From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ferruh Yigit <ferruh.yigit@intel.com>
Subject: Re: [PATCH v2 0/4] ethdev: add per-PMD tuning of RxTx
 parmeters
Date: Tue, 27 Mar 2018 19:43:10 +0100
Message-ID: <8f7021b0-ea88-d2a9-c2df-080a6aabc78e@intel.com>
References: <20180321142749.27520-1-remy.horton@intel.com>
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Cc: John McNamara <john.mcnamara@intel.com>, Wenzhuo Lu
 <wenzhuo.lu@intel.com>, Jingjing Wu <jingjing.wu@intel.com>,
 Qi Zhang <qi.z.zhang@intel.com>, Beilei Xing <beilei.xing@intel.com>,
 Shreyansh Jain <shreyansh.jain@nxp.com>,
 Thomas Monjalon <thomas@monjalon.net>
To: Remy Horton <remy.horton@intel.com>, dev@dpdk.org
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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>