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- /*
- * Copyright IBM Corp. 2007, 2010
- * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
- */
- #ifndef S390_CHP_H
- #define S390_CHP_H S390_CHP_H
- #include <linux/types.h>
- #include <linux/device.h>
- #include <linux/mutex.h>
- #include <asm/chpid.h>
- #include "chsc.h"
- #include "css.h"
- #define CHP_STATUS_STANDBY 0
- #define CHP_STATUS_CONFIGURED 1
- #define CHP_STATUS_RESERVED 2
- #define CHP_STATUS_NOT_RECOGNIZED 3
- #define CHP_ONLINE 0
- #define CHP_OFFLINE 1
- #define CHP_VARY_ON 2
- #define CHP_VARY_OFF 3
- struct chp_link {
- struct chp_id chpid;
- u32 fla_mask;
- u16 fla;
- };
- static inline int chp_test_bit(u8 *bitmap, int num)
- {
- int byte = num >> 3;
- int mask = 128 >> (num & 7);
- return (bitmap[byte] & mask) ? 1 : 0;
- }
- struct channel_path {
- struct device dev;
- struct chp_id chpid;
- struct mutex lock; /* Serialize access to below members. */
- int state;
- struct channel_path_desc desc;
- struct channel_path_desc_fmt1 desc_fmt1;
- /* Channel-measurement related stuff: */
- int cmg;
- int shared;
- struct cmg_chars cmg_chars;
- };
- /* Return channel_path struct for given chpid. */
- static inline struct channel_path *chpid_to_chp(struct chp_id chpid)
- {
- return channel_subsystems[chpid.cssid]->chps[chpid.id];
- }
- int chp_get_status(struct chp_id chpid);
- u8 chp_get_sch_opm(struct subchannel *sch);
- int chp_is_registered(struct chp_id chpid);
- struct channel_path_desc *chp_get_chp_desc(struct chp_id chpid);
- void chp_remove_cmg_attr(struct channel_path *chp);
- int chp_add_cmg_attr(struct channel_path *chp);
- int chp_update_desc(struct channel_path *chp);
- int chp_new(struct chp_id chpid);
- void chp_cfg_schedule(struct chp_id chpid, int configure);
- void chp_cfg_cancel_deconfigure(struct chp_id chpid);
- int chp_info_get_status(struct chp_id chpid);
- int chp_ssd_get_mask(struct chsc_ssd_info *, struct chp_link *);
- #endif /* S390_CHP_H */
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