Commit | Line | Data |
---|---|---|
f4ce106d | 1 | /* up.c 4.66 83/02/10 */ |
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" |
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 */ |
f4ce106d | 43 | struct size { |
008c0481 BJ |
44 | daddr_t nblocks; |
45 | int cyloff; | |
46 | } up_sizes[8] = { | |
c94d7fe4 BJ |
47 | #ifdef ERNIE |
48 | 49324, 0, /* A=cyl 0 thru 26 */ | |
49 | #else | |
008c0481 | 50 | 15884, 0, /* A=cyl 0 thru 26 */ |
c94d7fe4 | 51 | #endif |
008c0481 | 52 | 33440, 27, /* B=cyl 27 thru 81 */ |
d1778415 | 53 | 495520, 0, /* C=cyl 0 thru 814 */ |
008c0481 BJ |
54 | 15884, 562, /* D=cyl 562 thru 588 */ |
55 | 55936, 589, /* E=cyl 589 thru 680 */ | |
0d728200 BJ |
56 | 81376, 681, /* F=cyl 681 thru 814 */ |
57 | 153728, 562, /* G=cyl 562 thru 814 */ | |
008c0481 | 58 | 291346, 82, /* H=cyl 82 thru 561 */ |
3f3a34c3 BJ |
59 | }, fj_sizes[8] = { |
60 | 15884, 0, /* A=cyl 0 thru 49 */ | |
61 | 33440, 50, /* B=cyl 50 thru 154 */ | |
62 | 263360, 0, /* C=cyl 0 thru 822 */ | |
63 | 0, 0, | |
64 | 0, 0, | |
65 | 0, 0, | |
66 | 0, 0, | |
0d728200 | 67 | 213664, 155, /* H=cyl 155 thru 822 */ |
a1ef7a52 | 68 | }, upam_sizes[8] = { |
0cc9b5a9 BJ |
69 | 15884, 0, /* A=cyl 0 thru 31 */ |
70 | 33440, 32, /* B=cyl 32 thru 97 */ | |
71 | 524288, 0, /* C=cyl 0 thru 1023 */ | |
eadd189e SL |
72 | 27786, 668, |
73 | 27786, 723, | |
74 | 125440, 778, | |
0cc9b5a9 BJ |
75 | 181760, 668, /* G=cyl 668 thru 1022 */ |
76 | 291346, 98, /* H=cyl 98 thru 667 */ | |
008c0481 | 77 | }; |
3f3a34c3 | 78 | /* END OF STUFF WHICH SHOULD BE READ IN PER DISK */ |
008c0481 | 79 | |
cc7ff771 BJ |
80 | /* |
81 | * On a 780 upSDIST could be 2, but | |
82 | * in the interest of 750's... | |
83 | */ | |
84 | #define _upSDIST 3 /* 1.5 msec */ | |
3f3a34c3 BJ |
85 | #define _upRDIST 4 /* 2.0 msec */ |
86 | ||
87 | int upSDIST = _upSDIST; | |
88 | int upRDIST = _upRDIST; | |
89 | ||
71236e46 | 90 | int upprobe(), upslave(), upattach(), updgo(), upintr(); |
89bd2f01 BJ |
91 | struct uba_ctlr *upminfo[NSC]; |
92 | struct uba_device *updinfo[NUP]; | |
c10bcf0a BJ |
93 | #define UPIPUNITS 8 |
94 | struct uba_device *upip[NSC][UPIPUNITS]; /* fuji w/fixed head gives n,n+4 */ | |
d763a2b7 | 95 | |
71236e46 | 96 | u_short upstd[] = { 0776700, 0774400, 0776300, 0 }; |
0801d37f | 97 | struct uba_driver scdriver = |
71236e46 | 98 | { upprobe, upslave, upattach, updgo, upstd, "up", updinfo, "sc", upminfo }; |
3f3a34c3 | 99 | struct buf uputab[NUP]; |
7ed3da3d | 100 | char upinit[NUP]; |
3b186c1c | 101 | char upinit[NUP]; |
3f3a34c3 BJ |
102 | |
103 | struct upst { | |
104 | short nsect; | |
105 | short ntrak; | |
106 | short nspc; | |
107 | short ncyl; | |
108 | struct size *sizes; | |
109 | } upst[] = { | |
71236e46 BJ |
110 | 32, 19, 32*19, 823, up_sizes, /* 9300/cdc */ |
111 | /* 9300 actually has 815 cylinders... */ | |
3f3a34c3 | 112 | 32, 10, 32*10, 823, fj_sizes, /* fujitsu 160m */ |
a1ef7a52 | 113 | 32, 16, 32*16, 1024, upam_sizes, /* ampex capricorn */ |
3f3a34c3 | 114 | }; |
008c0481 | 115 | |
2601dfbd | 116 | u_char up_offset[16] = { |
7ed3da3d BJ |
117 | UPOF_P400, UPOF_M400, UPOF_P400, UPOF_M400, |
118 | UPOF_P800, UPOF_M800, UPOF_P800, UPOF_M800, | |
119 | UPOF_P1200, UPOF_M1200, UPOF_P1200, UPOF_M1200, | |
120 | 0, 0, 0, 0 | |
2601dfbd | 121 | }; |
008c0481 | 122 | |
0801d37f | 123 | struct buf rupbuf[NUP]; |
7ed3da3d BJ |
124 | struct buf bupbuf[NUP]; |
125 | struct dkbad upbad[NUP]; | |
3b186c1c SL |
126 | #ifndef NOBADSECT |
127 | struct buf bupbuf[NUP]; | |
128 | struct dkbad upbad[NUP]; | |
129 | #endif | |
008c0481 | 130 | |
008c0481 BJ |
131 | #define b_cylin b_resid |
132 | ||
008c0481 BJ |
133 | #ifdef INTRLVE |
134 | daddr_t dkblock(); | |
135 | #endif | |
3f3a34c3 BJ |
136 | |
137 | int upwstart, upwatch(); /* Have started guardian */ | |
7e00c42b | 138 | int upseek; |
f88f8fdb | 139 | int upwaitdry; |
3f3a34c3 BJ |
140 | |
141 | /*ARGSUSED*/ | |
71236e46 | 142 | upprobe(reg) |
3f3a34c3 | 143 | caddr_t reg; |
008c0481 | 144 | { |
d763a2b7 BJ |
145 | register int br, cvec; |
146 | ||
71236e46 BJ |
147 | #ifdef lint |
148 | br = 0; cvec = br; br = cvec; | |
149 | #endif | |
2601dfbd | 150 | ((struct updevice *)reg)->upcs1 = UP_IE|UP_RDY; |
71236e46 | 151 | DELAY(10); |
2601dfbd | 152 | ((struct updevice *)reg)->upcs1 = 0; |
9c0adba0 | 153 | return (sizeof (struct updevice)); |
3f3a34c3 BJ |
154 | } |
155 | ||
71236e46 | 156 | upslave(ui, reg) |
89bd2f01 | 157 | struct uba_device *ui; |
3f3a34c3 BJ |
158 | caddr_t reg; |
159 | { | |
2601dfbd | 160 | register struct updevice *upaddr = (struct updevice *)reg; |
3f3a34c3 BJ |
161 | |
162 | upaddr->upcs1 = 0; /* conservative */ | |
71236e46 | 163 | upaddr->upcs2 = ui->ui_slave; |
c224ab94 | 164 | upaddr->upcs1 = UP_NOP|UP_GO; |
