Commit | Line | Data |
---|---|---|
3b186c1c | 1 | /* up.c 4.62 82/12/05 */ |
008c0481 | 2 | |
66b4fb09 | 3 | #include "up.h" |
a3cb8f60 | 4 | #if NSC > 0 |
008c0481 | 5 | /* |
7ed3da3d BJ |
6 | * UNIBUS disk driver with: |
7 | * overlapped seeks, | |
8 | * ECC recovery, and | |
9 | * bad sector forwarding. | |
0c48c799 BJ |
10 | * |
11 | * TODO: | |
299d67ed | 12 | * Check that offset recovery code works |
008c0481 BJ |
13 | */ |
14 | ||
15 | #include "../h/param.h" | |
16 | #include "../h/systm.h" | |
41888f16 | 17 | #include "../h/dk.h" |
3b186c1c | 18 | #include "../h/dkbad.h" |
008c0481 BJ |
19 | #include "../h/buf.h" |
20 | #include "../h/conf.h" | |
21 | #include "../h/dir.h" | |
22 | #include "../h/user.h" | |
23 | #include "../h/map.h" | |
80e7c811 | 24 | #include "../h/pte.h" |
008c0481 | 25 | #include "../h/vm.h" |
0ff318b2 | 26 | #include "../h/cmap.h" |
740e4029 | 27 | #include "../h/uio.h" |
7ed3da3d | 28 | #include "../h/dkbad.h" |
18eded4b BJ |
29 | #include "../vax/cpu.h" |
30 | #include "../vax/nexus.h" | |
31 | #include "../vaxuba/ubavar.h" | |
32 | #include "../vaxuba/ubareg.h" | |
33 | #include "../vaxuba/upreg.h" | |
008c0481 | 34 | |
3f3a34c3 BJ |
35 | struct up_softc { |
36 | int sc_softas; | |
71236e46 | 37 | int sc_ndrive; |
3f3a34c3 | 38 | int sc_wticks; |
736772ef | 39 | int sc_recal; |
a3cb8f60 | 40 | } up_softc[NSC]; |
008c0481 | 41 | |
3f3a34c3 | 42 | /* THIS SHOULD BE READ OFF THE PACK, PER DRIVE */ |
008c0481 BJ |
43 | struct size |
44 | { | |
45 | daddr_t nblocks; | |
46 | int cyloff; | |
47 | } up_sizes[8] = { | |
7ed3da3d BJ |
48 | #ifdef ERNIE |
49 | 49324, 0, /* A=cyl 0 thru 26 */ | |
50 | #else | |
c94d7fe4 BJ |
51 | #ifdef ERNIE |
52 | 49324, 0, /* A=cyl 0 thru 26 */ | |
53 | #else | |
008c0481 | 54 | 15884, 0, /* A=cyl 0 thru 26 */ |
7ed3da3d | 55 | #endif |
c94d7fe4 | 56 | #endif |
008c0481 | 57 | 33440, 27, /* B=cyl 27 thru 81 */ |
d1778415 | 58 | 495520, 0, /* C=cyl 0 thru 814 */ |
008c0481 BJ |
59 | 15884, 562, /* D=cyl 562 thru 588 */ |
60 | 55936, 589, /* E=cyl 589 thru 680 */ | |
0d728200 BJ |
61 | #ifndef NOBADSECT |
62 | 81376, 681, /* F=cyl 681 thru 814 */ | |
63 | 153728, 562, /* G=cyl 562 thru 814 */ | |
64 | #else | |
65 | 81472, 681, | |
66 | 153824, 562, | |
67 | #endif | |
008c0481 | 68 | 291346, 82, /* H=cyl 82 thru 561 */ |
3f3a34c3 BJ |
69 | }, fj_sizes[8] = { |
70 | 15884, 0, /* A=cyl 0 thru 49 */ | |
71 | 33440, 50, /* B=cyl 50 thru 154 */ | |
72 | 263360, 0, /* C=cyl 0 thru 822 */ | |
73 | 0, 0, | |
74 | 0, 0, | |
75 | 0, 0, | |
76 | 0, 0, | |
0d728200 BJ |
77 | #ifndef NOBADSECT |
78 | 213664, 155, /* H=cyl 155 thru 822 */ | |
79 | #else | |
80 | 213760, 155, | |
81 | #endif | |
a1ef7a52 | 82 | }, upam_sizes[8] = { |
0cc9b5a9 BJ |
83 | 15884, 0, /* A=cyl 0 thru 31 */ |
84 | 33440, 32, /* B=cyl 32 thru 97 */ | |
85 | 524288, 0, /* C=cyl 0 thru 1023 */ | |
eadd189e SL |
86 | 27786, 668, |
87 | 27786, 723, | |
88 | 125440, 778, | |
0cc9b5a9 BJ |
89 | 181760, 668, /* G=cyl 668 thru 1022 */ |
90 | 291346, 98, /* H=cyl 98 thru 667 */ | |
008c0481 | 91 | }; |
3f3a34c3 | 92 | /* END OF STUFF WHICH SHOULD BE READ IN PER DISK */ |
008c0481 | 93 | |
cc7ff771 BJ |
94 | /* |
95 | * On a 780 upSDIST could be 2, but | |
96 | * in the interest of 750's... | |
97 | */ | |
98 | #define _upSDIST 3 /* 1.5 msec */ | |
3f3a34c3 BJ |
99 | #define _upRDIST 4 /* 2.0 msec */ |
100 | ||
101 | int upSDIST = _upSDIST; | |
102 | int upRDIST = _upRDIST; | |
103 | ||
71236e46 | 104 | int upprobe(), upslave(), upattach(), updgo(), upintr(); |
89bd2f01 BJ |
105 | struct uba_ctlr *upminfo[NSC]; |
106 | struct uba_device *updinfo[NUP]; | |
c10bcf0a BJ |
107 | #define UPIPUNITS 8 |
108 | struct uba_device *upip[NSC][UPIPUNITS]; /* fuji w/fixed head gives n,n+4 */ | |
d763a2b7 | 109 | |
71236e46 | 110 | u_short upstd[] = { 0776700, 0774400, 0776300, 0 }; |
0801d37f | 111 | struct uba_driver scdriver = |
71236e46 | 112 | { upprobe, upslave, upattach, updgo, upstd, "up", updinfo, "sc", upminfo }; |
3f3a34c3 | 113 | struct buf uputab[NUP]; |
7ed3da3d | 114 | char upinit[NUP]; |
3b186c1c | 115 | char upinit[NUP]; |
3f3a34c3 BJ |
116 | |
117 | struct upst { | |
118 | short nsect; | |
119 | short ntrak; | |
120 | short nspc; | |
121 | short ncyl; | |
122 | struct size *sizes; | |
123 | } upst[] = { | |
71236e46 BJ |
124 | 32, 19, 32*19, 823, up_sizes, /* 9300/cdc */ |
125 | /* 9300 actually has 815 cylinders... */ | |
3f3a34c3 | 126 | 32, 10, 32*10, 823, fj_sizes, /* fujitsu 160m */ |
a1ef7a52 | 127 | 32, 16, 32*16, 1024, upam_sizes, /* ampex capricorn */ |
3f3a34c3 | 128 | }; |
008c0481 | 129 | |
2601dfbd | 130 | u_char up_offset[16] = { |
7ed3da3d BJ |
131 | UPOF_P400, UPOF_M400, UPOF_P400, UPOF_M400, |
132 | UPOF_P800, UPOF_M800, UPOF_P800, UPOF_M800, | |
133 | UPOF_P1200, UPOF_M1200, UPOF_P1200, UPOF_M1200, | |
134 | 0, 0, 0, 0 | |
2601dfbd | 135 | }; |
008c0481 | 136 | |
0801d37f | 137 | struct buf rupbuf[NUP]; |
7ed3da3d BJ |
138 | #ifndef NOBADSECT |
139 | struct buf bupbuf[NUP]; | |
