Loading...
1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Functions for assembling fcx enabled I/O control blocks.
4 *
5 * Copyright IBM Corp. 2008
6 * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
7 */
8
9#ifndef _ASM_S390_FCX_H
10#define _ASM_S390_FCX_H
11
12#include <linux/types.h>
13
14#define TCW_FORMAT_DEFAULT 0
15#define TCW_TIDAW_FORMAT_DEFAULT 0
16#define TCW_FLAGS_INPUT_TIDA (1 << (23 - 5))
17#define TCW_FLAGS_TCCB_TIDA (1 << (23 - 6))
18#define TCW_FLAGS_OUTPUT_TIDA (1 << (23 - 7))
19#define TCW_FLAGS_TIDAW_FORMAT(x) ((x) & 3) << (23 - 9)
20#define TCW_FLAGS_GET_TIDAW_FORMAT(x) (((x) >> (23 - 9)) & 3)
21
22/**
23 * struct tcw - Transport Control Word (TCW)
24 * @format: TCW format
25 * @flags: TCW flags
26 * @tccbl: Transport-Command-Control-Block Length
27 * @r: Read Operations
28 * @w: Write Operations
29 * @output: Output-Data Address
30 * @input: Input-Data Address
31 * @tsb: Transport-Status-Block Address
32 * @tccb: Transport-Command-Control-Block Address
33 * @output_count: Output Count
34 * @input_count: Input Count
35 * @intrg: Interrogate TCW Address
36 */
37struct tcw {
38 u32 format:2;
39 u32 :6;
40 u32 flags:24;
41 u32 :8;
42 u32 tccbl:6;
43 u32 r:1;
44 u32 w:1;
45 u32 :16;
46 u64 output;
47 u64 input;
48 u64 tsb;
49 u64 tccb;
50 u32 output_count;
51 u32 input_count;
52 u32 :32;
53 u32 :32;
54 u32 :32;
55 u32 intrg;
56} __attribute__ ((packed, aligned(64)));
57
58#define TIDAW_FLAGS_LAST (1 << (7 - 0))
59#define TIDAW_FLAGS_SKIP (1 << (7 - 1))
60#define TIDAW_FLAGS_DATA_INT (1 << (7 - 2))
61#define TIDAW_FLAGS_TTIC (1 << (7 - 3))
62#define TIDAW_FLAGS_INSERT_CBC (1 << (7 - 4))
63
64/**
65 * struct tidaw - Transport-Indirect-Addressing Word (TIDAW)
66 * @flags: TIDAW flags. Can be an arithmetic OR of the following constants:
67 * %TIDAW_FLAGS_LAST, %TIDAW_FLAGS_SKIP, %TIDAW_FLAGS_DATA_INT,
68 * %TIDAW_FLAGS_TTIC, %TIDAW_FLAGS_INSERT_CBC
69 * @count: Count
70 * @addr: Address
71 */
72struct tidaw {
73 u32 flags:8;
74 u32 :24;
75 u32 count;
76 u64 addr;
77} __attribute__ ((packed, aligned(16)));
78
79/**
80 * struct tsa_iostat - I/O-Status Transport-Status Area (IO-Stat TSA)
81 * @dev_time: Device Time
82 * @def_time: Defer Time
83 * @queue_time: Queue Time
84 * @dev_busy_time: Device-Busy Time
85 * @dev_act_time: Device-Active-Only Time
86 * @sense: Sense Data (if present)
87 */
88struct tsa_iostat {
89 u32 dev_time;
90 u32 def_time;
91 u32 queue_time;
92 u32 dev_busy_time;
93 u32 dev_act_time;
94 u8 sense[32];
95} __attribute__ ((packed));
96
97/**
98 * struct tsa_ddpcs - Device-Detected-Program-Check Transport-Status Area (DDPC TSA)
99 * @rc: Reason Code
100 * @rcq: Reason Code Qualifier
101 * @sense: Sense Data (if present)
102 */
103struct tsa_ddpc {
104 u32 :24;
105 u32 rc:8;
106 u8 rcq[16];
107 u8 sense[32];
108} __attribute__ ((packed));
109
110#define TSA_INTRG_FLAGS_CU_STATE_VALID (1 << (7 - 0))
111#define TSA_INTRG_FLAGS_DEV_STATE_VALID (1 << (7 - 1))
112#define TSA_INTRG_FLAGS_OP_STATE_VALID (1 << (7 - 2))
