mirror of https://gitee.com/openkylin/linux.git
343 lines
9.3 KiB
C
343 lines
9.3 KiB
C
/*
|
|
* Copyright (c) 2000-2001 Adaptec Inc.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions, and the following disclaimer,
|
|
* without modification.
|
|
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
|
|
* substantially similar to the "NO WARRANTY" disclaimer below
|
|
* ("Disclaimer") and any redistribution must be conditioned upon
|
|
* including a substantially similar Disclaimer requirement for further
|
|
* binary redistribution.
|
|
* 3. Neither the names of the above-listed copyright holders nor the names
|
|
* of any contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* Alternatively, this software may be distributed under the terms of the
|
|
* GNU General Public License ("GPL") version 2 as published by the Free
|
|
* Software Foundation.
|
|
*
|
|
* NO WARRANTY
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
|
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGES.
|
|
*
|
|
* String handling code courtesy of Gerard Roudier's <groudier@club-internet.fr>
|
|
* sym driver.
|
|
*
|
|
* $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic7xxx_proc.c#29 $
|
|
*/
|
|
#include "aic7xxx_osm.h"
|
|
#include "aic7xxx_inline.h"
|
|
#include "aic7xxx_93cx6.h"
|
|
|
|
static void ahc_dump_target_state(struct ahc_softc *ahc,
|
|
struct seq_file *m,
|
|
u_int our_id, char channel,
|
|
u_int target_id, u_int target_offset);
|
|
static void ahc_dump_device_state(struct seq_file *m,
|
|
struct scsi_device *dev);
|
|
|
|
/*
|
|
* Table of syncrates that don't follow the "divisible by 4"
|
|
* rule. This table will be expanded in future SCSI specs.
|
|
*/
|
|
static const struct {
|
|
u_int period_factor;
|
|
u_int period; /* in 100ths of ns */
|
|
} scsi_syncrates[] = {
|
|
{ 0x08, 625 }, /* FAST-160 */
|
|
{ 0x09, 1250 }, /* FAST-80 */
|
|
{ 0x0a, 2500 }, /* FAST-40 40MHz */
|
|
{ 0x0b, 3030 }, /* FAST-40 33MHz */
|
|
{ 0x0c, 5000 } /* FAST-20 */
|
|
};
|
|
|
|
/*
|
|
* Return the frequency in kHz corresponding to the given
|
|
* sync period factor.
|
|
*/
|
|
static u_int
|
|
ahc_calc_syncsrate(u_int period_factor)
|
|
{
|
|
int i;
|
|
|
|
/* See if the period is in the "exception" table */
|
|
for (i = 0; i < ARRAY_SIZE(scsi_syncrates); i++) {
|
|
|
|
if (period_factor == scsi_syncrates[i].period_factor) {
|
|
/* Period in kHz */
|
|
return (100000000 / scsi_syncrates[i].period);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Wasn't in the table, so use the standard
|
|
* 4 times conversion.
|
|
*/
|
|
return (10000000 / (period_factor * 4 * 10));
|
|
}
|
|
|
|
static void
|
|
ahc_format_transinfo(struct seq_file *m, struct ahc_transinfo *tinfo)
|
|
{
|
|
u_int speed;
|
|
u_int freq;
|
|
u_int mb;
|
|
|
|
speed = 3300;
|
|
freq = 0;
|
|
if (tinfo->offset != 0) {
|
|
freq = ahc_calc_syncsrate(tinfo->period);
|
|
speed = freq;
|
|
}
|
|
speed *= (0x01 << tinfo->width);
|
|
mb = speed / 1000;
|
|
if (mb > 0)
|
|
seq_printf(m, "%d.%03dMB/s transfers", mb, speed % 1000);
|
|
else
|
|
seq_printf(m, "%dKB/s transfers", speed);
|
|
|
|
if (freq != 0) {
