Re: [dpdk-dev] [PATCH v2 0/4] ethdev: add per-PMD tuning of RxTx parmeters

[Thomas Monjalon <thomas@monjalon.net>]

30/03/2018 12:34, Ferruh Yigit:
> On 3/27/2018 7:43 PM, Ferruh Yigit wrote:
> > On 3/21/2018 2:27 PM, Remy Horton wrote:
> >> The optimal values of several transmission & reception related parameters,
> >> such as burst sizes, descriptor ring sizes, and number of queues, varies
> >> between different network interface devices. This patchset allows individual
> >> PMDs to specify their preferred parameter values, and if so indicated by an
> >> application, for them to be used automatically by the ethdev layer.
> >>
> >> rte_eth_dev_configure() has been changed so that specifying zero for both
> >> nb_rx_q AND nb_tx_q causes it to use driver preferred values, and if these
> >> are not available, falls back to EAL defaults. Setting one (but not both)
> >> to zero does not cause the use of defaults, as having one of them zeroed is
> >> a valid setup.
> >>
> >> This RFC/V1 includes per-PMD values for e1000 and i40e but it is expected
> >> that subsequent patchsets will cover other PMDs. A deprecation notice
> >> covering the API/ABI change is in place.
> >>
> >>
> >> Changes in v2:
> >> * Rebased to 
> >> * Removed fallback values from rte_eth_dev_info_get()
> >> * Added fallback values to rte_rte_[rt]x_queue_setup()
> >> * Added fallback values to rte_eth_dev_configure()
> >> * Corrected comment
> >> * Removed deprecation notice
> >> * Split RX and Tx into seperate structures
> >> * Changed parameter names
> >>
> >>
> >> Remy Horton (4):
> >>   ethdev: add support for PMD-tuned Tx/Rx parameters
> >>   net/e1000: add TxRx tuning parameters
> >>   net/i40e: add TxRx tuning parameters
> >>   testpmd: make use of per-PMD TxRx parameters
> > 
> > Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
> 
> Series applied to dpdk-next-net/master, thanks.

I prefer not pulling this series in master and give a chance to have
a more complete v3 for testpmd and examples.