/*+M*************************************************************************
* Adaptec AIC7xxx device driver proc support for Linux.
*
* Copyright (c) 1995, 1996 Dean W. Gehnert
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
* ----------------------------------------------------------------
* o Modified from the EATA-DMA /proc support.
* o Additional support for device block statistics provided by
* Matthew Jacob.
* o Correction of overflow by Heinz Mauelshagen
* o Adittional corrections by Doug Ledford
*
* Dean W. Gehnert, deang@teleport.com, 05/01/96
*
* $Id: aic7xxx_proc.c,v 4.1 1997/06/97 08:23:42 deang Exp $
*-M*************************************************************************/
#define BLS (&aic7xxx_buffer[size])
#define HDRB \
" < 512 512-1K 1-2K 2-4K 4-8K 8-16K 16-32K 32-64K 64-128K >128K"
#ifdef PROC_DEBUG
extern int vsprintf(char *, const char *, va_list);
static void
proc_debug(const char *fmt, ...)
{
va_list ap;
char buf[256];
va_start(ap, fmt);
vsprintf(buf, fmt, ap);
printk(buf);
va_end(ap);
}
#else /* PROC_DEBUG */
# define proc_debug(fmt, args...)
#endif /* PROC_DEBUG */
static int aic7xxx_buffer_size = 0;
static char *aic7xxx_buffer = NULL;
static const char *bus_names[] = { "Single", "Twin", "Wide" };
static const char *chip_names[] = { "AIC-777x", "AIC-785x", "AIC-786x",
"AIC-787x", "AIC-788x" };
/*+F*************************************************************************
* Function:
* aic7xxx_set_info
*
* Description:
* Set parameters for the driver from the /proc filesystem.
*-F*************************************************************************/
int
aic7xxx_set_info(char *buffer, int length, struct Scsi_Host *HBAptr)
{
proc_debug("aic7xxx_set_info(): %s\n", buffer);
return (-ENOSYS); /* Currently this is a no-op */
}
/*+F*************************************************************************
* Function:
* aic7xxx_proc_info
*
* Description:
* Return information to handle /proc support for the driver.
*-F*************************************************************************/
int
aic7xxx_proc_info ( char *buffer, char **start, off_t offset, int length,
int hostno, int inout)
{
struct Scsi_Host *HBAptr;
struct aic7xxx_host *p;
int found = FALSE;
int size = 0;
unsigned char i;
#ifdef AIC7XXX_PROC_STATS
struct aic7xxx_xferstats *sp;
unsigned char target, lun;
#endif
HBAptr = NULL;
for (i=0; i < NUMBER(aic7xxx_boards); i++)
{
if ((HBAptr = aic7xxx_boards[i]) != NULL)
{
if (HBAptr->host_no == hostno)
{
break;
}
while ((HBAptr->hostdata != NULL) && !found &&
((HBAptr = ((struct aic7xxx_host *) HBAptr->hostdata)->next) != NULL))
{
if (HBAptr->host_no == hostno)
{
found = TRUE;
}
}
if (!found)
{
HBAptr = NULL;
}
else
{
break;
}
}
}
if (HBAptr == NULL)
{
size += sprintf(buffer, "Can't find adapter for host number %d\n", hostno);
if (size > length)
{
return (size);
}
else
{
return (length);
}
}
if (inout == TRUE) /* Has data been written to the file? */
{
return (aic7xxx_set_info(buffer, length, HBAptr));
}
p = (struct aic7xxx_host *) HBAptr->hostdata;
/*
* It takes roughly 1K of space to hold all relevant card info, not
* counting any proc stats, so we start out with a 1.5k buffer size and
* if proc_stats is defined, then we sweep the stats structure to see
* how many drives we will be printing out for and add 384 bytes per
* device with active stats.
