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1/*2 * Copyright (c) 2000-2001 Adaptec Inc.3 * All rights reserved.4 *5 * Redistribution and use in source and binary forms, with or without6 * modification, are permitted provided that the following conditions7 * are met:8 * 1. Redistributions of source code must retain the above copyright9 * notice, this list of conditions, and the following disclaimer,10 * without modification.11 * 2. Redistributions in binary form must reproduce at minimum a disclaimer12 * substantially similar to the "NO WARRANTY" disclaimer below13 * ("Disclaimer") and any redistribution must be conditioned upon14 * including a substantially similar Disclaimer requirement for further15 * binary redistribution.16 * 3. Neither the names of the above-listed copyright holders nor the names17 * of any contributors may be used to endorse or promote products derived18 * from this software without specific prior written permission.19 *20 * Alternatively, this software may be distributed under the terms of the21 * GNU General Public License ("GPL") version 2 as published by the Free22 * Software Foundation.23 *24 * NO WARRANTY25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT27 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR28 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT29 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS31 * 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) ARISING34 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE35 * 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 45static 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);49static 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 */56static 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 given69 * sync period factor.70 */71static u_int72ahd_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 standard87 * 4 times conversion.88 */89 return (10000000 / (period_factor * 4 * 10));90}91 92static void93ahd_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 else114 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 156static void157ahd_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 191static void192ahd_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 207int208ahd_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),246 GFP_ATOMIC);247 if (ahd->seep_config == NULL) {248 printk("aic79xx: Unable to allocate serial "249 "eeprom buffer. Write failing\n");250 goto done;251 }252 }253 printk("aic79xx: Writing Serial EEPROM\n");254 start_addr = 32 * (ahd->channel - 'A');255 ahd_write_seeprom(ahd, (u_int16_t *)buffer, start_addr,256 sizeof(struct seeprom_config)/2);257 ahd_read_seeprom(ahd, (uint16_t *)ahd->seep_config,258 start_addr, sizeof(struct seeprom_config)/2,259 /*ByteStream*/FALSE);260 ahd_release_seeprom(ahd);261 written = length;262 }263 264done:265 ahd_restore_modes(ahd, saved_modes);266 if (!paused)267 ahd_unpause(ahd);268 ahd_unlock(ahd, &s);269 return (written);270}271/*272 * Return information to handle /proc support for the driver.273 */274int275ahd_linux_show_info(struct seq_file *m, struct Scsi_Host *shost)276{277 struct ahd_softc *ahd = *(struct ahd_softc **)shost->hostdata;278 char ahd_info[256];279 u_int max_targ;280 u_int i;281 282 seq_printf(m, "Adaptec AIC79xx driver version: %s\n",283 AIC79XX_DRIVER_VERSION);284 seq_printf(m, "%s\n", ahd->description);285 ahd_controller_info(ahd, ahd_info);286 seq_printf(m, "%s\n", ahd_info);287 seq_printf(m, "Allocated SCBs: %d, SG List Length: %d\n\n",288 ahd->scb_data.numscbs, AHD_NSEG);289 290 max_targ = 16;291 292 if (ahd->seep_config == NULL)293 seq_puts(m, "No Serial EEPROM\n");294 else {295 seq_puts(m, "Serial EEPROM:\n");296 for (i = 0; i < sizeof(*ahd->seep_config)/2; i++) {297 if (((i % 8) == 0) && (i != 0)) {298 seq_putc(m, '\n');299 }300 seq_printf(m, "0x%.4x ",301 ((uint16_t*)ahd->seep_config)[i]);302 }303 seq_putc(m, '\n');304 }305 seq_putc(m, '\n');306 307 if ((ahd->features & AHD_WIDE) == 0)308 max_targ = 8;309 310 for (i = 0; i < max_targ; i++) {311 312 ahd_dump_target_state(ahd, m, ahd->our_id, 'A',313 /*target_id*/i);314 }315 return 0;316}317