提交 91e2b89b 编写于 作者: G Greg Rose 提交者: Jeff Kirsher

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: NGreg Rose <gregory.v.rose@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
上级 66eef59f
......@@ -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;
}
......
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