xref: /linux/drivers/net/ethernet/marvell/octeontx2/nic/otx2_ptp.h (revision 4f2c0a4acffbec01079c28f839422e64ddeff004) 
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Marvell RVU Ethernet driver
3  *
4  * Copyright (C) 2020 Marvell.
5  *
6  */
7 
8 #ifndef OTX2_PTP_H
9 #define OTX2_PTP_H
10 
otx2_ptp_convert_rx_timestamp(u64 timestamp)11 static inline u64 otx2_ptp_convert_rx_timestamp(u64 timestamp)
12 {
13 	return be64_to_cpu(*(__be64 *)&timestamp);
14 }
15 
otx2_ptp_convert_tx_timestamp(u64 timestamp)16 static inline u64 otx2_ptp_convert_tx_timestamp(u64 timestamp)
17 {
18 	return timestamp;
19 }
20 
cn10k_ptp_convert_timestamp(u64 timestamp)21 static inline u64 cn10k_ptp_convert_timestamp(u64 timestamp)
22 {
23 	return ((timestamp >> 32) * NSEC_PER_SEC) + (timestamp & 0xFFFFFFFFUL);
24 }
25 
26 int otx2_ptp_init(struct otx2_nic *pfvf);
27 void otx2_ptp_destroy(struct otx2_nic *pfvf);
28 
29 int otx2_ptp_clock_index(struct otx2_nic *pfvf);
30 int otx2_ptp_tstamp2time(struct otx2_nic *pfvf, u64 tstamp, u64 *tsns);
31 
32 #endif
33