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| author | David S. Miller <davem@davemloft.net> | 2019-12-30 20:31:41 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-12-30 20:31:41 -0800 |
| commit | 9010ef57592c01a20cc3547b64121b67f5949704 (patch) | |
| tree | 62cd2792a0b0d6e80c73f1a64e6921ebd1c3da78 /include/linux | |
| parent | db99d5126fb9067c3123b40a33c9936235f059fa (diff) | |
| parent | 19d1f0ed74b75279f46549de80fa2adf80ef9995 (diff) | |
Merge branch 'Improvements-to-SJA1105-DSA-RX-timestamping'
Vladimir Oltean says:
====================
Improvements to SJA1105 DSA RX timestamping
This series makes the sja1105 DSA driver use a dedicated kernel thread
for RX timestamping, a process which is time-sensitive and otherwise a
bit fragile. This allows users to customize their system (probabil an
embedded PTP switch) fully and allocate the CPU bandwidth for the driver
to expedite the RX timestamps as quickly as possible.
While doing this conversion, add a function to the PTP core for
cancelling this kernel thread (function which I found rather strange to
be missing).
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/dsa/sja1105.h | 2 | ||||
| -rw-r--r-- | include/linux/ptp_clock_kernel.h | 9 |
2 files changed, 9 insertions, 2 deletions
diff --git a/include/linux/dsa/sja1105.h b/include/linux/dsa/sja1105.h index 897e799dbcb9..c0b6a603ea8c 100644 --- a/include/linux/dsa/sja1105.h +++ b/include/linux/dsa/sja1105.h @@ -37,8 +37,6 @@ * the structure defined in struct sja1105_private. */ struct sja1105_tagger_data { - struct sk_buff_head skb_rxtstamp_queue; - struct work_struct rxtstamp_work; struct sk_buff *stampable_skb; /* Protects concurrent access to the meta state machine * from taggers running on multiple ports on SMP systems diff --git a/include/linux/ptp_clock_kernel.h b/include/linux/ptp_clock_kernel.h index 93cc4f1d444a..c64a1ef87240 100644 --- a/include/linux/ptp_clock_kernel.h +++ b/include/linux/ptp_clock_kernel.h @@ -243,6 +243,13 @@ int ptp_find_pin(struct ptp_clock *ptp, int ptp_schedule_worker(struct ptp_clock *ptp, unsigned long delay); +/** + * ptp_cancel_worker_sync() - cancel ptp auxiliary clock + * + * @ptp: The clock obtained from ptp_clock_register(). + */ +void ptp_cancel_worker_sync(struct ptp_clock *ptp); + #else static inline struct ptp_clock *ptp_clock_register(struct ptp_clock_info *info, struct device *parent) @@ -260,6 +267,8 @@ static inline int ptp_find_pin(struct ptp_clock *ptp, static inline int ptp_schedule_worker(struct ptp_clock *ptp, unsigned long delay) { return -EOPNOTSUPP; } +static inline void ptp_cancel_worker_sync(struct ptp_clock *ptp) +{ } #endif |