140 | struct dkbad upbad[NUP]; | |
141 | #endif | |
3b186c1c SL |
142 | #ifndef NOBADSECT |
143 | struct buf bupbuf[NUP]; | |
144 | struct dkbad upbad[NUP]; | |
145 | #endif | |
008c0481 | 146 | |
008c0481 BJ |
147 | #define b_cylin b_resid |
148 | ||
008c0481 BJ |
149 | #ifdef INTRLVE |
150 | daddr_t dkblock(); | |
151 | #endif | |
3f3a34c3 BJ |
152 | |
153 | int upwstart, upwatch(); /* Have started guardian */ | |
7e00c42b | 154 | int upseek; |
f88f8fdb | 155 | int upwaitdry; |
3f3a34c3 BJ |
156 | |
157 | /*ARGSUSED*/ | |
71236e46 | 158 | upprobe(reg) |
3f3a34c3 | 159 | caddr_t reg; |
008c0481 | 160 | { |
d763a2b7 BJ |
161 | register int br, cvec; |
162 | ||
71236e46 BJ |
163 | #ifdef lint |
164 | br = 0; cvec = br; br = cvec; | |
165 | #endif | |
2601dfbd | 166 | ((struct updevice *)reg)->upcs1 = UP_IE|UP_RDY; |
71236e46 | 167 | DELAY(10); |
2601dfbd | 168 | ((struct updevice *)reg)->upcs1 = 0; |
9c0adba0 | 169 | return (sizeof (struct updevice)); |
3f3a34c3 BJ |
170 | } |
171 | ||
71236e46 | 172 | upslave(ui, reg) |
89bd2f01 | 173 | struct uba_device *ui; |
3f3a34c3 BJ |
174 | caddr_t reg; |
175 | { | |
2601dfbd | 176 | register struct updevice *upaddr = (struct updevice *)reg; |
3f3a34c3 BJ |
177 | |
178 | upaddr->upcs1 = 0; /* conservative */ | |
71236e46 | 179 | upaddr->upcs2 = ui->ui_slave; |
c224ab94 | 180 | upaddr->upcs1 = UP_NOP|UP_GO; |
7ed3da3d | 181 | upaddr->upcs1 = UP_NOP|UP_GO; |
299d67ed | 182 | if (upaddr->upcs2&UPCS2_NED) { |
2601dfbd | 183 | upaddr->upcs1 = UP_DCLR|UP_GO; |
3f3a34c3 BJ |
184 | return (0); |
185 | } | |
71236e46 BJ |
186 | return (1); |
187 | } | |
188 | ||
189 | upattach(ui) | |
89bd2f01 | 190 | register struct uba_device *ui; |
71236e46 | 191 | { |
2601dfbd | 192 | register struct updevice *upaddr; |
71236e46 | 193 | |
6a81870e | 194 | if (upwstart == 0) { |
7780575a | 195 | timeout(upwatch, (caddr_t)0, hz); |
6a81870e BJ |
196 | upwstart++; |
197 | } | |
b7333467 BJ |
198 | if (ui->ui_dk >= 0) |
199 | dk_mspw[ui->ui_dk] = .0000020345; | |
71236e46 BJ |
200 | upip[ui->ui_ctlr][ui->ui_slave] = ui; |
201 | up_softc[ui->ui_ctlr].sc_ndrive++; | |
2601dfbd BJ |
202 | upaddr = (struct updevice *)ui->ui_addr; |
203 | upaddr->upcs1 = 0; | |
204 | upaddr->upcs2 = ui->ui_slave; | |
26e15512 | 205 | upaddr->uphr = UPHR_MAXTRAK; |
c6a51a7b | 206 | if (upaddr->uphr == 9) |
26e15512 | 207 | ui->ui_type = 1; /* fujitsu hack */ |
0cc9b5a9 BJ |
208 | else if (upaddr->uphr == 15) |
209 | ui->ui_type = 2; /* ampex hack */ | |
26e15512 | 210 | upaddr->upcs2 = UPCS2_CLR; |
3f3a34c3 BJ |
211 | } |
212 | ||
3b186c1c SL |
213 | upopen(dev) |
214 | dev_t dev; | |
215 | { | |
216 | register int unit = minor(dev) >> 3; | |
217 | register struct uba_device *ui; | |
218 | ||
219 | if (unit >= NUP || (ui = updinfo[unit]) == 0 || ui->ui_alive == 0) | |
220 | return (ENXIO); | |
221 | return (0); | |
222 | } | |
223 | ||
3f3a34c3 BJ |
224 | upstrategy(bp) |
225 | register struct buf *bp; | |
226 | { | |
89bd2f01 | 227 | register struct uba_device *ui; |
3f3a34c3 BJ |
228 | register struct upst *st; |
229 | register int unit; | |
7e00c42b | 230 | register struct buf *dp; |
3f3a34c3 | 231 | int xunit = minor(bp->b_dev) & 07; |
7e00c42b | 232 | long bn, sz; |
3f3a34c3 | 233 | |
7e00c42b | 234 | sz = (bp->b_bcount+511) >> 9; |
008c0481 | 235 | unit = dkunit(bp); |
3f3a34c3 BJ |
236 | if (unit >= NUP) |
237 | goto bad; | |
238 | ui = updinfo[unit]; | |
239 | if (ui == 0 || ui->ui_alive == 0) | |
240 | goto bad; | |
241 | st = &upst[ui->ui_type]; | |
242 | if (bp->b_blkno < 0 || | |
243 | (bn = dkblock(bp))+sz > st->sizes[xunit].nblocks) | |
244 | goto bad; | |
245 | bp->b_cylin = bn/st->nspc + st->sizes[xunit].cyloff; | |
0cc9b5a9 | 246 | (void) spl5(); |
7e00c42b BJ |
247 | dp = &uputab[ui->ui_unit]; |
248 | disksort(dp, bp); | |
249 | if (dp->b_active == 0) { | |
3f3a34c3 BJ |
250 | (void) upustart(ui); |
251 | bp = &ui->ui_mi->um_tab; | |
252 | if (bp->b_actf && bp->b_active == 0) | |
253 | (void) upstart(ui->ui_mi); | |
008c0481 | 254 | } |
0cc9b5a9 | 255 | (void) spl0(); |
3f3a34c3 BJ |
256 | return; |
257 | ||
258 | bad: | |
259 | bp->b_flags |= B_ERROR; | |
260 | iodone(bp); | |
261 | return; | |
008c0481 BJ |
262 | } |
263 | ||
736772ef BJ |
264 | /* |
265 | * Unit start routine. | |
266 | * Seek the drive to be where the data is | |
267 | * and then generate another interrupt | |
268 | * to actually start the transfer. | |
269 | * If there is only one drive on the controller, | |
270 | * or we are very close to the data, don't | |
271 | * bother with the search. If called after | |
272 | * searching once, don't bother to look where | |
273 | * we are, just queue for transfer (to avoid | |
274 | * positioning forever without transferrring.) | |
275 | */ | |
3f3a34c3 | 276 | upustart(ui) |
89bd2f01 | 277 | register struct uba_device *ui; |
008c0481 BJ |
278 | { |
279 | register struct buf *bp, *dp; | |
89bd2f01 | 280 | register struct uba_ctlr *um; |
2601dfbd | 281 | register struct updevice *upaddr; |
