bybrooklyn/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-04-18 14:53:58 -04:00
Code Issues Packages Projects Releases Wiki Activity

ice: add ice driver PTP pin documentation

Browse Source 
Add a description of PTP pins support by the adapters to ice driver
documentation.

Reviewed-by: Milena Olech <milena.olech@intel.com>
Signed-off-by: Karol Kolacinski <karol.kolacinski@intel.com>
Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel)
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Karol Kolacinski
2025-04-22 18:01:49 +02:00
committed by Tony Nguyen
parent a33a302b50
commit cb9e0de777
1 changed files with 13 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
Documentation/networking/device_drivers/ethernet/intel/ice.rst
View File

@@ -927,6 +927,19 @@ To enable/disable UDP Segmentation Offload, issue the following command::
# ethtool -K <ethX> tx-udp-segmentation [off|on]
PTP pin interface
-----------------
All adapters support standard PTP pin interface. SDPs (Software Definable Pin)
are single ended pins with both periodic output and external timestamp
supported. There are also specific differential input/output pins (TIME_SYNC,
1PPS) with only one of the functions supported.
There are adapters with DPLL, where pins are connected to the DPLL instead of
being exposed on the board. You have to be aware that in those configurations,
only SDP pins are exposed and each pin has its own fixed direction.
To see input signal on those PTP pins, you need to configure DPLL properly.
Output signal is only visible on DPLL and to send it to the board SMA/U.FL pins,
DPLL output pins have to be manually configured.
GNSS module
-----------