1 /* $Id: advansys.h,v 1.18 1999/11/29 21:47:16 bobf Exp bobf $ */
2
3 /*
4 * advansys.h - Linux Host Driver for AdvanSys SCSI Adapters
5 *
6 * Copyright (c) 1995-1998 Advanced System Products, Inc.
7 * All Rights Reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that redistributions of source
11 * code retain the above copyright notice and this comment without
12 * modification.
13 *
14 * There is an AdvanSys Linux WWW page at:
15 * http://www.advansys.com/linux.html
16 *
17 * The latest version of the AdvanSys driver is available at:
18 * ftp://ftp.advansys.com/pub/linux
19 *
20 * Please send questions, comments, bug reports to:
21 * bobf@advansys.com (Bob Frey)
22 */
23
24 #ifndef _ADVANSYS_H
25 #define _ADVANSYS_H
26
27 /* Convert Linux Version, Patch-level, Sub-level to LINUX_VERSION_CODE. */
28 #define ASC_LINUX_VERSION(V, P, S) (((V) * 65536) + ((P) * 256) + (S))
29
30 #ifndef LINUX_VERSION_CODE
31 #include <linux/version.h>
32 #endif /* LINUX_VERSION_CODE */
33
34 /*
35 * Scsi_Host_Template function prototypes.
36 */
37 int advansys_detect(Scsi_Host_Template *);
38 int advansys_release(struct Scsi_Host *);
39 const char *advansys_info(struct Scsi_Host *);
40 int advansys_command(Scsi_Cmnd *);
41 int advansys_queuecommand(Scsi_Cmnd *, void (* done)(Scsi_Cmnd *));
42 int advansys_abort(Scsi_Cmnd *);
43 #if LINUX_VERSION_CODE < ASC_LINUX_VERSION(1,3,89)
44 int advansys_reset(Scsi_Cmnd *);
45 #else /* version >= v1.3.89 */
46 int advansys_reset(Scsi_Cmnd *, unsigned int);
47 #endif /* version >= v1.3.89 */
48 #if LINUX_VERSION_CODE < ASC_LINUX_VERSION(1,3,0)
49 int advansys_biosparam(Disk *, int, int[]);
50 #else /* version >= v1.3.0 */
51 int advansys_biosparam(Disk *, kdev_t, int[]);
52 #if LINUX_VERSION_CODE < ASC_LINUX_VERSION(2,3,28)
53 extern struct proc_dir_entry proc_scsi_advansys;
54 #endif /* version < v2.3.28 */
55 int advansys_proc_info(char *, char **, off_t, int, int, int);
56 #endif /* version >= v1.3.0 */
57
58 /* init/main.c setup function */
59 void advansys_setup(char *, int *);
60
61 /*
62 * AdvanSys Host Driver Scsi_Host_Template (struct SHT) from hosts.h.
63 */
64 #if LINUX_VERSION_CODE < ASC_LINUX_VERSION(1,3,0)
65 #define ADVANSYS { \
66 NULL, /* struct SHT *next */ \
67 NULL, /* int *usage_count */ \
68 "advansys", /* char *name */ \
69 advansys_detect, /* int (*detect)(struct SHT *) */ \
70 advansys_release, /* int (*release)(struct Scsi_Host *) */ \
71 advansys_info, /* const char *(*info)(struct Scsi_Host *) */ \
72 advansys_command, /* int (*command)(Scsi_Cmnd *) */ \
73 advansys_queuecommand, \
74 /* int (*queuecommand)(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *)) */ \
75 advansys_abort, /* int (*abort)(Scsi_Cmnd *) */ \
76 advansys_reset, /* int (*reset)(Scsi_Cmnd *) */ \
77 NULL, /* int (*slave_attach)(int, int) */ \
78 advansys_biosparam, /* int (* bios_param)(Disk *, int, int []) */ \
79 /* \
80 * The following fields are set per adapter in advansys_detect(). \
81 */ \
82 0, /* int can_queue */ \
83 0, /* int this_id */ \
84 0, /* short unsigned int sg_tablesize */ \
85 0, /* short cmd_per_lun */ \
86 0, /* unsigned char present */ \
87 /* \
88 * Because the driver may control an ISA adapter 'unchecked_isa_dma' \
89 * must be set. The flag will be cleared in advansys_detect for non-ISA \
90 * adapters. Refer to the comment in scsi_module.c for more information. \
91 */ \
92 1, /* unsigned unchecked_isa_dma:1 */ \
93 /* \
94 * All adapters controlled by this driver are capable of large \
95 * scatter-gather lists. According to the mid-level SCSI documentation \
96 * this obviates any performance gain provided by setting \
97 * 'use_clustering'. But empirically while CPU utilization is increased \
98 * by enabling clustering, I/O throughput increases as well. \
99 */ \
100 ENABLE_CLUSTERING, /* unsigned use_clustering:1 */ \
101 }
102 #elif LINUX_VERSION_CODE < ASC_LINUX_VERSION(2,1,75)
103 #define ADVANSYS { \
104 NULL, /* struct SHT *next */ \
105 NULL, \
106 /* version < v2.1.23 long *usage_count */ \
107 /* version >= v2.1.23 struct module * */ \
108 &proc_scsi_advansys, /* struct proc_dir_entry *proc_dir */ \