3f3a34c3 | 282 | register struct upst *st; |
008c0481 | 283 | daddr_t bn; |
736772ef | 284 | int sn, csn; |
71236e46 BJ |
285 | /* |
286 | * The SC21 cancels commands if you just say | |
2601dfbd | 287 | * cs1 = UP_IE |
71236e46 BJ |
288 | * so we are cautious about handling of cs1. |
289 | * Also don't bother to clear as bits other than in upintr(). | |
290 | */ | |
736772ef BJ |
291 | int didie = 0; |
292 | ||
293 | if (ui == 0) | |
294 | return (0); | |
89bd2f01 | 295 | um = ui->ui_mi; |
3f3a34c3 BJ |
296 | dk_busy &= ~(1<<ui->ui_dk); |
297 | dp = &uputab[ui->ui_unit]; | |
7bc8d985 | 298 | if ((bp = dp->b_actf) == NULL) |
eb891eaa | 299 | goto out; |
736772ef BJ |
300 | /* |
301 | * If the controller is active, just remember | |
302 | * that this device would like to be positioned... | |
303 | * if we tried to position now we would confuse the SC21. | |
304 | */ | |
3f3a34c3 | 305 | if (um->um_tab.b_active) { |
d763a2b7 | 306 | up_softc[um->um_ctlr].sc_softas |= 1<<ui->ui_slave; |
2a3b9a7f BJ |
307 | return (0); |
308 | } | |
736772ef BJ |
309 | /* |
310 | * If we have already positioned this drive, | |
311 | * then just put it on the ready queue. | |
312 | */ | |
a3f430e0 BJ |
313 | if (dp->b_active) |
314 | goto done; | |
315 | dp->b_active = 1; | |
2601dfbd | 316 | upaddr = (struct updevice *)um->um_addr; |
3f3a34c3 | 317 | upaddr->upcs2 = ui->ui_slave; |
736772ef BJ |
318 | /* |
319 | * If drive has just come up, | |
320 | * setup the pack. | |
321 | */ | |
7ed3da3d BJ |
322 | if ((upaddr->upds & UPDS_VV) == 0 || upinit[ui->ui_unit] == 0) { |
323 | #ifndef NOBADSECT | |
324 | struct buf *bbp = &bupbuf[ui->ui_unit]; | |
325 | #endif | |
71236e46 | 326 | /* SHOULD WARN SYSTEM THAT THIS HAPPENED */ |
7ed3da3d | 327 | upinit[ui->ui_unit] = 1; |
3b186c1c | 328 | upinit[ui->ui_unit] = 1; |
2601dfbd BJ |
329 | upaddr->upcs1 = UP_IE|UP_DCLR|UP_GO; |
330 | upaddr->upcs1 = UP_IE|UP_PRESET|UP_GO; | |
299d67ed | 331 | upaddr->upof = UPOF_FMT22; |
eb891eaa | 332 | didie = 1; |
3b186c1c SL |
333 | #ifndef NOBADSECT |
334 | st = &upst[ui->ui_type]; | |
335 | bbp->b_flags = B_READ|B_BUSY; | |
336 | bbp->b_dev = bp->b_dev; | |
337 | bbp->b_bcount = 512; | |
338 | bbp->b_un.b_addr = (caddr_t)&upbad[ui->ui_unit]; | |
339 | bbp->b_blkno = st->ncyl * st->nspc - st->nsect; | |
340 | bbp->b_cylin = st->ncyl - 1; | |
341 | dp->b_actf = bbp; | |
342 | bbp->av_forw = bp; | |
343 | bp = bbp; | |
344 | #endif | |
7ed3da3d BJ |
345 | #ifndef NOBADSECT |
346 | st = &upst[ui->ui_type]; | |
347 | bbp->b_flags = B_READ|B_BUSY; | |
348 | bbp->b_dev = bp->b_dev; | |
349 | bbp->b_bcount = 512; | |
350 | bbp->b_un.b_addr = (caddr_t)&upbad[ui->ui_unit]; | |
351 | bbp->b_blkno = st->ncyl * st->nspc - st->nsect; | |
352 | bbp->b_cylin = st->ncyl - 1; | |
353 | dp->b_actf = bbp; | |
354 | bbp->av_forw = bp; | |
355 | bp = bbp; | |
356 | #endif | |
008c0481 | 357 | } |
736772ef BJ |
358 | /* |
359 | * If drive is offline, forget about positioning. | |
360 | */ | |
299d67ed | 361 | if ((upaddr->upds & (UPDS_DPR|UPDS_MOL)) != (UPDS_DPR|UPDS_MOL)) |
2a3b9a7f | 362 | goto done; |
736772ef BJ |
363 | /* |
364 | * If there is only one drive, | |
365 | * dont bother searching. | |
366 | */ | |
71236e46 BJ |
367 | if (up_softc[um->um_ctlr].sc_ndrive == 1) |
368 | goto done; | |
736772ef BJ |
369 | /* |
370 | * Figure out where this transfer is going to | |
371 | * and see if we are close enough to justify not searching. | |
372 | */ | |
3f3a34c3 | 373 | st = &upst[ui->ui_type]; |
008c0481 | 374 | bn = dkblock(bp); |
3f3a34c3 BJ |
375 | sn = bn%st->nspc; |
376 | sn = (sn + st->nsect - upSDIST) % st->nsect; | |
736772ef | 377 | if (bp->b_cylin - upaddr->updc) |
7bc8d985 | 378 | goto search; /* Not on-cylinder */ |
2a3b9a7f BJ |
379 | else if (upseek) |
380 | goto done; /* Ok just to be on-cylinder */ | |
008c0481 | 381 | csn = (upaddr->upla>>6) - sn - 1; |
7bc8d985 | 382 | if (csn < 0) |
3f3a34c3 BJ |
383 | csn += st->nsect; |
384 | if (csn > st->nsect - upRDIST) | |
008c0481 | 385 | goto done; |
008c0481 | 386 | search: |
736772ef BJ |
387 | upaddr->updc = bp->b_cylin; |
388 | /* | |
389 | * Not on cylinder at correct position, | |
390 | * seek/search. | |
391 | */ | |
2a3b9a7f | 392 | if (upseek) |
2601dfbd | 393 | upaddr->upcs1 = UP_IE|UP_SEEK|UP_GO; |
7e00c42b | 394 | else { |
2a3b9a7f | 395 | upaddr->upda = sn; |
2601dfbd | 396 | upaddr->upcs1 = UP_IE|UP_SEARCH|UP_GO; |
2a3b9a7f | 397 | } |
eb891eaa | 398 | didie = 1; |
736772ef BJ |
399 | /* |
400 | * Mark unit busy for iostat. | |
401 | */ | |
3f3a34c3 BJ |
402 | if (ui->ui_dk >= 0) { |
403 | dk_busy |= 1<<ui->ui_dk; | |
404 | dk_seek[ui->ui_dk]++; | |
008c0481 | 405 | } |
eb891eaa | 406 | goto out; |
008c0481 | 407 | done: |
736772ef BJ |
408 | /* |
409 | * Device is ready to go. | |
410 | * Put it on the ready queue for the controller | |
411 | * (unless its already there.) | |
412 | */ | |
2601dfbd BJ |
413 | if (dp->b_active != 2) { |
414 | dp->b_forw = NULL; | |
415 | if (um->um_tab.b_actf == NULL) | |
