Commit | Line | Data |
---|---|---|
66923854 | 1 | /* up.c 4.74 83/05/27 */ |
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 | 13 | */ |
961945a8 | 14 | #include "../machine/pte.h" |
008c0481 BJ |
15 | |
16 | #include "../h/param.h" | |
17 | #include "../h/systm.h" | |
41888f16 | 18 | #include "../h/dk.h" |
3b186c1c | 19 | #include "../h/dkbad.h" |
008c0481 BJ |
20 | #include "../h/buf.h" |
21 | #include "../h/conf.h" | |
22 | #include "../h/dir.h" | |
23 | #include "../h/user.h" | |
24 | #include "../h/map.h" | |
008c0481 | 25 | #include "../h/vm.h" |
0ff318b2 | 26 | #include "../h/cmap.h" |
740e4029 | 27 | #include "../h/uio.h" |
fb16fdca | 28 | #include "../h/kernel.h" |
7ed3da3d | 29 | #include "../h/dkbad.h" |
18eded4b BJ |
30 | #include "../vax/cpu.h" |
31 | #include "../vax/nexus.h" | |
32 | #include "../vaxuba/ubavar.h" | |
33 | #include "../vaxuba/ubareg.h" | |
34 | #include "../vaxuba/upreg.h" | |
008c0481 | 35 | |
3f3a34c3 BJ |
36 | struct up_softc { |
37 | int sc_softas; | |
71236e46 | 38 | int sc_ndrive; |
3f3a34c3 | 39 | int sc_wticks; |
736772ef | 40 | int sc_recal; |
a3cb8f60 | 41 | } up_softc[NSC]; |
008c0481 | 42 | |
3f3a34c3 | 43 | /* THIS SHOULD BE READ OFF THE PACK, PER DRIVE */ |
f4ce106d | 44 | struct size { |
008c0481 BJ |
45 | daddr_t nblocks; |
46 | int cyloff; | |
991f4b05 | 47 | } up9300_sizes[8] = { |
c94d7fe4 BJ |
48 | #ifdef ERNIE |
49 | 49324, 0, /* A=cyl 0 thru 26 */ | |
50 | #else | |
008c0481 | 51 | 15884, 0, /* A=cyl 0 thru 26 */ |
c94d7fe4 | 52 | #endif |
008c0481 | 53 | 33440, 27, /* B=cyl 27 thru 81 */ |
d1778415 | 54 | 495520, 0, /* C=cyl 0 thru 814 */ |
008c0481 BJ |
55 | 15884, 562, /* D=cyl 562 thru 588 */ |
56 | 55936, 589, /* E=cyl 589 thru 680 */ | |
0d728200 BJ |
57 | 81376, 681, /* F=cyl 681 thru 814 */ |
58 | 153728, 562, /* G=cyl 562 thru 814 */ | |
008c0481 | 59 | 291346, 82, /* H=cyl 82 thru 561 */ |
991f4b05 SL |
60 | }, up9766_sizes[8] = { |
61 | 15884, 0, /* A=cyl 0 thru 26 */ | |
62 | 33440, 27, /* B=cyl 27 thru 81 */ | |
63 | 500384, 0, /* C=cyl 0 thru 822 */ | |
64 | 15884, 562, /* D=cyl 562 thru 588 */ | |
65 | 55936, 589, /* E=cyl 589 thru 680 */ | |
66 | 86240, 681, /* F=cyl 681 thru 822 */ | |
67 | 158592, 562, /* G=cyl 562 thru 822 */ | |
68 | 291346, 82, /* H=cyl 82 thru 561 */ | |
69 | }, up160_sizes[8] = { | |
3f3a34c3 BJ |
70 | 15884, 0, /* A=cyl 0 thru 49 */ |
71 | 33440, 50, /* B=cyl 50 thru 154 */ | |
72 | 263360, 0, /* C=cyl 0 thru 822 */ | |
991f4b05 SL |
73 | 15884, 155, /* D=cyl 155 thru 204 */ |
74 | 55936, 205, /* E=cyl 205 thru 379 */ | |
75 | 141664, 380, /* F=cyl 380 thru 822 */ | |
76 | 213664, 155, /* G=cyl 155 thru 822 */ | |
3f3a34c3 | 77 | 0, 0, |
a1ef7a52 | 78 | }, upam_sizes[8] = { |
0cc9b5a9 BJ |
79 | 15884, 0, /* A=cyl 0 thru 31 */ |
80 | 33440, 32, /* B=cyl 32 thru 97 */ | |
81 | 524288, 0, /* C=cyl 0 thru 1023 */ | |
991f4b05 SL |
82 | 15884, 668, /* D=cyl 668 thru 699 */ |
83 | 55936, 700, /* E=cyl 700 thru 809 */ | |
84 | 109472, 810, /* F=cyl 810 thru 1023 */ | |
85 | 182176, 668, /* G=cyl 668 thru 1023 */ | |
0cc9b5a9 | 86 | 291346, 98, /* H=cyl 98 thru 667 */ |
008c0481 | 87 | }; |
3f3a34c3 | 88 | /* END OF STUFF WHICH SHOULD BE READ IN PER DISK */ |
008c0481 | 89 | |
cc7ff771 BJ |
90 | /* |
91 | * On a 780 upSDIST could be 2, but | |
92 | * in the interest of 750's... | |
93 | */ | |
94 | #define _upSDIST 3 /* 1.5 msec */ | |
3f3a34c3 BJ |
95 | #define _upRDIST 4 /* 2.0 msec */ |
96 | ||
97 | int upSDIST = _upSDIST; | |
98 | int upRDIST = _upRDIST; | |
99 | ||
71236e46 | 100 | int upprobe(), upslave(), upattach(), updgo(), upintr(); |
89bd2f01 BJ |
101 | struct uba_ctlr *upminfo[NSC]; |
102 | struct uba_device *updinfo[NUP]; | |
c10bcf0a BJ |
103 | #define UPIPUNITS 8 |
104 | struct uba_device *upip[NSC][UPIPUNITS]; /* fuji w/fixed head gives n,n+4 */ | |
d763a2b7 | 105 | |
71236e46 | 106 | u_short upstd[] = { 0776700, 0774400, 0776300, 0 }; |
0801d37f | 107 | struct uba_driver scdriver = |
71236e46 | 108 | { upprobe, upslave, upattach, updgo, upstd, "up", updinfo, "sc", upminfo }; |
3f3a34c3 | 109 | struct buf uputab[NUP]; |
7ed3da3d | 110 | char upinit[NUP]; |
3b186c1c | 111 | char upinit[NUP]; |
3f3a34c3 BJ |
112 | |
113 | struct upst { | |
114 | short nsect; | |
115 | short ntrak; | |
116 | short nspc; | |
117 | short ncyl; | |
118 | struct size *sizes; | |
119 | } upst[] = { | |
991f4b05 SL |
120 | 32, 19, 32*19, 815, up9300_sizes, /* 9300 */ |
121 | 32, 19, 32*19, 823, up9766_sizes, /* 9766 */ | |
122 | 32, 10, 32*10, 823, up160_sizes, /* fujitsu 160m */ | |
a1ef7a52 | 123 | 32, 16, 32*16, 1024, upam_sizes, /* ampex capricorn */ |
bb9acdbd | 124 | 0, 0, 0, 0, 0 |
3f3a34c3 | 125 | }; |
008c0481 | 126 | |
2601dfbd | 127 | u_char up_offset[16] = { |
7ed3da3d BJ |
128 | UPOF_P400, UPOF_M400, UPOF_P400, UPOF_M400, |
129 | UPOF_P800, UPOF_M800, UPOF_P800, UPOF_M800, | |
130 | UPOF_P1200, UPOF_M1200, UPOF_P1200, UPOF_M1200, | |
131 | 0, 0, 0, 0 | |
2601dfbd | 132 | }; |
008c0481 | 133 | |
0801d37f | 134 | struct buf rupbuf[NUP]; |
7ed3da3d BJ |
135 | struct buf bupbuf[NUP]; |
136 | struct dkbad upbad[NUP]; | |
3b186c1c SL |
137 | #ifndef NOBADSECT |
