From: Steffen Maier maier@linux.ibm.com
[ Upstream commit 100843f176109af94600e500da0428e21030ca7f ]
While v2.6.26 commit b75db73159cc ("[SCSI] zfcp: Add qtcb dump to hba debug trace") is right that we don't want to flood the (payload) trace ring buffer, we don't trace successful FCP command responses by default. So we can include the channel log for problem determination with failed responses of any FSF request type.
Fixes: b75db73159cc ("[SCSI] zfcp: Add qtcb dump to hba debug trace") Fixes: a54ca0f62f95 ("[SCSI] zfcp: Redesign of the debug tracing for HBA records.") Cc: stable@vger.kernel.org #2.6.38+ Link: https://lore.kernel.org/r/e37597b5c4ae123aaa85fd86c23a9f71e994e4a9.157201813... Reviewed-by: Benjamin Block bblock@linux.ibm.com Signed-off-by: Steffen Maier maier@linux.ibm.com Signed-off-by: Benjamin Block bblock@linux.ibm.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/s390/scsi/zfcp_dbf.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c index b6caad0fee24c..c53ea0ac5f460 100644 --- a/drivers/s390/scsi/zfcp_dbf.c +++ b/drivers/s390/scsi/zfcp_dbf.c @@ -93,11 +93,9 @@ void zfcp_dbf_hba_fsf_res(char *tag, int level, struct zfcp_fsf_req *req) memcpy(rec->u.res.fsf_status_qual, &q_head->fsf_status_qual, FSF_STATUS_QUALIFIER_SIZE);
- if (req->fsf_command != FSF_QTCB_FCP_CMND) { - rec->pl_len = q_head->log_length; - zfcp_dbf_pl_write(dbf, (char *)q_pref + q_head->log_start, - rec->pl_len, "fsf_res", req->req_id); - } + rec->pl_len = q_head->log_length; + zfcp_dbf_pl_write(dbf, (char *)q_pref + q_head->log_start, + rec->pl_len, "fsf_res", req->req_id);
debug_event(dbf->hba, level, rec, sizeof(*rec)); spin_unlock_irqrestore(&dbf->hba_lock, flags);