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| author | Maxim Georgiev <glipus@gmail.com> | 2023-08-01 17:28:13 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-08-02 19:11:05 -0700 |
| commit | 66f7223039c0cef81221e9779520479895995815 (patch) | |
| tree | f961a7a07220462f726e1102f442ab7d2ff92d3b /include/linux/net_tstamp.h | |
| parent | 72c1a28473fb132f08a2a447dd1425a472696cd9 (diff) | |
| download | lwn-66f7223039c0cef81221e9779520479895995815.tar.gz lwn-66f7223039c0cef81221e9779520479895995815.zip | |
net: add NDOs for configuring hardware timestamping
Current hardware timestamping API for NICs requires implementing
.ndo_eth_ioctl() for SIOCGHWTSTAMP and SIOCSHWTSTAMP.
That API has some boilerplate such as request parameter translation
between user and kernel address spaces, handling possible translation
failures correctly, etc. Since it is the same all across the board, it
would be desirable to handle it through generic code.
Here we introduce .ndo_hwtstamp_get() and .ndo_hwtstamp_set(), which
implement that boilerplate and allow drivers to just act upon requests.
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Maxim Georgiev <glipus@gmail.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Link: https://lore.kernel.org/r/20230801142824.1772134-2-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/linux/net_tstamp.h')
| -rw-r--r-- | include/linux/net_tstamp.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/net_tstamp.h b/include/linux/net_tstamp.h index fd67f3cc0c4b..7c59824f43f5 100644 --- a/include/linux/net_tstamp.h +++ b/include/linux/net_tstamp.h @@ -30,4 +30,12 @@ static inline void hwtstamp_config_to_kernel(struct kernel_hwtstamp_config *kern kernel_cfg->rx_filter = cfg->rx_filter; } +static inline void hwtstamp_config_from_kernel(struct hwtstamp_config *cfg, + const struct kernel_hwtstamp_config *kernel_cfg) +{ + cfg->flags = kernel_cfg->flags; + cfg->tx_type = kernel_cfg->tx_type; + cfg->rx_filter = kernel_cfg->rx_filter; +} + #endif /* _LINUX_NET_TIMESTAMPING_H_ */ |