diff options
Diffstat (limited to 'drivers/s390/crypto/ap_bus.h')
| -rw-r--r-- | drivers/s390/crypto/ap_bus.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/s390/crypto/ap_bus.h b/drivers/s390/crypto/ap_bus.h index 5246cd8c16a6..3eed1b36c876 100644 --- a/drivers/s390/crypto/ap_bus.h +++ b/drivers/s390/crypto/ap_bus.h @@ -20,6 +20,7 @@ #define AP_DEVICES 256 /* Number of AP devices. */ #define AP_DOMAINS 256 /* Number of AP domains. */ +#define AP_IOCTLS 256 /* Number of ioctls. */ #define AP_RESET_TIMEOUT (HZ*0.7) /* 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. */ @@ -257,6 +258,14 @@ void ap_queue_resume(struct ap_device *ap_dev); struct ap_card *ap_card_create(int id, int queue_depth, int raw_device_type, int comp_device_type, unsigned int functions); +struct ap_perms { + unsigned long ioctlm[BITS_TO_LONGS(AP_IOCTLS)]; + unsigned long apm[BITS_TO_LONGS(AP_DEVICES)]; + unsigned long aqm[BITS_TO_LONGS(AP_DOMAINS)]; +}; +extern struct ap_perms ap_perms; +extern struct mutex ap_perms_mutex; + /* * check APQN for owned/reserved by ap bus and default driver(s). * Checks if this APQN is or will be in use by the ap bus @@ -280,4 +289,20 @@ int ap_owned_by_def_drv(int card, int queue); int ap_apqn_in_matrix_owned_by_def_drv(unsigned long *apm, unsigned long *aqm); +/* + * ap_parse_mask_str() - helper function to parse a bitmap string + * and clear/set the bits in the bitmap accordingly. The string may be + * given as absolute value, a hex string like 0x1F2E3D4C5B6A" simple + * overwriting the current content of the bitmap. Or as relative string + * like "+1-16,-32,-0x40,+128" where only single bits or ranges of + * bits are cleared or set. Distinction is done based on the very + * first character which may be '+' or '-' for the relative string + * and othewise assume to be an absolute value string. If parsing fails + * a negative errno value is returned. All arguments and bitmaps are + * big endian order. + */ +int ap_parse_mask_str(const char *str, + unsigned long *bitmap, int bits, + struct mutex *lock); + #endif /* _AP_BUS_H_ */ |