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| author | Yangbo Lu <yangbo.lu@nxp.com> | 2021-06-30 16:11:55 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-07-01 13:08:18 -0700 |
| commit | acb288e8047b7569fbc9af6fa6e9405315345103 (patch) | |
| tree | 166ec405ae0b4532c9c4559fc4ecd98d82c5e303 /include | |
| parent | 44c494c8e30e35713c7d11ca3c5ab332cbfabacf (diff) | |
| download | linux-stable-acb288e8047b7569fbc9af6fa6e9405315345103.tar.gz linux-stable-acb288e8047b7569fbc9af6fa6e9405315345103.tar.bz2 linux-stable-acb288e8047b7569fbc9af6fa6e9405315345103.zip | |
ptp: add kernel API ptp_get_vclocks_index()
Add kernel API ptp_get_vclocks_index() to get all ptp
vclocks index on pclock.
This is preparation for supporting ptp vclocks info query
through ethtool.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/ptp_clock_kernel.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/ptp_clock_kernel.h b/include/linux/ptp_clock_kernel.h index b6fb771ee524..300a984fec87 100644 --- a/include/linux/ptp_clock_kernel.h +++ b/include/linux/ptp_clock_kernel.h @@ -306,6 +306,18 @@ int ptp_schedule_worker(struct ptp_clock *ptp, unsigned long delay); */ void ptp_cancel_worker_sync(struct ptp_clock *ptp); +/** + * ptp_get_vclocks_index() - get all vclocks index on pclock, and + * caller is responsible to free memory + * of vclock_index + * + * @pclock_index: phc index of ptp pclock. + * @vclock_index: pointer to pointer of vclock index. + * + * return number of vclocks. + */ +int ptp_get_vclocks_index(int pclock_index, int **vclock_index); + #else static inline struct ptp_clock *ptp_clock_register(struct ptp_clock_info *info, struct device *parent) @@ -325,6 +337,8 @@ static inline int ptp_schedule_worker(struct ptp_clock *ptp, { return -EOPNOTSUPP; } static inline void ptp_cancel_worker_sync(struct ptp_clock *ptp) { } +static inline int ptp_get_vclocks_index(int pclock_index, int **vclock_index) +{ return 0; } #endif |