416 | um->um_tab.b_actf = dp; | |
417 | else | |
418 | um->um_tab.b_actl->b_forw = dp; | |
419 | um->um_tab.b_actl = dp; | |
420 | dp->b_active = 2; | |
421 | } | |
eb891eaa BJ |
422 | out: |
423 | return (didie); | |
008c0481 BJ |
424 | } |
425 | ||
736772ef BJ |
426 | /* |
427 | * Start up a transfer on a drive. | |
428 | */ | |
3f3a34c3 | 429 | upstart(um) |
89bd2f01 | 430 | register struct uba_ctlr *um; |
008c0481 BJ |
431 | { |
432 | register struct buf *bp, *dp; | |
89bd2f01 | 433 | register struct uba_device *ui; |
2601dfbd | 434 | register struct updevice *upaddr; |
7e00c42b | 435 | struct upst *st; |
008c0481 | 436 | daddr_t bn; |
f88f8fdb | 437 | int dn, sn, tn, cmd, waitdry; |
008c0481 | 438 | |
008c0481 | 439 | loop: |
736772ef BJ |
440 | /* |
441 | * Pull a request off the controller queue | |
442 | */ | |
3f3a34c3 | 443 | if ((dp = um->um_tab.b_actf) == NULL) |
eb891eaa | 444 | return (0); |
008c0481 | 445 | if ((bp = dp->b_actf) == NULL) { |
3f3a34c3 | 446 | um->um_tab.b_actf = dp->b_forw; |
008c0481 BJ |
447 | goto loop; |
448 | } | |
736772ef BJ |
449 | /* |
450 | * Mark controller busy, and | |
451 | * determine destination of this request. | |
452 | */ | |
3f3a34c3 BJ |
453 | um->um_tab.b_active++; |
454 | ui = updinfo[dkunit(bp)]; | |
008c0481 | 455 | bn = dkblock(bp); |
3f3a34c3 BJ |
456 | dn = ui->ui_slave; |
457 | st = &upst[ui->ui_type]; | |
458 | sn = bn%st->nspc; | |
459 | tn = sn/st->nsect; | |
460 | sn %= st->nsect; | |
2601dfbd | 461 | upaddr = (struct updevice *)ui->ui_addr; |
736772ef BJ |
462 | /* |
463 | * Select drive if not selected already. | |
464 | */ | |
465 | if ((upaddr->upcs2&07) != dn) | |
466 | upaddr->upcs2 = dn; | |
467 | /* | |
468 | * Check that it is ready and online | |
469 | */ | |
f88f8fdb | 470 | waitdry = 0; |
299d67ed | 471 | while ((upaddr->upds&UPDS_DRY) == 0) { |
7ed3da3d | 472 | printf("up%d: ds wait ds=%o\n",dkunit(bp),upaddr->upds); |
ac1276f8 | 473 | printf("up%d: ds wait ds=%o\n",dkunit(bp),upaddr->upds); |
f88f8fdb BJ |
474 | if (++waitdry > 512) |
475 | break; | |
476 | upwaitdry++; | |
477 | } | |
299d67ed | 478 | if ((upaddr->upds & UPDS_DREADY) != UPDS_DREADY) { |
f6d201ff | 479 | printf("up%d: not ready", dkunit(bp)); |
299d67ed | 480 | if ((upaddr->upds & UPDS_DREADY) != UPDS_DREADY) { |
71236e46 | 481 | printf("\n"); |
3f3a34c3 BJ |
482 | um->um_tab.b_active = 0; |
483 | um->um_tab.b_errcnt = 0; | |
88253fd2 BJ |
484 | dp->b_actf = bp->av_forw; |
485 | dp->b_active = 0; | |
486 | bp->b_flags |= B_ERROR; | |
487 | iodone(bp); | |
88253fd2 BJ |
488 | goto loop; |
489 | } | |
736772ef BJ |
490 | /* |
491 | * Oh, well, sometimes this | |
492 | * happens, for reasons unknown. | |
493 | */ | |
2601dfbd | 494 | printf(" (flakey)\n"); |
008c0481 | 495 | } |
736772ef BJ |
496 | /* |
497 | * Setup for the transfer, and get in the | |
498 | * UNIBUS adaptor queue. | |
499 | */ | |
5aa9d5ea | 500 | upaddr->updc = bp->b_cylin; |
008c0481 | 501 | upaddr->upda = (tn << 8) + sn; |
008c0481 BJ |
502 | upaddr->upwc = -bp->b_bcount / sizeof (short); |
503 | if (bp->b_flags & B_READ) | |
2601dfbd | 504 | cmd = UP_IE|UP_RCOM|UP_GO; |
008c0481 | 505 | else |
2601dfbd | 506 | cmd = UP_IE|UP_WCOM|UP_GO; |
b7333467 | 507 | um->um_cmd = cmd; |
a0eab615 | 508 | (void) ubago(ui); |
eb891eaa | 509 | return (1); |
008c0481 BJ |
510 | } |
511 | ||
736772ef BJ |
512 | /* |
513 | * Now all ready to go, stuff the registers. | |
514 | */ | |
b7333467 | 515 | updgo(um) |
89bd2f01 | 516 | struct uba_ctlr *um; |
3f3a34c3 | 517 | { |
2601dfbd | 518 | register struct updevice *upaddr = (struct updevice *)um->um_addr; |
7e00c42b | 519 | |
de59ccc2 | 520 | um->um_tab.b_active = 2; /* should now be 2 */ |
b7333467 BJ |
521 | upaddr->upba = um->um_ubinfo; |
522 | upaddr->upcs1 = um->um_cmd|((um->um_ubinfo>>8)&0x300); | |
3f3a34c3 BJ |
523 | } |
524 | ||
736772ef BJ |
525 | /* |
526 | * Handle a disk interrupt. | |
527 | */ | |
443c8066 | 528 | upintr(sc21) |
3f3a34c3 | 529 | register sc21; |
008c0481 BJ |
530 | { |
531 | register struct buf *bp, *dp; | |
89bd2f01 BJ |
532 | register struct uba_ctlr *um = upminfo[sc21]; |
533 | register struct uba_device *ui; | |
2601dfbd | 534 | register struct updevice *upaddr = (struct updevice *)um->um_addr; |
008c0481 | 535 | register unit; |
7e00c42b | 536 | struct up_softc *sc = &up_softc[um->um_ctlr]; |
71236e46 | 537 | int as = (upaddr->upas & 0377) | sc->sc_softas; |
f88f8fdb | 538 | int needie = 1, waitdry; |
008c0481 | 539 | |
7e00c42b | 540 | sc->sc_wticks = 0; |
71236e46 | 541 | sc->sc_softas = 0; |
736772ef BJ |
542 | /* |
543 | * If controller wasn't transferring, then this is an | |
544 | * interrupt for attention status on seeking drives. | |
545 | * Just service them. | |
546 | */ | |
cc7ff771 | 547 | if (um->um_tab.b_active != 2 && !sc->sc_recal) { |
736772ef BJ |
548 | if (upaddr->upcs1 & UP_TRE) |
549 | upaddr->upcs1 = UP_TRE; | |
550 | goto doattn; | |
551 | } | |
de59ccc2 | 552 | um->um_tab.b_active = 1; |
7ed3da3d | 553 | um->um_tab.b_active = 1; |
