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_common.c | |
| 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_common.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_common.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c index bec770e34f39..3cbfe0bf8e74 100644 --- a/drivers/net/ethernet/intel/ice/ice_common.c +++ b/drivers/net/ethernet/intel/ice/ice_common.c @@ -2519,6 +2519,8 @@ ice_parse_1588_dev_caps(struct ice_hw *hw, struct ice_hw_dev_caps *dev_p, info->tmr1_owned = ((number & ICE_TS_TMR1_OWND_M) != 0); info->tmr1_ena = ((number & ICE_TS_TMR1_ENA_M) != 0); + info->ts_ll_read = ((number & ICE_TS_LL_TX_TS_READ_M) != 0); + info->ena_ports = logical_id; info->tmr_own_map = phys_id; @@ -2536,6 +2538,8 @@ ice_parse_1588_dev_caps(struct ice_hw *hw, struct ice_hw_dev_caps *dev_p, info->tmr1_owned); ice_debug(hw, ICE_DBG_INIT, "dev caps: tmr1_ena = %u\n", info->tmr1_ena); + ice_debug(hw, ICE_DBG_INIT, "dev caps: ts_ll_read = %u\n", + info->ts_ll_read); ice_debug(hw, ICE_DBG_INIT, "dev caps: ieee_1588 ena_ports = %u\n", info->ena_ports); ice_debug(hw, ICE_DBG_INIT, "dev caps: tmr_own_map = %u\n", |