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/*
* Device driver optimized for the Symbios/LSI 53C896/53C895A/53C1010
* PCI-SCSI controllers.
*
* Copyright (C) 1999 Gerard Roudier <groudier@club-internet.fr>
*
* This driver also supports the following Symbios/LSI PCI-SCSI chips:
* 53C810A, 53C825A, 53C860, 53C875, 53C876, 53C885, 53C895.
*
* but does not support earlier chips as the following ones:
* 53C810, 53C815, 53C825.
*
* This driver for FreeBSD-CAM is derived from the Linux sym53c8xx driver.
* Copyright (C) 1998-1999 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
*
* The initialisation code, and part of the code that addresses
* FreeBSD-CAM services is based on the aic7xxx driver for FreeBSD-CAM
* written by Justin T. Gibbs.
*
* Other major contributions:
*
* NVRAM detection and reading.
* Copyright (C) 1997 Richard Waltham <dormouse@farsrobt.demon.co.uk>
*
*-----------------------------------------------------------------------------
*
* 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.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, 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 DAMAGE.
*/
#ifndef SYM_CONF_H
#define SYM_CONF_H
/*-------------------------------------------------------------------
* Static configuration.
*-------------------------------------------------------------------
*/
/*
* Support for earliest LSI53C1010 boards.
* Commercial chips will be fixed, and then the
* corresponding code will get useless.
*/
/* #define SYMCONF_BROKEN_U3EN_SUPPORT */
/*
* Use Normal IO instead of MMIO.
*/
/* #define SYMCONF_IOMAPPED */
/*
* Max tags for a device (logical unit)
* We use a power of 2, (7) means 2<<7=128
* Maximum is 8 -> 256 tags
*/
#define SYMCONF_MAX_TAG_ORDER (6)
/*
* Max number of scatter/gather entries for en IO.
* Each entry costs 8 bytes in the internal CCB data structure.
* For now 65 should suffice given the BSD O/Ses capabilities.
*/
#define SYMCONF_MAX_SG (33)
/*
* Max number of targets.
* Maximum is 16 and you are advised not to change this value.
*/
#define SYMCONF_MAX_TARGET (16)
/*
* 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.
*/
#define SYMCONF_MAX_LUN (8)
/*
* 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 SYMCONF_MAX_START (PAGE_SIZE/8 - 16) */
/*
* Support for NVRAM.
*/
#define SYMCONF_NVRAM_SUPPORT
/* #define SYMCONF_DEBUG_SUPPORT */
/*
* Support for Immediate Arbitration.
* Not advised.
*/
/* #define SYMCONF_IARB_SUPPORT */
/*
* Not needed on FreeBSD, since the system allocator
* does provide naturally aligned addresses.
*/
#define SYMCONF_USE_INTERNAL_ALLOCATOR
/*-------------------------------------------------------------------
* Configuration that could be dynamic if it was possible
* to pass arguments to the driver.
*-------------------------------------------------------------------
*/
/*
* HOST default scsi id.
*/
#define SYMSETUP_HOST_ID 7
/*
* Max synchronous transfers.
*/
#define SYMSETUP_MIN_SYNC (9)
/*
* Max wide order.
*/
#define SYMSETUP_MAX_WIDE (1)
/*
* Max SCSI offset.
*/
#define SYMSETUP_MAX_OFFS (64)
/*
* Default number of tags.
*/
#define SYMSETUP_MAX_TAG (64)
/*
* SYMBIOS NVRAM format support.
*/
#define SYMSETUP_SYMBIOS_NVRAM (1)
/*
* TEKRAM NVRAM format support.
*/
#define SYMSETUP_TEKRAM_NVRAM (1)
/*
* PCI parity checking.
*/
#define SYMSETUP_PCI_PARITY (1)
/*
* SCSI parity checking.
*/
#define SYMSETUP_SCSI_PARITY (1)
/*
* SCSI activity LED.
*/
#define SYMSETUP_SCSI_LED (0)
/*
* SCSI differential.
*/
#define SYMSETUP_SCSI_DIFF (0)
/*
* IRQ mode.
*/
#define SYMSETUP_IRQ_MODE (0)
/*
* Check SCSI BUS signal on reset.
*/
#define SYMSETUP_SCSI_BUS_CHECK (1)
/*
* Max burst for PCI (1<<value)
* 7 means: (1<<7) = 128 DWORDS.
*/
#define SYMSETUP_BURST_ORDER (7)
/*
* Only relevant if IARB support configured.
* - Max number of successive settings of IARB hints.
* - Set IARB on arbitration lost.
*/
#define SYMCONF_IARB_MAX 3
#define SYMCONF_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 SYMCONF_RESIDUAL_SUPPORT 1
#endif /* SYM_CONF_H */
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