diff options
Diffstat (limited to 'include/linux/rio.h')
| -rw-r--r-- | include/linux/rio.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/rio.h b/include/linux/rio.h index 9b558856a8b6..ff681ebba585 100644 --- a/include/linux/rio.h +++ b/include/linux/rio.h @@ -66,6 +66,16 @@ #define RIO_PW_MSG_SIZE 64 +/* + * A component tag value (stored in the component tag CSR) is used as device's + * unique identifier assigned during enumeration. Besides being used for + * identifying switches (which do not have device ID register), it also is used + * by error management notification and therefore has to be assigned + * to endpoints as well. + */ +#define RIO_CTAG_RESRVD 0xfffe0000 /* Reserved */ +#define RIO_CTAG_UDEVID 0x0001ffff /* Unique device identifier */ + extern struct bus_type rio_bus_type; extern struct device rio_bus; extern struct list_head rio_devices; /* list of all devices */ |