75 lines
2.7 KiB
C
75 lines
2.7 KiB
C
/*
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* This file is part of the Chelsio T4 Ethernet driver for Linux.
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*
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* Copyright (c) 2003-2017 Chelsio Communications, Inc. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef __CXGB4_PTP_H__
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#define __CXGB4_PTP_H__
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/* Maximum parts-per-billion adjustment that is acceptable */
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#define MAX_PTP_FREQ_ADJ 1000000
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#define PTP_CLOCK_MAX_ADJTIME 10000000 /* 10 ms */
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#define PTP_MIN_LENGTH 63
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#define PTP_IN_TRANSMIT_PACKET_MAXNUM 240
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#define PTP_EVENT_PORT 319
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enum ptp_rx_filter_mode {
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PTP_TS_NONE = 0,
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PTP_TS_L2,
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PTP_TS_L4,
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PTP_TS_L2_L4
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};
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struct port_info;
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static inline bool cxgb4_xmit_with_hwtstamp(struct sk_buff *skb)
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{
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return skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP;
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}
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static inline void cxgb4_xmit_hwtstamp_pending(struct sk_buff *skb)
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{
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skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
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}
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void cxgb4_ptp_init(struct adapter *adap);
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void cxgb4_ptp_stop(struct adapter *adap);
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bool cxgb4_ptp_is_ptp_tx(struct sk_buff *skb);
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bool cxgb4_ptp_is_ptp_rx(struct sk_buff *skb);
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int cxgb4_ptprx_timestamping(struct port_info *pi, u8 port, u16 mode);
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int cxgb4_ptp_redirect_rx_packet(struct adapter *adap, struct port_info *pi);
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int cxgb4_ptp_txtype(struct adapter *adap, u8 port_id);
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void cxgb4_ptp_read_hwstamp(struct adapter *adap, struct port_info *pi);
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bool is_ptp_enabled(struct sk_buff *skb, struct net_device *dev);
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#endif /* __CXGB4_PTP_H__ */
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