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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2008-08-01 14:42:05 -0400
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2008-08-01 14:42:05 -0400
commitc6557e7f2b6ae76a44653d38f835174074c42e05 (patch)
treeda619a76b309cb1cd259d082af768a83cfcd6d52 /include/asm-s390/dasd.h
parentab4227cb2d936886069ef1056c02500d05beb15d (diff)
[S390] move include/asm-s390 to arch/s390/include/asm
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'include/asm-s390/dasd.h')
-rw-r--r--include/asm-s390/dasd.h270
1 files changed, 0 insertions, 270 deletions
diff --git a/include/asm-s390/dasd.h b/include/asm-s390/dasd.h
deleted file mode 100644
index 3f002e13d024..000000000000
--- a/include/asm-s390/dasd.h
+++ /dev/null
@@ -1,270 +0,0 @@
1/*
2 * File...........: linux/drivers/s390/block/dasd.c
3 * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
4 * Bugreports.to..: <Linux390@de.ibm.com>
5 * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000
6 *
7 * This file is the interface of the DASD device driver, which is exported to user space
8 * any future changes wrt the API will result in a change of the APIVERSION reported
9 * to userspace by the DASDAPIVER-ioctl
10 *
11 */
12
13#ifndef DASD_H
14#define DASD_H
15#include <linux/ioctl.h>
16
17#define DASD_IOCTL_LETTER 'D'
18
19#define DASD_API_VERSION 6
20
21/*
22 * struct dasd_information2_t
23 * represents any data about the device, which is visible to userspace.
24 * including foramt and featueres.
25 */
26typedef struct dasd_information2_t {
27 unsigned int devno; /* S/390 devno */
28 unsigned int real_devno; /* for aliases */
29 unsigned int schid; /* S/390 subchannel identifier */
30 unsigned int cu_type : 16; /* from SenseID */
31 unsigned int cu_model : 8; /* from SenseID */
32 unsigned int dev_type : 16; /* from SenseID */
33 unsigned int dev_model : 8; /* from SenseID */
34 unsigned int open_count;
35 unsigned int req_queue_len;
36 unsigned int chanq_len; /* length of chanq */
37 char type[4]; /* from discipline.name, 'none' for unknown */
38 unsigned int status; /* current device level */
39 unsigned int label_block; /* where to find the VOLSER */
40 unsigned int FBA_layout; /* fixed block size (like AIXVOL) */
41 unsigned int characteristics_size;
42 unsigned int confdata_size;
43 char characteristics[64]; /* from read_device_characteristics */
44 char configuration_data[256]; /* from read_configuration_data */
45 unsigned int format; /* format info like formatted/cdl/ldl/... */
46 unsigned int features; /* dasd features like 'ro',... */
47 unsigned int reserved0; /* reserved for further use ,... */
48 unsigned int reserved1; /* reserved for further use ,... */
49 unsigned int reserved2; /* reserved for further use ,... */
50 unsigned int reserved3; /* reserved for further use ,... */
51 unsigned int reserved4; /* reserved for further use ,... */
52 unsigned int reserved5; /* reserved for further use ,... */
53 unsigned int reserved6; /* reserved for further use ,... */
54 unsigned int reserved7; /* reserved for further use ,... */
55} dasd_information2_t;
56
57/*
58 * values to be used for dasd_information_t.format
59 * 0x00: NOT formatted
60 * 0x01: Linux disc layout
61 * 0x02: Common disc layout
62 */
63#define DASD_FORMAT_NONE 0
64#define DASD_FORMAT_LDL 1
65#define DASD_FORMAT_CDL 2
66/*
67 * values to be used for dasd_information_t.features
68 * 0x00: default features
69 * 0x01: readonly (ro)
70 * 0x02: use diag discipline (diag)
71 * 0x04: set the device initially online (internal use only)
72 * 0x08: enable ERP related logging
73 */
74#define DASD_FEATURE_DEFAULT 0x00
75#define DASD_FEATURE_READONLY 0x01
76#define DASD_FEATURE_USEDIAG 0x02
77#define DASD_FEATURE_INITIAL_ONLINE 0x04
78#define DASD_FEATURE_ERPLOG 0x08
79
80#define DASD_PARTN_BITS 2
81
82/*
83 * struct dasd_information_t
84 * represents any data about the data, which is visible to userspace
