diff mbox series

[v2,11/11] zfcp: trace channel log even for FCP command responses

Message ID e37597b5c4ae123aaa85fd86c23a9f71e994e4a9.1572018132.git.bblock@linux.ibm.com (mailing list archive)
State Mainlined
Commit 100843f176109af94600e500da0428e21030ca7f
Headers show
Series zfcp: retrieve local RDP data, fix and cleanup | expand

Commit Message

Benjamin Block Oct. 25, 2019, 4:12 p.m. UTC 
From: Steffen Maier <maier@linux.ibm.com>

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.

Signed-off-by: Steffen Maier <maier@linux.ibm.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
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+
Signed-off-by: Benjamin Block <bblock@linux.ibm.com>
---
 drivers/s390/scsi/zfcp_dbf.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c
index dccdb41bed8c..1234294700c4 100644
--- a/drivers/s390/scsi/zfcp_dbf.c
+++ b/drivers/s390/scsi/zfcp_dbf.c
@@ -95,11 +95,9 @@  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 (q_head->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);