1 /* 2 * advansys.h - Linux Host Driver for AdvanSys SCSI Adapters 3 * 4 * Copyright (c) 1995-2000 Advanced System Products, Inc. 5 * Copyright (c) 2000-2001 ConnectCom Solutions, Inc. 6 * All Rights Reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that redistributions of source 10 * code retain the above copyright notice and this comment without 11 * modification. 12 * 13 * As of March 8, 2000 Advanced System Products, Inc. (AdvanSys) 14 * changed its name to ConnectCom Solutions, Inc. 15 * 16 * There is an AdvanSys Linux WWW page at: 17 * http://www.connectcom.net/downloads/software/os/linux.html 18 * http://www.advansys.com/linux.html 19 * 20 * The latest released version of the AdvanSys driver is available at: 21 * ftp://ftp.advansys.com/pub/linux/linux.tgz 22 * ftp://ftp.connectcom.net/pub/linux/linux.tgz 23 * 24 * Please send questions, comments, bug reports to: 25 * linux@connectcom.net or bfrey@turbolinux.com.cn 26 */ 27 28 #ifndef _ADVANSYS_H 29 #define _ADVANSYS_H 30 31 #include <linux/config.h> 32 #ifndef LINUX_VERSION_CODE 33 #include <linux/version.h> 34 #endif /* LINUX_VERSION_CODE */ 35 36 /* Convert Linux Version, Patch-level, Sub-level to LINUX_VERSION_CODE. */ 37 #define ASC_LINUX_VERSION(V, P, S) (((V) * 65536) + ((P) * 256) + (S)) 38 /* Driver supported only in version 2.2 and version >= 2.4. */ 39 #if LINUX_VERSION_CODE < ASC_LINUX_VERSION(2,2,0) || \ 40 (LINUX_VERSION_CODE > ASC_LINUX_VERSION(2,3,0) && \ 41 LINUX_VERSION_CODE < ASC_LINUX_VERSION(2,4,0)) 42 #error "AdvanSys driver supported only in 2.2 and 2.4 or greater kernels." 43 #endif 44 #define ASC_LINUX_KERNEL22 (LINUX_VERSION_CODE < ASC_LINUX_VERSION(2,4,0)) 45 #define ASC_LINUX_KERNEL24 (LINUX_VERSION_CODE >= ASC_LINUX_VERSION(2,4,0)) 46 47 /* 48 * Scsi_Host_Template function prototypes. 49 */ 50 int advansys_detect(Scsi_Host_Template *); 51 int advansys_release(struct Scsi_Host *); 52 const char *advansys_info(struct Scsi_Host *); 53 int advansys_queuecommand(Scsi_Cmnd *, void (* done)(Scsi_Cmnd *)); 54 int advansys_reset(Scsi_Cmnd *); 55 int advansys_biosparam(Disk *, kdev_t, int[]); 56 #ifdef CONFIG_PROC_FS 57 #if LINUX_VERSION_CODE < ASC_LINUX_VERSION(2,3,28) 58 extern struct proc_dir_entry proc_scsi_advansys; 59 #endif /* version < v2.3.28 */ 60 int advansys_proc_info(char *, char **, off_t, int, int, int); 61 #else /* !defined(CONFIG_PROC_FS) */ 62 #define advansys_proc_info NULL 63 #endif /* !defined(CONFIG_PROC_FS) */ 64 65 /* init/main.c setup function */ 66 void advansys_setup(char *, int *); 67 68 /* 69 * AdvanSys Host Driver Scsi_Host_Template (struct SHT) from hosts.h. 70 */ 71 #if ASC_LINUX_KERNEL24 72 #define ADVANSYS { \ 73 proc_name: "advansys", \ 74 proc_info: advansys_proc_info, \ 75 name: "advansys", \ 76 detect: advansys_detect, \ 77 release: advansys_release, \ 78 info: advansys_info, \ 79 queuecommand: advansys_queuecommand, \ 80 use_new_eh_code: 1, \ 81 eh_bus_reset_handler: advansys_reset, \ 82 bios_param: advansys_biosparam, \ 83 /* \ 84 * Because the driver may control an ISA adapter 'unchecked_isa_dma' \ 85 * must be set. The flag will be cleared in advansys_detect for non-ISA \ 86 * adapters. Refer to the comment in scsi_module.c for more information. \ 87 */ \ 88 unchecked_isa_dma: 1, \ 89 /* \ 90 * All adapters controlled by this driver are capable of large \ 91 * scatter-gather lists. According to the mid-level SCSI documentation \ 92 * this obviates any performance gain provided by setting \ 93 * 'use_clustering'. But empirically while CPU utilization is increased \ 94 * by enabling clustering, I/O throughput increases as well. \ 95 */ \ 96 use_clustering: ENABLE_CLUSTERING, \ 97 } 98 #elif ASC_LINUX_KERNEL22 99 #define ADVANSYS { \ 100 proc_info: advansys_proc_info, \ 101 name: "advansys", \ 102 detect: advansys_detect, \ 103 release: advansys_release, \ 104 info: advansys_info, \ 105 queuecommand: advansys_queuecommand, \ 106 use_new_eh_code: 1, \ 107 eh_bus_reset_handler: advansys_reset, \ 108 bios_param: advansys_biosparam, \ 109 /* \ 110 * Because the driver may control an ISA adapter 'unchecked_isa_dma' \ 111 * must be set. The flag will be cleared in advansys_detect for non-ISA \ 112 * adapters. Refer to the comment in scsi_module.c for more information. \ 113 */ \ 114 unchecked_isa_dma: 1, \ 115 /* \ 116 * All adapters controlled by this driver are capable of large \ 117 * scatter-gather lists. According to the mid-level SCSI documentation \ 118 * this obviates any performance gain provided by setting \ 119 * 'use_clustering'. But empirically while CPU utilization is increased \ 120 * by enabling clustering, I/O throughput increases as well. \ 121 */ \ 122 use_clustering: ENABLE_CLUSTERING, \ 123 } 124 #endif 125 #endif /* _ADVANSYS_H */ 126