85 */
86typedef struct dasd_information_t {
87 unsigned int devno; /* S/390 devno */
88 unsigned int real_devno; /* for aliases */
89 unsigned int schid; /* S/390 subchannel identifier */
90 unsigned int cu_type : 16; /* from SenseID */
91 unsigned int cu_model : 8; /* from SenseID */
92 unsigned int dev_type : 16; /* from SenseID */
93 unsigned int dev_model : 8; /* from SenseID */
94 unsigned int open_count;
95 unsigned int req_queue_len;
96 unsigned int chanq_len; /* length of chanq */
97 char type[4]; /* from discipline.name, 'none' for unknown */
98 unsigned int status; /* current device level */
99 unsigned int label_block; /* where to find the VOLSER */
100 unsigned int FBA_layout; /* fixed block size (like AIXVOL) */
101 unsigned int characteristics_size;
102 unsigned int confdata_size;
103 char characteristics[64]; /* from read_device_characteristics */
104 char configuration_data[256]; /* from read_configuration_data */
105} dasd_information_t;
106
107/*
108 * Read Subsystem Data - Performance Statistics
109 */
110typedef struct dasd_rssd_perf_stats_t {
111 unsigned char invalid:1;
112 unsigned char format:3;
113 unsigned char data_format:4;
114 unsigned char unit_address;
115 unsigned short device_status;
116 unsigned int nr_read_normal;
117 unsigned int nr_read_normal_hits;
118 unsigned int nr_write_normal;
119 unsigned int nr_write_fast_normal_hits;
120 unsigned int nr_read_seq;
121 unsigned int nr_read_seq_hits;
122 unsigned int nr_write_seq;
123 unsigned int nr_write_fast_seq_hits;
124 unsigned int nr_read_cache;
125 unsigned int nr_read_cache_hits;
126 unsigned int nr_write_cache;
127 unsigned int nr_write_fast_cache_hits;
128 unsigned int nr_inhibit_cache;
129 unsigned int nr_bybass_cache;
130 unsigned int nr_seq_dasd_to_cache;
131 unsigned int nr_dasd_to_cache;
132 unsigned int nr_cache_to_dasd;
133 unsigned int nr_delayed_fast_write;
134 unsigned int nr_normal_fast_write;
135 unsigned int nr_seq_fast_write;
136 unsigned int nr_cache_miss;
137 unsigned char status2;
138 unsigned int nr_quick_write_promotes;
139 unsigned char reserved;
140 unsigned short ssid;
141 unsigned char reseved2[96];
142} __attribute__((packed)) dasd_rssd_perf_stats_t;
143
144/*
145 * struct profile_info_t
146 * holds the profinling information
147 */
148typedef struct dasd_profile_info_t {
149 unsigned int dasd_io_reqs; /* number of requests processed at all */
150 unsigned int dasd_io_sects; /* number of sectors processed at all */
151 unsigned int dasd_io_secs[32]; /* histogram of request's sizes */
152 unsigned int dasd_io_times[32]; /* histogram of requests's times */
153 unsigned int dasd_io_timps[32]; /* histogram of requests's times per sector */
154 unsigned int dasd_io_time1[32]; /* histogram of time from build to start */
155 unsigned int dasd_io_time2[32]; /* histogram of time from start to irq */
156 unsigned int dasd_io_time2ps[32]; /* histogram of time from start to irq */
157 unsigned int dasd_io_time3[32]; /* histogram of time from irq to end */
158 unsigned int dasd_io_nr_req[32]; /* histogram of # of requests in chanq */
159} dasd_profile_info_t;
160
161/*
162 * struct format_data_t
163 * represents all data necessary to format a dasd
164 */
165typedef struct format_data_t {
166 int start_unit; /* from track */
167 int stop_unit; /* to track */
168 int blksize; /* sectorsize */
169 int intensity;
170} format_data_t;
171
172/*
173 * values to be used for format_data_t.intensity
174 * 0/8: normal format
175 * 1/9: also write record zero
176 * 3/11: also write home address
177 * 4/12: invalidate track
178 */
179#define DASD_FMT_INT_FMT_R0 1 /* write record zero */
180#define DASD_FMT_INT_FMT_HA 2 /* write home address, also set FMT_R0 ! */
181#define DASD_FMT_INT_INVAL 4 /* invalidate tracks */
182#define DASD_FMT_INT_COMPAT 8 /* use OS/390 compatible disk layout */
183
184
185/*
186 * struct attrib_data_t
187 * represents the operation (cache) bits for the device.
