diff options
Diffstat (limited to 'drivers/s390/crypto/ap_bus.h')
| -rw-r--r-- | drivers/s390/crypto/ap_bus.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/s390/crypto/ap_bus.h b/drivers/s390/crypto/ap_bus.h index 008559ea742b..87c2d6442875 100644 --- a/drivers/s390/crypto/ap_bus.h +++ b/drivers/s390/crypto/ap_bus.h @@ -33,6 +33,7 @@ #define AP_DEVICES 64 /* Number of AP devices. */ #define AP_DOMAINS 16 /* Number of AP domains. */ #define AP_MAX_RESET 90 /* Maximum number of resets. */ +#define AP_RESET_TIMEOUT (HZ/2) /* Time in ticks for reset timeouts. */ #define AP_CONFIG_TIME 30 /* Time in seconds between AP bus rescans. */ #define AP_POLL_TIME 1 /* Time in ticks between receive polls. */ @@ -83,6 +84,13 @@ struct ap_queue_status { #define AP_DEVICE_TYPE_CEX2A 6 #define AP_DEVICE_TYPE_CEX2C 7 +/** + * AP reset flag states + */ +#define AP_RESET_IGNORE 0 /* request timeout will be ignored */ +#define AP_RESET_ARMED 1 /* request timeout timer is active */ +#define AP_RESET_DO 2 /* AP reset required */ + struct ap_device; struct ap_message; @@ -95,6 +103,7 @@ struct ap_driver { /* receive is called from tasklet context */ void (*receive)(struct ap_device *, struct ap_message *, struct ap_message *); + int request_timeout; /* request timeout in jiffies */ }; #define to_ap_drv(x) container_of((x), struct ap_driver, driver) @@ -112,6 +121,8 @@ struct ap_device { int queue_depth; /* AP queue depth.*/ int device_type; /* AP device type. */ int unregistered; /* marks AP device as unregistered */ + struct timer_list timeout; /* Timer for request timeouts. */ + int reset; /* Reset required after req. timeout. */ int queue_count; /* # messages currently on AP queue. */ |