1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Copyright IBM Corp. 2007, 2010
4 * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
10 #include <linux/types.h>
11 #include <linux/device.h>
12 #include <linux/mutex.h>
13 #include <asm/chpid.h>
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
25 #define CHP_VARY_OFF 3
26 #define CHP_FCES_EVENT 4
34 static inline int chp_test_bit(u8
*bitmap
, int num
)
37 int mask
= 128 >> (num
& 7);
39 return (bitmap
[byte
] & mask
) ? 1 : 0;
46 struct mutex lock
; /* Serialize access to below members. */
48 struct channel_path_desc_fmt0 desc
;
49 struct channel_path_desc_fmt1 desc_fmt1
;
50 struct channel_path_desc_fmt3 desc_fmt3
;
51 /* Channel-measurement related stuff: */
54 struct cmg_chars cmg_chars
;
57 /* Return channel_path struct for given chpid. */
58 static inline struct channel_path
*chpid_to_chp(struct chp_id chpid
)
60 return css_by_id(chpid
.cssid
)->chps
[chpid
.id
];
63 int chp_get_status(struct chp_id chpid
);
64 u8
chp_get_sch_opm(struct subchannel
*sch
);
65 int chp_is_registered(struct chp_id chpid
);
66 struct channel_path_desc_fmt0
*chp_get_chp_desc(struct chp_id chpid
);
67 void chp_remove_cmg_attr(struct channel_path
*chp
);
68 int chp_add_cmg_attr(struct channel_path
*chp
);
69 int chp_update_desc(struct channel_path
*chp
);
70 int chp_new(struct chp_id chpid
);
71 void chp_cfg_schedule(struct chp_id chpid
, int configure
);
72 void chp_cfg_cancel_deconfigure(struct chp_id chpid
);
73 int chp_info_get_status(struct chp_id chpid
);
74 int chp_ssd_get_mask(struct chsc_ssd_info
*, struct chp_link
*);
75 #endif /* S390_CHP_H */