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-rw-r--r--include/asm-s390/fcx.h311
1 files changed, 0 insertions, 311 deletions
diff --git a/include/asm-s390/fcx.h b/include/asm-s390/fcx.h
deleted file mode 100644
index 8be1f3a58042..000000000000
--- a/include/asm-s390/fcx.h
+++ /dev/null
@@ -1,311 +0,0 @@
1/*
2 * Functions for assembling fcx enabled I/O control blocks.
3 *
4 * Copyright IBM Corp. 2008
5 * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
6 */
7
8#ifndef _ASM_S390_FCX_H
9#define _ASM_S390_FCX_H _ASM_S390_FCX_H
10
11#include <linux/types.h>
12
13#define TCW_FORMAT_DEFAULT 0
14#define TCW_TIDAW_FORMAT_DEFAULT 0
15#define TCW_FLAGS_INPUT_TIDA 1 << (23 - 5)
16#define TCW_FLAGS_TCCB_TIDA 1 << (23 - 6)
17#define TCW_FLAGS_OUTPUT_TIDA 1 << (23 - 7)
18#define TCW_FLAGS_TIDAW_FORMAT(x) ((x) & 3) << (23 - 9)
19#define TCW_FLAGS_GET_TIDAW_FORMAT(x) (((x) >> (23 - 9)) & 3)
20
21/**
22 * struct tcw - Transport Control Word (TCW)
23 * @format: TCW format
24 * @flags: TCW flags
25 * @tccbl: Transport-Command-Control-Block Length
26 * @r: Read Operations
27 * @w: Write Operations
28 * @output: Output-Data Address
29 * @input: Input-Data Address
30 * @tsb: Transport-Status-Block Address
31 * @tccb: Transport-Command-Control-Block Address
32 * @output_count: Output Count
33 * @input_count: Input Count
34 * @intrg: Interrogate TCW Address
35 */
36struct tcw {
37 u32 format:2;
38 u32 :6;
39 u32 flags:24;
40 u32 :8;
41 u32 tccbl:6;
42 u32 r:1;
43 u32 w:1;
44 u32 :16;
45 u64 output;
46 u64 input;
47 u64 tsb;
48 u64 tccb;
49 u32 output_count;
50 u32 input_count;
51 u32 :32;
52 u32 :32;
53 u32 :32;
54 u32 intrg;
55} __attribute__ ((packed, aligned(64)));
56
57#define TIDAW_FLAGS_LAST 1 << (7 - 0)
58#define TIDAW_FLAGS_SKIP 1 << (7 - 1)
59#define TIDAW_FLAGS_DATA_INT 1 << (7 - 2)
60#define TIDAW_FLAGS_TTIC 1 << (7 - 3)
61#define TIDAW_FLAGS_INSERT_CBC 1 << (7 - 4)
62
63/**
64 * struct tidaw - Transport-Indirect-Addressing Word (TIDAW)
65 * @flags: TIDAW flags. Can be an arithmetic OR of the following constants:
66 * %TIDAW_FLAGS_LAST, %TIDAW_FLAGS_SKIP, %TIDAW_FLAGS_DATA_INT,
67 * %TIDAW_FLAGS_TTIC, %TIDAW_FLAGS_INSERT_CBC
68 * @count: Count
69 * @addr: Address
70 */
71struct tidaw {
72 u32 flags:8;
73 u32 :24;
74 u32 count;
75 u64 addr;
76} __attribute__ ((packed, aligned(16)));
77
78/**
79 * struct tsa_iostat - I/O-Status Transport-Status Area (IO-Stat TSA)
80 * @dev_time: Device Time
81 * @def_time: Defer Time
82 * @queue_time: Queue Time
83 * @dev_busy_time: Device-Busy Time
84 * @dev_act_time: Device-Active-Only Time
85 * @sense: Sense Data (if present)
86 */
87struct tsa_iostat {
88 u32 dev_time;
89 u32 def_time;
90 u32 queue_time;
91 u32 dev_busy_time;
92 u32 dev_act_time;
93 u8 sense[32];
94} __attribute__ ((packed));
95
96/**
97 * struct tsa_ddpcs - Device-Detected-Program-Check Transport-Status Area (DDPC TSA)
98 * @rc: Reason Code
99 * @rcq: Reason Code Qualifier
100 * @sense: Sense Data (if present)
101 */
102struct tsa_ddpc {
103 u32 :24;
104 u32 rc:8;
105 u8 rcq[16];
106 u8 sense[32];
