From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wi0-f177.google.com (mail-wi0-f177.google.com [209.85.212.177]) by dpdk.org (Postfix) with ESMTP id F1BE05A76 for ; Wed, 11 Mar 2015 16:56:44 +0100 (CET) Received: by wiwl15 with SMTP id l15so13029172wiw.0 for ; Wed, 11 Mar 2015 08:56:44 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:message-id:date:from:user-agent:mime-version:to :subject:references:in-reply-to:content-type :content-transfer-encoding; bh=KG63GQt7c0wjpixZ7w5DddjVh1ozNJhBZtnbUy96h5U=; b=F4URun0q1ZGQFqcC4Jzx2J7rrOJKIkZi887RVhxNzfMSmfyykAk8SiwvXfzjCAuz+8 Vtc5D6lESn+LuewXCdEDAAhp+BzhCheYgapzrhpvGL3+ycF7pd8+f6gkAsMX0ZjAqGz8 pFq8HaIUOHqtKh9gW2EZIs/2lEoh887HBiobj7ZgOhMuXrAB3T9CGeGbZ0/CdijmgF7L Vw/0fqRtPWziWGUtsbCeR2sXqdRvkJMm/tPhbUorB+ztdYDTcDPdslh4QMHCHOWe/wpC jkDIOcscsSb7v9oon26QJPLzEeAZ/17rwwDpNNNgn8dvY1lDt8M66TVCBFqcFD4YcN1H TcNg== X-Gm-Message-State: ALoCoQlDmoVcVId4IpYpM8Qp1JU03jO2r21van7sghVzyNGVc/kCOhSCsgt7YCDXV1OdqHKk5qpu X-Received: by 10.194.92.169 with SMTP id cn9mr562326wjb.61.1426089404870; Wed, 11 Mar 2015 08:56:44 -0700 (PDT) Received: from [10.0.0.2] (bzq-109-65-117-109.red.bezeqint.net. [109.65.117.109]) by mx.google.com with ESMTPSA id r15sm2001147wiw.12.2015.03.11.08.56.43 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 11 Mar 2015 08:56:44 -0700 (PDT) Message-ID: <550065BB.8090101@cloudius-systems.com> Date: Wed, 11 Mar 2015 17:56:43 +0200 From: Vlad Zolotarov User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0 MIME-Version: 1.0 To: "Ananyev, Konstantin" , "dev@dpdk.org" References: <1426015891-20450-1-git-send-email-vladz@cloudius-systems.com> <2601191342CEEE43887BDE71AB977258213F57FF@irsmsx105.ger.corp.intel.com> In-Reply-To: <2601191342CEEE43887BDE71AB977258213F57FF@irsmsx105.ger.corp.intel.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [dpdk-dev] [PATCH v7 0/3]: Add LRO support to ixgbe PMD X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 11 Mar 2015 15:56:45 -0000 On 03/11/15 16:13, Ananyev, Konstantin wrote: > >> -----Original Message----- >> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Vlad Zolotarov >> Sent: Tuesday, March 10, 2015 7:31 PM >> To: dev@dpdk.org >> Subject: [dpdk-dev] [PATCH v7 0/3]: Add LRO support to ixgbe PMD >> >> This series adds the missing flow for enabling the LRO in the ethdev and >> adds a support for this feature in the ixgbe PMD. There is a big hope that this >> initiative is going to be picked up by some Intel developer that would add the LRO support >> to other Intel PMDs. >> >> The series starts with some cleanup work in the code the final patch (the actual adding of >> the LRO support) is going to touch/use/change. There are still quite a few issues in the ixgbe >> PMD code left but they have to be a matter of a different series and I've left a few "TODO" >> remarks in the code. >> >> The LRO ("RSC" in Intel's context) PMD completion handling code follows the same design as the >> corresponding Linux and FreeBSD implementation: pass the aggregation's cluster HEAD buffer to >> the NEXTP entry of the software ring till EOP is met. >> >> HW configuration follows the corresponding specs: this feature is supported only by x540 and >> 82599 PF devices. >> >> The feature has been tested with seastar TCP stack with the following configuration on Tx side: >> - MTU: 400B >> - 100 concurrent TCP connections. >> >> The results were: >> - Without LRO: total throughput: 0.12Gbps, coefficient of variance: 1.41% >> - With LRO: total throughput: 8.21Gbps, coefficient of variance: 0.59% >> >> This is an almost factor 80 improvement. >> >> New in v7: >> - Free not-yet-completed RSC aggregations in rte_eth_dev_stop() flow. >> - Fixed rx_bulk_alloc_allowed and rx_vec_allowed initialization: >> - Don't set them to FALSE in rte_eth_dev_stop() flow - the following >> rte_eth_dev_start() will need them. >> - Reset them to TRUE in rte_eth_dev_configure() and not in a probe() flow. >> This will ensure the proper behaviour if port is re-configured. > That changes probably should be part of another patch you submitted: > [PATCH v2 3/3] ixgbe: Unify the rx_pkt_bulk callbackinitialization > ? > Konstantin Yeah.... ;) > >> - Reset the sw_ring[].mbuf entry in a bulk allocation case. >> This is needed for ixgbe_rx_queue_release_mbufs(). >> - _recv_pkts_lro(): added the missing memory barrier before RDT update in a >> non-bulk allocation case. >> - Don't allow RSC when device is configured in an SR-IOV mode. >> >> New in v6: >> - Fix of the typo in the "bug fixes" series that broke the compilation caused a >> minor change in this follow-up series. >> >> New in v5: >> - Split the series into "bug fixes" and "all the rest" so that the former could be >> integrated into a 2.0 release. >> - Put the RTE_ETHDEV_HAS_LRO_SUPPORT definition at the beginning of rte_ethdev.h. >> - Removed the "TODO: Remove me" comment near RTE_ETHDEV_HAS_LRO_SUPPORT. >> >> New in v4: >> - Remove CONFIG_RTE_ETHDEV_LRO_SUPPORT from config/common_linuxapp. >> - Define RTE_ETHDEV_HAS_LRO_SUPPORT in rte_ethdev.h. >> - As a result of "ixgbe: check rxd number to avoid mbuf leak" (352078e8e) Vector Rx >> had to get the same treatment as Rx Bulk Alloc (see PATCH4 for more details). >> >> New in v3: >> - ixgbe_rx_alloc_bufs(): Always reset refcnt of the buffers to 1. Otherwise rte_pktmbuf_free() >> won't free them. >> >> New in v2: >> - Removed rte_eth_dev_data.lro_bulk_alloc and added ixgbe_hw.rx_bulk_alloc_allowed >> instead. >> - Unified the rx_pkt_bulk callback setting (a separate new patch). >> - Fixed a few styling and spelling issues. >> >> Vlad Zolotarov (3): >> ixgbe: Cleanups >> ixgbe: Code refactoring >> ixgbe: Add LRO support >> >> lib/librte_ether/rte_ethdev.h | 9 +- >> lib/librte_pmd_ixgbe/ixgbe_ethdev.c | 29 +- >> lib/librte_pmd_ixgbe/ixgbe_ethdev.h | 5 + >> lib/librte_pmd_ixgbe/ixgbe_rxtx.c | 738 ++++++++++++++++++++++++++++++++---- >> lib/librte_pmd_ixgbe/ixgbe_rxtx.h | 6 + >> 5 files changed, 710 insertions(+), 77 deletions(-) >> >> -- >> 2.1.0