[dpdk-dev] [PATCH v12 0/5] eal: add WC store functions

[David Marchand]

On Wed, Sep 23, 2020 at 4:23 PM Radu Nicolau <radu.nicolau at intel.com> wrote:
>
> Implement 2 new functions that will enable write combining
> stores depending on architecture. The functions are provided
> as a generic stub and a x86 specific implementation.
>
> The reason to implement these functions is to improve performance
> by reducing the overhead associated with regular mmio writes when
> updating the hardware queue tails and doorbells.

For the record, on which CPU/platform was this tested and how much of
an improvement did you get with this?

I did not see review/ack tokens from other arch maintainers, but since
it has been on the ml for a while, I guess I can proceed as is.


>
> With this patch set the I40E, ICE, IXGBE and QAT PMDs are updated to
> use the write combining store functions with other PMDs to follow.

This series will go through the main repo: copying Ferruh and Akhil for info.


-- 
David Marchand