Annotation of sys/dev/ic/dpt.c, Revision 1.1.1.1
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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