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From: Bean Huo <huobean@gmail.com>
To: alim.akhtar@samsung.com, avri.altman@wdc.com,
	asutoshd@codeaurora.org, jejb@linux.ibm.com,
	martin.petersen@oracle.com, stanley.chu@mediatek.com,
	beanhuo@micron.com, bvanassche@acm.org, tomas.winkler@intel.com,
	cang@codeaurora.org, rostedt@goodmis.org
Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 6/6] scsi: ufs: Make UPIU trace easier differentiate among CDB, OSF, and TM
Date: Mon, 14 Dec 2020 17:15:02 +0100	[thread overview]
Message-ID: <20201214161502.13440-7-huobean@gmail.com> (raw)
In-Reply-To: <20201214161502.13440-1-huobean@gmail.com>

From: Bean Huo <beanhuo@micron.com>

Transaction Specific Fields (TSF) in the UPIU package could be CDB
(SCSI/UFS Command Descriptor Block), OSF (Opcode Specific Field), and
TM I/O parameter (Task Management Input/Output Parameter). But, currently,
we take all of these as CDB  in the UPIU trace. Thus makes user confuse
among CDB, OSF, and TM message. So fix it with this patch.

Signed-off-by: Bean Huo <beanhuo@micron.com>
---
 drivers/scsi/ufs/ufs.h     |  7 +++++++
 drivers/scsi/ufs/ufshcd.c  |  9 +++++----
 include/trace/events/ufs.h | 18 +++++++++++++++---
 3 files changed, 27 insertions(+), 7 deletions(-)

diff --git a/drivers/scsi/ufs/ufs.h b/drivers/scsi/ufs/ufs.h
index e04f6b5178c1..87076aa27e29 100644
--- a/drivers/scsi/ufs/ufs.h
+++ b/drivers/scsi/ufs/ufs.h
@@ -559,6 +559,13 @@ enum ufs_trace_str_t {
 	UFS_TM_SEND, UFS_TM_COMP, UFS_TM_ERR
 };
 
+/*
+ * Transaction Specific Fields (TSF) type in the UPIU package, this enum is
+ * used in include/trace/events/ufs.h for UFS command trace.
+ */
+enum ufs_trace_tsf_t {
+	UFS_TSF_CDB, UFS_TSF_OSF, UFS_TSF_TM_INPUT, UFS_TSF_TM_OUTPUT
+};
 
 /**
  * ufs_is_valid_unit_desc_lun - checks if the given LUN has a unit descriptor
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 742f5d11f8e5..66794cb8d5c9 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -315,7 +315,8 @@ static void ufshcd_add_cmd_upiu_trace(struct ufs_hba *hba, unsigned int tag,
 	if (!trace_ufshcd_upiu_enabled())
 		return;
 
-	trace_ufshcd_upiu(dev_name(hba->dev), str_t, &rq->header, &rq->sc.cdb);
+	trace_ufshcd_upiu(dev_name(hba->dev), str_t, &rq->header, &rq->sc.cdb,
+			  UFS_TSF_CDB);
 }
 
 static void ufshcd_add_query_upiu_trace(struct ufs_hba *hba, unsigned int tag,
@@ -332,7 +333,7 @@ static void ufshcd_add_query_upiu_trace(struct ufs_hba *hba, unsigned int tag,
 		rq_rsp = (struct utp_upiu_req *)hba->lrb[tag].ucd_rsp_ptr;
 
 	trace_ufshcd_upiu(dev_name(hba->dev), str_t, &rq_rsp->header,
-			  &rq_rsp->qr);
+			  &rq_rsp->qr, UFS_TSF_OSF);
 }
 
 static void ufshcd_add_tm_upiu_trace(struct ufs_hba *hba, unsigned int tag,
@@ -346,10 +347,10 @@ static void ufshcd_add_tm_upiu_trace(struct ufs_hba *hba, unsigned int tag,
 
 	if (str_t == UFS_TM_SEND)
 		trace_ufshcd_upiu(dev_name(hba->dev), str_t, &descp->req_header,
-				  &descp->input_param1);
+				  &descp->input_param1, UFS_TSF_TM_INPUT);
 	else
 		trace_ufshcd_upiu(dev_name(hba->dev), str_t, &descp->rsp_header,
-				  &descp->output_param1);
+				  &descp->output_param1, UFS_TSF_TM_OUTPUT);
 }
 
 static void ufshcd_add_uic_command_trace(struct ufs_hba *hba,
diff --git a/include/trace/events/ufs.h b/include/trace/events/ufs.h
index 1f2e2db4eb17..c8cff8fc0c21 100644
--- a/include/trace/events/ufs.h
+++ b/include/trace/events/ufs.h
@@ -48,6 +48,12 @@
 	EM(UFS_TM_COMP,		"tm_complete")			\
 	EMe(UFS_TM_ERR,		"tm_complete_err")
 
