/*
* 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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