From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id 0E5B11B5C8 for ; Thu, 12 Jul 2018 03:15:06 +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 fmsmga103.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 11 Jul 2018 18:15:05 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.51,339,1526367600"; d="scan'208";a="244990536" Received: from dpdk51.sh.intel.com ([10.67.110.190]) by fmsmga006.fm.intel.com with ESMTP; 11 Jul 2018 18:15:03 -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: Thu, 12 Jul 2018 09:15:11 +0800 Message-Id: <20180712011514.45006-17-qi.z.zhang@intel.com> X-Mailer: git-send-email 2.13.6 In-Reply-To: <20180712011514.45006-1-qi.z.zhang@intel.com> References: <20180607123849.14439-1-qi.z.zhang@intel.com> <20180712011514.45006-1-qi.z.zhang@intel.com> Subject: [dpdk-dev] [PATCH v13 16/19] net/tap: enable hotplug 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: Thu, 12 Jul 2018 01:15:07 -0000 Attach port from secondary should ignore devargs since the private device is not necessary to support. Also 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 | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/net/tap/rte_eth_tap.c b/drivers/net/tap/rte_eth_tap.c index df396bfde..a58d5ebe6 100644 --- a/drivers/net/tap/rte_eth_tap.c +++ b/drivers/net/tap/rte_eth_tap.c @@ -1750,8 +1750,7 @@ rte_pmd_tap_probe(struct rte_vdev_device *dev) name = rte_vdev_device_name(dev); params = rte_vdev_device_args(dev); - if (rte_eal_process_type() == RTE_PROC_SECONDARY && - strlen(params) == 0) { + if (rte_eal_process_type() == RTE_PROC_SECONDARY) { eth_dev = rte_eth_dev_attach_secondary(name); if (!eth_dev) { TAP_LOG(ERR, "Failed to probe %s", name); @@ -1759,6 +1758,7 @@ 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 +1827,17 @@ 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) + return rte_eth_dev_release_port_private(eth_dev); internals = eth_dev->data->dev_private; -- 2.13.6