From 91e2b89b04d3f568dc4ec99f242a4a742061e399 Mon Sep 17 00:00:00 2001 From: Greg Rose Date: Wed, 3 Oct 2012 00:57:23 +0000 Subject: [PATCH] ixgbevf: Set the netdev number of Tx queues The driver was not setting the number of real Tx queues in the net_device structure. This caused some serious issues such as Tx hangs and extremely poor performance with some usages of the driver. The issue is best observed by running: iperf -c -P Where n is greater than one. The greater the value of n the more likely the problem is to show up. Signed-off-by: Greg Rose Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c index 0ee9bd4819f4..de1ad506665d 100644 --- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c +++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c @@ -1747,6 +1747,7 @@ static int ixgbevf_alloc_queues(struct ixgbevf_adapter *adapter) **/ static int ixgbevf_set_interrupt_capability(struct ixgbevf_adapter *adapter) { + struct net_device *netdev = adapter->netdev; int err = 0; int vector, v_budget; @@ -1775,6 +1776,12 @@ static int ixgbevf_set_interrupt_capability(struct ixgbevf_adapter *adapter) ixgbevf_acquire_msix_vectors(adapter, v_budget); + err = netif_set_real_num_tx_queues(netdev, adapter->num_tx_queues); + if (err) + goto out; + + err = netif_set_real_num_rx_queues(netdev, adapter->num_rx_queues); + out: return err; }