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
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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)
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33 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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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/aic7xxx_proc.c#29 $
42 #include "aic7xxx_osm.h"
43 #include "aic7xxx_inline.h"
44 #include "aic7xxx_93cx6.h"
46 static void ahc_dump_target_state(struct ahc_softc *ahc,
48 u_int our_id, char channel,
49 u_int target_id, u_int target_offset);
50 static void ahc_dump_device_state(struct seq_file *m,
51 struct scsi_device *dev);
54 * Table of syncrates that don't follow the "divisible by 4"
55 * rule. This table will be expanded in future SCSI specs.
59 u_int period; /* in 100ths of ns */
60 } scsi_syncrates[] = {
61 { 0x08, 625 }, /* FAST-160 */
62 { 0x09, 1250 }, /* FAST-80 */
63 { 0x0a, 2500 }, /* FAST-40 40MHz */
64 { 0x0b, 3030 }, /* FAST-40 33MHz */
65 { 0x0c, 5000 } /* FAST-20 */
69 * Return the frequency in kHz corresponding to the given
73 ahc_calc_syncsrate(u_int period_factor)
77 /* See if the period is in the "exception" table */
78 for (i = 0; i < ARRAY_SIZE(scsi_syncrates); i++) {
80 if (period_factor == scsi_syncrates[i].period_factor) {
82 return (100000000 / scsi_syncrates[i].period);
87 * Wasn't in the table, so use the standard
90 return (10000000 / (period_factor * 4 * 10));
94 ahc_format_transinfo(struct seq_file *m, struct ahc_transinfo *tinfo)
102 if (tinfo->offset != 0) {
103 freq = ahc_calc_syncsrate(tinfo->period);
106 speed *= (0x01 << tinfo->width);
109 seq_printf(m, "%d.%03dMB/s transfers", mb, speed % 1000);
111 seq_printf(m, "%dKB/s transfers", speed);
114 seq_printf(m, " (%d.%03dMHz%s, offset %d",
115 freq / 1000, freq % 1000,
116 (tinfo->ppr_options & MSG_EXT_PPR_DT_REQ) != 0
117 ? " DT" : "", tinfo->offset);
120 if (tinfo->width > 0) {
126 seq_printf(m, "%dbit)", 8 * (0x01 << tinfo->width));
127 } else if (freq != 0) {
134 ahc_dump_target_state(struct ahc_softc *ahc, struct seq_file *m,
135 u_int our_id, char channel, u_int target_id,
138 struct scsi_target *starget;
139 struct ahc_initiator_tinfo *tinfo;
140 struct ahc_tmode_tstate *tstate;
143 tinfo = ahc_fetch_transinfo(ahc, channel, our_id,
145 if ((ahc->features & AHC_TWIN) != 0)
146 seq_printf(m, "Channel %c ", channel);
147 seq_printf(m, "Target %d Negotiation Settings\n", target_id);
148 seq_puts(m, "\tUser: ");
149 ahc_format_transinfo(m, &tinfo->user);
150 starget = ahc->platform_data->starget[target_offset];
154 seq_puts(m, "\tGoal: ");
155 ahc_format_transinfo(m, &tinfo->goal);
156 seq_puts(m, "\tCurr: ");
157 ahc_format_transinfo(m, &tinfo->curr);
159 for (lun = 0; lun < AHC_NUM_LUNS; lun++) {
160 struct scsi_device *sdev;
162 sdev = scsi_device_lookup_by_target(starget, lun);
167 ahc_dump_device_state(m, sdev);
172 ahc_dump_device_state(struct seq_file *m, struct scsi_device *sdev)
174 struct ahc_linux_device *dev = scsi_transport_device_data(sdev);
176 seq_printf(m, "\tChannel %c Target %d Lun %d Settings\n",
