blob: d3941f2736dfa0d077252dd4fb18faa0e529d3ab [file] [log] [blame]
/*
* advansys.h - Linux Host Driver for AdvanSys SCSI Adapters
*
* Copyright (c) 1995-2000 Advanced System Products, Inc.
* Copyright (c) 2000-2001 ConnectCom Solutions, Inc.
* All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that redistributions of source
* code retain the above copyright notice and this comment without
* modification.
*
* As of March 8, 2000 Advanced System Products, Inc. (AdvanSys)
* changed its name to ConnectCom Solutions, Inc.
*
* There is an AdvanSys Linux WWW page at:
* http://www.connectcom.net/downloads/software/os/linux.html
* http://www.advansys.com/linux.html
*
* The latest released version of the AdvanSys driver is available at:
* ftp://ftp.advansys.com/pub/linux/linux.tgz
* ftp://ftp.connectcom.net/pub/linux/linux.tgz
*
* Please send questions, comments, bug reports to:
* linux@connectcom.net or bfrey@turbolinux.com.cn
*/
#ifndef _ADVANSYS_H
#define _ADVANSYS_H
#include <linux/config.h>
#ifndef LINUX_VERSION_CODE
#include <linux/version.h>
#endif /* LINUX_VERSION_CODE */
/* Convert Linux Version, Patch-level, Sub-level to LINUX_VERSION_CODE. */
#define ASC_LINUX_VERSION(V, P, S) (((V) * 65536) + ((P) * 256) + (S))
/* Driver supported only in version 2.2 and version >= 2.4. */
#if LINUX_VERSION_CODE < ASC_LINUX_VERSION(2,2,0) || \
(LINUX_VERSION_CODE > ASC_LINUX_VERSION(2,3,0) && \
LINUX_VERSION_CODE < ASC_LINUX_VERSION(2,4,0))
#error "AdvanSys driver supported only in 2.2 and 2.4 or greater kernels."
#endif
#define ASC_LINUX_KERNEL22 (LINUX_VERSION_CODE < ASC_LINUX_VERSION(2,4,0))
#define ASC_LINUX_KERNEL24 (LINUX_VERSION_CODE >= ASC_LINUX_VERSION(2,4,0))
/*
* Scsi_Host_Template function prototypes.
*/
int advansys_detect(Scsi_Host_Template *);
int advansys_release(struct Scsi_Host *);
const char *advansys_info(struct Scsi_Host *);
int advansys_queuecommand(Scsi_Cmnd *, void (* done)(Scsi_Cmnd *));
int advansys_reset(Scsi_Cmnd *);
int advansys_biosparam(struct scsi_device *, struct block_device *,
sector_t, int[]);
static int advansys_slave_configure(Scsi_Device *);
#ifdef CONFIG_PROC_FS
#if LINUX_VERSION_CODE < ASC_LINUX_VERSION(2,3,28)
extern struct proc_dir_entry proc_scsi_advansys;
#endif /* version < v2.3.28 */
int advansys_proc_info(char *, char **, off_t, int, int, int);
#else /* !defined(CONFIG_PROC_FS) */
#define advansys_proc_info NULL
#endif /* !defined(CONFIG_PROC_FS) */
/* init/main.c setup function */
void advansys_setup(char *, int *);
/*
* AdvanSys Host Driver Scsi_Host_Template (struct SHT) from hosts.h.
*/
#if ASC_LINUX_KERNEL24
#define ADVANSYS { \
.proc_name = "advansys", \
.proc_info = advansys_proc_info, \
.name = "advansys", \
.detect = advansys_detect, \
.release = advansys_release, \
.info = advansys_info, \
.queuecommand = advansys_queuecommand, \
.eh_bus_reset_handler = advansys_reset, \
.bios_param = advansys_biosparam, \
.slave_configure = advansys_slave_configure, \
/* \
* Because the driver may control an ISA adapter 'unchecked_isa_dma' \
* must be set. The flag will be cleared in advansys_detect for non-ISA \
* adapters. Refer to the comment in scsi_module.c for more information. \
*/ \
.unchecked_isa_dma = 1, \
/* \
* All adapters controlled by this driver are capable of large \
* scatter-gather lists. According to the mid-level SCSI documentation \
* this obviates any performance gain provided by setting \
* 'use_clustering'. But empirically while CPU utilization is increased \
* by enabling clustering, I/O throughput increases as well. \
*/ \
.use_clustering = ENABLE_CLUSTERING, \
}
#elif ASC_LINUX_KERNEL22
#define ADVANSYS { \
.proc_info = advansys_proc_info, \
.name = "advansys", \
.detect = advansys_detect, \
.release = advansys_release, \
.info = advansys_info, \
.queuecommand = advansys_queuecommand, \
.use_new_eh_code = 1, \
.eh_bus_reset_handler = advansys_reset, \
.bios_param = advansys_biosparam, \
/* \
* Because the driver may control an ISA adapter 'unchecked_isa_dma' \
* must be set. The flag will be cleared in advansys_detect for non-ISA \
* adapters. Refer to the comment in scsi_module.c for more information. \
*/ \
.unchecked_isa_dma = 1, \
/* \
* All adapters controlled by this driver are capable of large \
* scatter-gather lists. According to the mid-level SCSI documentation \
* this obviates any performance gain provided by setting \
* 'use_clustering'. But empirically while CPU utilization is increased \
* by enabling clustering, I/O throughput increases as well. \
*/ \
.use_clustering = ENABLE_CLUSTERING, \
}
#endif
#endif /* _ADVANSYS_H */