SR-IOV dropping packets when *other* VFs are configured

Ethernet Products

Determine ramifications of Intel® Ethernet products and technologies

SR-IOV dropping packets when other VFs are configured

1,329 Views

Hi,

I've been doing some testing using an HP Ethernet 1Gb 2p 361T Adapter in a DL380p Gen8. The software used is CentOS 6.4 and igb 4.3.0 and igbvf 2.3.2 Intel drivers. I've noticed that when a VF NIC is under load (typically reading multicast at 80-110 MB/s), the packets can get dropped when one or more of the following are performed against different VFs on the same card:

ethtool -G
vconfig
ip link set up dev eth1.NNN
python sock.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP,mreq) call

Is this to be expected?

Thanks in advance,

== k+ ==

Link Copied

0 Replies

Community support is provided during standard business hours (Monday to Friday 7AM - 5PM PST). Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.