736772ef BJ |
554 | /* |
555 | * Get device and block structures, and a pointer | |
89bd2f01 | 556 | * to the uba_device for the drive. Select the drive. |
736772ef BJ |
557 | */ |
558 | dp = um->um_tab.b_actf; | |
559 | bp = dp->b_actf; | |
560 | ui = updinfo[dkunit(bp)]; | |
561 | dk_busy &= ~(1 << ui->ui_dk); | |
562 | if ((upaddr->upcs2&07) != ui->ui_slave) | |
3f3a34c3 | 563 | upaddr->upcs2 = ui->ui_slave; |
3b186c1c SL |
564 | #ifndef NOBADSECT |
565 | if (bp->b_flags&B_BAD) { | |
566 | if (upecc(ui, CONT)) | |
567 | return; | |
568 | } | |
569 | #endif | |
7ed3da3d BJ |
570 | #ifndef NOBADSECT |
571 | if (bp->b_flags&B_BAD) { | |
572 | if (upecc(ui, CONT)) | |
573 | return; | |
574 | } | |
575 | #endif | |
736772ef BJ |
576 | /* |
577 | * Check for and process errors on | |
578 | * either the drive or the controller. | |
579 | */ | |
299d67ed | 580 | if ((upaddr->upds&UPDS_ERR) || (upaddr->upcs1&UP_TRE)) { |
f88f8fdb | 581 | waitdry = 0; |
299d67ed | 582 | while ((upaddr->upds & UPDS_DRY) == 0) { |
f88f8fdb BJ |
583 | if (++waitdry > 512) |
584 | break; | |
585 | upwaitdry++; | |
586 | } | |
299d67ed | 587 | if (upaddr->uper1&UPER1_WLE) { |
736772ef BJ |
588 | /* |
589 | * Give up on write locked devices | |
590 | * immediately. | |
591 | */ | |
f6d201ff | 592 | printf("up%d: write locked\n", dkunit(bp)); |
736772ef BJ |
593 | bp->b_flags |= B_ERROR; |
594 | } else if (++um->um_tab.b_errcnt > 27) { | |
595 | /* | |
596 | * After 28 retries (16 without offset, and | |
597 | * 12 with offset positioning) give up. | |
598 | */ | |
3b186c1c | 599 | hard: |
7ed3da3d | 600 | hard: |
f6d201ff | 601 | harderr(bp, "up"); |
7ed3da3d BJ |
602 | printf("cn=%d tn=%d sn=%d cs2=%b er1=%b er2=%b\n", |
603 | upaddr->updc, ((upaddr->upda)>>8)&077, | |
604 | (upaddr->upda)&037, | |
605 | upaddr->upcs2, UPCS2_BITS, | |
606 | upaddr->uper1, UPER1_BITS, | |
607 | upaddr->uper2, UPER2_BITS); | |
736772ef | 608 | bp->b_flags |= B_ERROR; |
7ed3da3d BJ |
609 | } else if (upaddr->uper2 & UPER2_BSE) { |
610 | #ifndef NOBADSECT | |
611 | if (upecc(ui, BSE)) | |
612 | return; | |
613 | else | |
3b186c1c SL |
614 | #endif |
615 | goto hard; | |
616 | } else if (upaddr->uper2 & UPER2_BSE) { | |
617 | #ifndef NOBADSECT | |
618 | if (upecc(ui, BSE)) | |
619 | return; | |
620 | else | |
7ed3da3d BJ |
621 | #endif |
622 | goto hard; | |
736772ef BJ |
623 | } else { |
624 | /* | |
625 | * Retriable error. | |
626 | * If a soft ecc, correct it (continuing | |
627 | * by returning if necessary. | |
628 | * Otherwise fall through and retry the transfer | |
629 | */ | |
55de6ac9 | 630 | if ((upaddr->uper1&(UPER1_DCK|UPER1_ECH))==UPER1_DCK) { |
7ed3da3d | 631 | if (upecc(ui, ECC)) |
2601dfbd | 632 | return; |
55de6ac9 BJ |
633 | } else |
634 | um->um_tab.b_active = 0; /* force retry */ | |
7ed3da3d BJ |
635 | } else |
636 | um->um_tab.b_active = 0; /* force retry */ | |
736772ef BJ |
637 | } |
638 | /* | |
639 | * Clear drive error and, every eight attempts, | |
640 | * (starting with the fourth) | |
641 | * recalibrate to clear the slate. | |
642 | */ | |
643 | upaddr->upcs1 = UP_TRE|UP_IE|UP_DCLR|UP_GO; | |
644 | needie = 0; | |
fc4d0a69 | 645 | if ((um->um_tab.b_errcnt&07) == 4 && um->um_tab.b_active == 0) { |
736772ef | 646 | upaddr->upcs1 = UP_RECAL|UP_IE|UP_GO; |
a6442a2f BJ |
647 | sc->sc_recal = 0; |
648 | goto nextrecal; | |
736772ef BJ |
649 | } |
650 | } | |
651 | /* | |
a6442a2f BJ |
652 | * Advance recalibration finite state machine |
653 | * if recalibrate in progress, through | |
654 | * RECAL | |
655 | * SEEK | |
656 | * OFFSET (optional) | |
657 | * RETRY | |
736772ef | 658 | */ |
a6442a2f BJ |
659 | switch (sc->sc_recal) { |
660 | ||
661 | case 1: | |
662 | upaddr->updc = bp->b_cylin; | |
663 | upaddr->upcs1 = UP_SEEK|UP_IE|UP_GO; | |
664 | goto nextrecal; | |
665 | case 2: | |
666 | if (um->um_tab.b_errcnt < 16 || (bp->b_flags&B_READ) == 0) | |
667 | goto donerecal; | |
299d67ed | 668 | upaddr->upof = up_offset[um->um_tab.b_errcnt & 017] | UPOF_FMT22; |
a6442a2f BJ |
669 | upaddr->upcs1 = UP_IE|UP_OFFSET|UP_GO; |
670 | goto nextrecal; | |
671 | nextrecal: | |
672 | sc->sc_recal++; | |
673 | um->um_tab.b_active = 1; | |
674 | return; | |
675 | donerecal: | |
676 | case 3: | |
736772ef | 677 | sc->sc_recal = 0; |
a6442a2f BJ |
678 | um->um_tab.b_active = 0; |
679 | break; | |
736772ef BJ |
680 | } |
681 | /* | |
682 | * If still ``active'', then don't need any more retries. | |
683 | */ | |
684 | if (um->um_tab.b_active) { | |
685 | /* | |
686 | * If we were offset positioning, | |
687 | * return to centerline. | |
688 | */ | |
689 | if (um->um_tab.b_errcnt >= 16) { | |
299d67ed | 690 | upaddr->upof = UPOF_FMT22; |
736772ef | 691 | upaddr->upcs1 = UP_RTC|UP_GO|UP_IE; |
299d67ed | 692 | while (upaddr->upds & UPDS_PIP) |
736772ef | 693 | DELAY(25); |
eb891eaa | 694 | needie = 0; |
008c0481 | 695 | } |
736772ef BJ |
696 | um->um_tab.b_active = 0; |
697 | um->um_tab.b_errcnt = 0; | |
698 | um->um_tab.b_actf = dp->b_forw; | |
