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net: dsa: sja1105: move ts_id from sja1105_tagger_data

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The TX timestamp ID is incremented by the SJA1110 PTP timestamping
callback (->port_tx_timestamp) for every packet, when cloning it.
It isn't used by the tagger at all, even though it sits inside the
struct sja1105_tagger_data.

Also, serialization to this structure is currently done through
tagger_data->meta_lock, which is a cheap hack because the meta_lock
isn't used for anything else on SJA1110 (sja1105_rcv_meta_state_machine
isn't called).

This change moves ts_id from sja1105_tagger_data to sja1105_private and
introduces a dedicated spinlock for it, also in sja1105_private.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vladimir Oltean
2021-12-10 01:34:43 +02:00
committed by David S. Miller
parent bfcf142522
commit 22ee9f8e40
4 changed files with 8 additions and 5 deletions
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1
include/linux/dsa/sja1105.h
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@@ -51,7 +51,6 @@ struct sja1105_tagger_data {
*/
spinlock_t meta_lock;
unsigned long state;
u8 ts_id;
/* Used on SJA1110 where meta frames are generated only for
* 2-step TX timestamps
*/