diff options
| author | Karol Kolacinski <karol.kolacinski@intel.com> | 2023-11-29 15:40:22 +0300 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2024-01-02 22:18:31 +0300 |
| commit | 00d50001444ef5c75c8ab476a6674708f3ff613b (patch) | |
| tree | bb7f56c2d847e4381efe8ada8594dfe2fef688e5 /drivers/net/ethernet/intel/ice | |
| parent | 954fb2d2d49f46e1d9861c45731e26bdeb081695 (diff) | |
| download | linux-00d50001444ef5c75c8ab476a6674708f3ff613b.tar.xz | |
ice: Schedule service task in IRQ top half
Schedule service task and EXTTS in the top half to avoid bottom half
scheduling if possible, which significantly reduces timestamping delay.
Co-developed-by: Michal Michalik <michal.michalik@intel.com>
Signed-off-by: Michal Michalik <michal.michalik@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')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice.h | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_main.c | 20 |
2 files changed, 11 insertions, 10 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h index 2defac6d9168..30816dce76cf 100644 --- a/drivers/net/ethernet/intel/ice/ice.h +++ b/drivers/net/ethernet/intel/ice/ice.h @@ -518,7 +518,6 @@ enum ice_pf_flags { }; enum ice_misc_thread_tasks { - ICE_MISC_THREAD_EXTTS_EVENT, ICE_MISC_THREAD_TX_TSTAMP, ICE_MISC_THREAD_NBITS /* must be last */ }; diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index d460d4231b1d..85004bb2dfe3 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -3084,6 +3084,7 @@ static void ice_ena_misc_vector(struct ice_pf *pf) static irqreturn_t ice_misc_intr(int __always_unused irq, void *data) { struct ice_pf *pf = (struct ice_pf *)data; + irqreturn_t ret = IRQ_HANDLED; struct ice_hw *hw = &pf->hw; struct device *dev; u32 oicr, ena_mask; @@ -3165,8 +3166,10 @@ static irqreturn_t ice_misc_intr(int __always_unused irq, void *data) if (oicr & PFINT_OICR_TSYN_TX_M) { ena_mask &= ~PFINT_OICR_TSYN_TX_M; - if (ice_ptp_pf_handles_tx_interrupt(pf)) + if (ice_ptp_pf_handles_tx_interrupt(pf)) { set_bit(ICE_MISC_THREAD_TX_TSTAMP, pf->misc_thread); + ret = IRQ_WAKE_THREAD; + } } if (oicr & PFINT_OICR_TSYN_EVNT_M) { @@ -3182,7 +3185,7 @@ static irqreturn_t ice_misc_intr(int __always_unused irq, void *data) GLTSYN_STAT_EVENT1_M | GLTSYN_STAT_EVENT2_M); - set_bit(ICE_MISC_THREAD_EXTTS_EVENT, pf->misc_thread); + ice_ptp_extts_event(pf); } } @@ -3205,8 +3208,11 @@ static irqreturn_t ice_misc_intr(int __always_unused irq, void *data) set_bit(ICE_PFR_REQ, pf->state); } } + ice_service_task_schedule(pf); + if (ret == IRQ_HANDLED) + ice_irq_dynamic_ena(hw, NULL, NULL); - return IRQ_WAKE_THREAD; + return ret; } /** @@ -3222,12 +3228,7 @@ static irqreturn_t ice_misc_intr_thread_fn(int __always_unused irq, void *data) hw = &pf->hw; if (ice_is_reset_in_progress(pf->state)) - return IRQ_HANDLED; - - ice_service_task_schedule(pf); - - if (test_and_clear_bit(ICE_MISC_THREAD_EXTTS_EVENT, pf->misc_thread)) - ice_ptp_extts_event(pf); + goto skip_irq; if (test_and_clear_bit(ICE_MISC_THREAD_TX_TSTAMP, pf->misc_thread)) { /* Process outstanding Tx timestamps. If there is more work, @@ -3239,6 +3240,7 @@ static irqreturn_t ice_misc_intr_thread_fn(int __always_unused irq, void *data) } } +skip_irq: ice_irq_dynamic_ena(hw, NULL, NULL); return IRQ_HANDLED; |