699 | dp->b_active = 0; | |
700 | dp->b_errcnt = 0; | |
701 | dp->b_actf = bp->av_forw; | |
702 | bp->b_resid = (-upaddr->upwc * sizeof(short)); | |
703 | iodone(bp); | |
704 | /* | |
705 | * If this unit has more work to do, | |
706 | * then start it up right away. | |
707 | */ | |
708 | if (dp->b_actf) | |
709 | if (upustart(ui)) | |
eb891eaa | 710 | needie = 0; |
008c0481 | 711 | } |
736772ef | 712 | as &= ~(1<<ui->ui_slave); |
8c58f40c BJ |
713 | /* |
714 | * Release unibus resources and flush data paths. | |
715 | */ | |
716 | ubadone(um); | |
736772ef BJ |
717 | doattn: |
718 | /* | |
719 | * Process other units which need attention. | |
720 | * For each unit which needs attention, call | |
721 | * the unit start routine to place the slave | |
722 | * on the controller device queue. | |
723 | */ | |
a6442a2f BJ |
724 | while (unit = ffs(as)) { |
725 | unit--; /* was 1 origin */ | |
726 | as &= ~(1<<unit); | |
727 | upaddr->upas = 1<<unit; | |
c10bcf0a | 728 | if (unit < UPIPUNITS && upustart(upip[sc21][unit])) |
a6442a2f BJ |
729 | needie = 0; |
730 | } | |
736772ef BJ |
731 | /* |
732 | * If the controller is not transferring, but | |
733 | * there are devices ready to transfer, start | |
734 | * the controller. | |
735 | */ | |
3f3a34c3 BJ |
736 | if (um->um_tab.b_actf && um->um_tab.b_active == 0) |
737 | if (upstart(um)) | |
eb891eaa | 738 | needie = 0; |
2a3b9a7f | 739 | if (needie) |
2601dfbd | 740 | upaddr->upcs1 = UP_IE; |
008c0481 BJ |
741 | } |
742 | ||
740e4029 | 743 | upread(dev, uio) |
0801d37f | 744 | dev_t dev; |
740e4029 | 745 | struct uio *uio; |
008c0481 | 746 | { |
0801d37f | 747 | register int unit = minor(dev) >> 3; |
7e00c42b | 748 | |
0801d37f | 749 | if (unit >= NUP) |
0cd5eac7 BJ |
750 | return (ENXIO); |
751 | return (physio(upstrategy, &rupbuf[unit], dev, B_READ, minphys, uio)); | |
008c0481 BJ |
752 | } |
753 | ||
002227dd | 754 | upwrite(dev, uio) |
0801d37f | 755 | dev_t dev; |
002227dd | 756 | struct uio *uio; |
008c0481 | 757 | { |
0801d37f | 758 | register int unit = minor(dev) >> 3; |
7e00c42b | 759 | |
0801d37f | 760 | if (unit >= NUP) |
0cd5eac7 BJ |
761 | return (ENXIO); |
762 | return (physio(upstrategy, &rupbuf[unit], dev, B_WRITE, minphys, uio)); | |
008c0481 BJ |
763 | } |
764 | ||
7bc8d985 BJ |
765 | /* |
766 | * Correct an ECC error, and restart the i/o to complete | |
767 | * the transfer if necessary. This is quite complicated because | |
768 | * the transfer may be going to an odd memory address base and/or | |
769 | * across a page boundary. | |
770 | */ | |
7ed3da3d | 771 | upecc(ui, flag) |
89bd2f01 | 772 | register struct uba_device *ui; |
7ed3da3d | 773 | int flag; |
3b186c1c | 774 | int flag; |
008c0481 | 775 | { |
2601dfbd | 776 | register struct updevice *up = (struct updevice *)ui->ui_addr; |
3f3a34c3 | 777 | register struct buf *bp = uputab[ui->ui_unit].b_actf; |
89bd2f01 | 778 | register struct uba_ctlr *um = ui->ui_mi; |
3f3a34c3 BJ |
779 | register struct upst *st; |
780 | struct uba_regs *ubp = ui->ui_hd->uh_uba; | |
7bc8d985 | 781 | register int i; |
008c0481 | 782 | caddr_t addr; |
7bc8d985 | 783 | int reg, bit, byte, npf, mask, o, cmd, ubaddr; |
008c0481 BJ |
784 | int bn, cn, tn, sn; |
785 | ||
008c0481 | 786 | /* |
7bc8d985 BJ |
787 | * Npf is the number of sectors transferred before the sector |
788 | * containing the ECC error, and reg is the UBA register | |
789 | * mapping (the first part of) the transfer. | |
790 | * O is offset within a memory page of the first byte transferred. | |
008c0481 | 791 | */ |
7ed3da3d BJ |
792 | #ifndef NOBADSECT |
793 | if (flag == CONT) | |
794 | npf = bp->b_error; | |
795 | else | |
796 | #endif | |
797 | npf = btop((up->upwc * sizeof(short)) + bp->b_bcount); | |
b7333467 | 798 | reg = btop(um->um_ubinfo&0x3ffff) + npf; |
008c0481 | 799 | o = (int)bp->b_un.b_addr & PGOFSET; |
89bd2f01 | 800 | printf("up%d%c: soft ecc sn%d\n", dkunit(bp), |
0c48c799 | 801 | 'a'+(minor(bp->b_dev)&07), bp->b_blkno + npf); |
008c0481 | 802 | mask = up->upec2; |
299d67ed | 803 | #ifdef UPECCDEBUG |
8c58f40c BJ |
804 | printf("npf %d reg %x o %d mask %o pos %d\n", npf, reg, o, mask, |
805 | up->upec1); | |
299d67ed | 806 | #endif |
7ed3da3d BJ |
807 | bn = dkblock(bp); |
808 | st = &upst[ui->ui_type]; | |
809 | cn = bp->b_cylin; | |
810 | sn = bn%st->nspc + npf; | |
811 | tn = sn/st->nsect; | |
812 | sn %= st->nsect; | |
813 | cn += tn/st->ntrak; | |
814 | tn %= st->ntrak; | |
060afaf6 | 815 | ubapurge(um); |
7ed3da3d | 816 | um->um_tab.b_active=2; |
7bc8d985 | 817 | /* |
7ed3da3d | 818 | * action taken depends on the flag |
7bc8d985 | 819 | */ |
7ed3da3d BJ |
820 | switch(flag){ |
821 | case ECC: | |
822 | npf--; | |
823 | reg--; | |
824 | mask = up->upec2; | |
825 | printf("up%d%c: soft ecc sn%d\n", dkunit(bp), | |
826 | 'a'+(minor(bp->b_dev)&07), bp->b_blkno + npf); | |
827 | /* | |
828 | * Flush the buffered data path, and compute the | |
829 | * byte and bit position of the error. The variable i | |
830 | * is the byte offset in the transfer, the variable byte | |