7ed3da3d | 165 | upaddr->upcs1 = UP_NOP|UP_GO; |
299d67ed | 166 | if (upaddr->upcs2&UPCS2_NED) { |
2601dfbd | 167 | upaddr->upcs1 = UP_DCLR|UP_GO; |
3f3a34c3 BJ |
168 | return (0); |
169 | } | |
71236e46 BJ |
170 | return (1); |
171 | } | |
172 | ||
173 | upattach(ui) | |
89bd2f01 | 174 | register struct uba_device *ui; |
71236e46 | 175 | { |
2601dfbd | 176 | register struct updevice *upaddr; |
71236e46 | 177 | |
6a81870e | 178 | if (upwstart == 0) { |
7780575a | 179 | timeout(upwatch, (caddr_t)0, hz); |
6a81870e BJ |
180 | upwstart++; |
181 | } | |
b7333467 BJ |
182 | if (ui->ui_dk >= 0) |
183 | dk_mspw[ui->ui_dk] = .0000020345; | |
71236e46 BJ |
184 | upip[ui->ui_ctlr][ui->ui_slave] = ui; |
185 | up_softc[ui->ui_ctlr].sc_ndrive++; | |
2601dfbd BJ |
186 | upaddr = (struct updevice *)ui->ui_addr; |
187 | upaddr->upcs1 = 0; | |
188 | upaddr->upcs2 = ui->ui_slave; | |
26e15512 | 189 | upaddr->uphr = UPHR_MAXTRAK; |
c6a51a7b | 190 | if (upaddr->uphr == 9) |
26e15512 | 191 | ui->ui_type = 1; /* fujitsu hack */ |
0cc9b5a9 BJ |
192 | else if (upaddr->uphr == 15) |
193 | ui->ui_type = 2; /* ampex hack */ | |
26e15512 | 194 | upaddr->upcs2 = UPCS2_CLR; |
3f3a34c3 BJ |
195 | } |
196 | ||
3b186c1c SL |
197 | upopen(dev) |
198 | dev_t dev; | |
199 | { | |
200 | register int unit = minor(dev) >> 3; | |
201 | register struct uba_device *ui; | |
202 | ||
203 | if (unit >= NUP || (ui = updinfo[unit]) == 0 || ui->ui_alive == 0) | |
204 | return (ENXIO); | |
205 | return (0); | |
206 | } | |
207 | ||
3f3a34c3 BJ |
208 | upstrategy(bp) |
209 | register struct buf *bp; | |
210 | { | |
89bd2f01 | 211 | register struct uba_device *ui; |
3f3a34c3 BJ |
212 | register struct upst *st; |
213 | register int unit; | |
7e00c42b | 214 | register struct buf *dp; |
3f3a34c3 | 215 | int xunit = minor(bp->b_dev) & 07; |
7e00c42b | 216 | long bn, sz; |
3f3a34c3 | 217 | |
7e00c42b | 218 | sz = (bp->b_bcount+511) >> 9; |
008c0481 | 219 | unit = dkunit(bp); |
3f3a34c3 BJ |
220 | if (unit >= NUP) |
221 | goto bad; | |
222 | ui = updinfo[unit]; | |
223 | if (ui == 0 || ui->ui_alive == 0) | |
224 | goto bad; | |
225 | st = &upst[ui->ui_type]; | |
226 | if (bp->b_blkno < 0 || | |
227 | (bn = dkblock(bp))+sz > st->sizes[xunit].nblocks) | |
228 | goto bad; | |
229 | bp->b_cylin = bn/st->nspc + st->sizes[xunit].cyloff; | |
0cc9b5a9 | 230 | (void) spl5(); |
7e00c42b BJ |
231 | dp = &uputab[ui->ui_unit]; |
232 | disksort(dp, bp); | |
233 | if (dp->b_active == 0) { | |
3f3a34c3 BJ |
234 | (void) upustart(ui); |
235 | bp = &ui->ui_mi->um_tab; | |
236 | if (bp->b_actf && bp->b_active == 0) | |
237 | (void) upstart(ui->ui_mi); | |
008c0481 | 238 | } |
0cc9b5a9 | 239 | (void) spl0(); |
3f3a34c3 BJ |
240 | return; |
241 | ||
242 | bad: | |
243 | bp->b_flags |= B_ERROR; | |
244 | iodone(bp); | |
245 | return; | |
008c0481 BJ |
246 | } |
247 | ||
736772ef BJ |
248 | /* |
249 | * Unit start routine. | |
250 | * Seek the drive to be where the data is | |
251 | * and then generate another interrupt | |
252 | * to actually start the transfer. | |
253 | * If there is only one drive on the controller, | |
254 | * or we are very close to the data, don't | |
255 | * bother with the search. If called after | |
256 | * searching once, don't bother to look where | |
257 | * we are, just queue for transfer (to avoid | |
258 | * positioning forever without transferrring.) | |
259 | */ | |
3f3a34c3 | 260 | upustart(ui) |
89bd2f01 | 261 | register struct uba_device *ui; |
008c0481 BJ |
262 | { |
263 | register struct buf *bp, *dp; | |
89bd2f01 | 264 | register struct uba_ctlr *um; |
2601dfbd | 265 | register struct updevice *upaddr; |
3f3a34c3 | 266 | register struct upst *st; |
008c0481 | 267 | daddr_t bn; |
736772ef | 268 | int sn, csn; |
71236e46 BJ |
269 | /* |
270 | * The SC21 cancels commands if you just say | |
2601dfbd | 271 | * cs1 = UP_IE |
71236e46 BJ |
272 | * so we are cautious about handling of cs1. |
273 | * Also don't bother to clear as bits other than in upintr(). | |
274 | */ | |
736772ef BJ |
275 | int didie = 0; |
276 | ||
277 | if (ui == 0) | |
278 | return (0); | |
89bd2f01 | 279 | um = ui->ui_mi; |
3f3a34c3 BJ |
280 | dk_busy &= ~(1<<ui->ui_dk); |
281 | dp = &uputab[ui->ui_unit]; | |
7bc8d985 | 282 | if ((bp = dp->b_actf) == NULL) |
eb891eaa | 283 | goto out; |
736772ef BJ |
284 | /* |
285 | * If the controller is active, just remember | |
286 | * that this device would like to be positioned... | |
287 | * if we tried to position now we would confuse the SC21. | |
288 | */ | |
3f3a34c3 | 289 | if (um->um_tab.b_active) { |
d763a2b7 | 290 | up_softc[um->um_ctlr].sc_softas |= 1<<ui->ui_slave; |
2a3b9a7f BJ |
291 | return (0); |
292 | } | |
736772ef BJ |
293 | /* |
294 | * If we have already positioned this drive, | |
295 | * then just put it on the ready queue. | |