107} __attribute__ ((packed));
108
109#define TSA_INTRG_FLAGS_CU_STATE_VALID 1 << (7 - 0)
110#define TSA_INTRG_FLAGS_DEV_STATE_VALID 1 << (7 - 1)
111#define TSA_INTRG_FLAGS_OP_STATE_VALID 1 << (7 - 2)
112
113/**
114 * struct tsa_intrg - Interrogate Transport-Status Area (Intrg. TSA)
115 * @format: Format
116 * @flags: Flags. Can be an arithmetic OR of the following constants:
117 * %TSA_INTRG_FLAGS_CU_STATE_VALID, %TSA_INTRG_FLAGS_DEV_STATE_VALID,
118 * %TSA_INTRG_FLAGS_OP_STATE_VALID
119 * @cu_state: Controle-Unit State
120 * @dev_state: Device State
121 * @op_state: Operation State
122 * @sd_info: State-Dependent Information
123 * @dl_id: Device-Level Identifier
124 * @dd_data: Device-Dependent Data
125 */
126struct tsa_intrg {
127 u32 format:8;
128 u32 flags:8;
129 u32 cu_state:8;
130 u32 dev_state:8;
131 u32 op_state:8;
132 u32 :24;
133 u8 sd_info[12];
134 u32 dl_id;
135 u8 dd_data[28];
136} __attribute__ ((packed));
137
138#define TSB_FORMAT_NONE 0
139#define TSB_FORMAT_IOSTAT 1
140#define TSB_FORMAT_DDPC 2
141#define TSB_FORMAT_INTRG 3
142
143#define TSB_FLAGS_DCW_OFFSET_VALID 1 << (7 - 0)
144#define TSB_FLAGS_COUNT_VALID 1 << (7 - 1)
145#define TSB_FLAGS_CACHE_MISS 1 << (7 - 2)
146#define TSB_FLAGS_TIME_VALID 1 << (7 - 3)
147#define TSB_FLAGS_FORMAT(x) ((x) & 7)
148#define TSB_FORMAT(t) ((t)->flags & 7)
149
150/**
151 * struct tsb - Transport-Status Block (TSB)
152 * @length: Length
153 * @flags: Flags. Can be an arithmetic OR of the following constants:
154 * %TSB_FLAGS_DCW_OFFSET_VALID, %TSB_FLAGS_COUNT_VALID, %TSB_FLAGS_CACHE_MISS,
155 * %TSB_FLAGS_TIME_VALID
156 * @dcw_offset: DCW Offset
157 * @count: Count
158 * @tsa: Transport-Status-Area
159 */
160struct tsb {
161 u32 length:8;
162 u32 flags:8;
163 u32 dcw_offset:16;
164 u32 count;
165 u32 :32;
166 union {
167 struct tsa_iostat iostat;
168 struct tsa_ddpc ddpc;
169 struct tsa_intrg intrg;
170 } __attribute__ ((packed)) tsa;
171} __attribute__ ((packed, aligned(8)));
172
173#define DCW_INTRG_FORMAT_DEFAULT 0
174
175#define DCW_INTRG_RC_UNSPECIFIED 0
176#define DCW_INTRG_RC_TIMEOUT 1
177
178#define DCW_INTRG_RCQ_UNSPECIFIED 0
179#define DCW_INTRG_RCQ_PRIMARY 1
180#define DCW_INTRG_RCQ_SECONDARY 2
181
182#define DCW_INTRG_FLAGS_MPM 1 < (7 - 0)
183#define DCW_INTRG_FLAGS_PPR 1 < (7 - 1)
184#define DCW_INTRG_FLAGS_CRIT 1 < (7 - 2)
185
186/**
187 * struct dcw_intrg_data - Interrogate DCW data
188 * @format: Format. Should be %DCW_INTRG_FORMAT_DEFAULT
189 * @rc: Reason Code. Can be one of %DCW_INTRG_RC_UNSPECIFIED,
190 * %DCW_INTRG_RC_TIMEOUT
191 * @rcq: Reason Code Qualifier: Can be one of %DCW_INTRG_RCQ_UNSPECIFIED,
192 * %DCW_INTRG_RCQ_PRIMARY, %DCW_INTRG_RCQ_SECONDARY
193 * @lpm: Logical-Path Mask
194 * @pam: Path-Available Mask
195 * @pim: Path-Installed Mask
196 * @timeout: Timeout
197 * @flags: Flags. Can be an arithmetic OR of %DCW_INTRG_FLAGS_MPM,
198 * %DCW_INTRG_FLAGS_PPR, %DCW_INTRG_FLAGS_CRIT
199 * @time: Time
200 * @prog_id: Program Identifier
201 * @prog_data: Program-Dependent Data
202 */
203struct dcw_intrg_data {