113
114/**
115 * struct tsa_intrg - Interrogate Transport-Status Area (Intrg. TSA)
116 * @format: Format
117 * @flags: Flags. Can be an arithmetic OR of the following constants:
118 * %TSA_INTRG_FLAGS_CU_STATE_VALID, %TSA_INTRG_FLAGS_DEV_STATE_VALID,
119 * %TSA_INTRG_FLAGS_OP_STATE_VALID
120 * @cu_state: Controle-Unit State
121 * @dev_state: Device State
122 * @op_state: Operation State
123 * @sd_info: State-Dependent Information
124 * @dl_id: Device-Level Identifier
125 * @dd_data: Device-Dependent Data
126 */
127struct tsa_intrg {
128 u32 format:8;
129 u32 flags:8;
130 u32 cu_state:8;
131 u32 dev_state:8;
132 u32 op_state:8;
133 u32 :24;
134 u8 sd_info[12];
135 u32 dl_id;
136 u8 dd_data[28];
137} __attribute__ ((packed));
138
139#define TSB_FORMAT_NONE 0
140#define TSB_FORMAT_IOSTAT 1
141#define TSB_FORMAT_DDPC 2
142#define TSB_FORMAT_INTRG 3
143
144#define TSB_FLAGS_DCW_OFFSET_VALID (1 << (7 - 0))
145#define TSB_FLAGS_COUNT_VALID (1 << (7 - 1))
146#define TSB_FLAGS_CACHE_MISS (1 << (7 - 2))
147#define TSB_FLAGS_TIME_VALID (1 << (7 - 3))
148#define TSB_FLAGS_FORMAT(x) ((x) & 7)
149#define TSB_FORMAT(t) ((t)->flags & 7)
150
151/**
152 * struct tsb - Transport-Status Block (TSB)
153 * @length: Length
154 * @flags: Flags. Can be an arithmetic OR of the following constants:
155 * %TSB_FLAGS_DCW_OFFSET_VALID, %TSB_FLAGS_COUNT_VALID, %TSB_FLAGS_CACHE_MISS,
156 * %TSB_FLAGS_TIME_VALID
157 * @dcw_offset: DCW Offset
158 * @count: Count
159 * @tsa: Transport-Status-Area
160 */
161struct tsb {
162 u32 length:8;
163 u32 flags:8;
164 u32 dcw_offset:16;
165 u32 count;
166 u32 :32;
167 union {
168 struct tsa_iostat iostat;
169 struct tsa_ddpc ddpc;
170 struct tsa_intrg intrg;
171 } __attribute__ ((packed)) tsa;
172} __attribute__ ((packed, aligned(8)));
173
174#define DCW_INTRG_FORMAT_DEFAULT 0
175
176#define DCW_INTRG_RC_UNSPECIFIED 0
177#define DCW_INTRG_RC_TIMEOUT 1
178
179#define DCW_INTRG_RCQ_UNSPECIFIED 0
180#define DCW_INTRG_RCQ_PRIMARY 1
181#define DCW_INTRG_RCQ_SECONDARY 2
182
183#define DCW_INTRG_FLAGS_MPM (1 << (7 - 0))
184#define DCW_INTRG_FLAGS_PPR (1 << (7 - 1))
185#define DCW_INTRG_FLAGS_CRIT (1 << (7 - 2))
186
187/**
188 * struct dcw_intrg_data - Interrogate DCW data
189 * @format: Format. Should be %DCW_INTRG_FORMAT_DEFAULT
190 * @rc: Reason Code. Can be one of %DCW_INTRG_RC_UNSPECIFIED,
191 * %DCW_INTRG_RC_TIMEOUT
192 * @rcq: Reason Code Qualifier: Can be one of %DCW_INTRG_RCQ_UNSPECIFIED,
193 * %DCW_INTRG_RCQ_PRIMARY, %DCW_INTRG_RCQ_SECONDARY
194 * @lpm: Logical-Path Mask
195 * @pam: Path-Available Mask
196 * @pim: Path-Installed Mask
197 * @timeout: Timeout
198 * @flags: Flags. Can be an arithmetic OR of %DCW_INTRG_FLAGS_MPM,
199 * %DCW_INTRG_FLAGS_PPR, %DCW_INTRG_FLAGS_CRIT
200 * @time: Time
201 * @prog_id: Program Identifier
202 * @prog_data: Program-Dependent Data
203 */
204struct dcw_intrg_data {
205 u32 format:8;
206 u32 rc:8;
207 u32 rcq:8;
208 u32 lpm:8;
209 u32 pam:8;
210 u32 pim:8;
211 u32 timeout:16;
212 u32 flags:8;
