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SubjectRe: [net-next, v4, 05/11] ethtool: add a new command for getting PHC virtual clocks
On Fri, Jun 25, 2021 at 05:35:07PM +0800, Yangbo Lu wrote:
> Add an interface for getting PHC (PTP Hardware Clock)
> virtual clocks, which are based on PHC physical clock
> providing hardware timestamp to network packets.
>
> Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>

Hello,

do you plan to submit also an ethtool (userspace utility) patch using
this interface?

Michal

> ---
> Changes for v3:
> - Added this patch.
> Changes for v4:
> - Updated doc.
> - Removed ioctl command.
> - Replied only the number of vclock index.
> ---
> Documentation/networking/ethtool-netlink.rst | 22 +++++
> include/linux/ethtool.h | 10 +++
> include/uapi/linux/ethtool_netlink.h | 15 ++++
> net/ethtool/Makefile | 2 +-
> net/ethtool/common.c | 13 +++
> net/ethtool/netlink.c | 10 +++
> net/ethtool/netlink.h | 2 +
> net/ethtool/phc_vclocks.c | 94 ++++++++++++++++++++
> 8 files changed, 167 insertions(+), 1 deletion(-)
> create mode 100644 net/ethtool/phc_vclocks.c
>
> diff --git a/Documentation/networking/ethtool-netlink.rst b/Documentation/networking/ethtool-netlink.rst
> index 6ea91e41593f..c86628e6a235 100644
> --- a/Documentation/networking/ethtool-netlink.rst
> +++ b/Documentation/networking/ethtool-netlink.rst
> @@ -212,6 +212,7 @@ Userspace to kernel:
> ``ETHTOOL_MSG_FEC_SET`` set FEC settings
> ``ETHTOOL_MSG_MODULE_EEPROM_GET`` read SFP module EEPROM
> ``ETHTOOL_MSG_STATS_GET`` get standard statistics
> + ``ETHTOOL_MSG_PHC_VCLOCKS_GET`` get PHC virtual clocks info
> ===================================== ================================
>
> Kernel to userspace:
> @@ -250,6 +251,7 @@ Kernel to userspace:
> ``ETHTOOL_MSG_FEC_NTF`` FEC settings
> ``ETHTOOL_MSG_MODULE_EEPROM_GET_REPLY`` read SFP module EEPROM
> ``ETHTOOL_MSG_STATS_GET_REPLY`` standard statistics
> + ``ETHTOOL_MSG_PHC_VCLOCKS_GET_REPLY`` PHC virtual clocks info
> ======================================== =================================
>
> ``GET`` requests are sent by userspace applications to retrieve device
> @@ -1477,6 +1479,25 @@ Low and high bounds are inclusive, for example:
> etherStatsPkts512to1023Octets 512 1023
> ============================= ==== ====
>
> +PHC_VCLOCKS_GET
> +===============
> +
> +Query device PHC virtual clocks information.
> +
> +Request contents:
> +
> + ==================================== ====== ==========================
> + ``ETHTOOL_A_PHC_VCLOCKS_HEADER`` nested request header
> + ==================================== ====== ==========================
> +
> +Kernel response contents:
> +
> + ==================================== ====== ==========================
> + ``ETHTOOL_A_PHC_VCLOCKS_HEADER`` nested reply header
> + ``ETHTOOL_A_PHC_VCLOCKS_NUM`` u32 PHC virtual clocks number
> + ``ETHTOOL_A_PHC_VCLOCKS_INDEX`` s32 PHC index array
> + ==================================== ====== ==========================
[...]
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