From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 3B365A034E for ; Thu, 7 Nov 2019 18:02:51 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 12A281BEA7; Thu, 7 Nov 2019 18:02:51 +0100 (CET) Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by dpdk.org (Postfix) with ESMTP id 7E10B2BE9; Thu, 7 Nov 2019 18:02:47 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga106.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 07 Nov 2019 09:02:46 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.68,278,1569308400"; d="scan'208";a="233323027" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.96]) ([10.237.221.96]) by fmsmga002.fm.intel.com with ESMTP; 07 Nov 2019 09:02:44 -0800 To: Ori Kam , Jack Min , Slava Ovsiienko , Thomas Monjalon , Adrien Mazarguil , Andrew Rybchenko Cc: "dev@dpdk.org" , "stable@dpdk.org" References: <1580ef9551619fbe0a1f85590cebaf4b026f7f0b.1572944613.git.jackmin@mellanox.com> From: Ferruh Yigit Openpgp: preference=signencrypt Autocrypt: addr=ferruh.yigit@intel.com; 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charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Subject: Re: [dpdk-stable] [PATCH v2] ethdev: fix expand RSS flows X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org Sender: "stable" On 11/6/2019 10:12 AM, Ori Kam wrote: > > >> -----Original Message----- >> From: Xiaoyu Min >> Sent: Tuesday, November 5, 2019 3:43 PM >> To: Ori Kam ; Slava Ovsiienko >> ; Thomas Monjalon ; >> Adrien Mazarguil ; Ferruh Yigit >> ; Andrew Rybchenko >> Cc: dev@dpdk.org; stable@dpdk.org >> Subject: [PATCH v2] ethdev: fix expand RSS flows >> >> rte_flow_expand_rss expands rte_flow item list based on the RSS >> types. In another word, some additional rules are added if the user >> specified items are not complete enough according to the RSS type, >> for example: >> >> ... pattern eth / end actions rss type tcp end ... >> >> User only provides item eth but want to do RSS on tcp traffic. >> The pattern is not complete enough to filter TCP traffic only. >> This will be a problem for some HWs. >> So some PMDs use rte_flow_expand_rss to expand above user provided >> flow to: >> >> ... pattern eth / end actions rss types tcp >> ... pattern eth / ipv4 / tcp / end actions rss types tcp ... >> ... pattern eth / ipv6 / tcp / end actions rss types tcp ... >> >> in order to filter TCP traffic only and do RSS correctly. >> >> However the current expansion cannot handle pattern as below, which >> provides ethertype or ip next proto instead of providing an item: >> >> ... pattern eth type is 0x86DD / end actions rss types tcp ... >> >> rte_flow_expand_rss will expand above flow to: >> >> ... pattern eth type is 0x86DD / ipv4 / tcp end ... >> >> which has conflicting values: 0x86DD vs. ipv4 and some HWs will refuse >> to create flow. >> >> This patch will fix above by checking the last item's spec and to >> expand RSS flows correctly. >> >> Currently only support to complete item list based on ether type or ip >> next proto. >> >> Fixes: 4ed05fcd441b ("ethdev: add flow API to expand RSS flows") >> Cc: stable@dpdk.org >> >> Signed-off-by: Xiaoyu Min >> --- >> v2: >> * more clear commit message >> --- > > Acked-by: Ori Kam > Applied to dpdk-next-net/master, thanks.