213 u32 :24;
214 u32 :32;
215 u64 time;
216 u64 prog_id;
217 u8 prog_data[];
218} __attribute__ ((packed));
219
220#define DCW_FLAGS_CC (1 << (7 - 1))
221
222#define DCW_CMD_WRITE 0x01
223#define DCW_CMD_READ 0x02
224#define DCW_CMD_CONTROL 0x03
225#define DCW_CMD_SENSE 0x04
226#define DCW_CMD_SENSE_ID 0xe4
227#define DCW_CMD_INTRG 0x40
228
229/**
230 * struct dcw - Device-Command Word (DCW)
231 * @cmd: Command Code. Can be one of %DCW_CMD_WRITE, %DCW_CMD_READ,
232 * %DCW_CMD_CONTROL, %DCW_CMD_SENSE, %DCW_CMD_SENSE_ID, %DCW_CMD_INTRG
233 * @flags: Flags. Can be an arithmetic OR of %DCW_FLAGS_CC
234 * @cd_count: Control-Data Count
235 * @count: Count
236 * @cd: Control Data
237 */
238struct dcw {
239 u32 cmd:8;
240 u32 flags:8;
241 u32 :8;
242 u32 cd_count:8;
243 u32 count;
244 u8 cd[];
245} __attribute__ ((packed));
246
247#define TCCB_FORMAT_DEFAULT 0x7f
248#define TCCB_MAX_DCW 30
249#define TCCB_MAX_SIZE (sizeof(struct tccb_tcah) + \
250 TCCB_MAX_DCW * sizeof(struct dcw) + \
251 sizeof(struct tccb_tcat))
252#define TCCB_SAC_DEFAULT 0x1ffe
253#define TCCB_SAC_INTRG 0x1fff
254
255/**
256 * struct tccb_tcah - Transport-Command-Area Header (TCAH)
257 * @format: Format. Should be %TCCB_FORMAT_DEFAULT
258 * @tcal: Transport-Command-Area Length
259 * @sac: Service-Action Code. Can be one of %TCCB_SAC_DEFAULT, %TCCB_SAC_INTRG
260 * @prio: Priority
261 */
262struct tccb_tcah {
263 u32 format:8;
264 u32 :24;
265 u32 :24;
266 u32 tcal:8;
267 u32 sac:16;
268 u32 :8;
269 u32 prio:8;
270 u32 :32;
271} __attribute__ ((packed));
272
273/**
274 * struct tccb_tcat - Transport-Command-Area Trailer (TCAT)
275 * @count: Transport Count
276 */
277struct tccb_tcat {
278 u32 :32;
279 u32 count;
280} __attribute__ ((packed));
281
282/**
283 * struct tccb - (partial) Transport-Command-Control Block (TCCB)
284 * @tcah: TCAH
285 * @tca: Transport-Command Area
286 */
287struct tccb {
288 struct tccb_tcah tcah;
289 u8 tca[0];
290} __attribute__ ((packed, aligned(8)));
291
292struct tcw *tcw_get_intrg(struct tcw *tcw);
293void *tcw_get_data(struct tcw *tcw);
294struct tccb *tcw_get_tccb(struct tcw *tcw);
295struct tsb *tcw_get_tsb(struct tcw *tcw);
296
297void tcw_init(struct tcw *tcw, int r, int w);
298void tcw_finalize(struct tcw *tcw, int num_tidaws);
299
300void tcw_set_intrg(struct tcw *tcw, struct tcw *intrg_tcw);
301void tcw_set_data(struct tcw *tcw, void *data, int use_tidal);
302void tcw_set_tccb(struct tcw *tcw, struct tccb *tccb);
303void tcw_set_tsb(struct tcw *tcw, struct tsb *tsb);
304
305void tccb_init(struct tccb *tccb, size_t tccb_size, u32 sac);
306void tsb_init(struct tsb *tsb);
307struct dcw *tccb_add_dcw(struct tccb *tccb, size_t tccb_size, u8 cmd, u8 flags,
308 void *cd, u8 cd_count, u32 count);
309struct tidaw *tcw_add_tidaw(struct tcw *tcw, int num_tidaws, u8 flags,
310 void *addr, u32 count);
311
312#endif /* _ASM_S390_FCX_H */
1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Functions for assembling fcx enabled I/O control blocks.