177 sdev->sdev_target->channel + 'A',
178 sdev->sdev_target->id, (u8)sdev->lun);
180 seq_printf(m, "\t\tCommands Queued %ld\n", dev->commands_issued);
181 seq_printf(m, "\t\tCommands Active %d\n", dev->active);
182 seq_printf(m, "\t\tCommand Openings %d\n", dev->openings);
183 seq_printf(m, "\t\tMax Tagged Openings %d\n", dev->maxtags);
184 seq_printf(m, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen);
188 ahc_proc_write_seeprom(struct Scsi_Host *shost, char *buffer, int length)
190 struct ahc_softc *ahc = *(struct ahc_softc **)shost->hostdata;
191 struct seeprom_descriptor sd;
197 /* Default to failure. */
200 paused = ahc_is_paused(ahc);
204 if (length != sizeof(struct seeprom_config)) {
205 printk("ahc_proc_write_seeprom: incorrect buffer size\n");
209 have_seeprom = ahc_verify_cksum((struct seeprom_config*)buffer);
210 if (have_seeprom == 0) {
211 printk("ahc_proc_write_seeprom: cksum verification failed\n");
216 #if AHC_PCI_CONFIG > 0
217 if ((ahc->chip & AHC_PCI) != 0) {
218 sd.sd_control_offset = SEECTL;
219 sd.sd_status_offset = SEECTL;
220 sd.sd_dataout_offset = SEECTL;
221 if (ahc->flags & AHC_LARGE_SEEPROM)
231 have_seeprom = ahc_acquire_seeprom(ahc, &sd);
234 if ((ahc->chip & AHC_VL) != 0) {
235 sd.sd_control_offset = SEECTL_2840;
236 sd.sd_status_offset = STATUS_2840;
237 sd.sd_dataout_offset = STATUS_2840;
240 sd.sd_RDY = EEPROM_TF;
247 printk("ahc_proc_write_seeprom: unsupported adapter type\n");
252 printk("ahc_proc_write_seeprom: No Serial EEPROM\n");
257 if (ahc->seep_config == NULL) {
258 ahc->seep_config = kmalloc(sizeof(*ahc->seep_config), GFP_ATOMIC);
259 if (ahc->seep_config == NULL) {
260 printk("aic7xxx: Unable to allocate serial "
261 "eeprom buffer. Write failing\n");
265 printk("aic7xxx: Writing Serial EEPROM\n");
266 start_addr = 32 * (ahc->channel - 'A');
267 ahc_write_seeprom(&sd, (u_int16_t *)buffer, start_addr,
268 sizeof(struct seeprom_config)/2);
269 ahc_read_seeprom(&sd, (uint16_t *)ahc->seep_config,
270 start_addr, sizeof(struct seeprom_config)/2);
271 #if AHC_PCI_CONFIG > 0
272 if ((ahc->chip & AHC_VL) == 0)
273 ahc_release_seeprom(&sd);
286 * Return information to handle /proc support for the driver.
289 ahc_linux_show_info(struct seq_file *m, struct Scsi_Host *shost)
291 struct ahc_softc *ahc = *(struct ahc_softc **)shost->hostdata;
296 seq_printf(m, "Adaptec AIC7xxx driver version: %s\n",
297 AIC7XXX_DRIVER_VERSION);
298 seq_printf(m, "%s\n", ahc->description);
299 ahc_controller_info(ahc, ahc_info);
300 seq_printf(m, "%s\n", ahc_info);
301 seq_printf(m, "Allocated SCBs: %d, SG List Length: %d\n\n",
302 ahc->scb_data->numscbs, AHC_NSEG);
305 if (ahc->seep_config == NULL)
306 seq_puts(m, "No Serial EEPROM\n");
308 seq_puts(m, "Serial EEPROM:\n");
309 for (i = 0; i < sizeof(*ahc->seep_config)/2; i++) {
310 if (((i % 8) == 0) && (i != 0)) {
313 seq_printf(m, "0x%.4x ",
314 ((uint16_t*)ahc->seep_config)[i]);
321 if ((ahc->features & (AHC_WIDE|AHC_TWIN)) == 0)
324 for (i = 0; i < max_targ; i++) {
330 our_id = ahc->our_id;
332 if (i > 7 && (ahc->features & AHC_TWIN) != 0) {
334 our_id = ahc->our_id_b;
338 ahc_dump_target_state(ahc, m, our_id,
339 channel, target_id, i);