diff options
Diffstat (limited to 'drivers/s390/cio/css.h')
| -rw-r--r-- | drivers/s390/cio/css.h | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h index ede0b905bc6f..a65a27dc520c 100644 --- a/drivers/s390/cio/css.h +++ b/drivers/s390/cio/css.h @@ -35,10 +35,19 @@ #define SNID_STATE3_SINGLE_PATH 0 /* + * Miscellaneous constants + */ + +#define CSS_NUM_CUB_PAGES 2 +#define CSS_CUES_PER_PAGE 128 +#define CSS_NUM_ECUB_PAGES 4 +#define CSS_ECUES_PER_PAGE 64 + +/* * Conditions used to specify which subchannels need evaluation */ enum css_eval_cond { - CSS_EVAL_UNREG, /* unregistered subchannels */ + CSS_EVAL_NO_PATH, /* Subchannels with no operational paths */ CSS_EVAL_NOT_ONLINE /* sch without an online-device */ }; @@ -94,7 +103,7 @@ struct css_driver { int (*settle)(void); }; -#define to_cssdriver(n) container_of(n, struct css_driver, drv) +#define to_cssdriver(n) container_of_const(n, struct css_driver, drv) extern int css_driver_register(struct css_driver *); extern void css_driver_unregister(struct css_driver *); @@ -122,8 +131,8 @@ struct channel_subsystem { struct mutex mutex; /* channel measurement related */ int cm_enabled; - void *cub_addr1; - void *cub_addr2; + void *cub[CSS_NUM_CUB_PAGES]; + void *ecub[CSS_NUM_ECUB_PAGES]; /* for orphaned ccw devices */ struct subchannel *pseudo_subchannel; }; |