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15#ifndef DASD_H
16#define DASD_H
17#include <linux/types.h>
18#include <linux/ioctl.h>
19
20#define DASD_IOCTL_LETTER 'D'
21
22#define DASD_API_VERSION 6
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28
29typedef struct dasd_information2_t {
30 unsigned int devno;
31 unsigned int real_devno;
32 unsigned int schid;
33 unsigned int cu_type : 16;
34 unsigned int cu_model : 8;
35 unsigned int dev_type : 16;
36 unsigned int dev_model : 8;
37 unsigned int open_count;
38 unsigned int req_queue_len;
39 unsigned int chanq_len;
40 char type[4];
41 unsigned int status;
42 unsigned int label_block;
43 unsigned int FBA_layout;
44 unsigned int characteristics_size;
45 unsigned int confdata_size;
46 char characteristics[64];
47 char configuration_data[256];
48 unsigned int format;
49 unsigned int features;
50 unsigned int reserved0;
51 unsigned int reserved1;
52 unsigned int reserved2;
53 unsigned int reserved3;
54 unsigned int reserved4;
55 unsigned int reserved5;
56 unsigned int reserved6;
57 unsigned int reserved7;
58} dasd_information2_t;
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65
66#define DASD_FORMAT_NONE 0
67#define DASD_FORMAT_LDL 1
68#define DASD_FORMAT_CDL 2
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80
81#define DASD_FEATURE_DEFAULT 0x00
82#define DASD_FEATURE_READONLY 0x01
83#define DASD_FEATURE_USEDIAG 0x02
84#define DASD_FEATURE_INITIAL_ONLINE 0x04
85#define DASD_FEATURE_ERPLOG 0x08
86#define DASD_FEATURE_FAILFAST 0x10
87#define DASD_FEATURE_FAILONSLCK 0x20
88#define DASD_FEATURE_USERAW 0x40
89#define DASD_FEATURE_DISCARD 0x80
90
91#define DASD_PARTN_BITS 2
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96
97typedef struct dasd_information_t {
98 unsigned int devno;
99 unsigned int real_devno;
100 unsigned int schid;
101 unsigned int cu_type : 16;
102 unsigned int cu_model : 8;
103 unsigned int dev_type : 16;
104 unsigned int dev_model : 8;
105 unsigned int open_count;
106 unsigned int req_queue_len;
107 unsigned int chanq_len;
108 char type[4];
109 unsigned int status;
110 unsigned int label_block;
111 unsigned int FBA_layout;
112 unsigned int characteristics_size;
113 unsigned int confdata_size;
114 char characteristics[64];
115 char configuration_data[256];
116} dasd_information_t;
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118
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120
121typedef struct dasd_rssd_perf_stats_t {
122 unsigned char invalid:1;
123 unsigned char format:3;
124 unsigned char data_format:4;
125 unsigned char unit_address;
126 unsigned short device_status;
127 unsigned int nr_read_normal;
128 unsigned int nr_read_normal_hits;
129 unsigned int nr_write_normal;
130 unsigned int nr_write_fast_normal_hits;
131 unsigned int nr_read_seq;
132 unsigned int nr_read_seq_hits;
133 unsigned int nr_write_seq;
134 unsigned int nr_write_fast_seq_hits;
135 unsigned int nr_read_cache;
136 unsigned int nr_read_cache_hits;
137 unsigned int nr_write_cache;
138 unsigned int nr_write_fast_cache_hits;
139 unsigned int nr_inhibit_cache;
140 unsigned int nr_bybass_cache;
141 unsigned int nr_seq_dasd_to_cache;
142 unsigned int nr_dasd_to_cache;
143 unsigned int nr_cache_to_dasd;
144 unsigned int nr_delayed_fast_write;
145 unsigned int nr_normal_fast_write;
146 unsigned int nr_seq_fast_write;
147 unsigned int nr_cache_miss;
148 unsigned char status2;
149 unsigned int nr_quick_write_promotes;
150 unsigned char reserved;
151 unsigned short ssid;
152 unsigned char reseved2[96];
153} __attribute__((packed)) dasd_rssd_perf_stats_t;
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158
159typedef struct dasd_profile_info_t {
160 unsigned int dasd_io_reqs;
161 unsigned int dasd_io_sects;
162 unsigned int dasd_io_secs[32];
163 unsigned int dasd_io_times[32];
164 unsigned int dasd_io_timps[32];
165 unsigned int dasd_io_time1[32];
