diff options
Diffstat (limited to 'drivers/s390/scsi/zfcp_dbf.c')
| -rw-r--r-- | drivers/s390/scsi/zfcp_dbf.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c index 96d1462e0bf..a9a816e4aa5 100644 --- a/drivers/s390/scsi/zfcp_dbf.c +++ b/drivers/s390/scsi/zfcp_dbf.c @@ -9,6 +9,7 @@ #define KMSG_COMPONENT "zfcp" #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt +#include <linux/module.h> #include <linux/ctype.h> #include <linux/slab.h> #include <asm/debug.h> @@ -163,6 +164,42 @@ void zfcp_dbf_hba_bit_err(char *tag, struct zfcp_fsf_req *req) spin_unlock_irqrestore(&dbf->hba_lock, flags); } +/** + * zfcp_dbf_hba_def_err - trace event for deferred error messages + * @adapter: pointer to struct zfcp_adapter + * @req_id: request id which caused the deferred error message + * @scount: number of sbals incl. the signaling sbal + * @pl: array of all involved sbals + */ +void zfcp_dbf_hba_def_err(struct zfcp_adapter *adapter, u64 req_id, u16 scount, + void **pl) +{ + struct zfcp_dbf *dbf = adapter->dbf; + struct zfcp_dbf_pay *payload = &dbf->pay_buf; + unsigned long flags; + u16 length; + + if (!pl) + return; + + spin_lock_irqsave(&dbf->pay_lock, flags); + memset(payload, 0, sizeof(*payload)); + + memcpy(payload->area, "def_err", 7); + payload->fsf_req_id = req_id; + payload->counter = 0; + length = min((u16)sizeof(struct qdio_buffer), + (u16)ZFCP_DBF_PAY_MAX_REC); + + while ((char *)pl[payload->counter] && payload->counter < scount) { + memcpy(payload->data, (char *)pl[payload->counter], length); + debug_event(dbf->pay, 1, payload, zfcp_dbf_plen(length)); + payload->counter++; + } + + spin_unlock_irqrestore(&dbf->pay_lock, flags); +} + static void zfcp_dbf_set_common(struct zfcp_dbf_rec *rec, struct zfcp_adapter *adapter, struct zfcp_port *port, |