2 * Copyright (c) 2000-2001 Adaptec Inc.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions, and the following disclaimer,
10 * without modification.
11 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
12 * substantially similar to the "NO WARRANTY" disclaimer below
13 * ("Disclaimer") and any redistribution must be conditioned upon
14 * including a substantially similar Disclaimer requirement for further
15 * binary redistribution.
16 * 3. Neither the names of the above-listed copyright holders nor the names
17 * of any contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
20 * Alternatively, this software may be distributed under the terms of the
21 * GNU General Public License ("GPL") version 2 as published by the Free
22 * Software Foundation.
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
27 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
28 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
29 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
33 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
34 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGES.
37 * String handling code courtesy of Gerard Roudier's <groudier@club-internet.fr>
40 * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic79xx_proc.c#19 $
42 #include "aic79xx_osm.h"
43 #include "aic79xx_inline.h"
45 static void copy_mem_info(struct info_str *info, char *data, int len);
46 static int copy_info(struct info_str *info, char *fmt, ...);
47 static 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, u_int target_offset);
51 static void ahd_dump_device_state(struct info_str *info,
52 struct scsi_device *sdev);
53 static int ahd_proc_write_seeprom(struct ahd_softc *ahd,
54 char *buffer, int length);
57 * Table of syncrates that don't follow the "divisible by 4"
58 * rule. This table will be expanded in future SCSI specs.
62 u_int period; /* in 100ths of ns */
63 } scsi_syncrates[] = {
64 { 0x08, 625 }, /* FAST-160 */
65 { 0x09, 1250 }, /* FAST-80 */
66 { 0x0a, 2500 }, /* FAST-40 40MHz */
67 { 0x0b, 3030 }, /* FAST-40 33MHz */
68 { 0x0c, 5000 } /* FAST-20 */
72 * Return the frequency in kHz corresponding to the given
76 ahd_calc_syncsrate(u_int period_factor)
80 /* See if the period is in the "exception" table */
81 for (i = 0; i < ARRAY_SIZE(scsi_syncrates); i++) {
83 if (period_factor == scsi_syncrates[i].period_factor) {
85 return (100000000 / scsi_syncrates[i].period);
90 * Wasn't in the table, so use the standard
93 return (10000000 / (period_factor * 4 * 10));
98 copy_mem_info(struct info_str *info, char *data, int len)
100 if (info->pos + len > info->offset + info->length)
101 len = info->offset + info->length - info->pos;
103 if (info->pos + len < info->offset) {
108 if (info->pos < info->offset) {
111 partial = info->offset - info->pos;
113 info->pos += partial;
118 memcpy(info->buffer, data, len);
125 copy_info(struct info_str *info, char *fmt, ...)
132 len = vsprintf(buf, fmt, args);
135 copy_mem_info(info, buf, len);
140 ahd_format_transinfo(struct info_str *info, struct ahd_transinfo *tinfo)
146 if (tinfo->period == AHD_PERIOD_UNKNOWN) {
147 copy_info(info, "Renegotiation Pending\n");
152 if (tinfo->offset != 0) {
153 freq = ahd_calc_syncsrate(tinfo->period);
156 speed *= (0x01 << tinfo->width);
159 copy_info(info, "%d.%03dMB/s transfers", mb, speed % 1000);
161 copy_info(info, "%dKB/s transfers", speed);
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");
172 if ((tinfo->ppr_options & MSG_EXT_PPR_DT_REQ) != 0) {
173 copy_info(info, "%s", printed_options ? "|DT" : " DT");
176 if ((tinfo->ppr_options & MSG_EXT_PPR_IU_REQ) != 0) {
177 copy_info(info, "%s", printed_options ? "|IU" : " IU");
180 if ((tinfo->ppr_options & MSG_EXT_PPR_RTI) != 0) {
181 copy_info(info, "%s",
182 printed_options ? "|RTI" : " RTI");
185 if ((tinfo->ppr_options & MSG_EXT_PPR_QAS_REQ) != 0) {
186 copy_info(info, "%s",
187 printed_options ? "|QAS" : " QAS");
192 if (tinfo->width > 0) {
194 copy_info(info, ", ");
196 copy_info(info, " (");
198 copy_info(info, "%dbit)", 8 * (0x01 << tinfo->width));
199 } else if (freq != 0) {
200 copy_info(info, ")");
202 copy_info(info, "\n");
