From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by dpdk.org (Postfix) with ESMTP id 7A81D1BED5 for ; Fri, 6 Jul 2018 16:18:28 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 06 Jul 2018 07:18:27 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.51,316,1526367600"; d="scan'208";a="243511389" Received: from dpdk51.sh.intel.com ([10.67.110.190]) by fmsmga006.fm.intel.com with ESMTP; 06 Jul 2018 07:18:14 -0700 From: Qi Zhang To: thomas@monjalon.net, anatoly.burakov@intel.com Cc: konstantin.ananyev@intel.com, dev@dpdk.org, bruce.richardson@intel.com, ferruh.yigit@intel.com, benjamin.h.shelton@intel.com, narender.vangati@intel.com, Qi Zhang Date: Fri, 6 Jul 2018 22:18:23 +0800 Message-Id: <20180706141826.204044-17-qi.z.zhang@intel.com> X-Mailer: git-send-email 2.13.6 In-Reply-To: <20180706141826.204044-1-qi.z.zhang@intel.com> References: <20180607123849.14439-1-qi.z.zhang@intel.com> <20180706141826.204044-1-qi.z.zhang@intel.com> Subject: [dpdk-dev] [PATCH v9 16/19] net/tap: enable port detach on secondary process 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: , X-List-Received-Date: Fri, 06 Jul 2018 14:18:29 -0000 Previously, detach port on a secondary process will mess primary process and cause the same device can't be attached back again. A secondary process should use rte_eth_release_port_private to release a port. Signed-off-by: Qi Zhang Acked-by: Keith Wiles --- drivers/net/tap/rte_eth_tap.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/drivers/net/tap/rte_eth_tap.c b/drivers/net/tap/rte_eth_tap.c index df396bfde..bb5f20b01 100644 --- a/drivers/net/tap/rte_eth_tap.c +++ b/drivers/net/tap/rte_eth_tap.c @@ -1759,6 +1759,7 @@ rte_pmd_tap_probe(struct rte_vdev_device *dev) } /* TODO: request info from primary to set up Rx and Tx */ eth_dev->dev_ops = &ops; + eth_dev->device = &dev->device; rte_eth_dev_probing_finish(eth_dev); return 0; } @@ -1827,12 +1828,24 @@ rte_pmd_tap_remove(struct rte_vdev_device *dev) { struct rte_eth_dev *eth_dev = NULL; struct pmd_internals *internals; + const char *name; int i; + name = rte_vdev_device_name(dev); /* find the ethdev entry */ - eth_dev = rte_eth_dev_allocated(rte_vdev_device_name(dev)); + eth_dev = rte_eth_dev_allocated(name); if (!eth_dev) - return 0; + return -ENODEV; + + if (rte_eal_process_type() != RTE_PROC_PRIMARY) { + /* detach device on local pprocess only */ + if (strlen(rte_vdev_device_args(dev)) == 0) + return rte_eth_dev_release_port_private(eth_dev); + /** + * else this is a private device for current process + * so continue with normal detach scenario + */ + } internals = eth_dev->data->dev_private; -- 2.13.6