831 | * is the offset from a page boundary in main memory. | |
832 | */ | |
833 | i = up->upec1 - 1; /* -1 makes 0 origin */ | |
834 | bit = i&07; | |
835 | i = (i&~07)>>3; | |
836 | byte = i + o; | |
837 | /* | |
838 | * Correct while possible bits remain of mask. Since mask | |
839 | * contains 11 bits, we continue while the bit offset is > -11. | |
840 | * Also watch out for end of this block and the end of the whole | |
841 | * transfer. | |
842 | */ | |
843 | while (i < 512 && (int)ptob(npf)+i < bp->b_bcount && bit > -11) { | |
844 | addr = ptob(ubp->uba_map[reg+btop(byte)].pg_pfnum)+ | |
845 | (byte & PGOFSET); | |
846 | #ifdef UPECCDEBUG | |
847 | printf("addr %x map reg %x\n", | |
848 | addr, *(int *)(&ubp->uba_map[reg+btop(byte)])); | |
849 | printf("old: %x, ", getmemc(addr)); | |
850 | #endif | |
851 | putmemc(addr, getmemc(addr)^(mask<<bit)); | |
299d67ed | 852 | #ifdef UPECCDEBUG |
7ed3da3d | 853 | printf("new: %x\n", getmemc(addr)); |
299d67ed | 854 | #endif |
7ed3da3d BJ |
855 | byte++; |
856 | i++; | |
857 | } | |
858 | if (up->upwc == 0) | |
859 | return (0); | |
860 | npf++; | |
861 | reg++; | |
862 | break; | |
863 | #ifndef NOBADSECT | |
864 | case BSE: | |
865 | /* | |
866 | * if not in bad sector table, return 0 | |
867 | */ | |
868 | if ((bn = isbad(&upbad[ui->ui_unit], cn, tn, sn)) < 0) | |
869 | return(0); | |
870 | /* | |
871 | * flag this one as bad | |
872 | */ | |
873 | bp->b_flags |= B_BAD; | |
874 | bp->b_error = npf + 1; | |
299d67ed | 875 | #ifdef UPECCDEBUG |
7ed3da3d BJ |
876 | printf("BSE: restart at %d\n",npf+1); |
877 | #endif | |
878 | bn = st->ncyl * st->nspc -st->nsect - 1 - bn; | |
879 | cn = bn / st->nspc; | |
880 | sn = bn % st->nspc; | |
881 | tn = sn / st->nsect; | |
882 | sn %= st->nsect; | |
883 | up->upwc = -(512 / sizeof (short)); | |
884 | #ifdef UPECCDEBUG | |
885 | printf("revector to cn %d tn %d sn %d\n", cn, tn, sn); | |
886 | #endif | |
887 | break; | |
888 | case CONT: | |
889 | #ifdef UPECCDEBUG | |
890 | printf("upecc, CONT: bn %d cn %d tn %d sn %d\n", bn, cn, tn, sn); | |
891 | #endif | |
892 | bp->b_flags &= ~B_BAD; | |
893 | up->upwc = -((bp->b_bcount - (int)ptob(npf)) / sizeof(short)); | |
894 | if (up->upwc == 0) | |
895 | return(0); | |
896 | break; | |
299d67ed | 897 | #endif |
008c0481 | 898 | } |
55de6ac9 BJ |
899 | if (up->upwc == 0) { |
900 | um->um_tab.b_active = 0; | |
008c0481 | 901 | return (0); |
55de6ac9 | 902 | } |
7ed3da3d | 903 | } |
7bc8d985 BJ |
904 | /* |
905 | * Have to continue the transfer... clear the drive, | |
906 | * and compute the position where the transfer is to continue. | |
907 | * We have completed npf+1 sectors of the transfer already; | |
908 | * restart at offset o of next sector (i.e. in UBA register reg+1). | |
909 | */ | |
2601dfbd BJ |
910 | #ifdef notdef |
911 | up->uper1 = 0; | |
912 | up->upcs1 |= UP_GO; | |
913 | #else | |
914 | up->upcs1 = UP_TRE|UP_IE|UP_DCLR|UP_GO; | |
008c0481 | 915 | up->updc = cn; |
7bc8d985 | 916 | up->upda = (tn << 8) | sn; |
7ed3da3d | 917 | ubaddr = (int)ptob(reg) + o; |
7bc8d985 BJ |
918 | up->upba = ubaddr; |
919 | cmd = (ubaddr >> 8) & 0x300; | |
7ed3da3d BJ |
920 | cmd |= ((bp->b_flags&B_READ)?UP_RCOM:UP_WCOM)|UP_IE|UP_GO; |
921 | um->um_tab.b_errcnt = 0; | |
7bc8d985 | 922 | up->upcs1 = cmd; |
2601dfbd | 923 | #endif |
008c0481 BJ |
924 | return (1); |
925 | } | |
977c2848 BJ |
926 | |
927 | /* | |
928 | * Reset driver after UBA init. | |
929 | * Cancel software state of all pending transfers | |
930 | * and restart all units and the controller. | |
931 | */ | |
3f3a34c3 | 932 | upreset(uban) |
f6d201ff | 933 | int uban; |
977c2848 | 934 | { |
89bd2f01 BJ |
935 | register struct uba_ctlr *um; |
936 | register struct uba_device *ui; | |
3f3a34c3 BJ |
937 | register sc21, unit; |
938 | ||
a3cb8f60 | 939 | for (sc21 = 0; sc21 < NSC; sc21++) { |
7e00c42b BJ |
940 | if ((um = upminfo[sc21]) == 0 || um->um_ubanum != uban || |
941 | um->um_alive == 0) | |
3f3a34c3 | 942 | continue; |
f6d201ff | 943 | printf(" sc%d", sc21); |
3f3a34c3 BJ |
944 | um->um_tab.b_active = 0; |
945 | um->um_tab.b_actf = um->um_tab.b_actl = 0; | |
f6d201ff | 946 | up_softc[sc21].sc_recal = 0; |
cc7ff771 | 947 | up_softc[sc21].sc_wticks = 0; |
b7333467 BJ |
948 | if (um->um_ubinfo) { |
949 | printf("<%d>", (um->um_ubinfo>>28)&0xf); | |
96b997eb | 950 | um->um_ubinfo = 0; |
3f3a34c3 | 951 | } |
299d67ed | 952 | ((struct updevice *)(um->um_addr))->upcs2 = UPCS2_CLR; |
3f3a34c3 BJ |
953 | for (unit = 0; unit < NUP; unit++) { |
954 | if ((ui = updinfo[unit]) == 0) | |
955 | continue; | |
f6d201ff | 956 | if (ui->ui_alive == 0 || ui->ui_mi != um) |
3f3a34c3 BJ |
957 | continue; |
958 | uputab[unit].b_active = 0; | |
959 | (void) upustart(ui); | |
960 | } | |
961 | (void) upstart(um); | |
977c2848 | 962 | } |
977c2848 | 963 | } |
6a81870e BJ |
964 | |
965 | /* | |
966 | * Wake up every second and if an interrupt is pending | |
967 | * but nothing has happened increment a counter. | |
