[net-next,v2,0/2] net: micrel: Change how to read TX timestamp

Message

Horatiu Vultur June 13, 2023, 9:45 a.m. UTC

Change how to read the timestamp of the received frames. Currently it is
required to read over the MDIO bus each of the timestamps but it is
possible to change to receive the timestamp (the nanosecond part and the
least significant two bits of the second) in the frame.
The first patch makes this change, while the second patch optimized the
read of second part. Because it is not required to read the second part
of the timestmap for each received frame but it is OK to read the second
part twice per second and then cache it.

v1->v2:
- create a patch series instead of single patch
- add optimization for reading the second part of the received timestamp,
  read the second twice per second instead of for each frame

Horatiu Vultur (2):
  net: micrel: Change to receive timestamp in the frame for lan8841
  net: micrel: Schedule work to read seconds for lan8841

 drivers/net/phy/micrel.c | 272 ++++++++++++++++++++++++++-------------
 1 file changed, 180 insertions(+), 92 deletions(-)

Comments

Horatiu Vultur June 13, 2023, 11:38 a.m. UTC | #1

The 06/13/2023 11:45, Horatiu Vultur wrote:

Argh... I forgot add Richard to this thread. Therefore CC him now.

> Change how to read the timestamp of the received frames. Currently it is
> required to read over the MDIO bus each of the timestamps but it is
> possible to change to receive the timestamp (the nanosecond part and the
> least significant two bits of the second) in the frame.
> The first patch makes this change, while the second patch optimized the
> read of second part. Because it is not required to read the second part
> of the timestmap for each received frame but it is OK to read the second
> part twice per second and then cache it.
> 
> v1->v2:
> - create a patch series instead of single patch
> - add optimization for reading the second part of the received timestamp,
>   read the second twice per second instead of for each frame
> 
> Horatiu Vultur (2):
>   net: micrel: Change to receive timestamp in the frame for lan8841
>   net: micrel: Schedule work to read seconds for lan8841
> 
>  drivers/net/phy/micrel.c | 272 ++++++++++++++++++++++++++-------------
>  1 file changed, 180 insertions(+), 92 deletions(-)
> 
> -- 
> 2.38.0
>