Hi Paul, No I didn't spot that.
I guess my only option now is 10gb card that supports it. Thanks. On Wed, 13 Dec 2017, 12:35 Paul Emmerich, <[email protected]> wrote: > Did you consult the datasheet? It says that the VF only supports one queue. > > Paul > > > Am 12.12.2017 um 13:58 schrieb .. <[email protected]>: > > > > I assume my message was ignored due to it not being related to dpdk > > software? > > > > > > On 11 December 2017 at 10:14, .. <[email protected]> wrote: > > > >> Hi, > >> > >> I have an intel I350-T2 which I use for SR-IOV, however, I am hitting > some > >> rx_dropped on the card when I start increasing traffic. (I have got more > >> with the same software out of a identical bare metal system) > >> > >> I am using the Intel igb driver on Centos 7.2 (downloaded from Intel not > >> the driver installed with Centos), so the RSS parameters amongst others > are > >> availbe to me > >> > >> This then led me to investigate the interrupts on the tx rx ring buffers > >> and I noticed that the interface (vfs enabled) only had on tx/rx queue. > Its > >> distributed between This is on the KVM Host > >> > >> CPU0 CPU1 CPU2 CPU3 CPU4 > >> CPU5 CPU6 CPU7 CPU8 > >> 100: 1 33 137 0 0 > >> 0 0 0 0 IR-PCI-MSI-edge ens2f1 > >> 101: 2224 0 0 6309 178807 > >> 0 0 0 0 IR-PCI-MSI-edge > ens2f1-TxRx-0 > >> > >> Looking at my standard nic ethernet ports I see 1 rx and 4 rx queues > >> > >> On the VM I only get one tx one rx queue ( I know all the interrupts are > >> only using CPU0) but that is defined in our builds. > >> > >> egrep "CPU|ens11" /proc/interrupts > >> CPU0 CPU1 CPU2 CPU3 CPU4 > >> CPU5 CPU6 CPU7 > >> 34: 715885552 0 0 0 0 > >> 0 0 0 0 PCI-MSI-edge > ens11-tx-0 > >> 35: 559402399 0 0 0 0 > >> 0 0 0 0 PCI-MSI-edge > ens11-rx-0 > >> > >> I activated RSS in my card, and can set if, however if I use the param > >> max_vfs=n then it defaults back to to 1 rx 1 tx queue per nic port > >> > >> [ 392.833410] igb 0000:07:00.0: Using MSI-X interrupts. 1 rx queue(s), > 1 > >> tx queue(s) > >> [ 393.035408] igb 0000:07:00.1: Using MSI-X interrupts. 1 rx queue(s), > 1 > >> tx queue(s) > >> > >> I have been reading some of the dpdk older posts and see that VF RSS is > >> implemented in some cards, does anybody know if its available in this > card > >> (from reading it only seemed the 10GB cards) > >> > >> One of my plans aside from trying to create more RSS per VM is to add > more > >> CPUS to the VM that are not isolated so that the rx and tx queues can > >> distribute their load a bit to see if this helps. > >> > >> Also is it worth investigating the VMDq options, however I understand > this > >> to be less useful than SR-IOV which works well for me with KVM. > >> > >> > >> Thanks in advance, > >> > >> Rolando > >> > > -- > Chair of Network Architectures and Services > Department of Informatics > Technical University of Munich > Boltzmannstr. 3 > 85748 Garching bei München, Germany > > > > >