296 | */ | |
a3f430e0 BJ |
297 | if (dp->b_active) |
298 | goto done; | |
299 | dp->b_active = 1; | |
2601dfbd | 300 | upaddr = (struct updevice *)um->um_addr; |
3f3a34c3 | 301 | upaddr->upcs2 = ui->ui_slave; |
736772ef BJ |
302 | /* |
303 | * If drive has just come up, | |
304 | * setup the pack. | |
305 | */ | |
7ed3da3d BJ |
306 | if ((upaddr->upds & UPDS_VV) == 0 || upinit[ui->ui_unit] == 0) { |
307 | #ifndef NOBADSECT | |
308 | struct buf *bbp = &bupbuf[ui->ui_unit]; | |
309 | #endif | |
71236e46 | 310 | /* SHOULD WARN SYSTEM THAT THIS HAPPENED */ |
7ed3da3d | 311 | upinit[ui->ui_unit] = 1; |
3b186c1c | 312 | upinit[ui->ui_unit] = 1; |
2601dfbd BJ |
313 | upaddr->upcs1 = UP_IE|UP_DCLR|UP_GO; |
314 | upaddr->upcs1 = UP_IE|UP_PRESET|UP_GO; | |
299d67ed | 315 | upaddr->upof = UPOF_FMT22; |
eb891eaa | 316 | didie = 1; |
3b186c1c SL |
317 | st = &upst[ui->ui_type]; |
318 | bbp->b_flags = B_READ|B_BUSY; | |
319 | bbp->b_dev = bp->b_dev; | |
320 | bbp->b_bcount = 512; | |
321 | bbp->b_un.b_addr = (caddr_t)&upbad[ui->ui_unit]; | |
322 | bbp->b_blkno = st->ncyl * st->nspc - st->nsect; | |
323 | bbp->b_cylin = st->ncyl - 1; | |
324 | dp->b_actf = bbp; | |
325 | bbp->av_forw = bp; | |
326 | bp = bbp; | |
7ed3da3d BJ |
327 | #ifndef NOBADSECT |
328 | st = &upst[ui->ui_type]; | |
329 | bbp->b_flags = B_READ|B_BUSY; | |
330 | bbp->b_dev = bp->b_dev; | |
331 | bbp->b_bcount = 512; | |
332 | bbp->b_un.b_addr = (caddr_t)&upbad[ui->ui_unit]; | |
333 | bbp->b_blkno = st->ncyl * st->nspc - st->nsect; | |
334 | bbp->b_cylin = st->ncyl - 1; | |
335 | dp->b_actf = bbp; | |
336 | bbp->av_forw = bp; | |
337 | bp = bbp; | |
338 | #endif | |
008c0481 | 339 | } |
736772ef BJ |
340 | /* |
341 | * If drive is offline, forget about positioning. | |
342 | */ | |
299d67ed | 343 | if ((upaddr->upds & (UPDS_DPR|UPDS_MOL)) != (UPDS_DPR|UPDS_MOL)) |
2a3b9a7f | 344 | goto done; |
736772ef BJ |
345 | /* |
346 | * If there is only one drive, | |
347 | * dont bother searching. | |
348 | */ | |
71236e46 BJ |
349 | if (up_softc[um->um_ctlr].sc_ndrive == 1) |
350 | goto done; | |
736772ef BJ |
351 | /* |
352 | * Figure out where this transfer is going to | |
353 | * and see if we are close enough to justify not searching. | |
354 | */ | |
3f3a34c3 | 355 | st = &upst[ui->ui_type]; |
008c0481 | 356 | bn = dkblock(bp); |
3f3a34c3 BJ |
357 | sn = bn%st->nspc; |
358 | sn = (sn + st->nsect - upSDIST) % st->nsect; | |
736772ef | 359 | if (bp->b_cylin - upaddr->updc) |
7bc8d985 | 360 | goto search; /* Not on-cylinder */ |
2a3b9a7f BJ |
361 | else if (upseek) |
362 | goto done; /* Ok just to be on-cylinder */ | |
008c0481 | 363 | csn = (upaddr->upla>>6) - sn - 1; |
7bc8d985 | 364 | if (csn < 0) |
3f3a34c3 BJ |
365 | csn += st->nsect; |
366 | if (csn > st->nsect - upRDIST) | |
008c0481 | 367 | goto done; |
008c0481 | 368 | search: |
736772ef BJ |
369 | upaddr->updc = bp->b_cylin; |
370 | /* | |
371 | * Not on cylinder at correct position, | |
372 | * seek/search. | |
373 | */ | |
2a3b9a7f | 374 | if (upseek) |
2601dfbd | 375 | upaddr->upcs1 = UP_IE|UP_SEEK|UP_GO; |
7e00c42b | 376 | else { |
2a3b9a7f | 377 | upaddr->upda = sn; |
2601dfbd | 378 | upaddr->upcs1 = UP_IE|UP_SEARCH|UP_GO; |
2a3b9a7f | 379 | } |
eb891eaa | 380 | didie = 1; |
736772ef BJ |
381 | /* |
382 | * Mark unit busy for iostat. | |
383 | */ | |
3f3a34c3 BJ |
384 | if (ui->ui_dk >= 0) { |
385 | dk_busy |= 1<<ui->ui_dk; | |
386 | dk_seek[ui->ui_dk]++; | |
008c0481 | 387 | } |
eb891eaa | 388 | goto out; |
008c0481 | 389 | done: |
736772ef BJ |
390 | /* |
391 | * Device is ready to go. | |
392 | * Put it on the ready queue for the controller | |
393 | * (unless its already there.) | |
394 | */ | |
2601dfbd BJ |
395 | if (dp->b_active != 2) { |
396 | dp->b_forw = NULL; | |
397 | if (um->um_tab.b_actf == NULL) | |
398 | um->um_tab.b_actf = dp; | |
399 | else | |
400 | um->um_tab.b_actl->b_forw = dp; | |
401 | um->um_tab.b_actl = dp; | |
402 | dp->b_active = 2; | |
403 | } | |
eb891eaa BJ |
404 | out: |
405 | return (didie); | |
008c0481 BJ |
406 | } |
407 | ||
736772ef BJ |
408 | /* |
409 | * Start up a transfer on a drive. | |
410 | */ | |
3f3a34c3 | 411 | upstart(um) |
89bd2f01 | 412 | register struct uba_ctlr *um; |
008c0481 BJ |
413 | { |
414 | register struct buf *bp, *dp; | |
89bd2f01 | 415 | register struct uba_device *ui; |
2601dfbd | 416 | register struct updevice *upaddr; |
7e00c42b | 417 | struct upst *st; |
008c0481 | 418 | daddr_t bn; |
f88f8fdb | 419 | int dn, sn, tn, cmd, waitdry; |
008c0481 | 420 | |
008c0481 | 421 | loop: |
736772ef BJ |
422 | /* |
423 | * Pull a request off the controller queue | |
424 | */ | |
3f3a34c3 | 425 | if ((dp = um->um_tab.b_actf) == NULL) |
eb891eaa | 426 | return (0); |
008c0481 | 427 | if ((bp = dp->b_actf) == NULL) { |
