATE are not automatically
! 782: * passed here by dpt_intr().
! 783: */
! 784: void
! 785: dpt_done_ccb(sc, ccb)
! 786: struct dpt_softc *sc;
! 787: struct dpt_ccb *ccb;
! 788: {
! 789: #ifdef __NetBSD__
! 790: struct scsipi_sense_data *s1, *s2;
! 791: struct scsipi_xfer *xs;
! 792: #endif /* __NetBSD__ */
! 793: #ifdef __OpenBSD__
! 794: struct scsi_sense_data *s1, *s2;
! 795: struct scsi_xfer *xs;
! 796: #endif /* __OpenBSD__ */
! 797: bus_dma_tag_t dmat;
! 798:
! 799: dmat = sc->sc_dmat;
! 800: xs = ccb->ccb_xs;
! 801:
! 802: SC_DEBUG(xs->sc_link, SDEV_DB2, ("dpt_done_ccb\n"));
! 803:
! 804: /*
! 805: * If we were a data transfer, unload the map that described the
! 806: * data buffer.
! 807: */
! 808: if (xs->datalen) {
! 809: bus_dmamap_sync(dmat, ccb->ccb_dmamap_xfer, 0,
! 810: ccb->ccb_dmamap_xfer->dm_mapsize,
! 811: (xs->flags & SCSI_DATA_IN) ? BUS_DMASYNC_POSTREAD :
! 812: BUS_DMASYNC_POSTWRITE);
! 813: bus_dmamap_unload(dmat, ccb->ccb_dmamap_xfer);
! 814: }
! 815:
! 816: /*
! 817: * Otherwise, put the results of the operation into the xfer and
! 818: * call whoever started it.
! 819: */
! 820: #ifdef DIAGNOSTIC
! 821: if ((ccb->ccb_flg & CCB_ALLOC) == 0) {
! 822: panic("%s: done ccb not allocated!", sc->sc_dv.dv_xname);
! 823: return;
! 824: }
! 825: #endif
! 826:
! 827: if (xs->error == XS_NOERROR) {
! 828: if (ccb->ccb_hba_status != HA_NO_ERROR) {
! 829: switch (ccb->ccb_hba_status) {
! 830: case HA_ERROR_SEL_TO:
! 831: xs->error = XS_SELTIMEOUT;
! 832: break;
! 833: case HA_ERROR_RESET:
! 834: xs->error = XS_RESET;
! 835: break;
! 836: default: /* Other scsi protocol messes */
! 837: printf("%s: HBA status %x\n",
! 838: sc->sc_dv.dv_xname, ccb->ccb_hba_status);
! 839: xs->error = XS_DRIVER_STUFFUP;
! 840: }
! 841: } else if (ccb->ccb_scsi_status != SCSI_OK) {
! 842: switch (ccb->ccb_scsi_status) {
! 843: case SCSI_CHECK:
! 844: s1 = &ccb->ccb_sense;
! 845: #ifdef __NetBSD__
! 846: s2 = &xs->sense.scsi_sense;
! 847: #endif /* __NetBSD__ */
! 848: #ifdef __OpenBSD__
! 849: s2 = &xs->sense;
! 850: #endif /* __OpenBSD__ */
! 851: *s2 = *s1;
! 852: xs->error = XS_SENSE;
! 853: break;
! 854: case SCSI_BUSY:
! 855: xs->error = XS_BUSY;
! 856: break;
! 857: default:
! 858: printf("%s: SCSI status %x\n",
! 859: sc->sc_dv.dv_xname, ccb->ccb_scsi_status);
! 860: xs->error = XS_DRIVER_STUFFUP;
! 861: }
! 862: } else
! 863: xs->resid = 0;
! 864:
! 865: xs->status = ccb->ccb_scsi_status;
! 866: }
! 867:
! 868: /* Free up the CCB and mark the command as done */
! 869: dpt_free_ccb(sc, ccb);
! 870: #ifdef __NetBSD__
! 871: xs->xs_status |= XS_STS_DONE;
! 872: scsipi_done(xs);
! 873: #endif /* __NetBSD__ */
! 874: #ifdef __OpenBSD__
! 875: xs->flags |= ITSDONE;
! 876: scsi_done(xs);
! 877: #endif /* __OpenBSD__ */
! 878:
! 879: /*
! 880: * If there are entries in the software queue, try to run the first
! 881: * one. We should be more or less guaranteed to succeed, since we
! 882: * just freed an CCB. NOTE: dpt_scsi_cmd() relies on our calling it
! 883: * with the first entry in the queue.