188 * Used in DE to influence caching of the DASD.
189 */
190typedef struct attrib_data_t {
191 unsigned char operation:3; /* cache operation mode */
192 unsigned char reserved:5; /* cache operation mode */
193 __u16 nr_cyl; /* no of cyliners for read ahaed */
194 __u8 reserved2[29]; /* for future use */
195} __attribute__ ((packed)) attrib_data_t;
196
197/* definition of operation (cache) bits within attributes of DE */
198#define DASD_NORMAL_CACHE 0x0
199#define DASD_BYPASS_CACHE 0x1
200#define DASD_INHIBIT_LOAD 0x2
201#define DASD_SEQ_ACCESS 0x3
202#define DASD_SEQ_PRESTAGE 0x4
203#define DASD_REC_ACCESS 0x5
204
205
206/********************************************************************************
207 * SECTION: Definition of IOCTLs
208 *
209 * Here ist how the ioctl-nr should be used:
210 * 0 - 31 DASD driver itself
211 * 32 - 239 still open
212 * 240 - 255 reserved for EMC
213 *******************************************************************************/
214
215/* Disable the volume (for Linux) */
216#define BIODASDDISABLE _IO(DASD_IOCTL_LETTER,0)
217/* Enable the volume (for Linux) */
218#define BIODASDENABLE _IO(DASD_IOCTL_LETTER,1)
219/* Issue a reserve/release command, rsp. */
220#define BIODASDRSRV _IO(DASD_IOCTL_LETTER,2) /* reserve */
221#define BIODASDRLSE _IO(DASD_IOCTL_LETTER,3) /* release */
222#define BIODASDSLCK _IO(DASD_IOCTL_LETTER,4) /* steal lock */
223/* reset profiling information of a device */
224#define BIODASDPRRST _IO(DASD_IOCTL_LETTER,5)
225/* Quiesce IO on device */
226#define BIODASDQUIESCE _IO(DASD_IOCTL_LETTER,6)
227/* Resume IO on device */
228#define BIODASDRESUME _IO(DASD_IOCTL_LETTER,7)
229
230
231/* retrieve API version number */
232#define DASDAPIVER _IOR(DASD_IOCTL_LETTER,0,int)
233/* Get information on a dasd device */
234#define BIODASDINFO _IOR(DASD_IOCTL_LETTER,1,dasd_information_t)
235/* retrieve profiling information of a device */
236#define BIODASDPRRD _IOR(DASD_IOCTL_LETTER,2,dasd_profile_info_t)
237/* Get information on a dasd device (enhanced) */
238#define BIODASDINFO2 _IOR(DASD_IOCTL_LETTER,3,dasd_information2_t)
239/* Performance Statistics Read */
240#define BIODASDPSRD _IOR(DASD_IOCTL_LETTER,4,dasd_rssd_perf_stats_t)
241/* Get Attributes (cache operations) */
242#define BIODASDGATTR _IOR(DASD_IOCTL_LETTER,5,attrib_data_t)
243
244
245/* #define BIODASDFORMAT _IOW(IOCTL_LETTER,0,format_data_t) , deprecated */
246#define BIODASDFMT _IOW(DASD_IOCTL_LETTER,1,format_data_t)
247/* Set Attributes (cache operations) */
248#define BIODASDSATTR _IOW(DASD_IOCTL_LETTER,2,attrib_data_t)
249
250
251#endif /* DASD_H */
252
253/*
254 * Overrides for Emacs so that we follow Linus's tabbing style.
255 * Emacs will notice this stuff at the end of the file and automatically
256 * adjust the settings for this buffer only. This must remain at the end
257 * of the file.
258 * ---------------------------------------------------------------------------
259 * Local variables:
260 * c-indent-level: 4
261 * c-brace-imaginary-offset: 0
262 * c-brace-offset: -4
263 * c-argdecl-indent: 4
264 * c-label-offset: -4
265 * c-continued-statement-offset: 4
266 * c-continued-brace-offset: 0
267 * indent-tabs-mode: nil
268 * tab-width: 8
269 * End:
270 */
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