3f3a34c3 | 428 | um->um_tab.b_actf = dp->b_forw; |
008c0481 BJ |
429 | goto loop; |
430 | } | |
736772ef BJ |
431 | /* |
432 | * Mark controller busy, and | |
433 | * determine destination of this request. | |
434 | */ | |
3f3a34c3 BJ |
435 | um->um_tab.b_active++; |
436 | ui = updinfo[dkunit(bp)]; | |
008c0481 | 437 | bn = dkblock(bp); |
3f3a34c3 BJ |
438 | dn = ui->ui_slave; |
439 | st = &upst[ui->ui_type]; | |
440 | sn = bn%st->nspc; | |
441 | tn = sn/st->nsect; | |
442 | sn %= st->nsect; | |
2601dfbd | 443 | upaddr = (struct updevice *)ui->ui_addr; |
736772ef BJ |
444 | /* |
445 | * Select drive if not selected already. | |
446 | */ | |
447 | if ((upaddr->upcs2&07) != dn) | |
448 | upaddr->upcs2 = dn; | |
449 | /* | |
450 | * Check that it is ready and online | |
451 | */ | |
f88f8fdb | 452 | waitdry = 0; |
299d67ed | 453 | while ((upaddr->upds&UPDS_DRY) == 0) { |
7ed3da3d | 454 | printf("up%d: ds wait ds=%o\n",dkunit(bp),upaddr->upds); |
ac1276f8 | 455 | printf("up%d: ds wait ds=%o\n",dkunit(bp),upaddr->upds); |
f88f8fdb BJ |
456 | if (++waitdry > 512) |
457 | break; | |
458 | upwaitdry++; | |
459 | } | |
299d67ed | 460 | if ((upaddr->upds & UPDS_DREADY) != UPDS_DREADY) { |
f6d201ff | 461 | printf("up%d: not ready", dkunit(bp)); |
299d67ed | 462 | if ((upaddr->upds & UPDS_DREADY) != UPDS_DREADY) { |
71236e46 | 463 | printf("\n"); |
3f3a34c3 BJ |
464 | um->um_tab.b_active = 0; |
465 | um->um_tab.b_errcnt = 0; | |
88253fd2 BJ |
466 | dp->b_actf = bp->av_forw; |
467 | dp->b_active = 0; | |
468 | bp->b_flags |= B_ERROR; | |
469 | iodone(bp); | |
88253fd2 BJ |
470 | goto loop; |
471 | } | |
736772ef BJ |
472 | /* |
473 | * Oh, well, sometimes this | |
474 | * happens, for reasons unknown. | |
475 | */ | |
2601dfbd | 476 | printf(" (flakey)\n"); |
008c0481 | 477 | } |
736772ef BJ |
478 | /* |
479 | * Setup for the transfer, and get in the | |
480 | * UNIBUS adaptor queue. | |
481 | */ | |
5aa9d5ea | 482 | upaddr->updc = bp->b_cylin; |
008c0481 | 483 | upaddr->upda = (tn << 8) + sn; |
008c0481 BJ |
484 | upaddr->upwc = -bp->b_bcount / sizeof (short); |
485 | if (bp->b_flags & B_READ) | |
2601dfbd | 486 | cmd = UP_IE|UP_RCOM|UP_GO; |
008c0481 | 487 | else |
2601dfbd | 488 | cmd = UP_IE|UP_WCOM|UP_GO; |
b7333467 | 489 | um->um_cmd = cmd; |
a0eab615 | 490 | (void) ubago(ui); |
eb891eaa | 491 | return (1); |
008c0481 BJ |
492 | } |
493 | ||
736772ef BJ |
494 | /* |
495 | * Now all ready to go, stuff the registers. | |
496 | */ | |
b7333467 | 497 | updgo(um) |
89bd2f01 | 498 | struct uba_ctlr *um; |
3f3a34c3 | 499 | { |
2601dfbd | 500 | register struct updevice *upaddr = (struct updevice *)um->um_addr; |
7e00c42b | 501 | |
de59ccc2 | 502 | um->um_tab.b_active = 2; /* should now be 2 */ |
b7333467 BJ |
503 | upaddr->upba = um->um_ubinfo; |
504 | upaddr->upcs1 = um->um_cmd|((um->um_ubinfo>>8)&0x300); | |
3f3a34c3 BJ |
505 | } |
506 | ||
736772ef BJ |
507 | /* |
508 | * Handle a disk interrupt. | |
509 | */ | |
443c8066 | 510 | upintr(sc21) |
3f3a34c3 | 511 | register sc21; |
008c0481 BJ |
512 | { |
513 | register struct buf *bp, *dp; | |
89bd2f01 BJ |
514 | register struct uba_ctlr *um = upminfo[sc21]; |
515 | register struct uba_device *ui; | |
2601dfbd | 516 | register struct updevice *upaddr = (struct updevice *)um->um_addr; |
008c0481 | 517 | register unit; |
7e00c42b | 518 | struct up_softc *sc = &up_softc[um->um_ctlr]; |
71236e46 | 519 | int as = (upaddr->upas & 0377) | sc->sc_softas; |
f88f8fdb | 520 | int needie = 1, waitdry; |
008c0481 | 521 | |
7e00c42b | 522 | sc->sc_wticks = 0; |
71236e46 | 523 | sc->sc_softas = 0; |
736772ef BJ |
524 | /* |
525 | * If controller wasn't transferring, then this is an | |
526 | * interrupt for attention status on seeking drives. | |
527 | * Just service them. | |
528 | */ | |
cc7ff771 | 529 | if (um->um_tab.b_active != 2 && !sc->sc_recal) { |
736772ef BJ |
530 | if (upaddr->upcs1 & UP_TRE) |
531 | upaddr->upcs1 = UP_TRE; | |
532 | goto doattn; | |
533 | } | |
de59ccc2 | 534 | um->um_tab.b_active = 1; |
7ed3da3d | 535 | um->um_tab.b_active = 1; |
736772ef BJ |
536 | /* |
537 | * Get device and block structures, and a pointer | |
89bd2f01 | 538 | * to the uba_device for the drive. Select the drive. |
736772ef BJ |
539 | */ |
540 | dp = um->um_tab.b_actf; | |
541 | bp = dp->b_actf; | |
542 | ui = updinfo[dkunit(bp)]; | |
543 | dk_busy &= ~(1 << ui->ui_dk); | |
544 | if ((upaddr->upcs2&07) != ui->ui_slave) | |
3f3a34c3 | 545 | upaddr->upcs2 = ui->ui_slave; |
3b186c1c SL |
546 | if (bp->b_flags&B_BAD) { |
547 | if (upecc(ui, CONT)) | |
548 | return; | |
549 | } | |
7ed3da3d BJ |
550 | #ifndef NOBADSECT |
551 | if (bp->b_flags&B_BAD) { | |
552 | if (upecc(ui, CONT)) | |
553 | return; | |
554 | } | |
555 | #endif | |
736772ef BJ |
556 | /* |