f6d201ff | 968 | * If nothing happens for 20 seconds, reset the UNIBUS |
6a81870e BJ |
969 | * and begin anew. |
970 | */ | |
971 | upwatch() | |
972 | { | |
89bd2f01 | 973 | register struct uba_ctlr *um; |
3f3a34c3 | 974 | register sc21, unit; |
7e00c42b | 975 | register struct up_softc *sc; |
6a81870e | 976 | |
7780575a | 977 | timeout(upwatch, (caddr_t)0, hz); |
a3cb8f60 | 978 | for (sc21 = 0; sc21 < NSC; sc21++) { |
3f3a34c3 | 979 | um = upminfo[sc21]; |
7e00c42b BJ |
980 | if (um == 0 || um->um_alive == 0) |
981 | continue; | |
982 | sc = &up_softc[sc21]; | |
3f3a34c3 BJ |
983 | if (um->um_tab.b_active == 0) { |
984 | for (unit = 0; unit < NUP; unit++) | |
2601dfbd BJ |
985 | if (uputab[unit].b_active && |
986 | updinfo[unit]->ui_mi == um) | |
3f3a34c3 | 987 | goto active; |
7e00c42b | 988 | sc->sc_wticks = 0; |
3f3a34c3 BJ |
989 | continue; |
990 | } | |
f6d201ff | 991 | active: |
7e00c42b BJ |
992 | sc->sc_wticks++; |
993 | if (sc->sc_wticks >= 20) { | |
994 | sc->sc_wticks = 0; | |
f6d201ff | 995 | printf("sc%d: lost interrupt\n", sc21); |
a3cb8f60 | 996 | ubareset(um->um_ubanum); |
3f3a34c3 | 997 | } |
6a81870e BJ |
998 | } |
999 | } | |
0ff318b2 BJ |
1000 | |
1001 | #define DBSIZE 20 | |
1002 | ||
1003 | updump(dev) | |
1004 | dev_t dev; | |
1005 | { | |
2601dfbd | 1006 | struct updevice *upaddr; |
0ff318b2 | 1007 | char *start; |
a0eab615 | 1008 | int num, blk, unit; |
0ff318b2 | 1009 | struct size *sizes; |
3f3a34c3 | 1010 | register struct uba_regs *uba; |
89bd2f01 | 1011 | register struct uba_device *ui; |
0ff318b2 | 1012 | register short *rp; |
3f3a34c3 | 1013 | struct upst *st; |
cd8ce595 | 1014 | register int retry; |
7ed3da3d | 1015 | register int retry; |
0ff318b2 | 1016 | |
0ff318b2 | 1017 | unit = minor(dev) >> 3; |
0c48c799 BJ |
1018 | if (unit >= NUP) |
1019 | return (ENXIO); | |
7e00c42b | 1020 | #define phys(cast, addr) ((cast)((int)addr & 0x7fffffff)) |
89bd2f01 | 1021 | ui = phys(struct uba_device *, updinfo[unit]); |
0c48c799 BJ |
1022 | if (ui->ui_alive == 0) |
1023 | return (ENXIO); | |
3f3a34c3 | 1024 | uba = phys(struct uba_hd *, ui->ui_hd)->uh_physuba; |
89bd2f01 | 1025 | ubainit(uba); |
2601dfbd | 1026 | upaddr = (struct updevice *)ui->ui_physaddr; |
cd8ce595 | 1027 | DELAY(5000000); |
3f3a34c3 | 1028 | num = maxfree; |
0ff318b2 | 1029 | upaddr->upcs2 = unit; |
89bd2f01 | 1030 | DELAY(100); |
cd8ce595 SL |
1031 | upaddr->upcs1 = UP_DCLR|UP_GO; |
1032 | upaddr->upcs1 = UP_PRESET|UP_GO; | |
1033 | upaddr->upof = UPOF_FMT22; | |
1034 | retry = 0; | |
1035 | do { | |
1036 | DELAY(25); | |
1037 | if (++retry > 527) | |
1038 | break; | |
0599cbf1 | 1039 | } while ((upaddr->upds & UP_RDY) == 0); |
299d67ed | 1040 | if ((upaddr->upds & UPDS_DREADY) != UPDS_DREADY) |
0c48c799 | 1041 | return (EFAULT); |
cd8ce595 | 1042 | start = 0; |
7e00c42b | 1043 | st = &upst[ui->ui_type]; |
7ed3da3d | 1044 | start = 0; |
3f3a34c3 | 1045 | sizes = phys(struct size *, st->sizes); |
0c48c799 BJ |
1046 | if (dumplo < 0 || dumplo + num >= sizes[minor(dev)&07].nblocks) |
1047 | return (EINVAL); | |
0ff318b2 BJ |
1048 | while (num > 0) { |
1049 | register struct pte *io; | |
1050 | register int i; | |
1051 | int cn, sn, tn; | |
1052 | daddr_t bn; | |
1053 | ||
1054 | blk = num > DBSIZE ? DBSIZE : num; | |
3f3a34c3 | 1055 | io = uba->uba_map; |
0ff318b2 | 1056 | for (i = 0; i < blk; i++) |
89bd2f01 | 1057 | *(int *)io++ = (btop(start)+i) | (1<<21) | UBAMR_MRV; |
0ff318b2 BJ |
1058 | *(int *)io = 0; |
1059 | bn = dumplo + btop(start); | |
71236e46 BJ |
1060 | cn = bn/st->nspc + sizes[minor(dev)&07].cyloff; |
1061 | sn = bn%st->nspc; | |
1062 | tn = sn/st->nsect; | |
1063 | sn = sn%st->nsect; | |
0ff318b2 BJ |
1064 | upaddr->updc = cn; |
1065 | rp = (short *) &upaddr->upda; | |
1066 | *rp = (tn << 8) + sn; | |
1067 | *--rp = 0; | |
1068 | *--rp = -blk*NBPG / sizeof (short); | |
2601dfbd | 1069 | *--rp = UP_GO|UP_WCOM; |
cd8ce595 | 1070 | retry = 0; |
7ed3da3d | 1071 | retry = 0; |
0ff318b2 BJ |
1072 | do { |
1073 | DELAY(25); | |
cd8ce595 SL |
1074 | if (++retry > 527) |
1075 | break; | |
7ed3da3d BJ |
1076 | if (++retry > 527) |
1077 | break; | |
2601dfbd | 1078 | } while ((upaddr->upcs1 & UP_RDY) == 0); |
cd8ce595 | 1079 | if ((upaddr->upds & UPDS_DREADY) != UPDS_DREADY) { |
0599cbf1 | 1080 | printf("up%d: not ready", unit); |
cd8ce595 SL |
1081 | if ((upaddr->upds & UPDS_DREADY) != UPDS_DREADY) { |
1082 | printf("\n"); | |
1083 | return (EIO); | |
1084 | } | |
1085 | printf(" (flakey)\n"); | |
1086 | } | |
7ed3da3d BJ |
1087 | if ((upaddr->upds & UPDS_DREADY) != UPDS_DREADY) { |
1088 | printf("up%d: not ready", unit); | |
1089 | if ((upaddr->upds & UPDS_DREADY) != UPDS_DREADY) { | |
1090 | printf("\n"); | |
1091 | return (EIO); | |
1092 | } | |
1093 | printf(" (flakey)\n"); | |
1094 | } | |
299d67ed | 1095 | if (upaddr->upds&UPDS_ERR) |
0c48c799 | 1096 | return (EIO); |
0ff318b2 BJ |
1097 | start += blk*NBPG; |
1098 | num -= blk; | |
1099 | } | |
0ff318b2 BJ |
1100 | return (0); |
1101 | } | |
63c35a63 | 1102 | #endif |