From: Shannon Nelson Date: Tue, 11 Nov 2014 20:04:35 +0000 (+0000) Subject: i40e: trigger SW INT with no ITR wait X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=5d1ff1061c26f6e115784bad62767ca47d67f47f;p=deliverable%2Flinux.git i40e: trigger SW INT with no ITR wait Since we want the SW INT to go off as soon as possible, write the extra bits that will turn off the ITR wait for the interrupt. Change-ID: I6d5382ba60840fa32abb7dea17c839eb4b5f68f7 Signed-off-by: Shannon Nelson Signed-off-by: Jeff Kirsher --- diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c index bb1698a7b3d1..b2402851a9bd 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c +++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c @@ -1400,7 +1400,10 @@ static int i40e_intr_test(struct net_device *netdev, u64 *data) netif_info(pf, hw, netdev, "interrupt test\n"); wr32(&pf->hw, I40E_PFINT_DYN_CTL0, (I40E_PFINT_DYN_CTL0_INTENA_MASK | - I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK)); + I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK | + I40E_PFINT_DYN_CTL0_ITR_INDX_MASK | + I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK | + I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK)); usleep_range(1000, 2000); *data = (swc_old == pf->sw_int_count); diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 3ebab039fbb3..3913329998bf 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -5565,11 +5565,17 @@ static void i40e_check_hang_subtask(struct i40e_pf *pf) if (!(pf->flags & I40E_FLAG_MSIX_ENABLED)) { wr32(&vsi->back->hw, I40E_PFINT_DYN_CTL0, (I40E_PFINT_DYN_CTL0_INTENA_MASK | - I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK)); + I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK | + I40E_PFINT_DYN_CTL0_ITR_INDX_MASK | + I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK | + I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK)); } else { u16 vec = vsi->base_vector - 1; u32 val = (I40E_PFINT_DYN_CTLN_INTENA_MASK | - I40E_PFINT_DYN_CTLN_SWINT_TRIG_MASK); + I40E_PFINT_DYN_CTLN_SWINT_TRIG_MASK | + I40E_PFINT_DYN_CTLN_ITR_INDX_MASK | + I40E_PFINT_DYN_CTLN_SW_ITR_INDX_ENA_MASK | + I40E_PFINT_DYN_CTLN_SW_ITR_INDX_MASK); for (i = 0; i < vsi->num_q_vectors; i++, vec++) wr32(&vsi->back->hw, I40E_PFINT_DYN_CTLN(vec), val);