206 ahd_dump_target_state(struct ahd_softc *ahd, struct info_str *info,
207 u_int our_id, char channel, u_int target_id,
210 struct ahd_linux_target *targ;
211 struct scsi_target *starget;
212 struct ahd_initiator_tinfo *tinfo;
213 struct ahd_tmode_tstate *tstate;
216 tinfo = ahd_fetch_transinfo(ahd, channel, our_id,
218 copy_info(info, "Target %d Negotiation Settings\n", target_id);
219 copy_info(info, "\tUser: ");
220 ahd_format_transinfo(info, &tinfo->user);
221 starget = ahd->platform_data->starget[target_offset];
224 targ = scsi_transport_target_data(starget);
226 copy_info(info, "\tGoal: ");
227 ahd_format_transinfo(info, &tinfo->goal);
228 copy_info(info, "\tCurr: ");
229 ahd_format_transinfo(info, &tinfo->curr);
231 for (lun = 0; lun < AHD_NUM_LUNS; lun++) {
232 struct scsi_device *dev;
234 dev = targ->sdev[lun];
239 ahd_dump_device_state(info, dev);
244 ahd_dump_device_state(struct info_str *info, struct scsi_device *sdev)
246 struct ahd_linux_device *dev = scsi_transport_device_data(sdev);
248 copy_info(info, "\tChannel %c Target %d Lun %d Settings\n",
249 sdev->sdev_target->channel + 'A',
250 sdev->sdev_target->id, sdev->lun);
252 copy_info(info, "\t\tCommands Queued %ld\n", dev->commands_issued);
253 copy_info(info, "\t\tCommands Active %d\n", dev->active);
254 copy_info(info, "\t\tCommand Openings %d\n", dev->openings);
255 copy_info(info, "\t\tMax Tagged Openings %d\n", dev->maxtags);
256 copy_info(info, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen);
260 ahd_proc_write_seeprom(struct ahd_softc *ahd, char *buffer, int length)
262 ahd_mode_state saved_modes;
268 /* Default to failure. */
271 paused = ahd_is_paused(ahd);
275 saved_modes = ahd_save_modes(ahd);
276 ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
277 if (length != sizeof(struct seeprom_config)) {
278 printf("ahd_proc_write_seeprom: incorrect buffer size\n");
282 have_seeprom = ahd_verify_cksum((struct seeprom_config*)buffer);
283 if (have_seeprom == 0) {
284 printf("ahd_proc_write_seeprom: cksum verification failed\n");
288 have_seeprom = ahd_acquire_seeprom(ahd);
290 printf("ahd_proc_write_seeprom: No Serial EEPROM\n");
295 if (ahd->seep_config == NULL) {
296 ahd->seep_config = malloc(sizeof(*ahd->seep_config),
298 if (ahd->seep_config == NULL) {
299 printf("aic79xx: Unable to allocate serial "
300 "eeprom buffer. Write failing\n");
304 printf("aic79xx: Writing Serial EEPROM\n");
305 start_addr = 32 * (ahd->channel - 'A');
306 ahd_write_seeprom(ahd, (u_int16_t *)buffer, start_addr,
307 sizeof(struct seeprom_config)/2);
308 ahd_read_seeprom(ahd, (uint16_t *)ahd->seep_config,
309 start_addr, sizeof(struct seeprom_config)/2,
310 /*ByteStream*/FALSE);
311 ahd_release_seeprom(ahd);
316 ahd_restore_modes(ahd, saved_modes);
323 * Return information to handle /proc support for the driver.
326 ahd_linux_proc_info(struct Scsi_Host *shost, char *buffer, char **start,
327 off_t offset, int length, int inout)
329 struct ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata;
330 struct info_str info;
336 /* Has data been written to the file? */
338 retval = ahd_proc_write_seeprom(ahd, buffer, length);
345 info.buffer = buffer;
346 info.length = length;
347 info.offset = offset;
350 copy_info(&info, "Adaptec AIC79xx driver version: %s\n",
351 AIC79XX_DRIVER_VERSION);
352 copy_info(&info, "%s\n", ahd->description);
353 ahd_controller_info(ahd, ahd_info);
354 copy_info(&info, "%s\n", ahd_info);
355 copy_info(&info, "Allocated SCBs: %d, SG List Length: %d\n\n",
356 ahd->scb_data.numscbs, AHD_NSEG);
360 if (ahd->seep_config == NULL)
361 copy_info(&info, "No Serial EEPROM\n");
363 copy_info(&info, "Serial EEPROM:\n");
364 for (i = 0; i < sizeof(*ahd->seep_config)/2; i++) {
365 if (((i % 8) == 0) && (i != 0)) {
366 copy_info(&info, "\n");
368 copy_info(&info, "0x%.4x ",
369 ((uint16_t*)ahd->seep_config)[i]);
371 copy_info(&info, "\n");
373 copy_info(&info, "\n");
375 if ((ahd->features & AHD_WIDE) == 0)
378 for (i = 0; i <= max_targ; i++) {
380 ahd_dump_target_state(ahd, &info, ahd->our_id, 'A',
381 /*target_id*/i, /*target_offset*/i);
383 retval = info.pos > info.offset ? info.pos - info.offset : 0;