2 * Copyright (c) 2000-2001 Adaptec Inc.
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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
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31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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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 ahd_dump_target_state(struct ahd_softc *ahd,
47 u_int our_id, char channel,
49 static void ahd_dump_device_state(struct seq_file *m,
50 struct scsi_device *sdev);
53 * Table of syncrates that don't follow the "divisible by 4"
54 * rule. This table will be expanded in future SCSI specs.
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 */
68 * Return the frequency in kHz corresponding to the given
72 ahd_calc_syncsrate(u_int period_factor)
76 /* See if the period is in the "exception" table */
77 for (i = 0; i < ARRAY_SIZE(scsi_syncrates); i++) {
79 if (period_factor == scsi_syncrates[i].period_factor) {
81 return (100000000 / scsi_syncrates[i].period);
86 * Wasn't in the table, so use the standard
89 return (10000000 / (period_factor * 4 * 10));
93 ahd_format_transinfo(struct seq_file *m, struct ahd_transinfo *tinfo)
99 if (tinfo->period == AHD_PERIOD_UNKNOWN) {
100 seq_printf(m, "Renegotiation Pending\n");
105 if (tinfo->offset != 0) {
106 freq = ahd_calc_syncsrate(tinfo->period);
109 speed *= (0x01 << tinfo->width);
112 seq_printf(m, "%d.%03dMB/s transfers", mb, speed % 1000);
114 seq_printf(m, "%dKB/s transfers", speed);
120 seq_printf(m, " (%d.%03dMHz", freq / 1000, freq % 1000);
121 if ((tinfo->ppr_options & MSG_EXT_PPR_RD_STRM) != 0) {
122 seq_printf(m, " RDSTRM");
125 if ((tinfo->ppr_options & MSG_EXT_PPR_DT_REQ) != 0) {
126 seq_printf(m, "%s", printed_options ? "|DT" : " DT");
129 if ((tinfo->ppr_options & MSG_EXT_PPR_IU_REQ) != 0) {
130 seq_printf(m, "%s", printed_options ? "|IU" : " IU");
133 if ((tinfo->ppr_options & MSG_EXT_PPR_RTI) != 0) {
135 printed_options ? "|RTI" : " RTI");
138 if ((tinfo->ppr_options & MSG_EXT_PPR_QAS_REQ) != 0) {
140 printed_options ? "|QAS" : " QAS");
145 if (tinfo->width > 0) {
151 seq_printf(m, "%dbit)", 8 * (0x01 << tinfo->width));
152 } else if (freq != 0) {
159 ahd_dump_target_state(struct ahd_softc *ahd, struct seq_file *m,
160 u_int our_id, char channel, u_int target_id)
162 struct scsi_target *starget;
163 struct ahd_initiator_tinfo *tinfo;
164 struct ahd_tmode_tstate *tstate;
167 tinfo = ahd_fetch_transinfo(ahd, channel, our_id,
169 seq_printf(m, "Target %d Negotiation Settings\n", target_id);
170 seq_printf(m, "\tUser: ");
171 ahd_format_transinfo(m, &tinfo->user);
172 starget = ahd->platform_data->starget[target_id];
176 seq_printf(m, "\tGoal: ");
177 ahd_format_transinfo(m, &tinfo->goal);
178 seq_printf(m, "\tCurr: ");
179 ahd_format_transinfo(m, &tinfo->curr);
181 for (lun = 0; lun < AHD_NUM_LUNS; lun++) {
182 struct scsi_device *dev;
184 dev = scsi_device_lookup_by_target(starget, lun);
189 ahd_dump_device_state(m, dev);
194 ahd_dump_device_state(struct seq_file *m, struct scsi_device *sdev)
196 struct ahd_linux_device *dev = scsi_transport_device_data(sdev);
198 seq_printf(m, "\tChannel %c Target %d Lun %d Settings\n",
199 sdev->sdev_target->channel + 'A',
200 sdev->sdev_target->id, sdev->lun);
202 seq_printf(m, "\t\tCommands Queued %ld\n", dev->commands_issued);
203 seq_printf(m, "\t\tCommands Active %d\n", dev->active);
204 seq_printf(m, "\t\tCommand Openings %d\n", dev->openings);
205 seq_printf(m, "\t\tMax Tagged Openings %d\n", dev->maxtags);
206 seq_printf(m, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen);
210 ahd_proc_write_seeprom(struct Scsi_Host *shost, char *buffer, int length)
212 struct ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata;
213 ahd_mode_state saved_modes;
219 /* Default to failure. */
222 paused = ahd_is_paused(ahd);
226 saved_modes = ahd_save_modes(ahd);
227 ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
228 if (length != sizeof(struct seeprom_config)) {
229 printk("ahd_proc_write_seeprom: incorrect buffer size\n");
233 have_seeprom = ahd_verify_cksum((struct seeprom_config*)buffer);
234 if (have_seeprom == 0) {
235 printk("ahd_proc_write_seeprom: cksum verification failed\n");
239 have_seeprom = ahd_acquire_seeprom(ahd);
241 printk("ahd_proc_write_seeprom: No Serial EEPROM\n");
246 if (ahd->seep_config == NULL) {
247 ahd->seep_config = kmalloc(sizeof(*ahd->seep_config), GFP_ATOMIC);
248 if (ahd->seep_config == NULL) {
249 printk("aic79xx: Unable to allocate serial "
250 "eeprom buffer. Write failing\n");
254 printk("aic79xx: Writing Serial EEPROM\n");
255 start_addr = 32 * (ahd->channel - 'A');
256 ahd_write_seeprom(ahd, (u_int16_t *)buffer, start_addr,
257 sizeof(struct seeprom_config)/2);
258 ahd_read_seeprom(ahd, (uint16_t *)ahd->seep_config,
259 start_addr, sizeof(struct seeprom_config)/2,
260 /*ByteStream*/FALSE);
261 ahd_release_seeprom(ahd);
266 ahd_restore_modes(ahd, saved_modes);
273 * Return information to handle /proc support for the driver.
276 ahd_linux_show_info(struct seq_file *m, struct Scsi_Host *shost)
278 struct ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata;
283 seq_printf(m, "Adaptec AIC79xx driver version: %s\n",
284 AIC79XX_DRIVER_VERSION);
285 seq_printf(m, "%s\n", ahd->description);
286 ahd_controller_info(ahd, ahd_info);
287 seq_printf(m, "%s\n", ahd_info);
288 seq_printf(m, "Allocated SCBs: %d, SG List Length: %d\n\n",
289 ahd->scb_data.numscbs, AHD_NSEG);
293 if (ahd->seep_config == NULL)
294 seq_printf(m, "No Serial EEPROM\n");
296 seq_printf(m, "Serial EEPROM:\n");
297 for (i = 0; i < sizeof(*ahd->seep_config)/2; i++) {
298 if (((i % 8) == 0) && (i != 0)) {
301 seq_printf(m, "0x%.4x ",
302 ((uint16_t*)ahd->seep_config)[i]);
308 if ((ahd->features & AHD_WIDE) == 0)
311 for (i = 0; i < max_targ; i++) {
313 ahd_dump_target_state(ahd, m, ahd->our_id, 'A',