4 *
5 * Copyright IBM Corp. 2008
6 * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
7 */
8
9#ifndef _ASM_S390_FCX_H
10#define _ASM_S390_FCX_H
11
12#include <linux/types.h>
13
14#define TCW_FORMAT_DEFAULT 0
15#define TCW_TIDAW_FORMAT_DEFAULT 0
16#define TCW_FLAGS_INPUT_TIDA (1 << (23 - 5))
17#define TCW_FLAGS_TCCB_TIDA (1 << (23 - 6))
18#define TCW_FLAGS_OUTPUT_TIDA (1 << (23 - 7))
19#define TCW_FLAGS_TIDAW_FORMAT(x) ((x) & 3) << (23 - 9)
20#define TCW_FLAGS_GET_TIDAW_FORMAT(x) (((x) >> (23 - 9)) & 3)
21
22/**
23 * struct tcw - Transport Control Word (TCW)
24 * @format: TCW format
25 * @flags: TCW flags
26 * @tccbl: Transport-Command-Control-Block Length
27 * @r: Read Operations
28 * @w: Write Operations
29 * @output: Output-Data Address
30 * @input: Input-Data Address
31 * @tsb: Transport-Status-Block Address
32 * @tccb: Transport-Command-Control-Block Address
33 * @output_count: Output Count
34 * @input_count: Input Count
35 * @intrg: Interrogate TCW Address
36 */
37struct tcw {
38 u32 format:2;
39 u32 :6;
40 u32 flags:24;
41 u32 :8;
42 u32 tccbl:6;
43 u32 r:1;
44 u32 w:1;
45 u32 :16;
46 u64 output;
47 u64 input;
48 u64 tsb;
49 u64 tccb;
50 u32 output_count;
51 u32 input_count;
52 u32 :32;
53 u32 :32;
54 u32 :32;
55 u32 intrg;
56} __attribute__ ((packed, aligned(64)));
57
58#define TIDAW_FLAGS_LAST (1 << (7 - 0))
59#define TIDAW_FLAGS_SKIP (1 << (7 - 1))
60#define TIDAW_FLAGS_DATA_INT (1 << (7 - 2))
61#define TIDAW_FLAGS_TTIC (1 << (7 - 3))
62#define TIDAW_FLAGS_INSERT_CBC (1 << (7 - 4))
63
64/**
65 * struct tidaw - Transport-Indirect-Addressing Word (TIDAW)
66 * @flags: TIDAW flags. Can be an arithmetic OR of the following constants:
67 * %TIDAW_FLAGS_LAST, %TIDAW_FLAGS_SKIP, %TIDAW_FLAGS_DATA_INT,
68 * %TIDAW_FLAGS_TTIC, %TIDAW_FLAGS_INSERT_CBC
69 * @count: Count
70 * @addr: Address
71 */
72struct tidaw {
73 u32 flags:8;
74 u32 :24;
75 u32 count;
76 u64 addr;
77} __attribute__ ((packed, aligned(16)));
78
79/**
80 * struct tsa_iostat - I/O-Status Transport-Status Area (IO-Stat TSA)
81 * @dev_time: Device Time
82 * @def_time: Defer Time
83 * @queue_time: Queue Time
84 * @dev_busy_time: Device-Busy Time
85 * @dev_act_time: Device-Active-Only Time
86 * @sense: Sense Data (if present)
87 */
88struct tsa_iostat {
89 u32 dev_time;
90 u32 def_time;
91 u32 queue_time;
92 u32 dev_busy_time;
93 u32 dev_act_time;
94 u8 sense[32];
95} __attribute__ ((packed));
96
97/**
98 * struct tsa_ddpcs - Device-Detected-Program-Check Transport-Status Area (DDPC TSA)
99 * @rc: Reason Code
100 * @rcq: Reason Code Qualifier
101 * @sense: Sense Data (if present)
102 */
103struct tsa_ddpc {
104 u32 :24;
105 u32 rc:8;
106 u8 rcq[16];
107 u8 sense[32];
108} __attribute__ ((packed));
109
110#define TSA_INTRG_FLAGS_CU_STATE_VALID (1 << (7 - 0))
111#define TSA_INTRG_FLAGS_DEV_STATE_VALID (1 << (7 - 1))
112#define TSA_INTRG_FLAGS_OP_STATE_VALID (1 << (7 - 2))
113
114/**