+#define UFS_CMD_TRACE_TSF_TYPES					\
+	EM(UFS_TSF_CDB,		"CDB")		                \
+	EM(UFS_TSF_OSF,		"OSF")		                \
+	EM(UFS_TSF_TM_INPUT,	"TM_INPUT")                     \
+	EMe(UFS_TSF_TM_OUTPUT,	"TM_OUTPUT")
+
 /* Enums require being exported to userspace, for user tool parsing */
 #undef EM
 #undef EMe
@@ -58,6 +64,7 @@ UFS_LINK_STATES;
 UFS_PWR_MODES;
 UFSCHD_CLK_GATING_STATES;
 UFS_CMD_TRACE_STRINGS
+UFS_CMD_TRACE_TSF_TYPES
 
 /*
  * Now redefine the EM() and EMe() macros to map the enums to the strings
@@ -70,6 +77,8 @@ UFS_CMD_TRACE_STRINGS
 
 #define show_ufs_cmd_trace_str(str_t)	\
 				__print_symbolic(str_t, UFS_CMD_TRACE_STRINGS)
+#define show_ufs_cmd_trace_tsf(tsf)	\
+				__print_symbolic(tsf, UFS_CMD_TRACE_TSF_TYPES)
 
 TRACE_EVENT(ufshcd_clk_gating,
 
@@ -311,15 +320,16 @@ TRACE_EVENT(ufshcd_uic_command,
 
 TRACE_EVENT(ufshcd_upiu,
 	TP_PROTO(const char *dev_name, enum ufs_trace_str_t str_t, void *hdr,
-		 void *tsf),
+		 void *tsf, enum ufs_trace_tsf_t tsf_t),
 
-	TP_ARGS(dev_name, str_t, hdr, tsf),
+	TP_ARGS(dev_name, str_t, hdr, tsf, tsf_t),
 
 	TP_STRUCT__entry(
 		__string(dev_name, dev_name)
 		__field(enum ufs_trace_str_t, str_t)
 		__array(unsigned char, hdr, 12)
 		__array(unsigned char, tsf, 16)
+		__field(enum ufs_trace_tsf_t, tsf_t)
 	),
 
 	TP_fast_assign(
@@ -327,12 +337,14 @@ TRACE_EVENT(ufshcd_upiu,
 		__entry->str_t = str_t;
 		memcpy(__entry->hdr, hdr, sizeof(__entry->hdr));
 		memcpy(__entry->tsf, tsf, sizeof(__entry->tsf));
+		__entry->tsf_t = tsf_t;
 	),
 
 	TP_printk(
-		"%s: %s: HDR:%s, CDB:%s",
+		"%s: %s: HDR:%s, %s:%s",
 		show_ufs_cmd_trace_str(__entry->str_t), __get_str(dev_name),
 		__print_hex(__entry->hdr, sizeof(__entry->hdr)),
+		show_ufs_cmd_trace_tsf(__entry->tsf_t),
 		__print_hex(__entry->tsf, sizeof(__entry->tsf))
 	)
 );
-- 
2.17.1


  parent reply	other threads:[~2020-12-14 16:17 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-14 16:14 [PATCH v2 0/6] Several changes for the UPIU trace Bean Huo
2020-12-14 16:14 ` [PATCH v2 1/6] scsi: ufs: Remove stringize operator '#' restriction Bean Huo
2020-12-14 16:46   ` Joe Perches
2020-12-14 18:51     ` Bean Huo
2020-12-14 16:14 ` [PATCH v2 2/6] scsi: ufs: Use __print_symbolic() for UFS trace string print Bean Huo
2020-12-14 16:14 ` [PATCH v2 3/6] scsi: ufs: Don't call trace_ufshcd_upiu() in case trace poit is disabled Bean Huo
2020-12-14 16:15 ` [PATCH v2 4/6] scsi: ufs: Distinguish between query REQ and query RSP in query trace Bean Huo
2020-12-14 16:15 ` [PATCH v2 5/6] scsi: ufs: Distinguish between TM request UPIU and response UPIU in TM UPIU trace Bean Huo
2020-12-14 16:15 ` Bean Huo [this message]
2020-12-14 16:23 ` [PATCH v2 0/6] Several changes for the " Steven Rostedt

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