[dpdk-dev] [PATCH v3 1/6] eal: add power management intrinsics

Liang, Ma liang.j.ma at intel.com
Wed Sep 16 18:34:19 CEST 2020

On 04 Sep 11:42, Stephen Hemminger wrote:

we have discussed with arm developer in the past.
Please ref https://patches.dpdk.org/patch/70662/
There was no objection, in my opinoin.
Also the API we proposed has experimental tag, other vendor still can change it.

For the ethdev internal ops we introduced should work with any NIC use ring descriptor
writeback mechansim. But we lack the internal sight of Mellanox or Broadcom NIC. 

AF_XDP PMD and virtio-net is under investigation. 

I hope above explaination addressed your concern. 

> Before this is merged, please work with Arm maintainers to have a version that
> works on Arm 64 as well. Don't think this should be merged unless the two major
> platforms supported by DPDK can work with it.
> Also, not sure if this mechanism can work with other drivers. You need to
> work with other vendors to show that the same infrastructure can work with
> their hardware. Once again, I don't think this can go in if it only can
> work on Intel.  It needs to work on Broadcom, Mellanox to be useful.
> Will it work in a VM? Will it work with virtio or vmxnet3?
> Having a single vendor solution is a non-starter for me.
> They don't all have to be there to get it merged, but if the design only
> works on single platform then it is not helpful.

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