From 504b0fdf92bfb28b88b79fe3bf356b840b2e555c Mon Sep 17 00:00:00 2001 From: Jacob Keller Date: Thu, 29 Oct 2015 13:43:40 -0700 Subject: fm10k: initialize xps at driver load Similar to ixgbe and i40e, initialize XPS on driver load so that we can take advantage of this kernel feature. Signed-off-by: Jacob Keller Reviewed-by: Bruce Allan Tested-by: Krishneil Singh Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/fm10k/fm10k_pci.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) (limited to 'drivers/net/ethernet/intel/fm10k/fm10k_pci.c') diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c index e820b5f34eeb..020f6dce4154 100644 --- a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c +++ b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c @@ -601,6 +601,13 @@ static void fm10k_configure_tx_ring(struct fm10k_intfc *interface, fm10k_write_reg(hw, FM10K_PFVTCTL(reg_idx), FM10K_PFVTCTL_FTAG_DESC_ENABLE); + /* Initialize XPS */ + if (!test_and_set_bit(__FM10K_TX_XPS_INIT_DONE, &ring->state) && + ring->q_vector) + netif_set_xps_queue(ring->netdev, + &ring->q_vector->affinity_mask, + ring->queue_index); + /* enable queue */ fm10k_write_reg(hw, FM10K_TXDCTL(reg_idx), txdctl); } @@ -1488,8 +1495,10 @@ void fm10k_qv_free_irq(struct fm10k_intfc *interface) if (!q_vector->tx.count && !q_vector->rx.count) continue; - /* disable interrupts */ + /* clear the affinity_mask in the IRQ descriptor */ + irq_set_affinity_hint(entry->vector, NULL); + /* disable interrupts */ writel(FM10K_ITR_MASK_SET, q_vector->itr); free_irq(entry->vector, q_vector); @@ -1547,6 +1556,9 @@ int fm10k_qv_request_irq(struct fm10k_intfc *interface) goto err_out; } + /* assign the mask for this irq */ + irq_set_affinity_hint(entry->vector, &q_vector->affinity_mask); + /* Enable q_vector */ writel(FM10K_ITR_ENABLE, q_vector->itr); @@ -1567,8 +1579,10 @@ err_out: if (!q_vector->tx.count && !q_vector->rx.count) continue; - /* disable interrupts */ + /* clear the affinity_mask in the IRQ descriptor */ + irq_set_affinity_hint(entry->vector, NULL); + /* disable interrupts */ writel(FM10K_ITR_MASK_SET, q_vector->itr); free_irq(entry->vector, q_vector); -- cgit v1.2.3