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 872F4A034F; Thu, 14 May 2020 17:33:44 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 666F51DA03; Thu, 14 May 2020 17:33:44 +0200 (CEST) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by dpdk.org (Postfix) with ESMTP id AE0611D9E9; Thu, 14 May 2020 17:33:42 +0200 (CEST) IronPort-SDR: hS/8tMsb4M9DRHJqOmhRIQbMSoCI/+q0ZYiy5+mLOMnTKTLOvF02sks9JDZJHqroLAiPGBE096 yi+XlsTYr4KA== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 May 2020 08:33:33 -0700 IronPort-SDR: +0CgGNj4Upt0jOUH1561tW+fUg+EWvUIRjgJwa4FjQMTO6Lj4jSEETgtzUxNpKK7L3cgZBhWRe oHiOvtfoceXQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.73,391,1583222400"; d="scan'208";a="410114768" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.213.224.91]) ([10.213.224.91]) by orsmga004.jf.intel.com with ESMTP; 14 May 2020 08:33:31 -0700 To: Rasesh Mody , dev@dpdk.org, jerinj@marvell.com Cc: GR-Everest-DPDK-Dev@marvell.com, stable@dpdk.org References: <20200505030943.1091-1-rmody@marvell.com> <20200514040938.25505-2-rmody@marvell.com> From: Ferruh Yigit Autocrypt: addr=ferruh.yigit@intel.com; prefer-encrypt=mutual; keydata= mQINBFXZCFABEADCujshBOAaqPZpwShdkzkyGpJ15lmxiSr3jVMqOtQS/sB3FYLT0/d3+bvy qbL9YnlbPyRvZfnP3pXiKwkRoR1RJwEo2BOf6hxdzTmLRtGtwWzI9MwrUPj6n/ldiD58VAGQ +iR1I/z9UBUN/ZMksElA2D7Jgg7vZ78iKwNnd+vLBD6I61kVrZ45Vjo3r+pPOByUBXOUlxp9 GWEKKIrJ4eogqkVNSixN16VYK7xR+5OUkBYUO+sE6etSxCr7BahMPKxH+XPlZZjKrxciaWQb +dElz3Ab4Opl+ZT/bK2huX+W+NJBEBVzjTkhjSTjcyRdxvS1gwWRuXqAml/sh+KQjPV1PPHF YK5LcqLkle+OKTCa82OvUb7cr+ALxATIZXQkgmn+zFT8UzSS3aiBBohg3BtbTIWy51jNlYdy ezUZ4UxKSsFuUTPt+JjHQBvF7WKbmNGS3fCid5Iag4tWOfZoqiCNzxApkVugltxoc6rG2TyX CmI2rP0mQ0GOsGXA3+3c1MCdQFzdIn/5tLBZyKy4F54UFo35eOX8/g7OaE+xrgY/4bZjpxC1 1pd66AAtKb3aNXpHvIfkVV6NYloo52H+FUE5ZDPNCGD0/btFGPWmWRmkPybzColTy7fmPaGz cBcEEqHK4T0aY4UJmE7Ylvg255Kz7s6wGZe6IR3N0cKNv++O7QARAQABtCVGZXJydWggWWln aXQgPGZlcnJ1aC55aWdpdEBpbnRlbC5jb20+iQJsBBMBCgBWAhsDAh4BAheABQsJCAcDBRUK CQgLBRYCAwEABQkKqZZ8FiEE0jZTh0IuwoTjmYHH+TPrQ98TYR8FAl6ha3sXGHZrczovL2tl eXMub3BlbnBncC5vcmcACgkQ+TPrQ98TYR8uLA//QwltuFliUWe60xwmu9sY38c1DXvX67wk UryQ1WijVdIoj4H8cf/s2KtyIBjc89R254KMEfJDao/LrXqJ69KyGKXFhFPlF3VmFLsN4XiT