Annotation of sys/arch/sparc/dev/isp_sbus.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: isp_sbus.c,v 1.24 2004/09/29 07:35:11 miod Exp $ */
2: /*
3: * SBus specific probe and attach routines for Qlogic ISP SCSI adapters.
4: *
5: * Copyright (c) 1997, 2000 by Matthew Jacob
6: * All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice immediately at the beginning of the file, without modification,
13: * this list of conditions, and the following disclaimer.
14: * documentation and/or other materials provided with the distribution.
15: * 2. The name of the author may not be used to endorse or promote products
16: * derived from this software without specific prior written permission.
17: *
18: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
22: * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28: * SUCH DAMAGE.
29: *
30: */
31:
32: #include <sys/param.h>
33: #include <sys/systm.h>
34: #include <sys/device.h>
35: #include <sys/kernel.h>
36: #include <sys/malloc.h>
37: #include <sys/queue.h>
38:
39: #include <machine/autoconf.h>
40: #include <machine/cpu.h>
41: #include <machine/param.h>
42: #include <machine/vmparam.h>
43: #include <sparc/sparc/cpuvar.h>
44:
45: #include <dev/ic/isp_openbsd.h>
46: #if defined(ISP_COMPILE_FW) || defined(ISP_COMPILE_1000_FW)
47: #include <dev/microcode/isp/asm_sbus.h>
48: #endif
49:
50: #define ISP_SBUSIFY_ISPHDR(isp, hdrp) \
51: ISP_SWAP8((hdrp)->rqs_entry_count, (hdrp)->rqs_entry_type); \
52: ISP_SWAP8((hdrp)->rqs_flags, (hdrp)->rqs_seqno);
53:
54: #define ISP_SWIZZLE_REQUEST(a, b) \
55: ISP_SBUSIFY_ISPHDR(a, &(b)->req_header); \
56: ISP_SWAP8((b)->req_target, (b)->req_lun_trn)
57:
58:
59: static int
60: isp_sbus_rd_isr(struct ispsoftc *, u_int16_t *, u_int16_t *, u_int16_t *);
61: static u_int16_t isp_sbus_rd_reg(struct ispsoftc *, int);
62: static void isp_sbus_wr_reg(struct ispsoftc *, int, u_int16_t);
63: static int isp_sbus_mbxdma(struct ispsoftc *);
64: static int isp_sbus_dmasetup(struct ispsoftc *, struct scsi_xfer *,
65: ispreq_t *, u_int16_t *, u_int16_t);
66: static void
67: isp_sbus_dmateardown(struct ispsoftc *, struct scsi_xfer *, u_int16_t);
68: static int isp_sbus_intr(void *);
69:
70: #ifndef ISP_1000_RISC_CODE
71: #define ISP_1000_RISC_CODE NULL
72: #endif
73:
74: static struct ispmdvec mdvec = {
75: isp_sbus_rd_isr,
76: isp_sbus_rd_reg,
77: isp_sbus_wr_reg,
78: isp_sbus_mbxdma,
79: isp_sbus_dmasetup,
80: isp_sbus_dmateardown,
81: NULL,
82: NULL,
83: NULL,
84: (u_int16_t *) ISP_1000_RISC_CODE,
85: BIU_BURST_ENABLE|BIU_SBUS_CONF1_FIFO_32
86: };
87:
88: struct isp_sbussoftc {
89: struct ispsoftc sbus_isp;
90: sdparam sbus_dev;
91: struct intrhand sbus_ih;
92: volatile u_int16_t *sbus_reg;
93: int sbus_node;
94: int sbus_pri;
95: struct ispmdvec sbus_mdvec;
96: int16_t sbus_poff[_NREG_BLKS];
97: vaddr_t *sbus_kdma_allocs;
98: };
99:
100:
101: static int isp_match(struct device *, void *, void *);
