File: /usr/src/linux/drivers/scsi/eata_dma_proc.c
1 void swap_statistics(u8 *p)
2 {
3 u32 y;
4 u32 *lp, h_lp;
5 u16 *sp, h_sp;
6 u8 *bp;
7
8 lp = (u32 *)p;
9 sp = ((short *)lp) + 1; /* Convert Header */
10 h_sp = *sp = ntohs(*sp);
11 lp++;
12
13 do {
14 sp = (u16 *)lp; /* Convert SubHeader */
15 *sp = ntohs(*sp);
16 bp = (u8 *) lp;
17 y = *(bp + 3);
18 lp++;
19 for (h_lp = (u32)lp; (u32)lp < h_lp + ((u32)*(bp + 3)); lp++)
20 *lp = ntohl(*lp);
21 }while ((u32)lp < ((u32)p) + 4 + h_sp);
22
23 }
24
25 /*
26 * eata_set_info
27 * buffer : pointer to the data that has been written to the hostfile
28 * length : number of bytes written to the hostfile
29 * HBA_ptr: pointer to the Scsi_Host struct
30 */
31 int eata_set_info(char *buffer, int length, struct Scsi_Host *HBA_ptr)
32 {
33 int orig_length = length;
34
35 if (length >= 8 && strncmp(buffer, "eata_dma", 8) == 0) {
36 buffer += 9;
37 length -= 9;
38 if(length >= 8 && strncmp(buffer, "latency", 7) == 0) {
39 SD(HBA_ptr)->do_latency = TRUE;
40 return(orig_length);
41 }
42
43 if(length >=10 && strncmp(buffer, "nolatency", 9) == 0) {
44 SD(HBA_ptr)->do_latency = FALSE;
45 return(orig_length);
46 }
47
48 printk("Unknown command:%s length: %d\n", buffer, length);
49 } else
50 printk("Wrong Signature:%10s\n", buffer);
51
52 return(-EINVAL);
53 }
54
55 /*
56 * eata_proc_info
57 * inout : decides on the direction of the dataflow and the meaning of the
58 * variables
59 * buffer: If inout==FALSE data is being written to it else read from it
60 * *start: If inout==FALSE start of the valid data in the buffer
61 * offset: If inout==FALSE offset from the beginning of the imaginary file
62 * from which we start writing into the buffer
63 * length: If inout==FALSE max number of bytes to be written into the buffer
64 * else number of bytes in the buffer
65 */
66 int eata_proc_info(char *buffer, char **start, off_t offset, int length,
67 int hostno, int inout)
68 {
69
70 Scsi_Device *scd, *SDev;
71 struct Scsi_Host *HBA_ptr;
72 Scsi_Request * scmd;
73 char cmnd[MAX_COMMAND_SIZE];
74 static u8 buff[512];
75 static u8 buff2[512];
76 hst_cmd_stat *rhcs, *whcs;
77 coco *cc;
78 scsitrans *st;
79 scsimod *sm;
80 hobu *hb;
81 scbu *sb;
82 boty *bt;
83 memco *mc;
84 firm *fm;
85 subinf *si;
86 pcinf *pi;
87 arrlim *al;
88 int i, x;
89 int size, len = 0;
90 off_t begin = 0;
91 off_t pos = 0;
92 scd = NULL;
93
94 HBA_ptr = first_HBA;
95 for (i = 1; i <= registered_HBAs; i++) {