204 u32 format:8;
205 u32 rc:8;
206 u32 rcq:8;
207 u32 lpm:8;
208 u32 pam:8;
209 u32 pim:8;
210 u32 timeout:16;
211 u32 flags:8;
212 u32 :24;
213 u32 :32;
214 u64 time;
215 u64 prog_id;
216 u8 prog_data[0];
217} __attribute__ ((packed));
218
219#define DCW_FLAGS_CC 1 << (7 - 1)
220
221#define DCW_CMD_WRITE 0x01
222#define DCW_CMD_READ 0x02
223#define DCW_CMD_CONTROL 0x03
224#define DCW_CMD_SENSE 0x04
225#define DCW_CMD_SENSE_ID 0xe4
226#define DCW_CMD_INTRG 0x40
227
228/**
229 * struct dcw - Device-Command Word (DCW)
230 * @cmd: Command Code. Can be one of %DCW_CMD_WRITE, %DCW_CMD_READ,
231 * %DCW_CMD_CONTROL, %DCW_CMD_SENSE, %DCW_CMD_SENSE_ID, %DCW_CMD_INTRG
232 * @flags: Flags. Can be an arithmetic OR of %DCW_FLAGS_CC
233 * @cd_count: Control-Data Count
234 * @count: Count
235 * @cd: Control Data
236 */
237struct dcw {
238 u32 cmd:8;
239 u32 flags:8;
240 u32 :8;
241 u32 cd_count:8;
242 u32 count;
243 u8 cd[0];
244} __attribute__ ((packed));
245
246#define TCCB_FORMAT_DEFAULT 0x7f
247#define TCCB_MAX_DCW 30
248#define TCCB_MAX_SIZE (sizeof(struct tccb_tcah) + \
249 TCCB_MAX_DCW * sizeof(struct dcw) + \
250 sizeof(struct tccb_tcat))
251#define TCCB_SAC_DEFAULT 0xf901
252#define TCCB_SAC_INTRG 0xf902
253
254/**
255 * struct tccb_tcah - Transport-Command-Area Header (TCAH)
256 * @format: Format. Should be %TCCB_FORMAT_DEFAULT
257 * @tcal: Transport-Command-Area Length
258 * @sac: Service-Action Code. Can be one of %TCCB_SAC_DEFAULT, %TCCB_SAC_INTRG
259 * @prio: Priority
260 */
261struct tccb_tcah {
262 u32 format:8;
263 u32 :24;
264 u32 :24;
265 u32 tcal:8;
266 u32 sac:16;
267 u32 :8;
268 u32 prio:8;
269 u32 :32;
270} __attribute__ ((packed));
271
272/**
273 * struct tccb_tcat - Transport-Command-Area Trailer (TCAT)
274 * @count: Transport Count
275 */
276struct tccb_tcat {
277 u32 :32;
278 u32 count;
279} __attribute__ ((packed));
280
281/**
282 * struct tccb - (partial) Transport-Command-Control Block (TCCB)
283 * @tcah: TCAH
284 * @tca: Transport-Command Area
285 */
286struct tccb {
287 struct tccb_tcah tcah;
288 u8 tca[0];
289} __attribute__ ((packed, aligned(8)));
290
291struct tcw *tcw_get_intrg(struct tcw *tcw);
292void *tcw_get_data(struct tcw *tcw);
293struct tccb *tcw_get_tccb(struct tcw *tcw);
294struct tsb *tcw_get_tsb(struct tcw *tcw);
295
296void tcw_init(struct tcw *tcw, int r, int w);
297void tcw_finalize(struct tcw *tcw, int num_tidaws);
298
299void tcw_set_intrg(struct tcw *tcw, struct tcw *intrg_tcw);
300void tcw_set_data(struct tcw *tcw, void *data, int use_tidal);
301void tcw_set_tccb(struct tcw *tcw, struct tccb *tccb);
302void tcw_set_tsb(struct tcw *tcw, struct tsb *tsb);
303
304void tccb_init(struct tccb *tccb, size_t tccb_size, u32 sac);
305void tsb_init(struct tsb *tsb);
306struct dcw *tccb_add_dcw(struct tccb *tccb, size_t tccb_size, u8 cmd, u8 flags,
307 void *cd, u8 cd_count, u32 count);
308struct tidaw *tcw_add_tidaw(struct tcw *tcw, int num_tidaws, u8 flags,
309 void *addr, u32 count);
310
311#endif /* _ASM_S390_FCX_H */
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