This source file includes following definitions.
- chp_test_bit
- chpid_to_chp
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6
7 #ifndef S390_CHP_H
8 #define S390_CHP_H
9
10 #include <linux/types.h>
11 #include <linux/device.h>
12 #include <linux/mutex.h>
13 #include <asm/chpid.h>
14 #include "chsc.h"
15 #include "css.h"
16
17 #define CHP_STATUS_STANDBY 0
18 #define CHP_STATUS_CONFIGURED 1
19 #define CHP_STATUS_RESERVED 2
20 #define CHP_STATUS_NOT_RECOGNIZED 3
21
22 #define CHP_ONLINE 0
23 #define CHP_OFFLINE 1
24 #define CHP_VARY_ON 2
25 #define CHP_VARY_OFF 3
26
27 struct chp_link {
28 struct chp_id chpid;
29 u32 fla_mask;
30 u16 fla;
31 };
32
33 static inline int chp_test_bit(u8 *bitmap, int num)
34 {
35 int byte = num >> 3;
36 int mask = 128 >> (num & 7);
37
38 return (bitmap[byte] & mask) ? 1 : 0;
39 }
40
41
42 struct channel_path {
43 struct device dev;
44 struct chp_id chpid;
45 struct mutex lock;
46 int state;
47 struct channel_path_desc_fmt0 desc;
48 struct channel_path_desc_fmt1 desc_fmt1;
49 struct channel_path_desc_fmt3 desc_fmt3;
50
51 int cmg;
52 int shared;
53 struct cmg_chars cmg_chars;
54 };
55
56
57 static inline struct channel_path *chpid_to_chp(struct chp_id chpid)
58 {
59 return css_by_id(chpid.cssid)->chps[chpid.id];
60 }
61
62 int chp_get_status(struct chp_id chpid);
63 u8 chp_get_sch_opm(struct subchannel *sch);
64 int chp_is_registered(struct chp_id chpid);
65 struct channel_path_desc_fmt0 *chp_get_chp_desc(struct chp_id chpid);
66 void chp_remove_cmg_attr(struct channel_path *chp);
67 int chp_add_cmg_attr(struct channel_path *chp);
68 int chp_update_desc(struct channel_path *chp);
69 int chp_new(struct chp_id chpid);
70 void chp_cfg_schedule(struct chp_id chpid, int configure);
71 void chp_cfg_cancel_deconfigure(struct chp_id chpid);
72 int chp_info_get_status(struct chp_id chpid);
73 int chp_ssd_get_mask(struct chsc_ssd_info *, struct chp_link *);
74 #endif