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 2618AA00E6 for ; Fri, 9 Aug 2019 11:56:09 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 222F3231E; Fri, 9 Aug 2019 11:56:08 +0200 (CEST) Received: from mx0b-0016f401.pphosted.com (mx0a-0016f401.pphosted.com [67.231.148.174]) by dpdk.org (Postfix) with ESMTP id 4FDAB2082 for ; Fri, 9 Aug 2019 11:56:06 +0200 (CEST) Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id x799smkV025625; Fri, 9 Aug 2019 02:56:05 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=pfpt0818; bh=+tbxZuR8fkePzpnBFzKr24c9Rbe7Mwp2SrLdKK5W/yo=; b=QeL+9ARGVvP+FVe24GC8Aja/YIbGvZgv/bxhAA1+rY1BYSYF6Jh7SvfOip2eU5L5dwGy EeyB2qJCbPEL/If9nwzIgEFqv/c3LUJe9wLT9Db5Lpa/KLNSaIjEbJ0/NrZxk5JnMJ9n jwiyQZ5949l3E+6BlZUyDs6GdtbW/oRGh8VfjDfGJfogR85kMmhDBNJpXO6ZkAmhY+ar 6efHTPA7mS4ktNTBZ8dKKYh6EYqLICnrT+PRG833minKRJo8A33E2wLVCLnKH6Ek2xuS d5+tvgCmcr9KcSFf0+KZkfL7pdQPrmzUyIRxZNxTuhfubY2XitRWlPu6iZ1VGiRu/vTw MA== Received: from sc-exch04.marvell.com ([199.233.58.184]) by mx0a-0016f401.pphosted.com with ESMTP id 2u8cqjdma2-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Fri, 09 Aug 2019 02:56:05 -0700 Received: from SC-EXCH01.marvell.com (10.93.176.81) by SC-EXCH04.marvell.com (10.93.176.84) with Microsoft SMTP Server (TLS) id 15.0.1367.3; Fri, 9 Aug 2019 02:56:04 -0700 Received: from maili.marvell.com (10.93.176.43) by SC-EXCH01.marvell.com (10.93.176.81) with Microsoft SMTP Server id 15.0.1367.3 via Frontend Transport; Fri, 9 Aug 2019 02:56:04 -0700 Received: from BG-LT7430.marvell.com (bg-lt7430.marvell.com [10.28.20.237]) by maili.marvell.com (Postfix) with ESMTP id E4FCD3F7040; Fri, 9 Aug 2019 02:56:00 -0700 (PDT) From: To: , , , , , , , Neil Horman , John McNamara , "Marko Kovacevic" CC: , Pavan Nikhilesh Date: Fri, 9 Aug 2019 15:25:59 +0530 Message-ID: <20190809095559.1900-1-pbhagavatula@marvell.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190809081740.1607-1-pbhagavatula@marvell.com> References: <20190809081740.1607-1-pbhagavatula@marvell.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:5.22.84,1.0.8 definitions=2019-08-09_02:2019-08-07,2019-08-09 signatures=0 Subject: [dpdk-dev] [patch v5] doc: announce API change in ethdev offload flags 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: , Errors-To: dev-bounces@dpdk.org Sender: "dev" From: Pavan Nikhilesh Add new offload flags ``DEV_RX_OFFLOAD_RSS_HASH`` and ``DEV_RX_OFFLOAD_FLOW_MARK``. Add new function ``rte_eth_dev_set_supported_ptypes`` to allow application to set specific ptypes to be updated in ``rte_mbuf::packet_type`` Signed-off-by: Pavan Nikhilesh Acked-by: Andrew Rybchenko Acked-by: Jerin Jacob Acked-by: Hemant Agrawal --- v5 Changes: - Reword for clarity. v4 Changes: - Remove DEV_RX_OFFLOAD_PTYPE proposition and replace it with rte_eth_dev_set_supported_ptypes (Konstantin). v3 Changes: - DEV_RX_OFFLOAD_RSS -> DEV_RX_OFFLOAD_RSS_HASH (andrew). v2 Changes: - Reword for clarity. doc/guides/rel_notes/deprecation.rst | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst index 37b8592b6..b0391366c 100644 --- a/doc/guides/rel_notes/deprecation.rst +++ b/doc/guides/rel_notes/deprecation.rst @@ -78,3 +78,27 @@ Deprecation Notices to set new power environment if power environment was already initialized. In this case the function will return -1 unless the environment is unset first (using ``rte_power_unset_env``). Other function usage scenarios will not change. + +* ethdev: New offload flags ``DEV_RX_OFFLOAD_RSS_HASH`` and ``DEV_RX_OFFLOAD_FLOW_MARK`` + will be added in 19.11. + This will allow application to enable or disable PMDs from updating + ``rte_mbuf::hash::rss`` and ``rte_mbuf::hash::fdir`` respectively. + This scheme will allow PMDs to avoid writes to ``rte_mbuf`` fields on Rx and + thereby improve Rx performance if application wishes do so. + In 19.11 PMDs will still update the fields even when the offloads are not + enabled. + +* ethdev: New function ``rte_eth_dev_set_supported_ptypes`` will be added in + 19.11. + This will allow application to request PMD to set specific ptypes defined + through ``rte_eth_dev_set_supported_ptypes`` in ``rte_mbuf::packet_type``. + If application doesn't want any ptype information it can call + ``rte_eth_dev_set_supported_ptypes(ethdev_id, RTE_PTYPE_UNKNOWN)`` and PMD + will set ``rte_mbuf::packet_type`` to ``0``. + If application doesn't call ``rte_eth_dev_set_supported_ptypes`` PMD can + return ``rte_mbuf::packet_type`` with ``rte_eth_dev_get_supported_ptypes``. + If application is interested only in L2/L3 layer, it can inform the PMD to update + ``rte_mbuf::packet_type`` with L2/L3 ptype by calling + ``rte_eth_dev_set_supported_ptypes(ethdev_id, RTE_PTYPE_L2_MASK | RTE_PTYPE_L3_MASK)``. + This scheme will allow PMDs to avoid lookup to internal ptype table on Rx and + thereby improve Rx performance if application wishes do so. -- 2.17.1