| Message ID | 20191227130230.21541-1-olteanv@gmail.com |
|---|---|
| Headers | show |
| Series | Improvements to SJA1105 DSA RX timestamping | expand |
From: Vladimir Oltean <olteanv@gmail.com> Date: Fri, 27 Dec 2019 15:02:27 +0200 > This series makes the sja1105 DSA driver use a dedicated kernel thread > for RX timestamping, a process which is time-sensitive and otherwise a > bit fragile. This allows users to customize their system (probabil an > embedded PTP switch) fully and allocate the CPU bandwidth for the driver > to expedite the RX timestamps as quickly as possible. > > While doing this conversion, add a function to the PTP core for > cancelling this kernel thread (function which I found rather strange to > be missing). Series applied, thanks Vladimir.
This series makes the sja1105 DSA driver use a dedicated kernel thread for RX timestamping, a process which is time-sensitive and otherwise a bit fragile. This allows users to customize their system (probabil an embedded PTP switch) fully and allocate the CPU bandwidth for the driver to expedite the RX timestamps as quickly as possible. While doing this conversion, add a function to the PTP core for cancelling this kernel thread (function which I found rather strange to be missing). Vladimir Oltean (3): ptp: introduce ptp_cancel_worker_sync net: dsa: sja1105: Use PTP core's dedicated kernel thread for RX timestamping net: dsa: sja1105: Empty the RX timestamping queue on PTP settings change drivers/net/dsa/sja1105/sja1105_ptp.c | 36 +++++++++++++-------------- drivers/net/dsa/sja1105/sja1105_ptp.h | 1 + drivers/ptp/ptp_clock.c | 6 +++++ include/linux/dsa/sja1105.h | 2 -- include/linux/ptp_clock_kernel.h | 9 +++++++ 5 files changed, 34 insertions(+), 20 deletions(-)