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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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77
78#define DASD_FEATURE_DEFAULT 0x00
79#define DASD_FEATURE_READONLY 0x01
80#define DASD_FEATURE_USEDIAG 0x02
81#define DASD_FEATURE_INITIAL_ONLINE 0x04
82#define DASD_FEATURE_ERPLOG 0x08
83#define DASD_FEATURE_FAILFAST 0x10
84#define DASD_FEATURE_FAILONSLCK 0x20
85#define DASD_FEATURE_USERAW 0x40
86
87#define DASD_PARTN_BITS 2
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92
93typedef struct dasd_information_t {
94 unsigned int devno;
95 unsigned int real_devno;
96 unsigned int schid;
97 unsigned int cu_type : 16;
98 unsigned int cu_model : 8;
99 unsigned int dev_type : 16;
100 unsigned int dev_model : 8;
101 unsigned int open_count;
102 unsigned int req_queue_len;
103 unsigned int chanq_len;
104 char type[4];
105 unsigned int status;
106 unsigned int label_block;
107 unsigned int FBA_layout;
108 unsigned int characteristics_size;
109 unsigned int confdata_size;
110 char characteristics[64];
111 char configuration_data[256];
112} dasd_information_t;
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116
117typedef struct dasd_rssd_perf_stats_t {
118 unsigned char invalid:1;
119 unsigned char format:3;
120 unsigned char data_format:4;
121 unsigned char unit_address;
122 unsigned short device_status;
123 unsigned int nr_read_normal;
124 unsigned int nr_read_normal_hits;
125 unsigned int nr_write_normal;
126 unsigned int nr_write_fast_normal_hits;
127 unsigned int nr_read_seq;
128 unsigned int nr_read_seq_hits;
129 unsigned int nr_write_seq;
130 unsigned int nr_write_fast_seq_hits;
131 unsigned int nr_read_cache;
132 unsigned int nr_read_cache_hits;
133 unsigned int nr_write_cache;
134 unsigned int nr_write_fast_cache_hits;
135 unsigned int nr_inhibit_cache;
136 unsigned int nr_bybass_cache;
137 unsigned int nr_seq_dasd_to_cache;
138 unsigned int nr_dasd_to_cache;
139 unsigned int nr_cache_to_dasd;
140 unsigned int nr_delayed_fast_write;
141 unsigned int nr_normal_fast_write;
142 unsigned int nr_seq_fast_write;
143 unsigned int nr_cache_miss;
144 unsigned char status2;
145 unsigned int nr_quick_write_promotes;
146 unsigned char reserved;
147 unsigned short ssid;
148 unsigned char reseved2[96];
149} __attribute__((packed)) dasd_rssd_perf_stats_t;
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154
155typedef struct dasd_profile_info_t {
156 unsigned int dasd_io_reqs;
157 unsigned int dasd_io_sects;
158 unsigned int dasd_io_secs[32];
159 unsigned int dasd_io_times[32];
160 unsigned int dasd_io_timps[32];
161 unsigned int dasd_io_time1[32];
162 unsigned int dasd_io_time2[32];
163 unsigned int dasd_io_time2ps[32];
164 unsigned int dasd_io_time3[32];
165 unsigned int dasd_io_nr_req[32];
166} dasd_profile_info_t;
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171
172typedef struct format_data_t {
173 unsigned int start_unit;
174 unsigned int stop_unit;
175 unsigned int blksize;
176 unsigned int intensity;
177} format_data_t;
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185
186#define DASD_FMT_INT_FMT_R0 1
187#define DASD_FMT_INT_FMT_HA 2
188#define DASD_FMT_INT_INVAL 4
189#define DASD_FMT_INT_COMPAT 8
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196
197typedef struct attrib_data_t {
198 unsigned char operation:3;
199 unsigned char reserved:5;
200 __u16 nr_cyl;
201 __u8 reserved2[29];
202} __attribute__ ((packed)) attrib_data_t;
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204
205#define DASD_NORMAL_CACHE 0x0
206#define DASD_BYPASS_CACHE 0x1
207#define DASD_INHIBIT_LOAD 0x2
208#define DASD_SEQ_ACCESS 0x3
209#define DASD_SEQ_PRESTAGE 0x4
210#define DASD_REC_ACCESS 0x5
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214
215typedef struct dasd_symmio_parms {
216 unsigned char reserved[8];
217 unsigned long long psf_data;
218 unsigned long long rssd_result;
219 int psf_data_len;
220 int rssd_result_len;
221} __attribute__ ((packed)) dasd_symmio_parms_t;
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225
226struct dasd_snid_data {
227 struct {
228 __u8 group:2;
229 __u8 reserve:2;
230 __u8 mode:1;
231 __u8 res:3;
232 } __attribute__ ((packed)) path_state;
233 __u8 pgid[11];
234} __attribute__ ((packed));
235
236struct dasd_snid_ioctl_data {
237 struct dasd_snid_data data;
238 __u8 path_mask;
239} __attribute__ ((packed));
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251
252#define BIODASDDISABLE _IO(DASD_IOCTL_LETTER,0)
253
254#define BIODASDENABLE _IO(DASD_IOCTL_LETTER,1)
255
256#define BIODASDRSRV _IO(DASD_IOCTL_LETTER,2)
257#define BIODASDRLSE _IO(DASD_IOCTL_LETTER,3)
258#define BIODASDSLCK _IO(DASD_IOCTL_LETTER,4)
259
260#define BIODASDPRRST _IO(DASD_IOCTL_LETTER,5)
261
262#define BIODASDQUIESCE _IO(DASD_IOCTL_LETTER,6)
263
264#define BIODASDRESUME _IO(DASD_IOCTL_LETTER,7)
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267
268#define DASDAPIVER _IOR(DASD_IOCTL_LETTER,0,int)
269
270#define BIODASDINFO _IOR(DASD_IOCTL_LETTER,1,dasd_information_t)
271
272#define BIODASDPRRD _IOR(DASD_IOCTL_LETTER,2,dasd_profile_info_t)
273
274#define BIODASDINFO2 _IOR(DASD_IOCTL_LETTER,3,dasd_information2_t)
275
276#define BIODASDPSRD _IOR(DASD_IOCTL_LETTER,4,dasd_rssd_perf_stats_t)
277
278#define BIODASDGATTR _IOR(DASD_IOCTL_LETTER,5,attrib_data_t)
279
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281
282#define BIODASDFMT _IOW(DASD_IOCTL_LETTER,1,format_data_t)
283
284#define BIODASDSATTR _IOW(DASD_IOCTL_LETTER,2,attrib_data_t)
285
286
287#define BIODASDSNID _IOWR(DASD_IOCTL_LETTER, 1, struct dasd_snid_ioctl_data)
288
289#define BIODASDSYMMIO _IOWR(DASD_IOCTL_LETTER, 240, dasd_symmio_parms_t)
290
291#endif
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