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 987E2A04F3; Wed, 8 Jan 2020 17:16:15 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 270061DAA9; Wed, 8 Jan 2020 17:16:15 +0100 (CET) Received: from mellanox.co.il (mail-il-dmz.mellanox.com [193.47.165.129]) by dpdk.org (Postfix) with ESMTP id E69B81DAA0 for ; Wed, 8 Jan 2020 17:16:13 +0100 (CET) Received: from Internal Mail-Server by MTLPINE1 (envelope-from viacheslavo@mellanox.com) with ESMTPS (AES256-SHA encrypted); 8 Jan 2020 18:16:09 +0200 Received: from pegasus11.mtr.labs.mlnx (pegasus11.mtr.labs.mlnx [10.210.16.104]) by labmailer.mlnx (8.13.8/8.13.8) with ESMTP id 008GG95h000525; Wed, 8 Jan 2020 18:16:09 +0200 Received: from pegasus11.mtr.labs.mlnx (localhost [127.0.0.1]) by pegasus11.mtr.labs.mlnx (8.14.7/8.14.7) with ESMTP id 008GG9mt020227; Wed, 8 Jan 2020 16:16:09 GMT Received: (from viacheslavo@localhost) by pegasus11.mtr.labs.mlnx (8.14.7/8.14.7/Submit) id 008GG8Uf020226; Wed, 8 Jan 2020 16:16:08 GMT X-Authentication-Warning: pegasus11.mtr.labs.mlnx: viacheslavo set sender to viacheslavo@mellanox.com using -f From: Viacheslav Ovsiienko To: dev@dpdk.org Cc: matan@mellanox.com, rasland@mellanox.com, orika@mellanox.com Date: Wed, 8 Jan 2020 16:15:57 +0000 Message-Id: <1578500161-20156-1-git-send-email-viacheslavo@mellanox.com> X-Mailer: git-send-email 1.8.3.1 Subject: [dpdk-dev] [PATCH 0/4] net/mlx5: remove Tx descriptor reserved field usage 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" The current Tx datapath implementation in mlx5 PMD uses the 16-bit reserved field within transmit descriptor to store the indices of the elts array keeping the mbuf pointers to be freed on transmit completion. On completion PMD fetches the descriptor index, then fetches the elts array index from reserved field and frees the mbufs. The new ConnectX-6DX NIC might use this reserved descriptor field and existing implementation might not work in intended way. To resolve this issue the dedicated buffer is introduced to store indices to instead of descriptor field. Signed-off-by: Viacheslav Ovsiienko Viacheslav Ovsiienko (4): net/mlx5: move Tx complete request routine net/mlx5: update Tx error handling routine net/mlx5: add free on completion queue net/mlx5: engage free on completion queue drivers/net/mlx5/mlx5_rxtx.c | 153 ++++++++++++++++++++----------------------- drivers/net/mlx5/mlx5_rxtx.h | 13 ++-- drivers/net/mlx5/mlx5_txq.c | 19 +++++- 3 files changed, 94 insertions(+), 91 deletions(-) -- 1.8.3.1