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simons |
/*+M*************************************************************************
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* Adaptec AIC7xxx device driver proc support for Linux.
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*
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* Copyright (c) 1995, 1996 Dean W. Gehnert
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* ----------------------------------------------------------------
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* o Modified from the EATA-DMA /proc support.
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* o Additional support for device block statistics provided by
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* Matthew Jacob.
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* o Correction of overflow by Heinz Mauelshagen
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* o Adittional corrections by Doug Ledford
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*
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* Dean W. Gehnert, deang@teleport.com, 05/01/96
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*
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* $Id: aic7xxx_proc.c,v 1.1.1.1 2001-09-10 07:44:31 simons Exp $
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*-M*************************************************************************/
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#define BLS (&aic7xxx_buffer[size])
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#define HDRB \
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" < 2K 2K+ 4K+ 8K+ 16K+ 32K+ 64K+ 128K+"
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#ifdef PROC_DEBUG
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extern int vsprintf(char *, const char *, va_list);
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static void
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proc_debug(const char *fmt, ...)
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{
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va_list ap;
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char buf[256];
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va_start(ap, fmt);
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vsprintf(buf, fmt, ap);
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printk(buf);
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va_end(ap);
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}
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#else /* PROC_DEBUG */
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# define proc_debug(fmt, args...)
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#endif /* PROC_DEBUG */
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static int aic7xxx_buffer_size = 0;
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static char *aic7xxx_buffer = NULL;
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/*+F*************************************************************************
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* Function:
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* aic7xxx_set_info
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*
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* Description:
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* Set parameters for the driver from the /proc filesystem.
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*-F*************************************************************************/
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int
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aic7xxx_set_info(char *buffer, int length, struct Scsi_Host *HBAptr)
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{
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proc_debug("aic7xxx_set_info(): %s\n", buffer);
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return (-ENOSYS); /* Currently this is a no-op */
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}
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/*+F*************************************************************************
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* Function:
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* aic7xxx_proc_info
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*
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* Description:
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* Return information to handle /proc support for the driver.
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*-F*************************************************************************/
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int
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aic7xxx_proc_info ( char *buffer, char **start, off_t offset, int length,
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int hostno, int inout)
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{
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struct Scsi_Host *HBAptr;
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struct aic7xxx_host *p;
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int size = 0;
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unsigned char i;
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struct aic7xxx_xferstats *sp;
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unsigned char target;
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HBAptr = NULL;
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for(p=first_aic7xxx; p->host->host_no != hostno; p=p->next)
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;
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if (!p)
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{
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size += sprintf(buffer, "Can't find adapter for host number %d\n", hostno);
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if (size > length)
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{
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return (size);
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}
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else
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{
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return (length);
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}
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}
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HBAptr = p->host;
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if (inout == TRUE) /* Has data been written to the file? */
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{
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return (aic7xxx_set_info(buffer, length, HBAptr));
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}
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p = (struct aic7xxx_host *) HBAptr->hostdata;
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/*
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* It takes roughly 1K of space to hold all relevant card info, not
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* counting any proc stats, so we start out with a 1.5k buffer size and
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* if proc_stats is defined, then we sweep the stats structure to see
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* how many drives we will be printing out for and add 384 bytes per
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* device with active stats.
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*
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* Hmmmm...that 1.5k seems to keep growing as items get added so they
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* can be easily viewed for debugging purposes. So, we bumped that
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* 1.5k to 4k so we can quit having to bump it all the time.
