On 09/08/2017 10:56 AM, Loftus, Ciara wrote: >> Hi, >> >> I have compiled and built ovs-dpdk using DPDK v17.08 and OVS v2.8.0. The >> NIC that I am using is Mellanox ConnectX-3 Pro, which is a dual port 10G >> NIC. The problem with this NIC is that it provides only one PCI address for >> both the 10G ports. >> >> So when I am trying to add the two DPDK ports to my br0 bridge >> >> # ovs-vsctl --no-wait add-port br0 dpdk0 -- set Interface dpdk0 type=dpdk >> options:dpdk-devargs=0002:01:00.0 >> >> # ovs-vsctl --no-wait add-port br0 dpdk1 -- set Interface dpdk1 type=dpdk >> options:dpdk-devargs=0002:01:00.0 >> >> The port dpdk1 is added successfully and able to transfer data, but adding >> dpdk0 to br0 fails: >> >> 2017-09-06T14:19:20Z|00045|netdev_dpdk|INFO|Port 0: e4:1d:2d:4f:78:60 >> 2017-09-06T14:19:20Z|00046|bridge|INFO|bridge br0: added interface dpdk1 >> on >> port 1 >> 2017-09-06T14:19:20Z|00047|bridge|INFO|bridge br0: added interface br0 >> on >> port 65534 >> 2017-09-06T14:19:20Z|00048|dpif_netlink|WARN|Generic Netlink family >> 'ovs_datapath' does not exist. The Open vSwitch kernel module is probably >> not loaded. >> 2017-09-06T14:19:20Z|00049|netdev_dpdk|WARN|'dpdk0' is trying to use >> device >> '0002:01:00.0' which is already in use by 'dpdk1' >> 2017-09-06T14:19:20Z|00050|netdev|WARN|dpdk0: could not set >> configuration >> (Address already in use) >> 2017-09-06T14:19:20Z|00051|bridge|INFO|bridge br0: using datapath ID >> 0000e41d2d4f7860 >> >> >> With OVS v2.6.1 I never had this problem as dpdk-devargs was not >> mandatory >> and just specifying port name was enough to add that port to bridge. >> >> Is there a way to add port both ports to bridge ? > > It seems the DPDK function rte_eth_dev_get_port_by_name() will always return > the port ID of the first port on your NIC, when you specify the single PCI > address and that's where the problem is. There doesn't seem to be a way > currently to indicate to the calling application that in fact two (or more) > port IDs are associated with the one PCI address. > > I am cc-ing DPDK users mailing list for hopefully some input. Are there any > plans for the rte_eth_dev_get_port_by_name function to be compatible with > NICs with multiple ports under the same PCI address? >
Hi Adrien/Nelio, Is this something you can answer? We're wondering how to handle this in OVS and whether a temporary or long term solution is needed. The original thread started here: https://mail.openvswitch.org/pipermail/ovs-dev/2017-September/338418.html thanks, Kevin. > Thanks, > Ciara > >> >> Thanks, >> Devendra >> _______________________________________________ >> dev mailing list >> d...@openvswitch.org >> https://mail.openvswitch.org/mailman/listinfo/ovs-dev _______________________________________________ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev
