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/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
),
260 if (ahc
->seep_config
== NULL
) {
261 printk("aic7xxx: Unable to allocate serial "
262 "eeprom buffer. Write failing\n");
266 printk("aic7xxx: Writing Serial EEPROM\n");
267 start_addr
= 32 * (ahc
->channel
- 'A');
268 ahc_write_seeprom(&sd
, (u_int16_t
*)buffer
, start_addr
,
269 sizeof(struct seeprom_config
)/2);
270 ahc_read_seeprom(&sd
, (uint16_t *)ahc
->seep_config
,
271 start_addr
, sizeof(struct seeprom_config
)/2);
272 #if AHC_PCI_CONFIG > 0
273 if ((ahc
->chip
& AHC_VL
) == 0)
274 ahc_release_seeprom(&sd
);
287 * Return information to handle /proc support for the driver.
290 ahc_linux_show_info(struct seq_file
*m
, struct Scsi_Host
*shost
)
292 struct ahc_softc
*ahc
= *(struct ahc_softc
**)shost
->hostdata
;
297 seq_printf(m
, "Adaptec AIC7xxx driver version: %s\n",
298 AIC7XXX_DRIVER_VERSION
);
299 seq_printf(m
, "%s\n", ahc
->description
);
300 ahc_controller_info(ahc
, ahc_info
);
301 seq_printf(m
, "%s\n", ahc_info
);
302 seq_printf(m
, "Allocated SCBs: %d, SG List Length: %d\n\n",
303 ahc
->scb_data
->numscbs
, AHC_NSEG
);
306 if (ahc
->seep_config
== NULL
)
307 seq_puts(m
, "No Serial EEPROM\n");
309 seq_puts(m
, "Serial EEPROM:\n");
310 for (i
= 0; i
< sizeof(*ahc
->seep_config
)/2; i
++) {
311 if (((i
% 8) == 0) && (i
!= 0)) {
314 seq_printf(m
, "0x%.4x ",
315 ((uint16_t*)ahc
->seep_config
)[i
]);
322 if ((ahc
->features
& (AHC_WIDE
|AHC_TWIN
)) == 0)
325 for (i
= 0; i
< max_targ
; i
++) {
331 our_id
= ahc
->our_id
;
333 if (i
> 7 && (ahc
->features
& AHC_TWIN
) != 0) {
335 our_id
= ahc
->our_id_b
;
339 ahc_dump_target_state(ahc
, m
, our_id
,
340 channel
, target_id
, i
);