diff options
| author | Karol Kolacinski <karol.kolacinski@intel.com> | 2022-09-16 13:17:28 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-09-20 16:14:28 -0700 |
| commit | 1229b33973c7b89e989945a3edae7a17b6f909da (patch) | |
| tree | 8340e3595da4cd5da6bf53786e78e5e45f8cf5f2 /drivers/net/ethernet/intel/ice/ice_ptp.h | |
| parent | 0572b18da90033988aad44ac6edea4234df97e88 (diff) | |
ice: Add low latency Tx timestamp read
E810 products can support low latency Tx timestamp register read.
This requires usage of threaded IRQ instead of kthread to reduce the
kthread start latency (spikes up to 20 ms).
Add a check for the device capability and use the new method if
supported.
Signed-off-by: Karol Kolacinski <karol.kolacinski@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://lore.kernel.org/r/20220916201728.241510-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_ptp.h')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_ptp.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.h b/drivers/net/ethernet/intel/ice/ice_ptp.h index d53dcd03e36b..a224b5e90386 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.h +++ b/drivers/net/ethernet/intel/ice/ice_ptp.h @@ -105,7 +105,6 @@ struct ice_tx_tstamp { /** * struct ice_ptp_tx - Tracking structure for all Tx timestamp requests on a port - * @work: work function to handle processing of Tx timestamps * @lock: lock to prevent concurrent write to in_use bitmap * @tstamps: array of len to store outstanding requests * @in_use: bitmap of len to indicate which slots are in use @@ -117,7 +116,6 @@ struct ice_tx_tstamp { * window, timestamps are temporarily disabled. */ struct ice_ptp_tx { - struct kthread_work work; spinlock_t lock; /* lock protecting in_use bitmap */ struct ice_tx_tstamp *tstamps; unsigned long *in_use; @@ -249,7 +247,7 @@ void ice_ptp_cfg_timestamp(struct ice_pf *pf, bool ena); int ice_get_ptp_clock_index(struct ice_pf *pf); s8 ice_ptp_request_ts(struct ice_ptp_tx *tx, struct sk_buff *skb); -void ice_ptp_process_ts(struct ice_pf *pf); +bool ice_ptp_process_ts(struct ice_pf *pf); void ice_ptp_rx_hwtstamp(struct ice_rx_ring *rx_ring, @@ -282,7 +280,10 @@ ice_ptp_request_ts(struct ice_ptp_tx *tx, struct sk_buff *skb) return -1; } -static inline void ice_ptp_process_ts(struct ice_pf *pf) { } +static inline bool ice_ptp_process_ts(struct ice_pf *pf) +{ + return true; +} static inline void ice_ptp_rx_hwtstamp(struct ice_rx_ring *rx_ring, union ice_32b_rx_flex_desc *rx_desc, struct sk_buff *skb) { } |