! 884: */
! 885: #ifdef __NetBSD__
! 886: if ((xs = TAILQ_FIRST(&sc->sc_queue)) != NULL)
! 887: #endif /* __NetBSD__ */
! 888: #ifdef __OpenBSD__
! 889: if ((xs = LIST_FIRST(&sc->sc_queue)) != NULL)
! 890: #endif /* __OpenBSD__ */
! 891: dpt_scsi_cmd(xs);
! 892: }
! 893:
! 894: #ifdef __OpenBSD__
! 895: /*
! 896: * Insert a scsi_xfer into the software queue. We overload xs->free_list
! 897: * to avoid having to allocate additional resources (since we're used
! 898: * only during resource shortages anyhow.
! 899: */
! 900: static void
! 901: dpt_enqueue(sc, xs, infront)
! 902: struct dpt_softc *sc;
! 903: struct scsi_xfer *xs;
! 904: int infront;
! 905: {
! 906:
! 907: if (infront || LIST_EMPTY(&sc->sc_queue)) {
! 908: if (LIST_EMPTY(&sc->sc_queue))
! 909: sc->sc_queuelast = xs;
! 910: LIST_INSERT_HEAD(&sc->sc_queue, xs, free_list);
! 911: return;
! 912: }
! 913: LIST_INSERT_AFTER(sc->sc_queuelast, xs, free_list);
! 914: sc->sc_queuelast = xs;
! 915: }
! 916:
! 917: /*
! 918: * Pull a scsi_xfer off the front of the software queue.
! 919: */
! 920: static struct scsi_xfer *
! 921: dpt_dequeue(sc)
! 922: struct dpt_softc *sc;
! 923: {
! 924: struct scsi_xfer *xs;
! 925:
! 926: xs = LIST_FIRST(&sc->sc_queue);
! 927: LIST_REMOVE(xs, free_list);
! 928:
! 929: if (LIST_EMPTY(&sc->sc_queue))
! 930: sc->sc_queuelast = NULL;
! 931:
! 932: return (xs);
! 933: }
! 934: #endif /* __OpenBSD__ */
! 935:
! 936: /*
! 937: * Start a SCSI command.
! 938: */
! 939: int
! 940: dpt_scsi_cmd(xs)
! 941: #ifdef __NetBSD__
! 942: struct scsipi_xfer *xs;
! 943: #endif /* __NetBSD__ */
! 944: #ifdef __OpenBSD__
! 945: struct scsi_xfer *xs;
! 946: #endif /* __OpenBSD__ */
! 947: {
! 948: int error, i, flags, s, fromqueue, dontqueue;
! 949: #ifdef __NetBSD__
! 950: struct scsipi_link *sc_link;
! 951: #endif /* __NetBSD__ */
! 952: #ifdef __OpenBSD__
! 953: struct scsi_link *sc_link;
! 954: #endif /* __OpenBSD__ */
! 955: struct dpt_softc *sc;
! 956: struct dpt_ccb *ccb;
! 957: struct eata_sg *sg;
! 958: struct eata_cp *cp;
! 959: bus_dma_tag_t dmat;
! 960: bus_dmamap_t xfer;
! 961:
! 962: sc_link = xs->sc_link;
! 963: #ifdef __NetBSD__
! 964: flags = xs->xs_control;
! 965: #endif /* __NetBSD__ */
! 966: #ifdef __OpenBSD__
! 967: flags = xs->flags;
! 968: #endif /* __OpenBSD__ */
! 969: sc = sc_link->adapter_softc;
! 970: dmat = sc->sc_dmat;
! 971: fromqueue = 0;
! 972: dontqueue = 0;
! 973:
! 974: SC_DEBUG(sc_link, SDEV_DB2, ("dpt_scsi_cmd\n"));
! 975:
! 976: /* Protect the queue */
! 977: s = splbio();
! 978:
! 979: /*
! 980: * If we're running the queue from dpt_done_ccb(), we've been called
! 981: * with the first queue entry as our argument.
