08/06/2022 18:35, Andrew Rybchenko: > From: Spike Du <spi...@nvidia.com> > > A new event RTE_ETH_EVENT_RX_AVAIL_THRESH should be generated by HW > when number of available descriptors in Rx queue goes below the > threshold. > > The threshold is defined as a percentage of an Rx queue size with valid > values from 0 to 99 (inclusive). Zero (default) value disables it. > > There is no capability reporting for the feature. Application should > simply try to set required threshold value and handle result. > > Add testpmd commands to control the threshold: > set port <port_id> rxq <rxq_id> avail_thresh <avail_thresh_num> > > Signed-off-by: Spike Du <spi...@nvidia.com> > Signed-off-by: Andrew Rybchenko <andrew.rybche...@oktetlabs.ru> > --- > v6: > - try to make descriptor shorter and more useful > - refine terminology to use "available descriptors threshold" > everywhere (plural "descriptors") > - fix ethdev API documenation > - define negative return values > - define rules to convert percentage to descriptors number > in drivers > - avoid extra checks in testpmd helper to allow ethdev API > to do its job > - minor fixes in testpmd variables naming > - fix testpmd help to be human oriented > - update testpmd users guide > - add release notes
What a (more than) review work, thanks a lot for this v6! Acked-by: Thomas Monjalon <tho...@monjalon.net> With a few minor arrangements, applied, thanks.
