From patchwork Sat Nov 5 09:41:03 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yuanhan Liu X-Patchwork-Id: 16950 Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [IPv6:::1]) by dpdk.org (Postfix) with ESMTP id 13E085688; Sat, 5 Nov 2016 10:41:26 +0100 (CET) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by dpdk.org (Postfix) with ESMTP id EE211106A for ; Sat, 5 Nov 2016 10:40:29 +0100 (CET) Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga102.jf.intel.com with ESMTP; 05 Nov 2016 02:40:29 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.31,448,1473145200"; d="scan'208";a="187945165" Received: from yliu-dev.sh.intel.com ([10.239.67.162]) by fmsmga004.fm.intel.com with ESMTP; 05 Nov 2016 02:40:27 -0700 From: Yuanhan Liu To: dev@dpdk.org Cc: Thomas Monjalon , Tan Jianfeng , Kevin Traynor , Ilya Maximets , Kyle Larose , Maxime Coquelin , Yuanhan Liu Date: Sat, 5 Nov 2016 17:41:03 +0800 Message-Id: <1478338865-26126-9-git-send-email-yuanhan.liu@linux.intel.com> X-Mailer: git-send-email 1.9.0 In-Reply-To: <1478338865-26126-1-git-send-email-yuanhan.liu@linux.intel.com> References: <1478189400-14606-1-git-send-email-yuanhan.liu@linux.intel.com> <1478338865-26126-1-git-send-email-yuanhan.liu@linux.intel.com> Subject: [dpdk-dev] [PATCH v2 08/10] net/virtio: remove started field X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" The "hw->started" field was introduced to stop touching queues on restart. We never touches queues on restart any more, thus it's safe to remove this flag. Signed-off-by: Yuanhan Liu Reviewed-by: Maxime Coquelin --- drivers/net/virtio/virtio_ethdev.c | 15 ++------------- drivers/net/virtio/virtio_pci.h | 1 - 2 files changed, 2 insertions(+), 14 deletions(-) diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c index 15c48b9..5ec3e0e 100644 --- a/drivers/net/virtio/virtio_ethdev.c +++ b/drivers/net/virtio/virtio_ethdev.c @@ -602,7 +602,6 @@ virtio_dev_close(struct rte_eth_dev *dev) if (dev->data->dev_flags & RTE_ETH_DEV_INTR_LSC) vtpci_irq_config(hw, VIRTIO_MSI_NO_VECTOR); vtpci_reset(hw); - hw->started = 0; virtio_dev_free_mbufs(dev); virtio_free_queues(hw); } @@ -1345,17 +1344,14 @@ static int eth_virtio_dev_uninit(struct rte_eth_dev *eth_dev) { struct rte_pci_device *pci_dev; - struct virtio_hw *hw = eth_dev->data->dev_private; PMD_INIT_FUNC_TRACE(); if (rte_eal_process_type() == RTE_PROC_SECONDARY) return -EPERM; - if (hw->started == 1) { - virtio_dev_stop(eth_dev); - virtio_dev_close(eth_dev); - } + virtio_dev_stop(eth_dev); + virtio_dev_close(eth_dev); pci_dev = eth_dev->pci_dev; eth_dev->dev_ops = NULL; @@ -1474,7 +1470,6 @@ static int virtio_dev_start(struct rte_eth_dev *dev) { uint16_t nb_queues, i; - struct virtio_hw *hw = dev->data->dev_private; struct virtnet_rx *rxvq; struct virtnet_tx *txvq __rte_unused; @@ -1494,12 +1489,6 @@ virtio_dev_start(struct rte_eth_dev *dev) /* Initialize Link state */ virtio_dev_link_update(dev, 0); - /* On restart after stop do not touch queues */ - if (hw->started) - return 0; - - hw->started = 1; - /*Notify the backend *Otherwise the tap backend might already stop its queue due to fullness. *vhost backend will have no chance to be waked up diff --git a/drivers/net/virtio/virtio_pci.h b/drivers/net/virtio/virtio_pci.h index f63f76c..de271bf 100644 --- a/drivers/net/virtio/virtio_pci.h +++ b/drivers/net/virtio/virtio_pci.h @@ -252,7 +252,6 @@ struct virtio_hw { uint16_t vtnet_hdr_size; uint8_t vlan_strip; uint8_t use_msix; - uint8_t started; uint8_t modern; uint8_t use_simple_rxtx; uint8_t mac_addr[ETHER_ADDR_LEN];