102: static void isp_sbus_attach(struct device *, struct device *, void *);
103: struct cfattach isp_sbus_ca = {
104: sizeof (struct isp_sbussoftc), isp_match, isp_sbus_attach
105: };
106:
107: static int
108: isp_match(struct device *parent, void *cfarg, void *aux)
109: {
110: int rv;
111: struct cfdata *cf = cfarg;
112: #ifdef DEBUG
113: static int oneshot = 1;
114: #endif
115: struct confargs *ca = aux;
116: struct romaux *ra = &ca->ca_ra;
117:
118: rv = (strcmp(cf->cf_driver->cd_name, ra->ra_name) == 0 ||
119: strcmp("PTI,ptisp", ra->ra_name) == 0 ||
120: strcmp("ptisp", ra->ra_name) == 0 ||
121: strcmp("SUNW,isp", ra->ra_name) == 0 ||
122: strcmp("QLGC,isp", ra->ra_name) == 0);
123: if (rv == 0)
124: return (rv);
125: #ifdef DEBUG
126: if (rv && oneshot) {
127: oneshot = 0;
128: printf("Qlogic ISP Driver, OpenBSD (sbus) Platform Version "
129: "%d.%d Core Version %d.%d\n",
130: ISP_PLATFORM_VERSION_MAJOR, ISP_PLATFORM_VERSION_MINOR,
131: ISP_CORE_VERSION_MAJOR, ISP_CORE_VERSION_MINOR);
132: }
133: #endif
134: if (ca->ca_bustype == BUS_SBUS)
135: return (1);
136: ra->ra_len = NBPG;
137: return (probeget(ra->ra_vaddr, 1) != -1);
138: }
139:
140: static void
141: isp_sbus_attach(struct device *parent, struct device *self, void *aux)
142: {
143: int freq, storebp = 0;
144: struct confargs *ca = aux;
145: struct bootpath *bp;
146: struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) self;
147: struct ispsoftc *isp = &sbc->sbus_isp;
148:
149: if (ca->ca_ra.ra_nintr != 1) {
150: printf(": expected 1 interrupt, got %d\n", ca->ca_ra.ra_nintr);
151: return;
152: }
153:
154: printf("\n");
155:
156: sbc->sbus_pri = ca->ca_ra.ra_intr[0].int_pri;
157: sbc->sbus_mdvec = mdvec;
158:
159: if (ca->ca_ra.ra_vaddr) {
160: sbc->sbus_reg = (volatile u_int16_t *) ca->ca_ra.ra_vaddr;
161: } else {
162: sbc->sbus_reg = (volatile u_int16_t *)
163: mapiodev(ca->ca_ra.ra_reg, 0, ca->ca_ra.ra_len);
164: }
165: sbc->sbus_node = ca->ca_ra.ra_node;
166:
167: freq = getpropint(ca->ca_ra.ra_node, "clock-frequency", 0);
168: if (freq) {
169: /*
170: * Convert from HZ to MHz, rounding up.
171: */
172: freq = (freq + 500000)/1000000;
173: #if 0
174: printf("%s: %d MHz\n", self->dv_xname, freq);
175: #endif
176: }
177: sbc->sbus_mdvec.dv_clock = freq;
178:
179: if ((bp = ca->ca_ra.ra_bp) != NULL) {
180: if (bp->val[0] == ca->ca_slot &&
181: bp->val[1] == ca->ca_offset) {
182: if (strcmp("isp", bp->name) == 0 ||
183: strcmp("QLGC,isp", bp->name) == 0 ||
184: strcmp("PTI,isp", bp->name) == 0 ||
185: strcmp("ptisp", bp->name) == 0) {
186: storebp = 1;
187: }
188: }
189: }
190:
191: /*
192: * XXX: Now figure out what the proper burst sizes, etc., to use.
193: */
194: sbc->sbus_mdvec.dv_conf1 |= BIU_SBUS_CONF1_FIFO_8;
195:
196: /*
197: * Some early versions of the PTI SBus adapter
198: * would fail in trying to download (via poking)
199: * FW. We give up on them.