115 * struct tsa_intrg - Interrogate Transport-Status Area (Intrg. TSA)
116 * @format: Format
117 * @flags: Flags. Can be an arithmetic OR of the following constants:
118 * %TSA_INTRG_FLAGS_CU_STATE_VALID, %TSA_INTRG_FLAGS_DEV_STATE_VALID,
119 * %TSA_INTRG_FLAGS_OP_STATE_VALID
120 * @cu_state: Controle-Unit State
121 * @dev_state: Device State
122 * @op_state: Operation State
123 * @sd_info: State-Dependent Information
124 * @dl_id: Device-Level Identifier
125 * @dd_data: Device-Dependent Data
126 */
127struct tsa_intrg {
128 u32 format:8;
129 u32 flags:8;
130 u32 cu_state:8;
131 u32 dev_state:8;
132 u32 op_state:8;
133 u32 :24;
134 u8 sd_info[12];
135 u32 dl_id;
136 u8 dd_data[28];
137} __attribute__ ((packed));
138
139#define TSB_FORMAT_NONE 0
140#define TSB_FORMAT_IOSTAT 1
141#define TSB_FORMAT_DDPC 2
142#define TSB_FORMAT_INTRG 3
143
144#define TSB_FLAGS_DCW_OFFSET_VALID (1 << (7 - 0))
145#define TSB_FLAGS_COUNT_VALID (1 << (7 - 1))
146#define TSB_FLAGS_CACHE_MISS (1 << (7 - 2))
147#define TSB_FLAGS_TIME_VALID (1 << (7 - 3))
148#define TSB_FLAGS_FORMAT(x) ((x) & 7)
149#define TSB_FORMAT(t) ((t)->flags & 7)
150
151/**
152 * struct tsb - Transport-Status Block (TSB)
153 * @length: Length
154 * @flags: Flags. Can be an arithmetic OR of the following constants:
155 * %TSB_FLAGS_DCW_OFFSET_VALID, %TSB_FLAGS_COUNT_VALID, %TSB_FLAGS_CACHE_MISS,
156 * %TSB_FLAGS_TIME_VALID
157 * @dcw_offset: DCW Offset
158 * @count: Count
159 * @tsa: Transport-Status-Area
160 */
161struct tsb {
162 u32 length:8;
163 u32 flags:8;
164 u32 dcw_offset:16;
165 u32 count;
166 u32 :32;
167 union {
168 struct tsa_iostat iostat;
169 struct tsa_ddpc ddpc;
170 struct tsa_intrg intrg;
171 } __attribute__ ((packed)) tsa;
172} __attribute__ ((packed, aligned(8)));
173
174#define DCW_INTRG_FORMAT_DEFAULT 0
175
176#define DCW_INTRG_RC_UNSPECIFIED 0
177#define DCW_INTRG_RC_TIMEOUT 1
178
179#define DCW_INTRG_RCQ_UNSPECIFIED 0
180#define DCW_INTRG_RCQ_PRIMARY 1
181#define DCW_INTRG_RCQ_SECONDARY 2
182
183#define DCW_INTRG_FLAGS_MPM (1 << (7 - 0))
184#define DCW_INTRG_FLAGS_PPR (1 << (7 - 1))
185#define DCW_INTRG_FLAGS_CRIT (1 << (7 - 2))
186
187/**
188 * struct dcw_intrg_data - Interrogate DCW data
189 * @format: Format. Should be %DCW_INTRG_FORMAT_DEFAULT
190 * @rc: Reason Code. Can be one of %DCW_INTRG_RC_UNSPECIFIED,
191 * %DCW_INTRG_RC_TIMEOUT
192 * @rcq: Reason Code Qualifier: Can be one of %DCW_INTRG_RCQ_UNSPECIFIED,
193 * %DCW_INTRG_RCQ_PRIMARY, %DCW_INTRG_RCQ_SECONDARY
194 * @lpm: Logical-Path Mask
195 * @pam: Path-Available Mask
196 * @pim: Path-Installed Mask
197 * @timeout: Timeout
198 * @flags: Flags. Can be an arithmetic OR of %DCW_INTRG_FLAGS_MPM,
199 * %DCW_INTRG_FLAGS_PPR, %DCW_INTRG_FLAGS_CRIT
200 * @time: Time
201 * @prog_id: Program Identifier
202 * @prog_data: Program-Dependent Data
203 */
204struct dcw_intrg_data {
205 u32 format:8;
206 u32 rc:8;
207 u32 rcq:8;
208 u32 lpm:8;
209 u32 pam:8;
210 u32 pim:8;