138 | struct buf bupbuf[NUP]; | |
139 | struct dkbad upbad[NUP]; | |
140 | #endif | |
008c0481 | 141 | |
008c0481 BJ |
142 | #define b_cylin b_resid |
143 | ||
008c0481 BJ |
144 | #ifdef INTRLVE |
145 | daddr_t dkblock(); | |
146 | #endif | |
3f3a34c3 BJ |
147 | |
148 | int upwstart, upwatch(); /* Have started guardian */ | |
7e00c42b | 149 | int upseek; |
f88f8fdb | 150 | int upwaitdry; |
3f3a34c3 BJ |
151 | |
152 | /*ARGSUSED*/ | |
71236e46 | 153 | upprobe(reg) |
3f3a34c3 | 154 | caddr_t reg; |
008c0481 | 155 | { |
d763a2b7 BJ |
156 | register int br, cvec; |
157 | ||
71236e46 | 158 | #ifdef lint |
66923854 | 159 | br = 0; cvec = br; br = cvec; upintr(0); |
71236e46 | 160 | #endif |
2601dfbd | 161 | ((struct updevice *)reg)->upcs1 = UP_IE|UP_RDY; |
71236e46 | 162 | DELAY(10); |
2601dfbd | 163 | ((struct updevice *)reg)->upcs1 = 0; |
9c0adba0 | 164 | return (sizeof (struct updevice)); |
3f3a34c3 BJ |
165 | } |
166 | ||
71236e46 | 167 | upslave(ui, reg) |
89bd2f01 | 168 | struct uba_device *ui; |
3f3a34c3 BJ |
169 | caddr_t reg; |
170 | { | |
2601dfbd | 171 | register struct updevice *upaddr = (struct updevice *)reg; |
3f3a34c3 BJ |
172 | |
173 | upaddr->upcs1 = 0; /* conservative */ | |
71236e46 | 174 | upaddr->upcs2 = ui->ui_slave; |
c224ab94 | 175 | upaddr->upcs1 = UP_NOP|UP_GO; |
7ed3da3d | 176 | upaddr->upcs1 = UP_NOP|UP_GO; |
299d67ed | 177 | if (upaddr->upcs2&UPCS2_NED) { |
2601dfbd | 178 | upaddr->upcs1 = UP_DCLR|UP_GO; |
3f3a34c3 BJ |
179 | return (0); |
180 | } | |
71236e46 BJ |
181 | return (1); |
182 | } | |
183 | ||
184 | upattach(ui) | |
89bd2f01 | 185 | register struct uba_device *ui; |
71236e46 BJ |
186 | { |
187 | ||
6a81870e | 188 | if (upwstart == 0) { |
7780575a | 189 | timeout(upwatch, (caddr_t)0, hz); |
6a81870e BJ |
190 | upwstart++; |
191 | } | |
b7333467 BJ |
192 | if (ui->ui_dk >= 0) |
193 | dk_mspw[ui->ui_dk] = .0000020345; | |
71236e46 BJ |
194 | upip[ui->ui_ctlr][ui->ui_slave] = ui; |
195 | up_softc[ui->ui_ctlr].sc_ndrive++; | |
bb9acdbd SL |
196 | ui->ui_type = upmaptype(ui); |
197 | } | |
198 | ||
199 | upmaptype(ui) | |
200 | register struct uba_device *ui; | |
201 | { | |
202 | register struct updevice *upaddr = (struct updevice *)ui->ui_addr; | |
203 | int type = ui->ui_type; | |
204 | register struct upst *st; | |
205 | ||
2601dfbd BJ |
206 | upaddr->upcs1 = 0; |
207 | upaddr->upcs2 = ui->ui_slave; | |
26e15512 | 208 | upaddr->uphr = UPHR_MAXTRAK; |
bb9acdbd SL |
209 | for (st = upst; st->nsect != 0; st++) |
210 | if (upaddr->uphr == st->ntrak - 1) { | |
211 | type = st - upst; | |
212 | break; | |
213 | } | |
214 | if (st->nsect == 0) | |
215 | printf("up%d: uphr=%x\n", ui->ui_slave, upaddr->uphr); | |
216 | if (type == 0) { | |
99a8f9c5 HS |
217 | upaddr->uphr = UPHR_MAXCYL; |
218 | if (upaddr->uphr == 822) | |
bb9acdbd | 219 | type++; |
99a8f9c5 | 220 | } |
26e15512 | 221 | upaddr->upcs2 = UPCS2_CLR; |
bb9acdbd | 222 | return (type); |
3f3a34c3 BJ |
223 | } |
224 | ||
3b186c1c SL |
225 | upopen(dev) |
226 | dev_t dev; | |
227 | { | |
228 | register int unit = minor(dev) >> 3; | |
229 | register struct uba_device *ui; | |
230 | ||
231 | if (unit >= NUP || (ui = updinfo[unit]) == 0 || ui->ui_alive == 0) | |
232 | return (ENXIO); | |
233 | return (0); | |
234 | } | |
235 | ||
3f3a34c3 BJ |
236 | upstrategy(bp) |
237 | register struct buf *bp; | |
238 | { | |
89bd2f01 | 239 | register struct uba_device *ui; |
3f3a34c3 BJ |
240 | register struct upst *st; |
241 | register int unit; | |
7e00c42b | 242 | register struct buf *dp; |
3f3a34c3 | 243 | int xunit = minor(bp->b_dev) & 07; |
7e00c42b | 244 | long bn, sz; |
3f3a34c3 | 245 | |
7e00c42b | 246 | sz = (bp->b_bcount+511) >> 9; |
008c0481 | 247 | unit = dkunit(bp); |
3f3a34c3 BJ |
248 | if (unit >= NUP) |
249 | goto bad; | |
250 | ui = updinfo[unit]; | |
251 | if (ui == 0 || ui->ui_alive == 0) | |
252 | goto bad; | |
253 | st = &upst[ui->ui_type]; | |
254 | if (bp->b_blkno < 0 || | |
255 | (bn = dkblock(bp))+sz > st->sizes[xunit].nblocks) | |
256 | goto bad; | |
257 | bp->b_cylin = bn/st->nspc + st->sizes[xunit].cyloff; | |
0cc9b5a9 | 258 | (void) spl5(); |
7e00c42b BJ |
259 | dp = &uputab[ui->ui_unit]; |
260 | disksort(dp, bp); | |
261 | if (dp->b_active == 0) { | |
3f3a34c3 BJ |
262 | (void) upustart(ui); |
263 | bp = &ui->ui_mi->um_tab; | |
264 | if (bp->b_actf && bp->b_active == 0) | |
265 | (void) upstart(ui->ui_mi); | |
008c0481 | 266 | } |
0cc9b5a9 | 267 | (void) spl0(); |
3f3a34c3 BJ |
268 | return; |
269 | ||
270 | bad: | |
271 | bp->b_flags |= B_ERROR; | |
272 | iodone(bp); | |
273 | return; | |
008c0481 BJ |
274 | } |
275 | ||
736772ef BJ |
276 | /* |
277 | * Unit start routine. | |
278 | * Seek the drive to be where the data is | |
279 | * and then generate another interrupt | |
280 | * to actually start the transfer. | |
281 | * If there is only one drive on the controller, | |
282 | * or we are very close to the data, don't | |
283 | * bother with the search. If called after | |
284 | * searching once, don't bother to look where | |
285 | * we are, just queue for transfer (to avoid | |
286 | * positioning forever without transferrring.) | |
