diff options
Diffstat (limited to 'drivers/net/ethernet/intel/i40e/i40e_txrx.c')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_txrx.c | 46 |
1 files changed, 37 insertions, 9 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c index 330e4ef43cd8..7d0a5ea08656 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c @@ -853,15 +853,40 @@ static bool i40e_clean_tx_irq(struct i40e_ring *tx_ring, int budget) **/ static void i40e_force_wb(struct i40e_vsi *vsi, struct i40e_q_vector *q_vector) { - u32 val = I40E_PFINT_DYN_CTLN_INTENA_MASK | - I40E_PFINT_DYN_CTLN_ITR_INDX_MASK | /* set noitr */ - I40E_PFINT_DYN_CTLN_SWINT_TRIG_MASK | - I40E_PFINT_DYN_CTLN_SW_ITR_INDX_ENA_MASK; - /* allow 00 to be written to the index */ - - wr32(&vsi->back->hw, - I40E_PFINT_DYN_CTLN(q_vector->v_idx + vsi->base_vector - 1), - val); + u16 flags = q_vector->tx.ring[0].flags; + + if (flags & I40E_TXR_FLAGS_WB_ON_ITR) { + u32 val; + + if (q_vector->arm_wb_state) + return; + + val = I40E_PFINT_DYN_CTLN_WB_ON_ITR_MASK; + + wr32(&vsi->back->hw, + I40E_PFINT_DYN_CTLN(q_vector->v_idx + + vsi->base_vector - 1), + val); + q_vector->arm_wb_state = true; + } else if (vsi->back->flags & I40E_FLAG_MSIX_ENABLED) { + u32 val = I40E_PFINT_DYN_CTLN_INTENA_MASK | + I40E_PFINT_DYN_CTLN_ITR_INDX_MASK | /* set noitr */ + I40E_PFINT_DYN_CTLN_SWINT_TRIG_MASK | + I40E_PFINT_DYN_CTLN_SW_ITR_INDX_ENA_MASK; + /* allow 00 to be written to the index */ + + wr32(&vsi->back->hw, + I40E_PFINT_DYN_CTLN(q_vector->v_idx + + vsi->base_vector - 1), val); + } else { + u32 val = I40E_PFINT_DYN_CTL0_INTENA_MASK | + I40E_PFINT_DYN_CTL0_ITR_INDX_MASK | /* set noitr */ + I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK | + I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK; + /* allow 00 to be written to the index */ + + wr32(&vsi->back->hw, I40E_PFINT_DYN_CTL0, val); + } } /** @@ -1918,6 +1943,9 @@ int i40e_napi_poll(struct napi_struct *napi, int budget) return budget; } + if (vsi->back->flags & I40E_TXR_FLAGS_WB_ON_ITR) + q_vector->arm_wb_state = false; + /* Work is done so exit the polling mode and re-enable the interrupt */ napi_complete(napi); if (vsi->back->flags & I40E_FLAG_MSIX_ENABLED) { |