*/
size = 1536;
#ifdef AIC7XXX_PROC_STATS
for (target = 0; target < MAX_TARGETS; target++)
{
for (lun = 0; lun < MAX_LUNS; lun++)
{
if (p->stats[target][lun].xfers != 0)
size += 384;
}
}
#endif
if (aic7xxx_buffer_size != size)
{
if (aic7xxx_buffer != NULL)
{
kfree(aic7xxx_buffer);
aic7xxx_buffer_size = 0;
}
aic7xxx_buffer = kmalloc(size, GFP_KERNEL);
}
if (aic7xxx_buffer == NULL)
{
size = sprintf(buffer, "AIC7xxx - kmalloc error at line %d\n",
__LINE__);
return size;
}
aic7xxx_buffer_size = size;
size = 0;
size += sprintf(BLS, "Adaptec AIC7xxx driver version: ");
size += sprintf(BLS, "%s/", rcs_version(AIC7XXX_C_VERSION));
size += sprintf(BLS, "%s", rcs_version(AIC7XXX_H_VERSION));
#if 0
size += sprintf(BLS, "%s\n", rcs_version(AIC7XXX_SEQ_VER));
#endif
size += sprintf(BLS, "\n");
size += sprintf(BLS, "Compile Options:\n");
#ifdef AIC7XXX_RESET_DELAY
size += sprintf(BLS, " AIC7XXX_RESET_DELAY : %d\n", AIC7XXX_RESET_DELAY);
#endif
#ifdef AIC7XXX_CMDS_PER_LUN
size += sprintf(BLS, " AIC7XXX_CMDS_PER_LUN : %d\n", AIC7XXX_CMDS_PER_LUN);
#endif
#ifdef AIC7XXX_TAGGED_QUEUEING
size += sprintf(BLS, " AIC7XXX_TAGGED_QUEUEING: Enabled\n");
#else
size += sprintf(BLS, " AIC7XXX_TAGGED_QUEUEING: Disabled\n");
#endif
#ifdef AIC7XXX_PAGE_ENABLE
size += sprintf(BLS, " AIC7XXX_PAGE_ENABLE : Enabled\n");
#else
size += sprintf(BLS, " AIC7XXX_PAGE_ENABLE : Disabled\n");
#endif
#ifdef AIC7XXX_PROC_STATS
size += sprintf(BLS, " AIC7XXX_PROC_STATS : Enabled\n");
#else
size += sprintf(BLS, " AIC7XXX_PROC_STATS : Disabled\n");
#endif
size += sprintf(BLS, "\n");
size += sprintf(BLS, "Adapter Configuration:\n");
size += sprintf(BLS, " SCSI Adapter: %s\n",
board_names[p->chip_type]);
size += sprintf(BLS, " (%s chipset)\n",
chip_names[p->chip_class]);
size += sprintf(BLS, " Host Bus: %s\n", bus_names[p->bus_type]);
size += sprintf(BLS, " Base IO: %#.4x\n", p->base);
size += sprintf(BLS, " Base IO Memory: 0x%x\n", p->mbase);
size += sprintf(BLS, " IRQ: %d\n", HBAptr->irq);
size += sprintf(BLS, " SCBs: Used %d, HW %d, Page %d\n",
p->scb_data->numscbs, p->scb_data->maxhscbs, p->scb_data->maxscbs);
size += sprintf(BLS, " Interrupts: %d", p->isr_count);
if (p->chip_class == AIC_777x)
{
size += sprintf(BLS, " %s\n",
(p->pause & IRQMS) ? "(Level Sensitive)" : "(Edge Triggered)");
}
else
{
size += sprintf(BLS, "\n");
}
size += sprintf(BLS, " Serial EEPROM: %s\n",
(p->flags & HAVE_SEEPROM) ? "True" : "False");
size += sprintf(BLS, " Extended Translation: %sabled\n",
(p->flags & EXTENDED_TRANSLATION) ? "En" : "Dis");
size += sprintf(BLS, " SCSI Bus Reset: %sabled\n",
aic7xxx_no_reset ? "Dis" : "En");
size += sprintf(BLS, " Ultra SCSI: %sabled\n",
(p->flags & ULTRA_ENABLED) ? "En" : "Dis");
size += sprintf(BLS, "Disconnect Enable Flags: 0x%x\n", p->discenable);
#ifdef AIC7XXX_PROC_STATS
size += sprintf(BLS, "\n");
size += sprintf(BLS, "Statistics:\n");
for (target = 0; target < MAX_TARGETS; target++)
{
for (lun = 0; lun < MAX_LUNS; lun++)
{
sp = &p->stats[target][lun];
if (sp->xfers == 0)
{
continue;
}
if (p->bus_type == AIC_TWIN)
{
size += sprintf(BLS, "CHAN#%c (TGT %d LUN %d):\n",
'A' + (target >> 3), (target & 0x7), lun);
}
else
{
size += sprintf(BLS, "CHAN#%c (TGT %d LUN %d):\n",
'A', target, lun);
}
size += sprintf(BLS, "nxfers %ld (%ld read;%ld written)\n",
sp->xfers, sp->r_total, sp->w_total);
size += sprintf(BLS, "blks(512) rd=%ld; blks(512) wr=%ld\n",
sp->r_total512, sp->w_total512);
size += sprintf(BLS, "%s\n", HDRB);
size += sprintf(BLS, " Reads:");
for (i = 0; i < NUMBER(sp->r_bins); i++)
{
size += sprintf(BLS, "%6ld ", sp->r_bins[i]);
}
size += sprintf(BLS, "\n");
size += sprintf(BLS, "Writes:");
for (i = 0; i < NUMBER(sp->w_bins); i++)
{
size += sprintf(BLS, "%6ld ", sp->w_bins[i]);
}
size += sprintf(BLS, "\n\n");
}
}
#endif /* AIC7XXX_PROC_STATS */
if (size >= aic7xxx_buffer_size)
{
printk(KERN_WARNING "aic7xxx: Overflow in aic7xxx_proc.c\n");
}
if (offset > size - 1)
{
kfree(aic7xxx_buffer);
aic7xxx_buffer = NULL;
aic7xxx_buffer_size = length = 0;
*start = NULL;
}
else
{
*start = &aic7xxx_buffer[offset]; /* Start of wanted data */
if (size - offset < length)
{
length = size - offset;
}
}
return (length);
}
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-indent-level: 2
* c-brace-imaginary-offset: 0
* c-brace-offset: -2
* c-argdecl-indent: 2
* c-label-offset: -2
* c-continued-statement-offset: 2
* c-continued-brace-offset: 0
* indent-tabs-mode: nil
* tab-width: 8
* End:
*/