287 | */ | |
3f3a34c3 | 288 | upustart(ui) |
89bd2f01 | 289 | register struct uba_device *ui; |
008c0481 BJ |
290 | { |
291 | register struct buf *bp, *dp; | |
89bd2f01 | 292 | register struct uba_ctlr *um; |
2601dfbd | 293 | register struct updevice *upaddr; |
3f3a34c3 | 294 | register struct upst *st; |
008c0481 | 295 | daddr_t bn; |
736772ef | 296 | int sn, csn; |
71236e46 BJ |
297 | /* |
298 | * The SC21 cancels commands if you just say | |
2601dfbd | 299 | * cs1 = UP_IE |
71236e46 BJ |
300 | * so we are cautious about handling of cs1. |
301 | * Also don't bother to clear as bits other than in upintr(). | |
302 | */ | |
736772ef BJ |
303 | int didie = 0; |
304 | ||
305 | if (ui == 0) | |
306 | return (0); | |
89bd2f01 | 307 | um = ui->ui_mi; |
3f3a34c3 BJ |
308 | dk_busy &= ~(1<<ui->ui_dk); |
309 | dp = &uputab[ui->ui_unit]; | |
7bc8d985 | 310 | if ((bp = dp->b_actf) == NULL) |
eb891eaa | 311 | goto out; |
736772ef BJ |
312 | /* |
313 | * If the controller is active, just remember | |
314 | * that this device would like to be positioned... | |
315 | * if we tried to position now we would confuse the SC21. | |
316 | */ | |
3f3a34c3 | 317 | if (um->um_tab.b_active) { |
d763a2b7 | 318 | up_softc[um->um_ctlr].sc_softas |= 1<<ui->ui_slave; |
2a3b9a7f BJ |
319 | return (0); |
320 | } | |
736772ef BJ |
321 | /* |
322 | * If we have already positioned this drive, | |
323 | * then just put it on the ready queue. | |
324 | */ | |
a3f430e0 BJ |
325 | if (dp->b_active) |
326 | goto done; | |
327 | dp->b_active = 1; | |
2601dfbd | 328 | upaddr = (struct updevice *)um->um_addr; |
3f3a34c3 | 329 | upaddr->upcs2 = ui->ui_slave; |
736772ef BJ |
330 | /* |
331 | * If drive has just come up, | |
332 | * setup the pack. | |
333 | */ | |
7ed3da3d BJ |
334 | if ((upaddr->upds & UPDS_VV) == 0 || upinit[ui->ui_unit] == 0) { |
335 | #ifndef NOBADSECT | |
336 | struct buf *bbp = &bupbuf[ui->ui_unit]; | |
337 | #endif | |
71236e46 | 338 | /* SHOULD WARN SYSTEM THAT THIS HAPPENED */ |
7ed3da3d | 339 | upinit[ui->ui_unit] = 1; |
3b186c1c | 340 | upinit[ui->ui_unit] = 1; |
2601dfbd BJ |
341 | upaddr->upcs1 = UP_IE|UP_DCLR|UP_GO; |
342 | upaddr->upcs1 = UP_IE|UP_PRESET|UP_GO; | |
299d67ed | 343 | upaddr->upof = UPOF_FMT22; |
eb891eaa | 344 | didie = 1; |
3b186c1c SL |
345 | st = &upst[ui->ui_type]; |
346 | bbp->b_flags = B_READ|B_BUSY; | |
347 | bbp->b_dev = bp->b_dev; | |
348 | bbp->b_bcount = 512; | |
349 | bbp->b_un.b_addr = (caddr_t)&upbad[ui->ui_unit]; | |
350 | bbp->b_blkno = st->ncyl * st->nspc - st->nsect; | |
351 | bbp->b_cylin = st->ncyl - 1; | |
352 | dp->b_actf = bbp; | |
353 | bbp->av_forw = bp; | |
354 | bp = bbp; | |
7ed3da3d BJ |
355 | #ifndef NOBADSECT |
356 | st = &upst[ui->ui_type]; | |
357 | bbp->b_flags = B_READ|B_BUSY; | |
358 | bbp->b_dev = bp->b_dev; | |
359 | bbp->b_bcount = 512; | |
360 | bbp->b_un.b_addr = (caddr_t)&upbad[ui->ui_unit]; | |
361 | bbp->b_blkno = st->ncyl * st->nspc - st->nsect; | |
362 | bbp->b_cylin = st->ncyl - 1; | |
363 | dp->b_actf = bbp; | |
364 | bbp->av_forw = bp; | |
365 | bp = bbp; | |
366 | #endif | |
008c0481 | 367 | } |
736772ef BJ |
368 | /* |
369 | * If drive is offline, forget about positioning. | |
370 | */ | |
299d67ed | 371 | if ((upaddr->upds & (UPDS_DPR|UPDS_MOL)) != (UPDS_DPR|UPDS_MOL)) |
2a3b9a7f | 372 | goto done; |
736772ef BJ |
373 | /* |
374 | * If there is only one drive, | |
375 | * dont bother searching. | |
376 | */ | |
71236e46 BJ |
377 | if (up_softc[um->um_ctlr].sc_ndrive == 1) |
378 | goto done; | |
736772ef BJ |
379 | /* |
380 | * Figure out where this transfer is going to | |
381 | * and see if we are close enough to justify not searching. | |
382 | */ | |
3f3a34c3 | 383 | st = &upst[ui->ui_type]; |
008c0481 | 384 | bn = dkblock(bp); |
3f3a34c3 BJ |
385 | sn = bn%st->nspc; |
386 | sn = (sn + st->nsect - upSDIST) % st->nsect; | |
736772ef | 387 | if (bp->b_cylin - upaddr->updc) |
7bc8d985 | 388 | goto search; /* Not on-cylinder */ |
2a3b9a7f BJ |
389 | else if (upseek) |
390 | goto done; /* Ok just to be on-cylinder */ | |
008c0481 | 391 | csn = (upaddr->upla>>6) - sn - 1; |
7bc8d985 | 392 | if (csn < 0) |
3f3a34c3 BJ |
393 | csn += st->nsect; |
394 | if (csn > st->nsect - upRDIST) | |
008c0481 | 395 | goto done; |
008c0481 | 396 | search: |
736772ef BJ |
397 | upaddr->updc = bp->b_cylin; |
398 | /* | |
399 | * Not on cylinder at correct position, | |
400 | * seek/search. | |
401 | */ | |
2a3b9a7f | 402 | if (upseek) |
2601dfbd | 403 | upaddr->upcs1 = UP_IE|UP_SEEK|UP_GO; |
7e00c42b | 404 | else { |
2a3b9a7f | 405 | upaddr->upda = sn; |
2601dfbd | 406 | upaddr->upcs1 = UP_IE|UP_SEARCH|UP_GO; |
2a3b9a7f | 407 | } |
eb891eaa | 408 | didie = 1; |
736772ef BJ |
409 | /* |
410 | * Mark unit busy for iostat. | |
411 | */ | |
3f3a34c3 BJ |
412 | if (ui->ui_dk >= 0) { |
413 | dk_busy |= 1<<ui->ui_dk; | |
414 | dk_seek[ui->ui_dk]++; | |
008c0481 | 415 | } |
eb891eaa | 416 | goto out; |
008c0481 | 417 | done: |
736772ef BJ |
418 | /* |
419 | * Device is ready to go. | |
420 | * Put it on the ready queue for the controller | |
421 | * (unless its already there.) | |
422 | */ | |
2601dfbd BJ |
