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-rw-r--r--drivers/s390/cio/chp.h53
1 files changed, 53 insertions, 0 deletions
diff --git a/drivers/s390/cio/chp.h b/drivers/s390/cio/chp.h
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+++ b/drivers/s390/cio/chp.h
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1/*
2 * drivers/s390/cio/chp.h
3 *
4 * Copyright IBM Corp. 2007
5 * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
6 */
7
8#ifndef S390_CHP_H
9#define S390_CHP_H S390_CHP_H
10
11#include <linux/types.h>
12#include <linux/device.h>
13#include <asm/chpid.h>
14#include "chsc.h"
15
16#define CHP_STATUS_STANDBY 0
17#define CHP_STATUS_CONFIGURED 1
18#define CHP_STATUS_RESERVED 2
19#define CHP_STATUS_NOT_RECOGNIZED 3
20
21static inline int chp_test_bit(u8 *bitmap, int num)
22{
23 int byte = num >> 3;
24 int mask = 128 >> (num & 7);
25
26 return (bitmap[byte] & mask) ? 1 : 0;
27}
28
29
30struct channel_path {
31 struct chp_id chpid;
32 int state;
33 struct channel_path_desc desc;
34 /* Channel-measurement related stuff: */
35 int cmg;
36 int shared;
37 void *cmg_chars;
38 struct device dev;
39};
40
41int chp_get_status(struct chp_id chpid);
42u8 chp_get_sch_opm(struct subchannel *sch);
43int chp_is_registered(struct chp_id chpid);
44void *chp_get_chp_desc(struct chp_id chpid);
45void chp_process_crw(int id, int available);
46void chp_remove_cmg_attr(struct channel_path *chp);
47int chp_add_cmg_attr(struct channel_path *chp);
48int chp_new(struct chp_id chpid);
49void chp_cfg_schedule(struct chp_id chpid, int configure);
50void chp_cfg_cancel_deconfigure(struct chp_id chpid);
51int chp_info_get_status(struct chp_id chpid);
52
53#endif /* S390_CHP_H */