From patchwork Sun Sep 27 23:42:42 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Monjalon X-Patchwork-Id: 78943 X-Patchwork-Delegate: thomas@monjalon.net Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id EB98EA04C0; Mon, 28 Sep 2020 01:48:51 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 741151D66F; Mon, 28 Sep 2020 01:44:11 +0200 (CEST) Received: from new4-smtp.messagingengine.com (new4-smtp.messagingengine.com [66.111.4.230]) by dpdk.org (Postfix) with ESMTP id 6E4461D5F3 for ; Mon, 28 Sep 2020 01:43:55 +0200 (CEST) Received: from compute7.internal (compute7.nyi.internal [10.202.2.47]) by mailnew.nyi.internal (Postfix) with ESMTP id 1EA02580131; Sun, 27 Sep 2020 19:43:54 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute7.internal (MEProxy); Sun, 27 Sep 2020 19:43:54 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=monjalon.net; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm2; bh=2rThejk/Rv4bf Rg4HNaKxkPgmHJq/9H/EjksWtNdqKk=; b=VEIUbpWkk0/GHuM0ZiQiVKOhcuawk YP4yrFYDQi+axjwiHr18KB4PEVooZC89FvXuY05lzbKRL1/G8k4FtFY4Zs4vhMxi gJ4LG0oX3OCrrZJ61oQj3kAPacKQLzDBn3feN/NP3Njd3aRnIMO5K802jlTJRRZ8 O8HOBZcq/7b5AXZFsa0sdGkADnpiACbP18CbIzFQQuSsdyCBxf7grYRE/LmXW6l4 36wLc2P9eb/vTyShrhHdDKZgd8fAH3l8gN72KHAnrRtpk1O51JCDHMvJGrQMl7Ah V/jr60XSn/G+K/Hm8u3VcEJyOJssEXPXloKIkGnEqK2k+o1VoMFIr/vuA== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm3; bh=2rThejk/Rv4bfRg4HNaKxkPgmHJq/9H/EjksWtNdqKk=; b=R4btM7Hw 6RX6+YcPZbjF6JHrg2XELlgClOEsRfKa1nhugsY+kn9c8CS0nRssenp+hdEgqF35 fJcysbNETpVpDdwGYv+xb7/mGQiPTnguFM8v5JsbNn4RTZ4jnfU7bzYG/FODTyH2 jN3+jCqSYspbOcqfQDPuuZ5wk37e4TVrY3gBDA3nbQ7uWgN9VsjNGpjjfkdUoRhc lpE7+Ng4aC8A1fGBiorQ3Ek740uE1JfkHXuWRBd/Oxzf/GFNbKIEGwQCmJYAwYbI bYVu7yStLaCC4WJ1Q7iszn334Yq9Wv+M6tVHkJqFbATo503IHllToY2xMR/MBhTX YKnNbHrBIXFZ2Q== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedujedrvdehgddvhecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenuc fjughrpefhvffufffkofgjfhgggfestdekredtredttdenucfhrhhomhepvfhhohhmrghs ucfoohhnjhgrlhhonhcuoehthhhomhgrshesmhhonhhjrghlohhnrdhnvghtqeenucggtf frrghtthgvrhhnpedvhefgiedvjeegtdevheefhfetleefgfeivefgffevfeejgedtgfeu tdehtdegveenucfkphepjeejrddufeegrddvtdefrddukeegnecuvehluhhsthgvrhfuih iivgepudeknecurfgrrhgrmhepmhgrihhlfhhrohhmpehthhhomhgrshesmhhonhhjrghl ohhnrdhnvght X-ME-Proxy: Received: from xps.monjalon.net (184.203.134.77.rev.sfr.net [77.134.203.184]) by mail.messagingengine.com (Postfix) with ESMTPA id 7B49F328005A; Sun, 27 Sep 2020 19:43:52 -0400 (EDT) From: Thomas Monjalon To: dev@dpdk.org Cc: ferruh.yigit@intel.com, arybchenko@solarflare.com, Rosen Xu , Stephen Hemminger , "K. Y. Srinivasan" , Haiyang Zhang , Long Li , Heinrich Kuhn , Gagandeep Singh , Akhil Goyal , Martin Spinler , Anatoly Burakov Date: Mon, 28 Sep 2020 01:42:42 +0200 Message-Id: <20200927234249.3198780-19-thomas@monjalon.net> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200927234249.3198780-1-thomas@monjalon.net> References: <20200913220711.3768597-1-thomas@monjalon.net> <20200927234249.3198780-1-thomas@monjalon.net> MIME-Version: 1.0 Subject: [dpdk-dev] [PATCH v2 18/25] drivers/net: accept removing device without any port 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 ports can be closed (i.e. completely released) before removing the whole device. Such case was wrongly considered an error by some drivers. If the device supports only one port, there is nothing much to free after the port is closed. Signed-off-by: Thomas Monjalon Reviewed-by: Ferruh Yigit Reviewed-by: Rosen Xu Reviewed-by: Rosen Xu Reviewed-by: Sachin Saxena --- drivers/net/ipn3ke/ipn3ke_ethdev.c | 6 ++---- drivers/net/kni/rte_eth_kni.c | 16 +++++++--------- drivers/net/netvsc/hn_ethdev.c | 2 +- drivers/net/nfp/nfp_net.c | 2 ++ drivers/net/pfe/pfe_ethdev.c | 6 ++---- drivers/net/szedata2/rte_eth_szedata2.c | 6 ++---- 6 files changed, 16 insertions(+), 22 deletions(-) diff --git a/drivers/net/ipn3ke/ipn3ke_ethdev.c b/drivers/net/ipn3ke/ipn3ke_ethdev.c index 027be29bd8..4446d2af9e 100644 --- a/drivers/net/ipn3ke/ipn3ke_ethdev.c +++ b/drivers/net/ipn3ke/ipn3ke_ethdev.c @@ -562,10 +562,8 @@ static int ipn3ke_vswitch_remove(struct rte_afu_device *afu_dev) afu_dev->device.name, i); ethdev = rte_eth_dev_allocated(afu_dev->device.name); - if (!ethdev) - return -ENODEV; - - rte_eth_dev_destroy(ethdev, ipn3ke_rpst_uninit); + if (ethdev != NULL) + rte_eth_dev_destroy(ethdev, ipn3ke_rpst_uninit); } ret = rte_eth_switch_domain_free(hw->switch_domain_id); diff --git a/drivers/net/kni/rte_eth_kni.c b/drivers/net/kni/rte_eth_kni.c index 45ab1b17a8..2a4058f7b0 100644 --- a/drivers/net/kni/rte_eth_kni.c +++ b/drivers/net/kni/rte_eth_kni.c @@ -488,17 +488,15 @@ eth_kni_remove(struct rte_vdev_device *vdev) /* find the ethdev entry */ eth_dev = rte_eth_dev_allocated(name); - if (eth_dev == NULL) - return -1; - - if (rte_eal_process_type() != RTE_PROC_PRIMARY) { - eth_kni_dev_stop(eth_dev); - return rte_eth_dev_release_port(eth_dev); + if (eth_dev != NULL) { + if (rte_eal_process_type() != RTE_PROC_PRIMARY) { + eth_kni_dev_stop(eth_dev); + return rte_eth_dev_release_port(eth_dev); + } + eth_kni_close(eth_dev); + rte_eth_dev_release_port(eth_dev); } - eth_kni_close(eth_dev); - rte_eth_dev_release_port(eth_dev); - is_kni_initialized--; if (is_kni_initialized == 0) rte_kni_close(); diff --git a/drivers/net/netvsc/hn_ethdev.c b/drivers/net/netvsc/hn_ethdev.c index 15d6e9762d..19a9eb6bc2 100644 --- a/drivers/net/netvsc/hn_ethdev.c +++ b/drivers/net/netvsc/hn_ethdev.c @@ -1092,7 +1092,7 @@ static int eth_hn_remove(struct rte_vmbus_device *dev) eth_dev = rte_eth_dev_allocated(dev->device.name); if (!eth_dev) - return -ENODEV; + return 0; /* port already released */ ret = eth_hn_dev_uninit(eth_dev); if (ret) diff --git a/drivers/net/nfp/nfp_net.c b/drivers/net/nfp/nfp_net.c index 9509dc8bd6..ce25cf1ed4 100644 --- a/drivers/net/nfp/nfp_net.c +++ b/drivers/net/nfp/nfp_net.c @@ -3739,6 +3739,8 @@ static int eth_nfp_pci_remove(struct rte_pci_device *pci_dev) int port = 0; eth_dev = rte_eth_dev_allocated(pci_dev->device.name); + if (eth_dev == NULL) + return 0; /* port already released */ if ((pci_dev->id.device_id == PCI_DEVICE_ID_NFP4000_PF_NIC) || (pci_dev->id.device_id == PCI_DEVICE_ID_NFP6000_PF_NIC)) { port = get_pf_port_number(eth_dev->data->name); diff --git a/drivers/net/pfe/pfe_ethdev.c b/drivers/net/pfe/pfe_ethdev.c index 187a0019ff..9d5415d9b1 100644 --- a/drivers/net/pfe/pfe_ethdev.c +++ b/drivers/net/pfe/pfe_ethdev.c @@ -1155,10 +1155,8 @@ pmd_pfe_remove(struct rte_vdev_device *vdev) return 0; eth_dev = rte_eth_dev_allocated(name); - if (eth_dev == NULL) - return -ENODEV; - - pfe_eth_exit(eth_dev, g_pfe); + if (eth_dev != NULL) + pfe_eth_exit(eth_dev, g_pfe); munmap(g_pfe->cbus_baseaddr, g_pfe->cbus_size); if (g_pfe->nb_devs == 0) { diff --git a/drivers/net/szedata2/rte_eth_szedata2.c b/drivers/net/szedata2/rte_eth_szedata2.c index 4325b9a30d..5f589dfa4c 100644 --- a/drivers/net/szedata2/rte_eth_szedata2.c +++ b/drivers/net/szedata2/rte_eth_szedata2.c @@ -1910,10 +1910,8 @@ static int szedata2_eth_pci_remove(struct rte_pci_device *pci_dev) pci_dev->device.name, i); PMD_DRV_LOG(DEBUG, "Removing eth_dev %s", name); eth_dev = rte_eth_dev_allocated(name); - if (!eth_dev) { - PMD_DRV_LOG(ERR, "eth_dev %s not found", name); - retval = retval ? retval : -ENODEV; - } + if (eth_dev == NULL) + continue; /* port already released */ ret = rte_szedata2_eth_dev_uninit(eth_dev); if (ret != 0) {