PSfxkx8s6kHVaB3O183p4xAqnnl/ql8nJ5ph9HuwdL8CyO5/7dC/MjZ/mc4NGq5O9zk3YRGO lvdZAp5HW9VKW4iynvy7rl3tKyEqaAE62MbGyfJDH3C/nV/4+mPc8Av5rRH2hV+DBQourwuC ci6noiDP6GCNQqTh1FHYvXaN4GPMHD9DX6LtT8Fc5mL/V9i9kEVikPohlI0WJqhE+vQHFzR2 1q5nznE+pweYsBi3LXIMYpmha9oJh03dJOdKAEhkfBr6n8BWkWQMMiwfdzg20JX0o7a/iF8H 4dshBs+dXdIKzPfJhMjHxLDFNPNH8zRQkB02JceY9ESEah3wAbzTwz+e/9qQ5OyDTQjKkVOo cxC2U7CqeNt0JZi0tmuzIWrfxjAUulVhBmnceqyMOzGpSCQIkvalb6+eXsC9V1DZ4zsHZ2Mx Hi+7pCksdraXUhKdg5bOVCt8XFmx1MX4AoV3GWy6mZ4eMMvJN2hjXcrreQgG25BdCdcxKgqp e9cMbCtF+RZax8U6LkAWueJJ1QXrav1Jk5SnG8/5xANQoBQKGz+yFiWcgEs9Tpxth15o2v59 gXK5Ag0EV9ZMvgEQAKc0Db17xNqtSwEvmfp4tkddwW9XA0tWWKtY4KUdd/jijYqc3fDD54ES YpV8QWj0xK4YM0dLxnDU2IYxjEshSB1TqAatVWz9WtBYvzalsyTqMKP3w34FciuL7orXP4Ai bPtrHuIXWQOBECcVZTTOdZYGAzaYzxiAONzF9eTiwIqe9/oaOjTwTLnOarHt16QApTYQSnxD UQljeNvKYt1lZE/gAUUxNLWsYyTT+22/vU0GDUahsJxs1+f1yEr+OGrFiEAmqrzpF0lCS3f/ 3HVTU6rS9cK3glVUeaTF4+1SK5ZNO35piVQCwphmxa+dwTG/DvvHYCtgOZorTJ+OHfvCnSVj sM4kcXGjJPy3JZmUtyL9UxEbYlrffGPQI3gLXIGD5AN5XdAXFCjjaID/KR1c9RHd7Oaw0Pdc q9UtMLgM1vdX8RlDuMGPrj5sQrRVbgYHfVU/TQCk1C9KhzOwg4Ap2T3tE1umY/DqrXQgsgH7 1PXFucVjOyHMYXXugLT8YQ0gcBPHy9mZqw5mgOI5lCl6d4uCcUT0l/OEtPG/rA1lxz8ctdFB VOQOxCvwRG2QCgcJ/UTn5vlivul+cThi6ERPvjqjblLncQtRg8izj2qgmwQkvfj+h7Ex88bI 8iWtu5+I3K3LmNz/UxHBSWEmUnkg4fJlRr7oItHsZ0ia6wWQ8lQnABEBAAGJAjwEGAEKACYC GwwWIQTSNlOHQi7ChOOZgcf5M+tD3xNhHwUCXqFrngUJCKxSYAAKCRD5M+tD3xNhH3YWD/9b cUiWaHJasX+OpiuZ1Li5GG3m9aw4lR/k2lET0UPRer2Jy1JsL+uqzdkxGvPqzFTBXgx/6Byz EMa2mt6R9BCyR286s3lxVS5Bgr5JGB3EkpPcoJT3A7QOYMV95jBiiJTy78Qdzi5LrIu4tW6H o0MWUjpjdbR01cnj6EagKrDx9kAsqQTfvz4ff5JIFyKSKEHQMaz1YGHyCWhsTwqONhs0G7V2 0taQS1bGiaWND0dIBJ/u0pU998XZhmMzn765H+/MqXsyDXwoHv1rcaX/kcZIcN3sLUVcbdxA WHXOktGTQemQfEpCNuf2jeeJlp8sHmAQmV3dLS1R49h0q7hH4qOPEIvXjQebJGs5W7s2vxbA 5u5nLujmMkkfg1XHsds0u7Zdp2n200VC4GQf8vsUp6CSMgjedHeF9zKv1W4lYXpHp576ZV7T GgsEsvveAE1xvHnpV9d7ZehPuZfYlP4qgo2iutA1c0AXZLn5LPcDBgZ+KQZTzm05RU1gkx7n gL9CdTzVrYFy7Y5R+TrE9HFUnsaXaGsJwOB/emByGPQEKrupz8CZFi9pkqPuAPwjN6Wonokv ChAewHXPUadcJmCTj78Oeg9uXR6yjpxyFjx3vdijQIYgi5TEGpeTQBymLANOYxYWYOjXk+ae dYuOYKR9nbPv+2zK9pwwQ2NXbUBystaGyQ== Message-ID: <8d7ab22c-f986-3e79-c9a6-384bf10e86b9@intel.com> Date: Thu, 14 May 2020 16:33:29 +0100 MIME-Version: 1.0 In-Reply-To: <20200514040938.25505-2-rmody@marvell.