423 | if (dp->b_active != 2) { |
424 | dp->b_forw = NULL; | |
425 | if (um->um_tab.b_actf == NULL) | |
426 | um->um_tab.b_actf = dp; | |
427 | else | |
428 | um->um_tab.b_actl->b_forw = dp; | |
429 | um->um_tab.b_actl = dp; | |
430 | dp->b_active = 2; | |
431 | } | |
eb891eaa BJ |
432 | out: |
433 | return (didie); | |
008c0481 BJ |
434 | } |
435 | ||
736772ef BJ |
436 | /* |
437 | * Start up a transfer on a drive. | |
438 | */ | |
3f3a34c3 | 439 | upstart(um) |
89bd2f01 | 440 | register struct uba_ctlr *um; |
008c0481 BJ |
441 | { |
442 | register struct buf *bp, *dp; | |
89bd2f01 | 443 | register struct uba_device *ui; |
2601dfbd | 444 | register struct updevice *upaddr; |
7e00c42b | 445 | struct upst *st; |
008c0481 | 446 | daddr_t bn; |
f88f8fdb | 447 | int dn, sn, tn, cmd, waitdry; |
008c0481 | 448 | |
008c0481 | 449 | loop: |
736772ef BJ |
450 | /* |
451 | * Pull a request off the controller queue | |
452 | */ | |
3f3a34c3 | 453 | if ((dp = um->um_tab.b_actf) == NULL) |
eb891eaa | 454 | return (0); |
008c0481 | 455 | if ((bp = dp->b_actf) == NULL) { |
3f3a34c3 | 456 | um->um_tab.b_actf = dp->b_forw; |
008c0481 BJ |
457 | goto loop; |
458 | } | |
736772ef BJ |
459 | /* |
460 | * Mark controller busy, and | |
461 | * determine destination of this request. | |
462 | */ | |
3f3a34c3 BJ |
463 | um->um_tab.b_active++; |
464 | ui = updinfo[dkunit(bp)]; | |
008c0481 | 465 | bn = dkblock(bp); |
3f3a34c3 BJ |
466 | dn = ui->ui_slave; |
467 | st = &upst[ui->ui_type]; | |
468 | sn = bn%st->nspc; | |
469 | tn = sn/st->nsect; | |
470 | sn %= st->nsect; | |
2601dfbd | 471 | upaddr = (struct updevice *)ui->ui_addr; |
736772ef BJ |
472 | /* |
473 | * Select drive if not selected already. | |
474 | */ | |
475 | if ((upaddr->upcs2&07) != dn) | |
476 | upaddr->upcs2 = dn; | |
477 | /* | |
478 | * Check that it is ready and online | |
479 | */ | |
f88f8fdb | 480 | waitdry = 0; |
299d67ed | 481 | while ((upaddr->upds&UPDS_DRY) == 0) { |
7ed3da3d | 482 | printf("up%d: ds wait ds=%o\n",dkunit(bp),upaddr->upds); |
ac1276f8 | 483 | printf("up%d: ds wait ds=%o\n",dkunit(bp),upaddr->upds); |
f88f8fdb BJ |
484 | if (++waitdry > 512) |
485 | break; | |
486 | upwaitdry++; | |
487 | } | |
299d67ed | 488 | if ((upaddr->upds & UPDS_DREADY) != UPDS_DREADY) { |
f6d201ff | 489 | printf("up%d: not ready", dkunit(bp)); |
299d67ed | 490 | if ((upaddr->upds & UPDS_DREADY) != UPDS_DREADY) { |
71236e46 | 491 | printf("\n"); |
3f3a34c3 BJ |
492 | um->um_tab.b_active = 0; |
493 | um->um_tab.b_errcnt = 0; | |
88253fd2 BJ |
494 | dp->b_actf = bp->av_forw; |
495 | dp->b_active = 0; | |
496 | bp->b_flags |= B_ERROR; | |
497 | iodone(bp); | |
88253fd2 BJ |
498 | goto loop; |
499 | } | |
736772ef BJ |
500 | /* |
501 | * Oh, well, sometimes this | |
502 | * happens, for reasons unknown. | |
503 | */ | |
2601dfbd | 504 | printf(" (flakey)\n"); |
008c0481 | 505 | } |
736772ef BJ |
506 | /* |
507 | * Setup for the transfer, and get in the | |
508 | * UNIBUS adaptor queue. | |
509 | */ | |
5aa9d5ea | 510 | upaddr->updc = bp->b_cylin; |
008c0481 | 511 | upaddr->upda = (tn << 8) + sn; |
008c0481 BJ |
512 | upaddr->upwc = -bp->b_bcount / sizeof (short); |
513 | if (bp->b_flags & B_READ) | |
2601dfbd | 514 | cmd = UP_IE|UP_RCOM|UP_GO; |
008c0481 | 515 | else |
2601dfbd | 516 | cmd = UP_IE|UP_WCOM|UP_GO; |
b7333467 | 517 | um->um_cmd = cmd; |
a0eab615 | 518 | (void) ubago(ui); |
eb891eaa | 519 | return (1); |
008c0481 BJ |
520 | } |
521 | ||
736772ef BJ |
522 | /* |
523 | * Now all ready to go, stuff the registers. | |
524 | */ | |
b7333467 | 525 | updgo(um) |
89bd2f01 | 526 | struct uba_ctlr *um; |
3f3a34c3 | 527 | { |
2601dfbd | 528 | register struct updevice *upaddr = (struct updevice *)um->um_addr; |
7e00c42b | 529 | |
de59ccc2 | 530 | um->um_tab.b_active = 2; /* should now be 2 */ |
b7333467 BJ |
531 | upaddr->upba = um->um_ubinfo; |
532 | upaddr->upcs1 = um->um_cmd|((um->um_ubinfo>>8)&0x300); | |
3f3a34c3 BJ |
533 | } |
534 | ||
736772ef BJ |
535 | /* |
536 | * Handle a disk interrupt. | |
537 | */ | |
443c8066 | 538 | upintr(sc21) |
3f3a34c3 | 539 | register sc21; |
008c0481 BJ |
540 | { |
541 | register struct buf *bp, *dp; | |
89bd2f01 BJ |
542 | register struct uba_ctlr *um = upminfo[sc21]; |
543 | register struct uba_device *ui; | |
2601dfbd | 544 | register struct updevice *upaddr = (struct updevice *)um->um_addr; |
008c0481 | 545 | register unit; |
7e00c42b | 546 | struct up_softc *sc = &up_softc[um->um_ctlr]; |
71236e46 | 547 | int as = (upaddr->upas & 0377) | sc->sc_softas; |
f88f8fdb | 548 | int needie = 1, waitdry; |
008c0481 | 549 | |
7e00c42b | 550 | sc->sc_wticks = 0; |
71236e46 | 551 | sc->sc_softas = 0; |
736772ef BJ |
552 | /* |
553 | * If controller wasn't transferring, then this is an | |
554 | * interrupt for attention status on seeking drives. | |
555 | * Just service them. | |
556 | */ | |
cc7ff771 | 557 | if (um->um_tab.b_active != 2 && !sc->sc_recal) { |
736772ef BJ |
558 | if (upaddr->upcs1 & UP_TRE) |
559 | upaddr->upcs1 = UP_TRE; | |
560 | goto doattn; | |
561 | } | |
de59ccc2 | 562 | um->um_tab.b_active = 1; |
7ed3da3d | 563 | um->um_tab.b_active = 1; |
