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| author | Vladimir Oltean <vladimir.oltean@nxp.com> | 2021-10-12 14:40:38 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-10-12 17:35:18 -0700 |
| commit | fba01283d85a09e0e2ef552c6e764b903111d90a (patch) | |
| tree | 4101cb8459d124789cf26645f849caf7f8782d95 /net | |
| parent | 9fde506e0c53b8309f69b18b4b8144c544b4b3b1 (diff) | |
net: mscc: ocelot: deny TX timestamping of non-PTP packets
It appears that Ocelot switches cannot timestamp non-PTP frames,
I tested this using the isochron program at:
https://github.com/vladimiroltean/tsn-scripts
with the result that the driver increments the ocelot_port->ts_id
counter as expected, puts it in the REW_OP, but the hardware seems to
not timestamp these packets at all, since no IRQ is emitted.
Therefore check whether we are sending PTP frames, and refuse to
populate REW_OP otherwise.
Fixes: 4e3b0468e6d7 ("net: mscc: PTP Hardware Clock (PHC) support")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions