1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * This file is part of the Chelsio T4 Ethernet driver for Linux.
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * Copyright (c) 2003-2017 Chelsio Communications, Inc. All rights reserved.
5*4882a593Smuzhiyun *
6*4882a593Smuzhiyun * This software is available to you under a choice of one of two
7*4882a593Smuzhiyun * licenses. You may choose to be licensed under the terms of the GNU
8*4882a593Smuzhiyun * General Public License (GPL) Version 2, available from the file
9*4882a593Smuzhiyun * COPYING in the main directory of this source tree, or the
10*4882a593Smuzhiyun * OpenIB.org BSD license below:
11*4882a593Smuzhiyun *
12*4882a593Smuzhiyun * Redistribution and use in source and binary forms, with or
13*4882a593Smuzhiyun * without modification, are permitted provided that the following
14*4882a593Smuzhiyun * conditions are met:
15*4882a593Smuzhiyun *
16*4882a593Smuzhiyun * - Redistributions of source code must retain the above
17*4882a593Smuzhiyun * copyright notice, this list of conditions and the following
18*4882a593Smuzhiyun * disclaimer.
19*4882a593Smuzhiyun *
20*4882a593Smuzhiyun * - Redistributions in binary form must reproduce the above
21*4882a593Smuzhiyun * copyright notice, this list of conditions and the following
22*4882a593Smuzhiyun * disclaimer in the documentation and/or other materials
23*4882a593Smuzhiyun * provided with the distribution.
24*4882a593Smuzhiyun *
25*4882a593Smuzhiyun * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26*4882a593Smuzhiyun * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27*4882a593Smuzhiyun * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28*4882a593Smuzhiyun * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
29*4882a593Smuzhiyun * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
30*4882a593Smuzhiyun * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
31*4882a593Smuzhiyun * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
32*4882a593Smuzhiyun * SOFTWARE.
33*4882a593Smuzhiyun */
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun #ifndef __CXGB4_PTP_H__
36*4882a593Smuzhiyun #define __CXGB4_PTP_H__
37*4882a593Smuzhiyun
38*4882a593Smuzhiyun /* Maximum parts-per-billion adjustment that is acceptable */
39*4882a593Smuzhiyun #define MAX_PTP_FREQ_ADJ 1000000
40*4882a593Smuzhiyun #define PTP_CLOCK_MAX_ADJTIME 10000000 /* 10 ms */
41*4882a593Smuzhiyun
42*4882a593Smuzhiyun #define PTP_MIN_LENGTH 63
43*4882a593Smuzhiyun #define PTP_IN_TRANSMIT_PACKET_MAXNUM 240
44*4882a593Smuzhiyun #define PTP_EVENT_PORT 319
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun enum ptp_rx_filter_mode {
47*4882a593Smuzhiyun PTP_TS_NONE = 0,
48*4882a593Smuzhiyun PTP_TS_L2,
49*4882a593Smuzhiyun PTP_TS_L4,
50*4882a593Smuzhiyun PTP_TS_L2_L4
51*4882a593Smuzhiyun };
52*4882a593Smuzhiyun
53*4882a593Smuzhiyun struct port_info;
54*4882a593Smuzhiyun
cxgb4_xmit_with_hwtstamp(struct sk_buff * skb)55*4882a593Smuzhiyun static inline bool cxgb4_xmit_with_hwtstamp(struct sk_buff *skb)
56*4882a593Smuzhiyun {
57*4882a593Smuzhiyun return skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP;
58*4882a593Smuzhiyun }
59*4882a593Smuzhiyun
cxgb4_xmit_hwtstamp_pending(struct sk_buff * skb)60*4882a593Smuzhiyun static inline void cxgb4_xmit_hwtstamp_pending(struct sk_buff *skb)
61*4882a593Smuzhiyun {
62*4882a593Smuzhiyun skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
63*4882a593Smuzhiyun }
64*4882a593Smuzhiyun
65*4882a593Smuzhiyun void cxgb4_ptp_init(struct adapter *adap);
66*4882a593Smuzhiyun void cxgb4_ptp_stop(struct adapter *adap);
67*4882a593Smuzhiyun bool cxgb4_ptp_is_ptp_tx(struct sk_buff *skb);
68*4882a593Smuzhiyun bool cxgb4_ptp_is_ptp_rx(struct sk_buff *skb);
69*4882a593Smuzhiyun int cxgb4_ptprx_timestamping(struct port_info *pi, u8 port, u16 mode);
70*4882a593Smuzhiyun int cxgb4_ptp_redirect_rx_packet(struct adapter *adap, struct port_info *pi);
71*4882a593Smuzhiyun int cxgb4_ptp_txtype(struct adapter *adap, u8 port_id);
72*4882a593Smuzhiyun void cxgb4_ptp_read_hwstamp(struct adapter *adap, struct port_info *pi);
73*4882a593Smuzhiyun bool is_ptp_enabled(struct sk_buff *skb, struct net_device *dev);
74*4882a593Smuzhiyun #endif /* __CXGB4_PTP_H__ */
75