diff options
| author | Vishvambar Panth S <vishvambarpanth.s@microchip.com> | 2023-10-20 21:58:01 +0300 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2023-10-24 10:16:08 +0300 |
| commit | 169e0a5e43208fc5a6c5bc6476348cbd7203ae8a (patch) | |
| tree | 6957594c12ef744e0db2947b265ef2fe2e6458ce /net/core | |
| parent | efb3e0e1649f944c032095e3f0533a235a7477d3 (diff) | |
| download | linux-169e0a5e43208fc5a6c5bc6476348cbd7203ae8a.tar.xz | |
net: microchip: lan743x: improve throughput with rx timestamp config
Currently all RX frames are timestamped which results in a performance
penalty when timestamping is not needed. The default is now being
changed to not timestamp any Rx frames (HWTSTAMP_FILTER_NONE), but
support has been added to allow changing the desired RX timestamping
mode (HWTSTAMP_FILTER_ALL - which was the previous setting and
HWTSTAMP_FILTER_PTP_V2_EVENT are now supported) using
SIOCSHWTSTAMP. All settings were tested using the hwstamp_ctl application.
It is also noted that ptp4l, when started, preconfigures the device to
timestamp using HWTSTAMP_FILTER_PTP_V2_EVENT, so this driver continues
to work properly "out of the box".
Test setup: x64 PC with LAN7430 ---> x64 PC as partner
iperf3 with - Timestamp all incoming packets:
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-5.05 sec 517 MBytes 859 Mbits/sec 0 sender
[ 5] 0.00-5.00 sec 515 MBytes 864 Mbits/sec receiver
iperf Done.
iperf3 with - Timestamp only PTP packets:
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-5.04 sec 563 MBytes 937 Mbits/sec 0 sender
[ 5] 0.00-5.00 sec 561 MBytes 941 Mbits/sec receiver
Signed-off-by: Vishvambar Panth S <vishvambarpanth.s@microchip.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20231020185801.25649-1-vishvambarpanth.s@microchip.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'net/core')
0 files changed, 0 insertions, 0 deletions