211 u32 timeout:16;
212 u32 flags:8;
213 u32 :24;
214 u32 :32;
215 u64 time;
216 u64 prog_id;
217 u8 prog_data[0];
218} __attribute__ ((packed));
219
220#define DCW_FLAGS_CC (1 << (7 - 1))
221
222#define DCW_CMD_WRITE 0x01
223#define DCW_CMD_READ 0x02
224#define DCW_CMD_CONTROL 0x03
225#define DCW_CMD_SENSE 0x04
226#define DCW_CMD_SENSE_ID 0xe4
227#define DCW_CMD_INTRG 0x40
228
229/**
230 * struct dcw - Device-Command Word (DCW)
231 * @cmd: Command Code. Can be one of %DCW_CMD_WRITE, %DCW_CMD_READ,
232 * %DCW_CMD_CONTROL, %DCW_CMD_SENSE, %DCW_CMD_SENSE_ID, %DCW_CMD_INTRG
233 * @flags: Flags. Can be an arithmetic OR of %DCW_FLAGS_CC
234 * @cd_count: Control-Data Count
235 * @count: Count
236 * @cd: Control Data
237 */
238struct dcw {
239 u32 cmd:8;
240 u32 flags:8;
241 u32 :8;
242 u32 cd_count:8;
243 u32 count;
244 u8 cd[0];
245} __attribute__ ((packed));
246
247#define TCCB_FORMAT_DEFAULT 0x7f
248#define TCCB_MAX_DCW 30
249#define TCCB_MAX_SIZE (sizeof(struct tccb_tcah) + \
250 TCCB_MAX_DCW * sizeof(struct dcw) + \
251 sizeof(struct tccb_tcat))
252#define TCCB_SAC_DEFAULT 0x1ffe
253#define TCCB_SAC_INTRG 0x1fff
254
255/**
256 * struct tccb_tcah - Transport-Command-Area Header (TCAH)
257 * @format: Format. Should be %TCCB_FORMAT_DEFAULT
258 * @tcal: Transport-Command-Area Length
259 * @sac: Service-Action Code. Can be one of %TCCB_SAC_DEFAULT, %TCCB_SAC_INTRG
260 * @prio: Priority
261 */
262struct tccb_tcah {
263 u32 format:8;
264 u32 :24;
265 u32 :24;
266 u32 tcal:8;
267 u32 sac:16;
268 u32 :8;
269 u32 prio:8;
270 u32 :32;
271} __attribute__ ((packed));
272
273/**
274 * struct tccb_tcat - Transport-Command-Area Trailer (TCAT)
275 * @count: Transport Count
276 */
277struct tccb_tcat {
278 u32 :32;
279 u32 count;
280} __attribute__ ((packed));
281
282/**
283 * struct tccb - (partial) Transport-Command-Control Block (TCCB)
284 * @tcah: TCAH
285 * @tca: Transport-Command Area
286 */
287struct tccb {
288 struct tccb_tcah tcah;
289 u8 tca[0];
290} __attribute__ ((packed, aligned(8)));
291
292struct tcw *tcw_get_intrg(struct tcw *tcw);
293void *tcw_get_data(struct tcw *tcw);
294struct tccb *tcw_get_tccb(struct tcw *tcw);
295struct tsb *tcw_get_tsb(struct tcw *tcw);
296
297void tcw_init(struct tcw *tcw, int r, int w);
298void tcw_finalize(struct tcw *tcw, int num_tidaws);
299
300void tcw_set_intrg(struct tcw *tcw, struct tcw *intrg_tcw);
301void tcw_set_data(struct tcw *tcw, void *data, int use_tidal);
302void tcw_set_tccb(struct tcw *tcw, struct tccb *tccb);
303void tcw_set_tsb(struct tcw *tcw, struct tsb *tsb);
304
305void tccb_init(struct tccb *tccb, size_t tccb_size, u32 sac);
306void tsb_init(struct tsb *tsb);
307struct dcw *tccb_add_dcw(struct tccb *tccb, size_t tccb_size, u8 cmd, u8 flags,
308 void *cd, u8 cd_count, u32 count);
309struct tidaw *tcw_add_tidaw(struct tcw *tcw, int num_tidaws, u8 flags,
310 void *addr, u32 count);
311
312#endif /* _ASM_S390_FCX_H */