netdev - [net-next PATCH 2/2] octeontx2-pf: Add tracepoints for PF/VF mailbox

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Message-Id: <1599117498-30145-3-git-send-email-sundeep.lkml@gmail.com>
Date:   Thu,  3 Sep 2020 12:48:18 +0530
From:   sundeep.lkml@...il.com
To:     davem@...emloft.net, kuba@...nel.org, netdev@...r.kernel.org,
        sgoutham@...vell.com
Cc:     Subbaraya Sundeep <sbhatta@...vell.com>
Subject: [net-next PATCH 2/2] octeontx2-pf: Add tracepoints for PF/VF mailbox

From: Subbaraya Sundeep <sbhatta@...vell.com>

With tracepoints support present in the mailbox
code this patch adds tracepoints in PF and VF drivers
at places where mailbox messages are allocated,
sent and at message interrupts.

Signed-off-by: Subbaraya Sundeep <sbhatta@...vell.com>
Signed-off-by: Sunil Goutham <sgoutham@...vell.com>
---
 drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h | 2 ++
 drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c     | 6 ++++++
 drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c     | 2 ++
 3 files changed, 10 insertions(+)

diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
index ac47762..d6253f2 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
@@ -20,6 +20,7 @@
 #include <mbox.h>
 #include "otx2_reg.h"
 #include "otx2_txrx.h"
+#include <rvu_trace.h>
 
 /* PCI device IDs */
 #define PCI_DEVID_OCTEONTX2_RVU_PF              0xA063
@@ -523,6 +524,7 @@ static struct _req_type __maybe_unused					\
 		return NULL;						\
 	req->hdr.sig = OTX2_MBOX_REQ_SIG;				\
 	req->hdr.id = _id;						\
+	trace_otx2_msg_alloc(mbox->mbox.pdev, _id, sizeof(*req));	\
 	return req;							\
 }
 
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
index aac2845..265e4d1 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
@@ -22,6 +22,7 @@
 #include "otx2_txrx.h"
 #include "otx2_struct.h"
 #include "otx2_ptp.h"
+#include <rvu_trace.h>
 
 #define DRV_NAME	"octeontx2-nicpf"
 #define DRV_STRING	"Marvell OcteonTX2 NIC Physical Function Driver"
@@ -558,6 +559,8 @@ static irqreturn_t otx2_pfvf_mbox_intr_handler(int irq, void *pf_irq)
 
 	otx2_queue_work(mbox, pf->mbox_pfvf_wq, 0, vfs, intr, TYPE_PFVF);
 
+	trace_otx2_msg_interrupt(mbox->mbox.pdev, "VF(s) to PF", intr);
+
 	return IRQ_HANDLED;
 }
 
@@ -940,6 +943,9 @@ static irqreturn_t otx2_pfaf_mbox_intr_handler(int irq, void *pf_irq)
 	otx2_write64(pf, RVU_PF_INT, BIT_ULL(0));
 
 	mbox = &pf->mbox;
+
+	trace_otx2_msg_interrupt(mbox->mbox.pdev, "AF to PF", BIT_ULL(0));
+
 	otx2_queue_work(mbox, pf->mbox_wq, 0, 1, 1, TYPE_PFAF);
 
 	return IRQ_HANDLED;
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c
index 70e0d4c..32daa3e 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c
@@ -187,6 +187,8 @@ static irqreturn_t otx2vf_vfaf_mbox_intr_handler(int irq, void *vf_irq)
 	mdev = &mbox->dev[0];
 	otx2_sync_mbox_bbuf(mbox, 0);
 
+	trace_otx2_msg_interrupt(mbox->pdev, "PF to VF", BIT_ULL(0));
+
 	hdr = (struct mbox_hdr *)(mdev->mbase + mbox->rx_start);
 	if (hdr->num_msgs) {
 		vf->mbox.num_msgs = hdr->num_msgs;
-- 
2.7.4