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/*
* Device driver for the SYMBIOS/LSILOGIC 53C8XX and 53C1010 family
* of PCI-SCSI IO processors.
*
* Copyright (C) 1999-2001 Gerard Roudier <groudier@free.fr>
*
* This driver is derived from the Linux sym53c8xx driver.
* Copyright (C) 1998-2000 Gerard Roudier
*
* The sym53c8xx driver is derived from the ncr53c8xx driver that had been
* a port of the FreeBSD ncr driver to Linux-1.2.13.
*
* The original ncr driver has been written for 386bsd and FreeBSD by
* Wolfgang Stanglmeier <wolf@cologne.de>
* Stefan Esser <se@mi.Uni-Koeln.de>
* Copyright (C) 1994 Wolfgang Stanglmeier
*
* Other major contributions:
*
* NVRAM detection and reading.
* Copyright (C) 1997 Richard Waltham <dormouse@farsrobt.demon.co.uk>
*
*-----------------------------------------------------------------------------
*
* 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 of the License, 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; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef SYM_CONF_H
#define SYM_CONF_H
#include "sym53c8xx.h"
/*
* Max number of targets.
* Maximum is 16 and you are advised not to change this value.
*/
#ifndef SYM_CONF_MAX_TARGET
#define SYM_CONF_MAX_TARGET (16)
#endif
/*
* Max number of logical units.
* SPI-2 allows up to 64 logical units, but in real life, target
* that implements more that 7 logical units are pretty rare.
* Anyway, the cost of accepting up to 64 logical unit is low in
* this driver, thus going with the maximum is acceptable.
*/
#ifndef SYM_CONF_MAX_LUN
#define SYM_CONF_MAX_LUN (64)
#endif
/*
* Max number of IO control blocks queued to the controller.
* Each entry needs 8 bytes and the queues are allocated contiguously.
* Since we donnot want to allocate more than a page, the theorical
* maximum is PAGE_SIZE/8. For safety, we announce a bit less to the
* access method. :)
* When not supplied, as it is suggested, the driver compute some
* good value for this parameter.
*/
/* #define SYM_CONF_MAX_START (PAGE_SIZE/8 - 16) */
/*
* Support for Immediate Arbitration.
* Not advised.
*/
/* #define SYM_CONF_IARB_SUPPORT */
/*
* Only relevant if IARB support configured.
* - Max number of successive settings of IARB hints.
* - Set IARB on arbitration lost.
*/
#define SYM_CONF_IARB_MAX 3
#define SYM_CONF_SET_IARB_ON_ARB_LOST 1
/*
* Returning wrong residuals may make problems.
* When zero, this define tells the driver to
* always return 0 as transfer residual.
* Btw, all my testings of residuals have succeeded.
*/
#define SYM_SETUP_RESIDUAL_SUPPORT 1
/*
* Supported maximum number of LUNs to announce to
* the access method.
* The driver supports up to 64 LUNs per target as
* required by SPI-2/SPI-3. However some SCSI devices
* designed prior to these specifications or not being
* conformant may be highly confused when they are
* asked about a LUN > 7.
*/
#ifndef SYM_SETUP_MAX_LUN
#define SYM_SETUP_MAX_LUN (8)
#endif
#endif /* SYM_CONF_H */