! 982: */
! 983: #ifdef __NetBSD__
! 984: if (xs == TAILQ_FIRST(&sc->sc_queue)) {
! 985: TAILQ_REMOVE(&sc->sc_queue, xs, adapter_q);
! 986: #endif /* __NetBSD__ */
! 987: #ifdef __OpenBSD__
! 988: if (xs == LIST_FIRST(&sc->sc_queue)) {
! 989: xs = dpt_dequeue(sc);
! 990: #endif /* __OpenBSD__ */
! 991: fromqueue = 1;
! 992: } else {
! 993: /* Cmds must be no more than 12 bytes for us */
! 994: if (xs->cmdlen > 12) {
! 995: splx(s);
! 996: xs->error = XS_DRIVER_STUFFUP;
! 997: return (COMPLETE);
! 998: }
! 999:
! 1000: /* XXX we can't reset devices just yet */
! 1001: #ifdef __NetBSD__
! 1002: if ((flags & XS_CTL_RESET) != 0) {
! 1003: #endif /* __NetBSD__ */
! 1004: #ifdef __OpenBSD__
! 1005: if ((xs->flags & SCSI_RESET) != 0) {
! 1006: #endif /* __OpenBSD__ */
! 1007: splx(s);
! 1008: xs->error = XS_DRIVER_STUFFUP;
! 1009: return (COMPLETE);
! 1010: }
! 1011:
! 1012: /* Polled requests can't be queued for later */
! 1013: #ifdef __NetBSD__
! 1014: dontqueue = flags & XS_CTL_POLL;
! 1015: #endif /* __NetBSD__ */
! 1016: #ifdef __OpenBSD__
! 1017: dontqueue = xs->flags & SCSI_POLL;
! 1018: #endif /* __OpenBSD__ */
! 1019:
! 1020: /* If there are jobs in the queue, run them first */
! 1021: #ifdef __NetBSD__
! 1022: if (TAILQ_FIRST(&sc->sc_queue) != NULL) {
! 1023: #endif /* __NetBSD__ */
! 1024: #ifdef __OpenBSD__
! 1025: if (!LIST_EMPTY(&sc->sc_queue)) {
! 1026: #endif /* __OpenBSD__ */
! 1027: /*
! 1028: * If we can't queue we abort, since we must
! 1029: * preserve the queue order.
! 1030: */
! 1031: if (dontqueue) {
! 1032: splx(s);
! 1033: return (TRY_AGAIN_LATER);
! 1034: }
! 1035:
! 1036: /* Swap with the first queue entry. */
! 1037: #ifdef __NetBSD__
! 1038: TAILQ_INSERT_TAIL(&sc->sc_queue, xs, adapter_q);
! 1039: xs = TAILQ_FIRST(&sc->sc_queue);
! 1040: TAILQ_REMOVE(&sc->sc_queue, xs, adapter_q);
! 1041: #endif /* __NetBSD__ */
! 1042: #ifdef __OpenBSD__
! 1043: dpt_enqueue(sc, xs, 0);
! 1044: xs = dpt_dequeue(sc);
! 1045: #endif /* __OpenBSD__ */
! 1046: fromqueue = 1;
! 1047: }
! 1048: }
! 1049:
! 1050: /* Get a CCB */
! 1051: #ifdef __NetBSD__
! 1052: if ((ccb = dpt_alloc_ccb(sc, flags)) == NULL) {
! 1053: #endif /* __NetBSD__ */
! 1054: #ifdef __OpenBSD__
! 1055: if ((ccb = dpt_alloc_ccb(sc, xs->flags)) == NULL) {
! 1056: #endif /* __OpenBSD__ */
! 1057: /* If we can't queue, we lose */
! 1058: if (dontqueue) {
! 1059: splx(s);
! 1060: return (TRY_AGAIN_LATER);
! 1061: }
! 1062:
! 1063: /*
! 1064: * Stuff request into the queue, in front if we came off
! 1065: * it in the first place.
