diff options
| author | Yangbo Lu <yangbo.lu@nxp.com> | 2021-06-30 11:11:59 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-07-01 23:08:18 +0300 |
| commit | d463126e23f112629edb01594141ca437a92a108 (patch) | |
| tree | 65dc1baabdb9e2aefc4208f358f6eec3bf54154d /include/uapi/linux/net_tstamp.h | |
| parent | 6c9a0a0f2333b1e3c29fef47a8b12131fce4905b (diff) | |
| download | linux-d463126e23f112629edb01594141ca437a92a108.tar.xz | |
net: sock: extend SO_TIMESTAMPING for PHC binding
Since PTP virtual clock support is added, there can be
several PTP virtual clocks based on one PTP physical
clock for timestamping.
This patch is to extend SO_TIMESTAMPING API to support
PHC (PTP Hardware Clock) binding by adding a new flag
SOF_TIMESTAMPING_BIND_PHC. When PTP virtual clocks are
in use, user space can configure to bind one for
timestamping, but PTP physical clock is not supported
and not needed to bind.
This patch is preparation for timestamp conversion from
raw timestamp to a specific PTP virtual clock time in
core net.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/uapi/linux/net_tstamp.h')
| -rw-r--r-- | include/uapi/linux/net_tstamp.h | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/include/uapi/linux/net_tstamp.h b/include/uapi/linux/net_tstamp.h index 7ed0b3d1c00a..fcc61c73a666 100644 --- a/include/uapi/linux/net_tstamp.h +++ b/include/uapi/linux/net_tstamp.h @@ -13,7 +13,7 @@ #include <linux/types.h> #include <linux/socket.h> /* for SO_TIMESTAMPING */ -/* SO_TIMESTAMPING gets an integer bit field comprised of these values */ +/* SO_TIMESTAMPING flags */ enum { SOF_TIMESTAMPING_TX_HARDWARE = (1<<0), SOF_TIMESTAMPING_TX_SOFTWARE = (1<<1), @@ -30,8 +30,9 @@ enum { SOF_TIMESTAMPING_OPT_STATS = (1<<12), SOF_TIMESTAMPING_OPT_PKTINFO = (1<<13), SOF_TIMESTAMPING_OPT_TX_SWHW = (1<<14), + SOF_TIMESTAMPING_BIND_PHC = (1 << 15), - SOF_TIMESTAMPING_LAST = SOF_TIMESTAMPING_OPT_TX_SWHW, + SOF_TIMESTAMPING_LAST = SOF_TIMESTAMPING_BIND_PHC, SOF_TIMESTAMPING_MASK = (SOF_TIMESTAMPING_LAST - 1) | SOF_TIMESTAMPING_LAST }; @@ -47,6 +48,18 @@ enum { SOF_TIMESTAMPING_TX_ACK) /** + * struct so_timestamping - SO_TIMESTAMPING parameter + * + * @flags: SO_TIMESTAMPING flags + * @bind_phc: Index of PTP virtual clock bound to sock. This is available + * if flag SOF_TIMESTAMPING_BIND_PHC is set. + */ +struct so_timestamping { + int flags; + int bind_phc; +}; + +/** * struct hwtstamp_config - %SIOCGHWTSTAMP and %SIOCSHWTSTAMP parameter * * @flags: no flags defined right now, must be zero for %SIOCSHWTSTAMP |