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*/
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size = 4096;
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for (target = 0; target < MAX_TARGETS; target++)
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{
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if (p->dev_flags[target] & DEVICE_PRESENT)
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#ifdef AIC7XXX_PROC_STATS
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size += 512;
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#else
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size += 256;
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#endif
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}
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if (aic7xxx_buffer_size != size)
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{
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if (aic7xxx_buffer != NULL)
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{
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kfree(aic7xxx_buffer);
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aic7xxx_buffer_size = 0;
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}
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aic7xxx_buffer = kmalloc(size, GFP_KERNEL);
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}
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if (aic7xxx_buffer == NULL)
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{
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size = sprintf(buffer, "AIC7xxx - kmalloc error at line %d\n",
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__LINE__);
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return size;
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}
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aic7xxx_buffer_size = size;
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size = 0;
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size += sprintf(BLS, "Adaptec AIC7xxx driver version: ");
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size += sprintf(BLS, "%s/", AIC7XXX_C_VERSION);
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size += sprintf(BLS, "%s", AIC7XXX_H_VERSION);
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size += sprintf(BLS, "\n");
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size += sprintf(BLS, "Compile Options:\n");
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#ifdef CONFIG_AIC7XXX_TCQ_ON_BY_DEFAULT
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size += sprintf(BLS, " TCQ Enabled By Default : Enabled\n");
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#else
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size += sprintf(BLS, " TCQ Enabled By Default : Disabled\n");
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#endif
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#ifdef AIC7XXX_PROC_STATS
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size += sprintf(BLS, " AIC7XXX_PROC_STATS : Enabled\n");
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#else
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size += sprintf(BLS, " AIC7XXX_PROC_STATS : Disabled\n");
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#endif
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size += sprintf(BLS, " AIC7XXX_RESET_DELAY : %d\n", AIC7XXX_RESET_DELAY);
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size += sprintf(BLS, "\n");
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size += sprintf(BLS, "Adapter Configuration:\n");
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size += sprintf(BLS, " SCSI Adapter: %s\n",
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board_names[p->board_name_index]);
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if (p->flags & AHC_TWIN)
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size += sprintf(BLS, " Twin Channel\n");
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else
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{
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char *channel = "";
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char *ultra = "";
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char *wide = "Narrow ";
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if (p->flags & AHC_MULTI_CHANNEL)
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{
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channel = " Channel A";
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if (p->flags & (AHC_CHNLB|AHC_CHNLC))
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channel = (p->flags & AHC_CHNLB) ? " Channel B" : " Channel C";
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}
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if (p->features & AHC_WIDE)
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wide = "Wide ";
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if (p->features & AHC_ULTRA2)
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ultra = "Ultra2-LVD/SE ";
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else if (p->features & AHC_ULTRA)
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ultra = "Ultra ";
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size += sprintf(BLS, " %s%sController%s\n",
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ultra, wide, channel);
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}
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if( !(p->maddr) )
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{
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size += sprintf(BLS, " Programmed I/O Base: %lx\n", p->base);
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}
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else
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{
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size += sprintf(BLS, " PCI MMAPed I/O Base: 0x%lx\n", p->mbase);
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}
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if( (p->chip & (AHC_VL | AHC_EISA)) )
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{
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size += sprintf(BLS, " BIOS Memory Address: 0x%08x\n", p->bios_address);
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}
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size += sprintf(BLS, " Adapter SEEPROM Config: %s\n",
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(p->flags & AHC_SEEPROM_FOUND) ? "SEEPROM found and used." :
