1 /* QLogic qede NIC Driver
2 * Copyright (c) 2015-2017 QLogic Corporation
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and /or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 */
32 #ifndef _QEDE_PTP_H_
33 #define _QEDE_PTP_H_
34
35 #include <linux/ptp_clock_kernel.h>
36 #include <linux/net_tstamp.h>
37 #include <linux/timecounter.h>
38 #include "qede.h"
39
40 void qede_ptp_rx_ts(struct qede_dev *edev, struct sk_buff *skb);
41 void qede_ptp_tx_ts(struct qede_dev *edev, struct sk_buff *skb);
42 int qede_ptp_hw_ts(struct qede_dev *edev, struct ifreq *req);
43 void qede_ptp_disable(struct qede_dev *edev);
44 int qede_ptp_enable(struct qede_dev *edev, bool init_tc);
45 int qede_ptp_get_ts_info(struct qede_dev *edev, struct ethtool_ts_info *ts);
46
47 static inline void qede_ptp_record_rx_ts(struct qede_dev *edev,
48 union eth_rx_cqe *cqe,
49 struct sk_buff *skb)
50 {
51 /* Check if this packet was timestamped */
52 if (unlikely(le16_to_cpu(cqe->fast_path_regular.pars_flags.flags) &
53 (1 << PARSING_AND_ERR_FLAGS_TIMESTAMPRECORDED_SHIFT))) {
54 if (likely(le16_to_cpu(cqe->fast_path_regular.pars_flags.flags)
55 & (1 << PARSING_AND_ERR_FLAGS_TIMESYNCPKT_SHIFT))) {
56 qede_ptp_rx_ts(edev, skb);
57 } else {
58 DP_INFO(edev,
59 "Timestamp recorded for non PTP packets\n");
60 }
61 }
62 }
63 #endif /* _QEDE_PTP_H_ */