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iavf: Restore VLAN filters after link down

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Restore VLAN filters after the link is brought down, and up - since all
filters are deleted from HW during the netdev link down routine.

Fixes: ed1f5b58ea ("i40evf: remove VLAN filters on close")
Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Tested-by: George Kuruvinakunnel <george.kuruvinakunnel@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Akeem G Abodunrin 2021-06-04 09:53:27 -07:00 committed by Tony Nguyen
parent 9a6e9e483a
commit 4293014230
2 changed files with 31 additions and 5 deletions
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1
drivers/net/ethernet/intel/iavf/iavf.h
View File

@ -39,6 +39,7 @@
#include "iavf_txrx.h"
#include "iavf_fdir.h"
#include "iavf_adv_rss.h"
#include <linux/bitmap.h>
#define DEFAULT_DEBUG_LEVEL_SHIFT 3
#define PFX "iavf: "

35
drivers/net/ethernet/intel/iavf/iavf_main.c
View File

@ -696,6 +696,23 @@ static void iavf_del_vlan(struct iavf_adapter *adapter, u16 vlan)
spin_unlock_bh(&adapter->mac_vlan_list_lock);
}
/**
* iavf_restore_filters
* @adapter: board private structure
*
* Restore existing non MAC filters when VF netdev comes back up
**/
static void iavf_restore_filters(struct iavf_adapter *adapter)
{
/* re-add all VLAN filters */
if (VLAN_ALLOWED(adapter)) {
u16 vid;
for_each_set_bit(vid, adapter->vsi.active_vlans, VLAN_N_VID)
iavf_add_vlan(adapter, vid);
}
}
/**
* iavf_vlan_rx_add_vid - Add a VLAN filter to a device
* @netdev: network device struct
@ -709,8 +726,11 @@ static int iavf_vlan_rx_add_vid(struct net_device *netdev,
if (!VLAN_ALLOWED(adapter))
return -EIO;
if (iavf_add_vlan(adapter, vid) == NULL)
return -ENOMEM;
set_bit(vid, adapter->vsi.active_vlans);
return 0;
}
@ -725,11 +745,13 @@ static int iavf_vlan_rx_kill_vid(struct net_device *netdev,
{
struct iavf_adapter *adapter = netdev_priv(netdev);
if (VLAN_ALLOWED(adapter)) {
iavf_del_vlan(adapter, vid);
return 0;
}
return -EIO;
if (!VLAN_ALLOWED(adapter))
return -EIO;
iavf_del_vlan(adapter, vid);
clear_bit(vid, adapter->vsi.active_vlans);
return 0;
}
/**
@ -3309,6 +3331,9 @@ static int iavf_open(struct net_device *netdev)
spin_unlock_bh(&adapter->mac_vlan_list_lock);
/* Restore VLAN filters that were removed with IFF_DOWN */
iavf_restore_filters(adapter);
iavf_configure(adapter);
iavf_up_complete(adapter);