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i40evf: Add support for netpoll

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Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Alexander Duyck 2015-09-24 09:04:38 -07:00 committed by Jeff Kirsher
parent 8b65035905
commit 7709b4c1ff
1 changed files with 26 additions and 0 deletions
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26
drivers/net/ethernet/intel/i40evf/i40evf_main.c
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@ -444,6 +444,29 @@ static int i40evf_map_rings_to_vectors(struct i40evf_adapter *adapter)
return err;
}
#ifdef CONFIG_NET_POLL_CONTROLLER
/**
* i40evf_netpoll - A Polling 'interrupt' handler
* @netdev: network interface device structure
*
* This is used by netconsole to send skbs without having to re-enable
* interrupts. It's not called while the normal interrupt routine is executing.
**/
static void i40evf_netpoll(struct net_device *netdev)
{
struct i40evf_adapter *adapter = netdev_priv(netdev);
int q_vectors = adapter->num_msix_vectors - NONQ_VECS;
int i;
/* if interface is down do nothing */
if (test_bit(__I40E_DOWN, &adapter->vsi.state))
return;
for (i = 0; i < q_vectors; i++)
i40evf_msix_clean_rings(0, adapter->q_vector[i]);
}
#endif
/**
* i40evf_request_traffic_irqs - Initialize MSI-X interrupts
* @adapter: board private structure
@ -2049,6 +2072,9 @@ static const struct net_device_ops i40evf_netdev_ops = {
.ndo_tx_timeout = i40evf_tx_timeout,
.ndo_vlan_rx_add_vid = i40evf_vlan_rx_add_vid,
.ndo_vlan_rx_kill_vid = i40evf_vlan_rx_kill_vid,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = i40evf_netpoll,
#endif
};
/**