96 if (HBA_ptr->host_no == hostno)
97 break;
98 HBA_ptr = SD(HBA_ptr)->next;
99 }
100
101 if(inout == TRUE) /* Has data been written to the file ? */
102 return(eata_set_info(buffer, length, HBA_ptr));
103
104 if (offset == 0)
105 memset(buff, 0, sizeof(buff));
106
107 cc = (coco *) (buff + 0x148);
108 st = (scsitrans *)(buff + 0x164);
109 sm = (scsimod *) (buff + 0x16c);
110 hb = (hobu *) (buff + 0x172);
111 sb = (scbu *) (buff + 0x178);
112 bt = (boty *) (buff + 0x17e);
113 mc = (memco *) (buff + 0x186);
114 fm = (firm *) (buff + 0x18e);
115 si = (subinf *) (buff + 0x196);
116 pi = (pcinf *) (buff + 0x19c);
117 al = (arrlim *) (buff + 0x1a2);
118
119 size = sprintf(buffer+len, "EATA (Extended Attachment) driver version: "
120 "%d.%d%s\n",VER_MAJOR, VER_MINOR, VER_SUB);
121 len += size; pos = begin + len;
122 size = sprintf(buffer + len, "queued commands: %10ld\n"
123 "processed interrupts:%10ld\n", queue_counter, int_counter);
124 len += size; pos = begin + len;
125
126 size = sprintf(buffer + len, "\nscsi%-2d: HBA %.10s\n",
127 HBA_ptr->host_no, SD(HBA_ptr)->name);
128 len += size;
129 pos = begin + len;
130 size = sprintf(buffer + len, "Firmware revision: v%s\n",
131 SD(HBA_ptr)->revision);
132 len += size;
133 pos = begin + len;
134 size = sprintf(buffer + len, "Hardware Configuration:\n");
135 len += size;
136 pos = begin + len;
137
138 if(SD(HBA_ptr)->broken_INQUIRY == TRUE) {
139 if (HBA_ptr->dma_channel == BUSMASTER)
140 size = sprintf(buffer + len, "DMA: BUSMASTER\n");
141 else
142 size = sprintf(buffer + len, "DMA: %d\n", HBA_ptr->dma_channel);
143 len += size;
144 pos = begin + len;
145
146 size = sprintf(buffer + len, "Base IO : %#.4x\n", (u32) HBA_ptr->base);
147 len += size;
148 pos = begin + len;
149
150 size = sprintf(buffer + len, "Host Bus: EISA\n");
151 len += size;
152 pos = begin + len;
153
154 } else {
155 SDev = scsi_get_host_dev(HBA_ptr);
156
157 if(SDev == NULL)
158 return -ENOMEM;
159
160 scmd = scsi_allocate_request(SDev);
161
162 if(scmd == NULL)
163 {
164 scsi_free_host_dev(SDev);
165 return -ENOMEM;
166 }
167
168
169 cmnd[0] = LOG_SENSE;
170 cmnd[1] = 0;
171 cmnd[2] = 0x33 + (3<<6);
172 cmnd[3] = 0;
173 cmnd[4] = 0;
174 cmnd[5] = 0;
175 cmnd[6] = 0;
176 cmnd[7] = 0x00;
177 cmnd[8] = 0x66;
178 cmnd[9] = 0;
179
180 scmd->sr_cmd_len = 10;
181 scmd->sr_data_direction = SCSI_DATA_READ;
182
183 /*
184 * Do the command and wait for it to finish.