736772ef BJ |
564 | /* |
565 | * Get device and block structures, and a pointer | |
89bd2f01 | 566 | * to the uba_device for the drive. Select the drive. |
736772ef BJ |
567 | */ |
568 | dp = um->um_tab.b_actf; | |
569 | bp = dp->b_actf; | |
570 | ui = updinfo[dkunit(bp)]; | |
571 | dk_busy &= ~(1 << ui->ui_dk); | |
572 | if ((upaddr->upcs2&07) != ui->ui_slave) | |
3f3a34c3 | 573 | upaddr->upcs2 = ui->ui_slave; |
3b186c1c SL |
574 | if (bp->b_flags&B_BAD) { |
575 | if (upecc(ui, CONT)) | |
576 | return; | |
577 | } | |
7ed3da3d BJ |
578 | #ifndef NOBADSECT |
579 | if (bp->b_flags&B_BAD) { | |
580 | if (upecc(ui, CONT)) | |
581 | return; | |
582 | } | |
583 | #endif | |
736772ef BJ |
584 | /* |
585 | * Check for and process errors on | |
586 | * either the drive or the controller. | |
587 | */ | |
299d67ed | 588 | if ((upaddr->upds&UPDS_ERR) || (upaddr->upcs1&UP_TRE)) { |
f88f8fdb | 589 | waitdry = 0; |
299d67ed | 590 | while ((upaddr->upds & UPDS_DRY) == 0) { |
f88f8fdb BJ |
591 | if (++waitdry > 512) |
592 | break; | |
593 | upwaitdry++; | |
594 | } | |
299d67ed | 595 | if (upaddr->uper1&UPER1_WLE) { |
736772ef BJ |
596 | /* |
597 | * Give up on write locked devices | |
598 | * immediately. | |
599 | */ | |
f6d201ff | 600 | printf("up%d: write locked\n", dkunit(bp)); |
736772ef BJ |
601 | bp->b_flags |= B_ERROR; |
602 | } else if (++um->um_tab.b_errcnt > 27) { | |
603 | /* | |
604 | * After 28 retries (16 without offset, and | |
605 | * 12 with offset positioning) give up. | |
45663547 HS |
606 | * If the error was header CRC, the header is |
607 | * screwed up, and the sector may in fact exist | |
608 | * in the bad sector table, better check... | |
736772ef | 609 | */ |
45663547 HS |
610 | if (upaddr->uper1&UPER1_HCRC) { |
611 | if (upecc(ui, BSE)) | |
612 | return; | |
613 | } | |
3b186c1c | 614 | hard: |
7ed3da3d | 615 | hard: |
f6d201ff | 616 | harderr(bp, "up"); |
7ed3da3d BJ |
617 | printf("cn=%d tn=%d sn=%d cs2=%b er1=%b er2=%b\n", |
618 | upaddr->updc, ((upaddr->upda)>>8)&077, | |
619 | (upaddr->upda)&037, | |
620 | upaddr->upcs2, UPCS2_BITS, | |
621 | upaddr->uper1, UPER1_BITS, | |
622 | upaddr->uper2, UPER2_BITS); | |
736772ef | 623 | bp->b_flags |= B_ERROR; |
7ed3da3d | 624 | } else if (upaddr->uper2 & UPER2_BSE) { |
7ed3da3d BJ |
625 | if (upecc(ui, BSE)) |
626 | return; | |
627 | else | |
3b186c1c SL |
628 | goto hard; |
629 | } else if (upaddr->uper2 & UPER2_BSE) { | |
630 | #ifndef NOBADSECT | |
631 | if (upecc(ui, BSE)) | |
632 | return; | |
633 | else | |
7ed3da3d BJ |
634 | #endif |
635 | goto hard; | |
736772ef BJ |
636 | } else { |
637 | /* | |
638 | * Retriable error. | |
639 | * If a soft ecc, correct it (continuing | |
640 | * by returning if necessary. | |
641 | * Otherwise fall through and retry the transfer | |
642 | */ | |
55de6ac9 | 643 | if ((upaddr->uper1&(UPER1_DCK|UPER1_ECH))==UPER1_DCK) { |
7ed3da3d | 644 | if (upecc(ui, ECC)) |
2601dfbd | 645 | return; |
55de6ac9 BJ |
646 | } else |
647 | um->um_tab.b_active = 0; /* force retry */ | |
7ed3da3d BJ |
648 | } else |
649 | um->um_tab.b_active = 0; /* force retry */ | |
736772ef BJ |
650 | } |
651 | /* | |
652 | * Clear drive error and, every eight attempts, | |
653 | * (starting with the fourth) | |
654 | * recalibrate to clear the slate. | |
655 | */ | |
656 | upaddr->upcs1 = UP_TRE|UP_IE|UP_DCLR|UP_GO; | |
657 | needie = 0; | |
fc4d0a69 | 658 | if ((um->um_tab.b_errcnt&07) == 4 && um->um_tab.b_active == 0) { |
736772ef | 659 | upaddr->upcs1 = UP_RECAL|UP_IE|UP_GO; |
a6442a2f BJ |
660 | sc->sc_recal = 0; |
661 | goto nextrecal; | |
736772ef BJ |
662 | } |
663 | } | |
664 | /* | |
a6442a2f BJ |
665 | * Advance recalibration finite state machine |
666 | * if recalibrate in progress, through | |
667 | * RECAL | |
668 | * SEEK | |
669 | * OFFSET (optional) | |
670 | * RETRY | |
736772ef | 671 | */ |
a6442a2f BJ |
672 | switch (sc->sc_recal) { |
673 | ||
674 | case 1: | |
675 | upaddr->updc = bp->b_cylin; | |
676 | upaddr->upcs1 = UP_SEEK|UP_IE|UP_GO; | |
677 | goto nextrecal; | |
678 | case 2: | |
679 | if (um->um_tab.b_errcnt < 16 || (bp->b_flags&B_READ) == 0) | |
680 | goto donerecal; | |
299d67ed | 681 | upaddr->upof = up_offset[um->um_tab.b_errcnt & 017] | UPOF_FMT22; |
a6442a2f BJ |
682 | upaddr->upcs1 = UP_IE|UP_OFFSET|UP_GO; |
683 | goto nextrecal; | |
684 | nextrecal: | |
685 | sc->sc_recal++; | |
686 | um->um_tab.b_active = 1; | |
687 | return; | |
688 | donerecal: | |
689 | case 3: | |
736772ef | 690 | sc->sc_recal = 0; |
a6442a2f BJ |
691 | um->um_tab.b_active = 0; |
692 | break; | |
736772ef BJ |
693 | } |
694 | /* | |
695 | * If still ``active'', then don't need any more retries. | |
696 | */ | |
697 | if (um->um_tab.b_active) { | |
698 | /* | |
699 | * If we were offset positioning, | |
700 | * return to centerline. | |
701 | */ | |
702 | if (um->um_tab.b_errcnt >= 16) { | |
299d67ed | 703 | upaddr->upof = UPOF_FMT22; |
736772ef | 704 | upaddr->upcs1 = UP_RTC|UP_GO|UP_IE; |
299d67ed | 705 | while (upaddr->upds & UPDS_PIP) |
736772ef | 706 | DELAY(25); |
eb891eaa | 707 | needie = 0; |
008c0481 | 708 | } |
736772ef BJ |
709 | um->um_tab.b_active = 0; |