557 | * Check for and process errors on | |
558 | * either the drive or the controller. | |
559 | */ | |
299d67ed | 560 | if ((upaddr->upds&UPDS_ERR) || (upaddr->upcs1&UP_TRE)) { |
f88f8fdb | 561 | waitdry = 0; |
299d67ed | 562 | while ((upaddr->upds & UPDS_DRY) == 0) { |
f88f8fdb BJ |
563 | if (++waitdry > 512) |
564 | break; | |
565 | upwaitdry++; | |
566 | } | |
299d67ed | 567 | if (upaddr->uper1&UPER1_WLE) { |
736772ef BJ |
568 | /* |
569 | * Give up on write locked devices | |
570 | * immediately. | |
571 | */ | |
f6d201ff | 572 | printf("up%d: write locked\n", dkunit(bp)); |
736772ef BJ |
573 | bp->b_flags |= B_ERROR; |
574 | } else if (++um->um_tab.b_errcnt > 27) { | |
575 | /* | |
576 | * After 28 retries (16 without offset, and | |
577 | * 12 with offset positioning) give up. | |
578 | */ | |
3b186c1c | 579 | hard: |
7ed3da3d | 580 | hard: |
f6d201ff | 581 | harderr(bp, "up"); |
7ed3da3d BJ |
582 | printf("cn=%d tn=%d sn=%d cs2=%b er1=%b er2=%b\n", |
583 | upaddr->updc, ((upaddr->upda)>>8)&077, | |
584 | (upaddr->upda)&037, | |
585 | upaddr->upcs2, UPCS2_BITS, | |
586 | upaddr->uper1, UPER1_BITS, | |
587 | upaddr->uper2, UPER2_BITS); | |
736772ef | 588 | bp->b_flags |= B_ERROR; |
7ed3da3d | 589 | } else if (upaddr->uper2 & UPER2_BSE) { |
7ed3da3d BJ |
590 | if (upecc(ui, BSE)) |
591 | return; | |
592 | else | |
3b186c1c SL |
593 | goto hard; |
594 | } else if (upaddr->uper2 & UPER2_BSE) { | |
595 | #ifndef NOBADSECT | |
596 | if (upecc(ui, BSE)) | |
597 | return; | |
598 | else | |
7ed3da3d BJ |
599 | #endif |
600 | goto hard; | |
736772ef BJ |
601 | } else { |
602 | /* | |
603 | * Retriable error. | |
604 | * If a soft ecc, correct it (continuing | |
605 | * by returning if necessary. | |
606 | * Otherwise fall through and retry the transfer | |
607 | */ | |
55de6ac9 | 608 | if ((upaddr->uper1&(UPER1_DCK|UPER1_ECH))==UPER1_DCK) { |
7ed3da3d | 609 | if (upecc(ui, ECC)) |
2601dfbd | 610 | return; |
55de6ac9 BJ |
611 | } else |
612 | um->um_tab.b_active = 0; /* force retry */ | |
7ed3da3d BJ |
613 | } else |
614 | um->um_tab.b_active = 0; /* force retry */ | |
736772ef BJ |
615 | } |
616 | /* | |
617 | * Clear drive error and, every eight attempts, | |
618 | * (starting with the fourth) | |
619 | * recalibrate to clear the slate. | |
620 | */ | |
621 | upaddr->upcs1 = UP_TRE|UP_IE|UP_DCLR|UP_GO; | |
622 | needie = 0; | |
fc4d0a69 | 623 | if ((um->um_tab.b_errcnt&07) == 4 && um->um_tab.b_active == 0) { |
736772ef | 624 | upaddr->upcs1 = UP_RECAL|UP_IE|UP_GO; |
a6442a2f BJ |
625 | sc->sc_recal = 0; |
626 | goto nextrecal; | |
736772ef BJ |
627 | } |
628 | } | |
629 | /* | |
a6442a2f BJ |
630 | * Advance recalibration finite state machine |
631 | * if recalibrate in progress, through | |
632 | * RECAL | |
633 | * SEEK | |
634 | * OFFSET (optional) | |
635 | * RETRY | |
736772ef | 636 | */ |
a6442a2f BJ |
637 | switch (sc->sc_recal) { |
638 | ||
639 | case 1: | |
640 | upaddr->updc = bp->b_cylin; | |
641 | upaddr->upcs1 = UP_SEEK|UP_IE|UP_GO; | |
642 | goto nextrecal; | |
643 | case 2: | |
644 | if (um->um_tab.b_errcnt < 16 || (bp->b_flags&B_READ) == 0) | |
645 | goto donerecal; | |
299d67ed | 646 | upaddr->upof = up_offset[um->um_tab.b_errcnt & 017] | UPOF_FMT22; |
a6442a2f BJ |
647 | upaddr->upcs1 = UP_IE|UP_OFFSET|UP_GO; |
648 | goto nextrecal; | |
649 | nextrecal: | |
650 | sc->sc_recal++; | |
651 | um->um_tab.b_active = 1; | |
652 | return; | |
653 | donerecal: | |
654 | case 3: | |
736772ef | 655 | sc->sc_recal = 0; |
a6442a2f BJ |
656 | um->um_tab.b_active = 0; |
657 | break; | |
736772ef BJ |
658 | } |
659 | /* | |
660 | * If still ``active'', then don't need any more retries. | |
661 | */ | |
662 | if (um->um_tab.b_active) { | |
663 | /* | |
664 | * If we were offset positioning, | |
665 | * return to centerline. | |
666 | */ | |
667 | if (um->um_tab.b_errcnt >= 16) { | |
299d67ed | 668 | upaddr->upof = UPOF_FMT22; |
736772ef | 669 | upaddr->upcs1 = UP_RTC|UP_GO|UP_IE; |
299d67ed | 670 | while (upaddr->upds & UPDS_PIP) |
736772ef | 671 | DELAY(25); |
eb891eaa | 672 | needie = 0; |
008c0481 | 673 | } |
736772ef BJ |
674 | um->um_tab.b_active = 0; |
675 | um->um_tab.b_errcnt = 0; | |
676 | um->um_tab.b_actf = dp->b_forw; | |
677 | dp->b_active = 0; | |
678 | dp->b_errcnt = 0; | |
679 | dp->b_actf = bp->av_forw; | |
680 | bp->b_resid = (-upaddr->upwc * sizeof(short)); | |
681 | iodone(bp); | |
682 | /* | |
683 | * If this unit has more work to do, | |
684 | * then start it up right away. | |
685 | */ | |
686 | if (dp->b_actf) | |
687 | if (upustart(ui)) | |
eb891eaa | 688 | needie = 0; |
008c0481 | 689 | } |
736772ef | 690 | as &= ~(1<<ui->ui_slave); |
8c58f40c BJ |
691 | /* |
692 | * Release unibus resources and flush data paths. | |
693 | */ | |
694 | ubadone(um); | |
736772ef BJ |