185 */
186 scsi_wait_req (scmd, cmnd, buff + 0x144, 0x66,
187 1 * HZ, 1);
188
189 size = sprintf(buffer + len, "IRQ: %2d, %s triggered\n", cc->interrupt,
190 (cc->intt == TRUE)?"level":"edge");
191 len += size;
192 pos = begin + len;
193 if (HBA_ptr->dma_channel == 0xff)
194 size = sprintf(buffer + len, "DMA: BUSMASTER\n");
195 else
196 size = sprintf(buffer + len, "DMA: %d\n", HBA_ptr->dma_channel);
197 len += size;
198 pos = begin + len;
199 size = sprintf(buffer + len, "CPU: MC680%02d %dMHz\n", bt->cpu_type,
200 bt->cpu_speed);
201 len += size;
202 pos = begin + len;
203 size = sprintf(buffer + len, "Base IO : %#.4x\n", (u32) HBA_ptr->base);
204 len += size;
205 pos = begin + len;
206 size = sprintf(buffer + len, "Host Bus: %s\n",
207 (SD(HBA_ptr)->bustype == IS_PCI)?"PCI ":
208 (SD(HBA_ptr)->bustype == IS_EISA)?"EISA":"ISA ");
209
210 len += size;
211 pos = begin + len;
212 size = sprintf(buffer + len, "SCSI Bus:%s%s Speed: %sMB/sec. %s\n",
213 (sb->wide == TRUE)?" WIDE":"",
214 (sb->dif == TRUE)?" DIFFERENTIAL":"",
215 (sb->speed == 0)?"5":(sb->speed == 1)?"10":"20",
216 (sb->ext == TRUE)?"With external cable detection":"");
217 len += size;
218 pos = begin + len;
219 size = sprintf(buffer + len, "SCSI channel expansion Module: %s present\n",
220 (bt->sx1 == TRUE)?"SX1 (one channel)":
221 ((bt->sx2 == TRUE)?"SX2 (two channels)":"not"));
222 len += size;
223 pos = begin + len;
224 size = sprintf(buffer + len, "SmartRAID hardware: %spresent.\n",
225 (cc->srs == TRUE)?"":"not ");
226 len += size;
227 pos = begin + len;
228 size = sprintf(buffer + len, " Type: %s\n",
229 ((cc->key == TRUE)?((bt->dmi == TRUE)?"integrated"
230 :((bt->dm4 == TRUE)?"DM401X"
231 :(bt->dm4k == TRUE)?"DM4000"
232 :"-"))
233 :"-"));
234 len += size;
235 pos = begin + len;
236
237 size = sprintf(buffer + len, " Max array groups: %d\n",
238 (al->code == 0x0e)?al->max_groups:7);
239 len += size;
240 pos = begin + len;
241 size = sprintf(buffer + len, " Max drives per RAID 0 array: %d\n",
242 (al->code == 0x0e)?al->raid0_drv:7);
243 len += size;
244 pos = begin + len;
245 size = sprintf(buffer + len, " Max drives per RAID 3/5 array: %d\n",
246 (al->code == 0x0e)?al->raid35_drv:7);
247 len += size;
248 pos = begin + len;
249 size = sprintf(buffer + len, "Cache Module: %spresent.\n",
250 (cc->csh)?"":"not ");
251 len += size;
252 pos = begin + len;
253 size = sprintf(buffer + len, " Type: %s\n",
254 ((cc->csh == TRUE)?((bt->cmi == TRUE)?"integrated"
255 :((bt->cm4 == TRUE)?"CM401X"
256 :((bt->cm4k == TRUE)?"CM4000"
257 :"-")))
258 :"-"));
259 len += size;
260 pos = begin + len;
261 for (x = 0; x <= 3; x++) {
262 size = sprintf(buffer + len, " Bank%d: %dMB with%s ECC\n",x,
263 mc->banksize[x] & 0x7f,
264 (mc->banksize[x] & 0x80)?"":"out");
265 len += size;
266 pos = begin + len;
267 }
268 size = sprintf(buffer + len, "Timer Mod.: %spresent\n",
269 (cc->tmr == TRUE)?"":"not ");
270 len += size;
271 pos = begin + len;
272 size = sprintf(buffer + len, "NVRAM : %spresent\n",
273 (cc->nvr == TRUE)?"":"not ");
274 len += size;
275 pos = begin + len;
276 size = sprintf(buffer + len, "SmartROM : %sabled\n",
277 (bt->srom == TRUE)?"dis":"en");
278 len += size;
279 pos = begin + len;
280 size = sprintf(buffer + len, "Alarm : %s\n",
281 (bt->alrm == TRUE)?"on":"off");
282 len += size;
283 pos = begin + len;
284
285 if (pos < offset) {
286 len = 0;
287 begin = pos;
288 }
289 if (pos > offset + length)
290 goto stop_output;
291
292 if(SD(HBA_ptr)->do_latency == FALSE) {
293
294 cmnd[0] = LOG_SENSE;
295 cmnd[1] = 0;
296 cmnd[2] = 0x32 + (3<<6);
297 cmnd[3] = 0;
298 cmnd[4] = 0;
299 cmnd[5] = 0;
300 cmnd[6] = 0;
301 cmnd[7] = 0x01;
302 cmnd[8] = 0x44;
303 cmnd[9] = 0;
304
305 scmd->sr_cmd_len = 10;
306 scmd->sr_data_direction = SCSI_DATA_READ;
307
308 /*
309 * Do the command and wait for it to finish.