710 | um->um_tab.b_errcnt = 0; | |
711 | um->um_tab.b_actf = dp->b_forw; | |
712 | dp->b_active = 0; | |
713 | dp->b_errcnt = 0; | |
714 | dp->b_actf = bp->av_forw; | |
715 | bp->b_resid = (-upaddr->upwc * sizeof(short)); | |
716 | iodone(bp); | |
717 | /* | |
718 | * If this unit has more work to do, | |
719 | * then start it up right away. | |
720 | */ | |
721 | if (dp->b_actf) | |
722 | if (upustart(ui)) | |
eb891eaa | 723 | needie = 0; |
008c0481 | 724 | } |
736772ef | 725 | as &= ~(1<<ui->ui_slave); |
8c58f40c BJ |
726 | /* |
727 | * Release unibus resources and flush data paths. | |
728 | */ | |
729 | ubadone(um); | |
736772ef BJ |
730 | doattn: |
731 | /* | |
732 | * Process other units which need attention. | |
733 | * For each unit which needs attention, call | |
734 | * the unit start routine to place the slave | |
735 | * on the controller device queue. | |
736 | */ | |
a6442a2f BJ |
737 | while (unit = ffs(as)) { |
738 | unit--; /* was 1 origin */ | |
739 | as &= ~(1<<unit); | |
740 | upaddr->upas = 1<<unit; | |
c10bcf0a | 741 | if (unit < UPIPUNITS && upustart(upip[sc21][unit])) |
a6442a2f BJ |
742 | needie = 0; |
743 | } | |
736772ef BJ |
744 | /* |
745 | * If the controller is not transferring, but | |
746 | * there are devices ready to transfer, start | |
747 | * the controller. | |
748 | */ | |
3f3a34c3 BJ |
749 | if (um->um_tab.b_actf && um->um_tab.b_active == 0) |
750 | if (upstart(um)) | |
eb891eaa | 751 | needie = 0; |
2a3b9a7f | 752 | if (needie) |
2601dfbd | 753 | upaddr->upcs1 = UP_IE; |
008c0481 BJ |
754 | } |
755 | ||
740e4029 | 756 | upread(dev, uio) |
0801d37f | 757 | dev_t dev; |
740e4029 | 758 | struct uio *uio; |
008c0481 | 759 | { |
0801d37f | 760 | register int unit = minor(dev) >> 3; |
7e00c42b | 761 | |
0801d37f | 762 | if (unit >= NUP) |
0cd5eac7 BJ |
763 | return (ENXIO); |
764 | return (physio(upstrategy, &rupbuf[unit], dev, B_READ, minphys, uio)); | |
008c0481 BJ |
765 | } |
766 | ||
002227dd | 767 | upwrite(dev, uio) |
0801d37f | 768 | dev_t dev; |
002227dd | 769 | struct uio *uio; |
008c0481 | 770 | { |
0801d37f | 771 | register int unit = minor(dev) >> 3; |
7e00c42b | 772 | |
0801d37f | 773 | if (unit >= NUP) |
0cd5eac7 BJ |
774 | return (ENXIO); |
775 | return (physio(upstrategy, &rupbuf[unit], dev, B_WRITE, minphys, uio)); | |
008c0481 BJ |
776 | } |
777 | ||
7bc8d985 BJ |
778 | /* |
779 | * Correct an ECC error, and restart the i/o to complete | |
780 | * the transfer if necessary. This is quite complicated because | |
781 | * the transfer may be going to an odd memory address base and/or | |
782 | * across a page boundary. | |
783 | */ | |
7ed3da3d | 784 | upecc(ui, flag) |
89bd2f01 | 785 | register struct uba_device *ui; |
7ed3da3d | 786 | int flag; |
3b186c1c | 787 | int flag; |
008c0481 | 788 | { |
2601dfbd | 789 | register struct updevice *up = (struct updevice *)ui->ui_addr; |
3f3a34c3 | 790 | register struct buf *bp = uputab[ui->ui_unit].b_actf; |
89bd2f01 | 791 | register struct uba_ctlr *um = ui->ui_mi; |
3f3a34c3 BJ |
792 | register struct upst *st; |
793 | struct uba_regs *ubp = ui->ui_hd->uh_uba; | |
7bc8d985 | 794 | register int i; |
008c0481 | 795 | caddr_t addr; |
7bc8d985 | 796 | int reg, bit, byte, npf, mask, o, cmd, ubaddr; |
008c0481 BJ |
797 | int bn, cn, tn, sn; |
798 | ||
008c0481 | 799 | /* |
7bc8d985 BJ |
800 | * Npf is the number of sectors transferred before the sector |
801 | * containing the ECC error, and reg is the UBA register | |
802 | * mapping (the first part of) the transfer. | |
803 | * O is offset within a memory page of the first byte transferred. | |
008c0481 | 804 | */ |
7ed3da3d BJ |
805 | #ifndef NOBADSECT |
806 | if (flag == CONT) | |
807 | npf = bp->b_error; | |
808 | else | |
809 | #endif | |
810 | npf = btop((up->upwc * sizeof(short)) + bp->b_bcount); | |
b7333467 | 811 | reg = btop(um->um_ubinfo&0x3ffff) + npf; |
008c0481 | 812 | o = (int)bp->b_un.b_addr & PGOFSET; |
008c0481 | 813 | mask = up->upec2; |
299d67ed | 814 | #ifdef UPECCDEBUG |
8c58f40c BJ |
815 | printf("npf %d reg %x o %d mask %o pos %d\n", npf, reg, o, mask, |
816 | up->upec1); | |
299d67ed | 817 | #endif |
7ed3da3d BJ |
818 | bn = dkblock(bp); |
819 | st = &upst[ui->ui_type]; | |
820 | cn = bp->b_cylin; | |
821 | sn = bn%st->nspc + npf; | |
822 | tn = sn/st->nsect; | |
823 | sn %= st->nsect; | |
824 | cn += tn/st->ntrak; | |
825 | tn %= st->ntrak; | |
060afaf6 | 826 | ubapurge(um); |
7ed3da3d | 827 | um->um_tab.b_active=2; |
7bc8d985 | 828 | /* |
7ed3da3d | 829 | * action taken depends on the flag |
7bc8d985 | 830 | */ |
7ed3da3d BJ |
831 | switch(flag){ |
832 | case ECC: | |
833 | npf--; | |
834 | reg--; | |
835 | mask = up->upec2; | |
836 | printf("up%d%c: soft ecc sn%d\n", dkunit(bp), | |
837 | 'a'+(minor(bp->b_dev)&07), bp->b_blkno + npf); | |
838 | /* | |
839 | * Flush the buffered data path, and compute the | |
840 | * byte and bit position of the error. The variable i | |
841 | * is the byte offset in the transfer, the variable byte | |
842 | * is the offset from a page boundary in main memory. | |
843 | */ | |
844 | i = up->upec1 - 1; /* -1 makes 0 origin */ | |
