RE: ixgbe: macvlan on PF/VF when SRIOV is enabled
On Mon, 2010-05-24 at 10:54 -0700, Rose, Gregory V wrote: We look forward to it and will be happy to provide feedback. I have submitted the patch to make macvlan on PF works when SRIOV is enabled. One thing you can do is allocate VFs and then load the VF driver in your host domain and then assign each of them a macvlan filter. You'd get a similar effect. That's I am trying to make it work for macvlan on VFs in host domain. I need to add VF secondary addresses in address filter, right? Do you have any aggregation performance comparison between multiple macvlans on PF and single macvlan per VF in host domain? I will run some test to figure it out. If you have some data to share that would be great. Thanks Shirley -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
RE: ixgbe: macvlan on PF/VF when SRIOV is enabled
Hello Greg, Thanks for your prompt response. On Sat, 2010-05-22 at 10:53 -0700, Rose, Gregory V wrote: As of 2.6.34 the ixgbe driver does not support multiple queues for macvlan. Support for multiple queues for macvlan will come in a subsequent release. When it might happen? I will double check my test to see whether macvlan was multiple queue or not. Then submitting my experimental patch for review. The VF driver does not support macvlan. Future releases may but there are no immediate plans to support it. When it might be support in future. For performance reason, we are interested in macvlan + VF for multiples VMs. One more question here: Does VF support promiscuous mode? I don't see the flag in ixgbevf driver. Thanks Shirley -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
RE: ixgbe: macvlan on PF/VF when SRIOV is enabled
-Original Message- From: Shirley Ma [mailto:mashi...@us.ibm.com] Sent: Monday, May 24, 2010 10:09 AM To: Rose, Gregory V Cc: Kirsher, Jeffrey T; da...@davemloft.net; kvm@vger.kernel.org; net...@vger.kernel.org; e1000-de...@lists.sourceforge.net Subject: RE: ixgbe: macvlan on PF/VF when SRIOV is enabled Hello Greg, Thanks for your prompt response. On Sat, 2010-05-22 at 10:53 -0700, Rose, Gregory V wrote: As of 2.6.34 the ixgbe driver does not support multiple queues for macvlan. Support for multiple queues for macvlan will come in a subsequent release. When it might happen? Support for multiple queues in the PF driver is in the planning stage right now. Hopefully we'll get it in sooner rather than later but I can't give any solid dates for it. I will double check my test to see whether macvlan was multiple queue or not. Ah, so you just want to set multiple macvlan filters for the PF driver but aren't concerned about directing the traffic to different queues? We haven't tested that in SR-IOV modes of operation but we can have a look at it. Then submitting my experimental patch for review. We look forward to it and will be happy to provide feedback. The VF driver does not support macvlan. Future releases may but there are no immediate plans to support it. When it might be support in future. For performance reason, we are interested in macvlan + VF for multiples VMs. There is a resource contention issue in this case. There are 128 MAC filters available. When VFs are allocated each will use a MAC filter entry. In the case where the maximum number of VFs are allocated (63 in this case) there aren't a whole lot of MAC filters left over to spread across that many VFs. Our view has been that it wouldn't be that much added value to support macvlan in the VFs but if there is a good case for it we'll consider it. One thing you can do is allocate VFs and then load the VF driver in your host domain and then assign each of them a macvlan filter. You'd get a similar effect. One more question here: Does VF support promiscuous mode? I don't see the flag in ixgbevf driver. No, there is no per-VF support for promiscuous mode in the HW as such, however you could set the unicast hash table array to all ones and then set the VFs you want to be in promiscuous mode to accept untagged packets via the VM filtering and offload register at offset 0F000h. However, re-provisioning the UTA for this purpose would preclude using it for the designed purpose. I suggest that you pick up a copy of the developer's manual for the 82599 at the Intel developer's site. http://developer.intel.com/products/ethernet/index.htm?iid=nc+ethernet#s1=alls2=82576EBs3=all - Greg
RE: ixgbe: macvlan on PF/VF when SRIOV is enabled
-Original Message- From: netdev-ow...@vger.kernel.org [mailto:netdev-ow...@vger.kernel.org] On Behalf Of Shirley Ma Sent: Friday, May 21, 2010 1:31 PM To: Kirsher, Jeffrey T Cc: da...@davemloft.net; kvm@vger.kernel.org; net...@vger.kernel.org; e1000-de...@lists.sourceforge.net Subject: ixgbe: macvlan on PF/VF when SRIOV is enabled Hello Jeff, macvlan doesn't work on PF when SRIOV is enabled. Creating macvlan has been successful, but ping (icmp request) goes to VF interface not PF/macvlan even arp entry is correct. I patched ixgbe driver, and macvlan/PF has worked with the patch. But I am not sure whether it is right since I don't have the HW spec. What I did for ixgbe driver was: 1. PF's rar index is 0, VMDQ index is adatper-num_vfs; 2. VF's rar is based on rar_used_count and mc_addr_in_rar_count, VMDQ index is ; 3. PF's secondary addresses is PF's rar index + i, VMDQ index is adapter-num_vfs. As of 2.6.34 the ixgbe driver does not support multiple queues for macvlan. Support for multiple queues for macvlan will come in a subsequent release. Before I submit the patch, I want to understand the right index assignment for both rar index and VMDQ index, when SRIOV enabled: 1. VMDQ index for PF is adapter-num_vfs, or 0? rar index is 0? 2. PF's secondary address rar index is based on rar_used_count/mc_addr_in_rar_count? 2. VF's VPDQ index is based on vf number? 3. VF's rar index is vf + 1, or should be based on rar_used_count? I am also working on macvlan on VF. The question here is whether macvlan on VF should work or not? Looks like ixgbevf secondary addresses are not in receiver address filter, so macvlan on VF doesn't work. The VF driver does not support macvlan. Future releases may but there are no immediate plans to support it. - Greg Rose Intel Corp. Lan Access Division
ixgbe: macvlan on PF/VF when SRIOV is enabled
Hello Jeff, macvlan doesn't work on PF when SRIOV is enabled. Creating macvlan has been successful, but ping (icmp request) goes to VF interface not PF/macvlan even arp entry is correct. I patched ixgbe driver, and macvlan/PF has worked with the patch. But I am not sure whether it is right since I don't have the HW spec. What I did for ixgbe driver was: 1. PF's rar index is 0, VMDQ index is adatper-num_vfs; 2. VF's rar is based on rar_used_count and mc_addr_in_rar_count, VMDQ index is ; 3. PF's secondary addresses is PF's rar index + i, VMDQ index is adapter-num_vfs. Before I submit the patch, I want to understand the right index assignment for both rar index and VMDQ index, when SRIOV enabled: 1. VMDQ index for PF is adapter-num_vfs, or 0? rar index is 0? 2. PF's secondary address rar index is based on rar_used_count/mc_addr_in_rar_count? 2. VF's VPDQ index is based on vf number? 3. VF's rar index is vf + 1, or should be based on rar_used_count? I am also working on macvlan on VF. The question here is whether macvlan on VF should work or not? Looks like ixgbevf secondary addresses are not in receiver address filter, so macvlan on VF doesn't work. Thanks Shirley -- To unsubscribe from this list: send the line unsubscribe kvm in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
