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| author | Simei Su <[email protected]> | 2024-11-06 17:37:19 +0000 |
|---|---|---|
| committer | Tony Nguyen <[email protected]> | 2025-02-14 18:57:45 +0000 |
| commit | 7c1178a9df583454fc76be2ca8a6f0bef6613fba (patch) | |
| tree | 52b757fc5e51ee7c4a647e1103fcf7ea90b184e6 /drivers/net/ethernet/intel/ice/ice_ptp.h | |
| parent | virtchnl: add support for enabling PTP on iAVF (diff) | |
| download | kernel-7c1178a9df583454fc76be2ca8a6f0bef6613fba.tar.gz kernel-7c1178a9df583454fc76be2ca8a6f0bef6613fba.zip | |
ice: support Rx timestamp on flex descriptor
To support Rx timestamp offload, VIRTCHNL_OP_1588_PTP_CAPS is sent by
the VF to request PTP capability and responded by the PF what capability
is enabled for that VF.
Hardware captures timestamps which contain only 32 bits of nominal
nanoseconds, as opposed to the 64bit timestamps that the stack expects.
To convert 32b to 64b, we need a current PHC time.
VIRTCHNL_OP_1588_PTP_GET_TIME is sent by the VF and responded by the
PF with the current PHC time.
Signed-off-by: Simei Su <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Tested-by: Rafal Romanowski <[email protected]>
Co-developed-by: Mateusz Polchlopek <[email protected]>
Signed-off-by: Mateusz Polchlopek <[email protected]>
Signed-off-by: Tony Nguyen <[email protected]>
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_ptp.h')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_ptp.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.h b/drivers/net/ethernet/intel/ice/ice_ptp.h index 783139de7f74..3b769a0cad00 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.h +++ b/drivers/net/ethernet/intel/ice/ice_ptp.h @@ -304,6 +304,8 @@ void ice_ptp_req_tx_single_tstamp(struct ice_ptp_tx *tx, u8 idx); void ice_ptp_complete_tx_single_tstamp(struct ice_ptp_tx *tx); enum ice_tx_tstamp_work ice_ptp_process_ts(struct ice_pf *pf); irqreturn_t ice_ptp_ts_irq(struct ice_pf *pf); +u64 ice_ptp_read_src_clk_reg(struct ice_pf *pf, + struct ptp_system_timestamp *sts); u64 ice_ptp_get_rx_hwts(const union ice_32b_rx_flex_desc *rx_desc, const struct ice_pkt_ctx *pkt_ctx); @@ -347,6 +349,12 @@ static inline irqreturn_t ice_ptp_ts_irq(struct ice_pf *pf) return IRQ_HANDLED; } +static inline u64 ice_ptp_read_src_clk_reg(struct ice_pf *pf, + struct ptp_system_timestamp *sts) +{ + return 0; +} + static inline u64 ice_ptp_get_rx_hwts(const union ice_32b_rx_flex_desc *rx_desc, const struct ice_pkt_ctx *pkt_ctx) |