diff options
Diffstat (limited to 'drivers/s390/scsi/zfcp_dbf.c')
| -rw-r--r-- | drivers/s390/scsi/zfcp_dbf.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c index 4534a7ce77b8..b6caad0fee24 100644 --- a/drivers/s390/scsi/zfcp_dbf.c +++ b/drivers/s390/scsi/zfcp_dbf.c @@ -625,6 +625,46 @@ void zfcp_dbf_scsi(char *tag, int level, struct scsi_cmnd *sc, spin_unlock_irqrestore(&dbf->scsi_lock, flags); } +/** + * zfcp_dbf_scsi_eh() - Trace event for special cases of scsi_eh callbacks. + * @tag: Identifier for event. + * @adapter: Pointer to zfcp adapter as context for this event. + * @scsi_id: SCSI ID/target to indicate scope of task management function (TMF). + * @ret: Return value of calling function. + * + * This SCSI trace variant does not depend on any of: + * scsi_cmnd, zfcp_fsf_req, scsi_device. + */ +void zfcp_dbf_scsi_eh(char *tag, struct zfcp_adapter *adapter, + unsigned int scsi_id, int ret) +{ + struct zfcp_dbf *dbf = adapter->dbf; + struct zfcp_dbf_scsi *rec = &dbf->scsi_buf; + unsigned long flags; + static int const level = 1; + + if (unlikely(!debug_level_enabled(adapter->dbf->scsi, level))) + return; + + spin_lock_irqsave(&dbf->scsi_lock, flags); + memset(rec, 0, sizeof(*rec)); + + memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN); + rec->id = ZFCP_DBF_SCSI_CMND; + rec->scsi_result = ret; /* re-use field, int is 4 bytes and fits */ + rec->scsi_retries = ~0; + rec->scsi_allowed = ~0; + rec->fcp_rsp_info = ~0; + rec->scsi_id = scsi_id; + rec->scsi_lun = (u32)ZFCP_DBF_INVALID_LUN; + rec->scsi_lun_64_hi = (u32)(ZFCP_DBF_INVALID_LUN >> 32); + rec->host_scribble = ~0; + memset(rec->scsi_opcode, 0xff, ZFCP_DBF_SCSI_OPCODE); + + debug_event(dbf->scsi, level, rec, sizeof(*rec)); + spin_unlock_irqrestore(&dbf->scsi_lock, flags); +} + static debug_info_t *zfcp_dbf_reg(const char *name, int size, int rec_size) { struct debug_info *d; |