310 */
311 scsi_wait_req (scmd, cmnd, buff2, 0x144,
312 1 * HZ, 1);
313
314 swap_statistics(buff2);
315 rhcs = (hst_cmd_stat *)(buff2 + 0x2c);
316 whcs = (hst_cmd_stat *)(buff2 + 0x8c);
317
318 for (x = 0; x <= 11; x++) {
319 SD(HBA_ptr)->reads[x] += rhcs->sizes[x];
320 SD(HBA_ptr)->writes[x] += whcs->sizes[x];
321 SD(HBA_ptr)->reads[12] += rhcs->sizes[x];
322 SD(HBA_ptr)->writes[12] += whcs->sizes[x];
323 }
324 size = sprintf(buffer + len, "Host<->Disk command statistics:\n"
325 " Reads: Writes:\n");
326 len += size;
327 pos = begin + len;
328 for (x = 0; x <= 10; x++) {
329 size = sprintf(buffer+len,"%5dk:%12u %12u\n", 1 << x,
330 SD(HBA_ptr)->reads[x],
331 SD(HBA_ptr)->writes[x]);
332 len += size;
333 pos = begin + len;
334 }
335 size = sprintf(buffer+len,">1024k:%12u %12u\n",
336 SD(HBA_ptr)->reads[11],
337 SD(HBA_ptr)->writes[11]);
338 len += size;
339 pos = begin + len;
340 size = sprintf(buffer+len,"Sum :%12u %12u\n",
341 SD(HBA_ptr)->reads[12],
342 SD(HBA_ptr)->writes[12]);
343 len += size;
344 pos = begin + len;
345 }
346
347 scsi_release_request(scmd);
348 scsi_free_host_dev(SDev);
349 }
350
351 if (pos < offset) {
352 len = 0;
353 begin = pos;
354 }
355 if (pos > offset + length)
356 goto stop_output;
357
358 if(SD(HBA_ptr)->do_latency == TRUE) {
359 int factor = 1024/HZ;
360 size = sprintf(buffer + len, "Host Latency Command Statistics:\n"
361 "Current timer resolution: %2dms\n"
362 " Reads: Min:(ms) Max:(ms) Ave:(ms)\n",
363 factor);
364 len += size;
365 pos = begin + len;
366 for (x = 0; x <= 10; x++) {
367 size = sprintf(buffer+len,"%5dk:%12u %12u %12u %12u\n",
368 1 << x,
369 SD(HBA_ptr)->reads_lat[x][0],
370 (SD(HBA_ptr)->reads_lat[x][1] == 0xffffffff)
371 ? 0:(SD(HBA_ptr)->reads_lat[x][1] * factor),
372 SD(HBA_ptr)->reads_lat[x][2] * factor,
373 SD(HBA_ptr)->reads_lat[x][3] * factor /
374 ((SD(HBA_ptr)->reads_lat[x][0])
375 ? SD(HBA_ptr)->reads_lat[x][0]:1));
376 len += size;
377 pos = begin + len;
378 }
379 size = sprintf(buffer+len,">1024k:%12u %12u %12u %12u\n",
380 SD(HBA_ptr)->reads_lat[11][0],
381 (SD(HBA_ptr)->reads_lat[11][1] == 0xffffffff)
382 ? 0:(SD(HBA_ptr)->reads_lat[11][1] * factor),
383 SD(HBA_ptr)->reads_lat[11][2] * factor,
384 SD(HBA_ptr)->reads_lat[11][3] * factor /
385 ((SD(HBA_ptr)->reads_lat[x][0])
386 ? SD(HBA_ptr)->reads_lat[x][0]:1));
387 len += size;
388 pos = begin + len;
389
390 if (pos < offset) {
391 len = 0;
392 begin = pos;
393 }
394 if (pos > offset + length)
395 goto stop_output;
396