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((p->flags & AHC_USEDEFAULTS) ? "SEEPROM not found, using defaults." :
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"SEEPROM not found, using leftover BIOS values.") );
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size += sprintf(BLS, " Adaptec SCSI BIOS: %s\n",
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(p->flags & AHC_BIOS_ENABLED) ? "Enabled" : "Disabled");
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size += sprintf(BLS, " IRQ: %d\n", HBAptr->irq);
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size += sprintf(BLS, " SCBs: Active %d, Max Active %d,\n",
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p->activescbs, p->max_activescbs);
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size += sprintf(BLS, " Allocated %d, HW %d, "
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"Page %d\n", p->scb_data->numscbs, p->scb_data->maxhscbs,
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p->scb_data->maxscbs);
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if (p->flags & AHC_EXTERNAL_SRAM)
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size += sprintf(BLS, " Using External SCB SRAM\n");
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size += sprintf(BLS, " Interrupts: %ld", p->isr_count);
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if (p->chip & AHC_EISA)
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{
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size += sprintf(BLS, " %s\n",
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(p->pause & IRQMS) ? "(Level Sensitive)" : "(Edge Triggered)");
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}
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else
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{
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size += sprintf(BLS, "\n");
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}
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size += sprintf(BLS, " BIOS Control Word: 0x%04x\n",
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p->bios_control);
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size += sprintf(BLS, " Adapter Control Word: 0x%04x\n",
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p->adapter_control);
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240 |
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size += sprintf(BLS, " Extended Translation: %sabled\n",
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(p->flags & AHC_EXTEND_TRANS_A) ? "En" : "Dis");
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size += sprintf(BLS, "Disconnect Enable Flags: 0x%04x\n", p->discenable);
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243 |
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if (p->features & (AHC_ULTRA | AHC_ULTRA2))
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{
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size += sprintf(BLS, " Ultra Enable Flags: 0x%04x\n", p->ultraenb);
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}
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size += sprintf(BLS, " Tag Queue Enable Flags: 0x%04x\n", p->tagenable);
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248 |
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size += sprintf(BLS, "Ordered Queue Tag Flags: 0x%04x\n", p->orderedtag);
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249 |
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size += sprintf(BLS, "Default Tag Queue Depth: %d\n", AIC7XXX_CMDS_PER_DEVICE);
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250 |
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size += sprintf(BLS, " Tagged Queue By Device array for aic7xxx host "
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"instance %d:\n", p->instance);
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252 |
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size += sprintf(BLS, " {");
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253 |
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for(i=0; i < (MAX_TARGETS - 1); i++)
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254 |
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size += sprintf(BLS, "%d,",aic7xxx_tag_info[p->instance].tag_commands[i]);
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255 |
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size += sprintf(BLS, "%d}\n",aic7xxx_tag_info[p->instance].tag_commands[i]);
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256 |
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size += sprintf(BLS, " Actual queue depth per device for aic7xxx host "
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257 |
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"instance %d:\n", p->instance);
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258 |
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size += sprintf(BLS, " {");
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259 |
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for(i=0; i < (MAX_TARGETS - 1); i++)
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260 |
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size += sprintf(BLS, "%d,", p->dev_max_queue_depth[i]);
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261 |
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size += sprintf(BLS, "%d}\n", p->dev_max_queue_depth[i]);
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262 |
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|
263 |
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size += sprintf(BLS, "\n");
|
264 |
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size += sprintf(BLS, "Statistics:\n\n");
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265 |
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for (target = 0; target < MAX_TARGETS; target++)
|
266 |
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{
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267 |
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sp = &p->stats[target];
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268 |
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if ((p->dev_flags[target] & DEVICE_PRESENT) == 0)
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269 |
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{
|
270 |
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continue;
|
271 |
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}
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272 |
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if (p->features & AHC_TWIN)
|
273 |