109 advansys_proc_info, \
110 /* int (*proc_info)(char *, char **, off_t, int, int, int) */ \
111 "advansys", /* const char *name */ \
112 advansys_detect, /* int (*detect)(struct SHT *) */ \
113 advansys_release, /* int (*release)(struct Scsi_Host *) */ \
114 advansys_info, /* const char *(*info)(struct Scsi_Host *) */ \
115 advansys_command, /* int (*command)(Scsi_Cmnd *) */ \
116 advansys_queuecommand, \
117 /* int (*queuecommand)(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *)) */ \
118 advansys_abort, /* int (*abort)(Scsi_Cmnd *) */ \
119 advansys_reset, \
120 /* version < v1.3.89 int (*reset)(Scsi_Cmnd *) */ \
121 /* version >= v1.3.89 int (*reset)(Scsi_Cmnd *, unsigned int) */ \
122 NULL, /* int (*slave_attach)(int, int) */ \
123 advansys_biosparam, /* int (* bios_param)(Disk *, kdev_t, int []) */ \
124 /* \
125 * The following fields are set per adapter in advansys_detect(). \
126 */ \
127 0, /* int can_queue */ \
128 0, /* int this_id */ \
129 0, /* short unsigned int sg_tablesize */ \
130 0, /* short cmd_per_lun */ \
131 0, /* unsigned char present */ \
132 /* \
133 * Because the driver may control an ISA adapter 'unchecked_isa_dma' \
134 * must be set. The flag will be cleared in advansys_detect for non-ISA \
135 * adapters. Refer to the comment in scsi_module.c for more information. \
136 */ \
137 1, /* unsigned unchecked_isa_dma:1 */ \
138 /* \
139 * All adapters controlled by this driver are capable of large \
140 * scatter-gather lists. According to the mid-level SCSI documentation \
141 * this obviates any performance gain provided by setting \
142 * 'use_clustering'. But empirically while CPU utilization is increased \
143 * by enabling clustering, I/O throughput increases as well. \
144 */ \
145 ENABLE_CLUSTERING, /* unsigned use_clustering:1 */ \
146 }
147 #elif LINUX_VERSION_CODE < ASC_LINUX_VERSION(2,3,28)
148 #define ADVANSYS { \
149 proc_dir: &proc_scsi_advansys, \
150 proc_info: advansys_proc_info, \
151 name: "advansys", \
152 detect: advansys_detect, \
153 release: advansys_release, \
154 info: advansys_info, \
155 command: advansys_command, \
156 queuecommand: advansys_queuecommand, \
157 abort: advansys_abort, \
158 reset: advansys_reset, \
159 bios_param: advansys_biosparam, \
160 /* \
161 * Because the driver may control an ISA adapter 'unchecked_isa_dma' \
162 * must be set. The flag will be cleared in advansys_detect for non-ISA \
163 * adapters. Refer to the comment in scsi_module.c for more information. \
164 */ \
165 unchecked_isa_dma: 1, \
166 /* \
167 * All adapters controlled by this driver are capable of large \
168 * scatter-gather lists. According to the mid-level SCSI documentation \
169 * this obviates any performance gain provided by setting \
170 * 'use_clustering'. But empirically while CPU utilization is increased \
171 * by enabling clustering, I/O throughput increases as well. \
172 */ \
173 use_clustering: ENABLE_CLUSTERING, \
174 }
175 #else /* version >= v2.3.28 */
176 #define ADVANSYS { \
177 proc_name: "advansys", \
178 proc_info: advansys_proc_info, \
179 name: "advansys", \
180 detect: advansys_detect, \
181 release: advansys_release, \
182 info: advansys_info, \
183 command: advansys_command, \
184 queuecommand: advansys_queuecommand, \
185 abort: advansys_abort, \
186 reset: advansys_reset, \
187 bios_param: advansys_biosparam, \
188 /* \
189 * Because the driver may control an ISA adapter 'unchecked_isa_dma' \
190 * must be set. The flag will be cleared in advansys_detect for non-ISA \
191 * adapters. Refer to the comment in scsi_module.c for more information. \
192 */ \
193 unchecked_isa_dma: 1, \
194 /* \
195 * All adapters controlled by this driver are capable of large \
196 * scatter-gather lists. According to the mid-level SCSI documentation \
197 * this obviates any performance gain provided by setting \
198 * 'use_clustering'. But empirically while CPU utilization is increased \
199 * by enabling clustering, I/O throughput increases as well. \
200 */ \
201 use_clustering: ENABLE_CLUSTERING, \
202 }
203 #endif /* version >= v2.3.28 */
204 #endif /* _ADVANSYS_H */
205
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