linux-kernel - Re: [PATCH net-next v2 0/2] net: micrel: Change how to read TX timestamp

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Message-ID: <20230613113808.mqasva7fuoxuurab@soft-dev3-1>
Date:   Tue, 13 Jun 2023 13:38:08 +0200
From:   Horatiu Vultur <horatiu.vultur@...rochip.com>
To:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:     <andrew@...n.ch>, <hkallweit1@...il.com>, <linux@...linux.org.uk>,
        <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
        <pabeni@...hat.com>, <richardcochran@...il.com>
Subject: Re: [PATCH net-next v2 0/2] net: micrel: Change how to read TX
 timestamp

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
> 

-- 
/Horatiu