! 1066: */
! 1067: #ifdef __NetBSD__
! 1068: if (fromqueue)
! 1069: TAILQ_INSERT_HEAD(&sc->sc_queue, xs, adapter_q);
! 1070: else
! 1071: TAILQ_INSERT_TAIL(&sc->sc_queue, xs, adapter_q);
! 1072: #endif /* __NetBSD__ */
! 1073: #ifdef __OpenBSD__
! 1074: dpt_enqueue(sc, xs, fromqueue);
! 1075: #endif /* __OpenBSD__ */
! 1076: splx(s);
! 1077: return (SUCCESSFULLY_QUEUED);
! 1078: }
! 1079:
! 1080: splx(s);
! 1081:
! 1082: ccb->ccb_xs = xs;
! 1083: ccb->ccb_timeout = xs->timeout;
! 1084:
! 1085: cp = &ccb->ccb_eata_cp;
! 1086: #ifdef __NetBSD__
! 1087: memcpy(&cp->cp_scsi_cmd, xs->cmd, xs->cmdlen);
! 1088: #endif /* __NetBSD__ */
! 1089: #ifdef __OpenBSD__
! 1090: bcopy(xs->cmd, &cp->cp_scsi_cmd, xs->cmdlen);
! 1091: #endif /* __OpenBSD__ */
! 1092: cp->cp_ccbid = ccb->ccb_id;
! 1093: #ifdef __NetBSD__
! 1094: cp->cp_id = sc_link->scsipi_scsi.target;
! 1095: cp->cp_lun = sc_link->scsipi_scsi.lun;
! 1096: cp->cp_channel = sc_link->scsipi_scsi.channel;
! 1097: #endif /* __NetBSD__ */
! 1098: #ifdef __OpenBSD__
! 1099: cp->cp_id = sc_link->target;
! 1100: cp->cp_lun = sc_link->lun;
! 1101: cp->cp_channel = sc_link->scsibus;
! 1102: #endif /* __OpenBSD__ */
! 1103: cp->cp_senselen = sizeof(ccb->ccb_sense);
! 1104: cp->cp_stataddr = htobe32(sc->sc_sppa);
! 1105: cp->cp_dispri = 1;
! 1106: cp->cp_identify = 1;
! 1107: cp->cp_autosense = 1;
! 1108: #ifdef __NetBSD__
! 1109: cp->cp_datain = ((flags & XS_CTL_DATA_IN) != 0);
! 1110: cp->cp_dataout = ((flags & XS_CTL_DATA_OUT) != 0);
! 1111: cp->cp_interpret = (sc->sc_hbaid[sc_link->scsipi_scsi.channel] ==
! 1112: sc_link->scsipi_scsi.target);
! 1113: #endif /* __NetBSD__ */
! 1114: #ifdef __OpenBSD__
! 1115: cp->cp_datain = ((xs->flags & SCSI_DATA_IN) != 0);
! 1116: cp->cp_dataout = ((xs->flags & SCSI_DATA_OUT) != 0);
! 1117: cp->cp_interpret = (sc->sc_hbaid[sc_link->scsibus] == sc_link->target);
! 1118: #endif /* __OpenBSD__ */
! 1119:
! 1120: /* Synchronous xfers musn't write-back through the cache */
! 1121: if (xs->bp != NULL && (xs->bp->b_flags & (B_ASYNC | B_READ)) == 0)
! 1122: cp->cp_nocache = 1;
! 1123: else
! 1124: cp->cp_nocache = 0;
! 1125:
! 1126: cp->cp_senseaddr = htobe32(sc->sc_dmamap_ccb->dm_segs[0].ds_addr +
! 1127: CCB_OFF(sc, ccb) + offsetof(struct dpt_ccb, ccb_sense));
! 1128:
! 1129: if (xs->datalen) {
! 1130: xfer = ccb->ccb_dmamap_xfer;
! 1131: #ifdef TFS
! 1132: #ifdef __NetBSD__
! 1133: if ((flags & XS_CTL_DATA_UIO) != 0) {
! 1134: error = bus_dmamap_load_uio(dmat, xfer,
! 1135: (struct uio *)xs->data, (flags & XS_CTL_NOSLEEP) ?
! 1136: BUS_DMA_NOWAIT : BUS_DMA_WAITOK);
! 1137: #endif /* __NetBSD__ */
! 1138: #ifdef __OpenBSD__
! 1139: if ((xs->flags & SCSI_DATA_UIO) != 0) {
! 1140: error = bus_dmamap_load_uio(dmat, xfer,
! 1141: (xs->flags & SCSI_NOSLEEP) ?
