1 /*
2 * Copyright (c) 2000-2001 Adaptec Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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.
19 *
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.
23 *
24 * NO WARRANTY
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.
36 *
37 * String handling code courtesy of Gerard Roudier's <groudier@club-internet.fr>
38 * sym driver.
39 *
40 * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic79xx_proc.c#19 $
41 */
42 #include "aic79xx_osm.h"
43 #include "aic79xx_inline.h"
44
45 static void ahd_dump_target_state(struct ahd_softc *ahd,
46 struct seq_file *m,
47 u_int our_id, char channel,
48 u_int target_id);
49 static void ahd_dump_device_state(struct seq_file *m,
50 struct scsi_device *sdev);
51
52 /*
53 * Table of syncrates that don't follow the "divisible by 4"
54 * rule. This table will be expanded in future SCSI specs.
55 */
56 static const struct {
57 u_int period_factor;
58 u_int period; /* in 100ths of ns */
59 } scsi_syncrates[] = {
60 { 0x08, 625 }, /* FAST-160 */
61 { 0x09, 1250 }, /* FAST-80 */
62 { 0x0a, 2500 }, /* FAST-40 40MHz */
63 { 0x0b, 3030 }, /* FAST-40 33MHz */
64 { 0x0c, 5000 } /* FAST-20 */
65 };
66
67 /*
68 * Return the frequency in kHz corresponding to the given
69 * sync period factor.
70 */
71 static u_int
ahd_calc_syncsrate(u_int period_factor)72 ahd_calc_syncsrate(u_int period_factor)
73 {
74 int i;
75
76 /* See if the period is in the "exception" table */
77 for (i = 0; i < ARRAY_SIZE(scsi_syncrates); i++) {
78
79 if (period_factor == scsi_syncrates[i].period_factor) {
80 /* Period in kHz */
81 return (100000000 / scsi_syncrates[i].period);
82 }
83 }
84
85 /*
86 * Wasn't in the table, so use the standard
87 * 4 times conversion.
88 */
89 return (10000000 / (period_factor * 4 * 10));
90 }
91
92 static void
ahd_format_transinfo(struct seq_file * m,struct ahd_transinfo * tinfo)93 ahd_format_transinfo(struct seq_file *m, struct ahd_transinfo *tinfo)
94 {
95 u_int speed;
96 u_int freq;
97 u_int mb;
98
99 if (tinfo->period == AHD_PERIOD_UNKNOWN) {
100 seq_puts(m, "Renegotiation Pending\n");
101 return;
102 }
103 speed = 3300;
104 freq = 0;
105 if (tinfo->offset != 0) {
106 freq = ahd_calc_syncsrate(tinfo->period);
107 speed = freq;
108 }
109 speed *= (0x01 << tinfo->width);
110 mb = speed / 1000;
111 if (mb > 0)
112 seq_printf(m, "%d.%03dMB/s transfers", mb, speed % 1000);
113 else
114 seq_printf(m, "%dKB/s transfers", speed);
115
116 if (freq != 0) {
117 int printed_options;
118
119 printed_options = 0;
120 seq_printf(m, " (%d.%03dMHz", freq / 1000, freq % 1000);
121 if ((tinfo->ppr_options & MSG_EXT_PPR_RD_STRM) != 0) {
122 seq_puts(m, " RDSTRM");
123 printed_options++;
124 }
125 if ((tinfo->ppr_options & MSG_EXT_PPR_DT_REQ) != 0) {
126 seq_puts(m, printed_options ? "|DT" : " DT");
127 printed_options++;
128 }
129 if ((tinfo->ppr_options & MSG_EXT_PPR_IU_REQ) != 0) {
130 seq_puts(m, printed_options ? "|IU" : " IU");
131 printed_options++;
132 }
133 if ((tinfo->ppr_options & MSG_EXT_PPR_RTI) != 0) {
134 seq_puts(m, printed_options ? "|RTI" : " RTI");
135 printed_options++;
136 }
137 if ((tinfo->ppr_options & MSG_EXT_PPR_QAS_REQ) != 0) {
138 seq_puts(m, printed_options ? "|QAS" : " QAS");
139 printed_options++;
140 }
141 }
142
143 if (tinfo->width > 0) {
144 if (freq != 0) {
145 seq_puts(m, ", ");
146 } else {
147 seq_puts(m, " (");
148 }
149 seq_printf(m, "%dbit)", 8 * (0x01 << tinfo->width));
150 } else if (freq != 0) {
151 seq_putc(m, ')');
152 }
153 seq_putc(m, '\n');
154 }
155
156 static void
ahd_dump_target_state(struct ahd_softc * ahd,struct seq_file * m,u_int our_id,char channel,u_int target_id)157 ahd_dump_target_state(struct ahd_softc *ahd, struct seq_file *m,
158 u_int our_id, char channel, u_int target_id)
159 {
160 struct scsi_target *starget;
161 struct ahd_initiator_tinfo *tinfo;
162 struct ahd_tmode_tstate *tstate;
163 int lun;
164
165 tinfo = ahd_fetch_transinfo(ahd, channel, our_id,
166 target_id, &tstate);
167 seq_printf(m, "Target %d Negotiation Settings\n", target_id);
168 seq_puts(m, "\tUser: ");
169 ahd_format_transinfo(m, &tinfo->user);
170 starget = ahd->platform_data->starget[target_id];
171 if (starget == NULL)
172 return;
173
174 seq_puts(m, "\tGoal: ");