200: */
201: if (strcmp("PTI,ptisp", ca->ca_ra.ra_name) == 0 ||
202: strcmp("ptisp", ca->ca_ra.ra_name) == 0) {
203: sbc->sbus_mdvec.dv_ispfw = NULL;
204: }
205:
206: isp->isp_mdvec = &sbc->sbus_mdvec;
207: isp->isp_bustype = ISP_BT_SBUS;
208: isp->isp_type = ISP_HA_SCSI_UNKNOWN;
209: isp->isp_param = &sbc->sbus_dev;
210: bzero(isp->isp_param, sizeof (sdparam));
211:
212: sbc->sbus_poff[BIU_BLOCK >> _BLK_REG_SHFT] = BIU_REGS_OFF;
213: sbc->sbus_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = SBUS_MBOX_REGS_OFF;
214: sbc->sbus_poff[SXP_BLOCK >> _BLK_REG_SHFT] = SBUS_SXP_REGS_OFF;
215: sbc->sbus_poff[RISC_BLOCK >> _BLK_REG_SHFT] = SBUS_RISC_REGS_OFF;
216: sbc->sbus_poff[DMA_BLOCK >> _BLK_REG_SHFT] = DMA_REGS_OFF;
217:
218: /* Establish interrupt channel */
219: sbc->sbus_ih.ih_fun = (void *) isp_sbus_intr;
220: sbc->sbus_ih.ih_arg = sbc;
221: intr_establish(sbc->sbus_pri, &sbc->sbus_ih, IPL_BIO, self->dv_xname);
222:
223: /*
224: * Set up logging levels.
225: */
226: #ifdef ISP_LOGDEFAULT
227: isp->isp_dblev = ISP_LOGDEFAULT;
228: #else
229: isp->isp_dblev = ISP_LOGWARN|ISP_LOGERR;
230: #ifdef SCSIDEBUG
231: isp->isp_dblev |= ISP_LOGDEBUG1|ISP_LOGDEBUG2;
232: #endif
233: #ifdef DEBUG
234: isp->isp_dblev |= ISP_LOGDEBUG0|ISP_LOGCONFIG|ISP_LOGINFO;
235: #endif
236: #endif
237: isp->isp_confopts = self->dv_cfdata->cf_flags;
238: isp->isp_role = ISP_DEFAULT_ROLES;
239:
240: ISP_LOCK(isp);
241: isp->isp_osinfo.no_mbox_ints = 1;
242: isp_reset(isp);
243: if (isp->isp_state != ISP_RESETSTATE) {
244: ISP_UNLOCK(isp);
245: return;
246: }
247: ENABLE_INTS(isp);
248: isp_init(isp);
249: if (isp->isp_state != ISP_INITSTATE) {
250: isp_uninit(isp);
251: ISP_UNLOCK(isp);
252: return;
253: }
254:
255: /*
256: * do generic attach.
257: */
258: if (storebp) {
259: /*
260: * We're the booting HBA.
261: *
262: * Override the bootpath name with our driver name
263: * so we will do the correct matching and and store
264: * the next component's boot path entry, also so a
265: * successful match will occur.
266: */
267: bcopy("isp", bp->name, 4);
268: bp++;
269: bootpath_store(1, bp);
270: }
271: isp_attach(isp);
272: if (isp->isp_state != ISP_RUNSTATE) {
273: isp_uninit(isp);
274: }
275: if (storebp) {
276: bootpath_store(1, NULL);
277: }
278: ISP_UNLOCK(isp);
279: }
280:
281: #define IspVirt2Off(a, x) \
282: (((struct isp_sbussoftc *)a)->sbus_poff[((x) & _BLK_REG_MASK) >> \
283: _BLK_REG_SHFT] + ((x) & 0xff))
284:
285: #define BXR2(pcs, off) (sbc->sbus_reg[off >> 1])
286:
287: static int
288: isp_sbus_rd_isr(struct ispsoftc *isp, u_int16_t *isrp,
289: u_int16_t *semap, u_int16_t *mbp)
290: {
291: struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp;
292: volatile u_int16_t isr, sema;
293:
294: isr = BXR2(pcs, IspVirt2Off(isp, BIU_ISR));
295: sema = BXR2(pcs, IspVirt2Off(isp, BIU_SEMA));
