ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/net/core/timestamping.c b/marvell/linux/net/core/timestamping.c
new file mode 100644
index 0000000..7911235
--- /dev/null
+++ b/marvell/linux/net/core/timestamping.c
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * PTP 1588 clock support - support for timestamping in PHY devices
+ *
+ * Copyright (C) 2010 OMICRON electronics GmbH
+ */
+#include <linux/errqueue.h>
+#include <linux/phy.h>
+#include <linux/ptp_classify.h>
+#include <linux/skbuff.h>
+#include <linux/export.h>
+
+static unsigned int classify(const struct sk_buff *skb)
+{
+ if (likely(skb->dev && skb->dev->phydev &&
+ skb->dev->phydev->drv))
+ return ptp_classify_raw(skb);
+ else
+ return PTP_CLASS_NONE;
+}
+
+void skb_clone_tx_timestamp(struct sk_buff *skb)
+{
+ struct phy_device *phydev;
+ struct sk_buff *clone;
+ unsigned int type;
+
+ if (!skb->sk)
+ return;
+
+ type = classify(skb);
+ if (type == PTP_CLASS_NONE)
+ return;
+
+ phydev = skb->dev->phydev;
+ if (likely(phydev->drv->txtstamp)) {
+ clone = skb_clone_sk(skb);
+ if (!clone)
+ return;
+ phydev->drv->txtstamp(phydev, clone, type);
+ }
+}
+EXPORT_SYMBOL_GPL(skb_clone_tx_timestamp);
+
+bool skb_defer_rx_timestamp(struct sk_buff *skb)
+{
+ struct phy_device *phydev;
+ unsigned int type;
+
+ if (!skb->dev || !skb->dev->phydev || !skb->dev->phydev->drv)
+ return false;
+
+ if (skb_headroom(skb) < ETH_HLEN)
+ return false;
+
+ __skb_push(skb, ETH_HLEN);
+
+ type = ptp_classify_raw(skb);
+
+ __skb_pull(skb, ETH_HLEN);
+
+ if (type == PTP_CLASS_NONE)
+ return false;
+
+ phydev = skb->dev->phydev;
+ if (likely(phydev->drv->rxtstamp))
+ return phydev->drv->rxtstamp(phydev, skb, type);
+
+ return false;
+}
+EXPORT_SYMBOL_GPL(skb_defer_rx_timestamp);