397 size = sprintf(buffer + len,
398 " Writes: Min:(ms) Max:(ms) Ave:(ms)\n");
399 len += size;
400 pos = begin + len;
401 for (x = 0; x <= 10; x++) {
402 size = sprintf(buffer+len,"%5dk:%12u %12u %12u %12u\n",
403 1 << x,
404 SD(HBA_ptr)->writes_lat[x][0],
405 (SD(HBA_ptr)->writes_lat[x][1] == 0xffffffff)
406 ? 0:(SD(HBA_ptr)->writes_lat[x][1] * factor),
407 SD(HBA_ptr)->writes_lat[x][2] * factor,
408 SD(HBA_ptr)->writes_lat[x][3] * factor /
409 ((SD(HBA_ptr)->writes_lat[x][0])
410 ? SD(HBA_ptr)->writes_lat[x][0]:1));
411 len += size;
412 pos = begin + len;
413 }
414 size = sprintf(buffer+len,">1024k:%12u %12u %12u %12u\n",
415 SD(HBA_ptr)->writes_lat[11][0],
416 (SD(HBA_ptr)->writes_lat[11][1] == 0xffffffff)
417 ? 0:(SD(HBA_ptr)->writes_lat[x][1] * factor),
418 SD(HBA_ptr)->writes_lat[11][2] * factor,
419 SD(HBA_ptr)->writes_lat[11][3] * factor /
420 ((SD(HBA_ptr)->writes_lat[x][0])
421 ? SD(HBA_ptr)->writes_lat[x][0]:1));
422 len += size;
423 pos = begin + len;
424
425 if (pos < offset) {
426 len = 0;
427 begin = pos;
428 }
429 if (pos > offset + length)
430 goto stop_output;
431 }
432
433 size = sprintf(buffer+len,"Attached devices: %s\n",
434 (HBA_ptr->host_queue)?"":"none");
435 len += size;
436 pos = begin + len;
437
438 for(scd = HBA_ptr->host_queue; scd; scd = scd->next) {
439 proc_print_scsidevice(scd, buffer, &size, len);
440 len += size;
441 pos = begin + len;
442
443 if (pos < offset) {
444 len = 0;
445 begin = pos;
446 }
447 if (pos > offset + length)
448 goto stop_output;
449 }
450
451 stop_output:
452 DBG(DBG_PROC, printk("2pos: %ld offset: %ld len: %d\n", pos, offset, len));
453 *start=buffer+(offset-begin); /* Start of wanted data */
454 len-=(offset-begin); /* Start slop */
455 if(len>length)
456 len = length; /* Ending slop */
457 DBG(DBG_PROC, printk("3pos: %ld offset: %ld len: %d\n", pos, offset, len));
458
459 return (len);
460 }
461
462 /*
463 * Overrides for Emacs so that we follow Linus's tabbing style.
464 * Emacs will notice this stuff at the end of the file and automatically
465 * adjust the settings for this buffer only. This must remain at the end
466 * of the file.
467 * ---------------------------------------------------------------------------
468 * Local variables:
469 * c-indent-level: 4
470 * c-brace-imaginary-offset: 0
471 * c-brace-offset: -4
472 * c-argdecl-indent: 4
473 * c-label-offset: -4
474 * c-continued-statement-offset: 4
475 * c-continued-brace-offset: 0
476 * tab-width: 8
477 * End:
478 */
479