54 lines
1.2 KiB
C
54 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* Microchip switch tag common header
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*
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* Copyright (C) 2022 Microchip Technology Inc.
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*/
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#ifndef _NET_DSA_KSZ_COMMON_H_
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#define _NET_DSA_KSZ_COMMON_H_
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#include <net/dsa.h>
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/* All time stamps from the KSZ consist of 2 bits for seconds and 30 bits for
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* nanoseconds. This is NOT the same as 32 bits for nanoseconds.
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*/
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#define KSZ_TSTAMP_SEC_MASK GENMASK(31, 30)
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#define KSZ_TSTAMP_NSEC_MASK GENMASK(29, 0)
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static inline ktime_t ksz_decode_tstamp(u32 tstamp)
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{
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u64 ns = FIELD_GET(KSZ_TSTAMP_SEC_MASK, tstamp) * NSEC_PER_SEC +
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FIELD_GET(KSZ_TSTAMP_NSEC_MASK, tstamp);
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return ns_to_ktime(ns);
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}
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struct ksz_deferred_xmit_work {
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struct dsa_port *dp;
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struct sk_buff *skb;
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struct kthread_work work;
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};
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struct ksz_tagger_data {
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void (*xmit_work_fn)(struct kthread_work *work);
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void (*hwtstamp_set_state)(struct dsa_switch *ds, bool on);
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};
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struct ksz_skb_cb {
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struct sk_buff *clone;
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unsigned int ptp_type;
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bool update_correction;
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u32 tstamp;
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};
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#define KSZ_SKB_CB(skb) \
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((struct ksz_skb_cb *)((skb)->cb))
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static inline struct ksz_tagger_data *
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ksz_tagger_data(struct dsa_switch *ds)
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{
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return ds->tagger_data;
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}
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#endif /* _NET_DSA_KSZ_COMMON_H_ */
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