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> > On Mon, 28 Sep 2020 14:03:27 -0500 > Honnappa Nagarahalli <[email protected]> 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: [email protected] > > Cc: [email protected] > > > > Signed-off-by: Honnappa Nagarahalli <[email protected]> > > Reviewed-by: Phil Yang <[email protected]> > > Reviewed-by: Ruifeng Wang <[email protected]> > > This patch series will conflict with the pending master/slave patchset. > Please let the master/slave renaming go in first. +1, review can go on.
