Re: [dpdk-users] Support for RSS UDP hash types on vmxnet3

[madhukar mythri <madhukar.mythri@gmail.com>]

Hi Eduard,

Thanks very much for the suggestion, now with "ethernetX.usdpRSS=1"(in vmx
file) RSS working well on my guest VM (with vmxnet3 PMD of DPDK-17.11).
i'm using ESXi-6.7 update-1, but, by default RSS did not worked. By
enabling the above suggested option only, i could see the UDP packets were
load-balancing very well on multi-queues.

On top of this, for better performance do we need to enable any more extra
flags in "vmx" file ?

Thanks,
Madhukar.



On Tue, Apr 2, 2019 at 12:09 AM Eduard Serra Miralles <eserra@vmware.com>
wrote:

> 6.5 and prior requires to set a specific flag on VM vmx file to enable
> RSS, apart from requesting it inside:
>
>
>
> // On vmx file
>
> ethernet1.udpRSS = “1”
>
>
>
> 6.7 and onwards, with newer virtual hw version, the guest will handle that
> on its own with no required intervention from the hypervisor.
>
>
> ------------------------------
> *From:* users <users-bounces@dpdk.org> on behalf of madhukar mythri <
> madhukar.mythri@gmail.com>
> *Sent:* Monday, April 1, 2019 7:21:11 AM
> *To:* users@dpdk.org
> *Subject:* [dpdk-users] Support for RSS UDP hash types on vmxnet3
>
> Hi,
>
> As per the documentation of "Poll Mode Driver for Paravirtual vmxnet3 NIC"
> in NIC driver guides.
>
> vmxnet3 Features and Limitations of VMXNET3 PMD are as follows:
> -----------------------
> RSS based load balancing between queues - SUPPORTED
> ------------------------
>
> But, i'm seeing all the UDP packets are landing on only single queue, even
> after enabling RSS.
>
> Does anybody faced similar issue and any fix available on this issue ?
>
> Thanks,
> Madhukar.
>