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| author |   Yangbo Lu <yangbo.lu@nxp.com> | 2021-04-27 12:22:03 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2021-04-27 14:10:15 -0700 |
| commit | 39e5308b3250666cc92c5ca33a667698ac645bd2 (patch) | |
| tree | 579ecd683ca4111cc6d6f81f2d16b2f09f3d25b5 /include/soc/mscc | |
| parent | net: mscc: ocelot: convert to ocelot_port_txtstamp_request() (diff) | |
| download | linux-dev-39e5308b3250666cc92c5ca33a667698ac645bd2.tar.xz linux-dev-39e5308b3250666cc92c5ca33a667698ac645bd2.zip | |
net: mscc: ocelot: support PTP Sync one-step timestamping
Although HWTSTAMP_TX_ONESTEP_SYNC existed in ioctl for hardware timestamp
configuration, the PTP Sync one-step timestamping had never been supported.
This patch is to truely support it.
- ocelot_port_txtstamp_request()
This function handles tx timestamp request by storing
ptp_cmd(tx timestamp type) in OCELOT_SKB_CB(skb)->ptp_cmd,
and additionally for two-step timestamp storing ts_id in
OCELOT_SKB_CB(clone)->ptp_cmd.
- ocelot_ptp_rew_op()
During xmit, this function is called to get rew_op (rewriter option) by
checking skb->cb for tx timestamp request, and configure to transmitting.
Non-onestep-Sync packet with one-step timestamp request falls back to use
two-step timestamp.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/soc/mscc')
| -rw-r--r-- | include/soc/mscc/ocelot.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/soc/mscc/ocelot.h b/include/soc/mscc/ocelot.h index f7632519cb9c..2f5ce4d4fdbf 100644 --- a/include/soc/mscc/ocelot.h +++ b/include/soc/mscc/ocelot.h @@ -691,6 +691,7 @@ struct ocelot_policer { struct ocelot_skb_cb { struct sk_buff *clone; + u8 ptp_cmd; u8 ts_id; }; @@ -748,15 +749,16 @@ u32 __ocelot_target_read_ix(struct ocelot *ocelot, enum ocelot_target target, void __ocelot_target_write_ix(struct ocelot *ocelot, enum ocelot_target target, u32 val, u32 reg, u32 offset); -/* Packet I/O */ #if IS_ENABLED(CONFIG_MSCC_OCELOT_SWITCH_LIB) +/* Packet I/O */ bool ocelot_can_inject(struct ocelot *ocelot, int grp); void ocelot_port_inject_frame(struct ocelot *ocelot, int port, int grp, u32 rew_op, struct sk_buff *skb); int ocelot_xtr_poll_frame(struct ocelot *ocelot, int grp, struct sk_buff **skb); void ocelot_drain_cpu_queue(struct ocelot *ocelot, int grp); +u32 ocelot_ptp_rew_op(struct sk_buff *skb); #else static inline bool ocelot_can_inject(struct ocelot *ocelot, int grp) @@ -780,6 +782,10 @@ static inline void ocelot_drain_cpu_queue(struct ocelot *ocelot, int grp) { } +static inline u32 ocelot_ptp_rew_op(struct sk_buff *skb) +{ + return 0; +} #endif /* Hardware initialization */ |