diff options
| author | Karol Kolacinski <karol.kolacinski@intel.com> | 2023-11-29 13:40:23 +0100 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2024-01-02 11:18:32 -0800 |
| commit | 82e71b226e0ef770d7bc143701c8b4960b4eb3d5 (patch) | |
| tree | d744b19b0f9b79492869b674760f30cca14eb701 /drivers/net/ethernet/intel/ice/ice_type.h | |
| parent | 00d50001444ef5c75c8ab476a6674708f3ff613b (diff) | |
ice: Enable SW interrupt from FW for LL TS
Introduce new capability - Low Latency Timestamping with Interrupt.
On supported devices, driver can request a single timestamp from FW
without polling the register afterwards. Instead, FW can issue
a dedicated interrupt when the timestamp was read from the PHY register
and its value is available to read from the register.
This eliminates the need of bottom half scheduling, which results in
minimal delay for timestamping.
For this mode, allocate TS indices sequentially, so that timestamps are
always completed in FIFO manner.
Co-developed-by: Yochai Hagvi <yochai.hagvi@intel.com>
Signed-off-by: Yochai Hagvi <yochai.hagvi@intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Karol Kolacinski <karol.kolacinski@intel.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_type.h')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_type.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_type.h b/drivers/net/ethernet/intel/ice/ice_type.h index 6df7c4487ad0..8ed1edd3dea5 100644 --- a/drivers/net/ethernet/intel/ice/ice_type.h +++ b/drivers/net/ethernet/intel/ice/ice_type.h @@ -353,6 +353,7 @@ struct ice_ts_func_info { #define ICE_TS_TMR0_ENA_M BIT(25) #define ICE_TS_TMR1_ENA_M BIT(26) #define ICE_TS_LL_TX_TS_READ_M BIT(28) +#define ICE_TS_LL_TX_TS_INT_READ_M BIT(29) struct ice_ts_dev_info { /* Device specific info */ @@ -366,6 +367,7 @@ struct ice_ts_dev_info { u8 tmr0_ena; u8 tmr1_ena; u8 ts_ll_read; + u8 ts_ll_int_read; }; /* Function specific capabilities */ |