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Subject: Re: [dpdk-dev] [PATCH v2 2/2] examples/kni: fix MTU change to setup Tx queue 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" On 5/14/2020 5:09 AM, Rasesh Mody wrote: > This patch adds a fix to setup Tx queue when changing KNI interface MTU. > It ensures device can safely start txq post MTU change operation. > > Fixes: fc9ee41b7016 ("examples/kni: convert to new ethdev offloads API") > Cc: stable@dpdk.org > > Signed-off-by: Rasesh Mody > --- > examples/kni/main.c | 14 +++++++++++++- > 1 file changed, 13 insertions(+), 1 deletion(-) > > diff --git a/examples/kni/main.c b/examples/kni/main.c > index 6b4ab3b5b..7a927a50c 100644 > --- a/examples/kni/main.c > +++ b/examples/kni/main.c > @@ -774,9 +774,11 @@ kni_change_mtu(uint16_t port_id, unsigned int new_mtu) > { > int ret; > uint16_t nb_rxd = NB_RXD; > + uint16_t nb_txd = NB_TXD; > struct rte_eth_conf conf; > struct rte_eth_dev_info dev_info; > struct rte_eth_rxconf rxq_conf; > + struct rte_eth_txconf txq_conf; > > if (!rte_eth_dev_is_valid_port(port_id)) { > RTE_LOG(ERR, APP, "Invalid port id %d\n", port_id); > @@ -804,7 +806,7 @@ kni_change_mtu(uint16_t port_id, unsigned int new_mtu) > return ret; > } > > - ret = rte_eth_dev_adjust_nb_rx_tx_desc(port_id, &nb_rxd, NULL); > + ret = rte_eth_dev_adjust_nb_rx_tx_desc(port_id, &nb_rxd, &nb_txd); > if (ret < 0) > rte_exit(EXIT_FAILURE, "Could not adjust number of descriptors " > "for port%u (%d)\n", (unsigned int)port_id, > @@ -829,6 +831,16 @@ kni_change_mtu(uint16_t port_id, unsigned int new_mtu) > return ret; > } > > + txq_conf = dev_info.default_txconf; > + txq_conf.offloads = conf.txmode.offloads; > + ret = rte_eth_tx_queue_setup(port_id, 0, nb_txd, > + rte_eth_dev_socket_id(port_id), &txq_conf); > + if (ret < 0) { > + RTE_LOG(ERR, APP, "Fail to setup Tx queue of port %d\n", > + port_id); > + return ret; > + } > + > /* Restart specific port */ > ret = rte_eth_dev_start(port_id); > if (ret < 0) { > Hi Rasesh, The change looks OK but I am trying to understand the need for it, already asked in other tread, will follow there.