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42#include "aic79xx_osm.h"
43#include "aic79xx_inline.h"
44
45static void copy_mem_info(struct info_str *info, char *data, int len);
46static int copy_info(struct info_str *info, char *fmt, ...);
47static void ahd_dump_target_state(struct ahd_softc *ahd,
48 struct info_str *info,
49 u_int our_id, char channel,
50 u_int target_id);
51static void ahd_dump_device_state(struct info_str *info,
52 struct scsi_device *sdev);
53static int ahd_proc_write_seeprom(struct ahd_softc *ahd,
54 char *buffer, int length);
55
56
57
58
59
60static const struct {
61 u_int period_factor;
62 u_int period;
63} scsi_syncrates[] = {
64 { 0x08, 625 },
65 { 0x09, 1250 },
66 { 0x0a, 2500 },
67 { 0x0b, 3030 },
68 { 0x0c, 5000 }
69};
70
71
72
73
74
75static u_int
76ahd_calc_syncsrate(u_int period_factor)
77{
78 int i;
79
80
81 for (i = 0; i < ARRAY_SIZE(scsi_syncrates); i++) {
82
83 if (period_factor == scsi_syncrates[i].period_factor) {
84
85 return (100000000 / scsi_syncrates[i].period);
86 }
87 }
88
89
90
91
92
93 return (10000000 / (period_factor * 4 * 10));
94}
95
96
97static void
98copy_mem_info(struct info_str *info, char *data, int len)
99{
100 if (info->pos + len > info->offset + info->length)
101 len = info->offset + info->length - info->pos;
102
103 if (info->pos + len < info->offset) {
104 info->pos += len;
105 return;
106 }
107
108 if (info->pos < info->offset) {
109 off_t partial;
110
111 partial = info->offset - info->pos;
112 data += partial;
113 info->pos += partial;
114 len -= partial;
115 }
116
117 if (len > 0) {
118 memcpy(info->buffer, data, len);
119 info->pos += len;
120 info->buffer += len;
121 }
122}
123
124static int
125copy_info(struct info_str *info, char *fmt, ...)
126{
127 va_list args;
128 char buf[256];
129 int len;
130
131 va_start(args, fmt);
132 len = vsprintf(buf, fmt, args);
133 va_end(args);
134
135 copy_mem_info(info, buf, len);
136 return (len);
137}
138
139static void
140ahd_format_transinfo(struct info_str *info, struct ahd_transinfo *tinfo)
141{
142 u_int speed;
143 u_int freq;
144 u_int mb;
145
146 if (tinfo->period == AHD_PERIOD_UNKNOWN) {
147 copy_info(info, "Renegotiation Pending\n");
148 return;
149 }
150 speed = 3300;
151 freq = 0;
152 if (tinfo->offset != 0) {
153 freq = ahd_calc_syncsrate(tinfo->period);
154 speed = freq;
155 }
156 speed *= (0x01 << tinfo->width);
157 mb = speed / 1000;
158 if (mb > 0)
159 copy_info(info, "%d.%03dMB/s transfers", mb, speed % 1000);
160 else
161 copy_info(info, "%dKB/s transfers", speed);
162
163 if (freq != 0) {
164 int printed_options;
165
166 printed_options = 0;
167 copy_info(info, " (%d.%03dMHz", freq / 1000, freq % 1000);
168 if ((tinfo->ppr_options & MSG_EXT_PPR_RD_STRM) != 0) {
169 copy_info(info, " RDSTRM");
170 printed_options++;
171 }
172 if ((tinfo->ppr_options & MSG_EXT_PPR_DT_REQ) != 0) {
173 copy_info(info, "%s", printed_options ? "|DT" : " DT");
174 printed_options++;
175 }
176 if ((tinfo->ppr_options & MSG_EXT_PPR_IU_REQ) != 0) {
177 copy_info(info, "%s", printed_options ? "|IU" : " IU");
178 printed_options++;
179 }
180 if ((tinfo->ppr_options & MSG_EXT_PPR_RTI) != 0) {
181 copy_info(info, "%s",
182 printed_options ? "|RTI" : " RTI");
183 printed_options++;
184 }
185 if ((tinfo->ppr_options & MSG_EXT_PPR_QAS_REQ) != 0) {
186 copy_info(info, "%s",
187 printed_options ? "|QAS" : " QAS");
188 printed_options++;
189 }
190 }
191
192 if (tinfo->width > 0) {
193 if (freq != 0) {
194 copy_info(info, ", ");
195 } else {
196 copy_info(info, " (");
197 }
198 copy_info(info, "%dbit)", 8 * (0x01 << tinfo->width));
199 } else if (freq != 0) {
200 copy_info(info, ")");
201 }
202 copy_info(info, "\n");
203}
204
205static void
206ahd_dump_target_state(struct ahd_softc *ahd, struct info_str *info,
207 u_int our_id, char channel, u_int target_id)
208{
209 struct scsi_target *starget;
210 struct ahd_initiator_tinfo *tinfo;
211 struct ahd_tmode_tstate *tstate;
212 int lun;
213
214 tinfo = ahd_fetch_transinfo(ahd, channel, our_id,
215 target_id, &tstate);
216 copy_info(info, "Target %d Negotiation Settings\n", target_id);
217 copy_info(info, "\tUser: ");
218 ahd_format_transinfo(info, &tinfo->user);
219 starget = ahd->platform_data->starget[target_id];
220 if (starget == NULL)
221 return;
222
223 copy_info(info, "\tGoal: ");
