diff options
Diffstat (limited to 'drivers/s390/cio/chp.h')
| -rw-r--r-- | drivers/s390/cio/chp.h | 33 |
1 files changed, 26 insertions, 7 deletions
diff --git a/drivers/s390/cio/chp.h b/drivers/s390/cio/chp.h index 65286563c59..4efd5b867cc 100644 --- a/drivers/s390/cio/chp.h +++ b/drivers/s390/cio/chp.h @@ -1,7 +1,5 @@ /* - * drivers/s390/cio/chp.h - * - * Copyright IBM Corp. 2007 + * Copyright IBM Corp. 2007, 2010 * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com> */ @@ -10,14 +8,27 @@ #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; @@ -28,26 +39,34 @@ static inline int chp_test_bit(u8 *bitmap, int num) 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; void *cmg_chars; - struct device dev; }; +/* 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); -void *chp_get_chp_desc(struct chp_id chpid); -void chp_process_crw(int id, int available); +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 */ |