netdev - RE: [Intel-wired-lan] [next PATCH 08/11] ixgbe: Add support for VLAN promiscuous with SR-IOV

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Date:	Thu, 10 Dec 2015 22:53:27 +0000
From:	"Schmitt, Phillip J" <phillip.j.schmitt@...el.com>
To:	Alexander Duyck <aduyck@...antis.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>
Subject: RE: [Intel-wired-lan] [next PATCH 08/11] ixgbe: Add support for
 VLAN promiscuous with SR-IOV



> -----Original Message-----
> From: Intel-wired-lan [mailto:intel-wired-lan-bounces@...ts.osuosl.org] On
> Behalf Of Alexander Duyck
> Sent: Monday, November 02, 2015 5:10 PM
> To: netdev@...r.kernel.org; intel-wired-lan@...ts.osuosl.org
> Subject: [Intel-wired-lan] [next PATCH 08/11] ixgbe: Add support for VLAN
> promiscuous with SR-IOV
> 
> This patch adds support for VLAN promiscuous with SR-IOV enabled.
> 
> The code prior to this patch was only adding the PF to VLANs that the VF had
> added.  As such enabling promiscuous mode would actually not add any
> additional VLAN filters so visibility was limited.  This lead to a number of issues
> as the bridge and OVS would expect us to accept all VLAN tagged packets when
> promiscuous mode was enabled, and instead we would filter out most if not all
> depending on the configuration of the PF.
> 
> With this patch what we do is set all the bits in the VFTA and all of the VLVF bits
> associated with the pool belonging to the PF.  By doing this the PF is guaranteed
> to receive all VLAN tagged traffic associated with the RAR filters assigned to the
> PF.  In addition we will clean up those same bits in the event of promiscuous
> mode being disabled.
> 
> Signed-off-by: Alexander Duyck <aduyck@...antis.com>

Tested-by: Phil Schmitt <phillip.j.schmitt@...el.com>
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