845 | bit = i&07; | |
846 | i = (i&~07)>>3; | |
847 | byte = i + o; | |
848 | /* | |
849 | * Correct while possible bits remain of mask. Since mask | |
850 | * contains 11 bits, we continue while the bit offset is > -11. | |
851 | * Also watch out for end of this block and the end of the whole | |
852 | * transfer. | |
853 | */ | |
854 | while (i < 512 && (int)ptob(npf)+i < bp->b_bcount && bit > -11) { | |
855 | addr = ptob(ubp->uba_map[reg+btop(byte)].pg_pfnum)+ | |
856 | (byte & PGOFSET); | |
857 | #ifdef UPECCDEBUG | |
858 | printf("addr %x map reg %x\n", | |
859 | addr, *(int *)(&ubp->uba_map[reg+btop(byte)])); | |
860 | printf("old: %x, ", getmemc(addr)); | |
861 | #endif | |
862 | putmemc(addr, getmemc(addr)^(mask<<bit)); | |
299d67ed | 863 | #ifdef UPECCDEBUG |
7ed3da3d | 864 | printf("new: %x\n", getmemc(addr)); |
299d67ed | 865 | #endif |
7ed3da3d BJ |
866 | byte++; |
867 | i++; | |
868 | } | |
869 | if (up->upwc == 0) | |
870 | return (0); | |
871 | npf++; | |
872 | reg++; | |
873 | break; | |
874 | #ifndef NOBADSECT | |
875 | case BSE: | |
876 | /* | |
877 | * if not in bad sector table, return 0 | |
878 | */ | |
879 | if ((bn = isbad(&upbad[ui->ui_unit], cn, tn, sn)) < 0) | |
880 | return(0); | |
881 | /* | |
882 | * flag this one as bad | |
883 | */ | |
884 | bp->b_flags |= B_BAD; | |
885 | bp->b_error = npf + 1; | |
299d67ed | 886 | #ifdef UPECCDEBUG |
7ed3da3d BJ |
887 | printf("BSE: restart at %d\n",npf+1); |
888 | #endif | |
889 | bn = st->ncyl * st->nspc -st->nsect - 1 - bn; | |
890 | cn = bn / st->nspc; | |
891 | sn = bn % st->nspc; | |
892 | tn = sn / st->nsect; | |
893 | sn %= st->nsect; | |
894 | up->upwc = -(512 / sizeof (short)); | |
895 | #ifdef UPECCDEBUG | |
896 | printf("revector to cn %d tn %d sn %d\n", cn, tn, sn); | |
897 | #endif | |
898 | break; | |
899 | case CONT: | |
900 | #ifdef UPECCDEBUG | |
901 | printf("upecc, CONT: bn %d cn %d tn %d sn %d\n", bn, cn, tn, sn); | |
902 | #endif | |
903 | bp->b_flags &= ~B_BAD; | |
904 | up->upwc = -((bp->b_bcount - (int)ptob(npf)) / sizeof(short)); | |
905 | if (up->upwc == 0) | |
906 | return(0); | |
907 | break; | |
299d67ed | 908 | #endif |
008c0481 | 909 | } |
55de6ac9 BJ |
910 | if (up->upwc == 0) { |
911 | um->um_tab.b_active = 0; | |
008c0481 | 912 | return (0); |
55de6ac9 | 913 | } |
7ed3da3d | 914 | } |
7bc8d985 BJ |
915 | /* |
916 | * Have to continue the transfer... clear the drive, | |
917 | * and compute the position where the transfer is to continue. | |
918 | * We have completed npf+1 sectors of the transfer already; | |
919 | * restart at offset o of next sector (i.e. in UBA register reg+1). | |
920 | */ | |
2601dfbd BJ |
921 | #ifdef notdef |
922 | up->uper1 = 0; | |
923 | up->upcs1 |= UP_GO; | |
924 | #else | |
925 | up->upcs1 = UP_TRE|UP_IE|UP_DCLR|UP_GO; | |
008c0481 | 926 | up->updc = cn; |
7bc8d985 | 927 | up->upda = (tn << 8) | sn; |
7ed3da3d | 928 | ubaddr = (int)ptob(reg) + o; |
7bc8d985 BJ |
929 | up->upba = ubaddr; |
930 | cmd = (ubaddr >> 8) & 0x300; | |
7ed3da3d BJ |
931 | cmd |= ((bp->b_flags&B_READ)?UP_RCOM:UP_WCOM)|UP_IE|UP_GO; |
932 | um->um_tab.b_errcnt = 0; | |
7bc8d985 | 933 | up->upcs1 = cmd; |
2601dfbd | 934 | #endif |
008c0481 BJ |
935 | return (1); |
936 | } | |
977c2848 BJ |
937 | |
938 | /* | |
939 | * Reset driver after UBA init. | |
940 | * Cancel software state of all pending transfers | |
941 | * and restart all units and the controller. | |
942 | */ | |
3f3a34c3 | 943 | upreset(uban) |
f6d201ff | 944 | int uban; |
977c2848 | 945 | { |
89bd2f01 BJ |
946 | register struct uba_ctlr *um; |
947 | register struct uba_device *ui; | |
3f3a34c3 BJ |
948 | register sc21, unit; |
949 | ||
a3cb8f60 | 950 | for (sc21 = 0; sc21 < NSC; sc21++) { |
7e00c42b BJ |
951 | if ((um = upminfo[sc21]) == 0 || um->um_ubanum != uban || |
952 | um->um_alive == 0) | |
3f3a34c3 | 953 | continue; |
f6d201ff | 954 | printf(" sc%d", sc21); |
3f3a34c3 BJ |
955 | um->um_tab.b_active = 0; |
956 | um->um_tab.b_actf = um->um_tab.b_actl = 0; | |
f6d201ff | 957 | up_softc[sc21].sc_recal = 0; |
cc7ff771 | 958 | up_softc[sc21].sc_wticks = 0; |
b7333467 BJ |
959 | if (um->um_ubinfo) { |
960 | printf("<%d>", (um->um_ubinfo>>28)&0xf); | |
96b997eb | 961 | um->um_ubinfo = 0; |
3f3a34c3 | 962 | } |
299d67ed | 963 | ((struct updevice *)(um->um_addr))->upcs2 = UPCS2_CLR; |
3f3a34c3 BJ |
964 | for (unit = 0; unit < NUP; unit++) { |
965 | if ((ui = updinfo[unit]) == 0) | |
966 | continue; | |
f6d201ff | 967 | if (ui->ui_alive == 0 || ui->ui_mi != um) |
3f3a34c3 BJ |
968 | continue; |
969 | uputab[unit].b_active = 0; | |
970 | (void) upustart(ui); | |
971 | } | |
972 | (void) upstart(um); | |
977c2848 | 973 | } |
977c2848 | 974 | } |
6a81870e BJ |
975 | |
976 | /* | |
977 | * Wake up every second and if an interrupt is pending | |
978 | * but nothing has happened increment a counter. | |
f6d201ff | 979 | * If nothing happens for 20 seconds, reset the UNIBUS |
6a81870e BJ |
980 | * and begin anew. |
981 | */ | |
982 | upwatch() | |
983 | { | |
89bd2f01 | 984 | register struct uba_ctlr *um; |
3f3a34c3 | 985 | register sc21, unit; |
7e00c42b | 986 | register struct up_softc *sc; |
