[Intel-wired-lan] [PATCH next-queue v2 1/2] igc: Enable internal i225 PPS

[Dvora Fuxbrumer]

On 19/02/2021 03:31, Ederson de Souza wrote:
> The i225 device can produce one interrupt on the full second, much
> like i210 - from where this patch is inspired.
> 
> This patch sets up the full second interruption on the i225 and when
> receiving it, it sends a PPS event to PTP (Precision Time Protocol)
> kernel subsystem.
> 
> The PTP subsystem exposes the PPS events via ioctl and sysfs, and one
> can use the `testptp` tool (tools/testing/selftests/ptp) to check that
> the events are being generated.
> 
> Signed-off-by: Ederson de Souza <ederson.desouza at intel.com>
> ---
>   drivers/net/ethernet/intel/igc/igc.h      |  2 ++
>   drivers/net/ethernet/intel/igc/igc_main.c |  8 +++++++
>   drivers/net/ethernet/intel/igc/igc_ptp.c  | 28 ++++++++++++++++++++++-
>   3 files changed, 37 insertions(+), 1 deletion(-)
> 
Tested-by: Dvora Fuxbrumer <dvorax.fuxbrumer at linux.intel.com>