[dpdk-dev] Query for support hw gro offload

[dpdk-dev] Query for support hw gro offload

[fengchengwen]

Hello Ferruh,

1. Current dpdk framework provide software GRO feature, but do not
support hardware GRO offload. and it now can only process tcp4 and
vxland_tcp4 streams.
2. HNS3's hardware 1620(ARM SoC) support hardware GRO offload, it
can process tcp4 and tcp6 streams.
3. linux kernerl driver support hardware GRO feature already (named
rx-gro-hw).

so my questions:
1. Can dpdk framework have plan to support hardware GRO offload?
2. If we make this patch, could it upstream?

Regards,
Chengwen

Re: [dpdk-dev] Query for support hw gro offload

[Ferruh Yigit]

On 2/7/2020 10:39 AM, fengchengwen wrote:
> Hello Ferruh,
> 
> 1. Current dpdk framework provide software GRO feature, but do not
> support hardware GRO offload. and it now can only process tcp4 and
> vxland_tcp4 streams.
> 2. HNS3's hardware 1620(ARM SoC) support hardware GRO offload, it
> can process tcp4 and tcp6 streams.
> 3. linux kernerl driver support hardware GRO feature already (named
> rx-gro-hw).
> 
> so my questions:
> 1. Can dpdk framework have plan to support hardware GRO offload?
> 2. If we make this patch, could it upstream?

Hi Chengwen,

cc'ed ethdev maintainers.

Can't you use LRO [1] for HW GRO offload?

[1]
http://lxr.dpdk.org/dpdk/v19.11/source/doc/guides/nics/features.rst#L193