! 1142: BUS_DMA_NOWAIT : BUS_DMA_WAITOK);
! 1143: #endif /* __OpenBSD__ */
! 1144: } else
! 1145: #endif /*TFS */
! 1146: {
! 1147: #ifdef __NetBSD__
! 1148: error = bus_dmamap_load(dmat, xfer, xs->data,
! 1149: xs->datalen, NULL, (flags & XS_CTL_NOSLEEP) ?
! 1150: BUS_DMA_NOWAIT : BUS_DMA_WAITOK);
! 1151: #endif /* __NetBSD__ */
! 1152: #ifdef __OpenBSD__
! 1153: error = bus_dmamap_load(dmat, xfer, xs->data,
! 1154: xs->datalen, NULL, (xs->flags & SCSI_NOSLEEP) ?
! 1155: BUS_DMA_NOWAIT : BUS_DMA_WAITOK);
! 1156: #endif /* __OpenBSD__ */
! 1157: }
! 1158:
! 1159: if (error) {
! 1160: printf("%s: dpt_scsi_cmd: ", sc->sc_dv.dv_xname);
! 1161: if (error == EFBIG)
! 1162: printf("more than %d dma segs\n", DPT_SG_SIZE);
! 1163: else
! 1164: printf("error %d loading dma map\n", error);
! 1165:
! 1166: xs->error = XS_DRIVER_STUFFUP;
! 1167: dpt_free_ccb(sc, ccb);
! 1168: return (COMPLETE);
! 1169: }
! 1170:
! 1171: bus_dmamap_sync(dmat, xfer, 0, xfer->dm_mapsize,
! 1172: (flags & SCSI_DATA_IN) ? BUS_DMASYNC_PREREAD :
! 1173: BUS_DMASYNC_PREWRITE);
! 1174:
! 1175: /* Don't bother using scatter/gather for just 1 segment */
! 1176: if (xfer->dm_nsegs == 1) {
! 1177: cp->cp_dataaddr = htobe32(xfer->dm_segs[0].ds_addr);
! 1178: cp->cp_datalen = htobe32(xfer->dm_segs[0].ds_len);
! 1179: cp->cp_scatter = 0;
! 1180: } else {
! 1181: /*
! 1182: * Load the hardware scatter/gather map with the
! 1183: * contents of the DMA map.
! 1184: */
! 1185: sg = ccb->ccb_sg;
! 1186: for (i = 0; i < xfer->dm_nsegs; i++, sg++) {
! 1187: sg->sg_addr =
! 1188: htobe32(xfer->dm_segs[i].ds_addr);
! 1189: sg->sg_len =
! 1190: htobe32(xfer->dm_segs[i].ds_len);
! 1191: }
! 1192: cp->cp_dataaddr = htobe32(CCB_OFF(sc, ccb) +
! 1193: sc->sc_dmamap_ccb->dm_segs[0].ds_addr +
! 1194: offsetof(struct dpt_ccb, ccb_sg));
! 1195: cp->cp_datalen = htobe32(i * sizeof(struct eata_sg));
! 1196: cp->cp_scatter = 1;
! 1197: }
! 1198: } else {
! 1199: cp->cp_dataaddr = 0;
! 1200: cp->cp_datalen = 0;
! 1201: cp->cp_scatter = 0;
! 1202: }
! 1203:
! 1204: /* Sync up CCB and status packet */
! 1205: bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap_ccb, CCB_OFF(sc, ccb),
! 1206: sizeof(struct dpt_ccb), BUS_DMASYNC_PREWRITE);
! 1207: bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap_ccb, sc->sc_spoff,
! 1208: sizeof(struct eata_sp), BUS_DMASYNC_PREREAD);
! 1209:
! 1210: /*
! 1211: * Start the command. If we are polling on completion, mark it
! 1212: * private so that dpt_intr/dpt_done_ccb don't recycle the CCB
! 1213: * without us noticing.
