1 files changed, 74 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ptp.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ptp.h
new file mode 100644
index 000000000..cccfae84b
--- /dev/null
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ptp.h
@@ -0,0 +1,74 @@
+/*
+ * This file is part of the Chelsio T4 Ethernet driver for Linux.
+ *
+ * Copyright (c) 2003-2017 Chelsio Communications, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef __CXGB4_PTP_H__
+#define __CXGB4_PTP_H__
+
+/* Maximum parts-per-billion adjustment that is acceptable */
+#define MAX_PTP_FREQ_ADJ		1000000
+#define PTP_CLOCK_MAX_ADJTIME		10000000 /* 10 ms */
+
+#define PTP_MIN_LENGTH			63
+#define PTP_IN_TRANSMIT_PACKET_MAXNUM	240
+#define PTP_EVENT_PORT			319
+
+enum ptp_rx_filter_mode {
+	PTP_TS_NONE = 0,
+	PTP_TS_L2,
+	PTP_TS_L4,
+	PTP_TS_L2_L4
+};
+
+struct port_info;
+
+static inline bool cxgb4_xmit_with_hwtstamp(struct sk_buff *skb)
+{
+	return skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP;
+}
+
+static inline void cxgb4_xmit_hwtstamp_pending(struct sk_buff *skb)
+{
+	skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
+}
+
+void cxgb4_ptp_init(struct adapter *adap);
+void cxgb4_ptp_stop(struct adapter *adap);
+bool cxgb4_ptp_is_ptp_tx(struct sk_buff *skb);
+bool cxgb4_ptp_is_ptp_rx(struct sk_buff *skb);
+int cxgb4_ptprx_timestamping(struct port_info *pi, u8 port, u16 mode);
+int cxgb4_ptp_redirect_rx_packet(struct adapter *adap, struct port_info *pi);
+int cxgb4_ptp_txtype(struct adapter *adap, u8 port_id);
+void cxgb4_ptp_read_hwstamp(struct adapter *adap, struct port_info *pi);
+bool is_ptp_enabled(struct sk_buff *skb, struct net_device *dev);
+#endif /* __CXGB4_PTP_H__ */