|
|
seq_printf(m, " (%d.%03dMHz%s, offset %d",
|
|
freq / 1000, freq % 1000,
|
|
(tinfo->ppr_options & MSG_EXT_PPR_DT_REQ) != 0
|
|
? " DT" : "", tinfo->offset);
|
|
}
|
|
|
|
if (tinfo->width > 0) {
|
|
if (freq != 0) {
|
|
seq_puts(m, ", ");
|
|
} else {
|
|
seq_puts(m, " (");
|
|
}
|
|
seq_printf(m, "%dbit)", 8 * (0x01 << tinfo->width));
|
|
} else if (freq != 0) {
|
|
seq_putc(m, ')');
|
|
}
|
|
seq_putc(m, '\n');
|
|
}
|
|
|
|
static void
|
|
ahc_dump_target_state(struct ahc_softc *ahc, struct seq_file *m,
|
|
u_int our_id, char channel, u_int target_id,
|
|
u_int target_offset)
|
|
{
|
|
struct scsi_target *starget;
|
|
struct ahc_initiator_tinfo *tinfo;
|
|
struct ahc_tmode_tstate *tstate;
|
|
int lun;
|
|
|
|
tinfo = ahc_fetch_transinfo(ahc, channel, our_id,
|
|
target_id, &tstate);
|
|
if ((ahc->features & AHC_TWIN) != 0)
|
|
seq_printf(m, "Channel %c ", channel);
|
|
seq_printf(m, "Target %d Negotiation Settings\n", target_id);
|
|
seq_puts(m, "\tUser: ");
|
|
ahc_format_transinfo(m, &tinfo->user);
|
|
starget = ahc->platform_data->starget[target_offset];
|
|
if (!starget)
|
|
return;
|
|
|
|
seq_puts(m, "\tGoal: ");
|
|
ahc_format_transinfo(m, &tinfo->goal);
|
|
seq_puts(m, "\tCurr: ");
|
|
ahc_format_transinfo(m, &tinfo->curr);
|
|
|
|
for (lun = 0; lun < AHC_NUM_LUNS; lun++) {
|
|
struct scsi_device *sdev;
|
|
|
|
sdev = scsi_device_lookup_by_target(starget, lun);
|
|
|
|
if (sdev == NULL)
|
|
continue;
|
|
|
|
ahc_dump_device_state(m, sdev);
|
|
}
|
|
}
|
|
|
|
static void
|
|
ahc_dump_device_state(struct seq_file *m, struct scsi_device *sdev)
|
|
{
|
|
struct ahc_linux_device *dev = scsi_transport_device_data(sdev);
|
|
|
|
seq_printf(m, "\tChannel %c Target %d Lun %d Settings\n",
|
|
sdev->sdev_target->channel + 'A',
|
|
sdev->sdev_target->id, (u8)sdev->lun);
|
|
|
|
seq_printf(m, "\t\tCommands Queued %ld\n", dev->commands_issued);
|
|
seq_printf(m, "\t\tCommands Active %d\n", dev->active);
|
|
seq_printf(m, "\t\tCommand Openings %d\n", dev->openings);
|
|
seq_printf(m, "\t\tMax Tagged Openings %d\n", dev->maxtags);
|
|
seq_printf(m, "\t\tDevice Queue Frozen Count %d\n", dev->qfrozen);
|
|
}
|
|
|
|
int
|
|
ahc_proc_write_seeprom(struct Scsi_Host *shost, char *buffer, int length)
|
|
{
|
|
struct ahc_softc *ahc = *(struct ahc_softc **)shost->hostdata;
|
|
struct seeprom_descriptor sd;
|
|
int have_seeprom;
|
|
u_long s;
|
|
int paused;
|
|
int written;
|
|
|
|
/* Default to failure. */
|
|
written = -EINVAL;
|
|
ahc_lock(ahc, &s);
|
|
paused = ahc_is_paused(ahc);
|
|
if (!paused)
|
|
ahc_pause(ahc);
|
|
|
|
if (length != sizeof(struct seeprom_config)) {
|
|
printk("ahc_proc_write_seeprom: incorrect buffer size\n");
|
|
goto done;
|
|
}
|
|
|
|
have_seeprom = ahc_verify_cksum((struct seeprom_config*)buffer);
|
|
if (have_seeprom == 0) {
|
|
printk("ahc_proc_write_seeprom: cksum verification failed\n");
|
|
goto done;
|
|
}
|
|
|
|
sd.sd_ahc = ahc;
|
|
#if AHC_PCI_CONFIG > 0
|
|
if ((ahc->chip & AHC_PCI) != 0) {
|
|
sd.sd_control_offset = SEECTL;
|
|
sd.sd_status_offset = SEECTL;
|
|
sd.sd_dataout_offset = SEECTL;
|
|
if (ahc->flags & AHC_LARGE_SEEPROM)