296: isp_prt(isp, ISP_LOGDEBUG3, "ISR 0x%x SEMA 0x%x", isr, sema);
297: isr &= INT_PENDING_MASK(isp);
298: sema &= BIU_SEMA_LOCK;
299: if (isr == 0 && sema == 0) {
300: return (0);
301: }
302: *isrp = isr;
303: if ((*semap = sema) != 0) {
304: *mbp = BXR2(pcs, IspVirt2Off(isp, OUTMAILBOX0));
305: }
306: return (1);
307: }
308:
309: static u_int16_t
310: isp_sbus_rd_reg(struct ispsoftc *isp, int regoff)
311: {
312: struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp;
313: int offset = sbc->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT];
314: offset += (regoff & 0xff);
315: return ((u_int16_t) sbc->sbus_reg[offset >> 1]);
316: }
317:
318: static void
319: isp_sbus_wr_reg(struct ispsoftc *isp, int regoff, u_int16_t val)
320: {
321: struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp;
322: int offset = sbc->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT];
323: offset += (regoff & 0xff);
324: sbc->sbus_reg[offset >> 1] = val;
325: }
326:
327:
328: static int
329: isp_sbus_mbxdma(struct ispsoftc *isp)
330: {
331: struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp;
332: size_t len;
333:
334: if (isp->isp_rquest_dma) /* been here before? */
335: return (0);
336:
337: /*
338: * NOTE: Since most Sun machines aren't I/O coherent,
339: * map the mailboxes through kdvma space to force them
340: * to be uncached.
341: */
342:
343: len = isp->isp_maxcmds * sizeof (XS_T);
344: isp->isp_xflist = (XS_T **) malloc(len, M_DEVBUF, M_WAITOK);
345: bzero(isp->isp_xflist, len);
346: len = isp->isp_maxcmds * sizeof (vaddr_t);
347: sbc->sbus_kdma_allocs = (vaddr_t *) malloc(len, M_DEVBUF, M_WAITOK);
348: bzero(sbc->sbus_kdma_allocs, len);
349:
350: /*
351: * Allocate and map the request queue.
352: */
353: len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp));
354: isp->isp_rquest = (volatile caddr_t)malloc(len, M_DEVBUF, M_NOWAIT);
355: if (isp->isp_rquest == 0) {
356: printf("%s: cannot allocate request queue\n", isp->isp_name);
357: return (1);
358: }
359: isp->isp_rquest_dma = (u_int32_t)
360: kdvma_mapin((caddr_t)isp->isp_rquest, len, 0);
361: if (isp->isp_rquest_dma == 0) {
362: printf("%s: could not mapin request queue\n", isp->isp_name);
363: return (1);
364: }
365:
366: /*
367: * Allocate and map the result queue.
368: */
369: len = ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp));
370: isp->isp_result = (volatile caddr_t)malloc(len, M_DEVBUF, M_NOWAIT);
371: if (isp->isp_result == 0) {
372: printf("%s: cannot allocate result queue\n", isp->isp_name);
373: return (1);
374: }
375: isp->isp_result_dma = (u_int32_t)
376: kdvma_mapin((caddr_t)isp->isp_result, len, 0);
377: if (isp->isp_result_dma == 0) {
378: printf("%s: could not mapin result queue\n", isp->isp_name);
379: return (1);
380: }
381: return (0);
382: }
383:
384: /*
385: * TODO: If kdvma_mapin fails, try using multiple smaller chunks..