695 | doattn: |
696 | /* | |
697 | * Process other units which need attention. | |
698 | * For each unit which needs attention, call | |
699 | * the unit start routine to place the slave | |
700 | * on the controller device queue. | |
701 | */ | |
a6442a2f BJ |
702 | while (unit = ffs(as)) { |
703 | unit--; /* was 1 origin */ | |
704 | as &= ~(1<<unit); | |
705 | upaddr->upas = 1<<unit; | |
c10bcf0a | 706 | if (unit < UPIPUNITS && upustart(upip[sc21][unit])) |
a6442a2f BJ |
707 | needie = 0; |
708 | } | |
736772ef BJ |
709 | /* |
710 | * If the controller is not transferring, but | |
711 | * there are devices ready to transfer, start | |
712 | * the controller. | |
713 | */ | |
3f3a34c3 BJ |
714 | if (um->um_tab.b_actf && um->um_tab.b_active == 0) |
715 | if (upstart(um)) | |
eb891eaa | 716 | needie = 0; |
2a3b9a7f | 717 | if (needie) |
2601dfbd | 718 | upaddr->upcs1 = UP_IE; |
008c0481 BJ |
719 | } |
720 | ||
740e4029 | 721 | upread(dev, uio) |
0801d37f | 722 | dev_t dev; |
740e4029 | 723 | struct uio *uio; |
008c0481 | 724 | { |
0801d37f | 725 | register int unit = minor(dev) >> 3; |
7e00c42b | 726 | |
0801d37f | 727 | if (unit >= NUP) |
0cd5eac7 BJ |
728 | return (ENXIO); |
729 | return (physio(upstrategy, &rupbuf[unit], dev, B_READ, minphys, uio)); | |
008c0481 BJ |
730 | } |
731 | ||
002227dd | 732 | upwrite(dev, uio) |
0801d37f | 733 | dev_t dev; |
002227dd | 734 | struct uio *uio; |
008c0481 | 735 | { |
0801d37f | 736 | register int unit = minor(dev) >> 3; |
7e00c42b | 737 | |
0801d37f | 738 | if (unit >= NUP) |
0cd5eac7 BJ |
739 | return (ENXIO); |
740 | return (physio(upstrategy, &rupbuf[unit], dev, B_WRITE, minphys, uio)); | |
008c0481 BJ |
741 | } |
742 | ||
7bc8d985 BJ |
743 | /* |
744 | * Correct an ECC error, and restart the i/o to complete | |
745 | * the transfer if necessary. This is quite complicated because | |
746 | * the transfer may be going to an odd memory address base and/or | |
747 | * across a page boundary. | |
748 | */ | |
7ed3da3d | 749 | upecc(ui, flag) |
89bd2f01 | 750 | register struct uba_device *ui; |
7ed3da3d | 751 | int flag; |
3b186c1c | 752 | int flag; |
008c0481 | 753 | { |
2601dfbd | 754 | register struct updevice *up = (struct updevice *)ui->ui_addr; |
3f3a34c3 | 755 | register struct buf *bp = uputab[ui->ui_unit].b_actf; |
89bd2f01 | 756 | register struct uba_ctlr *um = ui->ui_mi; |
3f3a34c3 BJ |
757 | register struct upst *st; |
758 | struct uba_regs *ubp = ui->ui_hd->uh_uba; | |
7bc8d985 | 759 | register int i; |
008c0481 | 760 | caddr_t addr; |
7bc8d985 | 761 | int reg, bit, byte, npf, mask, o, cmd, ubaddr; |
008c0481 BJ |
762 | int bn, cn, tn, sn; |
763 | ||
008c0481 | 764 | /* |
7bc8d985 BJ |
765 | * Npf is the number of sectors transferred before the sector |
766 | * containing the ECC error, and reg is the UBA register | |
767 | * mapping (the first part of) the transfer. | |
768 | * O is offset within a memory page of the first byte transferred. | |
008c0481 | 769 | */ |
7ed3da3d BJ |
770 | #ifndef NOBADSECT |
771 | if (flag == CONT) | |
772 | npf = bp->b_error; | |
773 | else | |
774 | #endif | |
775 | npf = btop((up->upwc * sizeof(short)) + bp->b_bcount); | |
b7333467 | 776 | reg = btop(um->um_ubinfo&0x3ffff) + npf; |
008c0481 | 777 | o = (int)bp->b_un.b_addr & PGOFSET; |
008c0481 | 778 | mask = up->upec2; |
299d67ed | 779 | #ifdef UPECCDEBUG |
8c58f40c BJ |
780 | printf("npf %d reg %x o %d mask %o pos %d\n", npf, reg, o, mask, |
781 | up->upec1); | |
299d67ed | 782 | #endif |
7ed3da3d BJ |
783 | bn = dkblock(bp); |
784 | st = &upst[ui->ui_type]; | |
785 | cn = bp->b_cylin; | |
786 | sn = bn%st->nspc + npf; | |
787 | tn = sn/st->nsect; | |
788 | sn %= st->nsect; | |
789 | cn += tn/st->ntrak; | |
790 | tn %= st->ntrak; | |
060afaf6 | 791 | ubapurge(um); |
7ed3da3d | 792 | um->um_tab.b_active=2; |
7bc8d985 | 793 | /* |
7ed3da3d | 794 | * action taken depends on the flag |
7bc8d985 | 795 | */ |
7ed3da3d BJ |
796 | switch(flag){ |
797 | case ECC: | |
798 | npf--; | |
799 | reg--; | |
800 | mask = up->upec2; | |
801 | printf("up%d%c: soft ecc sn%d\n", dkunit(bp), | |
802 | 'a'+(minor(bp->b_dev)&07), bp->b_blkno + npf); | |
803 | /* | |
804 | * Flush the buffered data path, and compute the | |
805 | * byte and bit position of the error. The variable i | |
806 | * is the byte offset in the transfer, the variable byte | |
807 | * is the offset from a page boundary in main memory. | |
808 | */ | |
809 | i = up->upec1 - 1; /* -1 makes 0 origin */ | |
810 | bit = i&07; | |
811 | i = (i&~07)>>3; | |
812 | byte = i + o; | |
813 | /* | |
814 | * Correct while possible bits remain of mask. Since mask | |
815 | * contains 11 bits, we continue while the bit offset is > -11. | |
816 | * Also watch out for end of this block and the end of the whole | |