|
|
sd.sd_chip = C56_66;
|
|
else
|
|
sd.sd_chip = C46;
|
|
sd.sd_MS = SEEMS;
|
|
sd.sd_RDY = SEERDY;
|
|
sd.sd_CS = SEECS;
|
|
sd.sd_CK = SEECK;
|
|
sd.sd_DO = SEEDO;
|
|
sd.sd_DI = SEEDI;
|
|
have_seeprom = ahc_acquire_seeprom(ahc, &sd);
|
|
} else
|
|
#endif
|
|
if ((ahc->chip & AHC_VL) != 0) {
|
|
sd.sd_control_offset = SEECTL_2840;
|
|
sd.sd_status_offset = STATUS_2840;
|
|
sd.sd_dataout_offset = STATUS_2840;
|
|
sd.sd_chip = C46;
|
|
sd.sd_MS = 0;
|
|
sd.sd_RDY = EEPROM_TF;
|
|
sd.sd_CS = CS_2840;
|
|
sd.sd_CK = CK_2840;
|
|
sd.sd_DO = DO_2840;
|
|
sd.sd_DI = DI_2840;
|
|
have_seeprom = TRUE;
|
|
} else {
|
|
printk("ahc_proc_write_seeprom: unsupported adapter type\n");
|
|
goto done;
|
|
}
|
|
|
|
if (!have_seeprom) {
|
|
printk("ahc_proc_write_seeprom: No Serial EEPROM\n");
|
|
goto done;
|
|
} else {
|
|
u_int start_addr;
|
|
|
|
if (ahc->seep_config == NULL) {
|
|
ahc->seep_config = kmalloc(sizeof(*ahc->seep_config), GFP_ATOMIC);
|
|
if (ahc->seep_config == NULL) {
|
|
printk("aic7xxx: Unable to allocate serial "
|
|
"eeprom buffer. Write failing\n");
|
|
goto done;
|
|
}
|
|
}
|
|
printk("aic7xxx: Writing Serial EEPROM\n");
|
|
start_addr = 32 * (ahc->channel - 'A');
|
|
ahc_write_seeprom(&sd, (u_int16_t *)buffer, start_addr,
|
|
sizeof(struct seeprom_config)/2);
|
|
ahc_read_seeprom(&sd, (uint16_t *)ahc->seep_config,
|
|
start_addr, sizeof(struct seeprom_config)/2);
|
|
#if AHC_PCI_CONFIG > 0
|
|
if ((ahc->chip & AHC_VL) == 0)
|
|
ahc_release_seeprom(&sd);
|
|
#endif
|
|
written = length;
|
|
}
|
|
|
|
done:
|
|
if (!paused)
|
|
ahc_unpause(ahc);
|
|
ahc_unlock(ahc, &s);
|
|
return (written);
|
|
}
|
|
|
|
/*
|
|
* Return information to handle /proc support for the driver.
|
|
*/
|
|
int
|
|
ahc_linux_show_info(struct seq_file *m, struct Scsi_Host *shost)
|
|
{
|
|
struct ahc_softc *ahc = *(struct ahc_softc **)shost->hostdata;
|
|
char ahc_info[256];
|
|
u_int max_targ;
|
|
u_int i;
|
|
|
|
seq_printf(m, "Adaptec AIC7xxx driver version: %s\n",
|
|
AIC7XXX_DRIVER_VERSION);
|
|
seq_printf(m, "%s\n", ahc->description);
|
|
ahc_controller_info(ahc, ahc_info);
|
|
seq_printf(m, "%s\n", ahc_info);
|
|
seq_printf(m, "Allocated SCBs: %d, SG List Length: %d\n\n",
|
|
ahc->scb_data->numscbs, AHC_NSEG);
|
|
|
|
|
|
if (ahc->seep_config == NULL)
|
|
seq_puts(m, "No Serial EEPROM\n");
|
|
else {
|
|
seq_puts(m, "Serial EEPROM:\n");
|
|
for (i = 0; i < sizeof(*ahc->seep_config)/2; i++) {
|
|
if (((i % 8) == 0) && (i != 0)) {
|
|
seq_putc(m, '\n');
|
|
}
|
|
seq_printf(m, "0x%.4x ",
|
|
((uint16_t*)ahc->seep_config)[i]);
|
|
}
|
|
seq_putc(m, '\n');
|
|
}
|
|
seq_putc(m, '\n');
|
|
|
|
max_targ = 16;
|
|
if ((ahc->features & (AHC_WIDE|AHC_TWIN)) == 0)
|
|
max_targ = 8;
|
|
|
|
for (i = 0; i < max_targ; i++) {
|
|
u_int our_id;
|
|
u_int target_id;
|
|
char channel;
|
|
|
|
channel = 'A';
|
|
our_id = ahc->our_id;
|
|
target_id = i;
|
|
if (i > 7 && (ahc->features & AHC_TWIN) != 0) {
|
|
channel = 'B';
|
|
our_id = ahc->our_id_b;
|
|
target_id = i % 8;
|
|
}
|
|
|
|
ahc_dump_target_state(ahc, m, our_id,
|
|
channel, target_id, i);
|
|
}
|
|
return 0;
|
|
}
|