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{
|
274 |
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size += sprintf(BLS, "(scsi%d:%d:%d:%d)\n",
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275 |
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p->host_no, (target >> 3), (target & 0x7), 0);
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276 |
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}
|
277 |
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else
|
278 |
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{
|
279 |
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size += sprintf(BLS, "(scsi%d:%d:%d:%d)\n",
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280 |
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p->host_no, 0, target, 0);
|
281 |
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}
|
282 |
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size += sprintf(BLS, " Device using %s/%s",
|
283 |
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(p->transinfo[target].cur_width == MSG_EXT_WDTR_BUS_16_BIT) ?
|
284 |
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"Wide" : "Narrow",
|
285 |
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(p->transinfo[target].cur_offset != 0) ?
|
286 |
|
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"Sync transfers at " : "Async transfers.\n" );
|
287 |
|
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if (p->transinfo[target].cur_offset != 0)
|
288 |
|
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{
|
289 |
|
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struct aic7xxx_syncrate *sync_rate;
|
290 |
|
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int period = p->transinfo[target].cur_period;
|
291 |
|
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int rate = (p->transinfo[target].cur_width ==
|
292 |
|
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MSG_EXT_WDTR_BUS_16_BIT) ? 1 : 0;
|
293 |
|
|
|
294 |
|
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sync_rate = aic7xxx_find_syncrate(p, &period, AHC_SYNCRATE_ULTRA2);
|
295 |
|
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if (sync_rate != NULL)
|
296 |
|
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{
|
297 |
|
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size += sprintf(BLS, "%s MByte/sec, offset %d\n",
|
298 |
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sync_rate->rate[rate],
|
299 |
|
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p->transinfo[target].cur_offset );
|
300 |
|
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}
|
301 |
|
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else
|
302 |
|
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{
|
303 |
|
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size += sprintf(BLS, "3.3 MByte/sec, offset %d\n",
|
304 |
|
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p->transinfo[target].cur_offset );
|
305 |
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}
|
306 |
|
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}
|
307 |
|
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size += sprintf(BLS, " Transinfo settings: ");
|
308 |
|
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size += sprintf(BLS, "current(%d/%d/%d), ",
|
309 |
|
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p->transinfo[target].cur_period,
|
310 |
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p->transinfo[target].cur_offset,
|
311 |
|
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p->transinfo[target].cur_width);
|
312 |
|
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size += sprintf(BLS, "goal(%d/%d/%d), ",
|
313 |
|
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p->transinfo[target].goal_period,
|
314 |
|
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p->transinfo[target].goal_offset,
|
315 |
|
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p->transinfo[target].goal_width);
|
316 |
|
|
size += sprintf(BLS, "user(%d/%d/%d)\n",
|
317 |
|
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p->transinfo[target].user_period,
|
318 |
|
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p->transinfo[target].user_offset,
|
319 |
|
|
p->transinfo[target].user_width);
|
320 |
|
|
#ifdef AIC7XXX_PROC_STATS
|
321 |
|
|
size += sprintf(BLS, " Total transfers %ld (%ld reads and %ld writes)\n",
|
322 |
|
|
sp->r_total + sp->w_total, sp->r_total, sp->w_total);
|
323 |
|
|
size += sprintf(BLS, "%s\n", HDRB);
|
324 |
|
|
size += sprintf(BLS, " Reads:");
|
325 |
|
|
for (i = 0; i < NUMBER(sp->r_bins); i++)
|
326 |
|
|
{
|
327 |
|
|
size += sprintf(BLS, " %7ld", sp->r_bins[i]);
|
328 |
|
|
}
|
329 |
|
|
size += sprintf(BLS, "\n");
|
330 |
|
|
size += sprintf(BLS, " Writes:");
|
331 |
|
|
for (i = 0; i < NUMBER(sp->w_bins); i++)
|
332 |
|
|
{
|
333 |
|
|
size += sprintf(BLS, " %7ld", sp->w_bins[i]);
|
334 |
|
|
}
|
335 |
|
|
size += sprintf(BLS, "\n");
|
336 |
|
|
#else
|
337 |
|
|
size += sprintf(BLS, " Total transfers %ld (%ld reads and %ld writes)\n",
|
338 |
|
|
sp->r_total + sp->w_total, sp->r_total, sp->w_total);
|
339 |
|
|
#endif /* AIC7XXX_PROC_STATS */
|
340 |
|
|
size += sprintf(BLS, "\n\n");
|
341 |
|
|
}
|
342 |
|
|
|
343 |
|
|
if (size >= aic7xxx_buffer_size)
|
344 |
|
|
{
|
345 |
|
|
printk(KERN_WARNING "aic7xxx: Overflow in aic7xxx_proc.c\n");
|
346 |
|
|
}
|
347 |
|
|
|
348 |
|
|
if (offset > size - 1)
|
349 |
|
|
{
|
350 |
|
|
kfree(aic7xxx_buffer);
|
351 |
|
|
aic7xxx_buffer = NULL;
|
352 |
|
|
aic7xxx_buffer_size = length = 0;
|
353 |
|
|
*start = NULL;
|
354 |
|
|
}
|
355 |
|
|
else
|
356 |
|
|
{
|
357 |
|
|
*start = &aic7xxx_buffer[offset]; /* Start of wanted data */
|
358 |
|
|
if (size - offset < length)
|
359 |
|
|
{
|
360 |
|
|
length = size - offset;
|
361 |
|
|
}
|
362 |
|
|
}
|
363 |
|
|
|
364 |
|
|
return (length);
|
365 |
|
|
}
|
366 |
|
|
|
367 |
|
|
/*
|
368 |
|
|
* Overrides for Emacs so that we follow Linus's tabbing style.
|
369 |
|
|
* Emacs will notice this stuff at the end of the file and automatically
|
370 |
|
|
* adjust the settings for this buffer only. This must remain at the end
|
371 |
|
|
* of the file.
|
372 |
|
|
* ---------------------------------------------------------------------------
|
373 |
|
|
* Local variables:
|
374 |
|
|
* c-indent-level: 2
|
375 |
|
|
* c-brace-imaginary-offset: 0
|
376 |
|
|
* c-brace-offset: -2
|
377 |
|
|
* c-argdecl-indent: 2
|
378 |
|
|
* c-label-offset: -2
|
379 |
|
|
* c-continued-statement-offset: 2
|
380 |
|
|
* c-continued-brace-offset: 0
|
381 |
|
|
* indent-tabs-mode: nil
|
382 |
|
|
* tab-width: 8
|
383 |
|
|
* End:
|
384 |
|
|
*/
|