On Mon, 28 Sep 2020 14:03:27 -0500
Honnappa Nagarahalli <honnappa.nagaraha...@arm.com> wrote:
> In the case of S2M queues, the receiver synchronizes with the sender
> (i.e. informs of the packets it has received) using ring->tail.
> Hence, the sender does not need to update last_tail.
>
> In the case of M2S queues, the receiver uses last_tail to
> keep track of the descriptors it has received. The
> sender is not required to update the last_tail. Updating
> the last_tail makes it a shared variable between the
> transmitter and receiver affecting the performance.
>
> Fixes: 09c7e63a71f9 ("net/memif: introduce memory interface PMD")
> Cc: jgraj...@cisco.com
> Cc: sta...@dpdk.org
>
> Signed-off-by: Honnappa Nagarahalli <honnappa.nagaraha...@arm.com>
> Reviewed-by: Phil Yang <phil.y...@arm.com>
> Reviewed-by: Ruifeng Wang <ruifeng.w...@arm.com>
This patch series will conflict with the pending master/slave patchset.
Please let the master/slave renaming go in first.
