/*
* 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__ */
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