From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ouyang Changchun Subject: [PATCH v3] virtio: Fix crash issue for secondary process Date: Fri, 27 Mar 2015 21:23:15 +0800 Message-ID: <1427462595-23701-1-git-send-email-changchun.ouyang@intel.com> References: <1427438150-6673-1-git-send-email-changchun.ouyang@intel.com> To: dev-VfR2kkLFssw@public.gmane.org Return-path: In-Reply-To: <1427438150-6673-1-git-send-email-changchun.ouyang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces-VfR2kkLFssw@public.gmane.org Sender: "dev" It needs Rx function even in the case of secondary process, and it also needs check if it supports mergeable feature or not. Signed-off-by: Changchun Ouyang --- Changes in v3 -- Extract a function to remove the duplicated codes; Changes in v2: -- Check if it supports mergeable or not for the secondary process. lib/librte_pmd_virtio/virtio_ethdev.c | 23 +++++++++++++++++------ 1 file changed, 17 insertions(+), 6 deletions(-) diff --git a/lib/librte_pmd_virtio/virtio_ethdev.c b/lib/librte_pmd_virtio/virtio_ethdev.c index 603be2d..d462b9d 100644 --- a/lib/librte_pmd_virtio/virtio_ethdev.c +++ b/lib/librte_pmd_virtio/virtio_ethdev.c @@ -1097,6 +1097,16 @@ virtio_interrupt_handler(__rte_unused struct rte_intr_handle *handle, } +static void +rx_func_get(struct rte_eth_dev *eth_dev) +{ + struct virtio_hw *hw = eth_dev->data->dev_private; + if (vtpci_with_feature(hw, VIRTIO_NET_F_MRG_RXBUF)) + eth_dev->rx_pkt_burst = &virtio_recv_mergeable_pkts; + else + eth_dev->rx_pkt_burst = &virtio_recv_pkts; +} + /* * This function is based on probe() function in virtio_pci.c * It returns 0 on success. @@ -1115,8 +1125,10 @@ eth_virtio_dev_init(struct rte_eth_dev *eth_dev) eth_dev->dev_ops = &virtio_eth_dev_ops; eth_dev->tx_pkt_burst = &virtio_xmit_pkts; - if (rte_eal_process_type() == RTE_PROC_SECONDARY) + if (rte_eal_process_type() == RTE_PROC_SECONDARY) { + rx_func_get(eth_dev); return 0; + } /* Allocate memory for storing MAC addresses */ eth_dev->data->mac_addrs = rte_zmalloc("virtio", ETHER_ADDR_LEN, 0); @@ -1144,14 +1156,13 @@ eth_virtio_dev_init(struct rte_eth_dev *eth_dev) vtpci_set_status(hw, VIRTIO_CONFIG_STATUS_DRIVER); virtio_negotiate_features(hw); + rx_func_get(eth_dev); + /* Setting up rx_header size for the device */ - if (vtpci_with_feature(hw, VIRTIO_NET_F_MRG_RXBUF)) { - eth_dev->rx_pkt_burst = &virtio_recv_mergeable_pkts; + if (vtpci_with_feature(hw, VIRTIO_NET_F_MRG_RXBUF)) hw->vtnet_hdr_size = sizeof(struct virtio_net_hdr_mrg_rxbuf); - } else { - eth_dev->rx_pkt_burst = &virtio_recv_pkts; + else hw->vtnet_hdr_size = sizeof(struct virtio_net_hdr); - } /* Copy the permanent MAC address to: virtio_hw */ virtio_get_hwaddr(hw); -- 1.8.4.2