Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 91e2b89b authored by Greg Rose's avatar Greg Rose Committed by Jeff Kirsher
Browse files

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: default avatarGreg Rose <gregory.v.rose@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent 66eef59f

drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c

+7 −0
Original line number Diff line number Diff line
@@ -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;

}