From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by dpdk.org (Postfix) with ESMTP id 2C7042B95 for ; Mon, 23 Apr 2018 19:46:01 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 23 Apr 2018 10:46:00 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.49,319,1520924400"; d="scan'208";a="49254713" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.42]) ([10.237.221.42]) by fmsmga001.fm.intel.com with ESMTP; 23 Apr 2018 10:45:58 -0700 To: Qi Zhang , thomas@monjalon.net Cc: konstantin.ananyev@intel.com, dev@dpdk.org, beilei.xing@intel.com, jingjing.wu@intel.com, wenzhuo.lu@intel.com References: <20180212045314.171616-1-qi.z.zhang@intel.com> <20180422115824.105219-1-qi.z.zhang@intel.com> From: Ferruh Yigit Openpgp: preference=signencrypt Autocrypt: addr=ferruh.yigit@intel.com; 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WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 MIME-Version: 1.0 In-Reply-To: <20180422115824.105219-1-qi.z.zhang@intel.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Subject: Re: [dpdk-dev] [PATCH v7 0/5] runtime queue setup X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 23 Apr 2018 17:46:02 -0000 On 4/22/2018 12:58 PM, Qi Zhang wrote: > From: Qi Zhang > > v7: > - update default.ini and i40e.ini. > - rename runtime_queue_setup_capa to dev_capa for generic. > - testpmd queue setup command be moved to "ports" command group. > - remove ring_size and offload from queue setup command in testpmd. > - enable per queue config in testpmd. > - enable queue ring size configure command in testpmd. > - fix couple typo. > > TODO: > queue offload config commmand is not implemented yet, but per queue > configure data structure is already supported in PATCH 3 > > v6: > - fix tx queue state check in rte_eth_rx_queue_setup > - fix error message in testpmd. > > v5: > - fix first tx queue check in i40e. > > v4: > - fix i40e rx/tx funciton conflict handle. > - no need conflict check for first rx/tx queue at runtime setup. > - fix missing offload paramter in testpmd cmdline. > > v3: > - not overload deferred start. > - rename deferred setup to runtime setup. > - remove unecessary testpmd parameters (patch 2/4 of v2) > - add offload support to testpmd queue setup command line > - i40e fix: return fail when required rx/tx function conflict with > exist setup. > > v2: > - enhance comment in rte_ethdev.h > > According to exist implementation,rte_eth_[rx|tx]_queue_setup will > always return fail if device is already started(rte_eth_dev_start). > > This can't satisfied the usage when application want to deferred setup > part of the queues while keep traffic running on those queues already > be setup. > > example: > rte_eth_dev_config(nb_rxq = 2, nb_txq =2) > rte_eth_rx_queue_setup(idx = 0 ...) > rte_eth_rx_queue_setup(idx = 0 ...) > rte_eth_dev_start(...) /* [rx|tx]_burst is ready to start on queue 0 */ > rte_eth_rx_queue_setup(idx=1 ...) /* fail*/ > > Basically this is not a general hardware limitation, because for NIC > like i40e, ixgbe, it is not necessary to stop the whole device before > configure a fresh queue or reconfigure an exist queue with no traffic > on it. > > The patch let etherdev driver expose the capability flag through > rte_eth_dev_info_get when it support deferred queue configuraiton, > then base on these flag, rte_eth_[rx|tx]_queue_setup could decide > continue to setup the queue or just return fail when device already > started. > > > Qi Zhang (1): > net/i40e: enable runtime queue setup > > qi Zhang (4): > ethdev: support runtime queue setup > app/testpmd: add command for queue setup > app/testpmd: enable per queue configure > app/testpmd: enable queue ring size configure Overall looks good to me. There are a few minor comments/questions on individual patches. For series, Reviewed-by: Ferruh Yigit Please feel free to keep the ack for next version of the set based on comments in patches.