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authorGreg Rose <gregory.v.rose@intel.com>2012-10-03 00:57:23 +0000
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2012-10-09 02:08:39 -0700
commit91e2b89b04d3f568dc4ec99f242a4a742061e399 (patch)
tree0f2b8c7f595616c7c0213d93a04c49fb3047ad7b /drivers/net/ethernet/intel
parent66eef59f22275002f621ff9d951886b513d011b3 (diff)
downloadlinux-linaro-stable-91e2b89b04d3f568dc4ec99f242a4a742061e399.tar.gz
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 <host> -P <n> 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 <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel')
-rw-r--r--drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c7
1 files changed, 7 insertions, 0 deletions
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 @@ err_tx_ring_allocation:
**/
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;
}