175 ahd_format_transinfo(m, &tinfo->goal);
176 seq_puts(m, "\tCurr: ");
177 ahd_format_transinfo(m, &tinfo->curr);
178
179 for (lun = 0; lun < AHD_NUM_LUNS; lun++) {
180 struct scsi_device *dev;
181
182 dev = scsi_device_lookup_by_target(starget, lun);
183
184 if (dev == NULL)
185 continue;
186
187 ahd_dump_device_state(m, dev);
188 }
189 }
190
191 static void
ahd_dump_device_state(struct seq_file * m,struct scsi_device * sdev)192 ahd_dump_device_state(struct seq_file *m, struct scsi_device *sdev)
193 {
194 struct ahd_linux_device *dev = scsi_transport_device_data(sdev);
195
196 seq_printf(m, "\tChannel %c Target %d Lun %d Settings\n",
197 sdev->sdev_target->channel + 'A',
198 sdev->sdev_target->id, (u8)sdev->lun);
199
200 seq_printf(m, "\t\tCommands Queued %ld\n", dev->commands_issued);
201 seq_printf(m, "\t\tCommands Active %d\n", dev->active);
202 seq_printf(m, "\t\tCommand Openings %d\n", dev->openings);
203 seq_printf(m, "\t\tMax Tagged Openings %d\n", dev->maxtags);
204 seq_printf(m, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen);
205 }
206
207 int
ahd_proc_write_seeprom(struct Scsi_Host * shost,char * buffer,int length)208 ahd_proc_write_seeprom(struct Scsi_Host *shost, char *buffer, int length)
209 {
210 struct ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata;
211 ahd_mode_state saved_modes;
212 int have_seeprom;
213 u_long s;
214 int paused;
215 int written;
216
217 /* Default to failure. */
218 written = -EINVAL;
219 ahd_lock(ahd, &s);
220 paused = ahd_is_paused(ahd);
221 if (!paused)
222 ahd_pause(ahd);
223
224 saved_modes = ahd_save_modes(ahd);
225 ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
226 if (length != sizeof(struct seeprom_config)) {
227 printk("ahd_proc_write_seeprom: incorrect buffer size\n");
228 goto done;
229 }
230
231 have_seeprom = ahd_verify_cksum((struct seeprom_config*)buffer);
232 if (have_seeprom == 0) {
233 printk("ahd_proc_write_seeprom: cksum verification failed\n");
234 goto done;
235 }
236
237 have_seeprom = ahd_acquire_seeprom(ahd);
238 if (!have_seeprom) {
239 printk("ahd_proc_write_seeprom: No Serial EEPROM\n");
240 goto done;
241 } else {
242 u_int start_addr;
243
244 if (ahd->seep_config == NULL) {
245 ahd->seep_config = kmalloc(sizeof(*ahd->seep_config), GFP_ATOMIC);
246 if (ahd->seep_config == NULL) {
247 printk("aic79xx: Unable to allocate serial "
248 "eeprom buffer. Write failing\n");
249 goto done;
250 }
251 }
252 printk("aic79xx: Writing Serial EEPROM\n");
253 start_addr = 32 * (ahd->channel - 'A');
254 ahd_write_seeprom(ahd, (u_int16_t *)buffer, start_addr,
255 sizeof(struct seeprom_config)/2);
256 ahd_read_seeprom(ahd, (uint16_t *)ahd->seep_config,
257 start_addr, sizeof(struct seeprom_config)/2,
258 /*ByteStream*/FALSE);
259 ahd_release_seeprom(ahd);
260 written = length;
261 }
262
263 done:
264 ahd_restore_modes(ahd, saved_modes);
265 if (!paused)
266 ahd_unpause(ahd);
267 ahd_unlock(ahd, &s);
268 return (written);
269 }
270 /*
271 * Return information to handle /proc support for the driver.
272 */
273 int
ahd_linux_show_info(struct seq_file * m,struct Scsi_Host * shost)274 ahd_linux_show_info(struct seq_file *m, struct Scsi_Host *shost)
275 {
276 struct ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata;
277 char ahd_info[256];
278 u_int max_targ;
279 u_int i;
280
281 seq_printf(m, "Adaptec AIC79xx driver version: %s\n",
282 AIC79XX_DRIVER_VERSION);
283 seq_printf(m, "%s\n", ahd->description);
284 ahd_controller_info(ahd, ahd_info);
285 seq_printf(m, "%s\n", ahd_info);
286 seq_printf(m, "Allocated SCBs: %d, SG List Length: %d\n\n",
287 ahd->scb_data.numscbs, AHD_NSEG);
288
289 max_targ = 16;
290
291 if (ahd->seep_config == NULL)
292 seq_puts(m, "No Serial EEPROM\n");
293 else {
294 seq_puts(m, "Serial EEPROM:\n");
295 for (i = 0; i < sizeof(*ahd->seep_config)/2; i++) {
296 if (((i % 8) == 0) && (i != 0)) {
297 seq_putc(m, '\n');
298 }
299 seq_printf(m, "0x%.4x ",
300 ((uint16_t*)ahd->seep_config)[i]);
301 }
302 seq_putc(m, '\n');
303 }
304 seq_putc(m, '\n');
305
306 if ((ahd->features & AHD_WIDE) == 0)
307 max_targ = 8;
308
309 for (i = 0; i < max_targ; i++) {
310
311 ahd_dump_target_state(ahd, m, ahd->our_id, 'A',
312 /*target_id*/i);
313 }
314 return 0;
315 }
316
