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_start(struct qede_dev *edev, bool init_tc); 44 void qede_ptp_stop(struct qede_dev *edev); 45 void qede_ptp_remove(struct qede_dev *edev); 46 int qede_ptp_register_phc(struct qede_dev *edev); 47 int qede_ptp_get_ts_info(struct qede_dev *edev, struct ethtool_ts_info *ts); 48 49 static inline void qede_ptp_record_rx_ts(struct qede_dev *edev, 50 union eth_rx_cqe *cqe, 51 struct sk_buff *skb) 52 { 53 /* Check if this packet was timestamped */ 54 if (unlikely(le16_to_cpu(cqe->fast_path_regular.pars_flags.flags) & 55 (1 << PARSING_AND_ERR_FLAGS_TIMESTAMPRECORDED_SHIFT))) { 56 if (likely(le16_to_cpu(cqe->fast_path_regular.pars_flags.flags) 57 & (1 << PARSING_AND_ERR_FLAGS_TIMESYNCPKT_SHIFT))) { 58 qede_ptp_rx_ts(edev, skb); 59 } else { 60 DP_INFO(edev, 61 "Timestamp recorded for non PTP packets\n"); 62 } 63 } 64 } 65 #endif /* _QEDE_PTP_H_ */ 66