166 unsigned int dasd_io_time2[32];
167 unsigned int dasd_io_time2ps[32];
168 unsigned int dasd_io_time3[32];
169 unsigned int dasd_io_nr_req[32];
170} dasd_profile_info_t;
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176typedef struct format_data_t {
177 unsigned int start_unit;
178 unsigned int stop_unit;
179 unsigned int blksize;
180 unsigned int intensity;
181} format_data_t;
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189
190#define DASD_FMT_INT_FMT_R0 1
191#define DASD_FMT_INT_FMT_HA 2
192#define DASD_FMT_INT_INVAL 4
193#define DASD_FMT_INT_COMPAT 8
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199
200typedef struct format_check_t {
201
202 struct format_data_t expect;
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204
205 unsigned int result;
206 unsigned int unit;
207 unsigned int rec;
208 unsigned int num_records;
209 unsigned int blksize;
210 unsigned int key_length;
211} format_check_t;
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214
215#define DASD_FMT_ERR_TOO_FEW_RECORDS 1
216
217#define DASD_FMT_ERR_TOO_MANY_RECORDS 2
218
219#define DASD_FMT_ERR_BLKSIZE 3
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222#define DASD_FMT_ERR_RECORD_ID 4
223
224#define DASD_FMT_ERR_KEY_LENGTH 5
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230
231typedef struct attrib_data_t {
232 unsigned char operation:3;
233 unsigned char reserved:5;
234 __u16 nr_cyl;
235 __u8 reserved2[29];
236} __attribute__ ((packed)) attrib_data_t;
237
238
239#define DASD_NORMAL_CACHE 0x0
240#define DASD_BYPASS_CACHE 0x1
241#define DASD_INHIBIT_LOAD 0x2
242#define DASD_SEQ_ACCESS 0x3
243#define DASD_SEQ_PRESTAGE 0x4
244#define DASD_REC_ACCESS 0x5
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248
249typedef struct dasd_symmio_parms {
250 unsigned char reserved[8];
251 unsigned long long psf_data;
252 unsigned long long rssd_result;
253 int psf_data_len;
254 int rssd_result_len;
255} __attribute__ ((packed)) dasd_symmio_parms_t;
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259
260struct dasd_snid_data {
261 struct {
262 __u8 group:2;
263 __u8 reserve:2;
264 __u8 mode:1;
265 __u8 res:3;
266 } __attribute__ ((packed)) path_state;
267 __u8 pgid[11];
268} __attribute__ ((packed));
269
270struct dasd_snid_ioctl_data {
271 struct dasd_snid_data data;
272 __u8 path_mask;
273} __attribute__ ((packed));
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285
286#define BIODASDDISABLE _IO(DASD_IOCTL_LETTER,0)
287
288#define BIODASDENABLE _IO(DASD_IOCTL_LETTER,1)
289
290#define BIODASDRSRV _IO(DASD_IOCTL_LETTER,2)
291#define BIODASDRLSE _IO(DASD_IOCTL_LETTER,3)
292#define BIODASDSLCK _IO(DASD_IOCTL_LETTER,4)
293
294#define BIODASDPRRST _IO(DASD_IOCTL_LETTER,5)
295
296#define BIODASDQUIESCE _IO(DASD_IOCTL_LETTER,6)
297
298#define BIODASDRESUME _IO(DASD_IOCTL_LETTER,7)
299
300#define BIODASDABORTIO _IO(DASD_IOCTL_LETTER, 240)
301
302#define BIODASDALLOWIO _IO(DASD_IOCTL_LETTER, 241)
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304
305
306#define DASDAPIVER _IOR(DASD_IOCTL_LETTER,0,int)
307
308#define BIODASDINFO _IOR(DASD_IOCTL_LETTER,1,dasd_information_t)
309
310#define BIODASDPRRD _IOR(DASD_IOCTL_LETTER,2,dasd_profile_info_t)
311
312#define BIODASDINFO2 _IOR(DASD_IOCTL_LETTER,3,dasd_information2_t)
313
314#define BIODASDPSRD _IOR(DASD_IOCTL_LETTER,4,dasd_rssd_perf_stats_t)
315
316#define BIODASDGATTR _IOR(DASD_IOCTL_LETTER,5,attrib_data_t)
317
318
319
320#define BIODASDFMT _IOW(DASD_IOCTL_LETTER,1,format_data_t)
321
322#define BIODASDSATTR _IOW(DASD_IOCTL_LETTER,2,attrib_data_t)
323
324
325#define BIODASDSNID _IOWR(DASD_IOCTL_LETTER, 1, struct dasd_snid_ioctl_data)
326
327#define BIODASDCHECKFMT _IOWR(DASD_IOCTL_LETTER, 2, format_check_t)
328
329#define BIODASDSYMMIO _IOWR(DASD_IOCTL_LETTER, 240, dasd_symmio_parms_t)
330
331#endif
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333