224 ahd_format_transinfo(info, &tinfo->goal);
225 copy_info(info, "\tCurr: ");
226 ahd_format_transinfo(info, &tinfo->curr);
227
228 for (lun = 0; lun < AHD_NUM_LUNS; lun++) {
229 struct scsi_device *dev;
230
231 dev = scsi_device_lookup_by_target(starget, lun);
232
233 if (dev == NULL)
234 continue;
235
236 ahd_dump_device_state(info, dev);
237 }
238}
239
240static void
241ahd_dump_device_state(struct info_str *info, struct scsi_device *sdev)
242{
243 struct ahd_linux_device *dev = scsi_transport_device_data(sdev);
244
245 copy_info(info, "\tChannel %c Target %d Lun %d Settings\n",
246 sdev->sdev_target->channel + 'A',
247 sdev->sdev_target->id, sdev->lun);
248
249 copy_info(info, "\t\tCommands Queued %ld\n", dev->commands_issued);
250 copy_info(info, "\t\tCommands Active %d\n", dev->active);
251 copy_info(info, "\t\tCommand Openings %d\n", dev->openings);
252 copy_info(info, "\t\tMax Tagged Openings %d\n", dev->maxtags);
253 copy_info(info, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen);
254}
255
256static int
257ahd_proc_write_seeprom(struct ahd_softc *ahd, char *buffer, int length)
258{
259 ahd_mode_state saved_modes;
260 int have_seeprom;
261 u_long s;
262 int paused;
263 int written;
264
265
266 written = -EINVAL;
267 ahd_lock(ahd, &s);
268 paused = ahd_is_paused(ahd);
269 if (!paused)
270 ahd_pause(ahd);
271
272 saved_modes = ahd_save_modes(ahd);
273 ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
274 if (length != sizeof(struct seeprom_config)) {
275 printk("ahd_proc_write_seeprom: incorrect buffer size\n");
276 goto done;
277 }
278
279 have_seeprom = ahd_verify_cksum((struct seeprom_config*)buffer);
280 if (have_seeprom == 0) {
281 printk("ahd_proc_write_seeprom: cksum verification failed\n");
282 goto done;
283 }
284
285 have_seeprom = ahd_acquire_seeprom(ahd);
286 if (!have_seeprom) {
287 printk("ahd_proc_write_seeprom: No Serial EEPROM\n");
288 goto done;
289 } else {
290 u_int start_addr;
291
292 if (ahd->seep_config == NULL) {
293 ahd->seep_config = kmalloc(sizeof(*ahd->seep_config), GFP_ATOMIC);
294 if (ahd->seep_config == NULL) {
295 printk("aic79xx: Unable to allocate serial "
296 "eeprom buffer. Write failing\n");
297 goto done;
298 }
299 }
300 printk("aic79xx: Writing Serial EEPROM\n");
301 start_addr = 32 * (ahd->channel - 'A');
302 ahd_write_seeprom(ahd, (u_int16_t *)buffer, start_addr,
303 sizeof(struct seeprom_config)/2);
304 ahd_read_seeprom(ahd, (uint16_t *)ahd->seep_config,
305 start_addr, sizeof(struct seeprom_config)/2,
306 FALSE);
307 ahd_release_seeprom(ahd);
308 written = length;
309 }
310
311done:
312 ahd_restore_modes(ahd, saved_modes);
313 if (!paused)
314 ahd_unpause(ahd);
315 ahd_unlock(ahd, &s);
316 return (written);
317}
318
319
320
321int
322ahd_linux_proc_info(struct Scsi_Host *shost, char *buffer, char **start,
323 off_t offset, int length, int inout)
324{
325 struct ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata;
326 struct info_str info;
327 char ahd_info[256];
328 u_int max_targ;
329 u_int i;
330 int retval;
331
332
333 if (inout == TRUE) {
334 retval = ahd_proc_write_seeprom(ahd, buffer, length);
335 goto done;
336 }
337
338 if (start)
339 *start = buffer;
340
341 info.buffer = buffer;
342 info.length = length;
343 info.offset = offset;
344 info.pos = 0;
345
346 copy_info(&info, "Adaptec AIC79xx driver version: %s\n",
347 AIC79XX_DRIVER_VERSION);
348 copy_info(&info, "%s\n", ahd->description);
349 ahd_controller_info(ahd, ahd_info);
350 copy_info(&info, "%s\n", ahd_info);
351 copy_info(&info, "Allocated SCBs: %d, SG List Length: %d\n\n",
352 ahd->scb_data.numscbs, AHD_NSEG);
353
354 max_targ = 16;
355
356 if (ahd->seep_config == NULL)
357 copy_info(&info, "No Serial EEPROM\n");
358 else {
359 copy_info(&info, "Serial EEPROM:\n");
360 for (i = 0; i < sizeof(*ahd->seep_config)/2; i++) {
361 if (((i % 8) == 0) && (i != 0)) {
362 copy_info(&info, "\n");
363 }
364 copy_info(&info, "0x%.4x ",
365 ((uint16_t*)ahd->seep_config)[i]);
366 }
367 copy_info(&info, "\n");
368 }
369 copy_info(&info, "\n");
370
371 if ((ahd->features & AHD_WIDE) == 0)
372 max_targ = 8;
373
374 for (i = 0; i < max_targ; i++) {
375
376 ahd_dump_target_state(ahd, &info, ahd->our_id, 'A',
377 i);
378 }
379 retval = info.pos > info.offset ? info.pos - info.offset : 0;
380done:
381 return (retval);
382}
383