! 1214: */
! 1215: if (dontqueue != 0)
! 1216: ccb->ccb_flg |= CCB_PRIVATE;
! 1217:
! 1218: if (dpt_cmd(sc, &ccb->ccb_eata_cp, ccb->ccb_ccbpa, CP_DMA_CMD, 0)) {
! 1219: printf("%s: dpt_cmd failed\n", sc->sc_dv.dv_xname);
! 1220: dpt_free_ccb(sc, ccb);
! 1221: return (TRY_AGAIN_LATER);
! 1222: }
! 1223:
! 1224: if (dontqueue == 0)
! 1225: return (SUCCESSFULLY_QUEUED);
! 1226:
! 1227: /* Don't wait longer than this single command wants to wait */
! 1228: if (dpt_poll(sc, ccb)) {
! 1229: dpt_timeout(ccb);
! 1230: /* Wait for abort to complete */
! 1231: if (dpt_poll(sc, ccb))
! 1232: dpt_timeout(ccb);
! 1233: }
! 1234:
! 1235: dpt_done_ccb(sc, ccb);
! 1236: return (COMPLETE);
! 1237: }
! 1238:
! 1239: /*
! 1240: * Specified CCB has timed out, abort it.
! 1241: */
! 1242: void
! 1243: dpt_timeout(arg)
! 1244: void *arg;
! 1245: {
! 1246: #ifdef __NetBSD__
! 1247: struct scsipi_link *sc_link;
! 1248: struct scsipi_xfer *xs;
! 1249: #endif /* __NetBSD__ */
! 1250: #ifdef __OpenBSD__
! 1251: struct scsi_link *sc_link;
! 1252: struct scsi_xfer *xs;
! 1253: #endif /* __OpenBSD__ */
! 1254: struct dpt_softc *sc;
! 1255: struct dpt_ccb *ccb;
! 1256: int s;
! 1257:
! 1258: ccb = arg;
! 1259: xs = ccb->ccb_xs;
! 1260: sc_link = xs->sc_link;
! 1261: sc = sc_link->adapter_softc;
! 1262:
! 1263: #ifdef __NetBSD__
! 1264: scsi_print_addr(sc_link);
! 1265: #endif /* __NetBSD__ */
! 1266: #ifdef __OpenBSD__
! 1267: sc_print_addr(sc_link);
! 1268: #endif /* __OpenBSD__ */
! 1269: printf("timed out (status:%02x aux status:%02x)",
! 1270: dpt_inb(sc, HA_STATUS), dpt_inb(sc, HA_AUX_STATUS));
! 1271:
! 1272: s = splbio();
! 1273:
! 1274: if ((ccb->ccb_flg & CCB_ABORT) != 0) {
! 1275: /* Abort timed out, reset the HBA */
! 1276: printf(" AGAIN, resetting HBA\n");
! 1277: dpt_outb(sc, HA_COMMAND, CP_RESET);
! 1278: DELAY(750000);
! 1279: } else {
! 1280: /* Abort the operation that has timed out */
! 1281: printf("\n");
! 1282: ccb->ccb_xs->error = XS_TIMEOUT;
! 1283: ccb->ccb_timeout = DPT_ABORT_TIMEOUT;
! 1284: ccb->ccb_flg |= CCB_ABORT;
! 1285: /* Start the abort */
! 1286: if (dpt_cmd(sc, &ccb->ccb_eata_cp, ccb->ccb_ccbpa,
! 1287: CP_IMMEDIATE, CPI_SPEC_ABORT))
! 1288: printf("%s: dpt_cmd failed\n", sc->sc_dv.dv_xname);
! 1289: }
! 1290:
! 1291: splx(s);
! 1292: }
! 1293:
! 1294: #ifdef DEBUG
! 1295: /*
! 1296: * Dump the contents of an EATA status packet.
! 1297: */
! 1298: void
! 1299: dpt_dump_sp(sp)
! 1300: struct eata_sp *sp;
! 1301: {
! 1302: int i;
! 1303:
! 1304: printf("\thba_status\t%02x\n", sp->sp_hba_status);
! 1305: printf("\tscsi_status\t%02x\n", sp->sp_scsi_status);
! 1306: printf("\tinv_residue\t%d\n", sp->sp_inv_residue);
! 1307: printf("\tccbid\t\t%d\n", sp->sp_ccbid);
! 1308: printf("\tid_message\t%d\n", sp->sp_id_message);
! 1309: printf("\tque_message\t%d\n", sp->sp_que_message);
! 1310: printf("\ttag_message\t%d\n", sp->sp_tag_message);
! 1311: printf("\tmessages\t");
! 1312:
! 1313: for (i = 0; i < 9; i++)
! 1314: printf("%d ", sp->sp_messages[i]);
! 1315:
! 1316: printf("\n");
! 1317: }
! 1318: #endif /* DEBUG */
! 1319:
! 1320: /*
! 1321: * Get inquiry data from the adapter.