817 | * transfer. | |
818 | */ | |
819 | while (i < 512 && (int)ptob(npf)+i < bp->b_bcount && bit > -11) { | |
820 | addr = ptob(ubp->uba_map[reg+btop(byte)].pg_pfnum)+ | |
821 | (byte & PGOFSET); | |
822 | #ifdef UPECCDEBUG | |
823 | printf("addr %x map reg %x\n", | |
824 | addr, *(int *)(&ubp->uba_map[reg+btop(byte)])); | |
825 | printf("old: %x, ", getmemc(addr)); | |
826 | #endif | |
827 | putmemc(addr, getmemc(addr)^(mask<<bit)); | |
299d67ed | 828 | #ifdef UPECCDEBUG |
7ed3da3d | 829 | printf("new: %x\n", getmemc(addr)); |
299d67ed | 830 | #endif |
7ed3da3d BJ |
831 | byte++; |
832 | i++; | |
833 | } | |
834 | if (up->upwc == 0) | |
835 | return (0); | |
836 | npf++; | |
837 | reg++; | |
838 | break; | |
839 | #ifndef NOBADSECT | |
840 | case BSE: | |
841 | /* | |
842 | * if not in bad sector table, return 0 | |
843 | */ | |
844 | if ((bn = isbad(&upbad[ui->ui_unit], cn, tn, sn)) < 0) | |
845 | return(0); | |
846 | /* | |
847 | * flag this one as bad | |
848 | */ | |
849 | bp->b_flags |= B_BAD; | |
850 | bp->b_error = npf + 1; | |
299d67ed | 851 | #ifdef UPECCDEBUG |
7ed3da3d BJ |
852 | printf("BSE: restart at %d\n",npf+1); |
853 | #endif | |
854 | bn = st->ncyl * st->nspc -st->nsect - 1 - bn; | |
855 | cn = bn / st->nspc; | |
856 | sn = bn % st->nspc; | |
857 | tn = sn / st->nsect; | |
858 | sn %= st->nsect; | |
859 | up->upwc = -(512 / sizeof (short)); | |
860 | #ifdef UPECCDEBUG | |
861 | printf("revector to cn %d tn %d sn %d\n", cn, tn, sn); | |
862 | #endif | |
863 | break; | |
864 | case CONT: | |
865 | #ifdef UPECCDEBUG | |
866 | printf("upecc, CONT: bn %d cn %d tn %d sn %d\n", bn, cn, tn, sn); | |
867 | #endif | |
868 | bp->b_flags &= ~B_BAD; | |
869 | up->upwc = -((bp->b_bcount - (int)ptob(npf)) / sizeof(short)); | |
870 | if (up->upwc == 0) | |
871 | return(0); | |
872 | break; | |
299d67ed | 873 | #endif |
008c0481 | 874 | } |
55de6ac9 BJ |
875 | if (up->upwc == 0) { |
876 | um->um_tab.b_active = 0; | |
008c0481 | 877 | return (0); |
55de6ac9 | 878 | } |
7ed3da3d | 879 | } |
7bc8d985 BJ |
880 | /* |
881 | * Have to continue the transfer... clear the drive, | |
882 | * and compute the position where the transfer is to continue. | |
883 | * We have completed npf+1 sectors of the transfer already; | |
884 | * restart at offset o of next sector (i.e. in UBA register reg+1). | |
885 | */ | |
2601dfbd BJ |
886 | #ifdef notdef |
887 | up->uper1 = 0; | |
888 | up->upcs1 |= UP_GO; | |
889 | #else | |
890 | up->upcs1 = UP_TRE|UP_IE|UP_DCLR|UP_GO; | |
008c0481 | 891 | up->updc = cn; |
7bc8d985 | 892 | up->upda = (tn << 8) | sn; |
7ed3da3d | 893 | ubaddr = (int)ptob(reg) + o; |
7bc8d985 BJ |
894 | up->upba = ubaddr; |
895 | cmd = (ubaddr >> 8) & 0x300; | |
7ed3da3d BJ |
896 | cmd |= ((bp->b_flags&B_READ)?UP_RCOM:UP_WCOM)|UP_IE|UP_GO; |
897 | um->um_tab.b_errcnt = 0; | |
7bc8d985 | 898 | up->upcs1 = cmd; |
2601dfbd | 899 | #endif |
008c0481 BJ |
900 | return (1); |
901 | } | |
977c2848 BJ |
902 | |
903 | /* | |
904 | * Reset driver after UBA init. | |
905 | * Cancel software state of all pending transfers | |
906 | * and restart all units and the controller. | |
907 | */ | |
3f3a34c3 | 908 | upreset(uban) |
f6d201ff | 909 | int uban; |
977c2848 | 910 | { |
89bd2f01 BJ |
911 | register struct uba_ctlr *um; |
912 | register struct uba_device *ui; | |
3f3a34c3 BJ |
913 | register sc21, unit; |
914 | ||
a3cb8f60 | 915 | for (sc21 = 0; sc21 < NSC; sc21++) { |
7e00c42b BJ |
916 | if ((um = upminfo[sc21]) == 0 || um->um_ubanum != uban || |
917 | um->um_alive == 0) | |
3f3a34c3 | 918 | continue; |
f6d201ff | 919 | printf(" sc%d", sc21); |
3f3a34c3 BJ |
920 | um->um_tab.b_active = 0; |
921 | um->um_tab.b_actf = um->um_tab.b_actl = 0; | |
f6d201ff | 922 | up_softc[sc21].sc_recal = 0; |
cc7ff771 | 923 | up_softc[sc21].sc_wticks = 0; |
b7333467 BJ |
924 | if (um->um_ubinfo) { |
925 | printf("<%d>", (um->um_ubinfo>>28)&0xf); | |
96b997eb | 926 | um->um_ubinfo = 0; |
3f3a34c3 | 927 | } |
299d67ed | 928 | ((struct updevice *)(um->um_addr))->upcs2 = UPCS2_CLR; |
3f3a34c3 BJ |
929 | for (unit = 0; unit < NUP; unit++) { |
930 | if ((ui = updinfo[unit]) == 0) | |
931 | continue; | |
f6d201ff | 932 | if (ui->ui_alive == 0 || ui->ui_mi != um) |
3f3a34c3 BJ |
933 | continue; |
934 | uputab[unit].b_active = 0; | |
935 | (void) upustart(ui); | |
936 | } | |
937 | (void) upstart(um); | |
977c2848 | 938 | } |
977c2848 | 939 | } |
6a81870e BJ |
940 | |
941 | /* | |
942 | * Wake up every second and if an interrupt is pending | |
943 | * but nothing has happened increment a counter. | |
f6d201ff | 944 | * If nothing happens for 20 seconds, reset the UNIBUS |
6a81870e BJ |
945 | * and begin anew. |
946 | */ | |
947 | upwatch() | |
948 | { | |
89bd2f01 | 949 | register struct uba_ctlr *um; |
