On 11/13/2012 04:48 PM, Vick, Matthew wrote: > I took a look at this with Carolyn and I believe what you're seeing > is the expected behavior. In these older kernels, there was no > ethtool option to turn on and off VLAN stripping on the fly. If you > look, the get_flags operation just calls ethtool_op_get_flags, which > doesn't recognize ETH_FLAG_RXVLAN.
Okay, fair enough. I realize it's an older kernel. :) > If you're seeing issues with the functionality of VLANs with igb > alone, let us know and we'll take a look at it. What about VLANs when mixing igb/igbvf? This shouldn't involve ethtool options. It appears that the design intent is that the hardware strips off the VLAN tag but passes the information through so that it can be passed up the stack on the receiver, but this doesn't seem to be working. With the older kernel but the latest igb/igbvf drivers we're having issues as follows: We can send vlan-tagged packets from a different system and they are received in the VMs just fine. However, if we try to send vlan-tagged packets from one VF to the other it appears that the hardware is stripping the VLAN tag information and not passing it through to the other VF. As per my previous emails I can edit the driver to force vlan stripping to be disabled and it seems to let it work in certain circumstances (and I could probably get it working reliably with a bit of debugging), but I shouldn't need to edit the driver to make it work. I'd appreciate it if you could try the following scenario: host using PF, two VMs each using a different VF from that PF. Everyone is using the same VLAN with hardware stripping enabled. Then test connectivity between the two VMs, between host and VM, and from the outside world (on the same VLAN) to both host and a VM. Thanks, Chris ------------------------------------------------------------------------------ Monitor your physical, virtual and cloud infrastructure from a single web console. Get in-depth insight into apps, servers, databases, vmware, SAP, cloud infrastructure, etc. Download 30-day Free Trial. Pricing starts from $795 for 25 servers or applications! http://p.sf.net/sfu/zoho_dev2dev_nov _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
