Re: [dpdk-dev] Testpmd parameter --enable-lro fails on Mellanox ConnectX5

[Asaf Penso <asafp@mellanox.com>]

Hi, 

For the LRO feature to work in our pmd, please add dv_flow_en=1 as following:
sudo ./testpmd -l 0-15 -w 0000:03:00.1,dv_flow_en=1 -v -- --txq=16 --rxq=16 --nb-cores=15 --enable-lro -i

Can you try this and let us know the result?

Regards,
Asaf Penso

> -----Original Message-----
> From: dev <dev-bounces@dpdk.org> On Behalf Of Asaf Penso
> Sent: Tuesday, October 15, 2019 5:07 PM
> To: Georgios Katsikas <katsikas.gp@gmail.com>; dev@dpdk.org
> Cc: Tom Barbette <barbette@kth.se>
> Subject: Re: [dpdk-dev] Testpmd parameter --enable-lro fails on Mellanox
> ConnectX5
> 
> Hello Georgios,
> 
> Thanks for your mail!
> We'll have a deeper look internally and will contact you about our results.
> 
> Regards,
> Asaf Penso
> 
> > -----Original Message-----
> > From: dev <dev-bounces@dpdk.org> On Behalf Of Georgios Katsikas
> > Sent: Tuesday, October 15, 2019 9:06 AM
> > To: dev@dpdk.org
> > Cc: Tom Barbette <barbette@kth.se>
> > Subject: [dpdk-dev] Testpmd parameter --enable-lro fails on Mellanox
> > ConnectX5
> >
> > Hi all,
> >
> > In the latest features of the MLX5 PMD (i.e., DPDK 19.08), there is LRO
> > hardware support.
> > However, I cannot make it work with our dual port 100GbE Mellanox
> > ConnectX5
> > (MT27800) card.
> >
> > Let me first describe the configuration of my testbed: First,I upgraded
> > OFED to the latest 4.7-1.0.0 with firmware version 16.26.1040
> > (MT_0000000008) and installed the latest MFT (4.13) to enable DevX
> > according to the instructions here
> >
> <https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdoc.
> >
> dpdk.org%2Fguides%2Fnics%2Fmlx5.html&amp;data=02%7C01%7Casafp%40
> >
> mellanox.com%7C18e034c229d64911ff7b08d75135d96a%7Ca652971c7d2e4d9
> >
> ba6a4d149256f461b%7C0%7C1%7C637067164036442822&amp;sdata=PfV3NV
> > Nj3t0Bw3CiWxRIiVgats8Ma1b755qY4UIXXo0%3D&amp;reserved=0>:
> >
> > mlxconfig -d <device> set UCTX_EN=1
> >
> > My OS is Ubuntu server 18.04 with kernel 4.15.0-65-generic. I also tested
> > on another server with the same distro but more recent kernel (5.15),
> > without any luck.
> >
> > To test LRO, I simply use testpmd as follows:
> >
> > sudo ./testpmd -l 0-15 -w 0000:03:00.1 -v -- --txq=16 --rxq=16
> > --nb-cores=15 --enable-lro -i
> >
> > Th output I get is:
> >
> > Configuring Port 0 (socket 0)
> > net_mlx5: Failed to create RQ using DevX
> > net_mlx5: port 0 Rx queue 8 RQ creation failure
> > net_mlx5: port 0 Rx queue allocation failed: Cannot allocate memory
> > Fail to start port 0
> > Please stop the ports first
> > Done
> >
> > Reducing the number of queues does not solve the problem. Specifically, if
> > I ask for 1 rX and 1 Tx queue, testpmd  fails without an error from the mlx
> > driver:
> >
> > Configuring Port 0 (socket 0)
> > Fail to start port 0
> > Please stop the ports first
> > Done
> >
> > I would appreciate your help on this issue.
> >
> > Best regards,
> > Georgios