3f3a34c3 | 950 | register sc21, unit; |
7e00c42b | 951 | register struct up_softc *sc; |
6a81870e | 952 | |
7780575a | 953 | timeout(upwatch, (caddr_t)0, hz); |
a3cb8f60 | 954 | for (sc21 = 0; sc21 < NSC; sc21++) { |
3f3a34c3 | 955 | um = upminfo[sc21]; |
7e00c42b BJ |
956 | if (um == 0 || um->um_alive == 0) |
957 | continue; | |
958 | sc = &up_softc[sc21]; | |
3f3a34c3 BJ |
959 | if (um->um_tab.b_active == 0) { |
960 | for (unit = 0; unit < NUP; unit++) | |
2601dfbd BJ |
961 | if (uputab[unit].b_active && |
962 | updinfo[unit]->ui_mi == um) | |
3f3a34c3 | 963 | goto active; |
7e00c42b | 964 | sc->sc_wticks = 0; |
3f3a34c3 BJ |
965 | continue; |
966 | } | |
f6d201ff | 967 | active: |
7e00c42b BJ |
968 | sc->sc_wticks++; |
969 | if (sc->sc_wticks >= 20) { | |
970 | sc->sc_wticks = 0; | |
f6d201ff | 971 | printf("sc%d: lost interrupt\n", sc21); |
a3cb8f60 | 972 | ubareset(um->um_ubanum); |
3f3a34c3 | 973 | } |
6a81870e BJ |
974 | } |
975 | } | |
0ff318b2 BJ |
976 | |
977 | #define DBSIZE 20 | |
978 | ||
979 | updump(dev) | |
980 | dev_t dev; | |
981 | { | |
2601dfbd | 982 | struct updevice *upaddr; |
0ff318b2 | 983 | char *start; |
a0eab615 | 984 | int num, blk, unit; |
0ff318b2 | 985 | struct size *sizes; |
3f3a34c3 | 986 | register struct uba_regs *uba; |
89bd2f01 | 987 | register struct uba_device *ui; |
0ff318b2 | 988 | register short *rp; |
3f3a34c3 | 989 | struct upst *st; |
cd8ce595 | 990 | register int retry; |
7ed3da3d | 991 | register int retry; |
0ff318b2 | 992 | |
0ff318b2 | 993 | unit = minor(dev) >> 3; |
0c48c799 BJ |
994 | if (unit >= NUP) |
995 | return (ENXIO); | |
7e00c42b | 996 | #define phys(cast, addr) ((cast)((int)addr & 0x7fffffff)) |
89bd2f01 | 997 | ui = phys(struct uba_device *, updinfo[unit]); |
0c48c799 BJ |
998 | if (ui->ui_alive == 0) |
999 | return (ENXIO); | |
3f3a34c3 | 1000 | uba = phys(struct uba_hd *, ui->ui_hd)->uh_physuba; |
89bd2f01 | 1001 | ubainit(uba); |
2601dfbd | 1002 | upaddr = (struct updevice *)ui->ui_physaddr; |
cd8ce595 | 1003 | DELAY(5000000); |
3f3a34c3 | 1004 | num = maxfree; |
0ff318b2 | 1005 | upaddr->upcs2 = unit; |
89bd2f01 | 1006 | DELAY(100); |
cd8ce595 SL |
1007 | upaddr->upcs1 = UP_DCLR|UP_GO; |
1008 | upaddr->upcs1 = UP_PRESET|UP_GO; | |
1009 | upaddr->upof = UPOF_FMT22; | |
1010 | retry = 0; | |
1011 | do { | |
1012 | DELAY(25); | |
1013 | if (++retry > 527) | |
1014 | break; | |
0599cbf1 | 1015 | } while ((upaddr->upds & UP_RDY) == 0); |
299d67ed | 1016 | if ((upaddr->upds & UPDS_DREADY) != UPDS_DREADY) |
0c48c799 | 1017 | return (EFAULT); |
cd8ce595 | 1018 | start = 0; |
7e00c42b | 1019 | st = &upst[ui->ui_type]; |
7ed3da3d | 1020 | start = 0; |
3f3a34c3 | 1021 | sizes = phys(struct size *, st->sizes); |
0c48c799 BJ |
1022 | if (dumplo < 0 || dumplo + num >= sizes[minor(dev)&07].nblocks) |
1023 | return (EINVAL); | |
0ff318b2 BJ |
1024 | while (num > 0) { |
1025 | register struct pte *io; | |
1026 | register int i; | |
1027 | int cn, sn, tn; | |
1028 | daddr_t bn; | |
1029 | ||
1030 | blk = num > DBSIZE ? DBSIZE : num; | |
3f3a34c3 | 1031 | io = uba->uba_map; |
0ff318b2 | 1032 | for (i = 0; i < blk; i++) |
89bd2f01 | 1033 | *(int *)io++ = (btop(start)+i) | (1<<21) | UBAMR_MRV; |
0ff318b2 BJ |
1034 | *(int *)io = 0; |
1035 | bn = dumplo + btop(start); | |
71236e46 BJ |
1036 | cn = bn/st->nspc + sizes[minor(dev)&07].cyloff; |
1037 | sn = bn%st->nspc; | |
1038 | tn = sn/st->nsect; | |
1039 | sn = sn%st->nsect; | |
0ff318b2 BJ |
1040 | upaddr->updc = cn; |
1041 | rp = (short *) &upaddr->upda; | |
1042 | *rp = (tn << 8) + sn; | |
1043 | *--rp = 0; | |
1044 | *--rp = -blk*NBPG / sizeof (short); | |
2601dfbd | 1045 | *--rp = UP_GO|UP_WCOM; |
cd8ce595 | 1046 | retry = 0; |
7ed3da3d | 1047 | retry = 0; |
0ff318b2 BJ |
1048 | do { |
1049 | DELAY(25); | |
cd8ce595 SL |
1050 | if (++retry > 527) |
1051 | break; | |
7ed3da3d BJ |
1052 | if (++retry > 527) |
1053 | break; | |
2601dfbd | 1054 | } while ((upaddr->upcs1 & UP_RDY) == 0); |
cd8ce595 | 1055 | if ((upaddr->upds & UPDS_DREADY) != UPDS_DREADY) { |
0599cbf1 | 1056 | printf("up%d: not ready", unit); |
cd8ce595 SL |
1057 | if ((upaddr->upds & UPDS_DREADY) != UPDS_DREADY) { |
1058 | printf("\n"); | |
1059 | return (EIO); | |
1060 | } | |
1061 | printf(" (flakey)\n"); | |
1062 | } | |
7ed3da3d BJ |
1063 | if ((upaddr->upds & UPDS_DREADY) != UPDS_DREADY) { |
1064 | printf("up%d: not ready", unit); | |
1065 | if ((upaddr->upds & UPDS_DREADY) != UPDS_DREADY) { | |
1066 | printf("\n"); | |
1067 | return (EIO); | |
1068 | } | |
1069 | printf(" (flakey)\n"); | |
1070 | } | |
299d67ed | 1071 | if (upaddr->upds&UPDS_ERR) |
0c48c799 | 1072 | return (EIO); |
0ff318b2 BJ |
1073 | start += blk*NBPG; |
1074 | num -= blk; | |
1075 | } | |
0ff318b2 BJ |
1076 | return (0); |
1077 | } | |
63c35a63 | 1078 | #endif |