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1.1 root 1: /*
2: * QLogic ISP1020 Intelligent SCSI Processor Driver (PCI)
3: * Written by Erik H. Moe, [email protected]
4: * Copyright 1995, Erik H. Moe
5: *
6: * This program is free software; you can redistribute it and/or modify it
7: * under the terms of the GNU General Public License as published by the
8: * Free Software Foundation; either version 2, or (at your option) any
9: * later version.
10: *
11: * This program is distributed in the hope that it will be useful, but
12: * WITHOUT ANY WARRANTY; without even the implied warranty of
13: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14: * General Public License for more details.
15: */
16:
17: /* Renamed and updated to 1.3.x by Michael Griffith <[email protected]> */
18:
19: /*
20: * $Date: 1999/04/26 05:54:53 $
21: * $Revision: 1.1 $
22: *
23: * $Log: qlogicisp.h,v $
24: * Revision 1.1 1999/04/26 05:54:53 tb
25: * 1998-11-30 OKUJI Yoshinori <[email protected]>
26: *
27: * Clean up linux emulation code to make it architecture-independent
28: * as much as possible.
29: *
30: * * linux: Renamed from linuxdev.
31: * * Makefile.in (objfiles): Add linux.o instead of linuxdev.o.
32: * (MAKE): New variable. Used for the linux.o target.
33: * * configure.in: Add AC_CHECK_TOOL(MAKE, make).
34: * * i386/i386/spl.h: Include <i386/ipl.h>, for compatibility with
35: * OSF Mach 3.0. Suggested by Elgin Lee <[email protected]>.
36: * * linux/src: Renamed from linux/linux.
37: * * linux/dev: Renamed from linux/mach.
38: * * linux/Drivers.in (AC_INIT): Use dev/include/linux/autoconf.h,
39: * instead of mach/include/linux/autoconf.h.
40: * * Makefile.in (all): Target ../linux.o instead of ../linuxdev.o.
41: * * linux/dev/drivers/block/genhd.c: Include <machine/spl.h> instead
42: * of <i386/ipl.h>.
43: * * linux/dev/drivers/net/auto_irq.c: Remove unneeded header files,
44: * <i386/ipl.h> and <i386/pic.h>.
45: * * linux/dev/init/main.c: Many i386-dependent codes moved to ...
46: * * linux/dev/arch/i386/irq.c: ... here.
47: * * linux/dev/arch/i386/setup.c: New file.
48: * * linux/dev/arch/i386/linux_emul.h: Likewise.
49: * * linux/dev/arch/i386/glue/timer.c: Merged into sched.c.
50: * * linux/dev/arch/i386/glue/sched.c: Include <machine/spl.h> instead
51: * of <i386/ipl.h>, and moved to ...
52: * * linux/dev/kernel/sched.c: ... here.
53: * * linux/dev/arch/i386/glue/block.c: Include <machine/spl.h> and
54: * <linux_emul.h>, instead of i386-dependent header files, and
55: * moved to ...
56: * * linux/dev/glue/blocl.c: ... here.
57: * * linux/dev/arch/i386/glue/net.c: Include <machine/spl.h> and
58: * <linux_emul.h>, instead of i386-dependent header files, and
59: * moved to ...
60: * * linux/dev/glue/net.c: ... here.
61: * * linux/dev/arch/i386/glue/misc.c: Remove `x86' and moved to ...
62: * * linux/dev/glue/misc.c: ... here.
63: * * linux/dev/arch/i386/glue/kmem.c: Moved to ...
64: * * linux/dev/glue/kmem.c: ... here.
65: *
66: * Revision 0.5 1995/09/22 02:32:56 root
67: * do auto request sense
68: *
69: * Revision 0.4 1995/08/07 04:48:28 root
70: * supply firmware with driver.
71: * numerous bug fixes/general cleanup of code.
72: *
73: * Revision 0.3 1995/07/16 16:17:16 root
74: * added reset/abort code.
75: *
76: * Revision 0.2 1995/06/29 03:19:43 root
77: * fixed biosparam.
78: * added queue protocol.
79: *
80: * Revision 0.1 1995/06/25 01:56:13 root
81: * Initial release.
82: *
83: */
84:
85: #ifndef _QLOGICISP_H
86: #define _QLOGICISP_H
87:
88: /*
89: * With the qlogic interface, every queue slot can hold a SCSI
90: * command with up to 4 scatter/gather entries. If we need more
91: * than 4 entries, continuation entries can be used that hold
92: * another 7 entries each. Unlike for other drivers, this means
93: * that the maximum number of scatter/gather entries we can
94: * support at any given time is a function of the number of queue
95: * slots available. That is, host->can_queue and host->sg_tablesize
96: * are dynamic and _not_ independent. This all works fine because
97: * requests are queued serially and the scatter/gather limit is
98: * determined for each queue request anew.
99: */
100: #define QLOGICISP_REQ_QUEUE_LEN 63 /* must be power of two - 1 */
101: #define QLOGICISP_MAX_SG(ql) (4 + ((ql) > 0) ? 7*((ql) - 1) : 0)
102:
103: int isp1020_detect(Scsi_Host_Template *);
104: int isp1020_release(struct Scsi_Host *);
105: const char * isp1020_info(struct Scsi_Host *);
106: int isp1020_queuecommand(Scsi_Cmnd *, void (* done)(Scsi_Cmnd *));
107: int isp1020_abort(Scsi_Cmnd *);
108: int isp1020_reset(Scsi_Cmnd *, unsigned int);
109: int isp1020_biosparam(Disk *, kdev_t, int[]);
110:
111: #ifndef NULL
112: #define NULL (0)
113: #endif
114:
115: extern struct proc_dir_entry proc_scsi_isp1020;
116:
117: #define QLOGICISP { \
118: /* next */ NULL, \
119: /* usage_count */ NULL, \
120: /* proc dir */ NULL, \
121: /* procfs info */ NULL, \
122: /* name */ NULL, \
123: /* detect */ isp1020_detect, \
124: /* release */ isp1020_release, \
125: /* info */ isp1020_info, \
126: /* command */ NULL, \
127: /* queuecommand */ isp1020_queuecommand, \
128: /* abort */ isp1020_abort, \
129: /* reset */ isp1020_reset, \
130: /* slave_attach */ NULL, \
131: /* bios_param */ isp1020_biosparam, \
132: /* can_queue */ QLOGICISP_REQ_QUEUE_LEN, \
133: /* this_id */ -1, \
134: /* sg_tablesize */ QLOGICISP_MAX_SG(QLOGICISP_REQ_QUEUE_LEN), \
135: /* cmd_per_lun */ 1, \
136: /* present */ 0, \
137: /* unchecked_isa_dma */ 0, \
138: /* use_clustering */ DISABLE_CLUSTERING \
139: }
140:
141: #endif /* _QLOGICISP_H */
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