diff options
Diffstat (limited to 'drivers/s390/scsi/zfcp_diag.c')
| -rw-r--r-- | drivers/s390/scsi/zfcp_diag.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/s390/scsi/zfcp_diag.c b/drivers/s390/scsi/zfcp_diag.c index 9c5a0f3431ca..5ef7b3288c6f 100644 --- a/drivers/s390/scsi/zfcp_diag.c +++ b/drivers/s390/scsi/zfcp_diag.c @@ -176,6 +176,36 @@ int zfcp_diag_update_port_data_buffer(struct zfcp_adapter *const adapter) return rc; } +/** + * zfcp_diag_update_config_data_buffer() - Implementation of + * &typedef zfcp_diag_update_buffer_func + * to collect and update Config Data. + * @adapter: Adapter to collect Config Data from. + * + * This call is SYNCHRONOUS ! It blocks till the respective command has + * finished completely, or has failed in some way. + * + * Return: + * * 0 - Successfully retrieved new Diagnostics and Updated the buffer; + * this also includes cases where data was retrieved, but + * incomplete; you'll have to check the flag ``incomplete`` + * of &struct zfcp_diag_header. + * * see zfcp_fsf_exchange_config_data_sync() for possible error-codes ( + * excluding -EAGAIN) + */ +int zfcp_diag_update_config_data_buffer(struct zfcp_adapter *const adapter) +{ + int rc; + + rc = zfcp_fsf_exchange_config_data_sync(adapter->qdio, NULL); + if (rc == -EAGAIN) + rc = 0; /* signaling incomplete via struct zfcp_diag_header */ + + /* buffer-data was updated in zfcp_fsf_exchange_config_data_handler() */ + + return rc; +} + static int __zfcp_diag_update_buffer(struct zfcp_adapter *const adapter, struct zfcp_diag_header *const hdr, zfcp_diag_update_buffer_func buffer_update, |