! 1322: */
! 1323: void
! 1324: dpt_hba_inquire(sc, ei)
! 1325: struct dpt_softc *sc;
! 1326: struct eata_inquiry_data **ei;
! 1327: {
! 1328: struct dpt_ccb *ccb;
! 1329: struct eata_cp *cp;
! 1330: bus_dma_tag_t dmat;
! 1331:
! 1332: *ei = (struct eata_inquiry_data *)sc->sc_scr;
! 1333: dmat = sc->sc_dmat;
! 1334:
! 1335: /* Get a CCB and mark as private */
! 1336: if ((ccb = dpt_alloc_ccb(sc, 0)) == NULL)
! 1337: panic("%s: no CCB for inquiry", sc->sc_dv.dv_xname);
! 1338:
! 1339: ccb->ccb_flg |= CCB_PRIVATE;
! 1340: ccb->ccb_timeout = 200;
! 1341:
! 1342: /* Put all the arguments into the CCB */
! 1343: cp = &ccb->ccb_eata_cp;
! 1344: cp->cp_ccbid = ccb->ccb_id;
! 1345: cp->cp_id = sc->sc_hbaid[0];
! 1346: cp->cp_lun = 0;
! 1347: cp->cp_channel = 0;
! 1348: cp->cp_senselen = sizeof(ccb->ccb_sense);
! 1349: cp->cp_stataddr = htobe32(sc->sc_sppa);
! 1350: cp->cp_dispri = 1;
! 1351: cp->cp_identify = 1;
! 1352: cp->cp_autosense = 0;
! 1353: cp->cp_interpret = 1;
! 1354: cp->cp_nocache = 0;
! 1355: cp->cp_datain = 1;
! 1356: cp->cp_dataout = 0;
! 1357: cp->cp_senseaddr = 0;
! 1358: cp->cp_dataaddr = htobe32(sc->sc_scrpa);
! 1359: cp->cp_datalen = htobe32(sizeof(struct eata_inquiry_data));
! 1360: cp->cp_scatter = 0;
! 1361:
! 1362: /* Put together the SCSI inquiry command */
! 1363: memset(&cp->cp_scsi_cmd, 0, 12); /* XXX */
! 1364: cp->cp_scsi_cmd = INQUIRY;
! 1365: cp->cp_len = sizeof(struct eata_inquiry_data);
! 1366:
! 1367: /* Sync up CCB, status packet and scratch area */
! 1368: bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap_ccb, CCB_OFF(sc, ccb),
! 1369: sizeof(struct dpt_ccb), BUS_DMASYNC_PREWRITE);
! 1370: bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap_ccb, sc->sc_spoff,
! 1371: sizeof(struct eata_sp), BUS_DMASYNC_PREREAD);
! 1372: bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap_ccb, sc->sc_scroff,
! 1373: sizeof(struct eata_inquiry_data), BUS_DMASYNC_PREREAD);
! 1374:
! 1375: /* Start the command and poll on completion */
! 1376: if (dpt_cmd(sc, &ccb->ccb_eata_cp, ccb->ccb_ccbpa, CP_DMA_CMD, 0))
! 1377: panic("%s: dpt_cmd failed", sc->sc_dv.dv_xname);
! 1378:
! 1379: if (dpt_poll(sc, ccb))
! 1380: panic("%s: inquiry timed out", sc->sc_dv.dv_xname);
! 1381:
! 1382: if (ccb->ccb_hba_status != HA_NO_ERROR ||
! 1383: ccb->ccb_scsi_status != SCSI_OK)
! 1384: panic("%s: inquiry failed (hba:%02x scsi:%02x",
! 1385: sc->sc_dv.dv_xname, ccb->ccb_hba_status,
! 1386: ccb->ccb_scsi_status);
! 1387:
! 1388: /* Sync up the DMA map and free CCB, returning */
! 1389: bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap_ccb, sc->sc_scroff,
! 1390: sizeof(struct eata_inquiry_data), BUS_DMASYNC_POSTREAD);
! 1391: dpt_free_ccb(sc, ccb);
! 1392: }
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