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scsi: zfcp: trace channel log even for FCP command responses
authorSteffen Maier <maier@linux.ibm.com>
Fri, 25 Oct 2019 16:12:53 +0000 (18:12 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 17 Dec 2019 19:35:22 +0000 (20:35 +0100)
commit33b0e54db4e50854263bc2f13b35f07920200e2f
treeb917aeddea9e8c10ade338b583ad969a0c1f339d
parent42d72c9d28964fbbaeaa15baf2e7ce418d1c1a0a
scsi: zfcp: trace channel log even for FCP command responses

[ 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/e37597b5c4ae123aaa85fd86c23a9f71e994e4a9.1572018132.git.bblock@linux.ibm.com
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