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05 April 2024, 19:05:47 UTC
Revision 026ac677414c62550269d53907ea47412ec2bd81 authored by Greg Rose on 17 April 2013, 20:41:35 UTC, committed by David S. Miller on 18 April 2013, 18:52:18 UTC 
ixgbe: Fix a bug in setting VF VLAN via PF
 
The PF driver does not check if the administrator has already set a VF
VLAN via the PF driver before setting the new VLAN.  This results in
the following scenario:

A) Administrator sets VF <n> to VLAN 100
B) Administrator sets VF <x> to VLAN 100
C) Administrator sets VF <n> to VLAN 200
D) The VF <n> driver continues to be able to receive traffic on VLAN
   100 because the VLVFB pool enable bit for that VF was left set
   instead of being cleared as it should be.

This fix ensures that the old VLAN filter for VF <n> is first removed
and the pool bit enable for VF <n> is cleared so that it no longer
receives traffic on VLAN 100.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent f9d40f6
History
Tip revision: 026ac677414c62550269d53907ea47412ec2bd81 authored by Greg Rose on 17 April 2013, 20:41:35 UTC
ixgbe: Fix a bug in setting VF VLAN via PF
Tip revision: 026ac67
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