386: */
387:
388: static int
389: isp_sbus_dmasetup(struct ispsoftc *isp, struct scsi_xfer *xs, ispreq_t *rq,
390: u_int16_t *iptrp, u_int16_t optr)
391: {
392: struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp;
393: ispreq_t *qe;
394: ispcontreq_t *crq;
395: vaddr_t kdvma;
396: int dosleep = (xs->flags & SCSI_NOSLEEP) != 0;
397:
398: qe = (ispreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, isp->isp_reqidx);
399: if (xs->datalen == 0) {
400: rq->req_seg_count = 1;
401: goto mbxsync;
402: }
403: if (CPU_ISSUN4M) {
404: kdvma = (vaddr_t)
405: kdvma_mapin((caddr_t)xs->data, xs->datalen, dosleep);
406: if (kdvma == (vaddr_t) 0) {
407: XS_SETERR(xs, HBA_BOTCH);
408: return (CMD_COMPLETE);
409: }
410: } else {
411: kdvma = (vaddr_t) xs->data;
412: }
413:
414: if (sbc->sbus_kdma_allocs[isp_handle_index(rq->req_handle)] != 0) {
415: panic("%s: kdma handle already allocated", isp->isp_name);
416: /* NOTREACHED */
417: }
418: if (XS_CDBLEN(xs) > 12) {
419: crq = (ispcontreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, *iptrp);
420: *iptrp = ISP_NXT_QENTRY(*iptrp, RQUEST_QUEUE_LEN(isp));
421: if (*iptrp == optr) {
422: printf("%s: Request Queue Overflow++\n", isp->isp_name);
423: if (CPU_ISSUN4M) {
424: dvma_mapout(kdvma,
425: (vaddr_t) xs->data, xs->datalen);
426: }
427: XS_SETERR(xs, HBA_BOTCH);
428: return (CMD_EAGAIN);
429: }
430: } else {
431: crq = NULL;
432: }
433: sbc->sbus_kdma_allocs[isp_handle_index(rq->req_handle)] = kdvma;
434: if (xs->flags & SCSI_DATA_IN) {
435: rq->req_flags |= REQFLAG_DATA_IN;
436: } else {
437: rq->req_flags |= REQFLAG_DATA_OUT;
438: }
439: if (crq) {
440: rq->req_seg_count = 2;
441: rq->req_dataseg[0].ds_count = 0;
442: rq->req_dataseg[0].ds_base = 0;
443: bzero((void *)crq, sizeof (*crq));
444: crq->req_header.rqs_entry_count = 1;
445: crq->req_header.rqs_entry_type = RQSTYPE_DATASEG;
446: crq->req_dataseg[0].ds_count = xs->datalen;
447: crq->req_dataseg[0].ds_base = (u_int32_t) kdvma;
448: ISP_SBUSIFY_ISPHDR(isp, &crq->req_header)
449: } else {
450: rq->req_dataseg[0].ds_count = xs->datalen;
451: rq->req_dataseg[0].ds_base = (u_int32_t) kdvma;
452: rq->req_seg_count = 1;
453: }
454:
455: mbxsync:
456: ISP_SWIZZLE_REQUEST(isp, rq);
457: bcopy(rq, qe, sizeof (ispreq_t));
458: return (CMD_QUEUED);
459: }
460:
461: static void
462: isp_sbus_dmateardown(struct ispsoftc *isp, XS_T *xs, u_int16_t handle)
463: {
464: struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp;
465: vaddr_t kdvma;
466:
467: if (xs->flags & SCSI_DATA_IN) {
468: cpuinfo.cache_flush(xs->data, xs->datalen - xs->resid);
469: }
470: if (sbc->sbus_kdma_allocs[isp_handle_index(handle)] == (vaddr_t) 0) {
471: panic("%s: kdma handle not already allocated", isp->isp_name);
472: /* NOTREACHED */
473: }
474: kdvma = sbc->sbus_kdma_allocs[isp_handle_index(handle)];
475: sbc->sbus_kdma_allocs[isp_handle_index(handle)] = (vaddr_t) 0;
476: if (CPU_ISSUN4M) {
477: dvma_mapout(kdvma, (vaddr_t) xs->data, xs->datalen);
478: }
479: }
480:
481: static int
482: isp_sbus_intr(void *arg)
483: {
484: u_int16_t isr, sema, mbox;
485: struct ispsoftc *isp = (struct ispsoftc *)arg;
486:
487: isp->isp_intcnt++;
488: if (ISP_READ_ISR(isp, &isr, &sema, &mbox) == 0) {
489: isp->isp_intbogus++;
490: return (0);
491: } else {
492: isp->isp_osinfo.onintstack = 1;
493: isp_intr(isp, isr, sema, mbox);
494: isp->isp_osinfo.onintstack = 0;
495: return (1);
496: }
497: }
CVSweb
![[BACK]](/icons/back.gif){kind=icon}
Return to isp_sbus.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / sys / arch / sparc / dev