6a81870e | 987 | |
7780575a | 988 | timeout(upwatch, (caddr_t)0, hz); |
a3cb8f60 | 989 | for (sc21 = 0; sc21 < NSC; sc21++) { |
3f3a34c3 | 990 | um = upminfo[sc21]; |
7e00c42b BJ |
991 | if (um == 0 || um->um_alive == 0) |
992 | continue; | |
993 | sc = &up_softc[sc21]; | |
3f3a34c3 BJ |
994 | if (um->um_tab.b_active == 0) { |
995 | for (unit = 0; unit < NUP; unit++) | |
2601dfbd BJ |
996 | if (uputab[unit].b_active && |
997 | updinfo[unit]->ui_mi == um) | |
3f3a34c3 | 998 | goto active; |
7e00c42b | 999 | sc->sc_wticks = 0; |
3f3a34c3 BJ |
1000 | continue; |
1001 | } | |
f6d201ff | 1002 | active: |
7e00c42b BJ |
1003 | sc->sc_wticks++; |
1004 | if (sc->sc_wticks >= 20) { | |
1005 | sc->sc_wticks = 0; | |
f6d201ff | 1006 | printf("sc%d: lost interrupt\n", sc21); |
a3cb8f60 | 1007 | ubareset(um->um_ubanum); |
3f3a34c3 | 1008 | } |
6a81870e BJ |
1009 | } |
1010 | } | |
0ff318b2 BJ |
1011 | |
1012 | #define DBSIZE 20 | |
1013 | ||
1014 | updump(dev) | |
1015 | dev_t dev; | |
1016 | { | |
2601dfbd | 1017 | struct updevice *upaddr; |
0ff318b2 | 1018 | char *start; |
a0eab615 | 1019 | int num, blk, unit; |
0ff318b2 | 1020 | struct size *sizes; |
3f3a34c3 | 1021 | register struct uba_regs *uba; |
89bd2f01 | 1022 | register struct uba_device *ui; |
0ff318b2 | 1023 | register short *rp; |
3f3a34c3 | 1024 | struct upst *st; |
cd8ce595 | 1025 | register int retry; |
7ed3da3d | 1026 | register int retry; |
0ff318b2 | 1027 | |
0ff318b2 | 1028 | unit = minor(dev) >> 3; |
0c48c799 BJ |
1029 | if (unit >= NUP) |
1030 | return (ENXIO); | |
7e00c42b | 1031 | #define phys(cast, addr) ((cast)((int)addr & 0x7fffffff)) |
89bd2f01 | 1032 | ui = phys(struct uba_device *, updinfo[unit]); |
0c48c799 BJ |
1033 | if (ui->ui_alive == 0) |
1034 | return (ENXIO); | |
3f3a34c3 | 1035 | uba = phys(struct uba_hd *, ui->ui_hd)->uh_physuba; |
89bd2f01 | 1036 | ubainit(uba); |
2601dfbd | 1037 | upaddr = (struct updevice *)ui->ui_physaddr; |
cd8ce595 | 1038 | DELAY(5000000); |
3f3a34c3 | 1039 | num = maxfree; |
0ff318b2 | 1040 | upaddr->upcs2 = unit; |
89bd2f01 | 1041 | DELAY(100); |
cd8ce595 SL |
1042 | upaddr->upcs1 = UP_DCLR|UP_GO; |
1043 | upaddr->upcs1 = UP_PRESET|UP_GO; | |
1044 | upaddr->upof = UPOF_FMT22; | |
1045 | retry = 0; | |
1046 | do { | |
1047 | DELAY(25); | |
1048 | if (++retry > 527) | |
1049 | break; | |
0599cbf1 | 1050 | } while ((upaddr->upds & UP_RDY) == 0); |
299d67ed | 1051 | if ((upaddr->upds & UPDS_DREADY) != UPDS_DREADY) |
0c48c799 | 1052 | return (EFAULT); |
cd8ce595 | 1053 | start = 0; |
7e00c42b | 1054 | st = &upst[ui->ui_type]; |
7ed3da3d | 1055 | start = 0; |
3f3a34c3 | 1056 | sizes = phys(struct size *, st->sizes); |
0c48c799 BJ |
1057 | if (dumplo < 0 || dumplo + num >= sizes[minor(dev)&07].nblocks) |
1058 | return (EINVAL); | |
0ff318b2 BJ |
1059 | while (num > 0) { |
1060 | register struct pte *io; | |
1061 | register int i; | |
1062 | int cn, sn, tn; | |
1063 | daddr_t bn; | |
1064 | ||
1065 | blk = num > DBSIZE ? DBSIZE : num; | |
3f3a34c3 | 1066 | io = uba->uba_map; |
0ff318b2 | 1067 | for (i = 0; i < blk; i++) |
89bd2f01 | 1068 | *(int *)io++ = (btop(start)+i) | (1<<21) | UBAMR_MRV; |
0ff318b2 BJ |
1069 | *(int *)io = 0; |
1070 | bn = dumplo + btop(start); | |
71236e46 BJ |
1071 | cn = bn/st->nspc + sizes[minor(dev)&07].cyloff; |
1072 | sn = bn%st->nspc; | |
1073 | tn = sn/st->nsect; | |
1074 | sn = sn%st->nsect; | |
0ff318b2 BJ |
1075 | upaddr->updc = cn; |
1076 | rp = (short *) &upaddr->upda; | |
1077 | *rp = (tn << 8) + sn; | |
1078 | *--rp = 0; | |
1079 | *--rp = -blk*NBPG / sizeof (short); | |
2601dfbd | 1080 | *--rp = UP_GO|UP_WCOM; |
cd8ce595 | 1081 | retry = 0; |
7ed3da3d | 1082 | retry = 0; |
0ff318b2 BJ |
1083 | do { |
1084 | DELAY(25); | |
cd8ce595 SL |
1085 | if (++retry > 527) |
1086 | break; | |
7ed3da3d BJ |
1087 | if (++retry > 527) |
1088 | break; | |
2601dfbd | 1089 | } while ((upaddr->upcs1 & UP_RDY) == 0); |
cd8ce595 | 1090 | if ((upaddr->upds & UPDS_DREADY) != UPDS_DREADY) { |
0599cbf1 | 1091 | printf("up%d: not ready", unit); |
cd8ce595 SL |
1092 | if ((upaddr->upds & UPDS_DREADY) != UPDS_DREADY) { |
1093 | printf("\n"); | |
1094 | return (EIO); | |
1095 | } | |
1096 | printf(" (flakey)\n"); | |
1097 | } | |
7ed3da3d BJ |
1098 | if ((upaddr->upds & UPDS_DREADY) != UPDS_DREADY) { |
1099 | printf("up%d: not ready", unit); | |
1100 | if ((upaddr->upds & UPDS_DREADY) != UPDS_DREADY) { | |
1101 | printf("\n"); | |
1102 | return (EIO); | |
1103 | } | |
1104 | printf(" (flakey)\n"); | |
1105 | } | |
299d67ed | 1106 | if (upaddr->upds&UPDS_ERR) |
0c48c799 | 1107 | return (EIO); |
0ff318b2 BJ |
1108 | start += blk*NBPG; |
1109 | num -= blk; | |
1110 | } | |
0ff318b2 BJ |
1111 | return (0); |
1112 | } | |
cf83ab8e SL |
1113 | |
1114 | upsize(dev) | |
1115 | dev_t dev; | |
1116 | { | |
1117 | int unit = minor(dev) >> 3; | |
1118 | struct uba_device *ui; | |
1119 | struct upst *st; | |
1120 | ||
1121 | if (unit >= NUP || (ui = updinfo[unit]) == 0 || ui->ui_alive == 0) | |
1122 | return (-1); | |
1123 | st = &upst[ui->ui_type]; | |
1124 | return (st->sizes[minor(dev) & 07].nblocks); | |
1125 | } | |
63c35a63 | 1126 | #endif |